阅读说明：本技术 一种基于磁场的rfid读取器天线触点修复装置 (RFID reader antenna contact prosthetic devices based on magnetic field ) 是由 张益民 于 2021-08-20 设计创作，主要内容包括：本发明涉及一种RFID读取器领域,尤其涉及一种基于磁场的RFID读取器天线触点修复装置。本发明的技术问题是：现有装置只能逐个对天线模块上的触点进行修复。本发明的技术实施方案为：一种基于磁场的RFID读取器天线触点修复装置,包括有第一底板和定位组件等；第一底板中部上表面固接有定位组件。本发明使用时实现了自动通过磁场使五个天线模块上的触点处于同一直线上并等距排列,以便于同时对五个触点进行修复操作,提高效率,还实现了自动同时将五个不同损耗的触点打磨成同一高度,便于焊接操作,同时自动将打磨产生的粉末去除并收集,并通过磁力对收集的金属粉末进一步固定,防止风力将其吹出,同时自动将残留在触点背部的金属粉末去除并收集。(The invention relates to the field of RFID readers, in particular to a magnetic field-based RFID reader antenna contact repairing device. The technical problem of the invention is that: the existing devices can only repair the contacts on the antenna module one by one. The technical implementation scheme of the invention is as follows: a RFID reader antenna contact repairing device based on a magnetic field comprises a first bottom plate, a positioning assembly and the like; the upper surface of the middle part of the first bottom plate is fixedly connected with a positioning component. When the device is used, the contacts on the five antenna modules are automatically positioned on the same straight line and arranged at equal intervals through the magnetic field, so that the five contacts can be repaired at the same time, the efficiency is improved, the five contacts with different losses can be automatically polished to the same height at the same time, the welding operation is convenient, the powder generated by polishing is automatically removed and collected, the collected metal powder is further fixed through magnetic force, the metal powder is prevented from being blown out by wind power, and the metal powder remained on the back of the contacts is automatically removed and collected.)

1. A magnetic field-based RFID reader antenna contact repairing device comprises a first bottom plate (1), a first supporting frame (2), a second supporting frame (3), a third supporting frame (4), a fourth supporting frame (5), a fifth supporting frame (6) and a sixth supporting frame (7); a first supporting frame (2) is fixedly connected in front of the lower surface of the first bottom plate (1); a second supporting frame (3) is fixedly connected to the rear part of the lower surface of the first bottom plate (1); a third supporting frame (4) is fixedly connected to the front right side of the upper surface of the first bottom plate (1); a fourth supporting frame (5) is fixedly connected to the front left side of the upper surface of the first bottom plate (1); a fifth supporting frame (6) is fixedly connected to the left side of the upper surface of the first bottom plate (1); a sixth supporting frame (7) is fixedly connected to the rear part of the upper surface of the first bottom plate (1); the method is characterized in that: the device also comprises a positioning component, a grinding component and a welding component; the upper surface of the middle part of the first bottom plate (1) is fixedly connected with a positioning component; a polishing component is fixedly connected to the middle right side of the upper surface of the first bottom plate (1); the rear part of the third support frame (4) is fixedly connected with a positioning component; the rear part of the fourth supporting frame (5) is fixedly connected with a positioning component; the middle upper part of the fifth supporting frame (6) is fixedly connected with a polishing component; the front part of the sixth supporting frame (7) is fixedly connected with a welding component; the positioning component is in transmission connection with the polishing component.

2. A magnetic field-based RFID reader antenna contact repair arrangement as claimed in claim 1, wherein: the positioning assembly comprises a seventh support frame (201), an eighth support frame (202), a second driving piece (203), a first transmission rod (204), a first driving wheel (205), a first bevel gear (206), a second bevel gear (207), a third driving piece (208), a third bevel gear (209), a first screw rod (2010), a first slider (2011), a second slider (2012), a first limiting rod (2013), a second limiting rod (2014), a first spring (2015), a first linkage block (2016), a first limiting block (2017), a second linkage block (2018), a second limiting block (2019), a bearing mechanism and an adjusting mechanism; a seventh supporting frame (201) is fixedly connected to the right side of the upper surface of the first bottom plate (1); an eighth supporting frame (202) is fixedly connected to the left side of the upper surface of the first bottom plate (1); a second limiting rod (2014) is fixedly connected to the front part of the upper surface of the fourth support frame (5); a first spring (2015) is fixedly connected to the front part of the upper surface of the fourth support frame (5); a second driving piece (203) is fixedly connected to the rear end face of the seventh supporting frame (201); a third driving piece (208) is fixedly connected to the middle rear part of the seventh supporting frame (201); the front part of the seventh supporting frame (201) is rotatably connected with a first screw rod (2010); the output end of the second driving piece (203) is fixedly connected with a first transmission rod (204); the outer surface of the first transmission rod (204) is rotationally connected with a seventh supporting frame (201); a first driving wheel (205) is fixedly connected to the middle part of the first driving rod (204); a first bevel gear (206) is fixedly connected to the front part of the first transmission rod (204); the first driving wheel (205) is in transmission connection with the grinding assembly through a belt; a second bevel gear (207) is fixedly connected to the left part of the third driving part (208); a third bevel gear (209) is fixedly connected to the rear part of the first screw rod (2010); the front part of the first screw rod (2010) is in transmission connection with a first sliding block (2011); a second sliding block (2012) is fixedly connected to the upper part of the first sliding block (2011); the upper part of the second sliding block (2012) is fixedly connected with a bearing mechanism; the left part of the second sliding block (2012) is connected with a first limiting rod (2013) in a sliding way; a second linkage block (2018) is fixedly connected to the left part of the second sliding block (2012); the outer surface of the first limiting rod (2013) is fixedly connected with an eighth supporting frame (202); the outer surface of the second limiting rod (2014) is connected with a first linkage block (2016) in a sliding mode; the first spring (2015) is fixedly connected with the first linkage block (2016); a first limit block (2017) is fixedly connected to the left part of the first linkage block (2016); an adjusting mechanism is fixedly connected to the lower surface of the first linkage block (2016); five groups of the bearing mechanism and the adjusting mechanism are arranged at equal intervals.

3. A magnetic field-based RFID reader antenna contact repair arrangement as claimed in claim 2, wherein: the second limiting rod (2014), the first spring (2015), the first limiting block (2017), the second linkage block (2018) and the second limiting block (2019) are symmetrically arranged in two groups by the central line of the first linkage block (2016).

