Steel plate circular hole cutting device for manufacturing speed reducer

Abstract

The invention relates to the technical field of cutting devices, and provides a steel plate round hole cutting device for speed reducer manufacturing, which comprises a cutting rack, a transverse self-moving rack is slidably mounted on the cutting rack along the Y axis, a parallel self-moving sliding table is slidably mounted on the transverse self-moving rack, and a vertical self-moving rack is slidably mounted on the side part of the parallel self-moving sliding table along the Z axis; the hoisting connecting column is fixedly installed at the bottom of the vertical self-moving rack, a driven gear is coaxially and rotatably installed at the bottom of the hoisting connecting column, the rotary hole cutting assembly is installed at the bottom of the driven gear, and a cutting nozzle is arranged on the rotary hole cutting assembly; by means of the technical scheme, the technical problem that in the prior art, when a large-size round hole is cut, X-axis and Y-axis movement deviation is caused by abrasion of a guide rail or a lead screw, the edge of the round hole is in an irregular shape when the round hole is cut, and therefore the machining precision is reduced is solved.

Description

Technical Field

[0001] Embodiments of the present disclosure relate to the technical field of cutting devices, and specifically, to a steel plate round hole cutting device for reducer manufacturing. Background Art

[0002] Cutting round holes in steel plates for reducer manufacturing refers to the process of cutting the steel plates into round hole shapes during the manufacturing of reducers, so as to form the dimensions and shapes required for reducer components. In reducer manufacturing, components such as reducer housings often require precise round holes to install parts such as bearings and shafts to ensure the normal operation of the reducer.

[0003] When cutting round holes in steel plates, generally, a numerical control system is used to control the cutting head to move along the set round hole trajectory. At the same time, during the cutting process, the height of the flame needs to be adjusted in real time to maintain a stable output of the oxygen flow, oxidize and blow away the molten metal to achieve the cutting of the round hole.

[0004] However, when cutting round holes in steel plates, generally, the cooperation of XY-axis movement is used to make the cutting nozzle move along a circular path, so as to cut round holes. If the guide rail or lead screw is worn, resulting in XY-axis movement deviation, this will greatly affect the trajectory accuracy and lead to insufficient mechanical accuracy of the round hole. In this way, it is easy to appear irregular shapes such as wavy or serrated edges of the round hole during cutting. Especially when cutting large-diameter round holes, this situation will be more obvious, making it difficult for the flame cutting machine to handle the processing situation with high dimensional accuracy when cutting round holes in steel plates. Summary of the Invention To overcome the above defects, embodiments of the present disclosure provide a steel plate round hole cutting device for reducer manufacturing, which solves the technical problem in the prior art that when cutting round holes with larger sizes, due to the wear of the guide rail or lead screw, resulting in XY-axis movement deviation, irregular shapes will appear at the edges of the cut round holes, thereby reducing the processing accuracy.

[0005] The technical solution of the present disclosure is as follows: A steel plate round hole cutting device for reducer manufacturing includes a cutting frame. A transverse self-moving frame is slidably installed on the cutting frame along the Y-axis. A parallel self-moving slide is slidably installed on the transverse self-moving frame. The parallel self-moving slide moves along the X-axis. A vertical self-moving frame is slidably installed on the side of the parallel self-moving slide along the Z-axis. It further includes: A hoisting connection column, the hoisting connection column is fixedly installed at the bottom of the vertical self-moving frame, and a driven gear is coaxially rotatably installed at the bottom of the hoisting connection column; Rotary cutting hole assembly, the rotary cutting hole assembly is installed at the bottom of the driven gear, and a cutting nozzle is arranged on the rotary cutting hole assembly, which is used to adjust the distance between the cutting nozzle and the axis position of the driven gear, so as to adjust the size of the circular hole and cut the circular hole; Cutting positioning assembly, the cutting positioning assembly is installed inside the rotary cutting hole assembly, and is used to fix the position of the cutting device after determining the size of the circular hole to be cut.

