Assembling device for high-speed gear transmission main shaft

Abstract

The invention discloses an assembling device for a high-speed gear transmission main shaft, which comprises a base, and a first main shaft clamping device, a second main shaft clamping device and a gear clamping device which are arranged on the base in sequence, and the first main shaft clamping device and the second main shaft clamping device are fixed on the base; the gear clamping device is arranged on the base in a sliding mode and driven by the lead screw mechanism to move in the axial direction of the main shaft. A main shaft and a gear are fixed through the first main shaft clamping device, the second main shaft clamping device and the gear clamping device correspondingly, then the main shaft and the gear are automatically centered and aligned in the high-speed rotating process through a spherical rotor structure, and then the positions of the main shaft and the gear at the moment are locked; therefore, high-precision installation of the high-speed gear transmission main shaft is achieved.

Description

Technical Field

[0001] This invention relates to an assembly device, and more particularly to an assembly device for a high-speed gear transmission spindle, belonging to the field of spindle machining technology. Background Technology

[0002] High-speed gear-driven spindles have extremely high requirements for the installation precision of the gears on the spindle. Traditional spindle gear installation methods, when precision requirements are not high, can allow the gear's inner diameter to be larger than the spindle's outer diameter. This provides sufficient installation clearance between the gear's inner diameter and the spindle, facilitating gear installation. However, leaving sufficient clearance also means that the concentricity of the installed gear and spindle will have errors, which is unacceptable in high-speed gear-driven spindles, causing the finished spindle to fail to meet high-speed requirements. Furthermore, when the spindle gear's inner diameter is perfectly matched to the spindle's outer diameter without any clearance, the gear must be installed with the gear hole and spindle perfectly concentric and coaxial before pressure can be applied; otherwise, the gear's inner diameter or the spindle itself will be rendered unusable. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an assembly device for a high-speed gear transmission spindle, so as to achieve high-precision assembly of the high-speed gear transmission spindle.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: An assembly device for a high-speed gear-driven spindle includes a base and a first spindle clamping device, a second spindle clamping device, and a gear clamping device arranged sequentially on the base. The first spindle clamping device and the second spindle clamping device are fixed on the base, and the gear clamping device is slidably arranged on the base and driven by a lead screw mechanism to move along the spindle axis.

[0005] Furthermore, the first spindle clamping device and the second spindle clamping device include a spindle frame, a spindle rotor, and a spindle clamp. The lower end of the spindle frame is fixed to the upper side of the base. The main body of the spindle rotor is a disc structure, and the circumferential surface of the spindle rotor is a spherical structure. A circular through hole matching the spindle rotor is opened in the spindle frame, and the inner wall of the circular through hole is a concave spherical surface matching the spherical structure of the circumferential surface of the spindle rotor. The spindle rotor is set in the circular through hole of the spindle frame and can rotate in any direction within the circular through hole. A shaft hole matching the transmission spindle is opened at the center of the spindle rotor, and the spindle clamp is set at one end of the shaft hole of the spindle rotor.

[0006] Furthermore, the spindle clamp includes a fixed clamp, a movable clamp, and bolts. The fixed clamp is fixed to the side of the spindle rotor and located on one side of one end of the shaft hole. The movable clamp is disposed opposite to the fixed clamp on the other side of one end of the shaft hole. An arc-shaped groove matching the transmission spindle is provided on the opposite side of the fixed clamp and the movable clamp. A bolt hole is opened at each end of the fixed clamp and the movable clamp respectively. Two bolts pass through the bolt holes at both ends of the fixed clamp and the movable clamp respectively and are locked and fixed by nuts.

[0007] Furthermore, the first spindle clamping device and the second spindle clamping device also include a spindle rotor positioning mechanism. The spindle rotor positioning mechanism includes a spindle positioning plate and a spindle positioning cylinder. A vertical slide groove matching the spindle positioning plate is opened in the spindle frame, and the lower end of the vertical slide groove penetrates the inner wall of the circular through hole of the spindle frame. The spindle positioning plate is slidably disposed in the vertical slide groove. The upper side of the spindle positioning plate is connected to the spindle positioning cylinder and is driven by the spindle positioning cylinder to move up and down in the vertical direction in the vertical slide groove.

