An assembly tooling for processing a pressure sensor

Abstract

The present invention discloses an assembly tool for processing a pressure sensor, comprising a base plate and a support frame, wherein the upper right end of the base plate is connected to the support frame, and a movable plate is provided on the lower side of the support frame, and the upper end of the movable plate is bolted to a servo motor, the lower end of the servo motor is keyed to a vertical shaft, a linear bearing is installed at the lower end of the support frame, and the lower end of the vertical shaft passes through the linear bearing, and the lower end of the vertical shaft is fixedly connected to a mounting block. The assembly tool for processing a pressure sensor can drive the upper cover of the sensor to move vertically and rotate through a lifting structure, so that it is convenient to simultaneously perform a threaded connection when in contact with the pressure sensor. The clamping mechanism can ensure that the pressure sensor and the center position of the sensor upper cover are the same, ensuring normal threaded connection without damaging the internal thread, and limiting the rotation of the pressure sensor by two sets of fixed rods. When clamped by a sliding block, it can rotate normally without damaging the outer wall of the pressure sensor.

Description

Technical Field

[0001] The present invention relates to the technical field of pressure sensor production, in particular to an assembly tool for processing pressure sensors. Background Art

[0002] Pressure sensors are the most commonly used sensors in industrial practice. They are widely used in various industrial automation environments, involving many industries such as water conservancy and hydropower, railway transportation, intelligent buildings, production automation, aerospace, military industry, petrochemicals, oil wells, electric power, ships, machine tools, pipelines, etc. Usually, when assembling the outer shell of the pressure sensor, special assembly tooling is required. However, the existing assembly tooling still has certain problems:

[0003] 1. When assembling the pressure sensor, the existing assembly tooling cannot reliably fix the pressure sensor because the bottom of the pressure sensor is round. In addition, when rotating the sensor cover, it is easy to cause wear on the clamping part of the pressure sensor.

[0004] 2. When the existing assembly tooling for pressure sensor processing is used to fix the circular pressure sensor, it is impossible to accurately locate the center position of the circle. When installing the upper cover, it is easy to cause damage to the internal threads, resulting in poor sealing and other effects, which shortens the service life of the pressure sensor.

[0005] Therefore, an assembly tool for pressure sensor processing is needed to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to provide an assembly tool for processing pressure sensors to solve the problems raised in the above background technology that the existing assembly tool for processing pressure sensors is prone to cause wear on the clamping part of the pressure sensor when using the sensor cover to install the sensor cover, and the cover and the sensor cannot be accurately engaged with the threaded connection during installation.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] An assembly tool for processing a pressure sensor: comprising a base plate, a support frame connected to the upper right end of the base plate, a movable plate provided on the lower side of the support frame, and a servo motor bolted to the upper end of the movable plate;

[0009] The lower end of the servo motor is key-connected with a vertical shaft, the lower end of the support frame is installed with a linear bearing, and the lower end of the vertical shaft passes through the linear bearing;

[0010] The lower end of the vertical shaft is fixedly connected to a mounting block, and the lower end of the mounting block is provided with an upper cover fixing mechanism, and the upper cover fixing mechanism is used to fix the sensor upper cover;

[0011] The movable plate is provided with a lifting adjustment mechanism inside, and the lifting adjustment mechanism is used to vertically adjust the height of the upper cover fixing mechanism;

[0012] A worm is connected to the bottom plate through the bearing, and a second threaded rod is connected to the end of the worm;

[0013] A driving disk is provided inside the bottom plate, and a transmission mechanism is provided at the rear end of the second threaded rod, and the transmission mechanism is used for the second threaded rod to drive the driving disk to rotate;

[0014] A sliding groove is provided on the upper end of the bottom plate, and a clamping mechanism is provided inside the bottom plate, and the clamping mechanism is used to fix the sensor body.

