Fixing mechanism for differential case machining

Abstract

The utility model discloses a fixing mechanism for differential case processing, which comprises a case, one side of the case is fixedly connected with a transverse connecting rod, the inside of the case is provided with a double-side rack, the double-side rack is arranged in a T shape, the outer part of the double-side rack is meshed with two groups of gears, the two groups of gears are symmetrically arranged, and the transverse connecting rod is fixedly connected with the transverse connecting rod. A single-side rack is engaged with the side, away from the double-side rack, of the outer portion of the gear. The hydraulic lever pushes the bilateral racks to drive the gear to rotate, at the moment, the gear can drive the unilateral rack to retract inwards, the differential carrier is clamped at the minimum outer diameter position, the differential carrier is vertically fixed through the transverse connecting rod, machining such as drilling on the outer surface is more convenient, and the machining efficiency is improved. The problems that in the prior art, three-jaw clamping needs to be replaced repeatedly in the punching process, and the hollow-out position of a differential case is greatly damaged by three-jaw clamping are solved, and the stability of clamping a differential is improved.

Description

Technical Field

[0001] The utility model relates to the field of differential case processing, in particular to a fixing mechanism for differential case processing. Background Art

[0002] The differential case consists of a differential housing and planetary gears. The differential housing is usually made of aluminum alloy and has four planetary gear holes inside for installing planetary gears. At both ends of the differential housing, there are input shafts and output shafts, which are connected to the engine and wheels respectively. The planetary gears include four gears, two of which are fixed to the differential housing, and the other two are connected to the wheel axles.

[0003] The existing differential case processing adopts a multi-grip fixing method to fix the differential case on a processing table, thereby realizing surface and internal processing. However, when processing the outer surface of the differential case, the clamping surface needs to be repeatedly replaced, and the hollow position of the differential case is easily damaged by excessive clamping force. Therefore, the efficiency of processing the outer surface of the differential case is low. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the clamping surface needs to be replaced repeatedly when machining the outer surface of the differential case, and the hollowed-out position of the differential case is easily damaged by excessive clamping force, so the efficiency of machining the outer surface of the differential case is low.

[0005] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a fixing mechanism for differential case processing, including a shell, a transverse connecting rod is fixedly connected to one side of the shell, a double-sided rack is arranged inside the shell, the double-sided rack is arranged in a "T" shape, the double-sided rack is meshed with gears on the outside, and there are two groups of gears arranged symmetrically, and a single-sided rack is meshed on the side of the gear away from the double-sided rack, and the single-sided rack is arranged in a "J" shape, a fixed platform is fixedly connected to one side of the shell, and the fixed platform is arranged in a "T" shape, the gear rotates on one side of the fixed platform, and a positioning rod is fixedly connected to the side of the fixed platform close to the gear.

[0006] The above technical solution enables the differential case to be placed outside the positioning rod. At this time, the double-sided racks are abutted against the outside of the differential case. The push of the double-sided racks drives the single-sided rack to fit the outside of the differential case. At this time, the differential case is fixed, and then the fixed differential case is installed in the equipment through the transverse connecting rod, which solves the problem of difficult processing of the outside of the differential case in the past and improves the convenience of processing the outside of the differential case.

[0007] The utility model is further configured such that the single-sided rack is fixedly connected to a sliding block on one side close to the fixed platform, the sliding block is arranged in an inverted "T" shape, a sliding rail is slidably connected to the outside of the sliding block, and the sliding block is fixedly connected to one side of the fixed platform away from the sliding block.

[0008] The utility model is further configured that there are two groups of single-sided racks arranged in a cross shape, the cross position of the single-sided racks is arranged at one end of the double-sided racks, and the single-sided racks are arranged on both sides of the positioning rod away from the cross position.

[0009] The utility model is further configured such that one side of the single-sided rack is slidably connected to the side of the slide rail away from the fixed platform, the side of the transverse connecting rod away from the shell is arranged in a rough shape, and a pushing component is arranged inside the shell.

[0010] The above technical solution realizes fixing the differential case by driving the double-sided racks through the pushing assembly and tightening the single-sided rack, thereby solving the problem that the external processing can only be fixed at the maximum outer diameter and improving the convenience of processing the external part of the differential case.

[0011] The utility model is further configured such that the pushing assembly includes a hydraulic lever, the hydraulic lever is fixedly connected inside the shell near a position of a transverse connecting rod, the output end of the hydraulic lever is fixedly connected to one end of a double-sided rack, and a connecting sleeve is fixedly connected to one side of the shell.

[0012] The utility model is further configured such that a longitudinal connecting rod is arranged inside the connecting sleeve, and an embedding groove is opened outside the longitudinal connecting rod near the connecting sleeve. The embedding groove is arranged in a rectangular shape, and there are two groups of the embedding grooves arranged symmetrically.

[0013] The utility model is further configured that an embedding block is embedded in the embedding groove, the embedding block is configured with a rounded corner on a side close to the embedding groove, and a pulling rod is fixedly connected to a side of the embedding block away from the embedding groove.

