Rotary multi-station belt sander and working method

Abstract

The present application relates to a kind of rotary multi-station abrasive belt machine and working method, belong to polishing equipment field.The present application includes abrasive belt machine base, its structural characteristics are in that:still include abrasive belt machine rotary table and the abrasive belt machine main body of at least one quantity, the abrasive belt machine main body is fixedly arranged on abrasive belt machine rotary table, the abrasive belt machine rotary table rotation is arranged on abrasive belt machine base, so that there is multiple stations in the rotation process of abrasive belt machine rotary table, the abrasive belt machine main body includes abrasive belt machine rack, driving wheel, abrasive belt, support guide structure and tensioning assembly, the driving wheel, support guide structure and tensioning assembly are all arranged on abrasive belt machine rack, and driving wheel, support guide structure and tensioning assembly are driven by abrasive belt, the quantity of the support guide structure is at least one, so that when abrasive belt passes through driving wheel, support guide structure and tensioning assembly can form multiple trends.

Description

TECHNICAL FIELD

[0001] The application relates to a rotary multi-station abrasive belt machine and a working method, and belongs to the field of polishing equipment. BACKGROUND

[0002] After a workpiece is processed and formed, the workpiece needs to be polished by using an abrasive belt machine. At present, most abrasive belt machines are fixedly arranged on a base and cannot rotate during polishing, and the workpiece is polished by a robot holding the workpiece. When the robot holds the workpiece to a polishing station, some positions of the workpiece cannot be polished due to the fixed position of the abrasive belt machine, and therefore, omnidirectional polishing cannot be achieved. In view of this, a kind of abrasive belt machine and working method are disclosed in the patent document with the application number 202111039490.2. The position of the abrasive belt machine in the above prior art does not change during polishing, and the workpiece cannot be polished in place. In addition, the abrasive belt in the above prior art is single and cannot be polished for different processes and different workpieces.

[0003] At the same time, the abrasive belt may deviate during high-speed operation of the abrasive belt machine. A deviation correction device is usually used to adjust the deviation. In view of this, a kind of tensioning deviation correction adjusting assembly of an abrasive belt machine is disclosed in the patent document with the application number 202122144767.X. The tensioning wheel in the above prior art is usually installed through bearings. When the bearings in the above prior art are damaged and need to be replaced, the parts need to be completely disassembled before replacement, and therefore, assembly and replacement are not convenient.

[0004] The force of the robot end holding the workpiece pressing on the abrasive belt is controlled by manual debugging points. Different people have different debugging methods, that is, the contact force is different, which may easily lead to overcutting of the workpiece and affect the grinding surface quality. In view of this, a kind of constant force polishing device of an abrasive belt machine is disclosed in the patent document with the application number 202122142280.8. The constant force cylinder 4 in the above prior art provides a constant force to the supporting guide wheel 3, and the constant force provided by the supporting guide wheel 3 cannot be adjusted. SUMMARY

[0005] The application aims to overcome the above-mentioned deficiencies in the prior art and provide a rotary multi-station abrasive belt machine and a working method with a reasonable structure design.

[0006] The technical scheme adopted by the present application to solve the above problems is: the rotary multi-station abrasive belt machine comprises an abrasive belt machine base, and is characterized in that: the abrasive belt machine further comprises an abrasive belt machine rotary table and at least one abrasive belt machine main body, the abrasive belt machine main body is fixedly arranged on the abrasive belt machine rotary table, the abrasive belt machine rotary table is rotationally arranged on the abrasive belt machine base, so that there are multiple stations in the rotation process of the abrasive belt machine rotary table; the abrasive belt machine main body comprises an abrasive belt machine rack, a driving wheel, an abrasive belt, a support and guide structure, and a tensioning assembly, the driving wheel, the support and guide structure, and the tensioning assembly are all arranged on the abrasive belt machine rack, and the driving wheel, the support and guide structure, and the tensioning assembly are driven by the abrasive belt, the number of the support and guide structure is at least one, so that multiple trends of the abrasive belt can be formed when the abrasive belt passes through the driving wheel, the support and guide structure, and the tensioning assembly; the tensioning assembly comprises a roller module, an adjusting module, and a tensioning cylinder, the roller module is arranged on the adjusting module, the adjusting module is arranged on the tensioning cylinder, and the tensioning cylinder is arranged on the abrasive belt machine rack. The abrasive belt machine main body is rotated on the abrasive belt machine base by the abrasive belt machine rotary table, so that the posture of the robot cannot be reached to realize all-around polishing of the workpiece, the abrasive belt forms multiple trends, and then different processes and different workpieces can be polished, the roller module and the adjusting module are designed in a modular manner, so that the roller module can be conveniently replaced and installed.

