Bearing assembling equipment

Abstract

The utility model discloses bearing assembling equipment, which relates to the technical field of bearing processing and comprises a base, a support frame, a top plate, a hydraulic push rod and an auxiliary plate, and a first electric clamping jaw for clamping an outer ring of a bearing is mounted on the base; a hydraulic push rod is arranged below the top plate; the output end of the hydraulic push rod is connected with a second electric clamping jaw for clamping the end part of the iron core; the auxiliary plate is slidably arranged on the supporting frame, a fixing through hole is formed in the center for iron cores to pass through, a plurality of electric push rods are symmetrically distributed at the top and the bottom, a fixing head is arranged at the output end of each push rod, a rotatable ball is installed at the tail end, and the balls are driven by the electric push rods to be pushed in the radial direction to adapt to clamping of the iron cores of different sizes. A detachable auxiliary assembly is arranged on the front side of the auxiliary plate and used for separating the assembled bearing and iron core; according to the utility model, after the end part of the iron core is fixed by the second electric clamping jaw, the middle section of the iron core is clamped by adopting a symmetrical ball clamping structure, so that the iron core is vertical, and accurate positioning between the iron core and a bearing is realized.

Description

Technical Field

[0001] This utility model relates to the field of bearing processing technology, specifically a bearing assembly device. Background Technology

[0002] Bearings are an important component in modern mechanical equipment. Their main function is to support rotating mechanical bodies, reduce the coefficient of friction during their movement, and ensure their rotational accuracy. In bearing manufacturing, the bearing core needs to be assembled.

[0003] Publication No. CN214404400U discloses a bearing core assembly device, including a base plate. Lifting cylinders are installed at both ends of the top of the base plate. The output end of the lifting cylinder is connected to the top plate through a piston rod. A steering motor is installed in the middle of the top of the top plate. The output end of the steering motor passes through the top plate and is connected to a fixed plate. An electric gripper is installed at the bottom of the fixed plate. A fixed frame is fixed in the middle of the top of the base plate by bolts. A servo motor is installed on the fixed frame. The top of the servo motor passes through the fixed frame and is connected to a disc. Through holes are opened at equal angles on the disc. A placement plate is set at the top of the disc at the through hole. A fixed cylinder is installed inside the disc at the bottom of the through hole. A supporting inner tube is installed at the bottom of the inner wall of the fixed cylinder. A buffer spring is sleeved on the outside of the supporting inner tube. A supporting sleeve is snapped to the top of the supporting inner tube. The top of the supporting sleeve is connected to the bottom of the placement plate.

[0004] During use, the above-mentioned device uses electric grippers to hold the upper end of the iron core and insert the lower end into the outer ring of the bearing. However, when the iron core is long, it is difficult to resist the swing caused by gravity or inertia when only one end is clamped, resulting in end displacement and affecting positioning accuracy. Therefore, we propose a bearing assembly device. Utility Model Content

[0005] This invention addresses the shortcomings of existing technologies by providing a bearing assembly device that uses a symmetrical ball bearing clamping structure to assist in clamping the middle section of the iron core, thereby ensuring precise positioning between the iron core and the bearing.

[0006] In order to solve the above-mentioned technical problems, the present invention solves the problem that when the iron core is long, it is difficult to resist the swing caused by gravity or inertia when only one end is clamped, resulting in end offset and affecting positioning accuracy through the following technical solution.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A bearing assembly device includes: a base, on which a first electric gripper for clamping the outer ring of a bearing is fixedly mounted; a support frame, vertically fixed to the base; a top plate, fixed to the top of the support frame; a hydraulic push rod, fixedly mounted inside the top plate, the output end of which is fixedly connected to a second electric gripper for clamping the end of an iron core; an auxiliary plate, slidably disposed on the support frame, the auxiliary plate having a fixed through hole in its center for the iron core to pass through; multiple electric push rods, evenly fixedly distributed on the top and bottom of the auxiliary plate, each electric push rod having a fixed head at its output end, the end of the fixed head being rotatably mounted with a ball bearing contacting the outer wall of the iron core, the ball bearing being driven radially by the electric push rod to adapt to iron cores of different sizes; and an auxiliary component, detachably connected to the front side of the auxiliary plate, for separating the assembled bearing from the iron core.

[0009] Preferably, the electric push rods at the top and bottom of the auxiliary plate are symmetrically distributed around the through hole, and the balls at the top and bottom together form a radial clamping structure for the iron core.

