Abrasive sheet cutting apparatus

Abstract

The application relates to a grinding sheet cutting device, which comprises a first seat body provided with a bearing surface for placing a grinding sheet, the bearing surface is provided with a circular window; a movable piece, the cross-sectional shape of the movable piece is the same as that of the window, the movable piece can pass through the window; a driving assembly for driving the movable piece to pass through and get out of the window; wherein the outer periphery of one end of the movable piece and the inner periphery of the window cooperate to form a shearing structure to shear the grinding sheet on the bearing surface. According to the cutting device provided by the embodiment of the application, the outer periphery of the movable piece and the inner periphery of the window can cooperate to form a shearing structure, the shearing structure can shear the grinding sheet placed on the bearing surface to a certain size, the size of the small grinding sheet after shearing can be uniform, the white body rework defect can be effectively avoided, the whole cutting process is completed under the driving of the driving assembly, the work load of the operator is effectively reduced, and the overall operation efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of abrasive disc processing technology, and more particularly to abrasive disc cutting equipment. Background Technology

[0002] In the body-in-white rework process in automobile production workshops, a grinder is needed to grind the body-in-white. During the grinding process, the grinding discs of the grinder are constantly worn down, and usually the outer periphery of the grinding disc wears more severely than the center. In order to reduce the cost of production consumables, the outer periphery of the grinding disc that is not fully used is manually cut off, and then the smaller grinding disc is reinstalled. However, the efficiency of manually cutting the grinding disc is relatively low, the workload of the workers is relatively large, and the size of the small grinding disc after manual cutting is also inconsistent, which can easily lead to poor body-in-white rework. Utility Model Content

[0003] The purpose of this application is to provide a grinding disc cutting device that can easily cut grinding discs and produce grinding discs with more uniform dimensions, thereby effectively solving the shortcomings of the prior art.

[0004] Therefore, embodiments of this application provide a grinding disc cutting device, including:

[0005] The first body is provided with a bearing surface for placing a grinding disc, and the bearing surface is provided with a circular window;

[0006] The movable component has the same cross-sectional shape as the window, and the movable component can pass through the window;

[0007] A driving component used to drive moving parts through and out of the window;

[0008] The outer periphery of one end of the movable component and the inner periphery of the window cooperate to form a shearing structure to shear the grinding disc on the bearing surface.

[0009] In some possible implementations, the first seat is provided with a through hole that extends from the window to the other side to penetrate the first seat, and the movable member is columnar and can move through the through hole.

[0010] In some possible implementations, the first seat is provided with a receiving groove, and the bearing surface is located at the bottom of the receiving groove.

[0011] In some possible implementations, a second seat is also included, which can abut against the bearing surface of the first seat, and the second seat is provided with a through hole for the moving part to pass through.

[0012] In some possible implementations, the second seat has a protrusion on the side facing the first seat, the protrusion being movable into the receiving groove.

[0013] In some possible implementations, the first seat, the second seat, and the movable member are arranged vertically from bottom to top.

[0014] In some possible implementations, a third seat and a support frame are also included, with the movable component disposed on the third seat and the drive assembly disposed on the support frame.

[0015] In some possible implementations, the first seat is provided with a first guide rod and a second guide rod, the second seat is provided with a third guide rod, the second seat can move vertically along the first guide rod and the second guide rod, and the third seat can move vertically along the first guide rod and the third guide rod.

[0016] In some possible implementations, a first spring is provided between the first seat and the second seat, and a second spring is provided between the second seat and the third seat.

[0017] In some possible implementations, the end face of the movable member that mates with the window is provided with a recessed groove that extends to the outer periphery of that end face of the movable member.