[0014] The utility model is further configured that a push spring is provided on the outer sleeve of the pull rod, one end of the push spring is fixedly connected to one side of the engaging block, and one end of the push spring away from the engaging block is fixedly connected to the inner side of the connecting sleeve.

[0015] The above technical solution achieves the need for disassembly, and the differential case can be fixed by simply connecting the longitudinal connecting rod inside the connecting sleeve, and the inside of the differential case can be processed, thereby solving the complexity of the need to readjust the clamping data after external processing in the past and improving the convenience of processing the differential case.

[0016] The beneficial effects of the utility model are as follows:

[0017] The utility model places the minimum inner diameter position of the differential case on the surface of the positioning rod when processing the outer surface of the differential case, and drives the gear to rotate by pushing the double-sided racks through the hydraulic lever. At this time, the gear drives the single-sided rack to retract, so as to achieve clamping at the minimum outer diameter of the differential case, and the transverse connecting rod makes the differential case upright and fixed, which makes it more convenient to perform drilling and other processing on the outer surface, solves the problem that the three-claw clamping in the past needs to be repeatedly replaced when drilling, and the three-claw clamping causes great damage to the hollow part of the differential case, thereby improving the stability of the clamped differential. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is one of the three-dimensional structural schematic diagrams of the utility model;

[0019] Figure 2 This is the second schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 3 For the utility model Figure 2 The enlarged structural diagram at A in the middle;

[0021] Figure 4 It is a three-dimensional cross-sectional structural schematic diagram of the utility model;

[0022] Figure 5 For the utility model Figure 4 Enlarged structural diagram at B in the middle.

[0023] In the figure: 1. Shell; 2. Horizontal connecting rod; 3. Double-sided rack; 4. Gear; 5. Single-sided rack; 6. Positioning rod; 7. Fixed platform; 8. Connecting sleeve; 9. Longitudinal connecting rod; 10. Fitting groove; 11. Fitting block; 12. Push spring; 13. Pull rod; 14. Hydraulic lever; 15. Sliding block; 16. Slide rail. DETAILED DESCRIPTION

[0024] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0025] See also Figure 1 - Figure 5A fixing mechanism for differential case processing comprises a housing 1, a transverse connecting rod 2 is fixedly connected to one side of the housing 1, a double-sided rack 3 is arranged inside the housing 1, the double-sided rack 3 is arranged in a "T" shape, and a gear 4 is meshed with the outside of the double-sided rack 3. There are two groups of gears 4 arranged symmetrically, and a single-sided rack 5 is meshed with the side of the gear 4 away from the double-sided rack 3, and the single-sided rack 5 is arranged in a "J" shape. A fixed platform 7 is fixedly connected to one side of the housing 1, and the fixed platform 7 is arranged in a "T" shape. The gear 4 rotates on one side of the fixed platform 7, and a positioning rod 6 is fixedly connected to the side of the fixed platform 7 close to the gear 4. A sliding block 15 is fixedly connected to the side of the single-sided rack 5 close to the fixed platform 7, and the sliding block 15 is arranged in an inverted "T" shape. A slide rail 16 is slidably connected to the outside of the sliding block 15, and the side of the sliding block 15 away from the sliding block 15 is fixedly connected to the side of the fixed platform 7. There are two groups of single-sided racks 5 arranged in a cross shape, and the crossing position of the single-sided rack 5 is arranged at one end of the double-sided rack 3. The single-sided rack 5 is away from the cross. When the gear 4 is in the state of being moved, the gear 4 can be moved to the left and right sides of the differential case, so that the gear 4 can be moved to the right and left sides of the differential case.

[0026] The pushing component includes a hydraulic lever 14, which is fixedly connected to the inside of the shell 1 near the position of the transverse connecting rod 2, and the output end of the hydraulic lever 14 is fixedly connected to one end of the double-sided rack 3. A connecting sleeve 8 is fixedly connected to one side of the shell 1, and a longitudinal connecting rod 9 is arranged inside the connecting sleeve 8. An engaging groove 10 is provided on the outside of the longitudinal connecting rod 9 near the connecting sleeve 8. The engaging groove 10 is rectangular, and there are two groups of engaging grooves 10 that are symmetrically arranged. An engaging block 11 is engaged inside the engaging groove 10, and the engaging block 11 is rounded near the side of the engaging groove 10. The engaging block 11 is fixedly connected to the side away from the engaging groove 10 with a pull rod 13, and the outer sleeve of the pull rod 13 is provided with a pushing Spring 12, one end of the push spring 12 is fixedly connected to one side of the engaging block 11, and the end of the push spring 12 away from the engaging block 11 is fixedly connected to the inner side of the connecting sleeve 8. When working, the rectangular structure of the engaging block 11 is engaged in the engaging groove 10 to ensure the stability of the connection between the longitudinal connecting rod 9 and the connecting sleeve 8, and the length of the longitudinal connecting rod 9 can be replaced to adapt to processing at different heights. After use, the push spring 12 can be pulled to allow the engaging block 11 to be disengaged from the engaging groove 10. At this time, the longitudinal connecting rod 9 can be taken out from the connecting sleeve 8, so that different heights and angles can be adjusted during fixed processing such as punching.