[0015] Preferably, the fixing structure includes a mounting slot;

[0016] The mounting groove is opened at the lower end of the mounting block, and a sensor cover is provided inside the mounting groove, and a pneumatic suction cup is provided inside the mounting groove;

[0017] The mounting groove is connected by snapping with the mounting block, and the mounting groove is matched with the groove at the upper end of the sensor cover, and the upper end of the mounting block is fitted with the air pressure suction cup.

[0018] By adopting the above technical solution, the installation groove is matched with the groove on the upper end of the sensor cover, which can limit the rotation of the sensor cover inside the installation groove during installation, and at the same time determine the center position of the sensor cover to prevent deviation.

[0019] Preferably, the lifting and adjusting mechanism includes a first gear;

[0020] A first gear is provided inside the movable plate, and the upper end of the vertical shaft passes through the first gear, and the vertical shaft is fixedly connected to the first gear;

[0021] A second gear is provided inside the movable plate, and a connecting pipe is connected to the inside of the second gear, the upper end of the connecting pipe passes through the movable plate, and the connecting pipe is connected to the rolling bearing of the movable plate;

[0022] The first gear is meshed with the second gear, and the diameter of the first gear is smaller than the diameter of the second gear.

[0023] By adopting the above technical solution, the rotation of the first gear drives the second gear to rotate, and the second gear drives the connecting pipe to rotate inside the movable plate.

[0024] Preferably, the connecting pipe is provided with a thread inside, the upper end of the support frame is fixedly connected to a first threaded rod, and the first threaded rod is threadedly connected to the connecting pipe;

[0025] There are two groups of first threaded rods, and the thread directions of the two groups of first threaded rods are the same.

[0026] By adopting the above technical solution, the connecting tube cooperates with the first threaded rod, and when the connecting tube rotates, the movable plate is driven to move in the vertical direction.

[0027] Preferred;

[0028] The end of the second threaded rod is threadedly connected to a movable block, and the end surface of the movable block is connected to a rack;

[0029] The lower end shaft inside the bottom plate is connected to a third gear, and the third gear is meshed with the rack;

[0030] The upper end of the third gear is connected to a driving disk, and the driving disk and the third gear form a coaxial rotation structure.

[0031] By adopting the above technical solution, the second threaded rod is rotated by rotating the worm, and the rack is driven to move through the movable block, thereby driving the third gear and the drive disc to rotate synchronously.

[0032] Preferably, a plurality of first limiting grooves are provided inside the driving disk and are multi-rotationally symmetrical along the central axis of the driving disk; the first limiting grooves are arc-shaped, one end of which extends to one radial end of the driving disk and the other end extends to the other radial end of the driving disk.

[0033] By adopting the above technical solution, the sliding guide rod can slide inside the first limiting groove, and the first limiting groove moves synchronously when the driving disk rotates.

[0034] Preferably, the clamping structure includes a sliding block;

[0035] A plurality of sliding blocks are slidably arranged inside the sliding groove, and a plurality of radial guide rods are evenly distributed around the axial direction of the third gear. The plurality of radial guide rods correspond to each other one by one and can slide through the plurality of sliding blocks.

[0036] The sliding block is designed in a "T"-shaped structure, and the lower end of the sliding block is fixedly connected to the upper end of the sliding guide rod.

[0037] By adopting the above technical solution, the radial guide rod is set to limit the sliding groove from the sliding groove. At the same time, when the first limit groove rotates, the sliding guide rod and the sliding block are pushed to slide inside the sliding groove to adjust the position between multiple groups of sliding blocks.

[0038] Preferably, a fixing groove is formed at the upper end of the sliding block, and rollers are connected to the inner shaft of the fixing groove, and the rollers are distributed in an arc-shaped array inside the fixing groove.

[0039] By adopting the above technical solution and setting up multiple sets of rollers, the pressure sensor can rotate normally after being clamped, preventing damage to the outer wall of the pressure sensor when installing the sensor cover due to excessive clamping.

[0040] Preferably, the internal shaft of the base plate is connected to a worm gear, and the worm gear is meshed with the worm, and the worm gear and the worm form a rotating structure.

