Anti-jamming handheld grinding and polishing equipment

Abstract

Anti-jamming handheld grinding and polishing equipment is composed of a device body and a clamping assembly, a horizontal displacement output end and a telescopic displacement output end are arranged at the front end of the device body, the clamping assembly comprises a grinding shaft, the lower end of the grinding shaft is connected with the horizontal displacement output end, and the front end of the grinding shaft is sleeved with a grinding shaft sleeve; the end, away from the polishing shaft sleeve, of the connecting piece is connected with the telescopic displacement output end. According to the technical scheme, the connecting piece is directly connected with the outer side of the shaft sleeve, the shaft sleeve is driven to move back and forth from the outer side through the connecting piece, installation of the connecting piece and the shaft sleeve in the design is not limited by space any more, it can be guaranteed that the movement directions of the shaft sleeve and the connecting piece are consistent, and the clamping-preventing handheld grinding and polishing equipment is convenient to use. And meanwhile, the grinding head is installed on the shaft sleeve, and disassembly and assembly are more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding and polishing, in particular to an anti-stuttering handheld grinding and polishing device. Background Art

[0002] Polishing is a very important step in the mold making process. With the increasing application of industrial products, the requirements for the appearance quality of industrial products are getting higher and higher. Correspondingly, the polishing quality of the mold cavity surface used to produce industrial products must also be improved accordingly. The processing of the mold surface mainly adopts automated processing. Due to the limitations of the current technical level, some knife marks or hardened layers will remain on the mold surface during processing. After automated processing, the mold cavity surface must be ground and polished to finally obtain the required position accuracy and surface roughness.

[0003] A new type of handheld grinding and polishing device disclosed in Chinese patent announcement number CN217800856U includes a grinding shaft, the front end of the grinding shaft is connected to a grinding head, the outer sleeve of the grinding shaft is provided with a shaft sleeve that can slide back and forth, and the rear end of the shaft sleeve is connected to a left and right swing mechanism; a front and back motion mechanism that can move the grinding shaft horizontally back and forth is arranged above the grinding shaft; a connecting rod is arranged between the front and back motion mechanism and the grinding shaft, and the connecting rod is Z-shaped and its bending part is located below the front and back motion mechanism.

[0004] The utility model realizes horizontal and front-to-back bidirectional grinding operations, but because the connecting parts and the grinding shaft are restricted by the external sleeve, only end-point connection can be adopted. During high-speed grinding operations, the grinding shaft will be subjected to unbalanced force, which can easily lead to increased squeezing between the grinding shaft and the side wall of the sleeve, and even cause jamming. In addition, the end-point connection method has higher requirements on the manufacturing materials and connection process to ensure the strength of the connection, which increases the production cost.

[0005] Therefore, in view of the deficiencies in the prior art, the utility model designs an anti-stuck handheld grinding and polishing device to solve the above problems.

[0006] It should be noted that the above introduction to the technical background is only for the convenience of clearly and completely explaining the technical solution of the utility model and facilitating the understanding of those skilled in the art. It cannot be considered that the above contents are well known to those skilled in the art simply because they are explained in the background technology of the utility model. Utility Model Content

[0007] In order to overcome the deficiencies in the above-mentioned prior art, the purpose of the utility model is to provide an anti-stuck handheld grinding and polishing device, which solves the problem of jamming of connecting parts during high-speed grinding by changing the connection method.

[0008] In order to achieve the above-mentioned purpose and other related purposes, the technical solution provided by the utility model is to provide an anti-jamming handheld grinding and polishing device, which consists of two parts: a device main body and a clamping assembly, wherein the front end of the device main body is provided with a horizontal displacement output end and a telescopic displacement output end, the clamping assembly includes a grinding shaft, the lower end of the grinding shaft is connected to the horizontal displacement output end, the front end sleeve of the grinding shaft is provided with a grinding shaft sleeve, and the side of the grinding shaft sleeve is provided with a connecting piece, and the end of the connecting piece away from the grinding shaft sleeve is connected to the telescopic displacement output end.