[0008] Furthermore, the gear clamping device includes a gear frame, a gear rotor, and a gear clamp. The lower end of the gear frame is slidably mounted on the upper side of the base. The main body of the gear rotor is a disc structure, and the circumferential surface of the gear rotor is a spherical structure. A circular through hole matching the gear rotor is opened in the gear frame, and the inner wall of the circular through hole is a concave spherical surface matching the spherical structure of the circumferential surface of the gear rotor. The gear rotor is set in the circular through hole of the gear frame and can rotate in any direction within the circular through hole. A shaft hole matching the transmission main shaft is opened at the center of the gear rotor, and the gear clamp is set in the shaft hole of the gear rotor.

[0009] Furthermore, the gear clamp includes a locking ring, the shaft hole of the gear rotor is a multi-stage stepped hole, the inner diameter of one end of the multi-stage stepped hole matches the outer diameter of the transmission main shaft, the inner diameter of the other end of the multi-stage stepped hole matches the maximum diameter of the gear, the shape of the middle step of the multi-stage stepped hole matches the side step structure of the gear, the inner wall of the other end of the multi-stage stepped hole is provided with an internal thread, and the outer side of the locking ring is provided with an external thread that matches the internal thread of the inner wall of the multi-stage stepped hole. When the gear is inserted into the multi-stage stepped hole along the other end of the multi-stage stepped hole, the locking ring gradually rotates into the multi-stage stepped hole through the external thread and the internal thread of the inner wall of the multi-stage stepped hole and locks and fixes the gear.

[0010] Furthermore, the gear rotor is provided with multiple guide rods on the side facing the second spindle clamping device. The guide rods are arranged along the axial direction of the transmission spindle and one end of the guide rod is fixed on the side of the gear rotor. The multiple guide rods are evenly distributed along the circumference of the gear rotor. The spindle rotor of the second spindle clamping device has multiple guide rod through holes corresponding to the guide rods. The other ends of the multiple guide rods are slidably arranged in the multiple guide rod through holes of the spindle rotor of the second spindle clamping device.

[0011] Furthermore, the gear clamping device also includes a gear rotor positioning mechanism, which includes a gear positioning plate and a gear positioning cylinder. A vertical slide groove matching the gear positioning plate is opened in the gear frame, and the lower end of the vertical slide groove penetrates the inner wall of the circular through hole of the gear frame. The gear positioning plate is slidably disposed in the vertical slide groove, and the upper side of the gear positioning plate is connected to the gear positioning cylinder and driven by the gear positioning cylinder to move up and down in the vertical slide groove in the vertical direction.

[0012] Compared with the prior art, the present invention has the following advantages and effects: The present invention provides an assembly device for a high-speed gear transmission spindle. The spindle and gear are fixed by a first spindle clamping device, a second spindle clamping device and a gear clamping device respectively. Then, the spindle and gear are automatically aligned during high-speed rotation by a spherical rotor structure. The positions of the spindle and gear are then locked, thereby achieving high-precision installation of the high-speed gear transmission spindle. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of an assembly device for a high-speed gear transmission spindle according to the present invention.

[0014] Figure 2 This is a cross-sectional view of the second spindle clamping device of the present invention.

[0015] Figure 3 This is a schematic diagram of the second spindle clamping device of the present invention.

[0016] Figure 4 This is a schematic diagram of the gear clamping device of the present invention. Detailed Implementation

[0017] To illustrate in detail the technical solutions adopted by the present invention to achieve the intended technical objectives, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Furthermore, the technical means or technical features in the embodiments of the present invention can be replaced without creative effort. The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0018] like Figure 1 As shown, an assembly device for a high-speed gear transmission spindle of the present invention includes a base 1 and a first spindle clamping device 2, a second spindle clamping device 3 and a gear clamping device 4 arranged sequentially on the base 1. The first spindle clamping device 2 and the second spindle clamping device 3 are fixed on the base 1, and the gear clamping device 4 is slidably arranged on the base 1 and driven by a lead screw mechanism 5 to move along the spindle axis.

