Abrasive belt grinding device

Abstract

The utility model discloses an abrasive belt polishing device which is used for polishing a welding seam arranged in the first direction and comprises a rack, a first abrasive belt and a second abrasive belt. The abrasive belt grinding mechanism comprises a belt wheel assembly and an annular abrasive belt, the belt wheel assembly is arranged on the machine frame, the belt wheel assembly is sleeved with the abrasive belt so that the abrasive belt can rotate under driving of the belt wheel assembly, the included angle between the rotating axis of the abrasive belt and the first direction ranges from 0 degree to 30 degrees, and the belt wheel assembly comprises an elastic belt pressing wheel. The elastic belt pressing wheel is used for elastically pressing a part of the abrasive belt to the weld joint. According to the abrasive belt grinding device, the effective use width of the abrasive belt is enlarged, the utilization rate of the abrasive belt is remarkably increased, consumption of the abrasive belt is reduced, the grinding cost of a weld joint is reduced, the service life of the pinch roller is prolonged, the grinding efficiency of the abrasive belt grinding device to the weld joint is improved, meanwhile, abrasion of the abrasive belt to base metal is remarkably reduced, and the service life of the abrasive belt is prolonged. And therefore, effective protection of the base metal on the two sides of the weld joint is achieved, and the universality of the abrasive belt grinding device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the container technical field generally, concretely relates to welding seam polishing, especially relates to abrasive belt polishing device. BACKGROUND

[0002] In the container production industry such as tank, the welding operation between metal plates will be involved, and the welding seam polishing treatment needs to be carried out after the welding between metal plates is completed. For example, the front and back of the welding seam need to be polished flat after the head round plate of the tank is welded. The existing welding seam polishing equipment is mostly abrasive belt polishing equipment, which includes abrasive belt for polishing welding seam and belt wheel assembly. The abrasive belt is installed on the belt wheel assembly, and the belt wheel assembly is usually composed of multiple belt wheels with parallel axes. During the polishing process of the welding seam, the abrasive belt moves along the direction of the welding seam, and the axis of the belt wheel is perpendicular to the direction of the welding seam, that is, the rotation axis of the abrasive belt is perpendicular to the welding seam.

[0003] However, the above-mentioned existing abrasive belt polishing equipment has the following problems:

[0004] 1. Since the width of the abrasive belt is greater than the width of the welding seam, and the width of the abrasive belt is usually more than twice the width of the welding seam, the part of the abrasive belt in contact with the welding seam is greatly worn, and the part of the abrasive belt not in contact with the welding seam is wasted, resulting in low utilization rate and high wear of the abrasive belt, increasing the cost of welding seam polishing;

[0005] 2. During the polishing process, the contact force between the abrasive belt and the base material on both sides of the welding seam is large, resulting in obvious base material grinding thinning when grinding the welding seam, so that the abrasive belt polishing equipment cannot be applied to the welding seam polishing scene without damaging the base material, limiting the universality of the abrasive belt polishing equipment;

[0006] 3. For the belt wheel supporting the contact between the abrasive belt and the welding seam, the middle part is subjected to greater stress than the two sides, resulting in faster wear of the middle part, which has the disadvantages of low utilization rate and high wear, increasing the operating cost of the polishing equipment. INVENTION CONTENTS

[0007] In view of the above-mentioned defects or shortcomings in the prior art, it is desirable to provide an abrasive belt polishing device.

[0008] The present application provides an abrasive belt polishing device for polishing a welding seam arranged in a first direction, comprising:

[0009] a rack;

[0010] At least one belt sander mechanism, the belt sander mechanism comprising a pulley assembly and a looped abrasive belt, the pulley assembly being arranged on the frame, the abrasive belt being sleeved on the pulley assembly to rotate under the driving of the pulley assembly, an included angle between a rotation axis of the abrasive belt and the first direction being 0°-30°, wherein the pulley assembly comprises an elastic pressure pulley, the elastic pressure pulley being used for elastically pressing a part of the abrasive belt on the weld.

