Cutting device and hydrogen storage tank liner welding cutting device

Abstract

The utility model belongs to work piece cutting technical field, solve the deficiency that the cutting of prior art for work piece exists high accuracy, high quality is not high, provide cutting device and hydrogen storage tank inner bag welding cutting equipment, cutting device includes: reciprocating support, including first guide foot and branch shift board, cutting knife subassembly, support on branch shift board, cutting knife subassembly includes cutting knife rest, cutting knife motor and cutting knife, cutting knife motor drives cutting knife rotation in the rest, support board is equipped with first guide rail, displacement motor, support on support board, displacement motor is connected with reciprocating support drive to drive first guide foot moves along first guide rail, work motor, support on branch shift board, work motor is connected with cutting knife rest drive, and the second guide foot is equipped on cutting knife rest, and the second guide rail is equipped on branch shift board, and work motor drives mobile cutting knife, and cutting knife carries out cutting to the work piece to be cut of rotation part. The utility model has the advantages of accuracy, quality for work piece cutting.

Description

Technical Field

[0001] This utility model relates to the field of workpiece cutting technology, and in particular to cutting devices and welding cutting equipment for hydrogen storage tank liners. Background Technology

[0002] Sometimes cutting is required during the processing of workpieces. Taking a tank as an example, after the tank is welded, the weld seam needs to be cut. Existing cutting devices cannot accurately guarantee the cutting thickness of the cutter acting on the weld seam, resulting in inaccurate cutting amount and low cutting quality. In addition, chips are generated during the cutting process. However, existing cutting devices lack timely collection of chips. Not only do scattered chips easily pollute the environment, but chips accumulated in moving parts of the cutting device, such as rotating shafts, will adversely affect the normal operation and lifespan of the moving parts.

[0003] In summary, existing technologies suffer from low accuracy and low quality in workpiece cutting. Utility Model Content

[0004] This invention addresses the shortcomings of existing technologies in workpiece cutting, namely low accuracy and poor quality. To achieve one objective of this invention, a cutting device is provided, comprising: a reciprocating support, including a first guide foot and a support plate; a cutting assembly supported on the support plate, the cutting assembly including a cutting holder, a cutting motor, and a cutting blade, the cutting motor driving the cutting blade located in the cutting holder to rotate; a support plate, having a first guide rail that slides with the first guide foot; a displacement motor supported on the support plate, the displacement motor being driven and connected to the reciprocating support to drive the first guide foot to move along the first guide rail; and a power feed motor supported on the support plate, the power feed motor being driven and connected to the cutting holder, the cutting holder having a second guide foot, the support plate having a second guide rail, the power feed motor driving the second guide foot to move the cutting blade along the second guide rail, the cutting blade being used to cut the rotating workpiece under the drive of the power feed motor.

[0005] Furthermore, the cutting device also includes a pair of guide mechanisms located opposite each other on both sides of the cutter holder. The guide mechanism includes a support plate and a floating guide wheel. The floating guide wheel is rotatably connected to the support plate. The floating guide wheel rotates and contacts the workpiece before the cutter and determines the cutting amount of the cutter on the part to be cut.

[0006] Furthermore, the cutter holder includes a dust collection hood, and the cutting device also includes a vacuum cleaner. The cutter is located in the dust collection hood, and the vacuum cleaner is connected to the dust collection hood and is used to absorb and collect the debris generated by the cutter during cutting.

[0007] Furthermore, the outer wall of the dust hood is provided with a horizontal brush group including multiple horizontal brushes and a vertical brush group including multiple vertical brushes, with the horizontal brushes and vertical brushes abutting against the adjacent parts of the part to be cut in the horizontal and vertical directions, respectively.

[0008] Furthermore, the horizontal brush group extends at an angle relative to the horizontal plane, while the vertical brush group extends in a vertical direction. The horizontal brush group guides the debris into the dust hood in an inclined direction.

