Automatic replacing device for tightening shaft sleeve
By designing an automatic replacement device for tightening shaft sleeves including multiple components, the problem of difficulty in stably clamping and rotating the side walls of the shaft sleeves in the prior art is solved, and convenient automatic replacement and replacement of the shaft sleeves are achieved in a convenient and automatic replacement of the shaft sleeves. High replacement efficiency.
Patent Information
- Application Number
- CN202520144468.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2035-01-22
AI Technical Summary
The existing automatic replacement device for tightening shaft sleeves is difficult to stably clamp and rotate the side walls of the shaft sleeves, making it inconvenient to automatically replace the shaft sleeves.
An automatic replacement device for tightening shaft sleeves including a base plate, a support body, a frame, a moving plate, a U-shaped plate, a push assembly, a moving lift assembly and a replacement assembly is designed. The coordinated work of the moving lift assembly and the replacement assembly is achieved to achieve stable clamping and rotation of the side wall of the shaft sleeve.
It realizes stable clamping and rotation of the side wall of the shaft sleeve, which facilitates automatic replacement of the shaft sleeve and improves replacement efficiency and safety.
Smart Images
Figure CN222520501U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of automatic replacement devices, and in particular relates to an automatic replacement device for a tightening shaft sleeve. Background Art
[0002] In modern manufacturing, the replacement of tightening shaft sleeves is a common operation, especially in the fields of automobile manufacturing, machinery manufacturing and electronic equipment manufacturing. The traditional method of replacing tightening shaft sleeves usually relies on manual operation, which is not only time-consuming and labor-intensive, but also poses a safety hazard.
[0003] At present, there are some automatic replacement devices for tightening shaft sleeves on the market, but these devices usually use a clamping mechanism to clamp the cylindrical outer wall of the shaft sleeve, and rotate the clamping mechanism to tighten the shaft sleeve. However, the automatic replacement devices for tightening shaft sleeves in the prior art usually find it difficult to stably clamp and rotate the side wall of the shaft sleeve, which is inconvenient for automatic replacement of the shaft sleeve, and further improvement is needed.
[0004] Therefore, an automatic replacement device for tightening a shaft sleeve is proposed, which can stably clamp and rotate the side wall of the shaft sleeve and facilitate automatic replacement of the shaft sleeve. Utility Model Content
[0005] In order to overcome the problem that the automatic replacement device for tightening shaft sleeves in the prior art is usually difficult to stably clamp and rotate the side wall of the shaft sleeve, and is inconvenient to automatically replace the shaft sleeve, an automatic replacement device for tightening shaft sleeves is proposed.
[0006] The technical scheme of the utility model is: an automatic replacement device for tightening a shaft sleeve, comprising a bottom plate and a shaft sleeve body; a support body is fixedly connected to the right upper end of the bottom plate, a frame is fixedly connected to the left upper end of the bottom plate, a moving plate is slidably placed through the left end of the frame, the moving plate is U-shaped and has an opening upward, uniformly distributed limit blocks are fixedly connected to the bottom surface of the inner wall of the moving plate, a workpiece is placed between two adjacent limit blocks, a U-shaped plate is fixedly connected to the upper end of the support body, the opening of the U-shaped plate is upward, the shaft sleeve body is placed on the inner wall of the U-shaped plate, a pushing assembly is arranged on the U-shaped plate, a mobile lifting assembly is arranged on the upper end of the frame, a replacement assembly is arranged on the mobile lifting assembly, two limit plates are fixedly connected to the side end of the frame, and a grating transmitter is fixedly connected to the upper end of one of the limit plates;
[0007] The replacement component includes a hexagonal body, a first slot body, a third electric cylinder, a through hole, an extrusion column, a connecting block, a hexagonal frame, a U-shaped seat, a fixed arm and a fixed column; a fixed column is installed on the mobile lifting component, a hexagonal body is arranged below the fixed column, the first slot body is penetrated at the upper and lower ends of the hexagonal body, six side walls of the hexagonal body are penetrated with through holes, the six outer side walls of the hexagonal body are fixedly connected to the third electric cylinder, the output shaft of the third electric cylinder is located inside the through hole, the extrusion column is fixedly connected to the output shaft of the third electric cylinder, the six outer side walls of the hexagonal body are fixedly connected to the connecting block, the ends of the six connecting blocks away from the first slot body are commonly fixedly connected to the hexagonal frame, the six outer side walls of the hexagonal frame are fixedly connected to the U-shaped seat, the fixed arm is hinged on the U-shaped seat, the upper ends of the six fixed arms are fixedly connected to the lower part of the side wall of the fixed column, the inner diameter of the first slot body is equal to the outer diameter of the upper end of the shaft sleeve body, the lower end of the hexagonal frame is fixedly connected to a grating receiver, and the grating receiver and the grating transmitter are adapted.
