Roller press-fitting bearing jig

Abstract

The utility model discloses a roller press-fitting bearing jig which comprises a supporting support, a fixing base plate is installed on the supporting support, a fixing frame is fixedly installed on the upper surface of the fixing base plate, a threaded rod is installed on the upper surface of the fixing frame in a threaded mode, and a handle is fixedly installed at the top end of the threaded rod. A mounting plate is rotationally mounted at the bottom end of the threaded rod; a linear guide rail is arranged to be matched with a top plate base and two V-shaped supporting frames for use, the V-shaped supporting frames are used for supporting a roller, the top plate base is matched with an air cylinder to achieve jacking and centering of the roller, a movable frame is matched with an extrusion screw to further press the roller, and the roller is accurately positioned and uniformly applied with pressure. The bearing failure risk is reduced, the appearance damage phenomenon is reduced, operation is convenient, the repair cost caused by bearing damage is reduced, the bearing damage risk and the surface scratch risk caused by manual bearing knocking-in are reduced, and the jig is universal through replacement of the V-shaped supporting frame for different pipe diameters.

Description

Technical Field

[0001] The utility model belongs to the technical field of roller press-fit bearings, and in particular relates to a roller press-fit bearing jig. Background Art

[0002] At present, when roller products are pressed into sprocket bearings, due to the long length and large volume and weight of the rollers, the bearings are pressed in manually to reduce handling. Rollers are usually stacked together and the bearings are hammered in. However, friction will occur between adjacent rollers during this process, causing surface scratches. Secondly, when the bearings are hammered in manually, there is a potential risk of failure of the bearings due to uneven force. Utility Model Content

[0003] The purpose of the utility model is to provide a roller press-fit bearing jig to solve the problems mentioned in the above background technology that the current roller products are subjected to uneven force due to manual knocking, which poses a risk of failure, and the roller surface is easily scratched during stacking, affecting the appearance of the product.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a roller press-fit bearing jig, comprising a support bracket, on which a fixed chassis is installed;

[0005] A fixed frame is fixedly mounted on the upper surface of the fixed chassis, a threaded rod is threadedly mounted on the upper surface of the fixed frame, a handle is fixedly mounted on the top of the threaded rod, a mounting plate is rotatably mounted on the bottom of the threaded rod, a cylinder is fixedly mounted on the side of the mounting plate, and a bearing press-fitting die is fixedly mounted on the end of the piston rod of the cylinder;

[0006] A movable frame is slidably mounted on the fixed chassis, and an extrusion screw is threadedly mounted on the upper surface of the movable frame;

[0007] A linear guide rail is fixedly mounted on the upper surface of a fixed chassis, a top plate seat and two movable seats are slidably mounted on the linear guide rail, a plurality of fixing bolts 1 are threadedly mounted on the top plate seat, a plurality of fixing thread grooves 1 used in conjunction with the fixing bolts 1 are provided on the upper surface of the fixed chassis, a plurality of fixing bolts 2 are threadedly mounted on the movable seat, a plurality of fixing thread grooves 2 used in conjunction with the fixing bolts 2 are provided on the upper surface of the linear guide rail, and a V-shaped support frame is detachably mounted on the movable seat;

[0008] Two positioning plates are fixed on the lower surface of the V-shaped support frame, and the two positioning plates are respectively arranged on opposite sides of the movable seat at the same side position. A positioning rod is slidably installed on the positioning plate, and an operating plate is fixedly installed on one end of the positioning rod. A positioning groove for inserting the other end of the positioning rod is opened on the side of the movable seat; the positioning plate is used in conjunction with the positioning rod and the operating plate, and the positioning rod is disengaged from or inserted into the positioning groove when sliding, thereby realizing the unlocking and locking between the V-shaped support frame and the movable seat.

[0009] The above scheme is adopted, by setting a linear guide rail for use with a top plate seat and two V-shaped support frames, the V-shaped support frame is used to support the roller, and the top plate seat is used in conjunction with the cylinder to achieve the tightening and centering of the roller, and the movable frame is used in conjunction with the extrusion screw to further tighten the roller, and the risk of bearing failure and appearance damage are reduced by precise positioning and uniform pressure application. The operation is convenient, the rework cost caused by damaged bearings is reduced, and the risk of bearing damage and surface scratches caused by manual knocking in of bearings are reduced. Different pipe diameters can be replaced by V-shaped support frames to achieve universal fixtures, and a fixed frame is set for use with a threaded rod. The rotation of the threaded rod can realize the lifting movement of the cylinder, and then the cylinder and the bearing press-fitting mold can be moved up and down according to the diameter of the roller to ensure coaxial press-fitting, and the positioning rod is used in conjunction with the positioning plate to realize convenient disassembly and assembly of the V-shaped support frame.

