High-precision mandrel convenient to splice

Abstract

The utility model discloses a high-precision mandrel convenient to splice, and relates to the technical field of mandrels. The upper part of the outer side of the mandrel body is provided with a connecting piece in a sliding manner; the upper part of the outer side of the mandrel body is provided with fixed columns which are symmetrically distributed; the inner sides of the fixed columns are provided with sliding grooves; the inner sides of the sliding grooves are provided with sliding columns, one ends of the sliding columns are provided with springs, and one ends, far away from the springs, of the sliding columns are provided with clamping plates; the bottom face of the clamping plate makes contact with the connecting piece, and a clamping groove corresponding to the clamping plate is formed in the outer side of the mandrel body. Through the cooperation of the fixing column, the sliding groove, the spring, the sliding column, the clamping plate, a screw rod, a movable disc, a guide block, a guide groove, a bolt, a strong magnet, a suction groove and an insertion hole, the bolt is installed in the connecting hole to splice the core shaft body and the connecting piece together, and therefore dual connection is achieved through the clamping plate and the bolt, and the core shaft body and the connecting piece are spliced more stably and firmly; the structure is ingenious, and splicing is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of mandrels, in particular to a high-precision mandrel that is easy to splice. Background Art

[0002] The mandrel is a shaft used to support rotating parts and only bear bending moment but not transmit torque. It is divided into rotating mandrel and fixed mandrel.

[0003] However, the traditional high-precision mandrel is still not ideal when in use. The reason is that the traditional mandrel and the connecting parts are mostly spliced ​​together with a single connection, so they are easy to loosen after long-term use, are not stable and firm enough, and have a complex structure and are not convenient to operate. In view of the above problems, the inventor proposes a high-precision mandrel that is easy to splice to solve the above problems. Utility Model Content

[0004] To solve the above technical problems, the utility model adopts the following technical scheme: a high-precision spindle that is easy to splice, comprising a spindle body, a connecting piece is slidably installed on the outer upper part of the spindle body, a symmetrically distributed fixing column is arranged on the outer upper part of the spindle body, a sliding groove is provided on the inner side of the fixing column, a sliding column is provided on the inner side of the sliding groove, a spring is provided at one end of the sliding column, a clamping plate is provided at the end of the sliding column away from the spring, the bottom surface of the clamping plate contacts the connecting piece, a clamping groove corresponding to the clamping plate is provided on the outer side of the spindle body, a cylindrical groove is provided on the inner side of the lower part of the spindle body, a screw is provided inside the cylindrical groove, a movable disk is provided on the outer side of the screw, an array-distributed bolt is provided at one end of the movable disk, and a connecting hole corresponding to the bolt is provided on the bottom surface of the connecting piece.

[0005] Preferably, the fixed column is fixedly inserted into the inner side of the core shaft body, one end of the sliding column is slidably engaged with the inner side of the slide groove, one end of the spring is fixedly connected to the sliding column, the end of the spring away from the sliding column is fixedly connected to the slide groove, one end of the clamping plate is fixedly connected to the sliding column, the outer side of the clamping plate is movably engaged with the inner side of the clamping groove, the two end parts of the screw are rotatably engaged with the inner side of the cylindrical groove, one end of the movable disk is threadedly sleeved on the outer side of the screw, one end of the bolt is threadedly installed on the top of the movable disk, and one end of the bolt threadably penetrates the core shaft body and is threadedly installed on the inner side of the connecting hole.

[0006] Preferably, a symmetrically distributed strong magnet is fixedly mounted on the top of the movable disk, a symmetrically distributed suction groove is opened on the top surface of the cylindrical groove, and one end of the strong magnet is movably inserted into the inner side of the suction groove.

[0007] Preferably, symmetrically distributed guide blocks are fixedly mounted on the outer side of the movable plate, and the inner wall of the cylindrical groove is provided with guide grooves corresponding to the guide blocks, and one end of the guide block is slidably engaged with the inner side of the guide groove.

[0008] Preferably, a socket corresponding to the bolt is formed on the bottom surface of the spindle body.

[0009] Preferably, a turning handle is rotatably inserted in the middle position of the bottom surface of the spindle body, and one end of the turning handle is fixedly connected to the screw rod.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] By cooperating with fixed columns, slide grooves, springs, sliding columns, card plates, screws, movable plates, guide blocks, guide grooves, bolts, strong magnets, suction grooves, and sockets, the bolts are installed in the connecting holes to splice the mandrel body and the connecting parts together, thereby achieving double connection using the card plates and bolts, thereby making the splicing of the mandrel body and the connecting parts more stable and firm, with an ingenious structure and convenient splicing. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a schematic diagram of the structure of the utility model.

