阅读说明：本技术 一种铁画制作用的多自由度的点焊设备 (Multi-degree-of-freedom spot welding equipment for iron picture manufacturing ) 是由 储铁艺 李庆 朱米娜 于 2021-07-12 设计创作，主要内容包括：本发明公开了一种铁画制作用的多自由度的点焊设备,涉及铁画制作的技术领域,包括工作台、点焊机构及辅助机构,其中,所述工作台水平设置,点焊机构固定设于工作台的上侧并用于实现对铁画的部件的焊接工作,点焊机构具体包括旋转板、固定块、升降杆、升降块、电极柱一、伸缩气缸一、电极柱二及伸缩气缸二,辅助机构可拆卸设于点焊机构的前侧并用于对铁画的部件的送入、压紧、切断及取走工作,辅助机构具体包括支撑板、安装板、定位块、基准片、引导条、切断件及下压件。综上,本发明中的铁画制作用的多自由度的点焊设备具有设计巧妙、结构合理、适用性好的特点,可以满足对铁画的部件的点焊要求,尤其适用于对铁画中的松针胚件的自动焊接工作。(The invention discloses multi-degree-of-freedom spot welding equipment for manufacturing iron paintings, which relates to the technical field of iron painting manufacturing and comprises a workbench, a spot welding mechanism and an auxiliary mechanism, wherein the workbench is horizontally arranged, the spot welding mechanism is fixedly arranged on the upper side of the workbench and used for realizing welding work of parts of the iron paintings, the spot welding mechanism specifically comprises a rotating plate, a fixed block, a lifting rod, a lifting block, a first electrode column, a first telescopic cylinder, a second electrode column and a second telescopic cylinder, the auxiliary mechanism is detachably arranged on the front side of the spot welding mechanism and used for feeding, compressing, cutting and taking away the parts of the iron paintings, and the auxiliary mechanism specifically comprises a supporting plate, a mounting plate, a positioning block, a reference plate, a guide strip, a cutting part and a pressing part. In conclusion, the multi-degree-of-freedom spot welding equipment for manufacturing the iron picture has the characteristics of ingenious design, reasonable structure and good applicability, can meet the requirements of spot welding on parts of the iron picture, and is particularly suitable for automatic welding work on pine needle blanks in the iron picture.)

1. The utility model provides a multi freedom's spot welding equipment for iron picture preparation which characterized in that: including workstation (10), spot welding mechanism (20) and complementary unit (30), wherein:

the workbench (10) is horizontally arranged;

the spot welding mechanism (20) is fixedly arranged on the upper side of the workbench (10) and used for achieving welding work of parts of iron pictures, and the spot welding mechanism (20) specifically comprises a rotating plate (201), a fixed block (207), a lifting rod (208), a lifting block (209), a first electrode column (212), a first telescopic cylinder (215), a second electrode column (219) and a second telescopic cylinder (222);

the auxiliary mechanism (30) is detachably arranged on the front side of the spot welding mechanism (20) and used for feeding, pressing, cutting and taking away iron picture components, and the auxiliary mechanism (30) specifically comprises a supporting plate (301), a mounting plate (303), a positioning block (304), a reference sheet (305), a guide strip (306), a cutting part (308) and a pressing part (309).

