A compression rotor clamp with friction drive face

Abstract

This utility model provides a rotor clamping fixture with a friction drive surface, relating to the field of clamping technology. It includes a base, with sliders mounted at both ends of the upper surface of the base. A transmission mechanism is installed between the base and the sliders. Fixed rods are mounted on the upper ends of the sliders, with rotating rods mounted on the adjacent ends of the fixed rods. Connecting blocks are mounted on the adjacent ends of the rotating rods, and engaging holes are provided on the adjacent sides of the connecting blocks. In this utility model, the transmission mechanism drives a first motor to rotate a forward and reverse lead screw, using threaded transmission to automatically move the slider within a groove. The clamping position can be precisely adjusted according to the rotor size without manual operation. Compared to traditional manual adjustment methods, this avoids clamping instability caused by human error, significantly improving adaptability and clamping stability for rotors of different specifications.

Description

Technical Field

[0001] This utility model relates to the field of clamping technology, and more specifically, to a clamping rotor clamp with a friction drive surface. Background Technology

[0002] A rotor is a rotating body supported by bearings, and it is often the main rotating component in power machinery and working machinery. During the machining process of a rotor, it is often necessary to clamp and press it using a fixture. For example, the permanent magnet synchronous motor rotor winding fixture proposed in application number "CN201921222678.9" includes a motor rotor, a left fixture support, a right fixture support, a left fixture base, a right fixture base, a left auxiliary support, a right auxiliary support, and a rotating ferrule. The left side of the motor rotor is connected to the left fixture support. The left bracket rotates inside the motor rotor. The inner side of the rotating sleeve is connected to the left bracket of the clamp, and the outer side of the rotating sleeve is connected to the left bracket of the clamp via a bearing. The rotating sleeve rotates inside the left bracket of the clamp. The outer side of the rotating sleeve has a concave ring. Two sliding blocks are connected inside the left bracket of the clamp. The sliding blocks slide inside the left bracket of the clamp. The outer side of the sliding blocks is connected to the left bracket of the clamp. The sliding blocks slide inside the left bracket of the clamp. A spring is connected to one side of the sliding blocks, and a concave ring is connected to the other side of the sliding blocks. The sliding blocks slide inside the concave ring. A crank handle is located on the left side of the rotating sleeve.

[0003] However, in the above technical solutions, the movement and adjustment of the slider depends on manual operation, making it difficult to automatically adjust the clamping position according to the rotor size, resulting in insufficient clamping stability and low efficiency. At the same time, the power transmission structure is only achieved through the cooperation of the sliding block and the concave ring, which cannot directly drive the rotor to rotate. During processing, the user needs to manually control the rotation, which makes it impossible to accurately control the rotor's rotation angle. In processing scenarios such as winding and grinding that require angle positioning, angle deviation can seriously affect the processing accuracy. Therefore, we propose a rotor clamping fixture with a friction drive surface to solve the above problems. Utility Model Content

[0004] The main purpose of this utility model is to provide a clamping rotor fixture with a friction drive surface, which solves the problem that the movement and adjustment of the slider depends on manual operation, making it difficult to automatically adjust the clamping position according to the rotor size, resulting in insufficient clamping stability and low efficiency. At the same time, the power transmission structure is only realized through the cooperation of the sliding block and the concave ring, which cannot directly drive the rotor to rotate. During processing, the user needs to manually control the rotation, which makes it impossible to accurately control the rotation angle of the rotor. In processing scenarios such as winding and grinding that require angle positioning, angle deviation can seriously affect the processing accuracy.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A rotor clamping fixture with a friction drive surface includes a base. Sliders are mounted on both ends of the upper surface of the base. A transmission mechanism is installed between the base and the sliders. Fixed rods are mounted on the upper ends of the sliders, with rotating rods mounted on their adjacent ends. Connecting blocks are mounted on their adjacent ends of the rotating rods. Engaging holes are provided on the adjacent sides of the connecting blocks, and these engaging holes overlap. The transmission mechanism includes a sliding groove that extends through the middle of the upper surface of the base. The lower ends of the sliders are movably mounted inside the sliding groove. Positive and negative lead screws are movably mounted through the lower end of the sliding groove, with their shafts threaded through the sliders. A first motor is mounted on one lower side of the base. The output end of the first motor is connected to the positive and negative lead screws. A rotating shaft is movably installed through the upper part of the base. The shaft is movably installed through the interior of the slider. A drive wheel is movably installed through both ends of the shaft, and the drive wheels are movably located at the lower ends of the sliders on the side closer to each other. A driven wheel is sleeved on the outer side of the rotating rod. The drive wheel and the driven wheel are in contact with each other. Several guide grooves are provided on the outer side of the rotating shaft. Several guide blocks are installed inside the drive wheels, and the guide blocks are respectively engaged in the guide grooves. A second motor is installed on the upper part of the base away from the first motor. The output end of the second motor is connected to the rotating shaft. The surfaces of the drive wheel and the driven wheel are respectively provided with friction layers, and the surfaces of the friction layers are provided with several micro-protrusions.