[0009] Furthermore, the reciprocating support includes a reciprocating seat and a positioning plate. The bottom surface of the reciprocating seat is provided with a pair of first guide feet, and a pair of first guide rails are provided accordingly. The positioning plate is provided with a second guide rail, and the side of the support plate facing the positioning plate is provided with a second guide foot. By adjusting the sliding position of the second guide foot on the second guide rail, the floating guide wheel rotates and abuts the workpiece before the cutter.

[0010] Furthermore, the displacement motor and the power feed motor are arranged in parallel relative to each other, and the cutter motor is arranged perpendicularly relative to the displacement motor and the power feed motor respectively. The displacement motor is connected to the support plate drive between a pair of first guide rails.

[0011] To achieve another objective of this utility model, a welding and cutting device for hydrogen storage tank liners is provided, comprising a clamping and rotating device and any of the above-mentioned cutting devices. The workpiece is a hydrogen storage tank liner obtained by welding, the part to be cut is a weld, and the cutting device is used to cut the weld on the hydrogen storage tank liner rotated by the clamping and rotating device.

[0012] Furthermore, the clamping and rotating device includes: a support frame, comprising a hollow support cylinder and a support ring protruding from the outer periphery of one end of the support cylinder, with the inner liner of the hydrogen storage tank spaced apart within the support cylinder; multiple grippers, arranged circumferentially on the support ring and movable radially along the support ring, each gripper having a clamping surface facing the central axis of the support ring, and each gripper's clamping surface having a conformal shape adapted to the inner liner of the hydrogen storage tank; a drive ring connected to the support ring; a drive mechanism that drives the drive ring to rotate to drive each gripper to move closer or further away from the support ring radially and relative to the central axis of the support ring; a rotating ring fixedly connected to the support cylinder; and a rotation mechanism that drives the rotating ring to rotate, thereby enabling the rotating ring to drive the workpiece held by the grippers to rotate around the central axis of the support ring. The outer ring of the rotating ring is equipped with a driven gear; the rotating mechanism includes a rotating motor and a driving gear, the driving gear meshes with the driven gear, the rotating motor drives the driving gear to rotate to drive the support ring to rotate, so that multiple grippers rotate synchronously with the support ring; when the weld is being cut, the grippers of each clamping device move closer, so that the clamping surface of each gripper forms a clamping surface for fitting against the outer surface of the inner liner of the hydrogen storage tank and holding the inner liner of the hydrogen storage tank, the rotating motor drives the inner liner of the hydrogen storage tank to rotate, and the displacement motor and the power advance motor drive the cutter to approach the inner liner of the hydrogen storage tank, and the cutter, driven by the cutter motor, cuts the part of the weld that exceeds the outer diameter of the inner liner of the hydrogen storage tank.

[0013] Furthermore, the drive mechanism includes a drive cylinder, a drive gear, a rack, a mounting plate, and a fixing plate. The rack is fixed to the fixing plate, the fixing plate is fixed to the drive ring, the mounting plate is fixed to the support ring, and the drive cylinder is mounted on the mounting plate. The clamping and rotating device also includes a guide mechanism with the same number of grippers. The grippers include a snap-fit ​​plate and a force transmission plate. The snap-fit ​​plate has a snap-fit ​​surface. A pair of guide blocks are fixed at intervals to the side of the support ring facing away from the drive ring. The slider is fixed to the side of the force transmission plate facing the support ring and located between the pair of guide blocks. A cam follower is connected to the slider. A guide groove is provided in the drive ring and relative to the drive ring. The radial direction is inclined. The guiding mechanism includes a slider, a pair of guide blocks, a guide groove and a cam follower. The driving cylinder is connected to the driving gear and drives it to rotate forward or backward. The driving gear drives the rack to move, thereby driving the driving ring to rotate forward or backward. Then, the cam follower drives the slider to slide between the pair of guide blocks under the action of the guide groove, thereby causing each gripper to move closer or farther away from the central axis of the support ring. When each gripper moves closer, the clamping surface of each gripper holds the inner liner of the hydrogen storage tank. When each gripper moves farther away, the inner liner of the hydrogen storage tank held by each gripper can be released.

