Outer rounding machine for mandrel

Abstract

The utility model discloses a mandrel external rounding machine which comprises a grinding positioning mechanism, a grinding mechanism and an automatic feeding and discharging mechanism, the grinding positioning mechanism comprises two driving wheels, a pressing wheel, a first driving assembly and a second driving assembly, and the adjacent faces of the two driving wheels are used for bearing a grinding piece and make contact with an auxiliary accessory to drive the grinding piece to rotate. The first driving assembly is used for driving the driving wheel to rotate, and the second driving assembly is used for driving the pressing wheel to press the periphery of the auxiliary accessory. A workpiece is arranged on the auxiliary accessory in a sleeving mode, then the automatic feeding and discharging mechanism is moved to the two driving wheels, the auxiliary accessory is pressed by the pressing wheel, the driving wheels drive the auxiliary accessory and the workpiece to rotate, meanwhile, the grinding mechanism grinds the workpiece, and after grinding is completed, the automatic feeding and discharging mechanism is started. The automatic feeding and discharging mechanism moves away the auxiliary accessories and the workpieces and separates the auxiliary accessories and the workpieces, full-automatic workpiece grinding is achieved, the auxiliary accessories are matched with the workpieces for grinding, damage to the workpieces can be reduced, and the effect of protecting the workpieces is achieved.

Description

Technical Field

[0001] This utility model relates to the field of grinding equipment technology, and in particular to a grinding machine for the outer surface of a movement shaft. Background Technology

[0002] In the field of precision machining of dental handpiece mechanisms, the complexity and compactness of the mechanism structure have always presented challenges in surface polishing, resulting in high difficulty and low efficiency. Traditional polishing methods primarily rely on semi-automatic polishing equipment, which typically requires manual loading and unloading of the shaft. This not only increases operational complexity but also limits polishing accuracy and efficiency. Furthermore, after polishing, these semi-automatic devices often lack efficient shaft collection mechanisms. Workers must manually remove the polished shaft from the equipment, a step that is not only time-consuming and labor-intensive but also prone to damage or loss of the shaft during collection, further reducing production efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide a grinding machine for the outer shaft of a movement to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

[0004] The technical solution adopted to solve the above-mentioned technical problems is as follows:

[0005] This utility model provides a grinding machine for the outer surface of a movement shaft, including a grinding and positioning mechanism, a grinding mechanism, and an automatic loading and unloading mechanism. The grinding and positioning mechanism includes two drive wheels, a clamping wheel, a first drive assembly, and a second drive assembly. The adjacent surfaces of the two drive wheels support the workpiece to be ground and contact an auxiliary attachment to drive its rotation. The first drive assembly drives the drive wheels to rotate, and the second drive assembly drives the clamping wheel to press against the outer circumference of the auxiliary attachment. The grinding mechanism includes a grinding wheel and a grinding drive unit. The grinding drive unit drives the grinding wheel to grind the workpiece placed on the auxiliary attachment. The automatic loading and unloading mechanism is used to insert the auxiliary attachment and the workpiece and move them between the two drive wheels.

[0006] The beneficial effects of this utility model are:

[0007] During the grinding process of this application, the workpiece is placed on the auxiliary attachment, and then moved to two drive wheels by an automatic loading and unloading mechanism. A clamping wheel presses the auxiliary attachment down, and the workpiece is positioned beside the drive wheels. The drive wheels rotate both the auxiliary attachment and the workpiece, while the grinding mechanism grinds the workpiece simultaneously. After grinding is complete, the automatic loading and unloading mechanism removes and separates the auxiliary attachment and workpiece, achieving fully automatic workpiece grinding. This application utilizes an auxiliary attachment to assist in grinding the workpiece, reducing workpiece damage and protecting the workpiece.

