阅读说明：本技术 一种锁扣合格判具 (Lock catch qualification judgment tool ) 是由 尤丹雷 于 2019-10-17 设计创作，主要内容包括：本发明公开了一种锁扣合格判具,包括用于固定锁扣的底座、安装在底座上用于检测锁扣的检测组件；检测组件包括开设有导向槽的立柱、活动插设在导向槽中的检测块,检测块能够沿导向槽作水平直线移动,检测块的端部设有检测模块,检测模块包括一对夹块、一对驱动装置、读数发生装置,每一夹块通过一个驱动装置连接在检测块上,每一夹块的外侧壁上设有若干读数发生装置,读数发生装置与读数显示装置连接。本发明的判具能够通过读数显示装置直接获取锁扣倾斜的原始数据,直观地、准确地评判锁扣的垂直程度。(The invention discloses a lock catch qualification judging tool, which comprises a base for fixing a lock catch and a detection assembly arranged on the base and used for detecting the lock catch; the detection assembly comprises a stand column with a guide groove, a detection block movably inserted in the guide groove, the detection block can move horizontally and linearly along the guide groove, the end of the detection block is provided with a detection module, the detection module comprises a pair of clamping blocks, a pair of driving devices and a reading generation device, each clamping block is connected to the detection block through one driving device, the outer side wall of each clamping block is provided with a plurality of reading generation devices, and the reading generation device is connected with a reading display device. The judging tool can directly acquire the original data of the inclination of the lock catch through the reading display device, and intuitively and accurately judge the vertical degree of the lock catch.)

1. A lock catch qualification judging tool comprises a base (10) for fixing a lock catch and a detection assembly (11) which is arranged on the base and used for detecting the lock catch; the detection assembly comprises a stand column (12) with a guide groove, a detection block (13) movably inserted in the guide groove, and the detection block can move horizontally and linearly along the guide groove, and is characterized in that: the end part of the detection block is provided with a detection module (200), the detection module comprises a pair of clamping blocks (201), a pair of driving devices and reading generation devices (30), each clamping block is connected to the detection block through one driving device, the outer side wall of each clamping block is provided with a plurality of reading generation devices, and the reading generation devices are distributed on the outer side wall of each clamping block in a U shape; each reading generation device comprises a movable contact (31) driven by a probe (20) and a fixed contact (32) capable of contacting with the movable contact, the fixed contact is arranged on a first bimetallic strip (33), a first coil (34) is wound on the first bimetallic strip and connected with the fixed contact, the movable contact is connected with the negative pole of a first power supply, the first coil is connected with a reading display device, and the reading display device is connected with the positive pole of the first power supply; the probe is movably matched on the clamping block.

2. The lock catch qualification testing tool of claim 1, wherein: the reading display device (40) comprises a second bimetal sheet (41) and a pointer (42), a second coil (43) is wound on the second bimetal sheet, the first coil (34) is connected with the second coil in series, the second bimetal sheet is connected with the pointer, and the second coil is connected with the positive electrode of the first power supply.

3. The lock catch qualification testing tool of claim 2, wherein: the pointer (42) is pivoted on the pointer shaft (44), one end of the second bimetallic strip (41) is provided with a driving piece (45), the other end of the second bimetallic strip is fixedly arranged, one end of the pointer pivoted with the pointer shaft is provided with a connecting hole, and the driving piece is matched in the connecting hole.

4. The lock catch qualification testing tool of claim 2, wherein: the reading generation device (30) is provided with a support (35), the support is installed on the side wall of a shell (36) of the reading generation device and comprises a first branch (351), a second branch (352) and a third branch (353), the first branch is installed on the side wall of the shell and connected with a metal elastic sheet (37), the movable contact (31) is installed on the metal elastic sheet, and the metal elastic sheet abuts against the probe (20); the first bimetallic strip (33) is arranged on the second branch, the third branch is pressed on the insulating joint (38), the insulating joint is arranged on the shell, a binding post (380) is arranged in the insulating joint, the first coil (34) is connected with the binding post through a lead, and the second coil (43) is connected with the binding post through a lead.

