Tooth part and yoke part shrinkage fit press fitting equipment
By designing the red sleeve pressing equipment of the teeth and yoke, the heating assembly is used to thermally expand the inner hole of the yoke and the clamping end of the teeth is used to shrink, which solves the problem of offsetting the assembly position between the teeth and yoke and realizes efficient and automated production.
Patent Information
- Application Number
- CN202422441277.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-09
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-10-09
AI Technical Summary
In the prior art, positional deviations are prone to occur during assembly of the teeth and yokes, resulting in product damage and low production efficiency.
A red-sleeved pressing device for the tooth part and the yoke part is designed, including a loading and unloading assembly, a heating assembly, a clamping assembly and a pressing assembly. The inner hole of the yoke part is thermally expanded by heating the yoke part, and the clamping end of the tooth part is clamped to shrink, realizing automatic pressing assembly.
Improve production efficiency, avoid product damage, and realize automated assembly line production without manual participation throughout the process.
Smart Images
Figure CN223172389U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coil preparation, in particular to a shrink fitting and pressing equipment for a tooth part and a yoke part. Background Art
[0002] Both the tooth part and the yoke part of a permanent magnet synchronous motor are important parts of the stator. The yoke part is a yoke-shaped structure on the stator, mainly playing a role in supporting and fixing the tooth part. At present, in the market, the assembly of the tooth part and the yoke part is all formed by pressing through a press. Generally, workers directly place the stator core at the hot pressing position for hot pressing. In this way, there will be a deviation in the placement position, and the tooth part and the yoke part are not aligned, thus damaging the product. This method requires manual repeated confirmation of the hot pressing position, resulting in low production efficiency. Content of the Utility Model
[0003] In view of this, the utility model provides a shrink fitting and pressing equipment for a tooth part and a yoke part to solve the above problems.
[0004] A shrink fitting and pressing equipment for a tooth part and a yoke part is used to press a tooth part into a yoke part. The shrink fitting and pressing equipment for the tooth part and the yoke part includes a loading and unloading assembly, a heating assembly arranged at one end of the loading and unloading assembly, a clamping assembly arranged on one side of the loading and unloading assembly, and a pressing assembly arranged on one side of the clamping assembly. The loading and unloading assembly includes a servo screw motor, a base arranged at the output end of the servo screw motor, a core fixture base arranged on the base, and a ferrule fixture base arranged on one side of the core fixture base. The heating assembly includes a heating box and a heating coil arranged at the output end of the heating box. The clamping assembly includes a first lifting servo motor, a clamping cylinder arranged at the output end of the lifting servo motor, and two clamping fingers arranged at the output end of the clamping cylinder. The pressing assembly includes a servo press arranged on one side of the clamping assembly, a pressing block arranged at the output end of the servo press, at least two second lifting servo motors respectively arranged on both sides of the loading and unloading assembly, at least two pushing cylinders respectively arranged at the output ends of the two second lifting servo motors, and at least two clamping blocks respectively arranged at the output ends of the two pushing cylinders. The clamping surface of the clamping block is in a semi-circular arc shape, and the side away from the clamping finger has an inward concave avoidance step.
[0005] Further, the tooth part can be placed on the core fixture base, and at least four first positioning blocks are arranged at intervals on the core fixture base.
[0006] Further, the ferrule jig base is capable of placing the yoke portion. A lifting cylinder is provided in the ferrule jig base. A positioning disk is provided at the output end of the lifting cylinder. At least four second positioning blocks are spaced apart at the edge position of the positioning disk.
[0007] Further, the heating assembly further includes a substrate, a driving cylinder disposed on the substrate, a lifting plate disposed at the output end of the driving cylinder, at least four guide posts disposed at the corners of the lifting plate, and a temperature detector disposed on one side of the heating coil.
[0008] Further, the clamping surfaces of the two clamping fingers match the circumferential outer wall of the tooth portion.
[0009] Further, the output direction of the servo press is parallel to the output direction of the first lifting servo motor, and the output direction of the second lifting servo motor is parallel to the output direction of the first lifting servo motor.
[0010] Compared with the prior art, the shrink fitting and press fitting equipment for the tooth portion and the yoke portion provided by the present utility model heats the yoke portion through the heating coil, so that the inner hole of the yoke portion thermally expands to a certain value and is press-fitted onto a tooth portion in a hot state. The two clamping blocks can be clamped at the end of the tooth portion, so that the end of the tooth portion is squeezed and shrunk inward, facilitating the end of the tooth portion to enter the yoke portion and avoiding damage to the product due to improper press-fitting position. The shrink fitting and press fitting equipment for the tooth portion and the yoke portion does not require manual participation throughout the process, has a high degree of automation, greatly improves the production efficiency, and is suitable for production operations on a production line. Description of the Drawings
[0011] Figure 1 It is a schematic structural diagram of the shrink fitting and press fitting equipment for the tooth portion and the yoke portion provided by the present utility model.
