Production clamp for bearing chamber of stator vehicle with base
By designing a production fixture with CNC chuck, arc clamp hand and buffer hole, the problem of difficult to ensure the deformation and concentricity of the stator core when processing the belt frame stator bearing chamber, achieving higher machining accuracy and stability.
Patent Information
- Application Number
- CN202420563472.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-22
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-03-22
AI Technical Summary
When processing the bearing chamber with the standstile stator, the three-claw chuck is used to clamp the outer circle of the stator core for positioning, resulting in deformation of the iron core and affecting use. It also requires removal of the workpiece rotation direction and re-climbing, making it difficult to ensure the concentricity of the bearing chambers at both ends.
A production fixture with a stator bearing chamber with a machine stand is designed, which adopts a combination of CNC chuck, arc clamping hand, buffer hole, telescopic groove, first jacket and second jacket. Through the integrated connection of CNC chuck and the design of the tightening parts, the fixture is ensured to be stable and not loose during the processing process.
Through the uniform pressure distribution of the arc-shaped clamping hand and the vibration absorption of the buffer hole, the deformation and damage of the workpiece are reduced, the stability and accuracy of clamping are improved, the concentricity of the bearing chambers at both ends is ensured, and the processing efficiency and quality are improved.
Smart Images
Figure CN222588928U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field related to motor manufacturing, and in particular relates to a production fixture with a stator bearing chamber of a machine base. Background Art
[0002] In the motor manufacturing industry, the stator is a core component of a motor, so the processing requirements for the stator need to be more precise. Many products have a base stator, and this type of stator needs to be processed with a high-precision bearing chamber at both ends during production, and there are also concentricity requirements between the bearing chambers at both ends. After completing the processing of the chamber at one end, the workpiece needs to be turned around and re-clamped for processing.
[0003] However, existing lathe processing has limitations. When processing the bearing chambers at both ends, the stator core is positioned only by clamping the outer circle of the stator core with a three-jaw chuck on the lathe. The core will be deformed, affecting its use. At the same time, the workpiece needs to be removed during processing, and the direction of the workpiece needs to be reversed and re-clamped. In this way, the concentricity of the bearing chambers at both ends is difficult to ensure. Utility Model Content
[0004] The purpose of the utility model is to provide a production fixture for turning the bearing chamber of a stator with a machine base, so as to solve the limitation of the existing lathe processing mentioned in the above background technology. When processing the bearing chambers at both ends, only the three-jaw chuck on the lathe is used to clamp the outer circle of the stator core for positioning, and the core will be deformed, affecting the use. At the same time, the workpiece needs to be removed during processing, and the direction of the workpiece needs to be turned and then re-clamped, so the concentricity of the bearing chambers at both ends is difficult to ensure.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a production fixture with a machine base stator lathe bearing chamber, comprising a main shaft tie rod;
[0006] A spindle flange is arranged at the outer side of the spindle pull rod, a spring chuck adapter is arranged at the right side of the spindle flange, a connecting rod is arranged at the middle inside of the spring chuck adapter, and the spring chuck adapter is fixedly connected to the spindle flange via a positioning piece;
[0007] A numerical control chuck is arranged at the right side of the connecting rod, a first jacket or a second jacket is arranged inside the numerical control chuck, a stator is arranged inside the first jacket, and a base is arranged at the bottom of the stator.
[0008] Preferably, the internal annular array of the CNC chuck is provided with grippers, the grippers are provided with buffer holes at their connecting positions, telescopic slots are provided at the middle positions of adjacent grippers, and the grippers are of arc-shaped structure.
[0009] Preferably, a bottom cavity is provided at the middle position inside the CNC chuck, and the bottom of the gripper is integrally connected to the connecting rod.
[0010] Preferably, the first jacket and the second jacket are provided with buffer holes and telescopic grooves in an array inside, a gasket is provided at the top of the first jacket, and the first jacket and the second jacket are made of artificial rubber material.
[0011] Preferably, a clamping piece is arranged at an outer position of the numerical control chuck, an outer ring is arranged at an outer position of the clamping piece, and a thread is provided on the outer side of the clamping piece array.
