Test fixture for universal automobile switch

Abstract

The utility model relates to a test fixture for a universal automobile switch, which comprises a base and an outer cover connected with the base, and a test cavity is formed between the outer cover and the base. The test cavity is internally provided with a test bench, a first driving part for driving the test bench to slide on the base, a mounting rack, a test probe and a second driving part for driving the test probe to do lifting motion, the test bench is provided with a detachable product placing rack, the first driving part is fixedly arranged on the base, an output shaft of the first driving part is connected with the test bench, and the second driving part is connected with the mounting rack. The test bench extends out of the test cavity or retracts into the test cavity under the action of the first driving part, the second driving part is detachably arranged on the lower end face of the mounting frame, and the test probe is arranged on an output shaft of the second driving part. By adopting the above technical scheme, the utility model provides the test fixture for the universal automobile switch, which is suitable for the detection of switches of various specifications, the test structure can be replaced according to different test requirements, and the universality is high.

Description

Technical Field

[0001] The utility model relates to the technical field of test fixtures, in particular to a universal test fixture for automobile switches. Background Art

[0002] Nowadays, with the rapid development of science and technology, the device used to fix the processing object in the mechanical manufacturing process so that it occupies the correct position to accept construction or inspection is also called a fixture. In a broad sense, any device used to quickly, conveniently and safely install the workpiece in any process in the process can be called a fixture, such as welding fixtures, inspection fixtures, assembly fixtures, machine tool fixtures, etc.

[0003] Automotive switches are part of the automotive industry. With the rapid development of the automotive industry, automotive switches are also constantly being improved and upgraded. In the manufacturing process of automotive switches, it is necessary to power on the product to test its various electrical properties. Among them, the most prominent problem is that the use of elastic probes to power on the product pins cannot meet the requirements of rapid, convenient, fast and safe testing. In order to solve this problem and to meet the test process requirements of the automated production line for automotive electronic switch products, it is necessary to design a specially designed fixture to fix the product.

[0004] Conventional fixtures include a base and a cover plate. The base is provided with a product placement area. The product to be tested is placed in the placement area. The cover plate is provided with a cylinder. An elastic power-on probe is provided at the end of the cylinder. The cover plate and the base are integrally provided. The output shaft of the cylinder is extended or retracted to drive the probe to descend or ascend. When the probe descends, it contacts the product to perform a power-on test. However, the size of the product placement area of ​​the above fixture cannot be changed, resulting in the testing of only one specification of switches. Moreover, the placement and removal of the switch is done manually, and it is necessary to reach into the interior for placement and retrieval, which is very inconvenient and affects the test efficiency. Summary of the invention

[0005] Purpose of the utility model: In order to overcome the defects of the prior art, the utility model provides a universal test fixture for automobile switches, which is suitable for detecting switches of various specifications and can also replace the test structure according to different test requirements, and has high versatility.

[0006] The technical solution of the utility model: a universal test fixture for automobile switches, comprising a base and an outer cover connected to the base, a test cavity being formed between the outer cover and the base, a test bench, a first drive member driving the test bench to slide on the base, a mounting frame, a test probe and a second drive member driving the test probe to perform lifting movements are arranged in the test cavity, a detachable product placement rack is arranged on the test bench, the first drive member is fixedly arranged on the base, the output shaft of the first drive member is connected to the test bench, the test bench extends out of the test cavity or retracts into the test cavity under the action of the first drive member, the second drive member is detachably arranged on the lower end surface of the mounting frame, the test probe is arranged on the output shaft of the second drive member, and descends or ascends under the action of the second drive member, and when the test bench is located below the mounting frame under the action of the first drive member, the test probe and the product placement rack are arranged relative to each other.

[0007] By adopting the above technical solution, the first driving member drives the test bench to extend out of the test cavity, the external manipulator clamps the product to be tested onto the product placement rack, the second driving member drives the test bench to retract, and the test bench returns to the bottom of the mounting rack, the second driving member drives the probe to descend and contact the product, thereby testing the product, and after the test is completed, the test bench extends out of the test cavity under the action of the first driving member, the manipulator removes the tested product and replaces it with a new product, the test efficiency is high, and no manual placement is required, and at the same time, the placement rack and the second driving member can be detachably connected, and can be replaced according to the specifications of the test product, the versatility is high, and it is not limited to the testing of switch products, but can also be used for testing products such as cover.

[0008] Further configuration of the utility model: a plurality of first mounting holes are evenly distributed on the test bench, a second mounting hole is provided on the lower end surface of the product placement rack, the second mounting hole is coaxial with the first mounting hole, and a first fastener is passed through to mount the product placement rack on the test bench.

