Flywheel casing bottom end face and inner side wall machining tool

Abstract

The utility model provides a machining tool for the bottom end face and the inner side wall of a flywheel shell. The machining tool is characterized in that a center pressing supporting module is arranged in the center of a working plate through bolt connection; the exhaust hole positioning modules are connected to the left side and the right side of the center pressing and supporting module through bolts. The edge supporting module is connected to the periphery of the center pressing supporting module through bolts, air outlet holes in the left side and the right side of a flywheel shell are arranged on the top of a first jacking column in a sleeving mode, a crankshaft center hole in the center of the flywheel shell is arranged on the top of a crankshaft center hole positioning column in a sleeving mode, and the flywheel shell is pressed downwards to enable the top end face of the flywheel shell to abut against the top end face of a sleeve. Meanwhile, the periphery of the end face of the top of the flywheel shell abuts against the second ejection column, the first ejection column and the second ejection column are pressed downwards, the top of the threaded boss is sleeved with the cross-shaped clamping jaw, the pressing sleeve is rotated to enable the cross-shaped rubber block at the bottom of the cross-shaped clamping jaw to abut against the inner wall of the bottom of the flywheel shell, the flywheel shell is clamped and limited, the flywheel shell is supported and clamped, and the surface of the flywheel shell is protected.

Description

Technical Field

[0001] The utility model relates to the field of milling machine finishing, in particular to the technical field of flywheel housing fixtures, and specifically to a flywheel housing bottom end surface and inner side wall processing fixture. Background Art

[0002] During the processing of the flywheel housing, after being formed by sand casting, the overall surface is relatively rough. Milling is required to remove the reserved margin of the casting so that the flywheel housing can reach the required accuracy. However, when the bottom and inner wall of the flywheel housing need to be milled, the top shape of the flywheel housing is relatively complex and cannot be directly milled due to its tilted shape when laid flat. When clamped with conventional clamps and flat-nose pliers, the side wall of one side of the flywheel housing is irregularly arc-shaped and cannot be clamped. During processing, the downward force of the milling cutter will cause the workpiece to move, affecting the processing accuracy and causing the workpiece to be scrapped. Summary of the invention

[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a flywheel housing bottom end surface and inner wall processing tooling to solve the difficulties of the prior art.

[0004] In order to achieve the above-mentioned purpose and other related purposes, the utility model provides a flywheel housing bottom end surface and inner side wall processing tooling, including:

[0005] A working plate 1, wherein a central pressing support module 2 is provided in the middle of the working plate 1 through bolt connection;

[0006] The exhaust hole positioning module 3 is arranged on the left and right sides of the central pressing support module 2 through bolt connection;

[0007] The edge support module 4 is arranged around the central pressing support module 2 by bolt connection.

[0008] According to a preferred embodiment, the central pressing support module 2 includes:

[0009] A sleeve 21, wherein the sleeve 21 is arranged in the middle of the top of the working plate 1 by bolt connection, and a clearance hole 22 is opened in the middle of the sleeve 21;

[0010] The crankshaft center hole positioning column 23 is penetrated in the middle of the clearance hole 22, the bottom of the crankshaft center hole positioning column 23 is connected to the working plate 1 by bolts, and a threaded boss 24 is arranged in the middle of the top of the crankshaft center hole positioning column 23;

[0011] A pressing sleeve 25, which is sleeved on the center of the top of the threaded boss 24 through a threaded connection, and a cross-shaped claw 26 is sleeved on the outer side around the bottom of the pressing sleeve 25;

[0012] The cross-shaped rubber block 27 is clamped at the bottom of the cross-shaped claw 26, and the cross-shaped rubber block 27 is connected to the cross-shaped claw 26 by bolts.

[0013] According to a preferred embodiment, the outer diameter of the crankshaft center hole positioning column 23 is smaller than the diameter of the clearance hole 22 , and the height of the crankshaft center hole positioning column 23 is greater than the height of the sleeve 21 .

[0014] According to a preferred embodiment, the pressing sleeve 25 and the cross-shaped claw 26 are integrally arranged.