[0012] Preferably, a clamping groove is provided at a middle position on the outer side of the numerical control chuck, and a nesting piece is provided at a middle position inside the clamping piece, and the nesting piece corresponds to the clamping groove.
[0013] Preferably, the outer wall diameters of the first and second jackets correspond to the inner wall diameters of the CNC chuck, and the CNC chuck and the clamping member are made of steel.
[0014] Compared with the prior art, the utility model provides a production fixture with a stator bearing chamber of a machine base, which has the following beneficial effects:
[0015] Through the arrangement of the CNC chuck, the gripper, the buffer hole, the expansion slot, the first sleeve, the second sleeve and the gasket, the arc-shaped gripper can distribute the pressure of clamping the workpiece more evenly. Compared with the right-angle gripper, the arc-shaped structure can reduce the possibility of deformation or damage of the workpiece caused by uneven clamping force when clamping the workpiece. The design of the arc-shaped gripper can provide better clamping stability, and its curved shape can better fit the surface of the workpiece, increasing the contact area of the clamping, thereby improving the stability and reliability of the clamping. The integrated connection can ensure that the fixture will not loosen or deform during the processing, thereby ensuring the processing accuracy and workpiece quality, and improving the stability and rigidity of the fixture. The setting of the buffer hole can effectively absorb and reduce the vibration and impact generated by the fixture during the working process, which helps to protect the workpiece and the fixture itself and reduce damage or deformation caused by vibration and impact. The setting of the expansion slot can make the gripper have a certain degree of elasticity when subjected to external force, which enables the fixture to better adapt to the size and shape changes of the workpiece, improving its applicability and flexibility.
[0016] By setting the clamping piece, outer ring, clamping groove and nesting piece, the clamping piece is inserted into the outside of the CNC chuck, so that the internal nesting piece is clamped into the clamping groove. This design simplifies the installation process of the fixture and makes the operation more convenient and quick. Only the clamping piece needs to be inserted into the outside of the chuck, and the internal nesting piece can be automatically clamped into the clamping groove, eliminating the complicated adjustment steps. The rotation of the outer ring of the chuck can make the clamping piece squeeze inward, thereby increasing the clamping force on the internal nesting piece. This design can ensure that the clamping force reaches a higher level and improves the stability of the clamping. A more stable clamping can reduce the processing error caused by the vibration of the workpiece. Vibration will affect the stability and cutting quality of the machining tool. By providing a more stable clamping, the influence of vibration on the machining process can be reduced, and the machining efficiency and quality can be improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a structural schematic diagram of the utility model.
[0018] Figure 2 It is a schematic diagram of the structure of the first clamping of the stator in the utility model.
[0019] Figure 3 It is a schematic diagram of the structure of the second clamping of the stator in the utility model.
[0020] Figure 4 It is a structural schematic diagram of the CNC chuck in the utility model.
[0021] Figure 5 It is a schematic diagram of the bottom cavity structure of the CNC chuck in the utility model.
[0022] Figure 6 It is a structural schematic diagram of the clamping member in the utility model.
[0023] Figure 7 It is a schematic structural diagram of the first jacket in the utility model.
[0024] Figure 8 It is a structural schematic diagram of the second jacket in the utility model.
[0025] Fig. 9 It is a structural schematic diagram of the stator in the utility model.
[0026] In the figure: 1. spindle pull rod; 2. spindle flange; 3. spring chuck adapter; 4. positioning piece; 5. connecting rod; 6. CNC chuck; 7. first sleeve; 8. second sleeve; 9. clamping piece; 10. outer ring; 11. snap-fit groove; 12. nesting piece; 13. stator; 14. base; 15. clamping hand; 16. buffer hole; 17. telescopic groove; 18. gasket; 19. bottom cavity. DETAILED DESCRIPTION
[0027] 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.
[0028] The utility model provides Figure 1-9 The production fixture with a machine base stator bearing chamber shown includes a main shaft tie rod 1;
[0029] A spindle flange 2 is arranged at the outer side of the spindle tie rod 1, a spring chuck adapter 3 is arranged at the right side of the spindle flange 2, a connecting rod 5 is arranged at the middle position inside the spring chuck adapter 3, and the spring chuck adapter 3 is fixedly connected to the spindle flange 2 through a positioning member 4;
[0030] A numerical control chuck 6 is arranged at the right side of the connecting rod 5 , a first jacket 7 or a second jacket 8 is arranged inside the numerical control chuck 6 , a stator 13 is arranged inside the first jacket 7 , and a base 14 is arranged at the bottom of the stator 13 .
