Polishing device

Abstract

A polishing device belongs to the technical field of workpiece polishing. Comprising a main frame (3), a driving motor (7) is arranged on the lower portion of the main frame (3), a driving shaft (14) and a driven shaft (19) are arranged on the two sides of the upper portion of the main frame (3) respectively, a driving belt wheel (2) and a driven belt wheel (9) are installed at the end of the driving shaft (14) and the end of the driven shaft (19) respectively, and an abrasive belt (6) is arranged between the driving belt wheel (2) and the driven belt wheel (9) in a sleeved mode. The abrasive belt polishing machine is characterized in that a fixing frame (12) is vertically fixed to the edge of the front side of the main frame (3), a fixing mechanism (4) used for fixing a workpiece to be polished is installed on the surface of the fixing frame (12), and an abrasive belt (6) passes through the lower portion of the fixing mechanism (4). According to the polishing device, the fixing mechanism is arranged, the workpiece to be polished is fixed, the defect that in the prior art, manual auxiliary fixing is needed is overcome, the labor intensity is lowered, and meanwhile potential safety hazards are eliminated.

Description

Technical Field

[0001] The invention discloses a grinding device, belonging to the technical field of workpiece grinding equipment. Background Art

[0002] After the casting is processed, it is often necessary to grind it. The grinding of the casting is usually done with a sanding belt, and the motor drives the sanding belt to move to achieve the grinding of the casting. However, this grinding method can only grind the exposed surface of the casting, but cannot grind the grooves of the casting. At present, the grooved castings can only be polished manually, which results in a low grinding speed and increased production costs.

[0003] The applicant of this application disclosed a technical solution in the Chinese utility model patent applied for on June 9, 2017 (application number 201720666954.5, patent name "A casting groove grinding device"). In this technical solution, a support plate is provided to support the sanding belt, thereby achieving direct grinding of the grooves of groove-type castings, improving the grinding speed of the castings, and thereby reducing the production cost of the castings.

[0004] However, the following problems still exist in the actual implementation of this technical solution: (1) In this technical solution, only a support plate is provided to support the sanding belt, but the casting itself still needs to be manually fixed during grinding, which increases the labor intensity and also poses certain safety hazards. (2) In this technical solution, a crank slider mechanism consisting of a joystick, a connecting rod and a driven shaft is provided to achieve the tightening of the sanding belt, but the crank slider mechanism is located on the inner side of the main frame, which is inconvenient to adjust and has a complex structure. Utility Model Content

[0005] The technical problem to be solved by the utility model is: to overcome the deficiencies of the prior art and to provide a grinding device which fixes the workpiece to be ground by setting a fixing mechanism, thereby avoiding the disadvantage of the prior art that manual auxiliary fixing is required, reducing labor intensity and eliminating safety hazards.

[0006] The technical solution adopted by the utility model to solve the technical problem is: the grinding device comprises a main frame, a driving motor is arranged at the lower part of the main frame, a driving shaft and a driven shaft are respectively arranged on both sides of the upper part of the main frame, the driving motor is connected to the driving shaft through a driving belt, a driving pulley and a driven pulley are respectively installed at the ends of the driving shaft and the driven shaft, an abrasive belt is sleeved between the driving pulley and the driven pulley, and the utility model is characterized in that: a fixing frame is vertically fixed at the front side edge of the main frame, a fixing mechanism for fixing the workpiece to be ground is installed on the surface of the fixing frame, and the abrasive belt passes through the lower part of the fixing mechanism.

[0007] Preferably, the fixing mechanism includes a mounting plate for fixing to the fixing frame, a fixing block is installed on one side of the mounting plate, a slot for accommodating the workpiece to be polished is provided in the fixing block, and a clamping assembly for fixing the workpiece to be polished is also provided at the slot.

[0008] Preferably, the mounting plate is a right-angle structure, including a vertical plate and a horizontal plate vertically located at the bottom of the vertical plate, and fixing holes for mounting with a fixing frame are opened on the surface of the horizontal plate.

[0009] Preferably, the clamping assembly includes a forward clamping bolt and a side clamping bolt which enter the interior of the bayonet from the opening of the bayonet.