4. A magnetic field-based RFID reader antenna contact repair arrangement as claimed in claim 3, wherein: the bearing mechanism comprises a third linkage block (202001), a third limiting rod (202002), a third sliding block (202003), a fourth linkage block (202004), a fourth limiting rod (202005), a fourth sliding block (202006), a first bearing block (202007), a fourth driving piece (202008) and a first sucker (202009); a third link block (202001) is fixedly connected to the upper surface of the second slide block (2012); a third limiting rod (202002) is fixedly connected to the upper part of the third linkage block (202001); a group of fourth driving pieces (202008) are fixedly connected to the front and the rear parts of the third linkage block (202001); the middle part of the third limiting rod (202002) is connected with a third sliding block (202003) in a sliding way; a fourth linkage block (202004) is fixedly connected to the upper part of the third slide block (202003); a fourth limiting rod (202005) is fixedly connected to the upper part of the fourth linkage block (202004); the middle part of the fourth limiting rod (202005) is connected with a fourth sliding block (202006) in a sliding way; a first bearing block (202007) is fixedly connected to the upper part of the fourth sliding block (202006); two groups of first suction cups (202009) are respectively fixedly connected to the upper parts of the two groups of fourth driving pieces (202008).

5. A magnetic field-based RFID reader antenna contact repair arrangement as claimed in claim 4, wherein: the adjusting mechanism comprises a fifth linkage block (202101), a sixth linkage block (202102) and a first electromagnetic force piece (202103); a fifth linkage block (202101) is fixedly connected to the lower surface of the first linkage block (2016); the lower surface of the fifth linkage block (202101) is fixedly connected with four groups of sixth linkage blocks (202102); four groups of first electromagnetic force elements (202103) are fixedly connected to the lower parts of the four groups of sixth linkage blocks (202102).

6. A magnetic field-based RFID reader antenna contact repair arrangement as claimed in claim 5, wherein: the polishing assembly comprises a ninth support frame (301), a tenth support frame (302), a first loop bar (303), a second transmission wheel (304), a first spline shaft (305), a fifth slider (306), a fifth driving piece (307), a fourth bevel gear (308), a fifth bevel gear (309), a second screw rod (3010), a sixth slider (3011), a seventh linkage block (3012), a seventh slider (3013), a fifth limiting rod (3014), an eighth linkage block (3015), a sixth limiting rod (3016), a second spring (3017) and a first polishing block (3018); a tenth supporting frame (302) is fixedly connected to the right middle part of the upper surface of the first bottom plate (1); a ninth supporting frame (301) is fixedly connected to the rear right of the upper surface of the first bottom plate (1); a fifth limiting rod (3014) is fixedly connected to the upper part of the fifth support frame (6); the upper part of the ninth supporting frame (301) is rotatably connected with a first loop bar (303); a fifth driving piece (307) is fixedly connected to the middle upper part of the ninth supporting frame (301); a second driving wheel (304) is fixedly connected to the rear part of the first loop bar (303); the front part of the first loop bar (303) is connected with a first spline shaft (305) in a sliding way; the second transmission wheel (304) is in transmission connection with the first transmission wheel (205) through a belt; the middle part of the first spline shaft (305) is rotationally connected with a fifth sliding block (306); a fourth bevel gear (308) is fixedly connected to the front part of the first spline shaft (305); the lower part of the fifth slide block (306) is fixedly connected with a fifth driving piece (307); the middle upper part of the tenth support frame (302) is rotatably connected with a second screw rod (3010); a fifth bevel gear (309) is fixedly connected to the lower part of the second screw rod (3010); the middle upper part of the second screw rod (3010) is connected with a sixth sliding block (3011) in a transmission way; a seventh linkage block (3012) is fixedly connected to the lower part of the sixth sliding block (3011); a seventh sliding block (3013) is fixedly connected to the right side of the upper surface of the seventh linkage block (3012); an eighth linkage block (3015) is fixedly connected to the lower surface of the seventh linkage block (3012); the upper part of the seventh sliding block (3013) is connected with a fifth limiting rod (3014) in a sliding way; the lower part of the eighth linkage block (3015) is connected with a sixth limiting rod (3016) in a sliding manner; the middle part of the lower surface of the eighth linkage block (3015) is fixedly connected with a second spring (3017); a first sanding block (3018) is fixedly connected to the lower part of the sixth limiting rod (3016); the lower part of the second spring (3017) is fixedly connected with a first sanding block (3018); the eighth linkage block (3015), the sixth limiting rod (3016), the second spring (3017) and the first polishing block (3018) are arranged in five groups at equal intervals.

7. A magnetic field-based RFID reader antenna contact repair arrangement as claimed in claim 6, wherein: the lower surface of the first sanding block (3018) is a rough surface.

8. A magnetic field-based RFID reader antenna contact repair arrangement as claimed in claim 7, wherein: the welding assembly comprises a fourth limiting block (501), a sixth driving piece (502), a first baffle (503), a seventh driving piece (504), a tenth linkage block (505), a first push rod (506) and a first laser welding head (507); a fourth limiting block (501) is fixedly connected to the front part of the sixth supporting frame (7); a group of sixth driving pieces (502) are fixedly connected to the left side and the right side of the upper surface of the fourth limiting block (501); two groups of seventh driving pieces (504) are fixedly connected to the upper surface of the fourth limiting block (501); the rear parts of the two groups of sixth driving pieces (502) are fixedly connected with first baffle plates (503); tenth linkage blocks (505) are fixedly connected to the upper parts of the two groups of seventh driving pieces (504); the lower surface of the tenth linkage block (505) is fixedly connected with five groups of first push rods (506); five groups of first laser welding heads (507) are fixedly connected to the middle lower parts of the five groups of first push rods (506) respectively.

9. A magnetic field-based RFID reader antenna contact repair arrangement as claimed in claim 8, wherein: five groups of through holes are arranged in the first baffle (503).