[0018] According to the cutting device provided in the embodiments of this application, the outer periphery of the movable part and the inner periphery of the window cooperate to form a cutting structure. This cutting structure can cut the grinding disc placed on the bearing surface to a certain size. After cutting, the size of the small grinding disc can be uniform, which can effectively avoid the defective rework of the body-in-white. The entire cutting process is completed under the drive of the drive component, which effectively reduces the workload of the operator and helps to improve the overall work efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure provided for an embodiment of this application;

[0020] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] like Figure 1 , Figure 2 As shown in the illustration, this application provides a grinding disc cutting device, applied in an automobile production workshop. Preferably, it performs a grinding disc cutting process. In the rework process of the body-in-white, a grinder is used to grind the body-in-white. The grinding discs of the grinder are constantly worn down. To reduce production costs, the workshop often re-cuts the worn grinding discs for continued use. This is because the wear of the grinding disc usually occurs on the outer periphery, while the wear on the center is relatively minor. The outer periphery of the grinding disc can be manually cut off and then reinstalled into the grinder for use. Currently, manual cutting of polishing discs has certain drawbacks. On the one hand, manual cutting is inefficient and labor-intensive. On the other hand, the size control during manual cutting is not precise enough, resulting in inconsistent sizes of the small polishing discs after cutting. When polishing discs of different sizes are installed on the polisher, the polisher needs to be adjusted repeatedly, which can easily lead to polishing defects in the body-in-white and cause poor rework of the body-in-white. The polishing disc cutting equipment provided in this application aims to improve the convenience of polishing disc cutting and ensure that the size of the small polishing discs after recutting is uniform.

[0023] The abrasive disc cutting device includes a first base 100, a movable component 301, and a drive assembly 40. The first base 100 is provided with a bearing surface 111 for placing the abrasive disc to be cut. A circular window is provided at the bearing surface 111, which is formed within the area of ​​the bearing surface 111 on the first base 100. The cross-sectional shape of the movable component 301 is the same as that of the window, and the cross-sectional shape of the movable component 301 is also circular. The movable component 301 can pass through the window. It should be noted that the movable component 301 has a circular cross-sectional structure. Taking the radial and axial directions of the movable component 301, the movable component 301 can pass through the window along the axial direction. The outer periphery of one end of the movable component 301 and the inner periphery of the window can cooperate to form a cutting structure. The cutting structure can complete the cutting action, thereby cutting the abrasive disc on the bearing surface 111.

[0024] In this embodiment, the grinding disc is cut under the drive of the drive component 40, which is highly efficient and can effectively reduce the workload of the operators. Moreover, according to the requirements, the first seat 100 with the corresponding size window and the movable part 301 are made. The movable part 301 and the window cooperate to cut the grinding disc. The cut size is uniform, which is conducive to improving the process quality of the body-in-white rework.

[0025] Preferably, a through hole 101 is provided on the first seat 100. The through hole 101 extends from the window to the other side and penetrates the first seat 100, so that the through hole 101 penetrates the first seat 100 as a whole. The movable member 301 has a cylindrical structure, and one end of the movable member 301 can extend into and penetrate the through hole 101 from one side of the window.

[0026] In this embodiment, the driving component 40 can be a hydraulic cylinder. The hydraulic cylinder drives the movable part 301 to move, placing the grinding disc to be cut flat on the bearing surface 111 and aligning the center of the grinding disc with the center of the window. Then, driven by the driving component 40, one end of the movable part 301 moves towards the window along its own axis until the grinding disc is cut. The central part of the cut grinding disc is discharged through the other end of the through hole 101. Then the movable part 301 returns to continue cutting the next grinding disc.

[0027] In a preferred embodiment, a receiving groove 110 is provided on the first base 100, and a bearing surface 111 is provided at the bottom of the receiving groove 110. In this embodiment, the bottom wall of the receiving groove 110 is configured as the bearing surface 111. The receiving groove 110 can be circular. The receiving groove 110 and the window are concentrically arranged, and the outer peripheral wall size of the receiving groove 110 is the same as the size of the grinding disc to be cut. In this way, when the grinding disc is placed in the receiving groove 110, the grinding disc and the window can be concentrically aligned, making positioning more convenient and further improving the cutting efficiency of the grinding disc.

