A washing machine motor end cover fixture

Abstract

The present invention provides a washing machine motor end cover clamp, which belongs to the field of clamp technology. It solves the problem of how to improve the positioning accuracy of a workpiece in the prior art. A washing machine motor end cover clamp comprises a mounting seat, wherein the mounting seat has a mounting hole, wherein the mounting hole is provided with a movable clamping member in a cylindrical shape and having an inner cavity, wherein the clamping member has a plurality of clamping parts arranged circumferentially, wherein the mounting seat has at least one obliquely arranged adjustment wall, wherein each clamping part has a connecting wall that is in contact with the adjustment wall, wherein the adjustment wall forms an angle with the connecting wall, wherein the connecting wall can move along the adjustment wall, and during the movement of the connecting wall, a plurality of clamping parts can gradually shrink inward, and the adjustment wall can abut against the connecting wall. The washing machine motor end cover clamp enables a plurality of clamping parts to fine-tune the clamping of the workpiece, thereby improving the positioning accuracy of the workpiece.

Description

Technical Field

[0001] The invention belongs to the technical field of clamps, and in particular relates to a motor end cover clamp for a washing machine. Background Art

[0002] In existing mechanical processing, a clamp installed on a lathe is usually required to clamp and fix the workpiece before performing the corresponding cutting process. The existing ordinary clamp only plays a role in fixing the workpiece, but cannot control the clamping force, thereby affecting the positioning accuracy of the workpiece, resulting in low accuracy of the processed workpiece.

[0003] The existing washing machine motor end cover usually includes a circular shell, a connecting portion arranged at the lower end of the shell and a circular bearing chamber protruding from the upper end of the shell. The existing washing machine motor end cover is clamped and fixed during processing. Since the shell is circular, a clamp is provided with a circular mounting hole to match the shell, the shell is placed in the circular mounting hole, and then the connecting portion is abutted against the lower end surface of the clamp, and the connecting portion is pressed against the lower end surface of the clamp by a pressing plate, so that the washing machine motor end cover is fixed on the clamp, and then the clamp is installed on the machine tool, and then the workpiece is subjected to corresponding cutting processing. However, in order to make the washing machine motor end cover easy to be set on the clamp, the motor end cover is often loosely set in the clamp mounting hole, and the existing clamp usually cannot perform clamping and adjustment on the motor end cover, which results in that the positioning accuracy of the clamp on the washing machine motor end cover is not high, thereby affecting the processing accuracy of the workpiece. Summary of the invention

[0004] The purpose of the present invention is to solve the above problems in the prior art and to propose a clamp for the motor end cover of a clothing machine. The technical problem to be solved by the present invention is: how to improve the positioning accuracy of the workpiece.

[0005] In order to solve the above problems, the present invention adopts the following technical solutions:

[0006] A washing machine motor end cover clamp comprises a mounting seat, wherein the mounting seat has a mounting hole, wherein a movable clamping piece having a cylindrical shape and an inner cavity is arranged in the mounting hole, wherein the clamping piece has a plurality of clamping parts arranged circumferentially, wherein the mounting seat has at least one obliquely arranged adjustment wall, wherein each clamping part has a connecting wall which is in contact with the adjustment wall, wherein the adjustment wall forms an angle with the connecting wall, wherein the connecting wall can move along the adjustment wall, wherein during the movement of the connecting wall, the plurality of clamping parts can gradually shrink inwardly, and the adjustment wall can abut against the connecting wall.

[0007] The clamping piece is cylindrical and has an inner cavity. In the initial state, the inner cavity of the clamping piece can make the workpiece loosely set. The workpiece is placed in the inner cavity of the clamping piece, and the clamping piece is moved in the mounting hole so that the connecting wall on each clamping part moves along the oblique adjustment wall set in the mounting seat. During the movement of the oblique adjustment wall of the connecting wall, the oblique adjustment wall has an oblique force on the connecting wall, and the oblique force is transmitted to the clamping part, so that the angle between the adjustment wall and the connecting wall gradually becomes smaller, so that the plurality of circumferentially arranged clamping parts gradually shrink inward and clamp the workpiece. When the adjustment wall is in contact with the connecting wall, the plurality of circumferentially arranged clamping parts clamp the workpiece at an appropriate clamping degree. The plurality of clamping parts are circumferentially arranged, so that the clamping parts can clamp the workpiece circumferentially at the same time and clamp the workpiece, thereby The workpiece can be clamped stably. When the connecting wall moves on the obliquely arranged adjusting wall until the adjusting wall and the connecting wall are in abutment with each other, the portion of the clamping part that is in contact with the adjusting wall contracts inwardly, driving the clamping part to contract inwardly to clamp the workpiece. The connecting wall moves upward, causing the angle formed by the adjusting wall and the connecting wall to gradually decrease. During the process of decreasing the angle, the clamping part slowly contracts inwardly and slowly clamps the workpiece until the adjusting wall and the connecting wall are in abutment with each other, so that a plurality of circumferentially arranged clamping parts clamp the workpiece at an appropriate clamping degree, and a plurality of clamping parts can fine-tune the clamping of the workpiece, thereby improving the positioning accuracy of the workpiece. A plurality of clamping parts can slowly contract inwardly and clamp the workpiece, and can prevent the workpiece from being directly clamped inwardly and causing damage to the workpiece surface. The clamping part is made of a deformable hard material.