[0010] In the above solution, it should be noted that the cylinder is electrically connected to the external power supply.

[0011] As a preferred embodiment, a plurality of guide rods are fixedly mounted on the inner wall of the fixed frame, the bottom ends of the guide rods are fixedly mounted on the upper surface of the fixed chassis, and the mounting plates are slidably mounted on the outer surfaces of the plurality of guide rods.

[0012] By adopting the above scheme, when the threaded rod is driven to rotate by turning the handle, the mounting plate will move synchronously, and the mounting plate will slide on the surface of the guide rod. The guide rod can be used to support and guide the movement of the mounting plate, so that the mounting plate can move up and down smoothly and is not prone to shaking.

[0013] As a preferred embodiment, a plurality of sliding blocks are fixedly mounted on the inner wall of the movable frame, a sliding groove is provided on the side of the fixed chassis, and the sliding blocks are slidably mounted on the inner wall of the sliding groove.

[0014] By adopting the above solution, the movable frame can slide in the sliding groove through the sliding block, and the cooperation between the sliding block and the sliding groove can ensure the stable sliding of the movable frame and improve the smoothness of movement.

[0015] As a preferred embodiment, a plurality of reinforcing plates are welded and installed on the side surfaces of the top plate seat, and the reinforcing plates are arranged obliquely.

[0016] By adopting the above scheme and using the inclined reinforcement plates in combination, the top plate seat can be reinforced and supported, thereby improving the tightening effect and stability of the top plate seat on the roller.

[0017] As a preferred implementation, a spring is sleeved on the outside of the positioning rod, and two ends of the spring are fixedly connected to the opposite surfaces of the positioning plate and the operating plate, respectively.

[0018] With the above solution, the spring is stretched and deformed when the positioning rod slides out of the positioning groove, so the elastic force of the spring can be used to drive the positioning rod to quickly reset and insert into the positioning groove, thereby improving the convenience of the locking operation of the V-shaped support frame.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] The roller press-fit bearing jig is used by setting a linear guide rail in conjunction with a top plate seat and two V-shaped support frames. The V-shaped support frame is used to support the roller, and the top plate seat is used in conjunction with a cylinder to tighten and center the roller. The roller is further pressed by a movable frame in conjunction with an extrusion screw. The risk of bearing failure and appearance damage are reduced by precise positioning and uniform pressure application. The operation is convenient, the repair cost caused by damaged bearings is reduced, and the risk of bearing damage and surface scratches caused by manual knocking in of bearings is reduced. Different pipe diameters can be replaced by replacing the V-shaped support frame to achieve universal jigs.

[0021] The roller press-fit bearing fixture is used by setting a fixed frame in conjunction with a threaded rod. The rotation of the threaded rod can realize the lifting movement of the cylinder, and then the cylinder and the bearing press-fitting mold can be moved up and down according to the diameter of the roller to ensure coaxial press-fitting. The positioning rod is used in conjunction with the positioning plate to realize convenient disassembly and assembly of the V-shaped support frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 This is a structural schematic diagram of the fixed frame, threaded rod, mounting plate, cylinder and bearing press-fitting die of the utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the movable frame and the extrusion screw of the utility model;

[0025] Figure 4 It is a structural schematic diagram of the linear guide rail, movable seat, top plate seat and V-shaped support frame of the utility model;

[0026] Figure 5 It is an exploded schematic diagram of the top plate seat and the V-shaped support frame of the utility model;

[0027] Figure 6 The utility model is a schematic structural diagram of the positioning plate, positioning rod, operating plate and spring.

[0028] In the figure: 1. Support bracket; 2. Fixed chassis; 3. Fixed frame; 4. Threaded rod; 5. Mounting plate; 6. Cylinder; 7. Bearing press-fitting die; 8. Movable frame; 9. Extrusion screw; 10. Linear guide; 11. Top plate seat; 12. Movable seat; 13. Fixing bolt one; 14. Fixing bolt two; 15. V-shaped support frame; 16. Guide rod; 17. Sliding block; 18. Positioning plate; 19. Positioning rod; 20. Operating panel; 21. Spring. DETAILED DESCRIPTION

[0029] See also Figure 1-Figure 6 The utility model provides a roller press-fit bearing jig, comprising a support bracket 1, on which a fixed chassis 2 is mounted;

[0030] A fixed frame 3 is fixedly mounted on the upper surface of the fixed chassis 2, a threaded rod 4 is threadedly mounted on the upper surface of the fixed frame 3, a handle is fixedly mounted on the top of the threaded rod 4, a mounting plate 5 is rotatably mounted on the bottom end of the threaded rod 4, a cylinder 6 is fixedly mounted on the side of the mounting plate 5, and a bearing press-fitting die 7 is fixedly mounted on the end of the piston rod of the cylinder 6;

