Positioning mechanism for processing automobile bearing bush cover

Abstract

The utility model discloses a kind of positioning mechanism of automobile bearing tile cover processing, it is related to component machining positioning tool fixture technical field.It includes processing base and centering positioning mechanism, centering positioning mechanism includes side plate, spring, centering positioning plate, motor, two-way screw rod and guide block, side plate is fixedly connected at the top of processing base, the number of side plate is two and is located at the both sides of processing base respectively, the number of spring is multiple and is all fixedly connected on the surface of side plate, the number of centering positioning plate is same with side plate and all slidingly connected at the top of processing base, centering positioning plate is fixedly connected with spring, motor is fixedly connected on the surface of processing base, two-way screw rod is rotatably connected at the bottom of processing base, two-way screw rod is fixedly connected with the output end of motor, guide block is driven to slide by motor drive two-way screw rod, realize the automation adjustment of centering positioning plate, reduce manual intervention, improve positioning efficiency.

Description

Technical Field

[0001] This utility model relates to the field of component processing positioning fixtures and jigs, and in particular to a positioning mechanism for processing automotive bearing cover. Background Technology

[0002] Automotive bearing caps are key components in automotive engines and transmission systems. They are typically installed between the bearing housing and the journal, serving to secure the bearing and seal the lubricating medium. Their presence reduces bearing wobble during operation, ensures stable shaft rotation, and prevents mechanical failures caused by loosening. When a car is in motion, the high-speed operation of components such as the engine and transmission generates continuous vibration and pressure. The bearing cap, through its tight fit with the bearing housing, evenly distributes these forces, protecting the bearing from excessive wear and extending its service life. It also prevents external dust and impurities from entering the bearing, maintaining a clean lubrication environment and ensuring that the lubricating grease functions effectively.

[0003] In the current machining and positioning of automotive bearing cover, traditional centering positioning methods mostly rely on manual adjustment or a single mechanical structure. The positioning process is cumbersome and inefficient. Manual positioning is prone to insufficient positioning accuracy due to differences in operation, causing the cover to shift during machining and increasing the risk of scrap. A single mechanical structure is difficult to adapt to different specifications of cover, has poor adjustment flexibility, and is prone to decreased positioning stability due to component wear after long-term use. It cannot meet the requirements of efficient and precise machining, which has an adverse impact on production continuity and product quality. Therefore, a positioning mechanism for machining automotive bearing cover is needed. Utility Model Content

[0004] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a positioning mechanism for processing automotive bearing cover, which can solve the problems of insufficient accuracy due to reliance on manual adjustment in traditional positioning, poor adaptability of single structure, and easy damage to the cover during the positioning process.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a positioning mechanism for machining automotive bearing caps, comprising a machining base and a centering positioning mechanism. The centering positioning mechanism includes side plates, springs, a centering positioning plate, a motor, a bidirectional screw, and guide blocks. The side plates are fixedly connected to the top of the machining base, and there are two side plates located on both sides of the machining base. There are multiple springs, all fixedly connected to the surface of the side plates. The number of centering positioning plates is the same as that of the side plates, and they are all slidably connected to the top of the machining base. The centering positioning plates are fixedly connected to the springs. The motor is fixedly connected to the surface of the machining base. The bidirectional screw is rotatably connected to the bottom of the machining base and is fixedly connected to the output end of the motor. The guide blocks are threaded onto the outer surface of the bidirectional screw and are slidably connected to the machining base. The number of guide blocks is the same as that of the centering positioning plates, and they are in contact with the corresponding centering positioning plates.

[0006] Preferably, the top of the processing base is fixedly connected to multiple guide rods, and the central positioning plate is slidably sleeved on the outer surface of the guide rods.

[0007] Preferably, the top of the processing base is provided with a lifting bracket, which is C-shaped. A hydraulic cylinder is fixedly connected to the top of the lifting bracket, and a mounting base is fixedly connected to the output end of the hydraulic cylinder.

[0008] Preferably, a positioning cover plate is movably connected to the bottom of the mounting base, and a positioning protrusion plate is fixedly connected to the lower part of the lifting bracket.

[0009] Preferably, the positioning cover plate is an arc-shaped cover plate.

