A press-fitting device for deep groove ball bearing production

Abstract

The utility model belongs to bearing production technical field especially relates to a kind of press-fitting device for deep groove ball bearing production, it includes: bottom plate, the top four corners of bottom plate are fixedly connected with stand, the top of four stand is fixedly connected with same top plate, the top of top plate is fixedly installed with hydraulic push rod;Shell, the shell is fixedly installed on the output end of hydraulic push rod, the inner wall top of shell is fixedly installed with motor;Mobile assembly, the mobile assembly is set inside shell, and for moving four briquettes, above structure is set, and the pressure acting position is accurately controlled to the inside and outside ring difference, ensure that the press-fitting force is accurately, uniformly acted on the entire end face of bearing sleeve ring needing to be pressed in, to avoid press-fitting force error transmission through rolling element completely, fundamentally prevent the raceway indentation, cage deformation or sealing element damage caused by improper stress, and then facilitate staff use.

Description

Technical Field

[0001] This utility model belongs to the field of bearing manufacturing technology, and in particular relates to a press-fitting device for the production of deep groove ball bearings. Background Technology

[0002] Deep groove ball bearing press fitting is an assembly process that uses pressure equipment (such as hydraulic presses, press fitting machines, etc.) to evenly and smoothly press the bearing into the shaft or bearing housing bore, achieving a tight connection between the bearing and the shaft or housing through interference fit. During press fitting, it is necessary to control the pressure to be moderate and the direction to be vertical to avoid tilting or impact damage to the bearing raceway and cage, ensuring that the bearing rotates flexibly and is positioned accurately after installation. It is widely used in fields requiring high-precision rotational support, such as motors, automobiles, and home appliances, and is one of the key processes to ensure the long-term stable operation of bearings.

[0003] Most existing press-fitting devices use fixed pressure blocks and rely on hydraulic or pneumatic push rods to apply pressure directly to complete the assembly. Due to the difference in diameter between the inner and outer ring flanges of the deep groove ball bearing, the fixed pressure block is prone to pressure application position deviation during operation: when pressing the inner ring, the pressure may be mistakenly applied to the flange instead of the end face, causing deformation of the inner ring; when pressing the outer ring, the pressure block is prone to interference with the flange, causing assembly misalignment, which is not conducive to the use of operators. In view of this, we propose a press-fitting device for the production of deep groove ball bearings. Utility Model Content

[0004] The purpose of this invention is to provide a press-fitting device for the production of deep groove ball bearings, so as to solve the problems mentioned in the background art.

[0005] In view of this, the present invention provides a press-fitting device for the production of deep groove ball bearings, comprising: A base plate, with columns fixedly connected to the top four corners of the base plate, and the top of the four columns fixedly connected to the same top plate. A hydraulic push rod is fixedly installed on the top of the top plate, and the hydraulic push rod extends through to the bottom of the top plate. The housing is fixedly mounted on the output end of the hydraulic push rod. A motor is fixedly mounted on the top of the inner wall of the housing. A rotating shaft is fixedly connected to the output end of the motor. Four circumferentially distributed pressure blocks are provided at the bottom of the housing. A movable component is disposed inside the housing and is used to move four pressure blocks.

[0006] In this technical solution, the hydraulic push rod is activated, pushing the housing downward along the column and slide bar. The pressure block gradually approaches the deep groove ball bearing workpiece to be pressed. The motor is started, the shaft rotates, and the rotating plate rotates synchronously. Through the set moving component, the moving block can be driven to slide in the through groove at the bottom of the housing. The moving block drives the pressure block to move radially. At the same time, the slider at the top of the inner wall of the housing slides in the slide groove. The third connecting shaft connects the slider to the top of the connecting plate to ensure the smooth movement of the connecting plate.

