A device based on processing spline curve workpieces

Abstract

This invention relates to the field of workpiece processing, specifically to a device for processing spline curve workpieces. It includes a grinding wheel processing structure and an eccentric adjustment structure, with the grinding wheel processing structure positioned above the eccentric adjustment structure. The grinding wheel processing structure includes a grinding wheel and a grinding wheel processing motor for driving the grinding wheel. The eccentric adjustment structure includes a mounting frame, adjustment seats located on both sides of the mounting frame, and an eccentric adjustment device for adjusting the adjustment seats. The adjustment seats include a first adjustment seat and a second adjustment seat, with the first adjustment seat located on one side of the mounting frame and the second adjustment seat located on the other side. This device can be used for processing irregular curved surfaces such as eccentric or coaxial workpieces. It can accurately determine the eccentricity, thereby establishing the initial processing positioning reference. Even during subsequent processing, the positioning reference remains accurate, facilitating the processing of eccentric or coaxial workpieces with CNC machine tools.

Description

Technical Field

[0001] This invention relates to the field of workpiece processing, and more specifically to a device for processing spline curve workpieces. Background Technology

[0002] With the continuous advancement of technology, CNC machine tools, as the "mother machines" of the manufacturing industry, have been widely used and rapidly developed and popularized due to their advantages such as high rigidity, high automation, high precision, and high efficiency. The machining accuracy and efficiency of machine tools signify a country's productivity level and are related to its overall strength. Many factors affect the machining accuracy of machine tools, including thermal errors, motion errors, and workpiece clamping errors. Among these, workpiece clamping accuracy is a crucial prerequisite for ensuring machining accuracy, especially when machining irregular curved surfaces such as Mecanum hubs or complex components, or workpieces with inherent eccentricity. These workpieces have complex shapes and extremely high requirements for geometrical and positional accuracy and surface quality. If the positioning datum cannot be properly determined, the roundness and coaxiality of the machined workpiece will be severely affected. Therefore, to ensure machining accuracy, the workpiece clamping and positioning accuracy is paramount.

[0003] How to solve the problem of irregular curved surfaces of workpieces is one of the problems that urgently needs to be solved by those skilled in the art. In view of this, the present invention provides a device for processing spline curve workpieces. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a device for processing spline curve workpieces.

[0005] To solve the above technical problems, the following technical solution is adopted: A device for processing spline curve workpieces includes a grinding wheel processing structure and an eccentric adjustment structure, wherein the grinding wheel processing structure is disposed above the eccentric adjustment structure. The grinding wheel processing structure includes a grinding wheel and a grinding wheel processing motor for driving the grinding wheel to work; The eccentric adjustment structure includes a mounting frame, adjustment seats located on both sides of the mounting frame, and an eccentric adjustment device that drives the adjustment seats to perform eccentric adjustment. The adjustment seat includes a first adjustment seat and a second adjustment seat, wherein the first adjustment seat is located on one side of the mounting frame and the second adjustment seat is located on the other side of the mounting frame; The eccentric adjustment device includes a positioning center wheel, an eccentric adjustment bracket, and an adjustment component. The positioning center wheel is fixedly disposed in the middle of the mounting frame. The adjustment component includes a first adjustment component and a second adjustment component. One end of the first adjustment component is connected to the first adjustment seat, and the other end of the first adjustment component is connected to the eccentric adjustment bracket through the positioning center wheel. One end of the second adjustment component is connected to the second adjustment seat, and the other end of the second adjustment component is connected to the eccentric adjustment bracket through the positioning center wheel. The first adjusting seat is provided with a first clamping member for clamping the workpiece, and the second adjusting seat is provided with a second clamping member for clamping the workpiece, and the workpiece is disposed between the first clamping member and the second clamping member.

[0006] Furthermore, it also includes a vertical attitude adjustment device, which comprises a vertical attitude adjustment motor, a vertical attitude adjustment screw, a vertical attitude adjustment nut, a vertical attitude adjustment bracket, a vertical attitude adjustment slide rail, and a vertical attitude adjustment slider. The vertical attitude adjustment slide rail includes a first vertical attitude adjustment slide rail and a second vertical attitude adjustment slide rail. The vertical attitude adjustment slider includes a first vertical attitude adjustment slider and a second vertical attitude adjustment slider. The vertical attitude adjustment motor is connected to the vertical attitude adjustment screw. The vertical attitude adjustment nut is provided on the vertical attitude adjustment screw. The lower part of the vertical attitude adjustment nut is connected to the vertical attitude adjustment bracket. One side of the vertical attitude adjustment bracket is connected to the first vertical attitude adjustment slider. The first vertical attitude adjustment slider is connected to the first vertical attitude adjustment slide rail. The first vertical attitude adjustment slide rail is installed on one side of the frame. The other side of the vertical attitude adjustment bracket is connected to the second vertical attitude adjustment slider. The second vertical attitude adjustment slider is connected to the second vertical attitude adjustment slide rail. The second vertical attitude adjustment slide rail is installed on the other side of the frame.