[0006] On the basis of the foregoing solution, the rotary cutting hole assembly includes: Rotary frame, the rotary frame is fixedly installed at the bottom of the driven gear, and the central position of the rotary frame coincides with the axis position of the driven gear; Among them, a sliding area and driving areas at both ends of the sliding area are arranged inside the rotary frame, and an assembly area is also arranged between the driving areas on both sides and the sliding area; Chute, the chute is opened at the bottom of the sliding area, and the chute is located on one side of the central position of the sliding area; Position-adjusting sliding frame, the position-adjusting sliding frame is slidably installed on the chute, and the cutting nozzle is fixedly installed on the position-adjusting sliding frame; Balancing position-adjusting part, the balancing position-adjusting part is installed inside the rotary frame and is used to adjust the position of the position-adjusting sliding frame on the chute; Rotary cutting part, the rotary cutting part is installed on the vertical self-moving frame and is used to drive the rotary frame to rotate with the driven gear as the center of the circle.

[0007] On the basis of the foregoing solution, the balancing position-adjusting part includes: First driving rotation motor, the first driving rotation motor is fixedly installed inside both of the driving areas; Bidirectional screw rod, the bidirectional screw rod is rotatably installed inside the sliding area, and one end of the bidirectional screw rod is coaxially and fixedly connected to the output end of one of the first driving rotation motors; Position-adjusting nut, the position-adjusting nut is threadedly sleeved on the bidirectional screw rod, and the position-adjusting nut is fixedly connected to the position-adjusting sliding frame.

[0008] On the basis of the foregoing solution, it further includes: Following nut, the following nut is threadedly sleeved on the bidirectional screw rod, and the following nut and the position-adjusting nut are symmetrically arranged; Counterweight, the counterweight is slidably installed inside the rotary frame, the counterweight is fixedly connected to the following nut, and the moving directions of the counterweight and the position-adjusting sliding frame are opposite.

[0009] On the basis of the foregoing solution, the rotary cutting part includes: The second driving motor is fixedly installed on the vertical self-shifting frame; The driving gear is coaxially and fixedly installed at the output end of the second driving motor, and the driving gear meshes with the driven gear; The origin fixing member is fixedly installed on the vertical self-shifting frame and is used to fix the relative positions of the driven gear and the hoisting connection column.

[0010] On the basis of the foregoing solution, the origin fixing member includes: The electric cylinder is fixedly installed at the bottom of the vertical self-shifting frame; The fork-shaped fixing frame is fixedly installed at the output end of the electric cylinder; The positioning grooves are symmetrically formed in two side walls at the bottom of the driven gear, and the two positioning grooves are adapted to the fork-shaped fixing frame.

[0011] On the basis of the foregoing solution, the cutting positioning assembly includes: The limiting frames are symmetrically and fixedly installed at the top of the position-adjusting sliding frame; The camshafts are rotatably installed inside the two limiting frames; The driving shafts are symmetrically and rotatably installed inside the sliding area, and the two driving shafts are coaxially and slidably connected to the two camshafts respectively; The first laser probe is fixedly installed at the bottom of the rotating frame, and the axis position of the first laser probe coincides with that of the driven gear; The second laser probe is fixedly installed at one end of the bottom of the rotating frame; The locking part is installed inside the limiting frame and is used to fix the relative positions of the position-adjusting sliding frame and the sliding groove; The transmission part is installed in the assembly area and is used to drive the two driving shafts to rotate simultaneously.

[0012] On the basis of the foregoing solution, the locking part includes: The locking frames are slidably installed inside the two limiting frames, and the inner top wall of the locking frame abuts against the camshaft; The springs are fixedly installed between the top of the locking frame and the inner top wall of the limiting frame; The rectangular rods are arranged at the bottoms of the two driving shafts, the two rectangular rods are fixedly installed in the sliding area, and the rectangular rods are located between the inner bottom wall of the locking frame and the camshaft.

[0013] On the basis of the foregoing solution, a plurality of strip-shaped protrusions are equidistantly arranged on the inner bottom wall of each of the locking racks. The direction of the strip-shaped protrusions is the same as the moving direction of the position-adjusting sliding rack. A plurality of strip-shaped grooves are equidistantly formed at the bottom of each of the rectangular rods. The strip-shaped protrusions are adapted to the strip-shaped grooves and are locked to each other when combined.

[0014] On the basis of the foregoing solution, the transmission part includes: Rotating drive gears. Two of the rotating drive gears are rotatably installed inside one of the assembly areas. The two rotating drive gears are coaxially and fixedly connected to the two drive shafts respectively; An intermediate gear. The intermediate gear is rotatably installed inside the assembly area. The intermediate gear meshes with the two rotating drive gears respectively. The intermediate gear is coaxially and fixedly connected to the output end of the other first rotating drive motor.

