CN117182535A - Equipment for assembling valve core and O-shaped ring - Google Patents

Abstract

The invention provides equipment for assembling a valve core and an O-shaped ring, which comprises a frame, wherein a first feeding mechanism, a second feeding mechanism, a moving mechanism, an expanding mechanism and a sleeving mechanism are arranged on the frame, the moving mechanism comprises a first material taking shaft and a first driving part, the first material taking shaft is connected to the output end of the first driving part, the first driving part drives the first material taking shaft to move vertically and transversely, the expanding mechanism is used for expanding the O-shaped ring so as to expand the inner hole of the O-shaped ring, the expanding mechanism is positioned on the moving path of the output end of the first driving part, the sleeving mechanism comprises a second material taking shaft and a pushing part, the second material taking shaft and the pushing part are connected to the output end of the first driving part, the second material taking shaft takes the expanded O-shaped ring out of the expanding mechanism through the movement of the output end of the first driving part, and the pushing part is used for pushing the O-shaped ring in a ring groove and sleeving the O-shaped ring on the valve core. The equipment is automatically operated, so that the assembly efficiency and quality are improved, and the labor intensity of workers is reduced.

Description

Equipment for assembling valve core and O-shaped ring

Technical Field

The invention relates to the technical field of automatic assembly, in particular to an assembly device for a valve core and an O-shaped ring.

Background

Solenoid valves are devices that utilize electromagnetic principles to control the flow of fluids. The valve body is normally composed of an electromagnetic exciter and a valve body, and the opening and closing of the valve body are controlled through the action of electromagnetic force, so that the control of fluid is realized. The electromagnetic valve works in the principle that the movement of the valve core is controlled by utilizing the magnetic field generated by the electromagnetic coil. When the valve is electrified, the electromagnetic coil generates a magnetic field, so that the valve core is separated from the valve seat under the action of magnetic force, and fluid can pass through the valve core; when the power is off, the magnetic field disappears, the valve core is restored to the original position under the action of the spring and the like, the valve seat is closed, and the fluid stops passing. Solenoid valves are widely used in various industrial fields and devices for controlling the flow, pressure and direction of a liquid or gas. They play an important role in the industries of automation systems, water supply systems, heating ventilation and air conditioning systems, metallurgy, chemical industry, food processing and the like. The valve core of the electromagnetic valve is commonly used for sealing liquid or gas medium in the electromagnetic valve, ensuring the normal operation of the electromagnetic valve and preventing leakage. An O-ring is an annular rubber seal with excellent elasticity and chemical resistance, which is commonly used for sealing valve spools. At present, the O-shaped rings on the valve core are generally sleeved on the valve core one by workers by adopting a manual sleeving process, so that the installation efficiency and quality are seriously affected.

Disclosure of Invention

The invention mainly aims to provide equipment for assembling a valve core and an O-shaped ring, which comprises but is not limited to solving the technical problems of low installation efficiency and low quality in the prior art.

In order to solve the technical problems, the invention adopts the following technical scheme: the equipment for assembling the valve core and the O-shaped ring comprises a frame, wherein a first feeding mechanism for supplying the valve core and a second feeding mechanism for supplying the O-shaped ring are arranged on the frame, and a moving mechanism, an expanding mechanism and a sleeving mechanism are also arranged on the frame; the moving mechanism is arranged between the first feeding mechanism and the second feeding mechanism and comprises a first material taking shaft and a first driving part, the outer diameter of the first material taking shaft is larger than the bore diameter of the inner bore of the O-shaped ring, the first material taking shaft is connected to the output end of the first driving part, the first driving part is arranged on the frame, and the first driving part drives the first material taking shaft to move vertically and transversely; the expansion mechanism is arranged between the first feeding mechanism and the second feeding mechanism and is used for expanding the O-shaped ring to expand an inner hole of the O-shaped ring, and the expansion mechanism is positioned on a moving path of the output end of the first driving part; the sleeving mechanism comprises a second material taking shaft and a pushing part, wherein the second material taking shaft and the pushing part are both connected to the output end of the first driving part, an annular groove for embedding an O-shaped ring is formed in the outer wall of the second material taking shaft, the depth of the annular groove is smaller than the section diameter of the O-shaped ring, the second material taking shaft takes out the expanded O-shaped ring from the expanding mechanism through the movement of the output end of the first driving part, and the pushing part is used for pushing out the O-shaped ring in the annular groove and sleeving the O-shaped ring on the valve core.