[0007] Furthermore, the vertical attitude adjustment slider is connected to a rotary attitude adjustment device 5. The attitude adjustment device includes a rotary attitude adjustment motor, a first rotary attitude adjustment seat, a second rotary attitude adjustment seat, a first rotary attitude adjustment shaft, a second rotary attitude adjustment shaft, a first rotary attitude adjustment bracket, and a second rotary attitude adjustment bracket. The first rotary attitude adjustment seat is located on one side of the frame, and the second rotary attitude adjustment seat is located on the other side of the frame. Both the first and second rotary attitude adjustment seats are mounted on the frame. The first rotary attitude adjustment seat is provided with the first rotary attitude adjustment shaft, which is connected to the first rotary attitude adjustment bracket. The first rotary attitude adjustment bracket is connected to the first vertical attitude adjustment slider. The second rotary attitude adjustment seat is provided with the second rotary attitude adjustment shaft, which is connected to the second rotary attitude adjustment bracket. The second rotary attitude adjustment bracket is connected to the second vertical attitude adjustment slider 48. The rotary attitude adjustment motor is connected to either the first or the second rotary attitude adjustment shaft.

[0008] Furthermore, the adjusting component is an adjusting chain, adjusting wire rope, adjusting belt, or adjusting timing belt.

[0009] Furthermore, the eccentric adjustment structure also includes an eccentric adjustment component that drives the adjustment member to adjust its movement. The eccentric adjustment component is disposed on the side near the adjustment seat or on the side near the eccentric adjustment bracket.

[0010] Furthermore, the eccentric adjustment assembly includes an adjustment screw disposed on the first adjustment seat and / or the second adjustment seat, one end of the adjustment screw being connected to the adjustment hole of the adjustment member, the other end of the adjustment screw being connected to the first adjustment seat and / or the second adjustment seat, the adjustment screw being connected to an adjustment screw motor, and the adjustment screw motor being disposed within the eccentric adjustment bracket; Alternatively, the eccentric adjustment assembly may include an adjustment screw disposed on the eccentric adjustment bracket, one end of the adjustment screw being connected to the adjustment hole of the adjustment member, the other end of the adjustment screw being connected to the eccentric adjustment bracket, and the adjustment screw being connected to an adjustment screw motor disposed within the eccentric adjustment bracket.

[0011] Furthermore, the mounting bracket is provided with a reset device on each side that matches the adjustment seat. The reset device includes a reset connecting seat, a reset spring, and a reset guide rod. The reset connecting seat, reset spring, and reset guide rod are all disposed in the mounting groove of the mounting bracket. The reset connecting seat is fixedly connected to the adjustment seat. The reset guide rod is disposed on the inner side of the reset connecting seat. The reset spring is sleeved on the reset guide rod. The outer side of the reset spring abuts against the reset connecting seat, and the inner end of the reset spring abuts against the mounting bracket.

[0012] Furthermore, the positioning center wheel includes a first positioning center wheel and a second positioning center wheel, which are coaxially arranged. The first positioning center wheel is used to drive the first adjusting member to move, and the second positioning center wheel is used to drive the second adjusting member to move.

[0013] Furthermore, the eccentric adjustment device also includes a linear drive assembly that drives the eccentric adjustment bracket to move. The linear drive assembly includes a linear drive cylinder, a linear drive screw, and a linear drive connecting frame. The output piston rod of the linear drive cylinder is connected to the linear drive connecting frame, the other end of the linear drive connecting frame is connected to the linear drive screw, and the other end of the linear drive screw is connected to the eccentric adjustment bracket.

[0014] Furthermore, the linear drive connecting frame is connected to a vertical adjustment device, which includes a vertical adjustment slide rail, a first vertical adjustment slider, and a second vertical adjustment slider. The vertical adjustment slide rail is mounted on the frame, and the first vertical adjustment slider and the second vertical adjustment slider are provided on the vertical adjustment slide rail. The first vertical adjustment slider is connected to the linear drive connecting frame, and the second vertical adjustment slider is connected to the eccentric adjustment bracket.

[0015] The above technical solution has the following beneficial effects: This invention relates to a device for machining spline curve workpieces. The device can be used to machine irregular curved surfaces such as eccentric or coaxial workpieces. It can accurately determine the eccentricity, thereby determining the initial machining positioning datum. Even in subsequent machining processes, the machining positioning datum is still guaranteed, which facilitates the use of CNC machine tools to complete eccentric or coaxial workpieces.

