Portable abrasive belt grinding and polishing machine

Abstract

The utility model discloses a portable abrasive belt grinding and polishing machine which comprises a machine head, a driving wheel, a driven wheel and an abrasive belt. The driving wheel and the driven wheel are connected to one end of the machine head, and the abrasive belt is arranged on the surface of the driving wheel and the surface of the driven wheel in a sleeving mode so that transmission connection can be formed between the driving wheel and the driven wheel. And the machine head drives the driving wheel to rotate. The portable abrasive belt grinding and polishing machine is reasonable in structural design, easy to operate and convenient to carry, the abrasive belt is driven to circularly move to rapidly and accurately grind a roughly-ground welding seam, the welding seam and peripheral protruding parts are ground and polished, the impurity part is rapidly removed, the grinding efficiency and the detection quality are greatly improved, and the labor intensity of workers is reduced. The problems of weld reinforcement polishing quality and polishing efficiency are solved, and the requirements of phased array standard energy industry standards for weld reinforcement polishing are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to a welding seam processing technical field especially relates to a portable abrasive belt grinding and polishing machine. BACKGROUND

[0002] Welding seam excess height is a common phenomenon in the welding process, and excessive welding seam excess height has numerous influences on subsequent detection and corrosion prevention work. In actual engineering, welding quality is also the most difficult to control. In the case of manual welding, welding seam excess height exceeding the range is a common phenomenon, and in most cases, it exceeds the specified value by several times. The corresponding abrasive belt of the portable grinding and polishing tool on site is relatively narrow, and direct polishing of the welding seam area needs to be polished multiple times, which is low in polishing efficiency.

[0003] In recent years, phased array detection technology has gradually been used instead, but during the use of phased array detection technology, the excess height of the welding seam needs to be polished. If a special polishing tool is not used, the polishing effect is unsatisfactory, and the base material is often damaged or the polishing effect cannot meet the detection requirements. Therefore, the portable fine grinding and polishing tool plays a crucial role in on-site engineering business and can accelerate the progress of the project.

[0004] Therefore, the utility model provides a portable abrasive belt grinding and polishing machine which is simple in structure, convenient to operate and good in grinding and polishing effect. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a portable abrasive belt grinding and polishing machine to solve the problems in the background art. To achieve the above object, the utility model provides the following technical scheme:

[0006] A portable abrasive belt grinding and polishing machine comprises a head, a driving wheel, a driven wheel and an abrasive belt. The driving wheel and the driven wheel are connected to one end of the head, the abrasive belt is sleeved on the surfaces of the driving wheel and the driven wheel to form a transmission connection between the driving wheel and the driven wheel, and the head drives the driving wheel to rotate.

[0007] Further, the portable abrasive belt grinding and polishing machine further comprises an extension support, one end of the extension support is fixedly connected to the head, and the driven wheel is arranged at the other end of the extension support.

[0008] Further, the extension support comprises a fixed part, an extension part and a spring. The extension part is insertedly matched with the fixed part, the spring is connected between the extension part and the fixed part, the fixed part is fixedly connected to the head, and the driven wheel is connected to the extension part.

[0009] Further, the fixing member is provided with a limiting slot, and the telescopic member is provided with a limiting block which is slidably connected in the limiting slot.

[0010] Further, the driving wheel and the driven wheel are respectively provided with mounting slots, and two ends of the spring are respectively mounted in the corresponding mounting slots.

[0011] Further, the portable abrasive belt grinding and polishing machine further comprises an abrasive belt bearing frame arranged between the driving wheel and the driven wheel, and the abrasive belt bearing frame is fixedly connected with the fixing member.

[0012] Further, the head is a speed-adjustable angle grinder head, and the driving wheel is fixedly connected with an output shaft of the head.

[0013] Further, the driving wheel is provided with a through hole.

[0014] Further, surfaces of the driving wheel and the driven wheel are provided with anti-skid layers.

[0015] Further, the anti-skid layers are anti-skid soft rubbers, and the anti-skid layers are arranged on the surfaces of the driving wheel and the driven wheel by means of adhesive fixing or rubber elasticity.

