A grinding clamping device based on rotational speed difference and its usage method

Abstract

This invention relates to the field of clamping and grinding equipment technology, specifically a clamping device for grinding based on a speed difference. It includes a cover workpiece A and a mounting base. A rotating shaft is rotatably mounted on the center of the mounting base, and a mounting plate is locked to the upper side of the rotating shaft. The cover workpiece A is rotatably positioned on the upper side of the mounting plate and can be rotatably placed on a supporting connecting assembly on the mounting plate. When one side of the cover workpiece A contacts the belt sander, it rotates rapidly with the sanding belt. A lifting and deceleration assembly on one side abuts against the other side of the cover workpiece A, slowing its rotation. Thus, the rotation of the cover workpiece A is relatively slower than the rotation of the sanding belt, creating a speed difference. Therefore, the cover workpiece A is simultaneously rotated and ground by the sanding belt, resulting in more uniform grinding and improved efficiency. Similarly, the sanding belt can also rotate and grind the side edges of the cover workpiece A, making it highly versatile.

Description

Technical Field

[0001] This invention relates to the field of clamping and grinding equipment technology, specifically to a clamping device for grinding based on rotational speed difference. Background Technology

[0002] Bathroom fixtures encompass many products, with shower heads being one of them. Shower heads are used to project water in small droplets or jets, making showering more convenient. Shower heads also include many accessories, such as brass shower heads. To achieve a good aesthetic effect, the surface of the shower head usually needs to be polished to make it brighter. Currently, the polishing of shower head components is mostly done manually, placing the component on a belt sander for polishing. This polishing method is prone to... Manual grinding is prone to deviations, resulting in poor grinding effect and efficiency. It is not recommended to grind manually. Alternatively, a robotic arm can be used to directly grip the workpiece and then polish it with a belt grinder. However, the belt grinder applies force directly to the surface of the workpiece, and the gripped workpiece cannot rotate, making it inconvenient to grind and polish the sides of the workpiece. Operation and control are inconvenient during grinding, and uneven grinding is also likely to occur. The use is relatively unstable. Therefore, it is necessary to propose a grinding clamping device based on the speed difference to be used in conjunction with the belt grinder. Summary of the Invention

[0003] In view of the shortcomings of the prior art, the purpose of this invention is to provide a grinding clamping device based on rotational speed difference to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution: a grinding clamping device based on rotational speed difference, comprising a faceplate workpiece A and a mounting base, wherein a rotating shaft is rotatably sleeved in the middle of the mounting base, and a mounting plate is locked to the upper side of the rotating shaft, the faceplate workpiece A is rotatably located on the upper side of the mounting plate, the mounting plate is provided with a tensioning connection component that can open and tightly adhere to the outer edge of the faceplate workpiece A, and a lifting and deceleration component that can abut against the upper surface of the faceplate workpiece A is provided on one side of the mounting base.

[0005] A further improvement is made to the lifting and deceleration assembly structure, which includes an L-shaped support plate, a lifting cylinder, and a pressure plate. The pressure plate is located on the upper side of the cover workpiece A and can be lifted and moved. Kraft paper is attached to the lower side of the pressure plate and is tightly attached to the upper surface of the cover workpiece A through the kraft paper. The pressure plate is installed laterally at the telescopic end of the lifting cylinder. The lifting cylinder is installed on the lower side of the L-shaped support plate. One side of the L-shaped support plate is fixedly connected to the mounting base.

[0006] A further improvement is that a vertical guide post is fixed on one side of the L-shaped support plate, and a vertical slider that can slide in cooperation with the vertical guide post is fixed on one side of the pressure plate.

[0007] A further improvement is that the tensioning connection assembly structure includes two push cylinders mounted in opposite directions on both sides of the bottom surface of the mounting plate and two clamping plates slidably connected in opposite directions to the upper side of the mounting plate. Each of the two push cylinders is equipped with a push connecting plate, and the two push connecting plates are respectively locked to the lower side of the two clamping plates.

[0008] A further improvement is that the mounting plate has two parallel transverse guide posts on its upper side, and the two clamping plates each have a transverse slider on their lower side that can slide and connect with the two transverse guide posts.

[0009] A further improvement is that: the two clamping plates are respectively locked to opposite sides of the racks, and a connecting gear is meshed between the two racks, so that the two racks are linked together, and the connecting gear is rotatably mounted on the upper side of the mounting plate.

[0010] A further improvement is that the end of the rotating shaft extends through and is located on the upper side of the mounting plate, the connecting gear is rotatably sleeved on the end of the rotating shaft, and the lower side of the cover workpiece A can be simultaneously sleeved on two clamping plates.

[0011] A further improvement is that a lifting push rod is installed on the mounting base on the lower side of the mounting plate, and the telescopic end of the lifting push rod is connected to a pin. A pin hole corresponding to the pin is provided on one side of the bottom surface of the mounting plate.