[0015] The beneficial effects of the embodiments of the present disclosure are as follows: 1. In the present disclosure, while adjusting the position-adjusting sliding rack along the sliding groove, the follower nut pushes the counterweight to move synchronously in the opposite direction to maintain the balance of the system. When cutting a circular hole with a relatively large size, there will be no problem that the cutting trajectory deviates due to the relatively large weight on one side of the rotating rack, ensuring the stability of the cutting process and the roundness of the circular hole, and improving the cutting accuracy.

[0016] 2. In the present disclosure, the camshaft pushes the locking rack to move inside the limit rack until the strip-shaped protrusions on the inner bottom wall of the locking rack contact and press against the strip-shaped grooves at the bottom of the rectangular rod, then the drive shaft can be stopped from rotating and the position of the camshaft can be fixed. With the cooperation between the strip-shaped protrusions and the strip-shaped grooves, the relative position between the rectangular rod and the limit rack can be fixed, thereby fixing the relative position between the position-adjusting sliding rack and the sliding groove, and then the position of the cutting nozzle can be fixed during the cutting process, ensuring that the cutting nozzle always moves along a circular path during the cutting process.

[0017] 3. In the present disclosure, after the cutting is completed, it is necessary to rotate the rotating rack back to its original position. At this time, as the rotating rack rotates, the two symmetrically arranged positioning grooves on the driven gear respectively correspond to the two protrusions of the fork-shaped fixing frame. At this time, the electric cylinder is started to drive the fork-shaped fixing frame to re-enter the positioning groove, and the electric cylinder contracts and locks, then the driven gear can be fixed in the initial position, providing a stable reference for the next cutting, improving the positioning speed, avoiding adjustment errors, ensuring the accuracy and consistency of continuous cutting, and being suitable for continuous batch processing.

[0018] 4. In the present disclosure, through the setting of the rotary cutting hole assembly, the bidirectional screw drives the position-adjusting sliding frame and the counterweight to move in opposite directions, offsetting the moment imbalance during the adjustment of the cutting nozzle position, ensuring the stability of the center of gravity of the rotary frame. Especially when cutting large-diameter round holes, it can still avoid problems such as "tail whipping" or "ovalization" caused by weight offset. At the same time, through the cooperation of the cutting positioning assembly, the locking frame is pressed tightly by the camshaft drive, and the strip-shaped protrusions are embedded in the grooves to form a constraint, thereby effectively suppressing the displacement deviation during the cutting process, avoiding irregular shapes at the edges of the round holes, and improving the processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following will briefly introduce the drawings required for the description of the embodiments of the present disclosure. Obviously, the drawings described below are only some exemplary embodiments of the present disclosure. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the content of the exemplary embodiments of the present disclosure and these drawings.

[0020] Figure 1 It is a schematic structural diagram of the whole in the present invention; Figure 2 It is a schematic structural diagram of the cooperation between the rotary cutting hole assembly and the cutting positioning assembly in the present invention; Figure 3 It is a schematic cross-sectional structural diagram of the cooperation between the rotary cutting hole assembly and the cutting positioning assembly in the present invention; Figure 4 It is a schematic structural diagram of the cooperation between the rotary cutting hole assembly and the cutting positioning assembly from another angle in the present invention; Figure 5 It is a schematic cross-sectional structural diagram of the cooperation between the balance position-adjusting part and the cutting positioning assembly in the present invention; Figure 6 It is a schematic cross-sectional structural diagram of the balance position-adjusting part in the present invention; Figure 7 It is a schematic cross-sectional structural diagram of the rotary cutting part in the present invention; Figure 8 It is a schematic cross-sectional structural diagram of the cutting positioning assembly in the present invention; Figure 9 It is a schematic cross-sectional structural diagram of the locking part in the present invention.