10. A magnetic field-based RFID reader antenna contact repair arrangement as claimed in claim 9, wherein: the cleaning assembly is positioned above the grinding assembly and comprises a first linkage frame (401), a third limiting block (402), a first air nozzle (403), a first storage box (404), a ninth linkage block (405), a first driving piece (406), a first brush (407) and a first magnet (408); a group of first linkage frames (401) are fixedly connected to the left side and the right side of the seventh linkage block (3012); a third limiting block (402) is fixedly connected to the front of the lower parts of the two groups of first linkage frames (401); a first storage box (404) is fixedly connected to the rear of the lower parts of the two groups of first linkage frames (401); a plurality of groups of first air nozzles (403) are fixedly connected inside the third limiting block (402); a group of ninth linkage blocks (405) are fixedly connected to the front side and the rear side of the upper surface of the first storage box (404); a first magnet (408) is fixedly connected inside the first containing box (404); the front parts of the two groups of ninth linkage blocks (405) are fixedly connected with a group of first driving pieces (406); the lower parts of the two groups of first driving parts (406) are fixedly connected with first brushes (407).

Technical Field

The invention relates to the field of RFID readers, in particular to a magnetic field-based RFID reader antenna contact repairing device.

Background

Radio Frequency Identification (RFID) is an abbreviation for Radio Frequency Identification. The principle is that non-contact data communication is carried out between the reader and the tag, so that the aim of identifying the target is fulfilled. The application of RFID is very wide, and typical applications include animal wafers, automobile wafer burglar alarms, access control, parking lot control, production line automation and material management.

One of the RFID reader antennas is in a square shape, a silver-nickel contact is arranged in the middle of the square and used for electric coupling, and oxidation reaction can occur in the using process, so that the property of the upper layer of the silver-nickel contact is changed;

when present device restores such contact, polish contact upper portion earlier, then with the new contact welding in the contact top after polishing, and present device can only restore the contact on the antenna module one by one, and is inefficient, simultaneously, because there is the deviation in the position of contact on the antenna module, leads to the old contact of new contact skew of welded for follow-up needs the manual work to demolish the contact of skew, then carries out weldment work once more, increases work step, reduce efficiency.

Therefore, it is necessary to develop a magnetic field-based RFID reader antenna contact repairing apparatus to solve the above problems.

Disclosure of Invention

In order to overcome the defects that when the existing device repairs the contacts, the contacts on the antenna module can only be repaired one by one, the efficiency is low, meanwhile, because the positions of the contacts on the antenna module are deviated, new welded contacts deviate from old contacts, the deviated contacts need to be manually dismantled subsequently, then welding work is carried out again, the working steps are increased, and the efficiency is reduced, the technical problem of the invention is that: the existing devices can only repair the contacts on the antenna module one by one.

The technical implementation scheme of the invention is as follows: a magnetic field-based RFID reader antenna contact repairing device comprises a first bottom plate, a first supporting frame, a second supporting frame, a third supporting frame, a fourth supporting frame, a fifth supporting frame, a sixth supporting frame, a positioning assembly, a polishing assembly and a welding assembly; a first supporting frame is fixedly connected in front of the lower surface of the first bottom plate; a second supporting frame is fixedly connected to the rear part of the lower surface of the first bottom plate; a third supporting frame is fixedly connected to the front and the right of the upper surface of the first bottom plate; a fourth supporting frame is fixedly connected to the front left side of the upper surface of the first bottom plate; a fifth supporting frame is fixedly connected to the left side of the upper surface of the first bottom plate; a sixth supporting frame is fixedly connected to the rear part of the upper surface of the first bottom plate; the upper surface of the middle part of the first bottom plate is fixedly connected with a positioning component; a polishing component is fixedly connected to the middle right side of the upper surface of the first bottom plate; the rear part of the third support frame is fixedly connected with a positioning component; the rear part of the fourth supporting frame is fixedly connected with a positioning component; the middle upper part of the fifth supporting frame is fixedly connected with a polishing component; the front part of the sixth supporting frame is fixedly connected with a welding assembly; the positioning component is in transmission connection with the polishing component.

More preferably, the positioning assembly comprises a seventh support frame, an eighth support frame, a second driving piece, a first transmission rod, a first transmission wheel, a first bevel gear, a second bevel gear, a third driving piece, a third bevel gear, a first screw rod, a first sliding block, a second sliding block, a first limiting rod, a second limiting rod, a first spring, a first linkage block, a first limiting block, a second linkage block, a second limiting block, a receiving mechanism and an adjusting mechanism; a seventh supporting frame is fixedly connected to the right side of the upper surface of the first bottom plate; an eighth supporting frame is fixedly connected to the left side of the upper surface of the first bottom plate; a second limiting rod is fixedly connected to the front of the upper surface of the fourth supporting frame; a first spring is fixedly connected to the front part of the upper surface of the fourth supporting frame; a second driving piece is fixedly connected to the rear end face of the seventh supporting frame; a third driving piece is fixedly connected to the middle rear part of the seventh supporting frame; the front part of the seventh supporting frame is rotatably connected with a first screw rod; the output end of the second driving piece is fixedly connected with a first driving rod; the outer surface of the first transmission rod is rotatably connected with a seventh supporting frame; a first driving wheel is fixedly connected to the middle part of the first driving rod; the front part of the first transmission rod is fixedly connected with a first bevel gear; the first driving wheel is in transmission connection with the polishing assembly through a belt; a second bevel gear is fixedly connected to the left part of the third driving piece; a third bevel gear is fixedly connected to the rear part of the first screw rod; the front part of the first screw rod is in transmission connection with a first sliding block; the upper part of the first sliding block is fixedly connected with a second sliding block; the upper part of the second sliding block is fixedly connected with a bearing mechanism; the left part of the second sliding block is connected with a first limiting rod in a sliding manner; a second linkage block is fixedly connected to the left part of the second sliding block; the outer surface of the first limiting rod is fixedly connected with an eighth supporting frame; the outer surface of the second limiting rod is connected with a first linkage block in a sliding manner; the first spring is fixedly connected with the first linkage block; a first limiting block is fixedly connected to the left part of the first linkage block; the lower surface of the first linkage block is fixedly connected with an adjusting mechanism; five groups of the bearing mechanism and the adjusting mechanism are arranged at equal intervals.

More preferably, the second limiting rod, the first spring, the first limiting block, the second linkage block and the second limiting block are symmetrically arranged in two groups by using the central line of the first linkage block.