5. The lock catch qualification testing tool of claim 4, wherein: a switch device (39) is arranged in the shell (36), and the switch device comprises a switch shell (391), a fixed conductive block (392) fixedly arranged in the switch shell, a movable conductive block (393) elastically arranged in the switch shell and a push rod (394) movably matched in the switch shell; the movable conductive block and the fixed conductive block are in a normally closed state, the head end of the push rod is abutted against the movable conductive block, and the tail end of the push rod is abutted against the metal elastic sheet (37); all the switch devices on one clamping block (201) are connected in series, all the switch devices after being connected in series are connected in series with the motor, all the switch devices after being connected in series control the on-off of the motor and the second power supply, the motor is connected with a screw rod (50) of a screw rod mechanism, and the screw rod mechanism and the motor form the driving device.

6. The lock catch qualification testing tool of claim 5, wherein: the number of the probes (20) is several, and each probe is matched with a reading generation device (30), a reading display device (40) and a first power supply; the reading display device, the first power supply and the second power supply are arranged on the base (10); the motor is arranged on the detection block (13).

Technical Field

The invention relates to the technical field of product detection, in particular to a detection jig for a lock catch.

Background

As shown in FIG. 1, a lock catch 40, during actual use, the perpendicularity of the U-shaped buckle 42 of the lock catch needs to be within a certain tolerance range, otherwise, the lock catch is unqualified.

Disclosure of Invention

The technical problems solved by the invention are as follows: how to detect the vertical degree of the U-shaped buckle and obtain the original data of the vertical degree of the U-shaped buckle.

In order to solve the technical problems, the invention provides the following technical scheme: a lock catch qualification judging tool comprises a base for fixing a lock catch and a detection assembly arranged on the base and used for detecting the lock catch; the detection assembly comprises an upright post provided with a guide groove and a detection block movably inserted in the guide groove, the detection block can move horizontally and linearly along the guide groove, a detection module is arranged at the end part of the detection block and comprises a pair of clamping blocks, a pair of driving devices and reading generation devices, each clamping block is connected to the detection block through one driving device, the outer side wall of each clamping block is provided with a plurality of reading generation devices, and the reading generation devices are distributed on the outer side wall of each clamping block in a U shape; each reading generation device comprises a moving contact driven by a probe and a static contact capable of contacting with the moving contact, the static contact is arranged on a first bimetal sheet, a first coil is wound on the first bimetal sheet and connected with the static contact, the moving contact is connected with the negative electrode of a first power supply, the first coil is connected with a reading display device, and the reading display device is connected with the positive electrode of the first power supply; the probe is movably matched on the clamping block.

According to the technical scheme, the lock catch is fixed on the base, the detector moves the detection block, and the pair of clamping blocks move towards the lock catch, so that the lock catch is positioned between the pair of clamping blocks. The pair of driving devices respectively drive the pair of clamping blocks to move oppositely, and the pair of clamping blocks clamp the lock catch.

The lock catch is in an inclined state and is not parallel to the clamping block, the part of the lock catch far away from the clamping block acts on the probe, and the displacement of the probe is small. The part of the lock catch, which is closer to the clamping block, acts on the probe, and the displacement of the probe is larger.

The probe that the displacement volume is big drives the moving contact, and the displacement volume of this moving contact is big to the pressure of static contact, and first coil circular telegram needs the great deflection of first bimetallic strip emergence for a long time, just can make moving contact and static contact separate. After the two contacts are separated, the two contacts are contacted again only by short cooling time. Therefore, the contact time of the two contacts is long, the separation time is short, the average value of the current of the reading display device connected with the first coil is large, and the reading display device can display a large numerical value.

The probe with small displacement drives the moving contact driven by the probe to have small displacement, the moving contact has small pressure on the static contact, the first coil is electrified, and the first bimetal sheet needs to generate small deformation in short time, so that the moving contact and the static contact can be separated. After the two contacts are separated, a longer cooling time is needed, and the two contacts can be contacted again. Therefore, the contact time of the two contacts is short, the separation time is long, the average value of the current of the reading display device connected with the first coil is small, and the reading display device can display a small value.