[0007] Further, the abrasive belt machine main body further comprises a floating unit, the floating unit is arranged on the abrasive belt machine rack, and the floating unit is located between the two support and guide structures. The floating unit can ensure that the force acting on the workpiece is constant.

[0008] Further, the roller module comprises a tensioning roller, a tensioning roller shaft, a roller screw, and a roller connecting seat, the tensioning roller is arranged on the tensioning roller shaft, one roller connecting seat is arranged at each end of the tensioning roller shaft, and the roller connecting seat is connected with the adjusting module through the roller screw. The roller connecting seat is connected with the adjusting rack through the roller screw, so that the roller connecting seat can be conveniently disassembled and installed.

[0009] Further, the adjusting module comprises an adjusting base, an adjusting frame, a rotating shaft, a rotating shaft screw, an adjusting screw rod, an adjusting spring, a screw rod support and a spring support, the rotating shaft is arranged on the adjusting frame and connected with the adjusting base through the rotating shaft screw, the adjusting base is arranged on the tension cylinder, the adjusting frame is arranged in a Y-shaped structure, the screw rod support and the spring support are arranged on the adjusting base and located on the same side of the adjusting base, one adjusting top block is arranged on each side of the adjusting frame, the adjusting screw rod is arranged on the screw rod support and in contact with one adjusting top block, one end of the adjusting spring is in abutment with the spring support, the other end of the adjusting spring is in abutment with the other adjusting top block, the screw rod support and the spring support are arranged in an L-shaped structure and in an integral structure with the adjusting base. The adjusting frame can rotate on the adjusting base along the rotating shaft to adjust the roller module, the adjusting frame can rotate on the adjusting base along the rotating shaft by rotating the adjusting screw rod in a forward direction, and the adjusting frame can be reset by the adjusting spring when the screw rod is rotated in a reverse direction; the screw rod support and the spring support are arranged in an L-shaped structure and in an integral structure with the adjusting base, which can be used for mounting the adjusting screw rod and the adjusting spring and reducing the number of parts, facilitating machining and installation.

[0010] Further, the floating unit comprises a fixing base, a floating structure in contact with the abrasive belt and supporting the workpiece during polishing, and an adjusting structure for adjusting the swing angle of the floating structure; the adjusting structure is arranged on the fixing base and cooperates with the floating structure, and the fixing base is arranged on the abrasive belt grinding machine rack. The swing angle of the floating structure can be adjusted by the adjusting structure to adjust the contact force between the floating structure and the abrasive belt.

[0011] Further, the floating structure comprises a floating base, a floating swing arm and a floating wheel, the floating swing arm is arranged on the floating base through a floating shaft, one end of the floating swing arm is in contact with the adjusting structure, and the floating wheel is arranged at the other end of the floating swing arm. The floating swing arm can swing on the floating base along the floating shaft to adjust the swing angle of the floating wheel.

[0012] Further, the adjusting structure comprises an adjusting rod, a shell, a compression sleeve, a floating sleeve and a reset spring, the adjusting rod is arranged on the fixing base, the shell, the compression sleeve, the floating sleeve and the reset spring are sleeved outside the adjusting rod, the shell is threadedly connected with the adjusting rod, the compression sleeve is located in the shell, the floating sleeve is located in the compression sleeve, the two ends of the reset spring are in abutment with the compression sleeve and the floating sleeve respectively, and the floating sleeve is in contact with the floating structure. The movement of the shell can drive the compression sleeve to move, and the reset of the compression sleeve and the floating sleeve can be realized through the reset spring.

[0013] Further, the shell is provided with an upper end face gear, the compression sleeve is provided with a lower end face gear, and the upper end face gear cooperates with the lower end face gear. The upper end face gear and the lower end face gear can realize that the shell can only rotate in one direction. If the shell needs to rotate in another direction, the upper end face gear needs to be pulled away from the lower end face gear to realize the rotation in another direction. In normal working, the shell is prevented from rotating reversely, so that the force of the reset spring of the floating structure can be ensured not to change, thereby ensuring that the workpiece is subjected to constant force.

