Automobile rear axle housing main reducer mounting inner hole chamfering and deburring device

Abstract

The utility model discloses an automobile rear axle housing main reducer installation inner hole chamfering and deburring device which comprises a positioning and clamping unit, a boring cutter head, a lathe driving chuck and a lathe moving bearing table, and the positioning and clamping unit is composed of a bottom plate, a positioning mechanism, a clamping mechanism, a calibration mechanism and a jacking mechanism. A guide groove facilitating radial adjustment of the positioning mechanism along the rear axle housing body and a T-shaped groove facilitating clamping are formed in the bottom plate, the calibration mechanism is a handheld movable mechanism, the jacking mechanism is formed by welding a supporting seat, a reinforcing rib and a jacking mechanism base, and a supporting rod jacking the rear axle housing body controls the jacking strength through threads of the supporting seat. The device is simple in structure, reasonable in design, accurate in positioning, capable of adapting to rear axle housing bodies of different models, convenient and fast to operate, high in production efficiency and high in quality stability, and the positioning mechanism, the calibrating mechanism and the positioning and clamping mechanism are flexible and adjustable.

Description

Technical Field

[0001] The utility model relates to a device for chamfering and deburring the inner hole of a main reducer installation of a rear axle housing of an automobile, and belongs to the technical field of processing and manufacturing automobile parts. Background Art

[0002] As one of the five major assembly parts of a car, the rear drive axle of a car carries the body and has the function of power transmission. The power transmission function is to transmit the engine power to the wheels to drive the vehicle. It contains the main reducer, differential assembly, drive axle, etc., all of which are gear transmission mechanisms. Each gear pair runs at high speed, so the cleanliness requirement is high. When drilling holes for the main reducer, there are burrs at the bottom that cannot be cleaned. The existing cleaning method is manual pneumatic / electric grinding wheel cleaning, which has poor cleaning quality and cannot guarantee consistency. It requires high manual skills, poor quality control ability, and extremely low efficiency. Utility Model Content

[0003] The utility model aims to provide a device for chamfering and deburring the inner hole of the main reducer installation of the rear axle housing of an automobile, so as to solve the problems in the prior art.

[0004] The utility model is realized through the following technical solutions:

[0005] A device for chamfering and deburring the inner hole of the main reducer installation of a rear axle housing of an automobile, characterized in that it comprises a positioning clamping unit matched with a moving bearing platform of a lathe and a boring head matched with a driving chuck of the lathe;

[0006] The positioning and clamping unit comprises a base plate, a positioning mechanism, a clamping mechanism, and a tightening mechanism;

[0007] The bottom plate is fixed to the moving bearing platform of the lathe by bolts, and a T-shaped slot matching the positioning mechanism is arranged on the bottom plate;

[0008] The positioning mechanism comprises a V-shaped seat, a cushion block is arranged at the upper end of the V-shaped seat, a screw rod is threadedly connected to the vertical part of the V-shaped seat, and a limit plate is arranged on the screw rod;

[0009] The clamping mechanism includes a connecting plate, which is connected to the V-shaped seat through a base; a cylinder is arranged on the lower side of the connecting plate, and a clamping bracket is arranged on the upper side of the connecting plate; and also includes a clamping arm, the middle part of which is hinged to the clamping bracket, one side of which is hinged to the piston rod of the cylinder, and the other side of which is provided with a pressure block;

[0010] The jacking mechanism comprises a support seat, which is threadedly connected with the bottom plate through a jacking mechanism base, and a support rod is also threadedly connected to the support seat.

[0011] Furthermore: it also includes a calibration mechanism, which is movably matched with the base plate, including a calibration base plate and a column vertically connected to the calibration base plate.

[0012] Furthermore: the boring tool head includes a boring tool holder fixed to a driving chuck of a lathe, a tool rod matched with the boring tool holder, and a machined blade is arranged on the tool rod.

[0013] Furthermore: the V-shaped seat includes a horizontal connecting plate and a vertical supporting plate, a V-shaped opening is opened on the upper end of the supporting plate, and the supporting plate is fixed on the T-slot by T-bolts.

[0014] Furthermore: the limit plate is sleeved on the screw rod and is clamped and fixed on the screw rod by a nut.

[0015] Furthermore: a cylinder connecting head is threadedly connected to the piston rod of the cylinder, and the cylinder connecting head is hingedly matched with one side of the clamping arm.

