A test fixture suitable for circular LED lamps

Abstract

The application relates to the field of LED lamp testing, in particular to a testing fixture suitable for a circular LED lamp, which comprises a base, a clamping jaw and a testing assembly. A circular LED lamp panel is placed on the base in a region to be processed and tested, a supporting block is pushed, so that the supporting block supports the circular LED lamp panel horizontally, and in the process of supporting the circular LED lamp panel by the supporting block, the clamping jaw is turned over, so that the clamping jaw and the base jointly form a clamping action on the base, thereby preventing the circular LED lamp panel from being displaced in the vertical direction, and the testing assembly processes and tests the supported and clamped LED lamp panel, thereby reducing the possibility of inaccurate LED lamp panel testing and processing. The application solves the problem that the existing testing fixture is difficult to realize stable clamping and supporting of a circular LED lamp holder, thereby being inconvenient for production and testing work of the circular LED lamp.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of LED lamp testing, in particular to a test fixture suitable for circular LED lamps. BACKGROUND

[0002] A fixture is a general tool for woodworking, blacksmithing, and other handicrafts, mainly as a tool to assist in controlling position or action (or both). Test fixtures belong to a category of fixtures, which are used to test, test the functions, power calibration, service life, performance, etc. of products. Because it is mainly used for testing various indicators of products on the production line, it is called a test fixture.

[0003] LED lamp, also known as LED, is a light-emitting diode that can convert electrical energy into visible light. It is a new type of green environmental protection light source with the characteristics of high efficiency, energy saving, green environmental protection, color change and super long life, which is used in many fields. The production process of LED lamp is usually to fix the semiconductor material chip on the support with silver or white glue, then connect the chip and circuit board with silver or gold wire, then seal the periphery with epoxy resin to protect the internal core wire, and finally install the shell.

[0004] The existing Chinese patent with publication number "CN213957577U" is named "LED lamp test fixture convenient to clamp", which discloses the functions of threaded rod, movable sleeve, support seat, roller, rolling guide groove, guide rod, spring, push block, movable plate, support rod, L-shaped clamping seat and protective pad. When the LED lamp panel needs to be processed and tested, the L-shaped clamping plate will move towards the LED lamp panel, thereby forming a clamping to the LED lamp panel, thereby solving the problem of inconvenient clamping of the existing LED lamp test fixture to the circuit board, reducing the test efficiency and bringing inconvenience to people.

[0005] For the above-mentioned related technology, only rectangular LED lamp panels can be clamped. When clamping a circular LED lamp panel, only one point on the clamping plate will be tangent to the circular LED lamp panel to resist the circular LED lamp panel. Although the above-mentioned related technology solves the problem of inconvenient clamping of the existing LED lamp test fixture to the circuit board, for circular LED lamps, the existing test fixture is difficult to achieve stable clamping and support of the circular LED lamp seat, thereby making it inconvenient to test the production of circular LED lamps. SUMMARY

[0006] In order to solve the problem that the existing test fixture is difficult to achieve stable clamping and support of the circular LED lamp seat, thereby making it inconvenient to test the production of circular LED lamps, the present application provides a test fixture suitable for circular LED lamps.

[0007] The testing fixture for the circular LED lamp provided in the application adopts the technical scheme as follows:

[0008] The testing fixture for the circular LED lamp comprises:

[0009] The base is slidably connected with a support block, the support block is fixedly connected with two parallel support rods, the support rods are used to abut against the LED lamp panel, an elastic telescopic rod is arranged between the two support rods, the maximum length of the elastic telescopic rod is greater than the length of the support rod, the minimum length of the elastic telescopic rod is less than the length of the support rod, one end of the elastic telescopic rod is fixed on the support block, and the other end of the elastic telescopic rod is used to abut against the LED lamp panel.

[0010] The testing assembly comprises a telescopic cylinder, a testing block and a testing needle, the base is fixedly connected with a rack, the telescopic cylinder is fixedly connected on the rack, the testing block is fixedly connected on the telescopic cylinder, and the testing needle is fixedly connected on the testing block.