[0031] The internal annular array of grippers 15 is provided in the numerical control chuck 6. The connection positions of the grippers 15 are provided with buffer holes 16. The middle positions of adjacent grippers 15 are provided with telescopic slots 17. The grippers 15 are of arc-shaped structure.
[0032] A bottom cavity 19 is provided at the middle position inside the numerical control chuck 6 , and the bottom of the gripper 15 is integrally connected with the connecting rod 5 .
[0033] The first jacket 7 and the second jacket 8 are provided with buffer holes 16 and telescopic grooves 17 in an array inside, a gasket 18 is provided at the top of the first jacket 7, and the first jacket 7 and the second jacket 8 are made of artificial rubber material.
[0034] A clamping piece 9 is arranged at the outer side of the numerical control chuck 6, an outer ring 10 is arranged at the outer side of the clamping piece 9, and threads are provided on the outer side of the clamping piece 9.
[0035] A clamping groove 11 is provided at the middle position of the outer side of the numerical control chuck 6 , and a nesting piece 12 is provided at the middle position inside the clamping piece 9 , and the nesting piece 12 corresponds to the clamping groove 11 .
[0036] The outer wall diameters of the first jacket 7 and the second jacket 8 correspond to the inner wall diameter of the CNC chuck 6 , and the CNC chuck 6 and the clamping member 9 are made of steel.
[0037] In this embodiment, the specific implementation steps of a production fixture for turning the bearing chamber of a stator with a machine base are as follows: first, the connecting rod 5 of the CNC chuck 6 is screwed onto the spindle pull rod 1 of the rear-pull collet of the machine tool, the first sleeve 7 is put on the stator 13 with the machine base, and then inserted into the CNC chuck so that the gasket 18 of the first sleeve 7 is attached to the chuck, and after clamping the stator 13, the bearing chamber is turned. After turning the bearing chamber at one end, the stator 13 is taken out, the first sleeve 7 is removed, the second sleeve 8 is put on, and the sleeve is inserted into the CNC chuck 6 so that the bottom of the stator 13 is against the inner wall of the CNC chuck 6, and the clamp is re-clamped to turn the bearing chamber at the other end. After completing the workpiece processing, the device is removed, and the device is cleaned and maintained for the next processing.
[0038] like Figure 1-5 and Figure 7-8 As shown, the CNC chuck 6 is provided with grippers 15 in an annular array inside, buffer holes 16 are provided at the connection positions of the grippers 15, and telescopic grooves 17 are provided at the middle positions of adjacent grippers 15. The grippers 15 are of an arc-shaped structure, and a bottom cavity 19 is provided at the middle position inside the CNC chuck 6. The bottom of the grippers 15 is integrally connected with the connecting rod 5. The first jacket 7 and the second jacket 8 are provided with buffer holes 16 and telescopic grooves 17 in an array inside, and a gasket 18 is provided at the top position of the first jacket 7. The first jacket 7 and the second jacket 8 are made of artificial rubber material.
[0039] Preferably, the first jacket 7 is put on the stator 13 with the machine base, and then inserted into the CNC chuck, so that the gasket 18 of the first jacket 7 is attached to the chuck, and after clamping the stator 13, the bearing chamber is machined. After the bearing chamber at one end is machined, the stator 13 is taken out, the first jacket 7 is taken off, the second jacket 8 is put on, and inserted into the CNC chuck 6 so that the bottom of the stator 13 is against the inner wall of the CNC chuck 6, and re-clamped to machine the bearing chamber at the other end. This tooling is still positioned with the outer circle of the stator 13 core, but the force deformation of the tooling is uniform, and the stator is firmly fixed, so that the deformation of the stator core is small and the precision is high, so as to ensure the concentricity requirements of the bearing chambers at both ends.
