Air tightness and circuit on-off test equipment

Abstract

The invention provides air tightness and circuit on-off testing equipment, which comprises a main limiting block and a side limiting block, and is characterized in that the main limiting block is provided with a main limiting groove, and the main limiting groove is used for supporting and limiting a product main shell; the side limiting block is provided with a side limiting groove, and the side limiting groove is used for limiting and sealing a product socket. A pressing block for pressing the product main shell and the product socket is arranged above the main limiting block and the side limiting block, and is fixedly connected with a piston rod of the air cylinder; a plurality of groups of first detection pins are arranged in the main limiting groove, and a plurality of groups of second detection pins are arranged in the side limiting grooves; a detection air hole is formed in the side limiting block and connected to an air pump and an air pressure detection device. The device is used for rapidly and conveniently detecting the air tightness and circuit on-off of the automobile switch assembly connecting piece product.

Description

Technical Field

[0001] The invention relates to the field of injection molding tooling, and in particular to air tightness and circuit continuity testing equipment. Background Art

[0002] like Figure 1 and Figure 2 The automotive opening assembly connector product shown in the figure needs to be tested for air tightness and contact continuity by equipment after injection molding. Usually, multiple testing equipment is required, such as a leak meter and a PCBA board continuity test tool. The existing leak meter has high measurement accuracy, but the cost is very high and the efficiency is not high. It often requires stamping, pressure holding, and leak detection steps. A complete set of testing steps takes a long time, which is not cost-effective for product testing that does not require very high sealing. The PCBA board continuity test on the product needs to be tested using the existing standard workbench. The same product needs to be tested for air tightness and continuity. Using existing equipment for testing has cumbersome steps and low production efficiency. The non-airtightness of the pins, which are consumable parts on the product, increases the difficulty of air tightness testing. Therefore, it is necessary to invent a new air tightness and circuit continuity test equipment. Summary of the invention

[0003] The purpose of the present invention is to provide an air tightness and circuit continuity testing device for quickly and conveniently detecting the air tightness and circuit continuity of an automobile switch assembly connector product.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] A gas tightness and circuit continuity testing device comprises a main limit block and a side limit block, wherein the main limit block is provided with a main limit groove, and the main limit groove is used to support and limit a main shell of a product; the side limit block is provided with a side limit groove, and the side limit groove is used to limit and seal a product socket; a pressure block for pressing down the main shell of the product and the product socket is provided above the main limit block and the side limit block, and the pressure block is fixedly connected to the piston rod of a cylinder; a plurality of groups of first detection pins are provided in the main limit groove, and a plurality of groups of second detection pins are provided in the side limit groove; a detection air hole is provided on the side limit block, and the detection air hole is connected to an air pump and an air pressure detection device.

[0006] Preferably, in combination with the above solution, a plurality of groups of main fixing bosses are provided in the main limiting groove, and the first detection pin is vertically fixedly connected to the main fixing bosses.

[0007] Preferably, in combination with the above solution, a side fixing boss is provided in the middle of the side limiting groove, the second detection pin is vertically fixedly connected to the side fixing boss, and the detection air hole is also provided on the side fixing boss.

[0008] Preferably, in combination with the above solution, a sealing gasket is provided in the side limiting groove, and the sealing gasket is provided around the side fixing boss.

[0009] Preferably, in combination with the above solution, a avoidance notch is provided on a side of the main limit groove close to the side limit block, and the limit notch is used to avoid the product connection part.

[0010] Preferably, in combination with the above solution, support columns are fixedly connected to the four corners of the main limit block.

[0011] Preferably, in combination with the above scheme, the device also includes a base, support plates are fixedly connected to both sides of the base, and a connecting plate is fixedly connected above the support plate; the main limit block and the side limit block are fixedly connected to the base, and the outer shell of the cylinder is fixedly connected to the connecting plate.

