Cam polishing machine

Abstract

The utility model relates to the technical field of eccentric shaft part production, and discloses a cam polishing machine which comprises a rack, a polishing wheel, a rotary clamping device and a radial moving device. The polishing wheel is arranged on the rack; the rotary clamping device is arranged on one side of the polishing wheel and used for clamping or loosening a rotating shaft part of the eccentric shaft part so that an eccentric shaft part of the eccentric shaft part can be parallel to a rotating shaft of the polishing wheel, and the eccentric shaft part can be driven to rotate around the axis of the rotating shaft part. And the radial moving device is arranged on the rack and is in transmission connection with the rotary clamping device, and the radial moving device is used for driving the rotary clamping device to move relative to the polishing wheel in any radial direction of the polishing wheel, so that the peripheral wall of the eccentric shaft part is in contact with the wheel surface of the polishing wheel. The cam polishing machine provided by the utility model can solve the problems of how to polish eccentric shaft parts of eccentric shaft parts with different specifications and improving the universality and the flexibility of the polishing machine.

Description

Technical Field

[0001] This utility model relates to the field of eccentric shaft parts manufacturing technology, specifically to a cam polishing machine. Background Technology

[0002] Eccentric shafts are important mechanical transmission components, mainly consisting of an eccentric shaft section and a rotating shaft section. The eccentric shaft section is eccentrically fixed to one end of the rotating shaft section. This design allows the eccentric shaft section to generate cam motion when the rotating shaft section rotates, a characteristic that has led to its widespread application in many industrial fields such as automobiles, engines, and pumps. In the manufacturing process, eccentric shafts are typically mass-produced using die forging, but forged eccentric shafts have a relatively high surface roughness. Therefore, before leaving the factory, eccentric shafts need to be polished to improve surface finish and dimensional accuracy. However, the eccentric structure of the eccentric shaft section makes polishing the eccentric shaft section particularly difficult. Traditional polishing methods for eccentric shafts often involve manual polishing, which is not only inefficient but also difficult to control in terms of polishing quality, easily affected by human factors, resulting in inconsistent polishing results.

[0003] To overcome the shortcomings of manual polishing and improve polishing efficiency and quality, existing technology provides a polishing machine for eccentric shaft parts. This polishing machine mainly consists of a rotary clamping mechanism and a polishing mechanism, wherein the polishing mechanism includes a polishing wheel and a polishing motor. In use, the rotary clamping mechanism clamps the rotating shaft portion of the eccentric shaft part, causing the outer peripheral wall of the eccentric shaft portion to contact the polishing wheel. Then, the polishing motor is started, driving the polishing wheel to rotate, while simultaneously the rotary clamping mechanism drives the rotating shaft to rotate around the axis of the eccentric shaft, thereby rotating the eccentric shaft portion and achieving the polishing process.

[0004] Although this type of polishing machine improves polishing efficiency to some extent, its rotating clamping mechanism lacks an adjustment structure, which means that this polishing machine can only process eccentric shaft parts of the same specification. When it is necessary to process eccentric shaft parts of other different specifications, the existing polishing machine is often not directly applicable and requires cumbersome adjustments or replacement of the clamping mechanism. This not only increases the difficulty and cost of operation, but also limits the versatility and flexibility of the polishing machine, and cannot meet the market's demand for processing eccentric shaft parts of different specifications.

[0005] Given the aforementioned limitations, it is necessary to develop a cam polishing machine with versatility and flexibility to meet the market demand for processing eccentric shaft parts of different specifications. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] This utility model provides a cam polishing machine, which can at least solve the technical problem of how to polish the eccentric shaft part of eccentric shaft parts of different specifications, thereby improving the versatility and flexibility of the polishing machine.

[0008] (II) Technical Solution

[0009] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a cam polishing machine, comprising:

[0010] frame;

[0011] Polishing wheel, mounted on the frame;

[0012] A rotary clamping device is located on one side of the polishing wheel and is used to clamp or release the rotating shaft part of the eccentric shaft part so that the eccentric shaft part of the eccentric shaft part is arranged parallel to the rotating shaft of the polishing wheel, and drives the eccentric shaft part to rotate around the axis of the rotating shaft part.