[0007] To address the different requirements of the inner and outer rings, the motor adjusts the rotation angle of the rotating plate: when pressing the inner ring, the moving component is activated to radially retract the pressing block to a diameter slightly smaller than the inner ring flange diameter, concentrating the pressure on the inner ring end face; when pressing the outer ring, the rotating plate rotates in the opposite direction, and the pressing block radially expands to a diameter slightly larger than the outer ring flange diameter, concentrating the pressure on the outer ring end face. Through the above structure, the pressure application position is precisely controlled according to the difference between the inner and outer rings, ensuring that the pressing force is accurately and evenly applied to the entire end face of the bearing ring to be pressed in. This completely avoids the pressing force being mistakenly transmitted through the rolling elements, fundamentally preventing raceway indentations, cage deformation, or seal damage caused by improper force application, thus facilitating operation for staff.

[0008] In the above technical solution, further, two symmetrically distributed sliding rods are fixedly connected between the bottom plate and the top plate, and sliding blocks are slidably installed on the outside of the two sliding rods, and the two sliding blocks are respectively fixedly connected to both sides of the shell.

[0009] In this technical solution, the housing is made more stable when it moves by sliding the sliding block on the outside of the slide rod.

[0010] In the above technical solution, the bottom of the housing is provided with four circumferentially distributed through slots, and the top of each of the four pressure blocks is fixedly connected with a movable block. The four movable blocks are slidably installed inside the four through slots, and the top of each of the four movable blocks is rotatably installed with the same second connecting shaft.

[0011] In this technical solution, the movable block is slidably installed inside the through groove, which ensures that the movable block always maintains horizontal movement.

[0012] In the above technical solution, the moving component further includes a rotating plate, the rotating plate is fixedly connected to the bottom of the rotating shaft, and a first connecting shaft is rotatably installed at each of the four corners of the bottom of the rotating plate. A connecting plate is fixedly connected to the bottom of each of the four first connecting shafts, and the first connecting shaft and the second connecting shaft are fixedly connected by the same connecting plate.

[0013] In this technical solution, the rotating plate is driven to rotate synchronously by the rotating shaft. The first connecting shaft at the four corners of the bottom of the rotating plate is hinged to the upper end of the connecting plate. The lower end of the connecting plate is hinged to the top of the moving block through the second connecting shaft, thereby driving the moving block to slide in the through groove at the bottom of the housing. The moving block drives the pressure block to move radially.

[0014] In the above technical solution, the top of the inner wall of the housing is provided with four circumferentially distributed sliding grooves, and a slider is slidably installed inside each of the four sliding grooves.

[0015] In this technical solution, the slider always slides along the groove, and the third connecting shaft moves in conjunction with the connecting plate to ensure the stability and accuracy of the pressure block movement.

[0016] In the above technical solution, furthermore, the bottom of the four sliders is rotatably connected to a third connecting shaft, and the bottom of the four third connecting shafts is rotatably mounted on the top of the connecting plate.

[0017] In this technical solution, the slider and the connecting plate can be connected by a third connecting shaft.

[0018] In the above technical solution, a mounting base is further fixedly installed on the top of the base plate.

[0019] In this technical solution, the bearing can be installed using the provided mounting bracket.

[0020] The beneficial effects of this utility model are: 1. Start the hydraulic push rod to push the housing downward along the column and slide bar. The pressure block gradually approaches the deep groove ball bearing workpiece to be pressed. Start the motor, the rotating shaft rotates, and drives the rotating plate to rotate synchronously. Through the set moving component, the moving block can be driven to slide in the through groove at the bottom of the housing. The moving block drives the pressure block to move radially. At the same time, the slider at the top of the inner wall of the housing slides in the slide groove. The third connecting shaft connects the slider to the top of the connecting plate to ensure the smooth movement of the connecting plate.