[0012] A method for using a grinding clamping device based on rotational speed difference: The faceplate workpiece A is rotated and placed on the supporting connecting component 4 on the upper side of the mounting plate 3. The supporting connecting component can hold the inner edge of the faceplate workpiece A to prevent it from falling off. Then, when the surface or side of the faceplate workpiece A comes into contact with the belt sander, the faceplate workpiece A can rotate rapidly with the sanding belt of the belt sander. The lifting and deceleration component 5 on one side can be used to decelerate the faceplate workpiece A. When the speed of the faceplate workpiece A decreases, the rotational speed of the sanding belt is constant. Since there is a rotational speed difference between the two, the high-speed rotation of the sanding belt can grind the rotating faceplate workpiece A.

[0013] By adopting the above-described technical solution, the present invention has the following advantages compared to the prior art:

[0014] This invention features a compact and ingenious structure. The cover workpiece A can be rotatably placed on the support and connecting assembly on the mounting plate. When one side of the cover workpiece A comes into contact with the belt sander, the cover workpiece A can rotate rapidly with the sander belt. The lifting and deceleration assembly on one side is used to hold the other side of the cover workpiece A, thus slowing down its rotation. In this way, the rotation of the cover workpiece A is relatively slower than the rotation of the sander belt, and there is a speed difference between the two. Therefore, the cover workpiece A is sanded by the sander belt while rotating, resulting in more uniform sanding and improved efficiency. Similarly, the sander belt can also rotate and sand the side edge of the cover workpiece A, making it highly versatile.

[0015] In addition, the set support connection component can support the inner edge of the cover workpiece A to prevent it from falling off. It has high control precision and stable use. Compared with the existing technology, it has positive and beneficial effects and significant progress. Attached Figure Description

[0016] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the present invention;

[0019] Figure 3 This is a side-view structural diagram of the present invention;

[0020] Figure 4 This is a schematic diagram of the structure of the tensioning connection assembly and the lifting and deceleration assembly of the present invention;

[0021] Figure 5 This is a side view of the structure of the present invention;

[0022] Figure 6 This is a schematic diagram of the connection structure between the rack and the connecting gear of the present invention;

[0023] In the diagram: faceplate workpiece A, mounting base 1, rotating shaft 2, mounting plate 3, hollow movable opening 31, horizontal guide post 32, pin hole 33, tensioning connection assembly 4, pushing cylinder 41, pushing connecting plate 42, clamping plate 43, rack 432, horizontal slider 433, ball bearing 434, lifting and deceleration assembly 5, L-shaped support plate 51, lifting cylinder 52, vertical guide post 53, pressure plate 54, kraft paperboard 55, vertical slider 56, connecting gear 6, lifting push rod 7, pin 71. Detailed Implementation

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] like Figure 1-6 As shown in the figure, the present invention provides a technical solution for a grinding clamping device based on rotational speed difference: it includes a faceplate workpiece A and a mounting base 1. A rotating shaft 2 is rotatably sleeved in the middle of the mounting base 1. A mounting plate 3 is locked to the upper side of the rotating shaft 2. The faceplate workpiece A rotates and is located on the upper side of the mounting plate 3. The mounting plate 3 is provided with a tensioning connection component 4 that can open and tightly adhere to the outer edge of the faceplate workpiece A. A lifting and deceleration component 5 is provided on one side of the mounting base 1 that can abut against the upper surface of the faceplate workpiece A. The lifting and deceleration component 5 mainly decelerates the rotating faceplate workpiece A.

[0026] The lifting and deceleration assembly 5 includes an L-shaped support plate 51, a lifting cylinder 52, and a pressure plate 54. The pressure plate 54 is located on the upper side of the cover workpiece A and can be lifted and moved. A kraft paperboard 55 is attached to the lower side of the pressure plate 54, and the kraft paperboard 55 is in close contact with the upper surface of the cover workpiece A, so as to generate a certain friction deceleration and cleaning effect. The pressure plate 54 is installed horizontally at the telescopic end of the lifting cylinder 52, so that the pressure plate 54 can be lifted and moved up and down. The lifting cylinder 52 is installed on the lower side of the L-shaped support plate 51, and one side of the L-shaped support plate 51 is fixedly connected to the mounting base 1.

[0027] In order for the pressure plate 54 to move up and down more stably, a vertical guide post 53 is fixed on one side of the L-shaped support plate 51, and a vertical slider 56 that can slide in cooperation with the vertical guide post 53 is fixed on one side of the pressure plate 54. The pressure plate 54 can move up and down stably on the vertical guide post 53 through the vertical slider 56.