[0013] A radial moving device is mounted on the frame and is connected to the rotary clamping device for transmission. The radial moving device is used to drive the rotary clamping device to move relative to the polishing wheel in any radial direction so that the outer peripheral wall of the eccentric shaft contacts the wheel surface of the polishing wheel.

[0014] In a further configuration, the aforementioned rotary clamping device includes a clamping mechanism and a rotary mechanism, with the clamping mechanism eccentrically connected to the output end of the rotary mechanism, and the radial moving device being drively connected to the rotary mechanism.

[0015] The clamping mechanism is used to clamp or release the rotating shaft, and the rotating mechanism is used to drive the eccentric shaft part to rotate around the axis of the rotating shaft.

[0016] Furthermore, the aforementioned clamping mechanism includes:

[0017] Two clamping arms, with a clamping space between the two clamping arms for clamping the rotating part;

[0018] The clamping drive is eccentrically connected to the output end of the rotating mechanism and is connected to the two clamping arms via a transmission. The clamping drive is used to drive the two clamping arms to move closer or further apart to reduce or expand the clamping space.

[0019] Furthermore, the two clamping arms mentioned above are arranged symmetrically to each other, and each of the two clamping arms has an arc-shaped or V-shaped clamping recess on the opposite side, forming a hugging space between the two clamping recesses.

[0020] Furthermore, the aforementioned rotary clamping device is provided in two quantities, and the two rotary clamping devices are connected to the same radial moving device in a transmission manner, and the two rotary clamping devices are arranged symmetrically with respect to the axis of the polishing wheel.

[0021] Furthermore, the aforementioned cam polishing machine also includes an axial moving device, which is located on the output end of the radial moving device. The output end of the axial moving device is connected to the rotary clamping device. The axial moving device is used to drive the rotary clamping device to displace relative to the polishing wheel along the axial direction of the polishing wheel, so that the eccentric shaft part moves along the axial direction of the polishing wheel.

[0022] Furthermore, the aforementioned cam polishing machine also includes a position control device, which is mounted on the frame and used to control the relative position of the rotating clamping device and the polishing wheel.

[0023] (III) Beneficial Effects

[0024] Compared with the prior art, the cam polishing machine provided by this utility model has the following beneficial effects:

[0025] In use, the cam polishing machine provided by this utility model first clamps the rotating shaft portion of the eccentric shaft part using a rotary clamping mechanism; then, a radial moving device drives the rotary clamping device to move radially toward the polishing wheel, so that the outer peripheral wall of the eccentric shaft portion contacts the wheel surface of the polishing wheel; finally, the polishing wheel polishes the outer peripheral wall of the eccentric shaft portion. During this polishing process, the rotary clamping device drives the eccentric shaft part to rotate around the axis of the rotating shaft portion, thereby causing the eccentric shaft portion to rotate around the axis of the rotating shaft portion. Simultaneously, the radial moving device drives the rotary clamping device to move radially toward or away from the polishing wheel, ensuring that the outer peripheral wall of the eccentric shaft portion is always in contact with the wheel surface of the polishing wheel. As can be seen, this cam polishing machine, through its rotating clamping device, can drive the eccentric shafts of eccentric shaft parts of different specifications to rotate. Through its radial movement device, it can adjust the relative position of the eccentric shaft and the polishing wheel along the radial direction of the polishing wheel according to the movement trajectory of the eccentric shaft around the rotating shaft, ensuring that the outer peripheral wall of the eccentric shaft is always in contact with the wheel surface of the polishing wheel, thereby achieving polishing of the eccentric shafts of eccentric shaft parts of different specifications. In summary, this cam polishing machine not only replaces manual polishing, improving the production efficiency and polishing quality of eccentric shaft parts, but also effectively enhances the versatility and flexibility of the polishing machine, meeting market demands for polishing the eccentric shafts of eccentric shaft parts of different specifications. Attached Figure Description

[0026] Figure 1 This is a perspective view of the cam polishing machine in the embodiment.