[0009] By adopting the above further configuration, different product placement racks can be replaced according to the specifications of the tested products, and products of different specifications and sizes can be tested, not limited to products of one specification, and the practicability is high.

[0010] The utility model is further configured as follows: a plurality of third mounting holes are evenly distributed on the mounting frame, a second fastener is mounted on the second driving member, and the second fastener is passed through the third mounting holes to mount the second driving member on the mounting frame.

[0011] By further configuring as described above, the position of the second driving member on the mounting frame can be changed according to the test product, which has high versatility and is suitable for testing different products.

[0012] The utility model is further configured as follows: the test bench is provided with a positioning assembly for positioning the product, the positioning assembly includes at least two rotating cylinders and positioning members arranged on the rotating cylinders, the rotating cylinder is provided with a third fastener, the third fastener is passed through the first mounting hole to mount the rotating cylinder on the test bench, and the rotating cylinder is located on the periphery of the product placement rack.

[0013] With the above-mentioned further arrangement, after the product is placed on the product placement rack, the rotary cylinder drives the positioning piece to rotate, and the positioning piece is pressed on the product to position the product to prevent it from moving during testing and affecting the test results. After the test is completed, the rotary cylinder drives the positioning piece to rotate in the opposite direction, and the positioning piece is separated from the product to facilitate product removal. The rotary cylinder can change its position on the test bench according to the size of the product placement rack.

[0014] The utility model is further configured as follows: the base is provided with a plurality of support rods and a third driving member for driving the mounting frame to perform lifting movement; two third driving members are provided, which are respectively located on both sides of the mounting frame; each support rod corresponds to the four corners of the mounting frame; a plurality of positioning columns are provided on the lower end surface of the mounting frame; corresponding positioning holes are provided on the test bench; when the mounting frame is lowered, the positioning columns are inserted into the corresponding positioning holes.

[0015] With the above further arrangement, after the third driving member drives the mounting frame to descend, the mounting frame abuts against the support rod to support the mounting frame, and the positioning column is inserted into the positioning hole to position the test bench. During testing, the positioning table structure is stable and the test effect is good.

[0016] The utility model is further configured as follows: a magnet is provided at the end of the test bench, and a magnetic induction switch is provided on the base. When the test bench slides into the test cavity, the magnetic induction switch senses the magnet, and the third driving member and the second driving member are started.

[0017] The above further configuration is safer and the test is more accurate. After the magnetic induction switch senses the magnet, the third drive member is started, the mounting frame is lowered, the positioning column is inserted into the positioning hole, and at the same time the second drive member is started, the test probe is lowered, and contacts the product for testing.

[0018] The utility model is further configured as follows: the base is provided with a first guide rail and a second guide rail which are arranged opposite to each other, a first slider and a second slider are slidably provided on the first guide rail and the second guide rail, and both sides of the test bench are detachably connected to the first slider and the second slider.

[0019] By adopting the above-mentioned further arrangement, the structure of the test bench is stable when it slides, and the test bench can be replaced. Different test benches can be replaced according to the test products, which is highly practical.

[0020] The utility model is further configured as follows: a mounting groove is provided on the upper end surface of the outer cover, a detachable surface cover is provided in the mounting groove, and the surface cover is transparent.

[0021] The above further configuration is adopted to facilitate viewing of the internal conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a specific embodiment of the utility model;

[0023] Figure 2 It is a schematic diagram of a test bench and a first driving member of a specific embodiment of the utility model;

[0024] Figure 3 It is a schematic diagram of a positioning assembly according to a specific embodiment of the utility model;

[0025] Figure 4 for Figure 3 A magnified view of part A;

[0026] Figure 5 It is a schematic diagram of a mounting frame of a specific embodiment of the utility model;

[0027] Figure 6 This is a schematic diagram of the installation of a test probe according to a specific embodiment of the utility model. DETAILED DESCRIPTION

[0028] The technical scheme in this embodiment will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] It should be noted that in the description of the present invention, all directional indications (such as up, down, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0030] In addition, the descriptions of "first", "second", etc. in the present invention are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. In the description of the present invention, the meaning of "several" is at least two, such as two, three, etc., unless otherwise clearly and specifically limited.

