Air tightness detection tool for injection molded part

Abstract

The utility model discloses an injection molding part air tightness detection tool comprising a detection bench, the top of the detection bench is fixedly connected with four columns, the top ends of the four columns are fixedly connected with the same support bench, the support bench is connected with an installation box in a penetrating manner, and the installation box is internally provided with a detection mechanism; the detection mechanism comprises a [-shaped support fixedly connected to the inner wall of the bottom of the installation box, an air tightness detector is connected to the [-shaped support in a penetrating mode, and a detection opening of the air tightness detector is fixedly connected with a telescopic hose. According to the air tightness detection tool for the injection-molded part, through the arranged detection mechanism, when the detection air nozzle is inserted into the detection hole of the automobile injection-molded part, a plurality of sealing plugs are used at the same time to block and seal other inlets and outlets, so that air tightness detection on the automobile injection-molded part is facilitated, extra operation of processing personnel is not needed, and the detection efficiency is improved. Therefore, the overall detection efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molded parts detection, in particular to an injection molded parts air tightness detection tool. Background Art

[0002] During the production process of automobiles, most parts are processed by injection molding. Among them, some cylinder injection molding parts need to be tested for air tightness after processing to prevent minor defects during the injection molding process. The quality of air tightness directly affects whether the injection molding parts can work normally. Therefore, air tightness testing is a necessary process before leaving the factory for use. At this time, air tightness testing equipment is needed to test them.

[0003] Announcement No. CN 213842525 U discloses an air tightness detection device for an injection molded part of an automobile oil pump cover, comprising an operating table, a first electric cylinder is fixedly connected to the middle of the top of the operating table, a mounting plate is fixedly connected to the top of the first electric cylinder, a clamping mechanism is installed on the mounting plate, support columns are fixedly connected to both sides of the first electric cylinder on the top of the operating table, a position sensor is fixedly connected to the top inner side of the support column, a top plate is fixedly connected to the left side of the top of the support column, a gas boosting device is fixedly connected to the left side of the top of the top plate, an air tightness detector is fixedly connected to the middle of the top of the top plate, and the air tightness detector is connected to the gas boosting device through a ventilation pipe, a fixing mechanism is fixedly connected to the bottom of the air tightness detector penetrating the top plate, and the position of the fixing mechanism corresponds to the position of the bottom clamping mechanism, the device can be operated intelligently, reducing labor, and at the same time, the detection is accurate, the scope of application is large, and it is worthy of wide use.

[0004] However, the detection device has the following shortcomings: when the equipment performs airtightness detection on automobile injection molded parts, since some cylinder injection molded parts often have multiple inlets and outlets, the operator is often required to manually seal the other inlets and outlets during the airtightness detection, which is time-consuming and laborious.

[0005] To this end, the utility model provides an injection molded part air tightness detection tool to solve the above-mentioned problem. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides an injection molded part air tightness detection tooling to solve the above-mentioned problems.

[0007] To achieve the above purpose, the utility model is implemented by the following technical solutions: an injection molded part air tightness detection tool, including a detection table, the top of the detection table is fixedly connected with four columns, the tops of the four columns are fixedly connected with the same support table, the support table is penetrated and connected with an installation box, and the installation box is provided with a detection mechanism;

[0008] The detection mechanism includes a U-shaped bracket fixedly connected to the inner wall of the bottom of the installation box. A airtightness detector is connected through the U-shaped bracket. The detection port of the airtightness detector is fixedly connected with a telescopic hose. One end of the telescopic hose extends out of the installation box movably. Two symmetrically distributed extension rods are slidably inserted through the bottom of the installation box. The bottom ends of the two extension rods are fixedly connected with the same cover plate. A detection nozzle is connected through the cover plate. The detection nozzle is connected with the telescopic hose. A plurality of sealing plugs are arranged at the bottom of the cover plate.

[0009] Preferably, a partition board is fixedly connected in the installation box. Two symmetrically distributed long threaded rods are rotatably inserted through the partition board. Moving blocks are threadedly sleeved on the two long threaded rods respectively. The two moving blocks are respectively connected with the corresponding extension rods. By using the partition board, long threaded rods and moving blocks in cooperation, it can conveniently drive the extension rods to descend, so that the cover plate can be attached to the automotive injection molding part.

