Batch cutting device for GCr15 bearing steel pipes

Abstract

The invention relates to the technical field of bearing steel pipe manufacturing, and discloses a GCr15 bearing steel pipe batch cutting device which comprises a bottom plate, the top of the bottom plate is fixedly connected with a first placing plate, and the front end of the bottom plate is fixedly connected with a baffle. The whole mechanism moves downwards, the second rolling wheel on the top of the mechanism makes contact with the bearing steel pipe, the second rolling wheel rotates to drive the bearing steel pipe to rotate together, the rotating bearing steel pipe can be cut off under the action of the cutting knife, and after cutting is completed, the whole mechanism moves upwards, the second rolling wheel is separated from the bearing steel pipe, and the bearing steel pipe is cut off. The conveying belt at the bottom of the mechanism can move upwards to make contact with the bearing steel pipe to drive the bearing steel pipe to move forwards, the bearing steel pipe stops moving after making contact with the baffle, the process is repeated, only the mechanism needs to be controlled to ascend and descend in the process, and the workload of workers is greatly reduced.

Description

Technical Field

[0001] This invention relates to the field of bearing steel tube manufacturing technology, specifically a batch cutting device for GCr15 bearing steel tubes. Background Technology

[0002] Bearing steel pipe refers to hot-rolled or cold-rolled seamless steel pipe used to manufacture ordinary rolling bearing rings. It is divided into ordinary precision and high precision types. Bearing steel is used to manufacture balls, rollers and bearing rings. Bearings are subjected to extremely high pressure and friction during operation, so bearing steel is required to have high and uniform hardness and wear resistance, as well as a high elastic limit. The requirements for the uniformity of chemical composition, the content and distribution of non-metallic inclusions, and the distribution of carbides in bearing steel are very strict. It is one of the steel grades with the most stringent requirements in all steel production.

[0003] Patent application CN202220909699.3 discloses a batch cutting device for GCr15 bearing steel pipes. A filter screen is fixedly connected to the inner wall of one end of the water pump inside the finished product box. This batch cutting device for GCr15 bearing steel pipes uses a water pump to draw water from the finished product box, thereby achieving the effect of water recycling and reducing water waste. Therefore, this device has good environmental value and significance.

[0004] The aforementioned equipment requires manual operation in many aspects when cutting bearing steel pipes, such as placement, cutting, and fixing before cutting. This requires a lot of manpower and workload when cutting a large number of bearing steel pipes in batches, which is not conducive to the batch cutting of bearing steel pipes. Summary of the Invention

[0005] The purpose of this invention is to provide a batch cutting device for GCr15 bearing steel pipes to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a batch cutting device for GCr15 bearing steel pipes, comprising a base plate, a placement plate fixedly connected to the top of the base plate, a baffle fixedly connected to the front end of the base plate, and further comprising: A cutting mechanism includes a frame, the bottom of which is fixedly connected to a base plate. Sliding frames are movably connected to the outer walls of both the front and rear ends of the frame. Rollers are rotatably connected to the bottom of each sliding frame via bearings. An adjustment assembly is provided inside the frame. Connecting rods are fixedly connected to the inner walls of both the front and rear ends of the frame. Telescopic rods are rotatably connected to the outer walls of each connecting rod via bearings. The ends of each telescopic rod near the sliding frames are rotatably connected to the sliding frames via bearings. A placement plate is fixedly connected to the inner wall of the frame. Grooves are provided on both sides and the bottom of the placement plate at its central axis. Connecting rods are fixedly connected to the outer wall of the adjustment assembly. A base is fixedly connected to the outer wall of the connecting rod at its central axis. The base has a cutting blade movably connected to one end away from the placement plate. As the adjustment assembly lowers, the cutting blade also descends to its corresponding external position, allowing the equipment to cut and fix the bearing steel pipe simultaneously, reducing the workload of the workers. An elastic component is fixedly connected to the top of the cutting blade, and the top of the elastic component is fixedly connected to the base. By setting up a cutting mechanism, after the equipment completes the cutting of the bearing steel pipe, the adjustment assembly rises, allowing the conveyor belt to contact the bearing steel pipe. At this time, roller one also descends and contacts the bearing steel pipe, increasing the pressure on the top of the bearing steel pipe and ensuring that the conveyor belt can drive the bearing steel pipe forward, preventing conveyor belt slippage and ensuring stable operation of the equipment.

