Clamp for milling upper plane of lower section of machine shell

Abstract

The utility model belongs to the technical field of clamps, and particularly relates to a clamp for milling an upper plane of a lower section of a shell. More than two cushion blocks are arranged on the clamp body at intervals in the left-right direction, a limiting block abutting against the rear side face of the lower section of the machine shell is arranged at the rear end of the clamp body, and a first limiting strip abutting against the corresponding end face of the lower section of the machine shell is arranged at the left end or the right end of the clamp body. The right end or the left end of the clamp body is provided with a second limiting strip which is driven by a first driver and abuts against the corresponding end face of the lower section of the machine shell. The left end and the right end of the clamp body are further provided with a first clamping cylinder clamped on the hole wall of a main shaft hole of the lower section of the machine shell and a second clamping cylinder clamped on the lower table top of the right end of the lower section of the machine shell respectively. The utility model has the advantages of quick placement, accurate positioning, convenient processing and the like.

Description

Technical field:

[0001] The utility model belongs to the technical field of clamps, in particular to a clamp for milling a plane on the lower section of a casing. Background technology:

[0002] The lower section of the sewing machine case needs to be clamped when milling the upper plane. At present, the clamping method of the lower section of the case is to place the lower section of the case on the work platform and press it in the empty space of the lower section of the case. This clamping method has a certain interference with the feed of the milling cutter, resulting in the inability to complete the work of milling the upper plane of the lower section of the case in one go. Multiple clamping is required, and the upper plane of the lower section of the case is processed in sections through two clampings, which ultimately leads to low processing accuracy, complex procedures, and low processing efficiency. Summary of the invention:

[0003] The utility model aims to provide a clamp for milling a plane on the lower section of a casing, which can complete the process of milling a plane on the lower section of the casing by one clamping.

[0004] The utility model is achieved in this way:

[0005] A clamp for milling a flat surface on a lower section of a casing, comprising a clamp body, on which more than two pads are arranged at intervals along the left-right direction, a limit block is arranged at the rear end of the clamp body and abuts against the rear side surface of the lower section of the casing, a first limit bar is arranged at the left or right end of the clamp body and abuts against the corresponding end surface of the lower section of the casing, a second limit bar driven by a first driver and abuts against the corresponding end surface of the lower section of the casing is arranged at the right or left end of the clamp body, and a first clamping cylinder clamped on the wall of a spindle hole of the lower section of the casing and a second clamping cylinder clamped on the lower table surface of the right end of the lower section of the casing are respectively arranged at the left and right ends of the clamp body.

[0006] In the above-mentioned fixture for milling the upper plane of the lower section of the casing, the front end of the clamp body is provided with more than two push-limiting strips spaced apart along the left-right direction.

[0007] In the above-mentioned fixture for milling the upper plane of the lower section of the casing, the upper plane of the clamp body is a "Λ"-shaped surface, and more than two first platforms are arranged on the upper plane of the clamp body at intervals along the left and right directions, and the cushion block is arranged on the first platform.

[0008] In the above-mentioned fixture for milling the upper plane of the lower section of the casing, second platforms are respectively arranged at the left and right ends of the upper plane of the clamp body, and the first limit bar is arranged on the second platform through a limit bar mounting seat.

[0009] In the above-mentioned fixture for milling the upper plane of the lower section of the casing, a driver is arranged on the second platform via a driver mounting seat.

[0010] In the above-mentioned fixture for milling the upper plane of the lower section of the casing, two first limit bars are provided, which are respectively located on both sides of the first clamping cylinder.

[0011] In the above-mentioned fixture for milling the upper plane of the lower section of the casing, a through hole is provided on the second platform, and the cylinder bodies of the first clamping cylinder and the second clamping cylinder are respectively inserted into the through holes and fixed on the second platform through the clamping cylinder mounting base, and the lever pressure arm of the first clamping cylinder can be clamped on the wall of the main shaft hole of the lower section of the casing, and the lever pressure arm of the second clamping cylinder can be clamped on the lower table surface at the right end of the lower section of the casing.

[0012] In the above-mentioned fixture for milling the upper plane of the lower section of the casing, two third platforms are arranged at the rear end of the upper plane of the clamp body along the left and right directions, and the limit blocks are arranged on the third platforms.

[0013] In the above-mentioned fixture for milling the upper plane of the lower section of the casing, a fourth platform is arranged at the front end of the upper plane of the clamp body, and a push limit strip is arranged on the fourth platform.

[0014] In the above-mentioned fixture for milling the upper plane of the lower section of the casing, the first clamping cylinder and the second clamping cylinder are hydraulic clamping cylinders or pneumatic clamping cylinders.