The quantity of the probes is several, and each probe is matched with one reading generation device, one reading display device and one first power supply, namely, the probes work independently.

The reading display devices can display different readings according to the displacement of the probe, so that a detector can know which position of the lock catch is far away from the clamping block and which position is close to the clamping block, and further know the inclination direction and the inclination degree of the lock catch. So as to judge whether the vertical degree of the lock catch meets the requirement.

The judging tool can directly acquire the original data of the inclination of the lock catch and can intuitively and accurately judge the vertical degree of the lock catch.

Drawings

The invention is further described below with reference to the accompanying drawings:

FIG. 1 is a schematic view of a lock qualification testing tool;

fig. 2 is a schematic view of a pair of clamping blocks 201 clamping the lock catch 60 from top to bottom;

FIG. 3 is a schematic view of a combination structure of the reading generation device 30 and the reading display device 40;

FIG. 4 is a schematic view of the switching device 39;

fig. 5 is an enlarged view of a portion a in fig. 2.

The symbols in the drawings illustrate that:

10. a base; 11. a detection component; 12. a column; 13. a detection block;

200. a detection module; 201. a clamping block;

20. a probe; 21. an annular flange; 22. a locking member; 23. a spring;

30. a reading generation device; 31. a moving contact; 32. static contact; 33. a first bimetal sheet; 34. a first coil; 35. a support; 351. a first branch; 352. a second branch; 353. a third branch; 36. a housing; 37. a metal spring sheet; 38. an insulated joint; 380. a binding post; 39. a switching device; 391. a switch housing; 392. fixing the conductive block; 393. a movable conductive block; 394. a push rod; 395. a return spring; 396. the piston is fixedly connected with the push rod and can slide in the switch shell;

40. a reading display device; 41. a second bimetallic strip; 42. a pointer; 43. a second coil; 44. a pointer shaft; 45. a drive member;

50. a screw rod; 51. a guide bar;

60. locking;

70. and (4) clamping.

Detailed Description

As shown in fig. 1, a qualified lock catch judging tool includes a base 10 for fixing a lock catch, and a detecting component 11 mounted on the base for detecting the lock catch; the detection assembly comprises an upright post 12 provided with a guide groove and a detection block 13 movably inserted in the guide groove, and the detection block can move horizontally and linearly along the guide groove.

With reference to fig. 2 and 3, a detection module 200 is disposed at an end of the detection block 13, and includes a pair of clamping blocks 201, a pair of driving devices, and a reading generation device 30, each clamping block is connected to the detection block through one driving device, a plurality of reading generation devices are disposed on an outer side wall of each clamping block, and the plurality of reading generation devices are distributed on the outer side wall of the clamping block in a U shape; each reading generation device comprises a movable contact 31 driven by the probe 20 and a fixed contact 32 capable of contacting with the movable contact, the fixed contact is arranged on a first bimetallic strip 33, a first coil 34 is wound on the first bimetallic strip and connected with the fixed contact, the movable contact is connected with the negative pole of a first power supply, the first coil is connected with a reading display device, and the reading display device is connected with the positive pole of the first power supply; the probe is movably matched on the clamping block.

The lock catch 60 is fixed to the base 10 by the clamp 70, and the examiner moves the examination block 13 and the pair of clamp blocks toward the lock catch, so that the lock catch is positioned between the pair of clamp blocks 201. The pair of driving devices respectively drive the pair of clamping blocks to move oppositely, and the pair of clamping blocks clamp the lock catch.