[0012] Preferably, in combination with the above scheme, a plurality of groups of guide rods are movably connected to the connecting plate, the lower ends of the guide rods and the cylinder piston rods are fixedly connected to a fixing seat, and the pressure block is fixedly connected to the lower end of the fixing seat.

[0013] Preferably, in combination with the above scheme, a main limiting boss and a side limiting boss are provided at the lower end of the pressing block; the main limiting boss is used to press down the main shell of the limiting product, and the side limiting boss is used to press down the socket of the limiting product.

[0014] Preferably, in combination with the above solution, a third detection pin is vertically fixedly connected to the pressing block.

[0015] Beneficial effects of the present invention: The present invention, by setting a limit structure and a first detection pin and a third detection pin in the main limit block, and a limit sealing structure and a second detection pin in the side limit block, cooperates with an air pump and an air pressure detection device and an existing on-off circuit, and can conveniently complete the air-tightness detection while detecting on and off, thereby saving manpower and material resources and increasing work efficiency.

[0016] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the product in the present invention.

[0018] Figure 2 This is another structural diagram of the product of the present invention.

[0019] Figure 3 This is a diagram of the coordination structure of an air tightness and circuit continuity test device and a product of the present invention.

[0020] Figure 4This is a structural diagram of another direction of an air tightness and circuit continuity test device of the present invention.

[0021] Figure 5 This is a diagram of the matching structure of the main limit block and the side limit block in the present invention.

[0022] Figure 6 It is a structural diagram of the briquette in the present invention.

[0023] Among them, 1000. PCBA board; 1001. product main shell; 1002. product socket; 1003. product connection part; 1004. first contact; 1005. pin; 1006. second contact; 1. base, 2. support plate, 3. connecting plate; 4. cylinder; 5. guide rod; 6. fixing seat; 7. pressure block; 8. main limit block; 9. side limit block; 10. limit rod; 11. air pump; 12. air pressure detection device; 701. main limit boss, 702. side limit boss; 703. third detection pin; 801. main limit groove; 802. first detection pin; 803. main fixed boss; 804. avoidance groove; 805. support column; 901. side limit groove; 902. second detection pin; 903. detection air hole; 904. side fixed boss; 905. sealing gasket. DETAILED DESCRIPTION

[0024] like Figures 3 to 5 The air tightness and circuit continuity test device shown in the figure comprises a main limit block 8 and a side limit block 9. The main limit block 8 is provided with a main limit groove 801, and the main limit groove 801 is used to support and limit the main shell 1001 of the product; the side limit block 9 is provided with a side limit groove 901, and the side limit groove 801 is used to limit and seal the product socket 1002; a pressing block 7 for pressing down the main shell 1001 of the product and the product socket 1002 is provided above the main limit block 8 and the side limit block 9, and the pressing block 7 and the piston of the cylinder 4 The main limit slot 801 is fixedly connected with the first detection pin 802, which is used to contact the first contact 1004 on the lower surface of the PCBA board on the main shell 1001 of the product; the side limit slot 901 is provided with a plurality of second detection pins 902, which are used to contact the pin 1005 inside the product socket 1002; the side limit block 9 is provided with a detection air hole 903, and the detection air hole 903 is connected to the air pump 11 and the air pressure detection device 12. In this embodiment, the side limit block 9 is provided with an airway inside, and an air inlet is provided on one side of the side limit block 9, and the air inlet is connected to the air pipe and the air pump 11 in sequence. The air pump 11 is an air pump that can control the gas flow. The first detection pin 802 and the second detection pin 902 are both connected to the existing circuit board continuity test equipment through wires.

[0025] In order to better limit the main housing 1001 of the product on the main limit block 8, the main limit groove 801 is provided with several groups of main fixing bosses 803, and the first detection pin 802 is vertically fixedly connected to the main fixing boss 803. The main limit groove 801 can be provided with a step groove to limit the main housing 1001 of the product.

