CN219967460U - Polisher to handle work piece - Google Patents

Abstract

The utility model discloses a polisher for workpieces with handles, which comprises: the polishing device comprises a machine base, a workpiece placement component, a peripheral side surface polishing device, a handle body polishing device and a motion driving device. The workpiece placement assembly is arranged on the machine base, the workpiece placement assembly is provided with a workpiece loading structure, the peripheral side surface polishing device is arranged on the machine base, the peripheral side surface polishing device is provided with a first polishing part and a first driving mechanism for driving the first polishing part to move, and the first polishing part is transversely arranged. The handle body grinding device is arranged on the machine base, and is provided with a second grinding part and a second driving mechanism for driving the second grinding part to move, and the second grinding part is vertically arranged. The motion driving device is configured to drive the workpiece loaded on the workpiece loading structure to move relative to the peripheral side grinding device and the handle body grinding device. The polishing machine can polish workpieces with handles.

Description

Polisher to handle work piece

Technical Field

The utility model relates to polishing equipment, in particular to a polishing machine for workpieces with handles.

Background

The prior grinding machine can grind the side surface of a workpiece, and generally comprises a workpiece placement component, a peripheral side surface grinding device and a motion driving device, wherein the workpiece placement component is provided with a workpiece loading structure for loading the workpiece, the workpiece is fixedly loaded on the workpiece loading structure, the peripheral side surface grinding device comprises a grinding part and a driving mechanism for driving the grinding part to move, the motion driving device can drive the workpiece to move relative to the grinding device, and the peripheral side surface of the workpiece can sequentially contact with the grinding part to finish grinding of the peripheral side surface. For some workpieces with handle bodies, the polishing parts of the existing polishing machine are difficult to enter the positions between the handle bodies and the workpiece bodies, so that polishing dead angles occur, areas which are not polished need to be processed later are troublesome, and the production efficiency is low.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a grinding machine for workpieces with handles.

A sander for a handled workpiece according to an embodiment of the present utility model includes: a base; the workpiece placement component is arranged on the base and is provided with a workpiece loading structure; the peripheral side polishing device is arranged on the base and is provided with a first polishing part and a first driving mechanism for driving the first polishing part to move, and the first polishing part is transversely arranged; the handle body polishing device is arranged on the base and is provided with a second polishing part and a second driving mechanism for driving the second polishing part to move, and the second polishing part is vertically arranged; and the motion driving device is configured to drive the workpiece loaded on the workpiece loading structure to move relative to the peripheral side polishing device and the handle body polishing device.

A sander for a workpiece with a handle according to an embodiment of the present utility model has at least the following advantageous effects: during polishing, a workpiece is loaded and fixed through the workpiece loading structure, the workpiece is enabled to change position relative to the peripheral side polishing device through the motion driving device, the peripheral side outside the workpiece handle body is enabled to be in contact with the transverse first polishing portion to polish the peripheral side, then the workpiece is enabled to change position relative to the handle body polishing device through the motion driving device, and the handle body of the workpiece and the surface nearby the handle body are enabled to be in contact with the vertical second polishing portion to polish the handle body. Foretell in-process, the week side of work piece can polish through horizontal first portion of polishing, and the handle body and near the face can polish through vertical second portion of polishing, and horizontal first portion of polishing easily polishes the week side of work piece, and the second portion of polishing of vertical setting gets into the near region of handle body more easily and polishes the handle body to the problem at missing dead angle of polishing when avoiding only adopting week side grinding device to polish. The polishing machine is characterized in that the peripheral side surface polishing device and the handle body polishing device are respectively configured for the peripheral side surface and the handle body and the surfaces nearby the peripheral side surface polishing device and the handle body polishing device, the whole functions are perfect, polishing of the workpiece with the handle can be completed on one machine, and the production efficiency is high.

According to some embodiments of the utility model, the first driving mechanism comprises a first base, a first driving wheel, a first driven wheel and a first driving motor, the first driving wheel and the first driven wheel are rotatably arranged on the first base, a rotation axis is vertically arranged, the first driving motor is arranged on the first base, an output shaft of the first driving motor is connected with the first driving wheel and can drive the first driving wheel to rotate, the first grinding part is a first abrasive belt, and the first abrasive belt is tensioned on the first driving wheel and the first driven wheel.

