Fixed-length cutting device for stainless steel pipe

Abstract

The invention belongs to the technical field of stainless steel pipe cutting, and particularly relates to a stainless steel pipe fixed-length cutting device which comprises a workbench, a plurality of conical grooves are formed in the upper end of the workbench, a first rectangular strip is arranged at the upper end of the workbench in a sliding mode, and a pushing assembly is arranged on one side of the upper end of the workbench. The material pushing assembly comprises a shifting piece slidably arranged at the upper end of the workbench, a cutting knife is slidably arranged on one side of the upper end of the workbench, a U-shaped frame is fixedly connected to one side of the workbench, a third rectangular strip is slidably arranged at the upper end of the U-shaped frame, and a second rectangular strip is slidably arranged on the side, away from the third rectangular strip, of the workbench. The cutting length of the stainless steel pipes can be controlled by adjusting the distance between a third rectangular strip and a cutting knife, the stainless steel pipes at the upper end of the workbench are sequentially pulled into a conical groove by driving a pulling piece, all the stainless steel pipes sequentially fall into the conical groove, the stainless steel pipes do not need to be manually arranged and fixed in sequence, and the working efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the field of stainless steel pipe cutting technology, specifically a fixed-length cutting device for stainless steel pipes. Background Technology

[0002] Stainless steel pipe is a hollow, long, round steel material, widely used in industrial pipelines for petroleum, chemical, medical, food, light industry, and machinery, as well as mechanical structural components. Furthermore, it is lighter in weight while maintaining the same bending and torsional strength, making it widely used in the manufacture of mechanical parts and engineering structures. It is also commonly used in furniture and kitchenware. Specialized cutting equipment is required for the production and processing of stainless steel pipes.

[0003] A patent application with publication number CN114918519B discloses an adjustable stainless steel pipe length-cutting device. This device features a distance control device installed on the left end of a support. The device incorporates a vertically movable baffle to limit the movement of the pushed-in steel pipe, achieving length-cutting. The baffle can be adjusted left and right by a cylinder, offering strong applicability, ease of adjustment, and improved work efficiency and precision. Furthermore, an auxiliary processing device is installed on the left side of the support plate. This device grinds the ends of the cut steel pipe, adjusting the grinding size according to the pipe's dimensions. It is highly functional, eliminating the need for manual or semi-automatic grinding to replace grinding tools, making it easy to operate and highly automated.

[0004] In the aforementioned prior art, cutting multiple stainless steel pipes simultaneously increases cutting efficiency. However, before cutting multiple stainless steel pipes, each stainless steel pipe needs to be neatly arranged in sequence before cutting. Manually arranging them is time-consuming and reduces work efficiency.

[0005] Therefore, the present invention provides a fixed-length cutting device for stainless steel pipes. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: A fixed-length cutting device for stainless steel pipes according to the present invention includes a worktable, a plurality of conical grooves are opened on the upper end of the worktable, a first rectangular strip is slidably arranged on the upper end of the worktable, side plates are fixedly connected to both sides of the worktable, a pushing component is arranged on one side of the upper end of the worktable, the pushing component includes a paddle slidably arranged on the upper end of the worktable, a cylindrical strip is rotatably arranged in the middle of the upper end of the paddle by a torsion spring, the cylindrical strip is slidably arranged on the upper end of the worktable by a first sliding component, a cutting blade is slidably arranged on one side of the upper end of the worktable, a U-shaped frame is fixedly connected to one side of the worktable, a third rectangular strip is slidably arranged on the upper end of the U-shaped frame, and a second rectangular strip is slidably arranged on the side of the worktable away from the third rectangular strip.

[0008] Preferably, the first sliding assembly includes a third slide platform fixedly connected to one side of a cylindrical strip, a third electric slide rail provided on one side of the third slide platform, the third electric slide rail fixedly connected to the upper end of the side plate, and the third slide platform slidably disposed on one side of the third electric slide rail.

[0009] Preferably, a first rectangular plate is fixedly connected to the opposite side of the side plate, and the output end of a hydraulic rod is fixedly connected to the upper end of the first rectangular plate. The hydraulic rod is fixedly connected to the upper end of the first rectangular plate through a first U-shaped support frame.