[0016] The beneficial effects of the utility model are as follows: the utility model includes a positioning clamping unit, a boring head, a lathe driving chuck and a lathe moving bearing platform, and the positioning clamping unit is composed of a bottom plate, a positioning mechanism, a clamping mechanism, a calibration mechanism and a clamping mechanism. The bottom plate is provided with a guide groove and a clamping T-slot for facilitating the radial adjustment of the positioning mechanism along the rear axle housing body, the calibration mechanism is a hand-held movable mechanism, and the clamping mechanism is welded by a support seat, a reinforcing rib and a clamping mechanism base, and the support rod for clamping the rear axle housing body controls the clamping force through the thread of the support seat. It has a simple structure, a reasonable design, accurate positioning, and the positioning mechanism, calibration and positioning clamping mechanism are flexible and adjustable, and can adapt to different models of rear axle housing bodies, and is convenient and quick to operate, with high production efficiency and strong quality stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings.

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 yes Figure 1 A schematic diagram of the structure of the central positioning clamping mechanism;

[0020] Figure 3 yes Figure 2 Structural diagram of the middle clamping mechanism;

[0021] Figure 4 yes Figure 2 Structural diagram of the middle tightening mechanism;

[0022] Figure 5 yes Figure 2 The structural diagram of the positioning mechanism;

[0023] Figure 6 yes Figure 1 Schematic diagram of the structure of the boring head.

[0024] Explanation of the serial numbers in the figure: 1 positioning and clamping unit, 2 rear axle housing body, 3 boring head, 4 lathe drive chuck, 5 lathe moving bearing platform, 6 base plate, 7 positioning mechanism, 8 clamping mechanism, 9 calibration mechanism, 10 clamping mechanism, 11 cylinder, 12 connecting plate, 13 cylinder connecting head, 14 clamping bracket, 15 clamping arm, 16 pressure block, 17 base, 18 support rod, 19 support seat, 20 reinforcing rib, 21 clamping mechanism base, 22 screw, 23 limit plate, 24 cushion block, 25 adjustment shim, 26 V-type seat, 27 boring tool holder, 28 tool rod, 29 machined blade. DETAILED DESCRIPTION

[0025] according to Figures 1 to 6 The specific structure of the utility model is described in detail.

[0026] A chamfering and deburring device for the inner hole of the main reducer installation of a rear axle housing of an automobile is used to remove burrs or chamfer the inner hole of the main reducer installation hole of the rear axle housing, and comprises a positioning clamping unit 1 matched with a lathe moving bearing platform 5 and a boring head 3 matched with a lathe driving chuck 4; the positioning clamping unit 1 comprises a bottom plate 6, a positioning mechanism 7, a clamping mechanism 8, and a tightening mechanism 10;

[0027] The bottom plate 6 is fixed on the lathe movable bearing platform 5 by bolts, and a T-shaped slot matching with the positioning mechanism 7 is arranged on the bottom plate 6; the T-shaped slot is arranged along the length direction of the rear axle housing body 2;

[0028] The positioning mechanism 7 includes a V-shaped seat 26, which includes a vertical portion with a V-shaped opening at the upper end and a horizontal portion welded and fixed to the vertical portion; a pad 24 is bolted to the V-shaped opening at the upper end of the vertical portion of the V-shaped seat 26, and a screw rod 22 is also threadedly connected to the vertical portion of the V-shaped seat 26, and a limit plate 23 is movably provided on the screw rod 22;

[0029] The clamping mechanism 8 includes a connecting plate 12, which is connected to a V-shaped seat 26 via a base 17; a cylinder 11 is provided on the lower side of one end of the connecting plate 12, and a clamping bracket 14 is welded on the upper side of the connecting plate 12; and also includes a clamping arm 15, the middle part of which is hingedly matched with the upper end of the clamping bracket 14, and one side of which is hingedly connected to the piston rod of the cylinder 11, and the other side of which is bolted and provided with a pressure block 16;

[0030] The tightening mechanism 10 includes a support seat 19, which is screwed with the bottom plate 6 through a tightening mechanism base 21, and a support rod 18 is threadedly connected to the support seat 19; the support rod 18 is T-shaped, the horizontal part of the T-shaped portion is used as a handle, and the vertical part is provided with threads, which are threaded with the support seat, and the front end is in contact with the rear axle housing body 2 and provides a certain pressure for tightening the rear axle housing body 2. Further, it also includes a reinforcing rib 20 for fixing and increasing the support rod 18 and the support seat 19.

