Pneumatic test fixture

Abstract

The utility model discloses a pneumatic test fixture which comprises a pneumatic test fixture body, one side of the pneumatic test fixture body is provided with a plurality of placing grooves used for placing products, the placing grooves are internally provided with limiting structures used for fixing the products, and each limiting structure comprises a limiting plate, a supporting column, a connecting plate and a driving part. A plurality of grooves are further formed in one side of the pneumatic test jig body, through holes are formed in the grooves, one ends of the supporting columns are rotationally connected with one sides of the limiting plates, the ends, away from the limiting plates, of the supporting columns penetrate through the through holes and extend into the grooves, one sides of the connecting plates are rotationally connected with the ends, away from the limiting plates, of the supporting columns, and first bevel gears fixedly sleeve the outer sides of the supporting columns; and one side of the driving piece is fixedly connected with one end, far away from the supporting column, of the connecting plate, so that products with different sizes can be limited through the structure, the condition that the end parts of the products do not shake or deviate in the testing process is ensured, and the testing accuracy is improved to a certain extent.

Description

TECHNICAL FIELD

[0001] The utility model belongs to pneumatic test fixture technical field, concretely is a kind of pneumatic test fixture. BACKGROUND

[0002] Pneumatic test fixture is a kind of equipment using air pressure to drive for testing, it combines the function of pneumatic technology and test fixture, for the function, performance, reliability etc. of electronic product, automobile parts, mechanical parts etc. Test, to ensure that product meets quality standards and design requirements, improve the reliability and stability of product.

[0003] The existing pneumatic test fixture is mostly composed of test table, movable pressing plate and pressing cylinder, by opening test port on one side of test table, the end of the product to be tested is placed into the test port, and the pressing cylinder is started, the movable pressing plate is driven by the pressing cylinder to move towards the top of the product, so that the bottom of the movable pressing plate is attached to the top of the product, and then the product is limited, but when testing products of different sizes, since the size of the product does not match the test port, the movable pressing plate cannot be completely attached to the top of the product, which may cause the product to shake during testing, especially when the product is tested by swinging, which may cause the position of the product to deviate, reducing the accuracy of testing. UTILITY MODEL CONTENTS

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a pneumatic test fixture, which effectively solves the problem that the product shakes during testing of the pneumatic test fixture.

[0005] In order to achieve the above purpose, the utility model provides the following technical scheme: a kind of pneumatic test fixture, including pneumatic test fixture body, the side of pneumatic test fixture body is equipped with multiple placing grooves for placing product, and the inside of placing groove is equipped with limiting structure for fixing product;

[0006] The limiting structure includes limiting plate, support column, connecting plate and driving part, the side of pneumatic test fixture body provided with placing groove is also provided with multiple grooves for connecting plate to move, and the inside of groove is provided with through hole matched with the shape of support column, the through hole is communicated with the inside of placing groove, the limiting plate is located in the inside of placing groove, and the top and bottom of limiting plate are attached to the top and bottom of the inside of placing groove respectively, one end of support column is rotatably connected with one side of limiting plate, one end of support column away from limiting plate extends to the inside of groove through through hole, support column is threadedly connected with through hole, one side of connecting plate is rotatably connected with one end of support column away from limiting plate, and the top and bottom of connecting plate are attached to the top and bottom of the inside of groove respectively, the outside of support column is fixedly provided with bevel gear one, one side of driving part is fixedly connected with one end of connecting plate away from support column, and one end of driving part is engaged with the outside of bevel gear two.

[0007] Preferably, the driving member comprises a bevel gear II, a fixed plate and a connecting column, one side of the fixed plate is fixedly connected with the end of the connecting plate away from the support column, the bevel gear II is engaged with the bevel gear I, one end of the connecting column passes through the fixed plate on both sides and is fixedly connected with one side of the bevel gear II, and the connecting column is rotationally connected with the fixed plate.

[0008] Preferably, the end of the connecting column away from the bevel gear II is fixedly provided with a square handle.

[0009] Preferably, the side of the limiting plate away from the support column is provided with a flexible pad, and the side of the flexible pad away from the limiting plate is provided with a plurality of protruding blocks.

