Angle adjustable grinder

Abstract

The utility model discloses an angle-adjustable grinder, which includes a machine base, a Z-axis motion mechanism, a grinding head module, a support seat, a rotating seat, a spindle box, a movable rotating workpiece table, an adjusting screw, a nut handle and a movable frame, wherein the supporting seat is arranged on the machine base, the two sides of the rotating seat are arranged on the supporting seat through a rotating assembly, the two ends of the movable frame are rotatably arranged at the rear lower position of the supporting seat, the nut handle is rotatably arranged at the middle position of the movable frame, one end of the adjusting screw is hinged on the rotating seat, and the other end is adapted to the nut handle, the spindle box is arranged on the rotating seat through the Z-axis motion mechanism, the grinding head module is arranged on the spindle box, and the movable rotating workpiece table is arranged on the machine base corresponding to the front position of the supporting seat. The utility model has a reasonable structural design, and the rotating seat can rotate around the supporting seat, thereby changing the contact and grinding angle of the grinding head module on the workpiece. When the grinding angle needs to be adjusted, the operator turns the nut handle to make the adjusting screw act on the rotating seat, causing the rotating seat to rotate a corresponding angle, and then adjusts the contact grinding angle of the grinding head module to meet the grinding requirements of the inclined surface. The operation is simple and convenient, the structure is simple, and the working stability is good.

Description

Technical Field

[0001] The utility model relates to the technical field of grinders, in particular to an angle-adjustable grinder. Background Art

[0002] In the processing of daily hardware parts, it is often necessary to polish the sides of certain parts. In order to improve the side polishing effect, many side polishing machines are launched on the market.

[0003] As the inventor applied for on January 11, 2018, the invention patent named "Multi-station CNC side polishing machine" with patent number "201810028217.1" includes a base, an X-axis motion mechanism, a Y-axis motion mechanism, a gantry, a lifting beam, a lifting screw, an up and down reciprocating motion device, a lifting height adjustment device, a feed motion mechanism, a water basin, a workpiece clamping module and multiple polishing devices; the up and down reciprocating motion device, the X-axis motion mechanism, the Y-axis motion mechanism, the lifting height adjustment device, the feed motion mechanism, the workpiece clamping module and the polishing device are controlled by a CNC system to cooperate with each other to achieve the purpose of grinding and polishing, but the polishing device only performs lifting and lowering motion in the vertical direction, resulting in the grinding working surfaces of the polishing devices being fixed angles and cannot be adjusted, and cannot be suitable for the polishing needs of inclined surfaces. Utility Model Content

[0004] In view of the above-mentioned shortcomings, the purpose of the utility model is to provide an angle-adjustable grinder with reasonable structural design and capable of adjusting the grinding angle.

[0005] In order to achieve the above purpose, the technical solution provided by the utility model is:

[0006] An angle-adjustable grinder comprises a machine base, a Z-axis motion mechanism, a grinding head module, a support base, a rotating base, a spindle box, a movable rotating workpiece table, an adjusting screw, a nut handle and a movable frame, wherein the supporting base is arranged on the machine base, the two sides of the rotating base are arranged on the supporting base through a rotating assembly, the two ends of the movable frame are rotatably arranged at the rear lower position of the supporting base, the nut handle is rotatably arranged at the middle position of the movable frame, one end of the adjusting screw is hinged on the rotating base, and the other end is matched with the nut handle, the spindle box is arranged on the rotating base through the Z-axis motion mechanism, the grinding head module is arranged on the spindle box, and the movable rotating workpiece table is arranged on the machine base at a front position corresponding to the support base.

[0007] As a preferred solution of the utility model, the rotating assembly includes a bearing seat and a hollow shaft, the bearing seat is arranged on the support seat, and the hollow shaft is arranged on the two side walls of the rotating seat and is adapted to the bearing seat. When the angle needs to be adjusted, the rotating seat rotates freely in the rotating pair formed by the hollow shaft and the bearing seat to achieve angle adjustment.

[0008] As a preferred solution of the utility model, the support seat is provided with a seat bearing at the position corresponding to the movable frame, and the end of the movable frame is provided with a connecting head with the seat bearing to achieve a rotational connection, which not only ensures the flexible rotation of the movable frame, but also ensures that it remains stable under stress.