[0031] A movable frame 8 is slidably mounted on the fixed chassis 2, and a squeezing screw 9 is threadedly mounted on the upper surface of the movable frame 8;

[0032] The linear guide 10 is fixedly mounted on the upper surface of the fixed chassis 2, and a top plate seat 11 and two movable seats 12 are slidably mounted on the linear guide 10, and a plurality of fixing bolts 13 are threadedly mounted on the top plate seat 11, and a plurality of fixing thread grooves 1 used in conjunction with the fixing bolts 13 are provided on the upper surface of the fixed chassis 2, and a plurality of fixing bolts 2 14 are threadedly mounted on the movable seat 12, and a plurality of fixing thread grooves 2 used in conjunction with the fixing bolts 2 14 are provided on the upper surface of the linear guide 10, and a V-shaped support frame 15 is detachably mounted on the movable seat 12.

[0033] By setting a linear guide 10 for use with a top plate seat 11 and two V-shaped support frames 15, the V-shaped support frame 15 is used to support the roller, and the top plate seat 11 is used to cooperate with the cylinder 6 to achieve the tightening and centering of the roller, and the movable frame 8 is used to cooperate with the extrusion screw 9 to further press the roller, and the risk of bearing failure and appearance damage is reduced by precise positioning and uniform pressure application. The operation is convenient, the rework cost caused by damaged bearings is reduced, and the risk of bearing damage and surface scratches caused by manual knocking in of bearings is reduced. Different pipe diameters can be replaced by the V-shaped support frame 15 to achieve universal fixtures, and a fixed frame 3 is set for use with a threaded rod 4. The rotation of the threaded rod 4 can realize the lifting and lowering movement of the cylinder 6, and then the cylinder 6 and the bearing pressing mold 7 can be moved up and down according to the diameter of the roller to ensure coaxial pressing, and the positioning rod 19 is used in conjunction with the positioning plate 18 to realize convenient disassembly and assembly of the V-shaped support frame 15.

[0034] A plurality of guide rods 16 are fixedly mounted on the inner wall of the fixed frame 3, and the bottom ends of the guide rods 16 are fixedly mounted on the upper surface of the fixed chassis 2. The mounting plate 5 is slidably mounted on the outer surfaces of the plurality of guide rods 16. When the threaded rod 4 is rotated by turning the handle, the mounting plate 5 will move synchronously, and the mounting plate 5 will slide on the surface of the guide rods 16. The guide rods 16 can be used to support and guide the movement of the mounting plate 5, so that the mounting plate 5 moves up and down smoothly and is not prone to shaking.

[0035] A plurality of sliding blocks 17 are fixedly mounted on the inner wall of the movable frame 8, a sliding groove is provided on the side of the fixed chassis 2, and the sliding block 17 is slidably mounted on the inner wall of the sliding groove. The movable frame 8 can slide in the sliding groove through the sliding block 17, and the cooperation between the sliding block 17 and the sliding groove can ensure the stable sliding of the movable frame 8 and improve the smoothness of movement.

[0036] A plurality of reinforcing plates are welded and installed on the side of the top plate seat 11, and the reinforcing plates are arranged obliquely. The inclined reinforcing plates are used in combination to provide reinforced support for the top plate seat 11, thereby improving the stability of the tightening effect of the top plate seat 11 on the roller.

[0037] Two positioning plates 18 are fixed to the lower surface of the V-shaped support frame 15, and the two positioning plates 18 are respectively arranged on the opposite sides of the movable seat 12 at the same side position. A positioning rod 19 is slidably installed on the positioning plate 18, and an operating plate 20 is fixedly installed at one end of the positioning rod 19. A positioning groove for inserting the other end of the positioning rod 19 is opened on the side of the movable seat 12. The positioning plate 18 is used in conjunction with the positioning rod 19 and the operating plate 20. When the positioning rod 19 slides, it disengages from or inserts into the positioning groove to realize the unlocking and locking between the V-shaped support frame 15 and the movable seat 12.

[0038] The outer sleeve of the positioning rod 19 is provided with a spring 21, and the two ends of the spring 21 are fixedly connected to the opposite surfaces of the positioning plate 18 and the operating plate 20 respectively. When the positioning rod 19 slides out of the positioning groove, the spring 21 is stretched and deformed. Therefore, the elastic force of the spring 21 can be used to drive the positioning rod 19 to quickly reset and insert into the positioning groove, thereby improving the convenience of the locking operation of the V-shaped support frame 15.