[0021] In the figure: 1. Cutting frame; 2. Transverse self-shifting frame; 3. Parallel self-shifting slide; 4. Vertical self-shifting frame; 5. Lifting connection column; 6. Driven gear; 7. Cutting nozzle; 8. Rotating frame; 9. Chute; 10. Position-adjusting sliding frame; 11. First rotation drive motor; 12. Bidirectional screw; 13. Position-adjusting nut; 14. Follow-up nut; 15. Counterweight; 16. Second rotation drive motor; 17. Driving gear; 18. Electric cylinder; 19. Fork-shaped fixing frame; 20. Positioning groove; 21. Limit frame; 22. Camshaft; 23. Driving shaft; 24. First laser probe; 25. Second laser probe; 26. Locking frame; 27. Spring; 28. Rectangular rod; 29. Strip-shaped protrusion; 30. Strip-shaped groove; 31. Rotation driving gear; 32. Intermediate gear. Detailed implementation manners

[0022] The following further elaborates on the present disclosure in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are merely for explaining the present disclosure and not for limiting the present disclosure.

[0023] To simplify the drawings, only the parts related to the disclosure are schematically shown in each figure, and they do not represent the actual structure of the product. Additionally, to simplify the drawings for easy understanding, in some figures, for components with the same structure or function, only one of them is schematically shown, or only one of them is labeled. In this document, "one" not only means "only this one" but also can mean "more than one" situation, and "several" includes "two" and "more than two".

[0024] In this document, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0025] In the present disclosure, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature can include the direct contact between the first and second features, or can also include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over", and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "beneath", and "under" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the first feature has a lower horizontal height than the second feature.

[0026] In the description of this embodiment, the orientation or positional relationships such as "upper", "lower", "left", and "right" are based on the orientation or positional relationships shown in the drawings. They are only for the convenience of description and simplifying the operations, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be construed as a limitation to the present disclosure.

[0027] In addition, in the description of this application, the terms "first", "second", etc. are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0028] As Figures 1 to 9 shown, it shows a steel plate round hole cutting device for the manufacture of a speed reducer in an embodiment of the present disclosure, including a cutting machine frame 1. A transverse self-shifting machine frame 2 is slidably installed on the cutting machine frame 1 along the Y-axis. A parallel self-shifting slide 3 is slidably installed on the transverse self-shifting machine frame 2. The parallel self-shifting slide 3 moves along the X-axis. A vertical self-shifting machine frame 4 is slidably installed on the side of the parallel self-shifting slide 3 along the Z-axis. It further includes a hoisting connection column 5, a rotary hole cutting assembly, and a cutting positioning assembly. The hoisting connection column 5 is fixedly installed at the bottom of the vertical self-shifting machine frame 4. A driven gear 6 is coaxially rotatably installed at the bottom of the hoisting connection column 5. The rotary hole cutting assembly is installed at the bottom of the driven gear 6. A cutting nozzle 7 is provided on the rotary hole cutting assembly, which is used to adjust the distance between the cutting nozzle 7 and the axis position of the driven gear 6, so as to adjust the size of the round hole and cut the round hole. The rotary hole cutting assembly includes a rotary machine frame 8, a chute 9, an adjustment sliding frame 10, a balance adjustment part, and a rotary cutting part. The rotary machine frame 8 is fixedly installed at the bottom of the driven gear 6. The center position of the rotary machine frame 8 coincides with the axis position of the driven gear 6. Among them, a sliding area and driving areas at both ends of the sliding area are provided inside the rotary machine frame 8. An assembly area is also provided between the driving areas on both sides and the sliding area. The chute 9 is opened at the bottom of the sliding area. The chute 9 is located on one side of the center position of the sliding area. The adjustment sliding frame 10 is slidably installed on the chute 9. The cutting nozzle 7 is fixedly installed on the adjustment sliding frame 10. The balance adjustment part is installed inside the rotary machine frame 8 and is used to adjust the position of the adjustment sliding frame 10 on the chute 9. The rotary cutting part is installed on the vertical self-shifting machine frame 4 and is used to drive the rotary machine frame 8 to rotate with the driven gear 6 as the center of the circle.