[0010] Preferably, the positioning cover is a V-shaped cover.

[0011] Preferably, a second hydraulic cylinder is fixedly connected to the surface of the processing base, and the output end of the second hydraulic cylinder is fixedly connected to the bottom of the lifting bracket.

[0012] Preferably, a limiting plate is fixedly connected to the bottom of the lifting bracket, and the limiting plate is slidably connected to the processing base.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: The positioning mechanism for processing automotive bearing cover uses a motor-driven bidirectional screw to slide the guide block, thereby achieving automated adjustment of the centering positioning plate, reducing manual intervention, and improving positioning efficiency. The spring and guide block work together to form an elastic clamping structure, which can achieve adaptive centering of the cover through spring force and precisely control the position of the positioning plate through the guide block, ensuring positioning accuracy. The guide rod ensures smooth sliding of the positioning plate and avoids offset. No complex adjustments are required when adapting to different specifications of cover, enhancing the versatility of the mechanism. This structure combines mechanical transmission with elastic buffering, reducing damage to the cover during positioning and improving processing stability and reliability. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the main body of this utility model; Figure 2 This is a schematic diagram of the guide block of this utility model; Figure 3 This is a schematic diagram of the limiting plate of this utility model; Figure 4 This is a schematic diagram of the lifting support of this utility model.

[0015] Reference numerals in the attached drawings: 1. Machining base; 2. Side plate; 3. Spring; 4. Centering positioning plate; 5. Guide rod; 6. Motor; 7. Bidirectional screw; 8. Guide block; 9. Lifting bracket; 10. Hydraulic cylinder; 11. Mounting seat; 12. Positioning cover plate; 13. Positioning protrusion plate; 14. Limiting plate; 15. Second hydraulic cylinder. Detailed Implementation

[0016] This section will describe in detail the specific embodiments of this utility model. Preferred embodiments of this utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, enabling a person to intuitively and vividly understand each technical feature and overall technical solution of this utility model. However, they should not be construed as limiting the scope of protection of this utility model. In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They 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. Therefore, they should not be construed as limiting this utility model.

[0017] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of "first" and "second" in the description is for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, the quantity of indicated technical features, or the order of the indicated technical features. In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installing," and "connecting" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of these terms in this utility model based on the specific content of the technical solution.

[0018] Please see Figure 1-4 This utility model provides a technical solution: a positioning mechanism for processing automotive bearing cover, including a processing base 1 and a centering positioning mechanism. The centering positioning mechanism includes a side plate 2, a spring 3, a centering positioning plate 4, a motor 6, a bidirectional screw 7, and a guide block 8. The side plate 2 is fixedly connected to the top of the processing base 1. There are two side plates 2, which are located on both sides of the processing base 1. There are multiple springs 3, which are all fixedly connected to the surface of the side plate 2. The number of centering positioning plates 4 is the same as that of the side plates 2, and they are all slidably connected to the top of the processing base 1. The centering positioning plates 4 are fixedly connected to the springs 3. The motor 6 is fixedly connected to the surface of the processing base 1. The bidirectional screw 7 is rotatably connected to the bottom of the processing base 1. The bidirectional screw 7 is fixedly connected to the output end of the motor 6. The guide block 8 is threaded onto the outer surface of the bidirectional screw 7. The guide block 8 is slidably connected to the processing base 1. The number of guide blocks 8 is the same as that of the centering positioning plate 4, and each guide block 8 is in contact with the corresponding centering positioning plate 4.

[0019] Multiple guide rods 5 are fixedly connected to the top of the processing base 1. A central positioning plate 4 is slidably sleeved on the outer surface of the guide rods 5. A lifting bracket 9 is provided on the top of the processing base 1. The lifting bracket 9 is C-shaped. A hydraulic cylinder 10 is fixedly connected to the top of the lifting bracket 9. A mounting base 11 is fixedly connected to the output end of the hydraulic cylinder 10. A positioning cover plate 12 is movably connected to the bottom of the mounting base 11. A positioning protrusion 13 is fixedly connected to the lower part of the lifting bracket 9. The positioning cover plate 12 is an arc-shaped cover plate or a V-shaped cover plate. A second hydraulic cylinder 15 is fixedly connected to the surface of the processing base 1. The output end of the second hydraulic cylinder 15 is fixedly connected to the bottom of the lifting bracket 9. A limit plate 14 (located below the positioning protrusion 13 and placed vertically to it) is fixedly connected to the bottom of the lifting bracket 9. The limit plate 14 is slidably connected to the processing base 1.