[0008] As a further improvement to the above technical solution, the automatic loading and unloading mechanism includes a plugging and inserting assembly and a clamping assembly. The plugging and inserting assembly includes a first positioning seat, a second positioning seat, an inserting push block, a first plugging and inserting drive unit, and a second plugging and inserting drive unit. The first positioning seat is provided with a first positioning groove for positioning the workpiece, and the second positioning seat is provided with a second positioning groove for positioning the auxiliary accessory. The first positioning groove and the second positioning groove are both located on the same straight line. The inserting push block is slidably disposed in the first positioning groove. The first plugging and inserting drive unit is used to drive the inserting push block to move towards the second positioning seat, so that the inserting push block drives the workpiece to move and realize the insertion of the auxiliary accessory and the workpiece. The second plugging and inserting drive unit is used to drive the second positioning seat away from the first positioning seat, so that the auxiliary accessory moves and realizes the separation of the auxiliary accessory and the workpiece. The clamping assembly is used to move the inserted auxiliary accessory and the workpiece between the two drive wheels or to unload the workpiece.

[0009] As a further improvement to the above technical solution, the gripping assembly further includes a gripping structure, a lateral gripping unit, and a lifting gripping unit. The lateral gripping unit is used to drive the gripping structure to move back and forth between the two drive wheels or above the first positioning seat, and the lifting gripping unit is used to drive the gripping structure to lift up and down.

[0010] As a further improvement to the above technical solution, the gripping structure includes a rotating seat, a rotating drive unit, and at least two mechanical grippers. The rotating seat is provided with a first rotating axis, and the two mechanical grippers are arranged annularly around the first rotating axis. The rotating drive unit is used to drive the rotating seat to rotate, causing the at least two mechanical grippers to rotate to above the first positioning seat or to above the space between the drive wheels.

[0011] As a further improvement to the above technical solution, the automatic loading and unloading mechanism further includes a loading component, which includes a loading positioning groove, a loading robot, a transverse loading drive unit, and a lifting loading drive unit. The transverse loading drive unit is used to drive the loading robot to lift and lower, and the transverse loading drive unit is used to drive the loading robot to move back and forth between the loading positioning groove and the first positioning seat.

[0012] As a further improvement to the above technical solution, the automatic loading and unloading mechanism further includes a rotating seat and a rotation drive unit. The insertion and removal assembly is disposed on the rotating seat, and the rotating seat is provided with a second rotation axis. The rotation drive unit is used to drive the rotating seat to rotate around the second rotation axis. The rotation trajectory of the first positioning seat is respectively provided with a workpiece loading position and an insertion and removal position. The transverse loading drive unit is used to drive the loading robot to move back and forth between the workpiece loading position and the loading positioning groove. The transverse gripping unit is used to drive the gripping structure to move back and forth between the insertion and removal position and between the two drive wheels.

[0013] As a further improvement to the above technical solution, the first positioning seat is provided with a clearance groove, which is located on both sides of the first positioning groove.

[0014] As a further improvement to the above technical solution, the second positioning seat is provided with two blocks, which are located on the two side walls of the second positioning groove and protrude into the second positioning groove.

[0015] As a further improvement to the above technical solution, the second positioning seat is provided with a connecting groove, which communicates with the second positioning groove. The connecting groove is located at the end of the second positioning groove away from the first positioning seat. The width of the connecting groove is greater than the width of the second positioning groove. The connecting groove is provided with an abutting surface that is opposite to the insert push block.

[0016] As a further improvement to the above technical solution, the grinding mechanism also includes a drive unit, which is used to drive the grinding wheel closer to the drive wheel. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0018] Figure 1 This is a side view of an embodiment of a grinding machine for the outer shaft of a movement provided by this utility model, wherein the four arrows represent forward, backward, upward and downward directions respectively;

[0019] Figure 2 This is a schematic diagram of an embodiment of a grinding machine for the outer shaft of a movement provided by this utility model, wherein the six arrows represent forward, backward, left, right, upward and downward directions respectively;

[0020] Figure 3 This is a schematic diagram of an embodiment of a grinding machine for the outer shaft of a movement provided by this utility model, wherein the six arrows represent forward, backward, left, right, upward and downward directions respectively;

[0021] Figure 4This is a schematic diagram of an embodiment of a grinding machine for the outer shaft of a movement provided by this utility model, wherein the six arrows represent forward, backward, left, right, upward and downward directions respectively;

[0022] Figure 5 yes Figure 4 An enlarged view of A in the image.