[0029] Specifically, when cutting a steel plate, place the steel plate on the cutting frame 1. Through the settings of the lateral self-shifting frame 2 and the parallel self-shifting slide 3, the front, back, left, and right directions of the cutting nozzle 7 can be adjusted. Through the setting of the vertical self-shifting frame 4, the position of the nozzle in the height direction can be adjusted until the distance between the nozzle and the steel plate to be cut is adjusted properly. Then, open and adjust the corresponding valves, and oxygen and fuel gas will enter the nozzle in a certain proportion to form a stable neutral flame, oxidizing flame, or carburizing flame, providing a suitable heat source for cutting. Then, the cutting of the steel plate can be started. Through the settings of the lateral self-shifting frame 2 and the parallel self-shifting slide 3, the steel plate can be cut. When a round hole needs to be cut, first align the center position of the lifting connection column 5 with the center of the circle of the round hole to be cut. Then, start the balance adjustment part, and adjust the adjustment sliding frame 10 to move along the sliding groove 9, so as to adjust the distance between the cutting nozzle 7 and the axis position of the lifting connection column 5, thereby adjusting the size of the round hole. After adjusting the position of the adjustment sliding frame 10, the relative position between the adjustment sliding frame 10 and the sliding groove 9 can be fixed through the cutting positioning component, and then the cutting of the round hole can be started. At this time, the nozzle continuously provides heat, and at the same time, the rotary cutting part stably drives the driven gear 6 to rotate, thereby driving the cutting nozzle 7 on the rotary frame 8 to rotate around the axis of the lifting connection column 5 until the cutting of the round hole is completed. Then, stop the rotation, loosen the cutting positioning component, and then repeat the above steps to cut round holes of different sizes.

[0030] As described above, as Figure 5 , Figure 6 shown, the balance adjustment part includes a first driving motor 11, a bidirectional screw 12, and an adjustment nut 13. The first driving motors 11 are fixedly installed inside both driving areas. The bidirectional screw 12 is rotatably installed inside the sliding area. One end of the bidirectional screw 12 is coaxially and fixedly connected to the output end of one of the first driving motors 11. The adjustment nut 13 is threadedly sleeved on the bidirectional screw 12, and the adjustment nut 13 is fixedly connected to the adjustment sliding frame 10. It also includes a follower nut 14 and a counterweight 15. The follower nut 14 is threadedly sleeved on the bidirectional screw 12, and the follower nut 14 is symmetrically arranged with the adjustment nut 13. The counterweight 15 is slidably installed inside the rotary frame 8, and the counterweight 15 is fixedly connected to the follower nut 14. The moving directions of the counterweight 15 and the adjustment sliding frame 10 are opposite.

[0031] Specifically, when adjusting the position of the cutting nozzle 7, the first driving motor 11 is started. The first driving motor 11 drives the bidirectional screw 12 to rotate, and the position-adjusting nut 13 moves accordingly, pushing the position-adjusting sliding frame 10 to be precisely adjusted along the sliding groove 9. At the same time, the follower nut 14 and the counterweight 15 move synchronously in the opposite direction to maintain the balance of the system. When cutting a relatively large round hole, high cutting accuracy and stability can still be maintained, and the problem of cutting trajectory deviation caused by the relatively large weight on one side of the rotating frame 8 will not occur, thereby ensuring the stability of the cutting process and the roundness of the round hole, and ensuring the cutting quality.

[0032] As described above, Figure 7 As shown in the figure, the rotary cutting part includes a second driving motor 16, a driving gear 17 and an origin fixing member. The second driving motor 16 is fixedly installed on the vertical self-moving frame 4. The driving gear 17 is coaxially and fixedly installed at the output end of the second driving motor 16. The driving gear 17 meshes with the driven gear 6. An origin fixing member is fixedly installed on the vertical self-moving frame 4 for fixing the relative positions of the driven gear 6 and the hoisting connection column 5.

[0033] Specifically, during the process of cutting a round hole, it is necessary to drive the rotating frame 8 to rotate. At this time, the second driving motor 16 is started. The second driving motor 16 drives the driven gear 6 to rotate stably through the driving gear 17, so as to realize the smooth rotation of the rotating frame 8 and ensure that the cutting nozzle 7 cuts precisely along the predetermined trajectory. After cutting is completed, in order to maintain the cutting accuracy of other parts, it is necessary to reset the rotating frame 8 to the origin and lock the position through the origin fixing member, so that no matter which position the rotating frame 8 is in after rotation, the initial position can be found and stably fixed.

[0034] As described above, Figure 7 As shown in the figure, the origin fixing member includes an electric cylinder 18, a fork-shaped fixing frame 19 and a positioning groove 20. The electric cylinder 18 is fixedly installed at the bottom of the vertical self-moving frame 4. The output end of the electric cylinder 18 is fixedly installed with a fork-shaped fixing frame 19. Two positioning grooves 20 are symmetrically opened on the bottom side wall of the driven gear 6, and the two positioning grooves 20 are adapted to the fork-shaped fixing frame 19.