According to some embodiments of the utility model, the second driving mechanism comprises a second base, a second driving wheel, a second driven wheel and a second driving motor, the second driving wheel and the second driven wheel are rotatably arranged on the second base, the rotation axis is transversely arranged, the second driving motor is arranged on the second base, an output shaft of the second driving motor is connected with the second driving wheel and can drive the second driving wheel to rotate, the second polishing part is a second abrasive belt, and the second abrasive belt is tensioned on the second driving wheel and the second driven wheel.

According to some embodiments of the utility model, at least two of the second driving wheel and the second driven wheel are vertically spaced apart.

According to some embodiments of the utility model, the workpiece placement assembly further comprises a first driving device and a second driving device, wherein the first driving device is used for driving the peripheral side polishing device to be close to or far from the workpiece placement assembly, and the second driving device is used for driving the handle body polishing device to be close to or far from the second driving device of the workpiece placement assembly.

According to some embodiments of the utility model, the motion driving device comprises a moving driving module and a rotating driver, wherein the moving driving module is arranged on the base, the workpiece placement assembly is arranged on the moving driving module, the moving driving module is provided with a structure for driving the workpiece placement assembly to move back and forth and move left and right, and the rotating driver is arranged on the workpiece placement assembly and is configured to drive a workpiece loaded on the workpiece loading structure to rotate along a vertical axis.

According to some embodiments of the utility model, the peripheral side grinding device and the shank grinding device are disposed on a same side of the workpiece placement assembly, the peripheral side grinding device and the shank grinding device being disposed side-by-side.

According to some embodiments of the utility model, the workpiece placement assembly comprises a connecting seat, the workpiece loading structure comprises a bearing seat, a top pressure head and an upper driver and a lower driver, the connecting seat is arranged on the movable driving module, the bearing seat is pivoted to the connecting seat and the rotation axis is vertically arranged, the rotation driver is arranged on the connecting seat, an output shaft of the rotation driver is connected with the bearing seat and can drive the bearing seat to rotate, the top pressure head is arranged on the upper side of the bearing seat, the upper driver and the lower driver are connected with the connecting seat, the top pressure head is connected with the upper driver and the lower driver, the upper driver and the lower driver are used for driving the top pressure head to move up and down, and the top pressure head is rotatably arranged and the rotation axis is coaxial with the rotation axis of the bearing seat.

According to some embodiments of the utility model, the upper and lower drivers are connected with the connecting seat through a connecting frame, the connecting frame is a frame body, a lower frame strip of the frame body is fixed with the connecting seat, and the upper and lower drivers are connected with an upper frame strip of the frame body.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic perspective view of an embodiment of the present utility model;

FIG. 2 is an exploded view of an embodiment of the present utility model;

FIG. 3 is a partial schematic view of the structure shown in FIG. 1;

FIG. 4 is a perspective view of a peripheral side grinding apparatus according to an embodiment of the present utility model;

fig. 5 is a schematic perspective view of a handle polishing device according to an embodiment of the present utility model.

Reference numerals:

a workpiece 1;

a housing 100;

the workpiece placement assembly 200, the workpiece loading structure 210, the bearing seat 211, the top pressure head 212, the upper and lower drivers 213, the connecting seat 220 and the connecting frame 230;

the peripheral side grinding device 300, the first grinding part 310, the first driving mechanism 320, the first base 321, the first driving wheel 322, the first driven wheel 323 and the first driving motor 324;

the handle polishing device 400, the second polishing part 410, the second driving mechanism 420, the second base 421, the second driving wheel 422 and the second driven wheel 423;

a movement driving device 500, a movement driving module 510, and a rotation driver 520;

a first advance and retreat driving device 600;

