Clamp for coating conical surface of valve seat

Abstract

The utility model relates to the field of clamps, in particular to a clamp for coating a conical surface of a valve seat. Comprising a bottom plate and a plurality of valve seat bodies, the upper surface of the bottom plate is provided with a fixing structure, the fixing structure comprises three fixing columns and an air cylinder, the three fixing columns are fixedly connected with the bottom plate, the air cylinder is fixedly connected with the bottom plate, and the upper surfaces of the three fixing columns are fixedly connected with a fixing disc; a plurality of positioning columns are fixedly connected to the inner wall of the fixing disc, and the output end of the air cylinder body is fixedly connected with a connecting disc. According to the clamp for coating the conical surface of the valve seat, the problems that when a person fixes a valve seat body, the person needs to manually rotate a rotating rod to enable the clamp to clamp and fix the valve seat body, and only one valve seat body can be coated every time after fixation is completed are solved; and as the operation mode is very cumbersome, the working efficiency of personnel is low.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of fixture, especially a kind of fixture for valve seat conical surface coating. BACKGROUND

[0002] Fixture is by positioning element, clamping device, connecting element etc., it is mainly used to fix valve seat a kind of fixture for valve seat conical surface coating, it is more common in prior art.

[0003] Prior art such as the utility model with publication number CN219945071U, this patent discloses a valve seat fixture, the patent adopts fixture disc and fixing piece, fixture disc center is provided with along vertical arrangement's through hole, fixture disc is provided with and the concentric arrangement's anti-internal shrinkage ring of through hole, and anti-internal shrinkage ring is located the outer periphery of through hole, fixing piece is detachably arranged in fixture disc, the fixing piece includes power component and moving rod, fixture disc is provided with cooperation ring, and cooperation ring and anti-internal shrinkage ring form anti-internal shrinkage recess, fixture disc is provided with along vertical arrangement's vertical hole, power component drives moving rod to move along vertical hole, and moving rod top has press part and press part part is located anti-internal shrinkage recess above solves the current, adopts the valve seat of stainless steel material in surfacing process, due to the thermal expansion coefficient of stainless steel material is relatively large, after being heated, valve seat internal diameter shrinkage degree is high, and there is great difference with the size required, cannot satisfy the problem of use demand.

[0004] The inventor found in the process of clamping and fixing the conical surface of the valve seat body during daily work that personnel need to manually rotate the rotating rod to make the fixture clamp and fix the valve seat body when personnel fix the valve seat body, and only one valve seat body can be coated each time after fixing is completed, since this operation mode is very tedious, the work efficiency of personnel will be low.

[0005] Therefore, it is necessary to provide a new kind of fixture for valve seat conical surface coating to solve the above technical problems. UTILITY MODEL CONTENTS

[0006] The utility model aims at solving the shortcomings in prior art that personnel need to manually rotate the rotating rod to make the fixture clamp and fix the valve seat body when personnel fix the valve seat body, and only one valve seat body can be coated each time after fixing is completed, since this operation mode is very tedious, the work efficiency of personnel will be low, and a kind of fixture for valve seat conical surface coating is provided.

[0007] The utility model provides a kind of clamp for valve seat conic surface coating, it include: bottom plate and several valve seat bodies, the upper surface of the bottom plate is equipped with fixed structure, the fixed structure includes three fixed columns and pneumatic cylinder, three the fixed column is fixedly connected with bottom plate, the pneumatic cylinder is fixedly connected with bottom plate, the upper surface of three the fixed column is fixedly connected with fixed disc, the inner wall of the fixed disc is fixedly connected with several positioning columns, the output of the pneumatic cylinder body is fixedly connected with connecting disc, the upper surface of the connecting disc is fixedly connected with several extrusion columns, the extrusion column is slidably connected with positioning column, the inner wall of the positioning column is equipped with four auxiliary grooves, the inner wall of the auxiliary groove is slidably connected with moving column, the moving column is trapezoidal, the side of four the moving column away from each other is fixedly connected with extrusion block, the surface of the moving column is equipped with spring, the both ends of the spring are fixedly connected with auxiliary groove and extrusion block, the inclined plane of the extrusion column and moving column is abutted.