[0035] Specifically, before cutting the round hole, the fork-shaped fixing frame 19 is adapted to the positioning groove 20 at this time. When cutting the round hole, the fork-shaped fixing frame 19 disengages from the positioning groove 20 under the action of the electric cylinder 18 to ensure the free rotation of the rotating frame 8. After the cutting is completed, it is necessary to rotate the rotating frame 8 back to its original position. At this time, as the driven gear 6 of the rotating frame 8 rotates, the two symmetrically arranged positioning grooves 20 on the driven gear 6 respectively correspond to the two protrusions of the fork-shaped fixing frame 19. At this time, start the electric cylinder 18 to drive the fork-shaped fixing frame 19 to re-enter the positioning groove 20, and the electric cylinder 18 contracts and locks, so that the driven gear 6 can be fixed in the initial position, ensuring that the rotating frame 8 is accurately reset to the initial position, providing a stable reference for the next cutting, and ensuring the accuracy and consistency of continuous cutting.

[0036] As Figure 8 , Figure 9 shown, the cutting positioning assembly is installed inside the rotary hole cutting assembly and is used to fix the position of the cutting device after determining the size of the round hole to be cut. The cutting positioning assembly includes a limit frame 21, a camshaft 22, a driving shaft 23, a first laser probe 24, a second laser probe 25, a locking part and a transmission part. Two limit frames 21 are symmetrically and fixedly installed on the top of the position adjustment sliding frame 10. Camshafts 22 are rotatably installed inside the two limit frames 21. Two driving shafts 23 are symmetrically and rotatably installed inside the sliding area. The two driving shafts 23 are coaxially and slidably connected to the two camshafts 22 respectively. A first laser probe 24 is fixedly installed at the bottom of the rotating frame 8. The axis position of the first laser probe 24 coincides with that of the driven gear 6, and is fixed at one end of the bottom of the rotating frame 8. The locking part is installed inside the limit frame 21 and is used to fix the relative position of the position adjustment sliding frame 10 and the sliding groove 9. The transmission part is installed in the assembly area and is used to drive the two driving shafts 23 to rotate simultaneously.

[0037] Specifically, when a round hole needs to be cut, through the cooperation of the horizontally self - moving frame 2 and the parallel self - moving slide 3, the first laser probe 24 at the bottom of the rotating frame 8 can accurately align with the center of the round hole to be cut, thus finding the position of the round hole. Then, according to the size of the round hole, the position of the position - adjusting sliding frame 10 is adjusted. At this time, relative sliding occurs between the camshaft 22 and the driving shaft 23. Through the setting of the second laser probe 25, after detecting that the position - adjusting sliding frame 10 is adjusted to the predetermined position, the first driving motor 11 with its output end connected to the bidirectional screw 12 can be turned off, and then another first driving motor 11 is started. Thus, through the setting of the transmission part, the two driving shafts 23 are driven to rotate simultaneously, thereby driving the camshafts 22 in the two limiting frames 21 to rotate simultaneously, so as to adjust the position of the locking part, and then the relative position between the position - adjusting sliding frame 10 and the chute 9 can be fixed, ensuring the accurate positioning of the cutting nozzle 7. The first laser probe 24 and the second laser probe 25 work together to monitor the cutting position in real - time. The transmission part drives the camshaft 22 and the driving shaft 23 to rotate synchronously, precisely controlling the cutting trajectory, thereby realizing high - precision and high - efficiency cutting of round holes.

[0038] As described above, as Figure 8 , Figure 9 shown, the locking part includes a locking frame 26, a spring 27 and a rectangular rod 28. The locking frames 26 are slidably installed inside the two limiting frames 21. The inner top wall of the locking frame 26 abuts against the camshaft 22. A spring 27 is fixedly installed between the top of the locking frame 26 and the inner top wall of the limiting frame 21. Rectangular rods 28 are provided at the bottoms of the two driving shafts 23. The two rectangular rods 28 are fixedly installed in the sliding area. The rectangular rod 28 is located between the inner bottom wall of the locking frame 26 and the camshaft 22. A plurality of strip - shaped protrusions 29 are equidistantly arranged on the inner bottom wall of each locking frame 26. The direction of the strip - shaped protrusions 29 is the same as the moving direction of the position - adjusting sliding frame 10. A plurality of strip - shaped grooves 30 are equidistantly opened at the bottom of each rectangular rod 28. The strip - shaped protrusions 29 are adapted to the strip - shaped grooves 30 and are locked with each other when combined.