[0027] Figure 2 This is a perspective view of the cam polishing machine from a second viewpoint in the embodiment;

[0028] Figure 3 This is a partial structural schematic diagram of the polishing wheel and the rotating clamping device in the embodiment;

[0029] Figure 4This is a perspective view of the rotating clamping device in the embodiment.

[0030] Icon labels:

[0031] 1. Rack;

[0032] 2. Polishing wheel; 21. Shaft; 22. Wheel surface;

[0033] 3. Rotary clamping device; 31. Clamping mechanism; 311. Clamping drive component; 312. Clamping arm; 3121. Clamping recess; 313. Clamping space; 32. Rotation mechanism;

[0034] 4. Radial movement device; 5. Polishing wheel drive mechanism;

[0035] 6. Position control device; 61. Arrival detection component;

[0036] 7. Eccentric shaft parts; 71. Rotating shaft part; 72. Eccentric shaft part. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0038] This utility model provides a cam polishing machine to solve the problem of how to polish the eccentric shaft portion 72 of eccentric shaft parts 7 of different specifications, thereby improving the versatility and flexibility of the polishing machine.

[0039] See Figure 1 and Figure 2 As shown, Figure 1 This is a first-view perspective perspective view of the cam polishing machine in the embodiment. Figure 2 The image shown is a perspective view of the cam polishing machine from a second angle in the embodiment. The cam polishing machine includes a frame 1, a polishing wheel 2, a rotating clamping device 3, and a radial moving device 4.

[0040] Polishing wheel 2 is mounted on frame 1.

[0041] The rotary clamping device 3 is located on one side of the polishing wheel 2. The rotary clamping device 3 is used to clamp or release the rotating shaft portion 71 of the eccentric shaft part 7 so that the eccentric shaft portion 72 of the eccentric shaft part 7 is distributed parallel to the rotating shaft 21 of the polishing wheel 2, and drives the eccentric shaft part 7 to rotate around the axis of the rotating shaft portion 71.

[0042] The radial moving device 4 is mounted on the frame 1 by means of screwing or welding, and is connected to the rotary clamping device 3 for transmission. The radial moving device 4 is used to drive the rotary clamping device 3 to move relative to the polishing wheel 2 in any radial direction, so that the outer peripheral wall of the eccentric shaft portion 72 contacts the wheel surface 22 of the polishing wheel 2.

[0043] When using the cam polishing machine described above, firstly, the rotating shaft portion 71 of the eccentric shaft part 7 is clamped by the rotating clamping mechanism 31; then, the rotating clamping device 3 is driven by the radial moving device 4 to move radially toward the polishing wheel 2, so that the outer peripheral wall of the eccentric shaft portion 72 contacts the wheel surface 22 of the polishing wheel 2; finally, the polishing wheel 2 polishes the outer peripheral wall of the eccentric shaft portion 72. During this polishing process, the rotating clamping device 3 drives the eccentric shaft part 7 to rotate around the axis of the rotating shaft portion 71, thereby driving the eccentric shaft portion 72 to rotate around the axis of the rotating shaft portion 71. At the same time, the radial moving device 4 drives the rotating clamping device 3 to move radially toward or away from the polishing wheel 2, so that the outer peripheral wall of the eccentric shaft portion 72 is always in contact with the wheel surface 22 of the polishing wheel 2. As can be seen, the cam polishing machine can drive the eccentric shaft portion 72 of eccentric shaft parts 7 of different specifications to rotate through the rotating clamping device 3. Through the radial movement device 4, it can adjust the relative position of the eccentric shaft portion 72 and the polishing wheel 2 in a radial direction along the polishing wheel 2 according to the movement trajectory of the eccentric shaft portion 72 of the eccentric shaft part 7 around the rotating shaft portion 71, ensuring that the outer peripheral wall of the eccentric shaft portion 72 is always in contact with the wheel surface 22 of the polishing wheel 2, thereby achieving the polishing treatment of the eccentric shaft portion 72 of eccentric shaft parts 7 of different specifications. In summary, this cam polishing machine can not only replace manual polishing, improving the production efficiency and polishing quality of eccentric shaft parts 7, but also effectively improve the versatility and flexibility of the polishing machine, meeting the market demand for polishing the eccentric shaft portion 72 of eccentric shaft parts 7 of different specifications.