[0014] Further, the floating sleeve is provided with a floating protrusion, the floating protrusion is in contact with the floating structure, and the floating protrusion is provided in an arc structure to realize linear contact between the floating protrusion and the floating swing arm. When the floating swing arm needs to be adjusted to swing along the floating shaft, the floating protrusion and the floating swing arm are in linear contact to facilitate the adjustment of the floating swing arm.

[0015] Further, the floating structure is arranged between two support guide structures, the fixed seat and one support guide structure are arranged on the belt sander frame, and the other support guide structure is arranged on the fixed seat. The floating structure is arranged on the other support guide structure. After the abrasive belt passes through the two support guide structures, the abrasive belt can approach a plane, the floating structure supports one side of the abrasive belt, and the other side of the abrasive belt can be used to polish the workpiece.

[0016] Further, the floating swing arm is provided with an adjusting hole, and the adjusting hole is penetrated by an adjusting rod.

[0017] Further, the floating swing arm is provided in an L-shaped structure.

[0018] Further, the adjusting rod is arranged on the fixed seat through a limiting block. The limiting block can prevent the adjusting rod from rotating along the axis.

[0019] Further, another technical purpose of the present application is to provide a working method of the rotary multi-station belt sander.

[0020] The above technical purpose of the present application is realized by the following technical scheme.

[0021] The application discloses a working method of a rotary multi-station abrasive belt machine, and the working method is characterized in that: when a workpiece is placed in a polishing station by a robot, if there is a posture that cannot be reached by the robot, the main body of the abrasive belt machine is driven by a rotary table of the abrasive belt machine to rotate on a base of the abrasive belt machine, so that the posture that cannot be reached by the robot is compensated, and the workpiece is polished in all directions; when the workpiece is polished, the abrasive belt is driven by a driving wheel to rotate on the driving wheel, a supporting and guiding structure and a tensioning assembly, and the workpiece is polished by the abrasive belt; at least one supporting and guiding structure is arranged on the frame of the abrasive belt machine, so that the abrasive belt forms multiple directions when passing through the driving wheel, the supporting and guiding structure and the tensioning assembly, and the workpiece can be polished according to different processes and different workpieces.

[0022] Further, when the floating unit is installed on the frame of the abrasive belt machine, the floating unit can support the abrasive belt, so that the force acting on the abrasive belt is constant during polishing, and the adjustment process of the floating unit is as follows:

[0023] When it is needed to adjust the swing angle of the floating structure to one end by the adjusting structure, the outer shell is rotated in a forward direction and moves downward along the adjusting rod, the pressing sleeve, the floating sleeve and the return spring are driven by the outer shell to move downward, so that the swing angle of the floating structure to one end is adjusted.

[0024] When it is needed to adjust the swing angle of the floating structure to the other end by the adjusting structure, the pressing sleeve is pulled downward, so that the upper end face gear is disengaged from the lower end face gear, the outer shell is rotated in a reverse direction and moves upward along the adjusting rod, the pressing sleeve is reset by the return spring, so that the upper end face gear is engaged with the lower end face gear, and the swing angle of the floating structure to the other end is adjusted.

[0025] Compared with the prior art, the rotary multi-station abrasive belt machine has the following advantages: after the posture of the robot is fixed, the main body of the abrasive belt machine is driven by the rotary table to rotate on the base of the abrasive belt machine, so that the posture that cannot be reached by the robot is compensated, and the workpiece is polished in all directions; at least one supporting and guiding structure is arranged on the frame of the abrasive belt machine, so that the abrasive belt forms different directions and shapes, and the workpiece can be polished according to different processes and different workpieces, and the application range is improved.

[0026] The roller module and the adjusting module in the tensioning assembly are designed in a modular manner, the installation and replacement of the roller module are facilitated, the adjusting frame is arranged in a Y-shaped structure, the side wall of the adjusting frame has a certain thickness and can be used for tightening the roller screw, when the structure in the roller module needs to be replaced due to damage, the roller connecting seat can be separated from the adjusting frame by tightening the roller screw, and the whole roller module can be replaced, so that the roller module can be quickly installed and replaced.

[0027] The floating unit can realize one-way adjustment of the shell through the upper end face gear and the lower end face gear, that is, the force of the return spring borne by the floating structure is adjusted, and the shell cannot be reversely rotated through the upper end face gear and the lower end face gear in normal working, thereby ensuring that the force of the return spring borne by the floating structure does not change, so that the workpiece force is constant and unchanged. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a perspective structural schematic view of a rotary multi-station abrasive belt machine of an embodiment of the present application.