[0031] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that technical personnel in this field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0032] like Figure 1-6 As shown, a universal automobile switch test fixture comprises a base 1 and an outer cover 2 connected to the base 1, a controller is arranged outside the base 1, each driving member is electrically connected to the controller, the driving member is arranged by a cylinder, a test cavity is formed between the outer cover 2 and the base 1, a test table 3, a first driving member 4 driving the test table 3 to slide on the base 1, a mounting frame 5, a test probe 6 and a second driving member 7 driving the test probe 6 to perform a lifting movement are arranged in the test cavity, a detachable product placement rack 31 is arranged on the test table 3, the first driving member 4 is fixedly arranged on the base 1, the output shaft of the first driving member 4 is connected to the test table 3, the test table 3 extends out of the test cavity or retracts into the test cavity under the action of the first driving member 4, the second driving member 7 is detachably arranged on the lower end surface of the mounting frame 5, the test probe 6 is arranged on the output shaft of the second driving member 7, and the test probe 6 is arranged on the output shaft of the second driving member 7. When the test bench 3 is lowered or raised, and is located below the mounting frame 5 under the action of the first driving member 4, the test probe 6 is arranged opposite to the product placement frame 31, and the first driving member 4 drives the test bench 3 to extend out of the test cavity, and the external manipulator clamps the product to be tested to the product placement frame 31, and the first driving member 4 drives the test bench 3 to retract, and the test bench 3 returns to the bottom of the mounting frame 5, and the second driving member 7 drives the test probe 6 to descend and contact the product, thereby testing the product. After the test is completed, the test bench 6 extends out of the test cavity under the action of the first driving member 4, and the manipulator removes the tested product and replaces it with a new product. The test efficiency is high and no manual placement is required. At the same time, the placement frame 31 and the second driving member 7 can be detachably connected and can be replaced according to the specifications of the test product. It is highly universal and is not limited to the testing of switch products, but can also be used for testing products such as cover. The base 1 is provided with a first guide rail 13 and a second guide rail 14 which are arranged opposite to each other. A first slider 131 and a second slider 141 are slidably arranged on the first guide rail 13 and the second guide rail 14. Both sides of the test bench 3 are detachably connected to the first slider 131 and the second slider 141. The structure of the test bench 3 is stable when it slides. The test bench can be replaced. Different test benches can be replaced according to the test product, which is highly practical. The upper end surface of the outer cover 2 is provided with a mounting groove, and a detachable cover 9 is provided in the mounting groove. The cover 9 is transparent, which is convenient for checking the internal situation.

[0033] A plurality of first mounting holes 32 are evenly distributed on the test bench 3, and a second mounting hole is provided on the lower end face of the product placement rack 31. The second mounting hole is coaxial with the first mounting hole 32, and a first fastener is passed through to mount the product placement rack 31 on the test bench 3. Different product placement racks can be replaced according to the specifications of the test product. Products of different specifications and sizes can be tested, and are not limited to products of one specification. The practicability is high. The test bench 3 is provided with a positioning component for positioning the product, and the positioning component includes at least two rotating cylinders 81 and a positioning piece 82 arranged on the rotating cylinder 81. The rotating cylinder 81 is provided with a third fastener, and the third fastener is inserted into the first mounting hole 32 to mount the rotating cylinder 81 on the test bench 3. The rotating cylinder 81 is located at the outer periphery of the product placement rack 31. After the product is placed on the product placement rack 31, the rotating cylinder 81 drives the positioning piece 82 to rotate, and the positioning piece 82 is pressed on the product to position the product to prevent it from moving during testing and affecting the test results. After the test is completed, the rotating cylinder 81 drives the positioning piece 82 to rotate in the opposite direction, and the positioning piece 82 is separated from the product to facilitate the removal of the product. The rotating cylinder 81 can change its position on the test bench 3 according to the size of the product placement rack.

[0034] The mounting frame 5 is evenly distributed with a plurality of third mounting holes 51, and the second driving member 7 is installed with a second fastener, which is inserted into the third mounting hole 51 to mount the second driving member 7 on the mounting frame 5. The position of the second driving member 7 on the mounting frame 5 can be changed, and the position can be changed according to the test product. The versatility is high and it is suitable for testing different products. The base 1 is provided with a plurality of support rods 11 and a third driving member 12 that drives the mounting frame 5 to move up and down. There are two third driving members 12, which are respectively located on both sides of the mounting frame 5. Each support rod 11 corresponds to the four corners of the mounting frame 5. The lower end surface of the mounting frame 5 is provided with a plurality of positioning columns 52. The test bench 3 is correspondingly provided with positioning holes 33. When the mounting frame 5 descends, the positioning columns 52 are inserted into the corresponding positioning holes 33. After the third driving member 12 drives the mounting frame 5 to descend, the mounting frame 5 abuts against the support rods 11 to support the mounting frame 5, and the positioning columns 52 are inserted into the positioning holes 33 to position the test bench 3. During the test, the positioning table structure is stable and the test effect is good.