The latch 60 is in an inclined state and is not parallel to the clamping block 201, and the part of the latch far away from the clamping block acts on the probe 20, so that the displacement of the probe is small. The part of the lock catch, which is closer to the clamping block, acts on the probe, and the displacement of the probe is larger. The probe with large displacement drives the moving contact 31 to have large displacement, the moving contact has large pressure on the static contact 32, the first coil 34 is electrified, and the first bimetal sheet 33 needs to be deformed for a long time to separate the moving contact from the static contact. After the two contacts are separated, the two contacts are contacted again only by short cooling time. Therefore, the contact time of the two contacts is long, the separation time is short, the average value of the current of the reading display device connected with the first coil is large, and the reading display device can display a large numerical value. The probe with small displacement is characterized in that the displacement of the movable contact 31 driven by the probe is small, the pressure of the movable contact on the fixed contact 32 is small, the first coil 34 is electrified, and the movable contact and the fixed contact can be separated by a small deformation of the first bimetallic strip 33 in a short time. After the two contacts are separated, a longer cooling time is needed, and the two contacts can be contacted again. Therefore, the contact time of the two contacts is short, the separation time is long, the average value of the current of the reading display device connected with the first coil is small, and the reading display device can display a small value.

A plurality of reading generating device are the U-shaped distribution on the clamp splice lateral wall, profile modeling in U-shaped hasp, and a plurality of reading generating device can detect the distance of hasp relative clamp splice everywhere.

The number of probes 20 is several, each probe being associated with a reading generation device 30, a reading display device 40 and a first power source.

The reading display device 40 comprises a second bimetallic strip 41 and a pointer 42, wherein a second coil 43 is wound on the second bimetallic strip, the first coil 34 is connected with the second coil in series, the second bimetallic strip is connected with the pointer, and the second coil is connected with the positive electrode of the first power supply. The trend of the current is as follows: the power supply comprises a first power supply anode, a second coil, a first coil, a fixed contact, a movable contact and a first power supply cathode. When the second coil has a current with a larger average value, the second bimetal 41 has a larger deformation, the angle of the second bimetal for driving the pointer to rotate is larger, and the numerical value pointed by the pointer is larger. When the current with a smaller average value exists in the second coil, the deformation amount of the second bimetal sheet 41 is small, the angle of the second bimetal sheet for driving the pointer to rotate is small, and the numerical value pointed by the pointer is small.

The pointer 42 is pivoted on the pointer shaft 44, one end of the second bimetallic strip 41 is provided with a driving part 45, the other end is fixedly arranged, one end of the pointer pivoted with the pointer shaft is provided with a connecting hole, and the driving part is matched in the connecting hole. The deformation of the second bimetallic strip drives the pointer via the drive member 45, which rotates about the pointer axis. The reading display device 40 also has a housing, one end of the second bimetallic strip is fixedly mounted on the inner side wall of the housing, and the pointer shaft 44 is mounted on the inner side wall of the housing. The reading display device 40 is mounted on the base 10, and its connection to the corresponding reading generation device is made by wires.

The reading generation device 30 is provided with a support 35, the support is mounted on the side wall of a shell 36 of the reading generation device, the support comprises a first branch 351, a second branch 352 and a third branch 353, the first branch is mounted on the side wall of the shell, the first branch is connected with a metal elastic sheet 37, the movable contact 31 is mounted on the metal elastic sheet, and the metal elastic sheet abuts against the probe 20; the first bimetal piece 33 is installed on the second branch, the third branch is pressed against the insulating joint 38, the insulating joint is installed on the shell, a binding post 380 is arranged in the insulating joint, the first coil 34 is connected with the binding post through a lead, and the second coil 43 is connected with the binding post through a lead. The wire connecting the first coil and the terminal is arranged on the third branch, and the moving contact 31 and the wire of the power supply are distributed on the metal elastic sheet.

Referring to fig. 2 and 5, the probe 20 is mounted on the clamping block 201 through an elastic component, the head end of the probe protrudes out of the inner side surface of the clamping block, the tail end of the probe extends backwards into the shell 36 of the reading generation device 30 and abuts against the metal elastic sheet 37, and the shell is mounted on the outer side wall of the clamping block. The resilient member acts to reset the probe. Specifically, the probe is provided with an annular flange 21, the clamping block is provided with a mounting hole site, the annular flange is located in the mounting hole site, a locking piece 22 is screwed in the mounting hole site, a spring 23 is arranged between the locking piece and the annular flange, and the tail end of the probe protrudes out of the locking piece and extends into a shell 36 of the reading generation device 30 to abut against a metal elastic sheet 37. The inner side surfaces of the clamping blocks refer to the opposite side surfaces of the pair of clamping blocks.