[0008] The above components achieve the following effects: When personnel need to coat the conic surface of the valve seat body, personnel need to manually rotate the rotating rod to clamp and fix the valve seat body with the clamp, and only one valve seat body can be coated at a time, which can lead to low work efficiency of personnel. At this time, the fixed structure can solve this problem. Personnel can first fit multiple valve seat bodies on the arc surface of the positioning column, and then start the pneumatic cylinder. The four extrusion blocks will move towards the valve seat body until the valve seat body is fixed. This can facilitate personnel to quickly fix the valve seat body and coat multiple valve seat bodies at the same time, thereby improving the work efficiency of personnel.

[0009] Preferably, the extrusion block is fixedly connected with an extrusion pad on the side away from the moving column, and the extrusion pad is in abutment with the valve seat body.

[0010] The above components achieve the following effects: The extrusion pad can protect the valve seat body and prevent the extrusion block from directly contacting the valve seat body during movement towards the valve seat body.

[0011] Preferably, the extrusion block is in the shape of an arc.

[0012] The above components achieve the following effects: The arc-shaped extrusion block helps to fit the inner wall of the valve seat body, which can increase the stability of the valve seat body.

[0013] Preferably, the moving column is a stainless steel column.

[0014] The above components achieve the following effects: The stainless steel column has high strength and good wear resistance, which can prevent serious wear on the surface of the moving column during short-term use.

[0015] Preferably, the upper surface of the fixing disc is provided with an auxiliary structure, the auxiliary structure comprises a plurality of fixing plates, the plurality of fixing plates are fixedly connected with the fixing disc, three of the fixing plates are a group, and the fixing plates in the group are uniformly distributed around the valve seat body.

[0016] The above-mentioned components achieve the effect that when personnel need to put the valve seat body on the circular surface of the positioning column, the personnel can first move the insertion rod so that the insertion rod slides out of the inner wall of the limiting hole, and then the personnel can move the limiting blocks so that the three limiting blocks are moved to appropriate positions, at which the three limiting blocks can limit the valve seat body, thereby facilitating the personnel to put the valve seat body on the circular surface of the positioning column, and thereby increasing the operation convenience of the personnel and improving the work efficiency of the personnel.

[0017] Preferably, the circular surface of the insertion rod is sleeved with a compression spring, and the two ends of the compression spring are fixedly connected with the fixing plate and the insertion rod respectively.

[0018] The above-mentioned components achieve the effect that the compression spring can limit the insertion rod, and can prevent the insertion rod from sliding out of the inner wall of the limiting hole during the processing of the valve seat body.

[0019] Preferably, the upper end of the insertion rod is fixedly connected with a pull ring, and the cross section of the pull ring is circular.

[0020] The above-mentioned components achieve the effect that the pull ring can facilitate the personnel to move the insertion rod, and can improve the operation convenience of the personnel.

[0021] Compared with the related art, the clamp for valve seat cone coating provided by the utility model has the following beneficial effects:

[0022] The clamp for valve seat cone coating provided by the utility model can quickly and simultaneously fix and limit a plurality of valve seat bodies through the fixing structure when the personnel need to coat the valve seat bodies, thereby improving the work efficiency of the personnel.

[0023] When the personnel need to put the valve seat body on the positioning column and then fix the valve seat body through the fixing structure, the auxiliary structure can be used to limit the valve seat body, which can facilitate the personnel to put the valve seat body on the circular surface of the positioning column, thereby increasing the operation convenience of the personnel and improving the work efficiency of the personnel. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 A structure diagram of the clamp for valve seat conical surface coating is provided in the utility model.

[0025] Figure 2 A structure diagram of the clamp for valve seat conical surface coating is provided in the utility model. Figure 1 A structure diagram of the clamp for valve seat conical surface coating is provided in the utility model.