[0016] This invention first adjusts the frame to a suitable position using a vertical attitude adjustment device and a rotary attitude adjustment device 5. Specifically, the vertical attitude adjustment motor of the vertical attitude adjustment device drives the vertical attitude adjustment screw, converting the rotational motion of the vertical attitude adjustment screw into the linear motion of the vertical attitude adjustment nut. This, in turn, causes the vertical attitude adjustment bracket and the frame to move linearly. Furthermore, the vertical attitude adjustment slide rail and the vertical attitude adjustment slider enhance the stability of the entire movement, thereby adjusting the eccentric adjustment structure to a suitable position in the vertical direction. Next, the rotary attitude adjustment motor of the rotary attitude adjustment device 5 drives the first and second rotary attitude adjustment shafts to rotate, causing the first and second rotary attitude adjustment brackets to rotate, which in turn causes the frame to rotate, thus adjusting the eccentric adjustment structure to a suitable position in the horizontal plane. Finally, the eccentric adjustment structure is adjusted. Specifically, a positioning center wheel is used, which is located at the center of the mounting frame. Under the action of the positioning center wheel, both the first and second adjusting components pass through it. When there is no eccentric adjustment component, the distance from the first adjusting seat to the positioning center wheel is the same as the distance from the second adjusting seat to the positioning center wheel. At this time, the CNC machine tool can process coaxial workpieces. When it is necessary to process eccentric workpieces, assuming the eccentricity is 5mm, the outer side of the first or second adjusting seat is adjusted by 10mm using the eccentric adjustment component. At this time, the positioning center wheel is 5mm away from the center of the workpiece being processed. Using this as the positioning reference point, the processing work can be completed.

[0017] The eccentric adjustment structure of this invention uses an adjusting screw motor to drive the adjusting screw, thereby changing the distance between the first adjusting seat and the second adjusting seat, allowing for arbitrary adjustment of the relative distance between them. Therefore, in conjunction with the XY slide, vertical attitude adjustment device, and rotary attitude adjustment device 5 of a CNC machine tool, the eccentric adjustment structure can more accurately grip the workpiece to be processed, enabling the CNC machine tool to complete the processing work more efficiently. Thus, the eccentric adjustment structure of this invention can be used not only for processing eccentric workpieces but also for processing coaxial workpieces, significantly improving the processing accuracy of the workpiece. In particular, it can efficiently and accurately complete the processing of irregular curved surface workpieces such as Mecanum hubs, oil pumps driven by eccentric shafts, crankshafts in automobile engines, and complex components. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings: Figure 1 This is a three-dimensional structural diagram of an equipment for processing spline curve workpieces according to Embodiment 1 of the present invention.

[0019] Figure 2 This is a front view structural diagram of an equipment for processing spline curve workpieces according to Embodiment 1 of the present invention.

[0020] Figure 3 This is a schematic diagram of the left-side structure of an equipment for processing spline curve workpieces according to Embodiment 1 of the present invention.

[0021] Figure 4 This is a right-side structural schematic diagram of an equipment for processing spline curve workpieces according to Embodiment 1 of the present invention.

[0022] Figure 5 This is a top view of a device for processing spline curve workpieces according to Embodiment 1 of the present invention.

[0023] Figure 6 This is a three-dimensional structural diagram of the eccentric adjustment structure in Embodiment 1 of the present invention.

[0024] Figure 7 This is a front view schematic diagram of the eccentric adjustment structure in Embodiment 1 of the present invention.

[0025] Figure 8 This is a side view of the eccentric adjustment structure in Embodiment 1 of the present invention.

[0026] Figure 9 This is a schematic diagram of the internal structure of the eccentric adjustment structure in Embodiment 1 of the present invention.

[0027] Figure 10 This is a schematic diagram of the internal structure of the eccentric adjustment structure in Embodiment 1 of the present invention from another perspective.

[0028] Figure 11 This is a schematic diagram of the linear drive assembly in Embodiment 1 of the present invention.

[0029] Figure 12 This is a schematic diagram of the eccentric adjustment device in Embodiment 1 of the present invention.

[0030] Figure 13 This is a schematic diagram of the structure of the reset device in Embodiment 1 of the present invention, which is installed in the mounting groove of the mounting bracket.

[0031] Figure 14 This is a schematic diagram of the eccentric adjustment component of Embodiment 2 of the present invention, which is located on the side near the eccentric adjustment bracket.

[0032] In the diagram: 1-frame, 2-grinding wheel processing structure, 3-eccentric adjustment structure, 4-vertical adjustment device, 5-rotational adjustment device 5; 6-horizontal adjustment component; 7-vertical adjustment component; 8-base; 9-clamping rotation device; 10-Mecanum hub; 11-reset device; 12-mounting slot.

[0033] 111-Reset connector, 112-Reset spring; 113-Reset guide rod.

[0034] 21-Grinding wheel, 22-Grinding wheel for machining motor.

[0035] 31-Mounting bracket; 32-Adjusting seat; 33-Eccentric adjustment device.

[0036] 321-First adjusting seat; 322-Second adjusting seat; 323-First clamping member; 324-Second clamping member.

[0037] 331-Positioning center wheel; 332-Eccentric adjustment bracket; 333-Adjusting component; 334-Eccentric adjustment assembly; 335-Linear drive assembly.

[0038] 3311 - First positioning center wheel; 3312 - Second positioning center wheel.

[0039] 3331 - First adjusting component; 3332 - Second adjusting component; 3333 - Adjusting hole; 3334 - Adjusting chain mounting plate.

[0040] 3351 - Linear drive cylinder; 3352 - Linear drive screw; 3353 - Linear drive connecting frame.

[0041] 41 Vertical attitude adjustment motor; 42 Vertical attitude adjustment screw; 43 Vertical attitude adjustment nut; 44 Vertical attitude adjustment bracket; 45 First vertical attitude adjustment slide rail; 46 Second vertical attitude adjustment slide rail; 47 First vertical attitude adjustment slider; 48 Second vertical attitude adjustment slider.