The beneficial effects of the invention are as follows: through setting up first extracting shaft and first drive portion, make the O type circle by effective removal to expansion mechanism from second feeding mechanism, expansion mechanism makes the hole aperture of O type circle grow up, replace artifical expansion O type circle, avoid making O type circle damaged, set up second extracting shaft and pushing part, the epaxial annular of second extracting can keep the expansion state of O type circle, and under the drive of pushing part, make the O type circle after the expansion by effective cover go into on the case, whole installation is automatic goes on, improve case and O type circle's packaging efficiency and quality greatly, reduce workman's intensity of labour.

Preferably, the expansion mechanism comprises a base, a positioning hole for positioning the O-shaped ring is formed in the base, a material taking shaft for positioning Kong Gongdi is inserted into the base, a plurality of groups of chucks are arranged on the base, the chucks are circumferentially distributed on the outer side of the positioning hole and used for clamping the O-shaped ring, and a second driving part for driving the chucks to be close to or far away from the positioning hole is further arranged on the base. Through adopting above-mentioned structure, realize that the O type circle is by effective expansion, set up the locating hole, can pinpoint the O type circle, improve the precision of expansion action.

Preferably, the clamping head comprises a first clamping block and a second clamping block, the middle part of the second clamping block is hinged to the first clamping block through a pin shaft, the O-shaped ring is clamped between the upper end of the second clamping block and the first clamping block, and when the lower end of the second clamping block is outwards opened, the second clamping block rotates around the pin shaft, so that the distance between the upper end of the second clamping block and the first clamping block is reduced, and the O-shaped ring is clamped. Through adopting above-mentioned structure, realize the stable centre gripping to O type circle, improve the stability of expansion action.

Preferably, the second driving part comprises a roller, a sliding block and a pull-down cylinder, the cylinder body of the pull-down cylinder is fixedly connected to the base, the piston rod of the pull-down cylinder is fixedly connected with the sliding block, the sliding block is vertically arranged on the base in a sliding manner, the roller is rotationally connected to the sliding block, the lower end of the second clamping block is provided with a groove matched with the roller, the lower groove wall of the groove is obliquely arranged from top to bottom towards the central axis of the base, and when the piston rod of the pull-down cylinder moves downwards, the sliding block drives the roller to move downwards, and the roller rolls on the lower groove wall of the groove to enable the lower end of the second clamping block to be outwards opened; the first clamping blocks are connected to the base along the radial movement of the positioning holes, and the second clamping blocks drive the first clamping blocks to move away from the positioning holes after the rollers continue to move downwards. Through adopting above-mentioned structure, realize outwards opening second clamp splice lower extreme to drive first clamp splice and keep away from the locating hole and remove, structural connection is stable, and the operation is reliable, improves the reliability of expansion action.

Preferably, the second driving part further comprises a return spring, one end of the return spring is connected with the base, and the other end of the return spring is connected with the first clamping block so as to enable the first clamping block to move towards the positioning hole. Through adopting above-mentioned structure, make the chuck remove towards the locating hole, make things convenient for the chuck to reset fast, do benefit to the expansion operation of next O type circle.

Preferably, the pushing part comprises a sleeve and a pushing cylinder, the sleeve is slidably sleeved on the second material taking shaft, the sleeve is fixedly connected with a piston rod of the pushing cylinder, and a cylinder body of the pushing cylinder is fixedly arranged at the output end of the first driving part. Through adopting above-mentioned structure, realize pushing part's effective promotion, improve the suit stability of O type circle.

Preferably, the first feeding mechanism comprises a first vibrating disk, a first feeding track and a reversing device, wherein the first vibrating disk is fixedly arranged on the frame, the valve core is arranged in the first vibrating disk, the first feeding track is connected with the first vibrating disk so that the valve cores are orderly arranged for discharging, the reversing device is located at the discharging end of the first feeding track, and the reversing device is used for enabling the valve core to turn to match the sleeving direction of the O-shaped ring. Through adopting above-mentioned structure, realize the effective feed of case, set up the switching-over device, improve suit efficiency.