[0008] Preferably, the ends of the two limiting plates that are close to each other are both in contact with the side walls of the upper half of the workpiece, and the upper end of the workpiece is located above the upper ends of the limiting plates.
[0009] Preferably, the central axis of the fixing column is collinear with the central axis of the first slot body, and the central axis of the fixing column is collinear with the central axis of the hexagonal frame.
[0010] Preferably, the transfer assembly includes a second trough body, a second motor, a screw body, a screw nut, a second moving block and a bearing seat; a second trough body is penetrated through the support body, a second motor is fixedly connected to the bottom surface of the inner wall of the second trough body, one end of the output shaft of the second motor is fixedly connected to one end of the screw body, a screw nut is movably mounted on the side wall of the screw body, a second moving block is fixedly connected to the side wall of the screw nut, an upper end of the second moving block is fixedly connected to the lower end of the moving plate, a bearing seat is fixedly connected to the left end of the frame, and the outer wall of the other end of the screw body is in contact with the inner wall of the bearing seat.
[0011] Preferably, the mobile lifting assembly includes a rodless cylinder, a first moving block, a second electric cylinder, a lifting block and a first motor; the upper end of the frame is fixedly connected to a horizontally arranged rodless cylinder, the side wall of the moving end of the rodless cylinder is fixedly connected to a horizontally arranged first moving block, the upper end of the first moving block is fixedly connected to the second electric cylinder, the lower end of the output shaft of the second electric cylinder passes through the first moving block and is fixedly connected to the lifting block, the lower end of the lifting block is fixedly connected to the first motor, and the lower end of the output shaft of the first motor is fixedly connected to the upper end of the fixed column.
[0012] Preferably, the pushing assembly includes a first electric cylinder, a pushing block and a positioning block; the first electric cylinder is fixedly connected to the inner wall of the U-shaped plate, the output shaft of the first electric cylinder faces the shaft sleeve body, one end of the output shaft of the first electric cylinder is fixedly connected to the pushing block, the inner wall of the U-shaped plate is fixedly connected to the positioning block, the shaft sleeve body is located between the positioning block and the pushing block, the ends of the shaft sleeve body and the positioning block that are close to each other are in contact with each other, and the ends of the shaft sleeve body and the pushing block that are close to each other are in contact with each other.
[0013] The beneficial effects of the utility model are as follows: by opening the mobile lifting assembly to move the fixed column, the hexagonal body is located directly above the shaft sleeve body, the mobile lifting assembly is opened to allow the upper end side wall of the shaft sleeve body to enter the inner wall of the first slot body, and then the third electric cylinder is opened to allow the extrusion column to move toward the center of the first slot body, and the upper part of the side wall of the shaft sleeve body is squeezed and fixed, and then the mobile lifting assembly is opened to move the shaft sleeve body to the top of the workpiece. When the grating receiver and the grating transmitter are adapted, the shaft sleeve body is located directly above the workpiece, and the mobile lifting assembly is opened to move and rotate the shaft sleeve body downward, so that The shaft sleeve body is quickly tightened on the upper end side wall of the workpiece, the replacement assembly is opened to release the squeezing of the side wall of the shaft sleeve body, and then the transfer assembly is opened to move the movable plate to the left. After the finished product is removed, the transfer assembly is opened again to reset the transfer assembly, and the next group of workpieces and shaft sleeve bodies can be installed. The assembly of the installed workpieces and the shaft sleeve body will pass through the frame and move to the left side of the frame, which is convenient for collecting the assembly. This solves the problem that the automatic replacement device for tightening the shaft sleeve in the prior art is usually difficult to stably clamp and rotate the side wall of the shaft sleeve, making it inconvenient to automatically replace the shaft sleeve. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 What is shown is a three-dimensional structural schematic diagram of an automatic replacement device for a tightening shaft sleeve of the utility model;
[0015] Figure 2 The three-dimensional structure schematic diagram of the mobile lifting assembly of the automatic replacement device for the tightening shaft sleeve of the utility model is shown;
[0016] Figure 3 The three-dimensional structure schematic diagram of a transfer assembly of a tightening shaft sleeve automatic replacement device of the utility model is shown;
[0017] Figure 4 What is shown is a three-dimensional structural schematic diagram of a replacement component of a tightening shaft sleeve automatic replacement device of the utility model;
[0018] Figure 5 The three-dimensional structure diagram of a hexagonal frame of an automatic replacement device for a tightening shaft sleeve of the utility model is shown;
[0019] Figure 6The three-dimensional structure schematic diagram of a push assembly of a tightening shaft sleeve automatic replacement device of the utility model is shown;
[0020] Figure 7 What is shown is a three-dimensional structural schematic diagram of a frame of an automatic replacement device for a tightening shaft sleeve of the utility model.