[0026] Figure 3 A structure diagram of the clamp for valve seat conical surface coating is provided in the utility model. Figure 2 A structure diagram of the clamp for valve seat conical surface coating is provided in the utility model.

[0027] Figure 4 A structure diagram of the clamp for valve seat conical surface coating is provided in the utility model. Figure 3 A structure diagram of the clamp for valve seat conical surface coating is provided in the utility model.

[0028] Figure 5 A structure diagram of the clamp for valve seat conical surface coating is provided in the utility model. Figure 1 A structure diagram of the clamp for valve seat conical surface coating is provided in the utility model.

[0029] In the figure, 1 is a bottom plate, 2 is a valve seat body, 3 is a fixing structure, 301 is a fixing column, 302 is a fixing disc, 303 is a positioning column, 304 is an auxiliary groove, 305 is a moving column, 306 is an extrusion block, 307 is an extrusion pad, 308 is an extrusion column, 309 is a pneumatic cylinder, 310 is a connecting disc, 311 is a spring, 4 is an auxiliary structure, 41 is a fixing plate, 42 is a connecting plate, 43 is a limiting hole, 44 is a limiting block, 45 is an inserting rod, 46 is a pull ring, and 47 is a compression spring. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the utility model more clearly understood, the utility model is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and do not limit the utility model.

[0031] The specific implementation of the utility model is described in detail below in combination with specific embodiments.

[0032] Please refer to Figure 1 The utility model embodiment provides a clamp for valve seat conical surface coating, which comprises a bottom plate 1 and a plurality of valve seat bodies 2, the upper surface of the bottom plate 1 is provided with a fixing structure 3, and the upper surface of the fixing disc 302 is provided with an auxiliary structure 4.

[0033] In the embodiment of the utility model, please refer to Figures 2 to 4The fixing structure 3 comprises three fixing columns 301 and a cylinder 309, the three fixing columns 301 are fixedly connected with the bottom plate 1, the cylinder 309 is fixedly connected with the bottom plate 1, the upper surface of the three fixing columns 301 is fixedly connected with a fixing disc 302, the inner wall of the fixing disc 302 is fixedly connected with a plurality of positioning columns 303, the output end of the cylinder 309 body is fixedly connected with a connecting disc 310, the upper surface of the connecting disc 310 is fixedly connected with a plurality of extrusion columns 308, the extrusion columns 308 are slidably connected with the positioning columns 303, the inner wall of the positioning column 303 is provided with four auxiliary grooves 304, the auxiliary grooves 304 are slidably connected with moving columns 305, the moving columns 305 are trapezoidal, the side, away from each other, of the four moving columns 305 is fixedly connected with extrusion blocks 306, the surface of the moving column 305 is sleeved with springs 311, the two ends of the spring 311 are fixedly connected with the auxiliary groove 304 and the extrusion block 306 respectively, and the inclined surfaces of the extrusion column 308 and the moving column 305 abut each other. When personnel need to coat the conical surface of the valve seat body 2, the personnel need to manually rotate the rotating rod to make the clamp clamp and fix the valve seat body 2, and only one valve seat body 2 can be coated at a time, so that the working efficiency of the personnel is low, at this time, the fixing structure 3 can solve this problem, through the fixing structure 3, the personnel can first sleeve a plurality of valve seat bodies 2 on the arc surface of the positioning column 303, then the personnel start the cylinder 309, and the four extrusion blocks 306 move towards the valve seat body 2 until the valve seat body 2 is fixed, so that the personnel can quickly fix the valve seat body 2, and the personnel can coat a plurality of valve seat bodies 2 at the same time, thereby improving the working efficiency of the personnel, the side, away from the moving column 305, of the extrusion block 306 is fixedly connected with an extrusion pad 307, and the extrusion pad 307 abuts against the valve seat body 2. The extrusion pad 307 can protect the valve seat body 2, and can prevent the extrusion block 306 from directly contacting the valve seat body 2 during movement towards the valve seat body 2, and the extrusion block 306 is arc-shaped. The arc-shaped extrusion block 306 is helpful to fit the inner wall of the valve seat body 2, and can increase the stability of the valve seat body 2, and the moving column 305 is a stainless steel column. The stainless steel column has high strength and good wear resistance, and can prevent the surface of the moving column 305 from being seriously worn during short-term use;