[0020] The machining base 1, as the basic load-bearing component of the entire mechanism, is made of high-strength cast iron to enhance structural stability. The top provides an installation reference surface for each component. The side plates 2 are fixed to the top two sides of the machining base 1 by bolts to form a symmetrical support structure, providing an installation carrier for the spring 3 and the centering positioning plate 4.

[0021] Multiple springs 3 are fixedly connected to the surface of the side plate 2. The other end of the spring 3 is fixedly connected to the centering positioning plate 4. When the centering positioning plate 4 is moved by force, the spring 3 undergoes elastic deformation to store potential energy. When the force is unloaded, the spring pushes the centering positioning plate 4 to reset through elastic force. This elastic connection makes the positioning process buffered and reduces the rigid impact on the tile cover.

[0022] The centering positioning plate 4 is slidably connected to the top of the processing base 1. The inner side is made of wear-resistant alloy material to extend its service life. Its fixed connection with the spring 3 realizes elastic drive. At the same time, it is slidably sleeved on the outer surface of the guide rod 5 at the top of the processing base 1. The guide rod 5 is made of chrome-plated round steel to reduce friction and ensure that the centering positioning plate 4 slides smoothly along a straight line to avoid deviation.

[0023] Motor 6 is fixedly connected to the surface of machining base 1 by bolts. A servo motor is selected to ensure precise and controllable power output. Its output end is fixedly connected to bidirectional screw 7. When motor 6 starts, it transmits rotational power to bidirectional screw 7, driving bidirectional screw 7 to rotate stably at the bottom of machining base 1, providing a power source for the movement of guide block 8.

[0024] The bidirectional screw 7 is rotatably connected to the bottom of the processing base 1. It is made of high-strength alloy steel and has wear-resistant properties. The outer surface thread matches the inner thread of the guide block 8. When rotating, the guide block 8 is driven to slide along the processing base 1 through the thread transmission. The bidirectional thread design enables the two guide blocks 8 to move synchronously in opposite directions or towards each other.

[0025] The guide block 8 is threaded onto the outer surface of the bidirectional screw 7, and its bottom slides in contact with the processing base 1. It is made of wear-resistant cast iron to reduce sliding wear. Its side contacts the corresponding centering positioning plate 4. By sliding itself, it pushes the centering positioning plate 4 to move, thereby achieving precise control of the positioning plate position and indirectly adjusting the centering positioning state of the tile cover.

[0026] The guide rod 5 is fixedly connected to the top of the processing base 1. It is made of high-hardness alloy material to ensure support strength. The centering positioning plate 4 is slidably sleeved on the outer surface of the guide rod 5. The guide rod 5 constrains the movement trajectory of the centering positioning plate 4 to prevent the positioning plate from tilting during the force process and to ensure the straightness and stability of the positioning action.

[0027] The lifting bracket 9 is set on the top of the processing base 1. It adopts a welded steel structure to enhance the load-bearing capacity. The bottom limiting plate 14 is slidably connected to the processing base 1. The limiting plate 14 is made of wear-resistant steel plate to reduce sliding friction. The output end of the second hydraulic cylinder 15 on the surface of the processing base 1 is fixedly connected to the lifting bracket 9, driving the lifting bracket 9 to rise and fall smoothly along the processing base 1.

[0028] The top of the lifting bracket 9 is fixedly connected to the hydraulic cylinder 10, and the output end of the hydraulic cylinder 10 is fixedly connected to the mounting base 11. The hydraulic drive provides stable pressure. The bottom of the mounting base 11 is movably connected to the positioning cover plate 12. The arc-shaped or V-shaped cover plate can be replaced according to the shape of the tile cover. The positioning protrusion 13 on the surface of the lifting bracket 9 cooperates with the positioning cover plate 12 to achieve double fixation of the tile cover and enhance stability.