[0019] like Figure 2As shown, the first spindle clamping device 2 and the second spindle clamping device 3 include a spindle frame 6, a spindle rotor 7, and a spindle clamp 8. The lower end of the spindle frame 6 is fixed to the upper side of the base 1. The main body of the spindle rotor 7 is a disc structure, and the circumferential surface of the spindle rotor 7 is a spherical structure. A circular through hole matching the spindle rotor 7 is opened in the spindle frame 6, and the inner wall of the circular through hole is a concave spherical surface matching the spherical structure of the circumferential surface of the spindle rotor 7. The spindle rotor 7 is set in the circular through hole of the spindle frame 6 and can rotate in any direction within the circular through hole. A shaft hole matching the transmission spindle is opened in the center of the spindle rotor 7, and the spindle clamp 8 is set at one end of the shaft hole of the spindle rotor 7.

[0020] like Figure 3 As shown, the spindle clamp 8 includes a fixed clamp 9, a movable clamp 10, and bolts 11. The fixed clamp 9 is fixed to the side of the spindle rotor 7 and located on one side of one end of the shaft hole. The movable clamp 10 is disposed opposite to the fixed clamp 9 on the other side of one end of the shaft hole. The fixed clamp 9 and the movable clamp 10 have arc-shaped grooves matching the drive spindle on their opposite sides. Two bolt holes are respectively opened at both ends of the fixed clamp 9 and the movable clamp 10. Two bolts 11 pass through the bolt holes at both ends of the fixed clamp 9 and the movable clamp 10 and are locked in place by nuts. The drive spindle is clamped between the fixed clamp 9 and the movable clamp 10 and locked in place on both sides by bolts 11, thus fixing the drive spindle to the spindle rotor 7.

[0021] like Figure 2 As shown, the first spindle clamping device 2 and the second spindle clamping device 3 also include a spindle rotor positioning mechanism. The spindle rotor positioning mechanism includes a spindle positioning plate 12 and a spindle positioning cylinder 13. A vertical slide groove matching the spindle positioning plate 12 is opened in the spindle frame 6, and the lower end of the vertical slide groove penetrates the inner wall of the circular through hole of the spindle frame 6. The spindle positioning plate 12 is slidably disposed in the vertical slide groove. The upper side of the spindle positioning plate 12 is connected to the spindle positioning cylinder 13 and is driven by the spindle positioning cylinder 13 to move up and down in the vertical slide groove in the vertical direction. The spindle positioning cylinder 13 drives the spindle positioning plate 12 to slide down along the vertical slide groove. When the lower side of the spindle positioning plate 12 contacts the spindle rotor, the spindle rotor is locked and positioned.

[0022] like Figure 4As shown, the gear clamping device 4 includes a gear frame 14, a gear rotor 15, and a gear clamp. The lower end of the gear frame 14 is slidably mounted on the upper side of the base 1. The main body of the gear rotor 15 is a disc structure, and the circumferential surface of the gear rotor 15 is a spherical structure. A circular through hole matching the gear rotor 15 is opened in the gear frame 14, and the inner wall of the circular through hole is a concave spherical surface matching the spherical structure of the circumferential surface of the gear rotor 15. The gear rotor 15 is set in the circular through hole of the gear frame 14 and can rotate in any direction within the circular through hole. A shaft hole matching the transmission main shaft is opened in the center of the gear rotor 15, and the gear clamp is set in the shaft hole of the gear rotor 15.

[0023] The gear clamp includes a locking ring 16. The shaft hole of the gear rotor 15 is a multi-stage stepped hole. The inner diameter of one end of the multi-stage stepped hole matches the outer diameter of the transmission main shaft, and the inner diameter of the other end of the multi-stage stepped hole matches the maximum diameter of the gear. The shape of the middle step of the multi-stage stepped hole matches the side step structure of the gear. The inner wall of the other end of the multi-stage stepped hole has an internal thread. The outer side of the locking ring 16 is provided with an external thread that matches the internal thread of the inner wall of the multi-stage stepped hole. When the gear is inserted into the multi-stage stepped hole along the other end of the multi-stage stepped hole, the locking ring 16 gradually rotates into the multi-stage stepped hole through the external thread and the internal thread of the inner wall of the multi-stage stepped hole and locks and fixes the gear.

