Differential shell shaft hole positioning and machining device

Abstract

The utility model relates to the technical field of differential mechanism shell machining, and discloses a differential mechanism shell shaft hole positioning machining device which comprises a workbench, a disc is rotationally installed at the top of the workbench, a containing column is fixed to the top of the disc, a positioning mechanism is arranged on the containing column, and the positioning mechanism is arranged on the workbench. A limiting mechanism is arranged on the workbench and comprises a threaded rod. According to the differential shell shaft hole positioning and machining device, in order to achieve better clamping stability of a workpiece, the inner clamping plate and the outer clamping plate can clamp and fix the inner side and the outer side of the workpiece by arranging a threaded rod, a rotary knob, a threaded sleeve, a connecting rod, a movable rod, a transmission rod, an inner clamping plate, a connecting rod, a sliding block, an inclined block, an outer clamping plate and an extrusion spring; the stability during workpiece machining can be better, and the situation that only the outer wall of the workpiece is clamped, and consequently the outer wall of the workpiece is prone to deformation can be prevented.

Description

Technical Field

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

[0002] The automotive differential case is the primary component used to transmit power to the two axle shafts. The case's center is hollow, with symmetrical through-holes cut into the hollow walls. The outer circumferences of the case at each end feature bearings for assembly. Controlling the machining dimensions of the bearings is a key indicator of automotive differential case quality.

[0003] In the existing positioning processing of the differential case shaft hole, most of the methods only clamp and position the outer wall of the workpiece, which leads to poor clamping effect of the tool, making the workpiece unstable during processing. In addition, only clamping the outer wall of the workpiece may easily cause deformation of the outer wall of the workpiece if clamped for a long time. Utility Model Content

[0004] The purpose of the utility model is to provide a differential case shaft hole positioning and processing device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a differential case shaft hole positioning processing device, comprising a workbench, a disc rotatably mounted on the top of the workbench, a placement column fixed on the top of the disc, a positioning mechanism provided on the placement column, a limit mechanism provided on the workbench, and the positioning mechanism comprising:

[0006] A threaded rod is rotatably mounted on the inner wall of the placement column, and a knob is fixed to the bottom of the threaded rod;

[0007] A threaded sleeve, wherein the outer wall of the threaded rod is threadedly connected to the threaded sleeve, a connecting rod is fixed to the bottom of the threaded sleeve, a transmission rod passes through the placement column, and the penetration is slidably connected;

[0008] The bottom of the connecting rod is hinged with a movable rod, and the end of the movable rod away from the connecting rod is hinged on the transmission rod, and the end point of the transmission rod is fixed with an inner clamping plate

[0009] Preferably, a connecting rod is fixed to the bottom of the threaded sleeve, an inclined block is slidably mounted on the top of the disc, a slider is slidably mounted on the side wall of the inclined block, and the end point of the connecting rod is hinged to the side wall of the slider.

[0010] Preferably, an outer clamping plate is slidably mounted on the inner wall of the inclined block, and an extrusion spring is fixed to the side wall of the outer clamping plate. The side of the extrusion spring away from the outer clamping plate is fixed to the inner wall of the inclined block. By arranging the inner clamping plate and the outer clamping plate, the workpiece can be clamped and fixed.

[0011] Preferably, four groups of outer clamping plates and inner clamping plates are provided, and the four groups of outer clamping plates and inner clamping plates are arranged in a circular array with the center point of the column being placed.

[0012] Preferably, the limiting mechanism includes a through hole, a moving block is slidably installed on the inner wall of the through hole, a connecting spring is fixed to the side wall of the moving block, and the side of the connecting spring away from the moving block is fixed to the inner wall of the through hole. By setting the connecting spring, the moving block can be reset.

[0013] Preferably, a limiting rod is fixed to the side wall of the moving block, a limiting hole is provided on the outer wall of the disc, and a rotating handle is fixed to the top of the disc.

[0014] Compared with the prior art, the present invention provides a differential case shaft hole positioning and processing device, which has the following beneficial effects:

[0015] 1. The differential case shaft hole positioning processing device, in order to improve the stability of workpiece clamping, is provided with a threaded rod, a knob, a threaded sleeve, a connecting rod, a movable rod, a transmission rod, an inner clamping plate, a connecting rod, a slider, a bevel block, an outer clamping plate and an extrusion spring. The inner clamping plate and the outer clamping plate can clamp and fix the inner and outer sides of the workpiece, thereby improving the stability of the workpiece during processing and preventing only the outer wall of the workpiece from being clamped, which easily causes deformation of the outer wall of the workpiece.

[0016] 2. The differential case shaft hole positioning processing device can adjust the orientation of the workpiece by setting through holes, connecting springs, moving blocks, limit rods and limit holes to facilitate processing of workpieces in different orientations, thereby facilitating operation by workers. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the entire utility model;

[0019] Figure 3 This is a structural diagram of the positioning mechanism of the utility model;

[0020] Figure 4 For this utility model Figure 2 A magnified schematic diagram of the A structure.