[0011] By adopting the above technical scheme, in the process of producing the circular LED lamp, the LED lamp panel is also circular, after the circular LED lamp panel is transmitted to the designated position, the support block is pushed towards the direction of the LED lamp panel, the elastic telescopic rod on the support block first contacts the LED lamp panel, the support block is continuously pushed, the elastic telescopic rod is compressed towards the direction of the support block, at this time, the two support rods clamp the LED lamp panel, and at this time, the support rod and the elastic telescopic rod have three supporting points for the LED lamp panel, at this time, the testing assembly tests the LED lamp panel, so that the LED lamp panel can be more stable during the testing process, thereby solving the problem that the existing testing fixture is difficult to stably support the circular LED lamp holder, thereby being inconvenient for the production and testing work of the circular LED lamp.

[0012] Optionally, a clamping claw is further arranged, the clamping claw is rotatably connected between the two support rods, the rotation axis of the clamping claw is horizontally arranged and perpendicular to the support rods, one end of the clamping claw is rotatably connected with a sliding shaft, the sliding shaft is vertically slidably connected on the elastic telescopic rod, and when the elastic telescopic rod is shortened, the clamping claw can be pressed on the LED lamp panel.

[0013] By adopting the above technical scheme, while the elastic support rod moves to support the LED lamp panel, the clamping claw on the elastic telescopic rod can clamp the upper surface of the LED lamp panel by being compressed with the elastic telescopic rod, at this time, the LED lamp panel is not only supported on the side surface, but also clamped on the upper surface edge, so that the LED lamp panel is more stable during the machining and testing process.

[0014] Optionally, the support rod and the elastic telescopic rod are connected by a flexible piece at one end away from the support block.

[0015] By adopting the above technical scheme, the flexible piece is in contact with the edge of the LED lamp plate during clamping of the support rod and the elastic telescopic rod, so that the friction force on the edge of the LED lamp plate is increased, and the closer the support rod is to the LED lamp plate, the greater the friction force on the LED lamp plate, and the more stable the resistance.

[0016] Optionally, the elastic telescopic rod comprises a spring, a connecting block and a connecting rod, one end of the spring is connected to the support block, the other end of the spring is connected to the connecting block, the connecting block is located between the connecting rod and the spring, a sliding groove is vertically formed in the connecting block, and the sliding shaft slides in the sliding groove.

[0017] By adopting the above technical scheme, when the elastic telescopic rod is in contact with the LED lamp plate, the elastic telescopic rod shrinks, at this time, the elastic telescopic rod moves relative to the two support rods, the connecting block moves with the clamping claw to the direction of the support block, at this time, the sliding shaft drives the clamping claw to move upward, so that the clamping claw can be flipped.

[0018] Optionally, the clamping claw is divided into a first clamping section and a second clamping section, the first clamping section is rotatably connected to the connecting block, the other end of the first clamping section is connected to the second clamping section, and when the first clamping section is in a vertical state, the second clamping section is in an inclined downward bent state.

[0019] By adopting the above technical scheme, the clamping claw is provided in two sections, the two sections of the clamping claw enable the clamping claw to clamp the upper surface of the LED lamp plate without rotating by a large angle, and the clamping claw occupies less space, so that the clamping claw can better clamp the LED lamp plate.

[0020] Optionally, the outer surface of the second clamping section is provided with a buffer layer.

[0021] By adopting the above technical scheme, the buffer layer is provided, so that the clamping claw can keep the LED lamp plate stable during contact with the LED lamp plate, and the possibility of damaging the LED lamp plate is further reduced.

[0022] Optionally, a sliding groove is formed in the base, and a sliding block is fixedly connected to the bottom of the adjusting seat and slides in the sliding groove.

[0023] By adopting the above technical scheme, the sliding groove is arranged on the base, and the bottom of the adjusting seat is fixedly connected with the sliding block, so that the adjusting seat can slide on the base more smoothly.

[0024] Optionally, an electric telescopic rod is arranged at one end of the support block away from the LED lamp panel, one end of the electric telescopic rod is fixedly connected to the support block, the other end of the electric telescopic rod is fixedly connected with a fixed block, the fixed block is fixedly connected to the base, a pressure sensor is fixedly connected to the fixed block, and the pressure sensor is used to monitor the pressure between the support rod and the LED lamp panel.