More preferably, the receiving mechanism comprises a third linkage block, a third limiting rod, a third sliding block, a fourth linkage block, a fourth limiting rod, a fourth sliding block, a first receiving block, a fourth driving piece and a first sucker; a third linkage block is fixedly connected to the upper surface of the second sliding block; a third limiting rod is fixedly connected to the upper part of the third linkage block; a group of fourth driving parts is fixedly connected to the front part and the rear part of the third linkage block; the middle part of the third limiting rod is connected with a third sliding block in a sliding manner; a fourth linkage block is fixedly connected to the upper part of the third sliding block; a fourth limiting rod is fixedly connected to the upper part of the fourth linkage block; the middle part of the fourth limiting rod is connected with a fourth sliding block in a sliding manner; the upper part of the fourth sliding block is fixedly connected with a first bearing block; two groups of first suckers are fixedly connected to the upper parts of the two groups of fourth driving parts respectively.

More preferably, the adjusting mechanism comprises a fifth linkage block, a sixth linkage block and a first electromagnetic force part; the lower surface of the first linkage block is fixedly connected with a fifth linkage block; the lower surface of the fifth linkage block is fixedly connected with four groups of sixth linkage blocks; four groups of first electromagnetic force components are fixedly connected to the lower parts of the four groups of sixth linkage blocks respectively.

More preferably, the polishing assembly comprises a ninth support frame, a tenth support frame, a first loop bar, a second transmission wheel, a first spline shaft, a fifth slider, a fifth driving piece, a fourth bevel gear, a fifth bevel gear, a second screw rod, a sixth slider, a seventh linkage block, a seventh slider, a fifth limiting rod, an eighth linkage block, a sixth limiting rod, a second spring and a first polishing block; a tenth supporting frame is fixedly connected to the right middle part of the upper surface of the first bottom plate; a ninth supporting frame is fixedly connected to the rear right of the upper surface of the first bottom plate; a fifth limiting rod is fixedly connected to the upper part of the fifth supporting frame; the upper part of the ninth supporting frame is rotatably connected with a first loop bar; a fifth driving piece is fixedly connected to the middle upper part of the ninth supporting frame; a second driving wheel is fixedly connected to the rear part of the first sleeve rod; the front part of the first sleeve rod is connected with a first spline shaft in a sliding way; the second transmission wheel is in transmission connection with the first transmission wheel through a belt; the middle part of the first spline shaft is rotationally connected with a fifth sliding block; a fourth bevel gear is fixedly connected to the front part of the first spline shaft; the lower part of the fifth sliding block is fixedly connected with a fifth driving piece; the middle upper part of the tenth supporting frame is rotatably connected with a second screw rod; a fifth bevel gear is fixedly connected to the lower part of the second screw rod; the middle upper part of the second screw rod is in transmission connection with a sixth sliding block; a seventh linkage block is fixedly connected to the lower part of the sixth sliding block; a seventh sliding block is fixedly connected to the right side of the upper surface of the seventh linkage block; the lower surface of the seventh linkage block is fixedly connected with an eighth linkage block; the upper part of the seventh sliding block is connected with a fifth limiting rod in a sliding manner; the lower part of the eighth linkage block is connected with a sixth limiting rod in a sliding manner; a second spring is fixedly connected to the middle of the lower surface of the eighth linkage block; the lower part of the sixth limiting rod is fixedly connected with a first sanding block; the lower part of the second spring is fixedly connected with a first polishing block; the eighth linkage block, the sixth limiting rod, the second spring and the first grinding block are arranged in five groups at equal intervals.

More preferably, the lower surface of the first sanding block is rough.

More preferably, the polishing device further comprises a cleaning assembly, the cleaning assembly is positioned above the polishing assembly, and the cleaning assembly comprises a first linkage frame, a third limiting block, a first air nozzle, a first storage box, a ninth linkage block, a first driving piece, a first brush and a first magnet; a group of first linkage frames is fixedly connected to the left side and the right side of the seventh linkage block; a third limiting block is fixedly connected in front of the lower parts of the two groups of first linkage frames; a first storage box is fixedly connected to the rear of the lower parts of the two groups of first linkage frames; a plurality of groups of first air nozzles are fixedly connected inside the third limiting block; a group of ninth linkage blocks is fixedly connected to the front side and the rear side of the upper surface of the first storage box; a first magnet is fixedly connected inside the first storage box; the front parts of the two groups of ninth linkage blocks are fixedly connected with a group of first driving pieces; the lower parts of the two groups of first driving parts are fixedly connected with first brushes.

More preferably, the welding assembly comprises a fourth limiting block, a sixth driving piece, a first baffle, a seventh driving piece, a tenth linkage block, a first push rod and a first laser welding head; a fourth limiting block is fixedly connected to the front part of the sixth supporting frame; a group of sixth driving pieces are fixedly connected to the left side and the right side of the upper surface of the fourth limiting block; two groups of seventh driving pieces are fixedly connected to the upper surface of the fourth limiting block; the rear parts of the two groups of sixth driving pieces are fixedly connected with a first baffle; the upper parts of the two groups of seventh driving pieces are fixedly connected with tenth linkage blocks; the lower surface of the tenth linkage block is fixedly connected with five groups of first push rods; five groups of first laser welding heads are fixedly connected to the middle lower parts of the five groups of first push rods respectively.

More preferably, five groups of through holes are formed in the first baffle.

Compared with the prior art, the invention has the following advantages:

the method aims to solve the problems that when the existing device repairs the contacts, the contacts on the antenna module can only be repaired one by one, the efficiency is low, meanwhile, due to the fact that the positions of the contacts on the antenna module are deviated, new welded contacts deviate from old contacts, the deviated contacts need to be dismantled manually in the follow-up process, then welding work is carried out again, working steps are increased, and the efficiency is reduced;

designing a positioning assembly, a polishing assembly, a cleaning assembly and a welding assembly; in the process, the positioning assembly of the third support frame and the fourth support frame simultaneously positions the five antenna modules through a magnetic field to enable the contacts on the five antenna modules to be positioned on the same straight line and arranged at equal intervals, then the positioning assembly drives the five antenna modules to do small-amplitude linear reciprocating motion to polish the five contacts by matching with the polishing assembly on the fifth support frame, and the polishing assembly can polish the five contacts with different losses to the same height, metal powder can be generated in the polishing process, if welding operation is directly performed, unstable connection can be caused, even the conductive effect is influenced, the cleaning assembly limits the five antenna modules at the same time, the polishing assembly performs polishing operation again, the phenomenon that the antenna modules tilt and fall is avoided, metal powder generated by polishing is removed and collected through wind power, at the moment, part of the metal powder on the back of the contacts cannot be removed, then the cleaning assembly is shifted backwards and removed through the wind power, meanwhile, magnets are arranged in a storage box transversely arranged, the collected metal powder can be fixed, the situation that the metal powder is blown out through the wind power is avoided, then the positioning assembly drives the five antenna modules to be transported to the lower part of the welding assembly, and the welding assembly on a sixth supporting frame respectively welds five new silver-nickel contacts above five old contacts;

when the device is used, the contacts on the five antenna modules are automatically positioned on the same straight line and arranged at equal intervals through the magnetic field, so that the five contacts can be repaired at the same time, the efficiency is improved, the five contacts with different losses can be automatically polished to the same height at the same time, the welding operation is facilitated, the powder generated by polishing is automatically removed and collected, the collected metal powder is further fixed through magnetic force, the metal powder is prevented from being blown out by wind power, and the metal powder remained on the back of the contacts is automatically removed and collected.

