Differential shell end face threaded hole clamp

Abstract

The utility model discloses a differential shell end face threaded hole clamp which comprises a bottom plate, a base is fixedly connected to the top end of the bottom plate, a clamping table is fixedly connected to the top end of the base, a plurality of air cylinders are fixedly connected to the bottom end of the clamping table and located in the base, and telescopic rods are fixedly connected to the telescopic ends of the air cylinders. And a positioning sleeve is fixedly connected to the top end of the clamping table and located at the positions of the multiple telescopic rods. The telescopic rod is driven by the air cylinder to contract, the cushion block is pulled downwards by the telescopic rod, the top end of the supporting column makes close contact with the surface of the differential shell body, rapid fixing of the differential shell body is achieved, the clamp is located through a middle hole, the locating mandrel has the locating function and the mistake proofing function, clamping consistency is better, and the structure is simple. Fixing is firm, dismounting is convenient, and product machining precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of differential shell production, in particular to a clamp for threaded holes on the end face of a differential shell. Background Art

[0002] The differential case, also known as the differential housing, is an important component of the rear wheel axle reducer of a car. It has the function of protecting the differential. Its main function is to allow the left and right drive wheels (inner wheels and outer wheels) of the car to rotate at different speeds when turning, thereby ensuring that the car can turn smoothly. This is achieved through the special design of the gear set inside the differential case. These gear sets allow the two half-axles (i.e. left and right wheels) to rotate at different speeds while transmitting power. During the production process of the differential case, it is usually necessary to open threaded holes on the end faces.

[0003] Most of the current differential shells need to be fixed with a positioning fixture when opening screw holes, but most of the current fixtures are positioned based on the outer circle at both ends. The outer circle manufacturing size has deviations, the clamping consistency has deviations, and the processing will affect the size results. Utility Model Content

[0004] The purpose of the utility model is to provide a fixture for threaded holes on the end face of a differential housing, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fixture for threaded holes on the end face of a differential shell, comprising a base plate, the top of the base plate is fixedly connected to a base, the top of the base is fixedly connected to a clamping platform, the bottom end of the clamping platform and located inside the base are fixedly connected to multiple cylinders, the telescopic ends of multiple cylinders are fixedly connected to telescopic rods, the top end of the clamping platform and located at the positions of multiple telescopic rods are fixedly connected to positioning sleeves, the outer surface of the telescopic rod is movably connected to the inner surface of the positioning sleeve, the outer surfaces of multiple positioning sleeves are all connected to the differential shell bodies, the outer surfaces of multiple telescopic rods are all inserted with pads, and the bottom ends of multiple pads respectively conflict with the top ends of multiple differential shell bodies.

[0006] As a further preferred embodiment of the present technical solution, a plurality of mounting plates are fixedly connected to the top of the clamping table and near the edge, a movable sleeve is fixedly connected to one side of the plurality of mounting plates, a positioning rod is movably connected inside the plurality of movable sleeves, and one end of the plurality of positioning rods is respectively plugged into the interior of the plurality of differential shell bodies.

[0007] As a further preferred embodiment of the present technical solution, the outer surfaces of the plurality of positioning rods are sleeved with return springs, and two ends of the return springs respectively contact the outer surface of the positioning rod and the inner surface of the movable sleeve.

[0008] As a further preferred embodiment of the present technical solution, both sides of the plurality of mounting plates are fixedly connected with positioning plates, and one side of the plurality of positioning plates respectively contacts the outer surfaces of the plurality of differential shell bodies.

[0009] As a further preferred embodiment of the present technical solution, a seat is fixedly connected to the top of the clamping table and located at the positions of the plurality of positioning sleeves, and the bottom end of the differential housing body is plugged into the interior of the seat.

[0010] As a further preferred embodiment of the present technical solution, a plurality of support columns are fixedly connected to the top ends of the plurality of clamping tables, and the top ends of the plurality of support columns are respectively in contact with the outer surfaces of the plurality of differential shell bodies.

[0011] The utility model provides a fixture for threaded holes on the end face of a differential shell, which has the following beneficial effects:

[0012] (1) The utility model drives the telescopic rod to retract through the cylinder, so that the pad is pulled downward by the telescopic rod, so that the top of the support column is in close contact with the surface of the differential shell body, thereby realizing rapid fixation of the differential shell body. The clamp is positioned with the middle hole, and the positioning core shaft not only has a positioning function, but also has an error-proofing function. The clamping consistency is better, the structure is simple, the fixation is firm and the disassembly is convenient, thereby improving the product processing accuracy.

[0013] (2) The utility model drives the positioning rod into the through hole of the differential shell body by restoring the elastic deformation of the pressure spring, thereby positioning the differential shell body, effectively preventing the differential shell body from rotating during the processing, improving the stability of the differential shell body during the processing, and improving the processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a cross-sectional schematic diagram of the overall structure of the utility model;

[0016] Figure 3 It is a schematic cross-sectional view of the overall side structure of the utility model.

[0017] In the figure: 1. Base plate; 2. Base; 3. Clamping table; 4. Cylinder; 5. Telescopic rod; 6. Positioning sleeve; 7. Differential housing body; 8. Pad; 9. Seat; 10. Support column; 11. Mounting plate; 12. Movable sleeve; 13. Positioning rod; 14. Return spring; 15. Positioning plate. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0019] The utility model provides a technical solution: Figure 1-3 When the cam 2 is in the air, the cam 2 is in the air, and the cam 2 is in the air, and the cam 2 is in the air, and the cam 2 is in the air, and the cam 2 is in the air, and the cam 2 is in the air, and the cam 2 is in the air, and the cam 2 is in the air, and the cam 2 is in the air.

