Part air tightness detection device

Abstract

The utility model relates to the technical field of part air tightness detection, and aims to provide a part air tightness detection device which comprises a bottom plate, a bearing plate is arranged above the bottom plate, a lifting assembly is arranged between the bearing plate and the bottom plate, a guide limiting assembly is arranged on the side wall of the lifting assembly, a detection assembly is arranged on the bearing plate, and the detection assembly is arranged on the bottom plate. Through the integrated design, the functions of lifting, guiding and limiting, detecting and clamping are integrated, rapid positioning, clamping and air tightness detection of parts are achieved, gas injection is accurately controlled by a gas electromagnetic valve, and air tightness testing can be efficiently and accurately completed in cooperation with driving of a detection air cylinder. The detection efficiency and the reliability of the result are remarkably improved, the clamping assembly adopts a modular design and can be flexibly adjusted according to the sizes and shapes of different parts, stable clamping of different types of parts is ensured, the application range of the detection device is widened, and the universality and practicability of the detection device are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to part air tightness detection technical field, especially a part air tightness detection device. BACKGROUND

[0002] In the automobile manufacturing industry, the air tightness detection of parts is an important link to ensure the overall performance and safety of the automobile. With the continuous progress of automobile technology and the increasing demand of consumers for automobile quality, higher standards for the air tightness detection of automobile parts have been put forward. However, the traditional air tightness detection method has many shortcomings, such as low detection efficiency, inaccurate detection results, complex operation, etc., which has been difficult to meet the needs of modern automobile production.

[0003] The traditional air tightness detection device usually uses a simple clamp to fix the part to be detected, and then injects gas into the part by manual or pneumatic method, and observes whether there is gas leakage to judge the air tightness of the part. This method is not only cumbersome to operate, but also easily affected by human factors, resulting in low accuracy of detection results. In addition, the traditional detection device often lacks flexible adjustment mechanism, which is difficult to adapt to the detection needs of parts of different sizes and shapes. SUMMARY

[0004] The utility model aims at providing a part air tightness detection device to solve the problems in the background art and facilitate popularization.

[0005] A part air tightness detection device, comprising a bottom plate, a bearing plate is arranged above the bottom plate, a lifting assembly is arranged between the bearing plate and the bottom plate, a guide limiting assembly is arranged on the side wall of the lifting assembly, a lifting assembly is arranged on the top of the bottom plate, a detection assembly is arranged on the top of the bearing plate, and a clamping assembly is arranged on the detection assembly.

[0006] The detection assembly comprises a detection support frame fixedly arranged on the top of the bearing plate and a water storage tank fixedly arranged on the top of the bearing plate, a water outlet pipe is arranged on the outer wall of the water storage tank, a water release switch is arranged on the water outlet pipe, a gas tank is symmetrically arranged on the top of the detection support frame, a gas solenoid valve is arranged on the gas outlet of the gas tank, a gas conveying hose is arranged on the gas solenoid valve, an air injection head is fixedly arranged on one end of the gas conveying hose away from the gas solenoid valve, a detection cylinder is fixedly arranged on the top of the detection support frame, and a detection connecting plate is fixedly arranged on the piston rod of the detection cylinder.

[0007] Further, the clamping assembly comprises a plurality of uniformly arranged clamping connecting rods fixedly arranged below the detection connecting plate, one end of the clamping connecting rod away from the detection connecting plate is fixedly provided with an inserting groove, the inserting groove is inserted with an inserting rod, a limiting bolt one is inserted below the inserting groove, the limiting bolt one is threadedly connected with the inserting groove and the inserting rod, one end of the inserting rod is fixedly provided with an inserting fixing plate, a clamping sliding rail is arranged on the outer wall of the inserting fixing plate, a moving block is slidably arranged in the clamping sliding rail, a clamping connecting frame is fixedly arranged below the moving block, a part clamping is arranged on the outer wall of the clamping connecting frame, a clamping limiting plate is arranged on the inner wall of the clamping connecting frame, a plurality of uniformly arranged clamping limiting through holes are formed in the clamping limiting plate, a limiting bolt two is inserted in the clamping limiting through hole, and the limiting bolt two is threadedly connected with the clamping connecting frame through the clamping limiting through hole.

