Motor shell machining clamp

Abstract

The invention discloses a motor shell machining clamp which comprises a machining platform, a chip removal hole, a limiting vertical plate, a flexible clamp, a dustproof cover, a front clamping hydraulic cylinder mounting base, a front clamping hydraulic cylinder, a rear clamping hydraulic cylinder, a fixing base, a connecting rod, a front clamping arm, a clamping head, a rear clamping arm, a limiting hydraulic cylinder mounting base, a limiting hydraulic cylinder and a limiting block. Compared with the prior art, the motor shell is vertically arranged, the two sets of hydraulic cylinders adopting the lever principle and the foot stands clamping the motor shell from the front side and the upper side correspondingly are arranged, the limiting vertical plate is matched for clamping and fixing, meanwhile, the two hydraulic cylinders are arranged for directly clamping the clamping columns, the flexible clamp is arranged to be attached to the motor shell from the rear side, and deformation caused by cutting is overcome; and the motor shell is clamped at multiple points together, so that the situation that the yield is too low due to deformation in the machining process is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of motor housing processing, and specifically to a fixture for processing a motor housing. Background Art

[0002] A motor housing is a structure for protecting the internal parts and circuits of a motor. Among them, thin motor housings are difficult to fix during processing. When processed horizontally, the motor housing is prone to deformation due to the cutting force generated during processing. Moreover, conventional fixtures directly clamp the motor housing, which also easily causes deformation, thereby reducing the yield rate. Summary of the Invention

[0003] In view of the problems existing in the prior art, the present invention discloses a fixture for processing a motor housing, including a motor housing. The motor housing is a thin-walled housing, vertically placed, with footrests provided on the front sides of the left and right sides and a clamping post provided on the rear side; a processing platform, a chip removal hole, a limiting vertical plate, a flexible fixture, a dust cover, a front clamping hydraulic cylinder mounting seat, a front clamping hydraulic cylinder, a rear clamping hydraulic cylinder, a fixed seat, a connecting rod, a front clamping arm, a clamping head, a rear clamping arm, a limiting hydraulic cylinder mounting seat, a limiting hydraulic cylinder, and a limiting block; a chip removal hole is opened in the center of the processing platform, and a chip removal groove is provided on the front side of the chip removal hole. The motor housing is located directly above the chip removal hole; the limiting vertical plate is installed on the upper surface of the processing platform, on the left and right sides in front of the chip removal hole, and holds the footrests from the left and right sides and the rear; the flexible fixture is installed on the upper surface of the processing platform, in the center behind the chip removal hole, and its flexible part abuts against the motor housing; the dust cover is snap-fitted and installed on the top of the flexible fixture, above the flexible part; the front clamping hydraulic cylinder mounting seat is installed on the left and right sides of the upper surface of the processing platform, on the left and right sides of the limiting vertical plate; the front clamping hydraulic cylinder push rod is installed on the front clamping hydraulic cylinder mounting seat facing the limiting vertical plate; the rear clamping hydraulic cylinder is vertically installed on the upper surface of the processing platform, behind the limiting vertical plate; the fixed seat is installed on the front clamping hydraulic cylinder and the rear clamping hydraulic cylinder, beside the push rod; one end of the front clamping arm is connected to the end of the front clamping hydraulic cylinder push rod, and a clamping head is installed at the other end; one end of the rear clamping arm is connected to the end of the rear clamping hydraulic cylinder push rod; the connecting rods are in a group of two, one end is fixed to the fixed seat, and the other end is equipped with a connecting shaft that passes through the front clamping arm and the rear clamping arm respectively and is then connected together. The front clamping arm and the rear clamping arm can rotate around the connecting shaft; when the front clamping hydraulic cylinder push rod retracts, the clamping head presses on the footrest from the front side, and when the rear clamping hydraulic cylinder push rod retracts, the rear clamping arm presses on the footrest from above; the limiting hydraulic cylinder mounting seat is installed on the upper surface of the processing platform, behind the rear clamping hydraulic cylinder; the limiting hydraulic cylinder push rod is installed on the limiting hydraulic cylinder mounting seat facing the motor housing, and a limiting block is installed at the end of its push rod.

