Polishing head structure for handle type workpiece

Abstract

The utility model discloses a handle type workpiece grinding head structure which further comprises a lifting seat, an electric cylinder driving device, an extension arm, a rotating seat and an abrasive belt grinding assembly, the abrasive belt grinding assembly is arranged on the front face of the rotating seat, one end of the extension arm is fixed on the lifting seat, the other end of the extension arm extends to the front face of the rotating seat, and the rotating seat is arranged on the lifting seat. And the rotating shaft is hinged to the rotating seat through a hinge shaft. The grinding device is reasonable in structural design, the rotating axis of the rotating base is aligned with the abrasive belt center line of the abrasive belt grinding assembly, the grinding requirement of the handle type workpiece can be met only by driving the rotating base to rotate and swing through the electric cylinder driving device, the problem that traditional handle type workpieces need to swing up and down by a large margin is solved, and the grinding efficiency is improved. The lifting stroke distance of a traditional Z-axis moving mechanism is effectively shortened, loss is reduced, the working efficiency is improved, the electric cylinder driving device is adopted to drive the rotating base to rotate, rotation is stable, the reliability and stability of equipment operation are improved, and the grinding effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding and polishing, and particularly relates to a grinding head structure for handle-shaped workpieces. Background Art

[0002] In the processing of daily hardware parts, it is often necessary to polish some parts. To improve the polishing effect, many polishing machines have been introduced on the market. However, for the polishing of parts with different shapes, it is necessary to develop special polishing machines.

[0003] To polish handle-shaped parts, for example, the utility model patent with the publication number "CN217493768U" and the name "Handle Polishing Equipment" discloses a handle polishing equipment, which includes a machine base, a handle grinding mechanism, a tool clamping mechanism, a displacement detection mechanism and a first rotation mechanism. The handle grinding mechanism is arranged on the machine base and can move in the vertical direction. It includes a first mounting plate and a sand belt grinding assembly connected to the first mounting plate. The tool clamping mechanism is located on one side of the handle grinding mechanism. The tool clamping mechanism includes at least one first clamping member for placing the tool to be processed and a second clamping member for placing the standard tool. Both the first clamping member and the second clamping member can move towards or away from the handle grinding mechanism. The second clamping member can also rotate around the axis in the horizontal direction. The displacement detection mechanism is arranged in the vertical direction and corresponds to the position of the second clamping member. The displacement detection mechanism includes a detection head and a detection member. The detection member is used to detect the displacement of the detection head moving in the vertical direction. The first rotation mechanism includes a cross plate and two vertical plates. The two vertical plates are arranged at intervals and are respectively connected to the cross plate. A rotating plate is rotatably connected between the two vertical plates. One end of the rotating plate is connected to a first motor for driving the rotating plate to rotate around the axis in the horizontal direction. At least one of the first clamping members and the second clamping members are arranged at intervals on the rotating plate. The sand belt grinding assembly includes a third motor, a driving wheel, a driven wheel and a sand belt. The third motor is arranged on the back of the first mounting plate. The driving wheel and the driven wheel are both located on the front of the first mounting plate and are distributed at intervals. The driving wheel is sleeved on the motor shaft of the third motor. The sand belt is connected between the driving wheel and the driven wheel. Since the sand belt grinding assembly can only move up and down in the Z-axis direction and cannot tilt and rotate, it can only rely on the first motor to drive the rotating plate to rotate around the axis in the horizontal direction to realize the up and down swing of the handle. Although the handle can be ground in this way, because the position of the handle is far from its swing axis, the up and down swing amplitude of the handle is large, so the handle grinding mechanism needs to make large-stroke lifting actions frequently to achieve the grinding purpose, which correspondingly increases the loss of the Z-axis moving mechanism, shortens the service life, and the large-stroke lifting action also consumes more time and has low working efficiency. Content of the Utility Model

[0004] In view of the above deficiencies, the purpose of the present utility model is to provide a grinding head structure for handle-shaped workpieces with a reasonable structural design, which can reduce the wear of the Z-axis moving mechanism and has a high grinding efficiency.