[0008] Further, the lifting assembly comprises a lifting shaft sleeve one and a lifting shaft sleeve two symmetrically arranged above the bottom plate, a lifting rod is inserted in the lifting shaft sleeve one and the lifting shaft sleeve two, and one end of the lifting rod away from the lifting shaft sleeve one and the lifting shaft sleeve two is fixedly arranged below the bearing plate.

[0009] Further, the guiding limiting assembly comprises a horizontal plate fixedly arranged on the outer wall of the lifting rod and a guiding shaft sleeve fixedly arranged on the outer wall of the lifting shaft sleeve one and the lifting shaft sleeve two, a guiding rod is fixedly arranged below the horizontal plate, one end of the guiding rod away from the horizontal plate is fixedly provided with a guiding limiting plate through the guiding shaft sleeve, a plurality of uniformly arranged guiding limiting holes are formed in the outer wall of the guiding rod, a guiding limiting bolt is inserted in the guiding shaft sleeve, and the guiding limiting bolt is threadedly connected with the guiding limiting hole in the guiding shaft sleeve.

[0010] Further, the lifting assembly comprises a lifting support frame fixedly arranged above the bottom plate, lifting vertical plates one and two are symmetrically arranged above the lifting support frame, a lifting drive rod is rotatably arranged on the inner wall of the lifting vertical plate one, one end of the lifting drive rod away from the lifting vertical plate one is fixedly provided with a lifting knob through the lifting vertical plate two, lifting threads one and two are formed in the lifting drive rod, a screw nut pair is threadedly connected on the lifting threads one and two, an ear seat one is arranged on the upper surface of the screw nut pair, a lifting horizontal plate is arranged between the lifting rods, ear seats two are symmetrically arranged below the lifting horizontal plate, and a lifting adjusting rod is arranged between the ear seat two and the ear seat one.

[0011] Further, the thread directions of the lifting threads one and two are opposite.

[0012] As an improvement, the beneficial effects of the present application are:

[0013] The utility model discloses a kind of parts air-tightness detection devices, by integrated design, lifting, guiding limit, detection and clamping function are integrated, the rapid positioning of part, clamping and air-tightness detection are realized.During detection process, gas solenoid valve accurately controls the injection of gas, cooperates with the drive of detection cylinder, can efficiently, accurately complete air-tightness test, significantly improve the reliability of detection efficiency and result, clamping assembly adopts modular design, including adjustable plug-in rod, clamping slide rail and part clamp etc. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is an isometric side view A of the utility model of a kind of parts air-tightness detection devices;

[0015] Figure 2 It is an isometric side view B of the utility model of a kind of parts air-tightness detection devices;

[0016] Figure 3 It is an isometric side view C of the utility model of a kind of parts air-tightness detection devices;

[0017] Figure 4 It is the enlarged view of A in the utility model Figure 1 ;

[0018] Figure 5 It is the enlarged view of B in the utility model Figure 1 ;

[0019] Figure 6 It is the enlarged view of C in the utility model Figure 2 ;

[0020] Figure 7 It is the enlarged view of D in the utility model Figure 3 ;

[0021] Correspondence table of reference signs:

[0022] 1, bottom plate; 2, bearing plate; 3, lifting assembly; 301, lifting shaft sleeve one; 302, lifting shaft sleeve two; 303, lifting rod; 4, guide limiting assembly; 401, horizontal plate; 402, guide shaft sleeve; 403, guide rod; 404, guide limiting plate; 405, guide limiting hole; 406, guide limiting bolt; 5, lifting assembly; 501, lifting support frame; 502, lifting upright plate one; 503, lifting upright plate two; 504, lifting drive rod; 505, lifting knob; 506, lifting thread one; 507, lifting thread two; 508, screw nut pair; 509, ear seat one; 510, lifting horizontal plate; 511, ear seat two; 512, lifting adjustment rod; 6, detection assembly; 601, detection support frame; 602, water storage tank; 603, water outlet pipe; 604, drain switch; 605, gas storage tank; 606, gas solenoid valve; 607, gas delivery hose; 608, gas injection head; 609, detection cylinder; 610, detection connecting plate; 7, clamping assembly; 701, clamping connecting rod; 702, insertion slot; 703, insertion rod; 704, limiting bolt one; 705, insertion fixed plate; 706, clamping slide rail; 707, moving block; 708, clamping connecting frame; 709, part clamp; 710, clamping limiting plate; 711, clamping limiting through hole; 712, limiting bolt two. DETAILED DESCRIPTION

