Clamping device for differential shell machining

Abstract

The utility model discloses a clamping device for differential shell machining, and relates to the technical field of differential shell machining, the clamping device comprises a clamping device body, the clamping device body is suitable for clamping in differential shell machining, the clamping device body comprises a bearing base, a machining table is arranged above the bearing base, and the machining table is arranged on the bearing base. Telescopic supporting columns are fixedly installed on the periphery of the bottom end of the machining table, the bottom ends of the telescopic supporting columns are welded to the periphery of the top of the bearing base, clamping units are arranged on the periphery of the top of the machining table, and protection units are arranged on the inner walls of the clamping units. The rubber pad is arranged to be in contact with the differential shell, so that clamping friction force can be enhanced, clamping is stable, the uneven differential shell promotes the buffer block to move backwards in the buffer cavity, and the buffer block is promoted to rebound and reset through reverse pushing force of the reset spring. And therefore, the buffer blocks drive the rubber pads to be tightly attached to the outer surface of the differential shell, and the stable clamping effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of differential housing processing, in particular to a clamping device for differential housing processing. Background Art

[0002] Differentials are widely used in the automotive industry. They are mainly used to control the front and rear wheels to achieve different speeds through structural adjustment. Since the transmission structure applicable to this device is relatively precise, the production and processing requires high precision. The differential housing needs to be clamped and fixed during processing to facilitate precise processing. For this reason, we provide a clamping device for differential housing processing.

[0003] During the processing of existing differential housings, most of them are fixed when they are positioned and clamped, which makes it inconvenient to clamp differential housings of different sizes, resulting in inconvenience in clamping. In addition, the outer surface of the differential housing is uneven, resulting in unstable clamping, thereby reducing work efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a clamping device for machining a differential housing to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A clamping device for differential housing processing includes a clamping device body, which is suitable for use in differential housing processing clamping. The clamping device body includes a bearing base, a processing table is arranged above the bearing base, telescopic support columns are fixedly installed on the four sides of the bottom end of the processing table, and the bottom ends of the telescopic support columns are welded to the four sides of the top of the bearing base.

[0007] A clamping unit is arranged on the four sides of the top of the processing table, and a protective unit is arranged on the inner wall of the clamping unit.

[0008] A further improvement of the technical solution of the utility model is that the clamping unit includes a movable groove opened on the four sides of the processing table, a limiting cross bar is fixedly installed inside the movable groove, a movable block is movably sleeved on the outer surface of the limiting cross bar, a positioning ring is fixedly installed on the inner side of the movable block, and the limiting cross bar can limit the position of the positioning ring when it moves.

[0009] A further improvement of the technical solution of the utility model is that a push plate is rotatably connected to the bottom end of the moving block, a rotating shaft is rotatably connected to the other end of the push plate, a fixed ring is fixedly installed on the other side of the rotating shaft, an electric push rod is fixedly sleeved inside the fixed ring, and four groups of push plates can enable four groups of positioning rings to change the clamping diameter.

[0010] A further improvement of the technical solution of the utility model is that the top of the electric push rod is fixedly installed on the middle position of the bottom end of the processing table, the bottom of the electric push rod is fixedly installed on the middle position of the top of the supporting base, and the bottom end of the processing table is located around the electric push rod and a limited telescopic rod is fixedly installed.

[0011] A further improvement of the technical solution of the utility model is that: the protection unit includes a buffer cavity opened inside the inner side of the positioning ring, and limiting grooves are opened on the inner walls on both sides of the buffer cavity. A rubber pad is arranged on the inner side of the positioning ring, and the rubber pad can enhance the clamping friction between the positioning ring and the differential housing.

[0012] A further improvement of the technical solution of the utility model is that a buffer block is fixedly installed on the rear side of the rubber pad, and limiting sliders are fixedly installed on both sides of the buffer block. The limiting slider is slidably connected to the inside of the limiting groove, and the limiting slider slides inside the limiting groove so that the movement of the buffer block is limited.