Drawings

FIG. 1 shows a first constructional schematic of the present application;

FIG. 2 shows a second construction schematic of the present application;

FIG. 3 shows a schematic view of the construction of the positioning assembly of the present application;

FIG. 4 shows a rear view of a portion of the positioning assembly of the present application;

FIG. 5 shows a schematic view of the construction of the uptake mechanism of the present application;

FIG. 6 shows a schematic view of the construction of the adjustment mechanism of the present application;

FIG. 7 shows a schematic of the construction of the sanding assembly of the present application;

FIG. 8 shows a right side view of a portion of the construction of the sanding assembly of the present application;

FIG. 9 shows a schematic view of the construction of the cleaning assembly of the present application;

FIG. 10 is a schematic view showing a configuration of a part of the structure of the cleaning assembly of the present application;

FIG. 11 shows a schematic view of the construction of a welded assembly according to the present application.

Wherein the figures include the following reference numerals: 1. a first bottom plate, 2, a first support frame, 3, a second support frame, 4, a third support frame, 5, a fourth support frame, 6, a fifth support frame, 7, a sixth support frame, 201, a seventh support frame, 202, an eighth support frame, 203, a second driving member, 204, a first transmission rod, 205, a first driving wheel, 206, a first bevel gear, 207, a second bevel gear, 208, a third driving member, 209, a third bevel gear, 2010, a first screw rod, 2011, a first slider, 2012, a second slider, 2013, a first limit rod, 2014, a second limit rod, 2015, a first spring, 2016, a first linkage block, 2017, a first limit block, 2018, a second linkage block, 2019, a second limit block, 202001, a third linkage block, 202002, a third limit rod, 202003, a third slider, 202004, a fourth linkage block, 202005, a fourth limit rod, 202006, a fourth slider, 202007, a first bearing block, 202008, a fourth driving member, 202009, a first suction cup, 202101, a fifth linkage block, 202102, a sixth linkage block, 202103, a first electromagnetic force member, 301, a ninth support frame, 302, a tenth support frame, 303, a first sleeve rod, 304, a second transmission wheel, 305, a first spline shaft, 306, a fifth slider, 307, a fifth driving member, 308, a fourth bevel gear, 309, a fifth bevel gear, 3010, a second lead screw, 3011, a sixth slider, 3012, a seventh linkage block, 3013, a seventh slider, 3014, a fifth limiting rod, 3015, an eighth linkage block, 3016, a sixth limiting rod, 3017, a second spring, 3018, a first polishing block, 401, a first linkage frame, 402, a third limiting block, 403, a first air jet head, 404, a first storage box, 405, a ninth linkage block, 406, a first driving member, 407, a first magnet, 408, a first magnet, a sixth driving member, 501, a fourth driving member, a brush, 502, a fourth driving member, a second magnetic brush, 501, a second magnetic head, a third limiting block, 3015, a fifth limiting block, 3015, a fifth limiting rod, a fourth spring, a sixth ball, a fourth ball, a sixth ball, a fourth, A first baffle plate 504, a seventh driving member 505, a tenth linkage block 506, a first push rod 507, and a first laser welding head.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

A magnetic field-based RFID reader antenna contact repairing device is shown in figures 1-2 and comprises a first bottom plate 1, a first support frame 2, a second support frame 3, a third support frame 4, a fourth support frame 5, a fifth support frame 6, a sixth support frame 7, a positioning assembly, a polishing assembly and a welding assembly; a first supporting frame 2 is fixedly connected in front of the lower surface of the first bottom plate 1; a second supporting frame 3 is fixedly connected to the rear part of the lower surface of the first bottom plate 1; a third supporting frame 4 is fixedly connected to the front right side of the upper surface of the first bottom plate 1; a fourth supporting frame 5 is fixedly connected to the front left side of the upper surface of the first bottom plate 1; a fifth supporting frame 6 is fixedly connected to the left side of the upper surface of the first bottom plate 1; a sixth supporting frame 7 is fixedly connected to the rear part of the upper surface of the first bottom plate 1; the upper surface of the middle part of the first bottom plate 1 is fixedly connected with a positioning component; a polishing component is fixedly connected to the middle right side of the upper surface of the first bottom plate 1; the rear part of the third supporting frame 4 is fixedly connected with a positioning component; the rear part of the fourth supporting frame 5 is fixedly connected with a positioning component; the middle upper part of the fifth supporting frame 6 is fixedly connected with a polishing component; the front part of the sixth supporting frame 7 is fixedly connected with a welding component; the positioning component is in transmission connection with the polishing component.

In preparation for working, a first support frame 2 and a second support frame 3 are fixed on a workbench through bolts, a power supply is switched on, an operation controller control device starts to operate, five RFID reader antenna modules to be processed are placed into a positioning assembly on a first base plate 1, antenna contacts face upwards, five new silver-nickel contacts are placed into a welding assembly, the plane parts of the new silver-nickel contacts face downwards, then the positioning assembly drives the five antenna modules to move to the lower part of a polishing assembly, in the process, the positioning assembly of a third support frame 4 and a fourth support frame 5 simultaneously positions the five antenna modules through a magnetic field, the contacts on the five antenna modules are positioned on the same straight line and are arranged at equal intervals, then the positioning assembly drives the five antenna modules to do small-amplitude straight line reciprocating motion, the five contacts are polished by matching with the polishing assembly on a fifth support frame 6, the polishing assembly can polish the five contacts with different losses to the same height, metal powder is generated in the polishing process, if the welding operation is directly carried out, unstable connection can be caused, even the conductive effect is influenced, the cleaning assembly limits the five antenna modules at the same time, the polishing assembly carries out polishing operation again, the phenomenon that the antenna modules tilt and fall off is avoided, meanwhile, the metal powder generated by polishing is removed and collected through wind power, part of the metal powder positioned at the back of the contact cannot be removed at the moment, then the cleaning assembly is pulled backwards to remove the metal powder through the wind power, meanwhile, magnets are transversely arranged in a storage box to fix the collected metal powder and prevent the metal powder from being blown out through the wind power, then the positioning assembly drives the five antenna modules to be transported to the lower part of the welding assembly, the welding assembly on a sixth supporting frame 7 respectively welds five new silver-nickel contacts above five old contacts, when the novel welding device is used, the contacts on the five antenna modules are automatically positioned on the same straight line and arranged at equal intervals through a magnetic field, so that repair operation is carried out to five contacts simultaneously, raise the efficiency, still realized automatically simultaneously with the contact polishing of five different losses to same height, the welding operation of being convenient for, the powder that produces will polish simultaneously is got rid of and is collected automatically to further fix the metal powder of collecting through magnetic force, prevent that wind-force from blowing off it, the metal powder that will remain at the contact back simultaneously is got rid of and is collected automatically.

