Oil pump outward rotation machining jig

Abstract

The utility model relates to an oil pump outward rotation machining jig. The oil pump outward rotation machining jig comprises a body, a movable block, a pull rod, a top cover, an outer lantern ring and a compression spring. A movable block is installed between every two adjacent first body sections, pull rods are installed in the first body cavities, the second body cavities and the third body cavities, the first body sections are sleeved with outer lantern rings, the outer lantern rings are fixed to the second body sections, and compression springs are installed in spring installation holes. The inner end of the compression spring makes contact with the outer side face of the movable block, a top cover is fixed to the top face of the first section of the body, a top cover alignment section, a top cover guide cavity and a first oblique cone movable cavity which are arranged in the top cover are aligned with the parallel grooves respectively, and a first guide section and a first oblique cone section of the pull rod are arranged in the pull rod. When the clamp is used for machining an oil pump outward rotating product, the clamping area is increased, so that the product can be clamped more stably and effectively, and the machining precision of the product can be controlled more stably in the machining process.

Description

TECHNICAL FIELD

[0001] The utility model discloses a turning tool for powder metallurgy product, and specifically discloses an oil pump outer rotation turning tool. BACKGROUND

[0002] With the vigorous development of domestic manufacturing industry, the precision of parts is higher and higher today. The early processing tool gradually cannot meet the requirements. How to improve the stability and properness of the tool is relatively important. For example, the inner expansion turning clamping tool of the outer rotation of the oil pump, because the single taper pull rod supporting sheet mode is adopted, the sheet action section is easy to form a circular segment arch, and only line contact with the product is formed. This causes the instability of the processing size. SUMMARY

[0003] The utility model discloses a purpose that overcomes the deficiency in the prior art, provides an oil pump outer rotation turning tool that can stably and effectively clamp products and make the products more stably control the processing precision in the processing process.

[0004] According to the technical scheme provided by the utility model, the oil pump outer rotation turning tool comprises a body, a moving block, a pull rod, a top cover, an outer sleeve ring and a compression spring.

[0005] The body comprises a second segment of a circular sheet, a plurality of first segments of a fan ring column fixed to the upper surface of the second segment of the body and a third segment of a cylinder fixed to the lower surface of the second segment of the body, the first segment, the second segment and the third segment of the body are coaxially arranged, the outer diameter of the second segment of the body is greater than the outer diameter of the third segment of the body, the inner wall and the outer wall of all the first segments of the body are concentric, the outer diameter of the second segment of the body is greater than the outer diameter of the first segment of the body, the inner wall of all the first segments of the body forms a first cavity of the body in a cylindrical shape, a second cavity of the body and a third cavity of the body in a cylindrical shape are arranged inside the second segment and the third segment of the body, the first cavity of the body, the second cavity of the body and the third cavity of the body are arranged from large to small downward and penetrate the body, the adjacent side walls of the two first segments of the body are arranged in parallel, and parallel grooves are formed by the adjacent side walls of the two first segments of the body.

[0006] The moving block comprises a moving block body, the left side and the right side of the moving block body are arranged in parallel, the distance between the left side and the right side of the moving block body matches the parallel grooves arranged in the body, the first contour of the moving block is arranged on the outer side of the moving block body and matches the tooth profile arranged in the outer rotation of the pump, and the first inclined cone segment and the second inclined cone segment of the moving block are arranged on the inner side of the moving block body and are arranged in a spaced manner in the height direction.

