CN215919736U

CN215919736U - Special clamp for main speed reducer shell

Info

Publication number: CN215919736U
Application number: CN202121576962.3U
Authority: CN
Inventors: 朱传玲; 赵永征; 岑军; 张安文
Original assignee: Hefei Jac Casting Co Ltd
Current assignee: Hefei Jac Casting Co Ltd
Priority date: 2021-07-12
Filing date: 2021-07-12
Publication date: 2022-03-01
Anticipated expiration: 2031-07-12

Abstract

The utility model discloses a special clamp for a main speed reducer shell, and relates to the technical field. The utility model comprises a bottom plate, a screw fixing seat, a positioning column and a V-shaped supporting block. The bottom plate is connected with a three-jaw chuck and a supporting block; the screw fixing seat is connected with the upper surface of the bottom plate; the upper surface of the screw fixing seat is connected with a screw and a pressing plate matched with the screw for use; the number of the positioning columns is two, and the positioning columns are respectively positioned on two sides of the screw fixing seat; the positioning column comprises a fixing column and a positioning pin; the upper end surface of the fixed column is provided with a threaded hole; the lower end of the positioning pin is in threaded connection with the threaded hole; the positioning pin is in threaded connection with a locking nut; the V-shaped supporting block and the supporting block are respectively positioned on two sides of the three-jaw chuck. The three-jaw chuck and the pressing plate are combined for use, so that the problem of inconvenience in clamping in the prior art is solved; through setting up reference column and V type supporting shoe, solved current main reducer casing easy atress uneven, produced deformation, influenced holistic machining precision's problem.

Description

Special clamp for main speed reducer shell

Technical Field

The utility model belongs to the technical field, and particularly relates to a special clamp for a main speed reducer shell.

Background

When traditional anchor clamps carry out the centre gripping location to main reducer casing, because main reducer casing shape is irregular, often need carry out the clamping through a plurality of clamp plates to main reducer casing's different positions fixed to, current anchor clamps are when only the clamping to main reducer casing, can't carry out altitude mixture control to the location strong point, wear and tear etc. appear in a certain strong point, thereby easily lead to main reducer casing local atress inhomogeneous, cause main reducer casing to produce deformation, and influence holistic machining precision.

Meanwhile, due to the adoption of the clamping mode of the plurality of pressing plates, the nuts need to be screwed manually and frequently during clamping and dismounting, so that the operation process is inconvenient and complicated.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a special clamp for a main speed reducer shell, which solves the problem of inconvenient clamping in the prior art by combining a three-jaw chuck and a pressing plate; through setting up reference column and V type supporting shoe, solved current main reducer casing easy atress uneven, produced deformation, influenced holistic machining precision's problem.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model relates to a special clamp for a main speed reducer shell, which comprises a bottom plate, a screw fixing seat, a positioning column and a V-shaped supporting block. The upper surface of the bottom plate is fixedly connected with a three-jaw chuck and a supporting block; the screw fixing seat is fixedly connected with the upper surface of the bottom plate; the upper surface of the screw fixing seat is connected with a screw and a pressing plate matched with the screw for use; the number of the positioning columns is two, and the positioning columns are respectively positioned on two sides of the screw fixing seat; the positioning column comprises a fixing column and a positioning pin; the upper end surface of the fixing column is provided with a threaded hole; the lower end of the positioning pin is in threaded connection with the threaded hole; the positioning pin is in threaded connection with a locking nut; the V-shaped supporting blocks and the supporting blocks are respectively positioned on two sides of the three-jaw chuck, and the V-shaped supporting blocks, the screw fixing seats and the supporting blocks are sequentially arranged and positioned in the same diameter direction of the three-jaw chuck.

Furthermore, the upper surface of the bottom plate is connected with a plurality of hanging rings.

Furthermore, the screw fixing seat is of an n-shaped frame structure; one end of the screw fixing seat is located on the inner side of the three-jaw chuck, and the other end of the screw fixing seat is located on the outer side of the three-jaw chuck.

Further, the upper end of the positioning pin is of a regular hexagonal prism structure.