[0014] Figure 2 It is a schematic cross-sectional view of the upper structure of the mandrel body of the utility model.

[0015] Figure 3 for Figure 2 A is an enlarged view of the structure.

[0016] Figure 4 It is a top view cross-sectional schematic diagram of the lower structure of the mandrel body of the utility model.

[0017] Figure 5 It is a bottom-view cross-sectional schematic diagram of the lower structure of the mandrel body of the utility model.

[0018] In the figure: 1. spindle body; 2. connecting part; 11. fixed column; 12. slide groove; 13. sliding column; 14. spring; 15. clamping plate; 16. clamping groove; 17. cylindrical groove; 18. screw; 19. moving plate; 20. bolt; 21. connecting hole; 22. strong magnet; 23. suction groove; 24. guide block; 25. guide groove; 26. turning handle; 27. socket. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Example: Figure 1-5 As shown, the utility model provides a technical solution: a high-precision spindle that is easy to splice, comprising a spindle body 1, a connecting piece 2 is slidably installed on the outer upper part of the spindle body 1, a symmetrically distributed fixed column 11 is arranged on the outer upper part of the spindle body 1, a slide groove 12 is provided on the inner side of the fixed column 11, a sliding column 13 is provided on the inner side of the slide groove 12, a spring 14 is provided at one end of the sliding column 13, a clamping plate 15 is provided at the end of the sliding column 13 away from the spring 14, the bottom surface of the clamping plate 15 is in contact with the connecting piece 2, a clamping groove 16 corresponding to the clamping plate 15 is provided on the outer side of the spindle body 1, a cylindrical groove 17 is provided on the lower inner side of the spindle body 1, a screw 18 is provided inside the cylindrical groove 17, a movable disk 19 is provided on the outer side of the screw 18, an array-distributed bolt 20 is provided at one end of the movable disk 19, and a connecting hole 21 corresponding to the bolt 20 is provided on the bottom surface of the connecting piece 2.

[0021] The fixed column 11 is fixedly inserted on the inner side of the spindle body 1, one end of the sliding column 13 is slidably clamped on the inner side of the slide groove 12, one end of the spring 14 is fixedly connected to the sliding column 13, and the end of the spring 14 away from the sliding column 13 is fixedly connected to the slide groove 12, one end of the clamping plate 15 is fixedly connected to the sliding column 13, and the outer side of the clamping plate 15 is movably clamped on the inner side of the clamping groove 16, the two ends of the screw rod 18 are rotatably clamped on the inner side of the cylindrical groove 17, one end of the moving disk 19 is threadedly sleeved on the outer side of the screw rod 18, one end of the bolt 20 is threadedly installed on the top of the moving disk 19, and one end of the bolt 20 threadably penetrates the spindle body 1 and is threadedly installed on the inner side of the connecting hole 21.

[0022] A symmetrically distributed strong magnet 22 is fixedly mounted on the top of the moving disk 19 , and a symmetrically distributed suction groove 23 is opened on the top surface of the cylindrical groove 17 , and one end of the strong magnet 22 is movably inserted into the inner side of the suction groove 23 .

[0023] By adopting the above technical solution, the strong magnet 22 is arranged to be stuck in the suction groove 23 to strengthen the stability of the moving disk 19, thereby preventing the moving disk 19 from falling off when it is stationary for a long time.

[0024] The outer side of the moving plate 19 is fixedly mounted with symmetrically distributed guide blocks 24 , and the inner wall of the cylindrical groove 17 is provided with guide grooves 25 corresponding to the guide blocks 24 , and one end of the guide block 24 is slidably engaged with the inner side of the guide groove 25 .

[0025] By adopting the above technical solution, the guide block 24 is provided to slide in the guide groove 25 to guide and limit the movable plate 19.

[0026] The bottom surface of the spindle body 1 is provided with an insertion hole 27 corresponding to the bolt 20 .

[0027] By adopting the above technical solution, the insertion hole 27 is provided to facilitate the insertion of a screwdriver to rotate the bolt 20 so that the bolt 20 is installed in the connecting hole 21 .

[0028] A turning handle 26 is rotatably inserted in the middle of the bottom surface of the core shaft body 1 , and one end of the turning handle 26 is fixedly connected to the screw rod 18 .