[0023] Figure label:

[0024] Grinding positioning mechanism 100, drive wheel 110, pressure wheel 120, pressure wheel lifting drive unit 121, pressure wheel left and right translation drive unit 122, grinding mechanism 200, automatic loading and unloading mechanism 300, insertion and removal assembly 310, first positioning seat 311, second positioning seat 312, insertion push block 313, first insertion and removal drive unit 314, second insertion and removal drive unit 315, first positioning groove 316, clearance through groove 317, second positioning groove 318, connecting groove 319, gripping joint Components 321, rotating seat 3211, rotating drive unit 3212, first gripper 3213, second gripper 3214, lateral gripping unit 322, lifting gripping unit 323, feeding assembly 330, feeding positioning groove 331, vibratory plate 332, feeding robot 333, lateral feeding drive unit 334, lifting feeding drive unit 335, through groove 336, rotating seat 340, rotating drive unit 350, auxiliary accessories 400, workpiece 500, frame 600. Detailed Implementation

[0025] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0026] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, if there are words such as "several", they mean one or more, "multiple" means two or more, "greater than", "less than", "exceeding" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself.

[0028] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0029] Reference Figures 1 to 5 The following are examples of the external grinding machine for the movement shaft of this utility model:

[0030] A grinding machine for the outer surface of a movement shaft includes a grinding and positioning mechanism 100, a grinding mechanism 200, and an automatic loading and unloading mechanism 300. The automatic loading and unloading mechanism 300 includes a pull-in assembly 310, a clamping assembly, and a loading assembly 330. The loading assembly 330 clamps the workpiece 500 to the pull-in assembly 310. The pull-in assembly 310 inserts the auxiliary accessory 400 and the workpiece 500. Then, the clamping assembly moves the inserted auxiliary accessory 400 and the workpiece 500 to the grinding and positioning mechanism 100 for positioning. The grinding mechanism 200 grinds the outer peripheral wall of the workpiece 500 located in the grinding and positioning mechanism 100. After grinding, the clamping assembly moves the inserted auxiliary accessory 400 and the workpiece 500 to the pull-in assembly 310. The pull-in assembly 310 separates the auxiliary accessory 400 and the workpiece 500. The clamping assembly unloads the ground workpiece 500. This application uses auxiliary attachment 400 to workpiece 500 for grinding, which can reduce damage to workpiece 500 and protect workpiece 500.

[0031] The grinding positioning mechanism 100 includes two drive wheels 110, a clamping wheel 120, a first drive assembly, and a second drive assembly. The two drive wheels 110 are arranged side by side. The adjacent surfaces of the two drive wheels 110 are used to support the grinding workpiece and contact the auxiliary accessory 400 to drive its rotation. The first drive assembly is connected to one of the drive wheels 110 or to both drive wheels 110. The rotation of the drive wheels 110 drives the auxiliary accessory 400 to rotate, and the workpiece 500 rotates accordingly.

[0032] The second drive assembly includes a pressure roller lifting drive unit 121 and a pressure roller left-right translation drive unit 122. The pressure roller left-right translation drive unit 122 drives the pressure roller 120 to move to the left and above the space between the two drive rollers 110. Then, the pressure roller lifting drive unit 121 drives the pressure roller 120 to move down and press against the side wall of the auxiliary accessory 400, thus fixing the auxiliary accessory 400. When the auxiliary accessory 400 is loading or unloading, the pressure roller lifting drive unit 121 drives the pressure roller 120 to move up and then the pressure roller left-right translation drive unit 122 drives the pressure roller 120 to move to the right, reserving a position for the automatic loading and unloading mechanism 300 and avoiding interference with the operation of the automatic loading and unloading mechanism 300.

[0033] The grinding mechanism 200 includes a sliding seat, a push drive unit, a grinding wheel, and a grinding drive unit. Both the grinding wheel and the grinding drive unit are mounted on the sliding seat, which slides back and forth on the machine base. The push drive unit is connected to the sliding seat via a transmission mechanism. The push drive unit drives the grinding wheel closer to the drive wheel 110, making the grinding wheel tangent to the outer peripheral wall of the workpiece 500. The grinding drive unit drives the grinding wheel to grind the workpiece 500 mounted on the auxiliary accessory 400.