[0009] The preferred technical solution is: the grinding shaft includes a mounting seat for connecting to the horizontal displacement output end, a guide shaft is connected to the front end of the mounting seat, and the outer periphery of the guide shaft is slidably connected to the inner wall of the grinding sleeve.

[0010] The preferred technical solution is that the outer diameter of the guide shaft is the same as the inner diameter of the grinding sleeve.

[0011] The preferred technical solution is that the connecting piece is a Z-shaped structure.

[0012] The preferred technical solution is: a throat clamp and a mounting block are respectively provided at both ends of the connecting piece, the throat clamp is connected to the outer periphery of the polishing sleeve, and the mounting block is connected to the telescopic displacement output end.

[0013] The preferred technical solution is: a clamping structure for mounting a grinding head is provided at the front end of the grinding sleeve.

[0014] The preferred technical solution is: the clamping structure includes a clamping groove, and a locking screw is provided on one side of the clamping groove.

[0015] Due to the application of the above-mentioned technical scheme, the utility model provides an anti-jamming handheld grinding and polishing equipment, in which the connecting piece is directly connected to the outside of the sleeve, and the sleeve is driven to move back and forth from the outside through the connecting piece. In this design, the installation of the connecting piece and the sleeve is no longer restricted by space, which can ensure that the movement directions of the sleeve and the connecting piece are consistent, avoid side squeezing of the sleeve and the guide shaft, and reduce the possibility of movement jamming. At the same time, the grinding head is installed on the sleeve, which is more convenient for disassembly and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of an anti-stuck handheld grinding and polishing device of the utility model;

[0017] Figure 2 It is an exploded view of the clamping assembly in the present invention.

[0018] In the above drawings, 1. device body; 11. horizontal displacement output end; 12. telescopic displacement output end; 2. clamping assembly; 21. grinding shaft; 21a. mounting seat; 21b. guide shaft; 22. grinding sleeve; 221. clamping structure; 221a. clamping groove; 221b. locking screw; 23. connecting piece; 23a. throat clamp; 23b. mounting block; 3. grinding head. DETAILED DESCRIPTION

[0019] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0020] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third" and the like are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance. Terms such as "horizontal", "vertical", and "overhanging" do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0021] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] like Figure 1 As shown, the utility model discloses an anti-stuck handheld grinding and polishing device, including a device body 1 and a clamping assembly 2. The main components of the utility model are described in detail below:

[0023] like Figure 1 and Figure 2As shown, a horizontal displacement output terminal 11 and a telescopic displacement output terminal 12 are provided at the front end of the device body 1, and the horizontal displacement output terminal 11 and the telescopic displacement output terminal 12 drive the clamping assembly 2 and the grinding head thereon to perform horizontal and telescopic movement.

[0024] like Figure 1 and Figure 2 As shown, the clamping assembly 2 includes a grinding shaft 21, and the grinding shaft 21 includes a mounting seat 21a. The mounting seat 21a is connected to the horizontal displacement output end 11 by screws. A guide shaft 21b is provided at the front end of the mounting seat 21a. The outer periphery of the guide shaft 21b is slidably connected to the inner wall of the grinding sleeve 22, and the outer diameter of the guide shaft 21b is the same as the inner hole diameter of the grinding sleeve 22.

[0025] like Figure 1 and Figure 2 As shown, the grinding shaft 21 includes a mounting seat 21a for connecting to the horizontal displacement output end 11, a guide shaft 21b is provided at the front end of the mounting seat 21a, the outer periphery of the guide shaft 21b is slidably connected to the grinding sleeve 22, and the outer diameter of the guide shaft 21b is the same as the inner hole diameter of the grinding sleeve 22.

[0026] like Figure 1 and Figure 2 As shown, the front end of the grinding sleeve 22 is provided with a clamping structure 221 for installing the grinding head 3. The clamping structure 221 includes a clamping groove 221a. A locking screw 221b is provided on one side of the clamping groove 221a to facilitate disassembly, assembly and replacement of the grinding head 3.