[0015] The outstanding advantages of the utility model compared with the prior art are:

[0016] 1. The utility model has three positioning positions on the left and right sides and the rear side to achieve left and right direction and front and back direction positioning. The first clamping cylinder and the second clamping cylinder are combined to achieve up and down direction positioning. After clamping, the upper plane of the lower section of the casing can be clamped once to complete the process of milling the upper plane. It has the advantages of fast placement, precise positioning, and convenient processing. Description of the drawings:

[0017] Figure 1 It is a front perspective schematic diagram of the utility model;

[0018] Figure 2 It is a bottom three-dimensional schematic diagram of the utility model;

[0019] Figure 3 It is one of the schematic diagrams of the utility model for clamping the lower section of the housing;

[0020] Figure 4 This is the second schematic diagram of the utility model for clamping the lower section of the housing;

[0021] Figure 5 It is a schematic diagram of the lower section of the casing of the utility model.

[0022] In the figure: 1. clamping body; 2. cushion block; 3. lower section of casing; 4. limit block; 5. first limit bar; 6. second limit bar; 7. driver; 8. spindle hole; 9. first clamping cylinder; 10. lower table; 11. second clamping cylinder; 12. push limit bar; 13. first platform; 14. second platform; 15. limit bar mounting seat; 16. driver mounting seat; 17. cylinder body; 18. clamping cylinder mounting seat; 19. third platform; 20. fourth platform. Specific implementation method:

[0023] The present invention is further described below with reference to specific embodiments. Figure 1 —5:

[0024] The utility model provides a clamp for milling an upper plane of a lower section of a casing, and the casing is a casing of a sewing machine. The clamp for milling an upper plane of a lower section of a casing comprises a clamp body 1, on which two or more cushion blocks 2 are arranged at intervals along the left and right directions. When clamping, the bottom surface of the lower section 3 of the casing is arranged on the cushion block 2, so that there is a certain space between it and the upper plane of the clamp body 1. A limit block 4 is arranged at the rear end of the clamp body 1 to abut against the rear side surface of the lower section 3 of the casing, a first limit bar 5 is arranged at the left or right end of the clamp body 1 to abut against the corresponding end surface of the lower section 3 of the casing, and a second limit bar 6 is arranged at the right or left end of the clamp body 1 to abut against the corresponding end surface of the lower section 3 of the casing driven by a driver 7. Specifically, the driver 7 is an oil cylinder or an air cylinder. A first clamping cylinder 9 clamped on the wall of the main shaft hole 8 of the lower section 3 of the casing and a second clamping cylinder 11 clamped on the lower table 10 of the right end of the lower section 3 of the casing are also arranged at the left and right ends of the clamp body 1. Generally speaking, the first clamping cylinder 9 and the second clamping cylinder 11 are hydraulic clamping cylinders or pneumatic clamping cylinders.

[0025] It should be noted that the left, right, front and back directions defined in the present invention are for the purpose of clarity and are not exclusive limitations. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present invention.

[0026] The utility model realizes the left-right direction and the front-back direction positioning by positioning at three places, the left and right side faces and the rear side faces, and realizes the positioning in the up-down direction by combining the first clamping cylinder 9 and the second clamping cylinder 11. It can be seen from the above that the clamping of the lower section 3 of the casing by the utility model does not involve the upper plane of the lower section 3 of the casing. Therefore, the upper plane of the lower section 3 of the casing can be clamped once to complete the process of milling the upper plane, without repeated clamping, and with high precision. In the process of milling the upper plane, when the upper plane is a step surface, it is necessary to automatically lift the cutter by the milling cutter equipment, and the work of milling the upper plane of the lower section 3 of the casing can also be completed in one time.

[0027] Through the clamping of the utility model, the lower section 3 of the casing can be clamped once to realize the milling of the upper plane, which has the advantages of rapid placement, accurate positioning, convenient processing, etc.

[0028] Furthermore, in the present invention, at the front end of the clamp body 1, there are two or more push-limiting strips 12 spaced apart along the left-right direction.

[0029] The upper plane of the clamp body 1 of the utility model is a "Λ"-shaped surface, which is inclined from the middle toward the front and rear sides. This arrangement facilitates the discharge of waste chips generated during the milling process outside the clamp body 1. More than two first platforms 13 are arranged at intervals along the left and right directions on the upper plane of the clamp body 1, and a cushion block 2 is arranged on the first platform 13. In this embodiment, three cushion blocks 2 are arranged, and correspondingly three first platforms 13 are arranged. Second platforms 14 are respectively arranged at the left and right ends of the upper plane of the clamp body 1, and the first limit bar 5 is arranged on the second platform 14 through the limit bar mounting seat 15. The driver 7 is arranged on the second platform 14 through the driver mounting seat 16. Two first limit bars 5 are arranged, which are respectively located on both sides of the first clamping cylinder 9.