[0042] 51-Rotary attitude adjustment motor; 52-First rotary attitude adjustment seat; 53-Second rotary attitude adjustment seat; 54-First rotary attitude adjustment shaft; 55-Second rotary attitude adjustment shaft; 56-First rotary attitude adjustment bracket; 57-Second rotary attitude adjustment bracket.

[0043] 3341 - Adjusting screw; 3342 - Adjusting screw motor.

[0044] 61-Horizontal adjustment slide rail; 62-Horizontal adjustment slider.

[0045] 71-Vertical adjustment slide rail; 72-First vertical adjustment slider; 73-Second vertical adjustment slider.

[0046] 91 - Clamping rotary motor; 92 - Clamping rotary synchronous belt assembly. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the invention. Example 1

[0048] See Figure 1-13 A device for processing spline curve workpieces includes a grinding wheel processing structure 2 and an eccentric adjustment structure 3, wherein the grinding wheel processing structure 2 is disposed above the eccentric adjustment structure 3.

[0049] The grinding wheel processing structure 2 includes a grinding wheel 21 and a grinding wheel processing motor 22 for driving the grinding wheel 21.

[0050] The eccentric adjustment structure 3 includes a mounting frame 31, adjustment seats 32 located on both sides of the mounting frame 31, and an eccentric adjustment device 33 that drives the adjustment seats 32 to perform eccentric adjustment.

[0051] As a further explanation of this embodiment, the adjustment seat 32 includes a first adjustment seat 321 and a second adjustment seat 322, wherein the first adjustment seat 321 is located on one side of the mounting bracket 31 and the second adjustment seat 322 is located on the other side of the mounting bracket 31.

[0052] As a further explanation of this embodiment, the first adjusting seat 321 is provided with a first clamping member 323 for clamping the workpiece 10, and the second adjusting seat 322 is provided with a second clamping member 324 for clamping the workpiece 10. The workpiece 10 is disposed between the first clamping member 323 and the second clamping member 324, and the first clamping member 323 and the second clamping member 324 cooperate with each other to clamp the workpiece 10.

[0053] As a further explanation of this embodiment, the first clamping member 323 or the second clamping member 324 is provided with a clamping rotation device 9 for rotating the workpiece 10. This clamping rotation device 9 includes a clamping rotation motor 91 and a clamping rotation timing belt assembly 92. The output end of the clamping rotation motor 91 is connected to the clamping rotation timing belt assembly 92, which is connected to the first clamping member 323 or the second clamping member 324. The clamping rotation device 9 is not only used to clamp the workpiece 10, but more importantly, it can be used to rotate the workpiece 10 during cutting and other operations, facilitating the clamping of the workpiece 10 in conjunction with the grinding wheel 21 machining structure 2.

[0054] As a further explanation of this embodiment, the eccentric adjustment device 33 includes a positioning center wheel 331, an eccentric adjustment bracket 332, an adjusting member 333, and an eccentric adjustment assembly 334 that drives the adjusting member 333 to move. The positioning center wheel 331 is fixedly disposed in the middle of the mounting frame 31. The adjusting member 333 includes a first adjusting member 3331 and a second adjusting member 3332. One end of the first adjusting member 3331 is connected to the first adjusting seat 321, and the other end of the first adjusting member 3331 is connected to the eccentric adjustment bracket 332 through the positioning center wheel 331. One end of the second adjusting member 3332 is connected to the second adjusting seat 322, and the other end of the second adjusting member 3332 is connected to the eccentric adjustment bracket 332 through the positioning center wheel 331.

[0055] As a further explanation of this embodiment, the device also includes a vertical attitude adjustment device 4, which includes a vertical attitude adjustment motor 41, a vertical attitude adjustment screw 42, a vertical attitude adjustment nut 43, a vertical attitude adjustment bracket 44, a vertical attitude adjustment slide rail, and a vertical attitude adjustment slider. The vertical attitude adjustment slide rail includes a first vertical attitude adjustment slide rail 45 and a second vertical attitude adjustment slide rail 46. The vertical attitude adjustment slider includes a first vertical attitude adjustment slider 47 and a second vertical attitude adjustment slider 48. The vertical attitude adjustment motor 41 is connected to the vertical attitude adjustment screw 42, and the vertical attitude adjustment screw 42 is provided with the vertical... A vertical attitude adjustment nut 43 is provided, and a vertical attitude adjustment bracket 44 is connected to the lower part of the vertical attitude adjustment nut 43. A first vertical attitude adjustment slider 47 is connected to one side of the vertical attitude adjustment bracket 44. The first vertical attitude adjustment slider 47 is connected to a first vertical attitude adjustment slide rail 45. The first vertical attitude adjustment slide rail 45 is installed on one side of the frame 1. A second vertical attitude adjustment slider 48 is connected to the other side of the vertical attitude adjustment bracket 44. The second vertical attitude adjustment slider 48 is connected to a second vertical attitude adjustment slide rail 46. The second vertical attitude adjustment slide rail 46 is installed on the other side of the frame 1. The vertical attitude adjustment motor 41 of the vertical attitude adjustment device 4 drives the vertical attitude adjustment screw 42 to move, converting the rotational motion of the vertical attitude adjustment screw 42 into the linear motion of the vertical attitude adjustment nut 43, which in turn drives the vertical attitude adjustment bracket 44 and the frame 1 to make linear motion. Under the action of the vertical attitude adjustment slide rail and the vertical attitude adjustment slider, the stability of the entire motion is improved, thereby adjusting the eccentric adjustment structure 3 to a suitable position in the vertical direction.