[0028] In some embodiments, the grinding disc cutting device further includes a second base 200, which can abut against the bearing surface 111 of the first base 100. A through hole 201 is provided on the second base 200, which passes through the second base 200 and allows the movable member 301 to pass through axially. The second base 200 plays a role in pressing and fixing the grinding disc. When the movable member 301 applies pressure to the grinding disc for cutting, the grinding disc can maintain a stable state, which is conducive to the smooth cutting process.

[0029] More preferably, a protrusion 210 is provided on the side of the second seat 200 facing the first seat 100. The protrusion 210 can extend into the receiving groove 110. In this embodiment, the protrusion 210 protrudes from the second seat 200. The outer peripheral dimensions and shape of the protrusion 210 are the same as those of the receiving groove 110. To be precise, the outer peripheral shape of the protrusion 210 is the same as that of the receiving groove 110. The outer peripheral dimension of the protrusion 210 is slightly smaller than that of the receiving groove 110, so that the protrusion 210 can enter the receiving groove 110 and press the grinding disc placed in the receiving groove 110. After the protrusion 210 extends into the receiving groove 110, it is also coaxially aligned through the hole 101 and the through hole 201.

[0030] More preferably, the first base 100, the second base 200, and the movable member 301 are arranged vertically from bottom to top. The cross-sections of the through hole 101, the through hole 201, and the movable member 301 are all circular. The axis of the movable member 301 is vertically oriented. The axis of the through hole 101 on the first base 100 is also vertically oriented. The axis of the through hole 201 on the second base 200 is also vertically oriented. Furthermore, the axis of the movable member 301, the axis of the through hole 101, and the axis of the through hole 201 are all on a vertical line.

[0031] In this embodiment, the grinding disc cutting device further includes a third base 300 and a support frame 50. A movable part 301 is disposed on the third base 300, with its top end connected to the bottom of the third base 300. A drive assembly 40 is disposed on the support frame 50. A first guide rod 601 and a second guide rod 602 are vertically disposed on the first base 100, and a third guide rod 603 is vertically disposed on the second base 200. The second base 200 can move vertically along the first guide rod 601 and the second guide rod 602, and the third base 300 can move vertically along the first guide rod 601 and the third guide rod 603. The first guide rod 601 and the second guide rod 602 cooperate to restrict the reciprocating movement of the second base 200 in the vertical direction, and the first guide rod 601 and the third guide rod 603 cooperate to restrict the reciprocating movement of the third base 300 in the vertical direction.

[0032] In this embodiment, the bottom of the first guide rod 601 is connected to the first base 100, the bottom of the second guide rod 602 is connected to the first base 100, and the bottom of the third guide rod 603 is connected to the second base 200. One side of the second base 200 can slide up and down along the first guide rod 601, and the other side of the second base 200 can slide up and down along the second guide rod 602. One side of the third base 300 can slide up and down along the first guide rod 601, and the other side of the third base 300 can slide up and down along the third guide rod 603.

[0033] More preferably, a first spring 701 is provided between the first seat 100 and the second seat 200, and a first spring 702 is provided between the second seat 200 and the third seat 300. The first spring 701 can be sleeved on the second guide rod 602, with one end of the first spring 701 abutting against the first seat 100 and the other end abutting against the second seat 200. The first spring 702 can be sleeved on the third guide rod 603, with one end of the first spring 702 abutting against the second seat 200. The other end of 2 rests against the third seat 300. The drive component 40 can be a hydraulic cylinder. One end of the hydraulic cylinder is connected to the support frame 50. When the hydraulic cylinder extends, it can press the third seat 300 downward. In this embodiment, the support frame 50 can be a structure that encloses the upper, lower and left, right sides. The support frame 50 includes two side plates, a top plate, and a bottom plate, which facilitates the overall movement of the equipment. The first seat 100 is set on the bottom plate. A notch is set on the bottom plate. The notch is aligned with the through hole 101 of the first seat 100 to facilitate the outward discharge of the cut small grinding discs.