[0007] Preferably, a second rotating block is installed at one end of the rotating rod near the fixed rod, and the second rotating block is respectively engaged and installed inside the fixed rod.

[0008] Preferably, transmission rods are installed on the opposite sides of the connecting blocks, and flanges are installed between the transmission rods and the rotating rods, with the flanges connected by bolts.

[0009] Preferably, guide rods are installed at both the front and rear ends of the slide groove, and the rods of the guide rods are movably installed inside the slide block.

[0010] Preferably, the upper part of the slider is provided with guide holes, and the inside of the guide holes and the end near the drive wheel is provided with engagement grooves. The first rotating blocks are engaged and installed inside the engagement grooves. The ends of the first rotating blocks that are close to each other are connected to the drive wheel. The inside of the first rotating blocks and the drive wheel is provided with connecting holes.

[0011] Preferably, the shaft is movably installed through the guide hole and the connecting hole, respectively, and the guide block is installed inside the connecting hole.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] (1) In this utility model, the transmission mechanism drives the positive and negative lead screws to rotate through the first motor, and uses the thread transmission to drive the slider to move automatically in the groove. The clamping position can be precisely adjusted according to the rotor size without manual operation. Compared with the traditional manual adjustment method, it avoids the problem of unstable clamping caused by human operation error, and significantly improves the adaptability and clamping stability of rotors of different specifications.

[0014] (2) In this utility model, the second motor drives the rotating shaft to rotate. Through the cooperation of the guide groove and the guide block, the driving wheel rotates synchronously and engages with the driven wheel for transmission. The friction layer and the micro-protrusions on its surface form a friction driving surface to enhance the driving force and directly drive the rotor in the connecting block and the locking hole to rotate. This changes the traditional method of relying on manual control of rotation and realizes the automatic control of rotor rotation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a clamping rotor fixture with a friction drive surface according to the present invention.

[0016] Figure 2 This is a front view schematic diagram of a clamping rotor fixture with a friction drive surface according to the present invention;

[0017] Figure 3 This is a side view of a clamping rotor fixture with a friction drive surface according to the present invention.

[0018] Figure 4 This utility model relates to a rotor clamping fixture with a friction drive surface. Figure 2 Schematic diagram of the cross-sectional structure at point AA;

[0019] Figure 5 This utility model relates to a rotor clamping fixture with a friction drive surface. Figure 3 Schematic diagram of the cross-sectional structure at point BB;

[0020] Figure 6 This utility model relates to a rotor clamping fixture with a friction drive surface. Figure 5 Enlarged structural diagram at point C.

[0021] In the diagram: 1. Base; 2. Slider; 3. Transmission mechanism; 301. Slide groove; 302. Lead screw; 303. First motor; 304. Guide rod; 305. Rotating shaft; 306. Second motor; 307. Guide hole; 308. Engaging groove; 309. First rotating block; 310. Connecting hole; 311. Guide groove; 312. Guide block; 313. Driving wheel; 314. Driven wheel; 4. Fixed rod; 5. Transmission rod; 6. Connecting block; 7. Rotating rod; 8. Flange; 9. Second rotating block; 10. Engaging hole. Detailed Implementation