[0012] Figure 2 It is a schematic structural diagram of the yoke portion.
[0013] Figure 3 It is a schematic structural diagram of the tooth portion.
[0014] Figure 4 It is for Figure 1 the schematic structural diagram of the loading and unloading assembly of the shrink fitting and press fitting equipment for the tooth portion and the yoke portion.
[0015] Figure 5 It is for Figure 1 the disassembled schematic diagram of the ferrule jig base of the shrink fitting and press fitting equipment for the tooth portion and the yoke portion.
[0016] Figure 6 It is for Figure 1Structural schematic diagram of the heating component of the shrink fitting equipment for the tooth part and the yoke part
[0017] Figure 7 For Figure 1 Structural schematic diagram of the clamping component and the press-fitting component of the shrink fitting equipment for the tooth part and the yoke part
[0018] Figure 8 For Figure 1 Structural schematic diagram of the clamping block of the shrink fitting equipment for the tooth part and the yoke part Specific embodiments
[0019] The following further details the specific embodiments of the present invention. It should be understood that the description of the embodiments of the present invention herein is not intended to limit the protection scope of the present invention.
[0020] As Figure 1 shown, it is a structural schematic diagram of the shrink fitting equipment for the tooth part and the yoke part provided by the present invention. The shrink fitting equipment for the tooth part and the yoke part includes a loading and unloading component 10, a heating component 20 arranged at one end of the loading and unloading component 10, a clamping component 30 arranged on one side of the loading and unloading component 10, and a press-fitting component 40 arranged on one side of the clamping component 30. It can be imagined that the shrink fitting equipment for the tooth part and the yoke part also includes some other functional modules, such as a power supply module, a screw module, etc., which are well-known technologies to those skilled in the art and will not be elaborated one by one here.
[0021] Please refer to Figure 2 And Figure 3 , it should be noted that the shrink fitting equipment for the tooth part and the yoke part is used to heat a yoke 50 so that its inner hole thermally expands to a certain value, press-fit it onto a tooth part 60 in a hot state, and cool it to room temperature, so that the inner hole of the yoke 50 cools and shrinks, thereby enabling the yoke 50 and the tooth part 60 to be interference-fitted. A plurality of ridges 51 are spaced apart on the circumferential inner side wall of the yoke 50, and a plurality of grooves 61 are spaced apart on the circumferential outer side wall of the tooth part 60. The number of the ridges 51 is equal to that of the grooves 61 and they correspond to each other, that is, one ridge 51 can be clamped into one groove 61 to complete the assembly.
[0022] Please refer to together Figures 4 to 8 , the loading and unloading component 10 includes a servo screw motor 11, a base 12 arranged at the output end of the servo screw motor 11, an iron core jig seat 13 arranged on the base 12, and a ferrule jig seat 14 arranged on one side of the iron core jig seat 13.
[0023] The servo lead screw motor 11 itself is a prior art, and it can drive the base 12 to perform reciprocating motion, thereby driving the core jig base 13 and the ferrule jig base 14 to move, so as to complete the loading and unloading of the yoke portion 50 and the tooth portion 60.
[0024] The tooth portion 60 can be placed on the core jig base 13, and at least four first positioning blocks 15 matching the grooves 61 are arranged at intervals on the core jig base 13. When the tooth portion 60 is placed on the core jig base 13, the four first positioning blocks 15 can position the tooth portion 60, so that the tooth portion 60 can be rotated to a specific angle, so that the grooves 61 on the tooth portion 60 can cooperate with the ridges 51 on the yoke portion 50.
[0025] The yoke portion 50 can be placed on the ferrule jig base 14. A lifting cylinder 16 is arranged in the ferrule jig base 14, and a positioning disk 17 is arranged at the output end of the lifting cylinder 16. The lifting cylinder 16 can drive the positioning disk 17 to perform reciprocating motion along the axial direction of the ferrule jig base 14. Thus, when the tooth portion 60 is press-fitted into the yoke portion 50, the lifting cylinder 16 drives the positioning disk 17 away from the yoke portion 50, so as to avoid interference between the tooth portion 60 and the positioning disk 17 during the press-fitting process.
[0026] At least four second positioning blocks 18 are arranged at intervals at the edge position of the positioning disk 17. The second positioning blocks 18 can be clamped between two adjacent ridges 51 on the yoke portion 50, so that the yoke portion 50 can be rotated to a specific angle, so that the ridges 51 on the yoke portion 50 can cooperate with the grooves 61 on the tooth portion 60.