2. The multiple degree of freedom spot welding apparatus for iron picture manufacturing according to claim 1, characterized in that: the rotary plate (201) is a circular metal plate and is vertically arranged, a through rectangular groove (201a) is arranged in the middle of the lower portion of the rotary plate (201), a first clamp strip (202) and a second clamp strip (203) are arranged on the upper side and the lower side of the rotary plate (201) respectively, the end portion of the first clamp strip (202) is connected with the end portion of the second clamp strip (203) through a first threaded rod (204), two ends of the first threaded rod (204) are symmetrically connected with a first hand-screwing nut (205), two ends of the second clamp strip (203) are vertically fixed with a first downward supporting column (206), the lower end of the first supporting column (206) is vertically fixed on the upper side of the workbench (10), a fixed block (207) is arranged on the front side of the rotary plate (201) in the middle of the rotary plate in a leaning manner, a lifting rod (208) is vertically arranged and slidably connected onto the fixed block (207), and a lifting block (209) is connected to the upper end of the lifting rod (208) through a jackscrew, the front side of the lifting block (209) is vertically welded with a first guide pipe (210), the left side and the right side of the first guide pipe (210) are provided with a first guide groove (210a) along the axial direction of the first guide pipe, the inner side of the first guide pipe (210) is connected with a first telescopic rod (211) in a sliding manner, the first electrode column (212) is vertically connected with the front end of the first telescopic rod (211) downwards through a jackscrew, the rear end of the first telescopic rod (211) is vertically fixed with a second threaded rod (213), the second threaded rod (213) horizontally penetrates through the first guide grooves (210a) on the two sides, the two ends of the second threaded rod (213) are symmetrically connected with a second hand-screwed nut (214), the first telescopic cylinders (215) are symmetrically distributed in a left-right manner, the first telescopic cylinders (215) are vertically connected with the middle part of the rear side of the rotating plate (201), and the tail ends of piston rods of the first telescopic cylinders (215) are connected with a first connecting piece (216), be equipped with spacing groove (216a) of vertical orientation on connection piece (216), the perpendicular welding in front side of fixed block (207) has stand pipe two (217), the left and right sides of stand pipe two (217) is equipped with along its axial stand pipe two (217a), the inboard sliding connection of stand pipe two (217) has telescopic link two (218), electrode column two (219) are connected the front end with telescopic link two (218) through the jackscrew is vertical up, the rear end vertical fixation of telescopic link two (218) has threaded rod three (220), threaded rod three (220) level passes guide groove two (217a) on both sides, the perpendicular symmetrical connection in both ends of threaded rod three (220) has hand screw nut three (221), the both ends of threaded rod two (213) and threaded rod three (220) are all slided and are located in spacing groove (216a) on both sides, telescopic cylinder two (222) are vertical to be set up down and connect in the back of rotor plate (201) through cylinder stationary blade (223) placed in the middle And the tail end of a piston rod of the second telescopic cylinder (222) is connected with a second connecting piece (224), and the front end of the second connecting piece (224) penetrates through the rectangular groove (201a) and is connected with the lower end of the lifting rod (208).

3. The multiple degree of freedom spot welding apparatus for iron picture manufacturing according to claim 2, characterized in that: the utility model discloses a positioning device, including a support plate (301), a mounting plate (303), a locating block (304), a positioning block (304), a pressing groove (304c), a reference sheet (305), a pair of and symmetrical installation are arranged on the front side of the positioning block (304), the support plate (301) is a rectangular metal plate and is horizontally arranged, upward second support columns (302) are vertically fixed at four corners of the support plate (301), the mounting plate (303) is horizontally fixed at the top ends of the second support columns (302), the locating block (304) is installed on the upper side of the mounting plate (303) in the middle of the positioning block (304) before leaning on, four corners of the locating block (304) are all chamfered, a circular locating hole (304a) is arranged at the center of the locating block (304), an X-shaped locating groove (304b) is arranged on the upper side of the locating block (304), a pressing groove (304c) is uniformly arranged on the locating groove (304b), the reference sheet (305) is provided with a pair of and symmetrically installed at two chamfered corners on the front side of the locating block (304), a pair of and a pair of guide strip (306) symmetrically distributed at two chamfered corners of the rear side of the locating block (304), the upside of guide strip (306) is equipped with guide slot (306a) and just to constant head tank (304b), mount pad (310) of U type are installed to the downside symmetry of mounting panel (304), install winding barrel (311) through the round pin axle on mount pad (310), the winding has thin iron wire (312) on winding barrel (311), wire feeder (313) are installed to mounting panel (303) at the rear side of winding barrel (311), the front end of guide strip (306) is connected in the back chamfer angle department of locating piece (304) through a pair of connection piece (307) of "nearly" style of calligraphy, cutting off piece (308) are located between this pair of connection piece (307) and are used for cutting off thin iron wire (312), pressing down piece (309) are located on electrode column one (212) and are used for compressing tightly thin iron wire (312).

4. The multiple degree of freedom spot welding apparatus for iron picture manufacturing according to claim 2, characterized in that: the lifting rod (208) is sleeved with a first compression spring (225) between the fixed block (207) and the lifting block (209).

5. The multiple degree of freedom spot welding apparatus for iron picture manufacturing according to claim 3, characterized in that: cutting off part (308) includes cutting off cutter one (3081), guide post (3082) and cutting off cutter two (3083), cutting off cutter one (3081) level is leaned on down to set up and the cutting edge sets up, guide post (3082) are equipped with a pair of and vertical both ends of installing in cutting off cutter one (3081) up, cutting off cutter two (3083) level is leaned on to set up and the cutting edge sets up down, the both ends and two guide post (3082) sliding connection of cutting off cutter two (3083), the cover is equipped with compression spring two (3084) between cutting off cutter one (3081) and cutting off cutter two (3083) to guide post (3082).