[0025] By adopting the above technical scheme, the electric telescopic rod and the pressure sensor are arranged, so that the length of the electric telescopic rod is adjusted according to the pressure of the LED lamp panel on the support rod, and then the adjusting length of the support rod on the LED lamp panel is adjusted, so that the LED lamp panel is more stably supported and clamped, and the possibility of being damaged due to excessive pressure of the support rod is reduced.

[0026] In summary, the present application has at least one of the following beneficial technical effects:

[0027] 1. By arranging the base, the support block, the support rod, the clamping claw and the test assembly, when the processed test LED lamp is circular, the LED lamp panel is also circular. When the circular LED lamp panel enters the area to be processed and tested, the support block moves towards the direction of the LED lamp panel. The elastic telescopic rod will preferentially abut against the circular LED lamp panel. The circular LED lamp panel generates pressure on the elastic telescopic rod, so that the elastic telescopic rod shrinks. The elastic telescopic rod that shrinks back and the two support rods are relatively displaced, so that the two support rods also abut against the LED lamp panel. One end of the LED lamp panel has three support points to abut against the LED lamp panel. At the same time, the relative position change of the elastic telescopic rod and the two support rods makes the clamping claw on the elastic telescopic rod clamp the LED lamp panel. The other side of the LED lamp panel only needs to use a common baffle to realize stable support of the LED lamp panel. The stable support of the LED lamp panel reduces the possibility of shaking or displacement of the LED lamp panel during the test work, so that the quality of the produced LED lamp panel is more stable, and to some extent, the problem that the existing test fixture is difficult to realize stable clamping and support of the circular LED lamp holder is solved, so that the production and test work of the circular LED lamp is not convenient.

[0028] 2. By connecting the two support rods and the elastic telescopic rod away from the support block through the flexible piece, the flexible piece is connected so that when the two support rods and the elastic telescopic rod are in contact with the LED lamp plate, the flexible piece will wrap the LED lamp plate, so that the friction between the LED lamp plate and the flexible piece is larger, further reducing the possibility of the LED lamp plate shaking in the subsequent processing test process;

[0029] 3. By dividing the clamping jaw into a first clamping section and a second clamping section, the clamping jaw can clamp the upper surface of the LED lamp plate without rotating too much angle, and the space occupied is smaller, so that the clamping jaw can better clamp the LED lamp plate. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a whole structure schematic diagram of a test fixture suitable for a circular LED lamp according to an embodiment of the present application.

[0031] Figure 2 is a structure schematic diagram of a test fixture suitable for a circular LED lamp according to an embodiment of the present application, which hides the base and the test assembly.

[0032] Figure 3 is a structure schematic diagram of an elastic telescopic rod according to an embodiment of the present application.

[0033] Figure 4 is a left view of Figure 1 .

[0034] Figure 5 is an A-A cross-sectional view of Figure 4 .

[0035] Figure 6 is a partial enlarged view of A in Figure 5 .

[0036] BRIEF DESCRIPTION OF DRAWINGS

[0037] 1, base; 2, test assembly; 21, telescopic cylinder; 22, test pressing block; 23, test needle; 3, support block; 4, support rod; 5, LED lamp plate; 6, elastic telescopic rod; 7, rack; 8, clamping jaw; 81, sliding shaft; 9, connecting rod; 10, flexible piece; 11, spring; 12, connecting block; 13, sliding groove; 14, first clamping section; 15, second clamping section; 16, sliding groove; 17, sliding block; 18, electric telescopic rod; 19, fixed block; 20, pressure sensor; 211, linkage rod. DETAILED DESCRIPTION

[0038] The present application will be further described below in conjunction with the accompanying drawings. Figures 1-6

[0039] ​The embodiment of the present application discloses a test fixture suitable for a circular LED lamp.

