Test tool for coded lock circuit board

By designing adjustable upper and lower molds and test tooling for pressing components, the problem of difficulty in adapting to circuit boards of various shapes in the prior art is solved, and the cost-saving and flexible adaptation effect is achieved.

CN222882802UActive Publication Date: 2025-05-16WUXI COM-SHIP ELECTRIONIC CO LTD
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Patent Information

Application Number
CN202421638955.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-11
Publication Date
2025-05-16
Estimated Expiration
2034-07-11

AI Technical Summary

Technical Problem

Existing password lock circuit board test tooling is difficult to adapt to circuit boards of different shapes, resulting in increased testing costs.

Method used

A test tool including upper mold and lower mold is designed. Through the arrangement of upper mold and lower mold, it can be adapted to circuit boards of different shapes, and the upper mold and lower mold are tightened by the compression assembly.

Benefits of technology

It realizes flexible adaptation of password lock circuit boards of different shapes, saves the cost of testing tooling, and facilitates the storage and replacement of upper and lower molds.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a test tool for a coded lock circuit board. The test tool comprises a base, a supporting seat, a push-pull clamp, a lower pressing plate, a bottom plate, an upper die and a lower die, the supporting seat is fixedly located in the middle of the rear side of the top of the base, the push-pull clamp is fixedly located at the upper end of the front side of the supporting seat, the lower pressing plate is fixedly connected with the bottom of a displacement rod of the push-pull clamp, the bottom plate is fixedly located on the top of the base and located under the lower pressing plate, and the upper die is fixedly connected with the bottom of the lower pressing plate. The lower die is fixedly connected with the top of the bottom plate; the bottom of the lower pressing plate and the top of the bottom plate are each provided with three dovetail grooves from left to right. The top of the upper die and the bottom of the lower die are each fixedly provided with three dovetail blocks from left to right, and each dovetail block corresponds to the corresponding dovetail groove in position. The die has the advantages that the cost is saved, and the upper die and the lower die can be conveniently replaced according to different coded lock circuit boards.
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Description

Technical Field

[0001] The utility model relates to the field of circuit board testing tools, in particular to a testing tool for a password lock circuit board. Background Art

[0002] When testing the circuit board of an existing combination lock, a test fixture is required. The push-pull clamp is pulled downward to drive the probe at the bottom of the lower pressure plate to contact the tin plate on the top of the circuit board, thereby measuring the function of the circuit board. However, due to the large number of types of combination locks, the shape of the circuit board changes when the circuit board is adapted. At this time, the test fixture cannot adapt to circuit boards of various shapes, and adding test fixtures will further increase costs. Utility Model Content

[0003] The utility model aims to provide a testing tool for a password lock circuit board, which has the advantages of saving costs and conveniently replacing an upper mold and a lower mold according to different password lock circuit boards.

[0004] The above technical objectives of the utility model are achieved through the following technical solutions:

[0005] A test fixture for a password lock circuit board, comprising a base, a support base, a push-pull clamp, a lower pressure plate, a bottom plate, an upper die, and a lower die;

[0006] The support seat is fixedly located at the middle position of the top rear side of the base, the push-pull clamp is fixedly located at the upper end of the front side of the support seat, the lower pressing plate is fixedly connected to the bottom of the displacement rod of the push-pull clamp, the bottom plate is fixedly located at the top of the base, the bottom plate is located directly below the lower pressing plate, the upper mold is fixedly connected to the bottom of the lower pressing plate, and the lower mold is fixedly connected to the top of the bottom plate;

[0007] The bottom of the lower pressing plate and the top of the bottom plate are both provided with three dovetail grooves from left to right, and the lower end of the front side of the lower pressing plate and the upper end of the front side of the bottom plate are both provided with a clearance groove;

[0008] The top of the upper die and the bottom of the lower die are both fixedly provided with three dovetail blocks from left to right, each of the dovetail blocks corresponds to the position of its corresponding dovetail groove, and the front side of the top of each upper die and the front side of the bottom of the lower die are provided with a clamping block, and each of the clamping blocks is clamped in its corresponding clearance groove;

[0009] The left and right sides of the front sides of the lower pressure plate and the bottom plate are fixedly provided with clamping assemblies, and the clamping assemblies include a pressure block, a bolt, a spring, and an annular gasket. The pressure block is a square block, and a circular through-hole is provided on the front side of each pressure block away from the end of its corresponding clamping block, and a limited circular groove is provided on the front side of each pressure block at the circular through-hole, and a spring is placed in each of the limited circular grooves, and a gasket is placed at the front side of each pressure block corresponding to the position of the limited circular groove, and a bolt is inserted in the gasket, and each of the bolts passes through the circular through-hole of its corresponding pressure block, and each of the bolts is fixedly connected to the corresponding lower pressure plate and the front side of the bottom plate.

