Machining device for closed hole series

Abstract

The utility model provides a machining device for a closed hole system, and particularly relates to the field of machining. The machining device comprises a first supporting part, a second supporting part, a cutter bar and a plurality of cutter bits. The first supporting part is fixedly mounted on the end wall of a to-be-machined workpiece; the second supporting part is fixedly installed in a cavity of the workpiece to be machined. The cutter bar sequentially penetrates through the first supporting part and the second supporting part and can rotate and axially slide relative to the first supporting part and the second supporting part under the driving of the driving device; the multiple tool bits are fixedly installed on the tool bar and arranged in the axial direction of the tool bar so as to machine the corresponding through holes. Wherein the first supporting part comprises a first lubricating assembly capable of forming an oil film on the surface of the cutter bar correspondingly matched with the first supporting part, and the second supporting part comprises a second lubricating assembly capable of forming an oil film on the surface of the cutter bar correspondingly matched with the second supporting part. According to the machining device, friction between the supporting part and the cutter bar is reduced, the coaxiality of a hole system is improved, and the machining precision is improved.

Description

Technical Field

[0001] The utility model relates to the field of mechanical processing, in particular to a processing device for a closed hole system. Background Art

[0002] The pump body is one of the main components of the pump. It provides structural support for the pump and ensures that the pump can work properly. The pump body is usually equipped with multiple hole systems for extracting liquids. Each hole system consists of multiple through holes. The above-mentioned multiple through holes are usually connected to pipes, valves or other components to form a complete liquid delivery system. Large pump body parts often have longer hole systems. Especially for some closed hole systems with one end open and the other end closed, during processing, multiple through holes to be processed can only be processed in sequence along the axial direction of the hole system from the opening at one end. Since the distance between the hole systems on the same axis is long, the tool used is long, the tool rod is easy to shake during processing, and it is difficult to maintain a high coaxiality for multiple holes to be processed. Utility Model Content

[0003] In view of the above shortcomings of the prior art, the utility model provides a closed hole system processing device to improve the closed hole system processing difficulties and poor coaxiality problems.

[0004] In order to achieve the above-mentioned purpose and other related purposes, the utility model provides a closed hole system processing device, which is used to extend into the cavity of the workpiece to be processed to process multiple through holes. The processing device includes a first support part, a second support part, a tool rod and multiple tool heads. The first support part is fixedly mounted on the end wall of the workpiece to be processed; the second support part is fixedly mounted in the cavity of the workpiece to be processed; the tool rod passes through the first support part and the second support part in sequence, and can rotate and slide axially relative to the first support part and the second support part under the drive of the driving device; multiple tool heads are fixedly mounted on the tool rod and arranged along the axial direction of the tool rod to process the corresponding through holes respectively. Wherein, the first support part includes a first lubrication component that can form an oil film on the surface of the tool rod corresponding to it, and the second support part includes a second lubrication component that can form an oil film on the surface of the tool rod corresponding to it.

[0005] In an example of the present invention, the first supporting portion further includes a first fixing member, the first fixing member is fixedly mounted on the inner wall of the workpiece to be processed, a first cavity is provided on the first fixing member, and the first lubrication assembly is installed in the first cavity.

[0006] In one example of the utility model, the first support portion also includes a first adjustment component for adjusting the distance between the first fixing member and the first lubrication component, and the first adjustment component includes a plurality of first threaded holes evenly distributed along the circumference of the first fixing member and bolts matching the plurality of first threaded holes.

[0007] In an example of the present invention, the second supporting portion further includes a second fixing member, the second fixing member is fixedly installed inside the workpiece to be processed, a second chamber is provided on the second fixing member, and the second lubrication assembly is installed in the second chamber.

[0008] In one example of the utility model, the second support portion also includes a second adjustment component for adjusting the distance between the second fixing member and the second lubrication component, and the second adjustment component includes a plurality of second threaded holes evenly distributed along the circumference of the second fixing member and bolts matching the plurality of second threaded holes.

[0009] In one example of the utility model, the cutter head includes a fixing portion and a processing portion, the fixing portion is fixedly connected to the processing portion, the fixing portion is a circular ring formed by two semicircular structures, and the inner diameter of the circular ring matches the diameter of the cutter rod.

[0010] In an example of the present invention, the first supporting portion further includes a first sealing component, and the first sealing component is fixedly mounted on a side of the first fixing member close to the second supporting portion.

[0011] In an example of the present invention, the second support portion further includes a second sealing assembly and a third sealing assembly, the second sealing assembly being fixedly mounted on a side of the second fixing member close to the first support portion, and the third sealing assembly being fixedly mounted on a side of the second fixing member away from the first support portion.