[0021] The marks in the attached drawings are: 1, bottom plate; 2, support body; 3, U-shaped plate; 31, first electric cylinder; 32, push block; 33, positioning block; 4, shaft sleeve body; 5, frame; 6, mobile lifting assembly; 61, rodless cylinder; 62, first moving block; 63, second electric cylinder; 64, lifting block; 65, first motor; 7, replacement assembly; 71, hexagonal body; 72, first trough body; 73, third electric cylinder; 74, Through hole; 75, extrusion column; 76, connecting block; 77, hexagonal frame; 78, U-shaped seat; 79, fixed arm; 710, fixed column; 8, transfer assembly; 81, second trough body; 82, second motor; 83, screw body; 84, screw nut; 85, second moving block; 86, bearing seat; 9, limit plate; 10, grating transmitter; 11, moving plate; 12, limit block; 13, workpiece; 14, grating receiver. DETAILED DESCRIPTION
[0022] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0023] See also Figure 1-Figure 7 The utility model provides an embodiment: an automatic replacement device for tightening a shaft sleeve, comprising a base plate 1 and a shaft sleeve body 4; a support body 2 is fixedly connected to the right upper end of the base plate 1, a frame 5 is fixedly connected to the left upper end of the base plate 1, a moving plate 11 is slidably placed through the left end of the frame 5, the moving plate 11 is U-shaped and opens upward, and the bottom surface of the inner wall of the moving plate 11 is fixedly connected with uniformly distributed limit blocks 12, and a workpiece 13 is placed between two adjacent limit blocks 12, a U-shaped plate 3 is fixedly connected to the upper end of the support body 2, the opening of the U-shaped plate 3 is upward, the shaft sleeve body 4 is placed on the inner wall of the U-shaped plate 3, a pushing component is provided on the U-shaped plate 3, a mobile lifting component 6 is provided on the upper end of the frame 5, a replacement component 7 is provided on the mobile lifting component 6, and two limit plates 9 are fixedly connected to the side ends of the frame 5, and a grating transmitter 10 is fixedly connected to the upper end of one of the limit plates 9;
[0024] The replacement component 7 includes a hexagonal body 71, a first slot body 72, a third electric cylinder 73, a through hole 74, an extrusion column 75, a connecting block 76, a hexagonal frame 77, a U-shaped seat 78, a fixed arm 79 and a fixed column 710; the mobile lifting component 6 is installed with a fixed column 710, and a hexagonal body 71 is arranged below the fixed column 710. The upper and lower ends of the hexagonal body 71 are penetrated by the first slot body 72, and the six side walls of the hexagonal body 71 are penetrated by the through holes 74. The six outer side walls of the hexagonal body 71 are fixedly connected with the third electric cylinder 73, and the output shaft of the third electric cylinder 73 is located inside the through hole 74. An extrusion column 75 is fixedly connected to the output shaft of the third electric cylinder 73, and the six outer side walls of the hexagonal body 71 are fixedly connected to connecting blocks 76. The six connecting blocks 76 are commonly fixedly connected to a hexagonal frame 77 at one end away from the first slot body 72. The six outer side walls of the hexagonal frame 77 are fixedly connected to a U-shaped seat 78. A fixed arm 79 is hinged on the U-shaped seat 78. The upper ends of the six fixed arms 79 are fixedly connected to the lower part of the side wall of the fixed column 710. The inner diameter of the first slot body 72 is equal to the outer diameter of the upper end of the shaft sleeve body 4. The lower end of the hexagonal frame 77 is fixedly connected to a grating receiver 14, and the grating receiver 14 is adapted to the grating transmitter 10.
