Special transparent pin length inspection jig

Abstract

The utility model relates to the technical field of circuit boards, and discloses a special transparent pin length inspection jig. The special transparent pin length inspection jig comprises a jig base, a first placement groove is formed in the inner side of the jig base, a guide rail is fixed to the top end of the jig base, and a sliding seat is clamped to the outer side of the guide rail. According to the utility model, the sliding seat, the fixed seat, the guide rail, the height limiting module and the detection plate are arranged, the fixed seat and the sliding seat are pushed to move on the guide rail, when the fixed seat moves to the height limiting module and the detection plate at the bottom end of the fixed seat, the circuit board below is detected, and the height limiting module and the detection plate slide once to realize the detection of all transparent pins; and in the detection process, if the height limiting module and the detection plate are stopped, the length of the transparent pin does not meet the requirement at the moment, attention needs to be paid, and the detection method can improve the accuracy and timeliness of special transparent pin length detection work on the premise that the precision is effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit boards, in particular to a special through-pin length inspection jig. Background Art

[0002] The names of circuit boards include: ceramic circuit board, alumina ceramic circuit board, aluminum nitride ceramic circuit board, circuit board, PCB board, aluminum substrate, high-frequency board, thick copper board, impedance board, PCB, ultra-thin circuit board, ultra-thin circuit board, printed circuit board, etc. Circuit boards miniaturize and visualize circuits, and play an important role in the mass production of fixed circuits and the optimization of electrical appliance layout. Circuit boards can be called printed circuit boards or printed circuit boards. The LEDs on some circuit boards have special structural designs. The LEDs need to be bent twice and soldered to the circuit board with a limited height. Due to the gap between the circuit board and the aluminum alloy casing, the length of the through-pin needs to be controlled below 1.3mm.

[0003] In the existing through-lead inspection on circuit boards, a height check block or height ruler is usually made, and the length of the special through-lead is controlled through visual comparison. However, due to the special length, visual inspection is prone to omissions. Therefore, a special through-lead length inspection fixture is urgently needed. Utility Model Content

[0004] The purpose of the present utility model is to provide a special through-leg length inspection jig to solve the problem that in the through-leg inspection on the existing circuit board proposed in the above background technology, a height inspection block or a height ruler is usually made, and the length of the special through-leg is controlled by visual comparison. However, due to the special length, omissions are prone to occur in visual inspection and long-term sliding contact between the height limit module and the circuit board will cause wear. Once wear occurs, the distance between the height limit module and the circuit board will increase, and then the detection result of the height limit module will have errors.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a special foot-through length inspection jig, comprising a jig base, a first placement slot is provided on the inner side of the jig base, and a guide rail is fixed to the top of the jig base, a sliding seat is engaged with the outer side of the guide rail, a fixed seat is fixed to the top of the sliding seat, a connecting plate is connected to one side of the fixed seat, a threaded rod is movably provided on the inner side of the connecting plate, a bearing is provided at the bottom end of the threaded rod, and a screw block is provided at the top end of the threaded rod, a detection plate is fixed to the bottom end of the bearing, a height limiting module is fixed to the bottom end of the connecting plate, a limiting plate is provided on one side of the height limiting module, a circuit board is engaged with the inner side of the first placement slot, and a second placement slot is provided at one end of the first placement slot, and a foot-through group is provided on the inner side of the second placement slot.

[0006] Preferably, a slider is provided on the inner side of the sliding seat, a sliding groove is provided on the outer wall of the guide rail, and the sliding seat and the guide rail are movably connected through the slider and the sliding groove.

[0007] Preferably, the number of the guide rails, sliding seats and fixed seats is two, and the fixed seat, sliding seat and fixture base are slidably connected via the guide rails.

[0008] Preferably, limiting rods are provided at both ends of the guide rail, and the number of the second placement slots is four.

[0009] Preferably, thread grooves are provided on the inner sides of the connecting plate and the height limiting module, and the threaded rod is movably connected to the connecting plate and the height limiting module through threads.

[0010] Preferably, the threaded rod is rotatably connected to the detection plate via a bearing, and the limit plate is fixed to the bottom end of the connecting plate.