[0010] Preferably, the forward clamping bolts are located on both sides of the bayonet, and the forward clamping bolts on both sides enter the bayonet from the front side of the bayonet respectively; side fixing blocks are fixed on both sides of the bayonet by fixing bolts, and the side clamping bolts are installed at the lower part of the side fixing blocks, and the side clamping bolts enter the bayonet from both sides of the bayonet respectively.

[0011] Preferably, an upper fixing plate is mounted on the surface of the main frame, a tensioning mechanism is provided at a corner of the upper fixing plate, the driven shaft is fixed in the tensioning mechanism, and an adjusting end of the tensioning mechanism is located outside the main frame.

[0012] Preferably, a protective cover is further provided on the surface of the upper fixed plate, the driving shaft passes through the protective cover, and the driving belt extends into the protective cover and is connected to the driving shaft.

[0013] Preferably, the tensioning mechanism comprises a tensioning box of a channel steel structure, one end of the tensioning box is closed, a tensioning block is movably placed in the channel body of the tensioning box, and the driven shaft is horizontally fixed on the surface of the tensioning block;

[0014] A tensioning bolt is vertically fixed on the surface of the tensioning block. The tensioning bolt passes through the closed end of the tensioning box and is threadedly connected with a tensioning nut arranged on the outer side of the closed end of the tensioning box.

[0015] Preferably, two limiting plates for limiting the position of the tensioning block are fixed on the upper part of the tensioning box.

[0016] Compared with the prior art, the beneficial effect of the present invention is that in the present grinding device, a fixing mechanism is provided to fix the workpiece to be ground, thereby avoiding the disadvantage of the prior art that manual auxiliary fixing is required, reducing labor intensity and eliminating safety hazards.

[0017] In the grinding device, a protective cover is provided and a driving belt cover is arranged inside the protective cover, thereby improving safety during operation.

[0018] In the grinding device, when adjusting the tension of the abrasive belt, the adjustment position is located outside the main frame, so the adjustment is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front view of the grinding device.

[0020] Figure 2 This is a top view of the grinding device.

[0021] Figure 3 This is the axonometric view of the grinding device fixing mechanism.

[0022] Figure 4 This is a front view of the grinding device fixing mechanism.

[0023] Figure 5 It is a top view of the fixing mechanism of the grinding device.

[0024] Wherein: 1, guard 2, driving pulley 3, main frame 4, fixing mechanism 5, driving belt 6, sanding belt 7, driving motor 8, tensioning mechanism 9, driven pulley 10, tensioning nut 11, tensioning bolt 12, fixing frame 13, rotating shaft seat 14, driving shaft 15, upper fixing plate 16, tensioning box 17, tensioning block 18, limiting plate 19, driven shaft 20, mounting plate 21, fixing block 22, fixing hole 23, side fixing block 24, fixing bolt 25, forward clamping bolt 26, side clamping bolt. DETAILED DESCRIPTION

[0025] Figures 1 to 5 It is the best embodiment of the utility model, and the following Figures 1 to 5 The utility model is further described.

[0026] like Figure 1~2 As shown, the grinding device includes a main frame 3, a lower support frame is arranged at the lower part of the main frame 3, and a driving motor 7 is fixed on the surface of the lower support frame.

[0027] The surface of the main frame 3 is a working surface. An upper fixing plate 15 is fixed horizontally on the left side of the workbench. A shield 1 is fixed on the surface of the upper fixing plate 15. The shield 1 extends to the right to the right end of the main frame 3. A rotating shaft seat 13 is fixed on the front and rear sides of the right end of the main frame 3 respectively. A driving shaft 14 is installed between the rotating shaft seats 13 on both sides. The driving shaft 14 passes through the shield 1 at the same time. A driving belt 5 is installed on the motor shaft of the self-driving motor 7. One end of the driving belt 5 is sleeved on the motor shaft of the driving motor 7, and the other end extends obliquely upward into the shield 1 and is connected to the driving shaft 14. When the driving motor 7 rotates, the driving shaft 14 is driven to rotate through the driving belt 5.