[0004] As a preferred technical solution of the present invention, a limit block mounting rod is installed on one side of the limit hydraulic cylinder mounting seat close to the motor housing. Long holes are opened at both ends of the limit block mounting rod, and springs are installed in the long holes; the cross-section of the limit block is a right trapezoid, and screws are installed on the springs during installation. It can rotate freely and achieve the function of floating elastic adjustment through the springs. After the motor housing is placed, it is adjusted and locked by the limit hydraulic cylinder, and clamped together with the housing base, so that it can adapt to different models of housing products.

[0005] As a preferred technical solution of the present invention, the front clamping arm is connected to the clamping head, and the other end is connected to the fixed seat through a connecting rod, and clamping and loosening are realized by the telescopic movement of the hydraulic cylinder.

[0006] As a preferred technical solution of the present invention, the clamping head is in a U shape and is clamped into the hole of the motor housing base to achieve fixation.

[0007] As a preferred technical solution of the present invention, when the motor housing is installed, the feet are clamped between the limit vertical plates, and the rear side of the limit vertical plate protrudes inward and is clamped on the feet.

[0008] As a preferred technical solution of the present invention, both the front clamping arm and the rear clamping arm are L-shaped. Two round holes are opened at the end of the long side. The round holes close to the end are respectively connected to the ends of the push rods of the front clamping hydraulic cylinder and the rear clamping hydraulic cylinder, and the connecting rod passes through the other round hole and is connected; the rear clamping arm is connected to the rear clamping hydraulic cylinder through a hinge; the rear clamping arm is connected to the rear clamping hydraulic cylinder through a hinge, and through the telescopic movement of the hydraulic cylinder, automatic control of vertical and horizontal placement is realized, and then rapid clamping is realized.

[0009] As a preferred technical solution of the present invention, two screw holes are opened on one side of the limit vertical plate, and locking screws are installed in the screw holes.

[0010] The beneficial effects of the present invention: The motor housing of the present invention is set vertically, and two sets of hydraulic cylinders using the lever principle are set to clamp the feet of the motor housing from the front side and the upper side respectively, and are clamped and fixed in cooperation with the limit vertical plates. At the same time, two hydraulic cylinders are set to directly clamp the clamping posts, and a flexible fixture is set to fit the motor housing from the rear side to overcome the deformation caused by cutting. The motor housing is clamped at multiple points to prevent deformation during processing and resulting in too low a yield rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. In all the drawings, the elements or parts are not necessarily drawn to actual scale.

[0012] Figure 1 Schematic three-dimensional view of the present invention Figure 1 ;

[0013] Figure 2 Schematic diagram of the present invention in three dimensions Figure 2 ;

[0014] Figure 3 Top view of the present invention;

[0015] Figure 4 Cross-sectional view of the structure of the limit hydraulic cylinder mounting seat of the present invention;

[0016] In the figure: motor housing 1, clamping post 2, footrest 3, machining platform 4, chip removal hole 5, limit vertical plate 6, locking screw 61, flexible fixture 7, dust cover 8, front clamping hydraulic cylinder mounting seat 9, front clamping hydraulic cylinder 10, rear clamping hydraulic cylinder 11, fixed seat 12, connecting rod 13, front clamping arm 14, clamping head 15, rear clamping arm 16, limit hydraulic cylinder mounting seat 17, limit block mounting rod 171, long hole 172, limit hydraulic cylinder 18, limit block 19. Detailed implementation manners