[0039] Specifically, when the position of the position - adjusting sliding frame 10 needs to be locked, as the camshaft 22 rotates, the camshaft 22 pushes the locking frame 26 to move inside the limiting frame 21. At this time, the spring 27 is compressed until the strip - shaped protrusions 29 on the inner bottom wall of the locking frame 26 contact and press against the strip - shaped grooves 30 at the bottom of the rectangular rod 28, then the driving shaft 23 can be stopped from rotating, thereby fixing the position of the camshaft 22. With the cooperation between the strip - shaped protrusions 29 and the strip - shaped grooves 30, the relative position between the rectangular rod 28 and the limiting frame 21 can be fixed, and thus the relative position between the position - adjusting sliding frame 10 and the chute 9 can be fixed. When the locking needs to be cancelled, the camshaft 22 is driven to rotate again, so that the locking frame 26 returns to its original position under the action of the spring 27. At this time, the strip - shaped protrusions 29 are separated from the strip - shaped grooves 30, and the locking can be cancelled.

[0040] The above-mentioned, such as Figure 8 As shown, the transmission part includes a driving gear 31 and an intermediate gear 32. Two driving gears 31 are rotatably installed inside one assembly area. The two driving gears 31 are respectively coaxially and fixedly connected to two driving shafts 23. The intermediate gear 32 is rotatably installed inside the assembly area. The intermediate gear 32 meshes with the two driving gears 31 respectively. The intermediate gear 32 is coaxially and fixedly connected to the output end of another first driving motor 11.

[0041] Specifically, when driving the two driving shafts 23 to rotate, the first driving motor 11 with its output end connected to the intermediate gear 32 drives the intermediate gear 32 to rotate. The intermediate gear 32 then drives the two driving gears 31 to rotate synchronously, ensuring the synchronous operation of the two driving shafts 23 and realizing the function of locking and adjusting the position of the sliding frame 10. When canceling the lock, reverse the intermediate gear 32 to reverse the camshaft 22, and the lock can be canceled.

[0042] The working principle or usage process of this application is as follows: When cutting a steel plate, place the steel plate on the cutting frame 1. Through the settings of the horizontal self - moving frame 2 and the parallel self - moving slide 3, the front - back, left - right directions of the cutting nozzle 7 can be adjusted. Through the setting of the vertical self - moving frame 4, the position of the nozzle in the height direction can be adjusted until the distance between the nozzle and the steel plate to be cut is adjusted properly. Then open and adjust the corresponding valves, and oxygen and fuel gas will enter the nozzle in a certain proportion to form a stable neutral flame, oxidation flame or carburizing flame, providing a suitable heat source for cutting. Through the settings of the horizontal self - moving frame 2 and the parallel self - moving slide 3, the steel plate can be cut.

[0043] When a round hole needs to be cut, first move the rotating frame 8 to the cutting position until the first laser probe 24 at the bottom of the rotating frame 8 accurately aligns with the center of the round hole to be cut, then the position of the round hole can be found. Then, according to the size of the round hole, adjust the position of the positioning and sliding frame 10. At this time, start the first driving motor 11 to drive the bidirectional screw 12 to rotate, and the positioning nut 13 moves accordingly, pushing the positioning and sliding frame 10 to be accurately adjusted along the chute 9. At the same time, the follower nut 14 and the counterweight 15 move synchronously in the opposite direction to maintain the balance of the system. When cutting a round hole with a larger size, high cutting accuracy and stability can still be maintained, and there will be no problem that the cutting trajectory deviates due to the larger weight on one side of the rotating frame 8. Under the action of the second laser probe 25, the position of the cutting head can be adjusted.