[0029] Figure 2 is a perspective structural schematic view of an abrasive belt machine body (first abrasive belt walking direction) of an embodiment of the present application.

[0030] Figure 3 is a perspective structural schematic view of an abrasive belt machine body (second abrasive belt walking direction) of an embodiment of the present application.

[0031] Figure 4 is a perspective structural schematic view of an abrasive belt machine body (third abrasive belt walking direction) of an embodiment of the present application.

[0032] Figure 5 is a sectional structural schematic view of a tensioning assembly of an embodiment of the present application.

[0033] Figure 6 is a perspective structural schematic view of a tensioning assembly of an embodiment of the present application.

[0034] Figure 7 is a perspective structural schematic view of a tensioning assembly of an embodiment of the present application.

[0035] Figure 8 is a sectional structural schematic view of a floating unit of an embodiment of the present application.

[0036] Figure 9 is Figure 8 is an enlarged structural schematic view of I part in

[0037] Figure 10 is a perspective structural schematic view of a floating unit of an embodiment of the present application.

[0038] Figure 11 is Figure 10 is an enlarged structural schematic view of II part in

[0039] In the figure: abrasive belt machine body A, abrasive belt machine base B, abrasive belt machine rotary table C,

[0040] abrasive belt machine rack 1, driving wheel 2, abrasive belt 3, support guide structure 4, tensioning assembly 5, floating unit 6,

[0041] supporting guide seat 41, supporting guide wheel 42,

[0042] roller module 51, adjusting module 52, tensioning cylinder 53,

[0043] fixed seat 61, floating structure 62, adjusting structure 63,

[0044] tensioning roller 511, tensioning roller shaft 512, roller shaft screw 513, roller shaft connecting seat 514,

[0045] adjusting seat 521, adjusting frame 522, rotating shaft 523, rotating shaft screw 524, adjusting screw 525, adjusting spring 526, screw support 527, spring support 528, adjusting top block 529,

[0046] floating seat 621, floating shaft 622, floating swing arm 623, floating wheel 624, adjusting hole 625,

[0047] adjusting rod 631, outer shell 632, compression sleeve 633, floating sleeve 634, return spring 635, upper face gear 636, lower face gear 637, floating protrusion 638, limiting block 639. DETAILED DESCRIPTION

[0048] The application will be further described below in conjunction with the drawings and by way of examples, which are intended to explain the application but not to limit the application to the following examples.

[0049] EXAMPLE

[0050] Reference Figures 1 to 11 It is to be understood that the structures, proportions, sizes, etc. shown in the drawings of the present specification are merely intended to facilitate the understanding of the content disclosed in the present specification for those skilled in the art to understand and read, and are not intended to limit the defined conditions under which the present application can be implemented, and therefore do not have substantial technical significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application. At the same time, the terms such as "up", "down", "left", "right", "middle", and "one" in the present specification are only for the convenience of clear description, and are not intended to limit the scope of the present application. The change or adjustment of the relative relationship, without substantially changing the technical content, is also considered as the scope of the present application.

[0051] The rotary multi-station abrasive belt machine in the embodiment comprises an abrasive belt machine base B, an abrasive belt machine rotary table C and at least one abrasive belt machine body A, the abrasive belt machine body A is fixedly arranged on the abrasive belt machine rotary table C, the abrasive belt machine rotary table C is rotationally arranged on the abrasive belt machine base B, so that there are multiple stations in the rotation process of the abrasive belt machine rotary table C, the abrasive belt machine rotary table C is provided with a zero point detection structure for detecting the zero point thereof, the abrasive belt 3 in the multiple abrasive belt machine bodies A arranged on the abrasive belt machine rotary table C can have the same or different trend and shape, that is Figures 2-4 The abrasive belt 3 in the embodiment represents three different abrasive belts 3, the trend and shape of the abrasive belt 3 have multiple types, and the trend and shape of the specific abrasive belt 3 can be set according to the process, shape and other characteristics of the workpiece to be polished, and are not limited to the above listed cases.

[0052] The abrasive belt machine body A in the embodiment comprises an abrasive belt machine rack 1, a driving wheel 2, an abrasive belt 3, a support and guide structure 4, a tensioning assembly 5 and a floating unit 6, the driving wheel 2, the support and guide structure 4, the tensioning assembly 5 and the floating unit 6 are all arranged on the abrasive belt machine rack 1, and the driving wheel 2, the support and guide structure 4 and the tensioning assembly 5 are driven by the abrasive belt 3, the number of the support and guide structure 4 is at least one, so that multiple trends can be formed when the abrasive belt 3 passes through the driving wheel 2, the support and guide structure 4 and the tensioning assembly 5, and the floating unit 6 is located between two support and guide structures 4.