[0015] According to a preferred embodiment, the exhaust hole positioning module 3 includes:

[0016] The heightening block 31 is connected by bolts and is arranged on the top of the working plate 1 and on the left and right sides of the sleeve 21;

[0017] A positioning hole 32, wherein the positioning hole 32 is provided in the middle of the height-increasing block 31, the top diameter of the positioning hole 32 is larger than the bottom diameter, and a spring 33 is provided at the bottom of the positioning hole 32;

[0018] The first top column 34 is clamped at the top of the positioning hole 32, the bottom of the first top column 34 is in contact with the first spring 33, and the top of the first top column 34 is rounded.

[0019] According to a preferred embodiment, the edge support module 4 comprises:

[0020] A square base 41, which is connected by bolts and is arranged on the top of the working plate 1 and around the sleeve 21;

[0021] A threaded hole 42, wherein the threaded hole 42 is provided in the middle of the top of the square base 41;

[0022] An external hexagonal screw 43, wherein the external hexagonal screw 43 is disposed on the top of the square base 41, and the bottom of the external hexagonal screw 43 is clamped in the threaded hole 42;

[0023] The ejection slot 44 is provided at the center of the top of the external hexagonal screw 43 , a No. 2 spring 45 is placed at the bottom of the ejection slot 44 , and a No. 2 ejector column 46 is provided at the top of the ejection slot 44 .

[0024] According to a preferred embodiment, the top of the external hexagonal screw 43 is a boss, the middle is a hexagonal nut, and the bottom is a screw.

[0025] The utility model adopts a working plate, a center material pressing support module, an exhaust hole positioning module and an edge support module, and the exhaust holes on the left and right sides of the flywheel housing are sleeved on the top of a No. 1 top column, and the crankshaft center hole in the middle of the flywheel housing is sleeved on the top of the crankshaft center hole positioning column, and the flywheel housing is pressed down so that the top end face of the flywheel housing is against the top end face of the sleeve, and at the same time, the top end face of the flywheel housing is against the No. 2 top column, and the No. 1 top column and the No. 2 top column are pressed down, and a cross-shaped clamping claw is sleeved on the top of the threaded boss, and the pressing sleeve is rotated to make the cross-shaped rubber block at the bottom of the cross-shaped clamping claw press against the bottom inner wall of the flywheel housing, so that the flywheel housing is clamped and limited, the flywheel housing is supported and clamped, and the surface of the flywheel housing is protected.

[0026] The best embodiment of the present invention will be described in more detail below in conjunction with the accompanying drawings so that the features and advantages of the present invention can be easily understood. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The display is a three-dimensional structural schematic diagram of the utility model;

[0028] Figure 2 Shown is a three-dimensional structural schematic diagram of a clamping flywheel housing of the utility model;

[0029] Figure 3 It shows an enlarged schematic diagram of the three-dimensional structure of the crankshaft center hole positioning column in the utility model;

[0030] Figure 4 The display is an enlarged schematic diagram of the three-dimensional structure of the cross-shaped claw in the present invention;

[0031] Figure 5 Shown is an exploded view of the edge support module in the present invention;

[0032] Figure 6 Shown is an exploded view of the exhaust hole positioning module in the present utility model;

[0033] Figure 7 Shown is an enlarged schematic diagram of the three-dimensional structure of the flywheel housing in the utility model;

[0034] Description of symbols

[0035] 1. Work board;

[0036] 2. Center pressing material support module; 21. Sleeve; 22. Clearance hole; 23. Crankshaft center hole positioning column; 24. Threaded boss; 25. Press sleeve; 26. Cross-shaped claw; 27. Cross-shaped rubber block;

[0037] 3. Exhaust hole positioning module; 31. Heightening block; 32. Positioning hole; 33. No. 1 spring; 34. No. 1 top column;

[0038] 4. Edge support module; 41. Square base; 42. Threaded hole; 43. External hexagonal screw; 44. Ejector slot; 45. No. 2 spring; 46. No. 2 ejector column; DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the technical solution of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described in conjunction with the drawings of the specific embodiments of the utility model. The same figure marks in the drawings represent the same parts. It should be noted that the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the described embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] Compared with the embodiments shown in the drawings, feasible implementations within the scope of protection of the present invention may have fewer components, other components not shown in the drawings, different components, differently arranged components, or differently connected components, etc. In addition, two or more components in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as multiple separate components.

