Small pneumatic polishing machine

Abstract

The utility model relates to a polishing machine, in particular to a small pneumatic polishing machine. Comprising a fixing seat, an extension column is fixedly connected to the position, close to one side, of the upper side wall of the fixing seat, a pneumatic motor is fixedly installed on the upper side wall of the extension column, an output shaft of the pneumatic motor sequentially penetrates through the extension column and the fixing seat and is coaxially and fixedly connected with a driving wheel, and a polishing assembly is arranged on the driving wheel. After the mounting frame is fixed on the vertical frame of the vertical machine tool, an operator twists the worm wheel to drive the worm wheel and the second gear to rotate, so that the second gear drives the first gear to rotate, and the connecting rod and the sliding sleeve vertically move along the side wall of the vertical plate through meshing transmission of the first gear and the rack; the movable connecting rod drives the fixing base and the polishing assembly to integrally and vertically move, so that the height of the abrasive belt is adjusted, the pneumatic polishing machine can comprehensively polish the side face of a workpiece placed on the operation table, and the polishing effect of the polishing machine is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a polishing machine, more particularly to a small pneumatic polishing machine. BACKGROUND

[0002] With the development of industry, the acceleration of life rhythm, industrial production efficiency is also improving, small and fast equipment is emerging in an endless stream, its advantage lies in convenient installation, simple replacement, cheap price, higher cost performance, small pneumatic polishing equipment is also designed based on the above advantages.

[0003] The vertical machine tool in the prior art is composed of an operation table and a vertical stand fixed on the upper side of the operation table, and the pneumatic polishing equipment installed on the vertical machine tool is usually fixed on the vertical stand, after the operator places the workpiece to be polished on the upper side of the operation table, the operator can make the pneumatic polishing equipment polish the side surface of the workpiece by moving the workpiece close to the polishing component of the pneumatic polishing equipment, however, if the position to be polished on the workpiece is higher or lower than the polishing component of the pneumatic polishing equipment, the operator cannot make the workpiece contact with the polishing component by horizontally pushing or rotating the workpiece, the operator needs to move the workpiece away from the operation table to make the position to be polished on the workpiece contact with the polishing component, if the quality of the workpiece is heavy, the operator will consume a lot of physical strength when carrying the workpiece, at the same time, if the workpiece does not contact with the operation table during polishing, the operator is difficult to control the polishing intensity of the polishing component to the workpiece, which affects the polishing quality of the polishing equipment to the workpiece. SUMMARY

[0004] The utility model aims at providing a small pneumatic polishing machine to solve the problems in the above background.

[0005] To achieve the above-mentioned purpose, one of the purposes of the utility model is to provide a small pneumatic polishing machine, which comprises a fixed seat, an extension column is fixedly connected to the upper side wall of the fixed seat near one side, a pneumatic motor is fixedly installed on the upper side wall of the extension column, the output shaft of the pneumatic motor extends through the extension column and the fixed seat in sequence and is coaxially fixedly connected with a driving wheel, a polishing assembly is arranged on the driving wheel, an installation assembly is arranged on the extension column, the installation assembly comprises a connecting rod fixedly arranged on the extension column, an installation frame is arranged at the other end of the connecting rod, an adjusting mechanism is arranged on the connecting rod, and the adjusting mechanism is used for adjusting the height of the connecting rod and the installation frame.

[0006] As a further improvement of the technical scheme, a vertical plate is fixedly connected to the middle of the installation frame, a sliding sleeve is fixed to the end of the connecting rod away from the extension column, the sliding sleeve is slidingly sleeved on the vertical plate, and the connecting rod slidingly contacts one side of the vertical plate.

[0007] As a further improvement of the technical solution, the side of the vertical plate close to the connecting rod is fixedly connected with a rack, the end of the connecting rod away from the extending column is provided with an embedded groove, the rack is arranged in the embedded groove, and the height adjusting mechanism comprises a first gear rotatably arranged in the embedded groove and engaged with the rack.

[0008] As a further improvement of the technical solution, the height adjusting mechanism further comprises a second gear rotatably arranged in the embedded groove and engaged with the first gear, a worm wheel coaxially and fixedly connected with one side of the second gear, and a worm rotatably arranged in the embedded groove and engaged with the worm wheel, one end of the worm extending to the outside of the embedded groove and coaxially and fixedly connected with a knob.

