Pressure sensor test fixture

Abstract

The utility model discloses a pressure sensor test fixture, which belongs to the technical field of fixtures, and comprises a clamping sleeve and a bottom plate, the end part of the clamping sleeve is provided with the bottom plate, the surface of the bottom plate is fixedly provided with a supporting block, the middle part of the supporting block is provided with a rotating groove, a rotating rod is inserted into the middle part of the rotating groove, and the end part of the rotating rod is fixedly provided with a rotating disc inserted into the clamping sleeve. Guide grooves are formed in the periphery of the rotating disc, guide blocks are embedded in the guide grooves, clamping plates penetrating through the clamping sleeve are fixed to the surfaces of the guide blocks, connecting blocks penetrating through the side wall of the clamping sleeve are fixed to the side wall of the periphery of the rotating disc, and first lantern rings arranged on the surface of the clamping sleeve in a sleeving mode are fixed to the ends of the connecting blocks. The multiple sets of clamping plates are close to each other, so that the clamping plates clamp the pressure sensor, the convenience of clamping the sensor by an operator is improved, the operator can conveniently open the clamping sleeve, replace parts in the clamping sleeve or maintain the clamping sleeve, and the usability of the operator is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of fixtures, and in particular relates to a pressure sensor testing fixture. Background Art

[0002] A pressure sensor is a device or apparatus that can sense pressure signals and convert them into usable output electrical signals according to certain rules. It is usually composed of a pressure sensitive element and a signal processing unit. The pressure sensor can convert the sensed liquid or gas pressure into a standard electrical signal for external output. It is widely used in various industrial automation environments. After the pressure sensor is produced, the operator may need to test the pressure sensor. During the test, the pressure sensor may need to be clamped with a fixture. Therefore, it can be seen that the existing fixtures basically meet people's practical needs, but the following problems still exist.

[0003] When clamping, the operator places the pressure sensor on the test bench, and then places the threaded jaws on the test bench. The operator then matches the threads on the jaws with the threads on the test bench so that the clamp fixes the jaws on the test bench, thereby clamping the pressure sensor on the test bench. However, the operator may need to repeatedly turn the bolts when clamping the pressure sensor, which may make it cumbersome for the operator to clamp the pressure sensor. For this reason, we propose a pressure sensor test fixture. Utility Model Content

[0004] The utility model provides a pressure sensor test fixture. After a plurality of groups of clamping plates are brought close to each other, the clamping plates clamp the pressure sensor, thereby improving the convenience of the operator clamping the sensor.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pressure sensor test fixture, comprising a clamping sleeve and a base plate, the base plate being installed at the end of the clamping sleeve, a support block being fixed on the surface of the base plate, and a rotating groove being opened in the middle of the support block, a rotating rod being inserted in the middle of the rotating groove, and a rotating disk inserted in the clamping sleeve being fixed on the end of the rotating rod, guide grooves being opened around the rotating disk, and guide blocks being embedded in the guide grooves, clamps penetrating the clamping sleeve being fixed on the surface of the guide blocks, connecting blocks penetrating the side walls of the clamping sleeve being fixed on the side walls around the rotating disk, and a first ring sleeved on the surface of the clamping sleeve being fixed on the end of the connecting block.

[0006] Furthermore, the bottom plate is provided with sliding grooves around, and the sliding grooves are embedded with sliders, the middle of the slider is penetrated by a traction rod fixed on the inner wall of the sliding groove, and the surface of the traction rod is wrapped with a first spring respectively abutting between the surface of the slider and the inner wall of the sliding groove, the surface of the slider is fixed with a positioning pin penetrating the sliding groove, and the surface of the positioning pin is sleeved with a slot opened on the inner wall of the clamping sleeve, the other end of the slider is fixed with a pulling block, and the surface of the pulling block is sleeved with a traction groove opened on the bottom plate.

[0007] Furthermore, the middle part of the pulling block is arranged as an arc-shaped groove, and a plurality of groups of semicircular protrusions are fixed on the surface of the arc-shaped groove opened in the middle part of the pulling block.

[0008] Furthermore, the support block is provided with a pressure component around it, and a support ring is fixed to the end of the pressure component, the surface of the support ring is provided with an avoidance groove opened on the surface of the turntable, and a plurality of groups of resistance blocks are fixed on one side where the support ring and the avoidance groove are fitted to each other, and the surfaces of the resistance blocks are all provided with a resistance groove opened on the inner wall of the avoidance groove.

