A valve body automatic superfinishing mechanism

Abstract

The present invention discloses an automatic super-finishing mechanism for a valve body, and relates to the field of stop valve equipment. In view of the problems of low automation, improper operation or mistakes that may cause damage to the inner surface, and low work efficiency in existing super-finishing equipment, the following scheme is proposed, which includes a base, a mounting plate, and a guide column, characterized in that the guide column passes through the mounting plate, the mounting plate and the guide column are slidably matched, a cylinder is fixedly installed on the side of the mounting plate away from the base, the piston end of the cylinder moves through the mounting plate and abuts against the base, a fixed structure is fixedly installed on the side wall of the cylinder, the fixed structure has a limiting groove, a support seat is fixedly installed on the side of the base close to the mounting plate, the support seat has a support structure, and the support structure can freely pass through the mounting plate. The present invention has a novel structure, low operating difficulty, high stability, realizes automation, and improves processing accuracy.

Description

Technical Field

[0001] The invention relates to the field of automation equipment, and in particular to an automatic super-precision mechanism for a valve body. Background Art

[0002] When the valve body is being processed, there are high requirements for the inner surface roughness corresponding to some holes or cavities. After machining, ultra-finishing treatments such as tumbling are required. When tumbling is performed, ultra-finishing equipment is required.

[0003] The ultra-finishing equipment currently used in the market is drilling machine ultra-finishing, which requires workers to perform the ultra-finishing process manually. Improper operation or mistakes by workers will cause damage to the inner surface, and the work efficiency is not high, and the degree of automation is low. Therefore, in order to solve such problems, we proposed an automatic ultra-finishing mechanism for the valve body. Summary of the invention

[0004] The invention provides an automatic superfinishing mechanism for a valve body, which solves the problems of low automation, damage to the inner surface caused by improper operation or mistakes, and low working efficiency in existing superfinishing equipment.

[0005] In order to achieve the above purpose, the following technical solutions are adopted:

[0006] A valve body automatic ultra-precision mechanism comprises a base, a mounting plate and a guide column, characterized in that the guide column passes through the mounting plate, the mounting plate and the guide column are slidably matched, a cylinder is fixedly mounted on the side of the mounting plate away from the base, the piston end of the cylinder moves through the mounting plate and abuts against the base, a fixing structure is fixedly mounted on the side wall of the cylinder, the fixing structure has a limiting groove, a support seat is fixedly mounted on the side of the base close to the mounting plate, the support seat has a supporting structure, the supporting structure can freely pass through the mounting plate, the supporting structure matches the limiting groove and maintains a distance.

[0007] Preferably, the mounting plate is provided with a shaft sleeve, and the shaft sleeve is provided corresponding to the guide column, the number of the guide columns is at least three, the guide column passes through the shaft sleeve, and the outer wall surface of the guide column and the inner wall surface of the shaft sleeve are slidingly matched.

[0008] Preferably, the fixed structure includes a fixed block and a positioning block, the fixed block includes a side wall portion fixed to the cylinder, and a baffle fixed to the mounting plate, the baffle is provided with a first channel, and the mounting plate is provided with a second channel, the first channel and the second channel correspond to each other, the supporting structure passes through the second channel and the first channel and extends into the fixed structure, and the positioning block in the fixed structure is used for clamping and fixing the valve body.

[0009] Preferably, the positioning block is fixedly connected to a side of the fixing block away from the mounting plate, the limiting groove is located on a side of the positioning block away from the cylinder, a hollow space is formed after the fixing block and the positioning block are fixed, and the supporting structure extends into the hollow space after passing through the second channel and the first channel.

[0010] Preferably, the guide column is connected to a connecting block, which limits the piston of the guide column, and at least one of the guide columns is provided with a connecting block, which is installed with a limiting bolt, and the connecting block is located on the side of the guide column away from the base and the side of the cylinder away from the fixed structure.

[0011] Preferably, the supporting structure includes an elastic element. When the valve body is installed in the fixed structure and the valve body is limited in the limiting groove, the elastic element is in a compressed state, and the elastic deformation force of the elastic element is greater than the force exerted on the valve body by the downward movement of the super-precision tool.

[0012] Preferably, the supporting structure is made of PVC material, cow tendon material or other elastic material.

[0013] The beneficial effects of the present invention are:

[0014] The mounting plate is driven by the cylinder to move up and down relative to the base, and the support seat is fixed to the base. The mounting plate moves so that the processed product placed on the support seat is sent into the limiting part of the fixed structure, which can be automated. The guide column has the functions of pre-positioning and guiding, which can improve the super finishing accuracy.