[0024] Multiple guide rods 17 are provided on the side of the gear rotor 15 facing the second spindle clamping device 3. The guide rods 17 are arranged along the axial direction of the transmission spindle and one end of the guide rod 17 is fixed on the side of the gear rotor 15. The multiple guide rods 17 are evenly distributed along the circumference of the gear rotor 15. The spindle rotor 7 of the second spindle clamping device 3 has multiple guide rod through holes corresponding to the guide rods 17. The other ends of the multiple guide rods 17 are slidably arranged in the multiple guide rod through holes of the spindle rotor 7 of the second spindle clamping device 3.

[0025] The gear clamping device 4 also includes a gear rotor positioning mechanism, which comprises a gear positioning plate 18 and a gear positioning cylinder 19. A vertical groove matching the gear positioning plate 18 is formed inside the gear frame 14, with the lower end of the vertical groove penetrating the inner wall of the circular through hole in the gear frame 14. The gear positioning plate 18 is slidably disposed within the vertical groove. The upper side of the gear positioning plate 18 is connected to the gear positioning cylinder 19, which drives it to move vertically up and down within the vertical groove. The gear positioning cylinder 19 drives the gear positioning plate 18 to slide downwards along the vertical groove. When the lower side of the gear positioning plate 18 contacts the gear rotor, it locks and positions the gear rotor.

[0026] The working principle of the assembly device for a high-speed gear transmission spindle of the present invention is as follows: the spindle is installed in the spindle clamp 8 of the first spindle clamping device 2 and the second spindle clamping device 3, and the gear is installed in the gear clamping device 4. Then, one end of the transmission spindle is connected to an external motor to drive the transmission spindle to rotate at high speed. Since the guide rod 17 connects the rotors of the second spindle clamping device 3 and the gear clamping device 4, the transmission spindle and the gear rotate synchronously at high speed. During the high-speed rotation, since the outer sides of the spindle rotor and the gear rotor are both spherical structures, the axis and axial direction of the spindle and the gear will be automatically adjusted to make them completely aligned. At this time, the positions of the spindle rotor and the gear rotor are fixed by the spindle rotor positioning mechanism and the gear rotor positioning mechanism. Then, the gear is driven to move to the left by the lead screw mechanism to complete the gear installation.

[0027] This invention provides an assembly device for a high-speed gear-driven spindle. The spindle and gear are fixed by a first spindle clamping device, a second spindle clamping device, and a gear clamping device, respectively. Then, the spindle and gear are automatically aligned during high-speed rotation by a spherical rotor structure. Finally, the positions of the spindle and gear are locked, thereby achieving high-precision installation of the high-speed gear-driven spindle.

[0028] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent substitutions, and improvements made to the above embodiments without departing from the scope of the present invention, based on the technical essence of the present invention and within the spirit and principles of the present invention, shall still fall within the protection scope of the present invention.

Claims

1. An assembly device for a high-speed gear transmission spindle, characterized in that: It includes a base and a first spindle clamping device, a second spindle clamping device and a gear clamping device arranged sequentially on the base. The first spindle clamping device and the second spindle clamping device are fixed on the base, and the gear clamping device is slidably arranged on the base and driven by a lead screw mechanism to move along the spindle axis.

2. The assembly device for a high-speed gear transmission spindle according to claim 1, characterized in that: The first spindle clamping device and the second spindle clamping device include a spindle frame, a spindle rotor, and a spindle clamp. The lower end of the spindle frame is fixed to the upper side of the base. The main body of the spindle rotor is a disc structure and the circumferential surface of the spindle rotor is a spherical structure. A circular through hole matching the spindle rotor is opened in the spindle frame, and the inner wall of the circular through hole is a concave spherical surface matching the spherical structure of the circumferential surface of the spindle rotor. The spindle rotor is set in the circular through hole of the spindle frame and can rotate in any direction within the circular through hole. A shaft hole matching the transmission spindle is opened at the center of the spindle rotor, and the spindle clamp is set at one end of the shaft hole of the spindle rotor.