Preferably, the reversing device comprises a pneumatic claw disc, a rotary cylinder and a lifting part, wherein the pneumatic claw disc is used for clamping the end part of the valve core, the pneumatic claw disc is connected to the rotating shaft of the rotary cylinder, the cylinder body of the rotary cylinder is connected with the output end of the lifting part, and the lifting part is arranged on the frame and used for adjusting the height. By adopting the structure, the valve core can be reliably commutated, and the commutating stability is improved.

Preferably, a clamping device for clamping valve cores one by one is arranged between the first feeding track and the reversing device, the clamping device comprises a vertical frame, a moving cylinder, a clamping cylinder and clamping jaws, the clamping jaws are connected to the output end of the clamping cylinder, the cylinder body of the clamping cylinder is connected to the output end of the moving cylinder, the moving cylinder is arranged on the vertical frame, the vertical frame is arranged on the frame, and the moving cylinder is used for enabling the valve cores to move towards the reversing device. Through adopting above-mentioned structure, when making the case on the reversing device when the suit O type circle, the device is got to clamp can also stabilize the material loading, improves the material loading efficiency of case.

Preferably, the clamping device further comprises a limiting swing rod, the limiting swing rod is L-shaped, the bending part of the limiting swing rod is hinged to the output end of the movable cylinder through a rotating shaft, a long rod of the limiting swing rod is used for limiting and leaning against the valve core, a short rod of the limiting swing rod is connected with a third driving part used for enabling the limiting swing rod to rotate around the rotating shaft, the third driving part comprises a resisting plate fixed on the vertical frame, a first contact surface and a second contact surface for leaning against the short rod are arranged on the resisting plate, transition is carried out between the first contact surface and the second contact surface through an arc surface, when the short rod butts against the first contact surface, the long rod butts against the valve core, and when the short rod butts against the second contact surface, the long rod is far away from the valve core. Through adopting above-mentioned structure, make the case obtain effective spacing, avoid the case to get the device from pressing from both sides and drop, simultaneously after the stock kept away from the case, make things convenient for the grabbing of pneumatic claw dish to the case.

Drawings

FIG. 1 is a schematic view of an assembly apparatus of a valve cartridge and an O-ring of the present invention;

FIG. 2 is a schematic view of the first feeding mechanism;

fig. 3 is a schematic structural view of the reversing device;

FIG. 4 is a schematic view of the structure of the gripping device;

FIG. 5 is a schematic view of a second feed mechanism;

FIG. 6 is a schematic diagram of a movement mechanism;

FIG. 7 is a schematic structural view of the encasement mechanism;

FIG. 8 is a schematic view of a portion of the structure of the expansion mechanism;

FIG. 9 is a schematic illustration of a portion of a second embodiment of an expansion mechanism;

FIG. 10 is a first view of the use of the expansion mechanism;

FIG. 11 is a second view of the use of the expansion mechanism;

FIG. 12 is a third state of use of the expansion mechanism;

reference numerals illustrate:

1. a frame; 2. a first feeding mechanism; 21. a first vibration plate; 22. a first feed rail; 23. a reversing device; 231. a pneumatic claw disc; 232. a rotary cylinder; 233. a lifting part; 24. a clamping device; 241. a vertical frame; 242. a moving cylinder; 243. clamping an air cylinder; 244. a clamping jaw; 245. limiting swing rods; 246. a rotating shaft; 247. a retaining plate; 2471. a first contact surface; 2472. a second contact surface; 2473. an arc surface; 3. a second feeding mechanism; 31. a second vibration plate; 32. a second feed rail; 321. a limit baffle; 322. avoidance holes; 4. a moving mechanism; 41. a first take-out shaft; 42. a first driving section; 421. a bracket; 422. a lateral sliding cylinder; 423. a vertical sliding cylinder; 424. a slide; 5. an expansion mechanism; 51. a base; 511. positioning holes; 52. a chuck; 521. a first clamping block; 522. a second clamping block; 5221. a groove; 523. a pin shaft; 53. a second driving section; 531. a roller; 532. a slide block; 533. a pull-down cylinder; 534. a return spring; 6. a sleeving mechanism; 61. a second take-out shaft; 611. a ring groove; 62. a pushing part; 621. a sleeve; 622. a push-out cylinder; 10. a valve core; 20. an O-ring.