[0029] By adopting the above technical solution, the screw rod 18 can be easily rotated by providing the turning handle 26 .

[0030] Working principle: First, slide the connecting piece 2 onto the spindle body 1. During this process, the sliding column 13 is pushed by the spring 14 in the slide groove 12 on the fixed column 11. The sliding column 13 slides in the slide groove 12 to drive the card plate 15 to slide, thereby clamping the connecting piece 2. Then, the screw 18 is rotated to drive the movable plate 19 to rotate. The movable plate 19 has a guide block 24 that slides in the guide groove 25 to guide it, and moves upward by relying on the thread. The movable plate 19 drives the bolt 20 to move upward, and then the bolt 20 penetrates the spindle body 1 while the strong magnet 22 is stuck in the suction groove 23 to fix the movable plate 19. Then, a screwdriver is used to pass through the jack 27 and contact the bolt 20, and the bolt 20 is installed in the connecting hole 21 to splice the spindle body 1 and the connecting piece 2 together, thereby realizing double connection by using the card plate 15 and the bolt 20, thereby making the splicing of the spindle body 1 and the connecting piece 2 more stable and firm, with a clever structure and convenient splicing.

[0031] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A high-precision mandrel that is easy to splice, comprising a mandrel body (1), characterized in that: A connecting piece (2) is slidably mounted on the upper outer side of the spindle body (1), a symmetrically distributed fixing column (11) is arranged on the upper outer side of the spindle body (1), a sliding groove (12) is provided on the inner side of the fixing column (11), a sliding column (13) is arranged on the inner side of the sliding groove (12), a spring (14) is arranged at one end of the sliding column (13), a clamping plate (15) is arranged at the end of the sliding column (13) away from the spring (14), and the bottom surface of the clamping plate (15) and the connecting piece are rotatable. The core shaft body (1) is in contact with the connecting member (2), a groove (16) corresponding to the clamping plate (15) is provided on the outer side of the core shaft body (1), a cylindrical groove (17) is provided on the inner side of the lower part of the core shaft body (1), a screw rod (18) is provided inside the cylindrical groove (17), a movable disk (19) is provided on the outer side of the screw rod (18), and an array of bolts (20) are provided at one end of the movable disk (19), and a connecting hole (21) corresponding to the bolt (20) is provided on the bottom surface of the connecting member (2).

2. A high-precision mandrel that is easy to splice as claimed in claim 1, characterized in that: The fixed column (11) is fixedly inserted into the inner side of the spindle body (1), one end of the sliding column (13) is slidably clamped in the inner side of the slide groove (12), one end of the spring (14) is fixedly connected to the sliding column (13), one end of the spring (14) away from the sliding column (13) is fixedly connected to the slide groove (12), one end of the clamping plate (15) is fixedly connected to the sliding column (13), the outer side of the clamping plate (15) is movably clamped in the inner side of the clamping groove (16), the two ends of the screw rod (18) are rotatably clamped in the inner side of the cylindrical groove (17), one end of the movable plate (19) is threadedly sleeved on the outer side of the screw rod (18), one end of the bolt (20) is threadedly installed on the top end of the movable plate (19), and one end of the bolt (20) is threadedly penetrated through the spindle body (1) and is threadedly installed in the inner side of the connecting hole (21).

3. A high-precision mandrel for easy splicing as claimed in claim 1, characterized in that: A symmetrically distributed strong magnet (22) is fixedly mounted on the top of the movable disk (19), and a symmetrically distributed suction groove (23) is opened on the top surface of the columnar groove (17), and one end of the strong magnet (22) is movably inserted into the inner side of the suction groove (23).

4. A high-precision mandrel that is easy to splice as claimed in claim 3, characterized in that: The outer side of the movable plate (19) is fixedly provided with symmetrically distributed guide blocks (24), the inner wall of the columnar groove (17) is provided with a guide groove (25) corresponding to the guide block (24), and one end of the guide block (24) is slidably engaged with the inner side of the guide groove (25).

5. A high-precision mandrel for easy splicing as claimed in claim 2, characterized in that: The bottom surface of the spindle body (1) is provided with an insertion hole (27) corresponding to the bolt (20).

6. A high-precision mandrel for easy splicing as claimed in claim 5, characterized in that: A turning handle (26) is rotatably inserted in the middle of the bottom surface of the spindle body (1), and one end of the turning handle (26) is fixedly connected to the screw rod (18).

Images