[0022] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0023] like Figures 1 to 6As shown, this utility model embodiment proposes a clamping rotor fixture with a friction drive surface, including a base 1. Sliders 2 are respectively installed at both ends of the upper surface of the base 1. A transmission mechanism 3 is installed between the base 1 and the sliders 2. Fixed rods 4 are respectively installed on the upper ends of the sliders 2, close to each other. Rotating rods 7 are respectively installed on the close ends of the fixed rods 4. Connecting blocks 6 are respectively installed on the close ends of the rotating rods 7. Engaging holes 10 are respectively provided on the close ends of the connecting blocks 6, and the engaging holes 10 overlap. The transmission mechanism 3 includes a slide groove 301, which extends through the middle of the upper surface of the base 1. The lower ends of the sliders 2 are movably installed inside the slide groove 301. Positive and negative lead screws 302 are movably installed through the lower end of the slide groove 301. The rods of the positive and negative lead screws 302 are respectively threaded through the interior of the sliders 2. A first motor 303 is installed on one lower side of the base 1. The output end is connected to the positive and negative lead screw 302. A rotating shaft 305 is movably installed through the upper part of the base 1. The shaft 305 is movably installed through the inside of the slider 2. The two ends of the shaft 305 are movably installed with driving wheels 313, which are located at the lower ends of the slider 2 on the side closer to each other. A driven wheel 314 is sleeved on the outside of the rotating rod 7. The driving wheel 313 and the driven wheel 314 are in contact. The shaft 305 has several guide grooves 311 on the outside. Several guide blocks 312 are installed inside the driving wheel 313. The guide blocks 312 are engaged inside the guide grooves 311. A second motor 306 is installed on the upper part of the base 1 on the side away from the first motor 303. The output end of the second motor 306 is connected to the rotating shaft 305. The surfaces of the driving wheel 313 and the driven wheel 314 are respectively provided with friction layers, and the surfaces of the friction layers are provided with several micro-protrusions.

[0024] like Figures 2 to 6As shown, in another embodiment of this utility model, a second rotating block 9 is installed at one end of the rotating rod 7 near the fixed rod 4. The second rotating blocks 9 are respectively engaged and installed inside the fixed rod 4. A transmission rod 5 is installed on the side of the connecting block 6 that is far away from each other. A flange 8 is installed between the transmission rod 5 and the rotating rod 7. The flanges 8 are connected by bolts. Guide rods 304 are installed at the front and rear ends of the slide groove 301. The rods of the guide rods 304 are respectively movably installed inside the slider 2. The upper end of the slider 2 is respectively inserted through... A guide hole 307 is provided, and a locking groove 308 is provided inside the guide hole 307 and at one end near the drive wheel 313. A first rotating block 309 is locked inside the locking groove 308. The ends of the first rotating blocks 309 that are close to each other are connected to the drive wheel 313. A connecting hole 310 is provided through the interior of the first rotating block 309 and the drive wheel 313. The shaft of the rotating shaft 305 is movably installed through the interior of the guide hole 307 and the connecting hole 310. The guide block 312 is installed inside the connecting hole 310.

[0025] The user places the rotor between the engagement holes 10 and then starts the first motor 303, which drives the positive and negative lead screws 302 to rotate. The positive and negative lead screws 302 then control the slider 2 to move synchronously towards the rotor through the thread, so that both ends of the rotor are engaged in the engagement holes 10. This achieves the pressing and positioning of the rotor through the engagement holes 10 on both sides, improving the stability of the rotor. At the same time, during the movement of the slider 2, the slider 2 pushes the drive wheel 31 through the first rotating block 309. 3. Move the drive wheel 313 so that the guide block 312 moves along the guide groove 311. Then, when it is necessary to control the rotor to rotate, the second motor 306 can control the rotating shaft 305 to rotate. The rotating shaft 305 can then control the drive wheel 313 to rotate through the guide groove 311 and the guide block 312. The drive wheel 313 then drives the driven wheel 314 to rotate through the friction drive surface. The driven wheel 314 can then drive the rotating rod 7 and the rotor to rotate, thereby realizing the adjustment of the rotor's machining surface.

[0026] The guide rod 304 inside the slide groove 301 passes through the interior of the slider 2, providing linear guidance for the movement of the slider 2, counteracting the radial force when the positive and negative lead screws 302 are driven, preventing the slider 2 from tilting or jamming during movement, ensuring that the two fixed rods 4 are aligned synchronously, keeping the central axis of the locking hole 10 coaxial, and improving clamping stability.

[0027] The flange 8 bolt connection structure allows for quick disassembly and replacement of the connecting block 6, adapting to rotors of different specifications and expanding the versatility of the fixture. Then, during rotation, the second rotating block 9 engages and rotates within the fixed rod 4, ensuring the stability of the rotation axis and avoiding machining errors caused by rotor wobbling.

[0028] The driving wheel 313 and the driven wheel 314 are made of thermoplastic rubber (TPR), which has both elasticity and wear resistance, and strong temperature adaptability, thus avoiding drive failure due to heat generation during processing. The friction layer is made of rubber-based composite material, which can provide stronger driving force and ensure more reliable transmission between the driving wheel 313 and the driven wheel 314. Then, the micro-protrusion structure on its surface is used to prevent slippage during rotation.