[0010] Preferably, the auxiliary component includes a reinforcing plate with a rectangular opening on the front side, and the reinforcing plate is inserted into the opening; extension plates are fixedly provided on the upper and lower sides of the reinforcing plate, with a first auxiliary hole on the extension plate and a corresponding second auxiliary hole on the auxiliary plate, and a pin is provided in the first auxiliary hole, and the first auxiliary hole and the second auxiliary hole are fixedly connected by the pin.

[0011] Preferably, vertical screws are symmetrically arranged on both sides of the support frame. The screws are rotatably connected to the base and the top plate, and pass through the auxiliary plate and are threadedly engaged with it. Two independently driven drive motors are installed on the top plate. The output shaft of each drive motor is coaxially connected to the corresponding screw to control the lifting and lowering of the auxiliary plate.

[0012] Preferably, both the first and second electric grippers have built-in pressure sensors (not shown in the figures), and the gripping surfaces are provided with anti-slip textures (not shown in the figures).

[0013] Preferably, the ball surface is coated with a silicon nitride wear-resistant layer (not shown in the figure).

[0014] Preferably, the drive motor is a servo motor, and the lifting and lowering movements of the screws on both sides are synchronized through independent control.

[0015] Preferably, an emergency stop button is provided on the side wall of the base for emergency stopping of the equipment.

[0016] Preferably, the fixing head includes a fixing cylinder and a mounting head. The fixing cylinder is fixed to the output end of the electric push rod. The ball is rotatably disposed inside the mounting head. A limiting shaft is slidably disposed inside the fixing cylinder. The outer end of the limiting shaft is fixed to the side of the mounting head away from the ball. A compression spring is fixed to the inner end of the limiting shaft. The compression spring is fixed inside the fixing cylinder to reduce the impact on the iron core during clamping.

[0017] Preferably, the sliding stroke of the auxiliary plate is fed back in real time by the encoder of the drive motor (not shown in the figure) to precisely control the lifting position.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] This utility model sets an auxiliary plate with a central through hole in the support frame, and sets electric push rods and fixed heads distributed around the center of the through hole on the auxiliary plate. The electric push rods drive all the fixed heads to move synchronously, clamping and limiting the middle section of the iron core to ensure the verticality of the iron core. This ensures the verticality of the stroke when the iron core moves down with the second electric gripper, thereby ensuring the positioning accuracy between the iron core and the bearing.

[0020] By setting an opening on the auxiliary plate, the product can be taken out directly from the opening after the iron core and bearing are assembled, which is convenient and quick. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the top structure of the auxiliary plate part of this utility model;

[0024] Figure 3 This is a schematic diagram of the bottom structure of the auxiliary plate part of this utility model;

[0025] Figure 4 This is a schematic diagram of the auxiliary component structure of this utility model;

[0026] Figure 5 This is a schematic diagram of the ball bearing distribution of this utility model;

[0027] Figure 6 This is a partial cross-sectional view of the fixing head portion of this utility model.

[0028] Drawing number descriptions: 1. Base; 2. First electric gripper; 3. Support frame; 4. Top plate; 5. Hydraulic push rod; 6. Second electric gripper; 7. Auxiliary plate; 8. Through hole; 9. Electric push rod; 10. Fixed head; 11. Ball bearing; 12. Auxiliary component; 13. Reinforcing plate; 14. Opening; 15. Extension plate; 16. First auxiliary hole; 17. Second auxiliary hole; 18. Pin; 19. Screw; 20. Drive motor; 21. Emergency stop button; 22. Fixed cylinder; 23. Mounting head; 24. Limiting shaft; 25. Compression spring. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings. Example

[0030] Please see Figures 1-6 A bearing assembly device includes a base 1, a support frame 3, a top plate 4, a hydraulic push rod 5, and an auxiliary plate 7. An emergency stop button 21 is provided on the side wall of the base 1 for emergency shutdown of the equipment. A first electric gripper 2 for clamping the outer ring of the bearing is installed on the base 1. A hydraulic push rod 5 is located below the top plate 4, with its output end connected to a second electric gripper 6 for clamping the end of the iron core. The auxiliary plate 7 is slidably mounted on the support frame 3, with a fixed through hole 8 in the center for the iron core to pass through. Multiple electric push rods 9 are symmetrically distributed at the top and bottom, each push rod having a fixed head 10 at its output end and a rotatable ball bearing 11 installed at its end. The ball bearing 11 is driven radially by the electric push rod 9 to accommodate clamping iron cores of different sizes. A detachable auxiliary component 12 is provided on the front side of the auxiliary plate 7 for separating the assembled bearing from the iron core. After the end of the iron core is fixed by the second electric gripper 6, the device uses a symmetrical ball bearing 11 clamping structure to clamp the middle section of the iron core, thereby ensuring the verticality of the iron core and achieving precise positioning between the iron core and the bearing.

