A polishing structure and ball valve production equipment

Abstract

The application relates to the field of ball valve production equipment, in particular to a polishing structure and ball valve production equipment, which comprises the following: the surface of a polishing base is provided with a clamp tool and a polishing module, one side of the polishing module is provided with a mounting base, the inside of the mounting base is provided with a guide rod and a connecting shaft, and the end of the guide rod is provided with a limiting ring; a telescopic base is inserted into the inside of the mounting base, the inner wall of the telescopic base is provided with a guide ring and a partition plate; a polishing piece is arranged at the end of the telescopic base, and the surface of the polishing piece is provided with a No.2 support; the ball valve ball body is clamped by the clamp tool, the ball valve ball body is driven to rotate at high speed by a motor, the polishing module is started, the polishing piece is attached to the surface of the ball valve ball body, the ball valve ball body is driven to rotate by the motor, meanwhile, the telescopic base drives multiple polishing pieces to rotate, the surface of the ball valve ball body is polished, the polishing piece is elastically arranged by a torsion spring, and the telescopic base is telescopic by inertia.

Description

Technical Field

[0001] This invention relates to the field of ball valve manufacturing equipment, specifically a grinding structure and ball valve manufacturing equipment. Background Technology

[0002] A ball valve is a type of valve in which the valve stem drives the valve to rotate around the ball valve axis. It can be used for the regulation and control of fluids. During the production of ball valves, the ball (the valve's opening and closing element) needs to be polished to ensure that the surface roughness of the ball meets the requirements.

[0003] Currently, grinding the ball of a ball valve requires selecting a grinding wheel with a suitable arc diameter working surface, fixing the ball with a clamp, and driving the clamp to rotate with a motor, so that the ball rotates at high speed within the working surface of the grinding wheel, thereby achieving grinding of the ball;

[0004] However, the working surface of the grinding wheel will wear down during the grinding process, and it will not be able to keep in constant contact with the surface of the ball, thus failing to guarantee the grinding effect. Furthermore, the contact between the working surface of the grinding wheel and the surface of the ball is rigid. If the force is not properly controlled when controlling the contact between the grinding wheel and the ball, it can easily lead to damage to the grinding wheel or the ball. Summary of the Invention

[0005] The purpose of this invention is to provide a grinding structure and ball valve production equipment to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A polishing structure, the polishing structure comprising:

[0008] A grinding base is provided with a fixture and a grinding module on its surface. A mounting base is provided on one side of the grinding module. A guide rod and a connecting shaft are provided inside the mounting base. A limit ring is provided at the end of the guide rod, and a limit plate is provided at the end of the connecting shaft.

[0009] Telescopic base, the telescopic base is inserted into the interior of the mounting base. The inner wall of the telescopic base is provided with a guide ring and a partition plate. The surface of the guide ring is provided with guide holes and sliding holes. The end of the telescopic base is provided with a retaining ring and a first bracket. The first bracket is provided with a rotating shaft inside.

[0010] A grinding disc is provided at the end of the telescopic base. A second bracket is provided on the surface of the grinding disc, and a rotating hole is provided on the surface of the second bracket.

[0011] Preferably, the fixture holds a ball valve ball inside, the fixture is fixedly mounted on the surface of the grinding base, and a motor is provided on one side of the fixture. The output shaft of the motor is connected to the ejector pin holding the ball valve ball, and the ball valve ball can be rotated by the motor.

[0012] Preferably, a connecting shaft is fixedly connected to the side of the mounting base near the grinding module. The connecting shaft is connected to the output shaft of the grinding module. The grinding module drives the mounting base to rotate through the connecting shaft. The grinding module is fixedly installed on the surface of the grinding base. The length of the output shaft of the grinding module is adjustable.

[0013] Preferably, the guide rod has a spiral cylindrical structure and is fixedly connected to the inner wall of the mounting base. Multiple sets of guide rods are provided, and multiple sets of guide rods are connected to the same set of limiting rings. The limiting rings are located at the end of the guide rods away from the grinding module. The connecting shaft is located between the multiple sets of guide rods and is fixedly connected to the inner wall of the mounting base. The limiting plate is fixedly connected to the end of the connecting shaft away from the grinding module, and the limiting plate is located on the side of the limiting ring away from the guide rod.