[0011] Further, the rotation axis of the abrasive belt is parallel to the first direction.

[0012] Further, the elastic pressure pulley is movably arranged along a direction close to or away from the abrasive belt.

[0013] Further, the belt sander mechanism comprises a first linear actuator arranged on the frame, a driving end of the first linear actuator being connected with the elastic pressure pulley to drive the elastic pressure pulley to move.

[0014] Further, the pulley assembly further comprises a main pulley, a tension pulley and at least two guide pulleys, the two guide pulleys being respectively arranged on two sides of the elastic pressure pulley, and a bottom end of the guide pulley being higher than a bottom end of the elastic pressure pulley, the main pulley and the tension pulley being arranged above the two guide pulleys, wherein at least one guide pulley is movably arranged along a direction close to or away from the abrasive belt.

[0015] Further, the frame comprises a frame body and a mounting frame, the mounting frame being movably arranged on the frame body along the first direction, and the pulley assembly being arranged on the mounting frame, wherein the belt sander device further comprises a driving device, the driving device being arranged on the frame body, and the driving device being drivingly connected with the mounting frame to drive the mounting frame to move.

[0016] Further, at least one sliding assembly is arranged between the mounting frame and the frame body, the sliding assembly comprising a first sliding member and a second sliding member slidingly fitted along the first direction, the first sliding member being arranged on the mounting frame and the second sliding member being arranged on the frame body, and the driving device comprising a belt conveying mechanism, a conveying belt of the belt conveying mechanism being connected with the first sliding member.

[0017] Further, a dust cover is further arranged, the dust cover being arranged on the mounting frame and covering an outer periphery of the belt sander mechanism, a bottom portion of the dust cover being provided with an opening, and a part of the elastic pressure pulley and a part of the abrasive belt extending out of the dust cover through the opening.

[0018] Further, the number of the belt sander mechanisms is at least two, and the two belt sander mechanisms are arranged along the first direction.

[0019] Further, in the two belt sander mechanisms, the two abrasive belts have different roughnesses.

[0020] The belt grinding device provided in this application, by setting the angle between the rotation axis of the belt and the first direction to 0° to 30° and using an elastic pressure wheel to elastically press the belt onto the weld, increases the grinding contact area between the belt and the weld in the width direction. Especially when the rotation axis of the belt is parallel to the first direction, it can achieve full contact between the belt and the weld in the width direction, expanding the effective usable width of the belt. This significantly improves the utilization rate of the belt, reduces belt consumption, lowers the grinding cost of the weld, and enhances the grinding efficiency of the belt grinding device on the weld. This improves grinding efficiency and ensures relatively even wear of the pressure roller along the axial direction, extending its service life and reducing the operating cost of the belt sander. Furthermore, the sanding belt, under the pressure of the elastic pressure roller, can cover the entire weld and gradually reduce the pressure between the sanding belt and the weld during grinding. This not only achieves complete removal of the weld but also minimizes the contact force between the sanding belt and the base material when grinding the bottom of the weld, significantly reducing wear on the base material and effectively protecting the base material on both sides of the weld, thus expanding the versatility of the belt sander. Attached Figure Description

[0021] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0022] Figure 1 This is a front view schematic diagram of the belt sanding apparatus provided in the embodiments of this application;

[0023] Figure 2 This is a side view of the belt sanding apparatus provided in the embodiments of this application;

[0024] Figure 3 This is a schematic diagram of the belt abrasive grinding device provided in this application grinding a flat workpiece.

[0025] Figure 4 This is a schematic diagram of the belt abrasive grinding device provided in this application grinding a cylindrical workpiece.

[0026] Figure 5 This is a schematic diagram of a belt abrasive device used for abrasive grinding of a flat workpiece according to another embodiment of this application.