[0016] The portable abrasive belt grinding and polishing machine has the advantages that the portable abrasive belt grinding and polishing machine has reasonable structure design, simple operation and portability, the welding seam after rough grinding is rapidly and finely ground by driving the abrasive belt to circularly move, the welding seam and the protruding part around the welding seam are ground and polished, the impurity part is rapidly removed, the grinding efficiency and the detection quality are greatly improved, the problems of the grinding quality and the grinding efficiency of the welding seam excess height are solved, the requirements of the phased array standard energy industry standard on the welding seam excess height grinding are met, and the problems are solved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the drawings.

[0018] Fig. 1 It is a structural schematic diagram of the utility model.

[0019] Fig. 2 It is a perspective structural schematic diagram of the utility model.

[0020] Fig. 3 It is another perspective structural schematic diagram of the utility model.

[0021] It should be noted that the accompanying drawings are not necessarily drawn to scale, but are shown only in a schematic manner without affecting the reader's understanding. Detailed Implementation

[0022] 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.

[0023] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0024] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0025] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0026] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0027] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0028] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0029] like Figs. 1 to 3 As shown, a portable belt sander includes a head 1, a drive wheel 2, a driven wheel 3, and a sanding belt 4. The drive wheel 2 and the driven wheel 3 are connected to one end of the head 1. The sanding belt 4 is a circular sanding belt of a certain length with a width of 50mm. The total length of the sanding belt 4 is determined by the diameter and distance between the drive wheel 2 and the driven wheel 3. The sanding belt 4 is fitted onto the surfaces of the drive wheel 2 and the driven wheel 3, and the ends of the sanding belt 4 are connected to form a taut closed loop, so that a transmission connection is formed between the drive wheel 2 and the driven wheel 3. The head 1 drives the drive wheel 2 to rotate, thereby driving the sanding belt 4 to circulate between the drive wheel 2 and the driven wheel 3 to achieve the sanding function.

[0030] The portable belt sander of this embodiment has a reasonable structural design, is easy to operate and carry. It quickly and finely grinds the weld after rough grinding by driving the sanding belt to circulate. It grinds and polishes the weld and the surrounding protruding parts, quickly removes impurities, greatly improves grinding efficiency and inspection quality, solves the problem of grinding quality and efficiency of weld excess height, and meets the requirements of Part 15 of the phased array standard energy industry standard NB / T47013.15-2021 for grinding weld excess height.

[0031] In one embodiment, see Fig. 2 and Fig. 3 The portable belt sander also includes a telescopic support. One end of the telescopic support is fixedly connected to the machine head 1, and the driven wheel 3 is located at the other end of the telescopic support. The telescopic support allows the distance between the driven wheel 3 and the driving wheel 2 to be adjustable, thereby adapting to sanding belts 4 of different widths or lengths and improving the versatility and flexibility of the equipment. In this embodiment, the telescopic support is specifically implemented as follows: the telescopic support includes a fixing member 5, a telescopic member 6, and a spring 7; the telescopic member 6 is inserted into the fixing member 5, and the spring 7 connects the telescopic member 6 and the fixing member 5, providing buffering and stabilization; the fixing member 5 is fixedly connected to the machine head 1, and the driven wheel 3 is connected to the telescopic member 6, allowing the driven wheel 3 to float up and down within a certain range to adapt to changes in the tension of the sanding belt 4.

[0032] In one embodiment, see Fig. 2To ensure the stability and guidance of the telescopic bracket, the fixing component 5 has a limiting groove 51, and the telescopic component 6 is provided with a limiting block 61, which is slidably connected in the limiting groove 51. This structure limits the telescopic distance and direction of movement of the telescopic component 6, limits the elongation of the spring 7, and prevents it from shifting or shaking during use.

[0033] In one embodiment, the driving wheel 2 and the driven wheel 3 are each provided with a mounting groove, and the two ends of the spring 7 are respectively installed in the corresponding mounting grooves. This not only further stabilizes the position of the spring 7, but also improves the support strength of the driving wheel 2 and the driven wheel 3.

[0034] In one embodiment, see Figs. 1 to 3 To further improve the polishing effect, the portable belt sander also includes a belt support frame 8 disposed between the drive wheel 2 and the driven wheel 3, and the belt support frame 8 is fixedly connected to the fixing member 5. The belt support frame 8 can support the sanding belt 4, making it run more smoothly and reducing the jumping and wear of the sanding belt 4 during the polishing process.