[0007] The pull rod comprises, from top to bottom, a pull rod first guide section, a pull rod first inclined cone base section, a pull rod first inclined cone section, a pull rod inclined cone connecting section, a pull rod second inclined cone base section, a pull rod second inclined cone section, a pull rod second guide section and a pull rod thread section which are coaxially connected in sequence; the pull rod first guide section, the pull rod first inclined cone base section, the pull rod inclined cone connecting section, the pull rod second inclined cone base section and the pull rod second guide section are all cylindrical sections; the pull rod first inclined cone section and the pull rod second inclined cone section are both circular truncated cone sections with small head ends downward; the pull rod first inclined cone base section and the large head end of the pull rod first inclined cone section have equal diameters; the pull rod inclined cone connecting section and the small head end of the pull rod first inclined cone section have equal diameters; the pull rod second inclined cone base section and the large head end of the pull rod second inclined cone section have equal diameters; the pull rod second guide section and the small head end of the pull rod second inclined cone section have equal diameters; the inclination of the pull rod first inclined cone section matches the inclination of a first inclined cone section of the moving block; the inclination of the pull rod second inclined cone section matches the inclination of a second inclined cone section of the moving block.

[0008] The center of the top cover is provided with a top cover guide cavity and a first inclined cone movable cavity which are coaxially connected; the top cover guide cavity and the first inclined cone movable cavity are combined and pass through the top cover; a top cover alignment section corresponding to the parallel groove in the body is arranged below the top cover.

[0009] A spring installation hole corresponding to the position of the parallel groove in the body is arranged in the outer sleeve ring.

[0010] The moving block is installed between two adjacent body first sections; the pull rod is installed in the body first cavity, the body second cavity and the body third cavity; the outer sleeve ring is sleeved on the outside of the body first section; the outer sleeve ring is fixed to the body second section; the compression spring is installed in the spring installation hole; the outer end of the compression spring is limited and the inner end is free; the inner end of the compression spring is in contact with the outer side surface of the moving block; the top cover is fixed to the top surface of the body first section; the top cover alignment section, the top cover guide cavity and the first inclined cone movable cavity in the top cover are respectively aligned with the first guide section and the first inclined cone section of the pull rod.

[0011] As a preferred, a top cover locking screw is further included; a top cover locking screw passing hole is arranged on the top surface of the top cover; a body first threaded hole is arranged on the top surface of the body first section; the body first section and the top cover are combined and fixed by the top cover locking screw passing through the top cover locking screw passing hole and using the body first threaded hole.

[0012] As preferred, the outer sleeve ring locking screw is further included, the outer sleeve ring locking screw passing hole is formed on the outer sleeve ring, the body second threaded hole is formed on the body second section corresponding to the outside of the body first section and the body third section, the body second threaded hole penetrates the top surface and the bottom surface of the body second section, the outer sleeve ring locking screw passes through the outer sleeve ring locking screw passing hole and is screwed in the body second threaded hole to combine and fix the outer sleeve ring and the body second section.

[0013] As preferred, the compression spring positioning screw is further included, the spring fixing internal thread is arranged in the outer sleeve ring corresponding to the outer end of the spring accommodating hole, the compression spring positioning screw is installed in the spring fixing internal thread, and the outer end of the compression spring is limited by the compression spring positioning screw.

[0014] The oil pump outer rotating product is processed by using the utility model, the jig and the oil pump outer rotating product adopt surface contact, the clamping area is increased, and therefore the oil pump outer rotating product can be clamped more stably and effectively, and the processing precision of the oil pump outer rotating product can be controlled more stably during the processing. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a top view of the body in the utility model.

[0016] Figure 2 is Figure 1 A-A sectional view perspective view of.

[0017] Figure 3 is a perspective view of the moving block in the utility model.

[0018] Figure 4 is a perspective view of the pull rod in the utility model.

[0019] Figure 5 is a top view of the top cover in the utility model.

[0020] Figure 6 is Figure 5 B-B sectional view perspective view of.

[0021] Figure 7 is a top view of the outer sleeve ring in the utility model.

[0022] Figure 8 is Figure 7 C-C sectional view perspective view of.

[0023] Figure 9 is a top view of the utility model.