[0053] The tensioning assembly 5 in the embodiment comprises a roller module 51, an adjusting module 52 and a tensioning cylinder 53, the roller module 51 is arranged on the adjusting module 52, the adjusting module 52 is arranged on the tensioning cylinder 53, and the tensioning cylinder 53 is arranged on the abrasive belt machine rack 1.

[0054] The roller module 51 in the embodiment comprises a tensioning roller 511, a tensioning roller shaft 512, a roller screw 513 and a roller connecting seat 514, the tensioning roller 511 is arranged on the tensioning roller shaft 512, one roller connecting seat 514 is arranged at each end of the tensioning roller shaft 512, and the roller connecting seat 514 is connected with the adjusting module 52 through the roller screw 513.

[0055] The adjusting module 52 in the embodiment comprises an adjusting seat 521, an adjusting frame 522, a rotating shaft 523, a rotating shaft screw 524, an adjusting screw 525, an adjusting spring 526, a screw support 527 and a spring support 528, the adjusting frame 522 is arranged in a Y-shaped structure, one adjusting top block 529 is arranged on each side of the adjusting frame 522, the rotating shaft 523 is arranged on the adjusting frame 522, and the rotating shaft 523 is connected with the adjusting seat 521 through the rotating shaft screw 524, and the adjusting seat 521 is arranged on the tensioning cylinder 53.

[0056] The screw support 527 and the spring support 528 in the embodiment are both provided in an L-shaped structure, and the screw support 527 and the spring support 528 are provided in an integral structure with the adjusting seat 521. The screw support 527 and the spring support 528 are both arranged on the adjusting seat 521, and the screw support 527 and the spring support 528 are both located on the same side of the adjusting seat 521. The adjusting screw 525 is arranged on the screw support 527, and the adjusting screw 525 is in contact with one adjusting top block 529. One end of the adjusting spring 526 is in abutment with the spring support 528, and the other end of the adjusting spring 526 is in abutment with the other adjusting top block 529.

[0057] During the tightening adjustment process, the tightening assembly 5 drives the adjusting seat 521 and the adjusting frame 522 to rise through the tightening cylinder 53, and tightens the abrasive belt 3 through the tightening roller 511 arranged on the adjusting frame 522. When the adjusting screw 525 is rotated in the forward direction, the adjusting screw 525 is in contact with the adjusting top block 529, so that the adjusting frame 522 can be rotated along the rotating shaft 523 on the adjusting seat 521. When the adjusting screw 525 is rotated in the reverse direction, the adjusting screw 525 is separated from the adjusting top block 529, so that the adjusting frame 522 can be reset through the adjusting spring 526. The screw support 527 and the spring support 528 in the tightening assembly 5 are arranged on the same side of the adjusting seat 521, which has the advantages of convenient adjustment, high adjustment accuracy, etc. Meanwhile, the adjusting frame 522 is arranged in a Y-shaped structure, which can facilitate the installation and replacement of the roller module 51. When the roller module 51 is replaced, the two roller screws 513 are unscrewed, so that the roller connecting seat 514 is separated from the adjusting frame 522, and the replacement of the roller module 51 can be realized.

[0058] The floating unit 6 in the embodiment includes a fixing seat 61, a floating structure 62 in contact with the abrasive belt 3 and supporting the workpiece during the grinding process, and an adjusting structure 63 for adjusting the swing angle of the floating structure 62. The adjusting structure 63 is arranged on the fixing seat 61 and cooperates with the floating structure 62. The fixing seat 61 is arranged on the abrasive belt grinder rack 1.

[0059] The floating structure 62 in this embodiment is arranged between the two supporting guide structures 4, the fixed seat 61 and one supporting guide structure 4 are arranged on the sanding machine frame 1, and the other supporting guide structure 4 is arranged on the fixed seat 61, and the floating structure 62 is arranged on the other supporting guide structure 4. The supporting guide structure 4 includes a supporting guide seat 41 and a supporting guide wheel 42. The supporting guide wheel 42 is arranged on the supporting guide seat 41. When the sanding belt 3 passes around the two supporting guide wheels 42, the sanding belt 3 can form a planar structure. The floating wheel 624 is supported on one side of the plane, and the workpiece can be polished on the other side of the plane. During the polishing process, the floating wheel 624 can support the sanding belt 6 and the workpiece. The supporting guide wheel 42 can be installed on the sanding belt machine frame 1 through the supporting guide seat 41, or the supporting guide wheel 42 can be directly installed on the sanding belt machine frame 1.