[0041] Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by persons with ordinary skills in the field to which the utility model belongs. The words "first", "second" and similar words used in the specification and claims of the utility model patent application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not necessarily indicate quantity restrictions. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0042] The utility model proposes a flywheel housing bottom end face and inner wall processing tooling, which is used in the flywheel housing milling machine finishing process. The utility model does not limit the specifications and types of the flywheel housing, but the working plate 1, the center pressing support module 2, the exhaust hole positioning module 3 and the edge support module 4 structure are particularly suitable for clamping flywheel housings with irregular shapes.

[0043] In general, the flywheel housing bottom end surface and inner wall processing tooling proposed in the present invention mainly includes: a working plate 1, a central pressing support module 2, an exhaust hole positioning module 3 and an edge support module 4. Figure 1 , which shows the arrangement relationship of the working plate 1, the central pressing support module 2, the exhaust hole positioning module 3 and the edge support module 4.

[0044] When the tooling for processing the bottom end face and inner wall of the flywheel housing proposed by the utility model is used, according to the specifications of the flywheel housing to be clamped, the crankshaft center hole positioning column 23 with the same outer diameter as the diameter of the crankshaft center hole in the middle of the flywheel housing is replaced, and then the cross-shaped claws 26 are removed by rotating the pressing sleeve 25, and the air outlet holes on the left and right sides of the flywheel housing are sleeved on the top of the No. 1 top column 34, and the crankshaft center hole in the middle of the flywheel housing is sleeved on the top of the crankshaft center hole positioning column 23, and the flywheel housing is pressed down so that the top end face of the flywheel housing is against the top end face of the sleeve 21, and at the same time, the top end face of the flywheel housing is against the No. 2 top column. 46, press down the No. 1 top column 34 and the No. 2 top column 46, put the cross-shaped claw 26 on the top of the threaded boss 24, rotate the pressing sleeve 25 to make the cross-shaped rubber block 27 at the bottom of the cross-shaped claw 26 press against the bottom inner wall of the flywheel housing, clamp the flywheel housing to limit the position, and the exhaust hole positioning module 3 and the crankshaft center hole positioning column 23 are positioned so that the clamping angle is the same each time. The bottoms of the No. 1 top column 34 and the No. 2 top column 46 are respectively in contact with the No. 1 spring 33 and the No. 2 spring 45 to play a buffering and vibration reduction role, improve the processing accuracy, and prevent scratches and pits on the surface of the flywheel housing.

[0045] The central material pressing support module 2 is arranged in the middle of the working plate 1 by bolt connection. The central material pressing support module 2 includes: a sleeve 21, a crankshaft center hole positioning column 23, a pressing sleeve 25, a cross-shaped claw 26 and a cross-shaped rubber block 27, wherein the sleeve 21 is arranged in the middle of the top of the working plate 1 by bolt connection, a clearance hole 22 is opened in the middle of the sleeve 21, a crankshaft center hole positioning column 23 is penetrated in the middle of the clearance hole 22, and the bottom of the crankshaft center hole positioning column 23 is connected to the working plate by bolts. 1, a threaded boss 24 is arranged in the middle of the top of the crankshaft center hole positioning column 23, a pressing sleeve 25 is arranged in the middle of the top of the threaded boss 24 through a threaded connection sleeve, a cross-shaped claw 26 is sleeved on the outer side around the bottom of the pressing sleeve 25, the pressing sleeve 25 and the cross-shaped claw 26 are arranged in one piece, a cross-shaped rubber block 27 is clamped at the bottom of the cross-shaped claw 26 to protect the surface of the flywheel housing and prevent scratches on the surface of the flywheel housing when clamping, and the cross-shaped rubber block 27 is connected to the cross-shaped claw 26 by bolts.

[0046] The above-mentioned exhaust hole positioning module 3 is arranged on the left and right sides of the central pressing support module 2 by bolt connection, and the exhaust hole positioning module 3 includes: an increasing block 31, a positioning hole 32 and a No. 1 top column 34, wherein the increasing block 31 is arranged on the top of the working plate 1 by bolt connection and is located on the left and right sides of the sleeve 21, and a positioning hole 32 is opened in the center of the increasing block 31. The top aperture of the positioning hole 32 is larger than the bottom aperture, and a No. 1 spring 33 is arranged at the bottom of the positioning hole 32. A No. 1 top column 34 is clamped at the top of the positioning hole 32, and the bottom of the No. 1 top column 34 contacts with the No. 1 spring 33, which plays a role of buffering and vibration reduction, protects the top rounded corner of the No. 1 top column 34 on the surface of the flywheel housing, and prevents scratches on the wall of the exhaust hole.