Referring to fig. 3 and 4, a switch device 39 is disposed in the housing 36, and includes a switch housing 391, a fixed conductive block 392 disposed in the switch housing, a movable conductive block 393 elastically mounted in the switch housing, and a push rod 394 movably fitted in the switch housing; the movable conductive block and the fixed conductive block are in a normally closed state, the head end of the push rod is abutted against the movable conductive block, and the tail end of the push rod is abutted against the metal elastic sheet 37; all the switch devices on one clamping block 201 are connected in series, all the switch devices after being connected in series are connected in series with the motor, all the switch devices after being connected in series control the on-off of the motor and the second power supply, the motor is connected with a screw rod 50 of a screw rod mechanism, and the screw rod mechanism and the motor form the driving device. The first power supply and the second power supply are mounted on the base 10 and connected with the reading generation device and the reading display device through wires.

The motor is mounted on the detection block 13, and when all the switch devices 39 of one of the pair of clamping blocks 201 are closed, the motor and a second power supply form a loop, and the second power supply supplies power to the motor. If only one of the switching devices 39 of one block is turned on, the connection of the second power source to the motor is cut off.

In practice, first, the shackle 60 is positioned between a pair of clamping blocks 201, but without contact with the clamping blocks. The motor is respectively a first motor and a second motor, the first motor is used for driving a first clamping block of the pair of clamping blocks, and the second motor is used for driving a second clamping block of the pair of clamping blocks. The second power supply for supplying power to the first motor is a first power supply, and the second power supply for supplying power to the second motor is a second power supply. The inspector closes a main switch to enable the first power supply and the second power supply to supply power to the first motor and the second motor respectively. The first motor drives the screw rod mechanism connected with the first motor to drive the first clamping block, the second motor drives the screw rod mechanism connected with the second motor to drive the second clamping block, and the first clamping block and the second clamping block move oppositely.

Along with the first clamping block and the second clamping block move in opposite directions, the probe on the first clamping block abuts against the lock catch, and the probe on the second clamping block abuts against the lock catch. Among all the probes on the first clamping block, the probe which is firstly abutted against the lock catch acts on the push rod 394 through the metal elastic sheet 37 to disconnect the movable conductive block 393 and the fixed conductive block 392 of the corresponding switch device 39, so that the first motor stops acting, and the first clamping block stops moving. Among all the probes on the second clamping block, the probe which is firstly abutted against the lock catch acts on the push rod 394 through the metal elastic sheet 37 to disconnect the movable conductive block 393 and the fixed conductive block 392 of the corresponding switch device 39, so that the second motor stops acting, and the second clamping block stops moving. When the first clamping block and the second clamping block stop moving, all the probes on the two clamping blocks move, and all the corresponding moving contact 31 and the corresponding fixed contact 32 are contacted, only the probe which is firstly contacted with the lock catch disconnects one switch device 39, and the gap between the moving contact 31 and the fixed contact 32 and the gap between the push rod 394 and the metal elastic sheet 37 can be controlled. Thus, all the reading display devices have readings.

If the readings of all the reading display devices connected with the reading generation device on the first clamping block are equal, and the readings of all the reading display devices connected with the reading generation device on the second clamping block are equal, the lock catch is in an ideal vertical state.

If the reading of the reading display device connected with the reading generation device positioned above the first clamping block is larger than that of the reading display device connected with the reading generation device positioned below the first clamping block, and the reading of the reading display device connected with the reading generation device positioned above the second clamping block is smaller than that of the reading display device connected with the reading generation device positioned below the second clamping block, the lock catch inclines and inclines towards the direction of the first clamping block, and the inclination degree can be obtained through the reading of each reading display device.

The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description herein, since various changes and modifications can be made in the details of the embodiment and the application range according to the spirit of the present invention.