[0034] During the grinding process, the workpiece 500 is placed on the auxiliary attachment 400, and then the automatic loading and unloading mechanism 300 moves it onto the two drive wheels 110. The clamping wheel 120 clamps the auxiliary attachment 400, and the workpiece 500 is on the side of the drive wheel 110. The drive wheel 110 drives the auxiliary attachment 400 and the workpiece 500 to rotate. At the same time, the grinding mechanism 200 grinds the workpiece 500. After grinding is completed, the automatic loading and unloading mechanism 300 removes the auxiliary attachment 400 and the workpiece 500 and separates them, thus realizing fully automatic grinding of the workpiece 500.

[0035] The automatic loading and unloading mechanism 300 includes a plug-in assembly 310, a clamping assembly, and a loading assembly 330. The automatic loading and unloading mechanism is described in detail below.

[0036] The feeding assembly 330 includes a feeding positioning groove 331, a vibratory feeder 332, a feeding robot 333, a transverse feeding drive unit 334, and a lifting feeding drive unit 335. The vibratory feeder 332 sequentially feeds the workpieces 500 to the feeding positioning groove 331. The feeding positioning groove 331 extends to the left and right, and the workpieces 500 also extend to the left and right. The two side walls of the feeding positioning groove 331 are provided with through grooves 336, which extend back and forth. The workpieces 500 pass through the through grooves 336 from left to right, which facilitates the feeding robot 333 to reach in and grip the workpieces 500.

[0037] A transverse sliding seat is provided on the frame 600, and a transverse feeding drive unit 334 is also fixedly mounted on the frame 600. The transverse feeding drive unit 334 is connected to the transverse sliding seat in a transmission manner, driving the transverse sliding seat to slide back and forth. (See reference) Figure 2The lifting and loading drive unit 335 is located on the transverse sliding seat and is connected to the loading robot 333, driving the loading robot 333 to move up and down. The transverse loading drive unit 334 drives the loading robot 333 to move above the loading positioning slot 331. The lifting and loading drive unit 335 drives the loading robot 333 to descend and clamp the workpiece 500. After the workpiece 500 is clamped securely, the lifting and loading drive unit 335 drives the loading robot 333 to rise. The transverse loading drive unit 334 drives the loading robot 333 to move above the insertion and removal assembly 310. The lifting and loading drive unit 335 drives the loading robot 333 to descend and release the workpiece 500. The workpiece 500 is then positioned in the insertion and removal assembly 310.

[0038] Reference Figure 2 The insertion and removal assembly 310 includes a first positioning seat 311, a second positioning seat 312, an insertion push block 313, a first insertion and removal drive unit 314, and a second insertion and removal drive unit 315. The first positioning seat 311 is provided with a first positioning groove 316 for positioning the workpiece 500. The first positioning groove 316 extends to the left and right. The first positioning seat 311 is provided with an avoidance groove 317. The avoidance groove 317 is provided on both sides of the first positioning groove 316. The avoidance groove 317 passes through both sides of the first positioning groove 316 from front to back, so as to facilitate the loading robot 333 to extend into and grip the workpiece 500. The insertion push block 313 is slidably disposed on the first positioning groove 316. The first insertion and removal drive unit 314 is disposed on the base where the first positioning groove 316 is located. The second positioning base 312 is provided with a second positioning groove 318. Both the first positioning groove 316 and the second positioning groove 318 are arranged to extend to the left and right. The positioning auxiliary accessory 400 is disposed on the second positioning groove 318. The first insertion and removal drive unit 314 drives the insertion push block 313 to slide to the right to insert the workpiece 500 into the auxiliary accessory 400.

[0039] The automatic loading and unloading mechanism 300 also includes a rotating base 340 and a rotation drive unit 350. A plug-in assembly 310 is disposed on the rotating base 340. The rotating base 340 has a second rotation axis extending vertically. The rotation drive unit 350 drives the rotating base 340 to rotate 90 degrees around the second rotation axis. The state after rotation is shown in the figure. Figure 3 The rotation trajectory of the first positioning seat 311 is respectively provided with a workpiece loading position and a insertion / removal position. The transverse loading drive unit 334 is used to drive the loading robot 333 to move back and forth between the workpiece loading position and the loading positioning groove 331. The transverse gripping unit 322 is used to drive the gripping structure 321 to move back and forth between the insertion / removal position and the two drive wheels 110.

