Auxiliary device for honing inner hole of valve body

Abstract

The utility model relates to an auxiliary device for honing an inner hole of a valve body. The auxiliary device comprises a bottom plate, a supporting plate, a baffle, a guide plate, a guide sleeve and a core fixing seat, a core fixing base penetrates through the center of the bottom plate, a supporting plate is arranged at the top of the bottom plate and is of a cuboid structure, one side wall of the supporting plate is open, a baffle is arranged on the outer side of the side wall opposite to the open side wall, a guide plate is arranged at the top of the supporting plate, and a guide sleeve penetrates through the center of the guide plate. The distance from the bottom surface of the guide plate to the bottom of the guide sleeve is greater than that from the top surface of the bottom plate to the top of the fixed core seat; according to the valve body inner hole honing auxiliary device, the clamp time and the clamping time are saved; the tool is simple and convenient to operate and practical, the machining efficiency is improved, the labor intensity of workers is relieved, multiple valve body valve holes are honed at the same time through the tool, a workpiece can be rapidly and accurately positioned, and the machining precision of the honing holes of the honing valve bodies is guaranteed; and a worker can easily master the operation of multiple machines by one person.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, and in particular to an auxiliary device for honing the inner hole of a valve body. Background Technology

[0002] The precision of the valve body and valve orifice directly affects the system's sealing performance, stability, and reliability. Good orifice wall surface quality allows for a tighter fit between the valve core and the valve orifice, reducing the possibility of leakage and improving the valve body's sealing performance. In some precision hydraulic control systems, the leakage rate of the valve body is required to be less than 0.1 ml / min; honed orifices can meet this requirement.

[0003] After honing, the bore wall surface forms spiral cross-grooves at a certain angle. These grooves can store lubricating oil, forming a good oil film during valve operation. This reduces friction and wear between the valve core and the valve bore, improving the valve body's service life and operating efficiency, and lowering energy consumption and maintenance costs. For example, in some high-pressure hydraulic valves, honed valve bores can increase the valve core's service life by more than 50%.

[0004] In traditional manufacturing processes, the surface roughness of drilled holes is relatively high, making it difficult to meet the surface quality requirements of valve body holes. While reaming can improve the accuracy and surface quality of holes to some extent, for some high-precision valve body holes, the accuracy and surface roughness after reaming still cannot meet the requirements.

[0005] Existing tooling fixtures have the problem of being inconvenient to quickly clamp and fix according to the size of the valve body, which makes it difficult to accurately position the valve hole, reduces honing efficiency, and causes unstable positioning during the grinding process, which can easily cause the valve body to shake, thus affecting the honing effect of the valve hole.

[0006] Given the current situation, it is imperative to develop an auxiliary tooling that can both improve processing efficiency and ensure high precision. Utility Model Content

[0007] To address the issues of existing tooling fixtures being inconvenient for quick clamping and fixing according to the size of the valve body, and the instability in positioning during the grinding process, an auxiliary device for honing the inner hole of the valve body is proposed.

[0008] The technical solution of this utility model is as follows: an auxiliary device for honing the inner hole of a valve body, comprising a base plate, a support plate, a baffle, a guide plate, a guide sleeve, and a core-fixing seat; the core-fixing seat is inserted through the center of the base plate, the support plate is provided on the top of the base plate, the support plate is a cuboid structure, one side wall of the support plate is open, a baffle is provided on the outer side of the opposite open side wall, the guide plate is provided on the top of the support plate, and the guide sleeve is inserted through the center of the guide plate; the distance from the bottom surface of the guide plate to the bottom of the guide sleeve is greater than the distance from the top surface of the base plate to the top of the core-fixing seat.

[0009] Preferably, the base plate and the support plate are connected by a plurality of first screws; a first positioning pin is provided between the base plate and the support plate.

[0010] Preferably, the baffle and the support plate are connected by a plurality of second screws; a second positioning pin is provided between the baffle and the support plate.

[0011] Preferably, the guide plate and the support plate are connected by a plurality of third screws; a third positioning pin is provided between the guide plate and the support plate.

[0012] Preferably, the positioning pin holes on the baffle are on the same plane as the positioning pin holes on the base plate and the guide plate.

[0013] Preferably, the base plate has a first countersunk hole at its center, and a plurality of first stepped holes and pin holes are provided around the first countersunk hole. The base plate is fixed to the honing machine worktable by bolts in the first stepped holes and positioning pins in the pin holes.

[0014] Preferably, the base of the centering seat is disposed on a step in the first countersunk hole, and a second step hole is provided at the step in the first countersunk hole, and the base plate is fixedly connected by bolts in the second step hole.

[0015] Preferably, the guide plate has a second countersunk hole at its center, and the vertical surface at the bottom of the second countersunk hole step is threaded. One end of the guide sleeve is cylindrical, and the section near the cylinder is stepped. The outer side of the stepped section is threaded, and the end away from the cylinder is an external hexagonal head that matches a wrench. The guide sleeve is inserted into the second countersunk hole and connected to the guide plate through the thread.