[0029] Working principle: After the motor 6 starts, it drives the bidirectional screw 7 to rotate, causing the guide block 8, which is threaded onto the outer surface of the bidirectional screw 7, to slide along the processing base 1. The guide block 8 pushes the corresponding centering positioning plate 4 to move. At the same time, the spring 3 on the surface of the side plate 2 is compressed, and the centering positioning plate 4 is moved to both sides of the device. Then, the car bearing cover is placed on top of the positioning protrusion 13, and the guide block 8 is moved in the opposite direction, so that the two guide blocks 8 no longer limit the centering positioning plate 4. Through the spring 3, the centering positioning plate 4 naturally centers the car bearing cover on both sides. After clamping and positioning, the hydraulic cylinder 10 pushes the mounting base 11 down, so that the positioning cover plate 12 at the bottom of the mounting base 11 fits against the surface of the tile cover. The positioning protrusion 13 further enhances the fixing effect of the tile cover and prevents the tile cover from shifting or shaking during processing. During adjustment, the centering positioning plate 4 is loosened by the guide block 8. The second hydraulic cylinder 15 is started to drive the lifting bracket 9 to slide up and down along the processing base 1. The limit plate 14 ensures that the lifting bracket 9 rises and falls smoothly. The lifting bracket 9 is adjusted to a suitable height, and the centering positioning plate 4 is repositioned. Example 1

[0030] When processing a tile cover with an arc-shaped top surface, the positioning cover plate 12 at the bottom of the mounting base 11 is replaced with an arc-shaped cover plate. The curvature of the inner surface of the arc-shaped cover plate matches the top surface of the tile cover. The mounting base 11 is pushed down by the hydraulic cylinder 10 so that the arc-shaped cover plate is completely attached to the surface of the tile cover, and forms a ring-shaped fixation with the positioning protrusion 13. If the top of the tile cover being processed has an edge structure, the positioning cover plate 12 is replaced with a V-shaped cover plate. The angle of the V-shaped groove matches the angle of the edge of the tile cover. During the descent, the two side walls of the V-shaped cover plate are precisely engaged with the edge of the tile cover. The principle of triangle stability is used to enhance the lateral positioning effect and prevent the tile cover from shifting laterally during processing. When replacing the positioning cover plate 12, the old cover plate can be quickly removed through the movable connection structure at the bottom of the mounting base 11. After the new cover plate is installed, its relative position with the positioning protrusion 13 needs to be checked to ensure that the force of the two on the tile cover is evenly distributed. The replacement of positioning cover plates of different shapes can meet the positioning needs of diverse tile cover structures. Example 2

[0031] When the motor 6 starts to rotate forward in the initial positioning stage, it drives the two guide blocks 8 to move towards each other through the bidirectional screw 7. The guide blocks 8 push the central positioning plate 4 to compress the spring 3, reserving space for the tile cover to be placed. At this time, the motor 6 plays the role of driving the positioning plate to open, making it easier for manual or robotic arm to place the tile cover. After the tile cover is placed, the motor 6 reverses to make the bidirectional screw 7 rotate in the opposite direction. The guide block 8 moves in the opposite direction to release the pushing force on the centering positioning plate 4. The spring 3 releases its elastic potential energy to pull the centering positioning plate 4 back to its original position. At this time, the spring 3 achieves automatic centering and clamping of the tile cover through its elastic force, and can maintain the positioning state without additional power. The guide rod 5 constrains the trajectory of the centering positioning plate 4 during its movement, preventing the positioning plate from shifting and causing the tile cover to become misaligned. When the tile cover is subjected to processing force, the guide rod 5 also provides a supporting reaction force for the centering positioning plate 4 to resist the lateral force during processing, ensuring that the positioning stability is not affected by the processing force. The lifting bracket 9 is lifted and lowered under the drive of the second hydraulic cylinder 15, and the distance between the positioning cover plate 12 and the processing base 1 can be adjusted to meet the positioning requirements of tile covers of different thicknesses. At the same time, the lifting bracket 9 serves as the mounting carrier of the hydraulic cylinder 10, transmitting hydraulic power to the positioning cover plate 12 to achieve vertical fixation of the tile cover. Example 3