[0005] To achieve the above purpose, the technical solution provided by the present utility model is:

[0006] A grinding head structure for handle-shaped workpieces further includes a lifting seat, an electric cylinder driving device, an extension arm, a rotating seat and a sand belt grinding assembly. The sand belt grinding assembly is arranged on the front of the rotating seat. One end of the extension arm is fixed on the lifting seat, and the other end extends to the front of the rotating seat and is hinged on the rotating seat through a hinge shaft. The axis of the hinge shaft is aligned with the center line of the sand belt of the sand belt grinding assembly. The electric cylinder driving device is arranged on the lifting seat and can drive the rotating seat to rotate around the hinge shaft.

[0007] As a preferred solution of the present utility model, mounting plates are provided on both sides of the lifting seat. Rear vertical bearing seats are provided on the mounting plates. Front vertical bearing seats are provided on the back of the rotating seat corresponding to the positions of the rear vertical bearing seats. One end of the electric cylinder driving device is arranged on the rear vertical bearing seat through a rear rotating shaft, and the other end of the electric cylinder driving device is arranged on the front vertical bearing seat through a front rotating shaft. The electric cylinder driving device is used to drive the rotating seat to rotate, with stable rotation, improving the reliability and stability of the equipment operation and ensuring the grinding effect.

[0008] As a preferred solution of the present utility model, the sand belt grinding assembly includes a grinding motor, a driving pulley, a driven pulley, a sand belt adjusting device and a plurality of grinding pressure wheels. The plurality of grinding pressure wheels are arranged side by side at intervals at the lower edge position of the rotating seat. The grinding motor is arranged on one side of the rotating seat. The driving pulley is arranged on the driving shaft of the grinding motor. The driven pulley is arranged on the other side of the rotating seat through the sand belt adjusting device. The sand belt passes around the driving pulley, the driven pulley and the grinding pressure wheels. The grinding motor drives the driving pulley, and drives the driven pulley and the grinding pressure wheels through the sand belt to achieve the purpose of grinding.

[0009] As a preferred embodiment of the present utility model, the abrasive belt adjusting device includes a cylinder base, a tensioning cylinder, a rotating bearing, a wheel frame, a mounting seat and an adjusting handle. The tensioning cylinder is mounted on the rotating seat through the cylinder base. The mounting seat is arranged on the piston rod of the tensioning cylinder. The back surface of the wheel frame is provided with an assembly cavity adapted to the outer shape of the rotating bearing, and the rotating bearing is fixed in the assembly cavity. The front surface of the mounting seat is provided with a mounting shaft mounted on the inner ring of the rotating bearing. The two adjusting handles are symmetrically arranged on both sides of the wheel frame and can press against the top surfaces on both sides of the mounting seat. The driven pulley is arranged on the wheel frame. By adjusting the position of the driven pulley through the telescopic movement of the tensioning cylinder, the purpose of adjusting the tension of the abrasive belt is achieved. By adjusting the rotation angle of the wheel frame through the adjusting handle, the deflection angle of the driven pulley is adjusted to realize the deviation adjustment of the abrasive belt.

[0010] As a preferred embodiment of the present utility model, an arc-shaped concave position is provided on the rotating seat corresponding to the position between two adjacent grinding pressure wheels. The arc-shaped concave position can avoid handle-shaped workpieces, which is more conducive to the grinding process.

[0011] As a preferred embodiment of the present utility model, a long hole for the extension arm to pass through is provided on the rotating seat, and a hinge seat is provided on each side corresponding to the two sides of the long hole. The two ends of the hinge shaft are arranged on the hinge seats, and the connection structure is stable and the swing is flexible.

[0012] The beneficial effects of the present utility model are as follows: The structure of the present utility model is reasonably designed. Since the rotation axis of the rotating seat is aligned with the center line of the abrasive belt of the abrasive belt grinding assembly, only the electric cylinder driving device needs to drive the rotating seat to rotate and swing to meet the grinding requirements of handle-shaped workpieces, avoiding the problem that traditional handle-shaped workpieces need to make large-amplitude up-and-down swings, effectively shortening the lifting stroke distance of the traditional Z-axis moving mechanism, reducing losses, improving work efficiency, and moreover, using the electric cylinder driving device to drive the rotation of the rotating seat, the rotation is stable, improving the reliability and stability of the equipment operation, and the grinding effect is good.

[0013] The following further illustrates the present utility model in conjunction with the drawings and embodiments. Brief Description of the Drawings

[0014] Figure 1 is the three-dimensional structure schematic diagram of the present utility model Figure 1 .

[0015] Figure 2 is the three-dimensional structure schematic diagram of the present utility model Figure 2 .