[0025] When in use, the mobile lifting assembly 6 is turned on to move the fixed column 710 so that the first slot body 72 is located directly above the shaft sleeve body 4, and the mobile lifting assembly 6 is turned on to allow the upper end side wall of the shaft sleeve body 4 to enter the inner wall of the first slot body 72, and then the third electric cylinder 73 is turned on to allow the extrusion column 75 to move toward the center of the first slot body 72, and the upper part of the side wall of the shaft sleeve body 4 is squeezed and fixed, and then the mobile lifting assembly 6 is turned on to move the shaft sleeve body 4 to the top of the workpiece 13. When the grating receiver 14 and the grating transmitter 10 are adapted, the shaft sleeve body 4 is located directly above the workpiece 13, and the mobile lifting assembly 6 is turned on to move the shaft sleeve body 4 to the top of the workpiece 13. The body 4 moves downward and rotates, and the shaft sleeve body 4 can be quickly tightened on the upper end side wall of the workpiece 13. Then, the third electric cylinder 73 is turned on to release the squeezing of the side wall of the shaft sleeve body 4, and then the movable lifting assembly 6 is turned on to move the replacement assembly 7 upward. Then, the transfer assembly 8 is turned on to move the movable plate 11 to the left. After the assembled workpiece 13 and the shaft sleeve body 4 are removed, the transfer assembly 8 is turned on again to reset it, and the next set of workpieces 13 and shaft sleeve bodies 4 can be installed. The installed workpiece 13 and shaft sleeve body 4 assembly will pass through the frame 5 and move to the left side of the frame 5, which is convenient for collecting the assembly.
[0026] See also Figure 1 In this embodiment, the ends of the two limit plates 9 that are close to each other are in contact with the side walls of the upper half of the workpiece 13, and the upper end of the workpiece 13 is located above the upper end of the limit plates 9. The two limit plates 9 can limit the side walls of the upper half of the workpiece 13, which is beneficial to the stable movement of the workpiece 13.
[0027] See also Figure 1 and Figure 4 In this embodiment, the central axis of the fixing column 710 and the central axis of the first slot body 72 are collinear, and the central axis of the fixing column 710 and the central axis of the hexagonal frame 77 are collinear, which is conducive to fast and stable clamping of the shaft sleeve body 4.
[0028] See also Figure 1 and Figure 3 In this embodiment, the transfer assembly 8 includes a second slot body 81, a second motor 82, a screw body 83, a screw nut 84, a second moving block 85 and a bearing seat 86; the support body 2 is provided with a second slot body 81, the bottom surface of the inner wall of the second slot body 81 is fixedly connected to the second motor 82, one end of the output shaft of the second motor 82 is fixedly connected to one end of the screw body 83, the side wall of the screw body 83 is movably mounted with a screw nut 84, the side wall of the screw nut 84 is fixedly connected to the second moving block 85, the upper end of the second moving block 85 is fixedly connected to the lower end of the moving plate 11, the left end of the frame 5 is fixedly connected to the bearing seat 86, the outer wall of the other end of the screw body 83 is fitted with the inner wall of the bearing seat 86, when the moving plate 11 needs to be moved, the second motor 82 is turned on to rotate the screw body 83, the screw nut 84 will move along the side wall of the screw body 83, and the moving plate 11 can be moved.
[0029] See also Figure 1 and Figure 2 In this embodiment, the movable lifting component 6 includes a rodless cylinder 61, a first moving block 62, a second electric cylinder 63, a lifting block 64 and a first motor 65; the upper end of the frame 5 is fixedly connected to the horizontally arranged rodless cylinder 61, and the side wall of the moving end of the rodless cylinder 61 is fixedly connected to the horizontally arranged first moving block 62, the upper end of the first moving block 62 is fixedly connected to the second electric cylinder 63, the lower end of the output shaft of the second electric cylinder 63 passes through the first moving block 62 and is fixedly connected to the lifting block 64, the lower end of the lifting block 64 is fixedly connected to the first motor 65, and the lower end of the output shaft of the first motor 65 is fixedly connected to the upper end of the fixed column 710. Turning on the rodless cylinder 61 allows the moving end of the rodless cylinder 61 to drive the replacement component 7 to move, and turning on the second electric cylinder 63 allows the output shaft of the second electric cylinder 63 to extend downward, so that the replacement component 7 can move downward, which is convenient for moving and lifting the shaft sleeve body 4.