[0039] When in use, the position of the top plate seat 11 and the movable seat 12 is adjusted according to the length of the roller. When adjusting, unscrew the fixing bolt 13 and the fixing bolt 2 14 to unlock the top plate seat 11 and the movable seat 12 respectively, and support the top plate seat 11 and the movable seat 12 to slide on the surface of the linear guide rail 10. After sliding to the appropriate position, screw in the fixing bolt 13 and the fixing bolt 2 14 to install the top plate seat 11 and the movable seat 12, and then select and use the V-shaped support frame 15 of appropriate specifications according to the thickness of the roller. When disassembling the V-shaped support frame 15, pull the operating plate 20, and the operating plate 20 drives the positioning rod 19 to disengage the positioning groove. At this time, the V-shaped support frame 15 is unlocked and can be removed, and then the roller to be installed is removed. The installed V-shaped support frame 15 is facing the movable seat 12. Similarly, the operating plate 20 is pulled to make the positioning rod 19 misaligned with the movable seat 12. At this time, the spring 21 is deformed. When the V-shaped support frame 15 is installed, the operating plate 20 is released, and the elastic force of the spring 21 is used to drive the positioning rod 19 to reset and insert it into the positioning groove, so as to realize the installation and locking of the V-shaped support frame 15. Then, the cylinder 6 is raised and lowered and adjusted. When adjusting, the handle is turned, and the handle drives the threaded rod 4 to rotate, thereby driving the cylinder 6 to rise and fall. After adjustment, the rollers are placed on the two V-shaped support frames 15, and the bearings to be pressed are placed in the bearing pressing mold 7. The cylinder 6 is started to drive the bearing pressing mold 7 to move toward the bearing chamber on the roller for pressing.

Claims

1. A roller press-fit bearing fixture, characterized in that: It comprises a support bracket (1), on which a fixed chassis (2) is mounted; A fixed frame (3) is fixedly mounted on the upper surface of the fixed chassis (2); a threaded rod (4) is threadedly mounted on the upper surface of the fixed frame (3); a handle is fixedly mounted on the top end of the threaded rod (4); a mounting plate (5) is rotatably mounted on the bottom end of the threaded rod (4); a cylinder (6) is fixedly mounted on the side of the mounting plate (5); and a bearing pressing mold (7) is fixedly mounted on the end of the piston rod of the cylinder (6); A movable frame (8) is slidably mounted on the fixed chassis (2), and a pressing screw (9) is threadedly mounted on the upper surface of the movable frame (8); A linear guide rail (10) is fixedly mounted on the upper surface of a fixed chassis (2); a top plate seat (11) and two movable seats (12) are slidably mounted on the linear guide rail (10); a plurality of fixing bolts (13) are threadedly mounted on the top plate seat (11); a plurality of fixing thread grooves (1) for use with the fixing bolts (13) are formed on the upper surface of the fixed chassis (2); a plurality of fixing bolts (14) are threadedly mounted on the movable seat (12); a plurality of fixing thread grooves (2) for use with the fixing bolts (14) are formed on the upper surface of the linear guide rail (10); and a V-shaped support frame (15) is detachably mounted on the movable seat (12); Two positioning plates (18) are fixed on the lower surface of the V-shaped support frame (15), and the two positioning plates (18) are respectively arranged on opposite sides of the movable seat (12) at the same side position. A positioning rod (19) is slidably mounted on the positioning plate (18), and an operating plate (20) is fixedly mounted on one end of the positioning rod (19). A positioning groove for inserting the other end of the positioning rod (19) is provided on the side of the movable seat (12); the positioning plate is used in conjunction with the positioning rod and the operating plate, and the positioning rod is disengaged from or inserted into the positioning groove when sliding, thereby realizing unlocking and locking between the V-shaped support frame and the movable seat.

2. The roller press-fit bearing jig according to claim 1, characterized in that: A plurality of guide rods (16) are fixedly mounted on the inner wall of the fixed frame (3); the bottom ends of the guide rods (16) are fixedly mounted on the upper surface of the fixed chassis (2); and the mounting plate (5) is slidably mounted on the outer surfaces of the plurality of guide rods (16).

3. The roller press-fit bearing jig according to claim 1, characterized in that: A plurality of sliding blocks (17) are fixedly mounted on the inner wall of the movable frame (8), a sliding groove is provided on the side of the fixed chassis (2), and the sliding blocks (17) are slidably mounted on the inner wall of the sliding groove.

4. The roller press-fit bearing jig according to claim 1, characterized in that: A plurality of reinforcing plates are welded and installed on the side surface of the top plate seat (11), and the reinforcing plates are arranged obliquely.

5. The roller press-fit bearing jig according to claim 1, characterized in that: A spring (21) is sleeved on the outside of the positioning rod (19), and two ends of the spring (21) are fixedly connected to opposite surfaces of the positioning plate (18) and the operating plate (20), respectively.

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