Differential shell turning clamp

Abstract

The utility model discloses a differential shell turning clamp which is characterized in that the differential shell turning clamp comprises a base, a clamp body and a positioning sleeve, the clamp body is coaxially arranged on the base, a movable cavity is formed between the clamp body and the base, a top disc moving in the axial direction of the clamp body is arranged in the movable cavity, a product clamping cavity is formed in the upper portion of the clamp body, and the positioning sleeve is arranged in the product clamping cavity. A product positioning part is arranged on the top face of the side, corresponding to the product clamping cavity, of the clamp body, a tool stretching-in hole is formed in the center of the product positioning part, the positioning sleeve is arranged on the product positioning part, and three equal-height cushion blocks are evenly distributed on the product positioning part along the circumference. A pressing block moving in the axial direction of the clamp body is arranged in the direction right opposite to the equal-height cushion block and connected with the top disc through a top rod. The clamp has the advantages that the structure is simple, clamping is convenient, the machining efficiency of the differential shell is improved, machining of multiple parts and multiple procedures can be achieved through one-time clamping, and the production takt is accelerated.

Description

TECHNICAL FIELD

[0001] The utility model relates to machine adds the fixture field, concretely relates to a differential mechanism shell trolley fixture. BACKGROUND

[0002] The automobile differential mechanism is the important part of automobile, can make left, right (or front, rear) drive wheel realize with different rotating speed rotation's mechanism. The differential mechanism shell's function mainly includes protecting differential mechanism, keeping differential mechanism's ventilation and maintaining differential mechanism and rear axle drive wheel's transmission axis invariable, its shell's machining precision and machining quality directly influence differential mechanism's assembly precision and motion precision, and then influence its normal work.

[0003] At present, when differential mechanism shell turning is processed, the differential mechanism shell is fixed using the fixture tooling, but because the size of differential mechanism shell is different, the through hole, chamfer, rough turning end face, rough turning half axle gear axle hole, rough turning ball surface and other processes of differential mechanism shell adopt the adaptability of existing fixture tooling is poor, and the fixture that needs to be debugged is more (about 6 sets), cannot be fixed flexibly, leading to low processing efficiency.

[0004] Because the air cylinder clamping is inconvenient on the lathe fixture, therefore the existing fixture usually needs manual compression, including using bolt to tighten the differential mechanism shell tightly, this clamping mode leads to long product clamping and taking time, seriously influence processing efficiency. SUMMARY

[0005] In view of the above deficiencies in the prior art, the utility model provides a differential mechanism shell turning fixture, which is convenient to realize automatic clamping of the differential mechanism shell, and can realize turning of the outer end face, inner ball surface, half axle hole, half axle hole end face and half axle outer circumference of the differential mechanism shell at one time, with high processing efficiency.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A differential mechanism shell turning fixture, characterized by comprising a base, a clamping body and a positioning sleeve, the clamping body is coaxially arranged on the base, the clamping body and the base have a movable cavity therebetween, a top disc movably arranged along the axial direction of the clamping body is arranged in the movable cavity, the upper part of the clamping body has a product clamping cavity, the top surface of the clamping body on the side corresponding to the product clamping cavity has a product positioning part, the center of the product positioning part has a tool insertion hole, the positioning sleeve is arranged on the product positioning part, three equal-height spacers are uniformly distributed along the circumference of the product positioning part, the opposite direction of the equal-height spacer is provided with a pressing block movably arranged along the axial direction of the clamping body, and the pressing block is connected with the top disc through a jack.

[0008] Furthermore, a tie rod connecting nut is connected to the lower end of the top plate, and the tie rod connecting nut is in contact with the spherical surface of the top plate.

[0009] Furthermore, the push rod passes through the clamping body, and the clamping body is provided with a guide sleeve that slides with the push rod.

[0010] Furthermore, a connecting plate is connected to the lower end of the base.