[0027] Figure 6 This is a schematic diagram of a belt abrasive device used for grinding cylindrical workpieces, according to another embodiment of this application. Detailed Implementation

[0028] The application will be described in further detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related utility model and not limit the utility model. In addition, it should be noted that, for the convenience of description, only parts related to the utility model are shown in the drawings.

[0029] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0030] Please refer to the drawings Figures 1-2The embodiment of the present application provides a grinding device of abrasive belt 210, which is used for grinding a weld 10 arranged along a first direction. The grinding device of the abrasive belt comprises a rack 100 and a grinding mechanism of the abrasive belt arranged on the rack 100, and the grinding mechanism of the abrasive belt is at least one. The grinding mechanism of the abrasive belt comprises a belt wheel assembly arranged on the rack 100 and a ring-shaped abrasive belt 210, the abrasive belt 210 is sleeved on the belt wheel assembly, that is, the belt wheel assembly is located on the inner side of the abrasive belt 210 and the abrasive belt 210 rotates under the drive of the belt wheel assembly. The included angle between the rotation axis of the abrasive belt and the first direction is 0°-30°. Compared with the prior art, the rotation axis of the abrasive belt 210 is perpendicular to the direction of the weld 10, the grinding contact size of the abrasive belt 210 with the weld 10 in the width direction is increased, especially when the rotation axis of the abrasive belt 210 is parallel to the first direction, the grinding contact of the abrasive belt 210 with the weld 10 in the width direction can be achieved, the effective use width of the abrasive belt 210 is expanded, the utilization rate of the abrasive belt 210 is significantly improved, the consumption of the abrasive belt 210 is reduced, the grinding cost of the weld 10 is reduced, the grinding efficiency of the grinding device of the abrasive belt on the weld 10 is improved, the wear degree of the belt wheel in the axial direction is relatively balanced, the service life of the belt wheel is prolonged, and the operation cost of the grinding device of the abrasive belt is reduced. The belt wheel assembly comprises an elastic belt wheel 220, the elastic belt wheel 220 is used for elastically pressing part of the abrasive belt 210 on the weld 10, the abrasive belt 210 can cover the entire weld 10 in the width direction under the pressing action of the elastic belt wheel 220, and the complete grinding removal of the weld 10 is achieved. At the same time, since the weld 10 is usually a small circular arc structure with a high middle and low sides, after the abrasive belt 210 is driven by the elastic belt wheel 220 and contacted with the weld 10, the elastic belt wheel 220 at the contact part is deformed and covers the weld 10. The highest position of the weld 10 bears the maximum pressure of the abrasive belt 210, and the grinding speed is the fastest. During the grinding process, the height of the weld 10 gradually decreases to both sides along the arc, the contact pressure of the weld 10 and the abrasive belt 210 is also gradually reduced, and the grinding speed is also correspondingly reduced, that is, the pressure between the abrasive belt 210 and the weld 10 gradually decreases during the grinding process, so that the contact force between the abrasive belt 210 and the base material is small when the abrasive belt 210 grinds the bottom of the weld 10, the wear of the base material caused by the abrasive belt 210 is significantly reduced, the effective protection of the base material on both sides of the weld 10 is achieved, and the universality of the grinding device of the abrasive belt is expanded.

[0031] The axis of the belt wheel in the belt wheel assembly and the width direction of the abrasive belt 210 are usually consistent with the rotation axis of the abrasive belt 210, that is, the included angle between the axis of the belt wheel and the first direction and the width direction of the abrasive belt 210 is 0°-30°. Based on the view angle as the reference view angle, the first direction is the left-right direction. Figure 1 The view angle is the reference view angle, and the first direction is the left-right direction.

[0032] The elastic pressure belt wheel 220 has at least an elastic layer on the outer periphery, and the abrasive belt 210 is elastically pressed by the elastic layer. The elastic pressure belt wheel 220 can be, but is not limited to, a rubber polishing wheel.

