Improved clamp for rear end cover of motor shell

Abstract

The utility model relates to the technical field of machining, and discloses an improved fixture for a rear end cover of a motor casing, which comprises a pair of clamping blocks which are symmetrically arranged front and back, the clamping block on the rear side is fixed on a supporting block, and the supporting block is fixed at the rear end of a clamping base; the clamping block on the front side is fixed to a movable base, and the movable base is connected to the clamping base in a sliding mode. And a driving mechanism for driving the movable seat to move is arranged on the clamping base. The rear end cover of the motor shell is clamped through the pair of clamping blocks, the clamping work of the rear end cover can be facilitated, meanwhile, the clamping point is far away from the machined spigot, the influence on the machined spigot is effectively reduced, and the qualified stability of a product is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of machining, in particular to an improved clamp for a rear end cover of a motor housing. Background Art

[0002] A rear end cover of a motor housing as shown in the instruction manual Figure 5 As shown, a stopper 901 is provided at the upper end thereof, and the stopper is processed by a machining center, a milling cutter, a fixture, etc. The existing rear end cover fixture of the motor housing is as shown in the attached manual. Figure 4 As shown, it includes two symmetrically arranged clamping blocks, and the four legs 902 of the rear end cover of the motor housing are respectively placed at the two ends of the clamping blocks and are respectively pressed by the oil cylinder. Since three points can define a plane, the rear end cover of the motor housing is over-constrained, causing a certain degree of deformation of the rear end cover of the motor housing. When the processing is completed and taken out, the deformation of the rear end cover of the motor housing is restored, so that the outer diameter size of the stopper is difficult to control, and the roundness of the stopper is poor. The outer diameter of the stopper is required to be 183.90~183.93, and the actual measured size is 183.77~183.96. Utility Model Content

[0003] The purpose of the utility model is to provide an improved clamp for the rear end cover of a motor casing, which can facilitate the clamping of the rear end cover by clamping the rear end cover of the motor casing through a pair of clamping blocks. At the same time, the clamping point is far away from the processed stop, thereby effectively reducing the impact on the processed stop, thereby increasing the qualified stability of the product.

[0004] The above technical objectives of the utility model are achieved through the following technical solutions:

[0005] An improved clamp for a rear end cover of a motor housing comprises a pair of clamping blocks symmetrically arranged front and rear, wherein the clamping block at the rear side is fixed on a supporting block, and the supporting block is fixed on the rear end of a clamping base;

[0006] The clamping block on the front side is fixed on the moving seat, and the moving seat is slidably connected to the clamping base; and a driving mechanism for driving the moving seat to move is arranged on the clamping base.

[0007] When processing the rear end cover of the motor casing, the clamping base is fixed on a movable workbench of the machining center, and then the rear end cover of the motor casing is placed on two clamping blocks. The moving seat is then driven to move by a driving mechanism, and the moving seat drives the clamping block on the rear side to approach the clamping block on the front side, thereby clamping the bottom of the rear end cover of the motor casing between the two clamping blocks, and then the stopper at the upper end of the rear end cover of the motor casing is processed; since the clamping part is far away from the processing part, the slight deformation of the clamping part has little effect on the processing part, so that the size of the processed stopper meets the processing requirements.

[0008] The utility model is further configured as follows: the clamping block is formed with a sinking groove with an inner opening, a pair of arc surfaces are formed on the side walls of the sinking groove, and the inner diameter of the arc surface is equal to the outer diameter of the rear end cover of the motor housing.

[0009] Through the above technical solution, the rear end cover of the motor housing is clamped so that the arc surface just fits on the lower end outer wall of the rear end cover of the motor housing, thereby effectively clamping the rear end cover of the motor housing.

[0010] The utility model is further configured as follows: the cross section of the clamping base is rectangular;

[0011] A "cross" groove is formed in the clamping base, and the movable seat includes an integrally formed rectangular block and a "cross" block; the lower side wall of the rectangular block is abutted against the upper surface of the clamping base; the "cross" block is inserted into the "cross" groove.