[0028] The tensioning connection assembly 4 includes two opposing push cylinders 41 mounted on opposite sides of the bottom surface of the mounting plate 3 and two opposing slidably connected clamping plates 43 on the upper side of the mounting plate 3. Since the two clamping plates 43 move outward or inward synchronously, the push cylinders 41 need to face two different directions respectively. Both opposing push cylinders 41 are equipped with push connecting plates 42, and are locked to the lower side of the two clamping plates 43 respectively through the two push connecting plates 42, thereby pushing the two clamping plates 43 to move. The upper side of the mounting plate 3 is provided with two parallel transverse guide posts 32, and the lower side of the two clamping plates 43 is provided with transverse sliders 433 that can slide and connect with the two transverse guide posts 32. In this way, the clamping plates 43 can slide more stably on the guide posts 32 through the transverse sliders 433.

[0029] To improve the synchronous displacement accuracy of the clamping plates 43, the two clamping plates 43 are respectively locked to opposite sides of the racks 432, and the two racks 432 are meshed with a connecting gear 6, so that the two racks 432 move in tandem. Therefore, the two clamping plates 43 are synchronously displaced, and the connecting gear 6 is rotatably mounted on the upper side of the mounting plate 3. The end of the rotating shaft 2 extends through and is mounted on the upper side of the mounting plate 3. The connecting gear 6 is rotatably sleeved on the end of the rotating shaft 2, so that the lower side of the cover workpiece A can be simultaneously sleeved on the two clamping plates 43.

[0030] Furthermore, a lifting push rod 7 is installed on the mounting base 1 on the lower side of the mounting plate 3. The telescopic end of the lifting push rod 7 is connected to a pin 71. A pin hole 33 corresponding to the pin 71 is provided on one side of the bottom surface of the mounting plate 3. By the electric push rod of the lifting push rod 7, the pin 71 can be inserted into the pin hole 33 at the bottom of the mounting plate 3 through the lifting and lowering of the lifting push rod 7. In this way, the mounting plate 3 can be limited and rotated according to the usage requirements.

[0031] Furthermore, the mounting base 1 of the present invention is mounted on a multi-axis robotic arm, and one of the drive shafts of the multi-axis robotic arm is connected to the rotating shaft 2 to control the rotation of the rotating shaft 2. The multi-directional flexibility of the multi-axis robotic arm is used to control the displacement and rotation of the entire device, in conjunction with the sanding work of the sandbag of the belt sander.

[0032] For example, by rotating the cover workpiece A onto the support connection assembly 4 on the upper side of the mounting plate 3, specifically placing it on two clamping plates 43, it can rotate on the two clamping plates 43. Then, when the surface or side of the cover workpiece A comes into contact with the belt sander, the cover workpiece A can rotate rapidly with the sanding belt of the belt sander, and the lifting and deceleration assembly 5 on one side is used to hold the cover workpiece A. The lifting and deceleration assembly 5 mainly retracts downward through the lifting cylinder 52, causing the pressure plate 54 to move downward, and the kraft paperboard 55 attached to the lower side of the pressure plate 54 and the... When the cover workpiece A comes into contact, the force generated by the downward movement of the pressure plate 54 and the friction between the kraft paperboard 55 and the cover workpiece A can decelerate the cover workpiece A. When the cover workpiece A rotates, the kraft paperboard 55 helps to prevent the cover workpiece A from being scratched, and it can also achieve a certain polishing effect under high-speed rotation. When the speed of the cover workpiece A decreases, the rotation speed of the sanding belt is constant. There is a speed difference between the two. Therefore, the high-speed rotation of the sanding belt can polish the rotating cover workpiece A. This rotational polishing is more uniform and effective, which helps to improve work efficiency.

[0033] The working principle of the tensioning connection component 4: By pushing the cylinder 41 to push the displacement to both sides at the same time, the pushing plate 42 connected to the telescopic end of the pushing cylinder 41 can push the clamping plate 43 to move in the opposite direction to support the inner edge of the cover workpiece A, correct the position of the cover workpiece A, and at the same time tighten the mounting plate 3 to both sides to prevent the cover workpiece A from falling off when the multi-axis robotic arm moves or flips. When the cover workpiece A needs to be polished, the telescopic end of the pushing cylinder 41 needs to retract a little so that the diameter of the two pushing clamping plates 43 matches the inner diameter of the cover workpiece A. Therefore, the cover workpiece A can rotate on the two pushing clamping plates 43.

[0034] Based on the technical solution of the aforementioned tensioning connection component 4, in order to enable the two push clamping plates 43 to move synchronously, improve their control accuracy and stability, the two push clamping plates 43 are equipped with opposing racks 432. A connecting gear 6 meshes between the two racks 432, so that the two racks 432 can move in tandem under the action of the connecting gear 6, and perform reciprocating motion synchronously, resulting in higher accuracy. Furthermore, this arrangement allows for not only simultaneous pushing by the two push cylinders 41, but also alternating pushing by the two push cylinders 41, thereby enabling the two push clamping plates 43 to slide on the mounting plate 3, achieving the function of clamping or releasing the cover workpiece A.