[0040] It should be noted that in the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0041] Referring to Figure 1 , Figure 2 and Figure 3 , a test fixture suitable for a circular LED lamp includes a base 1 and a test assembly 2, the base 1 is slidably connected with a support block 3, the support block 3 is fixedly connected with two support rods 4 and an elastic telescopic rod 6, when the circular LED lamp reaches the test area on the base 1 during production testing, the elastic telescopic rod 6 supports the LED lamp panel 5, after the LED lamp panel 5 is positioned and supported, the test assembly 2 starts to test the LED lamp panel 5, so that displacement or vibration does not occur during the testing of the LED lamp panel 5, to a certain extent, the problem that the existing test fixture is difficult to realize stable support of the circular LED lamp holder, thereby inconvenient for production testing of the circular LED lamp is solved.

[0042] Referring to Figure 1 , the base 1 is fixedly connected with a rack 7, the base 1 is used to place the LED lamp panel 5, and the test assembly 2 is connected to the rack 7.

[0043] Referring to Figure 2 and Figure 3 , the support block 3, the two support rods 4 and the elastic telescopic rod 6, the support block 3 is slidably connected to the base 1, the support rods 4 and the elastic telescopic rod 6 are fixedly connected to the support block 3, and in the state of not supporting the LED lamp panel 5, the length of the elastic telescopic rod 6 is greater than the length of the support rod 4, when the LED lamp panel 5 is in place, the support block 3 is pushed to approach the LED lamp panel 5, the elastic telescopic rod 6 is in contact with the LED lamp panel 5 first, the elastic telescopic rod 6 is compressed by the reaction force of the LED lamp panel 5, so that the elastic telescopic rod 6 and the support rod 4 are relatively displaced, when reaching a certain degree, the elastic telescopic rod 6 and the support rod 4 are in contact with the LED lamp panel 5, thereby realizing the support of the LED lamp panel 5, so that the LED lamp panel 5 is more unlikely to vibrate or displace during the machining and testing process, and the pass rate of the machined and tested LED lamp panel 5 is higher.

[0044] Referring to Figure 3And Figure 4 The clamping claw 8 is rotationally connected to the elastic telescopic rod 6, a linkage rod 211 is arranged between the clamping claw 8 and the supporting rod 4, when the elastic telescopic rod 6 supports the LED lamp plate 5, the clamping claw 8 will be flipped and together with the base 1 clamps the LED lamp plate 5, thereby reducing the possibility of the LED lamp plate 5 shaking during processing and testing.

[0045] With reference to Figure 3 , Figure 4 And Figure 5 The elastic telescopic rod 6 is provided with a spring 11 at one end close to the supporting block 3, and a connecting block 12 is fixedly connected at the other end away from the supporting block 3, the other end of the connecting block 12 is connected with a connecting rod 9, the clamping claw 8 is rotationally connected to the connecting block 12, and a sliding groove 13 is arranged in the connecting block 12, the bottom of the clamping claw 8 is rotationally connected with a sliding shaft 8, the sliding shaft can move up and down in the sliding groove 13, the linkage rod 211 is arranged in an "L shape" in the embodiment, one end of the linkage rod 211 is rotationally connected with the clamping claw 8, and the other end of the linkage rod 211 is rotationally connected with the supporting rod 4, in order to make the linkage rod 211 and the clamping claw 8 work more stably, the same linkage rod 211 is symmetrically arranged along the elastic telescopic rod 6.

[0046] With reference to Figure 3 And Figure 4 When the elastic telescopic rod 6 is contracted under the pressure of the LED lamp plate 5, the clamping claw 8 on the connecting block 12 is flipped under the action of the sliding groove 13 and the linkage rod 211, so that when the elastic telescopic rod 6 is contracted, the clamping claw 8 can be flipped to clamp the LED lamp plate 5 together with the base 1, and when the elastic telescopic rod 6 is reset, the clamping claw 8 can be flipped in the opposite direction to cancel the clamping effect on the LED lamp plate 5.

[0047] With reference to Figure 5 And Figure 6 The testing assembly 2 includes a telescopic cylinder 21, a testing pressing block 22 and a testing needle 23, the telescopic cylinder 21 is fixedly connected to the rack 7, the testing pressing block 22 is fixedly connected to the telescopic shaft of the telescopic cylinder 21, and the testing needle 23 is movably connected to the testing pressing block 22, the testing needle 23 can be adjusted in length according to different LED lamp plates 5, so as to ensure that the testing assembly 2 can adapt to as many LED lamp plates 5 as possible, and after the LED lamp plate 5 is clamped and stabilized by the supporting rod 4 and the clamping claw 8, the testing assembly 2 tests the LED lamp plate 5.