Further, the V-shaped supporting block comprises a V-shaped block and a base; the lower surface of the V-shaped block is fixedly connected with a top block; the base is fixedly connected with the upper surface of the bottom plate; the upper surface of the base is provided with a rectangular hole matched with the V-shaped block; the side surface of the base is provided with an adjusting blind hole communicated with the lower end of the rectangular hole; the side surface of the base is fixedly connected with an end cover; the end cover is provided with a threaded through hole and is in threaded connection with a stud; one end of the stud extends into the adjusting blind hole and is fixedly connected with a circular truncated cone column, and the conical side surface of the circular truncated cone column is abutted against the lower surface of the top block; the other end of the stud is connected with a star-shaped handle.

Furthermore, a support hole is formed in the inner end face of the adjusting blind hole; the end face of the circular table column is fixedly connected with a supporting column matched with the supporting hole.

Furthermore, the lower surface of the top block is of a curved surface structure.

Furthermore, a straight notch which is vertically arranged is formed in the side surface of the V-shaped block; a threaded hole is formed in the side face of the base, and a screw is connected with the threaded hole in a threaded manner; the end part of the screw is fixedly connected with a limiting column in clearance fit with the straight notch.

The utility model has the following beneficial effects:

the three-jaw chuck and the pressing plate are combined for use, so that the using amount of the pressing plate is reduced, the convenience of clamping and dismounting is effectively improved, and the integral working efficiency is improved. And moreover, the positioning column is utilized to adjust the height, so that the positioning pin and the supporting block keep a good supporting effect on the main reducer shell, the phenomenon that the main reducer shell is deformed due to uneven stress is avoided, and the overall processing precision is effectively guaranteed.

Meanwhile, the circular table column on the stud is matched with the ejector block at the lower part of the V-shaped block, and the vertical position of the V-shaped block is adjusted through the axial movement of the stud, so that the supporting effect of the main speed reducer shell is further improved, and the supporting stability and the processing precision are ensured.

Of course, it is not necessary for any product in which the utility model is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a special clamp for a main reducer casing according to the present invention;

FIG. 2 is a front view of the structure of FIG. 1;

FIG. 3 is a schematic structural view of a screw fixing seat;

FIG. 4 is a half sectional view of the locating post;

FIG. 5 is a top view of the structure of the V-shaped support block;

FIG. 6 is a cross-sectional view taken at A-A of FIG. 5;

FIG. 7 is a cross-sectional view taken at B-B of FIG. 5;

in the drawings, the components represented by the respective reference numerals are listed below:

1-bottom plate, 2-three-jaw chuck, 3-screw fixing seat, 4-positioning column, 5-V-shaped supporting block, 6-end cover, 7-screw, 101-supporting block, 102-hanging ring, 301-screw, 302-pressing plate, 401-fixing column, 402-positioning pin, 403-locking nut, 501-V-shaped block, 502-base, 503-top block, 504-rectangular hole, 505-adjusting blind hole, 506-straight notch, 601-stud, 602-circular table column, 603-star handle, 604-supporting column and 701-limiting column.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.

Example one

Referring to fig. 1 and 2, the present invention is a special fixture for a main reducer housing, including a bottom plate 1, a screw fixing seat 3, a positioning column 4 and a V-shaped supporting block 5. The bottom plate 1 is of a rectangular plate structure, and a plurality of connecting holes are formed in the bottom plate 1 and are used for being connected with a workbench of processing equipment through bolts and the like. Meanwhile, the upper surface of the bottom plate 1 is connected with four lifting rings 102, the four lifting rings 102 are respectively located at four corners of the bottom plate 1, and the whole clamp is heavy and cannot be carried manually, so that the lifting rings 102 are arranged, and the clamp is convenient to carry through lifting.

The upper surface of the bottom plate 1 is fixedly connected with a three-jaw chuck 2 and a supporting block 101 through bolts; the upper end of the supporting block 101 supports the main reducer casing, and the main reducer casing can be clamped through the three-jaw chuck 2.

As shown in fig. 3, the screw fixing seat 3 is fixedly connected with the upper surface of the bottom plate 1 through a hexagon screw; wherein, the screw rod fixing seat 3 is of an n-shaped frame structure; 3 one end of screw rod fixing base is located the 2 inboards of three-jaw chuck, and the other end is located the 2 outsides of three-jaw chuck, and screw rod fixing base 3 spanes on three-jaw chuck 2 promptly, "pi" shape frame construction makes 3 fixed more reliable and more stable of screw rod fixing base. The upper surface of the screw fixing seat 3 is in threaded connection with a screw 301 and a pressing plate 302 matched with the screw 301.