[0009] Furthermore, the pressing component includes a connecting rod, a sleeve block, a second spring, a spring groove, a push rod and a second ring. The support block is provided with spring grooves around it, and the inner walls of the spring grooves are respectively provided with sleeve blocks and second springs. The two side ends of the second spring are respectively abutted between the sleeve block surface and the inner wall of the spring groove. A push rod passing through the spring groove is fixed in the middle of the sleeve block, and the end of the push rod is fixed on the support ring. The side walls of the sleeve block are all fixed with connecting rods passing through the clamping sleeve, and the end of the connecting rod is fixed with a second ring mounted on the surface of the clamping sleeve.

[0010] Furthermore, a push plate is fixed on the surface of the second ring, and a plurality of groups of wave-shaped grooves are formed on the surface of the push plate.

[0011] The beneficial effects of the utility model are:

[0012] 1. The pressure sensor test fixture is provided with a first ring, a connecting block, a turntable and a clamping plate. The operator holds his hand on the surface of the first ring and then rotates the first ring. The first ring drives the turntable to move through the connecting block, so that the turntable drives the clamping plate to slide in the through hole opened on the surface of the clamping sleeve, so that several groups of clamping plates are close to each other, so that the clamping plate clamps the pressure sensor, thereby improving the convenience of the operator clamping the sensor.

[0013] 2. The pressure sensor test fixture is provided with a pull block, a slider and a slide groove. When the operator pulls the pull block, the pull block drives the slider to slide in the slide groove, so that the slider drives the positioning pin to move out of the slot. After the positioning pin and the slot no longer fix the bottom plate and the clamping sleeve, it is convenient for the operator to fix the bottom plate and the clamping sleeve, and it is convenient for the operator to open the clamping sleeve, replace the parts in the clamping sleeve or repair the clamping sleeve, thereby improving the usability of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model in a top view;

[0016] Figure 3 It is a schematic diagram of the top view structure of the utility model;

[0017] Figure 4 For the utility model Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0018] Figure 5 For the utility model Figure 1 Schematic diagram of the enlarged structure at point B in the middle.

[0019] In the figure:

[0020] 1. Clamping sleeve; 2. Bottom plate; 3. Support block; 4. Rotating rod; 5. Rotating groove; 6. Connecting rod; 7. Push plate; 8. First sleeve ring; 9. Connecting block; 10. Clamping plate; 11. Rotating disk; 12. Second sleeve ring; 13. Pull block; 14. Traction groove; 15. First spring; 16. Traction rod; 17. Slide groove; 18. Positioning pin; 19. Slot; 20. Slider; 21. Abutment block; 22. Support ring; 23. Abutment groove; 24. Push rod; 25. Sleeve block; 26. Second spring; 27. Spring groove; 28. Avoidance groove; 29. ​​Guide groove; 30. Guide block. DETAILED DESCRIPTION

[0021] In order to further understand the content, features and effects of the utility model, the following embodiments are listed and described in detail with reference to the accompanying drawings.

[0022] Example:

[0023] See also Figure 1 - Figure 5A pressure sensor test fixture comprises a clamping sleeve 1 and a base plate 2, the base plate 2 is installed at the end of the clamping sleeve 1, a support block 3 is hot-melt bonded to the surface of the base plate 2, and a rotation groove 5 is opened in the middle of the support block 3, a rotating rod 4 is inserted in the middle of the rotating groove 5, and a turntable 11 inserted in the clamping sleeve 1 is hot-melt bonded to the end of the rotating rod 4, a guide groove 29 is opened around the turntable 11, and the guide groove 29 is embedded with a guide block 30, and the surface of the guide block 30 is hot-melt bonded with a clamping plate 10 penetrating the clamping sleeve 1, and a connecting block 9 penetrating the side wall of the clamping sleeve 1 is hot-melt bonded on the side wall of the turntable 11, and a first ring 8 sleeved on the surface of the clamping sleeve 1 is hot-melt bonded at the end of the connecting block 9. When the operator needs to clamp the pressure sensor placed on the clamping sleeve 1, the operator first holds the hand on the surface of the first ring 8. After the operator holds the operator's hand on the surface of the first ring 8, the operator rotates the first ring 8. A set of rings 8, the first set of rings 8 drives the connecting block 9 to move, so that the connecting block 9 rotates left and right in the notch opened on the surface of the clamping sleeve 1, so that the first set of rings 8 drives the rotating rod 4 to rotate in the rotating groove 5 through the connecting block 9, so that the turntable 11 rotates in the clamping sleeve 1, and when the turntable 11 rotates in the clamping sleeve 1, the turntable 11 drives the guide block 30 to move through the guide groove 29, and the guide block 30 drives the clamping plate 10 to move, and when the clamping plate 10 moves, the clamping plate 10 is restricted by the arc-shaped through hole opened on the surface of the clamping sleeve 1, so that the clamping plate 10 moves in the arc-shaped notch, and when the clamping plate 10 moves, the clamping plate 10 drives the guide block 30 to move in the guide groove 29, so that the clamping plate 10 can move on the surface of the turntable 11, thereby bringing several groups of turntables 11 close to each other, so that several groups of turntables 11 clamp the pressure sensor, and improve the convenience of the operator clamping the pressure sensor.