[0012] Through the above technical solution, through the cooperation of the "cross" block and the "cross" groove, the moving direction of the moving seat can be effectively guided so that it can only move forward and backward but not move in other directions.

[0013] The utility model is further configured as follows: the driving mechanism includes a screw, the rear end of the screw is screwed on the "cross" block, and the front end of the screw is rotatably connected to the front end of the clamping base through a bearing;

[0014] A U-shaped seat is fixed on the front protruding end of the screw rod passing through the bearing, a pin shaft is sleeved and fixed on the U-shaped seat, and a handle is sleeved on the pin shaft.

[0015] Through the above technical solution, the handle is held away from one end of the pin shaft and the handle is rotated. The handle drives the U-shaped seat to rotate through the pin shaft, the U-shaped seat drives the screw to rotate, the screw drives the moving seat to move, and the moving seat drives the front clamping block to move, thereby realizing the clamping or loosening of the rear end cover of the motor housing.

[0016] The utility model is further configured as follows: a plurality of ears are fixed on the side wall of the clamping base, and grooves are formed on the ears.

[0017] Through the above technical solution, screws can be sleeved in the slots, and the clamping base is fixed on the workbench of the machining center by screws and nuts.

[0018] The outstanding effects of the utility model are:

[0019] Compared with the prior art, the rear end cover of the motor housing is clamped by a pair of clamping blocks, which facilitates the clamping of the rear end cover. At the same time, the clamping point is far away from the processed stop, thereby effectively reducing the impact on the processed stop, thereby increasing the qualified stability of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1It is a structural schematic diagram of the utility model;

[0021] Figure 2 for Figure 1 About the cross-sectional view of AA;

[0022] Figure 3 for Figure 1 About the cross-sectional view of BB;

[0023] Figure 4 It is a structural schematic diagram of a motor housing rear end cover fixture of the prior art;

[0024] Figure 5 It is a schematic diagram of the structure of the rear end cover of the motor housing.

[0025] Reference numerals: 10, clamping block; 101, sink; 102, arc surface;

[0026] 20. Support block;

[0027] 30. Clamping base; 31. Moving seat; 32. Support ears; 321. Slot;

[0028] 301, "cross" groove;

[0029] 311, rectangular block; 312, "cross" block;

[0030] 40. driving mechanism; 401. screw; 402. bearing; 403. U-shaped seat; 404. pin; 405. handle;

[0031] 90. rear end cover of motor housing; 901. stopper; 902. support foot. DETAILED DESCRIPTION

[0032] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0033] The following references Figures 1 to 3 The utility model is described as follows:

[0034] An improved clamp for a rear end cover of a motor housing comprises a pair of clamping blocks 10 symmetrically arranged front and rear, wherein the rear clamping block 10 is fixed on a supporting block 20, and the supporting block 20 is fixed on the rear end of a clamping base 30;

[0035] The front clamping block 10 is fixed on the moving seat 31 , and the moving seat 31 is slidably connected to the clamping base 30 ; the clamping base 30 is provided with a driving mechanism 40 for driving the moving seat 31 to move.

[0036] When processing the rear end cover of the motor casing, the clamping base is fixed on a movable workbench of the machining center, and then the rear end cover 90 of the motor casing is placed on two clamping blocks, and then the moving seat is driven to move by the driving mechanism, and the moving seat drives the clamping block on the rear side to approach the clamping block on the front side, so that the bottom of the rear end cover of the motor casing is clamped between the two clamping blocks, and then the stopper at the upper end of the rear end cover of the motor casing is processed; since the clamping part is far away from the processing part, the slight deformation of the clamping part has basically no effect on the processing part, so that the size of the processed stopper meets the processing requirements.

[0037] The clamping block 10 is formed with a recessed groove 101 with an inner opening, and a pair of arc surfaces 102 are formed on the side walls of the recessed groove 101. The inner diameter of the arc surface 102 is equal to the outer diameter of the rear end cover of the motor housing.