[0010] Preferably, the lower end of the first rectangular strip is provided with two extrusion plates, and the upper end of the worktable is provided with rectangular grooves corresponding to the positions of the extrusion plates. The lower end of the extrusion plate is provided with a second anti-slip pad, and the conical groove is provided with a first anti-slip pad.

[0011] Preferably, the extrusion plate is fixedly connected to the first rectangular bar by a telescopic rod, and springs are respectively sleeved on the outer side of the telescopic rod.

[0012] Preferably, a second rectangular plate is fixedly connected between the two side plates at the middle, and a third rectangular plate is provided at the upper end of the second rectangular plate. The third rectangular plate is slidably disposed between the two side plates, and the second rectangular strip is slidably disposed at the upper end of the third rectangular plate.

[0013] Preferably, a second U-shaped support frame is provided at the upper end of the second rectangular strip, a cylindrical block is fixedly connected to the lower end of the second U-shaped support frame, a circular hole is opened at the upper end of the second rectangular strip corresponding to the position of the cylindrical block, the cylindrical block is slidably disposed in the circular hole, a first slide table is fixedly connected to both sides of the lower end of the second U-shaped support frame, and a first electric slide rail is fixedly connected to the first rectangular plate at the position corresponding to the position of the first slide table, the first slide table is slidably disposed on the upper end of the first electric slide rail.

[0014] Preferably, cams are rotatably provided at the four corners between the second rectangular plate and the third rectangular plate, and the two cams are fixedly connected to each other by a first cylindrical rod. A sprocket is fixedly connected to the end of the first cylindrical rod, and the two sprockets are driven by a chain. The output end of a first motor is fixedly connected to one side of one of the sprockets, and the first motor is fixedly connected to one side of the side plate by a motor mount.

[0015] Preferably, a rotating plate is rotatably provided inside the U-shaped frame, and a collection frame is slidably provided on one side of the U-shaped frame.

[0016] Preferably, a fourth rectangular plate is fixed to both sides of the U-shaped frame, a third U-shaped support frame is fixed to the upper end of the third rectangular bar, a second slide table is fixed to both sides of the lower end of the third U-shaped support frame, a second electric slide rail is fixed to the upper end of the fourth rectangular plate corresponding to the position of the second slide table, the second slide table is slidably disposed on the upper end of the second electric slide rail, a first connecting rod is rotatably disposed on both sides of the upper end of the rotating plate, the end of the first connecting rod is slidably disposed inside the second connecting rod, the end of the second connecting rod is rotatably disposed on one side of the U-shaped frame through an L-shaped support bar, the two second connecting rods are fixedly connected to each other through a second cylindrical rod, the output end of a second motor is fixedly connected to the end of the second cylindrical rod, and the second motor is fixedly disposed on one side of the U-shaped frame through a motor base.

[0017] The beneficial effects of this invention are as follows: 1. The stainless steel pipe fixed-length cutting device of the present invention can control the cutting length of the stainless steel pipe by adjusting the distance between the third rectangular bar and the cutting blade. By driving the paddle, the stainless steel pipes on the upper end of the worktable are sequentially pushed into the conical groove, so that each stainless steel pipe falls into the conical groove in sequence. This solves the problem of low work efficiency when cutting multiple stainless steel pipes, which requires manual arrangement and fixing of the stainless steel pipes in sequence.

[0018] 2. In the fixed-length cutting device for stainless steel pipes described in this invention, when the stainless steel pipe is placed inside the conical groove, the third rectangular plate supports the stainless steel pipe, keeping it in a horizontal state. When it is necessary to drive the second rectangular bar to push the stainless steel pipe to one side of the third rectangular bar for a new round of cutting, the third rectangular plate is driven to move downwards and separate from the lower end of the stainless steel pipe to prevent the lower end of the stainless steel pipe from rubbing against the third rectangular plate during pushing, thereby causing scratches on the surface of the stainless steel pipe. Attached Figure Description

[0019] The invention will now be further described with reference to the accompanying drawings.