[0012] In an example of the present invention, the first supporting portion is installed inside the workpiece to be processed, and a mounting piece is provided at one end of the first fixing member away from the second supporting portion, and the mounting piece is arranged along the circumference of the first fixing member.

[0013] In an example of the present invention, fixing plates are provided at both ends of the second fixing member, the fixing plates are installed on the outside of the workpiece to be processed, and the second fixing member is fixedly installed with the workpiece to be processed through the fixing plates.

[0014] The utility model provides a closed hole system processing device, wherein the first support part and the second support part are fixedly installed on the workpiece to support the tool, and the first support part and the second support part both include a lubrication component that forms an oil film on the surface of the guide rod to reduce the friction between the first support part and the second support part and the tool bar, and reduce the frictional heat generated during the rotation of the tool bar. Furthermore, multiple tool heads are fixedly installed along the axial direction of the tool bar, so that multiple holes to be processed in the same hole system can be processed, which is conducive to ensuring the coaxiality of the hole system and improving the processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of a processing device for a closed hole system of the utility model in one embodiment;

[0017] Figure 2 It is a schematic diagram of the installation of the closed hole system processing device of the utility model and the workpiece to be processed in one embodiment;

[0018] Figure 3 It is a schematic diagram of the installation of a tool rod, a tool head, a first support part and a second support part in an embodiment of a processing device for a closed hole system of the utility model.

[0019] Component number description

[0020] 10. Workpiece to be processed; 100. First supporting part; 110. First lubrication assembly; 120. First fixing part; 121. Mounting plate; 130. First sealing assembly; 200. Second supporting part; 210. Second lubrication assembly; 220. Second fixing part; 230. Fixing plate; 240. Second sealing assembly; 250. Third sealing assembly; 300. Tool rod; 400. Tool head. DETAILED DESCRIPTION

[0021] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and the features in the embodiments can be combined with each other without conflict. It should also be understood that the terms used in the embodiments of the present invention are intended to describe specific implementation schemes, rather than to limit the scope of protection of the present invention. The test methods for which specific conditions are not specified in the following examples are usually carried out under conventional conditions or under the conditions recommended by the manufacturers.

[0022] It should be noted that the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present utility model. Changes or adjustments to their relative relationships should be regarded as the scope of implementation of the present utility model without substantially changing the technical content.

[0023] See also Figures 1 to 3 As one of the main components of the pump, the pump body is usually provided with a plurality of hole systems, each of which includes a plurality of coaxially arranged through holes, and the plurality of through holes are connected to other components of the pump to realize the function of the pump. The hole systems of large pump body parts are generally longer, and the hole systems are all closed hole systems with one end open and the other end closed. In order to avoid the shaking of the tool rod during the processing and ensure the coaxiality of the same hole system, the utility model provides a processing device for a closed hole system, which is used to extend into the cavity of the workpiece 10 to be processed to process multiple through holes.

[0024] The processing device includes a first support portion 100, a second support portion 200, a tool bar 300 and a plurality of tool heads 400. The first support portion 100 is fixedly mounted on the end wall of the workpiece 10 to be processed, the second support portion 200 is fixedly mounted in the cavity of the workpiece 10 to be processed, the tool bar 300 passes through the first support portion 100 and the second support portion 200 in sequence, and can rotate and slide axially relative to the first support portion 100 and the second support portion 200 under the drive of the driving device, and the plurality of tool heads 400 are fixedly mounted on the tool bar 300 and arranged along the axial direction of the tool bar 300 to process the corresponding through holes respectively. Further, the first support portion 100 includes a first lubrication component 110 that can form an oil film on the surface of the tool bar 300 that it corresponds to, and the second support portion 200 includes a second lubrication component 210 that can form an oil film on the surface of the tool bar 300 that it corresponds to. The first support part 100 and the second support part 200 support and fix the tool rod 300, thereby reducing the shaking of the tool rod 300. The oil film on the surface of the tool rod 300 can reduce the friction between the tool rod 300 and the first support part 100 and the second support part 200. The multiple tool heads 400 on the tool rod 300 can simultaneously process multiple through holes of the same hole system, ensuring the coaxiality of the hole system and helping to improve processing accuracy.