[0048] With reference to Figure 5 And Figure 6The support rods 4 are arranged in two groups, and the corresponding clamping claws 8 are also arranged in two groups, one-to-one correspondence between the two groups of support rods 4 and the two clamping claws 8, when the LED lamp panel 5 is in place, simultaneously driving the two groups of support rods 4 to support the LED lamp panel 5, thereby limiting the horizontal displacement of the LED lamp panel 5, while the two groups of support rods 4 support the LED lamp panel 5, the two clamping claws 8 are turned over and the base 1 is clamped together to clamp the LED lamp panel 5, thereby limiting the vertical displacement of the LED lamp panel 5, and further making the LED lamp panel 5 more stable during processing and testing.

[0049] With reference to Figure 3 And Figure 6 , the end of the support rod 4 and the elastic telescopic rod 6 is connected with a flexible piece 10, the flexible piece 10 can adopt a flexible material such as cloth with large friction, the setting of the flexible piece 10 makes the contact area of the support rod 4 with the LED lamp panel 5 larger, and the friction generated between the flexible piece 10 and the LED lamp panel 5 effectively reduces the possibility of displacement of the LED lamp panel 5 in the horizontal direction.

[0050] With reference to Figure 2 , the clamping claw 8 is arranged as a combination of the first clamping section 14 and the second clamping section 15, the first clamping section 14 is rotationally connected to the connecting block 12, and the first clamping section 14 and the second clamping section 15 are rotationally arranged in a "7" shape, so that the clamping claw 8 only needs to be flipped by a certain amount to realize clamping of the LED lamp panel 5 together with the base 1.

[0051] With reference to Figure 2 , the second clamping section 15 of the clamping claw 8 is provided with a buffer layer, because the flipping of the clamping claw 8 and the supporting of the support rod 4 are synchronous, and a certain impact force may be generated on the LED lamp panel 5 at the moment of flipping, the setting of the buffer layer effectively reduces the impact force generated during the clamping of the LED lamp panel 5 by the clamping claw 8, thereby avoiding the possibility of damage to the LED lamp panel 5 by the clamping claw 8.

[0052] With reference to Figure 2 And Figure 6 , the base 1 is provided with a sliding groove 16, and the bottom of the support block 3 is fixedly connected with a sliding block 17, the setting of the sliding groove 16 and the sliding block 17 makes the sliding of the support block 3 to the LED lamp panel 5 and away from it more smooth, effectively improving the supporting efficiency of the support rod 4 and the clamping claw 8 on the LED lamp panel 5.

[0053] With reference to Figure 5The electric telescopic rod 18 is driven by a motor, which is not shown in the embodiment of the present application. The other end of the electric telescopic rod 18 is fixedly connected with a fixed block 19. The fixed block 19 is fixedly connected with a pressure sensor 20. The pressure sensor 20 is used for monitoring the pressure between the LED lamp plate 5 and the supporting rod 4. After the LED lamp plate 5 is in place, the electric telescopic rod 18 pushes the supporting rod 4 to contact the LED lamp plate 5. At this time, the pressure sensor 20 starts to monitor the pressure between the LED lamp plate 5 and the supporting rod 4. When the pressure reaches a certain range, the electric telescopic rod 18 stops elongation, thereby reducing the possibility of damage to the LED lamp plate 5 caused by clamping.