[0014] The beneficial effects of this utility model are as follows:

[0015] This utility model of cutting device and hydrogen storage tank inner liner welding cutting equipment utilizes a displacement motor to drive a reciprocating support to move precisely to the desired cutting position, and is particularly suitable for situations where the cutting thickness of the cutter acting on the weld is accurately guaranteed, thus providing the advantages of high accuracy and good quality in cutting workpieces. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments of this utility model will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, and these are all within the protection scope of this utility model.

[0017] Figure 1 This is a schematic diagram of the overall structure of the cutting device according to an embodiment of the present utility model;

[0018] Figure 2 This is a partial structural schematic diagram of the cutting device according to an embodiment of the present utility model;

[0019] Figure 3 This is a schematic diagram of the overall structure of the welding and cutting equipment for the inner liner of the hydrogen storage tank according to an embodiment of the present invention;

[0020] Figure 4 This is a front view of the overall structure of a portion of the clamping and rotating device of the welding and cutting equipment for the inner liner of a hydrogen storage tank according to an embodiment of the present utility model.

[0021] Figure 5 This is a rear-view main view of the overall structure of a portion of the clamping and rotating device of the welding and cutting equipment for the inner liner of a hydrogen storage tank according to an embodiment of the present utility model.

[0022] Figure 6 For corresponding Figure 4 Partial diagram of the explosion;

[0023] Explanation of reference numerals in the attached figures:

[0024] 10. Clamping and rotating device; 11. Support frame; 111. Support cylinder; 1111. Cylinder fixing hole; 112. Support ring; 1121. Stepped groove; 1122. Slide groove; 12. Clamping jaw; 121. Snap-fit ​​plate; 1211. Clamping surface; 122. Force transmission plate; 123. Reinforcing part; 13. Drive ring; 14. Drive mechanism; 141. Drive cylinder; 142. Drive gear; 143. Rack; 144. Mounting plate; 145. Fixing plate; 15. Guide mechanism; 151. Slider; 1511. Protrusion; 152. Guide block; 153. Guide groove; 154. Cam follower; 16. Guide rotating mechanism; 161. Guide groove; 162. Guide column; 163. Limiting plate; 17. Rotating ring ; 171. Driven gear; 18. Rotating mechanism; 181. Rotating motor; 182. Driving gear; 30. Cutting device; 31. Reciprocating support; 311. First guide foot; 312. Support plate; 313. Second guide rail; 314. Reciprocating seat; 315. Positioning plate; 316. Second guide rail; 317. Second guide foot; 32. Cutting blade assembly; 321. Cutting blade holder; 322. Second guide foot; 323. Dust hood; 324. Cutting blade motor; 325. Cutting blade; 33. Support plate; 331. First guide rail; 34. Displacement motor; 35. Power motor; 36. Rotating mechanism; 361. Support plate; 362. Floating guide wheel; 37. Horizontal brush group; 38. Longitudinal brush group. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. In the description of this utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element limited by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. Unless otherwise specified, embodiments of the present invention and the various features thereof can be combined with each other, all within the protection scope of the present invention.

[0026] refer to Figure 1 and Figure 2As an objective of this utility model, a cutting device 30 is provided, which includes a reciprocating support 31, a cutting blade assembly 32, a support plate 33, a displacement motor 34, and a power feed motor 35. The reciprocating support 31 includes a first guide foot 311 and a support plate 312. The cutting blade assembly 32 is supported on the support plate 312 and includes a cutting blade holder 321, a cutting blade motor 324, and a cutting blade 325. The cutting blade motor 324 drives the cutting blade 325 located in the cutting blade holder 321 to rotate. The support plate 33 is provided with a first guide rail 331 that slides with the first guide foot 311. The displacement motor 34 is supported on the support plate 33 and is drivenly connected to the reciprocating support 31 to drive the first guide foot 311 to move along the first guide rail 331. The power feed motor 35 is supported on the support plate 312 and is driven by the cutter holder 321. The cutter holder 321 is provided with a second guide foot 317, and the support plate 312 is provided with a second guide rail 313. The power feed motor 35 drives the second guide foot 317 to move the cutter 325 along the second guide rail 313. The cutter 325, driven by the power feed motor 35, is used to cut the part to be cut of the rotating workpiece. Therefore, the cutting device 30 provided by this utility model can use the displacement motor 34 to drive the reciprocating bracket 31 to move accurately to the desired cutting position, and is especially suitable for situations where the cutting thickness of the cutter 325 on the weld is accurately guaranteed, thus providing the advantages of high accuracy and good quality in cutting the workpiece.