[0008] In the above-mentioned washing machine motor end cover clamp, the connecting wall is obliquely arranged, and the lower end of the connecting wall is in contact with the adjusting wall. The connecting wall and the adjusting wall are obliquely arranged, and the connecting wall moves on the adjusting wall. During the upward movement of the connecting wall, due to the oblique force and the inclination of the adjusting wall, the connecting wall moves upward, so that the angle formed by the adjusting wall and the connecting wall gradually becomes smaller, so that the clamping part is squeezed and contracted inwardly. During the process of the angle becoming smaller, the clamping part slowly contracts inwardly and slowly clamps the workpiece until the adjusting wall and the connecting wall are in contact, so that the clamping parts arranged circumferentially clamp the workpiece at an appropriate clamping degree, and the clamping of the workpiece by the clamping parts is fine-tuned, thereby improving the positioning accuracy of the workpiece.

[0009] In the above-mentioned washing machine motor end cover clamp, the mounting seat includes a connecting seat and a connecting block, the connecting block is fixedly connected to the lower end of the connecting seat, the adjusting wall includes a first adjusting wall and a second adjusting wall, the first adjusting wall is located at the lower end of the connecting seat, the second adjusting wall is located at the lower end of the connecting block, the connecting wall includes a first connecting wall and a second connecting wall, the first connecting wall and the first adjusting wall are connected to form an angle of one, and the second connecting wall and the second adjusting wall are connected to form an angle of two. The mounting seat is arranged to form a connecting seat and a connecting block, which is convenient for production and manufacturing, and is also convenient for processing the first adjusting wall and the second adjusting wall. The first connecting wall and the first adjusting wall are connected to form an angle of one, and the second connecting wall and the second adjusting wall are connected to form an angle of two. During the movement of the clamping member, the two positions of the clamping part and the mounting seat can be squeezed, so that the clamping part as a whole shrinks inward more evenly, and the clamping part can clamp the workpiece evenly. When the first connecting wall and the first adjusting wall, and the second connecting wall and the second adjusting wall are simultaneously abutted, the clamping part can clamp the entire workpiece at an appropriate clamping degree, thereby improving the positioning accuracy of the workpiece.

[0010] In the above-mentioned washing machine motor end cover clamp, the connection seat and the connection block are connected to form a step surface 1, the step surface 1 is connected to the first adjustment wall and the second adjustment wall, the clamping part has a step surface 2 that can abut against the step surface 1, and there is a distance between the step surface 1 and the step surface 2. The distance can be the movable distance of the clamping part and limit the position of the clamping part when it moves upward.

[0011] In the above-mentioned washing machine motor end cover clamp, the clamping part has a positioning protrusion protruding into the clamping part at the location of the second step surface. During the movement of the clamping part, the first connecting wall and the second connecting wall are squeezed by the corresponding first adjusting wall and the second adjusting wall, so that the clamping part contracts inwards, driving the positioning protrusion to clamp the upper end of the workpiece, so that the outer peripheral surface of the workpiece can cooperate with the clamping part, thereby improving the positioning accuracy of the workpiece.

[0012] In the above-mentioned washing machine motor end cover clamp, gaps are formed between adjacent clamping parts to prevent interference between the clamping parts during their inward contraction.

[0013] In the above-mentioned washing machine motor end cover clamp, the notch includes a notch 1 and a notch 2 connected to the notch 1, the notch 1 is located above the notch 2, and the width of the notch 1 is greater than the width of the notch 2. During the inward contraction of a plurality of clamping parts, the adjacent clamping parts can avoid interference, and the width of the notch 1 is greater than the width of the notch 2, so that the clamping parts can contract more smoothly.