[0009] As a preferred solution of the utility model, the nut handle includes an adjusting handle, an adjusting nut and a connecting seat, the connecting seat is provided with a rotating cavity adapted to the adjusting nut, the adjusting nut is located in the rotating cavity, and is provided with a connecting portion extending into the rotating cavity, the connecting seat is fixed on the movable frame, and closes the opening of the rotating cavity, the adjusting handle is arranged on the connecting portion, and the adjusting handle is rotated to drive the adjusting nut to rotate through the connecting portion, thereby driving the adjusting screw to move forward and backward.

[0010] As a preferred scheme of the utility model, the grinding head module includes a grinding motor, an active rubber wheel, a sanding belt, a tensioning wheel, a tensioning adjustment device and a plurality of driven rubber wheels. The plurality of driven rubber wheels are arranged side by side on the spindle box at intervals. The tensioning wheel is arranged at a lateral position of one end of the spindle box through a tensioning adjustment device. The grinding motor is arranged at a lateral position of the other end of the spindle box. The active rubber wheel is arranged on the driving shaft of the grinding motor. The sanding belt is wound around the active rubber wheel, the driven rubber wheel and the tensioning wheel. The sanding belt is used as a grinding medium. The grinding motor drives the active rubber wheel to rotate, driving the sanding belt to rotate at high speed to grind the workpiece.

[0011] As a preferred solution of the utility model, the tensioning adjustment device includes a cylinder fixing seat, a tensioning cylinder and a wheel frame, the cylinder body of the tensioning cylinder is fixed on the cylinder fixing seat, the wheel frame is arranged on the piston rod of the tensioning cylinder, and the adjusting wheel is arranged on the wheel frame, and the tension of the sanding belt is adjusted by the telescopic action of the tensioning cylinder.

[0012] As a preferred solution of the utility model, the grinding head module includes a grinding motor, a driving pulley, a belt, a driven pulley and a plurality of grinding wheels, the plurality of grinding wheels are arranged side by side on the spindle box at intervals, the driven pulley and the grinding wheel are arranged coaxially, and the driven pulley is wound around the driving pulley and the driven pulley. The grinding wheel is used as the grinding medium, and the grinding motor drives the driven pulley and the grinding wheel to rotate synchronously through the driving pulley and the belt.

[0013] As a preferred solution of the utility model, the mobile rotating workpiece table includes an X-axis moving mechanism, a Y moving mechanism, a workpiece box, a lifting frame, a lifting drive device, a rotation positioning device, a rotating platform and a rotating motor. The Y moving mechanism is arranged on the machine base, the X-axis moving mechanism is arranged on the Y moving mechanism, the workpiece box is arranged on the X-axis moving mechanism, a plurality of rotating platforms are arranged side by side on the workpiece box at intervals, the rotating motor is arranged on the workpiece box and drives all rotating platforms to rotate synchronously through a synchronous belt, the lifting frame is arranged on the workpiece box, the lifting drive device is arranged on the workpiece box, and can drive the lifting frame to perform lifting and lowering movements relative to the workpiece box, and a plurality of rotation positioning devices are arranged on the lifting frame corresponding to the positions of the rotating platforms.

[0014] As a preferred solution of the utility model, the self-rotation positioning device includes a positioning cylinder, a pressure seat and a rubber block, the pressure seat is arranged on the piston rod of the positioning cylinder, the pressure seat is provided with a bearing, and the rubber block is installed on the bearing of the pressure seat through a rotating shaft, so that the rubber block can rotate while positioning the workpiece. The lifting frame includes a long plate, an inner tube, an outer tube, a screw and a nut, the outer tube is arranged on the workpiece box, the long plate is arranged at the upper end of the inner tube, the lower end of the inner tube is movably inserted into the outer tube, the nut is fixed in the inner tube and cooperates with the screw, and one end of the screw is connected to the lifting drive device.

[0015] The beneficial effects of the utility model are as follows: the utility model has a reasonable structural design, and the rotating seat can rotate around the supporting seat, thereby changing the contact grinding angle of the grinding head module on the workpiece. When the grinding angle needs to be adjusted, the operator turns the nut handle to make the adjusting screw act on the rotating seat, so that the rotating seat rotates a corresponding angle, and then adjusts the contact grinding angle of the grinding head module to meet the grinding requirements of the inclined surface. The operation is simple and convenient, and the structure is simple and the working stability is good.

[0016] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a side structural schematic diagram of embodiment 1 of the utility model.

[0018] Figure 2 It is a structural schematic diagram of the rotating seat and the spindle box in Example 1 of the utility model.