[0023] The specific embodiments of the present application will be further described below with reference to the accompanying drawings. The same parts are denoted by the same reference numerals in the drawings. It should be noted that the words "front", "back", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "inner" and "outer" refer to the directions towards or away from the geometric center of a particular part.

[0024] In order to make the content of the present application more easily understood, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings. The same parts are denoted by the same reference numerals.

[0025] The present embodiment provides a part air tightness detection device, which comprises a bottom plate 1, a bearing plate 2 is arranged above the bottom plate 1, a lifting assembly 3 is arranged between the bearing plate 2 and the bottom plate 1, a guide limiting assembly 4 is arranged on the side wall of the lifting assembly 3, a lifting assembly 5 is arranged on the bottom plate 1, a detection assembly 6 is arranged on the bearing plate 2, and a clamping assembly 7 is arranged on the detection assembly 6.

[0026] In the embodiment, the detection assembly 6 is fixedly arranged above the bearing plate 2, and specifically includes a detection support frame 601 and a water storage tank 602. The detection support frame 601 is used for supporting and fixing other detection components, and the water storage tank 602 is used for storing water required for detection. An outlet pipe 603 is arranged on the outer wall of the water storage tank 602, and a water release switch 604 is arranged on the outlet pipe 603, so as to control the outflow of water.

[0027] An air storage tank 605 is symmetrically arranged on the upper surface of the detection support frame 601. An air outlet of the air storage tank 605 is provided with an air electromagnetic valve 606, which is used for controlling the outflow of air. The air electromagnetic valve 606 is connected with a gas conveying hose 607. An air injection head 608 is fixedly arranged at the end of the gas conveying hose 607 away from the air electromagnetic valve 606, which is used for injecting air into the part to be detected.

[0028] In addition, a detection cylinder 609 is fixedly arranged on the detection support frame 601. A piston rod of the detection cylinder 609 is fixedly provided with a detection connecting plate 610, which is used for connecting and driving the clamping assembly 7.

[0029] In the embodiment, the clamping assembly 7 is fixedly arranged below the detection connecting plate 610, and includes a plurality of clamping connecting rods 701 arranged uniformly. An insertion slot 702 is fixedly arranged at the end of the clamping connecting rod 701 away from the detection connecting plate 610. An insertion rod 703 is inserted into the insertion slot 702, which is used for adjusting the clamping position. A limiting bolt one 704 is inserted below the insertion slot 702. The limiting bolt one 704 is threadedly connected with the insertion rod 703 through the insertion slot 702, and is used for fixing the position of the insertion rod 703.

[0030] An insertion fixing plate 705 is fixedly arranged at one end of the insertion rod 703. A clamping sliding rail 706 is arranged on the outer wall of the insertion fixing plate 705. A moving block 707 is slidably arranged in the clamping sliding rail 706, which is used for adjusting the clamping position. A clamping connecting frame 708 is fixedly arranged below the moving block 707. A part clamp 709 is arranged on the outer wall of the clamping connecting frame 708, which is used for clamping the part to be detected.

[0031] A clamping limiting plate 710 is arranged on the inner wall of the clamping connecting frame 708. A plurality of clamping limiting through holes 711 arranged uniformly are formed in the clamping limiting plate 710. A limiting bolt two 712 is inserted into the clamping limiting through hole 711. The limiting bolt two 712 is threadedly connected with the clamping connecting frame 708 through the clamping limiting through hole 711, and is used for fixing the position of the clamping limiting plate 710, so as to ensure the clamping force and stability of the part clamp 709.