[0041] By adopting the above technical solution, the worm gear can be driven to rotate synchronously by rotating the worm.

[0042] Preferably, the upper end of the worm gear is connected to a fixing rod, and a second limiting groove is provided on the upper surface of the bottom plate. The second limiting groove is designed in an arc-shaped structure, and the upper end of the fixing rod passes through the second limiting groove.

[0043] By adopting the above technical solution, the rotation of the worm gear can drive the fixing rod to rotate inside the second limiting groove. The two sets of fixing rods can limit the lower side of the pressure sensor to prevent rotation when installing the sensor cover.

[0044] Compared with the prior art, the beneficial effects of the present invention are as follows: the assembly tool for processing the pressure sensor can drive the sensor cover to move vertically and rotate through the lifting structure, which is convenient for simultaneous threaded connection when in contact with the pressure sensor, and can drive multiple sets of sliding blocks inside the clamping structure to slide synchronously through the transmission structure, and can keep the pressure sensor and the sensor cover at the same center position during clamping, ensuring normal threaded connection without damaging the internal threads. The clamping mechanism limits the rotation of the pressure sensor through two sets of fixed rods, and the sliding blocks can rotate normally when clamping without damaging the outer wall of the pressure sensor.

[0045] 1. After the upper cover of the sensor is fixed and limited by the upper cover fixing mechanism, the servo motor drives the first gear and the vertical shaft to rotate. The rotation of the first gear simultaneously drives the second gear and the connecting pipe to rotate. Through the cooperation of the connecting pipe and the first threaded rod, the movable plate is driven to move downward, thereby driving the mounting block and the upper cover of the sensor to move downward. When in contact with the pressure sensor, it can be threadedly connected with it, so that the sensor rotates and descends at the same time, improving the efficiency of assembly;

[0046] 2. The rotating worm can drive the second threaded rod to rotate synchronously, and the second threaded rod drives the movable block and the rack to move. When the rack moves, the driving disk is driven to rotate synchronously through the first gear. Since the upper end of the sliding guide rod is connected to the sliding block, when the driving disk rotates, it can push the sliding guide rod to slide inside the first limiting groove, thereby driving the sliding block to move inside the sliding groove. Since the second threaded rod and the movable block are self-locking, the reliability of the clamping mechanism is improved.

[0047] 3. By adjusting the positions of multiple sets of sliding blocks, the pressure sensor with a circular bottom can be limited and clamped, which is convenient for determining the center position of the pressure sensor and preventing damage to the internal thread due to offset installation. Because a roller is provided inside the sliding block, the pressure sensor can rotate normally after clamping and limiting, preventing wear at the connection between the pressure sensor and the sliding block due to excessive torque when rotating the sensor cover, which is convenient for protecting the pressure sensor during assembly. When the worm rotates, the worm wheel drives the fixed rod to move inside the second sliding groove, limiting the connecting pipe on the outer wall of the pressure sensor, thereby limiting the rotation of the pressure sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 It is a schematic diagram of the front view structure of the present invention;

[0049] Figure 2 This is a schematic diagram of the connection structure between the mounting slot and the sensor cover of the present invention;

[0050] Figure 3 This is a schematic diagram of the connection structure between the first gear and the second gear of the present invention;

[0051] Figure 4 This is a schematic diagram of the connection structure between the rack and the third gear of the present invention;

[0052] Figure 5 This is a schematic diagram of the connection structure between the sliding guide rod and the first limiting groove of the present invention;

[0053] Figure 6 This is a schematic diagram of the connection structure between the radial guide rod and the sliding block of the present invention;

[0054] Figure 7 This is a schematic diagram of the connection structure between the fixing groove and the roller of the present invention;

[0055] Figure 8 It is a schematic diagram of the connection structure between the fixing rod and the second limiting groove of the present invention.