[0060] The floating structure 62 in this embodiment includes a floating seat 621, a floating swing arm 623 and a floating wheel 624. The floating swing arm 623 is arranged in an L-shaped structure. The floating swing arm 623 is arranged on the floating seat 621 through a floating shaft 622. One end of the floating swing arm 623 is in contact with the adjustment structure 63. The floating wheel 624 is arranged at the other end of the floating swing arm 623. An adjustment hole 625 is provided on the floating swing arm 623, and the adjustment hole 625 passes through the adjustment rod 631.

[0061] The adjustment structure 63 in this embodiment includes an adjustment rod 631, a shell 632, a clamping sleeve 633, a floating sleeve 634 and a reset spring 635. The shell 632 is provided with an upper end face gear 636, and the clamping sleeve 633 is provided with a lower end face gear 637. The upper end face gear 636 cooperates with the lower end face gear 637.

[0062] When the upper end face gear 636 is meshed with the lower end face gear 637, the housing 632 can rotate in the forward direction, which is a one-way adjustment function. When the upper end face gear 636 is disengaged from the lower end face gear 637, the housing 632 can rotate in the reverse direction. That is, during the normal grinding process, the upper end face gear 636 and the lower end face gear 637 are in a meshing state to prevent the housing 632 from rotating in the reverse direction, so as to ensure that the force of the reset spring 635 on the floating structure 62 is constant and unchanged, thereby ensuring that the contact force between the floating structure 62 and the sanding belt 3 is constant, which is what the present application refers to as "constant force one-way adjustment".

[0063] The adjusting rod 631 in the embodiment is arranged on the fixing seat 61 through the limiting block 639, the shell 632, the pressing sleeve 633, the floating sleeve 634 and the reset spring 635 are all sleeved outside the adjusting rod 631, the shell 632 is threadedly connected with the adjusting rod 631, the pressing sleeve 633 is located in the shell 632, the floating sleeve 634 is located in the pressing sleeve 633, the two ends of the reset spring 635 are respectively abutted with the pressing sleeve 633 and the floating sleeve 634, the floating sleeve 634 is provided with a floating protrusion 638, the floating protrusion 638 is in contact with the floating structure 62, and the floating protrusion 638 is arranged in an arc-shaped structure, so that the contact mode of the floating protrusion 638 with the floating swing arm 623 is linear contact.

[0064] The floating protrusion 638 and the floating swing arm 623 adopt the linear contact mode, so that the contact area of the floating sleeve 634 and the floating swing arm 623 is reduced, the resistance of the floating sleeve 634 to the swing of the floating swing arm 623 is smaller, and the rotation of the floating swing arm 623 along the floating shaft 622 is more smooth.

[0065] It should be noted that the "one-way adjustment" in the application refers to that, in the normal working state, when the two ends of the reset spring 635 abut against the pressing sleeve 633 and the floating sleeve 634 respectively, at this time, the upper end face gear 636 and the lower end face gear 637 are in meshing with each other, in this state, the shell 632 can only rotate in the positive direction and cannot rotate in the reverse direction, that is, "one-way adjustment", and the shell 632 cannot rotate in the reverse direction in any state, when the pressing sleeve 633 is pulled to make the upper end face gear 636 and the lower end face gear 637 disengage, at this time, the shell 632 can rotate in the reverse direction.

[0066] The working method of the rotary multi-station abrasive belt machine is as follows: the workpiece is placed on the polishing station by the robot, if there is a posture that cannot be reached by the robot after the workpiece is placed on the polishing station, the abrasive belt machine main body A is driven by the abrasive belt machine rotary table C to rotate on the abrasive belt machine base B, so as to compensate for the posture that cannot be reached by the robot, so as to realize all-around polishing of the workpiece; when the workpiece is polished, the abrasive belt 3 is driven by the driving wheel 2 to rotate circularly on the driving wheel 2, the support and guide structure 4 and the tensioning assembly 5, and the workpiece is polished by the abrasive belt 3; at least one support and guide structure 4 is arranged on the abrasive belt machine rack 1, so that the abrasive belt 3 forms multiple directions when passing through the driving wheel 2, the support and guide structure 4 and the tensioning assembly 5, and then different processes and different workpieces can be polished.