[0047] The above-mentioned edge support module 4 is arranged around the central pressing support module 2 by bolt connection, and the exhaust hole positioning module 3 includes: a square base 41, a threaded hole 42, an external hexagonal screw 43 and an ejection slot 44, wherein the square base 41 is arranged around the top of the working plate 1 by bolt connection and located around the sleeve 21, a threaded hole 42 is opened in the middle of the top of the square base 41, and an external hexagonal screw 43 is arranged on the top of the square base 41. The top of the external hexagonal screw 43 is a boss, the middle is a hexagonal nut, and the bottom is a screw. The bottom of the external hexagonal screw 43 is clamped in the threaded hole 42, and an ejection slot 44 is opened in the middle of the top of the external hexagonal screw 43. A No. 2 spring 45 is placed at the bottom of the ejection slot 44, and a No. 2 ejector column 46 is clamped at the top of the ejection slot 44.

[0048] 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 flywheel housing bottom end surface and inner wall processing tool, characterized in that: include: A working plate (1), wherein a central material pressing support module (2) is provided in the middle of the working plate (1) via bolt connection; An exhaust hole positioning module (3), wherein the exhaust hole positioning module (3) is arranged on the left and right sides of the central material pressing support module (2) through bolt connection; An edge support module (4) is arranged around the central pressing support module (2) by bolt connection.

2. The flywheel housing bottom end surface and inner wall processing tooling according to claim 1, characterized in that: The central pressing support module (2) comprises: A sleeve (21), wherein the sleeve (21) is arranged at the center of the top of the working plate (1) by bolt connection, and a clearance hole (22) is opened at the center of the sleeve (21); A crankshaft center hole positioning column (23), wherein the crankshaft center hole positioning column (23) is inserted in the middle of the clearance hole (22), the bottom of the crankshaft center hole positioning column (23) is connected to the working plate (1) by bolts, and a threaded boss (24) is arranged in the middle of the top of the crankshaft center hole positioning column (23); A pressing sleeve (25), wherein the pressing sleeve (25) is sleeved on the center of the top of the threaded boss (24) through a threaded connection, and a cross-shaped clamping claw (26) is sleeved on the outer side of the bottom of the pressing sleeve (25); A cross-shaped rubber block (27) is clamped at the bottom of the cross-shaped clamping claw (26), and the cross-shaped rubber block (27) is connected to the cross-shaped clamping claw (26) through a bolt.

3. The flywheel housing bottom end surface and inner side wall processing tooling according to claim 2, characterized in that: The pressing sleeve (25) and the cross-shaped claw (26) are arranged in one piece.

4. The flywheel housing bottom end surface and inner wall processing tooling according to claim 3, characterized in that: The exhaust hole positioning module (3) comprises: A heightening block (31), the heightening block (31) is arranged on the top of the working plate (1) and located on the left and right sides of the sleeve (21) through bolt connection; A positioning hole (32), the positioning hole (32) is opened in the middle of the height-increasing block (31), the top hole diameter of the positioning hole (32) is larger than the bottom hole diameter, and a No. 1 spring (33) is arranged at the bottom of the positioning hole (32); A No. 1 top column (34), the No. 1 top column (34) is clamped on the top of the positioning hole (32), the bottom of the No. 1 top column (34) is in contact with the No. 1 spring (33), and the top of the No. 1 top column (34) is rounded.

5. The flywheel housing bottom end surface and inner wall processing tooling according to claim 4, characterized in that: The edge support module (4) comprises: A square base (41), the square base (41) is arranged on the top of the working plate (1) and around the sleeve (21) by bolt connection; A threaded hole (42), wherein the threaded hole (42) is provided in the middle of the top of the square base (41); An external hexagonal screw (43), wherein the external hexagonal screw (43) is arranged on the top of the square base (41), and the bottom of the external hexagonal screw (43) is clamped in the threaded hole (42); An ejection slot (44) is provided in the middle of the top of the external hexagonal screw (43), a No. 2 spring (45) is placed at the bottom of the ejection slot (44), and a No. 2 ejector column (46) is provided at the top of the ejection slot (44).

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