[0014] Preferably, the telescopic base has a cylindrical structure, and the telescopic base is slidably disposed on the side wall of the mounting base. The inner wall of the end of the telescopic base away from the mounting base has a slope. The guide ring is fixedly connected to the inner wall of the end of the telescopic base near the mounting base. The guide hole penetrates through both sides of the guide ring. Multiple sets of guide holes are provided. The guide holes have a spiral circular hole structure, and the spiral direction of the guide hole is consistent with the spiral direction of the guide rod. The inner wall of the guide hole is slidably disposed on the guide rod. The guide ring is slidably sleeved on the surface of the guide rod through the guide hole.

[0015] Preferably, the sliding hole penetrates the middle of the guide ring, and the guide ring is slidably sleeved on the surface of the connecting shaft through the sliding hole. A top holding spring is sleeved on the surface of the connecting shaft. The top holding spring is disposed between the limiting plate and the guide ring. One end of the top holding spring is fixedly connected to the limiting plate. A washer is disposed between the top holding spring and the guide ring. The other end of the top holding spring is fixedly connected to the washer.

[0016] Preferably, the pad ring has multiple sets of spherical grooves on the side near the guide ring, and rotating beads are rotatably arranged inside the spherical grooves. The rotating beads are rolled with the surface of the guide ring. The isolation plate is arranged on the side of the limiting plate away from the connecting shaft, and the isolation plate is fixedly connected to the inner wall of the telescopic base.

[0017] Preferably, the retaining ring and the telescopic base are an integral structure, the first bracket is set inside the retaining ring, the first bracket is fixedly connected to the telescopic base, and multiple sets of the first bracket are provided. Each set of the first bracket consists of two sets of side plates, and the two ends of the rotating shaft are fixedly connected to the two sets of side plates respectively.

[0018] Preferably, the grinding disc is provided in multiple sets. The side of the grinding disc away from the telescopic base is the working surface. The second bracket is fixedly connected to the side of the grinding disc near the telescopic base. The rotating hole passes through both sides of the second bracket. The second bracket is rotatably sleeved on the surface of the rotating shaft through the rotating hole. A torsion spring is sleeved on the surface of the rotating shaft. One end of the torsion spring is fixedly connected to the rotating shaft, and the other end of the torsion spring is fixedly connected to the inner wall of the rotating hole. The surface of the end of the grinding disc is initially in contact with the end of the retaining ring.

[0019] A ball valve manufacturing equipment includes the aforementioned grinding structure.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] This invention proposes a grinding structure that uses a fixture to hold the ball of a ball valve and a motor to drive the ball valve to rotate at high speed, activating the grinding module and causing the grinding discs to come into contact with the surface of the ball valve. The motor drives the ball valve to rotate, while the telescopic base drives multiple sets of grinding discs to rotate, thus achieving grinding of the surface of the ball valve. Because the grinding discs are elastically set by torsion springs, and the telescopic base extends and retracts due to inertia, the problem of wear on the working surface of the grinding wheel during the grinding process, which prevents it from staying in contact with the surface of the ball and thus cannot guarantee the grinding effect, is solved. At the same time, it avoids damage to the grinding wheel or the ball due to improper control of the force.

[0022] By adjusting the length of the output shaft of the grinding module, the angle and force of the grinding disc against the ball valve body can be adjusted, thus enabling the grinding of more ball valve bodies of various models. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention;

[0024] Figure 2 This is a schematic cross-sectional view of the present invention;

[0025] Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A in the middle;

[0026] Figure 4 This is a schematic diagram of the retaining ring structure of the present invention;

[0027] Figure 5 This is a schematic cross-sectional view of the mounting base of the present invention;

[0028] Figure 6 This is a schematic cross-sectional view of the telescopic base structure of the present invention;

[0029] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point B;

[0030] Figure 8 This is a schematic diagram of the grinding disc structure of the present invention.