[0033] The angle between the rotation axis of the abrasive belt and the first direction is 0°-30°, which specifically includes that the rotation axis of the abrasive belt 210 is relatively inclined to the first direction, and the rotation axis of the abrasive belt 210 is parallel to the first direction. When the rotation axis of the abrasive belt 210 is relatively inclined to the first direction, the angle between the rotation axis of the abrasive belt 210 and the first direction is 0°-30°, specifically, for example, 5°, 15°, etc. Preferably, the rotation axis of the abrasive belt 210 is parallel to the first direction, and at this time, the contact size of the abrasive belt 210 with the weld 10 in the width direction reaches the maximum.

[0034] Please refer to the accompanying drawings Figures 3-4 The abrasive belt polishing device provided by the embodiment can polish the weld on the flat workpiece 20 and the cylindrical workpiece 30.

[0035] In some embodiments of the present application, the elastic pressure belt wheel 220 is movably arranged along the direction close to or away from the abrasive belt 210, so as to meet the pressure adjustment requirement of the abrasive belt 210 on the weld 10 and the polishing requirement of the abrasive belt 210 on the weld 10 with different heights, and improve the practicability of the abrasive belt polishing device.

[0036] Preferably, the abrasive belt polishing mechanism comprises a first linear actuator 260 arranged on the rack 100, and the driving end of the first linear actuator 260 is connected with the elastic pressure belt wheel 220 to drive the elastic pressure belt wheel 220 to move, so as to realize the automatic adjustment of the position of the elastic pressure belt wheel 220. The first linear actuator 260 can be, but is not limited to, a pneumatic cylinder, an electric push rod or a hydraulic cylinder.

[0037] In some embodiments of the present application, the pulley assembly further comprises a main pulley 250, a tension pulley 240, and at least two guide pulleys 230, the two guide pulleys 230 are respectively located on both sides of the elastic pressing pulley 220, and the bottom end of the guide pulley 230 is higher than the bottom end of the elastic pressing pulley 220, the main pulley 250 and the tension pulley 240 are both located above the two guide pulleys 230, and the abrasive belt 210 is sequentially wound around the main pulley 250, the tension pulley 240, one of the guide pulleys 230, the elastic pressing pulley 220, and the other guide pulley 230. The tension pulley 240 can be adjusted in position to adjust the tension of the abrasive belt 210 on the pulley assembly to ensure reliable operation of the abrasive belt 210. At least one guide pulley 230 is movably arranged in a direction close to or away from the abrasive belt 210 to facilitate replacement of the abrasive belt 210. The rack 100 is provided with a first driving motor, and the first driving motor is in driving connection with the main pulley 250 to drive the main pulley 250 to rotate. The guide pulley 230 can be driven by a linear actuator such as a pneumatic cylinder or an electric push rod.

[0038] It should be understood that the pulley assembly is not limited to the above, for example but not limited to: please refer to the attached Figures 5-6 , the pulley assembly comprises a main pulley 250 and an elastic pressing pulley 220, and the main pulley 250 is located above the elastic pressing pulley 220.

[0039] In some embodiments of the present application, the rack 100 comprises a rack body and a mounting rack 120, the mounting rack 120 is movably arranged in the first direction on the rack body, and the pulley assembly is arranged on the mounting rack 120, so that the abrasive belt polishing mechanism can move in the first direction to complete polishing of the entire weld 10.

[0040] Preferably, at least one sliding assembly is arranged between the mounting rack 120 and the rack body, the sliding assembly comprises a first sliding member and a second sliding member which are slidingly matched in the first direction, the first sliding member is arranged on the mounting rack 120 and the second sliding member is arranged on the rack body. In this way, the movement of the abrasive belt polishing mechanism is smoother, which helps to improve the polishing quality. The first sliding member can be a sliding block 270, and the second sliding member can be a sliding rail 280. The first driving motor is mounted on the mounting rack 120.