[0025] See also Figure 1 and Figure 3 In one embodiment, the first support part 100 further includes a first fixing member 120, which is fixedly mounted on the inner wall of the workpiece 10 to be processed, and a first chamber is provided on the first fixing member 120, and the first lubricating assembly 110 is installed in the first chamber. The structure of the first fixing member 120 is not limited in the present application, and the first fixing member 120 can be any housing that can be installed with the first lubricating assembly 110. In this embodiment, the first fixing member 120 is a cylindrical housing, and a mounting plate 121 is provided at one end of the first fixing member 120 away from the second support part 200, and the mounting plate 121 is fixedly connected to the first fixing member 120, and the mounting plate 121 is arranged along the circumference of the first fixing member 120. Specifically, a plurality of mounting holes are provided on the mounting plate 121, and a plurality of threaded holes corresponding to the mounting holes are provided at corresponding positions of the workpiece 10 to be processed, and the threaded holes pass through the mounting holes on the mounting plate 121 and are threadedly connected with the threaded holes on the workpiece 10 to be processed, so as to fix the first fixing member 120 on the workpiece 10 to be processed. In other embodiments, the first support part 100 may also be installed on the outer wall of the workpiece 10 to be processed, or on both the outer wall and the inner wall of the workpiece 10 to be processed. The installation method is the same as the above installation method and will not be repeated here.

[0026] See also Figure 1 and Figure 2In one embodiment, the second support portion 200 further includes a second fixing member 220, which is fixedly mounted inside the workpiece 10 to be processed, and a second chamber is provided on the second fixing member 220, and the second lubrication assembly 210 is installed in the second chamber. There is no restriction on the installation method of the second fixing member 220, and it is sufficient to fix the second fixing member 220 to the workpiece 10 to be processed. Exemplarily, a fixing plate 230 is provided at both ends of the second fixing member 220, and the fixing plate 230 is installed on the outside of the workpiece 10 to be processed, and the second fixing member 220 is fixedly mounted to the workpiece 10 to be processed through the fixing plate 230. There is no restriction on the shape of the second fixing member 220 here, and it is adjusted according to the inner cavity structure of the workpiece 10 to be processed. In this embodiment, the second fixing member 220 includes three through holes for fixing the tool rod 300, corresponding to the three hole systems of the workpiece 10 to be processed, and the length of the second fixing member 220 matches the width of the workpiece 10 to be processed. A plurality of through holes are provided on the side panels at both ends of the fixing plate 230, and a plurality of threaded holes matching the through holes on the fixing plate 230 are provided on the workpiece 10 to be processed and the second fixing member 220. The fixing plate 230 is installed on the outside of the workpiece 10 to be processed by threaded connection between bolts and the threaded holes on the fixing plate 230, and the second fixing member 220 is fixedly connected to the fixing plate 230 by threaded cooperation between the bolts and the threaded holes on the second fixing member 220, thereby fixing the second fixing member 220 on the workpiece 10 to be processed.

[0027] See also Figure 1 and Figure 3 In one embodiment, the first lubricating assembly 110 is clearance-matched with the first fixing member 120, and the first supporting portion 100 further includes a first adjusting assembly for adjusting the distance between the first fixing member 120 and the first lubricating assembly 110, and the first adjusting assembly includes a plurality of first threaded holes evenly distributed along the circumference of the first fixing member 120 and bolts matching the plurality of first threaded holes. The second lubricating assembly 210 is clearance-matched with the second fixing member 220, and the second supporting portion 200 further includes a second adjusting assembly for adjusting the distance between the second fixing member 220 and the second lubricating assembly 210, and the second adjusting assembly includes a plurality of second threaded holes evenly distributed along the circumference of the second fixing member 220 and bolts matching the plurality of second threaded holes. The central axes of the first lubricating assembly 110 and the second lubricating assembly 210 can be adjusted by the first adjusting assembly and the second adjusting assembly to ensure the coaxiality of the tool bar 300 and the hole system to be processed, thereby improving the processing accuracy.

[0028] See also Figure 1In one embodiment, the first support portion 100 further includes a first sealing assembly 130, which is fixedly mounted on a side of the first fixing member 120 close to the second support portion 200. The second support portion 200 further includes a second sealing assembly 240 and a third sealing assembly 250, wherein the second sealing assembly 240 is fixedly mounted on a side of the second fixing member 220 close to the first support portion 100, and the third sealing assembly 250 is fixedly mounted on a side of the second fixing member 220 away from the first support portion 100. The first sealing assembly 130 is fixedly connected to the end surface of the first fixing member 120, and the second sealing assembly 240 and the third sealing assembly 250 are fixedly mounted to both ends of the axial direction of the second fixing member 220 to prevent iron filings generated by machining the workpiece 10 from entering the lubrication assembly to contaminate the lubricating oil and to avoid affecting the lubrication effect of the tool bar 300.