[0020] like Figure 1 and Figure 3 As shown, multiple mounting plates 11 are fixedly connected at the top of the clamping table 3 and near the edge. One side of the multiple mounting plates 11 is fixedly connected to a movable sleeve 12. The multiple movable sleeves 12 are movably connected to positioning rods 13. One end of the multiple positioning rods 13 is respectively plugged into the interior of multiple differential shell bodies 7. By setting the positioning rods 13, the differential shell body 7 can be positioned by plugging into the through holes of the differential shell body 7 to prevent rotation.

[0021] like Figure 3 As shown, the outer surfaces of multiple positioning rods 13 are all sleeved with return springs 14, and the two ends of the return springs 14 respectively conflict with the outer surface of the positioning rods 13 and the inner surface of the movable sleeve 12. By setting the return springs 14, a continuous force can be applied to the positioning rods 13, thereby preventing the positioning rods 13 from falling off from the inside of the differential shell body 7 during processing.

[0022] like Figure 1 and Figure 3 As shown, multiple mounting plates 11 are fixedly connected to positioning plates 15 on both sides, and one side of the multiple positioning plates 15 respectively conflicts with the outer surfaces of the multiple differential shell bodies 7. By setting the positioning plates 15, the differential shell body 7 can be assisted in positioning, thereby reducing the force applied to the positioning rod 13 during processing and improving its service life.

[0023] like Figure 2 As shown, a pad 9 is fixedly connected to the top of the clamping platform 3 and located at the positions of multiple positioning sleeves 6. The bottom end of the differential shell body 7 is plugged into the inside of the pad 9. By setting a pad 8, the bottom end of the differential shell body 7 can be protected to prevent damage due to pressure.

[0024] like Figure 1 and Figure 3As shown, multiple support columns 10 are fixedly connected to the top of multiple clamping tables 3, and the tops of multiple support columns 10 are respectively in contact with the outer surfaces of multiple differential shell bodies 7. By setting the support columns 10, the differential shell body 7 can be supported to improve the stability during the processing.

[0025] The utility model provides a fixture for threaded holes on the end face of a differential housing, and the specific working principle is as follows:

[0026] When processing the threaded hole of the differential shell body 7, the staff will pull the positioning rod 13 to shrink it into the movable sleeve 12. During the shrinkage process, the return spring 14 is elastically deformed by the pressure, and then the differential shell body 7 is inserted into the positioning sleeve 6. Then the pad 8 is inserted into the telescopic rod 5 and the cylinder 4 is started. The cylinder 4 drives the telescopic rod 5 to shrink and the differential shell body 7 is pressed and fixed by the action of the pad 8. Then the positioning rod 13 is released, and the return spring 14 restores the elastic deformation and pushes the positioning rod 13 into the through hole on the differential shell body 7 for positioning.

[0027] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixture for threaded holes on the end face of a differential housing, comprising a base plate (1), characterized in that: The top of the bottom plate (1) is fixedly connected to a base (2), the top of the base (2) is fixedly connected to a clamping platform (3), the bottom of the clamping platform (3) and located inside the base (2) are fixedly connected to a plurality of cylinders (4), the telescopic ends of the plurality of cylinders (4) are fixedly connected to telescopic rods (5), the top of the clamping platform (3) and located at the positions of the plurality of telescopic rods (5) are fixedly connected to a positioning sleeve (6), the outer surface of the telescopic rod (5) is movably sleeved with the inner surface of the positioning sleeve (6), the outer surfaces of the plurality of positioning sleeves (6) are sleeved with a differential shell body (7), the outer surfaces of the plurality of telescopic rods (5) are plugged with a pad (8), and the bottom ends of the plurality of pads (8) are respectively in conflict with the top ends of the plurality of differential shell bodies (7).

2. The fixture for threaded holes on the end face of a differential housing according to claim 1, characterized in that: A plurality of mounting plates (11) are fixedly connected to the top of the clamping platform (3) and near the edge thereof. A movable sleeve (12) is fixedly connected to one side of each of the mounting plates (11). Positioning rods (13) are movably connected inside the movable sleeves (12). One end of each of the positioning rods (13) is respectively plugged into the interior of the plurality of differential housing bodies (7).

3. The fixture for threaded holes on the end face of a differential housing according to claim 2, characterized in that: The outer surfaces of the plurality of positioning rods (13) are sleeved with return springs (14), and the two ends of the return springs (14) respectively contact the outer surface of the positioning rods (13) and the inner surface of the movable sleeve (12).

4. The fixture for threaded holes on the end face of a differential housing according to claim 3, characterized in that: Positioning plates (15) are fixedly connected to both sides of the plurality of mounting plates (11), and one side of the plurality of positioning plates (15) respectively contacts the outer surfaces of the plurality of differential housing bodies (7).

5. The fixture for threaded holes on the end face of a differential housing according to claim 1, characterized in that: A cushion seat (9) is fixedly connected to the top of the clamping platform (3) and located at the positions of the plurality of positioning sleeves (6), and the bottom end of the differential housing body (7) is plugged into the interior of the cushion seat (9).

6. The fixture for threaded holes on the end face of a differential housing according to claim 1, characterized in that: A plurality of support columns (10) are fixedly connected to the top ends of the plurality of clamping platforms (3), and the top ends of the plurality of support columns (10) are in contact with the outer surfaces of the plurality of differential housing bodies (7) respectively.

Images