[0041] Preferably, the rack body comprises two upright columns 111 and a cross beam 112, and the cross beam 112 is mounted on the top of the two upright columns 111. The mounting rack 120 is mounted on the cross beam 112.

[0042] In some embodiments of the present application, the abrasive belt polishing device further comprises a driving device, the driving device is arranged on the rack body, and the driving device is in driving connection with the mounting rack 120 to drive the mounting rack 120 to move.

[0043] Preferably, the driving device comprises a belt conveying mechanism, a conveying belt of the belt conveying mechanism being connected with the first sliding member. The belt conveying mechanism comprises a second driving motor 291, a speed reducer 292, a synchronous belt 293, a driving wheel 294 and a driven wheel 295, the driving wheel 294 and the driven wheel 295 being arranged at the frame body in a first direction, the synchronous belt 293 being sleeved on the driving wheel 294 and the driven wheel 295, the second driving motor 291 being in driving connection with the speed reducer 292, the speed reducer 292 being in driving connection with the driving wheel 294, and the synchronous belt 293 being fixedly connected with the mounting frame 120 or the sliding block 270.

[0044] It should be understood that the driving device is not limited to the above, and can also be a pneumatic cylinder, an electric push rod, etc.

[0045] In some embodiments of the present application, the number of the abrasive belt grinding mechanisms is at least two, and the two abrasive belt grinding mechanisms are arranged in the first direction. The two abrasive belt grinding mechanisms grind the weld 10 together, thereby improving the grinding efficiency of the weld 10.

[0046] Preferably, in the two abrasive belt grinding mechanisms, the two abrasive belts 210 have different roughnesses. For example, the two abrasive belt grinding mechanisms comprise a first abrasive belt grinding mechanism 200 and a second abrasive belt grinding mechanism 300 arranged in the first direction, the first abrasive belt grinding mechanism 200 first grinds the weld 10, and the second abrasive belt grinding mechanism 300 further grinds the weld 10 ground by the first abrasive belt grinding mechanism 200. The roughness of the abrasive belt 210 in the first abrasive belt grinding mechanism 200 is greater than that of the abrasive belt 210 in the second abrasive belt grinding mechanism 300, the first abrasive belt grinding mechanism 200 is used for rapidly grinding the weld 10, and the second abrasive belt grinding mechanism 300 is used for grinding the surface of the weld 10 to polish the weld 10.

[0047] In some embodiments of the present application, a dust cover is further included, the dust cover being arranged at the mounting frame 120 and covering the outer periphery of the abrasive belt grinding mechanism, the bottom of the dust cover being provided with an opening, and part of the elastic belt pressing wheel 220 and part of the abrasive belt 210 extending out of the dust cover through the opening. The dust cover can prevent the dust generated by grinding from being dispersed, thereby reducing the harm of dust pollution to the body of the worker.

[0048] Preferably, a dust collector can be arranged in the dust cover, and the dust collector is used for collecting the dust, thereby improving the environmental protection performance of the abrasive belt grinding device.

[0049] In some embodiments of the present application, the abrasive belt grinding device further comprises a carrier, and the carrier is used for carrying the workpiece to be ground.

[0050] The carrier includes a main carrier 410 and two side carriers 420 respectively arranged on both sides of the main carrier 410, the main carrier 410 can be a frame structure and is arranged to extend along a first direction, and the side carrier 420 includes a side carrier rod 422 and two lifting mechanisms 421 arranged at intervals along the first direction, the two lifting mechanisms 421 are connected with the side carrier rod 422 to drive the side carrier rod 422 to lift, thereby meeting the polishing operation requirements of workpieces of different sizes.

[0051] The carrier can carry the flat workpiece 20 and the cylindrical workpiece 30, the flat workpiece 20 can be carried by the main carrier 410, and the cylindrical workpiece 30 can be carried by the main carrier 410 and the two side carriers 420. The lifting mechanism 421 can be, but is not limited to, a pneumatic cylinder, an electric push rod, a hydraulic cylinder, etc.