[0027] Please refer to the reference. Figure 2 Preferably, the cutting device 30 further includes a pair of guide mechanisms 36 located opposite each other on both sides of the cutter holder 321. Each guide mechanism 36 includes a support plate 361 and a floating guide wheel 362. The floating guide wheel 362 is rotatably connected to the support plate 361. The floating guide wheel 362 rotates and contacts the workpiece before the cutter 325, determining the cutting amount of the part to be cut. Because the floating guide wheel 362 can rotate and contact the workpiece before the cutter 325, it prevents the cutter 325 from being accidentally struck by the workpiece and allows it to float with the outer contour of the workpiece during the cutting process, ensuring uniform cutting and consistent cutting amount.

[0028] Please refer to the reference. Figure 2 Preferably, the cutter holder 321 includes a dust collection hood 323, and the cutting device 30 also includes a vacuum cleaner (not shown). The cutter 325 is located in the dust collection hood 323. The vacuum cleaner is connected to the dust collection hood 323 and is used to absorb and collect the debris generated by the cutting work of the cutter 325. Therefore, the dust collection hood 323 can collect the debris in time, avoid the scattered debris from polluting the environment, and also prevent the debris from adversely affecting the normal operation and life of moving parts such as the first guide foot 311, the displacement motor 34, and the power motor 35.

[0029] Please refer to the reference. Figure 2Preferably, a horizontal brush group 37 and a vertical brush group 38 are provided on the outer wall of the dust collection hood 323. The horizontal brush and the vertical brush abut against the adjacent parts of the part to be cut in the horizontal and vertical directions, respectively. In this way, the horizontal brush group 37 and the vertical brush group 38 can not only prevent debris from overflowing, but also enable the dust collection hood 323 to communicate with the outside atmosphere, thus preventing the dust collection hood 323 from failing to form a circulating air path and thus failing to collect debris.

[0030] Please refer to the reference. Figure 2 Specifically, the horizontal brush group 37 extends at an angle relative to the horizontal plane, and the vertical brush group 38 extends in the vertical direction. The horizontal brush group 37 guides the debris into the dust hood 323 in the inclined direction. In this way, the vertical brush group 38 can prevent the debris from overflowing in the vertical direction, and the horizontal brush group 37 can prevent the debris from overflowing in the horizontal direction while also guiding the debris blocked by it and the vertical brush group 38 into the dust hood 323.

[0031] Please refer to the reference. Figure 1 and Figure 2 Specifically, the reciprocating support 31 includes a reciprocating seat 314 and a positioning plate 315. The bottom surface of the reciprocating seat 314 is provided with a pair of first guide feet 311, and a pair of first guide rails 331 are provided accordingly, so that the reciprocating support 31 moves more smoothly on the support plate 33. The positioning plate 315 is provided with a second guide rail 316, and the side of the support plate 312 facing the positioning plate 315 is provided with a second guide foot 317. By adjusting the sliding position of the second guide foot 317 on the second guide rail 316, the floating guide wheel 362 rotates and abuts against the workpiece before the cutter 325, so that the floating guide wheel 362 can be adjusted to roll and abut against the corresponding desired part of the workpiece more accurately.

[0032] Please refer to the reference. Figure 1 Specifically, the displacement motor 34 and the power feed motor 35 are arranged in parallel relative to each other, and the cutter motor 324 is arranged perpendicularly relative to the displacement motor 34 and the power feed motor 35 respectively. This reasonable layout facilitates maintenance and saves space. The displacement motor 34 is driven and connected to the support plate 312 between a pair of first guide rails 331, which is conducive to the compact structure of the cutting device 30.