[0067] When the floating unit 6 is installed on the abrasive belt machine rack 1, the abrasive belt 3 can be supported by the floating unit 6, so that the stress of the abrasive belt 3 is constant and unchanged during polishing, and the adjustment process of the floating unit 6 is as follows:

[0068] The floating unit 6 is in normal operation, the two ends of the reset spring 635 are respectively abutted to the pressing sleeve 633 and the floating sleeve 634, so that the floating wheel 624 is in contact with the abrasive belt 3, and when the workpiece is in contact with the abrasive belt 3 in front of the floating wheel 624 during polishing, the floating swing arm 623 is rotated along the floating shaft 622, and the reset spring 635 is compressed, and the floating swing arm 623 is reset through the reset spring 635 after polishing.

[0069] When it is needed to adjust the swing angle of the floating structure 62 to one end through the adjusting structure 63 (which can be understood as adjusting the contact force of the floating wheel 624 with the abrasive belt 3), the outer shell 632 is rotated in the forward direction and moves downward along the adjusting rod 631, and the pressing sleeve 633, the floating sleeve 634 and the reset spring 635 are moved downward together through the outer shell 632, so that the swing angle of the floating structure 62 to one end is adjusted.

[0070] When it is needed to adjust the swing angle of the floating structure 62 to the other end through the adjusting structure 63 (which can be understood as adjusting the contact force of the floating wheel 624 with the abrasive belt 3), the pressing sleeve 633 is pulled downward, so that the upper end face gear 636 is disengaged from the lower end face gear 637, at this time, the outer shell 632 is reversely rotated to move upward along the adjusting rod 631, the pressing sleeve 633 is reset through the reset spring 635, and then the upper end face gear 636 is engaged with the lower end face gear 637, so that the swing angle of the floating structure 62 to the other end is adjusted.

[0071] In addition, it should be noted that the specific embodiments described in the specification, the shape of the components, the name taken, etc. can be different, and the above description in the specification is only an example of the structure of the present application. Any equivalent changes or simple changes made according to the structure, features and principles described in the patent concept of the present application are included in the protection scope of the present application. Those skilled in the art can make various modifications or supplements to the described specific embodiments or use similar ways to replace, as long as they do not deviate from the structure of the present application or exceed the scope defined by the present claims, which shall belong to the protection scope of the present application.

Claims

1. A rotary multi-station belt sander comprising a sander base (B), characterized in that: Also include the belt sander rotating table (C) and the number of at least one belt sander body (A), the belt sander body (A) is fixedly arranged on the belt sander rotating table (C), the belt sander rotating table (C) is rotatably arranged on the belt sander base (B), so that there are multiple stations in the rotating process of the belt sander rotating table (C); The belt sander body (A) includes a belt sander frame (1), a driving wheel (2), a sand belt (3), a support guide structure (4), a tensioning assembly (5) and a floating unit (6), the driving wheel (2), the support guide structure (4), the tensioning assembly (5) and the floating unit (6) are all arranged on the belt sander frame (1), and the driving wheel (2), the support guide structure (4) and the tensioning assembly (5) are driven by the sand belt (3), the number of the support guide structure (4) is multiple, so that multiple trends can be formed when the sand belt (3) passes around the driving wheel (2), the support guide structure (4) and the tensioning assembly (5), the floating unit (6) is located between two support guide structures (4); The tensioning assembly (5) includes a roller module (51), an adjusting module (52) and a tensioning cylinder (53), the roller module (51) is arranged on the adjusting module (52), the adjusting module (52) is arranged on the tensioning cylinder (53), and the tensioning cylinder (53) is arranged on the belt sander frame (1); The floating unit (6) includes a fixed seat (61), a floating structure (62) in contact with the sand belt (3) and supporting the workpiece during polishing, and an adjusting structure (63) for adjusting the swing angle of the floating structure (62); The adjusting structure (63) is arranged on the fixed seat (61), and the adjusting structure (63) cooperates with the floating structure (62), and the fixed seat (61) is arranged on the belt sander frame (1); The floating structure (62) includes a floating seat (621), a floating swing arm (623) and a floating wheel (624), the floating swing arm (623) is arranged on the floating seat (621) through a floating shaft (622), one end of the floating swing arm (623) is in contact with the adjusting structure (63), and the floating wheel (624) is arranged at the other end of the floating swing arm (623); The adjusting structure (63) includes an adjusting rod (631), an outer shell (632), a compression sleeve (633), a floating sleeve (634) and a return spring (635), the adjusting rod (631) is arranged on the fixed seat (61), the outer shell (632), the compression sleeve (633), the floating sleeve (634) and the return spring (635) are all sleeved outside the adjusting rod (631), the outer shell (632) is threadedly connected with the adjusting rod (631), the compression sleeve (633) is located in the outer shell (632), the floating sleeve (634) is located in the compression sleeve (633), the two ends of the return spring (635) are respectively in abutment with the compression sleeve (633) and the floating sleeve (634), and the floating sleeve (634) is in contact with the floating structure (62). An upper end face gear (636) is provided on the housing (632), a lower end face gear (637) is provided on the compression sleeve (633), the upper end face gear (636) cooperates with the lower end face gear (637), a floating protrusion (638) is provided on the floating sleeve (634), the floating protrusion (638) contacts the floating structure (62), and the floating protrusion (638) is provided in an arc-shaped structure.