[0056] In the figure: 1. Base plate; 2. Support frame; 3. Movable plate; 4. Servo motor; 5. Vertical axis; 6. Linear bearing; 7. Mounting block; 8. Mounting slot; 9. Sensor cover; 10. Pneumatic suction cup; 11. First gear; 12. Second gear; 13. Connecting pipe; 14. First threaded rod; 15. Worm; 16. Second threaded rod; 17. Movable block; 18. Rack; 19. Third gear; 20. Drive disk; 21. First limiting slot; 22. Sliding guide rod; 23. Sliding slot; 24. Sliding block; 25. Radial guide rod; 26. Fixed slot; 27. Roller; 28. Worm gear; 29. Fixed rod; 30. Second limiting slot. DETAILED DESCRIPTION

[0057] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0058] See also Figure 1-8 , the present invention provides a technical solution:

[0059] An assembly tool for processing a pressure sensor includes a base plate 1, a support frame 2 is connected to the upper right end of the base plate 1, and a movable plate 3 is provided on the lower side of the support frame 2, and the upper end of the movable plate 3 is bolted to a servo motor 4, and the lower end of the servo motor 4 is keyed to a vertical shaft 5, a linear bearing 6 is installed at the lower end of the support frame 2, and the lower end of the vertical shaft 5 passes through the linear bearing 6, and the lower end of the vertical shaft 5 is fixedly connected to a mounting block 7, a mounting groove 8 is provided at the lower end of the mounting block 7, and a sensor cover 9 is provided inside the mounting groove 8, and a pneumatic suction cup 10 is provided inside the mounting groove 8, and the mounting groove 8 is consistent with the groove at the upper end of the sensor cover 9, and the upper end of the mounting block 7 is in contact with the pneumatic suction cup 10. When assembling the pressure sensor, the sensor cover 9 is placed inside the mounting groove 8, and the pneumatic suction cup 10 can adsorb the sensor cover 9, and the mounting groove 8 is consistent with the groove at the upper end of the sensor cover 9, which can determine the center of the sensor cover 9 and limit its rotation.

[0060] A first gear 11 is provided inside the movable plate 3, and the upper end of the vertical shaft 5 passes through and is fixedly connected to the first gear 11. A second gear 12 is provided inside the movable plate 3, and a connecting pipe 13 passes through and is fixedly connected to the second gear 12. The upper end of the connecting pipe 13 passes through the movable plate 3, and the connecting pipe 13 is connected to the movable plate 3 by a rolling bearing. The first gear 11 is meshed with the second gear 12, and the diameter of the first gear 11 is smaller than the diameter of the second gear 12; and a thread is provided inside the connecting pipe 13. A first threaded rod 14 is fixedly connected to the support frame 2, and the first threaded rod 14 is threadedly connected to the connecting pipe 13. Two groups of first threaded rods 14 are provided, and the thread directions of the two groups of first threaded rods 14 are the same. The servo motor 4 rotates to drive the vertical shaft 5 and the sensor cover 9 installed inside the mounting block 7 to rotate. At the same time, the first gear 11 connected to the upper end of the vertical shaft 5 drives the second gear 12 and the connecting pipe 13 to rotate synchronously. Through the cooperation of the connecting pipe 13 and the first threaded rod 14, when the connecting pipe 13 rotates, the movable plate 3 is driven to move in the vertical direction, and moves downward when the mounting block 7 rotates, and is threadedly connected with the sensor when it contacts it.