[0027] When the utility model is in use, the differential case is first placed on the outer surface of the positioning rod 6, and the hydraulic lever 14 is started, so that the hydraulic lever 14 pushes the double-sided racks 3 to abut against the outer surface of the differential case to fix the differential case, and the double-sided racks 3 will drive the gear 4 to rotate when pushed, so that the gear 4 can drive the single-sided rack 5 to move. In order to ensure that the single-sided rack 5 can move stably and be engaged on the outer surface of the differential, the sliding block 15 can slide inside the slide rail 16 to limit the single-sided rack 5 and prevent the single-sided rack 5 from deviating when it shrinks. At this time, the transverse connecting rod 2 is fixed at a specified position, and the differential case can be drilled and other processing can be performed. The machining procedure can avoid damage to the differential case due to excessive pressure on the hollow part. If the machining is completed, the differential case can be removed by simply reversing the operation. The rectangular structure of the engaging block 11 is engaged in the engaging groove 10 to ensure the stability of the connection between the longitudinal connecting rod 9 and the connecting sleeve 8, and the length of the longitudinal connecting rod 9 can be replaced to adapt to machining at different heights. After use, the push spring 12 can be pulled to disengage the engaging block 11 from the engaging groove 10. At this time, the longitudinal connecting rod 9 can be taken out from the connecting sleeve 8, so that different heights and angles can be adjusted during fixing machining such as punching.

[0028] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A fixing mechanism for machining a differential case, comprising a housing (1), characterized in that: One side of the housing (1) is fixedly connected to a transverse connecting rod (2); a double-sided rack (3) is arranged inside the housing (1); the double-sided rack (3) is arranged in a "T" shape; the double-sided rack (3) is meshed with a gear (4) on the outside; the gear (4) has two groups arranged symmetrically; the gear (4) is meshed with a single-sided rack (5) on the outside away from the double-sided rack (3); the single-sided rack (5) is arranged in a "J" shape; one side of the housing (1) is fixedly connected to a fixed platform (7); the fixed platform (7) is arranged in a "T" shape; the gear (4) rotates on one side of the fixed platform (7); and a positioning rod (6) is fixedly connected to the side of the fixed platform (7) close to the gear (4).

2. The fixing mechanism for differential case machining according to claim 1, characterized in that: A sliding block (15) is fixedly connected to the side of the single-sided rack (5) close to the fixed platform (7); the sliding block (15) is arranged in an inverted "T" shape; a sliding rail (16) is slidably connected to the outside of the sliding block (15); and a side of the sliding block (15) away from the sliding block (15) is fixedly connected to a side of the fixed platform (7).

3. The fixing mechanism for differential case machining according to claim 1, characterized in that: There are two groups of the single-sided racks (5) arranged in a cross shape, the cross position of the single-sided racks (5) being arranged at one end of the double-sided racks (3), and the single-sided racks (5) being arranged away from the cross position on both sides of the positioning rod (6).

4. The fixing mechanism for differential case machining according to claim 1, characterized in that: One side of the single-sided rack (5) is slidably connected to the side of the slide rail (16) away from the fixed platform (7), the side of the transverse connecting rod (2) away from the shell (1) is arranged in a rough shape, and a pushing component is arranged inside the shell (1).

5. The fixing mechanism for differential case machining according to claim 4, characterized in that: The pushing assembly comprises a hydraulic lever (14), wherein the hydraulic lever (14) is fixedly connected inside the housing (1) near a position of a transverse connecting rod (2), an output end of the hydraulic lever (14) is fixedly connected to one end of a double-sided rack (3), and a connecting sleeve (8) is fixedly connected to one side of the housing (1).

6. The fixing mechanism for differential case machining according to claim 5, characterized in that: A longitudinal connecting rod (9) is arranged inside the connecting sleeve (8), and an engaging groove (10) is provided outside the longitudinal connecting rod (9) near the connecting sleeve (8). The engaging groove (10) is arranged in a rectangular shape, and there are two groups of the engaging grooves (10) arranged symmetrically.

7. The fixing mechanism for differential case machining according to claim 6, characterized in that: An embedding block (11) is embedded in the embedding groove (10), the embedding block (11) is rounded on a side close to the embedding groove (10), and a pulling rod (13) is fixedly connected to the side of the embedding block (11) away from the embedding groove (10).

8. The fixing mechanism for differential case machining according to claim 7, characterized in that: The outer sleeve of the pulling rod (13) is provided with a push spring (12), one end of the push spring (12) is fixedly connected to one side of the engaging block (11), and the end of the push spring (12) away from the engaging block (11) is fixedly connected to the inner side of the connecting sleeve (8).

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