Detailed Description

In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

In the description of the present invention, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "left", "right", "front", "rear", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

As shown in fig. 1 to 12, the present embodiment provides an assembling apparatus of a valve cartridge and an O-ring, comprising a frame 1, on which a first feeding mechanism 2 for supplying the valve cartridge 10, a second feeding mechanism 3 for supplying the O-ring 20, a moving mechanism 4 for moving the O-ring 20, an expanding mechanism 5 for expanding the O-ring 20, and a sheathing mechanism 6 are mounted on the frame 1.

In this embodiment, the moving mechanism 4 is disposed between the first feeding mechanism 2 and the second feeding mechanism 3, the moving mechanism 4 includes a first material taking shaft 41 and a first driving portion 42, an outer diameter of the first material taking shaft 41 is larger than an inner hole diameter of the O-ring 20, the first material taking shaft 41 is connected to an output end of the first driving portion 42, the first driving portion 42 is mounted on the frame 1, and the first driving portion 42 drives the first material taking shaft 41 to move vertically and laterally. Specifically, the first driving portion 42 includes a support 421, a lateral sliding cylinder 422, a vertical sliding cylinder 423, and a slide 424, where the support 421 is fixedly installed on the frame 1, a fixing portion of the lateral sliding cylinder 422 is connected to the support 421, a moving portion of the lateral sliding cylinder 422 is connected to a fixing portion of the vertical sliding cylinder 423, a moving portion of the vertical sliding cylinder 423 is connected to the slide 424, and the slide 424 is connected to the first material taking shaft 41.

In this embodiment, the expansion mechanism 5 is disposed between the first feeding mechanism 2 and the second feeding mechanism 3, the expansion mechanism 5 is used for expanding the O-ring 20 to expand the inner hole of the O-ring 20, and the expansion mechanism 5 is located on the moving path of the slide 424. Specifically, the expansion mechanism 5 includes a base 51, a positioning hole 511 for positioning the O-ring 20 is provided on the base 51, the positioning hole 511 is configured for the first material taking shaft 41 to be inserted, four groups of chucks 52 are installed on the base 51, the four groups of chucks 52 are uniformly distributed on the outer side of the positioning hole 511 along the circumferential direction for clamping the O-ring 20, and a second driving portion 53 for driving the multiple groups of chucks 52 to approach or separate from the positioning hole 511 is further installed on the base 51; the clamping head 52 comprises a first clamping block 521 and a second clamping block 522, wherein the middle part of the second clamping block 522 is hinged on the first clamping block 521 through a pin shaft 523, the O-shaped ring 20 is clamped between the upper end of the second clamping block 522 and the first clamping block 521, and when the lower end of the second clamping block 522 is outwards opened, the second clamping block 522 rotates around the pin shaft 523, so that the distance between the upper end of the second clamping block 522 and the first clamping block 521 is reduced to clamp the O-shaped ring 20; the second driving portion 53 includes a roller 531, a slider 532, and a pull-down cylinder 533, where the cylinder body of the pull-down cylinder 533 is fixedly connected to the base 51, a piston rod of the pull-down cylinder 533 is fixedly connected to the slider 532, the slider 532 is slidably disposed on the base 51 along a vertical direction, the roller 531 is rotatably connected to the slider 532, a groove 5221 matching with the roller 531 is disposed at a lower end of the second clamping block 522, a lower groove wall of the groove 5221 is obliquely disposed from top to bottom toward a central axis of the base 51, and when the piston rod of the pull-down cylinder 533 moves downward, the slider 532 drives the roller 531 to move downward, and the roller 531 rolls on the lower groove wall of the groove 5221 to make the lower end of the second clamping block 522 open outwards; the first clamping block 521 is movably connected to the base 51 along the radial direction of the positioning hole 511, and the second clamping block 522 drives the first clamping block 521 to move away from the positioning hole 511 while continuing to move the roller 531 downward; the second driving part 53 further includes a return spring 534, one end of the return spring 534 is connected to the base 51, and the other end of the return spring 534 is connected to the first clamping block 521, so as to move the first clamping block 521 toward the positioning hole 511.