[0021] In the figure: 1. workbench; 2. disc; 3. placement column; 4. rotating handle; 5. positioning mechanism; 501. threaded rod; 502. threaded sleeve; 503. knob; 504. connecting rod; 505. transmission rod; 506. inner clamping plate; 507. movable rod; 508. connecting rod; 509. oblique block; 510. outer clamping plate; 511. extrusion spring; 512. slider; 6. limiting mechanism; 601. through hole; 602. moving block; 603. connecting spring; 604. limiting rod; 605. limiting hole. DETAILED DESCRIPTION

[0022] like Figures 1-4 As shown, the utility model provides a technical solution: a differential housing shaft hole positioning processing device, including a workbench 1, a disc 2 is rotatably installed on the top of the workbench 1, and a placement column 3 is fixed on the top of the disc 2. The workpiece can be placed by arranging the placement column 3 and the disc 2, and the workpiece can be placed on the placement column 3. A positioning mechanism 5 is provided on the placement column 3, and a limiting mechanism 6 is provided on the workbench 1.

[0023] Specifically, the positioning mechanism 5 includes a threaded rod 501, a knob 503, a threaded sleeve 502, a connecting rod 504, a movable rod 507, a transmission rod 505, an inner clamping plate 506, a connecting rod 508, a slider 512, an inclined block 509, an outer clamping plate 510 and an extrusion spring 511. The threaded rod 501 is rotatably mounted on the inner wall of the placement column 3, the threaded rod 501 passes through the disc 2, and is rotatably connected at the penetration point. A knob 503 is fixed to the bottom of the threaded rod 501, and a threaded sleeve 502 is threadedly connected to the outer wall of the threaded rod 501. When the knob 503 is turned forward, the threaded sleeve 502 can be moved downward on the threaded rod 501, and the threaded sleeve 502 can be moved downward on the threaded rod 501. The bottom of the sleeve 502 is fixed with a connecting rod 504, and the bottom of the connecting rod 504 is hinged with a movable rod 507. The end of the movable rod 507 away from the connecting rod 504 is hinged with a transmission rod 505. The transmission rod 505 passes through the placement column 3 and is slidably connected at the penetration point. The end point of the transmission rod 505 is fixed with an inner clamping plate 506. There are four inner clamping plates 506, and the four inner clamping plates 506 are arranged in a circular array with the center point of the placement column 3 as the center. The threaded sleeve 502 drives the connecting rod 504 to move downward, so that the connecting rod 504 squeezes the movable rod 507, and the movable rod 507 rotates at the hinge, so that the movable rod 507 is pressed against the transmission rod 50 5 is squeezed, so that the transmission rod 505 drives the four sets of inner clamping plates 506 to move away from each other, and the workpiece is placed on the placement column 3. The inner clamping plate 506 can be used to tighten the inner wall of the workpiece. A connecting rod 508 is fixed to the bottom of the threaded sleeve 502. The connecting rod 508 passes through the disc 2 and is slidably connected at the penetration point. An inclined block 509 is slidably installed on the top of the disc 2. A slider 512 is slidably installed on the side wall of the inclined block 509. The side wall of the slider 512 is hinged to the end point of the connecting rod 508. Then, when the threaded sleeve 502 drives the connecting rod 508 to move downward, it will cause the connecting rod 508 to move downward, causing the connecting rod 508 to squeeze the slider 512 on the inclined block 50 9, so that the slider 512 squeezes the inclined block 509 to approach the placement column 3, and the inner wall of the inclined block 509 is slidably installed with an outer clamping plate 510, and the side wall of the outer clamping plate 510 is fixed with an extrusion spring 511, and the extrusion spring 511 is fixed to the inner wall of the inclined block 509 away from the outer clamping plate 510. When the inclined block 509 approaches the placement column 3, the outer clamping plate 510 can be used to clamp the outer wall of the workpiece on the placement column 3. By clamping and fixing the inner and outer walls of the workpiece at the same time, the stability of the workpiece clamping can be improved, and the deformation of the workpiece can be prevented when the outer wall of the workpiece is clamped.

[0024] Specifically, the limiting mechanism 6 includes a through hole 601, a connecting spring 603, a moving block 602, a limiting rod 604 and a limiting hole 605; the through hole 601 is opened on the workbench 1, and the moving block 602 is slidably installed on the inner wall of the through hole 601, and the limiting rod 604 is fixed on one side of the moving block 602, and the connecting spring 603 is fixed on the other side of the moving block 602. The side of the connecting spring 603 away from the moving block 602 is fixed to the inner wall of the through hole 601. By setting the connecting spring 603, the moving block 602 can be reset. The outer wall of the disk 2 is provided with multiple groups of limiting holes 605 in a circular array, and the size of the limiting holes 605 is consistent with that of the limiting rod 604. The sizes match, and a rotating handle 4 is fixed on the top of the disc 2. When the direction of the workpiece needs to be adjusted, the rotating handle 4 can be turned to drive the disc 2 to rotate, which will cause the inner wall of the limiting hole 605 to squeeze the arc surface of the limiting rod 604, so that the limiting rod 604 is subjected to the squeezing force, so that the limiting rod 604 is moved out of the limiting hole 605, and the moving block 602 squeezes the connecting spring 603 to be compressed. When the disc 2 is rotated to the position where processing is required, since the connecting spring 603 is in a compressed state, the moving block 602 can drive the limiting rod 604 to extend into the limiting hole 605, so that the disc 2 can be fixed, making it convenient for the staff to process workpieces in different orientations.