[0010] Preferably, the pneumatic test fixture body comprises a test fixture body, a movable pressing plate and a power member, one side of the test fixture body is provided with a plurality of placing grooves for placing products and a groove for the connecting plate to move, the top of the power member is fixedly connected with the bottom of the test fixture body, the movable pressing plate is located at the top of the test fixture body, and the output end of the power member passes through the bottom of the test fixture body and is fixedly connected with the bottom of the movable pressing plate.

[0011] Preferably, the power member is a compression cylinder, the top of the compression cylinder is fixedly connected with the bottom of the test fixture body, and the output end of the compression cylinder passes through the bottom of the test fixture body and is fixedly connected with the bottom of the movable pressing plate.

[0012] Compared with the prior art, the pneumatic test fixture has the beneficial effects that:

[0013] When the product is tested, one end of the product to be tested is placed into the placing groove, one side of the product is attached to one side in the placing groove, the driving member is rotated, the bevel gear I and the support column are driven to rotate by the driving member, the support column moves into the placing groove when the support column rotates due to the threaded connection between the support column and the through hole, and the limiting plate moves towards the product, so that one side of the limiting plate is attached to the outside of the product, different products can be limited by the above structure, the end of the product does not shake or deviate during the testing process, and the accuracy during testing is improved to a certain extent. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification, are used to explain the present utility model together with embodiments of the present utility model, and do not constitute limitations to the present utility model.

[0015] In the drawings:

[0016] Figure 1 It is a whole structure schematic view of the pneumatic test fixture of the present utility model;

[0017] Figure 2The utility model discloses pneumatic test fixture section structure schematic diagram shows that the utility model discloses a kind of pneumatic test fixture.

[0018] Figure 3 The utility model discloses limiting structure whole structure schematic diagram shows that the utility model discloses a kind of limiting structure.

[0019] Figure 4 The utility model discloses limiting structure split structure schematic diagram shows that the utility model discloses a kind of limiting structure.

[0020] In the drawing: 1, placing groove; 2, limiting plate; 3, support column; 4, connecting plate; 5, recess; 6, through hole; 7, bevel gear one; 8, bevel gear two; 9, fixed plate; 10, connecting column; 11, square handle; 12, flexible pad; 13, convex block; 14, measuring tool body; 15, movable pressing plate; 16, compression cylinder. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments; based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without making creative efforts belong to the range protected by the utility model.

[0022] As shown in Figures 1-4 The utility model discloses pneumatic test fixture body, the one side of pneumatic test fixture body is equipped with multiple placing groove 1 for placing product, placing groove 1 inside is equipped with the limiting structure for fixing product, and limiting structure includes limiting plate 2, support column 3, connecting plate 4 and driving piece, the one side of pneumatic test fixture body equipped with placing groove 1 still is equipped with multiple recess 5 for the activity of connecting plate 4, and recess 5 inside one side is equipped with the through hole 6 matched with the shape of support column 3, and through hole 6 is communicated with placing groove 1 inside, and limiting plate 2 is located placing groove 1 inside, and the top and bottom of limiting plate 2 are respectively attached with the top end and bottom end of placing groove 1 inside, and one end of support column 3 is rotatably connected with one side of limiting plate 2, and the end of support column 3 away from limiting plate 2 extends to recess 5 inside through through hole 6, and support column 3 is threadedly connected between through hole 6, and one side of connecting plate 4 is rotatably connected with the end of support column 3 away from limiting plate 2, and the top and bottom of connecting plate 4 are respectively attached with the top end and bottom end of recess 5 inside, and bevel gear one 7 is fixedly sleeved on the outside of support column 3, and one end of driving piece is fixedly connected with the end of connecting plate 4 away from support column 3, and one end of driving piece is engaged with the outside of bevel gear two 8.