a second advance and retreat driving device 700.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1 to 5, a sander for a workpiece with a handle, comprising: the tool comprises a machine base 100, a workpiece placement assembly 200, a peripheral side grinding device 300, a handle body grinding device 400 and a motion driving device 500. The workpiece placement assembly 200 is disposed on the stand 100, the workpiece placement assembly 200 is provided with a workpiece loading structure 210, the peripheral side polishing device 300 is disposed on the stand 100, the peripheral side polishing device 300 is provided with a first polishing portion 310 and a first driving mechanism 320 for driving the first polishing portion 310 to move, the first polishing portion 310 is disposed transversely, the handle polishing device 400 is disposed on the stand 100, the handle polishing device 400 is provided with a second polishing portion 410 and a second driving mechanism 420 for driving the second polishing portion 410 to move, the second polishing portion 410 is disposed vertically, and the movement driving device 500 is configured to be capable of driving the workpiece 1 loaded on the workpiece loading structure 210 to move relative to the peripheral side polishing device 300 and the handle polishing device 400. It will be understood that in the embodiment shown in the drawings, the lateral direction refers to a direction perpendicular to the up-down direction, and the vertical direction refers to the up-down direction.

During polishing, the workpiece 1 is loaded and fixed by the workpiece loading structure 210, the workpiece 1 is moved relative to the peripheral side polishing device 300 by the movement driving device 500, the peripheral side except the handle of the workpiece 1 is contacted with the transverse first polishing part 310 to polish the peripheral side, and then the workpiece 1 is moved relative to the handle polishing device 400 by the movement driving device 500, so that the handle of the workpiece 1 and the surface nearby the handle are contacted with the second polishing part 410 arranged vertically to polish the handle. In the above process, the peripheral side surface of the workpiece can be polished by the first transverse polishing part 310, the handle body and the surface near the handle body can be polished by the second vertical polishing part 410, the peripheral side surface of the workpiece can be easily polished by the first transverse polishing part 310, and the second vertically arranged polishing part 410 can enter the area near the handle body more easily and polish the handle body, so that the problem of missing polishing dead angles when polishing by the peripheral side surface polishing device 300 is avoided. The polishing machine is characterized in that the peripheral side surface polishing device 300 and the handle body polishing device 400 are respectively configured for the peripheral side surface and the handle body of the workpiece 1 and the surfaces nearby the peripheral side surface polishing device and the handle body polishing device, the overall functions are more complete, the polishing of the workpiece 1 with the handle can be completed on one machine, the subsequent treatment of non-polished areas is avoided, and the production efficiency is high.

In an embodiment, the first driving mechanism 320 includes a first base 321, a first driving wheel 322, a first driven wheel 323, and a first driving motor 324, where the first driving wheel 322 and the first driven wheel 323 are rotatably disposed on the first base 321 and the rotation axis is vertically disposed, the first driving motor 324 is disposed on the first base 321, an output shaft of the first driving motor 324 is coupled with the first driving wheel 322 and can drive the first driving wheel 322 to rotate, the first grinding part 310 is a first abrasive belt, and the first abrasive belt is tensioned on the first driving wheel 322 and the first driven wheel 323, so as to form a first abrasive belt disposed transversely. In the embodiment, the number of the first driven wheels 323 is set to one, but more than one may be set as needed.

In an embodiment, the second driving mechanism 420 includes a second base 421, a second driving wheel 422, a second driven wheel 423, and a second driving motor, where the second driving wheel 422 and the second driven wheel 423 are rotatably disposed on the second base 421 and the rotation axis is transversely disposed, the second driving motor is disposed on the second base 421, an output shaft of the second driving motor is coupled with the second driving wheel 422 and can drive the second driving wheel 422 to rotate, the second polishing portion 410 is a second abrasive belt, and the second abrasive belt is tensioned on the second driving wheel 422 and the second driven wheel 423, thereby forming a second abrasive belt disposed vertically. In the embodiment, the second driven wheel 423 is provided in three, but other numbers may be provided as needed, for example, one or two or more than three.

In an embodiment, the output shafts of the first drive motor 324 and the second drive motor may be directly coaxially connected with the first drive wheel 322 and the second drive wheel 422 or may be connected through a linkage mechanism, such as a gear set, a belt transmission mechanism, or the like.