[0021] 2. To address the different requirements of the inner and outer rings, the rotation angle of the rotating plate is adjusted by the motor: When pressing the inner ring, the moving component is activated to radially retract the pressing block to a diameter slightly smaller than the inner ring flange diameter, concentrating the pressure on the inner ring end face; when pressing the outer ring, the rotating plate rotates in the opposite direction, and the pressing block radially expands to a diameter slightly larger than the outer ring flange diameter, concentrating the pressure on the outer ring end face. Through the above structure, the pressure application position is precisely controlled according to the difference between the inner and outer rings, ensuring that the pressing force is accurately and evenly applied to the entire end face of the bearing ring to be pressed in. This completely avoids the pressing force being mistakenly transmitted through the rolling elements, fundamentally preventing raceway indentations, cage deformation, or seal damage caused by improper force application, thus facilitating operation by staff. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the overall structure of this utility model; Figure 3 This is a schematic diagram of the shell structure in this utility model; Figure 4 This is a cross-sectional view of the shell structure in this utility model; Figure 5 This is one of the schematic diagrams of the internal structure of the shell in this utility model; Figure 6 This is the second schematic diagram of the internal structure of the shell in this utility model.

[0023] The markings in the diagram are as follows: 1. Base plate; 2. Column; 3. Top plate; 4. Hydraulic push rod; 5. Housing; 6. Slide rod; 7. Sliding block; 8. Mounting base; 9. Motor; 10. Rotating shaft; 11. Rotating plate; 12. First connecting shaft; 13. Connecting plate; 14. Second connecting shaft; 15. Moving block; 16. Through groove; 17. Pressure block; 18. Slide groove; 19. Third connecting shaft; 20. Slider. Detailed Implementation

[0024] The following is in conjunction with the appendix Figures 1-6 This application will be described in further detail.

[0025] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0026] Example 1: This example provides a press-fitting device for deep groove ball bearing production, comprising: The base plate 1 has columns 2 fixedly connected to the top four corners of the base plate 1. The top of the four columns 2 is fixedly connected to the same top plate 3. A hydraulic push rod 4 is fixedly installed on the top of the top plate 3, and the hydraulic push rod 4 extends through to the bottom of the top plate 3. The housing 5 is fixedly installed on the output end of the hydraulic push rod 4. The top of the inner wall of the housing 5 is fixedly installed with a motor 9. The output end of the motor 9 is fixedly connected to a rotating shaft 10. The bottom of the housing 5 is provided with four circumferentially distributed pressure blocks 17. The movable component is located inside the housing 5 and is used to move the four pressure blocks 17.

[0027] In this process, the hydraulic push rod 4 is activated, which pushes the housing 5 downward along the column 2 and the slide rod 6. The pressure block 17 gradually approaches the deep groove ball bearing workpiece to be pressed. The motor 9 is activated, and the rotating shaft 10 rotates, driving the rotating plate 11 to rotate synchronously. Through the set moving component, the moving block 15 can be driven to slide in the through groove 16 at the bottom of the housing 5. The moving block 15 drives the pressure block 17 to move radially. At the same time, the slider 20 at the top of the inner wall of the housing 5 slides in the slide groove 18. The third connecting shaft 19 connects the slider 20 to the top of the connecting plate 13 to ensure that the movement of the connecting plate 13 is stable.

[0028] To address the different needs of the inner and outer rings, the motor 9 adjusts the rotation angle of the rotating plate 11: when pressing the inner ring, the moving component is activated to radially retract the pressing block 17 to a diameter slightly smaller than the inner ring flange diameter, concentrating the pressure on the inner ring end face; when pressing the outer ring, the rotating plate 11 rotates in the opposite direction, and the pressing block 17 radially expands to a diameter slightly larger than the outer ring flange diameter, concentrating the pressure on the outer ring end face. Through the above structure, the pressure application position is precisely controlled according to the difference between the inner and outer rings, ensuring that the pressing force is accurately and evenly applied to the entire end face of the bearing ring to be pressed in, thereby completely avoiding the pressing force being mistakenly transmitted through the rolling elements, fundamentally preventing raceway indentations, cage deformation, or seal damage caused by improper force application, and thus facilitating the use by operators.

[0029] Example 2: This example provides a press-fitting device for deep groove ball bearing production. In addition to the technical solution of the above example, it also has the following technical features: two symmetrically distributed slide rods 6 are fixedly connected between the bottom plate 1 and the top plate 3. Sliding blocks 7 are slidably installed on the outside of the two slide rods 6. The two sliding blocks 7 are fixedly connected to both sides of the housing 5 respectively.