[0020] Figure 1 This is a perspective view of Embodiment 1 of the present invention; Figure 2 This is a diagram showing the position of the cutting blade; Figure 3This is a diagram showing the position of the paddle shifter; Figure 4 This is a schematic diagram of the workbench structure; Figure 5 This is a diagram showing the position of the U-shaped frame; Figure 6 This is a diagram showing the position of the cam; Figure 7 This is a schematic diagram showing the position of the rotating plate; In the diagram: 1. Workbench; 11. Conical groove; 111. Rectangular groove; 112. First anti-slip pad; 12. First rectangular strip; 121. Extrusion plate; 1211. Second anti-slip pad; 122. Telescopic rod; 123. Spring; 124. Hydraulic rod; 125. First U-shaped support frame; 13. Side plate; 131. First rectangular plate; 14. Second rectangular plate; 141. Third rectangular plate; 142. Cam; 143. First cylindrical rod; 144. Sprocket; 145. Chain; 146. First motor; 15. Second rectangular strip; 151. Second U-shaped support. 152. Frame; 153. Cylindrical block; 154. First slide table; 155. First electric slide rail; 16. U-shaped frame; 161. Third rectangular bar; 162. Third U-shaped support frame; 163. Second slide table; 164. Second electric slide rail; 165. Fourth rectangular plate; 166. Rotating plate; 1661. First connecting rod; 1662. Second connecting rod; 1663. L-shaped support bar; 1664. Second cylindrical rod; 1665. Second motor; 17. Collection frame; 2. Cutting knife; 3. Paddle; 31. Cylindrical bar; 32. Third slide table; 33. Third electric slide rail. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0022] Example 1: As Figures 1-7 As shown in the embodiment of the present invention, a fixed-length cutting device for stainless steel pipes includes a worktable 1. The upper end of the worktable 1 has several conical grooves 11. A first rectangular strip 12 is slidably arranged on the upper end of the worktable 1. Side plates 13 are fixedly connected to both sides of the worktable 1. A pushing assembly is arranged on one side of the upper end of the worktable 1. The pushing assembly includes a paddle 3 slidably arranged on the upper end of the worktable 1. A cylindrical strip 31 is rotatably arranged in the middle of the upper end of the paddle 3 through a torsion spring. The cylindrical strip 31 is slidably arranged on the upper end of the worktable 1 through a first sliding assembly. A cutting blade 2 is slidably arranged on one side of the upper end of the worktable 1. A U-shaped frame 16 is fixedly connected to one side of the worktable 1. A third rectangular strip 161 is slidably arranged on the upper end of the U-shaped frame 16. A second rectangular strip 15 is slidably arranged on the side of the worktable 1 away from the third rectangular strip 161.

[0023] Specifically, to improve cutting efficiency, multiple stainless steel pipes are cut simultaneously. Before cutting multiple stainless steel pipes, each pipe needs to be neatly arranged in sequence. Manually arranging them is time-consuming and reduces work efficiency. When using this cutting device, several stainless steel pipes are placed on the upper part of the worktable 1. Then, the cylindrical bar 31 is driven to slide on the upper part of the worktable 1. The cylindrical bar 31 drives the paddle 3 to push the stainless steel pipes on the upper part of the worktable 1 into the conical groove 11 in sequence, so that each stainless steel pipe falls into the conical groove 11 in sequence. Then, the second rectangular bar 15 and the third rectangular bar 161 are driven to move closer to the two ends of the stainless steel pipes, pushing the two ends of the stainless steel pipes to a flush state. Then, the first rectangular bar 12 is driven to slide downwards and press against the stainless steel pipes. The stainless steel tubes are fixed at the end, and then the cutting blade 2 is driven to cut a row of stainless steel tubes. The stainless steel tubes cut off from one side of the third rectangular strip 161 are then removed. The third rectangular strip 161 on one side is then kept still, and the second rectangular strip 15 on the other side is driven to push the stainless steel tubes inside the conical grooves 11 back to the side of the third rectangular strip 161. Then a second round of cutting can be performed, so that the length of the stainless steel tubes cut in each round is the same. The cutting length of the stainless steel tubes can be controlled by adjusting the distance between the third rectangular strip 161 and the cutting blade 2. The stainless steel tubes at the top of the workbench 1 are pushed into the conical grooves 11 one by one by the driving paddle 3, so that each stainless steel tube falls into the conical groove 11 in sequence. There is no need to manually arrange and fix the stainless steel tubes one by one, which improves work efficiency.