[0007] According to the above technical solution, the adjusting component includes a base column, the bottom of which is fixedly connected to a base plate, an annular plate fixedly connected to the top of the base column, a sliding column fixedly connected to the top of the annular plate, a connecting plate one fixedly connected to the top of the sliding column, an auxiliary component fixedly connected to the inner wall of the connecting plate one, a push rod fixedly connected to the top of the base plate, a connecting plate two fixedly connected to the top of the push rod, and a U-shaped frame one fixedly connected to the outer wall of the connecting plate two. A slider 1 is connected, and the inner wall of slider 1 is movably connected to a sliding column. A connecting plate 3 is fixedly connected to the top of U-shaped frame 1. Both ends of the connecting plate 3 are rotatably connected to sleeves 1 via bearings. A conveyor belt is fitted onto the outer wall of sleeve 1, and two sleeves 1 are rotatably connected via the conveyor belt. A bracket 1 is fixedly connected to the outer wall of the connecting plate 3. A motor 1 is fixedly connected to the inner wall of the bracket 1 at the end away from the connecting plate 3. The output end of the motor 1 is fixedly connected to the sleeve 1 located on the rear side. A U-shaped frame 2 is fixedly connected to the outer wall of slider 1. A side plate is fixedly connected to the inner wall of the second U-shaped frame. The outer wall of the side plate is fixedly connected to the second connecting rod. An arc-shaped plate is fixedly connected to the top of the second U-shaped frame. The top of the arc-shaped plate is rotatably connected to the first telescopic rod via a bearing. A second motor is fixedly connected to the top of the arc-shaped plate. A second sleeve is fixedly connected to the output end of the second motor. A second roller is rotatably connected to the inner wall of the arc-shaped plate via a bearing. A belt is fitted onto the outer wall of the second roller. The second sleeve is rotatably connected to the second roller via the belt. By setting an adjustment component, when the equipment cuts the bearing steel pipe, the component... The entire assembly moves downwards, bringing the second roller at the top of the component into contact with the bearing steel tube. The rotation of the second roller causes the bearing steel tube to rotate as well, and the rotating bearing steel tube is cut off by the cutting blade. After cutting, the entire assembly moves upwards, separating the second roller from the bearing steel tube. Meanwhile, the conveyor belt at the bottom of the assembly moves upwards and contacts the bearing steel tube, driving it forward. The movement stops when the bearing steel tube contacts the baffle. This process is repeated. During this process, only the upward and downward movement of the assembly needs to be controlled, greatly reducing the workload of the workers.

[0008] According to the above technical solution, the auxiliary component includes a bracket two, the outer wall of which is fixedly connected to a connecting plate one, and the outer wall of which is fixedly connected to a placement plate two. A telescopic rod two is rotatably connected to the end of the bracket two away from the placement plate two via a bearing. A connecting column is rotatably connected to the end of the telescopic rod two away from the bracket two via a bearing. The inner wall of the U-shaped frame one is fixedly connected to the connecting column. A connecting rod three is fixedly connected to the end of the telescopic rod two away from the connecting column. A telescopic rod three is rotatably connected to the end of the connecting rod three away from the telescopic rod two via a bearing. A track is fixedly provided on the inner wall of the bracket two. A slider two is movably connected to the outer wall of the track. A spring is fixedly connected to the end of the slider two away from the placement plate two. The end of the spring away from the second slider is fixedly connected to the second bracket. A connecting frame is fixedly connected to the top of the second slider. The end of the connecting frame away from the second slider is rotatably connected to the telescopic rod third via a bearing. A telescopic column is fixedly connected to the end of the second slider away from the spring. A roller third is rotatably connected to the inner wall of the end of the telescopic column away from the second slider via a bearing. By setting an auxiliary component, when the adjustment component descends, the roller third will automatically extend. The two rollers third and the top roller second will clamp the bearing steel tube. This can effectively reduce the friction between the bearing steel tube and the placement plate second, making it easier for the bearing steel tube to be rotated and ensuring smooth operation of the equipment. At the same time, after the adjustment rises, the rollers third will automatically retract, without hindering the movement of the bearing steel tube.