6. The multiple degree of freedom spot welding apparatus for iron picture manufacturing according to claim 5, wherein: lower down part (309) includes holding down plate (3091), the downside of holding down plate (3091) corresponds and is equipped with down compression leg (3092) directly over each compresses tightly groove (304c), the downside of holding down plate (3091) corresponds and is equipped with down compression leg two (3093) directly over each cut-off (308), the upside of holding down plate (3091) is equipped with socket pipe (3094) between two parties, socket pipe (3094) are connected on electrode post (212) through the jackscrew.

Technical Field

The invention relates to the technical field of iron picture manufacturing, in particular to multi-degree-of-freedom spot welding equipment for iron picture manufacturing.

Background

The iron picture, named as "iron flower", is a special art work in the Wenhu city, Anhui province. When making the iron picture, the craftsman can choose low carbon steel as the raw materials of preparation iron picture to the black is replaced to iron, replace the pen with the hammer, beat out roughly the profile earlier, finely trim out the figure profile again, intercept out the part of these iron pictures again, link together the part of iron picture with certain spatial layout again, the embryo spare of preliminary formation iron picture, later still need to go through processes such as coloring, japanning and upper ledge just can really become the iron picture handicraft.

At present, the upper electrode and the lower electrode of the existing spot welding machine only have the opening and closing states in the vertical direction, and cannot be adjusted to be at a proper welding position according to the actual shapes of different parts in the iron picture, so that the spot welding machine brings inconvenience to craftsmen. In addition, the whole process of the existing spot welding machine needs manual work when welding the pine needle parts in the iron picture, and the manufacturing progress of a craftsman is greatly restricted.

Disclosure of Invention

The invention aims to provide a multi-degree-of-freedom spot welding device for iron picture manufacturing, which aims to solve the defects caused in the prior art.

The utility model provides a multi freedom's spot welding equipment for iron picture is made, includes workstation, spot welding mechanism and complementary unit, wherein:

the working platform is horizontally arranged;

the spot welding mechanism is fixedly arranged on the upper side of the workbench and used for realizing welding work of parts of the iron picture, and specifically comprises a rotating plate, a fixed block, a lifting rod, a lifting block, a first electrode column, a first telescopic cylinder, a second electrode column and a second telescopic cylinder;

the auxiliary mechanism can be dismantled and locate spot welding mechanism's front side and be used for sending into, compressing tightly, cutting off and take away work to the part of iron picture, auxiliary mechanism specifically includes backup pad, mounting panel, locating piece, benchmark piece, guide strip, cutting off parts and holding down.

Preferably, the rotating plate is a circular metal plate and is vertically arranged, a through rectangular groove is arranged in the middle of the lower portion of the rotating plate, a first clamp strip and a second clamp strip are respectively arranged on the upper side and the lower side of the rotating plate, the end portion of the first clamp strip is connected with the end portion of the second clamp strip through a first threaded rod, two ends of the first threaded rod are symmetrically connected with a first hand-screw nut, two ends of the second clamp strip are vertically fixed with a first downward support column, the lower end of the first support column is vertically fixed on the upper side of a workbench, the fixed block is arranged on the front side of the rotating plate in the middle and downwards, the lifting rod is vertically arranged and slidably connected to the fixed block, the lifting block is connected to the upper end of the lifting rod through a jackscrew, a first guide pipe is vertically welded on the front side of the lifting block, and first guide grooves along the axial direction of the first guide pipe are arranged on the left side and the right side of the first guide pipe, the inner side of the first guide tube is connected with a first telescopic rod in a sliding manner, the first electrode column is vertically connected with the front end of the first telescopic rod downwards through a jackscrew, a second threaded rod is vertically fixed at the rear end of the first telescopic rod, the second threaded rod horizontally penetrates through the first guide grooves at the two sides, two ends of the second threaded rod are symmetrically connected with second hand-screwed nuts, the first telescopic cylinders are provided with a pair of first telescopic cylinders and are symmetrically distributed in the left and right directions, the first telescopic cylinders are vertically connected with the middle part of the rear side of the rotating plate, the tail end of a piston rod of the first telescopic cylinders is connected with a first connecting piece, the first connecting piece is provided with a vertically-oriented limiting groove, the front side of the fixing block is vertically welded with a second guide tube, the left and right sides of the second guide tube are provided with second axial guide grooves along the second guide tube, the inner side of the second guide tube is connected with a second telescopic rod in a sliding manner, and the second electrode column is vertically upwards connected with the front end of the second telescopic rod through the jackscrew, the rear end vertical fixation threaded rod three of telescopic link two, the three level of threaded rod passes guide way two on both sides, the perpendicular symmetric connection in both ends of threaded rod three has hand screwed nut three, the both ends of threaded rod two and threaded rod three are all slided and are located the spacing inslot on both sides, two vertical settings down of telescopic cylinder are connected in the rear side of rotor plate between two parties through the cylinder stationary blade, the piston rod end-to-end connection of telescopic cylinder two has connection piece two, the front end of connection piece two runs through the rectangular channel and is connected in the lower extreme of lifter.