[0031] Preferably, a calibration mechanism 9 is also included, which is movably matched with the base plate 6 and includes a calibration base plate and a column vertically connected to the calibration base plate, and is used to calibrate and assist in alignment of the position of the rear axle housing body 2.

[0032] Preferably, the boring head 3 comprises a boring tool holder 27 clamped and fixed to a driving chuck 4 of a lathe, and a tool rod 28 matched with the boring tool holder 27 , on which a machined blade 29 is arranged.

[0033] Preferably, the V-shaped seat 26 comprises a horizontal connecting plate and a vertical supporting plate, a V-shaped opening is formed at the upper end of the supporting plate, and the supporting plate is fixed to the T-shaped slot by T-shaped bolts.

[0034] Preferably, the limiting plate 23 is sleeved on the screw rod 22 and is clamped and fixed on the screw rod 22 by two front and rear nuts.

[0035] Preferably, a cylinder connector 13 is threadedly connected to the piston rod of the cylinder 11 , and the cylinder connector 13 is hingedly matched with one side of the clamping arm 15 .

[0036] Preferably, an adjusting gasket 25 is further provided between the V-shaped seat 26 and the cushion block 24 .

[0037] The present invention is further described below through embodiments. The components and connection methods not described in detail in the present invention are common knowledge, such as bolt connection or welding.

[0038] A device for chamfering and deburring the inner hole of the main reducer installation of a rear axle housing of an automobile comprises a positioning and clamping unit 1, a boring head 3, a lathe driving chuck 4 and a lathe movable bearing platform 5. The positioning and clamping unit 1 is composed of a bottom plate 6, a positioning mechanism 7, a clamping mechanism 8, a calibration mechanism 9 and a tightening mechanism 10. The bottom plate 6 is provided with a T-slot for facilitating the adjustment and clamping of the positioning mechanism 8 along the radial direction (length direction) of the rear axle housing body 2. The T-bolt cooperates with the T-slot and passes through the bottom plate and is fixed by a nut.

[0039] The positioning mechanism 7 comprises a V-shaped seat 26, an adjustment gasket 25, a cushion block 24, a limit plate 23 and a screw rod 22. The V-shaped seat 26 is a welded structure. A threaded hole for installing the screw rod 22 is provided in the middle of the vertical plate of the V-shaped seat 26. The upper end is a V-shaped structure. The cushion blocks 24 are screwed on the two V-shaped surfaces by adjusting the gaskets 25. The positioning of the rear axle housing body 2 with different diameters can be met by replacing the cushion blocks 24 or increasing or decreasing the adjustment gaskets 25. The limit plate 23 for controlling the radial movement and positioning of the rear axle housing body 2 is installed on the screw rod 22. The position adjustment of the limit plate 23 meets the positioning of the rear axle housing body 2 with different lengths, and at the same time ensures the centering positioning of the rear axle housing body 2.

[0040] The clamping mechanism 8 is screwed to the V-shaped seat 26 of the positioning mechanism through the base 17. One side of the connecting plate 12 is screwed to the base 17, and the other side is screwed to the cylinder 11. The piston rod of the cylinder 11 is screwed to the cylinder connecting head 13. The clamping arm 15 is a connecting rod type connection. The rear end is connected to the cylinder connecting head 13, and the middle is hinged with the clamping bracket 14. The front end is screwed with a pressure block 16 for clamping the rear axle housing body 2. By replacing different types of pressure blocks 16, different specifications of rear axle housing bodies 2 can be clamped. The clamping bracket 14 and the connecting plate 12 are welded.

[0041] The calibration mechanism 9 is a handheld movable mechanism, which is welded by a calibration base plate, a column and a calibration reinforcement rod. The column is processed after welding to meet the verticality requirement of the column and the calibration base plate. The rear axle housing body 2 is manually calibrated and clamped before the calibration mechanism is withdrawn.

[0042] Preferably, the tightening mechanism 10 is welded by a support seat 19, a reinforcing rib 20 and a tightening mechanism base 21. The support rod 18 of the tightening rear axle housing body controls the tightening force through the thread of the support seat 19. The tightening mechanism base 21 is fixed to the bottom plate 6 by screw connection. The tightening rear axle housing body 2 is processed after machining to ensure the machining accuracy of the rear axle housing body during machining.