[0011] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0012] First, the utility model sets a sliding seat, a fixed seat, a guide rail, a height limiting module and a detection plate, and pushes the fixed seat and the sliding seat to move on the guide rail. The fixed seat moves to, and the height limiting module and the detection plate at its bottom detect the circuit board below when moving. The height limiting module and the detection plate can realize the detection of all transparent feet with a single sliding. During the detection, if the height limiting module and the detection plate are stopped, the length of the transparent feet does not meet the requirements at this time. It should be noted that this detection method can improve the accuracy and timeliness of the special transparent foot length inspection work under the premise of effective accuracy assurance.

[0013] Secondly, the present invention is configured to drive the threaded rod to rotate by means of a screw block according to the detection spacing requirements between the detection plate and the circuit board in advance. When the threaded rod rotates, the bearing and the detection plate are driven to rotate. However, the detection plate can only move up and down under the height limit module through the bearing under the restriction of the limit plate, thereby realizing position adjustment. After the detection plate is worn, the spacing can be adjusted to always maintain a specified spacing with the circuit board, thereby ensuring the accuracy of the detection data. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the top view of the structure of the utility model;

[0016] Figure 3 This is a schematic diagram of a circuit board of the utility model;

[0017] Figure 4 For this utility model Figure 3 A is an enlarged schematic diagram;

[0018] Figure 5 This is a schematic diagram of the detection board of the utility model;

[0019] Figure 6 This is a schematic diagram of the bearing of the present utility model.

[0020] Among them: 1. fixture base; 2. first placement slot; 3. guide rail; 4. sliding seat; 5. fixed seat; 6. connecting plate; 7. threaded rod; 8. screw block; 9. bearing; 10. detection board; 11. height limit module; 12. limit plate; 13. circuit board; 14. foot assembly; 15. second placement slot. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figures 1-4A special fixture for testing the length of a transparent foot comprises a fixture base 1, a first placement groove 2 is provided on the inner side of the fixture base 1, and a guide rail 3 is fixed to the top of the fixture base 1, a sliding seat 4 is engaged with the outer side of the guide rail 3, a fixed seat 5 is fixed to the top of the sliding seat 4, and a connecting plate 6 is connected to one side of the fixed seat 5, a circuit board 13 is engaged with the inner side of the first placement groove 2, and a second placement groove 15 is provided at one end of the first placement groove 2, a transparent foot group 14 is provided on the inner side of the second placement groove 15, a slider is provided on the inner side of the sliding seat 4, a slide groove is provided on the outer wall of the guide rail 3, and the sliding seat 4 is movably connected to the guide rail 3 through the slider and the slide groove, the number of the guide rail 3, the sliding seat 4 and the fixed seat 5 is two, and the fixed seat 5, the sliding seat 4 and the fixture base 1 are slidably connected through the guide rail 3, and limiting rods are provided at both ends of the guide rail 3, and the number of the second placement groove 15 is four , the circuit board 13 is snap-fitted and placed in the first placement slot 2, and the transparent foot group 14 at the front end of the circuit board 13 is inserted into the second placement slot 15. At this time, the fixed seat 5 and the sliding seat 4 are pushed through the slider and the slide slot to move on the guide rail 3. The fixed seat 5 moves to, and the height limiting module 11 and the detection plate 10 at its bottom detect the circuit board 13 below when moving. The height limiting module 11 and the detection plate 10 can realize the detection of all transparent feet with a single sliding of the height limiting module 11 and the detection plate 10. During the detection, if the height limiting module 11 and the detection plate 10 are stopped, the length of the transparent feet does not meet the requirements at this time. It should be noted that this detection method can improve the accuracy and timeliness of the special transparent foot length inspection work under the premise of effective accuracy assurance. Compared with the traditional visual height inspection block or height gauge inspection, it is more suitable for large-scale product inspection and fast-paced assembly line production inspection.

[0023] See also Figure 5-Figure 6 A special foot length inspection fixture, the inner side of the connecting plate 6 is movably provided with a threaded rod 7, the bottom end of the threaded rod 7 is provided with a bearing 9, and the top of the threaded rod 7 is provided with a screw block 8, the bottom end of the bearing 9 is fixed with a detection plate 10, the bottom end of the connecting plate 6 is fixed with a limited height module 11, and a limit plate 12 is provided on one side of the height limit module 11. The inner sides of the connecting plate 6 and the height limit module 11 are provided with a threaded groove, and the threaded rod 7 is movably connected to the connecting plate 6 and the height limit module 11 through a thread, and the threaded rod 7 and the detection plate 10 rotate through the bearing 9 Connection, the limit plate 12 is fixed to the bottom end of the connecting plate 6. According to the detection spacing requirements between the detection plate 10 and the circuit board 13, the threaded rod 7 is driven to rotate by the screw block 8. When the threaded rod 7 rotates, the bearing 9 and the detection plate 10 are driven to rotate. However, under the restriction of the limit plate 12, the detection plate 10 can only move up and down under the height limit module 11 through the bearing 9, thereby realizing position adjustment, so that after wear, the detection plate 10 can always maintain a specified distance with the circuit board 13 by adjusting the spacing, thereby ensuring the accuracy of the detection data.