[0033] Please refer to Figures 3 to 6As another objective of this utility model, it also provides a welding and cutting device for hydrogen storage tank liners, comprising a clamping and rotating device 10 and any one of the above cutting devices 30. The workpiece is a hydrogen storage tank liner (not shown) manufactured by welding. The hydrogen storage tank liner is made of plastic, and the part to be cut is the weld seam. The cutting device 30 is used to cut the weld seam on the hydrogen storage tank liner rotated by the clamping and rotating device 10. Therefore, the welding and cutting device for hydrogen storage tank liners can obtain the beneficial effects brought by any of the cutting devices 30, which will not be elaborated here. The welding and cutting device for hydrogen storage tank liners has the advantage of being able to use the displacement motor 34 to drive the reciprocating support 31 to move precisely to ensure that the cutting blade 325 acts on the weld seam on the hydrogen storage tank liner to achieve the cutting thickness, thus providing the advantages of high accuracy and good quality in cutting the weld seam.

[0034] Please refer to the reference. Figures 4 to 6Specifically, the clamping and rotating device 10 includes: a support frame 11, comprising a hollow support cylinder 111 and a support ring 112 protruding from the outer periphery of one end of the support cylinder 111, with the inner liner of the hydrogen storage tank spaced apart within the support cylinder 111; and a plurality of grippers 12, arranged circumferentially on the support ring 112 and movable radially along the support ring 112, each gripper 12 having a clamping surface 1211 facing the central axis of the support ring 112. It has a contoured shape adapted to the inner liner of the hydrogen storage tank; a drive ring 13 connected to a support ring 112; a drive mechanism 14 that drives the drive ring 13 to rotate so that each gripper 12 moves closer or further away from the support ring 112 along the radial direction of the support ring 112 and relative to the central axis of the support ring 112; a rotating ring 17 fixedly connected to the support cylinder 111; and a rotating mechanism 18 that drives the rotating ring 17 to rotate so that the rotating ring 17 can drive the workpiece held by the gripper 12 to rotate around the central axis of the support ring 112. The outer ring of the rotating ring 17 is provided with a driven gear 171; the rotating mechanism 18 includes a rotating motor 181 and a driving gear 182. The driving gear 182 meshes with the driven gear 171. The rotating motor 181 drives the driving gear 182 to rotate, thereby driving the support ring 112 to rotate, so that multiple grippers 12 rotate synchronously with the support ring 112; when the weld is being cut, the grippers 12 of each clamping device 10 move closer, so that the clamping surface 1211 of each gripper 12 forms a clamping surface for fitting the outer surface of the inner liner of the hydrogen storage tank and holding the inner liner of the hydrogen storage tank. The rotating motor 181 drives the inner liner of the hydrogen storage tank to rotate, and the displacement motor 34 and the power advance motor 35 drive the cutter 325 to approach the inner liner of the hydrogen storage tank, and the cutter 325 cuts the part of the weld that exceeds the outer diameter of the inner liner of the hydrogen storage tank under the drive of the cutter motor 324. The clamping and rotating device 10 not only adaptably clamps the cylindrical surface of the hydrogen storage tank inner liner with different outer diameters by means of multiple clamping jaws 12 that can move closer or further away from the central axis of the support ring 112, but also the clamping surfaces 1211 of each clamping jaw 12 can form an annular clamping surface to clamp multiple parts of the circumferential outer surface of the hydrogen storage tank inner liner, thereby ensuring high stability of workpiece clamping. Furthermore, the rotating mechanism 18 drives the rotating ring 17 to rotate, thereby driving each clamping jaw 12 connected to the support cylinder 111 to rotate synchronously, thus ensuring that the hydrogen storage tank inner liner is stably clamped and rotated, ensuring that the weld of the hydrogen storage tank inner liner is accurately, comprehensively, and uniformly cut, thereby achieving high cutting quality of the hydrogen storage tank inner liner.