[0027] The heating assembly 20 includes a substrate 21, a driving cylinder 22 arranged on the substrate 21, a lifting plate 23 arranged at the output end of the driving cylinder 22, at least four guide posts 24 arranged at the corners of the lifting plate 23, a heating box 25 arranged at the end of the guide posts 24, and a heating coil 26 arranged at the output end of the heating box 25.
[0028] The four guide posts 24 are respectively movably inserted through the substrate 21. The driving cylinder 22 can drive the lifting plate 23 to perform reciprocating motion along the length direction of the guide posts 24, so as to drive the guide posts 24 to move and drive the heating box 25 to move, so that the heating coil 26 located at the output end of the heating box 25 moves up and down to perform the avoidance operation for the yoke portion 50. The working principle of the heating box 25 itself is a prior art and will not be described in detail here.
[0029] The heating component 20 further includes a temperature detector 27 disposed on one side of the heating coil 26. The temperature detector 27 can detect the temperature in the heating coil 26 in real time, so as to monitor the temperature change of the yoke 50.
[0030] The clamping component 30 includes a first lifting servo motor 31, a clamping cylinder 32 disposed at the output end of the lifting servo motor 31, and two clamping fingers 33 disposed at the output end of the clamping cylinder 32.
[0031] The first lifting servo motor 31 is disposed on one side of the pressing position. It can drive the clamping cylinder 32 to perform lifting operations, so as to cooperate with the pressing component 40 to complete the descending action of the tooth part 60 and complete the pressing operation.
[0032] The clamping surfaces of the two clamping fingers 33 match the circumferential outer side wall of the tooth part 60. The clamping cylinder 32 can drive the two clamping fingers 33 to complete the picking and placing operations of the tooth part 60.
[0033] The pressing component 40 includes a servo press 41 disposed on one side of the clamping component 30, a pressing block 42 disposed at the output end of the servo press 41, at least two second lifting servo motors 43 respectively disposed on both sides of the loading and unloading component 10, at least two pushing cylinders 44 respectively disposed at the output ends of the two second lifting servo motors 43, and at least two clamping blocks 45 respectively disposed at the output ends of the two pushing cylinders 44.
[0034] The output direction of the servo press 41 is parallel to the output direction of the first lifting servo motor 31. It can drive the pressing block 42 to perform reciprocating motion towards the pressing position, so as to perform the pressing operation on the yoke 50 and the tooth part 60. The output direction of the second lifting servo motor 43 is parallel to the output direction of the first lifting servo motor 31. It can drive the pushing cylinder 44 to perform lifting operations, so that the two clamping blocks 45 can move synchronously with the clamping fingers 33. The output directions of the two pushing cylinders 44 are arranged towards each other. The two pushing cylinders 44 can respectively drive the two clamping blocks 45 to approach or move away from each other, so as to complete the extrusion operation on the end part of the tooth part 60. The clamping surface of the clamping block 45 is semi-circular arc-shaped, and the side away from the clamping finger 33 has an inward concave avoidance step 46. Thus, during the pressing operation, the two pushing cylinders 44 drive the two clamping blocks 45 to approach each other and clamp them at the end position of the end of the tooth part 60 away from the servo press 41, so that the end part of the tooth part 60 is squeezed and shrunk, so as to facilitate the end part of the tooth part 60 to enter the yoke 50. The avoidance step 46 can avoid interference between the clamping block 45 and the yoke 50 and other situations.
[0035] The following will describe in detail how the shrink fitting and press-fitting equipment for the tooth part and the yoke part completes the press-fitting operation.
[0036] First, the yoke part 50 and the tooth part 60 are respectively placed on the ferrule jig base 14 and the iron core jig base 13 by means of a robotic arm, and the servo lead screw motor 11 moves them to the designated positions. The first lifting servo motor 31 drives the clamping cylinder 32 to descend, and the clamping cylinder 32 drives the two clamping fingers 33 to clamp the tooth part 60 and lift it under the drive of the first servo motor 31. The drive cylinder 22 drives the substrate 21 to descend and drives the heating box 25 to move, so that the heating coil 26 encompasses the yoke part 50, and the heating box 25 starts to work to heat the yoke part 50. When the temperature detector 27 detects that the temperature of the yoke part 50 changes to the designated temperature, the drive cylinder 22 drives the substrate 21 to ascend and drives the heating box 25 to move, so that the heating coil 26 moves away from the yoke part 50. The servo lead screw motor 11 drives the base 12 to move, so that the yoke part 50 moves to the press-fitting position, that is, the yoke part 50 is located below the tooth part 60. The two second lifting servo motors 43 respectively drive the two pushing cylinders 44 to lift to the designated positions, that is, the two clamping blocks 45 correspond to the ends of the tooth part 60. The two pushing cylinders 44 drive the two clamping blocks 45 to approach each other and clamp them at the ends of the tooth part 60, so that the ends of the tooth part 60 are squeezed and retracted. The first and second lifting servo motors 31 and 43 move synchronously, so that the tooth part 60 and the yoke part 50 approach and abut against each other. The servo press 41 drives the pressing block 42 to move, and presses the tooth part 60 into the yoke part 50. At the same time, the lifting cylinder 16 drives the positioning disk 17 away from the yoke part 50 to avoid interference between the tooth part 60 and the positioning disk 17. In this way, the press-fitting operation of the yoke part 50 and the tooth part 60 is completed. Each component starts to reset, the base 12 returns to the initial position, the robotic arm performs the blanking operation, and the product is cooled. This process is repeated to complete the press-fitting assembly line operation.