2. The rotary multi-station belt sander of claim 1, wherein: The roller module (51) comprises a tensioning roller (511), a tensioning roller (512), a roller screw (513) and a roller connecting seat (514); the tensioning roller (511) is arranged on the tensioning roller (512); a roller connecting seat (514) is provided at each end of the tensioning roller (512); and the roller connecting seat (514) is connected to the adjustment module (52) via the roller screw (513).

3. The rotary multi-station belt sander of claim 1, wherein: The adjusting module (52) includes an adjusting seat (521), an adjusting frame (522), a rotating shaft (523), a rotating shaft screw (524), an adjusting screw (525), an adjusting spring (526), ​​a screw bracket (527) and a spring bracket (528), wherein the rotating shaft (523) is arranged on the adjusting frame (522), and the rotating shaft (523) is connected to the adjusting seat (521) via the rotating shaft screw (524), and the adjusting seat (521) is arranged on the tensioning cylinder (53). The screw support (527) and the spring support (528) are both arranged on the adjustment seat (521), and an adjustment top block (529) is respectively provided on both sides of the adjustment frame (522). The adjustment screw (525) is arranged on the screw support (527), and the adjustment screw (525) contacts one adjustment top block (529). One end of the adjustment spring (526) abuts against the spring support (528), and the other end of the adjustment spring (526) abuts against the other adjustment top block (529).

4. A method of operating a rotary multi-station belt sander as claimed in any one of claims 1 to 3 by a robot to position a workpiece in a grinding station, characterised in that: When the workpiece is placed at the grinding station and there is a posture that the robot cannot reach, the grinding belt machine body (A) is driven to rotate on the grinding belt machine base (B) by the grinding belt machine rotating table (C), thereby compensating for the posture that the robot cannot reach, so as to achieve all-round grinding of the workpiece; when grinding the workpiece, the grinding belt (3) is driven by the driving wheel (2) to circulate on the driving wheel (2), the support guide structure (4) and the tensioning component (5), and the workpiece is ground by the grinding belt (3); by arranging at least one support guide structure (4) on the grinding belt machine frame (1), the grinding belt (3) can form multiple directions when it passes around the driving wheel (2), the support guide structure (4) and the tensioning component (5), thereby grinding for different processes and different workpieces.

5. The working method of a rotary multi-station belt sander according to claim 4, characterized in that: When the floating unit (6) is installed on the sanding machine frame (1), the sanding belt (3) can be supported by the floating unit (6) so that the force on the sanding belt (3) is constant and unchanged during the sanding process. The adjustment process of the floating unit (6) is as follows: When it is needed to adjust the swing angle of the floating structure (62) to one end through the adjusting structure (63), the outer shell (632) is rotated forward and moved downward along the adjusting rod (631), the compression sleeve (633), the floating sleeve (634) and the reset spring (635) are moved downward together through the outer shell (632), and the swing angle of the floating structure (62) to one end is adjusted. When it is needed to adjust the swing angle of the floating structure (62) to the other end through the adjusting structure (63), the compression sleeve (633) is pulled downward, the upper end face gear (636) is disengaged from the lower end face gear (637), the outer shell (632) is reversely rotated and moved upward along the adjusting rod (631), the compression sleeve (633) is reset through the reset spring (635), the upper end face gear (636) is engaged with the lower end face gear (637), and the swing angle of the floating structure (62) to the other end is adjusted.

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