In this embodiment, the sleeving mechanism 6 includes a second material taking shaft 61 and a pushing portion 62, where the second material taking shaft 61 and the pushing portion 62 are both connected to the slide 424, an annular groove 611 in which the O-ring 20 is embedded is provided on an outer wall of the second material taking shaft 61, a depth of the annular groove 611 is smaller than a cross-sectional diameter of the O-ring 20, the second material taking shaft 61 takes the expanded O-ring 20 out of the expansion mechanism 5 through movement of an output end of the first driving portion 42, and the pushing portion 62 is used to push out and sleeve the O-ring 20 in the annular groove 611 onto the valve core 10. Specifically, the pushing portion 62 includes a sleeve 621 and a pushing cylinder 622, the sleeve 621 is slidably sleeved on the second material taking shaft 61, the sleeve 621 is fixedly connected with a piston rod of the pushing cylinder 622, and a cylinder body of the pushing cylinder 622 is fixedly mounted on the slide base 424.

In this embodiment, the first feeding mechanism 2 includes a first vibration disc 21, a first feeding track 22 and a reversing device 23, where the first vibration disc 21 is fixedly installed on the frame 1, the valve core 10 is placed in the first vibration disc 21, the first feeding track 22 is connected with the first vibration disc 21 to enable the valve cores 10 to be orderly arranged and discharged, the reversing device 23 is located at a discharge end of the first feeding track 22, and the reversing device 23 is used for turning the valve core 10 to match the nesting direction of the O-ring 20. Specifically, the reversing device 23 includes a pneumatic claw disc 231, a rotary cylinder 232, and a lifting part 233, where the pneumatic claw disc 231 is used to clamp an end of the valve core 10, the pneumatic claw disc 231 is connected to a rotation shaft of the rotary cylinder 232, a cylinder body of the rotary cylinder 232 is connected to an output end of the lifting part 233, and the lifting part 233 is installed on the frame 1 to adjust a height; the lifting part 233 comprises a screw rod, a lifting column, a guide frame and a motor.

In this embodiment, a clamping device 24 for clamping the valve cores 10 one by one is disposed between the first feeding rail 22 and the reversing device 23, the clamping device 24 includes a stand 241, a moving cylinder 242, a clamping cylinder 243 and a clamping jaw 244, the clamping jaw 244 is connected to an output end of the clamping cylinder 243, a cylinder body of the clamping cylinder 243 is connected to an output end of the moving cylinder 242, the moving cylinder 242 is mounted on the stand 241, the stand 241 is mounted on the frame 1, and the moving cylinder 242 is used for moving the valve cores 10 toward the reversing device 23. The clamping device 24 further comprises a limiting swing rod 245, the limiting swing rod 245 is in an L shape, the bending part of the limiting swing rod 245 is hinged to the output end of the moving cylinder 242 through a rotating shaft 246, a long rod of the limiting swing rod 245 is used for limiting and propping against the valve core 10, a short rod of the limiting swing rod 245 is connected with a third driving part used for enabling the limiting swing rod 245 to rotate around the rotating shaft 246, the third driving part comprises a bearing plate 247 fixed on the vertical frame 241, a first contact surface 2471 and a second contact surface 2472 for propping against the short rod are arranged on the bearing plate 247, the first contact surface 2471 and the second contact surface 2472 are in transition through an arc-shaped surface 2473, when the short rod is propped against the first contact surface 2471, the long rod is propped against the valve core 10, and when the short rod is propped against the second contact surface 2472, the long rod is far away from the valve core 10.

In this embodiment, the second feeding mechanism 3 includes second vibration dish 31 and second pay-off track 32, second vibration dish 31 fixed mounting is on frame 1, O type circle 20 is placed in second vibration dish 31, second pay-off track 32 is connected with second vibration dish 31 so that O type circle 20 ordered arrangement ejection of compact, the discharge end of second pay-off track 32 is equipped with limit baffle 321 and dodges hole 322, limit baffle 321 is used for preventing that O type circle 20 from deviating from the discharge end of second pay-off track 32, dodging the hole 322 and being used for dodging first extracting shaft 41, make things convenient for first extracting shaft 41 to insert the hole of O type circle 20.

