Driving shaft clamping and positioning device

Abstract

The driving shaft clamping and positioning device comprises a machine tool body, a rotating cylinder is arranged at the position, close to the right side, of the upper portion of the machine tool body, the position, close to the upper portion, of the right wall of the machine tool body, the right wall of a driving shaft is fixedly connected with the left wall of the rotating cylinder, and the inner wall of the left side of the rotating cylinder is movably connected with a circular truncated cone. A plurality of evenly-distributed movable grooves are formed in the position, close to the right side, of the inner wall of the rotating cylinder, clamping blocks are movably connected into the movable grooves, the left walls of the clamping blocks are obliquely arranged and matched with the circular truncated cones, T-shaped grooves are formed in the left walls of the clamping blocks, and T-shaped blocks are arranged in the T-shaped grooves. By means of a series of structures, the device has the advantages of being convenient to clamp, stable in clamping and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of driving shaft clamping and positioning, and specifically relates to a driving shaft clamping and positioning device. Background Art

[0002] The driving shaft is a kind of working device of a loader, which is a device that can improve the smoothness of the loader and enable the driving wheels to rotate at different angular velocities. There are problems such as inconvenient clamping and insufficient clamping stability in the use of the existing driving shaft clamping and positioning device. For this reason, we propose a driving shaft clamping and positioning device. Content of the Utility Model

[0003] The technical problem solved by the utility model is to overcome the defects of the prior art and provide a driving shaft clamping and positioning device.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] A driving shaft clamping and positioning device includes a machine tool body. A rotating cylinder is arranged above the machine tool body near the right side. The right wall of the driving shaft near the upper part of the right wall of the machine tool body is fixedly connected to the left wall of the rotating cylinder. A frustum is movably connected to the inner left wall of the rotating cylinder. A plurality of uniformly distributed movable grooves are formed in the inner wall of the rotating cylinder near the right side. A clamping block is movably connected in the movable groove. The left wall of the clamping block is inclined to match the frustum. A T-shaped groove is formed in the left wall of the clamping block. A T-shaped block is arranged in the T-shaped groove, and the left wall of the T-shaped block is fixedly connected to the side wall of the frustum. A circular block is fixedly connected to the right wall of the frustum, and a plurality of uniformly distributed tapered blocks are fixedly connected to the right wall of the circular block. A support plate is fixedly connected to the top of the machine tool body near the right side. A positioning tube is fixedly connected to the left wall of the support plate near the upper part. A movable cylinder is movably connected in the positioning tube. The left wall of the movable cylinder is movably connected to a tapered top block through a bearing. A threaded rod is arranged in the movable cylinder, and a thread matching the threaded rod is formed in the inner wall of the movable cylinder. The right end of the threaded rod is movably connected to the left wall of the support plate through a bearing. An empty groove is formed in the support plate near the upper part, and a rotation positioning mechanism is arranged in the empty groove.

[0006] Preferably, the inner wall of the T-shaped groove and the T-shaped block are both polished.

[0007] Preferably, a limiting rod is fixedly connected to the left wall of the frustum. A limiting tube is sleeved on the left end of the limiting rod. A spring is fixedly connected to the left end of the limiting rod, and both the left ends of the limiting tube and the spring are fixedly connected to the inner left wall of the rotating cylinder.

[0008] Preferably, blind holes are formed in the clamping block near the left and right sides. Fixed rods are arranged in the blind holes, and one end of each fixed rod is fixedly connected to the inner wall of the movable groove.

[0009] Preferably, both side walls of the fixing rod are fixedly connected with first limit blocks, and the inner wall of the blind hole is provided with limit grooves matching with the first limit blocks.

[0010] Preferably, the top and bottom of the movable cylinder are fixedly connected to a second limit block near the right side, and the top and bottom of the inner cavity of the positioning tube are provided with a limit groove matching the second limit block.

[0011] Preferably, the rotation positioning mechanism includes a worm wheel, the right end of the threaded rod passes through the inner ring of the bearing, extends into the empty slot and is fixedly connected to the left wall of the worm wheel, a worm is meshed with the rear wall of the worm wheel, the top and bottom ends of the worm are movably connected to the top and bottom of the inner cavity of the empty slot through bearings respectively, the top end of the worm passes through the inner ring of the bearing and extends to above the support plate, and the top end of the worm is fixedly connected to a rotating disk.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] In the present technical solution, through the mutual cooperation between the threaded rod, the movable cylinder and the second limit block, the movable cylinder can drive the conical top block to move to the left to hold the material. At the same time, through the mutual cooperation between the truncated table and the T-shaped block, when the material pushes the truncated table to the left, several clamping blocks can move to the middle to clamp the material, thereby realizing convenient clamping of the device. At the same time, the multi-directional clamping method between the conical top block and several clamping blocks enables the workpiece to receive lateral and multiple longitudinal supporting forces, thereby making the workpiece clamping more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a three-dimensional diagram of the rotating drum of the utility model;

[0016] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0017] Figure 4 for Figure 1 Enlarged view of point B in the middle;

[0018] Figure 5 for Figure 3 Enlarged view of point C in the middle;

[0019] Figure 6 for Figure 3 Enlarged view of point D in the middle.