[0031] In the diagram: Grinding base 1, fixture tooling 11, motor 12, grinding module 2, mounting base 3, connecting shaft 31, guide rod 32, limit ring 33, connecting shaft 34, limit plate 35, telescopic base 4, guide ring 41, guide hole 42, sliding hole 43, isolation plate 44, slope 45, retaining ring 46, bracket 1 47, rotating shaft 48, torsion spring 49, grinding disc 5, bracket 2 51, rotating hole 52, washer 6, spherical groove 61, rotating ball 62, top holding spring 7, ball valve ball 8. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Example 1

[0034] Please see Figures 1-8 The present invention provides a technical solution:

[0035] A grinding structure includes: a grinding base 1 with a fixture 11 and a grinding module 2 on its surface; a mounting base 3 on one side of the grinding module 2; a guide rod 32 and a connecting shaft 34 inside the mounting base 3; a limit ring 33 at the end of the guide rod 32; and a limit plate 35 at the end of the connecting shaft 34; a telescopic base 4 inserted into the mounting base 3; a guide ring 41 and a partition plate 44 on the inner wall of the telescopic base 4; a guide hole 42 and a sliding hole 43 on the surface of the guide ring 41; a retaining ring 46 and a first bracket 47 at the end of the telescopic base 4; and a rotating shaft 48 inside the first bracket 47; and a grinding disc 5 disposed at the end of the telescopic base 4. The surface of the grinding disc 5 is provided with a second bracket 51, and the surface of the second bracket 51 is provided with a rotating hole 52; the fixture 11 holds the ball valve ball 8 inside, the fixture 11 is fixedly set on the surface of the grinding base 1, a motor 12 is set on one side of the fixture 11, the output shaft of the motor 12 is connected to the ejector pin holding the ball valve ball 8, and the ball valve ball 8 can be rotated by the motor 12; a connecting shaft 31 is fixedly connected to the side of the mounting base 3 near the grinding module 2, the connecting shaft 31 is connected to the output shaft of the grinding module 2, the grinding module 2 drives the mounting base 3 to rotate through the connecting shaft 31, the grinding module 2 is fixedly installed on the surface of the grinding base 1, and the length of the output shaft of the grinding module 2 is adjustable;

[0036] When grinding the ball valve ball 8, the ball valve ball 8 is clamped by the fixture 11, the ball valve ball 8 is rotated by the motor 12, and the mounting base 3 is rotated by the grinding module 2. When the mounting base 3 rotates, the telescopic base 4 moves along the direction of the guide rod 32 through the guide hole 42, so that the grinding disc 5 is in contact with the surface of the ball valve ball 8, and the surface of the ball valve ball 8 is ground.

[0037] Example 2

[0038] Based on Embodiment 1, to enable the movement of the telescopic base 4, the guide rod 32 has a spiral cylindrical structure. The guide rod 32 is fixedly connected to the inner wall of the mounting base 3. Multiple sets of guide rods 32 are provided, and multiple sets of guide rods 32 are connected to the same set of limiting rings 33. The limiting rings 33 are located at the end of the guide rod 32 away from the grinding module 2. The connecting shaft 34 is located between the multiple sets of guide rods 32 and is fixedly connected to the inner wall of the mounting base 3. The limiting plate 35 is connected to the connecting shaft 34. The end away from the grinding module 2 is fixedly connected, and the limiting plate 35 is located on the side of the limiting ring 33 away from the guide rod 32; the telescopic base 4 has a cylindrical structure, and the telescopic base 4 is slidably disposed with the side wall of the mounting base 3. The inner wall of the end of the telescopic base 4 away from the mounting base 3 is provided with a slope 45. The guide ring 41 is fixedly connected to the inner wall of the end of the telescopic base 4 near the mounting base 3. The guide hole 42 penetrates both sides of the guide ring 41, and multiple sets of guide holes 42 are provided. The guide ring 41 has a spiral circular hole structure, and the spiral direction of the guide hole 42 is consistent with the spiral direction of the guide rod 32. The inner wall of the guide hole 42 is slidably disposed with respect to the guide rod 32. The guide ring 41 is slidably sleeved on the surface of the guide rod 32 through the guide hole 42. The sliding hole 43 penetrates the middle of the guide ring 41, and the guide ring 41 is slidably sleeved on the surface of the connecting shaft 34 through the sliding hole 43. A top-holding spring 7 is sleeved on the surface of the connecting shaft 34. The top-holding spring 7 is disposed between the limiting plate 35 and the guide ring 41. One end of the holding spring 7 is fixedly connected to the limiting plate 35. A washer 6 is provided between the holding spring 7 and the guide ring 41. The other end of the holding spring 7 is fixedly connected to the washer 6. Multiple sets of spherical grooves 61 are opened on the side of the washer 6 near the guide ring 41. A rotating ball 62 is rotatably arranged inside the spherical groove 61. The rotating ball 62 rolls with the surface of the guide ring 41. The isolation plate 44 is arranged on the side of the limiting plate 35 away from the connecting shaft 34. The isolation plate 44 is fixedly connected to the inner wall of the telescopic base 4.

