Suspension type grinding machine

Abstract

The utility model discloses a suspension type grinding machine which comprises a bottom plate, two sets of supporting columns are symmetrically arranged at the upper end of the bottom plate, sliding grooves are formed in the outer walls of the two sets of supporting columns in a penetrating mode, threaded rods are rotationally connected to the bottoms of the sliding grooves, a grinding cover is fixedly connected between the two sets of armrest frames, and a grinding wheel disc is rotationally connected into the grinding cover. Two sets of side plates are fixedly connected to the end face of the sliding block, cleaning brushes are slidably connected to the outer walls of the two sets of side plates, the cleaning brushes are attached to the outer wall of the threaded rod, and elastic assemblies for driving the cleaning brushes to be attached to the threaded rod are installed on the outer walls of the side plates. By arranging the cleaning brush tightly attached to the threaded rod and the elastic assembly, metal scraps on the surface of the threaded rod are automatically removed in the lifting process of the sliding block, the problem of thread clamping stagnation caused by accumulation of the scraps of a traditional suspension type grinding machine is effectively solved, smoothness and accuracy of height adjustment are guaranteed, and the service life of the grinding machine is prolonged. And therefore, the quality stability of grinding operation is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of sander, especially relates to suspension type sander. BACKGROUND

[0002] The grinder is used as general grinding tool, is widely used in manufacturing industry. Common grinder includes bench grinder, vertical grinder, hand-held grinder and suspension type grinder. In wear-resistant part production enterprise, suspension type grinder is usually used to grind and process medium and large castings.

[0003] In prior art, the suspension type sander mostly adopts the connecting mode of chain to suspend the sander in the air, but when fine polishing is carried out on part of small workpieces, part of sanders adopts the connecting mode of threaded rod to replace chain to adjust height, and compared with the connecting mode of chain, the connecting mode of threaded rod is more stable, but there are certain disadvantages in actual use, for example, the waste chips generated during polishing can be attached to the outer wall of threaded rod, so that threaded movement is not smooth, and when adjusting, the phenomenon of tooth skipping or jamming occurs, so that uneven polishing traces appear when polishing workpieces, and therefore the suspension type sander is needed to solve the above problems. CONTENT OF THE UTILITY MODEL

[0004] (I) technical problem solved

[0005] In view of the deficiencies of prior art, the cleaning brush closely combined with the threaded rod and the elastic component are arranged, metal waste chips on the surface of threaded rod are automatically removed during the lifting of sliding block, and the threaded jamming problem caused by waste chip accumulation is avoided.

[0006] (II) technical scheme

[0007] In order to achieve the above purpose, the utility model provides the following technical scheme: including bottom plate, the bottom plate upper end symmetry is provided with two groups of struts, two groups The outer wall of the struts is provided with a sliding groove, the sliding groove bottom is rotatably connected with threaded rod, the threaded rod threaded segment is screw threaded with sliding block, the sliding block side wall is fixedly connected with handrail frame, two groups The handrail frame is fixedly connected with the polishing cover between the polishing cover, the polishing cover is rotatably connected with the grinding disc piece, the sliding block end surface is fixedly connected with two groups of side plates, two groups The outer wall of the side plate is slidably connected with cleaning brush, the cleaning brush is closely combined with the outer wall of threaded rod, the outer wall of the side plate is installed with the elastic component that drives cleaning brush to be combined with threaded rod.

[0008] Preferably, the elastic component includes a connecting rod slidably connected to the outer wall of the side plate, the connecting rod end is fixedly connected with the cleaning brush, and the end of the side plate away from the cleaning brush is fixedly connected with a limiting block.

[0009] Preferably, the limiting block has a radius larger than that of the connecting rod, the outer wall of the connecting rod is sleeved with a spring, one end of the spring is fixedly connected with the side plate, and the other end of the spring is fixedly connected with the limiting block.

[0010] Preferably, the outer wall of the polishing cover is fixedly connected with a fixed plate, the fixed plate and the outer wall of the polishing cover are both rotationally connected with transmission wheels, and the transmission wheels outside the polishing cover are fixedly connected with the grinding disc in a coaxial manner.

[0011] Preferably, the outer wall of the fixed plate is fixedly connected with an asynchronous motor, the output shaft of the asynchronous motor is fixedly connected with the adjacent transmission wheel in a coaxial manner, the two groups of transmission wheels are connected with each other through a belt, and the belt is a V-shaped belt.

[0012] Preferably, the end surface of each of the two groups of struts is fixedly connected with a servo motor, and the output shaft of the servo motor is fixedly connected with the adjacent threaded rod in a coaxial manner.

[0013] (Three) beneficial effects

[0014] Compared with the prior art, the utility model provides a suspension type polishing machine, has the following beneficial effects:

[0015] 1. The cleaning brush and the elastic assembly closely fit the threaded rod, automatically remove the metal scrap on the surface of the threaded rod during the lifting of the sliding block, effectively solve the problem of threaded jam caused by scrap accumulation in the traditional suspension type polishing machine, ensure the smoothness and accuracy of height adjustment, and improve the quality stability of polishing operation.