[0034] In the embodiment of the utility model, please refer to Figure 5The auxiliary structure 4 comprises a plurality of fixed plates 41, the plurality of fixed plates 41 are fixedly connected with the fixed disc 302, the plurality of fixed plates 41 are three by three as a group, the group of fixed plates 41 are evenly distributed around the valve seat body 2, the inner wall of the fixed plate 41 is slidably connected with a connecting plate 42, the side close to the valve seat body 2 of the connecting plate 42 is fixedly connected with a limiting block 44, the inner wall of the fixed plate 41 is slidably connected with a plug rod 45, a plurality of limiting holes 43 are formed in the inner wall of the connecting plate 42, the limiting holes 43 are slidably connected with the plug rod 45. When the personnel need to put the valve seat body 2 on the arc surface of the positioning column 303, the personnel can first move the plug rod 45 through the auxiliary structure 4, so that the plug rod 45 slides out of the inner wall of the limiting hole 43, then the personnel moves the limiting block 44, so that the three limiting blocks 44 move to the appropriate position, at this time, the three limiting blocks 44 can limit the valve seat body 2, so that the personnel can conveniently put the valve seat body 2 on the arc surface of the positioning column 303, thereby increasing the operation convenience of the personnel and improving the work efficiency of the personnel. The arc surface of the plug rod 45 is sleeved with a compression spring 47, the two ends of the compression spring 47 are fixedly connected with the fixed plate 41 and the plug rod 45 respectively. The compression spring 47 can limit the plug rod 45, so that the plug rod 45 cannot slide out of the inner wall of the limiting hole 43 during the processing of the valve seat body 2 by the personnel, the upper end of the plug rod 45 is fixedly connected with a pull ring 46, and the cross section of the pull ring 46 is circular. The pull ring 46 can facilitate the personnel to move the plug rod 45, so that the operation convenience of the personnel is improved;

[0035] The working principle of the clamp for valve seat conical surface coating is as follows: when personnel need to coat a plurality of valve seat bodies 2, the personnel can first fit the plurality of valve seat bodies 2 on the arc surface of the positioning column 303 respectively, so that the four extrusion pads 307 are located in the interiors of the valve seat bodies 2, then the personnel start the air cylinder 309, the output end of the air cylinder 309 drives the connecting disc 310 to move upwards, the connecting disc 310 drives the plurality of extrusion columns 308 to move upwards, the extrusion columns 308 slide in the interiors of the positioning columns 303, and the extrusion columns 308 slide in the interiors of the positioning columns 303 and abut against the inclined surfaces of the four moving columns 305 in the process, wherein the moving column 305 is a stainless steel column, the stainless steel column has high strength and good wear resistance, can prevent the surface of the moving column 305 from being seriously abraded in the process of short-term use, then drives the four moving columns 305 to move away from the extrusion columns 308, the moving column 305 drives the extrusion block 306 to move away from the extrusion column 308, wherein the extrusion block 306 is arc-shaped, the arc-shaped extrusion block 306 is helpful to be attached to the inner walls of the valve seat bodies 2 and can increase the stability of the valve seat bodies 2, then the extrusion block 306 drives the spring 311 to stretch, the extrusion block 306 also drives the extrusion pad 307 to move away from the extrusion column 308, until the extrusion pad 307 abuts against the inner walls of the valve seat bodies 2, wherein the extrusion pad 307 can protect the valve seat bodies 2 and can prevent the extrusion block 306 from directly contacting the valve seat bodies 2 in the process of moving towards the valve seat bodies 2.