[0024] When in use, according to the detection spacing requirements between the detection plate 10 and the circuit board 13, the threaded rod 7 is driven to rotate by the screw block 8. When the threaded rod 7 rotates, the bearing 9 and the detection plate 10 are driven to rotate. However, under the restriction of the limit plate 12, the detection plate 10 can only move up and down under the height limit module 11 through the bearing 9, thereby realizing position adjustment, so that after the detection plate 10 is worn, the distance can be adjusted to always maintain a specified distance with the circuit board 13, thereby ensuring the accuracy of the detection data, the circuit board 13 is snap-fitted and placed in the first placement groove 2, and the transparent foot group 14 at the front end of the circuit board 13 is inserted into the second placement groove 15, at this time, the fixing seat 5 is pushed to The sliding seat 4 moves on the guide rail 3 through the slider and the slide groove, and the fixed seat 5 moves to, and the height limiting module 11 and the detection plate 10 at its bottom detect the circuit board 13 below when moving. The height limiting module 11 and the detection plate 10 can realize the detection of all transparent feet with a single sliding. During the detection, if the height limiting module 11 and the detection plate 10 are stopped, the length of the transparent feet does not meet the requirements at this time. It should be noted that this detection method can improve the accuracy and timeliness of the special transparent foot length inspection work under the premise of effective accuracy assurance. Compared with the traditional visual height inspection block or height gauge inspection, it is more suitable for large-scale product inspection and fast-paced assembly line production inspection.

[0025] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit thereof, and the scope is defined by the appended claims and their equivalents.

Claims

1. A special foot length inspection jig, comprising a jig base (1), characterized in that: A first placement groove (2) is provided on the inner side of the fixture base (1), and a guide rail (3) is fixed to the top of the fixture base (1), a sliding seat (4) is engaged on the outer side of the guide rail (3), a fixed seat (5) is fixed to the top of the sliding seat (4), a connecting plate (6) is connected to one side of the fixed seat (5), a threaded rod (7) is movably provided on the inner side of the connecting plate (6), a bearing (9) is provided at the bottom end of the threaded rod (7), and a screw block (8) is provided at the top end of the threaded rod (7), a detection plate (10) is fixed to the bottom end of the bearing (9), a height limiting module (11) is fixed to the bottom end of the connecting plate (6), a limit plate (12) is provided on one side of the height limiting module (11), a circuit board (13) is engaged on the inner side of the first placement groove (2), a second placement groove (15) is provided at one end of the first placement groove (2), and a foot assembly (14) is provided on the inner side of the second placement groove (15).

2. A special foot length inspection jig according to claim 1, characterized in that: A slider is provided on the inner side of the sliding seat (4), a sliding groove is provided on the outer wall of the guide rail (3), and the sliding seat (4) and the guide rail (3) are movably connected via the slider and the sliding groove.

3. The special foot length inspection jig according to claim 1, characterized in that: The number of the guide rail (3), the sliding seat (4) and the fixed seat (5) is two, and the fixed seat (5), the sliding seat (4) and the fixture base (1) are slidably connected via the guide rail (3).

4. The special foot length inspection jig according to claim 1, characterized in that: Limiting rods are provided at both ends of the guide rail (3), and the number of the second placement slots (15) is four.

5. The special foot-through length inspection jig according to claim 1, characterized in that: The inner sides of the connecting plate (6) and the height limiting module (11) are both provided with threaded grooves, and the threaded rod (7) is movably connected to the connecting plate (6) and the height limiting module (11) via threads.

6. The special foot-through length inspection jig according to claim 1, characterized in that: The threaded rod (7) and the detection plate (10) are rotatably connected via a bearing (9), and the limit plate (12) is fixed to the bottom end of the connecting plate (6).

Images