Preferably, the support plate is a rectangular metal plate and is horizontally arranged, upward second support columns are vertically fixed at four corners of the support plate, the mounting plate is horizontally fixed at the top ends of all the second support columns, the positioning block is arranged on the upper side of the mounting plate in the middle and close to the front, chamfering processing is performed at the four corners of the positioning block, a circular positioning hole is formed in the center of the positioning block, an X-shaped positioning groove is formed in the upper side of the positioning block, pressing grooves are uniformly formed in the positioning grooves in the upper side of the positioning block, the reference sheet is provided with a pair of chamfering angles which are symmetrically arranged on the front side of the positioning block, the guide strip is provided with a pair of chamfering angles which are symmetrically distributed on the rear side of the positioning block, a guide groove is formed in the upper side of the guide strip and faces the positioning grooves, and U-shaped mounting seats are symmetrically arranged on the lower side of the mounting plate, install a winding section of thick bamboo through the round pin axle on the mount pad, the winding has thin iron wire on the winding section of thick bamboo, the wire feeder is installed at the rear side of a winding section of thick bamboo to the mounting panel, the front end of guide strip is connected in the back bevel department of the rear side of locating piece through the connection piece of a pair of "nearly" style of calligraphy, the cutting part is located between this pair of connection piece and is used for cutting off to thin iron wire, it locates on the electrode column one and is used for compressing tightly to thin iron wire to push down the piece.

Preferably, the lifting rod is sleeved with a first compression spring between the fixed block and the lifting block.

Preferably, the cutting part includes cutting off cutter one, guide post and cutting off cutter two, cutting off cutter one level is leaned on and is set up and cutting edge up and set up, the guide post is equipped with a pair ofly and vertical installing in the both ends of cutting off cutter one up, two levels of cutting off cutter lean on to set up and cutting edge down and set up, the both ends and two guide post sliding connection of cutting off cutter two, the guide post cover is equipped with compression spring two between cutting off cutter one and cutting off cutter two.

Preferably, the holding-down member includes the holding-down plate, the downside of holding-down plate corresponds and is equipped with down compression leg one directly over each compresses tightly the groove, the downside of holding-down plate corresponds and is equipped with down compression leg two directly over each cutting-off member, the upside of holding-down plate is equipped with the pipe sleeve between two parties, the pipe sleeve passes through the jackscrew and connects on electrode column one.

Compared with the prior art, the multi-degree-of-freedom spot welding equipment for manufacturing the iron picture has the following advantages:

(1) when different iron picture parts need to be manually spot-welded by using a spot welding machine:

firstly, the included angle between the electrode column I and the electrode column II compared with the workbench can be adjusted by loosening the threaded rod I;

secondly, the expansion amount of the electrode column I compared with the guide tube I can be adjusted by loosening the threaded rod II;

and thirdly, the expansion amount of the electrode column II compared with the guide tube II can be adjusted by loosening the threaded rod III.