[0043] The boring head 3 is composed of a boring tool holder 27 fixed to a lathe driving chuck 4 and a tool rod 28 on which a standard machined blade 29 is installed.

[0044] The specific operation process is as follows:

[0045] The positioning and clamping unit 1 is installed on the lathe movable bearing platform 5, and the fixing bolts are tightened. The boring head 3 is placed in the lathe drive chuck 4 for positioning and clamping. The rear axle housing body 2 is placed in the positioning mechanism V-shaped seat 26, and the distance of the V-shaped seat 26 and the limit plate 23 are adjusted at the same time. By replacing the pad 24 and increasing or decreasing the adjustment shim 25, the center axis of the rear axle housing body 2 is kept consistent with the boring head 3. The position of the limit plate 23 is adjusted along the direction of the screw 22 to ensure that the center position of the rear axle housing body 2 is consistent with the boring head 3 to meet the processing requirements. After the rear axle housing body 2 is positioned, the clamping mechanism 8 clamps the rear axle housing body. Start the lathe boring head 3 to rotate, and manually adjust the lathe movable bearing platform 5 at the same time to complete the inner hole processing of the rear axle housing body 2. After the processing is completed, stop the lathe, adjust the lathe movable bearing platform 5 to exit the processing position, release the clamping mechanism 8 to remove the rear axle housing body, and enter the next workpiece processing.

Claims

1. A device for chamfering and deburring the inner hole of the main reducer installation of the rear axle housing of an automobile, characterized in that: It comprises a positioning clamping unit (1) matched with a moving bearing platform (5) of a lathe and a boring head (3) matched with a driving chuck (4) of the lathe; The positioning and clamping unit (1) comprises a base plate (6), a positioning mechanism (7), a clamping mechanism (8), and a tightening mechanism (10); The base plate (6) is fixed to the movable bearing platform (5) of the lathe by means of bolts, and a T-shaped slot matching the positioning mechanism (7) is provided on the base plate (6); The positioning mechanism (7) comprises a V-shaped seat (26), a cushion block (24) is arranged at the upper end of the V-shaped seat (26), a screw rod (22) is threadedly connected to the vertical portion of the V-shaped seat (26), and a limit plate (23) is arranged on the screw rod (22); The clamping mechanism (8) comprises a connecting plate (12), the connecting plate (12) being connected to a V-shaped seat (26) via a base (17); a cylinder (11) being arranged on the lower side of the connecting plate (12), and a clamping bracket (14) being arranged on the upper side of the connecting plate (12); and further comprising a clamping arm (15), the middle part of the clamping arm (15) being hinged to the clamping bracket (14), one side of the clamping arm (15) being hinged to a piston rod of the cylinder (11), and the other side of the clamping arm (16) being arranged; The tightening mechanism (10) comprises a support seat (19), the support seat (19) being threadedly engaged with the bottom plate (6) via a tightening mechanism base (21), and a support rod (18) being threadedly connected to the support seat (19).

2. The device for chamfering and deburring the inner hole of the main reducer installation of the rear axle housing of an automobile according to claim 1, characterized in that: It also includes a calibration mechanism (9), which is movably matched with the base plate (6) and includes a calibration base plate and a column vertically connected to the calibration base plate.

3. The device for chamfering and deburring the inner hole of the main reducer installation of the rear axle housing of an automobile according to claim 1, characterized in that: The boring tool head (3) comprises a boring tool holder (27) fixed to a lathe driving chuck (4), a tool rod (28) matched with the boring tool holder (27), and a machined blade (29) is arranged on the tool rod (28).

4. The device for chamfering and deburring the inner hole of the main reducer installation of the rear axle housing of an automobile according to claim 1, characterized in that: The V-shaped seat (26) comprises a horizontal connecting plate and a vertical supporting plate, the upper end of the supporting plate is provided with a V-shaped opening, and the supporting plate is fixed to the T-shaped slot by means of T-shaped bolts.

5. The device for chamfering and deburring the inner hole of the main reducer installation of the rear axle housing of an automobile according to claim 1, characterized in that: The limiting plate (23) is sleeved on the screw rod (22) and is clamped and fixed on the screw rod (22) by a nut.

6. The device for chamfering and deburring the inner hole of the main reducer installation of the rear axle housing of an automobile according to claim 1, characterized in that: A cylinder connector (13) is threadedly connected to the piston rod of the cylinder (11), and the cylinder connector (13) is hingedly matched with one side of the clamping arm (15).

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