[0029] See also Figure 3 In one embodiment, the cutter head 400 includes a fixed portion and a processing portion, the fixed portion is fixedly connected to the processing portion, the fixed portion is a circular ring formed by two semicircular structures, and the inner diameter of the circular ring matches the diameter of the tool rod 300. The two semicircular structures of the fixed portion facilitate the installation and disassembly of the cutter head 400, and the position of the cutter head 400 can be adjusted according to the distribution of the holes to be processed to meet the processing requirements of different hole systems. In other real-time embodiments, the cutter head 400 can also be other shapes, for example, the fixed portion is formed by two rectangular blocks with grooves, and the through hole formed by the two grooves being assembled matches the diameter of the cutter rod 300. There is no limitation on the shape of the cutter head 400 here, as long as it is convenient to install and disassemble.

[0030] The utility model provides a closed hole system processing device, wherein the first support portion and the second support portion are fixedly mounted on the workpiece to support the tool, and the first support portion and the second support portion both include a lubrication component that forms an oil film on the surface of the guide rod to reduce the friction between the first support portion and the second support portion and the tool rod, and reduce the frictional heat generated during the rotation of the tool rod. Furthermore, multiple tool heads are fixedly mounted along the axial direction of the tool rod, so that multiple holes to be processed in the same hole system can be processed, which is beneficial to ensure the coaxiality of the hole system and improve the processing accuracy. Therefore, the utility model effectively overcomes some practical problems in the prior art and has a high utilization value and use significance.

[0031] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A closed hole system processing device, used for extending into the cavity of a workpiece to be processed to process multiple through holes, characterized in that: include: A first supporting portion, fixedly mounted on an end wall of the workpiece to be processed; A second supporting portion, fixedly mounted in the cavity of the workpiece to be processed; A knife bar, which passes through the first supporting part and the second supporting part in sequence, and can rotate and slide axially relative to the first supporting part and the second supporting part under the drive of the driving device; A plurality of cutter heads, wherein the plurality of cutter heads are fixedly mounted on the cutter bar and arranged along the axial direction of the cutter bar to process the corresponding through holes respectively; Wherein, the first support portion includes a first lubricating component capable of forming an oil film on the surface of the tool rod corresponding to it, and the second support portion includes a second lubricating component capable of forming an oil film on the surface of the tool rod corresponding to it.

2. The closed hole system processing device according to claim 1, characterized in that: The first supporting portion further includes a first fixing member, which is fixedly mounted on the inner wall of the workpiece to be processed, a first cavity is provided on the first fixing member, and the first lubrication assembly is installed in the first cavity.

3. The closed hole system processing device according to claim 2, characterized in that: The first supporting portion further includes a first adjusting component for adjusting the distance between the first fixing member and the first lubrication component. The first adjusting component includes a plurality of first threaded holes evenly distributed along the circumference of the first fixing member and bolts matching the plurality of first threaded holes.

4. The closed hole system processing device according to claim 1, characterized in that: The second supporting portion further includes a second fixing member, which is fixedly mounted inside the workpiece to be processed. The second fixing member is provided with a second chamber, and the second lubrication assembly is mounted in the second chamber.

5. The closed hole system processing device according to claim 4, characterized in that: The second supporting portion also includes a second adjusting component for adjusting the distance between the second fixing member and the second lubrication component. The second adjusting component includes a plurality of second threaded holes evenly distributed along the circumference of the second fixing member and bolts matching the plurality of second threaded holes.

6. The closed hole system processing device according to claim 1, characterized in that: The cutter head comprises a fixing part and a processing part, wherein the fixing part is fixedly connected to the processing part, and the fixing part is a circular ring formed by two semicircular structures, and the inner diameter of the circular ring matches the diameter of the cutter rod.

7. The closed hole system processing device according to claim 2, characterized in that: The first supporting portion further includes a first sealing assembly, and the first sealing assembly is fixedly mounted on a side of the first fixing member close to the second supporting portion.

8. The closed hole system processing device according to claim 4, characterized in that: The second supporting portion further includes a second sealing assembly and a third sealing assembly. The second sealing assembly is fixedly mounted on a side of the second fixing member close to the first supporting portion, and the third sealing assembly is fixedly mounted on a side of the second fixing member away from the first supporting portion.

9. The closed hole system processing device according to claim 2, characterized in that: The first supporting portion is installed inside the workpiece to be processed, and a mounting piece is provided at one end of the first fixing member away from the second supporting portion, and the mounting piece is arranged along the circumference of the first fixing member.

10. The closed hole system processing device according to claim 4, characterized in that: Two ends of the second fixing member are provided with fixing plates, the fixing plates are installed on the outside of the workpiece to be processed, and the second fixing member is fixedly installed with the workpiece to be processed through the fixing plates.

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