[0035] Please refer to the reference. Figure 5Specifically, the drive mechanism 14 includes a drive cylinder 141, a drive gear 142, a rack 143, a mounting plate 144, and a fixing plate 145. The rack 143 is fixed to the fixing plate 145, the fixing plate 145 is fixed to the drive ring 13, the mounting plate 144 is fixed to the support ring 112, and the drive cylinder 141 is mounted on the mounting plate 144. The clamping and rotating device 10 also includes a guide mechanism 15, the same number as the grippers 12. The grippers 12 include a snap-fit ​​plate 121 and a force transmission plate 122. The snap-fit ​​plate 121 has a snap-fit ​​surface 1211. A pair of guide blocks 152 are fixed at intervals to the side of the support ring 112 facing away from the drive ring 13. The slider 151 is fixed to the side of the force transmission plate 122 facing the support ring 112 and located between the pair of guide blocks 152. The cam follower 154 is connected to the slider 151. The shift groove 153 is located in the drive ring 13 and is inclined relative to the radial direction of the drive ring 13. The guide mechanism 15 includes a slider 151, a pair of guide blocks 152, a guide groove 153, and a cam follower 154. The drive cylinder 141 is driven and connected to the drive gear 142 and drives it to rotate forward or backward. The drive gear 142 drives the rack 143 to move, thereby driving the drive ring 13 to rotate forward or backward. Then, under the action of the guide groove 153, the cam follower 154 drives the slider 151 to slide between the pair of guide blocks 152, thereby correspondingly causing each of the grippers 12 to move closer or further away from the central axis of the support ring 112. When each of the grippers 12 has moved closer, the clamping surface 1211 of each of the grippers 12 clamps the inner liner of the hydrogen storage tank. When each of the grippers 12 has moved further away, the inner liner of the hydrogen storage tank clamped by each of the grippers 12 can be released. Therefore, for each gripper 12, the cam follower 154 can convert the circumferential force from the rotation of the drive ring 13 into a radial force on the guide block 152, thus achieving a stable radial displacement of the drive gripper 12 relative to the inner liner of the hydrogen storage tank. This also makes the radial movement of the gripper 12 smoother and more precise, thereby ensuring uniform cutting of the inner liner of the hydrogen storage tank and facilitating the full release of the inner liner of the hydrogen storage tank after cutting.

[0036] Please refer to the reference. Figure 4 Preferably, the force transmission plate 122 is further provided with a reinforcing part 123, which protrudes from both sides of the force transmission plate 122. In this way, the reinforcing part 123 can not only enhance the clamping strength of the clamping surface 1211 of the gripper 12, but also improve the reliability of transmitting the force received by the force transmission plate 122 from the cam follower 154.

[0037] Please refer to the reference. Figure 5Preferably, the other end face of the support cylinder 111 is provided with a plurality of cylinder fixing holes 1111 arranged around the central axis of the support cylinder 111, and the rotating ring 17 is provided with a plurality of ring fixing holes (not shown) arranged around the central axis of the rotating ring 17. Each pair of cylinder fixing holes 1111 and ring fixing holes, for example threaded holes, is fixedly connected to a fastener such as a bolt or stud. In this way, the support cylinder 111 is well fixed to the rotating ring 17 in the circumferential direction at its end, so that the support cylinder 111 and the support ring 112 can reliably receive the rotational force from the rotating ring 17.

[0038] Please refer to the reference. Figure 6 Preferably, the support ring 112 has a pair of communicating stepped grooves 1121 facing the slider 151. The guide block 152 protrudes above the stepped grooves 1121, thus forming a sliding groove 1122 between the guide block 152 and the stepped grooves 1121. The slider 151 includes a pair of protrusions 1511 opposite each other in the radial direction of the support ring 112, and the protrusions 1511 slide in contact with the sliding groove 1122. Since the cam follower 154 can efficiently convert the circumferential force from the drive ring 13 into a radial force on the guide block 152, and by utilizing the sliding contact between the protrusions 1511 of the slider 151 and the sliding groove 1122, the displacement of the slider 151 is more stable and precise, thereby making the radial movement of the gripper 12 more stable and precise.