[0017] Example 1

[0018] As Figures 1 to 4As shown in the figure, the present invention discloses a machining fixture for a motor housing, including a machining platform 4, a chip removal hole 5, a limiting vertical plate 6, a flexible fixture 7, a dust cover 8, a front clamping hydraulic cylinder mounting seat 9, a front clamping hydraulic cylinder 10, a rear clamping hydraulic cylinder 11, a fixed seat 12, a connecting rod 13, a front clamping arm 14, a clamping head 15, a rear clamping arm 16, a limiting hydraulic cylinder mounting seat 17, a limiting hydraulic cylinder 18, and a limiting block 19. A chip removal hole 5 is opened in the center of the machining platform 4, and a chip removal groove is provided on the front side of the chip removal hole 5. The motor housing 1 is located directly above the chip removal hole 5. The limiting vertical plate 6 is installed on the upper surface of the machining platform 4, on the left and right sides of the front side of the chip removal hole 5, and abuts against the footrest 3 from the left and right sides and the rear. The flexible fixture 7 is installed on the upper surface of the machining platform 4, at the center of the rear side of the chip removal hole 5, and its flexible part abuts against the motor housing 1. The dust cover 8 is snap-fitted and installed on the top of the flexible fixture 7, above the flexible part. The front clamping hydraulic cylinder mounting seat 9 is installed on the left and right sides of the upper surface of the machining platform 4, on the left and right sides of the limiting vertical plate 6. The push rod of the front clamping hydraulic cylinder 10 is installed on the front clamping hydraulic cylinder mounting seat 9 facing the limiting vertical plate 6. The rear clamping hydraulic cylinder 11 is vertically installed on the upper surface of the machining platform 4, behind the limiting vertical plate 6. The fixed seat 12 is installed on the front clamping hydraulic cylinder 10 and the rear clamping hydraulic cylinder 11, beside the push rod. One end of the front clamping arm 14 is connected to the end of the push rod of the front clamping hydraulic cylinder 10, and the other end is equipped with a clamping head 15. One end of the rear clamping arm 16 is connected to the end of the push rod of the rear clamping hydraulic cylinder 11. The connecting rods 13 are grouped in pairs of two. One end is fixed to the fixed seat 12, and the other end is equipped with a connecting shaft that passes through the front clamping arm 14 and the rear clamping arm 16 respectively and is then connected together. The front clamping arm 14 and the rear clamping arm 16 can rotate around the connecting shaft. When the push rod of the front clamping hydraulic cylinder 10 retracts, the clamping head 15 presses on the footrest 3 from the front side. When the push rod of the rear clamping hydraulic cylinder 11 retracts, the rear clamping arm 16 presses on the footrest 3 from above. The limiting hydraulic cylinder mounting seat 17 is installed on the upper surface of the machining platform 4, behind the rear clamping hydraulic cylinder 11. The push rod of the limiting hydraulic cylinder 18 is installed on the limiting hydraulic cylinder mounting seat 17 facing the motor housing 1, and a limiting block 19 is installed at the end of its push rod. When the motor housing 1 is installed, the footrest 3 is stuck between the limiting vertical plates 6. The rear side surface of the limiting vertical plate 6 protrudes inward and is stuck on the footrest 3. Cooperating with the lever structure on the front clamping hydraulic cylinder 10 and the rear clamping hydraulic cylinder 11, the footrest 3 is clamped and fixed. At the same time, the limiting hydraulic cylinder 18 clamps the clamping column 2 from the left and right sides through the limiting block 19, and cooperates with the flexible fixture 7 to jointly clamp and fix the motor housing. Multiple points jointly clamp the motor housing to prevent it from deforming during machining and resulting in too low a yield rate.

[0019] The working principle of the present invention is as follows: Place the motor housing to be processed on the processing platform 4, make its rear side fit with the flexible fixture 7, and make its footrest 3 face forward and be stuck between the limiting vertical plates 6. Then, control the push rods of the front clamping hydraulic cylinder 10 and the rear clamping hydraulic cylinder 11 to retract, driving the front clamping arm 14, the clamping head 15, and the rear clamping arm 16 to jointly clamp the footrest 3. A limiting block mounting rod 171 is installed on one side of the limiting hydraulic cylinder mounting seat 17 close to the motor housing 1. Long holes 172 are opened at both ends of the limiting block mounting rod 171, and springs are fitted in the long holes 172; the cross-section of the limiting block 19 is a right trapezoid, and when installed, it is fitted with screws and pressed on the springs. After the motor housing 1 is placed, it is adjusted and locked by the limiting hydraulic cylinder and jointly clamped with the housing base, so as to adapt to different models of housing products.

[0020] Although the specific embodiments of the present invention have been described in detail above, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the gist of the present invention, and the modifications or deformations that do not involve creative labor are still within the protection scope of the present invention.