[0009] Compared with the prior art, the beneficial effects achieved by the present invention are: 1. This invention, by setting up an adjustment component, allows the entire component to move downwards during the cutting of bearing steel pipes. This allows the second roller at the top of the component to contact the bearing steel pipe, and the rotation of the second roller causes the bearing steel pipe to rotate as well. The rotating bearing steel pipe is then cut off by the cutting blade. After cutting, the entire component moves upwards, separating the second roller from the bearing steel pipe. Meanwhile, the conveyor belt at the bottom of the component moves upwards to contact the bearing steel pipe, driving it forward. The movement stops when the bearing steel pipe contacts the baffle. This process is repeated. During this process, only the upward and downward movement of the component needs to be controlled, greatly reducing the workload of the workers.

[0010] 2. By setting up a cutting mechanism, after the equipment completes the cutting of the bearing steel pipe, the adjusting component rises, allowing the conveyor belt to contact the bearing steel pipe. At this time, the roller also descends and contacts the bearing steel pipe, increasing the pressure on the top of the bearing steel pipe. This ensures that the conveyor belt can drive the bearing steel pipe forward, avoiding slippage of the conveyor belt and ensuring the stable operation of the equipment.

[0011] 3. The present invention uses a cutting blade mounted on the adjusting component. When the adjusting component is lowered, the cutting blade will also be lowered to the corresponding external position, so that the cutting and fixing of the bearing steel pipe can be completed at the same time, reducing the workload of the workers.

[0012] 4. By setting up an auxiliary component, the roller three will automatically extend when the adjustment component descends. The two roller three and the top roller two will clamp the bearing steel pipe, which can effectively reduce the friction between the bearing steel pipe and the placement plate two, making it easier for the bearing steel pipe to be rotated and ensuring smooth operation of the equipment. At the same time, after the adjustment component rises, the roller three will automatically retract, without hindering the movement of the bearing steel pipe. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the interception mechanism of the present invention; Figure 3 This is a schematic diagram of the internal parts of the interception mechanism of the present invention; Figure 4 This is a bottom view of the adjustment component of the present invention; Figure 5 This is a schematic diagram of some parts of the adjustment component of the present invention; Figure 6 This is a schematic diagram of the adjustment component of the present invention; Figure 7 This is a schematic diagram of the auxiliary components of the present invention; In the diagram: 1. Base plate; 101. Baffle; 102. Placement plate one; 2. Cutting mechanism; 201. Frame; 202. Sliding frame; 203. Roller one; 204. Connecting rod one; 205. Telescopic rod one; 206. Placement plate two; 207. Connecting rod two; 208. Base; 209. Cutting blade; 2010. Elastic component one; 2011. Groove; 21. Adjustment component; 211. Base column; 212. Annular plate; 213. Sliding column; 214. Connecting plate one; 215. Push rod; 216. Connecting plate two; 217. U-shaped frame one; 218. Slider one; 219. 2110. Connecting plate 3; 2111. Sleeve 1; 2111. Conveyor belt; 2112. Bracket 1; 2113. Motor 1; 2114. U-shaped frame 2; 2115. Side plate; 2116. Arc plate; 2117. Motor 2; 2118. Sleeve 2; 2119. Roller 2; 2120. Belt; 22. Auxiliary components; 221. Bracket 2; 222. Telescopic rod 2; 223. Connecting column; 224. Connecting rod 3; 225. Telescopic rod 3; 226. Track; 227. Slider 2; 228. Spring; 229. Connecting frame; 2210. Telescopic column; 2211. Roller 3. Detailed Implementation

[0014] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0015] Example 1, please refer to Figures 1-3 The present invention provides a technical solution: a batch cutting device for GCr15 bearing steel pipes, comprising a base plate 1, a placement plate 102 fixedly connected to the top of the base plate 1, a baffle 101 fixedly connected to the front end of the base plate 1, and further comprising: The cutting mechanism 2 includes a frame 201, the bottom of which is fixedly connected to the base plate 1. Sliding frames 202 are movably connected to the outer walls of both the front and rear ends of the frame 201. Rollers 203 are rotatably connected to the bottom of each sliding frame 202 via bearings. An adjusting assembly 21 is installed inside the frame 201. Connecting rods 204 are fixedly connected to the inner walls of both the front and rear ends of the frame 201. Telescopic rods 205 are rotatably connected to the outer walls of each connecting rod 204 via bearings. The ends of each telescopic rod 205 near the sliding frames 202 are rotatably connected to the sliding frames 202 via bearings. A placement plate 206 is fixedly connected to the inner wall of the frame 201. Grooves 2011 are provided on both sides and bottom of the central axis of the second 206. A connecting rod 207 is fixedly connected to the outer wall of the adjusting component 21. A base 208 is fixedly connected to the outer wall of the central axis of the connecting rod 207. A cutting blade 209 is movably connected to the end of the base 208 away from the placement plate 206. With the cutting blade 209 set on the adjusting component 21, after the adjusting component 21 is lowered, the cutting blade 209 will also be lowered to the corresponding external position, so that the cutting and fixing of the bearing steel pipe can be completed at the same time, reducing the workload of the workers. An elastic component 2010 is fixedly connected to the top of the cutting blade 209. The top of the elastic component 2010 is fixedly connected to the base 208.