[0015] In summary, the device has low operating difficulty, high stability, realizes automation and improves processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the side three-dimensional structure of the present invention.

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the back side of the present invention.

[0019] Figure 4 It is a front view of the present invention.

[0020] Figure 5 It is a top view of the present invention.

[0021] Figure 6 It is a side view of the present invention.

[0022] Numbers in the figure: 1, base; 2, guide column; 3, bushing; 4, mounting plate; 5, connecting block; 6, fixing block; 7, positioning block; 8, cylinder; 9, support seat; 10, baffle; 11, valve body. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] Reference Figure 1-Figure 6 , a valve body automatic ultra-finishing mechanism, including a base 1, a mounting plate 4 and a guide column 2, the base 1 is fixedly mounted with a guide column 2, the number of the guide columns 2 is at least three, in this embodiment, the guide columns 2 are symmetrically distributed with two central axes of the base 1 being cross-distributed as symmetry axes, wherein a connecting block 5 is connected between two guide columns 2, the connecting block 5 is arranged on the side of the guide column 2 away from the base 1, the connecting block 5 plays a role of limiting, and can limit a single or multiple guide columns 2, the mounting plate 4 is provided with a shaft sleeve 3, the shaft sleeve 3 is arranged corresponding to the guide column 2, the guide column 2 passes through the shaft sleeve 3, and the outer wall surface of the guide column 2 and the inner wall surface of the shaft sleeve 3 are slidably matched.

[0025] A cylinder 8 is fixedly installed on one side of the mounting plate 4 away from the base 1. The piston end of the cylinder 8 moves through the mounting plate 4 and abuts against the base 1, so that the mounting plate 4 is driven to move up and down relative to the base 1 by the cylinder 8, and the guide column 2 plays a role of pre-positioning and guiding. A fixing structure is fixedly installed on the side wall of the cylinder 8. The fixing structure includes a fixing block 6 and a positioning block 7. The fixing block 6 includes a side wall portion fixed to the cylinder 8, and a baffle 10 fixed to the mounting plate 4. The baffle 10 is provided with a first channel, and the mounting plate 4 is provided with a second channel. The first channel and the second channel correspond to each other.

[0026] A positioning block 7 is fixedly installed on one side of the fixing block 6 away from the mounting plate 4. The positioning block 7 is provided with a limiting groove for limiting the valve body 11. When the valve body 11 is limited in the limiting groove, the limiting groove positions the valve body 11 and limits the radial displacement and axial rotation of the valve body 11. After the fixing block 6 and the positioning block 7 are fixed, a hollow space for accommodating the valve body 11 is formed. The valve body 11 can be sent into the space from the outside, and the valve body 11 is sent into the limiting part through the support seat 9.

[0027] A support seat 9 is fixedly installed on the side of the base 1 close to the mounting plate 4, and the support seat 9 includes a support structure. The support structure can freely pass through the second channel of the mounting plate 4 and the first channel of the baffle 10 and then extend into the fixed structure. The side of the support structure away from the base 1 can be in contact with the valve body 11 for supporting the valve body 11, and a distance is maintained between the support structure and the limiting groove. When the mounting plate 4 moves toward the base 1 under the action of the cylinder 8, the valve body 11 is sent into the limiting groove and limited in the limiting groove under the action of the support seat 9. The valve body 11 can be positioned on the fixed structure through the limiting groove and the support structure, and the valve body 11 has a higher positioning accuracy through the guide column 2 and the support seat 9, so that the ultra-precision process can have a higher accuracy.

[0028] In another embodiment, the supporting structure of the support seat 9 further includes an elastic element, such as a spring, and when the super-precision tool performs super-precision machining on the valve body 11 from top to bottom, the elastic element is in a compressed state, and the initial elastic deformation force of the elastic element is greater than the force of the super-precision tool acting on the valve body 11 when it moves downward. It should be noted here that the force of the super-precision tool acting on the valve body 11 does not include the force when the valve body 11 is offset. If the valve body 11 does not correspond to the tool, the elastic element will be locally deformed by the force, thereby changing the position of the valve body 11. Since the supporting structure used to support the valve body 11 has a certain elasticity, the elastic structure can offset part of the super-precision machining force applied to the valve body 11, thereby preventing the super-precision tool from damaging the valve body 11.