(2) When the pine needle blanks in the iron picture need to be automatically spot-welded by using a spot welding machine:

placing the auxiliary mechanism on the upper side of the workbench, enabling the electrode column II to penetrate through the positioning hole of the positioning block, and enabling the top surface of the electrode column II to be flush with the bottom surface of the positioning groove of the positioning block;

secondly, the thin iron wire on the winding drum passes through a wire feeder and then passes through a guide groove of a guide bar;

thirdly, the thin iron wire in the guide groove penetrates through a space between the first cutting knife and the second cutting knife through the wire feeder and then is continuously fed into the positioning groove of the positioning block until the thin iron wire is contacted with the reference sheet, and feeding is stopped;

fourthly, the piston rod of the telescopic cylinder II extends to drive the electrode column I, the lower pressing column I and the lower pressing column II to move downwards, the descending electrode column I is in contact with the fine iron wires and the electrode column II, and spot welding of the two fine iron wires at the cross point can be realized through large current; the first pressing column descends and is inserted into the pressing groove, and the thin iron wire positioned in the positioning groove is pressed; the second pressing column descends and tightly abuts against the upper side of the second cutting knife and pushes the second cutting knife to continuously move downwards so as to cut the thin iron wire;

fifthly, the first electrode column, the first downward pressing column and the second downward pressing column can be driven to move upwards through contraction of a piston rod of the second telescopic cylinder, meanwhile, pine needle blanks in an X-shaped structure can be adsorbed through the magnetized first downward pressing column, then, the first electrode column, the first downward pressing column and the pine needle blanks can be driven to move forwards through extension of the piston rod of the first telescopic cylinder, and finally, the pine needle blanks are taken away through a manual or external grabbing mechanism.

In conclusion, the multi-degree-of-freedom spot welding equipment for manufacturing the iron picture has the characteristics of ingenious design, reasonable structure and good applicability, can meet the requirements of spot welding on parts of the iron picture, and is particularly suitable for automatic welding work on pine needle blanks in the iron picture.

Drawings

Fig. 1 is a schematic overall three-dimensional structure of the present invention.

FIG. 2 is a schematic overall side view of the present invention.

Fig. 3 and 4 are schematic structural views of the spot welding mechanism in the present invention.

Fig. 5 and 6 are schematic structural views of the spot welding mechanism in the present invention.

Fig. 7 is a schematic structural diagram of a positioning block in the auxiliary mechanism.

Fig. 8 is a schematic structural view of a cutting member in the assist mechanism.

Fig. 9 is a schematic view of a push-down member in the assist mechanism.

Wherein:

10-a workbench;

20-spot welding mechanism; 201-rotating plate; 201 a-rectangular slot; 202-clip strip one; 203-a second hoop strip; 204-a first threaded rod; 205-screwing the first nut by hand; 206-support column one; 207-fixed block; 208-a lifting rod; 209-lifting block; 210-a guide tube I; 210 a-guide slot one; 211-a first telescopic rod; 212-electrode column one; 213-threaded rod two; 214-screw nut two by hand; 215-telescoping cylinder one; 216-connecting piece one; 216 a-a retaining groove; 217-a second guide tube; 217 a-guide groove two; 218-a second telescopic rod; 219-electrode column two; 220-threaded rod three; 221-hand screwing screw III; 222-a telescopic cylinder II; 223-cylinder fixing plate; 224-connecting piece two; 225-compression spring one;

30-an auxiliary mechanism; 301-a support plate; 302-support column two; 303-a mounting plate; 304-a locating block; 304 a-a locating hole; 304 b-a positioning groove; 304 c-a compaction groove; 305-a reference sheet; 306-a guide strip; 306 a-a guide slot; 307-connecting pieces; 308-cutting off parts; 3081 cutting off the first blade; 3082-guide posts; 3083 cutting knife II; 3084-compression spring two; 309-down press; 3091-lower pressing plate; 3092 pressing the first column downward; 3093 pressing the second column; 3094-a ferrule; 310-a mount; 311-a winding drum; 312-fine iron wire; 313-wire feeder.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 9, a spot welding apparatus with multiple degrees of freedom for manufacturing iron paintings includes a table 10, a spot welding mechanism 20, and an auxiliary mechanism 30, wherein:

the workbench 10 is horizontally arranged;

the spot welding mechanism 20 is fixedly arranged on the upper side of the workbench 10 and used for realizing welding work of parts of iron pictures, and the spot welding mechanism 20 specifically comprises a rotating plate 201, a fixed block 207, a lifting rod 208, a lifting block 209, a first electrode column 212, a first telescopic cylinder 215, a second electrode column 219 and a second telescopic cylinder 222;

the auxiliary mechanism 30 is detachably disposed at the front side of the spot welding mechanism 20 and is used for feeding, compressing, cutting and removing the iron picture, and the auxiliary mechanism 30 specifically includes a supporting plate 301, a mounting plate 303, a positioning block 304, a reference sheet 305, a guide bar 306, a cutting member 308 and a pressing member 309.