[0016] The beneficial effects of this utility model are as follows: This utility model provides an auxiliary device for honing the inner hole of a valve body, which saves time on fixtures and clamping; moreover, it is simple to operate and practical, which not only improves processing efficiency but also reduces the labor intensity of employees. By honing multiple valve body holes simultaneously through this tooling, the workpiece can be positioned quickly and accurately, ensuring the processing accuracy of the honing holes of the valve body; moreover, it is easy for workers to learn and can easily achieve one person operating multiple machines. Attached Figure Description

[0017] Figure 1 This is a perspective view of the auxiliary device for honing the inner bore of the valve body according to this utility model;

[0018] Figure 2 This is a left view of the auxiliary device for honing the inner hole of the valve body according to this utility model;

[0019] Figure 3 This is a front view of the auxiliary device for honing the inner hole of the valve body according to this utility model;

[0020] Figure 4 This is a perspective view of the base plate of this utility model;

[0021] Figure 5 This is a perspective view of the guide sleeve of this utility model.

[0022] The component names corresponding to the various reference numerals in the diagram are as follows:

[0023] 1. Base plate; 11. First stepped hole; 12. Pin hole; 13. First countersunk hole; 14. Second stepped hole; 15. First screw; 16. First locating pin; 2. Support plate; 3. Baffle; 31. Second screw; 32. Second locating pin; 4. Guide plate; 41. Third screw; 42. Third locating pin; 43. Second countersunk hole; 5. Guide sleeve; 51. External hexagonal head; 52. External thread; 53. Cylindrical; 6. Core holder. Detailed Implementation

[0024] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. This embodiment is based on the technical solution of the present invention and provides detailed implementation methods and specific operating procedures; however, the scope of protection of the present invention is not limited to the following embodiments.

[0025] refer to Figure 1 , 2 As shown in the embodiment of this application, an auxiliary device for honing the inner hole of a valve body is disclosed, including a base plate 1, a support plate 2, a baffle 3, a guide plate 4, a guide sleeve 5, and a core fixing seat 6; the core fixing seat 6 is inserted through the center of the base plate 1, and the support plate 2 is provided on the top of the base plate 1. The support plate 2 has a cuboid structure, and one side wall of the support plate 2 is open. A baffle 3 is provided on the outer side of the side wall opposite to the open side wall; the baffle 3 acts as a reinforcing rib, which effectively improves the rigidity of the entire device;

[0026] The top of the support plate 2 is provided with a guide plate 4, and the center of the guide plate 4 is provided with a circular hole. One end of the guide sleeve 5 is a cylinder 53. The guide sleeve 5 is inserted into the circular hole and connected to the guide plate 4. The cylindrical surface of the lower cylinder 53 is matched with the inner hole of the workpiece to realize the positioning of the workpiece. Secondly, the lower end face is pressed against the end face of the workpiece to restrict the degree of freedom of the workpiece in the upper and lower directions.

[0027] To achieve quick disassembly, the distance from the bottom surface of the guide plate 4 to the bottom surface of the guide sleeve 5 is greater than the distance from the top surface of the base plate 1 to the top surface of the core holder 6.

[0028] The base plate 1 and the support plate 2 are connected by a plurality of first screws 15; a first positioning pin 16 is provided between the base plate 1 and the support plate 2, and the function of the first positioning pin 16 is to position the components to each other.

[0029] The baffle 3 and the support plate 2 are connected by a plurality of second screws 31; a second positioning pin 32 is provided between the baffle 3 and the support plate 2, and the function of the second positioning pin 32 is to position the components to each other.

[0030] The guide plate 4 and the support plate 2 are connected by a plurality of third screws 41; a third positioning pin 42 is provided between the guide plate 4 and the support plate 2, and the function of the third positioning pin 42 is to position the components to each other.

[0031] The positioning pin holes on the baffle 3 are on the same plane as the positioning pin holes on the base plate 1 and the guide plate 4, which makes the positioning accuracy of the entire structure higher.

[0032] refer to Figure 3 , 4 As shown, the base plate 1 has a first countersunk hole 13 at its center, and a plurality of first stepped holes 11 and pin holes 12 are provided around the first countersunk hole 13, so that the base plate 1 is fixed on the honing machine worktable by bolts in the first stepped holes 11 and positioning pins in the pin holes 12.

[0033] The base of the centering seat 6 is inserted into the first countersunk hole 13 and is positioned on a step within the first countersunk hole 13. A second stepped hole 14 is provided at the step within the first countersunk hole 13, and the centering seat 6 is fixedly connected to the base plate 1 through bolts in the second stepped hole 14. The small cylindrical surface on the top surface of the centering seat 6 mates with the cylindrical surface of the workpiece to achieve positioning.

[0034] refer to Figure 1 , 3 As shown in Figure 5, the guide plate 4 has a second countersunk hole 43 at its center. The vertical surface at the bottom of the step of the second countersunk hole 43 is threaded. One end of the guide sleeve 5 is a cylinder 53, and the section near the cylinder 53 is stepped. The outer side of the stepped section is threaded 52. The end of the thread 52 away from the cylinder 53 is an external hexagonal head 51 that matches a wrench. The guide sleeve 5 is inserted into the second countersunk hole 43 and connected to the guide plate 4 through the thread.