[0052] It should be understood that the above-mentioned terms such as "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application; the orientation terms "inner" and "outer" refer to the inner and outer of the contour of each component itself. In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features.

[0053] For the convenience of description, spatial relative terms such as "above", "upper", "on", "upper surface", "upper", etc. can be used to describe the spatial positional relationship of one device or feature with other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the devices described in the drawings. For example, if the devices in the drawings are inverted, the device described as "above" or "above" other devices or structures will be positioned "below" or "below" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned 90 degrees or in other orientations in other different ways, and the spatial relative description used herein is interpreted accordingly.

[0054] The above description is merely the preferred embodiments of the present application and the technical principles used. It should be understood by those skilled in the art that the scope of the utility model involved in the present application is not limited to the technical solutions formed by the specific combinations of the technical features described above, and should also cover other technical solutions formed by any combinations of the technical features described above or their equivalent features without departing from the concept of the utility model. For example, the technical solutions formed by replacing the above features with the technical features disclosed in the present application (but not limited to) having similar functions.

Claims

1. A belt abrasive grinding device for grinding welds arranged along a first direction, characterized in that, include: frame; At least one belt sanding mechanism, the belt sanding mechanism including a pulley assembly and an annular sanding belt, the pulley assembly being disposed on the frame, the sanding belt being sleeved on the pulley assembly to rotate under the drive of the pulley assembly, the rotation axis of the sanding belt making an angle of 0° to 30° with the first direction, wherein the pulley assembly includes an elastic pressure roller, the elastic pressure roller being used to elastically press a portion of the sanding belt onto the weld.

2. The belt sanding device according to claim 1, characterized in that, The rotation axis of the sanding belt is parallel to the first direction.

3. The belt sanding device according to claim 1, characterized in that, The elastic pressure roller is movably disposed in a direction that is close to or away from the abrasive belt.

4. The belt sanding device according to claim 3, characterized in that, The belt sanding mechanism includes a first linear driver disposed on the frame, the drive end of the first linear driver being connected to the elastic pressure roller to drive the elastic pressure roller to move.

5. The belt sanding device according to claim 1, characterized in that, The pulley assembly further includes a main pulley, a tension pulley, and at least two guide pulleys. The two guide pulleys are located on both sides of the elastic pressure pulley, and the bottom of the guide pulley is higher than the bottom of the elastic pressure pulley. The main pulley and the tension pulley are both located above the two guide pulleys. At least one of the guide pulleys is movably arranged in a direction close to or away from the abrasive belt.

6. The belt sanding device according to claim 1, characterized in that, The frame includes a frame body and a mounting frame. The mounting frame is movably disposed on the frame body along the first direction. The pulley assembly is disposed on the mounting frame. The belt sanding device further includes a drive device disposed on the frame body. The drive device is drivenly connected to the mounting frame to drive the mounting frame to move.

7. The belt sanding device according to claim 6, characterized in that, At least one sliding assembly is provided between the mounting bracket and the frame body. The sliding assembly includes a first sliding member and a second sliding member that slide in the first direction. The first sliding member is disposed on the mounting bracket and the second sliding member is disposed on the frame body. The driving device includes a belt conveyor mechanism, and the conveyor belt of the belt conveyor mechanism is connected to the first sliding member.

8. The belt sanding device according to claim 6, characterized in that, It also includes a dust cover, which is disposed on the mounting frame and covers the outer periphery of the belt sanding mechanism. The bottom of the dust cover has an opening, and part of the elastic pressure roller and part of the sanding belt extend out of the dust cover through the opening.

9. The belt abrasive grinding device according to any one of claims 1-8, characterized in that, The number of belt sanding mechanisms is at least two, and the two belt sanding mechanisms are arranged along the first direction.

10. The belt sanding device according to claim 9, characterized in that, In the two belt abrasive grinding mechanisms, the roughness of the two belts is different.

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