[0016] Figure 3 is the exploded structure schematic diagram of the present utility model.

[0017] Figure 4 is the structure schematic diagram of the abrasive belt adjusting device in the present utility model.

[0018] Figure 5 It is a schematic structural diagram of the present utility model installed on the Z-axis moving mechanism. Specific embodiments

[0019] Example, see Figures 1 to 4 A grinding head structure for a handle-like workpiece provided in this embodiment includes a lifting seat 1, an electric cylinder driving device 2, an extension arm 3, a rotating seat 4, and a sand belt grinding assembly 5.

[0020] The sand belt grinding assembly 5 is arranged on the front surface of the rotating seat 4. Specifically, the sand belt grinding assembly 5 includes a grinding motor 51, a driving pulley 52, a driven pulley 53, a sand belt adjusting device 54, and a plurality of grinding pressure wheels 55. The plurality of grinding pressure wheels 55 are arranged side by side at intervals at the lower edge position of the rotating seat 4. Preferably, an arc-shaped recess 43 is provided on the rotating seat 4 corresponding to the position between two adjacent grinding pressure wheels 55, and the handle-like workpiece can be avoided through the arc-shaped recess 43, which is more conducive to the grinding process. The sand belt part wound between two adjacent grinding pressure wheels 55 is used for grinding, which has a certain elasticity. The grinding motor 51 is arranged on one side of the rotating seat 4, the driving pulley 52 is arranged on the driving shaft of the grinding motor 51, and the driven pulley 53 is arranged on the other side of the rotating seat 4 through the sand belt adjusting device 54. Specifically, the sand belt adjusting device 54 includes a cylinder seat 541, a tensioning cylinder 542, a rotating bearing 543, a wheel frame 544, a mounting seat 545, and an adjusting handle 546. The tensioning cylinder 542 is installed on the rotating seat 4 through the cylinder seat 541, the mounting seat 545 is arranged on the piston rod of the tensioning cylinder 542, an assembly cavity 5441 adapted to the outer shape of the rotating bearing 543 is provided on the back surface of the wheel frame 544, the rotating bearing 543 is fixed in the assembly cavity 5441, a mounting shaft 5451 installed in the inner ring of the rotating bearing 543 is provided on the front surface of the mounting seat 545, and the two adjusting handles 546 are symmetrically arranged on both sides of the wheel frame 544 and can press against the top surfaces on both sides of the mounting seat 545. The driven pulley 53 is arranged on the wheel frame 544. The position of the driven pulley 53 is adjusted by the telescopic movement of the tensioning cylinder 542 to achieve the purpose of adjusting the tension of the sand belt. The rotation angle of the wheel frame 544 is adjusted through the adjusting handle 546 to adjust the deflection angle of the driven pulley 53, so as to realize the deviation adjustment of the sand belt. During operation, the sand belt winds around the driving pulley 52, the driven pulley 53, and the grinding pressure wheels 55. The grinding motor 51 drives the driving pulley 52, and drives the driven pulley 53 and the grinding pressure wheels 55 through the sand belt 56 to achieve the purpose of grinding.

[0021] One end of the extension arm 3 is fixed on the lifting seat 1, and the other end extends to the front of the turntable 4 and is hinged on the turntable 4 through a hinge shaft. Preferably, a long hole 41 for the extension arm 3 to pass through is provided on the turntable 4, and a hinge seat 42 is provided on each side corresponding to the long hole 41. Both ends of the hinge shaft are arranged on the hinge seat 42. The other end of the extension arm 3 passes through the long hole 41 and is arranged on the hinge shaft. The axis of the hinge shaft is aligned with the midline of the abrasive belt 56 of the abrasive belt grinding assembly 5.

[0022] The electric cylinder driving device 2 is arranged on the lifting seat 1 and can drive the turntable 4 to rotate around the hinge shaft. Specifically, mounting plates are provided on both sides of the lifting seat 1, and rear vertical bearing seats are provided on the mounting plates. Corresponding to the positions of the rear vertical bearing seats, front vertical bearing seats are provided on the back of the turntable 4. One end of the electric cylinder driving device 2 is arranged on the rear vertical bearing seat through a rear rotating shaft, and the other end of the electric cylinder driving device 2 is arranged on the front vertical bearing seat through a front rotating shaft. Using the electric cylinder driving device 2 to drive the turntable 4 to rotate can ensure smooth rotation, improve the reliability and stability of the equipment operation, and ensure the grinding effect.