As shown in fig. 3-4, the positioning assembly includes a seventh supporting frame 201, an eighth supporting frame 202, a second driving member 203, a first driving rod 204, a first driving wheel 205, a first bevel gear 206, a second bevel gear 207, a third driving member 208, a third bevel gear 209, a first screw 2010, a first slider 2011, a second slider 2012, a first limiting rod 2013, a second limiting rod 2014, a first spring 2015, a first linkage 2016, a first limiting block 2017, a second linkage 2018, a second limiting block 2019, a receiving mechanism and an adjusting mechanism; a seventh supporting frame 201 is fixedly connected to the right side of the upper surface of the first bottom plate 1; an eighth supporting frame 202 is fixedly connected to the left of the upper surface of the first bottom plate 1; a second limiting rod 2014 is fixedly connected to the front part of the upper surface of the fourth support frame 5; a first spring 2015 is fixedly connected to the front part of the upper surface of the fourth support frame 5; a second driving piece 203 is fixedly connected to the rear end surface of the seventh supporting frame 201; a third driving piece 208 is fixedly connected to the middle rear part of the seventh supporting frame 201; the front part of the seventh supporting frame 201 is rotatably connected with a first screw 2010; the output end of the second driving piece 203 is fixedly connected with a first transmission rod 204; the outer surface of the first transmission rod 204 is rotatably connected with the seventh supporting frame 201; a first driving wheel 205 is fixedly connected to the middle part of the first driving rod 204; a first bevel gear 206 is fixedly connected to the front part of the first transmission rod 204; the first driving wheel 205 is connected with the grinding assembly through belt transmission; a second bevel gear 207 is fixedly connected to the left part of the third driving member 208; a third bevel gear 209 is fixedly connected to the rear part of the first screw 2010; the front part of the first screw 2010 is in transmission connection with a first slide block 2011; a second slide block 2012 is fixedly connected to the upper part of the first slide block 2011; the upper part of the second slider 2012 is fixedly connected with a bearing mechanism; the left part of the second slider 2012 is connected with a first limit rod 2013 in a sliding way; a second linkage block 2018 is fixedly connected to the left part of the second sliding block 2012; the outer surface of the first limiting rod 2013 is fixedly connected with the eighth support frame 202; the outer surface of the second limiting rod 2014 is connected with a first linkage block 2016 in a sliding mode; the first spring 2015 is fixedly connected with the first linkage block 2016; a first limiting block 2017 is fixedly connected to the left part of the first linkage block 2016; an adjusting mechanism is fixedly connected to the lower surface of the first linkage block 2016; five groups of the bearing mechanism and the adjusting mechanism are arranged at equal intervals.

Firstly, five RFID reader antenna modules to be processed are respectively put into five groups of receiving mechanisms, then a second driving piece 203 on a seventh supporting frame 201 drives a first transmission rod 204 to drive a first bevel gear 206 to rotate, the first transmission rod 204 drives a first transmission wheel 205 to rotate, then a third driving piece 208 drives a second bevel gear 207 to move, so that the second bevel gear 207 is simultaneously meshed with the first bevel gear 206 and a third bevel gear 209, then the first bevel gear 206 drives the second bevel gear 207 to drive the third bevel gear 209 to rotate, the third bevel gear 209 drives a first lead screw 2010 to rotate, the first lead screw 2010 drives a first slider 2011 to move backwards, the first slider 2011 drives a second slider 2012 to move, so that the second slider 2012 slides backwards on a first limiting rod 2013 connected with the eighth supporting frame 202, the second slider 2012 drives five groups of receiving mechanisms to move, the five groups of receiving mechanisms respectively drive five groups of antenna modules to move, meanwhile, the second slider 2012 drives the second linkage block 2018 to drive the second limiting block 2019 to move, when the second limiting block 2019 contacts with the first limiting block 2017, the second limiting block 2019 continues to move to push the first limiting block 2017 to slide downwards on the second limiting rod 2014, meanwhile, the first limiting block 2017 compresses the first spring 2015, the first limiting block 2017 drives the first linkage block 2016 to move downwards, the first linkage block 2016 drives the five groups of adjusting mechanisms to move downwards, at the moment, the five groups of antenna modules just move to the lower part of the five groups of adjusting mechanisms, so that the five groups of adjusting mechanisms are respectively sleeved outside the five contacts, then the five groups of receiving mechanisms and the five groups of adjusting mechanisms work in a matching way, so that the contacts on the five antenna modules are arranged on the same straight line at equal intervals, then the second slider 2012 continues to move, so that the second limiting block 2019 stops contacting with the first limiting block 2017, and then the first spring 2015 drives the first linkage block 2016 to move back to the original position, when the antenna is used, the contacts on the five antenna modules are automatically positioned on the same straight line and arranged at equal intervals through the magnetic field, so that the five contacts can be repaired at the same time, and the efficiency is improved.

Two groups of second limiting rods 2014, two groups of first springs 2015, two groups of first limiting blocks 2017, two groups of second linkage blocks 2018 and two groups of second limiting blocks 2019 are symmetrically arranged on the center line of the first linkage blocks 2016.

Can cooperate each other and drive first linkage block 2016 downstream, improve stability.