[0020] Reference numerals in the figures: 1, machine tool body; 2, conical top block; 3, rotating disk; 4, support plate; 5, circular block; 6, clamping block; 7, frustum; 8, rotating cylinder; 9, worm; 10, worm gear; 11, movable cylinder; 12, threaded rod; 13, second limit block; 14, positioning tube; 15, spring; 16, limit tube; 17, limit rod; 18, fixed rod; 19, first limit block; 20, T-shaped block. Detailed implementation manners

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figures 1-6The utility model provides a technical solution: a drive shaft clamping and positioning device, including a machine tool body 1, a rotating cylinder 8 is arranged above the machine tool body 1 near the right side, the right wall of the drive shaft near the top of the right wall of the machine tool body 1 is fixedly connected to the left wall of the rotating cylinder 8, a round table 7 is movably connected to the left inner wall of the rotating cylinder 8, a limit rod 17 is fixedly connected to the left wall of the round table 7, a limit tube 16 is sleeved on the left end of the limit rod 17, a spring 15 is fixedly connected to the left end of the limit rod 17, and the left ends of the limit tube 16 and the spring 15 are fixedly connected to the left inner wall of the rotating cylinder 8, a plurality of evenly distributed movable grooves are opened near the right side of the inner wall of the rotating cylinder 8, a clamping block 6 is movably connected in the movable groove, blind holes are opened on the clamping block 6 near the left and right sides, and a limit rod 17 is arranged in the blind hole. There is a fixed rod 18, one end of the fixed rod 18 is fixedly connected to the inner wall of the movable groove, the side walls on both sides of the fixed rod 18 are fixedly connected with the first limit block 19, and the inner wall of the blind hole is provided with a limit groove matching the first limit block 19, the left wall of the clamping block 6 is an inclined setting matching the round table 7, the left wall of the clamping block 6 is provided with a T-shaped groove, and a T-shaped block 20 is arranged in the T-shaped groove. The inner wall of the T-shaped groove and the T-shaped block 20 are both polished, and the left wall of the T-shaped block 20 is fixedly connected to the side wall of the round table 7, the right wall of the round table 7 is fixedly connected with a circular block 5, and the right wall of the circular block 5 is fixedly connected with a number of evenly distributed conical blocks, the top of the machine tool body 1 is fixedly connected with a support plate 4 near the right side, the left wall of the support plate 4 is fixedly connected with a positioning tube 14 near the top, and the positioning tube 14 A movable cylinder 11 is movably connected inside, and a second limit block 13 is fixedly connected to the top and bottom of the movable cylinder 11 near the right side, and limit grooves matching the second limit block 13 are provided at the top and bottom of the inner cavity of the positioning tube 14. The left wall of the movable cylinder 11 is movably connected with a conical top block 2 through a bearing. A threaded rod 12 is provided in the movable cylinder 11, and a thread matching the threaded rod 12 is provided on the inner wall of the movable cylinder 11. The right end of the threaded rod 12 is movably connected to the left wall of the support plate 4 through a bearing. An empty groove is provided near the top of the support plate 4, and a rotation positioning mechanism is provided in the empty groove. The rotation positioning mechanism includes a worm gear 10, and the right end of the threaded rod 12 passes through the inner ring of the bearing, extends into the empty groove and is fixedly connected to the left wall of the worm gear 10, and the rear wall of the worm gear 10 is meshed There is a worm 9, the top and bottom ends of the worm 9 are movably connected to the top and bottom of the inner cavity of the hollow groove through bearings respectively, the top of the worm 9 passes through the inner ring of the bearing and extends to the top of the support plate 4, and the top of the worm 9 is fixedly connected to the rotating disk 3. Through the mutual cooperation between the threaded rod 12, the movable cylinder 11 and the second limit block 13, the movable cylinder 11 can drive the conical top block 2 to move to the left to support the material. At the same time, through the mutual cooperation between the truncated table 7 and the T-shaped block 20, when the material pushes the truncated table 7 to the left, several clamping blocks 6 move to the middle to clamp the material, thereby realizing convenient clamping of the device. At the same time, the multi-directional clamping method between the conical top block 2 and several clamping blocks 6 enables the workpiece to receive lateral and multiple longitudinal supporting forces, thereby making the workpiece clamping more stable.