[0023] During operation, refer to Figure 5 The lifting seat 1 is arranged on the Z-axis moving mechanism 6 and is driven by it to make reciprocating movements in the Z-axis direction. Through the telescopic action of the electric cylinder driving device 2, the rotation of the turntable 4 around the hinge shaft can be controlled, and the rotation is smooth, which improves the reliability and stability of the equipment operation and has a good grinding effect. Since the rotation axis of the turntable 4 is aligned with the midline of the abrasive belt 56 of the abrasive belt grinding assembly 5, only the electric cylinder driving device 2 needs to drive the turntable 4 to make a rotational swing to meet the grinding requirements of the handle-shaped workpieces, avoiding the problem that traditional handle-shaped workpieces need to make large-amplitude up-and-down swings, effectively shortening the lifting stroke distance of the Z-axis moving mechanism 6, reducing losses, and thus improving work efficiency.

[0024] According to the disclosure and teaching of the above specification, those skilled in the art of the present utility model can also make changes and modifications to the above embodiments. Therefore, the present utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present utility model should also fall within the protection scope of the claims of the present utility model. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present utility model. Other grinding machines using the same or similar ones are all within the protection scope of the present utility model.

Claims

1. A grinding head structure for handle-shaped workpieces, characterized in that, It further includes a lifting seat, an electric cylinder driving device, an extension arm, a rotating seat and a sand belt grinding assembly. The sand belt grinding assembly is arranged on the front of the rotating seat. One end of the extension arm is fixed on the lifting seat, and the other end extends to the front of the rotating seat and is hinged to the rotating seat through a hinge shaft. The axis of the hinge shaft is aligned with the center line of the sand belt of the sand belt grinding assembly. The electric cylinder driving device is arranged on the lifting seat and can drive the rotating seat to rotate about the hinge shaft as the axis.

2. The grinding head structure for handle-type workpieces according to claim 1, wherein: Mounting plates are arranged on both sides of the lifting seat. Rear vertical bearing seats are arranged on the mounting plates. Front vertical bearing seats are arranged on the back of the rotating seat corresponding to the positions of the rear vertical bearing seats. One end of the electric cylinder driving device is arranged on the rear vertical bearing seat through a rear rotating shaft, and the other end of the electric cylinder driving device is arranged on the front vertical bearing seat through a front rotating shaft.

3. The structure of the grinding head for handle-shaped workpieces according to claim 2, characterized in that: The sand belt grinding assembly includes a grinding motor, a driving pulley, a driven pulley, a sand belt adjusting device and a plurality of grinding pressure wheels. The plurality of grinding pressure wheels are arranged side by side at intervals at the lower edge position of the rotating seat. The grinding motor is arranged on one side of the rotating seat. The driving pulley is arranged on the driving shaft of the grinding motor. The driven pulley is arranged on the other side of the rotating seat through the sand belt adjusting device. The sand belt passes around the driving pulley, the driven pulley and the grinding pressure wheels.

4. The structure of the grinding head for handle-type workpieces according to claim 3, characterized in that: The sand belt adjusting device includes a cylinder seat, a tensioning cylinder, a rotating bearing, a wheel frame, a mounting seat and an adjusting handle. The tensioning cylinder is installed on the rotating seat through the cylinder seat. The mounting seat is arranged on the piston rod of the tensioning cylinder. An assembly cavity adapted to the outer shape of the rotating bearing is provided on the back of the wheel frame. The rotating bearing is fixed in the assembly cavity. A mounting shaft installed in the inner ring of the rotating bearing is provided on the front of the mounting seat. Two adjusting handles are symmetrically arranged on both sides of the wheel frame and can press against the top surfaces on both sides of the mounting seat. The driven pulley is arranged on the wheel frame.

5. The grinding head structure for handle-like workpieces according to claim 3, characterized in that: Arc-shaped recesses are provided on the rotating seat corresponding to the positions between adjacent two grinding pressure wheels.

6. The structure of the grinding head for handle-type workpieces according to claim 1, characterized in that: Long holes for the extension arm to pass through are provided on the rotating seat. A hinge seat is provided on each of the two sides corresponding to the long holes. Both ends of the hinge shaft are arranged on the hinge seats.

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