[0030] In addition, a through hole is provided on the second platform 14, and the cylinder bodies 17 of the first clamping cylinder 9 and the second clamping cylinder 11 are respectively inserted into the through holes and fixed on the second platform 14 through the clamping cylinder mounting base 18. The lever pressure arm of the first clamping cylinder 9 can be clamped on the wall of the main shaft hole 8 of the lower section 3 of the casing, and the lever pressure arm of the second clamping cylinder 11 can be clamped on the lower table surface 10 at the right end of the lower section 3 of the casing.

[0031] Similarly, the rear end of the upper plane of the clamp body 1 is provided with two third platforms 19 in the left and right directions, and the limit block 4 is provided on the third platform 19. The front end of the upper plane of the clamp body 1 is provided with a fourth platform 20, and the fourth platform 20 is provided with a push limit strip 12.

[0032] The above embodiment is only one of the preferred embodiments of the present utility model, and is not intended to limit the scope of implementation of the present utility model. Therefore, any equivalent changes made based on the shape, structure, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A fixture for milling the upper plane of the lower section of a casing, characterized in that: The invention comprises a clamp body (1), on which two or more cushion blocks (2) are arranged at intervals in the left-right direction, a limit block (4) is arranged at the rear end of the clamp body (1) and abuts against the rear side surface of the lower section (3) of the casing, a first limit strip (5) is arranged at the left end or the right end of the clamp body (1) and abuts against the corresponding end surface of the lower section (3) of the casing, a second limit strip (6) is arranged at the right end or the left end of the clamp body (1) and abuts against the corresponding end surface of the lower section (3) of the casing driven by a driver (7), and a first clamping cylinder (9) clamped on the wall of the main shaft hole (8) of the lower section (3) of the casing and a second clamping cylinder (11) clamped on the lower table (10) at the right end of the lower section (3) of the casing are also arranged at the left and right ends of the clamp body (1), respectively.

2. The fixture for milling the upper plane of the lower section of the casing according to claim 1, characterized in that: The front end of the clamp body (1) is provided with more than two push-limiting strips (12) spaced apart in the left-right direction.

3. The fixture for milling the upper plane of the lower section of the casing according to claim 2, characterized in that: The upper plane of the clamp body (1) is a "Λ"-shaped surface. More than two first platforms (13) are arranged at intervals along the left-right direction on the upper plane of the clamp body (1), and the cushion block (2) is arranged on the first platform (13).

4. The fixture for milling the upper plane of the lower section of the casing according to claim 3 is characterized in that: Second platforms (14) are respectively arranged at the left and right ends of the upper plane of the clamp body (1), and the first limiting strip (5) is arranged on the second platform (14) via a limiting strip mounting seat (15).

5. The fixture for milling the upper plane of the lower section of the casing according to claim 4, characterized in that: A driver (7) is arranged on the second platform (14) via a driver mounting seat (16).

6. The fixture for milling the upper plane of the lower section of the casing according to claim 4, characterized in that: Two first limiting strips (5) are provided, respectively located on both sides of the first clamping cylinder (9).

7. The fixture for milling the upper plane of the lower section of the casing according to claim 4, characterized in that: The second platform (14) is provided with a through hole, and the cylinder bodies (17) of the first clamping cylinder (9) and the second clamping cylinder (11) are respectively inserted into the through holes and fixed on the second platform (14) through the clamping cylinder mounting seat (18); the lever pressing arm of the first clamping cylinder (9) can be clamped on the wall of the main shaft hole (8) of the lower section (3) of the casing, and the lever pressing arm of the second clamping cylinder (11) can be clamped on the lower table surface (10) at the right end of the lower section (3) of the casing.

8. The fixture for milling the upper plane of the lower section of the casing according to claim 3 is characterized in that: Two third platforms (19) are arranged at the rear end of the upper plane of the clamp body (1) along the left and right directions, and the limit block (4) is arranged on the third platform (19).

9. The fixture for milling the upper plane of the lower section of the casing according to claim 3, characterized in that: A fourth platform (20) is arranged at the front end of the upper plane of the clamp body (1), and a push limit strip (12) is arranged on the fourth platform (20).

10. The fixture for milling the upper plane of the lower section of the casing according to claim 1, characterized in that: The first clamping cylinder (9) and the second clamping cylinder (11) are hydraulic clamping cylinders or pneumatic clamping cylinders.

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