[0016] Preferably, after the adjusting component 21 descends to its position, the cutting blade 209 contacts the surface of the steel pipe. As the motor 2117 drives the roller 2119 to rotate the steel pipe at a constant speed, the cutting blade 209 gradually cuts into the steel pipe during rotation until it is completely severed. The elastic component 2010 provides appropriate cutting pressure to the cutting blade and compensates for minor radial runout of the steel pipe.

[0017] The working principle of this embodiment is as follows: When the adjusting component 21 rises, it will drive the telescopic rod 205 to rotate around the connecting rod 204. The rotating telescopic rod 205 will drive the sliding frame 202 to move downward along the outer wall of the frame 201, and then drive the roller 203 to move downward as well, so that the roller 203 contacts the bearing steel pipe, increasing the pressure on the top of the bearing steel pipe, ensuring that the conveyor belt 2111 can drive the bearing steel pipe to move forward, avoiding the slippage of the conveyor belt 2111, and ensuring the stable operation of the equipment.

[0018] Example 2 differs from Example 1 in that: Please refer to... Figures 4-6As shown, the adjusting assembly 21 includes a base column 211, the bottom of which is fixedly connected to the base plate 1. An annular plate 212 is fixedly connected to the top of the base column 211. A sliding column 213 is fixedly connected to the top of the annular plate 212. A connecting plate 214 is fixedly connected to the top of the sliding column 213. An auxiliary assembly 22 is fixedly connected to the inner wall of the connecting plate 214. The bottom of the connecting plate 214 is fixedly connected to a placement plate 206. A push rod 215 is fixedly connected to the top of the base plate 1. The connecting plate 215 is fixedly connected to the top of the push rod 215. 216. A U-shaped frame 217 is fixedly connected to the outer wall of connecting plate 216. A slider 218 is fixedly connected to the outer wall of U-shaped frame 217. The inner wall of slider 218 is movably connected to sliding column 213. A connecting plate 219 is fixedly connected to the top of U-shaped frame 217. Both the front and rear ends of connecting plate 219 are rotatably connected to sleeve 2110 via bearings. A conveyor belt 2111 is fitted onto the outer wall of sleeve 2110. The two sleeves 2110 are rotatably connected via conveyor belt 2111. The outer wall of connecting plate 219... A bracket 2112 is fixedly connected to the wall. A motor 2113 is fixedly connected to the inner wall of the end of the bracket 2112 away from the connecting plate 219. The output end of the motor 2113 is fixedly connected to the sleeve 2110 located at the rear. The motor 2113 drives the sleeve 2110 to rotate, thereby driving the conveyor belt 2111 to move. A U-shaped frame 2114 is fixedly connected to the outer wall of the slider 218. A side plate 2115 is fixedly connected to the inner wall of the U-shaped frame 2114. The outer wall of the side plate 2115 is fixedly connected to the connecting rod 207. A fixed connection is made to the top of the U-shaped frame 2114, which is fixedly connected to an arc plate 2116. The top of the arc plate 2116 is rotatably connected to the telescopic rod 205 via a bearing. A motor 2117 is fixedly connected to the top of the arc plate 2116. A sleeve 2118 is fixedly connected to the output end of the motor 2117. A roller 2119 is rotatably connected to the inner wall of the arc plate 2116 via a bearing. A belt 2120 is fitted on the outer wall of the roller 2119. The sleeve 2118 is rotatably connected to the roller 2119 via the belt 2120.