[0035] In one embodiment, the machine head 1 is an adjustable speed angle grinder head, with the drive wheel 2 fixedly connected to the output shaft of the machine head 1. The adjustable speed angle grinder head 1 can provide stable power output and change the grinding and polishing speed of the abrasive belt 4 by adjusting the rotation speed to meet the grinding and polishing requirements of different materials.

[0036] In one embodiment, see Fig. 3 To optimize the transmission effect of the sanding belt 4, the drive wheel 2 is provided with multiple through holes 21, and one end of the drive wheel 2 along the axial direction is provided with a hollowed-out groove to reduce the weight of the drive wheel 2 and reduce its rotational inertia. See also... Fig. 2 Both the driving wheel 2 and the driven wheel 3 are provided with an anti-slip layer 9. The anti-slip layer 9 is made of anti-slip soft rubber and is fixed to the surface of the driving wheel 2 and the driven wheel 3 by adhesive or rubber elasticity. The anti-slip layer 9 can increase the friction between the sanding belt 4 and the driving wheel 2 and the driven wheel 3, and prevent the sanding belt 4 from slipping or falling off during transmission.

[0037] The portable belt sander of this application has advantages such as simple structure, convenient operation, and good sanding effect. The telescopic bracket allows for adjustment of the distance between the driven wheel 3 and the driving wheel 2, improving the versatility and flexibility of the equipment. Meanwhile, the anti-slip layer 9 and the belt support frame 8 further enhance the sanding effect and the stability of the equipment, making it suitable for a wide range of applications.

[0038] It should also be noted that, without conflict, the embodiments of this utility model and the features therein can be combined with each other to obtain new embodiments.

[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. The scope of protection of the present utility model should be determined by the scope of the claims. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A portable belt sander / polisher, characterized in that, It includes a machine head (1), a drive wheel (2), a driven wheel (3), and a sanding belt (4); the drive wheel (2) and the driven wheel (3) are connected to one end of the machine head (1), and the sanding belt (4) is sleeved on the surfaces of the drive wheel (2) and the driven wheel (3) to form a transmission connection between the drive wheel (2) and the driven wheel (3); the machine head (1) drives the drive wheel (2) to rotate; The portable belt sander also includes a telescopic support, one end of which is fixedly connected to the machine head (1), and the driven wheel (3) is located at the other end of the telescopic support; The telescopic bracket includes a fixing member (5), a telescopic member (6), and a spring (7); the telescopic member (6) is inserted into the fixing member (5), and the spring (7) is connected between the telescopic member (6) and the fixing member (5); the fixing member (5) is fixedly connected to the machine head (1), and the driven wheel (3) is connected to the telescopic member (6).

2. The portable belt sander and polisher according to claim 1, characterized in that, The fixing member (5) has a limiting groove (51), and the telescopic member (6) has a limiting block (61). The limiting block (61) is slidably connected in the limiting groove (51).

3. The portable belt sander and polisher according to claim 1, characterized in that, The driving wheel (2) and the driven wheel (3) are respectively provided with mounting grooves, and the two ends of the spring (7) are respectively installed in the corresponding mounting grooves.

4. The portable belt sander and polisher according to claim 1, characterized in that, The portable belt sander also includes a belt support frame (8) disposed between the drive wheel (2) and the driven wheel (3), and the belt support frame (8) is fixedly connected to the fixing member (5).

5. The portable belt sander and polisher according to claim 4, characterized in that, The head (1) is an adjustable speed angle grinder head, and the drive wheel (2) is fixedly connected to the output shaft of the head (1).

6. The portable belt sander and polisher according to claim 1, characterized in that, The drive wheel (2) is provided with a through hole (21).

7. The portable belt sander and polisher according to claim 1, characterized in that, The surfaces of both the driving wheel (2) and the driven wheel (3) are provided with an anti-slip layer (9).

8. The portable belt sander and polisher according to claim 7, characterized in that, The anti-slip layer (9) is an anti-slip soft rubber, and the anti-slip layer (9) is applied to the surface of the driving wheel (2) and the driven wheel (3) by adhesive bonding or rubber elasticity.

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