In this embodiment, the rotating plate 201 is a circular metal plate and is vertically arranged, a through rectangular groove 201a is centrally arranged at the lower part of the rotating plate 201, a first clamping strap 202 and a second clamping strap 203 are respectively arranged at the upper side and the lower side of the rotating plate 201, the end part of the first clamping strap 202 is connected with the end part of the second clamping strap 203 through a first threaded rod 204, two ends of the first threaded rod 204 are symmetrically connected with a first hand-screw nut 205, two ends of the second clamping strap 203 are vertically fixed with a first downward supporting column 206, the lower end of the first supporting column 206 is vertically fixed at the upper side of the workbench 10, the fixing block 207 is centrally and downwardly installed at the front side of the rotating plate 201, the lifting rod 208 is vertically arranged and slidably connected to the fixing block 207, the lifting block 209 is connected to the upper end of the lifting rod 208 through a jackscrew, a first guide tube 210 is vertically welded to the front side of the lifting block 209, the left side and the right side of the first guide tube 210 are provided with first guide grooves 210a along the axial direction of the first guide tube 210, the inner side of the first guide tube 210 is connected with a first telescopic rod 211 in a sliding manner, the first electrode column 212 is vertically connected with the front end of the first telescopic rod 211 downwards through jackscrews, a second threaded rod 213 is vertically fixed at the rear end of the first telescopic rod 211, the second threaded rod 213 horizontally penetrates through the first guide grooves 210a at the two sides, two ends of the second threaded rod 213 are symmetrically connected with second hand nuts 214, the first telescopic cylinder 215 is provided with a pair and is distributed in bilateral symmetry, the first telescopic cylinder 215 is vertically connected with the middle part of the rear side of the rotating plate 201, the tail end of a piston rod of the first telescopic cylinder 215 is connected with a first connecting piece 216, the first connecting piece 216 is provided with a limiting grooves in the vertical direction, the second guide tube 217 is vertically welded at the front side of the fixing block 207, and the left side and the right side of the second guide tube 217 are provided with second guide grooves 217a along the axial direction, the inner side of the second guide tube 217 is slidably connected with a second telescopic rod 218, the second electrode column 219 is vertically and upwards connected with the front end of the second telescopic rod 218 through a jackscrew, a third threaded rod 220 is vertically and fixedly arranged at the rear end of the second telescopic rod 218, the third threaded rod 220 horizontally penetrates through the second guide grooves 217a at two sides, the two ends of the third threaded rod 220 are vertically and symmetrically connected with third hand-screwed nuts 221, the two ends of the second threaded rod 213 and the third threaded rod 220 are both slidably arranged in the limiting grooves 216a at two sides, the second telescopic cylinder 222 is vertically and downwards arranged and is centrally connected to the rear side of the rotating plate 201 through a cylinder fixing piece 223, the tail end of a piston rod of the second telescopic cylinder 222 is connected with a second connecting piece 224, and the front end of the second connecting piece 224 penetrates through the rectangular groove 201a and is connected to the lower end of the lifting rod 208.

In this embodiment, the supporting plate 301 is a rectangular metal plate and is horizontally disposed, upward second supporting columns 302 are vertically fixed at four corners of the supporting plate 301, the mounting plate 303 is horizontally fixed at the top ends of all the second supporting columns 302, the positioning block 304 is centrally installed on the upper side of the mounting plate 303 in a front direction, four corners of the positioning block 304 are all subjected to chamfering treatment, a circular positioning hole 304a is formed in the center of the positioning block 304, an X-shaped positioning groove 304b is formed in the upper side of the positioning block 304, pressing grooves 304c are uniformly formed in the positioning groove 304b on the upper side of the positioning block 304, the reference sheet 305 is provided with a pair of two chamfering angles which are symmetrically installed on the front side of the positioning block 304, the guide bars 306 are provided with a pair of chamfering angles which are symmetrically distributed on the rear side of the positioning block 304, guide grooves 306a which are right opposite to the positioning grooves 304b are formed in the upper side of the guide bars 306, the mount pad 310 of U type is installed to the downside symmetry of mounting panel 304, install winding cylinder 311 through the round pin axle on the mount pad 310, the winding has thin iron wire 312 on the winding cylinder 311, wire feeder 313 is installed at the rear side of winding cylinder 311 to mounting panel 303, the front end of guide bar 306 is connected in the chamfer angle department of the rear side of locating piece 304 through the connection piece 307 of a pair of "nearly" style of calligraphy, cutting member 308 is located this and is used for the cutting off to thin iron wire 312 between connecting piece 307, pressing member 309 is located on electrode column 212 and is used for compressing tightly thin iron wire 312.