[0019] Figure 3 It is a structural schematic diagram of the adjusting screw rod and the nut handle in Example 1 of the utility model.

[0020] Figure 4 It is a structural schematic diagram of the grinding head module in Example 1 of the utility model.

[0021] Figure 5 It is a structural schematic diagram of the mobile rotating workpiece table in Example 1 of the utility model.

[0022] Figure 6 This is a schematic diagram of the structure of the grinding head module in Example 2 of the present utility model. Figure 1 .

[0023] Figure 7 This is a schematic diagram of the structure of the grinding head module in Example 2 of the present utility model. Figure 2 .

[0024] Figure 8 It is a three-dimensional structural schematic diagram of embodiment 3 of the present utility model.

[0025] Fig. 9 It is a three-dimensional structural schematic diagram of embodiment 4 of the present utility model. DETAILED DESCRIPTION

[0026] Example 1, see Figures 1 to 6 The present embodiment provides an angle-adjustable grinder, which includes a machine base 1, a Z-axis motion mechanism 2, a grinding head module 3, a support base 4, a rotating base 5, a spindle box 6, a movable rotating workpiece table 7, an adjusting screw 8, a nut handle 9, and a movable frame 10. In the present embodiment, a two-station structure is used for explanation. In other embodiments, three, four, five, or more stations may also be used.

[0027] The support seat 4 is arranged on the machine base 1, and the two sides of the rotating seat 5 are arranged on the support seat 4 through the rotating assembly 11. Specifically, the rotating assembly 11 includes a bearing seat and a hollow shaft. The bearing seat is arranged on the support seat 4, and the hollow shaft is arranged on the two side walls of the rotating seat 5 and is matched with the bearing seat. The precise matching of the bearing seat and the hollow shaft is used to provide stable and low-friction rotating support to ensure the stability and accuracy of the rotating seat 5 when adjusting the angle. When the angle needs to be adjusted, the rotating seat 5 rotates freely in the rotating pair formed by the hollow shaft and the bearing seat to achieve angle adjustment.

[0028] The two ends of the movable frame 10 are rotatably arranged at the rear lower position of the support seat 4. Specifically, the support seat 4 is provided with a seat bearing at a position corresponding to the movable frame 10, and the end of the movable frame 10 is provided with a connecting head 101 with the seat bearing 12, and the connecting head 101 is embedded in the seat bearing 12 to achieve a rotatable connection, which is simple and has a strong load-bearing capacity, and ensures that the movable frame 10 can be flexibly rotated and remains stable under stress.

[0029] The nut handle 9 is rotatably arranged in the middle position of the movable frame 10, one end of the adjusting screw rod 8 is hinged on the rotating seat 5, and the other end is adapted to the nut handle 9. Specifically, the nut handle 9 includes an adjusting handle 91, an adjusting nut 92 and a connecting seat 93, a rotating cavity 931 adapted to the adjusting nut 92 is provided in the connecting seat 93, the adjusting nut 92 is located in the rotating cavity 931, and a connecting portion extending into the rotating cavity 931 is provided, the connecting seat 93 is fixed on the movable frame 10, and the opening of the rotating cavity 931 is closed, the adjusting handle 91 is arranged on the connecting portion, the adjusting handle 91 is rotated, the adjusting nut 92 is driven to rotate through the connecting portion, and then the adjusting screw rod 8 is driven to move forward and backward.

[0030] The spindle box 6 is arranged on the rotating seat 5 through the Z-axis motion mechanism 2, and the grinding head module 3 is arranged on the spindle box 6. Specifically, the grinding head module 3 includes a grinding motor 31, a driving rubber wheel 32, a sanding belt 33, a tensioning wheel 34, a tensioning adjustment device 35 and two driven rubber wheels 36. The two driven rubber wheels 36 are arranged side by side on the spindle box 6 at intervals. The tensioning wheel 34 is arranged at a side position of one end of the spindle box 6 through the tensioning adjustment device 35. Specifically, the tensioning adjustment device 35 includes a cylinder fixing seat, a tensioning cylinder and a wheel frame. The cylinder body of the tensioning cylinder is fixed on the cylinder fixing seat, the wheel frame is arranged on the piston rod of the tensioning cylinder, and the adjusting wheel is arranged on the wheel frame. The tension of the sanding belt 33 is adjusted by the telescopic action of the tensioning cylinder. The grinding motor 31 is arranged at the side position of the other end of the spindle box 6, the active rubber wheel 32 is arranged on the driving shaft of the grinding motor 31, the sanding belt 33 is wound around the active rubber wheel 32, the driven rubber wheel 36 and the tensioning wheel 34, and the sanding belt 33 is used as the grinding medium. The grinding motor 31 drives the active rubber wheel 32 to rotate, driving the sanding belt 33 to rotate at a high speed to grind the workpiece.