[0024] In other embodiments, the bottom plate 2 is provided with a slide groove 17 around it, and the slide groove 17 is embedded with a slider 20, the middle of the slider 20 is penetrated by a traction rod 16 which is hot-melt bonded to the inner wall of the slide groove 17, and the surface of the traction rod 16 is wound with a first spring 15 which respectively abuts between the surface of the slider 20 and the inner wall of the slide groove 17, the surface of the slider 20 is hot-melt bonded with a positioning pin 18 which passes through the slide groove 17, and the surface of the positioning pin 18 is sleeved with a slot 19 which is provided on the inner wall of the clamping sleeve 1, the other end of the slider 20 is hot-melt bonded with a pulling block 13, and the surface of the pulling block 13 is sleeved with a traction groove 14 which is provided on the bottom plate 2, when the operator needs to separate the bottom plate 2 and the clamping sleeve 1, the operator first presses his finger on the surface of the pulling block 13, and then the operator pulls the pulling block 13, the pulling block 13 drives the slider 20 to slide in the slide groove 17, and the slider 20 slides in the slide groove 17 When the slider 20 is moved, the circular through hole in the middle of the slider 20 slides on the surface of the cylindrical traction rod 16, so that the traction rod 16 pulls the trajectory of the slider 20 moving in the slide groove 17, thereby improving the stability of the slider 20 sliding in the slide groove 17, and when the slider 20 moves, the slider 20 squeezes the first spring 15, so that the first spring 15 is elastically deformed, and the first spring 15 avoids the slider 20 after the elastic deformation of the first spring 15, so that the slider 20 drives the positioning pin 18 to move out of the slot 19, so that the positioning pin 18 and the slot 19 no longer fix the bottom plate 2 and the clamping sleeve 1. After that, the operator pulls the bottom plate 2, and the bottom plate 2 is moved out of the clamping sleeve 1, which is convenient for the operator to separate the bottom plate 2 and the clamping sleeve 1, and it is convenient for the operator to open the clamping sleeve 1, replace the parts in the clamping sleeve 1 or repair the clamping sleeve 1, thereby improving the usability of the operator.

[0025] In other embodiments, a pressing member is arranged around the support block 3, and a support ring 22 is hot-melted on the end of the pressing member, and the surface of the support ring 22 is sleeved with an avoidance groove 28 opened on the surface of the turntable 11, and the support ring 22 and the avoidance groove 28 are attached to each other on one side, and a plurality of groups of resisting blocks 21 are hot-melted and attached, and the surfaces of the resisting blocks 21 are all sleeved with a resisting groove 23 opened on the inner wall of the avoidance groove 28, and the pressing member includes a connecting rod 6, a sleeve block 25, a second spring 26, a spring groove 27, a push rod 24 and a second sleeve ring 12, and a spring groove 27 is opened around the support block 3, and the inner wall of the spring groove 27 is respectively provided with sleeves The block 25 and the second spring 26, the ends of the second spring 26 are respectively abutted between the surface of the sleeve block 25 and the inner wall of the spring groove 27, the middle part of the sleeve block 25 is hot-melted with a push rod 24 that penetrates the spring groove 27, and the end of the push rod 24 is hot-melted with the support ring 22, the side walls of the sleeve block 25 are hot-melted with a connecting rod 6 that penetrates the clamping sleeve 1, and the end of the connecting rod 6 is hot-melted with a second sleeve ring 12 that is sleeved on the surface of the clamping sleeve 1. When the operator rotates the turntable 11, the operator first holds the hand on the surface of the second sleeve ring 12, and then the operator pulls the second sleeve ring 12, and the second sleeve ring The sleeve block 25 is driven to slide in the spring groove 27 through the connecting rod 6. When the sleeve block 25 slides in the spring groove 27, the sleeve block 25 squeezes the second spring 26, causing the second spring 26 to be elastically deformed. After the second spring 26 is elastically deformed, the second spring 26 avoids the sleeve block 25, so that the sleeve block 25 drives the support ring 22 to move through the push rod 24, so that the support ring 22 moves out of the avoidance groove 28, and the support ring 22 drives the abutment block 21 to move, so that the support ring 22 is separated from the abutment groove 23. After the support ring 22 and the abutment groove 23 no longer abut each other, the turntable 11 can be The second spring 26 is elastically deformed and restored, and the second spring 26 pushes the push rod 24 to move, so that the push rod 24 drives the abutment 21 to move, and the push rod 24 is inserted into the avoidance groove 28. The push rod 24 drives the supporting ring 22 and the abutment 21 to abut against each other, thereby fixing the position of the turntable 11 to prevent the turntable 11 from arbitrarily driving the splint 10 to move when the operator is in use, thereby improving the stability of the splint 10 when in use.