[0024] like Figure 3 As shown, the first sliding assembly includes a third slide table 32 fixedly connected to one side of a cylindrical strip 31, a third electric slide rail 33 provided on one side of the third slide table 32, the third electric slide rail 33 fixedly connected to the upper end of the side plate 13, and the third slide table 32 slidably disposed on one side of the third electric slide rail 33.

[0025] Specifically, the paddle 3 is initially located on one side of the side plate 13, which does not affect the downward sliding of the first rectangular bar 12 to squeeze and fix the stainless steel tube. When it is necessary to feed the stainless steel tube, the third slide table 32 is driven to slide on one side of the third electric slide rail 33. The third electric slide rail 33 drives the paddle 3 to slide on the upper end of the worktable 1 through the cylindrical bar 31, so that several stainless steel tubes can be sequentially pushed into the conical groove 11.

[0026] like Figure 3 As shown, a first rectangular plate 131 is fixedly connected to the opposite side of the side plate 13, and the output end of a hydraulic rod 124 is fixedly connected to the upper end of the first rectangular strip 12. The hydraulic rod 124 is fixedly connected to the upper end of the first rectangular plate 131 through a first U-shaped support frame 125.

[0027] Specifically, by driving the hydraulic rod 124 to extend, the hydraulic rod 124 drives the first rectangular bar 12 to move downward. The first rectangular bar 12 squeezes and fixes several stainless steel pipes placed on the upper end of the workbench 1 to prevent displacement during cutting.

[0028] like Figure 4 As shown, two extrusion plates 121 are provided at the lower end of the first rectangular strip 12, and rectangular grooves 111 are respectively opened at the upper end of the worktable 1 corresponding to the positions of the extrusion plates 121. A second anti-slip pad 1211 is installed at the lower end of the extrusion plate 121, and a first anti-slip pad 112 is installed inside the conical groove 11.

[0029] Specifically, when the first rectangular bar 12 slides downward to press and fix several stainless steel tubes placed on the upper end of the workbench 1, the stainless steel tubes are placed in the first anti-slip pad 112 installed on the upper end of the conical groove 11. The first rectangular bar 12 drives the pressing plate 121 set at the lower end to slide into the rectangular groove 111. The pressing plate 121 drives the second anti-slip pad 1211 installed at the lower end to press and fix the upper end of several stainless steel tubes. Both the first anti-slip pad 112 and the second anti-slip pad 1211 are made of rubber, which can increase the friction between them and the stainless steel tubes, making the fixation more secure, and at the same time preventing scratches on the surface of the stainless steel tubes.

[0030] like Figure 4 As shown, the extrusion plate 121 is fixedly connected to the first rectangular bar 12 via a telescopic rod 122, and springs 123 are respectively sleeved on the outer side of the telescopic rod 122.

[0031] Specifically, when the first rectangular bar 12 moves the extrusion plate 121 downward to extrude and fix the stainless steel tube, the extrusion plate 121 contacts the upper end of the stainless steel tube. Subsequently, the telescopic rod 122 retracts and compresses the spring 123 to prevent the extrusion plate 121 from excessively extruding the stainless steel tube, thereby causing the stainless steel tube to deform.

[0032] like Figures 5-6 As shown, a second rectangular plate 14 is fixedly connected between the two side plates 13 in the middle, and a third rectangular plate 141 is provided on the upper end of the second rectangular plate 14. The third rectangular plate 141 is slidably disposed between the two side plates 13, and a second rectangular strip 15 is slidably disposed on the upper end of the third rectangular plate 141.

[0033] Specifically, when the stainless steel tube is placed inside the conical groove 11, the third rectangular plate 141 initially adheres to the lower end of the stainless steel tube, supporting it and keeping it horizontal. Then, the second rectangular bar 15 is driven to push several stainless steel tubes inside the conical groove 11 to one side of the third rectangular bar 161, arranging the stainless steel tubes neatly. After cutting, the second rectangular bar 15 needs to be driven to push the stainless steel tubes to one side of the third rectangular bar 161 again. At this time, the third rectangular plate 141 is driven to move downwards and separate from the lower end of the stainless steel tube to prevent friction caused by pushing the stainless steel tube.