[0040] The second positioning seat 312 is provided with a connecting groove 319, which communicates with the second positioning groove 318. The connecting groove 319 is located at the right end of the second positioning groove 318, and its width is greater than that of the second positioning groove 318. The connecting groove 319 has an abutment surface that is opposite to the insertion push block 313. The second positioning seat 312 is provided with two stops, which are located at the opening of the connecting groove 319 and protrude into the second positioning groove 318. The auxiliary accessory 400 is provided with an annular step, which abuts against the stops. The annular step is placed in the second positioning groove 318. When the second insertion / removal drive unit 315 drives the second positioning seat 312 to move to the right, the auxiliary accessory 400 moves to the right along with the second positioning seat 312, causing the workpiece 500 and the auxiliary accessory 400 to be separated.

[0041] In some other embodiments, the rotating seat 340 and the rotating drive unit 350 may not be provided. In this case, the material assembly can be placed on the right side of the housing of the plug-in assembly 310. However, this results in a non-compact structure and a large space occupation.

[0042] The gripping assembly includes a gripping structure 321, a lateral gripping unit 322, and a lifting gripping unit 323. The lateral gripping unit 322 is used to drive the gripping structure 321 to move back and forth between the two drive wheels 110 or above the first positioning seat 311. The lifting gripping unit 323 is used to drive the gripping structure 321 to lift up and down.

[0043] The gripping structure 321 includes a rotating base 3211, a rotation drive unit 3212, and two mechanical grippers. The rotating base 3211 has a first rotation axis that extends back and forth. The two mechanical grippers are arranged annularly around the first rotation axis. The rotation drive unit 3212 drives the rotating base 3211 to rotate, causing the two mechanical grippers to rotate to above the first positioning seat 311 or to above the space between the drive wheels 110, respectively. For ease of explanation, the following will be... Figure 2 The mechanical gripper located on the lower side of the rotating seat 3211 is called the first gripper 3213, and the mechanical gripper located on the right side of the rotating seat 3211 is called the second gripper 3214.

[0044] The first gripper 3213 is responsible for gripping the unpolished workpiece 500 and auxiliary accessory 400 and moving them from the insertion / removal assembly 310 to the two drive wheels 110 for polishing. The second gripper 3214 is responsible for gripping the polished workpiece 500 and auxiliary accessory 400 and moving them from the two drive wheels 110 to the insertion / removal assembly 310 to separate and unload the workpiece 500. This application also provides two auxiliary accessories 400. When the first gripper 3213 and the second gripper 3214 move above the insertion / removal assembly 310, by setting the rotating base 3211 and the rotating drive unit 3212, the first gripper 3213 first clamps the unpolished workpiece 500 and auxiliary accessory 400, and then the second gripper 3214 separates the previously polished workpiece 500 and auxiliary accessory 400 and unloads the workpiece 500; when moving the corresponding positions of the two drive wheels 110, the second gripper 3214 first clamps the previously polished workpiece 500 and auxiliary accessory 400 from the two drive wheels 110, and then the first gripper 3213 places the unpolished workpiece 500 and auxiliary accessory 400 to the two drive wheels 110.