[0009] As a further improvement of the technical solution, the polishing assembly comprises a driven wheel rotatably arranged at the lower side of the fixed seat, and the same sand belt is movably connected with the driven wheel and the driving wheel.

[0010] As a further improvement of the technical solution, two inclined struts are symmetrically and fixedly connected to the lower side of the connecting rod close to the extending column, a roller is rotatably arranged at the other end of the inclined struts, the circumferential side of the roller is in contact with the side of the vertical plate close to the connecting rod, a reinforcing rib is fixedly connected between the middle of the upper side of the inclined struts and the lower side of the connecting rod, and a triangular structure is formed among the reinforcing rib, the connecting rod and the inclined struts.

[0011] Compared with the prior art, the utility model has the advantages of:

[0012] After the mounting frame is fixed on the stand of the vertical machine tool, the operator twists the worm wheel to drive the worm wheel and the second gear to rotate, the second gear drives the first gear to rotate, the first gear and the rack are engaged to drive the connecting rod and the sliding sleeve to move vertically along the side wall of the vertical plate, the moving connecting rod drives the fixed seat and the polishing assembly to move vertically as a whole, the height of the sand belt is adjusted, the pneumatic polishing machine can polish the side surface of the workpiece placed on the operation table, and the polishing effect of the polishing machine is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is an overall structure schematic view of the utility model;

[0014] Figure 2 It is a sectional view of the overall structure of the utility model;

[0015] Figure 3 It is a structure schematic view of the mounting assembly of the utility model;

[0016] Figure 4 It is a partial structure sectional view of the mounting assembly of the utility model;

[0017] Figure 5 Part structure diagram of installation assembly of the utility model;

[0018] Figure 6 Part structure diagram of installation assembly of the utility model.

[0019] The meaning of each reference sign in the figure is:

[0020] 1, fixed seat; 11, extension column;

[0021] 2, pneumatic motor; 21, drive wheel;

[0022] 3, driven wheel; 4, abrasive belt;

[0023] 5, connecting rod; 51, embedded groove; 52, sliding sleeve; 53, inclined strut; 54, roller; 55, reinforcing rib;

[0024] 6, height adjustment mechanism; 61, first gear; 62, second gear; 63, worm gear; 64, worm;

[0025] 7, installation frame; 71, vertical plate; 72, rack. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0027] Embodiment 1

[0028] Please refer to Figures 1-6The purpose of the embodiment is to provide a small pneumatic polishing machine. The polishing machine comprises a fixed seat 1, an extension column 11 fixedly connected to the upper side wall of the fixed seat 1, an installation assembly arranged on the extension column 11, a connecting rod 5 fixedly arranged on the extension column 11, an installation frame 7 arranged at the other end of the connecting rod 5, a plurality of installation holes symmetrically arranged on the installation frame 7, a plurality of bolts respectively penetrating through the installation holes and being screwed into a plurality of threaded holes arranged on a vertical machine tool, and the installation frame 7 being fixed on a stand of the vertical machine tool. The polishing machine can be installed on the vertical machine tool. A pneumatic motor 2 is fixedly arranged on the upper side wall of the extension column 11. The pneumatic motor 2 is connected with a gas source. An output shaft of the pneumatic motor 2 penetrates through the extension column 11 and the fixed seat 1 and is coaxially and fixedly connected with a driving wheel 21. A polishing assembly is arranged on the driving wheel 21. The polishing assembly comprises a driven wheel 3 rotatably arranged on the lower side of the fixed seat 1. The driven wheel 3 and the driving wheel 21 are drivingly connected with the same abrasive belt 4. The output shaft of the pneumatic motor 2 drives the driving wheel 21 to rotate. The driving wheel 21 drives the abrasive belt 4 to rotate through friction between the driving wheel 21 and the abrasive belt 4. The rotating abrasive belt 4 drives the driven wheel 3 to rotate through friction between the abrasive belt 4 and the driven wheel 3. In this way, the abrasive belt 4, the driving wheel 21 and the driven wheel 3 rotate simultaneously. After the operator touches a workpiece to be polished away from one side of the driving wheel 21, the rotating abrasive belt 4 moves relative to the workpiece. In this way, the abrasive belt 4 polishes the workpiece. The polishing machine is small in size, easy to install, and can be easily disassembled by one person. The equipment cost is low, and the cost required for polishing the workpiece is effectively reduced.