[0044] The polishing wheel 2 can be an existing brush wheel, and the polishing wheel 2 can be driven by an existing rotary motor-pulley drive group or rotary motor-gear drive group as the polishing wheel drive mechanism 5 to drive the polishing wheel 2 to rotate relative to the eccentric shaft part 7, thereby improving the polishing effect.

[0045] The radial moving device 4 described above can drive the rotary clamping device 3 to move relative to the polishing wheel 2 in any radial direction. This radial direction can be vertical or horizontal, etc. In this embodiment, the radial moving device 4 drives the rotary clamping device 3 to move up and down relative to the polishing wheel 2 in a vertical direction.

[0046] See Figure 1 and Figure 2As shown, in one embodiment of the rotary clamping device 3, the rotary clamping device 3 includes a clamping mechanism 31 and a rotating mechanism 32. The clamping mechanism 31 is eccentrically connected to the output end of the rotating mechanism 32 by means of screwing or welding. The radial moving device 4 is drivenly connected to the rotating mechanism 32. The clamping mechanism 31 is used to clamp or release the rotating shaft part 71, and the rotating mechanism 32 is used to drive the eccentric shaft part 7 to rotate around the axis of the rotating shaft part 71. Thus, the rotary clamping device 3, through the cooperation of the clamping mechanism 31 and the rotating mechanism 32, can clamp and rotate eccentric shaft parts 7 of different specifications. The eccentric connection of the clamping mechanism 31 to the output end of the rotating mechanism 32 facilitates the rotation of the eccentric shaft part 7 around the axis of the rotating shaft part 71 by the rotating mechanism 32.

[0047] The aforementioned rotating mechanism 32 can use existing rotary motor-pulley drive assembly or rotary motor-gear drive assembly, etc., and its output end is connected to the clamping mechanism 31 by means of screwing or welding.

[0048] See Figure 2 , Figure 3 and Figure 4 As shown, Figure 3 This is a partial structural diagram of the polishing wheel and the rotating clamping device in the embodiment. Figure 4 This is a perspective view of the rotating clamping device in one embodiment. In one implementation of the clamping mechanism 31, the clamping mechanism 31 includes a clamping drive member 311 and two clamping arms 312. A clamping space 313 is formed between the two clamping arms 312, which is used to clamp the rotating shaft part 71. The clamping drive member 311 is eccentrically connected to the output end of the rotating mechanism 32 by means of screwing or welding, and is drively connected to the two clamping arms 312. The clamping drive member 311 is used to drive the two clamping arms 312 to move closer or further apart, so as to reduce or expand the clamping space 313. Thus, when the clamping drive member 311 drives the two clamping arms 312 to move closer together, the clamping space 313 is reduced, and the rotating shaft part 71 is clamped in the clamping space 313. Conversely, when the clamping drive member 311 drives the two clamping arms 312 to move further apart, the clamping space 313 is expanded, and the rotating shaft part 71 is released, so as to replace the next eccentric shaft part 7 to be polished.

[0049] The aforementioned clamping drive unit 311 can use an existing gripper cylinder to drive the two gripping arms 312 to move closer or further apart, or it can use a linear displacement drive mechanism such as a telescopic pole to drive the two gripping arms 312 to move closer or further apart. The output end of the clamping drive unit 311 is connected to the two gripping arms 312 by means of screwing or welding. The latter embodiment makes it easier to control the size of the clamping space 313 to accommodate clamping eccentric shaft parts 7 of different specifications.