[0032] In this embodiment, the lifting assembly 3 is symmetrically arranged on the upper surface of the bottom plate 1, comprising a lifting shaft sleeve one 301 and a lifting shaft sleeve two 302. The lifting rod 303 is inserted in the lifting shaft sleeve one 301 and the lifting shaft sleeve two 302. The end of the lifting rod 303 away from the lifting shaft sleeve one 301 and the lifting shaft sleeve two 302 is fixedly arranged on the lower surface of the bearing plate 2, for lifting and lowering the bearing plate 2.

[0033] In this embodiment, the guide limiting assembly 4 comprises a horizontal plate 401 fixedly arranged on the outer wall of the lifting rod 303 and a guide shaft sleeve 402 fixedly arranged on the outer wall of the lifting shaft sleeve one 301 and the lifting shaft sleeve two 302. The lower surface of the horizontal plate 401 is fixedly provided with a guide rod 403. The end of the guide rod 403 away from the horizontal plate 401 is fixedly provided with a guide limiting plate 404 through the guide shaft sleeve 402, for limiting the movement range of the lifting rod 303.

[0034] A plurality of uniformly arranged guide limiting holes 405 are formed on the outer wall of the guide rod 403. The guide limiting bolt 406 is inserted in the guide shaft sleeve 402 and is threadedly connected in the guide limiting hole 405, for further fixing the position of the lifting rod 303.

[0035] In this embodiment, the lifting assembly 5 is fixedly arranged on the upper surface of the bottom plate 1, comprising a lifting support frame 501. The upper surface of the lifting support frame 501 is symmetrically provided with a lifting vertical plate one 502 and a lifting vertical plate two 503. The inner wall of the lifting vertical plate one 502 is rotatably provided with a lifting drive rod 504. The end of the lifting drive rod 504 away from the lifting vertical plate one 502 is fixedly provided with a lifting knob 505 through the lifting vertical plate two 503, for manually driving the rotation of the lifting drive rod 504.

[0036] The lifting drive rod 504 is provided with a lifting thread one 506 and a lifting thread two 507. The thread directions of the lifting thread one 506 and the lifting thread two 507 are opposite, for realizing the synchronous lifting of the lifting rod 303. The lifting thread one 506 and the lifting thread two 507 are threadedly connected with a lead screw nut pair 508. The upper surface of the lead screw nut pair 508 is provided with an ear seat one 509.

[0037] The lifting rod 303 is provided with a lifting horizontal plate 510. The lower surface of the lifting horizontal plate 510 is symmetrically provided with an ear seat two 511. The ear seat two 511 and the ear seat one 509 are provided with a lifting adjusting rod 512, for connecting and driving the lifting of the lifting rod 303.

[0038] By rotating the lifting knob 505, the rotation of the lifting drive rod 504 can be driven, and then the lifting of the bearing plate 2, the detection assembly 6 and the clamping assembly 7 thereon can be realized through the transmission of the lead screw nut pair 508, the lifting adjusting rod 512 and other components.

[0039] The above merely describes the preferred embodiments of the present utility model patent, and is not intended to limit the present utility model patent, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model patent shall be included in the protection scope of the present utility model patent.

Claims

1. A device for detecting the tightness of a part, comprising a base plate (1), characterized in that, A support plate (2) is provided above the base plate (1), a lifting component (3) is provided between the support plate (2) and the base plate (1), a guide limiting component (4) is provided on the side wall of the lifting component (3), a lifting component (5) is provided on the base plate (1), a detection component (6) is provided on the support plate (2), and a clamping component (7) is provided on the detection component (6). The detection assembly (6) includes a detection support frame (601) fixedly mounted on the support plate (2) and a water storage tank (602) fixedly mounted on the support plate (2). The water storage tank (602) has a water outlet pipe (603) on its outer wall and a water discharge switch (604) on the water outlet pipe (603). The detection support frame (601) is symmetrically equipped with gas storage tanks (605). The gas storage tank (605) has a gas solenoid valve (606) on its gas outlet and a gas delivery hose (607) on the gas solenoid valve (606). The gas delivery hose (607) has an injection head (608) fixedly mounted at one end away from the gas solenoid valve (606). The detection support frame (601) is fixedly equipped with a detection cylinder (609), and the piston rod of the detection cylinder (609) is fixedly equipped with a detection connecting plate (610).