[0014] In the above-mentioned washing machine motor end cover clamp, the mounting seat is provided with a driving member, the driving member is connected to the clamping member and can drive the clamping member to move upward. The driving member is used to drive the clamping member to move.

[0015] In the above-mentioned washing machine motor end cover clamp, the driving member is an oil cylinder or an air cylinder.

[0016] In the above-mentioned washing machine motor end cover clamp, the driving member has a driving shaft, the driving shaft penetrates into the mounting hole and is connected with a screw, the driving shaft is connected with a stopper located in the mounting hole, and the mounting hole is also provided with two positioning blocks that can limit the stopper on the clamping member, and the two positioning blocks are fixed to the inner wall of the mounting hole by screws. The clamping member is easy to connect and disassemble with the driving shaft.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The driving member drives the clamping member to move upward, and the first connecting wall on the clamping part moves on the first adjusting wall, and the second connecting wall on the clamping part moves on the second adjusting wall, so that the first connecting wall and the second connecting wall are both subjected to an oblique force, so that the plurality of clamping parts can gradually shrink inward to clamp the workpiece. In the process that the connecting wall moves on the obliquely arranged adjusting wall until the adjusting wall is in contact with the connecting wall, the portion of the clamping part that is in contact with the adjusting wall shrinks inward, driving the clamping part to shrink inward to clamp the workpiece. The connecting wall moves upward to gradually reduce the angle formed by the adjusting wall and the connecting wall. In the process of reducing the angle, the clamping part slowly shrinks inward and slowly clamps the workpiece until the adjusting wall is in contact with the connecting wall, so that the plurality of circumferentially arranged clamping parts clamp the workpiece at an appropriate clamping degree, thereby realizing fine-tuning the clamping of the workpiece by the plurality of clamping parts, thereby improving the positioning accuracy of the workpiece. The plurality of clamping parts can slowly shrink inward and clamp the workpiece, which can prevent the workpiece from being directly clamped inward and causing damage to the workpiece surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the washing machine motor end cover clamp of the present invention.

[0020] Figure 2 yes Figure 1 Enlarged view of part A.

[0021] Figure 3 It is a schematic diagram of the clamping structure.

[0022] In the figure, 1, mounting seat; 1a, adjusting wall; 1a1, first adjusting wall; 1a2, second adjusting wall; 1b, connecting seat; 1c, connecting block; 1c1, step surface one; 2, mounting hole; 3, clamping member; 3a, clamping part; 3a1, connecting wall; 3a11, first connecting wall; 3a12, second connecting wall; 3a2, step surface two; 3a3, positioning protrusion; 31, notch; 311, notch one; 312, notch two; 4, driving member; 4a, driving shaft; 5, stopper; 6, positioning block; 7, angle; 71, angle one; 72, angle two. DETAILED DESCRIPTION

[0023] The following are specific embodiments of the invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0024] See also Figure 1-Figure 3 The motor end cover clamp of the washing machine comprises a mounting seat 1, the mounting seat 1 comprises a connecting seat 1b and a connecting block 1c, the connecting block 1c is fixedly connected to the lower end of the connecting seat 1b by screws, the connecting block 1c and the connecting seat 1b are connected to form a mounting hole 2, the lower end of the connecting block 1c and the connecting seat 1b has a first adjusting wall 1a1 arranged obliquely, the lower end of the connecting block 1c has a second adjusting wall 1a2 arranged obliquely, a movable clamping member 3 in a cylindrical shape and having an inner cavity is arranged in the mounting hole 2, the clamping member 3 has a plurality of clamping portions 3a arranged circumferentially, each clamping portion 3a has a first connecting wall 3a11 arranged obliquely and a second connecting wall 3a12 arranged obliquely, the lower end of the first connecting wall 3a11 is top-connected with the first adjusting wall 1a1, and the first connecting wall 3a11 and the first adjusting wall 1a2 are connected to each other. 1a1 forms an angle 71, the lower end of the second connecting wall 3a12 is in contact with the second adjusting wall 1a2, and the second connecting wall 3a12 and the second adjusting wall 1a2 form an angle 2 72, the first connecting wall 3a11 can move along the first adjusting wall 1a1, and the second connecting wall 3a12 can move along the second adjusting wall 1a2. During the simultaneous movement of the first connecting wall 3a11 and the second connecting wall 3a12, the angle 1 71 and the angle 2 72 both gradually decrease at the same time. When the first adjusting wall 1a1 is in contact with the first connecting wall 3a11, and the second adjusting wall 1a2 is in contact with the second connecting wall 3a12, in this process, several clamping parts 3a can gradually shrink inward to clamp the workpiece, so that the workpiece can be clamped at a suitable tightness, thereby improving the positioning accuracy of the workpiece.