Claims

1. A fixture for machining a motor housing, comprising a motor housing (1). The motor housing (1) is a thin-walled outer shell, placed vertically. There are footrests (3) provided on the front sides of the left and right sides, and a clamping post (2) is provided on the rear side. It is characterized in that: Processing platform (4), chip removal hole (5), limiting vertical plate (6), flexible fixture (7), dust cover (8), front clamping hydraulic cylinder mounting seat (9), front clamping hydraulic cylinder (10), rear clamping hydraulic cylinder (11), fixed seat (12), connecting rod (13), front clamping arm (14), clamping head (15), rear clamping arm (16), limiting hydraulic cylinder mounting seat (17), limiting hydraulic cylinder (18), limiting block (19); A chip removal hole (5) is opened in the center of the processing platform (4), and a chip removal groove is provided on the front side of the chip removal hole (5). The motor housing (1) is located directly above the chip removal hole (5); The limiting vertical plate (6) is installed on the upper surface of the processing platform (4), on the left and right sides of the front side of the chip removal hole (5), and abuts against the foot seat (3) from the left and right sides and the rear; The flexible fixture (7) is installed on the upper surface of the processing platform (4), in the center of the rear side of the chip removal hole (5), and its flexible part is densely arranged with multiple needle-like structures and abuts against the motor housing (1); The dust cover (8) is snap-fitted and installed on the top of the flexible fixture (7), above the flexible part; The front clamping hydraulic cylinder mounting seats (9) are installed on the left and right sides of the upper surface of the processing platform (4), on the left and right sides of the limiting vertical plate (6); The push rod of the front clamping hydraulic cylinder (10) is installed on the front clamping hydraulic cylinder mounting seat (9) facing the limiting vertical plate (6); The rear clamping hydraulic cylinder (11) is vertically installed on the upper surface of the processing platform (4), behind the limiting vertical plate (6); The fixed seat (12) is installed on the front clamping hydraulic cylinder (10) and the rear clamping hydraulic cylinder (11), beside the push rod; One end of the front clamping arm (14) is connected to the end of the push rod of the front clamping hydraulic cylinder (10), and the other end is equipped with a clamping head (15); One end of the rear clamping arm (16) is connected to the end of the push rod of the rear clamping hydraulic cylinder (11); The connecting rods (13) are in groups of two, one end is fixed to the fixed seat (12), and the other end is equipped with a connecting shaft that passes through the front clamping arm (14) and the rear clamping arm (16) respectively and then connected together. The front clamping arm (14) and the rear clamping arm (16) can rotate around the connecting shaft; When the push rod of the front clamping hydraulic cylinder (10) retracts, the clamping head (15) presses on the foot seat (3) from the front , and when the push rod of the rear clamping hydraulic cylinder (11) retracts, the rear clamping arm (16) presses on the foot seat (3) from above; The limiting hydraulic cylinder mounting seat (17) is installed on the upper surface of the processing platform (4), behind the rear clamping hydraulic cylinder (11); The push rod of the limiting hydraulic cylinder (18) is installed on the limiting hydraulic cylinder mounting seat (17) facing the motor housing (1), and a limiting block (19) is installed at the end of its push rod.

2. The machining fixture for a motor housing according to claim 1, wherein: A limiting block mounting rod (171) is installed on one side of the limiting hydraulic cylinder mounting seat (17) close to the motor housing (1). Long holes (172) are opened at both ends of the limiting block mounting rod (171), and springs are installed in the long holes (172); The cross-section of the limiting block (19) is a right trapezoid, and when installed, it is equipped with screws and presses on the spring.

3. The machining fixture for a motor housing according to claim 1, wherein: The front clamping arm (14) is connected to the clamping head (15), and the other end is connected to the fixed seat (12) through the connecting rod (13).

4. A machining fixture for a motor housing according to claim 1, characterized in that: The clamping head (15) is in a U shape and is clamped into the base hole of the motor housing (1).

5. The machining fixture for a motor housing according to claim 1, characterized in that: When the motor housing (1) is installed, the feet (3) are clamped between the limiting vertical plates (6), and the rear side surface of the limiting vertical plates (6) protrudes inwards and is clamped on the feet (3).

6. The machining fixture for a motor housing according to claim 1, characterized in that: The front clamping arm (14) and the rear clamping arm (16) are both L-shaped. Two round holes are opened at the ends of their long sides. The round holes close to the ends are respectively connected to the ends of the push rods of the front clamping hydraulic cylinder (10) and the rear clamping hydraulic cylinder (11), and the connecting rod (13) passes through the other round hole and is connected; the rear clamping arm (16) is connected to the rear clamping hydraulic cylinder (11) through a hinge.

7. A machining fixture for a motor housing according to claim 5, characterized in that: Two screw holes are opened on one side surface of the limiting vertical plate (6), and locking screws (61) are fitted in the screw holes.

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