[0010] Preferably, a first driven gear is fixedly sleeved on the corresponding long threaded rod. A first motor is fixedly connected to the top of the partition board. The output shaft of the first motor is fixedly connected with a first driving gear. The first driving gear meshes with the first driven gear. Synchronous wheels are fixedly sleeved on the two long threaded rods respectively. The same synchronous belt is wound between the two synchronous wheels. By using the first driven gear, first motor, first driving gear, synchronous wheels and synchronous belt in cooperation, it can conveniently drive the two long threaded rods to rotate synchronously, which is convenient for operation.

[0011] Preferably, a bidirectional threaded rod is rotatably connected in the detection table. Two pressing plates are threadedly sleeved on the bidirectional threaded rod. The tops of the two pressing plates both extend out of the detection table slidably. Extension plates are fixedly connected to the tops of the two pressing plates. By using the bidirectional threaded rod, pressing plates and extension plates in cooperation, it can conveniently clamp and fix the automotive injection molding part, which is convenient for airtightness detection.

[0012] Preferably, a second driven gear is fixedly sleeved on the bidirectional threaded rod. A second motor is fixedly connected in the detection table. The output shaft of the second motor is fixedly connected with a second driving gear. The second driving gear meshes with the second driven gear. By using the second driven gear, second motor and second driving gear in cooperation, it can conveniently drive the bidirectional threaded rod to rotate, which is convenient for operation.

[0013] Preferably, two sliding rods are fixedly connected in the installation box. The two sliding rods respectively penetrate through the corresponding moving blocks slidably. By arranging the sliding rods, the moving blocks can be limited, so that they can lift smoothly.

[0014] Preferably, a positioning rod is fixedly connected inside the detection table, and the positioning rod slides through the two pressure plates. Two limit plates are fixedly sleeved on the positioning rod. The positioning rod and the limit plates can be used together to conveniently limit the pressure plate so that it can move smoothly.

[0015] Preferably, a first soft pad is fixedly connected to the top of the testing platform, and a second soft pad is fixedly connected to one side of the extension plate. The first soft pad and the second soft pad are used in combination to facilitate the placement of automotive injection molded parts and to facilitate clamping them to prevent them from detaching.

[0016] Beneficial Effects

[0017] The utility model provides a tool for testing the air tightness of injection molded parts. Compared with the prior art, it has the following beneficial effects:

[0018] (1) The air tightness testing tool for injection molded parts can use a plurality of sealing plugs to block and seal other inlets and outlets when the testing nozzle is inserted into the testing hole of the automobile injection molded part through the testing mechanism, thereby facilitating the air tightness testing of the automobile injection molded part without the need for additional operations by the processing personnel, thereby improving the overall testing efficiency.

[0019] (2) The air tightness testing tool for injection molded parts can drive the pressure plates installed on different threaded surfaces to move closer together through the bidirectional threaded rod, so that the two extension plates can move closer together to clamp and fix the automobile injection molded parts, making it convenient to perform air tightness testing on them. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of the external structure of the utility model;

[0021] Figure 2 It is a front view cross-sectional structural schematic diagram of the utility model;

[0022] Figure 3 It is a schematic diagram of the relevant structure of the detection mechanism in the utility model;

[0023] Figure 4 It is a schematic diagram of the related driving structure of two extension rods in the utility model.

[0024] In the figure: 1, inspection table; 2, column; 3, support table; 4, installation box; 5, U-shaped bracket; 6, airtightness detector; 7, telescopic hose; 8, extension rod; 9, cover plate; 10, inspection air nozzle; 11, sealing plug; 12, partition board; 13, threaded long rod; 14, moving block; 15, first driven gear; 16, first motor; 17, first driving gear; 18, synchronous pulley; 19, synchronous belt; 20, bidirectional threaded rod; 21, pressing plate; 22, extension plate; 23, second driven gear; 24, second motor; 25, second driving gear; 26, slide bar; 27, positioning rod; 28, limiting plate; 29, first soft pad; 30, second soft pad. Detailed implementation manners

[0025] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0026] Embodiment 1:

[0027] Please refer to Figures 1 to 4 , an airtightness detection tooling for injection molded parts, including an inspection table 1. Four columns 2 are fixedly connected to the top of the inspection table 1. The tops of the four columns 2 are fixedly connected to the same support table 3. An installation box 4 is connected through the support table 3. A detection mechanism is arranged in the installation box 4;

[0028] The detection mechanism includes a U-shaped bracket 5 fixedly connected to the inner wall of the bottom of the installation box 4. A airtightness detector 6 is connected through the U-shaped bracket 5. The model of the airtightness detector 6 is LY-MV-1001-B, and a valve and a pressure sensor are installed at its detection port. The detection port of the airtightness detector 6 is fixedly connected to a telescopic hose 7. One end of the telescopic hose 7 extends out of the installation box 4 movably. Two symmetrically distributed extension rods 8 are slidably inserted through the bottom of the installation box 4. The bottom ends of the two extension rods 8 are fixedly connected to the same cover plate 9. A detection nozzle 10 is connected through the cover plate 9. The detection nozzle 10 is connected to the telescopic hose 7. A plurality of sealing plugs 11 are arranged at the bottom of the cover plate 9. The sealing plugs 11 are tightened on the cover plate 9 by screws and are made of rubber material; A partition 12 is fixedly connected in the installation box 4. Two symmetrically distributed threaded long rods 13 are rotatably inserted through the partition 12. Moving blocks 14 are sleeved on both threaded long rods 13 by threads. The two moving blocks 14 are respectively connected to the corresponding extension rods 8; A first driven gear 15 is fixedly sleeved on the corresponding threaded long rod 13. A first motor 16 is fixedly connected to the top of the partition 12. The output shaft of the first motor 16 is fixedly connected to a first driving gear 17. The first driving gear 17 meshes with the first driven gear 15; Synchronous wheels 18 are fixedly sleeved on both threaded long rods 13. The same synchronous belt 19 is wound between the two synchronous wheels 18.

[0029] Embodiment 2:

[0030] Please refer to Figures 1 to 4 , this embodiment provides a technical solution on the basis of Embodiment 1: A bidirectional threaded rod 20 is rotatably connected in the detection table 1. Two pressing plates 21 are sleeved on the bidirectional threaded rod 20 by threads. The tops of the two pressing plates 21 both extend out of the detection table 1 slidably. Extension plates 22 are fixedly connected to the tops of the two pressing plates 21; A second driven gear 23 is fixedly sleeved on the bidirectional threaded rod 20. A second motor 24 is fixedly connected in the detection table 1. The output shaft of the second motor 24 is fixedly connected to a second driving gear 25. The second driving gear 25 meshes with the second driven gear 23; Two sliding rods 26 are fixedly connected in the installation box 4. The two sliding rods 26 respectively penetrate through the corresponding moving blocks 14 slidably; A positioning rod 27 is fixedly connected in the detection table 1. The positioning rod 27 penetrates through the two pressing plates 21 slidably. Two limiting plates 28 are fixedly sleeved on the positioning rod 27. The limiting plates 28 are made of wear-resistant plastic material; A first soft pad 29 is fixedly connected to the top of the detection table 1. The two sides of the first soft pad 29 extend upward. A second soft pad 30 is fixedly connected to one side of the extension plate 22. Both the first soft pad 29 and the second soft pad 30 are made of rubber material.

[0031] At the same time, the content not described in detail in this specification belongs to the prior art well known to those skilled in the art.