[0025] Working principle: When the workpiece needs to be clamped, the workpiece is placed on the placement column 3 and placed between the outer clamping plate 510 and the inner clamping plate 506. When the knob 503 is turned forward, the threaded sleeve 502 can move downward on the threaded rod 501, and the threaded sleeve 502 drives the connecting rod 504 to move downward, so that the connecting rod 504 squeezes the movable rod 507, and the movable rod 507 rotates at the hinge, so that the movable rod 507 squeezes the transmission rod 505, so that the transmission rod 505 drives the four groups of inner clamping plates 506 to move mutually. Keep away from it, the inner wall of the workpiece can be tightened by the inner clamping plate 506, and when the threaded sleeve 502 drives the connecting rod 508 to move downward, the connecting rod 508 will move downward, so that the connecting rod 508 squeezes the slider 512 to move on the inclined surface of the inclined block 509, and the slider 512 squeezes the inclined block 509 to move closer to the placement column 3, and the outer wall of the workpiece sleeved on the placement column 3 can be clamped by the outer clamping plate 510. By clamping and fixing the inner and outer walls of the workpiece at the same time, the stability of the workpiece clamping can be improved.

[0026] When the direction of the workpiece needs to be adjusted, the rotating handle 4 can be turned to drive the disc 2 to rotate, which will cause the inner wall of the limiting hole 605 to squeeze the arc surface of the limiting rod 604, so that the limiting rod 604 is subjected to the squeezing force, causing the limiting rod 604 to move out of the limiting hole 605, and causing the moving block 602 to squeeze the connecting spring 603 and compress it. When the disc 2 is rotated to the position where processing is required, since the connecting spring 603 is in a compressed state, the moving block 602 can drive the limiting rod 604 to extend into the limiting hole 605, so that the disc 2 can be fixed.

[0027] The above generally describes the present invention in detail. However, it is obvious to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A differential case shaft hole positioning and processing device, comprising a workbench (1), characterized in that: A disc (2) is rotatably mounted on the top of the workbench (1), a placement column (3) is fixed on the top of the disc (2), a positioning mechanism (5) is provided on the placement column (3), and a limiting mechanism (6) is provided on the workbench (1), and the positioning mechanism (5) includes: A threaded rod (501), the inner wall of the placement column (3) is rotatably mounted with the threaded rod (501), and a knob (503) is fixed to the bottom of the threaded rod (501); A threaded sleeve (502), the outer wall of the threaded rod (501) is threadedly connected to the threaded sleeve (502), a connecting rod (504) is fixed to the bottom of the threaded sleeve (502), and a transmission rod (505) passes through the placement column (3), and the penetration is slidably connected; A movable rod (507) is hinged at the bottom of the connecting rod (504), one end of the movable rod (507) away from the connecting rod (504) is hinged on the transmission rod (505), and an inner clamping plate (506) is fixed at the end of the transmission rod (505).

2. The differential case shaft hole positioning and processing device according to claim 1, characterized in that: A connecting rod (508) is fixed to the bottom of the threaded sleeve (502), a slanted block (509) is slidably mounted on the top of the disc (2), a slider (512) is slidably mounted on the side wall of the slanted block (509), and an end point of the connecting rod (508) is hinged to the side wall of the slider (512).

3. The differential case shaft hole positioning and processing device according to claim 2, characterized in that: An outer clamping plate (510) is slidably mounted on the inner wall of the inclined block (509), and an extrusion spring (511) is fixed to the side wall of the outer clamping plate (510). The side of the extrusion spring (511) away from the outer clamping plate (510) is fixed to the inner wall of the inclined block (509).

4. The differential case shaft hole positioning and processing device according to claim 3, characterized in that: The outer clamping plates (510) and the inner clamping plates (506) are provided in four groups, and the four groups of outer clamping plates (510) and inner clamping plates (506) are arranged in a circular array with the center point of the column (3) being placed thereon.

5. The differential case shaft hole positioning and processing device according to claim 1, characterized in that: The limiting mechanism (6) comprises a through hole (601), a moving block (602) is slidably mounted on the inner wall of the through hole (601), a connecting spring (603) is fixed to the side wall of the moving block (602), and the side of the connecting spring (603) away from the moving block (602) is fixed to the inner wall of the through hole (601).

6. The differential case shaft hole positioning and processing device according to claim 5, characterized in that: A limiting rod (604) is fixed to the side wall of the moving block (602), a limiting hole (605) is provided on the outer wall of the disc (2), and a rotating handle (4) is fixed to the top of the disc (2).

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