[0029] The vertical machine tool comprises an operating table and a stand fixed on the upper side of the operating table. After the polishing machine is installed on the stand of the vertical machine tool, the height of the abrasive belt 4 cannot be adjusted. After the operator fixes the workpiece to be polished on the operating table of the vertical machine tool, if the position of the workpiece to be polished is higher than the abrasive belt 4 or lower than the abrasive belt 4, the polishing machine cannot polish the predetermined position on the workpiece. To solve this problem, an adjusting mechanism 6 is arranged on the connecting rod 5. The adjusting mechanism 6 is used to adjust the height of the connecting portion of the connecting rod 5 and the installation frame 7. After the operator adjusts the height of the connecting portion of the connecting rod 5 and the installation frame 7 through the adjusting mechanism 6, the connecting rod 5, the fixed seat 1 and the polishing assembly move vertically as a whole. In this way, the height of the abrasive belt 4 is adjusted, the abrasive belt 4 can polish the side surface of the workpiece placed on the operating table, and the polishing effect of the polishing machine is improved. Figure 3The vertical plate 71 is fixedly connected to the middle of the installation frame 7, the slide sleeve 52 is fixed to the end of the connecting rod 5 away from the extension column 11, the slide sleeve 52 is slidably sleeved on the vertical plate 71, and the connecting rod 5 is in sliding contact with one side of the vertical plate 71; the end of the slide sleeve 52 away from the connecting rod 5 is arranged in the interior of the installation frame 7, and the connecting rod 5 is in sliding connection with the vertical plate 71 through the slide sleeve 52; after the polishing machine is installed on the vertical machine tool, the slide sleeve 52 will be subjected to a large shear force due to the weight of the connecting rod 5, the fixed seat 1 and the polishing assembly; in order to share the shear force received by the slide sleeve 52 and avoid the breakage of the slide sleeve 52 due to the large shear force, two inclined struts 53 are fixedly connected to the lower side of the connecting rod 5 close to the extension column 11 in a symmetrical manner; the other end of the inclined strut 53 is rotatably provided with a roller 54, the circumferential side of the roller 54 is in contact with the side of the vertical plate 71 close to the connecting rod 5, and the reinforcing rib 55 is fixedly connected between the upper side of the inclined strut 53 and the lower side of the connecting rod 5; the reinforcing rib 55, the connecting rod 5 and the inclined strut 53 form a triangular structure to enhance the structural strength of the inclined strut 53, so that the reinforcing rib 55, the roller 54 and the inclined strut 53 cooperate with the vertical plate 71 to support the connecting rod 5, thereby sharing the shear force received by the slide sleeve 52, prolonging the service life of the slide sleeve 52 and ensuring the connection stability between the connecting rod 5 and the vertical plate 71.

[0030] The structure of the height adjustment mechanism 6 is refined as follows, with reference to Figure 4The vertical plate 71 is fixedly connected with a rack 72 on the side close to the connecting rod 5, the connecting rod 5 is provided with an embedded groove 51 at the end away from the extension column 11, the rack 72 is arranged in the embedded groove 51, when the connecting rod 5 and the vertical plate 71 slide relative to each other, the rack 72 and the inner wall of the embedded groove 51 slide relative to each other, the height adjusting mechanism 6 comprises a first gear 61 rotatably arranged in the embedded groove 51, the first gear 61 is engaged with the rack 72, the height adjusting mechanism 6 further comprises a second gear 62 rotatably arranged in the embedded groove 51, the second gear 62 is engaged with the first gear 61, the second gear 62 is coaxially fixedly connected with a worm wheel 63 on one side, the embedded groove 51 is rotatably arranged with a worm 64 in the inside, the worm 64 is engaged with the worm wheel 63, and one end of the worm 64 extends to the outside of the embedded groove 51 and is coaxially fixedly connected with a knob, when an operator holds the knob and twists the worm 64, the worm 64 is driven to rotate through the engagement of the worm 64 and the worm wheel 63, the rotating worm wheel 63 drives the second gear 62 to rotate synchronously, the second gear 62 is driven to rotate through the engagement of the second gear 62 and the first gear 61, the first gear 61 is driven to rotate through the engagement of the first gear 61 and the rack 72, the first gear 61 and the rack 72 are driven to move relative to each other, the moving first gear 61 drives the connecting rod 5 to move vertically along the side wall of the vertical plate 71, the moving connecting rod 5 drives the fixed base 1 and the polishing assembly to move vertically as a whole, meanwhile, the connecting rod 5 drives the roller 54 to roll along one side of the vertical plate 71 through the inclined supporting rod 53, so as to adjust the height of the abrasive belt 4, when the abrasive belt 4 is adjusted to a predetermined height by the workpiece, the operator stops twisting the worm 64, the second gear 62 cannot rotate through the self-locking property of the engagement of the worm 64 and the worm wheel 63, the second gear 62 restricts the rotation of the first gear 61, and then the first gear 61 and the rack 72 are engaged to restrict the position change of the connecting rod 5 and the sliding sleeve 52, so that the pneumatic polisher can comprehensively polish the side surface of the workpiece placed on the operation table.