[0019] The working principle of this embodiment is as follows: When the steel pipe needs to be cut, the push rod 215 is retracted, which then drives the U-shaped frame 217 and the U-shaped frame 2114 to move downward together through the connecting plate 216. This causes the conveyor belt connected to the U-shaped frame 217 to move downward away from the steel pipe, and the roller 2119 connected to the U-shaped frame 2114 also moves downward to contact the steel pipe. The motor drives the sleeve 2118 to rotate, which in turn drives the roller 2119 to rotate through the belt 2120. The rotation of the roller 2119 drives the bearing steel... The tubes rotate together, and the rotating bearing steel tubes are cut off by the cutting blade 209. After the cutting is completed, the push rod 215 extends, driving the U-shaped frame 217 and the U-shaped frame 2114 to move upward together, so that the roller 2119 separates from the bearing steel tube. The bottom conveyor belt 2111 of the component moves upward and contacts the bearing steel tube, driving the bearing steel tube forward. When the bearing steel tube contacts the baffle 101, it stops moving. This process is repeated. In this process, only the rise and fall of the component need to be controlled, which greatly reduces the workload of the staff.

[0020] Example 3 differs from Examples 1 and 2 in that: Please refer to... Figure 7 As shown, auxiliary component 22 includes a second bracket 221. The outer wall of the second bracket 221 is fixedly connected to the first connecting plate 214 and the second placement plate 206. A telescopic rod 222 is rotatably connected to the end of the second bracket 221 away from the second placement plate 206 via a bearing. A connecting column 223 is rotatably connected to the end of the telescopic rod 222 away from the second bracket 221 via a bearing. The inner wall of the first U-shaped frame 217 is fixedly connected to the connecting column 223. A connecting rod 224 is fixedly connected to the end of the telescopic rod 222 away from the connecting column 223. A telescopic rod 224 is rotatably connected to the end of the connecting rod 224 away from the telescopic rod 222 via a bearing. 5. A track 226 is fixedly installed on the inner wall of the support 221. A slider 227 is movably connected to the outer wall of the track 226. A spring 228 is fixedly connected to the end of the slider 227 away from the placement plate 206. The end of the spring 228 away from the slider 227 is fixedly connected to the support 221. A connecting frame 229 is fixedly connected to the top of the slider 227. The end of the connecting frame 229 away from the slider 227 is rotatably connected to the telescopic rod 3 225 through a bearing. A telescopic column 2210 is fixedly connected to the end of the slider 227 away from the spring 228. A roller 3 2211 is rotatably connected to the inner wall of the end of the telescopic column 2210 away from the slider 227 through a bearing.

[0021] The working principle of this embodiment is as follows: When the adjusting component 21 is in the descending state, the spring 228 will push the slider 227 forward to make the roller 2211 contact the steel pipe. The two rollers 2211 and the top roller 2119 will clamp the bearing steel pipe, which can effectively reduce the friction between the bearing steel pipe and the placement plate 206, making the bearing steel pipe easier to rotate and ensuring smooth operation of the equipment. After the equipment completes the cutting, the adjusting component 21 rises, and then drives the telescopic rod 222 to rotate around the connection of the bracket 221 as the center through the connecting column 223. The rotating telescopic rod 222 will pull the telescopic rod 225 backward through the connecting rod 224, causing the roller 2211 to retract backward. After the adjusting component rises, the roller 2211 will automatically retract, without hindering the movement of the bearing steel pipe.

[0022] 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, and do not necessarily require or imply any such actual relationship or order between these entities or operations. 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 process, method, article, or apparatus.

[0023] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A batch cutting device for GCr15 bearing steel pipes, comprising a base plate (1), wherein a placement plate (102) is fixedly connected to the top of the base plate (1), and a baffle (101) is fixedly connected to the front end of the base plate (1), characterized in that, Also includes: The cutting mechanism (2) includes a frame (201), the bottom of which is fixedly connected to the base plate (1). Sliding frames (202) are movably connected to the outer walls of both the front and rear ends of the frame (201). Rollers (203) are rotatably connected to the bottom of each sliding frame (202) via bearings. An adjustment assembly (21) is provided inside the frame (201). Connecting rods (204) are fixedly connected to the inner walls of both the front and rear ends of the frame (201). Telescopic rods (205) are rotatably connected to the outer walls of each connecting rod (204) via bearings. The ends of the two telescopic rods (205) are located near the sliding frames (202). All are rotatably connected to the sliding frame (202) via bearings. The inner wall of the frame (201) is fixedly connected to the second placement plate (206). The second placement plate (206) has slots (2011) on both sides and bottom at the central axis. The outer wall of the adjustment component (21) is fixedly connected to the second connecting rod (207). The outer wall at the central axis of the second connecting rod (207) is fixedly connected to the base (208). The end of the base (208) away from the second placement plate (206) is movably connected to the cutting blade (209). The top of the cutting blade (209) is fixedly connected to the first elastic component (2010). The top of the first elastic component (2010) is fixedly connected to the base (208). The adjustment component (21) includes a base column (211), the bottom of which is fixedly connected to the base plate (1), an annular plate (212) is fixedly connected to the top of the base column (211), a sliding column (213) is fixedly connected to the top of the annular plate (212), a connecting plate (214) is fixedly connected to the top of the sliding column (213), an auxiliary component (22) is fixedly connected to the inner wall of the connecting plate (214), the bottom of the connecting plate (214) is fixedly connected to the placement plate (206), a push rod (215) is fixedly connected to the top of the base plate (1), a connecting plate (216) is fixedly connected to the top of the push rod (215), a U-shaped frame (217) is fixedly connected to the outer wall of the connecting plate (216), and a slider (218) is fixedly connected to the outer wall of the U-shaped frame (217).