[0010] The preferred solutions are as follows:

[0011] Preferably, the support seat comprises two support plates and a mounting plate, the support plates are placed vertically, the mounting plate is fixedly located at the front upper end between the two support plates, and the push-pull clamp is fixedly connected to the front side of the mounting plate.

[0012] Preferably, the cross-section of the lower pressure plate is "concave", and the left and right sides of the support seat are provided with guide components, each of the guide components includes an upper block, a lower block, a first guide rod, and a first screw, the top of the first guide rod is provided with a first threaded hole, the top of the upper block is provided with a first circular through-hole, the top of the lower block is provided with a second circular through-hole, the diameter of the second circular through-hole is consistent with the diameter of the first guide rod, the lower end of the left side portion of the left support plate and the lower end of the right side portion of the right support plate are fixedly provided with a lower block, the first guide rod is inserted into the second circular through-hole of each of the lower blocks, the upper end of the left side portion of the left support plate and the upper end of the right side portion of the right support plate are fixedly provided with an upper block, the top of each first guide rod is against the bottom of its corresponding upper block, the first circular through-hole of each of the upper blocks is provided with a first screw, and each of the first screw is threadedly connected with the first threaded hole at the top of its corresponding first guide rod;

[0013] The "concave" opening of the lower pressure plate faces backwards, and the front end of the support seat is located in the "concave" opening of the lower pressure plate. A third circular through hole is opened on the left and right sides of the rear side of the lower pressure plate. The two third circular through holes of the lower pressure plate are respectively mounted on the two first guide rods, and the lower pressure plate is located between the upper block and the lower block.

[0014] Preferably: a second guide rod is fixedly provided on the top left and right sides of the base plate, a fourth circular through-hole corresponding to the position of the second guide rod is provided on the top left and right sides of the lower pressure plate, and the lower pressure plate is plugged onto the two second guide rods through the two fourth circular through-holes.

[0015] In summary, the utility model has the following beneficial effects:

[0016] 1. Through the setting of the upper mold and the lower mold, different upper molds and lower molds can be selected for different password lock circuit boards, thereby saving the cost of the base plate and the support seat, and at the same time facilitating the storage of the upper mold and the lower mold;

[0017] 2. By setting the clamping assembly, the upper die and the lower die can be pressed tightly together. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the embodiment;

[0019] Figure 2 is an exploded view of an upper die and a lower die of the overall structure of the embodiment;

[0020] Figure 3 is a partial cross-sectional view of a clamping assembly of an embodiment.

[0021] In the figure, 1, base; 2, support seat; 3, push-pull clamp; 4, lower pressure plate; 5, bottom plate; 6, upper mold; 7, lower mold; 8, dovetail block; 9, clamping block; 10, clamping assembly; 11, pressure block; 12, bolt; 13, spring; 14, gasket; 15, support plate; 16, mounting plate; 17, guide assembly; 18, upper block; 19, lower block; 20, first guide rod; 21, first screw; 22, second guide rod. DETAILED DESCRIPTION

[0022] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0023] The same components are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings.

[0024] A test fixture for a password lock circuit board, such as Figure 1-Figure 3 As shown, it includes a base 1, a support base 2, a push-pull clamp 3, a lower pressing plate 4, a bottom plate 5, an upper mold 6, and a lower mold 7;

[0025] The support seat 2 is fixed at the middle position of the top rear side of the base 1, and the push-pull clamp 3 is fixed at the upper end of the front side of the support seat 2. The support seat 2 includes two support plates 15 and a mounting plate 16. The support plates 15 are placed vertically, and the mounting plate 16 is fixed at the upper end of the front side between the two support plates 15. The push-pull clamp 3 is fixedly connected to the front side of the mounting plate 16.

[0026] The lower pressing plate 4 is fixedly connected to the bottom of the displacement rod of the push-pull clamp 3, the bottom plate 5 is fixedly located on the top of the base 1, the bottom plate 5 is located directly below the lower pressing plate 4, the upper die 6 is fixedly connected to the bottom of the lower pressing plate 4, and the lower die 7 is fixedly connected to the top of the bottom plate 5;