[0026] In order to facilitate the positioning of the outer shell of the product socket 1002 on the side fixing boss 904 and fix the second detection pin 902 to the required height so as to better contact the pin 1005 inside the product socket 1002, a side fixing boss 904 is provided in the middle of the side limiting groove 901, and the second detection pin 902 is vertically fixedly connected to the side fixing boss 904, and the detection air hole 903 is also located on the side fixing boss 904.

[0027] In order to better seal the lower opening of the product socket 1002, a sealing gasket 905 is provided in the side limiting groove 901, and the sealing gasket 905 is arranged around the side fixing boss 904. After the product socket 1002 is sleeved on the side fixing boss 904, the outer shell of the product socket 1002 is pressed down to achieve a better sealing effect.

[0028] In order to avoid interference when the product is placed on the main limit block 8 and the side limit block 9, a avoidance groove 804 is opened on the side of the main limit groove 801 close to the side limit block 9, and the limit groove 802 is used to avoid the product connection part 1003.

[0029] In order to facilitate raising the main limit block 8 to a desired height so as to better adapt to the structure of the product, support columns 805 are fixedly connected to the four corners of the main limit block 8 .

[0030] In order to facilitate the assembly of parts, the equipment also includes a base 1, and support plates 2 are fixedly connected to both sides of the base 1, and a connecting plate 3 is fixedly connected to the top of the support plate 2; the main limit block 8 and the side limit block 9 are fixedly connected to the base 1, and the outer shell of the cylinder 4 is fixedly connected to the connecting plate 3.

[0031] In order to ensure more stable up and down movement and facilitate the installation and fixation of the pressure block 7, several groups of guide rods 5 that can move up and down are connected to the connecting plate 3, and the lower end of the guide rod 5 and the lower end of the piston rod of the cylinder 4 are fixedly connected to a T-shaped fixing seat 6, and the pressure block 7 is fixedly connected to the lower end of the fixing seat 6.

[0032] In order to better press down the main housing 1001 of the product, the lower end of the pressing block 7 is provided with a main limiting boss 701 and a side limiting boss 702; the main limiting boss 701 is used to press down the main housing 1001 of the product, and the side limiting boss 702 is used to press down the socket 1002 of the product. In order to avoid interference with the raised structure on the main housing 1001 of the product, a plurality of avoiding groove structures are also provided on the main limiting boss 701 and the side limiting boss 702.

[0033] Since the PCBA board 1000 in this embodiment is a double-sided circuit board, conductive contacts are provided on the upper and lower surfaces of the circuit board, and a third detection pin 703 is vertically fixedly connected to the pressing block 7, and the third detection pin 703 is used to contact the second contact 1006 on the upper surface of the PCBA board. The third detection pin 703 is also connected to the existing circuit board continuity test equipment through a wire. The circuit board continuity test equipment can adopt the ICT_LT22 test system provided by Shenzhen Juheng Electronics Co., Ltd.

[0034] In order to better limit the vertical movement height of the pressing block 7 , two groups of limiting rods 10 are vertically fixedly connected to the upper end of the fixing seat 6 , and a certain height interval is set between the upper end surface of the limiting rod 10 and the lower end surface of the connecting plate 3 .

[0035] The use method and principle of the present invention:

[0036] When it is necessary to detect the air tightness of the product and the continuity of the PCBA board 1000, first place the product on the main limit block 8 and the side limit block 9, then start the cylinder 4 to press the product against the main limit block 8 and the side limit block 9, at this time, the sealing gasket 905 seals the lower end opening of the product socket 1002, and the air pump 11 starts to inject a certain flow of air, and the air enters the shell of the product socket 1002 from the detection air hole 903 through the pipeline, and the air pressure detection device 12 detects the air pressure in real time to detect the air tightness; at the same time, since the first detection pin 802 is in contact with the first contact 1004 on the lower surface of the PCBA board, the third detection pin 703 is in contact with the second contact 1006 on the upper surface of the PCBA board, and the second detection pin 902 is in contact with the pin 1005 inside the product socket 1002, the circuit board continuity test equipment can also detect the continuity state of the circuit board at the same time, greatly improving the product production efficiency. For this product, since it is not sealed, and the purpose of the test is to prevent the product from being sealed due to injection molding, the method of measuring pressure with a constant flow rate can quickly detect whether the product is qualified.