As shown in fig. 5, the receiving mechanism includes a third link block 202001, a third stopper rod 202002, a third sliding block 202003, a fourth link block 202004, a fourth stopper rod 202005, a fourth sliding block 202006, a first receiving block 202007, a fourth driving block 202008, and a first suction disc 202009; a third link block 202001 is fixedly connected to the upper surface of the second slide block 2012; the upper part of the third linkage block 202001 is fixedly connected with a third limiting rod 202002; a group of fourth driving pieces 202008 are fixedly connected to the front and the rear of the third link block 202001; the middle part of the third limiting rod 202002 is connected with a third slide block 202003 in a sliding way; a fourth linkage block 202004 is fixedly connected to the upper part of the third slide block 202003; a fourth limit rod 202005 is fixedly connected to the upper part of the fourth linkage block 202004; the middle part of the fourth limiting rod 202005 is connected with a fourth sliding block 202006 in a sliding way; a first bearing block 202007 is fixedly connected to the upper part of the fourth sliding block 202006; two groups of first suction discs 202009 are respectively fixedly connected to the upper parts of the two groups of fourth driving parts 202008.

When the adjusting mechanism is located outside the electric contact, the adjusting mechanism adjusts the position of the contact, so that the antenna module drives the first receiving block 202007 to drive the fourth slider 202006 to move, the fourth slider 202006 drives the fourth limiting rod 202005 to drive the fourth linkage block 202004 to move, the fourth linkage block 202004 drives the third slider 202003 to move, so that the third slider 202003 slides on the third limiting rod 202002, and the fourth slider 202006 slides on the fourth limiting rod 202005, after the position adjustment is completed, the two groups of fourth driving pieces 202008 on the third linkage block 202001 respectively drive the two groups of first suction discs 202009 to move upwards, so that the two groups of first suction discs 202009 simultaneously fix the first receiving block 007 202, so that the position of the antenna module is kept unchanged, when the adjusting mechanism is used, the position of the contact is adjusted, and the antenna module is fixed.

As shown in fig. 6, the adjusting mechanism includes a fifth linkage block 202101, a sixth linkage block 202102, and a first electromagnetic force member 202103; a fifth linkage block 202101 is fixedly connected to the lower surface of the first linkage block 2016; the lower surface of the fifth linkage block 202101 is fixedly connected with four groups of sixth linkage blocks 202102; four sets of first electromagnetic force elements 202103 are respectively fixed to the lower portions of the four sets of sixth linkage blocks 202102.

When the antenna module moves to the position below the fifth linkage block 202101, the first linkage block 2016 drives the fifth linkage block 202101 to drive the fourth group of sixth linkage blocks 202102 to move downward, the fourth group of sixth linkage blocks 202102 respectively drives the fourth group of first electromagnetic force elements 202103 to move downward, so that the fourth group of first electromagnetic force elements 202103 move to the outer side of the contacts, then the fourth group of first electromagnetic force elements 202103 respectively generate magnetic force, the magnetic force drives the contacts made of silver-nickel materials to move, when the inductor on the fifth linkage block 202101 senses that the contacts are located right below the fifth linkage block 202101, the fourth group of first electromagnetic force elements 202103 stop generating magnetic force, then the bearing mechanism fixes the antenna module, and when the antenna module is used, the position of the contacts is adjusted by matching with the adjusting mechanism.

As shown in fig. 7-8, the polishing assembly includes a ninth support frame 301, a tenth support frame 302, a first loop bar 303, a second transmission wheel 304, a first spline shaft 305, a fifth slider 306, a fifth driving element 307, a fourth bevel gear 308, a fifth bevel gear 309, a second screw rod 3010, a sixth slider 3011, a seventh link block 3012, a seventh slider 3013, a fifth limit rod 3014, an eighth link block 3015, a sixth limit rod 3016, a second spring 3017 and a first polishing block 3018; a tenth supporting frame 302 is fixedly connected to the right middle part of the upper surface of the first bottom plate 1; a ninth supporting frame 301 is fixedly connected to the rear right of the upper surface of the first bottom plate 1; a fifth limiting rod 3014 is fixedly connected to the upper part of the fifth support frame 6; the upper part of the ninth supporting frame 301 is rotatably connected with a first sleeve rod 303; a fifth driving member 307 is fixedly connected to the middle upper part of the ninth supporting frame 301; a second driving wheel 304 is fixedly connected to the rear part of the first sleeve rod 303; a first spline shaft 305 is connected to the front part of the first loop bar 303 in a sliding manner; the second transmission wheel 304 is connected with the first transmission wheel 205 through belt transmission; the middle part of the first spline shaft 305 is rotationally connected with a fifth sliding block 306; a fourth bevel gear 308 is fixedly connected to the front part of the first spline shaft 305; the lower part of the fifth slide block 306 is fixedly connected with a fifth driving piece 307; the middle upper part of the tenth supporting frame 302 is rotatably connected with a second screw rod 3010; the lower part of the second screw rod 3010 is fixedly connected with a fifth bevel gear 309; the middle upper part of the second lead screw 3010 is connected with a sixth slide block 3011 in a transmission way; a seventh linkage block 3012 is fixedly connected to the lower part of the sixth slider 3011; a seventh sliding block 3013 is fixedly connected to the right side of the upper surface of the seventh linkage block 3012; an eighth linkage block 3015 is fixedly connected to the lower surface of the seventh linkage block 3012; the upper part of the seventh sliding block 3013 is connected with a fifth limiting rod 3014 in a sliding manner; the lower part of the eighth linkage block 3015 is connected with a sixth limiting rod 3016 in a sliding manner; a second spring 3017 is fixedly connected to the middle of the lower surface of the eighth linkage block 3015; a first sanding block 3018 is fixedly connected to the lower portion of the sixth limiting rod 3016; the lower part of the second spring 3017 is fixedly connected with a first polishing block 3018; the eighth linkage block 3015, the sixth limiting rod 3016, the second spring 3017 and the first polishing block 3018 are arranged in five groups at equal intervals.