[0032] In the scenario of small-batch, multi-variety tile cover processing, the start motor 6 causes the guide block 8 to move the centering positioning plate 4 to the maximum opening state. The manual places the tile covers of different specifications one by one on the processing base 1. The control motor 6 reverses to drive the spring 3 to drive the centering positioning plate 4 to adaptively clamp the tile covers. By changing the positioning cover plate 12 to adapt to different shaped tile covers, the positioning is completed and then the processing is carried out. In the scenario of mass standardized tile cover processing, the position of the guide block 8 is adjusted in advance by the motor 6 and the bidirectional screw 7, the fixed clamping distance of the centering positioning plate 4 is set, the second hydraulic cylinder 15 is started to adjust the lifting bracket 9 to the appropriate height, and after the tile cover is transported to the processing base 1 by the conveyor belt, the centering positioning plate 4 is automatically clamped and positioned, and the hydraulic cylinder 10 drives the positioning cover plate 12 to press down and fix quickly, so as to realize continuous automated positioning processing, reduce manual intervention and improve efficiency. Both scenarios rely on a drive structure consisting of a motor 6, a bidirectional screw 7, and a guide block 8 to adjust the position of the positioning plate. The spring 3 achieves elastic clamping, and the lifting bracket 9 and hydraulic cylinder 10 complete vertical fixation. The processing needs of different production scales can be met simply by adjusting the operation process and preset parameters.

[0033] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A positioning mechanism for processing of an automotive bearing pad cover, characterized by, include: Processing base (1); The centering positioning mechanism includes a side plate (2), a spring (3), a centering positioning plate (4), a motor (6), a bidirectional screw (7), and a guide block (8). The side plate (2) is fixedly connected to the top of the processing base (1). There are two side plates (2) located on both sides of the processing base (1). There are multiple springs (3) fixedly connected to the surface of the side plate (2). The number of centering positioning plates (4) is the same as that of the side plates (2) and they are all slidably connected to the top of the processing base (1). The centering positioning plate (4) is fixedly connected to the spring (3), the motor (6) is fixedly connected to the surface of the processing base (1), the bidirectional screw (7) is rotatably connected to the bottom of the processing base (1), the bidirectional screw (7) is fixedly connected to the output end of the motor (6), the guide block (8) is threaded onto the outer surface of the bidirectional screw (7), the guide block (8) is slidably connected to the processing base (1), the number of guide blocks (8) is the same as that of the centering positioning plate (4) and they are in contact with the corresponding centering positioning plate (4).

2. A locating mechanism for machining of automotive bearing shell covers as claimed in claim 1, wherein: The top of the processing base (1) is fixedly connected with multiple guide rods (5), and the central positioning plate (4) is slidably sleeved on the outer surface of the guide rods (5).

3. A locating mechanism for the machining of a bearing shell cover for a vehicle as claimed in claim 1 or 2, characterized in that: The top of the processing base (1) is provided with a lifting bracket (9), which is C-shaped. A hydraulic cylinder (10) is fixedly connected to the top of the lifting bracket (9), and a mounting base (11) is fixedly connected to the output end of the hydraulic cylinder (10).

4. A locating mechanism for machining of an automotive bearing shell cover as claimed in claim 3, wherein: The bottom of the mounting base (11) is movably connected to a positioning cover plate (12), and the lower part of the lifting bracket (9) is fixedly connected to a positioning protrusion plate (13).

5. A locating mechanism for machining of an automotive bearing shell cover as claimed in claim 4, wherein: The positioning cover plate (12) is an arc-shaped cover plate.

6. A locating mechanism for machining of automotive bearing shell covers as claimed in claim 4, wherein: The positioning cover plate (12) is a V-shaped cover plate.

7. A positioning mechanism for machining of an automotive bearing shell cover as claimed in claim 3, wherein: The surface of the processing base (1) is fixedly connected to a second hydraulic cylinder (15), and the output end of the second hydraulic cylinder (15) is fixedly connected to the bottom of the lifting bracket (9).

8. A positioning mechanism for machining of an automotive bearing shell cover as claimed in claim 4, wherein: The bottom of the lifting bracket (9) is fixedly connected to a limiting plate (14), and the limiting plate (14) is slidably connected to the processing base (1).

Images