[0050] See Figure 3 and Figure 4As shown, based on the above embodiment, the two clamping arms 312 are symmetrically distributed. Each of the two clamping arms 312 has an arc-shaped or V-shaped clamping recess 3121 on its opposite side. The aforementioned clamping space 313 is formed between the two clamping recesses 3121. Thus, when clamping eccentric shaft parts 7 of different specifications, the clamping mechanism 31 can restrict the position of the rotating shaft part 71 in the clamping space 313 through the clamping recess 3121, so that the axis of the rotating shaft part 71 of different specifications of eccentric shaft parts 7 is located on the same straight line, thereby realizing that the eccentric shaft parts 7 of different specifications rotate around the same straight line under the drive of the rotating mechanism 32. In this way, the radial moving device 4 only needs to control the displacement of the eccentric shaft part 72 relative to the polishing wheel 2 in the radial direction according to the displacement of the eccentric shaft part 72 off the axis of the rotating shaft part 71 in the polishing wheel 2, so that the outer peripheral wall of the eccentric shaft part 72 is always in contact with the wheel surface 22 of the polishing wheel 2, effectively ensuring the polishing quality of the eccentric shaft part 72 of different specifications of eccentric shaft parts 7 by the cam polishing machine.

[0051] See Figure 1 and Figure 2 As shown, based on any of the above embodiments, there are two rotary clamping devices 3, and the two rotary clamping devices 3 are connected to the same radial moving device 4. The two rotary clamping devices 3 are symmetrically distributed relative to the axis of the polishing wheel 2. It can be seen that this cam polishing machine only requires one radial moving device 4 to simultaneously adjust the relative position of the eccentric shaft portion 72 of two identical eccentric shaft parts 7 with the polishing wheel 2, greatly saving driving costs. Thus, this cam polishing machine can simultaneously polish the eccentric shaft portion 72 of two identical eccentric shaft parts 7, thereby greatly improving the production efficiency of the eccentric shaft parts 7.

[0052] See Figure 1As shown, based on any of the above embodiments, the cam polishing machine further includes an axial moving device (not shown in the figure). The axial moving device is provided on the output end of the radial moving device 4 by means of screwing or welding, and the output end of the axial moving device is connected to the rotary clamping device 3 by means of screwing or welding. The axial moving device is used to drive the rotary clamping device 3 to move relative to the polishing wheel 2 along the axial direction of the polishing wheel 2, so that the eccentric shaft part 7 moves along the axial direction of the polishing wheel 2. Thus, if the shaft length of the eccentric shaft part 72 is greater than the width of the wheel surface 22 of the polishing wheel 2, causing the polishing wheel 2 to be unable to polish the entire outer peripheral wall of the eccentric shaft part 72, the eccentric shaft part 72 can be polished in segments. Specifically, the eccentric shaft 72 can be divided into several segments axially. An axial movement device drives the rotating clamping device 3 to move relative to the polishing wheel 2 along its axial direction, adjusting the relative position of the eccentric shaft 72 and the polishing wheel 2. This ensures that the innermost or outermost segment of the eccentric shaft 72 contacts the wheel surface 22 of the polishing wheel 2 for polishing. After polishing, the axial movement device again moves the eccentric shaft 72 axially relative to the polishing wheel 2, allowing the next segment of the eccentric shaft 72 to contact the polishing wheel 2 for polishing. This process is repeated continuously to polish each segment of the eccentric shaft 72 sequentially. It can be seen that this cam polishing machine, through its axial movement device, can polish eccentric shafts 72 of different lengths, further improving the versatility and flexibility of the polishing machine and meeting market demands for polishing the eccentric shafts 72 of different specifications of eccentric shaft parts 7.

[0053] If the cam polishing machine does not include an axial movement device, the rotating mechanism 32 is directly mounted on the output end of the radial movement device 4 by means of screwing or welding; if the cam polishing machine includes an axial movement device, the rotating mechanism 32 is mounted on the output end of the axial movement device by means of screwing or welding.