[0040] like Figure 2-3 and Figure 6 As shown, a clamping piece 9 is provided at the outer position of the CNC chuck 6, an outer ring 10 is provided at the outer position of the clamping piece 9, a thread is provided on the outer side of the clamping piece 9 array, a clamping groove 11 is provided at the middle position of the outer side of the CNC chuck 6, and a nesting piece 12 is provided at the middle position inside the clamping piece 9, and the nesting piece 12 corresponds to the clamping groove 11.
[0041] Preferably, the first sleeve 7 is put on the stator 13 with the machine base, and then inserted into the CNC chuck, so that the gasket 18 of the first sleeve 7 is attached to the chuck, and after clamping the stator 13, the clamping piece 9 is put on the outside of the CNC chuck 6, so that the internal nested piece 12 is snapped into the snap-in groove 11, and then the outer outer ring 10 is rotated to make the clamping of the CNC chuck 6 and the internal stator 13 more stable, preventing the workpiece from being dislocated during lathe processing.
[0042] like Figure 1-7 As shown, the outer wall diameters of the first jacket 7 and the second jacket 8 correspond to the inner wall diameter of the CNC chuck 6, and the CNC chuck 6 and the clamping member 9 are made of steel.
[0043] Optionally, the outer wall diameter matches the inner wall diameter, so the fit between the sleeve and the CNC chuck 6 will be tighter, thereby providing a more stable clamping and ensuring that the workpiece will not move or deviate during processing. Size matching can ensure that the workpiece is clamped in the correct position and angle, which is crucial for workpieces that require high-precision processing. High-precision clamping can ensure consistency and accuracy during the processing. In high-pressure and high-load environments such as CNC processing, the CNC chuck 6 and the clamp 9 need to be able to withstand continuous force and vibration. The steel material can provide sufficient strength and durability to ensure long-term stable operation of the equipment.
[0044] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A production fixture with a machine base stator bearing chamber, comprising a spindle tie rod (1); A spindle flange (2) is arranged at an outer position of the spindle pull rod (1), a spring chuck adapter (3) is arranged at a right position of the spindle flange (2), a connecting rod (5) is arranged at an inner middle position of the spring chuck adapter (3), and the spring chuck adapter (3) is fixedly connected to the spindle flange (2) via a positioning member (4); Features: A numerical control chuck (6) is arranged at the right side of the connecting rod (5), a first chuck (7) or a second chuck (8) is arranged at an inner position of the numerical control chuck (6), a stator (13) is arranged at an inner position of the first chuck (7), and a base (14) is arranged at a bottom position of the stator (13).
2. A production fixture for a stator bearing chamber with a machine base according to claim 1, characterized in that: The numerical control chuck (6) is provided with grippers (15) in an annular array inside, the grippers (15) are provided with buffer holes (16) at the connection positions, and telescopic slots (17) are provided at the middle positions of adjacent grippers (15), and the grippers (15) are of arc-shaped structure.
3. A production fixture for a stator bearing chamber with a machine base according to claim 2, characterized in that: A bottom cavity (19) is provided at a middle position inside the numerical control chuck (6), and the bottom of the chuck (15) is integrally connected to the connecting rod (5).
4. The production fixture for the bearing chamber of a stator car with a machine base according to claim 3 is characterized in that: The first jacket (7) and the second jacket (8) are provided with buffer holes (16) and telescopic grooves (17) in an array inside, a gasket (18) is provided at the top of the first jacket (7), and the first jacket (7) and the second jacket (8) are made of artificial rubber material.
5. The production fixture for the bearing chamber of a stator car with a machine base according to claim 1, characterized in that: A clamping piece (9) is arranged at an outer position of the numerical control chuck (6), an outer ring (10) is arranged at an outer position of the clamping piece (9), and a thread is provided on the outer side of the clamping piece (9) array.
6. A production fixture for a stator bearing chamber with a machine base according to claim 5, characterized in that: A clamping groove (11) is provided at a middle position on the outside of the numerical control chuck (6), and a nesting piece (12) is provided at a middle position inside the clamping piece (9), and the nesting piece (12) corresponds to the clamping groove (11).
7. The production fixture for the bearing chamber of a stator with a machine base according to claim 1, characterized in that: The outer wall diameters of the first clamping sleeve (7) and the second clamping sleeve (8) correspond to the inner wall diameter of the CNC clamping head (6); the CNC clamping head (6) and the clamping member (9) are made of steel.