[0027] The cross section of the lower pressure plate 4 is "concave", and guide assemblies 17 are provided on the left and right sides of the support seat 2. Each guide assembly 17 includes an upper block 18, a lower block 19, a first guide rod 20, and a first screw 21. A first threaded hole is provided at the top of the first guide rod 20, a first circular through hole is provided at the top of the upper block 18, and a second circular through hole is provided at the top of the lower block 19. The diameter of the second circular through hole is consistent with the diameter of the first guide rod 20. The lower end of the left side portion of the left support plate 15 is aligned with the right support plate 1 5, a lower block 19 is fixedly provided at the lower end of the right side portion, a first guide rod 20 is inserted into the second circular through hole of each lower block 19, an upper block 18 is fixedly provided at the upper end of the left side portion of the support plate 15 on the left and the upper end of the right side portion of the support plate 15 on the right, the top of each first guide rod 20 is butted against the bottom of the corresponding upper block 18, a first screw 21 is provided in the first circular through hole of each upper block 18, and each first screw 21 is threadedly connected with the first threaded hole at the top of the corresponding first guide rod 20;

[0028] The "concave" opening of the lower pressure plate 4 faces backward, and the front end of the support seat 2 is located in the "concave" opening of the lower pressure plate 4. The left and right sides of the rear side of the lower pressure plate 4 are provided with third circular through holes. The two third circular through holes of the lower pressure plate 4 are respectively mounted on the two first guide rods 20. The lower pressure plate 4 is located between the upper block 18 and the lower block 19.

[0029] Two second screws are respectively provided at the upper end and the lower end of each support plate 15 on one side of the mounting plate 16, and each second screw is threadedly connected to its corresponding upper block 18 and lower block 19, thereby completing the fixation of the upper block 18 and the lower block 19. Therefore, when installing the lower pressure plate 4, the two lower blocks 19 are installed first, and then the first guide rod 20 is inserted into the second circular through-hole of the lower block 19, and the lower pressure plate 4 is casually inserted into the two guide rods through the two third circular through-holes, and then the two upper blocks 18 are fixed, and then the first screw 21 in the upper block 18 is threadedly connected to the corresponding first guide rod 20 to complete the fixation.

[0030] A second guide rod 22 is fixedly provided on the left and right sides of the top of the bottom plate 5, and a fourth circular through-hole corresponding to the position of the second guide rod 22 is provided on the left and right sides of the top of the lower pressure plate 4. The lower pressure plate 4 is plugged onto the two second guide rods 22 through the two fourth circular through-holes.

[0031] The bottom of the lower pressing plate 4 and the top of the bottom plate 5 are both provided with three dovetail grooves from left to right, and the lower end of the front side of the lower pressing plate 4 and the upper end of the front side of the bottom plate 5 are both provided with a clearance groove;

[0032] Three dovetail blocks 8 are fixedly provided on the top of the upper die 6 and the bottom of the lower die 7 from left to right, and each dovetail block 8 corresponds to the position of its corresponding dovetail groove. A clamping block 9 is provided on the front side of the top of each upper die 6 and the front side of the bottom of the lower die 7, and each clamping block 9 is clamped in its corresponding clearance groove.

[0033] A clamping assembly 10 is fixedly provided on the left and right sides of the front sides of the lower pressing plate 4 and the bottom plate 5. The clamping assembly 10 includes a pressing block 11, a bolt 12, a spring 13, and a circular gasket 14. The pressing block 11 is a square block. A circular through-hole is provided on the front side of one end of each pressing block 11 away from its corresponding clamping block 9. A limited circular groove is provided on the front side of each pressing block 11 at the circular through-hole. A spring 13 is placed in each limited circular groove. A gasket 14 is placed at the front side of each pressing block 11 corresponding to the position of the limited circular groove. Bolts 12 are inserted in the gasket 14. Each bolt 12 passes through the circular through-hole of its corresponding pressing block 11. Each bolt 12 is fixedly connected to the front side of its corresponding lower pressing plate 4 and bottom plate 5.

[0034] The bolt head of each bolt 12 abuts against the gasket 14, and the gasket 14 is located in the limiting circular groove of the pressure block 11. When the bolt 12 is rotated, the bolt 12 squeezes the gasket 14, and the gasket 14 squeezes the spring 13. The spring 13 is compressed in the limiting circular groove, and the block 9 can be tightened to complete the fixation.

[0035] Specific implementation process:

[0036] Step 1: When installing the upper mold 6 and the lower mold 7, first select the upper mold 6 and the lower mold 7 according to the password lock circuit board to be tested;

[0037] Step 2: Rotate each clamping assembly 10 so that the end of the clamping block 11 of each clamping assembly 10 away from the bolt 12 leaves the corresponding clearance groove;

[0038] Step 3: Insert the upper die 6 and the lower die 7 into the dovetail grooves of the lower pressing plate 4 and the bottom plate 5 respectively through the dovetail block 8;

[0039] Step 4: Pull the pressing block 11 of each clamping assembly 10 forward, and each pressing block 11 drives its corresponding spring 13 to be compressed. Then rotate the pressing block 11 so that the end of the pressing block 11 of each clamping assembly 10 away from the bolt 12 is located at its corresponding block 9, and release the pressing block 11. The spring 13 presses against its corresponding pressing block 11 to press its corresponding upper mold 6 and lower mold 7.