[0024] Figure 10 is Figure 9 D-D sectional view perspective view of. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the utility model embodiment clearer, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the utility model embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0026] An oil pump outer turning processing jig, it includes body 1, moving block 2, pull rod 3, top cover 4, outer sleeve ring 6 and compression spring 8;

[0027] As Figure 1 And Figure 2 The body 1 includes a circular flake-shaped body second section 1-2, a fan ring columnar root body first section 1-1 fixed to the upper surface of the body second section 1-2 and a cylindrical body third section 1-3 fixed to the lower surface of the body second section 1-2, the body first section 1-1, the body second section 1-2 and the body third section 1-3 are coaxially arranged, the outer diameter of the body second section 1-2 is greater than the outer diameter of the body third section 1-3, the inner wall and the outer wall of all the body first sections 1-1 are concentric, the outer diameter of the body second section 1-2 is greater than the outer diameter of the body first section 1-1, the inner wall of all the body first sections 1-1 forms a cylindrical body first cavity 1-4, a cylindrical body second cavity 1-5 and a body third cavity 1-6 are arranged inside the body second section 1-2 and the body third section 1-3, the body first cavity 1-4, the body second cavity 1-5 and the body third cavity 1-6 are arranged from large to small downward and penetrate through the body 1, the adjacent side walls of the adjacent two body first sections 1-1 are arranged in parallel, and the parallel grooves 1-7 are formed by the adjacent side walls of the adjacent two body first sections 1-1.

[0028] As Figure 3 The moving block 2 includes a moving block body 2-1, the left side and the right side of the moving block body 2-1 are arranged in parallel, the distance between the left side and the right side of the moving block body 2-1 matches the parallel grooves 1-7 arranged in the body 1, the moving block first contour matching the tooth-shaped surface arranged in the oil pump outer turning product 10 is arranged on the outer side of the moving block body 2-1, and the moving block first inclined cone section 2-2 and the moving block second inclined cone section 2-3 are arranged in the height direction of the inner side of the moving block body 2-1.

[0029] As Figure 4As shown, the pull rod 3 comprises, from top to bottom, coaxially connected in sequence, a pull rod first guide section 3-1, a pull rod first inclined cone base section 3-6, a pull rod first inclined cone section 3-2, a pull rod inclined cone connecting section 3-7, a pull rod second inclined cone base section 3-8, a pull rod second inclined cone section 3-3, a pull rod second guide section 3-4 and a pull rod thread section 3-5; the pull rod first guide section 3-1, the pull rod first inclined cone base section 3-6, the pull rod inclined cone connecting section 3-7, the pull rod second inclined cone base section 3-8 and the pull rod second guide section 3-4 are all cylindrical sections, the pull rod first inclined cone section 3-2 and the pull rod second inclined cone section 3-3 are both circular truncated cone sections with small end downward, the major end diameter of the pull rod first inclined cone section 3-2 is equal to that of the pull rod first inclined cone base section 3-6, the minor end diameter of the pull rod first inclined cone section 3-2 is equal to that of the pull rod inclined cone connecting section 3-7, the major end diameter of the pull rod second inclined cone section 3-3 is equal to that of the pull rod second inclined cone base section 3-8, and the minor end diameter of the pull rod second inclined cone section 3-3 is equal to that of the pull rod second guide section 3-4; the inclination of the pull rod first inclined cone section 3-2 is matched with that of the first inclined cone section 2-2 of the moving block 2, and the inclination of the pull rod second inclined cone section 3-3 is matched with that of the second inclined cone section 2-3 of the moving block 2;

[0030] As shown in Figure 5 and Figure 6 , the center of the top cover 4 is provided with coaxially connected top cover guide cavity 4-1 and first inclined cone movable cavity 4-2, the top cover guide cavity 4-1 and the first inclined cone movable cavity 4-2 are combined and pass through the top cover 4, and a top cover alignment section 4-4 corresponding to the parallel groove 1-7 in the body 1 is arranged below the top cover 4;