The assembling process of the valve core and the O-shaped ring comprises the following steps: the O-shaped ring 20 moves to the discharge end of the second feeding track 32 through the second vibration disc 31, the first driving part 42 drives the first material taking shaft 41 to sleeve the O-shaped ring 20 on the first material taking shaft 41, the first driving part 42 moves the O-shaped ring 20 to the positioning hole 511 of the base 51, the second driving part 53 drives the plurality of groups of chucks 52 to operate so as to expand the inner hole of the O-shaped ring 20, and then the second material taking shaft 61 moves the expanded O-shaped ring 20 through the sliding seat 424 to be taken out from the expanding mechanism 5; simultaneously, the valve core 10 moves to the discharge end of the first feeding track 22 through the first vibration disc 21, the clamping device 24 clamps and conveys the valve core 10 to the reversing device 23, the reversing device 23 reverses the valve core 10, the valve core 10 is vertically arranged to match the sleeving direction of the O-shaped ring 20, finally, the sleeve 621 pushes out the O-shaped ring 20 and sleeves the O-shaped ring onto the valve core 10 through the operation of the push-out cylinder 622, so that automatic assembly is realized, and the assembly efficiency and quality are improved.

Although the present disclosure is described above, the scope of protection of the present disclosure is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the scope of the invention.

Claims (10)

1. The equipment for assembling the valve core and the O-shaped ring comprises a frame (1), wherein a first feeding mechanism (2) for supplying the valve core (10) and a second feeding mechanism (3) for supplying the O-shaped ring (20) are arranged on the frame (1), and the equipment is characterized in that a moving mechanism (4), an expanding mechanism (5) and a sleeving mechanism (6) are also arranged on the frame (1);

the moving mechanism (4) is arranged between the first feeding mechanism (2) and the second feeding mechanism (3), the moving mechanism (4) comprises a first material taking shaft (41) and a first driving part (42), the outer diameter of the first material taking shaft (41) is larger than the inner hole diameter of the O-shaped ring (20), the first material taking shaft (41) is connected to the output end of the first driving part (42), the first driving part (42) is arranged on the frame (1), and the first driving part (42) drives the first material taking shaft (41) to move vertically and transversely;

the expansion mechanism (5) is arranged between the first feeding mechanism (2) and the second feeding mechanism (3), the expansion mechanism (5) is used for expanding the O-shaped ring (20) to expand the inner hole of the O-shaped ring (20), and the expansion mechanism (5) is positioned on the moving path of the output end of the first driving part (42);

the suit mechanism (6) comprises a second material taking shaft (61) and a pushing part (62), the second material taking shaft (61) and the pushing part (62) are both connected to the output end of the first driving part (42), an annular groove (611) for embedding an O-shaped ring (20) is formed in the outer wall of the second material taking shaft (61), the depth of the annular groove (611) is smaller than the section diameter of the O-shaped ring (20), the second material taking shaft (61) takes out the expanded O-shaped ring (20) from the expansion mechanism (5) through the movement of the output end of the first driving part (42), and the pushing part (62) is used for pushing out the O-shaped ring (20) in the annular groove (611) and sleeving the O-shaped ring on the valve core (10).

2. The valve core and O-ring assembling device according to claim 1, wherein the expanding mechanism (5) comprises a base (51), a positioning hole (511) for positioning the O-ring (20) is formed in the base (51), the positioning hole (511) is used for inserting the first material taking shaft (41), a plurality of groups of chucks (52) are arranged on the base (51), the chucks (52) are circumferentially distributed on the outer side of the positioning hole (511) and used for clamping the O-ring (20), and a second driving part (53) for driving the chucks (52) to be close to or far away from the positioning hole (511) is further arranged on the base (51).

3. The spool and O-ring assembly device according to claim 2, wherein the collet (52) includes a first clamp block (521) and a second clamp block (522), a middle portion of the second clamp block (522) is hinged to the first clamp block (521) by a pin (523), the O-ring (20) is clamped between an upper end of the second clamp block (522) and the first clamp block (521), and when a lower end of the second clamp block (522) is opened outward, the second clamp block (522) rotates around the pin (523) such that a distance between the upper end of the second clamp block (522) and the first clamp block (521) is reduced to clamp the O-ring (20).