[0013] A further improvement of the technical solution of the utility model is that a return spring is fixedly connected to the rear outer surface of the buffer block, and the other end of the return spring is fixedly installed on the inner bottom end of the buffer cavity. The elastic potential energy of the return spring can protect the differential housing.

[0014] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0015] 1. The utility model provides a clamping device for differential housing processing. By setting an electric push rod to start, the processing table can be moved up and down, so that the push plates around change the inclination angle. The push plates drive the moving blocks to slide on the outer surface of the limit cross bar, which can change the clamping diameter of the positioning ring, making it easy to adjust according to the size of the differential housing, thereby improving the effect of clamping convenience.

[0016] 2. The utility model provides a clamping device for differential housing processing. By arranging a rubber pad in contact with the differential housing, the clamping friction can be enhanced to make the clamping stable. The unevenness of the differential housing causes the buffer block to move backward inside the buffer cavity. The reverse thrust of the reset spring causes the buffer block to rebound and reset, so that the buffer block drives the rubber pad to fit closely on the outer surface of the differential housing, thereby achieving a stable clamping effect. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 This is a schematic diagram of the processing table structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the moving block of the utility model;

[0020] Figure 4 This is a schematic diagram of the positioning ring structure of the utility model;

[0021] Figure 5 For the utility model Figure 4 A is an enlarged schematic diagram of the structure.

[0022] In the figure: 1. Clamping device body; 2. Load-bearing base; 21. Electric push rod; 23. Limit telescopic rod; 3. Processing table; 31. Moving groove; 32. Limit cross bar; 33. Moving block; 34. Push plate; 35. Rotating shaft; 36. Fixed collar; 37. Positioning ring; 371. Buffer cavity; 372. Limit groove; 38. Rubber pad; 381. Buffer block; 382. Limit slider; 383. Reset spring; 4. Telescopic support column. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example 1

[0025] like Figure 1-5 As shown, the utility model provides a clamping device for processing a differential housing, including a clamping device body 1, which is suitable for clamping a differential housing. The clamping device body 1 includes a bearing base 2, a processing table 3 is arranged above the bearing base 2, and telescopic support columns 4 are fixedly installed around the bottom end of the processing table 3. The bottom end of the telescopic support column 4 is welded to the top of the bearing base 2. A clamping unit is arranged around the top of the processing table 3, and a protective unit is arranged on the inner wall of the clamping unit. The protective unit includes a positioning ring A buffer cavity 371 is provided inside the inner side of 37, and limiting grooves 372 are provided on the inner walls on both sides of the buffer cavity 371. A rubber pad 38 is provided on the inner side of the positioning ring 37, and a buffer block 381 is fixedly installed on the rear side of the rubber pad 38. Limiting sliders 382 are fixedly installed on both sides of the buffer block 381. The limiting sliders 382 are slidably connected to the inside of the limiting grooves 372. A return spring 383 is fixedly connected to the outer surface of the rear side of the buffer block 381, and the other end of the return spring 383 is fixedly installed on the inner bottom end of the buffer cavity 371.

[0026] Furthermore, during clamping, the differential housing contacts the rubber pad 38, which enhances the clamping friction and makes the clamping stable. At the same time, the unevenness of the differential housing causes the buffer block 381 to move backward inside the buffer cavity 371, and then the reverse thrust of the reset spring 383 causes the buffer block 381 to rebound and reset, so that the buffer block 381 drives the rubber pad 38 to fit closely on the outer surface of the differential housing, thereby achieving stable clamping.

[0027] Example 2

[0028] like Figure 1-5 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the clamping unit includes a moving groove 31 opened on the four sides of the processing table 3, a limiting cross bar 32 is fixedly installed inside the moving groove 31, a moving block 33 is movably sleeved on the outer surface of the limiting cross bar 32, a positioning ring 37 is fixedly installed on the inner side of the moving block 33, a pushing plate 34 is rotatably connected to the bottom end of the moving block 33, a rotating shaft 35 is rotatably connected to the other end of the pushing plate 34, a fixing ring 36 is fixedly installed on the other side of the rotating shaft 35, an electric push rod 21 is fixedly sleeved inside the fixing ring 36, the top of the electric push rod 21 is fixedly installed on the middle position of the bottom end of the processing table 3, the bottom of the electric push rod 21 is fixedly installed on the middle position of the top of the supporting base 2, and the bottom end of the processing table 3 is located on the four sides of the electric push rod 21, and a limiting telescopic rod 23 is fixedly installed.