[0037] Compared with the prior art, the shrink fitting and press-fitting equipment for the tooth part and the yoke part provided by the present utility model heats the yoke part 50 through the heating coil 26, so that the inner hole of the yoke part 50 thermally expands to a certain value and is press-fitted onto a tooth part 60 in a hot state. The two clamping blocks 45 can clamp the ends of the tooth part 60, so that the ends of the tooth part 60 are squeezed and retracted, which facilitates the ends of the tooth part 60 to enter the yoke part 50 and avoids damaging the product due to improper press-fitting position. The shrink fitting and press-fitting equipment for the tooth part and the yoke part does not require manual participation throughout the process, has a high degree of automation, greatly improves the production efficiency, and is suitable for assembly line production operations.
[0038] The above are only the preferred embodiments of the present utility model and are not intended to limit the protection scope of the present utility model. Any modifications, equivalent substitutions or improvements within the spirit of the present utility model are all covered by the claims of the present utility model.
Claims
1. A shrink-fit pressing device for a tooth part and a yoke part, which is used to press a tooth part into a yoke part, and is characterized in that: The shrink-fitting and press-fitting equipment for the tooth part and the yoke part includes a loading and unloading assembly, a heating assembly arranged at one end of the loading and unloading assembly, a clamping assembly arranged on one side of the loading and unloading assembly, and a press-fitting assembly arranged on one side of the clamping assembly. The loading and unloading assembly includes a servo screw motor, a base arranged at the output end of the servo screw motor, a core jig base arranged on the base, and a ferrule jig base arranged on one side of the core jig base. The heating assembly includes a heating box and a heating coil arranged at the output end of the heating box. The clamping assembly includes a first lifting servo motor, a clamping cylinder arranged at the output end of the lifting servo motor, and two clamping fingers arranged at the output end of the clamping cylinder. The press-fitting assembly includes a servo press arranged on one side of the clamping assembly, a pressing block arranged at the output end of the servo press, at least two second lifting servo motors respectively arranged on both sides of the loading and unloading assembly, at least two pushing cylinders respectively arranged at the output ends of the two second lifting servo motors, and at least two clamping blocks respectively arranged at the output ends of the two pushing cylinders. The clamping surface of the clamping block is semi-circular arc-shaped, and the side away from the clamping finger has an inward concave avoidance step.
2. The shrink fitting and press fitting equipment for the tooth part and the yoke part according to claim 1, characterized in that: The tooth part can be placed on the core jig base, and at least four first positioning blocks are arranged at intervals on the core jig base.
3. The shrink-fitting and press-fitting device for the tooth part and the yoke part according to claim 1, characterized in that: The ferrule part can be placed on the ferrule jig base. A lifting cylinder is arranged in the ferrule jig base, and a positioning disk is arranged at the output end of the lifting cylinder. At least four second positioning blocks are arranged at intervals at the edge position of the positioning disk.
4. The shrink-fit pressing equipment for the tooth part and the yoke part according to claim 1, characterized in that: The heating assembly further includes a substrate, a driving cylinder arranged on the substrate, a lifting plate arranged at the output end of the driving cylinder, at least four guide posts arranged at the corners of the lifting plate, and a temperature detector arranged on one side of the heating coil.
5. The shrink-fitting and press-fitting device for the tooth part and the yoke part according to claim 1, characterized in that: The clamping surfaces of the two clamping fingers match the circumferential outer side wall of the tooth part.
6. The shrink-fit pressing equipment for the tooth part and the yoke part according to claim 1, characterized in that: The output direction of the servo press is parallel to the output direction of the first lifting servo motor, and the output direction of the second lifting servo motor is parallel to the output direction of the first lifting servo motor.