[0056] As a further explanation of this embodiment, the vertical attitude adjustment slider is connected to a rotation attitude adjustment device 55. The attitude adjustment device includes a rotation attitude adjustment motor 51, a first rotation attitude adjustment seat 52, a second rotation attitude adjustment seat 53, a first rotation attitude adjustment shaft 54, a second rotation attitude adjustment shaft 55, a first rotation attitude adjustment bracket 56, and a second rotation attitude adjustment bracket 57. The first rotation attitude adjustment seat 52 is located on one side of the frame 1, and the second rotation attitude adjustment seat 53 is located on the other side of the frame 1. Both the first rotation attitude adjustment seat 52 and the second rotation attitude adjustment seat 53 are mounted on the base 8. The first rotary attitude adjustment base 52 is provided with a first rotary attitude adjustment shaft 54, which is connected to a first rotary attitude adjustment bracket 56. The first rotary attitude adjustment bracket 56 is connected to a first vertical attitude adjustment slider 47. The second rotary attitude adjustment base 53 is provided with a second rotary attitude adjustment shaft 55, which is connected to a second rotary attitude adjustment bracket 57. The second rotary attitude adjustment bracket 57 is connected to a second vertical attitude adjustment slider 48. The rotary attitude adjustment motor 51 is connected to either the first rotary attitude adjustment shaft 54 ​​or the second rotary attitude adjustment shaft 55. The rotary attitude adjustment motor 51 of the rotary attitude adjustment device 55 drives the first rotary attitude adjustment shaft 54 ​​and the second rotary attitude adjustment shaft 55 to rotate, thereby driving the first rotary attitude adjustment bracket 56 and the second rotary attitude adjustment bracket 57 to rotate as well, thereby driving the frame 1 to rotate as well, thus adjusting the eccentric adjustment structure 3 to a suitable position in the horizontal plane.

[0057] As a further explanation of this embodiment, the adjusting component 333 is an adjusting chain, adjusting wire rope, adjusting belt, or adjusting timing belt. In this embodiment, an adjusting chain is used, wherein both ends of the adjusting chain are provided with adjusting chain mounting plates 3334, through which the two ends of the adjusting chain are respectively connected to the adjusting seat 32 and the eccentric adjustment bracket 332.

[0058] Specifically, taking the aforementioned adjusting chain as an example, the adjusting chain includes a first adjusting chain and a second adjusting chain. One end of the first adjusting chain is connected to the adjusting chain mounting plate 3334, which is disposed on the first adjusting seat 321. The other end of the first adjusting chain is connected to the adjusting chain mounting plate 3334 via the positioning center wheel 331. The adjusting chain mounting plate 3334 is disposed on the eccentric adjustment bracket 332. One end of the second adjusting chain is connected to the adjusting chain mounting plate 3334, which is disposed on the second adjusting seat 322. The other end of the second adjusting chain is connected to the adjusting chain mounting plate 3334 via the positioning center wheel 331. The adjusting chain mounting plate 3334 is disposed on the eccentric adjustment bracket 332. As a further explanation of this embodiment, the eccentric adjustment component 334 is disposed on the side close to the adjustment seat 32.

[0059] As a further explanation of this embodiment, the eccentric adjustment assembly 334 includes an adjustment screw 3341 disposed in the first adjustment seat 321 and / or the second adjustment seat 322. One end of the adjustment screw 3341 is connected to the adjustment hole 3333 of the adjustment member 333, and the other end of the adjustment screw 3341 is connected to the first adjustment seat 321 and / or the second adjustment seat 322.

[0060] Specifically, taking the aforementioned adjusting chain as an example, one end of the adjusting screw 3341 is connected to the adjusting hole 3333 of the link chain mounting plate, and the other end of the adjusting screw 3341 is connected to the first adjusting seat 321 and / or the second adjusting seat 322.

[0061] In addition, in order to automatically adjust the adjusting screw 3341, an adjusting screw motor 3342 can be connected to the end of the adjusting screw 3341.