[0035] It should be noted that the grinding clamping device based on rotational speed difference of the present invention mainly improves the above structure. The functions, components and structures not mentioned can be implemented by using the components and structures in the prior art that can achieve the corresponding functions.

[0036] The present invention has been described in detail above through specific embodiments, but these are not intended to limit the invention. Many modifications and improvements can be made by those skilled in the art without departing from the principles of the invention, and these should also be considered within the scope of protection of the present invention.

Claims

1. A grinding clamping device based on rotational speed difference, characterized in that: The device includes a face cover (A) and a mounting base (1). A rotating shaft (2) is rotatably sleeved in the middle of the mounting base (1). A mounting plate (3) is locked to the upper side of the rotating shaft (2). The face cover (A) is rotatably located on the upper side of the mounting plate (3). The mounting plate (3) is provided with a tensioning connection component (4) that can open and tightly adhere to the outer edge of the face cover (A). A lifting and deceleration component (5) that can abut against the upper surface of the face cover (A) is provided on one side of the mounting base (1). The lifting and deceleration assembly (5) includes an L-shaped support plate (51), a lifting cylinder (52), and a pressure plate (54). The pressure plate (54) is located on the upper side of the cover workpiece (A) and can be lifted and moved. Kraft paperboard (55) is attached to the lower side of the pressure plate (54) and is in close contact with the upper surface of the cover workpiece (A) through the kraft paperboard (55). The pressure plate (54) is installed horizontally at the telescopic end of the lifting cylinder (52). The lifting cylinder (52) is installed on the lower side of the L-shaped support plate (51). One side of the L-shaped support plate (51) is fixedly connected to the mounting base (1). The structure of the tensioning connection assembly (4) includes two push cylinders (41) installed in opposite directions on both sides of the bottom surface of the mounting plate (3) and two clamping plates (43) slidably connected in opposite directions on the upper side of the mounting plate (3). The two push cylinders (41) are each equipped with a push connecting plate (42), and are locked to the lower side of the two clamping plates (43) respectively through the two push connecting plates (42). The mounting plate (3) is provided with hollow movable openings (31) on the left and right sides respectively. The two push connecting plates (42) are inserted through the hollow movable openings (31) respectively and are locked to the lower side of the two clamping plates (43) respectively through screws.

2. The grinding clamping device based on rotational speed difference according to claim 1, characterized in that: A vertical guide post (53) is fixed on one side of the L-shaped support plate (51), and a vertical slider (56) that can slide in cooperation with the vertical guide post (53) is fixed on one side of the pressure plate (54).

3. The grinding clamping device based on rotational speed difference according to claim 1, characterized in that: The mounting plate (3) has two parallel horizontal guide posts (32) on its upper side, and the two clamping plates (43) have horizontal sliders (433) on their lower sides that can slide and connect with the two horizontal guide posts (32).

4. The grinding clamping device based on rotational speed difference according to claim 3, characterized in that: The two clamping plates (43) are respectively locked to the opposite sides of the racks (432), and the two racks (432) are meshed with a connecting gear (6), so that the two racks (432) are linked together. The connecting gear (6) is rotatably located on the upper side of the mounting plate (3).

5. A grinding clamping device based on rotational speed difference according to claim 4, characterized in that: The end of the rotating shaft (2) extends through and is located on the upper side of the mounting plate (3). The connecting gear (6) is rotated and sleeved on the end of the rotating shaft (2). The lower side of the cover workpiece (A) can be sleeved on the two clamping plates (43).

6. The grinding clamping device based on rotational speed difference according to claim 1, characterized in that: A lifting push rod (7) is installed on the mounting base (1) on the lower side of the mounting plate (3). The extension end of the lifting push rod (7) is connected to a pin (71). A pin hole (33) corresponding to the pin (71) is provided on one side of the bottom surface of the mounting plate (3).

7. A method of using a grinding clamping device based on a rotational speed difference according to any one of claims 1-6, characterized in that: By rotating the cover workpiece (A) onto the support connection assembly (4) on the upper side of the mounting plate (3), the support connection assembly can support the inner edge of the cover workpiece (A) to prevent it from falling off. Then, when the surface or side of the cover workpiece (A) comes into contact with the belt sander, the cover workpiece (A) can rotate rapidly with the sanding belt of the belt sander. The lifting and deceleration assembly (5) on one side can be used to decelerate the cover workpiece (A). When the speed of the cover workpiece (A) decreases, the rotation speed of the sanding belt is constant. The two have a speed difference, so the high-speed rotation of the sanding belt can grind the rotating cover workpiece (A).

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