[0039] Please refer to the reference. Figure 5 Preferably, the number of grippers 12 is set to 2N, where N is a natural number greater than or equal to 4. In this utility model, N is set to 4, that is, the number of grippers 12 is 8. By setting the number of grippers 12 to an even number of more than 8, the workpiece can obtain multiple uniform clamping forces in the circumferential direction, while avoiding damage caused by excessive clamping force on the workpiece due to insufficient clamping surfaces 1211. A guide mechanism 16 is provided between each of the N guide groove groups formed by two adjacent and non-repeating guide grooves 153 on the drive ring 13. The guide groove groups and the guide mechanisms 16 located therebetween are evenly arranged around the drive ring 13. The guide mechanism 16 includes a guide groove 161, a guide post 162, and a limiting disk 163. The guide groove 161 is located in the drive ring 13 and extends in the radial direction of the drive ring 13. The guide post 162 is inserted into the guide groove 161 and its two ends are connected to the support ring 112 and the limiting disk 163, respectively. The limiting disk 163 slides against the drive disk. Because multiple guide mechanisms 16 are provided, the rotation of the drive ring 13 relative to the support ring 112 is both smooth and does not deflect, ensuring that each gripper 12 reliably receives the force applied by the cam follower 154 acting on it when the drive ring 13 rotates.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A cutting device, characterized in that, include: The reciprocating support includes a first guide foot and a shift plate; A cutting blade assembly is supported on the support plate. The cutting blade assembly includes a cutting blade holder, a cutting blade motor, and a cutting blade. The cutting blade motor drives the cutting blade located in the cutting blade holder to rotate. The support plate is provided with a first guide rail that slides in cooperation with the first guide foot; A displacement motor is supported on the support plate, and the displacement motor is driven to drive the first guide foot to move along the first guide rail. A power feed motor is supported on the support plate. The power feed motor is driven and connected to the cutter holder. The cutter holder is provided with a second guide foot. The support plate is provided with a second guide rail. The power feed motor drives the second guide foot to move the cutter along the second guide rail. The cutter is used to cut the part to be cut of the rotating workpiece under the drive of the power feed motor.

2. The cutting device according to claim 1, characterized in that, The cutting device further includes a pair of guide mechanisms located opposite each other on both sides of the cutter holder. The guide mechanism includes a support plate and a floating guide wheel. The floating guide wheel is rotatably connected to the support plate. The floating guide wheel rotates and abuts against the workpiece before the cutter and determines the cutting amount of the cutter on the part to be cut.

3. The cutting device according to claim 1, characterized in that, The cutter holder includes a dust collection hood, and the cutting device also includes a vacuum cleaner. The cutter is located in the dust collection hood, and the vacuum cleaner is connected to the dust collection hood and is used to absorb and collect the debris generated by the cutter during cutting.

4. The cutting device according to claim 3, characterized in that, The outer wall of the dust collection hood is provided with a horizontal brush group including multiple horizontal brushes and a vertical brush group including multiple vertical brushes. The horizontal brushes and the vertical brushes abut against the adjacent parts of the part to be cut in the horizontal and vertical directions, respectively.

5. The cutting device according to claim 4, characterized in that, The horizontal brush group extends at an angle relative to the horizontal plane, and the vertical brush group extends in a vertical direction. The horizontal brush group guides the debris into the dust hood in an inclined direction.

6. The cutting device according to claim 2, characterized in that, The reciprocating support includes a reciprocating seat and a positioning plate. The bottom surface of the reciprocating seat is provided with a pair of first guide feet, and the first guide rails are correspondingly provided with a pair. The positioning plate is provided with a second guide rail, and the side of the support plate facing the positioning plate is provided with a second guide foot. By adjusting the sliding position of the second guide foot on the second guide rail, the floating guide wheel rotates and abuts against the workpiece before the cutter.