[0039] When the mounting base 3 rotates, the telescopic base 4 moves along the direction of the guide rod 32 through the guide hole 42 due to inertia. The guide ring 41 compresses the top holding spring 7 through the washer ring 6, causing the telescopic base 4 to move outward from the mounting base 3.

[0040] Example 3

[0041] Based on Embodiment 2, in order to achieve the angle change of the grinding disc 5, the retaining ring 46 and the telescopic base 4 are integral structures. The first bracket 47 is set inside the retaining ring 46 and is fixedly connected to the telescopic base 4. Multiple sets of the first bracket 47 are provided, and each set of the first bracket 47 consists of two sets of side plates. The two ends of the rotating shaft 48 are fixedly connected to the two sets of side plates respectively. Multiple sets of grinding discs 5 are provided. The side of the grinding disc 5 away from the telescopic base 4 is the working surface. The second bracket 51 is fixedly connected to the side of the grinding disc 5 close to the telescopic base 4. The rotating hole 52 passes through both sides of the second bracket 51. The second bracket 51 is rotatably sleeved on the surface of the rotating shaft 48 through the rotating hole 52. A torsion spring 49 is sleeved on the surface of the rotating shaft 48. One end of the torsion spring 49 is fixedly connected to the rotating shaft 48, and the other end of the torsion spring 49 is fixedly connected to the inner wall of the rotating hole 52. The surface of the end of the grinding disc 5 is initially in contact with the end of the retaining ring 46.

[0042] During the movement of the telescopic base 4, the grinding disc 5 is in contact with the surface of the ball valve ball 8 and is squeezed by the ball valve ball 8. The end of the grinding disc 5 away from the retaining ring 46 folds inward into the telescopic base 4, changing the angle of the grinding disc 5 to adapt to different positions on the surface of the ball valve ball 8. By adjusting the length of the output shaft of the grinding module 2, the position of contact between the grinding disc 5 and the surface of the ball valve ball 8 can be changed.

[0043] A ball valve manufacturing equipment includes the aforementioned grinding structure.