[0038] The rear end cover of the motor housing is clamped so that the arc surface just fits on the lower end outer wall of the rear end cover of the motor housing, thereby effectively clamping the rear end cover of the motor housing.

[0039] The cross section of the clamping base 30 is rectangular;

[0040] A cross groove 301 is formed in the clamping base 30, and the movable base 31 includes an integrally formed rectangular block 311 and a cross block 312; the lower side wall of the rectangular block 311 is abutted against the upper surface of the clamping base 30; and the cross block 312 is inserted into the cross groove 301.

[0041] Through the cooperation of the "cross" block and the "cross" groove, the moving direction of the moving seat can be effectively guided so that it can only move forward and backward but cannot move in other directions.

[0042] The driving mechanism 40 includes a screw rod 401, the rear end of the screw rod 401 is screwed to the "cross" block 312, and the front end of the screw rod 401 is rotatably connected to the front end of the clamping base 30 through a bearing 402;

[0043] The screw rod 401 passes through the front protruding end of the bearing 402 and is fixed with a U-shaped seat 403 , a pin shaft 404 is sleeved and fixed on the U-shaped seat 403 , and a handle 405 is sleeved on the pin shaft 404 .

[0044] Hold the handle away from one end of the pin shaft and rotate the handle, the handle drives the U-shaped seat to rotate through the pin shaft, the U-shaped seat drives the screw to rotate, the screw drives the moving seat to move, and the moving seat drives the front clamping block to move, thereby realizing the clamping or loosening of the rear end cover of the motor housing.

[0045] A plurality of ears 32 are fixed on the side wall of the clamping base 30 , and a slot 321 is formed on the ears 32 .

[0046] Through the above technical solution, screws can be sleeved in the slots, and the clamping base is fixed on the workbench of the machining center by screws and nuts.

[0047] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications of the above assumptions should also be regarded as the protection scope of the present invention.

Claims

1. An improved clamp for a rear end cover of a motor housing, comprising a pair of clamping blocks (10) symmetrically arranged front and rear, characterized in that: The rear clamping block (10) is fixed on the supporting block (20), and the supporting block (20) is fixed on the rear end of the clamping base (30); The front clamping block (10) is fixed on a movable seat (31), and the movable seat (31) is slidably connected to a clamping base (30); a driving mechanism (40) for driving the movable seat (31) to move is provided on the clamping base (30).

2. The improved fixture for the rear end cover of a motor housing according to claim 1, characterized in that: The clamping block (10) is formed with a recessed groove (101) with an inner opening, and a pair of arc surfaces (102) are formed on the side walls of the recessed groove (101), wherein the inner diameter of the arc surfaces (102) is equal to the outer diameter of the rear end cover of the motor housing.

3. The improved fixture for the rear end cover of a motor housing according to claim 1, characterized in that: The cross section of the clamping base (30) is rectangular; A cross groove (301) is formed in the clamping base (30), and the movable base (31) comprises an integrally formed rectangular block (311) and a cross block (312); the lower side wall of the rectangular block (311) is abutted against the upper surface of the clamping base (30); and the cross block (312) is inserted into the cross groove (301).

4. The improved fixture for the rear end cover of a motor housing according to claim 3, characterized in that: The driving mechanism (40) comprises a screw rod (401), the rear end of the screw rod (401) being screwed onto a "cross" block (312), and the front end of the screw rod (401) being rotatably connected to the front end of the clamping base (30) via a bearing (402); A U-shaped seat (403) is fixed to the front protruding end of the screw rod (401) passing through the bearing (402), a pin shaft (404) is sleeved and fixed on the U-shaped seat (403), and a handle (405) is sleeved on the pin shaft (404).

5. The improved fixture for the rear end cover of a motor housing according to claim 1, characterized in that: A plurality of supporting ears (32) are fixed on the side wall of the clamping base (30), and a slot (321) is formed on the supporting ears (32).

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