[0034] like Figure 6 As shown, a second U-shaped support frame 151 is provided at the upper end of the second rectangular strip 15, and a cylindrical block 152 is fixedly connected to the lower end of the second U-shaped support frame 151. A circular hole is opened at the upper end of the second rectangular strip 15 corresponding to the position of the cylindrical block 152. The cylindrical block 152 is slidably disposed in the circular hole. A first slide table 153 is fixedly connected to both sides of the lower end of the second U-shaped support frame 151. A first electric slide rail 154 is fixedly connected to the first rectangular plate 131 corresponding to the position of the first slide table 153. The first slide table 153 is slidably disposed on the upper end of the first electric slide rail 154.

[0035] Specifically, by driving the first slide table 153 to slide on the upper end of the first electric slide rail 154, the first slide table 153 drives the second rectangular bar 15 to slide on the upper end of the third rectangular plate 141 through the second U-shaped support frame 151. The second rectangular bar 15 can push the stainless steel tube to one side of the third rectangular bar 161. When the third rectangular plate 141 slides up and down, the third rectangular plate 141 drives the second rectangular bar 15 to slide on the outside of the cylindrical block 152.

[0036] like Figure 6 As shown, cams 142 are rotatably mounted at the four corners between the second rectangular plate 14 and the third rectangular plate 141. The two cams 142 are fixedly connected to each other by a first cylindrical rod 143. The ends of the first cylindrical rod 143 are fixedly connected to sprockets 144. The two sprockets 144 are driven by a chain 145. The output end of the first motor 146 is fixedly connected to one side of one of the sprockets 144. The first motor 146 is fixedly connected to one side of the side plate 13 by a motor mount.

[0037] Specifically, by starting the first motor 146, one side sprocket 144 is driven to rotate. One side sprocket 144 drives the other side sprocket 144 to rotate via the chain 145. The two sprockets 144 simultaneously drive the first cylindrical rod 143 to rotate. The first cylindrical rod 143 simultaneously drives the cam 142 to rotate. When the cam 142 rotates, it can drive the third rectangular plate 141 to slide up and down.

[0038] Example 2: Figure 7As shown in the first embodiment, another embodiment of the present invention is as follows: a rotating plate 166 is rotatably provided inside the U-shaped frame 16, and a collection frame 17 is slidably provided on one side of the U-shaped frame 16.

[0039] Specifically, after the stainless steel pipe is cut, the cut stainless steel pipe falls onto the upper end of the rotating plate 166. By driving the rotating plate 166 to rotate, the stainless steel pipe on the upper end of the rotating plate 166 falls into the collection frame 17.

[0040] like Figure 7 As shown, a fourth rectangular plate 165 is fixed to both sides of the U-shaped frame 16. A third U-shaped support frame 162 is fixed to the upper end of the third rectangular strip 161. A second slide table 163 is fixed to both sides of the lower end of the third U-shaped support frame 162. A second electric slide rail 164 is fixed to the upper end of the fourth rectangular plate 165 at the position corresponding to the second slide table 163. The second slide table 163 is slidably disposed on the upper end of the second electric slide rail 164. A first connecting rod 1661 is rotatably disposed on both sides of the upper end of the rotating plate 166. The end of the first connecting rod 1661 is slidably disposed inside the second connecting rod 1662. The end of the second connecting rod 1662 is rotatably disposed on one side of the U-shaped frame 16 through the L-shaped support strip 1663. The two second connecting rods 1662 are fixedly connected to each other through the second cylindrical rod 1664. The output end of the second cylindrical rod 1664 is fixedly connected to the end of the second motor 1665. The second motor 1665 is fixedly disposed on one side of the U-shaped frame 16 through the motor base.