[0029] The working principle of this type of clamping rotor fixture with friction drive surface:

[0030] In use, the user first places the rotor between the engagement holes 10, then starts the first motor 303, which drives the positive and negative lead screws 302 to rotate. The positive and negative lead screws 302 then control the slider 2 to move synchronously towards the rotor through the thread, ultimately causing both ends of the rotor to engage with the engagement holes 10. This achieves compression and positioning of the rotor through the engagement holes 10 on both sides, improving the stability of the rotor. Simultaneously, as the slider 2 moves, it pushes the active rotor through the first rotating block 309. The drive wheel 313 moves, causing the guide block 312 to move along the guide groove 311. When it is necessary to control the rotor to rotate, the second motor 306 can control the rotating shaft 305 to rotate. The rotating shaft 305 can then control the drive wheel 313 to rotate through the guide groove 311 and the guide block 312. The drive wheel 313 then drives the driven wheel 314 to rotate through the friction drive surface. The driven wheel 314 can then drive the rotating rod 7 and the rotor to rotate, thereby adjusting the machining surface of the rotor.

[0031] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.

Claims

1. A rotor clamping fixture with a friction drive surface, comprising a base (1), characterized in that: The upper surface of the base (1) is provided with sliders (2) at both ends. A transmission mechanism (3) is installed between the base (1) and the sliders (2). A fixing rod (4) is installed on the upper end of the sliders (2) and on the side close to each other. A rotating rod (7) is installed on the side close to each other of the fixing rods (4). A connecting block (6) is installed on the side close to each other of the rotating rods (7). A locking hole (10) is provided on the side close to each other of the connecting blocks (6). The locking holes (10) overlap with each other. The transmission mechanism (3) Includes a slide groove (301), which is disposed through the middle of the upper surface of the base (1). The lower ends of the slider (2) are respectively movably installed at both ends inside the slide groove (301). A positive and negative lead screw (302) is movably installed through the lower end inside the slide groove (301). The rods of the positive and negative lead screw (302) are respectively threaded through the inside of the slider (2). A first motor (303) is installed at the lower end of one side of the base (1). The output end of the first motor (303) is connected to the positive and negative lead screw (302). The base (1) is connected to the upper part of the base, and a rotating shaft (305) is movably installed through the upper part of the base. The shaft (305) is movably installed through the upper part of the slider (2). The two ends of the shaft (305) are respectively movably installed with driving wheels (313), and the driving wheels (313) are respectively located at the lower ends of the slider (2) on the side closer to each other. A driven wheel (314) is sleeved on the outer side of the rotating rod (7). The driving wheel (313) and the driven wheel (314) are in contact with each other. The rotating shaft (305) is connected to the upper part of the base. The outer side of the rod body is provided with several guide grooves (311), and several guide blocks (312) are respectively installed inside the drive wheel (313). The guide blocks (312) are respectively engaged and installed inside the guide grooves (311). A second motor (306) is installed on the upper end of the side of the base (1) away from the first motor (303). The output end of the second motor (306) is connected to the rotating shaft (305). The surfaces of the drive wheel (313) and the driven wheel (314) are respectively provided with friction layers, and the surface of the friction layers is provided with several micro protrusions.

2. The clamping rotor fixture with a friction drive surface according to claim 1, characterized in that: The rotating rod (7) is equipped with a second rotating block (9) at one end near the fixed rod (4), and the second rotating block (9) is respectively engaged and installed inside the fixed rod (4).

3. A clamping rotor fixture with a friction drive surface according to claim 1, characterized in that: Transmission rods (5) are installed on opposite sides of the connecting blocks (6), and flanges (8) are installed between the transmission rods (5) and the rotating rods (7), and the flanges (8) are connected by bolts.

4. A clamping rotor fixture with a friction drive surface according to claim 1, characterized in that: Guide rods (304) are installed at the front and rear ends of the inside of the slide (301), and the rods of the guide rods (304) are movably installed inside the slider (2).

5. A clamping rotor fixture with a friction drive surface according to claim 1, characterized in that: The upper part of the slider (2) is provided with guide holes (307). The guide holes (307) are provided with engagement grooves (308) at the end near the drive wheel (313). The engagement grooves (308) are respectively engaged with and installed with first rotating blocks (309). The ends of the first rotating blocks (309) that are close to each other are connected to the drive wheel (313). The first rotating blocks (309) and the drive wheel (313) are provided with connecting holes (310).

6. A clamping rotor fixture with a friction drive surface according to claim 5, characterized in that: The shaft (305) is movably installed through the guide hole (307) and the connecting hole (310), respectively, and the guide block (312) is installed inside the connecting hole (310).

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