[0026] In other embodiments, a push plate 7 is welded on the surface of the second ring 12, and a plurality of wavy grooves are provided on the surface of the push plate 7. When the operator pulls the second ring 12 to move, the operator holds his hand on the surface of the second ring 12, and when the operator pulls the second ring 12 to move downward, the push plate 7 fixed at the bottom end of the second ring 12 supports the operator's hand to prevent the operator's hand from falling off the surface of the second ring 12 when the operator pulls the second ring 12 to move downward.

[0027] Although the 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. A pressure sensor test fixture, comprising a clamping sleeve (1) and a base plate (2), characterized in that: A bottom plate (2) is installed at the end of the clamping sleeve (1), a support block (3) is fixed on the surface of the bottom plate (2), and a rotation groove (5) is opened in the middle of the support block (3), a rotation rod (4) is inserted in the middle of the rotation groove (5), and a rotating disk (11) inserted in the clamping sleeve (1) is fixed at the end of the rotating rod (4), guide grooves (29) are opened around the rotating disk (11), and guide blocks (30) are embedded in the guide grooves (29), and clamps (10) passing through the clamping sleeve (1) are fixed on the surface of the guide blocks (30), and connecting blocks (9) passing through the side walls of the clamping sleeve (1) are fixed on the side walls around the rotating disk (11), and a first ring (8) sleeved on the surface of the clamping sleeve (1) is fixed at the end of the connecting block (9).

2. A pressure sensor test fixture according to claim 1, characterized in that: The bottom plate (2) is provided with a slide groove (17) around the periphery, and the slide groove (17) is embedded with a slider (20), the middle of the slider (20) is penetrated by a traction rod (16) fixed on the inner wall of the slide groove (17), and the surface of the traction rod (16) is wound with a first spring (15) respectively abutting between the surface of the slider (20) and the inner wall of the slide groove (17), the surface of the slider (20) is fixed with a positioning pin (18) penetrating the slide groove (17), and the surface of the positioning pin (18) is sleeved with a slot (19) provided on the inner wall of the clamping sleeve (1), and the other end of the slider (20) is fixed with a pulling block (13), and the surface of the pulling block (13) is sleeved with a traction groove (14) provided on the bottom plate (2).

3. A pressure sensor test fixture according to claim 2, characterized in that: The middle part of the pulling block (13) is arranged as an arc-shaped groove, and a plurality of groups of semicircular protrusions are fixed on the surface of the arc-shaped groove opened in the middle part of the pulling block (13).

4. A pressure sensor test fixture according to claim 1, characterized in that: The support block (3) is provided with a pressing member around its periphery, and a support ring (22) is fixed to the end of the pressing member, and the surface of the support ring (22) is provided with an avoidance groove (28) opened on the surface of the turntable (11), and a plurality of groups of resisting blocks (21) are fixed on one side where the support ring (22) and the avoidance groove (28) are in contact with each other, and the surfaces of the resisting blocks (21) are all provided with a resisting groove (23) opened on the inner wall of the avoidance groove (28).

5. A pressure sensor test fixture according to claim 4, characterized in that: The pressing component comprises a connecting rod (6), a sleeve block (25), a second spring (26), a spring groove (27), a push rod (24) and a second sleeve ring (12). The support block (3) is provided with spring grooves (27) around the support block, and the inner wall of the spring groove (27) is respectively provided with a sleeve block (25) and a second spring (26). The ends of both sides of the second spring (26) are respectively abutted between the surface of the sleeve block (25) and the inner wall of the spring groove (27). A push rod (24) penetrating the spring groove (27) is fixed in the middle of the sleeve block (25), and the end of the push rod (24) is fixed on the support ring (22). The side walls of the sleeve block (25) are all fixed with connecting rods (6) penetrating the clamping sleeve (1), and the end of the connecting rod (6) is fixed with a second sleeve ring (12) sleeved on the surface of the clamping sleeve (1).

6. A pressure sensor test fixture according to claim 5, characterized in that: A push plate (7) is fixed on the surface of the second sleeve ring (12), and a plurality of groups of wave-shaped grooves are formed on the surface of the push plate (7).

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