[0031] As shown in Figure 7 and Figure 8 , a spring installation hole 6-1 corresponding to the position of the parallel groove 1-7 in the body 1 is arranged in the outer sleeve ring 6;

[0032] As shown in Figure 9 and Figure 10As shown, the moving block 2 is installed between the two adjacent first sections 1-1 of the main body, and the pull rod 3 is installed in the first cavity 1-4, the second cavity 1-5 and the third cavity 1-6 of the main body. The outer ring 6 is sleeved on the outside of the first section 1-1 of the main body, and the outer ring 6 is fixed to the second section 1-2 of the main body. The compression spring 8 is installed in the spring mounting hole 6-1, and the outer end of the compression spring 8 is restricted and the inner end is a free end. The inner end of the compression spring 8 contacts the outer side surface of the moving block 2, and the top cover 4 is fixed on the top surface of the first section 1-1 of the main body. The top cover 4 is fixed, and the top cover alignment section 4-4, the top cover guide cavity 4-1 and the first oblique cone movable cavity 4-2 provided in the top cover 4 are respectively aligned with the parallel groove 1-7, the first guide section 3-1 and the first oblique cone section 3-2 of the pull rod provided in the pull rod 3.

[0033] It also includes a top cover locking screw 5, a top cover locking screw through hole 4-3 is opened on the top surface of the top cover 4, and a main body first threaded hole 1-8 is opened on the top surface of the first section 1-1 of the main body. The top cover locking screw 5 passes through the top cover locking screw through hole 4-3 and uses the main body first threaded hole 1-8 to combine and fix the first section 1-1 of the main body with the top cover 4.

[0034] It also includes an outer collar locking screw 7, an outer collar locking screw through hole 6-3 is opened on the outer collar 6, and a body second threaded hole 1-9 is opened on the second section 1-2 of the body corresponding to the outside of the first section 1-1 and the third section 1-3 of the body. The body second threaded hole 1-9 passes through the top surface and the bottom surface of the body second section 1-2. The outer collar locking screw 7 passes through the outer collar locking screw through hole 6-3 and is tightened to the body second threaded hole 1-9 to fix the outer collar 6 to the body second section 1-2.

[0035] It also includes a compression spring positioning screw 9. An internal thread 6-2 for spring fixing is provided in the outer ring 6 corresponding to the outer end of the spring placement hole 6-1. The compression spring positioning screw 9 is installed in the internal thread 6-2 for spring fixing. The outer end of the compression spring 8 is restricted by the compression spring positioning screw 9.

[0036] The assembly process of the utility model is as follows:

[0037] First, insert the outer ring 6 into the first section 1-1 of the main body, and then use the outer ring locking screw 7 to tighten it to the second threaded hole 1-9 of the main body set in the first section 1-1 of the main body through the outer ring locking screw through the hole 6-3. After the first section 1-1 of the main body is combined and fixed with the outer ring 6, put the same number of moving blocks 2 as the parallel grooves 1-7 into the two adjacent first sections 1-1 of the main body, and put the pull rod 3 into the first cavity 1-4 of the main body, the second cavity 1-5 of the main body and the third cavity 1-6 of the main body.

[0038] The compression spring 8 is put into the spring setting hole 6-1 in the sleeve ring 6, and the compression spring positioning screw 9 is screwed into the spring fixing internal thread 6-2 to avoid the compression spring 8 from falling out. After the top cover alignment section 4-4 in the top cover 4 is aligned with the parallel groove 1-7 and the first guide section 3-1 and the first inclined taper section 3-2 in the pull rod 3, the top cover alignment section 4-4 is embedded in the upper section of the parallel groove 1-7, the moving block 2 is in the lower section of the parallel groove 1-7, the top cover locking screw 5 is passed through the top cover locking screw through hole 4-3, and the body first section 1-1 is combined and fixed with the top cover 4 by the body first threaded hole 1-8 in the body first section 1-1, and the assembly process of the utility model is completed.