4. A valve core and O-ring assembling device according to claim 3, wherein the second driving part (53) comprises a roller (531), a sliding block (532) and a pull-down cylinder (533), the cylinder body of the pull-down cylinder (533) is fixedly connected to the base (51), the piston rod of the pull-down cylinder (533) is fixedly connected with the sliding block (532), the sliding block (532) is vertically and slidably arranged on the base (51), the roller (531) is rotatably connected to the sliding block (532), the lower end of the second clamping block (522) is provided with a groove (5221) matched with the roller (531), the lower groove wall of the groove (5221) is obliquely arranged from top to bottom towards the central axis of the base (51), when the piston rod of the pull-down cylinder (533) moves downwards, the sliding block (532) drives the roller (531) to move downwards, the roller (531) rolls on the lower groove wall of the groove (5221), and the lower end of the second clamping block (522) is outwards opened; the first clamping block (521) is connected to the base (51) along the radial movement of the positioning hole (511), and the second clamping block (522) drives the first clamping block (521) to move away from the positioning hole (511) when the roller (531) continues to move downwards.

5. The valve cartridge and O-ring assembling apparatus according to claim 4, wherein the second driving portion (53) further includes a return spring (534), one end of the return spring (534) is connected to the base (51), and the other end of the return spring (534) is connected to the first clamping block (521) for moving the first clamping block (521) toward the positioning hole (511).

6. The valve core and O-ring assembling apparatus according to claim 1, wherein the pushing portion (62) includes a sleeve (621) and a pushing cylinder (622), the sleeve (621) is slidably sleeved on the second material taking shaft (61), the sleeve (621) is fixedly connected with a piston rod of the pushing cylinder (622), and a cylinder body of the pushing cylinder (622) is fixedly mounted on an output end of the first driving portion (42).

7. The valve core and O-ring assembling device according to claim 1, wherein the first feeding mechanism (2) comprises a first vibrating disc (21), a first feeding track (22) and a reversing device (23), the first vibrating disc (21) is fixedly installed on the frame (1), the valve core (10) is placed in the first vibrating disc (21), the first feeding track (22) is connected with the first vibrating disc (21) to enable the valve core (10) to be orderly arranged and discharged, the reversing device (23) is located at the discharge end of the first feeding track (22), and the reversing device (23) is used for enabling the valve core (10) to be diverted so as to be matched with the sleeving direction of the O-ring (20).

8. The valve element and O-ring assembling apparatus according to claim 7, wherein the reversing device (23) includes a pneumatic claw disc (231), a rotary cylinder (232), and a lifting portion (233), the pneumatic claw disc (231) is used for clamping an end portion of the valve element (10), the pneumatic claw disc (231) is connected to a rotation shaft of the rotary cylinder (232), a cylinder body of the rotary cylinder (232) is connected to an output end of the lifting portion (233), and the lifting portion (233) is mounted on the frame (1) for adjusting the height.

9. The valve core and O-ring assembling apparatus according to claim 7, wherein a clamping device (24) for clamping the valve core (10) one by one is provided between the first feeding rail (22) and the reversing device (23), the clamping device (24) comprises a stand (241), a moving cylinder (242), a clamping cylinder (243) and a clamping jaw (244), the clamping jaw (244) is connected to an output end of the clamping cylinder (243), a cylinder body of the clamping cylinder (243) is connected to an output end of the moving cylinder (242), the moving cylinder (242) is mounted on the stand (241), the stand (241) is mounted on the frame (1), and the moving cylinder (242) is used for moving the valve core (10) toward the reversing device (23).

10. The equipment for assembling the valve core and the O-ring according to claim 9, wherein the clamping device (24) further comprises a limiting swing rod (245), the limiting swing rod (245) is in an L shape, a bending part of the limiting swing rod (245) is hinged on an output end of the moving cylinder (242) through a rotating shaft (246), a long rod of the limiting swing rod (245) is used for limiting and abutting the valve core (10), a short rod of the limiting swing rod (245) is connected with a third driving part used for enabling the limiting swing rod (245) to rotate around the rotating shaft (246), the third driving part comprises a retaining plate (247) fixed on the vertical frame (241), a first contact surface (2471) and a second contact surface (2472) for enabling the short rod to abut against are arranged on the retaining plate (247), the first contact surface (2471) and the second contact surface (2472) are in transition through an arc-shaped surface (2473), when the short rod abuts against the first contact surface (2471), the long rod abuts against the valve core (10), and the long rod abuts against the second contact surface (2472).