7. The cutting device according to claim 1, characterized in that, The displacement motor and the power feed motor are arranged in parallel relative to each other, and the cutter motor is arranged perpendicularly relative to the displacement motor and the power feed motor respectively. The displacement motor is drivenly connected to the support plate between a pair of first guide rails.

8. Welding and cutting equipment for the inner liner of a hydrogen storage tank, characterized in that, The device includes a clamping and rotating device and a cutting device as described in any one of claims 1-7, wherein the workpiece is a hydrogen storage tank liner obtained by welding, the part to be cut is a weld, and the cutting device is used to cut the weld on the hydrogen storage tank liner that is rotated by the clamping and rotating device.

9. The welding and cutting equipment for the inner liner of a hydrogen storage tank according to claim 8, characterized in that, The clamping and rotating device includes: a support frame comprising a hollow support cylinder and a support ring protruding from the outer periphery of one end of the support cylinder, wherein the inner liner of the hydrogen storage tank is spaced apart within the support cylinder; a plurality of grippers arranged circumferentially on the support ring and movable radially along the support ring, each gripper having a clamping surface facing the central axis of the support ring, and each clamping surface of the gripper having a conformal shape adapted to the inner liner of the hydrogen storage tank; a drive ring connected to the support ring; a drive mechanism driving the drive ring to rotate to drive each gripper to move closer to or further away from the support ring radially and relative to the central axis of the support ring; a rotating ring fixedly connected to the support cylinder; and a rotation mechanism driving the rotating ring to rotate, thereby enabling the rotating ring to drive the workpiece held by the grippers to rotate around the support ring. The rotating ring rotates along its central axis; the outer ring of the rotating ring is provided with a driven gear; the rotating mechanism includes a rotating motor and a driving gear, the driving gear meshing with the driven gear, the rotating motor driving the driving gear to rotate to drive the support ring to rotate, so that multiple grippers rotate synchronously with the support ring; when the weld is being cut, the grippers of each of the clamping devices move closer, so that the clamping surfaces of each gripper form a clamping surface for fitting against the outer circumferential surface of the hydrogen storage tank liner and holding the hydrogen storage tank liner, the rotating motor driving the hydrogen storage tank liner to rotate, and the displacement motor and the power advance motor driving the cutter to approach the hydrogen storage tank liner, and the cutter, driven by the cutter motor, cuts the portion of the weld that extends beyond the outer diameter of the hydrogen storage tank liner.

10. The welding and cutting equipment for the inner liner of a hydrogen storage tank according to claim 9, characterized in that, The driving mechanism includes a driving cylinder, a driving gear, a rack, a mounting plate, and a fixing plate. The rack is fixed to the fixing plate, the fixing plate is fixed to the driving ring, and the mounting plate is fixed to the support ring. The driving cylinder is mounted on the mounting plate. The clamping and rotating device also includes a guiding mechanism with the same number of grippers. Each gripper includes a snap-fit ​​plate and a force transmission plate. The snap-fit ​​plate has a snap-fit ​​surface. The guiding mechanism includes a slider, a pair of guide blocks, a guide groove, and a cam follower. The pair of guide blocks are fixed at intervals to the side of the support ring facing away from the driving ring. The slider is fixed to the side of the force transmission plate facing the support ring and located between the pair of guide blocks. The cam follower... Connected to the slider, the guide groove is located in the drive ring and inclined relative to the radial direction of the drive ring. The drive cylinder is driven and connected to the drive gear, which drives the drive gear to rotate forward or backward. The drive gear drives the rack to move, thereby causing the drive ring to rotate forward or backward. Then, the cam follower drives the slider to slide between a pair of guide blocks under the action of the guide groove, thereby causing each of the grippers to move closer or further away from the central axis of the support ring. When each of the grippers moves closer, the clamping surface of each of the grippers holds the inner liner of the hydrogen storage tank. When each of the grippers moves further away, the inner liner of the hydrogen storage tank held by each of the grippers can be released.

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