A differential case polishing apparatus

Abstract

The utility model provides a kind of differential shell polishing equipment, belong to machining technical field, to solve the problem of insufficient differential shell burr polishing conversion efficiency for different pouring port brings different end face, including polishing box, there is tool post and bearing main frame in polishing box vertical distribution, polishing frame is slidably arranged on tool post, polishing motor is set on polishing frame, and polishing piece is connected to the output end of polishing motor, mounting plate is slidably arranged on bearing main frame, support arm is connected to the front side of mounting plate, swing arm is rotatably connected to the end of support arm, tray is rotatably set on swing arm, differential shell is installed on tray, torsion motor is installed at the bottom of support arm and controls swing arm swing, and rotary motor is set at the bottom of swing arm and controls tray rotation.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical processing technology, and more specifically, it relates to a differential housing grinding device. Background Technology

[0002] As a core load-bearing component in the automotive drive axle, the differential housing must house and support precision components such as gear sets and cross shafts, ensuring stable power transmission under complex alternating loads. This component is typically made of high-strength cast iron or aluminum alloy, formed into an initial blank through melting and casting. After casting, irregular allowances such as casting flash and parting lines remain on the surface and inner cavity of the housing. These require overall deburring using a specialized CNC machine tool, followed by fine grinding of critical areas such as weld bevels and bearing housing mounting surfaces using a multi-axis robotic arm in conjunction with a belt grinder.

[0003] However, machine tool grinding requires the installation of corresponding tooling, which is not efficient enough for grinding the burrs on the differential housing caused by different pouring ports.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a differential housing grinding device in order to achieve a more practical purpose. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a differential housing grinding device to solve the problem of insufficient grinding efficiency for differential housing burrs caused by different injection ports and different end faces.

[0006] The purpose and effect of this utility model's differential housing grinding equipment are achieved through the following specific technical means:

[0007] A differential housing grinding device includes a grinding box, in which tool columns and a supporting frame are vertically arranged. A grinding frame is slidably mounted on the tool columns, and a grinding motor is mounted on the grinding frame. A grinding disc is connected to the output end of the grinding motor. A mounting plate is slidably mounted on the supporting frame, and a support arm is connected to the front side of the mounting plate. A swing arm is rotatably connected to the end of the support arm, and a tray is rotatably mounted on the swing arm. The differential housing is mounted on the tray. A torsion motor is mounted at the bottom of the support arm to control the swing arm to swing, and a rotary motor is mounted at the bottom of the swing arm to control the rotation of the tray.

[0008] Furthermore, the support arm is also provided with an arched positioning frame, one end of which is sleeved on the top rotating shaft of the swing arm.

[0009] Furthermore, the top of the swing arm is provided with a "7"-shaped top frame, on which a cylinder is provided. The output axis of the cylinder passes downward through the top frame and is rotatably connected to a positioning clamp. The vertical axis of the positioning clamp corresponds to the center line of the tray.

[0010] Furthermore, both the grinding frame and the mounting plate are driven by a screw lifting mechanism.

[0011] Furthermore, the swing arm is also provided with a detection element, which includes two mounting blocks symmetrically distributed on the swing arm. Each mounting block is provided with an electric telescopic rod, and the output shafts of the two electric telescopic rods abut against the detection blocks. The detection blocks abut against the side wall of the tray.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The differential housing is placed on a swing arm and then on a tray. The tray rotates, causing the differential housing to rotate so that it can align with the direction of the grinding discs all the way around. The grinding discs then polish the burrs on the end face of the differential housing. The raising and lowering of the grinding frame and mounting plate allows the suspended differential housing to be polished on different end faces at will, improving polishing efficiency. Furthermore, the swing arm makes loading the differential housing and changing the polishing settings more convenient. Attached Figure Description

[0014] Figure 1 This is a perspective view of a differential housing grinding device according to the present invention.

[0015] Figure 2 This is a three-dimensional sectional view of part of the structure of the grinding box in this utility model.

[0016] Figure 3 yes Figure 2 A magnified view of region A in the middle.

[0017] Figure 4 This is a schematic diagram of the structure of the tray in this utility model.

[0018] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0019] 1. Grinding box; 2. Sliding window; 3. Tool post; 4. Main support frame; 5. Mounting plate; 6. Support arm; 7. Positioning frame; 8. Swing arm; 9. Torsion motor; 10. Rotary motor; 11. Top frame; 12. Cylinder; 13. Grinding frame; 14. Positioning chuck; 15. Grinding motor; 16. Differential housing; 17. Tray; 18. Grinding disc; 19. Inspection piece; 1901. Mounting block; 1902. Electric telescopic rod; 1903. Inspection block. Detailed Implementation

[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0021] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Example:

[0024] As attached Figure 1 To be continued Figure 4 As shown:

[0025] This utility model provides a differential housing grinding device, including a grinding box 1 with an opening on the front and a movable sliding window 2. Inside the grinding box 1, a tool post 3 and a supporting frame 4 are vertically arranged. A grinding frame 13 is slidably mounted on the tool post 3, and a grinding motor 15 is mounted on the grinding frame 13. A grinding disc 18 is connected to the output end of the grinding motor 15. A mounting plate 5 is slidably mounted on the supporting frame 4. Both the grinding frame 13 and the mounting plate 5 are driven by a screw lifting mechanism. In this embodiment, motors are installed at the top of both the tool post 3 and the supporting frame 4, with screws passing through them. The motors drive the screws to rotate. The grinding frame 13 is slidably mounted on the tool post 3 and threadedly connected to the screw. The mounting plate 5 is also lifted using the same principle.