[0030] The sliding block 7 is slidably mounted on the outside of the slide rod 6, which makes the housing 5 more stable when moving.

[0031] Example 3: This example provides a press-fitting device for deep groove ball bearing production. In addition to the technical solutions of the above examples, it also has the following technical features: the bottom of the housing 5 is provided with four circumferentially distributed through grooves 16, the top of each of the four pressing blocks 17 is fixedly connected with a moving block 15, the four moving blocks 15 are slidably installed inside the four through grooves 16, and the top of each of the four moving blocks 15 is rotatably installed with the same second connecting shaft 14.

[0032] The movable block 15 is slidably installed inside the through groove 16, which ensures that the movable block 15 always maintains horizontal movement.

[0033] Example 4: This example provides a press-fitting device for deep groove ball bearing production. In addition to the technical solutions of the above examples, it also has the following technical features: the moving component includes a rotating plate 11, which is fixedly connected to the bottom of the rotating shaft 10. A first connecting shaft 12 is rotatably installed at each of the four corners of the bottom of the rotating plate 11. A connecting plate 13 is fixedly connected to the bottom of each of the four first connecting shafts 12. The same connecting plate 13 is fixedly connected between the first connecting shaft 12 and the second connecting shaft 14.

[0034] The rotating plate 11 is driven to rotate synchronously by the rotating shaft 10. The first connecting shaft 12 at the four corners of the bottom of the rotating plate 11 is hinged to the upper end of the connecting plate 13. The lower end of the connecting plate 13 is hinged to the top of the moving block 15 through the second connecting shaft 14, thereby driving the moving block 15 to slide in the through groove 16 at the bottom of the housing 5. The moving block 15 drives the pressure block 17 to move radially.

[0035] Example 5: This example provides a press-fitting device for deep groove ball bearing production. In addition to the technical solutions of the above examples, it also has the following technical features: four circumferentially distributed sliding grooves 18 are opened on the top of the inner wall of the housing 5, and sliders 20 are slidably installed inside the four sliding grooves 18.

[0036] The slider 20 always slides along the slide groove 18, and the third connecting shaft 19 moves in conjunction with the connecting plate 13 to ensure the stability and accuracy of the movement of the pressure block 17.

[0037] Example 6: This example provides a press-fitting device for deep groove ball bearing production. In addition to the technical solutions of the above examples, it also has the following technical features: the bottom of the four sliders 20 is rotatably connected to a third connecting shaft 19, and the bottom of the four third connecting shafts 19 is rotatably mounted on the top of the connecting plate 13.

[0038] The slider 20 can be connected to the connecting plate 13 via the third connecting shaft 19.

[0039] Example 7: This example provides a press-fitting device for deep groove ball bearing production. In addition to the technical solutions of the above examples, it also has the following technical features: a mounting base 8 is fixedly installed on the top of the base plate 1.

[0040] The bearing can be installed using the mounting bracket 8.

[0041] Working principle: In the initial state, the hydraulic push rod 4 is activated, and its output end pushes the housing 5 to move downward along the column 2 and slide rod 6. The pressure block 17 at the bottom of the housing 5 gradually approaches the deep groove ball bearing workpiece to be pressed. At the same time, the motor 9 is activated, and the output end of the motor 9 drives the rotating shaft 10 to rotate. The rotating shaft 10 drives the rotating plate 11 to rotate synchronously. The first connecting shaft 12 at the four corners of the bottom of the rotating plate 11 is hinged to the upper end of the connecting plate 13. The lower end of the connecting plate 13 is hinged to the top of the moving block 15 through the second connecting shaft 14, thereby driving the moving block 15 to slide in the through groove 16 at the bottom of the housing 5. The moving block 15 drives the pressure block 17 to move radially. At the same time, the slider 20 at the top of the inner wall of the housing 5 slides in the slide groove 18. The third connecting shaft 19 connects the slider 20 to the top of the connecting plate 13 to ensure that the movement of the connecting plate 13 is smooth.