[0037] In the description of the present invention, it is necessary to understand that terms such as "upper", "lower", "front", "back", "left", "right", "bottom", "inside", "outside", "one end", "one side", "two ends", "both sides", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0038] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various improvements made by adopting the method concept and technical solution of the present invention, or directly applied to other occasions, they all fall within the protection scope of the present invention.

Claims

1. An air tightness and circuit continuity test device, characterized in that: The invention comprises a main limit block (8) and a side limit block (9); the main limit block (8) is provided with a main limit groove (801), and the main limit groove (801) is used to support and limit the main shell (1001) of the product; the side limit block (9) is provided with a side limit groove (901), and the side limit groove (801) is used to limit and seal the product socket (1002); and the main limit block (8) and the side limit block (9) are provided above the main limit block (8) and the side limit block (9) to press down the main shell (100 1) and a pressure block (7) of a product socket (1002), the pressure block (7) being fixedly connected to a piston rod of a cylinder (4); a plurality of groups of first detection pins (802) are arranged in the main limit groove (801), and a plurality of groups of second detection pins (902) are arranged in the side limit groove (901); a detection air hole (903) is arranged on the side limit block (9), and the detection air hole (903) is connected to an air pump (11) and an air pressure detection device (12).

2. The air tightness and circuit continuity test equipment according to claim 1 is characterized in that: A plurality of groups of main fixing bosses (803) are arranged in the main limiting groove (801), and the first detection pin (802) is vertically fixedly connected to the main fixing bosses (803).

3. The air tightness and circuit continuity test equipment according to claim 1 is characterized in that: A side fixing boss (904) is provided in the middle of the side limiting groove (901), the second detection pin (902) is vertically fixedly connected to the side fixing boss (904), and the detection air hole (903) is also provided on the side fixing boss (904).

4. The air tightness and circuit continuity test equipment according to claim 3 is characterized in that: A sealing gasket (905) is arranged in the side limiting groove (901), and the sealing gasket (905) is arranged around the side fixing boss (904).

5. The air tightness and circuit continuity test equipment according to claim 1 is characterized in that: A side of the main limiting groove (801) close to the side limiting block (9) is provided with an avoidance notch (804), and the limiting notch (802) is used to avoid the product connection part (1003).

6. The air tightness and circuit continuity test equipment according to claim 1 is characterized in that: Support columns (805) are fixedly connected at the four corners of the main limiting block (8).

7. The air tightness and circuit continuity test equipment according to claim 1 is characterized in that: The device also comprises a base (1), support plates (2) are fixedly connected to both sides of the base (1), and a connecting plate (3) is fixedly connected above the support plate (2); the main limit block (8) and the side limit block (9) are both fixedly connected to the base (1), and the outer shell of the cylinder (4) is fixedly connected to the connecting plate (3).

8. The air tightness and circuit continuity test equipment according to claim 7 is characterized in that: A plurality of guide rods (5) are movably connected to the connecting plate (3); the lower ends of the guide rods (5) and the piston rod of the cylinder (4) are fixedly connected to a fixing seat (6); and the pressing block (7) is fixedly connected to the lower end of the fixing seat (6).

9. The air tightness and circuit continuity test equipment according to claim 1, characterized in that: The lower end of the pressing block (7) is provided with a main limiting boss (701) and a side limiting boss (702); the main limiting boss (701) is used to press down the main housing (1001) of the limiting product, and the side limiting boss (702) is used to press down the socket (1002) of the limiting product.

10. The air tightness and circuit continuity test equipment according to claim 1, characterized in that: A third detection pin (703) is vertically fixedly connected to the pressing block (7).

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