[0041] Specifically, by driving the second slide table 163 to slide on the upper end of the second electric slide rail 164, the second slide table 163 drives the third rectangular bar 161 to slide on the upper end of the rotating plate 166 through the third U-shaped support frame 162. Adjusting the distance between the third rectangular bar 161 and the cutting blade 2 can adjust the cutting length of the stainless steel pipe. After cutting, by starting the second motor 1665 to drive the second cylindrical rod 1664 to rotate, the second cylindrical rod 1664 drives the first connecting rod 1661 to rotate through the second connecting rod 1662, the first connecting rod 1661 drives the rotating plate 166 to rotate downward, and at the same time the first connecting rod 1661 slides inside the second connecting rod 1662. The rotating plate 166 drives the cut stainless steel pipe to fall into the collection frame 17.

[0042] Working principle: When using this cutting device, several stainless steel tubes are placed on the upper end of the worktable 1. Then, the cylindrical bar 31 is driven to slide on the upper end of the worktable 1. The cylindrical bar 31 drives the paddle 3 to push the stainless steel tubes on the upper end of the worktable 1 into the conical groove 11 in sequence, so that each stainless steel tube falls into the conical groove 11 in sequence. By driving the hydraulic rod 124 to extend, the hydraulic rod 124 drives the first rectangular bar 12 to move downward. The stainless steel tubes are placed in the first anti-slip pad 112 installed on the upper end of the conical groove 11. The first rectangular bar 12 drives the lower end... The extrusion plate 121 is slid into the rectangular groove 111. The extrusion plate 121 drives the second anti-slip pad 1211 installed at the lower end to extrude and fix the upper ends of several stainless steel tubes. When the first rectangular bar 12 drives the extrusion plate 121 to move downward to extrude and fix the stainless steel tubes, the extrusion plate 121 contacts the upper end of the stainless steel tube. Then the telescopic rod 122 retracts and squeezes the spring 123 to prevent the extrusion plate 121 from excessively extruding the stainless steel tube, thereby causing the stainless steel tube to deform. Then the cutting blade 2 is driven to cut a row of stainless steel tubes. After the stainless steel pipe is cut, the cut stainless steel pipe falls onto the upper end of the rotating plate 166. Then, the second motor 1665 is started to drive the second cylindrical rod 1664 to rotate. The second cylindrical rod 1664 drives the first connecting rod 1661 to rotate through the second connecting rod 1662. The first connecting rod 1661 drives the rotating plate 166 to rotate downward. At the same time, the first connecting rod 1661 slides inside the second connecting rod 1662. The rotating plate 166 causes the cut stainless steel pipe to fall into the collection frame 17. When the stainless steel tube is placed inside the conical groove 11, the third rectangular plate 141 initially adheres to the lower end of the stainless steel tube, supporting the stainless steel tube and keeping it in a horizontal state. When a new round of cutting is performed on the stainless steel tube, the second rectangular bar 15 is driven again to push the stainless steel tube to the side of the third rectangular bar 161. At this time, the third rectangular plate 141 is driven to move downward and separate from the lower end of the stainless steel tube to prevent friction caused by pushing the stainless steel tube.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixed-length cutting device for stainless steel pipes, comprising a worktable (1), wherein a plurality of conical grooves (11) are provided on the upper end of the worktable (1), a first rectangular strip (12) is slidably disposed on the upper end of the worktable (1), side plates (13) are fixedly connected to both sides of the worktable (1), and a pusher assembly is provided on one side of the upper end of the worktable (1), characterized in that: The feeding assembly includes a paddle (3) slidably disposed on the upper end of the worktable (1). A cylindrical strip (31) is rotatably disposed on the middle of the upper end of the paddle (3) via a torsion spring. The cylindrical strip (31) is slidably disposed on the upper end of the worktable (1) via a first sliding assembly. A cutting blade (2) is slidably disposed on one side of the upper end of the worktable (1). A U-shaped frame (16) is fixedly connected to one side of the worktable (1). A third rectangular strip (161) is slidably disposed on the upper end of the U-shaped frame (16). A second rectangular strip (15) is slidably disposed on the side of the worktable (1) away from the third rectangular strip (161).

2. The stainless steel pipe length-cutting device according to claim 1, characterized in that: The first sliding assembly includes a third slide (32) fixedly connected to one side of a cylindrical strip (31), and a third electric slide rail (33) is provided on one side of the third slide (32). The third electric slide rail (33) is fixedly connected to the upper end of the side plate (13), and the third slide (32) is slidably disposed on one side of the third electric slide rail (33).