The first driving mechanism 320 and the second driving mechanism 420 adopt abrasive belts for polishing, and the abrasive belt is simple in structure, easy to implement and easy to replace. It is envisioned that first grinding portion 310 and second grinding portion 410 are not limited to use with abrasive belts, but may be grinding wheels, for example, and first drive mechanism 320 and second drive mechanism 420 may be motors that drive rotation of the grinding wheels. It will be appreciated that when the first polishing portion 310 is a polishing wheel, the lateral arrangement thereof means that the rotation axis of the polishing wheel is in the vertical direction; when the second polishing portion 410 is a grinding wheel, the vertical arrangement thereof means that the rotation axis of the grinding wheel is in the lateral direction.

In the embodiment, at least two of the second driving wheel 422 and the second driven wheel 423 are arranged at intervals vertically, so that a section of abrasive belt which extends vertically and moves vertically can be formed, and the polishing effect is good.

In an embodiment, the tool further includes a first driving and retracting device 600 and a second driving and retracting device 700, wherein the first driving and retracting device 600 is used for driving the peripheral side polishing device 300 to be close to or far from the workpiece setting assembly 200, and the second driving and retracting device 700 is used for driving the handle body polishing device 400 to be close to or far from the second driving and retracting device 700 of the workpiece setting assembly 200. When polishing the peripheral side surface of the workpiece 1, the peripheral side surface polishing device 300 can be driven by the first advancing and retreating driving device 600 to approach the workpiece placement assembly 200, and the handle body polishing device 400 can be driven by the second advancing and retreating driving device 700 to be away from the workpiece placement assembly 200, so that the handle body polishing device 400 is prevented from influencing the polishing of the peripheral side surface of the workpiece 1; similarly, when the handle body is polished, the first and second driving devices 600 and 700 are used to make the peripheral side polishing device 300 far away from the workpiece setting assembly 200 and the handle body polishing device 400 close to the workpiece setting assembly 200, so that the peripheral side polishing device 300 is prevented from affecting the polishing of the handle body and the vicinity thereof. With the above-described structure, each polishing apparatus can be brought close to the work 1 when the corresponding process is performed, and away from the work 1 when the process is not performed, and the device can be set more compactly without worrying about the mutual influence between the respective apparatuses.

In an embodiment, the first driving device 600 and the second driving device 700 may be cylinder sliding tables, the cylinder sliding tables are disposed on the base 100, the cylinder sliding tables include linear sliding tables and cylinders disposed on the linear sliding tables, the peripheral side polishing device 300 and the handle polishing device 400 are disposed on the base 100 through corresponding linear sliding tables so as to be capable of moving linearly, and piston rods of the cylinders are correspondingly connected with the peripheral side polishing device 300 and the handle polishing device 400 so as to drive the peripheral side polishing device 300 and the handle polishing device 400 to move, so that functions of approaching and separating from the workpiece 1 are achieved. It is conceivable that the first advancing and retreating driving device 600 and the second advancing and retreating driving device 700 are not limited to the above-described configuration, and may be a mechanism such as a linear motor.

In an embodiment, the motion driving device 500 includes a moving driving module 510 and a rotation driver 520, the moving driving module 510 is disposed on the base 100, the workpiece placement module 200 is disposed on the moving driving module 510 (i.e. the workpiece placement module 200 is disposed on the base 100 through the moving driving module 510), the moving driving module 510 has a structure for driving the workpiece placement module 200 to move back and forth and move left and right, and the rotation driver 520 is disposed on the workpiece placement module 200 and configured to drive the workpiece 1 loaded on the workpiece loading structure 210 to rotate along a vertical axis.

The rotary driver 520 can drive the workpiece 1 to rotate, and the peripheral side surface of the workpiece 1 can be sequentially contacted with the first grinding part 310 along the extending direction of the workpiece 1 in cooperation with the plane movement action of the moving driving module 510, so that the peripheral side surface is ground; in the movement driving device 500 having this structure, the side surface of the handle and the surface near the handle may be sequentially adjusted to a position parallel to and in contact with the polishing surface of the second polishing portion 410, so that the respective surfaces may be sequentially polished. In an embodiment, the moving driving module 510 may be composed of two screw sliding tables perpendicular to each other, one screw sliding table is used for driving back and forth, the other screw sliding table is used for driving left and right, and the screw sliding tables may be driven by a servo motor. It is conceivable that the moving driving module 510 may be formed by two linear motors perpendicular to each other.