[0039] The first guide section 3-1 and the second guide section 3-4 in the pull rod 3 and the top cover guide cavity 4-1 in the top cover 4 and the body second cavity 1-5 in the body 1 are matched with a clearance controlled within a certain range, so that the axial position of the pull rod 3 during movement cannot run at will. The first inclined taper section 2-2 and the second inclined taper section 2-3 in the moving block 2 and the first inclined taper section 3-2 and the second inclined taper section 3-3 in the pull rod 3 are matched with double taper. Therefore, when the pull rod 3 pulls down to push the moving block 2 to move outward, it can be more stable and avoid uneven force on the moving block 2, so that the moving block 2 is inclined and the oil pump outer rotating product 10 is clamped unstably.

[0040] When the oil pump outer rotating product 10 is processed, the pull rod 3 is ejected. The compression spring 8 can return the moving block 2 to the initial state, so that the oil pump outer rotating product 10 can be taken out.

[0041] The utility model is used for processing the oil pump outer rotating product 10. The jig and the oil pump outer rotating product 10 adopt surface contact, and the clamping area is increased, so that the oil pump outer rotating product 10 can be clamped more stably and effectively, and the processing precision of the oil pump outer rotating product can be controlled more stably during processing.

[0042] Finally, it should be pointed out that the above specific embodiments are only used to illustrate the technical scheme of the utility model and are not limited. Although the utility model is described in detail with reference to examples, those skilled in the art should understand that the technical scheme of the utility model can be modified or replaced equivalently without departing from the spirit and scope of the utility model technical scheme, and all should be covered in the claim range of the utility model.