[0061] A worm 15 is connected to the bearing through the inside of the base plate 1, and the end of the worm 15 is connected to the second threaded rod 16; a drive disk 20 is provided inside the base plate 1, and a transmission mechanism is provided at the rear end of the second threaded rod 16, and the transmission mechanism is used for the second threaded rod 16 to drive the rotation of the drive disk 20; a movable block 17 is threadedly connected to the end of the second threaded rod 16, and the end face of the movable block 17 is connected to the rack 18, and the lower end shaft inside the base plate 1 is connected to the third gear 19, and the third gear 19 is meshed with the rack 18; the upper end of the third gear 19 is connected to the drive disk 20 inside the base plate 1, and the drive disk 20 and the third gear 19 constitute a coaxial rotation structure. The drive disc 20 has a first limiting groove 21 defined within it, and a sliding guide rod 22 is slidably connected thereto. The first limiting groove 21 is designed as an arcuate structure, with one end extending to one radial end of the drive disc 20 and the other end extending to the other radial end of the drive disc 20. The first limiting groove 21 is driven by the rotation of the drive disc 20, while the movement of the sliding block 24 is achieved by the first limiting groove 21 following the rotational position of the drive disc 20, causing the sliding guide rod 22 to move radially, thereby adjusting the position of the sliding block 24. Rotating the worm 15 drives the second threaded rod 16 connected to its end to rotate synchronously. This second threaded rod 16 drives the movable block 17 and rack 18, which in turn drives the third gear 19 to rotate, and in turn, the drive disc 20 to rotate synchronously.

[0062] A sliding groove 23 is defined at the top end of the base plate 1, and a clamping mechanism is provided within the base plate 1. A sliding block 24 is slidably connected within the sliding groove 23, and radial guide rods 25 are provided within the sliding groove 23. The sliding block 24 has a T-shaped structure, and the radial guide rods 25 extend through the interior of the sliding block 24 to form a sliding structure. The lower end of the sliding block 24 is fixedly connected to the upper end of the sliding guide rod 22. The arc-shaped first limiting groove 21, when rotated, pushes the sliding guide rod 22 and the sliding block 24 to slide within the sliding groove 23. When multiple groups of sliding blocks 24 slide within the sliding groove 23, they clamp and limit the pressure sensor, determining the center of the pressure sensor and ensuring that it aligns with the center of the sensor cover 9. Simultaneously, the radial guide rods 25 prevent the sliding block 24 from disengaging from the sliding groove 23.

[0063] The upper end of the sliding block 24 is provided with a fixing groove 26, and the internal axis of the fixing groove 26 is connected to a roller 27, and the rollers 27 are distributed in an arc array inside the fixing groove 26; the upper end of the worm gear 28 is connected to a fixing rod 29, and the upper end surface of the base plate 1 is provided with a second limiting groove 30, the second limiting groove 30 is designed in an arc-shaped structure, and the upper end of the fixing rod 29 passes through the second limiting groove 30; the contact end surface of the sliding block 24 with the pressure sensor is provided with a roller 27, so that the sliding block 24 can rotate normally when clamping the pressure sensor, preventing the sliding block 24 from causing wear on the outer wall of the pressure sensor during assembly due to excessive clamping. While adjusting the position of the sliding block 24, the rotation of the worm 15 can drive the worm gear 28 and the fixing rod 29 to rotate, and the external pipe of the pressure sensor is limited by two sets of fixing rods 29, thereby limiting the rotation of the pressure sensor, ensuring that no rotation occurs when the sensor cover 9 is rotated and installed. The content not described in detail in this specification belongs to the existing technology known to professional and technical personnel in this field.