It should be appreciated that the motion driving device 500 is not limited to the above embodiment, and for example, a multi-axis robot may be used to mount the workpiece placement module 200 on the robot, so as to satisfy the required actions. It will be appreciated that due to the relativity of the movement, the movement driving device 500 may also be configured to drive the movement of the peripheral side grinding device 300 and the handle body grinding device 400.

In the embodiment, the peripheral side polishing device 300 and the handle body polishing device 400 are disposed at the same side of the workpiece setting assembly 200, and the peripheral side polishing device 300 and the handle body polishing device 400 are disposed side by side, so that a space at the other side of the workpiece setting assembly 200 can be left to upper and lower the workpiece 1.

In an embodiment, the workpiece placement assembly 200 includes a connection base 220, the workpiece loading structure 210 includes a bearing base 211, a top pressing head 212 and an up-down driver 213, the connection base 220 is disposed on the moving driving module 510, the bearing base 211 is pivoted to the connection base 220 and has a rotation axis vertically disposed, the rotation driver 520 is disposed on the connection base 220, an output shaft of the rotation driver 520 is coupled with the bearing base 211 and can drive the bearing base 211 to rotate, the top pressing head 212 is disposed on an upper side of the bearing base 211, the up-down driver 213 is connected with the connection base 220, the top pressing head 212 is connected with the up-down driver 213, the up-down driver 213 is used for driving the top pressing head 212 to move up-down, the top pressing head 212 is rotatably disposed and has a rotation axis coaxial with the rotation axis of the bearing base 211. When the workpiece 1 is loaded, the workpiece 1 is placed on the bearing seat 211, the upper and lower drivers 213 drive the pressing head 212 to move downwards, so that the workpiece 1 is pressed on the bearing seat 211, and when the rotary driver 520 drives the bearing seat 211 to rotate, the pressing head 212 can rotate, so that the rotation of the workpiece 1 is not influenced; the up-down driver 213 is connected to the connection base 220, which may not rotate with the workpiece 1, thereby reducing the possibility of interference.

In the embodiment, the output shaft of the rotary driver 520 is coaxially connected with the bearing seat 211, so as to drive the bearing seat 211 to rotate, however, it is conceivable that the output shaft of the rotary driver 520 may also be connected with the bearing seat 211 through a linkage mechanism, for example, a gear set. In an embodiment, the rotary driver 520 may employ a structure of a servo motor, a stepping motor, or the like.

In an embodiment, the up-down driver 213 may use an air cylinder, and the pressing head 212 may be disposed on a piston rod of the air cylinder through a bearing, so that the pressing head 212 may rotate and move up-down under the driving of the air cylinder. Of course, it is conceivable that the up-down driver 213 is not limited to the air cylinder, and may be, for example, an electric push rod or an electromagnet, and the top pressure head 212 may be pivotally connected to an operation portion of the up-down driver 213.

In the embodiment, the up-down driver 213 is connected to the connection base 220 through the connection frame 230, the connection frame 230 is a frame body, the lower frame strip of the frame body is fixed to the connection base 220, and the up-down driver 213 is connected to the upper frame strip of the frame body. With the above structure, the upper and lower drivers 213 are stably supported, and the frame holes of the frame body can be used for yielding the workpiece 1 without affecting the rotation of the workpiece 1.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims (9)

1. A sander for a workpiece having a handle, comprising:

a base (100);

a workpiece placement assembly (200) disposed on the base (100), the workpiece placement assembly (200) being provided with a workpiece loading structure (210);

the peripheral side polishing device (300) is arranged on the base (100), the peripheral side polishing device (300) is provided with a first polishing part (310) and a first driving mechanism (320) for driving the first polishing part (310) to move, and the first polishing part (310) is transversely arranged;

the handle body polishing device (400) is arranged on the base (100), the handle body polishing device (400) is provided with a second polishing part (410) and a second driving mechanism (420) for driving the second polishing part (410) to move, and the second polishing part (410) is vertically arranged;

and a motion driving device (500) configured to drive a workpiece (1) loaded on the workpiece loading structure (210) to move relative to the peripheral side polishing device (300) and the handle body polishing device (400).