Claims

1. An oil pump outer turning fixture characterized by: It includes a body (1), a moving block (2), a pull rod (3), a top cover (4), an outer sleeve ring (6) and a compression spring (8); The body (1) includes a circular plate-shaped body second section (1-2), a plurality of fan ring columnar root body first sections (1-1) fixed to the upper surface of the body second section (1-2), and a cylindrical body third section (1-3) fixed to the lower surface of the body second section (1-2), the body first sections (1-1), the body second section (1-2) and the body third section (1-3) are coaxially arranged, the outer diameter of the body second section (1-2) is greater than the outer diameter of the body third section (1-3), the inner wall and the outer wall of all the body first sections (1-1) are concentric, the outer diameter of the body second section (1-2) is greater than the outer diameter of the body first section (1-1), the inner wall of all the body first sections (1-1) forms a cylindrical body first cavity (1-4), a cylindrical body second cavity (1-5) and a body third cavity (1-6) are arranged inside the body second section (1-2) and the body third section (1-3), the body first cavity (1-4), the body second cavity (1-5) and the body third cavity (1-6) are arranged from large to small and downwardly penetrating the body (1), the adjacent side walls of the adjacent two body first sections (1-1) are arranged in parallel, and the parallel grooves (1-7) are formed by the adjacent side walls of the adjacent two body first sections (1-1); The moving block (2) includes a moving block body (2-1), the left side and the right side of the moving block body (2-1) are arranged in parallel, the distance between the left side and the right side of the moving block body (2-1) matches the parallel grooves (1-7) arranged in the body (1), the moving block first contour matching the tooth profile arranged in the outer rotating pump is arranged on the outer side of the moving block body (2-1), and the moving block first inclined cone section (2-2) and the moving block second inclined cone section (2-3) are arranged on the inner side of the moving block body (2-1) and are arranged in intervals in the height direction. The pull rod (3) comprises a pull rod first guide section (3-1), a pull rod first inclined cone base section (3-6), a pull rod first inclined cone section (3-2), a pull rod inclined cone connecting section (3-7), a pull rod second inclined cone base section (3-8), a pull rod second inclined cone section (3-3), a pull rod second guide section (3-4) and a pull rod thread section (3-5) connected coaxially in sequence from top to bottom; the pull rod first guide section (3-1), the pull rod first inclined cone base section (3-6), the pull rod inclined cone connecting section (3-7), the pull rod second inclined cone base section (3-8) and the pull rod second guide section (3-4) are all cylindrical sections, the pull rod first inclined cone section (3-2) and the pull rod second inclined cone section (3-3) are both circular truncated cone sections with small head ends downward, the pull rod first inclined cone base section (3-6) has the same diameter as the big head end of the pull rod first inclined cone section (3-2), the pull rod inclined cone connecting section (3-7) has the same diameter as the small head end of the pull rod first inclined cone section (3-2), the pull rod second inclined cone base section (3-8) has the same diameter as the big head end of the pull rod second inclined cone section (3-3), and the pull rod second guide section (3-4) has the same diameter as the small head end of the pull rod second inclined cone section (3-3); the inclination of the pull rod first inclined cone section (3-2) matches the inclination of the first inclined cone section (2-2) of the moving block (2), and the inclination of the pull rod second inclined cone section (3-3) matches the inclination of the second inclined cone section (2-3) of the moving block (2); The center of the top cover (4) is provided with a top cover guide cavity (4-1) and a first inclined cone movable cavity (4-2) connected coaxially, the top cover guide cavity (4-1) and the first inclined cone movable cavity (4-2) are combined and pass through the top cover (4), and a top cover alignment section (4-4) corresponding to the parallel groove (1-7) in the body (1) is arranged below the top cover (4); The outer sleeve ring (6) is provided with a spring installation hole (6-1) corresponding to the position of the parallel groove (1-7) in the body (1); The moving block (2) is installed between two adjacent first body segments (1-1), the pull rod (3) is installed in the first body cavity (1-4), the second body cavity (1-5) and the third body cavity (1-6), the sleeve ring (6) is sleeved on the outside of the first body segment (1-1), the sleeve ring (6) is fixed with the second body segment (1-2), the compression spring (8) is installed in the spring installation hole (6-1), the outer end of the compression spring (8) is limited, and the inner end is a free end, the inner end of the compression spring (8) is in contact with the outer side of the moving block (2), the top cover (4) is fixed on the top surface of the first body segment (1-1), the top cover alignment segment (4-4), the top cover guide cavity (4-1) and the first inclined cone movable cavity (4-2) in the top cover (4) are respectively aligned with the parallel groove (1-7) and the first guide segment (3-1) and the first inclined cone segment (3-2) in the pull rod (3).

2. The oil pump external machining jig according to claim 1, characterized by: The top cover locking screw (5) is further included, the top cover locking screw passing hole (4-3) is formed on the top surface of the top cover (4), the first body threaded hole (1-8) is formed on the top surface of the first body segment (1-1), the first body segment (1-1) and the top cover (4) are combined and fixed by the top cover locking screw (5) passing through the top cover locking screw passing hole (4-3) and using the first body threaded hole (1-8).

3. The oil pump external machining jig according to claim 1, characterized by: The sleeve ring locking screw (7) is further included, the sleeve ring locking screw passing hole (6-3) is formed on the sleeve ring (6), the second body threaded hole (1-9) is formed on the second body segment (1-2) corresponding to the outside of the first body segment (1-1) and the third body segment (1-3), the second body threaded hole (1-9) penetrates the top surface and the bottom surface of the second body segment (1-2), the sleeve ring (6) and the second body segment (1-2) are combined and fixed by the sleeve ring locking screw (7) passing through the sleeve ring locking screw passing hole (6-3) and being screwed in the second body threaded hole (1-9).

4. The oil pump external machining jig according to claim 1, characterized by: The compression spring positioning screw (9) is further included, the spring fixing internal thread (6-2) is arranged in the sleeve ring (6) corresponding to the outer end of the spring installation hole (6-1), the compression spring positioning screw (9) is installed in the spring fixing internal thread (6-2), and the outer end of the compression spring (8) is limited by the compression spring positioning screw (9).

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