[0062] As a further explanation of this embodiment, the mounting bracket 31 is provided with a reset device 11 on each side, which matches the adjustment seat. The reset device 11 includes a reset connecting seat 111, a reset spring 112, and a reset guide rod 113. The reset connecting seat 111, the reset spring 112, and the reset guide rod 113 are all disposed in the mounting groove 12 of the mounting bracket 31. The reset connecting seat 111 is fixedly connected to the adjustment seat. The reset guide rod 113 is provided on the inner side of the reset connecting seat 111. The reset spring 112 is sleeved on the reset guide rod 113. The outer side of the reset spring 112 abuts against the reset connecting seat 111, and the inner end of the reset spring 112 abuts against the mounting bracket. By setting up a reset device 11 consisting of a reset connector 111, a reset spring 112, and a reset guide rod 113, when the first clamping member 323 and the second clamping member 324 on the first and second adjusting seats are processing the workpiece 10, the reset spring 112 is in a compressed or extended state due to the adjustment of the first and second adjusting seats. After the first clamping member 323 and the second clamping member 324 have finished processing the workpiece 10, the linear drive assembly no longer acts on the eccentric adjustment bracket. Under the action of the reset spring 112, the first and second adjusting seats will return to their original positions. At this time, the reset spring 112 returns to its natural length state, thereby achieving the reset function.

[0063] As a further explanation of this embodiment, the positioning center wheel 331 includes a first positioning center wheel 3331 and a second positioning center wheel 3312. The first positioning center wheel 3331 and the second positioning center wheel 3312 are coaxially arranged, and the first positioning center wheel 3331 is used to drive the first adjusting member 3331 to move, and the second positioning center wheel 3312 is used to drive the second adjusting member 3332 to move.

[0064] As a further explanation of this embodiment, the mounting bracket 31 is provided with a horizontal adjustment component 6, which includes a horizontal adjustment slide rail 61 and a horizontal adjustment slider 62. The horizontal adjustment slide rail 61 is provided with a horizontal adjustment slider 62, and the horizontal adjustment slider 62 is connected to the adjustment seat 32.

[0065] Specifically, in this embodiment, two sets of the horizontal adjustment components 6 are provided, and the two sets of horizontal adjustment components 6 are respectively installed on the front and rear sides of the mounting frame 31, so as to more conveniently adjust the first adjustment seat 321 and the second adjustment seat 322.

[0066] As a further explanation of this embodiment, photoelectric switches are provided on both sides of the mounting bracket 31.

[0067] As a further explanation of this embodiment, the eccentric adjustment device 33 also includes a linear drive assembly 335 that drives the eccentric adjustment bracket 332 to move. The linear drive assembly 335 includes a linear drive cylinder 3351, a linear drive screw 3352, and a linear drive connecting frame 3353. The output piston rod of the linear drive cylinder 3351 is connected to the linear drive connecting frame 3353. The other end of the linear drive connecting frame 3353 is connected to the linear drive screw 3352. The other end of the linear drive screw 3352 is connected to the eccentric adjustment bracket 332.

[0068] As a further explanation of this embodiment, the linear drive connecting frame 3353 is connected to a vertical adjustment component 7. The vertical adjustment component 7 includes a vertical adjustment slide rail 71, a first vertical adjustment slider 72, and a second vertical adjustment slider 73. The vertical adjustment slide rail 71 is mounted on the frame 1, and the first vertical adjustment slider 72 and the second vertical adjustment slider 73 are provided on the vertical adjustment slide rail 71. The first vertical adjustment slider 72 is connected to the linear drive connecting frame 3353, and the second vertical adjustment slider 73 is connected to the eccentric adjustment bracket 332.

[0069] The working principle of this embodiment: The structure of this embodiment is generally installed on the CNC machine tool for machining workpiece 10. It can be used for machining workpiece 10 with irregular curved surfaces such as eccentric workpiece 10 or coaxial workpiece 10. It can accurately determine the eccentricity, thereby determining the initial machining positioning reference. Even in the subsequent machining process, the machining positioning reference is still guaranteed, which makes it convenient to cooperate with the CNC machine tool to complete the eccentric workpiece 10 or coaxial workpiece 10.

[0070] This embodiment uses the machining of a Mecanum wheel hub 10 as an example. In this embodiment, the CNC machine tool's XY slide (not shown in the figure), vertical adjustment device 4, and rotary adjustment device 55, in conjunction with the first adjustment seat 321 and the second adjustment seat 322, can smoothly grip the Mecanum wheel hub 10. The first clamping member 323 and the second clamping member 324 clamp the Mecanum wheel hub 10 to be machined. Specifically, the present invention first adjusts the frame 1 to a suitable position using the vertical adjustment device 4 and the rotary adjustment device 55. Specifically, the vertical adjustment motor 41 of the vertical adjustment device 4 drives the vertical adjustment screw 42 to move, converting the rotational motion of the vertical adjustment screw 42 into the linear motion of the vertical adjustment nut 43, which in turn drives the vertical adjustment bracket 44 and the frame 1 to follow suit in linear motion. Furthermore, the stability of the entire movement is improved under the action of the vertical adjustment slide rail and the vertical adjustment slider, thereby adjusting the eccentric adjustment structure 3 to a suitable position in the vertical direction. Furthermore, the rotary adjustment motor 51 of the rotary adjustment device 55 drives the first rotary adjustment shaft 54 ​​and the second rotary adjustment shaft 55 to rotate, thereby driving the first rotary adjustment bracket 56 and the second rotary adjustment bracket 57 to rotate as well, which in turn drives the frame 1 to rotate, thus adjusting the eccentric adjustment structure 3 to a suitable position in the horizontal plane. Finally, the eccentric adjustment structure 3 is adjusted. Specifically, the positioning center wheel is set at the center of the mounting frame. Under the action of the positioning center wheel, both the first and second adjustment components pass through the positioning center wheel. When there is no eccentric adjustment component, the distance from the first adjustment seat to the positioning center wheel is the same as the distance from the second adjustment seat to the positioning center wheel. At this time, the CNC machine tool can process the coaxial workpiece 10. When it is necessary to process the eccentric workpiece 10, assuming the eccentricity is 5mm, the outer side of the first or second adjustment seat is adjusted by 10mm through the eccentric adjustment component. At this time, the positioning center wheel is 5mm away from the center of the workpiece 10 to be processed, which serves as the positioning reference point for processing. Finally, the linear drive assembly tightens the first adjusting member 3331 and the second adjusting member 3332, ensuring that both the first adjusting member 3331 and the second adjusting member 3332 are in a tensioned state. At this time, without the adjustment of the eccentric adjustment assembly, the distance from the first adjusting seat to the positioning center wheel is the same as the distance from the second adjusting seat to the positioning center wheel. At this time, the CNC machine tool can rotate and adjust the position of the Mecanum hub 10 by using the vertical attitude adjustment device 4 and the rotary attitude adjustment device 55, thereby cooperating with the grinding wheel 21 to complete the surface machining of the Mecanum hub 10.