As shown in fig. 4, the number of the positioning columns 4 is two, and the positioning columns are respectively located at two sides of the screw fixing seat 3; the positioning column 4 comprises a fixing column 401 and a positioning pin 402; the upper end surface of the fixing column 401 is provided with a threaded hole; locating pin 402 lower extreme and screw hole threaded connection for the height of locating pin 402 can be realized adjusting, makes locating pin 402 realize carrying out good support effect to the main reducer casing, and wherein, locating pin 402 upper end is regular hexagonal prism structure, and regular hexagonal prism structure is convenient for rotate locating pin 402 through spanner etc. improves the convenience to locating pin 402 altitude mixture control.

The positioning pin 402 is in threaded connection with a locking nut 403, the height of the positioning pin 402 is fixed through the locking nut 403, and the situation that the positioning pin 402 rotates accidentally to cause height change is avoided.

The V-shaped supporting block 5 and the supporting block 101 are respectively located on two sides of the three-jaw chuck 2, and the V-shaped supporting block 5, the screw fixing seat 3 and the supporting block 101 are sequentially arranged and located in the same diameter direction of the three-jaw chuck 2.

During clamping, the main speed reducer shell is positioned and supported through the supporting block 101, the two positioning columns 4 and the V-shaped supporting block 5. And then, the pressing plate 302 is clamped on the screw 301, and the pressing plate 302 is pressed down through the nut by screwing the nut connected with the screw 301, so that the pressing plate 302 realizes the pressing and fixing of the main speed reducer shell.

After the main reducer shell is fixed and stabilized by the pressing plate 302, the outer wall of the main reducer shell is locked and clamped by the three-jaw chuck 2, so that the main reducer shell is integrally clamped. Only one pressing plate 302 needs to be disassembled and assembled in the clamping process and the tightness of the three-jaw chuck 2 can be achieved, so that the convenience for clamping the main reducer shell is effectively improved.

Example two

As shown in fig. 5-7, the V-shaped support block 5 comprises a V-shaped block 501 and a base 502; the lower surface of the V-shaped block 501 is fixedly connected with a top block 503, and the top block 503 and the V-shaped block 501 are of an integrated structure.

The base 502 is fixedly connected with the upper surface of the bottom plate 1 through bolts. The upper surface of the base 502 is provided with a rectangular hole 504 matched with the V-shaped block 501; the side surface of the base 502 is provided with a blind adjusting hole 505 communicated with the lower end of the rectangular hole 504.

The base 502 side is through hex bolts fixedly connected with end cover 6, and wherein, regulation blind hole 505 is the shoulder hole, and end cover 6 cooperates with the ladder portion of adjusting blind hole 505 for the side of end cover 6 keeps flushing with the side of base 502, is favorable to reducing holistic volume, is favorable to improving the convenience of installation simultaneously, and fixed effect.

The end cover 6 is provided with a threaded through hole, and is in threaded connection with a stud 601, one end of the stud 601 extends into the adjusting blind hole 505 and is welded with a circular truncated cone 602, and the conical side surface of the circular truncated cone 602 abuts against the lower surface of the top block 503; the other end of the stud 601 is connected with a star handle 603. The stud 601 is rotated through the star-shaped handle 603, so that the axial movement of the stud 601 is realized, and the height adjustment of the V-shaped block 501 is realized through the pushing top block 503 of the circular truncated cone 602. Moreover, the lower surface of the top block 503 is a curved surface structure, which is beneficial to reducing the friction force between the top block 503 and the circular truncated cone column 602.

As shown in fig. 6, when the circular truncated cone column 602 moves to the left, the top block 503 is pushed by the circular truncated cone column 602, so that the V-shaped block 501 moves upward, and the height of the V-shaped block 501 increases. When the circular truncated cone column 602 moves to the right, the top block 503 loses the support of the circular truncated cone column 602, thereby allowing the V-shaped block 501 to fall, i.e., allowing the height of the V-shaped block 501 to decrease. Through the altitude mixture control to V type piece 501 to make V type piece 501 realize carrying out better supporting effect to the final drive casing, make the final drive casing receive supporting shoe 101, two reference column 4 and V type piece 501's holding power are more balanced, have avoided the easy atress inequality that appears of final drive casing, produce deformation, and the condition that influences the machining precision takes place.