[0025] The mounting seat 1 is arranged in the form of a connecting seat 1b and a connecting block 1c, which is convenient for production and manufacturing, and is also convenient for processing the first adjustment wall 1a1 and the second adjustment wall 1a2. The first connecting wall 3a11 is abutted against the first adjustment wall 1a1, and the second connecting wall 3a12 is abutted against the second adjustment wall 1a2, which enables the clamping part 3a to be squeezed with the mounting seat 1 at two positions during the movement of the clamping member 3, so that the clamping part 3a shrinks inward as a whole more evenly, so that the clamping part 3a can clamp the workpiece evenly, thereby improving the positioning accuracy of the workpiece.

[0026] The connection seat 1b and the connection block 1c are connected to form a step surface 1c1, and the step surface 1c1 connects the first adjustment wall 1a1 and the second adjustment wall 1a2. The clamping part 3a has a step surface 2a2 that can abut against the step surface 1c1, and there is a gap between the step surface 1c1 and the step surface 2a2. The gap can be a movable distance for the clamping part 3a to move, and the position of the clamping part 3a is limited when it moves upward.

[0027] The clamping portion 3a has an inwardly protruding positioning protrusion 3a3 on the inner side of the step surface 3a2. During the movement of the clamping member 3, the first connecting wall 3a11 and the second connecting wall 3a12 are squeezed by the corresponding first adjustment wall 1a1 and the second adjustment wall 1a2, causing the clamping portion 3a to contract inward, driving the positioning protrusion 3a3 to clamp the upper end of the workpiece, so that the outer peripheral surface of the workpiece can cooperate with the clamping portion 3a, thereby improving the positioning accuracy of the workpiece.

[0028] Notches 31 are formed between adjacent clamping parts 3a, and the notches 31 include notches 1 311 and notches 2 312 connected to notches 1 311. Notches 1 311 is located above notches 2 312, and the width of notches 1 311 is greater than the width of notches 2 312. When a plurality of clamping parts 3a are retracted inwardly, the adjacent clamping parts 3a can avoid interference during the retraction process, and the width of notches 1 311 is greater than the width of notches 2 312, so that the clamping parts 3a can retract more smoothly.

[0029] A driving member 4 is provided on the mounting seat 1. The driving member 4 is connected to the clamping member 3 and can drive the clamping member 3 to move upward. The driving member 4 is an oil cylinder or an air cylinder. The driving member 4 is used to drive the clamping member 3 to move. The driving member 4 has a driving shaft 4a. The driving shaft 4a penetrates into the mounting hole 2 and is connected with a screw. A stopper 5 located in the mounting hole 2 is penetrated on the driving shaft 4a. Two positioning blocks 6 that can limit the stopper 5 on the clamping member 3 are also provided in the mounting hole 2. The two positioning blocks 6 are fixed to the inner wall of the mounting hole 2 by screws. The connection and disassembly of the clamping member 3 and the driving shaft 4a are simple and convenient.

[0030] The workpiece is placed in the inner cavity at the lower end of the clamping member 3, and the driving member 4 drives the clamping member 3 to move upward. The clamping member 3 moves in the mounting hole 2 so that the first connecting wall 3a11 on each clamping portion 3a moves along the first adjusting wall 1a1, and the second connecting wall 3a12 moves along the second adjusting wall 1a2. During the movement of the first connecting wall 3a11 and the second connecting wall 3a12, the first adjusting wall 1a1 exerts an oblique force on the first connecting wall 3a11 and the second adjusting wall 1a2 exerts an oblique force on the second connecting wall 3a12. During the simultaneous upward movement of the first connecting wall 3a11 and the second connecting wall 3a12, the angle 1 71 and the angle 2 72 gradually decrease until the first adjusting wall 1a1 is in contact with the first connecting wall 3a11 and the second adjusting wall 1a2 is in contact with the first connecting wall 3a11. The second connecting wall 3a12 is in abutment with each other. During this process, the first connecting wall 3a11 and the second connecting wall 3a12 move, and are subjected to the oblique forces at two positions of the corresponding first adjustment wall 1a1 and the second adjustment wall 1a2, so that the clamping portion 3a as a whole slowly shrinks inwards and slowly clamps the workpiece until the first adjustment wall 1a1 and the first connecting wall 3a11 are in abutment with each other, and the second adjustment wall 1a2 and the second connecting wall 3a12 are in abutment with each other, so that a plurality of circumferentially arranged clamping portions 3a can clamp the workpiece at an appropriate clamping degree, and the clamping portion 3a has a clamping fine-tuning function for clamping the workpiece, thereby improving the positioning accuracy of the workpiece, and a plurality of clamping portions 3a can slowly shrink inwards and clamp the workpiece, and can prevent the workpiece from being directly clamped inwards and causing damage to the workpiece surface.