[0031] The basic principle, main features and advantages of the pneumatic polisher are shown and described above. It should be understood by those skilled in the art that the pneumatic polisher is not limited by the above embodiments, the above embodiments and descriptions in the specification are only preferred examples of the pneumatic polisher, and are not used to limit the pneumatic polisher, various changes and improvements of the pneumatic polisher can be made without departing from the spirit and scope of the pneumatic polisher, and these changes and improvements all fall within the scope of the claimed pneumatic polisher. The protection scope of the pneumatic polisher is defined by the appended claims and equivalents thereof.

Claims

1. A compact pneumatic polisher comprising a fixed base (1), characterised in that: The upper side wall of the fixed seat (1) is fixedly connected with an extension column (11) near one side, an air motor (2) is fixedly installed on the upper side wall of the extension column (11), an output shaft of the air motor (2) extends through the extension column (11) and the fixed seat (1) in sequence and is coaxially fixedly connected with a driving wheel (21), a polishing assembly is arranged on the driving wheel (21), an installation assembly is arranged on the extension column (11), the installation assembly comprises a connecting rod (5) fixedly arranged on the extension column (11), the other end of the connecting rod (5) is provided with an installation frame (7), an adjusting mechanism (6) is arranged on the connecting rod (5), and the adjusting mechanism (6) is used for adjusting the height of the connecting rod (5) and the installation frame (7).

2. The compact pneumatic polisher of claim 1, wherein: A vertical plate (71) is fixedly connected to the middle of the inside of the installation frame (7), one end of the connecting rod (5) away from the extension column (11) is fixedly connected with a sliding sleeve (52), the sliding sleeve (52) is slidably sleeved on the vertical plate (71), and the connecting rod (5) and one side of the vertical plate (71) are in sliding contact.

3. The compact pneumatic polisher of claim 2, wherein: A rack (72) is fixedly connected to one side of the vertical plate (71) close to the connecting rod (5), an embedded groove (51) is formed in one end of the connecting rod (5) away from the extension column (11), the rack (72) is arranged in the embedded groove (51), and the adjusting mechanism (6) comprises a first gear (61) rotatably arranged in the embedded groove (51), and the first gear (61) is in meshing connection with the rack (72).

4. The compact pneumatic polisher of claim 3, wherein: The adjusting mechanism (6) further comprises a second gear (62) rotatably arranged in the embedded groove (51), the second gear (62) is in meshing connection with the first gear (61), a worm wheel (63) is coaxially fixedly connected to one side of the second gear (62), a worm (64) is rotatably arranged in the embedded groove (51), the worm (64) is in meshing connection with the worm wheel (63), and one end of the worm (64) extends to the outside of the embedded groove (51) and is coaxially fixedly connected with a knob.

5. The compact pneumatic polisher of claim 1, wherein: The polishing assembly comprises a driven wheel (3) rotatably arranged on the lower side of the fixed seat (1), and the same sand belt (4) is drivingly connected to the driven wheel (3) and the driving wheel (21).

6. The compact pneumatic polisher of claim 1, wherein: Two inclined struts (53) are fixedly connected to the lower side of the connecting rod (5) near the extension column (11) in a symmetrical mode, a roller (54) is rotatably arranged at the other end of the inclined struts (53), the circumferential side of the roller (54) is in contact with one side of the vertical plate (71) close to the connecting rod (5) A reinforcing rib (55) is fixedly connected between the middle of the upper side of the inclined struts (53) and the lower side of the connecting rod (5), The reinforcing rib (55), the connecting rod (5) and the inclined struts (53) form a triangular structure.

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