2. A sander for handled workpieces as set forth in claim 1, wherein: the first driving mechanism (320) comprises a first base (321), a first driving wheel (322), a first driven wheel (323) and a first driving motor (324), wherein the first driving wheel (322) and the first driven wheel (323) are rotatably arranged on the first base (321) and the rotation axis is vertically arranged, the first driving motor (324) is arranged on the first base (321), an output shaft of the first driving motor (324) is connected with the first driving wheel (322) and can drive the first driving wheel (322) to rotate, the first grinding part (310) is a first abrasive belt, and the first abrasive belt is tensioned on the first driving wheel (322) and the first driven wheel (323).

3. A sander for handled workpieces as set forth in claim 1, wherein: the second driving mechanism (420) comprises a second base (421), a second driving wheel (422), a second driven wheel (423) and a second driving motor, the second driving wheel (422) and the second driven wheel (423) are rotatably arranged on the second base (421) and the rotation axis is transversely arranged, the second driving motor is arranged on the second base (421), an output shaft of the second driving motor is connected with the second driving wheel (422) and can drive the second driving wheel (422) to rotate, the second polishing part (410) is a second abrasive belt, and the second abrasive belt is tensioned on the second driving wheel (422) and the second driven wheel (423).

4. A sander for handled workpieces as set forth in claim 3, wherein: and at least two of the second driving wheels (422) and the second driven wheels (423) are vertically arranged at intervals.

5. A sander for handled workpieces as set forth in claim 1, wherein: the polishing device further comprises a first driving and reversing device (600) and a second driving and reversing device (700), wherein the first driving and reversing device (600) is used for driving the peripheral side polishing device (300) to be close to or far away from the workpiece placement assembly (200), and the second driving and reversing device (700) is used for driving the handle body polishing device (400) to be close to or far away from the second driving and reversing device (700) of the workpiece placement assembly (200).

6. The sander for handled workpieces as set forth in claim 1 or 5, wherein: the motion driving device (500) comprises a motion driving module (510) and a rotation driver (520), the motion driving module (510) is arranged on the base (100), the workpiece placement assembly (200) is arranged on the motion driving module (510), the motion driving module (510) is provided with a structure for driving the workpiece placement assembly (200) to move back and forth and move left and right, and the rotation driver (520) is arranged on the workpiece placement assembly (200) and is configured to drive a workpiece (1) loaded on the workpiece loading structure (210) to rotate along a vertical axis.

7. The sander for handled workpieces as set forth in claim 6, wherein: the peripheral side polishing device (300) and the handle body polishing device (400) are arranged on the same side of the workpiece placement assembly (200), and the peripheral side polishing device (300) and the handle body polishing device (400) are arranged side by side.

8. The sander for handled workpieces as set forth in claim 6, wherein: the workpiece placement assembly (200) comprises a connecting seat (220), the workpiece loading structure (210) comprises a bearing seat (211), a top pressure head (212) and an upper driver (213), the connecting seat (220) is arranged on the movable driving module (510), the bearing seat (211) is pivoted to the connecting seat (220) and is vertically arranged on a rotating axis, the rotating driver (520) is arranged on the connecting seat (220), an output shaft of the rotating driver (520) is connected with the bearing seat (211) and can drive the bearing seat (211) to rotate, the top pressure head (212) is arranged on the upper side of the bearing seat (211), the upper driver (213) is connected with the connecting seat (220), the top pressure head (212) is connected with the upper driver (213), the upper driver (213) is used for driving the top pressure head (212) to move up and down, and the top pressure head (212) is rotatably arranged and the rotating axis is coaxial with the rotating axis of the bearing seat (211).

9. The sander for handled workpieces as set forth in claim 8, wherein: the upper and lower drivers (213) are connected with the connecting seat (220) through a connecting frame (230), the connecting frame (230) is a frame body, the lower frame strip of the frame body is fixed with the connecting seat (220), and the upper and lower drivers (213) are connected with the upper frame strip of the frame body.