[0035] A magnet is provided at the end of the test bench 3, and a magnetic induction switch is provided on the base 1. When the test bench 3 slides into the test cavity, the magnetic induction switch senses the magnet, and the third driving member 12 and the second driving member 7 are started, which is safer and the test is more accurate. After the magnetic induction switch senses the magnet, the third driving member 12 is started, the mounting frame 5 descends, and the positioning column 52 is inserted into the positioning hole 33. At the same time, the second driving member 7 is started, and the test probe 6 descends to contact the product for testing. A circuit board electrically connected to the controller is provided on the base 1, and the magnetic induction switch is connected to the circuit board.

Claims

1. A universal automotive switch test fixture, characterized in that: The invention comprises a base (1) and an outer cover (2) connected to the base (1), wherein a test cavity is formed between the outer cover (2) and the base (1), wherein a test table (3), a first driving member (4) driving the test table (3) to slide on the base (1), a mounting frame (5), a test probe (6), and a second driving member (7) driving the test probe (6) to move up and down are arranged in the test cavity, wherein a detachable product placement frame (31) is arranged on the test table (3), wherein the first driving member (4) is fixedly arranged on the base (1), wherein an output shaft of the first driving member (4) is connected to the test table (3), wherein the test table (3) extends out of the test cavity or retracts into the test cavity under the action of the first driving member (4), wherein the second driving member (7) is detachably arranged on the lower end surface of the mounting frame (5), wherein the test probe (6) is arranged on the output shaft of the second driving member (7), and descends or ascends under the action of the second driving member (7), and when the test table (3) is located below the mounting frame (5) under the action of the first driving member (4), the test probe (6) and the product placement frame (31) are arranged relative to each other.

2. The universal automobile switch test fixture according to claim 1, characterized in that: A plurality of first mounting holes (32) are evenly distributed on the test bench (3), and a second mounting hole is provided on the lower end surface of the product placement rack (31), the second mounting hole is coaxial with the first mounting hole, and a first fastener is passed through to mount the product placement rack (31) on the test bench (3).

3. The universal automobile switch test fixture according to claim 1 or 2, characterized in that: The mounting frame (5) is evenly distributed with a plurality of third mounting holes (51), the second driving member (7) is mounted with a second fastener, and the second fastener is inserted into the third mounting holes (51) to mount the second driving member (7) on the mounting frame (5).

4. The universal automobile switch test fixture according to claim 2, characterized in that: The test bench (3) is provided with a positioning assembly (8) for positioning the product. The positioning assembly (8) comprises at least two rotating cylinders (81) and positioning members (82) arranged on the rotating cylinders (81). The rotating cylinders (81) are provided with a third fastener, which is inserted into the first mounting hole (32) to mount the rotating cylinders (81) on the test bench (3). The rotating cylinders (81) are located on the periphery of the product placement rack (31).

5. The universal automobile switch test fixture according to claim 3, characterized in that: The base (1) is provided with a plurality of support rods (11) and a third driving member (12) for driving the mounting frame (5) to move up and down. Two third driving members (12) are provided and are respectively located on both sides of the mounting frame (5). Each support rod (11) corresponds to four corners of the mounting frame (5). The lower end surface of the mounting frame (5) is provided with a plurality of positioning columns (52). The test bench (3) is provided with corresponding positioning holes (33). When the mounting frame (5) is lowered, the positioning columns (52) are inserted into the corresponding positioning holes (33).

6. The universal automobile switch test fixture according to claim 5, characterized in that: A magnet is provided at the end of the test bench (3), and a magnetic induction switch is provided on the base (1); when the test bench (3) slides into the test cavity, the magnetic induction switch senses the magnet, and the third driving member (12) and the second driving member (7) are started.

7. The universal automobile switch test fixture according to claim 4, characterized in that: The base (1) is provided with a first guide rail (13) and a second guide rail (14) which are arranged opposite to each other, a first slider (131) and a second slider (132) are slidably provided on the first guide rail (13) and the second guide rail (14), and two sides of the test bench (3) are detachably connected to the first slider (131) and the second slider (132).

8. The universal automobile switch test fixture according to claim 7, characterized in that: The upper end surface of the outer cover (2) is provided with a mounting groove, and a detachable surface cover (9) is provided in the mounting groove. The surface cover (9) is transparent.

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