[0023] Working principle: During installation, place the workpiece horizontally and insert one end into the rotating cylinder 8. Rotate the rotating disk 3 to drive the worm 9 to rotate. The worm 9 drives the worm gear 10 to rotate, and the worm gear 10 drives the threaded rod 12 to rotate. At this time, the movable cylinder 11 cannot rotate under the action of the second limit block 13 and then drives the conical top block 2 to move leftward to push the material. The material moves leftward and pushes the frustum 7. During the movement of the frustum 7, through a number of T-shaped blocks 20, a number of clamping blocks 6 are driven to move towards the middle until the material is clamped, so as to realize the clamping of the material by the clamping force from the horizontal direction and a number of longitudinal directions, which is more convenient to use and the clamping is stable.

[0024] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A driving shaft clamping and positioning device, comprising a machine tool body (1), characterized in that: Above the machine tool body (1) and near the right side, there is a rotating cylinder (8). The right wall of the driving shaft near the upper part of the right wall of the machine tool body (1) is fixedly connected to the left wall of the rotating cylinder (8). Inside the left side inner wall of the rotating cylinder (8), there is a frustum (7) movably connected. Inside the inner wall of the rotating cylinder (8) near the right side, there are several uniformly distributed movable grooves. Inside the movable grooves, there are clamping blocks (6) movably connected. The left wall of the clamping block (6) is inclined to match the frustum (7). Inside the left wall of the clamping block (6), there is a T-shaped groove. Inside the T-shaped groove, there is a T-shaped block (20), and the left wall of the T-shaped block (20) is fixedly connected to the side wall of the frustum (7). The right wall of the frustum (7) is fixedly connected to a circular block (5), and several uniformly distributed conical blocks are fixedly connected to the right wall of the circular block (5). Near the right side of the top of the machine tool body (1), there is a support plate (4) fixedly connected. Near the upper part of the left wall of the support plate (4), there is a positioning tube (14) fixedly connected. Inside the positioning tube (14), there is a movable cylinder (11) movably connected. The left wall of the movable cylinder (11) is movably connected to a conical top block (2) through a bearing. Inside the movable cylinder (11), there is a threaded rod (12), and the inner wall of the movable cylinder (11) is provided with a thread matching the threaded rod (12). The right end of the threaded rod (12) is movably connected to the left wall of the support plate (4) through a bearing. Inside the support plate (4) near the upper part, there is an empty groove, and a rotating positioning mechanism is arranged inside the empty groove.

2. The clamping and positioning device for a drive shaft according to claim 1, characterized in that: The inner wall of the T-shaped groove and the T-shaped block (20) are both polished.

3. The clamping and positioning device for a drive shaft according to claim 1, wherein: The left wall of the frustum (7) is fixedly connected to a limiting rod (17). The left end of the limiting rod (17) is sleeved with a limiting tube (16). The left end of the limiting rod (17) is fixedly connected to a spring (15), and both the left end of the limiting tube (16) and the spring (15) are fixedly connected to the left side inner wall of the rotating cylinder (8).

4. A drive shaft clamping and positioning device according to claim 1, wherein: On the clamping block (6) near the left and right sides, there are blind holes. Inside the blind holes, there are fixing rods (18). One end of the fixing rod (18) is fixedly connected to the inner wall of the movable groove.

5. The clamping and positioning device for a drive shaft according to claim 4, characterized in that: On both side walls of the fixing rod (18), there are first limiting blocks (19) fixedly connected, and the inner wall of the blind hole is provided with a limiting groove matching the first limiting block (19).

6. The clamping and positioning device for a drive shaft according to claim 1, characterized in that: Near the right side of the top and bottom of the movable cylinder (11), there are second limiting blocks (13) fixedly connected, and on the top and bottom of the inner cavity of the positioning tube (14), there are limiting grooves matching the second limiting blocks (13).

7. The clamping and positioning device for a drive shaft according to claim 1, wherein: The rotating positioning mechanism includes a worm gear (10). The right end of the threaded rod (12) passes through the inner ring of the bearing and extends into the empty groove and is fixedly connected to the left wall of the worm gear (10). The rear wall of the worm gear (10) meshes with a worm (9). The top and bottom of the worm (9) are respectively movably connected to the top and bottom of the inner cavity of the empty groove through bearings. The top of the worm (9) passes through the inner ring of the bearing and extends above the support plate (4). The top of the worm (9) is fixedly connected to a rotating disk (3).

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