3. The assembly device for a high-speed gear transmission spindle according to claim 2, characterized in that: The spindle clamp includes a fixed clamp, a movable clamp, and bolts. The fixed clamp is fixed to the side of the spindle rotor and located on one side of one end of the shaft hole. The movable clamp is disposed opposite to the fixed clamp on the other side of one end of the shaft hole. The opposite side of the fixed clamp and the movable clamp is provided with an arc-shaped groove that matches the transmission spindle. Each end of the fixed clamp and the movable clamp has a bolt hole that is disposed opposite to each other. Two bolts pass through the bolt holes at both ends of the fixed clamp and the movable clamp and are locked and fixed by nuts.

4. The assembly device for a high-speed gear transmission spindle according to claim 2, characterized in that: The first spindle clamping device and the second spindle clamping device further include a spindle rotor positioning mechanism. The spindle rotor positioning mechanism includes a spindle positioning plate and a spindle positioning cylinder. A vertical slide groove matching the spindle positioning plate is opened in the spindle frame, and the lower end of the vertical slide groove penetrates the inner wall of the circular through hole of the spindle frame. The spindle positioning plate is slidably arranged in the vertical slide groove. The upper side of the spindle positioning plate is connected to the spindle positioning cylinder and is driven by the spindle positioning cylinder to move up and down in the vertical slide groove in the vertical direction.

5. The assembly device for a high-speed gear transmission spindle according to claim 2, characterized in that: The gear clamping device includes a gear frame, a gear rotor, and a gear clamp. The lower end of the gear frame is slidably mounted on the upper side of the base. The gear rotor has a disc structure and its circumferential surface is a spherical structure. A circular through hole matching the gear rotor is opened in the gear frame, and the inner wall of the circular through hole is a concave spherical surface matching the spherical structure of the circumferential surface of the gear rotor. The gear rotor is set in the circular through hole of the gear frame and can rotate in any direction within the circular through hole. A shaft hole matching the transmission main shaft is opened at the center of the gear rotor, and the gear clamp is set in the shaft hole of the gear rotor.

6. The assembly device for a high-speed gear transmission spindle according to claim 5, characterized in that: The gear clamp includes a locking ring. The shaft hole of the gear rotor is a multi-stage stepped hole. The inner diameter of one end of the multi-stage stepped hole matches the outer diameter of the transmission main shaft, and the inner diameter of the other end of the multi-stage stepped hole matches the maximum diameter of the gear. The shape of the middle step of the multi-stage stepped hole matches the side step structure of the gear. The inner wall of the other end of the multi-stage stepped hole has an internal thread. The outer side of the locking ring is provided with an external thread that matches the internal thread of the inner wall of the multi-stage stepped hole. When the gear is inserted into the multi-stage stepped hole along the other end of the multi-stage stepped hole, the locking ring gradually rotates into the multi-stage stepped hole through the external thread and the internal thread of the inner wall of the multi-stage stepped hole, and locks and fixes the gear.

7. The assembly device for a high-speed gear transmission spindle according to claim 5, characterized in that: The gear rotor is provided with multiple guide rods on the side facing the second spindle clamping device. The guide rods are arranged along the axial direction of the transmission spindle and one end of the guide rod is fixed on the side of the gear rotor. The multiple guide rods are evenly distributed along the circumference of the gear rotor. The spindle rotor of the second spindle clamping device has multiple guide rod through holes that correspond one-to-one with the guide rods. The other ends of the multiple guide rods are slidably arranged in the multiple guide rod through holes of the spindle rotor of the second spindle clamping device.

8. The assembly device for a high-speed gear transmission spindle according to claim 5, characterized in that: The gear clamping device also includes a gear rotor positioning mechanism, which includes a gear positioning plate and a gear positioning cylinder. A vertical slide groove matching the gear positioning plate is opened in the gear frame, and the lower end of the vertical slide groove penetrates the inner wall of the circular through hole of the gear frame. The gear positioning plate is slidably set in the vertical slide groove, and the upper side of the gear positioning plate is connected to the gear positioning cylinder and driven by the gear positioning cylinder to move up and down in the vertical slide groove in the vertical direction.

Images