[0028] The front end of the driving shaft 14 extends to the outside of the main frame 3, and a driving pulley 2 is coaxially fixed to the front end. A tensioning mechanism 8 is provided at the front end of the right side of the upper fixed plate 15, and a driven shaft 19 is fixed on the surface of the tensioning mechanism 8. The front end of the driven shaft 19 extends to the outside of the main frame 3, and a driven pulley 9 is rotatably coaxially installed at the front end. The driving pulley 2 and the driven pulley 9 are arranged opposite to each other, and a sanding belt 6 is installed between the driving pulley 2 and the driven pulley 9, and the sanding belt 6 is kept at a certain tension by the tensioning mechanism 8.

[0029] The tensioning mechanism 8 includes a tensioning box 16 of an upper channel steel structure, and the right end of the tensioning box 16 is fixed and closed by a metal plate. A tensioning block 17 is movably placed in the channel of the tensioning box 16, and a driven shaft 19 is horizontally fixed on the surface of the tensioning block 17. Two limit plates 18 are also fixed on the upper part of the tensioning box 16 to limit the tensioning block 17. A tensioning bolt 11 is vertically fixed on the surface of the tensioning block 17 facing the closed end of the tensioning box 16, and the tensioning bolt 11 passes through the closed end of the tensioning box 16, and the tensioning bolt 11 is threadedly connected to a tensioning nut 10 arranged on the outer side of the closed end of the tensioning box 16.

[0030] By rotating the tensioning nut 10 outside the tensioning box 16, the position of the tensioning block 17 in the tensioning box 16 can be adjusted through the tensioning bolt 11, and the spacing between the driven pulley 9 and the driving pulley 2 can be further adjusted, and the tension of the abrasive belt 6 can be further adjusted. In the present grinding device, when the tension of the abrasive belt 6 is adjusted, the adjustment position is located outside the main frame 3, so the adjustment is more convenient.

[0031] A fixing frame 12 is also vertically fixed in the middle of the front side of the main frame 3, and a fixing mechanism 4 is installed on the surface of the fixing frame 12. The sanding belt 6 passes through the lower part of the fixing mechanism 4, and the casting to be polished is fixed by the fixing mechanism 4. When the sanding belt 6 rotates, it polishes the casting fixed on its upper part.

[0032] like Figures 3-5 As shown, the fixing mechanism 4 includes a mounting plate 20, which is a right-angle structure, including a vertical plate and a horizontal plate vertically located at the bottom of the vertical plate, and two fixing holes 22 are provided on the surface of the horizontal plate. The fixing frame 12 is also a right-angle structure, with its vertical plate fixed at the edge of the front side of the main frame 3, and its horizontal plate located above the main frame 3. After the horizontal plate of the mounting plate 20 in the fixing mechanism 4 and the horizontal plate of the fixing frame 12 are attached to each other, they are fixed by bolts passing through the fixing holes 22.

[0033] The fixing mechanism 4 further includes a fixing block 21, which is fixed to the bottom of the side of the vertical plate of the mounting plate 20 facing away from the horizontal plate. The fixing block 21 is provided with a bayonet facing away from the mounting plate 20. Both sides of the bayonet are vertically bent inward to form a positive mounting portion, and positive clamping bolts 25 are respectively provided at the positive mounting portions on both sides, and the positive clamping bolts 25 on both sides respectively pass through the positive mounting portions on the corresponding sides and then enter the interior of the bayonet of the fixing block 21.

[0034] Side fixing blocks 23 are fixed on the left and right sides of the bayonet of the fixed block 21 by fixing bolts 24 respectively, and side clamping bolts 26 are arranged at the lower part of the side fixing block 23. The side clamping bolts 26 on both sides pass through the side fixing blocks 23 on the corresponding sides and the bayonet of the fixed block 21 and then enter the interior of the bayonet of the fixed block 21.

[0035] The specific working process and working principle are as follows: before grinding, the forward clamping bolts 25 and the side clamping bolts 26 on both sides of the clamping mouth of the fixed clamping block 21 are withdrawn from the clamping mouth of the fixed clamping block 21, and then the casting to be ground is placed in the clamping mouth of the fixed clamping block 21, and the casting is fixed in the fixed clamping block 21 by the forward clamping bolts 25 and the side clamping bolts 26 on both sides. At this time, the casting is located directly above the sanding belt 6 and contacts the surface of the sanding belt 6.