[0044] In use, the ball valve ball 8 is clamped by the fixture 11, and the ball valve ball 8 is driven to rotate at high speed by the motor 12. The grinding module 2 is started to drive the mounting base 3 to rotate. During the rotation of the mounting base 3, the telescopic base 4 extends outward of the mounting base 3 through the guide hole 42 along the guide rod 32 due to inertia, so that the grinding disc 5 is in contact with the surface of the ball valve ball 8. The ball valve ball 8 is driven to rotate by the motor 12, and at the same time, the telescopic base 4 drives multiple sets of grinding discs 5 to rotate, so as to grind the surface of the ball valve ball 8. Furthermore, by adjusting the length of the output shaft of the grinding module 2, the angle and force of the contact between the grinding disc 5 and the ball valve ball 8 can be adjusted, so that more models of ball valve balls 8 can be ground.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A grinding structure, characterized in that: The polishing structure includes: Grinding base (1), the surface of grinding base (1) is provided with a fixture (11) and a grinding module (2), a mounting base (3) is provided on one side of grinding module (2), a guide rod (32) and a connecting shaft (34) are provided inside the mounting base (3), a limit ring (33) is provided at the end of the guide rod (32), and a limit plate (35) is provided at the end of the connecting shaft (34). Telescopic base (4) is inserted into the interior of mounting base (3). The inner wall of telescopic base (4) is provided with guide ring (41) and isolation plate (44). The surface of guide ring (41) is provided with guide hole (42) and sliding hole (43). The end of telescopic base (4) is provided with retaining ring (46) and first bracket (47). The inside of first bracket (47) is provided with rotating shaft (48). A grinding disc (5) is provided at the end of the telescopic base (4). A second bracket (51) is provided on the surface of the grinding disc (5). A rotating hole (52) is provided on the surface of the second bracket (51). The fixture (11) holds a ball valve ball (8) inside. The fixture (11) is fixedly mounted on the surface of the grinding base (1). A motor (12) is provided on one side of the fixture (11). The output shaft of the motor (12) is connected to the ejector pin holding the ball valve ball (8). The ball valve ball (8) can be rotated by the motor (12). A connecting shaft (31) is fixedly connected to the side of the mounting base (3) near the grinding module (2). The connecting shaft (31) is connected to the output shaft of the grinding module (2). The grinding module (2) drives the mounting base (3) to rotate through the connecting shaft (31). The grinding module (2) is fixedly mounted on the grinding base. (1) The length of the output shaft of the grinding module (2) is adjustable; the guide rod (32) has a spiral cylindrical structure, the guide rod (32) is fixedly connected to the inner wall of the mounting base (3), the guide rod (32) is provided in multiple sets, and multiple sets of guide rods (32) are connected to the same set of limiting rings (33), the limiting rings (33) are provided at the end of the guide rod (32) away from the grinding module (2), the connecting shaft two (34) is provided between multiple sets of guide rods (32), the connecting shaft two (34) is fixedly connected to the inner wall of the mounting base (3), the limiting plate (35) is fixedly connected to the end of the connecting shaft two (34) away from the grinding module (2), and the limiting plate (35) is fixedly connected to the end of the connecting shaft two (34) away from the grinding module (2), and the limiting plate (35) is fixedly connected to the end of the connecting shaft two (34) away from the grinding module (2), and the limiting plate (35) is fixedly connected to the end of the connecting shaft two (34) away from the grinding module (2), and the limiting plate (35) is fixedly connected to the end of the connecting shaft two (34) away from the grinding module (2), and the limiting plate (35) is fixedly connected to the end of the connecting shaft two (34) away from the grinding module (2). 5) Located on the side of the limiting ring (33) away from the guide rod (32); the telescopic base (4) has a cylindrical structure, the telescopic base (4) is slidably disposed with the side wall of the mounting base (3), the inner wall of the end of the telescopic base (4) away from the mounting base (3) is provided with a slope (45), the guide ring (41) is fixedly connected to the inner wall of the end of the telescopic base (4) close to the mounting base (3), the guide hole (42) penetrates both sides of the guide ring (41), multiple sets of guide holes (42) are provided, the guide hole (42) has a spiral circular hole structure, and the spiral direction of the guide hole (42) is consistent with the spiral direction of the guide rod (32), the inner of the guide hole (42) The wall and guide rod (32) are slidably arranged, and the guide ring (41) is slidably sleeved on the surface of the guide rod (32) through the guide hole (42); the sliding hole (43) passes through the middle of the guide ring (41), and the guide ring (41) is slidably sleeved on the surface of the connecting shaft two (34) through the sliding hole (43). The surface of the connecting shaft two (34) is sleeved with a top holding spring (7), the top holding spring (7) is arranged between the limiting plate (35) and the guide ring (41), one end of the top holding spring (7) is fixedly connected to the limiting plate (35), a washer (6) is arranged between the top holding spring (7) and the guide ring (41), and the other end of the top holding spring (7) is fixedly connected to the washer (6);The washer (6) has multiple sets of spherical grooves (61) on the side near the guide ring (41). A rotating ball (62) is rotatably disposed inside the spherical groove (61), and the ball (62) rolls against the surface of the guide ring (41). An isolation plate (44) is disposed on the side of the limiting plate (35) away from the connecting shaft (34), and the isolation plate (44) is fixedly connected to the inner wall of the telescopic base (4). The retaining ring (46) and the telescopic base (4) are an integral structure. A first bracket (47) is disposed inside the retaining ring (46), and is fixedly connected to the telescopic base (4). Multiple sets of first brackets (47) are provided, each set consisting of two sets of side plates. The two ends of the rotating shaft (48) are fixedly connected to the two sets of side plates respectively.

2. The grinding structure according to claim 1, characterized in that: The grinding disc (5) is provided in multiple sets. The side of the grinding disc (5) away from the telescopic base (4) is the working surface. The second bracket (51) is fixedly connected to the side of the grinding disc (5) close to the telescopic base (4). The rotating hole (52) passes through both sides of the second bracket (51). The second bracket (51) is rotated and sleeved on the surface of the rotating shaft (48) through the rotating hole (52). The surface of the rotating shaft (48) is sleeved with a torsion spring (49). One end of the torsion spring (49) is fixedly connected to the rotating shaft (48), and the other end of the torsion spring (49) is fixedly connected to the inner wall of the rotating hole (52). The surface of the end of the grinding disc (5) is initially in contact with the end of the retaining ring (46).

3. A ball valve manufacturing equipment, characterized in that: The grinding structure includes any one of claims 1-2 above.

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