[0016] 2. The threaded rod adjusting mechanism driven by the V-shaped belt transmission and the servo motor not only ensures the stability of power transmission of the grinding disc, but also avoids the influence of vibration on the height adjustment accuracy, ensures the reliability of equipment operation during polishing, and is suitable for surface treatment of hard materials such as titanium alloy with high machining precision. ACCURACY

[0017] Figure 1 The structure diagram of the suspension type polishing machine provided by the utility model is shown in the figure.

[0018] Figure 2 The structure diagram of the polishing cover, the grinding disc and the transmission wheel in the Figure 1

[0019] The structure diagram of the polishing cover, the grinding disc and the transmission wheel in the Figure 3 Figure 1 The structure diagram of the polishing cover, the grinding disc and the transmission wheel in the

[0020] Figure 4 The structure diagram of the polishing cover, the grinding disc and the transmission wheel in the Figure 3

[0021] ​​In the figure: 1, the base plate; 2, the support column; 3, the sliding groove; 4, servo motor; 5, handrail frame; 6, polishing cover; 7, sanding disc; 8, transmission wheel; 9, belt; 10, asynchronous motor; 11, threaded rod; 12, side plate; 13, cleaning brush; 14, limit block; 15, connecting rod; 16, spring; 17, sliding block. DETAILED DESCRIPTION

[0022] In the utility model, in the case where no opposite statement is made, the orientation such as "upper, lower" is usually for the direction shown in the drawing, or for the vertical, perpendicular or gravity direction; similarly, for the convenience of understanding and description, "left, right" is usually for the left and right shown in the drawing; "inner, outer" refers to the inner and outer relative to the contour of each component itself, but the above orientation words are not used to limit the utility model.

[0023] The utility model provides a technical scheme of:

[0024] Referring to Figures 1-4 , the suspension type polisher, including base plate 1, two groups of support columns 2 are symmetrically arranged on the upper end of base plate 1, sliding groove 3 is opened in the outer wall of two groups of support columns 2 and is penetrated, threaded rod 11 is rotatably connected at the bottom of sliding groove 3, sliding block 17 is threadedly connected on the threaded section of threaded rod 11, handrail frame 5 is fixedly connected on the side wall of sliding block 17, polishing cover 6 is fixedly connected between two groups of handrail frames 5, sanding disc 7 is rotatably connected in polishing cover 6, two groups of side plates 12 are fixedly connected on the end surface of sliding block 17, cleaning brush 13 is slidably connected on the outer wall of two groups of side plates 12, cleaning brush 13 is attached to the outer wall of threaded rod 11, and elastic assembly that drives cleaning brush 13 to attach threaded rod 11 is installed on the outer wall of side plate 12;

[0025] Further, cleaning brush 13 is always attached to the outer wall of threaded rod 11 by the elastic force of spring 16, in the lifting process of sliding block 17, cleaning brush 13 can scrape off the metal scrapes attached to the surface of threaded rod 11 in real time, avoids that scrapes are stuck in the thread gap and leads to the phenomenon of increased movement resistance or tooth skipping, thereby ensuring the smoothness and precision when threaded rod 11 adjusts height, and reducing the problem of uneven polishing caused by thread jamming.

[0026] Elastic assembly includes connecting rod 15 slidably connected on the outer wall of side plate 12, connecting rod 15 is fixedly connected with cleaning brush 13 at the end, and limit block 14 is fixedly connected at the end of side plate 12 away from cleaning brush 13;

[0027] Further, the sliding fit design of connecting rod 15 and limit block 14 can automatically compensate displacement when cleaning brush 13 wears, so that cleaning brush 13 is always in contact with threaded rod 11.

[0028] The limiting block 14 has a radius larger than that of the connecting rod 15, the outer wall of the connecting rod 15 is sleeved with a spring 16, one end of the spring 16 is fixedly connected with the side plate 12, and the other end of the spring 16 is fixedly connected with the limiting block 14;

[0029] Further, the pre-tightening force of the spring 16 can be adjusted according to the cleaning requirement of the threaded rod 11, and the pressing force of the cleaning brush 13 on the threaded rod 11 is changed by compressing or releasing the spring 16, so that the cleaning brush 13 is prevented from being rapidly worn due to excessive friction.

[0030] The outer wall of the polishing cover 6 is fixedly connected with a fixed plate, the fixed plate and the outer wall of the polishing cover 6 are rotatably connected with transmission wheels 8, the transmission wheel 8 outside the polishing cover 6 is coaxially fixedly connected with the grinding disc 7, the outer wall of the fixed plate is fixedly connected with an asynchronous motor 10, the output shaft of the asynchronous motor 10 is coaxially fixedly connected with the adjacent transmission wheel 8, and the two groups of transmission wheels 8 are connected with each other through a belt 9, and the belt 9 adopts a V-shaped belt.