[0042] During press fitting, the hydraulic push rod 4 continuously applies pressure, and the pressure block 17 applies pressure to the workpiece to complete the assembly. To address the different requirements of the inner and outer rings, the motor 9 adjusts the rotation angle of the rotating plate 11: When pressing the inner ring, the rotating plate 11 drives the first connecting shaft 12, which in turn pulls the second connecting shaft 14 through the connecting plate 13, causing the moving block 15 to slide within the through groove 16. The pressing block 17 radially contracts to a diameter slightly smaller than the inner ring flange diameter, concentrating the pressure on the inner ring end face. When pressing the outer ring, the rotating plate 11 rotates in the opposite direction, and the pressing block 17 radially expands to a diameter slightly larger than the outer ring flange diameter, concentrating the pressure on the outer ring end face. The slider 20 always slides along the slide groove 18, and the third connecting shaft 19 moves in coordination with the connecting plate 13, ensuring the stability and accuracy of the pressing block 17's movement. Through the above structure, the pressure application position is precisely controlled according to the differences between the inner and outer rings, ensuring that the pressing force is accurately and evenly applied to the entire end face of the bearing ring to be pressed in. This completely avoids the pressing force being mistakenly transmitted through the rolling elements, fundamentally preventing raceway indentations, cage deformation, or seal damage caused by improper force application, thus facilitating operation for staff.

[0043] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A press-fitting device for producing deep groove ball bearings, characterized in that, include: The base plate (1) has columns (2) fixedly connected to the top four corners of the base plate (1), and the top of the four columns (2) is fixedly connected to the same top plate (3). The top of the top plate (3) is fixedly installed with a hydraulic push rod (4), and the hydraulic push rod (4) extends through to the bottom of the top plate (3). The housing (5) is fixedly installed on the output end of the hydraulic push rod (4). A motor (9) is fixedly installed on the top of the inner wall of the housing (5). A rotating shaft (10) is fixedly connected to the output end of the motor (9). Four circumferentially distributed pressure blocks (17) are provided at the bottom of the housing (5). A movable component is disposed inside the housing (5) and is used to move four pressure blocks (17).

2. The press-fitting device for deep groove ball bearing production according to claim 1, characterized in that, Two symmetrically distributed sliding rods (6) are fixedly connected between the bottom plate (1) and the top plate (3). Sliding blocks (7) are slidably installed on the outside of the two sliding rods (6). The two sliding blocks (7) are fixedly connected to both sides of the shell (5).

3. The press-fitting device for deep groove ball bearing production according to claim 1, characterized in that, The bottom of the housing (5) is provided with four circumferentially distributed through slots (16), and the top of each of the four pressure blocks (17) is fixedly connected with a moving block (15). The four moving blocks (15) are slidably installed inside the four through slots (16), and the top of each of the four moving blocks (15) is rotatably installed with the same second connecting shaft (14).

4. The press-fitting device for deep groove ball bearing production according to claim 1, characterized in that, The moving component includes a rotating plate (11), which is fixedly connected to the bottom of the rotating shaft (10). A first connecting shaft (12) is rotatably installed at each of the four corners of the bottom of the rotating plate (11). A connecting plate (13) is fixedly connected to the bottom of each of the four first connecting shafts (12). The same connecting plate (13) is fixedly connected between the first connecting shaft (12) and the second connecting shaft (14).

5. The press-fitting device for deep groove ball bearing production according to claim 4, characterized in that, The top of the inner wall of the housing (5) is provided with four circumferentially distributed sliding grooves (18), and a slider (20) is slidably installed inside each of the four sliding grooves (18).

6. The press-fitting device for deep groove ball bearing production according to claim 5, characterized in that, The bottom of each of the four sliders (20) is rotatably connected to a third connecting shaft (19), and the bottom of each of the four third connecting shafts (19) is rotatably mounted on the top of the connecting plate (13).

7. The press-fitting device for deep groove ball bearing production according to claim 1, characterized in that, The top of the base plate (1) is fixedly installed with a mounting base (8).

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