[0034] In this embodiment, the elastic force of the first spring 701 and the first spring 702 can achieve the following state: In the initial state, both the first spring 701 and the first spring 702 are in a compressed state, the second seat 200 is suspended above the first seat 100, and there is a sufficient gap between the first seat 100 and the second seat 200 so that the grinding disc to be cut can be placed in the receiving groove 110. The third seat 300 is suspended above the second seat 200, the movable part 301 is outside the through hole 201, the driving component 40 is a hydraulic cylinder, one end of the hydraulic cylinder is connected to the support frame 50, and the other end of the hydraulic cylinder can abut against the top of the third seat 300. When the hydraulic cylinder extends, the third seat 300 moves downward. Under the combined elastic force of the first spring 701 and the first spring 702, the second seat 200 also moves downward. The second seat 200 moves downward, and the protrusion 210 of the second seat 200 first enters the receiving groove 110 to press down the grinding disc in the receiving groove 110. Then the hydraulic cylinder continues to extend, and the third seat 300 continues to move downward, causing the movable part 301 to pass downward through the through hole 201. The bottom end of the movable part 301 contacts the grinding disc. Then the hydraulic cylinder continues to extend, and the bottom end of the movable part 301 cooperates with the window to cut the grinding disc. The cut small grinding disc falls downward out of the through hole 101. Then the hydraulic cylinder retracts, and under the elastic force of the first spring 701 and the first spring 702, the second seat 200 and the third seat 300 return to their initial positions, and the next cutting process can continue. In this embodiment, the hydraulic cylinder and the third seat 300 can also be connected together, and the third seat 300 can be pressed or pulled back by the hydraulic cylinder.

[0035] More preferably, the end face of the movable member 301 that mates with the window is provided with a recessed groove 3011. The groove 3011 extends to the outer periphery of the end face of the movable member 301, making the end face of the movable member 301 recessed and the outer periphery of the end face of the movable member 301 forming a sharper acute angle. This makes it faster to cut and polish the disc when mates with the window, and helps to improve the quality of the cut line after cutting.

[0036] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0037] It should be readily understood that “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest manner, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on something” but also “on something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0038] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A grinding disc cutting device, characterized in that, include: The first body is provided with a bearing surface for placing a grinding disc, and the bearing surface is provided with a circular window; The movable component has the same cross-sectional shape as the window, and the movable component can pass through the window; A driving component used to drive moving parts through and out of the window; The outer periphery of one end of the movable component and the inner periphery of the window cooperate to form a shearing structure to shear the grinding disc on the bearing surface.

2. The grinding disc cutting device according to claim 1, characterized in that: The first seat is provided with a through hole, which extends from the window to the other side to penetrate the first seat. The movable member is columnar and can move through the through hole.

3. The grinding disc cutting device according to claim 2, characterized in that: The first seat is provided with a receiving groove, and the bearing surface is located at the bottom of the receiving groove.

4. The grinding disc cutting device according to claim 3, characterized in that: It also includes a second seat, which can abut against the bearing surface of the first seat, and the second seat is provided with a through hole for the moving part to pass through.

5. The grinding disc cutting device according to claim 4, characterized in that: The second seat has a protrusion on the side facing the first seat, and the protrusion can extend into the receiving groove.

6. The grinding disc cutting device according to claim 2, characterized in that: The first base, the second base, and the movable component are arranged vertically from bottom to top.

7. The grinding disc cutting device according to claim 6, characterized in that: It also includes a third seat and a support frame, with the movable component disposed on the third seat and the drive assembly disposed on the support frame.

8. The grinding disc cutting device according to claim 6, characterized in that: The first seat is provided with a first guide rod and a second guide rod, the second seat is provided with a third guide rod, the second seat can move vertically along the first guide rod and the second guide rod, and the third seat can move vertically along the first guide rod and the third guide rod.

9. The grinding disc cutting device according to claim 8, characterized in that: A first spring is provided between the first seat and the second seat, and a second spring is provided between the second seat and the third seat.

10. The grinding disc cutting device according to claim 1, characterized in that: The end face of the movable part that mates with the window is provided with a recessed groove, which extends to the outer periphery of the end face of the movable part.

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