In this embodiment, the lifting rod 208 is sleeved with a first compression spring 225 between the fixed block 207 and the lifting block 209. The quick separation between the first electrode column 212 and the second electrode column 219 can be realized by additionally arranging the first compression spring 225, so that the influence on the final welding effect caused by the overlong electrifying time is avoided.

In this embodiment, cutting off piece 308 includes cutting off cutter one 3081, guide post 3082 and two 3083 of cutting off cutter, one 3081 level of cutting off cutter is leaned on down and the cutting edge sets up, guide post 3082 is equipped with a pair of and vertical both ends of installing in one 3081 of cutting off cutter up, two 3083 levels of cutting off cutter lean on to set up and the cutting edge sets up down, two 3083's both ends and two guide post 3082 sliding connection of cutting off cutter, guide post 3082 overlaps between one 3081 of cutting off cutter and two 3083 of cutting off cutter and is equipped with two 3084 compression springs. When the second cutting knife 3083 moves downwards, the thin iron wire 312 can be cut through the shearing action of the first cutting knife 3081 and the second cutting knife 3083.

In this embodiment, holding down piece 309 includes holding down plate 3091, the downside of holding down plate 3091 corresponds directly over each compresses tightly groove 304c and is equipped with down plunger 3092, the downside of holding down plate 3091 corresponds directly over each cut-off 308 and is equipped with two 3093 of lower plunger, the upside of holding down plate 3091 is equipped with socket 3094 in the middle, socket 3094 passes through the jackscrew and connects on electrode post 212. When the first electrode column 212 moves downwards, the first lower pressing column 3092 and the second lower pressing column 3093 can be synchronously driven to move downwards, the first lower pressing column 3092 descends and is inserted into the pressing groove 304c to press the thin iron wire 312 positioned in the positioning groove 304b, the second lower pressing column 3093 descends and abuts against the upper side of the second cutting knife 3083, and the second cutting knife 3083 is pushed to continuously move downwards.

In the embodiment, the spot welding equipment with multiple degrees of freedom for manufacturing the iron picture is actually applied:

step 1: placing the auxiliary mechanism 30 on the upper side of the workbench 10, and allowing the second electrode column 219 to pass through the positioning hole 304a of the positioning block, and simultaneously, making the top surface of the second electrode column 219 flush with the bottom surface of the positioning groove 304b of the positioning block 304 in height;

step 2: the thin iron wire 312 on the winding drum 311 passes through a wire feeder 313 and then passes through a guide groove 306a of the guide bar 306;

and step 3: the thin iron wire 312 in the guide groove 306a passes through the space between the first cutting knife 3081 and the second cutting knife 3083 through the wire feeder 313, and then is continuously fed into the positioning groove 304b of the positioning block 304 until the thin iron wire 312 is contacted with the reference sheet 305, and feeding is stopped;

and 4, step 4: the piston rod of the telescopic cylinder II 222 extends to drive the electrode column I212, the pressing column I3092 and the pressing column II 3093 to move downwards, the descending electrode column I212 is contacted with the thin iron wire 312 and the electrode column II 219, and spot welding of the two thin iron wires at the intersection point can be realized through large current; the first lower pressing column 3092 descends and is inserted into the pressing groove 304c to press the thin iron wire 312 positioned in the positioning groove 304 b; the second compression column 3093 descends and tightly abuts against the upper side of the second cutting knife 3083, pushes the second cutting knife 3083 to continuously move downwards, and cuts off the fine iron wire 312;

and 5: the first electrode column 212, the first push-down column 3092 and the second push-down column 3093 can be driven to move upwards by the contraction of the piston rod of the second telescopic cylinder 222, meanwhile, the pine needle blanks in the X-shaped structure can be adsorbed by the magnetized first push-down column 3092, then, the piston rod of the first telescopic cylinder 215 extends to drive the first electrode column 212, the first push-down column 3092 and the pine needle blanks to move forwards, and finally, the pine needle blanks are taken away by a manual or external grabbing mechanism.

The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.