[0031] Further, the buffer vibration absorption characteristic of the V-shaped belt 9 can absorb the impact vibration generated when the asynchronous motor 10 is started and the load is changed, and vibration is prevented from being transmitted to the threaded rod 11.

[0032] The end faces of the two groups of supporting columns 2 are fixedly connected with servo motors 4, and the output shafts of the servo motors 4 are coaxially fixedly connected with the adjacent threaded rods 11.

[0033] In specific use, the working principle of the utility model is as follows:

[0034] Firstly, an operator holds the equipment through the handrail frame 5, the servo motor 4 drives the threaded rod 11 to rotate, the sliding block 17 is stably lifted along the sliding groove 3, and the grinding disc 7 is accurately adjusted to the required polishing height.

[0035] When the grinding disc 7 approaches the surface of a workpiece, the operator starts the asynchronous motor 10, drives the transmission wheel 8 through the V-shaped belt 9, and drives the grinding disc 7 to rotate at high speed. The buffer vibration absorption characteristic of the V-shaped belt can effectively absorb the impact vibration when the motor is started or the load is suddenly changed, vibration is prevented from being transmitted to the threaded rod 11, and the spattering of metal scrap on the surface of the threaded rod 11 or the failure of the cleaning brush 13 due to vibration is further reduced.

[0036] When the abrasive disc 7 in the polishing cover 6 contacts the surface of the workpiece, the rigid support of the threaded rod 11 and the accurate control of the servo motor 4 are combined, so that the abrasive disc 7 always maintains a preset height, and the uneven polishing depth caused by height drift is avoided. At the same time, the flexible transmission of the V-shaped belt 9 can inhibit the lateral vibration of the abrasive disc 7, reduce the lateral interference to the threaded rod 11, and further ensure the stability of the height adjusting mechanism.

[0037] In summary, while ensuring the height adjusting accuracy of the threaded rod 11, the device solves the problems of poor movement and uneven polishing caused by the clamping of the waste in the traditional design, and is suitable for fine surface treatment of high-hardness materials such as titanium alloy.

[0038] The above is only a specific embodiment of the present application, but the technical features of the present application are not limited to this. Any simple change, equivalent replacement or modification made on the basis of the present application to solve the same technical problem and achieve the same technical effect is also covered by the protection scope of the present application.

Claims

1. Suspended sander comprising a base plate (1), characterised in that, The bottom plate (1) upper end symmetry is provided with two groups of support column (2), two groups of support column (2) outer wall are all through the opening of the sliding slot (3), the sliding slot (3) bottom rotationally connected with threaded rod (11), the threaded rod (11) threaded segment is connected with the sliding block (17) on the threaded connection, the sliding block (17) side wall is fixedly connected with handrail frame (5), two groups of handrail frame (5) between fixedly connected with polishing cover (6), the polishing cover (6) is rotationally connected with the grinding disc (7) in, the sliding block (17) end surface is fixedly connected with two groups of side plate (12), two groups of side plate (12) outer wall are all slidingly connected with cleaning brush (13), the cleaning brush (13) and threaded rod (11) outer wall are pasted, the side plate (12) outer wall is installed with the elastic assembly of the drive cleaning brush (13) pasting threaded rod (11).

2. The suspended sander of claim 1, wherein, The elastic assembly includes a connecting rod (15) slidingly connected to the outer wall of the side plate (12), the connecting rod (15) is fixedly connected to the cleaning brush (13) at the end, and the side plate (12) is fixedly connected to a limiting block (14) at the end away from the cleaning brush (13).

3. The suspended sander of claim 2, wherein, The limiting block (14) has a radius greater than that of the connecting rod (15), the connecting rod (15) is sleeved with a spring (16), one end of the spring (16) is fixedly connected to the side plate (12), and the other end of the spring (16) is fixedly connected to the limiting block (14).

4. The suspended sander of claim 3, wherein, The outer wall of the polishing cover (6) is fixedly connected with a fixed plate, and the outer wall of the fixed plate and the polishing cover (6) is rotationally connected with a transmission wheel (8), and the transmission wheel (8) coaxially fixedly connected with the grinding disc (7) outside the polishing cover (6).

5. The suspended sander of claim 4, wherein, The outer wall of the fixed plate is fixedly connected with an asynchronous motor (10), the output shaft of the asynchronous motor (10) is coaxially fixedly connected with the adjacent transmission wheel (8), and the two groups of transmission wheels (8) are connected with each other through a belt (9), and the belt (9) is a V-shaped belt.

6. The suspended sander of claim 5, wherein, The end surface of the two groups of support columns (2) is fixedly connected with a servo motor (4), and the output shaft of the servo motor (4) is coaxially fixedly connected with the adjacent threaded rod (11).

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