[0064] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An assembly tool for pressure sensor processing, characterized by: It comprises a base plate (1), the upper right end of the base plate (1) is connected to a support frame (2), a movable plate (3) is provided on the lower side of the support frame (2), and a servo motor (4) is bolted to the upper end of the movable plate (3); A vertical shaft (5) is coaxially fixed on the motor shaft of the servo motor (4), a linear bearing (6) is installed at the lower end of the support frame (2), and the vertical shaft (5) is vertically slidably arranged on the support frame (2) through the linear bearing (6); The lower end of the vertical shaft (5) is fixedly connected to a mounting block (7), and the lower end of the mounting block (7) is provided with an upper cover fixing mechanism, and the upper cover fixing mechanism is used to fix the sensor upper cover (9); The movable plate (3) is provided with a lifting and adjusting mechanism inside, and the lifting and adjusting mechanism is used to vertically adjust the height of the upper cover fixing mechanism; The lifting and lowering adjustment mechanism includes a first gear (11); A first gear (11) is provided inside the movable plate (3), and the upper end of the vertical shaft (5) passes through the first gear (11), and the vertical shaft (5) is fixedly connected to the first gear (11); A second gear (12) is provided inside the movable plate (3), and a connecting pipe (13) is connected to the inside of the second gear (12), the upper end of the connecting pipe (13) passes through the movable plate (3), and the connecting pipe (13) is connected to the rolling bearing of the movable plate (3); The first gear (11) is meshed with the second gear (12), and the diameter of the first gear (11) is smaller than the diameter of the second gear (12); The connecting pipe (13) is provided with a thread inside, the upper end of the support frame (2) is fixedly connected to a first threaded rod (14), and the first threaded rod (14) is threadedly connected to the connecting pipe (13); Two groups of the first threaded rods (14) are provided, and the thread directions of the two groups of first threaded rods (14) are the same; A worm (15) is passed through the interior of the base plate (1), and a second threaded rod (16) is connected to the rear end of the worm (15); A driving disk (20) is provided inside the base plate (1), and a transmission mechanism is provided at the rear end of the second threaded rod (16), and the transmission mechanism is used for the second threaded rod (16) to drive the driving disk (20) to rotate; The end of the second threaded rod (16) is threadedly connected to a movable block (17), and the end surface of the movable block (17) is connected to a rack (18); The lower end shaft inside the base plate (1) is connected to a third gear (19), and the third gear (19) is meshed and connected with the rack (18); The upper end of the third gear (19) is connected to a driving disc (20), and the driving disc (20) and the third gear (19) are coaxially fixed; A sliding groove (23) is provided at the upper end of the base plate (1), and a clamping mechanism is provided inside the base plate (1), and the clamping mechanism is used to fix the sensor body; The clamping mechanism includes a sliding block (24); A plurality of sliding blocks (24) are slidably arranged inside the sliding groove (23), and the driving disk (20) rotates to drive the sliding blocks (24) to move radially; A fixing groove (26) is provided at the upper end of the sliding block (24), and a roller (27) is connected to the inner axis of the fixing groove (26), and the rollers (27) are distributed in an arc array inside the fixing groove (26); The inner shaft of the base plate (1) is connected to a worm wheel (28), and the worm wheel (28) is meshed with the worm (15), and the worm wheel (28) and the worm (15) form a rotating structure; The upper end of the worm wheel (28) is connected to a fixing rod (29), and the upper end surface of the bottom plate (1) is provided with a second limiting groove (30), the second limiting groove (30) is designed in an arc-shaped structure, and the upper end of the fixing rod (29) passes through the second limiting groove (30).

2. The assembly tool for pressure sensor processing according to claim 1, characterized in that: The upper cover fixing mechanism includes a mounting groove (8); The mounting groove (8) is opened at the lower end of the mounting block (7), and a sensor cover (9) is provided inside the mounting groove (8); A pneumatic suction cup (10) is provided inside the mounting groove (8); The mounting groove (8) is snap-connected with the mounting block (7), and the mounting groove (8) is matched with the upper end of the sensor cover (9).

3. The assembly tool for processing a pressure sensor according to claim 1, characterized in that: A plurality of first limiting grooves (21) are provided inside the driving disk (20) and are multi-rotationally symmetrical along the central axis of the driving disk (20); the first limiting grooves (21) are arc-shaped, one end of which extends to one radial end of the driving disk (20) and the other end of which extends to the other radial end of the driving disk (20).

4. The assembly tool for processing a pressure sensor according to claim 1, characterized in that: A plurality of radial guide rods (25) are arranged inside the sliding groove (23) and are evenly distributed around the axial direction of the third gear (19). The plurality of radial guide rods (25) correspond to each other and can slide through the plurality of sliding blocks (24). The sliding block (24) is designed in a "T"-shaped structure, and the lower end of the sliding block (24) is fixedly connected to the upper end of the sliding guide rod (22).

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