[0045] The working principle of this utility model is as follows: In actual operation, the vibratory feeder 332 transports the workpiece 500 to the loading and positioning slot 331. The lifting and loading drive unit 335 drives the loading robot 333 to descend and clamp the workpiece 500. After the workpiece 500 is clamped securely, the lifting and loading drive unit 335 drives the loading robot 333 to rise. The lateral loading drive unit 334 drives the loading robot 333 to move above the insertion and removal assembly 310. At this time, the insertion and removal assembly 310 rotates under the drive of the rotation drive unit 350. Figure 2 In the current state, the lifting and loading drive unit 335 drives the loading robot 333 to descend and release the workpiece 500. The workpiece 500 is located in the first positioning groove 316. The first insertion and removal drive unit 314 drives the insertion push block 313 to slide to the right to insert the workpiece 500 into the auxiliary accessory 400. At the same time, the insertion and removal assembly 310 rotates 90 degrees under the drive of the rotation drive unit 350. Figure 3In the first positioning slot 316, the rotary drive unit 3212 drives the first gripper 3213 to move downwards, gripping the inserted workpiece 500 and auxiliary accessory 400. Then, the rotary drive unit 3212 drives the second gripper 3214 to move downwards, placing the polished workpiece 500 and auxiliary accessory 400 into the first and second positioning slots 316 and 318 respectively. The second insertion / removal drive unit 315 drives the second positioning seat 312 to move backwards, causing the auxiliary accessory 400 to move backwards with the second positioning seat 312, separating the workpiece 500 and auxiliary accessory 400. The lifting gripper unit 323 drives the second gripper 3214 upwards. Simultaneously, the insertion / removal assembly 310 rotates 90 degrees counterclockwise under the drive of the rotary drive unit 350. Figure 2 A new set of inserted auxiliary accessories 400 and workpiece 500 are loaded. At this time, the lifting and gripping unit 323 drives the second gripper 3214 to release the insertion and removal assembly 310 below it. The workpiece 500 is unloaded into the receiving box below. The mechanical gripper driven by the lateral gripping unit 322 moves to the right and stops above the space between the two drive wheels 110. The lifting and gripping unit 323 drives the second gripper 3214 to move down and grip the polished workpiece 500 and auxiliary accessories 400. 0. Then, the lifting and gripping unit 323 drives the second gripper 3214 to move upward, and the rotation drive unit 3212 drives the first gripper 3213 to rotate above the two drive wheels 110, that is, drives the rotating seat 3211 to rotate clockwise. The lifting and gripping unit 323 drives the first gripper 3213 to move downward, placing the inserted auxiliary accessory 400 and workpiece 500. The lateral gripping unit 322 drives the mechanical gripper to move to the left to leave space for the pressure wheel 120 to press the workpiece 500. The pressure wheel moves left and right. The drive unit 122 drives the pressure roller 120 to move to the left, above the space between the two drive rollers 110. Then, the pressure roller lifting drive unit 121 drives the pressure roller 120 to move down, pressing against the side wall of the auxiliary accessory 400. The drive unit pushes the grinding roller to move backward, close to the drive roller 110, so that the grinding roller is tangent to the outer peripheral wall of the workpiece 500, and grinding of the workpiece 500 begins. After grinding, the drive unit pushes the grinding roller to move forward, and the pressure roller lateral movement drive unit 122 drives the pressure roller 120 to move to the left. The machine moves to the left between the two drive wheels 110. At the same time, the first gripper 3213 driven by the transverse gripping unit 322 moves to the left to grip the workpiece 500. After gripping the workpiece 500, the rotation drive unit 3212 drives the second gripper 3214 to rotate to the lower side. The grinding workpiece and auxiliary accessories gripped by the second gripper 3214 are placed in the pull-out assembly 310 to separate and unload the workpiece 500. This process is repeated. By setting two mechanical grippers, loading and unloading can be realized simultaneously, which further improves work efficiency.

[0046] It should be noted that the various drive units of this utility model are existing technologies, and the aforementioned rotary motion, lifting motion, and moving motion can all be driven by cylinders, electric push rods, or motor lead screw transmissions. Corresponding slide rails are provided for linear motion to improve motion accuracy, while corresponding rotational shafts are provided for rotary motion to improve rotational accuracy and stability.

[0047] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A grinding machine for the outer surface of a movement shaft, characterized in that, include: The grinding and positioning mechanism includes two drive wheels, a clamping wheel, a first drive assembly, and a second drive assembly. The two drive wheels are arranged side by side, and the adjacent surfaces of the two drive wheels are used to support the grinding workpiece and contact the auxiliary attachment to drive its rotation. The first drive assembly is used to drive the drive wheels to rotate, and the second drive assembly is used to drive the clamping wheel to press against the outer periphery of the auxiliary attachment. A grinding mechanism includes a grinding wheel and a grinding drive unit, wherein the grinding drive unit is used to drive the grinding wheel to grind the workpiece disposed on an auxiliary attachment; An automatic loading and unloading mechanism is used to insert auxiliary accessories and workpieces and move them between the two drive wheels.