[0054] Both the aforementioned axial movement device and radial movement device 4 can use linear displacement drive mechanisms such as servo motor-screw nut linear modules or linear motor linear modules, thus enabling precise control of the relative position between the rotary clamping device 3 and the polishing wheel 2.

[0055] See Figure 2 As shown, based on any of the above embodiments, the cam polishing machine further includes a position control device 6. The position control device 6 is mounted on the frame 1 and is used to control the relative position of the rotating clamping device 3 and the polishing wheel 2. In this way, the cam polishing machine can control the rotating clamping device 3 and the radial moving device 4 to work together through the position control device 6 to achieve automatic polishing of the eccentric shaft portion 72 of eccentric shaft parts 7 of different specifications.

[0056] The aforementioned position control device 6 can be composed of several existing photoelectric switches or position switches and other position detection elements 61 and an existing controller (not shown in the figure). The several position detection elements 61 can be installed near the movement path of the output end of the radial movement device 4 (e.g., ...). Figure 2 As shown, the controller can control the position of the output end of the radial moving device 4, thereby achieving precise dynamic control of the relative position of the rotary clamping device 3 and the polishing wheel 2 in the radial direction. If the cam polishing machine includes an axial moving device, several positioning detection elements 61 can also be installed near the moving path of the output end of the axial moving device. In this way, the controller can also achieve precise dynamic control of the relative position of the rotary clamping device 3 and the polishing wheel 2 in the axial direction.

[0057] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cam polishing machine, characterized in that, include: frame; A polishing wheel is mounted on the frame; A rotating clamping device is provided on one side of the polishing wheel and is used to clamp or release the rotating shaft part of the eccentric shaft part so that the eccentric shaft part of the eccentric shaft part is arranged parallel to the rotating shaft of the polishing wheel, and drives the eccentric shaft part to rotate around the axis of the rotating shaft part. A radial moving device is mounted on the frame and is connected to the rotary clamping device for transmission. The radial moving device is used to drive the rotary clamping device to move relative to the polishing wheel in any radial direction, so that the outer peripheral wall of the eccentric shaft contacts the wheel surface of the polishing wheel.

2. The cam polishing machine according to claim 1, characterized in that, The rotary clamping device includes a clamping mechanism and a rotating mechanism. The clamping mechanism is eccentrically connected to the output end of the rotating mechanism, and the radial moving device is drivenly connected to the rotating mechanism. The clamping mechanism is used to clamp or release the rotating shaft, and the rotating mechanism is used to drive the eccentric shaft part to rotate around the axis of the rotating shaft.

3. The cam polishing machine according to claim 2, characterized in that, The clamping mechanism includes: Two clamping arms, with a clamping space formed between the two clamping arms for clamping the rotating shaft portion; The clamping drive is eccentrically connected to the output end of the rotating mechanism and is drively connected to the two clamping arms. The clamping drive is used to drive the two clamping arms to move closer or further apart to reduce or expand the clamping space.

4. The cam polishing machine according to claim 3, characterized in that, The two clamping arms are arranged symmetrically to each other, and each of the two clamping arms has an arc-shaped or V-shaped clamping recess on its opposite side, forming the clamping space between the two clamping recesses.

5. The cam polishing machine according to any one of claims 1-4, characterized in that, The rotary clamping device is provided in two parts, and the two rotary clamping devices are connected to the same radial moving device. The two rotary clamping devices are arranged symmetrically with respect to the axis of the polishing wheel.

6. The cam polishing machine according to any one of claims 1-4, characterized in that, The cam polishing machine further includes an axial moving device, which is located at the output end of the radial moving device. The output end of the axial moving device is connected to the rotary clamping device. The axial moving device is used to drive the rotary clamping device to displace relative to the polishing wheel along the axial direction of the polishing wheel, so that the eccentric shaft part moves along the axial direction of the polishing wheel.

7. The cam polishing machine according to any one of claims 1-4, characterized in that, The cam polishing machine also includes a position control device, which is mounted on the frame and used to control the relative position of the rotating clamping device and the polishing wheel.

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