[0026] A support arm 6 is connected to the front of the mounting plate 5. A swing arm 8 is rotatably connected to the end of the support arm 6. A tray 17 is rotatably mounted on the swing arm 8. The differential housing 16 is mounted on the tray 17. A torsion motor 9 is installed at the bottom of the support arm 6 to control the swing arm 8 to swing. A rotary motor 10 is installed at the bottom of the swing arm 8 to control the tray 17 to rotate. The tray 17 drives the differential housing 16 to rotate. The swing arm 8 swings and causes the differential housing 16 to move closer to or away from the grinding disc 18. When it moves away from the grinding disc 18, it moves closer to the sliding window 2, which makes it easier for the operator to change and pick up the differential housing 16. The raising and lowering of the grinding frame 13 and the mounting plate 5 allows the suspended differential housing 16 to be ground on different end faces at will, improving grinding efficiency.

[0027] An arched positioning frame 7 is also provided on the support arm 6. One end of the positioning frame 7 is sleeved on the top rotating shaft of the swing arm 8. The arched positioning frame 7 extends the rotating shaft of the swing arm 8 and enhances the structural strength of the support arm 6.

[0028] The top of the swing arm 8 is provided with an inverted L-shaped top frame 11, which is also similar to the "7" shape. A cylinder 12 is provided on the top frame 11. The output shaft of the cylinder 12 passes downward through the top frame 11 and is rotatably connected to a positioning chuck 14. The vertical axis of the positioning chuck 14 corresponds to the center line of the tray 17. The output shaft of the cylinder 12 can be connected to the positioning chuck 14 through a coupling. The cylinder 12 drives the positioning chuck 14 to move down and abut against the top of the differential housing 16. The positioning chuck 14 can rotate with the differential housing 16 to increase the stability of the differential housing 16 during grinding.

[0029] In other embodiments, a limiting irregular protrusion ring is provided at the center of the tray 17, one end of the differential housing 16 is sleeved on the limiting irregular protrusion ring, and the other end is abutted and limited by the positioning chuck 14, which facilitates the replacement of the differential housing 16.

[0030] The swing arm 8 is also equipped with a detection element 19, which includes two mounting blocks 1901 symmetrically distributed on the swing arm 8. Each mounting block 1901 is equipped with an electric telescopic rod 1902. The output shafts of the two electric telescopic rods 1902 abut against the detection block 1903. The detection block 1903 abuts against the side wall of the tray 17. Different trays 17 will be replaced according to different models of differential housing 16. Whether the tray 17 meets the specifications is determined by marking the center with the detection block 1903. After the electric telescopic rod 1902 clamps the detection block 1903 and abuts against the tray 17, the tray 17 is rotated. If the marked position of the detection block 1903 does not shift, the differential housing 16 is placed and polished to improve the polishing accuracy.

[0031] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A differential housing grinding device, characterized in that: The device includes a grinding box (1), in which tool columns (3) and a main support frame (4) are vertically arranged. A grinding frame (13) is slidably arranged on the tool columns (3). A grinding motor (15) is arranged on the grinding frame (13). A grinding disc (18) is connected to the output end of the grinding motor (15). A mounting plate (5) is slidably arranged on the main support frame (4). A support arm (6) is connected to the front side of the mounting plate (5). A swing arm (8) is rotatably connected to the end of the support arm (6). A tray (17) is rotatably arranged on the swing arm (8). The differential housing is installed on the tray (17). A torsion motor (9) is installed at the bottom of the support arm (6) to control the swing arm (8) to swing. A rotary motor (10) is installed at the bottom of the swing arm (8) to control the tray (17) to rotate.

2. The differential housing grinding equipment as described in claim 1, characterized in that: An arched positioning frame (7) is also provided on the support arm (6), and one end of the positioning frame (7) is sleeved on the top rotating shaft of the swing arm (8).

3. The differential housing grinding equipment as described in claim 1, characterized in that: The top of the swing arm (8) is provided with a "7"-shaped top frame (11), and a cylinder (12) is provided on the top frame (11). The output axis of the cylinder (12) passes downward through the top frame (11) and is rotatably connected to a positioning chuck (14). The vertical axis of the positioning chuck (14) corresponds to the center line of the tray (17).

4. The differential housing grinding equipment as described in claim 1, characterized in that: Both the grinding frame (13) and the mounting plate (5) are driven by a screw lifting mechanism.

5. The differential housing grinding equipment as described in claim 1, characterized in that: The swing arm (8) is also provided with a detection element (19), which includes two mounting blocks (1901) symmetrically distributed on the swing arm (8). Each mounting block (1901) is provided with an electric telescopic rod (1902). The output shafts of the two electric telescopic rods (1902) abut against the detection block (1903), and the detection block (1903) abuts against the side wall of the tray (17).

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