[0031] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A washing machine motor end cover fixture, comprising a mounting seat (1), characterized in that: The mounting seat (1) has a mounting hole (2) therein, a movable clamping member (3) having a cylindrical shape and an inner cavity is provided in the mounting hole (2), the clamping member (3) has a plurality of clamping portions (3a) arranged in a circumferential direction, the mounting seat (1) has at least one obliquely arranged adjustment wall (1a), each clamping portion (3a) has a connecting wall (3a1) abutting against the adjustment wall (1a), the adjustment wall (1a) and the connecting wall (3a1) form an angle (7), the connecting wall (3a1) can move along the adjustment wall (1a), and during the movement of the connecting wall (3a1), the plurality of clamping portions (3a) can gradually shrink inwards, and the adjustment wall (1a) can be in contact with the connecting wall (3a1). The mounting seat (1) comprises a connecting seat (1b) and a connecting block (1c), wherein the connecting block (1c) is fixedly connected to the lower end of the connecting seat (1b), the adjusting wall (1a) comprises a first adjusting wall (1a1) and a second adjusting wall (1a2), wherein the first adjusting wall (1a1) is located at the lower end of the connecting seat (1b), and the second adjusting wall (1a2) is located at the lower end of the connecting block (1c), and the connecting wall (3a1) comprises a first connecting wall (3a11) and a second connecting wall (3a12), wherein the first connecting wall (3a11) and the first adjusting wall (1a1) are connected to form an angle 1 (71), and the second connecting wall (3a12) and the second adjusting wall (1a2) are connected to form an angle 2 (72).

2. The washing machine motor end cover fixture according to claim 1, characterized in that: The connecting wall (3a1) is arranged obliquely, and the lower end of the connecting wall (3a1) is in abutment with the adjusting wall (1a).

3. The washing machine motor end cover fixture according to claim 1, characterized in that: The connecting seat (1b) and the connecting block (1c) are connected to form a step surface one (1c1), and the step surface one (1c1) connects the first adjustment wall (1a1) and the second adjustment wall (1a2). The clamping portion (3a) has a step surface two (3a2) that can abut against the step surface one (1c1), and there is a distance between the step surface one (1c1) and the step surface two (3a2).

4. The washing machine motor end cover fixture according to claim 3, characterized in that: The clamping portion (3a) has a positioning protrusion (3a3) protruding inwardly on the inner side of the location of the second step surface (3a2).

5. The washing machine motor end cover fixture according to claim 1 or 2, characterized in that: Notches (31) are formed between adjacent clamping portions (3a).

6. The washing machine motor end cover fixture according to claim 5, characterized in that: The notch (31) comprises a notch 1 (311) and a notch 2 (312) connected to the notch 1 (311); the notch 1 (311) is located above the notch 2 (312); and the width of the notch 1 (311) is greater than the width of the notch 2 (312).

7. The washing machine motor end cover fixture according to claim 1 or 2, characterized in that: The mounting seat (1) is provided with a driving member (4), and the driving member (4) is connected to the clamping member (3) and is capable of driving the clamping member (3) to move upward.

8. The washing machine motor end cover fixture according to claim 7, characterized in that: The driving member (4) is an oil cylinder or a gas cylinder.

9. The washing machine motor end cover fixture according to claim 8, characterized in that: The driving member (4) has a driving shaft (4a), the driving shaft (4a) penetrates into the mounting hole (2) and is connected with a screw, the driving shaft (4a) is connected with a stopper (5) located in the mounting hole (2), and the mounting hole (2) is also provided with two positioning blocks (6) capable of limiting the stopper (5) on the clamping member (3), and the two positioning blocks (6) are fixed to the inner wall of the mounting hole (2) by screws.

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