[0054] The implementation principle of the test fixture suitable for the circular LED lamp is as follows: in the production process of the circular LED lamp, the LED lamp plate 5 is circular. After the LED lamp plate 5 is placed at the machining test position of the machine base 1, the supporting block 3 of the supporting rod 4 is pushed. The supporting block 3 drives the supporting rod 4 and the elastic telescopic rod 6 to slide forward. The elastic telescopic rod 6 is in contact with the circular LED lamp plate 5 in priority. After contacting the LED lamp plate 5, the elastic telescopic rod 6 shrinks. The shrunk elastic telescopic rod 6 moves relative to the supporting rod 4, so that the supporting rod 4 limits the horizontal displacement of the LED lamp plate 5. At the same time, the clamping jaw 8 is turned over. The clamping jaw 8 and the machine base 1 jointly clamp the LED lamp plate 5, thereby limiting the vertical displacement of the LED lamp plate 5. Then, the test assembly 2 processes and tests the LED lamp plate 5 supported and clamped, effectively reduces the possibility of vibration of the LED lamp plate 5, and to some extent, solves the problem that the existing test fixture is difficult to realize stable clamping and supporting of the circular LED lamp holder, thereby being inconvenient for the production and test of the circular LED lamp.

[0055] The above are the preferred embodiments of the present application, and do not limit the protection scope of the present application. Therefore, equivalent changes made on the basis of the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A test fixture suitable for circular LED lamps, characterized in that, It include base (1) and test assembly (2); The support block (3) is slidably connected to the base (1), two parallel support rods (4) are fixedly connected to the support block (3), the support rods (4) are used for abutting against the LED lamp plate (5), an elastic telescopic rod (6) is arranged between the two support rods (4), the maximum length of the elastic telescopic rod (6) is greater than the length of the support rod (4), the minimum length of the elastic telescopic rod (6) is less than the length of the support rod (4), one end of the elastic telescopic rod (6) is fixed to the support block (3), and the other end of the elastic telescopic rod (6) is used for abutting against the LED lamp plate (5); The test assembly (2) comprises a telescopic cylinder (21), a test pressing block (22) and a test needle (23), a rack (7) is fixedly connected to the base (1), the telescopic cylinder (21) is fixedly connected to the rack (7), the test pressing block (22) is fixedly connected to the telescopic cylinder (21), and the test needle (23) is fixedly connected to the test pressing block (22). A clamping claw (8) is further arranged between the two support rods (4) and is rotatably connected to the support rods (4), an axis of rotation of the clamping claw (8) is horizontally arranged and perpendicular to the support rods (4), one end of the clamping claw (8) is rotatably connected to a sliding shaft (81), the sliding shaft (81) is slidably connected to the elastic telescopic rod (6) in a vertical direction, and the clamping claw (8) can be pressed against the LED lamp plate (5) when the elastic telescopic rod (6) is shortened. The elastic telescopic rod (6) comprises a spring (11), a connecting block (12) and a connecting rod (9), one end of the spring (11) is connected to the support block (3), the other end of the spring (11) is connected to the connecting block (12), the connecting block (12) is located between the connecting rod (9) and the spring (11), a sliding groove (13) is vertically formed in the connecting block (12), and the sliding shaft (81) slides in the sliding groove (13). The clamping claw (8) comprises a first clamping section (14) and a second clamping section (15), the first clamping section (14) is rotatably connected to the connecting block (12), the other end of the first clamping section (14) is connected to the second clamping section (15), and the second clamping section (15) is in an inclined downwardly bent state when the first clamping section (14) is in a vertical state.

2. The test fixture for circular LED lamps of claim 1, wherein: The support rod (4) and the elastic telescopic rod (6) are connected through a flexible piece (10) at the end away from the support block (3).

3. The test fixture for circular LED lamps of claim 1, wherein: A buffer layer is arranged on the outer surface of the second clamping section (15).

4. The test fixture for circular LED lamps of claim 1, wherein: A sliding groove (16) is formed in the base (1), and a sliding block (17) is fixedly connected to the bottom of the support block (3) and slides in the sliding groove (16).

5. The test fixture for circular LED lamps of claim 1, wherein: The end of the support block (3) away from the LED lamp plate (5) is provided with an electric telescopic rod (18), one end of the electric telescopic rod (18) is fixedly connected on the support block (3), the other end of the electric telescopic rod (18) is fixedly connected with a fixed block (19), the fixed block (19) is fixedly connected on the machine base (1), a pressure sensor (20) is fixedly connected on the fixed block (19), and the pressure sensor (20) is used for monitoring the pressure between the support rod (4) and the LED lamp plate (5).

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