2. The GCr15 bearing steel pipe batch cutting device according to claim 1, characterized in that: The inner wall of the slider (218) is movably connected to the sliding column (213). The top of the U-shaped frame (217) is fixedly connected to the connecting plate (219). Both the front and rear ends of the connecting plate (219) are rotatably connected to the sleeve (2110) through bearings. The outer wall of the sleeve (2110) is fitted with a conveyor belt (2111). The two sleeves (2110) are rotatably connected through the conveyor belt (2111).

3. The GCr15 bearing steel pipe batch cutting device according to claim 2, characterized in that: The outer wall of the connecting plate three (219) is fixedly connected to the bracket one (2112), and the inner wall of the bracket one (2112) away from the connecting plate three (219) is fixedly connected to the motor one (2113).

4. The GCr15 bearing steel pipe batch cutting device according to claim 3, characterized in that: The output end of the motor (2113) is fixedly connected to the sleeve (2110) located on the rear side. The outer wall of the slider (218) is fixedly connected to the U-shaped frame (2114). The inner wall of the U-shaped frame (2114) is fixedly connected to the side plate (2115). The outer wall of the side plate (2115) is fixedly connected to the connecting rod (207).

5. The GCr15 bearing steel pipe batch cutting device according to claim 4, characterized in that: The top of the U-shaped frame 2 (2114) is fixedly connected to an arc plate (2116). The top of the arc plate (2116) is rotatably connected to the telescopic rod 1 (205) via a bearing. The top of the arc plate (2116) is fixedly connected to a motor 2 (2117). The output end of the motor 2 (2117) is fixedly connected to a sleeve 2 (2118). The inner wall of the arc plate (2116) is rotatably connected to a roller 2 (2119) via a bearing. The outer wall of the roller 2 (2119) is fitted with a belt (2120). The sleeve 2 (2118) is rotatably connected to the roller 2 (2119) via the belt (2120).

6. The GCr15 bearing steel pipe batch cutting device according to claim 5, characterized in that: The auxiliary component (22) includes a second bracket (221), the outer wall of which is fixedly connected to a first connecting plate (214) and the outer wall of which is fixedly connected to a second placement plate (206). The end of the second bracket (221) away from the second placement plate (206) is rotatably connected to a second telescopic rod (222) via a bearing. The end of the second telescopic rod (222) away from the second bracket (221) is rotatably connected to a connecting column (223) via a bearing. The inner wall of the first U-shaped frame (217) is fixedly connected to the connecting column (223). The end of the second telescopic rod (222) away from the connecting column (223) is fixedly connected to a third connecting rod (224). The end of the third connecting rod (224) away from the second telescopic rod (222) is rotatably connected to a third telescopic rod (225) via a bearing.

7. A batch cutting device for GCr15 bearing steel pipes according to claim 6, characterized in that: The inner wall of the second bracket (221) is fixedly provided with a track (226), and the outer wall of the track (226) is movably connected with a slider (227). The end of the slider (227) away from the second placement plate (206) is fixedly connected with a spring (228). The end of the spring (228) away from the slider (227) is fixedly connected to the second bracket (221). The top of the slider (227) is fixedly connected with a connecting frame (229). The end of the connecting frame (229) away from the slider (227) is rotatably connected to the telescopic rod (225) through a bearing. The end of the slider (227) away from the spring (228) is fixedly connected with a telescopic column (2210). The inner wall of the end of the telescopic column (2210) away from the slider (227) is rotatably connected with a roller (2211) through a bearing.

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