[0032] Working principle: When in use, first install the position of the sealing plug 11 according to the opening position of the automobile injection molded part to be tested, then place the automobile injection molded part on the first soft pad 29 on the test bench 1 to keep it centered, then start the second motor 24, the second motor 24 drives the second driven gear 23 meshing with it to rotate through the second driving gear 25, the second driven gear 23 drives the connected bidirectional threaded rod 20 to rotate, the bidirectional threaded rod 20 drives the two pressing plates 21 threadedly connected with it to approach each other, so that the extension plates 22 move against each other until the second soft pad 30 on one side abuts against the automobile injection molded part, and at the same time push the automobile injection molded part to move toward the center point until the two second soft pads 30 abut against the automobile injection molded part, at this time the first motor 16 can be started, the first motor 16 drives the second driven gear 23 meshing with it through the second driving gear 25. A driving gear 17 drives the first driven gear 15 meshing with it to rotate, and the first driven gear 15 drives the connected threaded long rod 13 to rotate, and the threaded long rod 13 drives another threaded long rod 13 to rotate through the synchronous wheel 18 and the synchronous belt 19. At this time, the two threaded long rods 13 keep rotating synchronously, and the threaded long rod 13 drives the moving block 14 threadedly connected with it to move downward, and the moving block 14 pushes the extension rod 8 to move downward, so that the cover plate 9 slowly descends, and the cover plate 9 drives the detection air nozzle 10 and the sealing plug 11 to descend until the sealing plug 11 is against the inlet and outlet hole at the top of the automobile injection molding part, and the detection air nozzle 10 is inserted into the detection port of the automobile injection molding part, and then the air tightness tester 6 is started to perform air tightness detection, and then the air tightness result of the automobile injection molding part is judged according to the instrument detection result.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] In the description of this article, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, or a connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection molded part air tightness testing tool, comprising a testing table (1), characterized in that: The top of the detection table (1) is fixedly connected with four columns (2), the tops of the four columns (2) are fixedly connected with the same support table (3), the support table (3) is penetrated and connected with an installation box (4), and a detection mechanism is arranged in the installation box (4); The detection mechanism includes a U-shaped bracket (5) fixedly connected to the inner wall of the bottom of the installation box (4), a air tightness detector (6) is penetrated and connected to the U-shaped bracket (5), a telescopic hose (7) is fixedly connected to the detection port of the air tightness detector (6), one end of the telescopic hose (7) extends out of the installation box (4) movably, two symmetrically distributed extension rods (8) are slidably inserted and connected to the bottom of the installation box (4), the bottoms of the two extension rods (8) are fixedly connected with the same cover plate (9), a detection air nozzle (10) is penetrated and connected to the cover plate (9), the detection air nozzle (10) is connected with the telescopic hose (7), and a plurality of sealing plugs (11) are arranged at the bottom of the cover plate (9).

2. The air tightness detection tool for injection molded parts according to claim 1, characterized in that: A partition plate (12) is fixedly connected in the installation box (4), two symmetrically distributed threaded long rods (13) are rotatably penetrated through the partition plate (12), moving blocks (14) are threadedly sleeved on the two threaded long rods (13), and the two moving blocks (14) are respectively connected with the corresponding extension rods (8).

3. The air tightness detection tool for injection molded parts according to claim 2, characterized in that: A first driven gear (15) is fixedly sleeved on the corresponding threaded long rod (13), a first motor (16) is fixedly connected to the top of the partition plate (12), a first driving gear (17) is fixedly connected to the output shaft of the first motor (16), and the first driving gear (17) meshes with the first driven gear (15); Synchronous wheels (18) are fixedly sleeved on the two threaded long rods (13), and the same synchronous belt (19) is wound between the two synchronous wheels (18).

4. The air tightness detection tool for injection molded parts according to claim 1, characterized in that: A bidirectional threaded rod (20) is rotatably connected in the detection table (1), two pressing plates (21) are threadedly sleeved on the bidirectional threaded rod (20), the tops of the two pressing plates (21) slide out of the detection table (1), and extension plates (22) are fixedly connected to the tops of the two pressing plates (21).

5. The air tightness detection tool for injection molded parts according to claim 4, characterized in that: A second driven gear (23) is fixedly sleeved on the bidirectional threaded rod (20), a second motor (24) is fixedly connected in the detection table (1), a second driving gear (25) is fixedly connected to the output shaft of the second motor (24), and the second driving gear (25) meshes with the second driven gear (23).

6. The air tightness detection tool for injection molded parts according to claim 2, characterized in that: Two sliding rods (26) are fixedly connected in the installation box (4), and the two sliding rods (26) respectively slide through the corresponding moving blocks (14).

7. The air tightness detection tool for injection molded parts according to claim 4, characterized in that: A positioning rod (27) is fixedly connected in the detection table (1), the positioning rod (27) slidably penetrates through the two pressing plates (21), and two limiting plates (28) are fixedly sleeved on the positioning rod (27).

8. The air tightness detection tool for injection molded parts according to claim 4, characterized in that: A first soft pad (29) is fixedly connected to the top of the detection table (1), and a second soft pad (30) is fixedly connected to one side of the extension plate (22).

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