[0031] The following describes some embodiments of this application in detail with reference to the accompanying drawings:

[0032] Please see Figures 1-6 By setting an auxiliary plate 7 with a through hole 8 in the center inside the support frame 3, and setting electric push rods 9 and fixed heads 10 distributed around the center of the through hole 8 on the auxiliary plate 7, the electric push rods 9 drive all the fixed heads 10 to move synchronously, clamping and limiting the middle section of the iron core, ensuring the verticality of the iron core, and thus ensuring the verticality of the stroke when the iron core moves down with the second electric gripper 6, thereby ensuring the positioning accuracy between the iron core and the bearing.

[0033] Among them, the electric push rods 9 at the top and bottom of the auxiliary plate 7 are symmetrically distributed with the through hole 8 as the center, and the ball bearings 11 at the top and bottom together form a radial clamping structure for the iron core. The electric push rods 9 and the fixing head 10 symmetrically distributed at the top and bottom of the auxiliary plate 7 can clamp the iron core at two parts at the same time on the outside of the iron core, ensuring the vertical state of the iron core after clamping and fixing.

[0034] Furthermore, the auxiliary component 12 includes a reinforcing plate 13. The front side of the auxiliary plate 7 has a rectangular opening 14. The reinforcing plate 13 is inserted into the opening 14. By setting the opening 14 on the auxiliary plate 7, the product can be directly taken out from the opening 14 after the iron core and bearing are assembled, which is convenient and quick. The upper and lower sides of the reinforcing plate 13 are fixedly provided with extension plates 15. The extension plates 15 have a first auxiliary hole 16. The auxiliary plate 7 has a corresponding second auxiliary hole 17. The first auxiliary hole 16 is provided with a pin 18. The first auxiliary hole 16 and the second auxiliary hole 17 are fixedly connected by the pin 18. By setting the reinforcing plate 13 fixed by the pin 18 at the opening 14, the opening 14 is closed by the reinforcing plate 13. At the same time, the two sides of the opening 14 are connected by the reinforcing plate 13 to ensure the strength of the auxiliary plate 7.

[0035] Meanwhile, vertical screws 19 are symmetrically arranged on both sides of the support frame 3. The screws 19 are rotatably connected to the base 1 and the top plate 4, and pass through the auxiliary plate 7 and are threadedly engaged with it. Two independently driven drive motors 20 are installed on the top plate 4. The output shaft of each drive motor 20 is coaxially connected to the corresponding screw 19 to control the lifting and lowering of the auxiliary plate 7. The drive motors 20 are servo motors, and the lifting and lowering movements of the screws 19 on both sides are synchronized through independent control. Furthermore, the sliding stroke of the auxiliary plate 7 is fed back in real time by the encoder of the drive motor 20 to accurately control the lifting and lowering position. The drive motors 20 drive the two screws 19 to rotate synchronously, thereby driving the auxiliary plate 7 to lift and lower, adjusting the auxiliary plate 7 to a suitable position, so as to facilitate the stable clamping of the iron core.

[0036] In addition, both the first electric gripper 2 and the second electric gripper 6 have built-in pressure sensors, and the gripping surfaces are provided with anti-slip textures, which improves the gripping effect of the first electric gripper 2 and the second electric gripper 6. At the same time, the built-in pressure sensors can prevent over-gripping of the iron core and bearing.

[0037] It is worth noting that the surface of ball 11 is coated with a silicon nitride wear-resistant layer to reduce friction;

[0038] Meanwhile, the fixing head 10 includes a fixing cylinder 22 and a mounting head 23. The fixing cylinder 22 is fixed to the output end of the electric push rod 9. The ball 11 is rotatably disposed inside the mounting head 23. A limiting shaft 24 is slidably disposed inside the fixing cylinder 22. The outer end of the limiting shaft 24 is fixed to the side of the mounting head 23 away from the ball 11. A compression spring 25 is fixed to the inner end of the limiting shaft 24. The compression spring 25 is fixed inside the fixing cylinder 22 to reduce the impact on the iron core during clamping. The mounting head 23 is movably connected to the fixing cylinder 22 through the compression spring 25. The presence of the compression spring 25 can reduce the impact on the iron core during clamping.

[0039] The assembly functions of the device are explained below:

[0040] The bearing is placed in the first electric gripper 2 for clamping and fixing. The iron core is placed in the through hole 8. The fixing head 10 is driven to move toward the iron core by the electric push rod 9. The rollers 11 at the top and bottom of the auxiliary plate 7 form a radial clamping of the iron core.