[0031] The movable rotating workpiece table 7 is arranged on the machine base 1 at a position in front of the support seat 4. Specifically, the movable rotating workpiece table 7 includes an X-axis moving mechanism 71, a Y-moving mechanism 72, a workpiece box 73, a lifting frame 74, a lifting drive device 75, a self-rotation positioning device 76, a rotating platform 77 and a rotating motor 78. The Y-moving mechanism 72 is arranged on the machine base 1, the X-axis moving mechanism 71 is arranged on the Y-moving mechanism 72, the workpiece box 73 is arranged on the X-axis moving mechanism 71, two rotating platforms 77 are arranged side by side on the workpiece box 73, and the rotating motor 78 is arranged on the workpiece box 73, and all are driven by a synchronous belt. The rotating platform 77 rotates synchronously, the lifting frame 74 is arranged on the workpiece box 73, the lifting drive device 75 is arranged on the workpiece box 73, and can drive the lifting frame 74 to lift relative to the workpiece box 73. Specifically, the lifting frame 74 includes a long plate, an inner tube, an outer tube, a screw and a nut. The outer tube is arranged on the workpiece box 73, the long plate is arranged at the upper end of the inner tube, the lower end of the inner tube is movably inserted into the outer tube, the nut is fixed in the inner tube and cooperates with the screw, and one end of the screw is connected to the lifting drive device 75. Two self-rotation positioning devices 76 are arranged on the lifting frame 74 corresponding to the position of the rotating platform 77. Specifically, the self-rotation positioning device 76 includes a positioning cylinder, a pressure seat and a rubber block. The pressure seat is arranged on the piston rod of the positioning cylinder, and a bearing is arranged on the pressure seat. The rubber block is installed on the bearing of the pressure seat through a rotating shaft, so that the rubber block can rotate while positioning the workpiece.

[0032] During operation, the workpiece is placed on the rotating platform 77, and the lifting drive device 75 drives the lifting frame 74 to descend to a predetermined height, and the rotation positioning device 76 is controlled to press down to position the workpiece on the rotating platform 77. If the side of the workpiece is an inclined surface, the operator turns the nut handle 9 to make the adjusting screw 8 act on the rotating seat 5, so that the rotating seat 5 rotates a corresponding angle, and then adjusts the contact grinding angle of the grinding head module 3 to be consistent with the side inclination angle of the workpiece, and under the cooperation of the X-axis motion mechanism, the Y-axis motion mechanism, and the Z-axis motion mechanism 2, the inclined surface grinding requirements of the workpiece are met, and the operation is simple and convenient.

[0033] Embodiment 2: This embodiment provides an angle-adjustable grinder, which is basically the same in structure as Embodiment 1, except that the structure of the grinding head module 3 is different. Figure 6 and Figure 7The grinding head module 3 includes a grinding motor 31, a driving pulley 37, a belt 38, a driven pulley 39 and two grinding wheels 310. The two grinding wheels 310 are arranged side by side on the spindle box 6 at an interval. The driven pulley 39 and the grinding wheel 310 are coaxially arranged. The driven pulley 39 is wound around the driving pulley 37 and the driven pulley 39. The grinding wheel 310 is used as a grinding medium. The grinding motor 31 drives the driven pulley 39 and the grinding wheel 310 to rotate synchronously through the driving pulley 37 and the belt 38, and the workpiece is ground by the grinding wheel 310.

[0034] Example 3, see Figure 8 The present embodiment provides an angle-adjustable grinder, which is basically consistent with the structure of the first embodiment, except that a three-station structure design is adopted, that is, the number of the self-rotation positioning device 76, the rotating platform 77 and the driven rubber wheel 36 or the grinding wheel 310 is three respectively.

[0035] Example 4, see Fig. 9 The present embodiment provides an angle-adjustable grinder, which is basically the same as the structure of the first embodiment, except that a four-station structure design is adopted, that is, the number of the self-rotation positioning device 76, the rotating platform 77 and the driven rubber wheel 36 or the grinding wheel 310 is four. In other embodiments, five, six or more stations may be used.