[0071] The eccentric adjustment structure 3 of this invention drives the adjusting screw to move via an adjusting screw motor, thereby changing the distance between the first adjusting seat and the second adjusting seat, allowing for arbitrary adjustment of the relative distance between them. Therefore, the eccentric adjustment structure 3, in conjunction with the XY slide, vertical attitude adjustment device 4, and rotary attitude adjustment device 55 of the CNC machine tool, can more precisely grip the workpiece 10 to be processed, enabling the CNC machine tool to complete the processing work more efficiently. Thus, the eccentric adjustment structure 3 of this invention can be used not only for processing eccentric workpieces 10 but also for processing coaxial workpieces 10, significantly improving the processing accuracy of the workpiece 10, especially for applications such as Mecanum wheel hubs and eccentric shaft-driven oil pumps. It can also efficiently and accurately process curved surface workpieces 10, such as crankshafts in automobile engines. Example 2

[0072] The difference from Example 1 is that, see Figure 14 The eccentric adjustment assembly 334 is disposed on one side near the eccentric adjustment bracket 332. The eccentric adjustment assembly 334 includes an adjustment screw 3341 disposed on the eccentric adjustment bracket 332. One end of the adjustment screw 3341 is connected to the adjustment hole 3333 of the adjustment chain mounting plate 3334, and the other end of the adjustment screw 3341 is connected to the eccentric adjustment bracket 332.

[0073] As a further explanation of this embodiment, the adjusting screw 3341 is connected to an adjusting screw motor 3342, which is disposed inside the eccentric adjustment bracket 332 to facilitate automatic adjustment of the adjusting screw 3341.

[0074] The above are merely specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on the present invention to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of the present invention.

Claims

1. A device for processing spline curve workpieces, characterized in that: It includes a grinding wheel processing structure and an eccentric adjustment structure, wherein the grinding wheel processing structure is disposed above the eccentric adjustment structure; The grinding wheel processing structure includes a grinding wheel and a grinding wheel processing motor for driving the grinding wheel to work; The eccentric adjustment structure includes a mounting frame, adjustment seats located on both sides of the mounting frame, and an eccentric adjustment device that drives the adjustment seats to perform eccentric adjustment. The adjustment seat includes a first adjustment seat and a second adjustment seat, wherein the first adjustment seat is located on one side of the mounting frame and the second adjustment seat is located on the other side of the mounting frame; The eccentric adjustment device includes a positioning center wheel, an eccentric adjustment bracket, and an adjustment component. The positioning center wheel is fixedly disposed in the middle of the mounting frame. The adjustment component includes a first adjustment component and a second adjustment component. One end of the first adjustment component is connected to the first adjustment seat, and the other end of the first adjustment component is connected to the eccentric adjustment bracket through the positioning center wheel. One end of the second adjustment component is connected to the second adjustment seat, and the other end of the second adjustment component is connected to the eccentric adjustment bracket through the positioning center wheel. The first adjusting seat is provided with a first clamping member for clamping the workpiece, and the second adjusting seat is provided with a second clamping member for clamping the workpiece, and the workpiece is disposed between the first clamping member and the second clamping member.