2. The device for detecting the air tightness of a part according to claim 1, characterized in that, The clamping assembly (7) includes a plurality of evenly arranged clamping connecting rods (701) fixedly disposed below the detection connecting plate (610). An insertion slot (702) is fixedly provided at one end of each clamping connecting rod (701) away from the detection connecting plate (610). An insertion rod (703) is inserted into the insertion slot (702). A limiting bolt (704) is inserted below the insertion slot (702). The limiting bolt (704) passes through the insertion slot (702) and is threadedly connected to the insertion rod (703). An insertion fixing plate (705) is fixedly provided at one end of each insertion rod (703). A clamping device is provided on the outer wall of the insertion fixing plate (705). A slide rail (706) is provided, and a moving block (707) is slidably provided inside the clamping slide rail (706). A clamping connecting frame (708) is fixedly provided below the moving block (707). A part clamp (709) is provided on the outer wall of the clamping connecting frame (708). A clamping limiting plate (710) is provided on the inner wall of the clamping connecting frame (708). A plurality of evenly arranged clamping limiting through holes (711) are opened on the clamping limiting through holes (711). A second limiting bolt (712) is inserted into the clamping limiting through holes (711). The second limiting bolt (712) passes through the clamping limiting through holes (711) and is threadedly connected to the clamping connecting frame (708).

3. The device for detecting the air tightness of a part according to claim 2, characterized in that, The lifting assembly (3) includes a first lifting bushing (301) and a second lifting bushing (302) symmetrically arranged on the base plate (1). A lifting rod (303) is inserted into the first lifting bushing (301) and the second lifting bushing (302). The end of the lifting rod (303) away from the first lifting bushing (301) and the second lifting bushing (302) is fixedly arranged under the bearing plate (2).

4. The device for detecting the air tightness of a part according to claim 3, characterized in that, The guide limiting component (4) comprises a horizontal plate (401) fixed on the outer wall of the lifting rod (303) and a guide sleeve (402) fixed on the outer wall of the lifting sleeve I (301) and the lifting sleeve II (302), a guide rod (403) is fixed below the horizontal plate (401), one end of the guide rod (403) away from the horizontal plate (401) penetrates through the guide sleeve (402) and is fixedly provided with a guide limiting plate (404), a plurality of uniformly arranged guide limiting holes (405) are arranged on the outer wall of the guide rod (403), a guide limiting bolt (406) is inserted into the guide sleeve (402), and the guide limiting bolt (406) penetrates through the guide sleeve (402) and is threadedly connected into the guide limiting hole (405).

5. The device for testing the air tightness of a part according to claim 4, characterized in that, The lifting assembly (5) comprises a lifting support frame (501) fixed on the top of the bottom plate (1), lifting vertical plates I (502) and II (503) are symmetrically arranged on the top of the lifting support frame (501), a lifting drive rod (504) is rotatably arranged on the inner wall of the lifting vertical plate I (502), a lifting knob (505) is fixedly arranged on one end of the lifting drive rod (504) away from the lifting vertical plate I (502) and penetrates through the lifting vertical plate II (503), lifting threads I (506) and II (507) are arranged on the lifting drive rod (504), a screw nut pair (508) is threadedly connected on the lifting threads I (506) and II (507), an ear seat I (509) is arranged on the top of the screw nut pair (508), a lifting horizontal plate (510) is arranged between the lifting rods (303), ear seats II (511) are symmetrically arranged on the bottom of the lifting horizontal plate (510), and a lifting adjusting rod (512) is arranged between the ear seat II (511) and the ear seat I (509).

6. The device for detecting the air tightness of a part according to claim 5, characterized in that, The threads between the lifting threads I (506) and II (507) are opposite in rotation direction.

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