[0041] Then, the top of the iron core is clamped and fixed by the second electric gripper 6;

[0042] Then, the second electric gripper 6 is moved down by the hydraulic push rod 5. During this process, the iron core rolls between the balls 11 until the iron core is pressed into the bearing.

[0043] After assembly, the iron core is released by the electric push rod 9, and then the reinforcing plate 13 is removed from the opening 14 by pulling out the pin 18. After that, the second electric gripper 6 and the first electric gripper 2 are released, and the assembled iron core and bearing can be taken out together from the opening 14.

[0044] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the principles, the implementation of the present invention may have any modifications or variations.

Claims

1. A bearing assembly device, characterized in that, include: A base (1) is fixedly mounted on which a first electric gripper (2) for clamping the outer ring of the bearing is installed. Support frame (3) is vertically fixed on the base (1); top plate (4) is fixed on the top of the support frame (3); hydraulic push rod (5) is fixedly installed in the top plate (4), and its output end is fixedly connected to a second electric gripper (6) for clamping the end of the iron core. An auxiliary plate (7) is slidably mounted on the support frame (3). The auxiliary plate (7) has a fixed through hole (8) in the center for the iron core to pass through. Multiple electric push rods (9) are evenly fixedly distributed on the top and bottom of the auxiliary plate (7). Each electric push rod (9) has a fixed head (10) at its output end. The fixed head (10) is rotatably mounted with a ball (11) that contacts the outer wall of the iron core. The ball (11) is driven radially by the electric push rod (9) to adapt to iron cores of different sizes. The auxiliary component (12) is detachably connected to the front side of the auxiliary plate (7) and is used to separate the assembled bearing from the iron core.

2. The bearing assembly equipment according to claim 1, characterized in that: The electric push rods (9) at the top and bottom of the auxiliary plate (7) are symmetrically distributed around the through hole (8), and the balls (11) at the top and bottom together form a radial clamping structure for the iron core.

3. The bearing assembly equipment according to claim 2, characterized in that: The auxiliary component (12) includes a reinforcing plate (13), and a rectangular opening (14) is provided on the front side of the auxiliary plate (7). The reinforcing plate (13) is inserted into the opening (14). Extension plates (15) are fixedly provided on the upper and lower sides of the reinforcing plate (13). A first auxiliary hole (16) is opened on the extension plate (15), and a second auxiliary hole (17) is provided on the auxiliary plate (7). A pin (18) is provided in the first auxiliary hole (16), and the first auxiliary hole (16) and the second auxiliary hole (17) are fixedly connected by the pin (18).

4. The bearing assembly equipment according to claim 2, characterized in that: The support frame (3) is symmetrically provided with vertical screws (19) on both sides. The screws (19) are rotatably connected to the base (1) and the top plate (4), and pass through the auxiliary plate (7) and are threadedly engaged with it. Two independently driven drive motors (20) are installed on the top plate (4). The output shaft of each drive motor (20) is coaxially connected to the corresponding screw (19) to control the lifting and lowering of the auxiliary plate (7).

5. The bearing assembly equipment according to claim 1, characterized in that: Both the first electric gripper (2) and the second electric gripper (6) have built-in pressure sensors, and the gripping surfaces are provided with anti-slip textures.

6. The bearing assembly equipment according to claim 2, characterized in that: The surface of the ball (11) is coated with a silicon nitride wear-resistant layer.

7. The bearing assembly equipment according to claim 4, characterized in that: The drive motor (20) is a servo motor, and the lifting and lowering movements of the screws (19) on both sides are synchronized through independent control.

8. The bearing assembly equipment according to claim 1, characterized in that: The base (1) is provided with an emergency stop button (21) on its side wall for emergency stopping of equipment operation.

9. The bearing assembly equipment according to claim 1, characterized in that: The fixing head (10) includes a fixing cylinder (22) and a mounting head (23). The fixing cylinder (22) is fixed to the output end of the electric push rod (9). The ball (11) is rotatably disposed in the mounting head (23). A limiting shaft (24) is slidably disposed in the fixing cylinder (22). The outer end of the limiting shaft (24) is fixed to the side of the mounting head (23) away from the ball (11). A compression spring (25) is fixedly disposed in the inner end of the limiting shaft (24). The compression spring (25) is fixed inside the fixing cylinder (22) to reduce the impact on the iron core during clamping.

10. A bearing assembly device according to claim 4, characterized in that: The sliding stroke of the auxiliary plate (7) is fed back in real time by the encoder of the drive motor (20) to precisely control the lifting position.

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