Wherein, a support hole is arranged on the inner end surface of the adjusting blind hole 505; the end face of the circular truncated cone column 602 is fixedly connected with a supporting column 604 matched with the supporting hole, and the end of the circular truncated cone column 602 is supported, so that the overall stability and reliability are improved.

Meanwhile, a straight notch 506 which is vertically arranged is formed in the side surface of the V-shaped block 501; a threaded hole is formed in the side surface of the base 502, and a screw 7 is connected with the threaded hole in a threaded manner; the end of the screw 7 is welded with a limiting column 701 in clearance fit with the straight notch 506, and the limiting column 701 and the screw 7 are of an integrated structure. Through the cooperation of spacing post 701 and straight notch 506 for the reciprocating of V type piece 501 is more steady and smooth and easy, and avoids the condition that V type piece 501 slided off in by rectangular hole 504 to appear.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the utility model disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A special fixture for a main reducer case, comprising:

the device comprises a base plate (1), wherein a three-jaw chuck (2) and a supporting block (101) are fixedly connected to the upper surface of the base plate (1);

the screw fixing seat (3) is fixedly connected with the upper surface of the bottom plate (1); the upper surface of the screw fixing seat (3) is connected with a screw (301) and a pressing plate (302) matched with the screw (301);

the number of the positioning columns (4) is two, and the two positioning columns (4) are respectively positioned on two sides of the screw fixing seat (3); the positioning column (4) comprises a fixing column (401) and a positioning pin (402); a threaded hole is formed in the upper end face of the fixing column (401); the lower end of the positioning pin (402) is in threaded connection with the threaded hole; the positioning pin (402) is in threaded connection with a locking nut (403);

the V-shaped supporting blocks (5) and the supporting blocks (101) are located on two sides of the three-jaw chuck (2) respectively, and the V-shaped supporting blocks (5), the screw fixing seats (3) and the supporting blocks (101) are arranged in sequence and located in the same diameter direction of the three-jaw chuck (2).

2. The special fixture for the main reducer shell according to claim 1, characterized in that a plurality of hanging rings (102) are connected to the upper surface of the bottom plate (1).

3. The special clamp for the main reducer casing according to claim 1 or 2, characterized in that the screw fixing seat (3) is of a n-shaped frame structure; one end of the screw fixing seat (3) is located on the inner side of the three-jaw chuck (2), and the other end of the screw fixing seat is located on the outer side of the three-jaw chuck (2).

4. A special fixture for a final drive shell according to claim 1 or 2, characterized in that the upper end of the positioning pin (402) is in a regular hexagonal prism structure.

5. A special clamp for final drive housing according to claim 1 or 2, characterized in that the V-shaped support block (5) comprises a V-shaped block (501) and a base (502); the lower surface of the V-shaped block (501) is fixedly connected with a top block (503);

the base (502) is fixedly connected with the upper surface of the bottom plate (1); the upper surface of the base (502) is provided with a rectangular hole (504) matched with the V-shaped block (501); the side surface of the base (502) is provided with a blind adjusting hole (505) communicated with the lower end of the rectangular hole (504);

the side surface of the base (502) is fixedly connected with an end cover (6); the end cover (6) is provided with a threaded through hole and is in threaded connection with a stud (601); one end of the stud (601) extends into the adjusting blind hole (505) and is fixedly connected with a circular truncated cone column (602), and the conical side surface of the circular truncated cone column (602) is abutted against the lower surface of the top block (503); the other end of the stud (601) is connected with a star-shaped handle (603).

6. The special clamp for the main speed reducer shell according to claim 5, wherein a support hole is formed in an inner end surface of the blind adjusting hole (505); the end face of the circular table column (602) is fixedly connected with a supporting column (604) matched with the supporting hole.

7. The special fixture for the main reducer shell according to claim 5, characterized in that the lower surface of the top block (503) is a curved surface structure.

8. The special clamp for the main speed reducer shell according to claim 5, wherein a vertically arranged straight notch (506) is formed in the side surface of the V-shaped block (501); a threaded hole is formed in the side surface of the base (502), and a screw (7) is connected with the threaded hole in a threaded manner; the end part of the screw (7) is fixedly connected with a limiting column (701) in clearance fit with the straight notch (506).