[0035] Specific working method: The open-end wrench is unscrewed through the hexagonal head 51 of the guide sleeve 5. The workpiece is placed on the auxiliary device, and the small cylindrical surface of the centering seat 6 mates with the lower end hole of the workpiece to achieve centering. The end face contacts the end face of the lower inner hole of the workpiece to achieve support.

[0036] The guide sleeve 5 is screwed onto the thread of the guide plate 4 using a wrench. The cylindrical surface of one end of the guide sleeve 5 (cylindrical 53) mates with the upper hole of the workpiece for positioning. Simultaneously, the lower end face of the guide sleeve 5 is screwed onto the upper end face of the workpiece, restricting the workpiece's vertical freedom. The honing tool processes the workpiece through the through hole in the center of the guide sleeve 5.

[0037] To achieve quick disassembly, the distance from the bottom surface of the guide plate 4 to the bottom surface of the guide sleeve 5 is greater than the distance from the top surface of the base plate 1 to the top surface of the core holder 6.

[0038] The beneficial effects are as follows: This utility model provides an auxiliary device for honing the inner hole of a valve body, which saves time on fixtures and clamping; it is also simple and practical to operate, which not only improves processing efficiency but also reduces the labor intensity of employees. By honing multiple valve body holes at the same time through this tooling, the workpiece can be positioned quickly and accurately, ensuring the processing accuracy of the honing holes of the valve body; moreover, it is easy for workers to learn and can easily achieve one person operating multiple machines.

[0039] It should be noted that the terms "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. "A plurality of" means two or more. "Installed," "connected," and "joined" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection.

[0040] The above description is merely a preferred embodiment of this utility model and is not intended to limit this utility model in any form or substance. It should be noted that those skilled in the art can make various improvements and additions without departing from this utility model, and these improvements and additions should also be considered within the protection scope of this utility model. Any modifications, alterations, and equivalent changes made by those skilled in the art without departing from the spirit and scope of this utility model using the disclosed technical content are equivalent embodiments of this utility model. Furthermore, any modifications, alterations, and evolutions made to the above embodiments based on the essential technology of this utility model are still within the scope of the technical solution of this utility model.

Claims

1. An auxiliary device for honing the inner bore of a valve body, characterized in that, The utility model provides a kind of core setting device, including bottom plate (1), support plate (2), baffle (3), guide plate (4), guide sleeve (5), fixed core seat (6);Bottom plate (1) center is provided with fixed core seat (6), bottom plate (1) top is provided with support plate (2), support plate (2) is cuboid structure, support plate (2) one side wall is open, and the outer side of opposite open side wall is provided with baffle (3), and the top of support plate (2) is provided with guide plate (4), and the center of guide plate (4) is provided with guide sleeve (5);The distance from the bottom surface of guide plate (4) to the bottom of guide sleeve (5) is greater than the distance from the top surface of bottom plate (1) to the top of fixed core seat (6).

2. The valve body bore honing assist device of claim 1, wherein, The bottom plate (1) and the support plate (2) are connected by a plurality of first screws (15); the first positioning pin (16) is arranged between the bottom plate (1) and the support plate (2).

3. The valve body bore honing assist device of claim 2, wherein, The baffle (3) and the support plate (2) are connected by a plurality of second screws (31); the second positioning pin (32) is arranged between the baffle (3) and the support plate (2).

4. The valve body bore honing assist device of claim 3, wherein, The guide plate (4) and the support plate (2) are connected by a plurality of third screws (41); the third positioning pin (42) is arranged between the guide plate (4) and the support plate (2).

5. The valve body bore honing assist device of claim 4, wherein, The positioning pin holes on the baffle (3) are in the same plane as the positioning pin holes of the bottom plate (1) and the guide plate (4).

6. The valve body bore honing assist device of claim 1, wherein, The bottom plate (1) is centrally provided with a first counterbore (13), a plurality of first stepped holes (11) and pin holes (12) are arranged around the first counterbore (13), and the bottom plate (1) is fixed on the honing machine workbench by bolts in the first stepped holes (11) and positioning pins in the pin holes (12).

7. The valve body bore honing assist device of claim 6, wherein, The base of the fixed core seat (6) is arranged on a step in the first counterbore (13), a second stepped hole (14) is arranged at the step in the first counterbore (13), and the fixed core seat (6) is fixedly connected with the bottom plate (1) by a bolt in the second stepped hole (14).

8. The valve bore honing assist device of claim 1, wherein, The guide plate (4) is centrally provided with a second counterbore (43), a vertical surface at the bottom of the step of the second counterbore (43) is provided with threads, one end of the guide sleeve (5) is a cylinder (53), a section close to the cylinder (53) is stepped, the outer side of the stepped section is provided with threads (52), the end of the threads (52) away from the cylinder (53) is an outer hexagonal head (51) matched with a wrench, the guide sleeve (5) is inserted into the second counterbore (43) and connected with the guide plate (4) by threads.

Images