[0036] In addition, when the personnel need to fix the valve seat body 2 through the fixing structure 3, the personnel can first move the insertion rod 45 away from the limiting hole 43 by means of the pull ring 46, wherein the pull ring 46 can facilitate the personnel to move the insertion rod 45 and can improve the operation convenience of the personnel, then the insertion rod 45 drives the compression spring 47 to stretch, until the insertion rod 45 slides out of the inner wall of the limiting hole 43, wherein the compression spring 47 can limit the insertion rod 45 and can prevent the insertion rod 45 from sliding out of the inner wall of the limiting hole 43 in the process of machining the valve seat body 2, then the personnel move the connecting plate 42, the connecting plate 42 drives the connecting block to move, and then the personnel adjust the distance between the three limiting blocks 44 and the limiting columns according to the size of the valve seat body 2.

[0037] The circuit and the control involved in the utility model are prior art, and too much description is not made herein.

[0038] The above merely illustrates the embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which are made according to the content of the present application specification and drawings, are also included in the patent protection scope of the present application.

Claims

1. A fixture for valve seat cone coating, characterized by, The utility model relates to a valve seat body (2) and bottom plate (1) are provided with fixed structure (3) and auxiliary structure (4), the fixed structure (3) includes three fixed column (301) and cylinder (309), three fixed column (301) are connected with bottom plate (1) fixedly, cylinder (309) is connected with bottom plate (1) fixedly, the upper surface of three fixed column (301) is fixedly connected with fixed disc (302), the inner wall of fixed disc (302) is fixedly connected with a plurality of positioning column (303), the output of cylinder (309) body is fixedly connected with connecting disc (310), the upper surface of connecting disc (310) is fixedly connected with a plurality of extrusion column (308), extrusion column (308) is connected with positioning column (303) slidingly, the inner wall of positioning column (303) is provided with four auxiliary grooves (304), the inner wall of auxiliary groove (304) is connected with moving column (305) slidingly, moving column (305) is trapezoidal, four moving column (305) are fixedly connected with extrusion block (306) on the side away from each other, the surface of moving column (305) is provided with spring (311), and both ends of spring (311) are fixedly connected with auxiliary groove (304) and extrusion block (306) respectively, and the inclined surface of extrusion column (308) and moving column (305) abuts. The side away from moving column (305) of extrusion block (306) is fixedly connected with extrusion pad (307), and extrusion pad (307) abuts with valve seat body (2).

2. A fixture for valve seat cone coating according to claim 1, wherein Extrusion block (306) is arc-shaped.

3. A fixture for valve seat cone coating according to claim 1, wherein Moving column (305) is a stainless steel column.

4. A fixture for valve seat cone coating according to claim 1, wherein The upper surface of fixed disc (302) is provided with auxiliary structure (4), the auxiliary structure (4) includes a plurality of fixed plates (41), a plurality of fixed plates (41) are fixedly connected with fixed disc (302), a plurality of fixed plates (41) are every three as a group, a group of fixed plates (41) are evenly distributed around valve seat body (2), the inner wall of fixed plate (41) is connected with link plate (42) slidingly, the side close to valve seat body (2) of link plate (42) is fixedly connected with limiting block (44), the inner wall of fixed plate (41) is connected with plug rod (45) slidingly, a plurality of limiting holes (43) are formed in the inner wall of link plate (42), and limiting hole (43) is connected with plug rod (45) slidingly.

5. A fixture for valve seat cone coating according to claim 1, wherein The arc surface of plug rod (45) is provided with compression spring (47), and both ends of compression spring (47) are fixedly connected with fixed plate (41) and plug rod (45) respectively.

6. A fixture for valve seat cone coating according to claim 5, wherein The upper end of plug rod (45) is fixedly connected with pull ring (46), and the section of pull ring (46) is circular.

7. A fixture for valve seat cone coating according to claim 5, wherein ​

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