[0023] The driving member comprises a bevel gear two 8, a fixed plate 9 and a connecting column 10. One side of the fixed plate 9 is fixedly connected with the connecting plate 4 away from one end of the supporting column 3. The bevel gear two 8 is engaged with the bevel gear one 7. One end of the connecting column 10 penetrates through both sides of the fixed plate 9 and is fixedly connected with one side of the bevel gear two 8. The connecting column 10 is rotationally connected with the fixed plate 9. A square handle 11 is fixedly arranged at one end of the connecting column 10 away from the bevel gear two 8. When the size of the product to be tested does not match the placement groove 1, the square handle 11 is rotated. The square handle 11 drives the connecting column 10 and the bevel gear two 8 to rotate. Since the bevel gear two 8 is engaged with the bevel gear one 7, the bevel gear one 7 is driven to rotate when the square handle 11 is rotated. The bevel gear one 7 drives the supporting column 3 to rotate. Since the supporting column 3 is threadedly connected with the through hole 6, the supporting column 3 moves towards the inside of the placement groove 1 when the supporting column 3 rotates. The supporting column 3 drives the limiting plate 2 to move towards the product, so that the side of the limiting plate 2 provided with the flexible pad 12 is attached to the outside of the product. The limiting plate 2 limits the end of the product to be tested.

[0024] The side of the limiting plate 2 away from the supporting column 3 is provided with the flexible pad 12. The side of the flexible pad 12 away from the limiting plate 2 is provided with a plurality of protruding blocks 13. The flexible pad 12 arranged on one side of the limiting plate 2 can reduce the extrusion force between the limiting plate 2 and the product, so as to prevent the product from being damaged due to excessive extrusion. The plurality of protruding blocks 13 arranged on one side of the flexible pad 12 can increase the friction between the flexible pad 12 and the product, so as to enhance the stability of the product.

[0025] The pneumatic test fixture body comprises a fixture body 14, a movable pressing plate 15 and a power member. One side of the fixture body 14 is provided with a plurality of placement grooves 1 for placing products and a groove 5 for the connecting plate 4 to move. The top of the power member is fixedly connected with the bottom of the fixture body 14. The movable pressing plate 15 is located at the top of the fixture body 14. The output end of the power member penetrates through the bottom of the fixture body 14 and is fixedly connected with the bottom of the movable pressing plate 15. The power member is a pressing cylinder 16. The top of the pressing cylinder 16 is fixedly connected with the bottom of the fixture body 14. The output end of the pressing cylinder 16 penetrates through the bottom of the fixture body 14 and is fixedly connected with the bottom of the movable pressing plate 15. The pressing cylinder 16 is started. The movable pressing plate 15 is driven by the pressing cylinder 16 to move towards the top of the fixture body 14, so that the bottom of the movable pressing plate 15 is attached to the top of the product. The movable pressing plate 15 extrudes and limits one end of the product to be tested.

[0026] Working principle: when testing the product, the end of the product to be tested is placed in the placement slot 1 opened on one side of the measuring tool body 14, and the side of the product is attached to the inside of the placement slot 1. Start the pressing cylinder 16, move the movable pressing plate 15 to the top of the measuring tool body 14 by the pressing cylinder 16, and make the bottom of the movable pressing plate 15 attached to the top of the product. The end of the product to be tested is extruded and limited by the movable pressing plate 15;

[0027] When the size of the product to be tested does not match the placement slot 1, rotate the square handle 11. When the square handle 11 rotates, it will drive the connecting column 10 and the bevel gear two 8 to rotate. Because the bevel gear two 8 is engaged with the bevel gear one 7, when the square handle 11 rotates, it will drive the bevel gear one 7 to rotate. The bevel gear one 7 drives the support column 3 to rotate. Because the support column 3 is threadedly connected with the through hole 6, when the support column 3 rotates, it will move towards the inside of the placement slot 1, and drive the limiting plate 2 to move towards the product, so that the side of the limiting plate 2 provided with the flexible pad 12 is attached to the outside of the product. The end of the product to be tested is limited by the limiting plate 2.

[0028] It should be noted that during the movement of the support column 3, the connecting plate 4 and the fixed plate 9 will move in the groove 5 opened on one side of the measuring tool body 14. The two ends of the support column 3 are respectively connected with one side of the limiting plate 2 and one side of the connecting plate 4, so that during the rotation of the support column 3, the limiting plate 2 and the connecting plate 4 will not rotate along with the movement track of the support column 3. At the same time, the top and bottom of the connecting plate 4 are respectively attached to the top and bottom of the groove 5. The limiting of the groove 5 can ensure the horizontal movement of the connecting plate 4. During the movement of the connecting plate 4, the fixed plate 9 and the connecting column 10 will move synchronously. During the movement of the connecting column 10, the bevel gear two 8 will move. Because the connecting plate 4, the support column 3 and the fixed plate 9 move synchronously, the bevel gear two 8 and the bevel gear one 7 also move synchronously, so that the bevel gear two 8 and the bevel gear one 7 can be stably engaged.