[0027] like Figure 1 and Figure 2 As shown, the connecting member 23 is a Z-shaped structure arranged on the side of the grinding sleeve 22, and a throat clamp 23a and a mounting block 23b are respectively provided at both ends of the connecting member 23. The throat clamp 23a is connected to the outer periphery of the grinding sleeve 22, and the mounting block 23b is connected to the telescopic displacement output end 12. It should be noted that the above structure is only exemplary and not restrictive. In this embodiment, the connecting member 23 is a Z-shaped structure, but in other embodiments, the connecting member 23 may also be an L-shaped structure or an arc structure; in this embodiment, a throat clamp 23a is provided on the connecting member 23, but in other embodiments, the connecting member 23 may not be provided with a throat clamp 23a and is directly connected to the grinding sleeve 22 through other fixing methods.

[0028] refer to Figure 1 and Figure 2It can be known that during operation, the horizontal displacement output end 11 drives the grinding shaft 21 to move horizontally, and then drives the grinding sleeve 22 and the grinding head 3 connected to the outside of the grinding shaft 21 to move horizontally, and the connecting piece 23 on the outside of the grinding sleeve 22 is driven by the telescopic displacement output end 12, and moves forward and backward together with the grinding sleeve 22. In this process, since the grinding sleeve 22 and the connecting piece 23 are connected from the outside, the connection is more stable, which reduces the mutual extrusion between the grinding sleeve 22 and the grinding shaft 21 during the movement process, and reduces the possibility of jamming during movement.

[0029] To sum up, the utility model discloses an anti-jamming handheld grinding and polishing equipment, which changes the movement mode of the guide shaft and the sleeve and increases the installation space of the connecting parts to make the connection more stable, reduce the sliding friction between the guide shaft and the sleeve during movement, and avoid jamming during high-speed operation. The structure is simple and ingenious, and it is easy to promote and use.

[0030] The above embodiment provided by the utility model is only an example of the principle and effect of the utility model, and is not used to limit the utility model. Anyone familiar with this technology can modify or change the above embodiment without violating the spirit and scope of the utility model. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed by the utility model should still be covered by the claims of the utility model.

Claims

1. An anti-stuttering handheld grinding and polishing device, characterized in that: The invention comprises a device body (1) and a clamping assembly (2), wherein the front end of the device body (1) is provided with a horizontal displacement output end (11) and a telescopic displacement output end (12), and the clamping assembly (2) comprises a grinding shaft (21), the lower end of the grinding shaft (21) is connected to the horizontal displacement output end (11), the front end of the grinding shaft (21) is sleeved with a grinding shaft sleeve (22), the side of the grinding shaft sleeve (22) is provided with a connecting piece (23), and the connecting piece (23) is connected to the telescopic displacement output end (12).

2. The anti-stuttering handheld grinding and polishing device according to claim 1, characterized in that: The grinding shaft (21) comprises a mounting seat (21a) for connecting to the horizontal displacement output end (11); a guide shaft (21b) is provided at the front end of the mounting seat (21a); ​​and the outer periphery of the guide shaft (21b) is slidably connected to the grinding shaft sleeve (22).

3. The anti-stuttering handheld grinding and polishing device according to claim 2, characterized in that: The outer diameter of the guide shaft (21b) is the same as the inner hole diameter of the grinding sleeve (22).

4. The anti-stuttering handheld grinding and polishing device according to claim 1, characterized in that: The connecting piece (23) is a Z-shaped structure.

5. The anti-stuttering handheld grinding and polishing device according to claim 4, characterized in that: A throat hoop (23a) and a mounting block (23b) are respectively provided at both ends of the connecting member (23); the throat hoop (23a) is connected to the outer periphery of the grinding sleeve (22), and the mounting block (23b) is connected to the telescopic displacement output end (12).

6. The anti-stuttering handheld grinding and polishing device according to claim 1, characterized in that: The front end of the grinding sleeve (22) is provided with a clamping structure (221) for mounting the grinding head (3).

7. The anti-stuttering handheld grinding and polishing device according to claim 6, characterized in that: The clamping structure (221) comprises a clamping groove (221a), and a locking screw (221b) is provided on one side of the clamping groove (221a).

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