When the five sets of contacts respectively move to the positions below the five sets of first polishing blocks 3018, the first driving wheel 205 drives the second driving wheel 304 to rotate through a belt, the second driving wheel 304 drives the first sleeve 303 on the ninth supporting frame 301 to rotate, the first sleeve 303 drives the first spline shaft 305 to drive the fourth bevel gear 308 to rotate, then the fifth driving member 307 drives the fifth slider 306 to drive the first spline shaft 305 to move, so that the first spline shaft 305 drives the fourth bevel gear 308 to engage with the fifth bevel gear 309, then the fourth bevel gear 308 drives the fifth bevel gear 309 to drive the second lead screw 3010 to rotate, the second lead screw 3010 rotates on the tenth supporting frame 302, the second lead screw 3010 drives the sixth slider 3011 to drive the seventh linkage block 3012 to move, the seventh linkage block 3012 drives the seventh slider 3013 to slide downwards on the fifth limiting rod 3014, so that the seventh linkage block 3012 drives the components associated with the seventh linkage block to move downwards, so that the five sets of first polishing blocks 3018 respectively contact with the five sets of contacts, at this time, five contacts respectively limit five groups of first polishing blocks 3018, so that five groups of first polishing blocks 3018 respectively drive five groups of sixth limiting rods 3016 to move upwards, five groups of sixth limiting rods 3016 respectively slide upwards in five groups of eighth linkage blocks 3015, at the same time, five groups of first polishing blocks 3018 respectively extrude five groups of second springs 3017, then the positioning component drives five groups of antenna modules to perform small-amplitude linear reciprocating motion, so that five groups of first polishing blocks 3018 respectively polish five contacts, under the action of five groups of second springs 3017, the first polishing blocks 3018 always apply downward pressure on the contacts, and the five groups of second springs 3017 have the same structure, so that after polishing is completed, five groups of first polishing blocks 3018 are located at the same height, that the heights of the five polished contacts are equal, then the seventh linkage block 3012 moves upwards, the fourth bevel gear 308 stops meshing with the fifth bevel gear 309, when in use, five contacts with different losses are polished to the same height, thereby facilitating the welding operation.

The lower surface of the first sanding block 3018 is rough.

The contacts on the antenna module may be ground.

As shown in fig. 9-10, the polishing device further comprises a cleaning assembly, the cleaning assembly is located above the polishing assembly, and the cleaning assembly comprises a first linkage frame 401, a third limiting block 402, a first air nozzle 403, a first storage box 404, a ninth linkage block 405, a first driving member 406, a first brush 407, and a first magnet 408; a group of first linkage frames 401 are fixedly connected to the left side and the right side of the seventh linkage block 3012; a third limiting block 402 is fixedly connected to the front of the lower parts of the two groups of first linkage frames 401; a first storage box 404 is fixedly connected to the rear of the lower parts of the two groups of first linkage frames 401; a plurality of groups of first air nozzles 403 are fixedly connected inside the third limiting block 402; a group of ninth linkage blocks 405 are fixedly connected to the front side and the rear side of the upper surface of the first storage box 404; a first magnet 408 is fixedly connected inside the first storage box 404; the front parts of the two groups of ninth linkage blocks 405 are fixedly connected with a group of first driving pieces 406; the lower parts of the two sets of first driving members 406 are fixedly connected with first brushes 407.

In the polishing process, the seventh linkage block 3012 drives the two sets of first linkage frames 401 to move downwards, the two sets of first linkage frames 401 drive the third limiting block 402 and the first storage box 404 to move downwards, so that the third limiting block 402 and the first storage box 404 are both in contact with the upper surface of the antenna module, thereby limiting the antenna module, and avoiding the phenomenon that the antenna module tilts and falls off, meanwhile, the multiple sets of first air injection heads 403 start to convey air flow towards the first storage box 404, powder generated by polishing is blown into the first storage box 404, part of powder is remained at the back of a contact, when the contact moves to the lower part of the first brush 407, the two sets of first driving pieces 406 on the two sets of ninth linkage blocks 405 simultaneously drive the first brush 407 to move downwards, so that the first brush 407 is in contact with the antenna module, then the positioning assembly drives the antenna module to move away from the first brush 407, so that the first brush 407 pushes metal powder at the back of the contact to the upper surface of the antenna module, then the first air nozzle 403 continues to convey the air flow and blows the air flow into the first storage box 404, the first magnet 408 attracts and fixes the metal powder in the first storage box 404, the powder generated by polishing is automatically removed and collected during use, the collected metal powder is further fixed through magnetic force, and the metal powder is prevented from being blown out by wind power.

As shown in fig. 11, the welding assembly includes a fourth stopper 501, a sixth driving member 502, a first baffle 503, a seventh driving member 504, a tenth link block 505, a first push rod 506 and a first laser welding head 507; a fourth limiting block 501 is fixedly connected to the front part of the sixth supporting frame 7; a group of sixth driving members 502 are fixedly connected to the left side and the right side of the upper surface of the fourth limiting block 501; two groups of seventh driving members 504 are fixedly connected to the upper surface of the fourth limiting block 501; the rear parts of the two groups of sixth driving pieces 502 are fixedly connected with first baffle plates 503; a tenth linkage block 505 is fixedly connected to the upper parts of the two groups of seventh driving pieces 504; the lower surface of the tenth linkage block 505 is fixedly connected with five groups of first push rods 506; five groups of first laser welding heads 507 are respectively fixedly connected to the middle lower parts of the five groups of first push rods 506.

Firstly, five new silver-nickel contact planes are downwards placed into five through holes of a fourth limiting block 501, the first baffle 503 limits the new silver-nickel contact planes, after the polishing is finished, a positioning assembly transports five antenna modules to the lower part of the fourth limiting block 501, at the moment, the five polished contacts are respectively aligned with the five new silver-nickel contacts, then two groups of seventh driving pieces 504 simultaneously drive a tenth linkage block 505 to move downwards, the tenth linkage block 505 drives five groups of first push rods 506 to move downwards, the lower parts of the five groups of first push rods 506 are sticky, the five groups of first push rods 506 stick the five new silver-nickel contacts after moving downwards, then two groups of sixth driving pieces 502 simultaneously push the first baffle 503 to move, so that the first baffle stops limiting the five new silver-nickel contacts, then the five groups of first push rods 506 continue to move downwards, and the five new silver-nickel contacts are respectively pressed on the five polished contacts, and then five groups of first laser welding joints 507 start to work, five new silver-nickel contacts are respectively welded above the five polished contacts, and the five new silver-nickel contacts are automatically welded above the five polished contacts when in use.

Five groups of through holes are arranged inside the first baffle 503.

Five new silver-nickel contacts can be located.

The technical principle of the embodiment of the present invention is described above in conjunction with the specific embodiments. The description is only intended to explain the principles of embodiments of the invention and should not be taken in any way as limiting the scope of the embodiments of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive step, and these embodiments will fall within the scope of the present invention.