[0040] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A test fixture for a password lock circuit board, characterized in that: It comprises a base (1), a support base (2), a push-pull clamp (3), a lower pressing plate (4), a bottom plate (5), an upper die (6), and a lower die (7); The support seat (2) is fixedly located at the middle position of the top rear side of the base (1); the push-pull clamp (3) is fixedly located at the upper end of the front side of the support seat (2); the lower pressure plate (4) is fixedly connected to the bottom of the displacement rod of the push-pull clamp (3); the bottom plate (5) is fixedly located at the top of the base (1); the bottom plate (5) is located directly below the lower pressure plate (4); the upper mold (6) is fixedly connected to the bottom of the lower pressure plate (4); and the lower mold (7) is fixedly connected to the top of the bottom plate (5); The bottom of the lower pressing plate (4) and the top of the bottom plate (5) are both provided with three dovetail grooves from left to right, and the lower end of the front side of the lower pressing plate (4) and the upper end of the front side of the bottom plate (5) are both provided with a clearance groove; The top of the upper mold (6) and the bottom of the lower mold (7) are both fixedly provided with three dovetail blocks (8) from left to right, each of the dovetail blocks (8) corresponds to the position of its corresponding dovetail groove, and the front side of the top of each upper mold (6) and the front side of the bottom of the lower mold (7) are each provided with a clamping block (9), and each of the clamping blocks (9) is clamped in its corresponding clearance groove; A clamping assembly (10) is fixedly provided on the left and right sides of the front side of the lower pressure plate (4) and the bottom plate (5), and the clamping assembly (10) includes a pressure block (11), a bolt (12), a spring (13), and a circular gasket (14). The pressure block (11) is a square block, and a circular through hole is provided on the front side of one end of each pressure block (11) away from its corresponding clamping block (9). A limiting circular groove is provided on the front side of each pressure block (11) at the circular through hole, and a spring (13) is placed in each limiting circular groove. A gasket (14) is placed at the front side of each pressure block (11) corresponding to the position of the limiting circular groove, and a bolt (12) is inserted into the gasket (14). Each bolt (12) passes through the circular through hole of its corresponding pressure block (11), and each bolt (12) is fixedly connected to the front side of its corresponding lower pressure plate (4) and bottom plate (5).

2. The test fixture for a combination lock circuit board according to claim 1, characterized in that: The support seat (2) comprises two support plates (15) and a mounting plate (16); the support plates (15) are placed vertically; the mounting plate (16) is fixedly located at the upper front end between the two support plates (15); and the push-pull clamp (3) is fixedly connected to the front side of the mounting plate (16).

3. The test fixture for a combination lock circuit board according to claim 2, characterized in that: The cross section of the lower pressure plate (4) is concave in shape. The left and right sides of the support seat (2) are provided with guide assemblies (17). Each of the guide assemblies (17) includes an upper block (18), a lower block (19), a first guide rod (20), and a first screw (21). The top of the first guide rod (20) is provided with a first threaded hole. The top of the upper block (18) is provided with a first circular through hole. The top of the lower block (19) is provided with a second circular through hole. The diameter of the second circular through hole is consistent with the diameter of the first guide rod (20). The lower end of the left side portion of the support plate (15) on the left side is connected to the right side portion of the support plate (15). A lower block (19) is fixedly provided at the lower end of the right side of the support plate (15), a first guide rod (20) is inserted into the second circular through hole of each lower block (19), an upper block (18) is fixedly provided at the upper end of the left side of the support plate (15) on the left and the upper end of the right side of the support plate (15) on the right, the top of each first guide rod (20) abuts against the bottom of the corresponding upper block (18), a first screw (21) is provided in the first circular through hole of each upper block (18), and each first screw (21) is threadedly connected to the first threaded hole at the top of the corresponding first guide rod (20); The "concave" opening of the lower pressing plate (4) faces backwards, and the front end of the support seat (2) is located in the "concave" opening of the lower pressing plate (4). The left and right sides of the rear side of the lower pressing plate (4) are both provided with third circular through holes. The two third circular through holes of the lower pressing plate (4) are respectively sleeved on the two first guide rods (20), and the lower pressing plate (4) is located between the upper block (18) and the lower block (19).

4. The test fixture for a combination lock circuit board according to claim 3, characterized in that: The second guide rods (22) are fixedly provided on the left and right sides of the top of the bottom plate (5), and the fourth circular through holes corresponding to the positions of the second guide rods (22) are provided on the left and right sides of the top of the lower pressure plate (4), and the lower pressure plate (4) is plugged onto the two second guide rods (22) through the two fourth circular through holes.