[0011] The advantages of this utility model include: simple structure, convenient clamping, which helps to improve the processing efficiency of differential housing, and multiple parts and multiple processes can be processed in one clamping, thus speeding up the production cycle. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a cross-sectional structural diagram of the present invention. Detailed Implementation

[0014] The present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0015] One such Figures 1-2 The differential housing jig shown includes a base 1, a jig body 2, and a positioning sleeve 3. The jig body 2 is coaxially mounted on the base 1. A movable cavity 11 is located between the jig body 2 and the base 1, and a top plate 4 that moves axially along the jig body 2 is disposed within the movable cavity 11. The upper part of the jig body 2 has a product clamping cavity, and the outer side of the product clamping cavity has a product loading inlet. A product positioning part 21 is located on the top surface of the jig body 2 corresponding to the product clamping cavity. The center of the product positioning part 21 has a tool insertion hole 22, facilitating the insertion of a cutting tool from the center of the jig body into the differential housing shaft for machining, thereby machining the inner spherical surface, inner wall of the shaft hole, end face, and outer circumferential surface of the differential housing. The product positioning part 21 is a countersunk structure, and the positioning sleeve 3 is disposed on the product positioning part 21 for positioning the outer circumferential surface of the differential housing flange. Three equal-height pads 5 are evenly distributed along the circumference of the product positioning part 21, and the three equal-height pads 5 are used for positioning and supporting the end face of the differential housing. A pressure block 6 is provided in the direction opposite to the leveling pad 5, which moves along the axial direction of the clamping body 2. The pressure block 6 is connected to the top plate 4 through the top rod 7, thereby pressing the differential housing onto the three leveling pads 5.

[0016] The lower end of the top plate 4 is connected to a tie rod connecting nut 8, which is used to connect to the tensioning cylinder at the center of the lathe spindle. The tie rod connecting nut 8 makes spherical contact with the top plate 4, thereby automatically adapting to the installation dimensional errors of the three pressure blocks 6, so that each pressure block 6 can press the product firmly.

[0017] like Figure 2As shown, the top rod 7 penetrates the clamp body 2, and the clamp body 2 is provided with a guide sleeve 9 in sliding cooperation with the top rod 7, so that the top rod 7 moves smoothly.

[0018] The lower end of the base 1 is connected with a connecting disc 10, which is used for connecting the main shaft of the lathe.

[0019] The above describes the technical solutions provided by the embodiments of the present application in detail, and the principles and implementation manners of the embodiments of the present application are described by applying specific examples; the above description of the embodiments is only applicable to helping understand the principles of the embodiments of the present application; meanwhile, for the general technical personnel in the field, the embodiments of the present application will have changes in the specific implementation manners and application ranges, and the content of the specification should not be understood as limiting the embodiments of the present application.

Claims

1. A differential housing vise, characterized by: The utility model relates to a product positioning device, including base (1), clamping body (2), positioning sleeve (3), clamping body (2) coaxial setting is located in base (1), clamping body (2) and base (1) between have movable cavity (11), movable cavity (11) in setting has the top tray (4) along clamping body (2) axial movement, clamping body (2) upper portion has product clamping cavity, clamping body (2) corresponding product clamping cavity one side top has product positioning part (21), product positioning part (21) center has cutter extension hole (22), positioning sleeve (3) sets up in product positioning part (21), product positioning part (21) on along the even distribution of three high pads (5) in circumference, the opposite direction of high pad (5) is provided with the press block (6) along clamping body (2) axial movement, press block (6) is connected with top tray (4) through the top rod (7).

2. A differential case vehicle clamp as in claim 1, wherein: The lower end of the top tray (4) is connected with a pull rod connecting nut (8), and the pull rod connecting nut (8) is in spherical contact with the top tray (4).

3. A differential case vehicle fixture as in claim 1, wherein: The top rod (7) penetrates through the clamping body (2), and the clamping body (2) is provided with a guide sleeve (9) in sliding fit with the top rod (7).

4. A differential case vehicle clamp as defined in claim 1, wherein: The lower end of the base (1) is connected with a connecting disc (10).

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