[0036] According to the disclosure and teaching of the above specification, technicians in the field of the utility model can also change and modify the above implementation. Therefore, the utility model is not limited to the specific implementations disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the utility model. Other grinding methods that are the same or similar to them are all within the scope of protection of the utility model.

Claims

1. An angle-adjustable grinder, comprising a machine base, a Z-axis motion mechanism and a grinding head module, characterized in that: It also includes a supporting seat, a rotating seat, a spindle box, a movable rotating worktable, an adjusting screw, a nut handle and a movable frame. The supporting seat is arranged on the machine base, and the two sides of the rotating seat are arranged on the supporting seat through a rotating assembly. The two ends of the movable frame are rotatably arranged at the rear lower position of the supporting seat, and the nut handle is rotatably arranged in the middle position of the movable frame. One end of the adjusting screw is hinged on the rotating seat, and the other end is adapted to the nut handle. The spindle box is arranged on the rotating seat through a Z-axis motion mechanism, and the grinding head module is arranged on the spindle box. The movable rotating worktable is arranged on the machine base corresponding to the front position of the support seat.

2. The angle-adjustable grinder according to claim 1, characterized in that: The rotating assembly comprises a bearing seat and a hollow shaft. The bearing seat is arranged on the supporting seat, and the hollow shaft is arranged on two side walls of the rotating seat and is matched with the bearing seat.

3. The angle-adjustable grinder according to claim 1, characterized in that: A seat bearing is provided at a position of the support seat corresponding to the movable frame, and a connector for the seat bearing is provided at an end of the movable frame.

4. The angle-adjustable grinder according to claim 1, characterized in that: The nut handle includes an adjusting handle, an adjusting nut and a connecting seat. A rotating cavity matched with the adjusting nut is provided in the connecting seat. The adjusting nut is located in the rotating cavity and is provided with a connecting portion extending into the rotating cavity. The connecting seat is fixed on the movable frame and closes the opening of the rotating cavity. The adjusting handle is arranged on the connecting portion.

5. The angle-adjustable grinder according to claim 1, characterized in that: The grinding head module includes a grinding motor, an active rubber wheel, a sanding belt, a tensioning wheel, a tensioning adjustment device and a plurality of driven rubber wheels. The plurality of driven rubber wheels are arranged side by side on the spindle box at intervals. The tensioning wheel is arranged at a lateral position of one end of the spindle box through a tensioning adjustment device. The grinding motor is arranged at a lateral position of the other end of the spindle box. The active rubber wheel is arranged on the driving shaft of the grinding motor. The sanding belt is wound around the active rubber wheel, the driven rubber wheel and the tensioning wheel.

6. The angle-adjustable grinder according to claim 5, characterized in that: The tensioning adjustment device comprises a cylinder fixing seat, a tensioning cylinder and a wheel frame, the cylinder body of the tensioning cylinder is fixed on the cylinder fixing seat, the wheel frame is arranged on the piston rod of the tensioning cylinder, and the tensioning wheel is arranged on the wheel frame.

7. The angle-adjustable grinder according to claim 1, characterized in that: The grinding head module includes a grinding motor, a driving pulley, a belt, a driven pulley and a plurality of grinding wheels. The plurality of grinding wheels are arranged side by side on the spindle box at intervals. The driven pulley and the grinding wheel are coaxially arranged, and the driven pulley passes through the driving pulley and the driven pulley.

8. The angle-adjustable grinder according to claim 1, characterized in that: The mobile rotating workpiece table includes an X-axis moving mechanism, a Y-moving mechanism, a workpiece box, a lifting frame, a lifting drive device, a rotation positioning device, a rotating platform and a rotating motor. The Y-moving mechanism is arranged on the machine base, the X-axis moving mechanism is arranged on the Y-moving mechanism, the workpiece box is arranged on the X-axis moving mechanism, a plurality of rotating platforms are arranged side by side on the workpiece box at intervals, the rotating motor is arranged on the workpiece box and drives all rotating platforms to rotate synchronously through a synchronous belt, the lifting frame is arranged on the workpiece box, the lifting drive device is arranged on the workpiece box and can drive the lifting frame to perform lifting and lowering movements relative to the workpiece box, and a plurality of rotation positioning devices are arranged on the lifting frame corresponding to the positions of the rotating platforms.

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