2. The external grinding machine for a movement shaft according to claim 1, characterized in that: The automatic loading and unloading mechanism includes a plug-in assembly and a clamping assembly. The plug-in assembly includes a first positioning seat, a second positioning seat, an insertion push block, a first plug-in drive unit, and a second plug-in drive unit. The first positioning seat has a first positioning groove for positioning the workpiece, and the second positioning seat has a second positioning groove for positioning the auxiliary accessory. The first positioning groove and the second positioning groove are both located on the same straight line. The insertion push block is slidably disposed in the first positioning groove. The first plug-in drive unit is used to drive the insertion push block to move towards the second positioning seat, so that the insertion push block drives the workpiece to move and realize the insertion of the auxiliary accessory and the workpiece. The second plug-in drive unit is used to drive the second positioning seat away from the first positioning seat, so that the auxiliary accessory moves and realizes the separation of the auxiliary accessory and the workpiece. The clamping assembly is used to move the inserted auxiliary accessory and the workpiece between the two drive wheels or to unload the workpiece.

3. The external grinding machine for a movement shaft according to claim 2, characterized in that: The gripping assembly further includes a gripping structure, a lateral gripping unit, and a lifting gripping unit. The lateral gripping unit is used to drive the gripping structure to move back and forth between the two drive wheels or above the first positioning seat. The lifting gripping unit is used to drive the gripping structure to move up and down.

4. A grinding machine for the outer surface of a movement shaft according to claim 3, characterized in that: The gripping structure includes a rotating base, a rotating drive unit, and at least two mechanical grippers. The rotating base has a first rotating axis, and the two mechanical grippers are arranged annularly around the first rotating axis. The rotating drive unit is used to drive the rotating base to rotate, causing the at least two mechanical grippers to rotate to above the first positioning seat or to above the space between the drive wheels.

5. A grinding machine for the outer surface of a movement shaft according to claim 3, characterized in that: The automatic loading and unloading mechanism further includes a loading component, which includes a loading positioning slot, a loading robot, a transverse loading drive unit, and a lifting loading drive unit. The transverse loading drive unit is used to drive the loading robot to lift and lower, and the transverse loading drive unit is used to drive the loading robot to move back and forth between the loading positioning slot and the first positioning seat.

6. A grinding machine for the outer surface of a movement shaft according to claim 5, characterized in that: The automatic loading and unloading mechanism further includes a rotating seat and a rotation drive unit. The insertion and removal assembly is disposed on the rotating seat. The rotating seat is provided with a second rotation axis. The rotation drive unit is used to drive the rotating seat to rotate around the second rotation axis. The rotation trajectory of the first positioning seat is respectively provided with a workpiece loading position and an insertion and removal position. The transverse loading drive unit is used to drive the loading robot to move back and forth between the workpiece loading position and the loading positioning groove. The transverse gripping unit is used to drive the gripping structure to move back and forth between the insertion and removal position and between the two drive wheels.

7. A grinding machine for the outer shaft of a movement according to claim 2, characterized in that: The first positioning seat is provided with a clearance groove, which is located on both sides of the first positioning groove.

8. A grinding machine for the outer shaft of a movement according to claim 2, characterized in that: The second positioning seat is provided with two blocks, which are located on the two side walls of the second positioning groove and protrude into the second positioning groove.

9. A grinding machine for the outer surface of a movement shaft according to claim 8, characterized in that: The second positioning seat is provided with a connecting groove, which communicates with the second positioning groove. The connecting groove is located at the end of the second positioning groove away from the first positioning seat. The width of the connecting groove is greater than the width of the second positioning groove. The connecting groove is provided with an abutting surface that is opposite to the insert push block.

10. A grinding machine for the outer surface of a movement shaft according to claim 1, characterized in that: The polishing mechanism also includes a drive unit, which is used to drive the polishing wheel closer to the drive wheel.

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