[0029] The square handle 11 can be better rotated by the user during use. The flexible pad 12 provided on one side of the limiting plate 2 can reduce the extrusion force between the limiting plate 2 and the product, preventing the product from being damaged due to excessive extrusion. At the same time, the multiple protruding blocks 13 provided on one side of the flexible pad 12 can increase the friction between the flexible pad 12 and the product, thereby enhancing the stability of the product.

Claims

1. A pneumatic test fixture comprising a pneumatic test fixture body, characterized by: The pneumatic test fixture body is provided with a plurality of placing grooves (1) for placing products on one side, and the placing grooves (1) are internally provided with limiting structures for fixing the products; The limiting structure comprises a limiting plate (2), a supporting column (3), a connecting plate (4) and a driving member, one side of the pneumatic test fixture body provided with the placing grooves (1) is also provided with a plurality of grooves (5) for the movement of the connecting plates (4), one side of the grooves (5) is internally provided with a through hole (6) matched with the shape of the supporting column (3), the through hole (6) is communicated with the inside of the placing groove (1), the limiting plate (2) is located inside the placing groove (1), and the top and bottom of the limiting plate (2) are respectively fitted with the top end and the bottom end of the inside of the placing groove (1), one end of the supporting column (3) is rotatably connected with one side of the limiting plate (2), the end of the supporting column (3) away from the limiting plate (2) extends to the inside of the groove (5) through the through hole (6), and the supporting column (3) is threadedly connected with the through hole (6), one side of the connecting plate (4) is rotatably connected with the end of the supporting column (3) away from the limiting plate (2), and the top and bottom of the connecting plate (4) are respectively fitted with the top end and the bottom end of the inside of the groove (5), a bevel gear one (7) is fixedly arranged outside the supporting column (3), and one side of the driving member is fixedly connected with the end of the connecting plate (4) away from the supporting column (3), and one end of the driving member is engaged with the outside of a bevel gear two (8).

2. The pneumatic test fixture of claim 1, wherein: The driving member comprises a bevel gear two (8), a fixed plate (9) and a connecting column (10), one side of the fixed plate (9) is fixedly connected with the end of the connecting plate (4) away from the supporting column (3), the bevel gear two (8) is engaged with the bevel gear one (7), one end of the connecting column (10) passes through the fixed plate (9) on both sides and is fixedly connected with one side of the bevel gear two (8), and the connecting column (10) is rotatably connected with the fixed plate (9).

3. The pneumatic test fixture of claim 2, wherein: One end of the connecting column (10) away from the bevel gear two (8) is fixedly provided with a square handle (11).

4. The pneumatic test fixture of claim 1, wherein: One side of the limiting plate (2) away from the supporting column (3) is provided with a flexible pad (12), and one side of the flexible pad (12) away from the limiting plate (2) is provided with a plurality of protruding blocks (13).

5. The pneumatic test fixture of claim 1, wherein: The pneumatic test fixture body comprises a test fixture body (14), a movable pressing plate (15) and a power member, one side of the test fixture body (14) is provided with a plurality of placing grooves (1) for placing products and grooves (5) for the movement of the connecting plates (4), the top of the power member is fixedly connected with the bottom of the test fixture body (14), the movable pressing plate (15) is located on the top of the test fixture body (14), and the output end of the power member passes through the bottom of the test fixture body (14) and is fixedly connected with the bottom of the movable pressing plate (15).

6. The pneumatic test fixture of claim 5, wherein: The power member is a compression cylinder (16), the top of the compression cylinder (16) is fixedly connected with the bottom of the test fixture body (14), and the output end of the compression cylinder (16) passes through the bottom of the test fixture body (14) and is fixedly connected with the bottom of the movable pressing plate (15).

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