[0030] See also Figure 1 and Figure 6In this embodiment, the pushing assembly includes a first electric cylinder 31, a pushing block 32 and a positioning block 33; the inner wall of the U-shaped plate 3 is fixedly connected to the first electric cylinder 31, the output shaft of the first electric cylinder 31 faces the shaft sleeve body 4, one end of the output shaft of the first electric cylinder 31 is fixedly connected to the pushing block 32, the inner wall of the U-shaped plate 3 is fixedly connected to the positioning block 33, the shaft sleeve body 4 is located between the positioning block 33 and the pushing block 32, the ends of the shaft sleeve body 4 and the positioning block 33 that are close to each other fit together, and the ends of the shaft sleeve body 4 and the pushing block 32 that are close to each other fit together, the shaft sleeve body 4 is placed on the inner wall of the U-shaped plate 3, and then the first electric cylinder 31 is turned on to make the pushing block 32 move toward the shaft sleeve body 4, and the shaft sleeve body 4 is pushed to the position of the positioning block 33, so that the shaft sleeve body 4 is squeezed and fixed between the positioning block 33 and the pushing block 32, so that the shaft sleeve body 4 can be quickly positioned.
[0031] Working principle: First, place the shaft sleeve body 4 on the inner wall of the U-shaped plate 3, then start the first electric cylinder 31 to make the push block 32 move toward the shaft sleeve body 4, and push the shaft sleeve body 4 to the position where the positioning block 33 is located, so that the shaft sleeve body 4 is squeezed and fixed between the positioning block 33 and the push block 32, so as to realize the rapid positioning of the shaft sleeve body 4;
[0032] Then, the movable lifting assembly 6 is turned on to move the fixed column 710, the rodless cylinder 61 is turned on first so that the movable end of the rodless cylinder 61 drives the replacement assembly 7 to move to the right, and the second electric cylinder 63 is turned on so that the output shaft of the second electric cylinder 63 extends downward to move the replacement assembly 7 downward;
[0033] Next, the hexagonal body 71 is positioned directly above the shaft sleeve body 4, the second electric cylinder 63 is turned on to move the lifting block 64 downward, so that the upper side wall of the shaft sleeve body 4 enters the inner wall of the first slot 72, and then the third electric cylinder 73 is turned on to move the squeezing column 75 toward the center of the first slot 72, squeezing and fixing the upper side wall of the shaft sleeve body 4;
[0034] Then, the rodless cylinder 61 is turned on to move the shaft sleeve body 4 to the top of the workpiece 13. When the grating receiver 14 and the grating transmitter 10 are matched, the shaft sleeve body 4 is located directly above the workpiece 13.
[0035] The second electric cylinder 63 is turned on again to move the lifting block 64 downward, and the first motor 65 is turned on to rotate the replacement assembly 7, so that the shaft sleeve body 4 is moved downward and rotated, and the shaft sleeve body 4 can be quickly tightened to the upper end side wall of the workpiece 13;
[0036] Then, the third electric cylinder 73 is turned on to release the squeezing of the side wall of the shaft sleeve body 4, and then the moving lifting assembly 6 is turned on to move the replacement assembly 7 upward;
[0037] Finally, the transfer assembly 8 is turned on to move the moving plate 11 to the left, and the second motor 82 is turned on to rotate the screw body 83. The screw nut 84 moves to the left along the side wall of the screw body 83, and the moving plate 11 can be moved to the left. After the assembly of the assembled workpiece 13 and the shaft sleeve body 4 is removed, the transfer assembly 8 is turned on again to reset it.
[0038] The next set of workpieces 13 and shaft sleeve body 4 can be installed, and the assembled parts of the assembled workpieces 13 and shaft sleeve body 4 will pass through the frame 5 and move to the left side of the frame 5, so that the assembled parts can be collected conveniently.
[0039] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.