[0029] In this embodiment, the support structure of the support seat 9 is made of elastic materials such as tendon and PVC. The support structure not only has a certain elasticity, but also can provide sufficient supporting force to the valve body 11, and is also relatively easy to install. It can not only offset a part of the force applied to the valve body 11 by the superfinishing work, but also prevent the superfinishing tool from damaging the valve body 11, and enable the valve body 11 to adapt to the downward movement of the superfinishing, adjust the inclination angle of the valve body 11 itself to adapt to the extrusion force generated by the superfinishing core rod, so that the valve body 11 can obtain a smaller amount of adjustment, thereby improving the processing accuracy. Of course, the elastic structure can also achieve the effect of improving the processing accuracy.

[0030] The connecting block 5 is rotatably installed with a limiting bolt, and the connecting block 5 is located on the side of the cylinder 8 away from the fixed block 6. The movement stroke of the mounting plate 4 is achieved by the limiting bolt, and the limiting bolt is adjustable and can be adjusted according to different product models, thereby expanding the scope of application.

[0031] When the valve body automatic ultra-finishing equipment is in use, first fix the base 1 in the mechanism at the required position, then match the valve body 11 with the support seat 9, place the valve body 11 on the side of the support seat 9 away from the base 1, turn on the cylinder 8, and the cylinder 8 works to make the mounting plate 4 move downward along the guide column 2. The movement of the mounting plate 4 moves the cylinder 8, the fixed block 6 and the positioning block 7 fixedly connected thereto, thereby sending the valve body 11 into the limiting portion of the positioning block 7, and the ultra-finishing equipment is started for ultra-finishing. After the processing is completed, the cylinder 8 drives the mounting plate 4 to move upward along the guide column 2, and the movement of the mounting plate 4 moves the cylinder 8, the fixed block 6 and the positioning block 7 fixedly connected thereto, and the valve body 11 moves to the limiting portion away from the positioning block 7, and the processed equipment can be taken out.

[0032] It should be noted here that, in this embodiment, the ultra-finishing is aimed at the valve body, and the ultra-finishing equipment is also applicable to the ultra-finishing of other products or components, which will not be described in detail here.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A valve body automatic ultra-precision mechanism, comprising a base, a mounting plate and a guide column, It is characterized in that The guide column passes through the mounting plate, and the mounting plate and the guide column are slidably matched. A cylinder is fixedly mounted on the side of the mounting plate away from the base, and the piston end of the cylinder moves through the mounting plate and abuts against the base. A fixing structure is fixedly mounted on the side wall of the cylinder, and the fixing structure has a limiting groove. A support seat is fixedly mounted on the side of the base close to the mounting plate, and the support seat has a supporting structure. The supporting structure can freely pass through the mounting plate, and the supporting structure matches the limiting groove and maintains a distance; the fixing structure includes a fixing block and a positioning block, and the fixing block includes a fixing block fixed to the cylinder The side wall portion of the valve body is provided with a first hole, and the mounting plate is provided with a second hole, the first hole and the second hole correspond to each other, the supporting structure passes through the second hole and the first hole and extends into the fixed structure, and the positioning block in the fixed structure is used for clamping and fixing the valve body; the supporting structure includes an elastic element, when the valve body is installed in the fixed structure and the valve body is limited to the limiting groove, the elastic element is in a compressed state, and the elastic deformation force of the elastic element is greater than the force of the ultra-precision tool moving downward on the valve body; the supporting structure is made of PVC material or tendon material.

2. According to claim 1, a valve body automatic superfinishing mechanism, It is characterized in that The mounting plate is provided with a shaft sleeve, and the shaft sleeve is provided corresponding to the guide column. The number of the guide columns is at least three. The guide column passes through the shaft sleeve, and the outer wall surface of the guide column is slidably matched with the inner wall surface of the shaft sleeve.

3. According to claim 1, a valve body automatic superfinishing mechanism, It is characterized in that The positioning block is fixedly connected to a side of the fixing block away from the mounting plate, the limiting groove is located on a side of the positioning block away from the cylinder, a hollow space is formed after the fixing block and the positioning block are fixed, and the supporting structure extends into the hollow space after passing through the second channel and the first channel.

4. According to claim 1, a valve body automatic superfinishing mechanism, It is characterized in that The guide column is connected with a connecting block, which limits the piston of the guide column, and at least one of the guide columns is provided with a connecting block, which is installed with a limiting bolt, and the connecting block is located on the side of the guide column away from the base and the side of the cylinder away from the fixed structure.

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