[0029] Furthermore, by placing the differential housing to be processed in the middle position on the top of the processing table 3, the electric push rod 21 can be started to cause the processing table 3 to move up and down, thereby causing the push plates 34 on all sides to change their inclination angles. The push plates 34 drive the moving blocks 33 to slide on the outer surface of the limiting cross bar 32, which can change the clamping diameter of the positioning ring 37 and can be adjusted according to the size of the differential housing.

[0030] The working principle of the clamping device for machining the differential housing will be described in detail below.

[0031] like Figure 1-5As shown, when in use, the differential housing to be processed is placed in the middle position on the top of the processing table 3. At this time, the electric push rod 21 is started to cause the processing table 3 to move up and down, thereby causing the push plates 34 on all sides to change the inclination angle. The push plates 34 drive the moving blocks 33 to slide on the outer surface of the limiting cross bar 32, which can change the clamping diameter of the positioning ring 37 and can be adjusted according to the size of the differential housing. When clamping, the differential housing contacts the rubber pad 38 to enhance the clamping friction and make the clamping stable. At the same time, the unevenness of the differential housing causes the buffer block 381 to move back inside the buffer cavity 371, and then the reverse pushing force of the reset spring 383 causes the buffer block 381 to rebound and reset, thereby causing the buffer block 381 to drive the rubber pad 38 to fit closely on the outer surface of the differential housing, thereby achieving stable clamping.

[0032] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A clamping device for machining a differential case, comprising a clamping device body (1), suitable for clamping a differential case, characterized in that: The clamping device body (1) comprises a bearing base (2), a processing table (3) is arranged above the bearing base (2), telescopic support columns (4) are fixedly installed around the bottom end of the processing table (3), and the bottom ends of the telescopic support columns (4) are welded to the top of the bearing base (2); The top of the processing table (3) is provided with a clamping unit on all sides, and the inner wall of the clamping unit is provided with a protective unit; The clamping unit comprises a moving groove (31) provided on the periphery of the processing table (3), a limiting cross bar (32) is fixedly installed inside the moving groove (31), a moving block (33) is movably sleeved on the outer surface of the limiting cross bar (32), and a positioning ring (37) is fixedly installed on the inner side of the moving block (33); A push plate (34) is rotatably connected to the bottom end of the moving block (33); a rotating shaft (35) is rotatably connected to the other end of the pushing plate (34); a fixed collar (36) is fixedly installed on the other side of the rotating shaft (35); an electric push rod (21) is fixedly sleeved inside the fixed collar (36); The top of the electric push rod (21) is fixedly mounted on the middle position of the bottom end of the processing table (3), the bottom of the electric push rod (21) is fixedly mounted on the middle position of the top end of the supporting base (2), and the bottom end of the processing table (3) is located on the four sides of the electric push rod (21) and fixedly mounted with limiting telescopic rods (23).

2. A clamping device for machining a differential case according to claim 1, characterized in that: The protection unit comprises a buffer cavity (371) provided inside the inner side of the positioning ring (37), limiting grooves (372) are provided on the inner walls on both sides of the buffer cavity (371), and a rubber pad (38) is provided on the inner side of the positioning ring (37).

3. A clamping device for machining a differential case according to claim 2, characterized in that: A buffer block (381) is fixedly mounted on the rear side of the rubber pad (38), and limiting sliders (382) are fixedly mounted on both sides of the buffer block (381), and the limiting sliders (382) are slidably connected to the inside of the limiting groove (372).

4. A clamping device for machining a differential case according to claim 3, characterized in that: A return spring (383) is fixedly connected to the rear outer surface of the buffer block (381), and the other end of the return spring (383) is fixedly mounted on the inner bottom end of the buffer cavity (371).

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