Claims
1. A tightening shaft sleeve automatic replacement device, comprising a base plate (1) and a shaft sleeve body (4); characterized in that: The upper right part of the bottom plate (1) is fixedly connected to a support body (2), the upper left part of the bottom plate (1) is fixedly connected to a frame (5), a moving plate (11) is slidably placed through the left end of the frame (5), the moving plate (11) is U-shaped and has an opening facing upwards, the bottom surface of the inner wall of the moving plate (11) is fixedly connected to evenly distributed limit blocks (12), a workpiece (13) is placed between two adjacent limit blocks (12), the upper end of the support body (2) is fixedly connected to a U-shaped plate (3), the opening of the U-shaped plate (3) faces upwards, the shaft sleeve body (4) is placed on the inner wall of the U-shaped plate (3), a push assembly is provided on the U-shaped plate (3), a moving lifting assembly (6) is provided on the upper end of the frame (5), a replacement assembly (7) is provided on the moving lifting assembly (6), two limit plates (9) are fixedly connected to the side end of the frame (5), and a grating transmitter (10) is fixedly connected to the upper end of one of the limit plates (9); The replacement component (7) comprises a hexagonal body (71), a first slot body (72), a third electric cylinder (73), a through hole (74), an extrusion column (75), a connection block (76), a hexagonal frame (77), a U-shaped seat (78), a fixed arm (79) and a fixed column (710); the mobile lifting component (6) is provided with a fixed column (710), a hexagonal body (71) is arranged below the fixed column (710), the first slot body (72) is penetrated at the upper and lower ends of the hexagonal body (71), the six side walls of the hexagonal body (71) are penetrated with a through hole (74), the six outer side walls of the hexagonal body (71) are fixedly connected with the third electric cylinder (73), and the output shaft of the third electric cylinder (73) is located in the through hole (74). ), an extrusion column (75) is fixedly connected to the output shaft of the third electric cylinder (73), six outer side walls of the hexagonal body (71) are fixedly connected to connection blocks (76), one end of the six connection blocks (76) away from the first slot body (72) is commonly fixedly connected to a hexagonal frame (77), six outer side walls of the hexagonal frame (77) are fixedly connected to a U-shaped seat (78), a fixed arm (79) is hinged on the U-shaped seat (78), the upper ends of the six fixed arms (79) are fixedly connected to the lower part of the side wall of the fixed column (710), the inner diameter of the first slot body (72) is equal to the outer diameter of the upper end of the shaft sleeve body (4), and the lower end of the hexagonal frame (77) is fixedly connected to a grating receiver (14), and the grating receiver (14) and the grating transmitter (10) are compatible.
2. The automatic replacement device for a tightening shaft sleeve according to claim 1, characterized in that: The ends of the two limit plates (9) that are close to each other are both in contact with the side wall of the upper half of the workpiece (13), and the upper end of the workpiece (13) is located above the upper end of the limit plates (9).
3. The automatic replacement device for tightening shaft sleeve according to claim 1, characterized in that: The central axis of the fixed column (710) and the central axis of the first slot body (72) are collinear, and the central axis of the fixed column (710) and the central axis of the hexagonal frame (77) are collinear.
4. The automatic replacement device for tightening shaft sleeve according to claim 1, characterized in that: The transfer assembly (8) comprises a second trough (81), a second motor (82), a screw body (83), a screw nut (84), a second moving block (85) and a bearing seat (86); the second trough (81) is penetrated through the support body (2); the second motor (82) is fixedly connected to the bottom surface of the inner wall of the second trough (81); one end of the output shaft of the second motor (82) is fixedly connected to one end of the screw body (83); a screw nut (84) is movably mounted on the side wall of the screw body (83); the second moving block (85) is fixedly connected to the side wall of the screw nut (84); the upper end of the second moving block (85) is fixedly connected to the lower end of the moving plate (11); the left end of the frame (5) is fixedly connected to the bearing seat (86); the outer wall of the other end of the screw body (83) is in contact with the inner wall of the bearing seat (86).
5. The automatic replacement device for tightening shaft sleeve according to claim 1, characterized in that: The mobile lifting assembly (6) comprises a rodless cylinder (61), a first moving block (62), a second electric cylinder (63), a lifting block (64) and a first motor (65); the upper end of the frame (5) is fixedly connected to a horizontally arranged rodless cylinder (61); the side wall of the moving end of the rodless cylinder (61) is fixedly connected to a horizontally arranged first moving block (62); the upper end of the first moving block (62) is fixedly connected to the second electric cylinder (63); the lower end of the output shaft of the second electric cylinder (63) passes through the first moving block (62) and is fixedly connected to the lifting block (64); the lower end of the lifting block (64) is fixedly connected to the first motor (65); and the lower end of the output shaft of the first motor (65) is fixedly connected to the upper end of the fixed column (710).
6. The automatic replacement device for tightening shaft sleeve according to claim 1, characterized in that: The push assembly comprises a first electric cylinder (31), a push block (32) and a positioning block (33); the first electric cylinder (31) is fixedly connected to the inner wall of the U-shaped plate (3); the output shaft of the first electric cylinder (31) faces the shaft sleeve body (4); one end of the output shaft of the first electric cylinder (31) is fixedly connected to the push block (32); the inner wall of the U-shaped plate (3) is fixedly connected to the positioning block (33); the shaft sleeve body (4) is located between the positioning block (33) and the push block (32); the ends of the shaft sleeve body (4) and the positioning block (33) that are close to each other are in contact with each other; and the ends of the shaft sleeve body (4) and the push block (32) that are close to each other are in contact with each other.