2. The equipment for processing spline curve workpieces according to claim 1, characterized in that: It also includes a vertical attitude adjustment device, which comprises a vertical attitude adjustment motor, a vertical attitude adjustment screw, a vertical attitude adjustment nut, a vertical attitude adjustment bracket, a vertical attitude adjustment slide rail, and a vertical attitude adjustment slider. The vertical attitude adjustment slide rail includes a first vertical attitude adjustment slide rail and a second vertical attitude adjustment slide rail. The vertical attitude adjustment slider includes a first vertical attitude adjustment slider and a second vertical attitude adjustment slider. The vertical attitude adjustment motor is connected to the vertical attitude adjustment screw. The vertical attitude adjustment nut is provided on the vertical attitude adjustment screw. The lower part of the vertical attitude adjustment nut is connected to the vertical attitude adjustment bracket. The first vertical attitude adjustment slider is connected to one side of the vertical attitude adjustment bracket. The first vertical attitude adjustment slider is connected to the first vertical attitude adjustment slide rail. The first vertical attitude adjustment slide rail is installed on one side of the frame. The second vertical attitude adjustment slider is connected to the other side of the vertical attitude adjustment bracket. The second vertical attitude adjustment slider is connected to the second vertical attitude adjustment slide rail. The second vertical attitude adjustment slide rail is installed on the other side of the frame.

3. The equipment for processing spline curve workpieces according to claim 2, characterized in that: The vertical attitude adjustment slider is connected to a rotary attitude adjustment device, which includes a rotary attitude adjustment motor, a first rotary attitude adjustment seat, a second rotary attitude adjustment seat, a first rotary attitude adjustment shaft, a second rotary attitude adjustment shaft, a first rotary attitude adjustment bracket, and a second rotary attitude adjustment bracket. The first rotary attitude adjustment seat is located on one side of the frame, and the second rotary attitude adjustment seat is located on the other side of the frame. Both the first and second rotary attitude adjustment seats are mounted on the frame. The first rotary attitude adjustment seat has a first rotary attitude adjustment shaft, which is connected to the first rotary attitude adjustment bracket. The first rotary attitude adjustment bracket is connected to the first vertical attitude adjustment slider. The second rotary attitude adjustment seat has a second rotary attitude adjustment shaft, which is connected to the second rotary attitude adjustment bracket. The second rotary attitude adjustment bracket is connected to the second vertical attitude adjustment slider. The rotary attitude adjustment motor is connected to either the first or second rotary attitude adjustment shaft.

4. The equipment for processing spline curve workpieces according to claim 1, characterized in that: The adjusting component is an adjusting chain, adjusting wire rope, adjusting belt, or adjusting timing belt.

5. The equipment for processing spline curve workpieces according to claim 1, characterized in that: The eccentric adjustment structure also includes an eccentric adjustment component that drives the adjustment member to adjust its movement. The eccentric adjustment component is located on the side near the adjustment seat or on the side near the eccentric adjustment bracket.

6. The equipment for processing spline curve workpieces according to claim 5, characterized in that: The eccentric adjustment assembly includes an adjustment screw disposed on the first adjustment seat and / or the second adjustment seat. One end of the adjustment screw is connected to the adjustment hole of the adjustment member, and the other end of the adjustment screw is connected to the first adjustment seat and / or the second adjustment seat. The adjustment screw is connected to an adjustment screw motor, and the adjustment screw motor is disposed in the eccentric adjustment bracket. Alternatively, the eccentric adjustment assembly may include an adjustment screw disposed on the eccentric adjustment bracket, one end of the adjustment screw being connected to the adjustment hole of the adjustment member, the other end of the adjustment screw being connected to the eccentric adjustment bracket, and the adjustment screw being connected to an adjustment screw motor disposed within the eccentric adjustment bracket.

7. The equipment for processing spline curve workpieces according to any one of claims 1-6, characterized in that: The mounting bracket has a reset device on each side that matches the adjustment seat. The reset device includes a reset connecting seat, a reset spring, and a reset guide rod. The reset connecting seat, reset spring, and reset guide rod are all disposed in the mounting groove of the mounting bracket. The reset connecting seat is fixedly connected to the adjustment seat. The reset guide rod is disposed on the inner side of the reset connecting seat. The reset spring is sleeved on the reset guide rod. The outer side of the reset spring abuts against the reset connecting seat, and the inner end of the reset spring abuts against the mounting bracket.

8. An apparatus for processing spline curve workpieces according to any one of claims 1-6, characterized in that: The positioning center wheel includes a first positioning center wheel and a second positioning center wheel, which are coaxially arranged. The first positioning center wheel is used to drive the first adjusting member to move, and the second positioning center wheel is used to drive the second adjusting member to move.

9. An apparatus for processing spline curve workpieces according to any one of claims 1-6, characterized in that: The eccentric adjustment device further includes a linear drive assembly that drives the eccentric adjustment bracket to move. The linear drive assembly includes a linear drive cylinder, a linear drive screw, and a linear drive connecting frame. The output piston rod of the linear drive cylinder is connected to the linear drive connecting frame, the other end of the linear drive connecting frame is connected to the linear drive screw, and the other end of the linear drive screw is connected to the eccentric adjustment bracket.

10. The equipment for processing spline curve workpieces according to claim 9, characterized in that: The linear drive connecting frame is connected to a vertical adjustment device, which includes a vertical adjustment slide rail, a first vertical adjustment slider, and a second vertical adjustment slider. The vertical adjustment slide rail is mounted on the frame, and the first vertical adjustment slider and the second vertical adjustment slider are provided on the vertical adjustment slide rail. The first vertical adjustment slider is connected to the linear drive connecting frame, and the second vertical adjustment slider is connected to the eccentric adjustment bracket.

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