[0036] Start the drive motor 7. When the drive motor 7 rotates, it drives the driving shaft 14 to rotate through the driving belt 5. The driving shaft 14 also drives the driving pulley 2 to rotate. When the driving pulley 2 rotates, it cooperates with the driven pulley 9 to make the sanding belt 6 circulate between the driving pulley 2 and the driven pulley 9 to achieve grinding of the casting.

[0037] The above is only the preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model.

Claims

1. A grinding device, comprising a main frame (3), a driving motor (7) is arranged at the lower part of the main frame (3), a driving shaft (14) and a driven shaft (19) are arranged on both sides of the upper part of the main frame (3), the driving motor (7) is connected to the driving shaft (14) through a driving belt (5), a driving pulley (2) and a driven pulley (9) are respectively installed at the ends of the driving shaft (14) and the driven shaft (19), and an abrasive belt (6) is sleeved between the driving pulley (2) and the driven pulley (9), wherein: A fixing frame (12) is vertically fixed at the front edge of the main frame (3), a fixing mechanism (4) for fixing a workpiece to be polished is installed on the surface of the fixing frame (12), and the sanding belt (6) passes through the lower part of the fixing mechanism (4).

2. The grinding device according to claim 1, characterized in that: The fixing mechanism (4) comprises a mounting plate (20) for fixing to a fixing frame (12), a fixing block (21) being mounted on one side of the mounting plate (20), a slot for accommodating a workpiece to be polished being arranged in the fixing block (21), and a clamping assembly for fixing the workpiece to be polished being also arranged at the slot.

3. The grinding device according to claim 2, characterized in that: The mounting plate (20) is a right-angle structure, comprising a vertical plate and a horizontal plate vertically located at the bottom of the vertical plate, and a fixing hole (22) for mounting with the fixing frame (12) is provided on the surface of the horizontal plate.

4. The grinding device according to claim 2, characterized in that: The clamping assembly comprises a forward clamping bolt (25) and a side clamping bolt (26) which enter the interior of the bayonet from the opening of the bayonet.

5. The grinding device according to claim 4, characterized in that: Positive clamping bolts (25) are located on both sides of the bayonet, and the positive clamping bolts (25) on both sides enter the bayonet from the front side of the bayonet respectively; side fixing blocks (23) are fixed on both sides of the bayonet by fixing bolts (24), and side clamping bolts (26) are installed at the lower part of the side fixing block (23), and the side clamping bolts (26) enter the bayonet from both sides of the bayonet respectively.

6. The grinding device according to claim 1, characterized in that: An upper fixing plate (15) is mounted on the surface of the main frame (3), a tensioning mechanism (8) is arranged at a corner of the upper fixing plate (15), a driven shaft (19) is fixed in the tensioning mechanism (8), and an adjustment end of the tensioning mechanism (8) is located outside the main frame (3).

7. The grinding device according to claim 6, characterized in that: A protective cover (1) is also provided on the surface of the upper fixed plate (15), the driving shaft (14) passes through the protective cover (1), and the driving belt (5) extends into the protective cover (1) and is connected to the driving shaft (14).

8. The grinding device according to claim 6, characterized in that: The tensioning mechanism (8) comprises a tensioning box (16) of a channel steel structure, one end of the tensioning box (16) is closed, a tensioning block (17) is movably placed in the channel body of the tensioning box (16), and a driven shaft (19) is horizontally fixed on the surface of the tensioning block (17); A tensioning bolt (11) is vertically fixed on the surface of the tensioning block (17). The tensioning bolt (11) passes through the closed end of the tensioning box (16) and is threadedly connected to a tensioning nut (10) arranged outside the closed end of the tensioning box (16).

9. The grinding device according to claim 8, characterized in that: Two limiting plates (18) for limiting the position of the tensioning block (17) are also fixed on the upper part of the tensioning box (16).

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