3. The stainless steel pipe length-cutting device according to claim 2, characterized in that: The side plate (13) is fixedly connected to the opposite side of the first rectangular plate (131). The output end of the hydraulic rod (124) is fixedly connected to the upper end of the first rectangular bar (12). The hydraulic rod (124) is fixedly connected to the upper end of the first rectangular plate (131) through the first U-shaped support frame (125).

4. The stainless steel pipe length-cutting device according to claim 3, characterized in that: The first rectangular strip (12) has two extrusion plates (121) at its lower end. The upper end of the workbench (1) is provided with rectangular grooves (111) corresponding to the positions of the extrusion plates (121). The lower end of the extrusion plate (121) is provided with a second anti-slip pad (1211). The conical groove (11) is provided with a first anti-slip pad (112).

5. The stainless steel pipe length-cutting device according to claim 4, characterized in that: The extrusion plate (121) is fixed to the first rectangular bar (12) by a telescopic rod (122), and springs (123) are respectively sleeved on the outside of the telescopic rod (122).

6. The stainless steel pipe length-cutting device according to claim 5, characterized in that: A second rectangular plate (14) is fixedly connected between the two side plates (13) at the middle. A third rectangular plate (141) is provided at the upper end of the second rectangular plate (14). The third rectangular plate (141) is slidably disposed between the two side plates (13). The second rectangular strip (15) is slidably disposed at the upper end of the third rectangular plate (141).

7. The stainless steel pipe length-cutting device according to claim 6, characterized in that: The upper end of the second rectangular bar (15) is provided with a second U-shaped support frame (151), and the lower end of the second U-shaped support frame (151) is fixedly connected with a cylindrical block (152). A circular hole is opened at the upper end of the second rectangular bar (15) corresponding to the position of the cylindrical block (152). The cylindrical block (152) is slidably disposed in the circular hole. The lower ends of the second U-shaped support frame (151) are respectively fixedly connected with first slides (153). The first rectangular plate (131) is respectively fixedly connected with first electric slide rails (154) corresponding to the positions of the first slides (153). The first slides (153) are slidably disposed at the upper end of the first electric slide rails (154).

8. The stainless steel pipe length-cutting device according to claim 7, characterized in that: Cams (142) are rotatably provided at the four corners between the second rectangular plate (14) and the third rectangular plate (141). The two cams (142) are fixedly connected to each other by a first cylindrical rod (143). The ends of the first cylindrical rod (143) are fixedly connected to sprockets (144). The two sprockets (144) are driven by a chain (145). The output end of a first motor (146) is fixedly connected to one side of one of the sprockets (144). The first motor (146) is fixedly connected to one side of the side plate (13) by a motor mount.

9. A fixed-length cutting device for stainless steel pipes according to claim 8, characterized in that: The U-shaped frame (16) is rotatably provided with a rotating plate (166) inside, and a collection frame (17) is slidably provided on one side of the U-shaped frame (16).

10. A fixed-length cutting device for stainless steel pipes according to claim 9, characterized in that: A fourth rectangular plate (165) is fixedly connected to both sides of the U-shaped frame (16). A third U-shaped support frame (162) is fixedly connected to the upper end of the third rectangular strip (161). A second slide table (163) is fixedly connected to both sides of the lower end of the third U-shaped support frame (162). A second electric slide rail (164) is fixedly connected to the upper end of the fourth rectangular plate (165) at the position corresponding to the second slide table (163). The second slide table (163) is slidably disposed on the upper end of the second electric slide rail (164). The upper end of the rotating plate (166) is rotatably disposed on both sides. A first connecting rod (1661) is provided, and the end of the first connecting rod (1661) is slidably disposed inside the second connecting rod (1662). The end of the second connecting rod (1662) is rotatably disposed on one side of the U-shaped frame (16) by an L-shaped support bar (1663). The two second connecting rods (1662) are fixedly connected to each other by a second cylindrical rod (1664). The end of the second cylindrical rod (1664) is fixedly connected to the output end of a second motor (1665). The second motor (1665) is fixedly connected to one side of the U-shaped frame (16) by a motor mount.

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