[0044] At this time, it is necessary to fix the relative position between the position-adjusting sliding frame 10 and the sliding groove 9. At this time, the first driving rotation motor 11 with its output end connected to the intermediate gear 32 drives the intermediate gear 32 to rotate. The intermediate gear 32 then drives the two driving rotation gears 31 to rotate synchronously, ensuring the synchronous operation of the two driving rotation shafts 23. As the camshaft 22 rotates, the camshaft 22 pushes the locking frame 26 to move within the limiting frame 21. At this time, the spring 27 is compressed until the strip-shaped protrusion 29 on the inner bottom wall of the locking frame 26 contacts and presses against the strip-shaped groove 30 at the bottom of the rectangular rod 28, which can stop the rotation of the driving rotation shaft 23, thereby fixing the position of the camshaft 22. With the cooperation between the strip-shaped protrusion 29 and the strip-shaped groove 30, the relative position between the rectangular rod 28 and the limiting frame 21 can be fixed, thereby fixing the relative position between the position-adjusting sliding frame 10 and the sliding groove 9.

[0045] Then start cutting the round hole. At this time, start the second driving rotation motor 16. The second driving rotation motor 16 drives the driven gear 6 to rotate stably through the driving gear 17, thereby realizing the smooth rotation of the rotating frame 8 and ensuring that the cutting nozzle 7 cuts precisely along the predetermined trajectory. After the cutting is completed, in order to maintain the cutting accuracy of other parts, it is necessary to reset the rotating frame 8 to the origin. At this time, as the driven gear 6 of the rotating frame 8 rotates, the two symmetrically arranged positioning grooves 20 on the driven gear 6 respectively correspond to the two protrusions of the fork-shaped fixing frame 19. At this time, start the electric cylinder 18 to drive the fork-shaped fixing frame 19 to re-enter the positioning groove 20. The electric cylinder 18 contracts and locks, which can fix the driven gear 6 in the initial position, ensuring that the rotating frame 8 is accurately reset to the initial position, providing a stable reference for the next cutting, and ensuring the accuracy and consistency of continuous cutting.

[0046] Then cancel the locking. At this time, reverse the intermediate gear 32 to reverse the camshaft 22, so that the locking frame 26 returns to its original position under the action of the spring 27. At this time, the strip-shaped protrusion 29 and the strip-shaped groove 30 are separated, and the locking can be cancelled. Then repeat the above steps to cut round holes of different sizes.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure and are not restrictive. Although the present disclosure has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present disclosure can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present disclosure, and they should all be covered within the scope of the claims of the present disclosure.

Claims

1. A steel plate circular hole cutting device for manufacturing a reducer, comprising a cutting frame (1), a lateral self-moving frame (2) is slidably mounted on the cutting frame (1) along the Y axis, a parallel self-moving slide (3) is slidably mounted on the lateral self-moving frame (2), the parallel self-moving slide (3) moves along the X axis, and a vertical self-moving frame (4) is slidably mounted on the side of the parallel self-moving slide (3) along the Z axis, characterized in that: Also includes: A lifting connection column (5), the lifting connection column (5) is fixedly mounted on the bottom of the vertical self-moving frame (4), and a driven gear (6) is coaxially mounted on the bottom of the lifting connection column (5); a rotary hole cutting assembly, the rotary hole cutting assembly being mounted on the bottom of the driven gear (6), the rotary hole cutting assembly being provided with a cutting nozzle (7) for adjusting the distance between the cutting nozzle (7) and the axis position of the driven gear (6), thereby adjusting the size of the circular hole and cutting the circular hole; A cutting positioning assembly is installed inside the rotary hole cutting assembly and is used to fix the position of the cutting device after the size of the circular hole to be cut is determined.

2. A steel plate circular hole cutting device for manufacturing a reducer according to claim 1, characterized in that: The rotary hole cutting assembly comprises: A rotating frame (8), the rotating frame (8) being fixedly mounted on the bottom of the driven gear (6), the center position of the rotating frame (8) being coincident with the axis position of the driven gear (6); The rotating frame (8) is provided with a sliding area and driving areas at both ends of the sliding area, and an assembly area is provided between the driving areas and the sliding areas on both sides; A slide groove (9), the slide groove (9) being opened at the bottom of the sliding area, and the slide groove (9) being located on one side of the center position of the sliding area; A position adjustment sliding frame (10), the position adjustment sliding frame (10) being slidably mounted on the slide groove (9), and the cutting nozzle (7) being fixedly mounted on the position adjustment sliding frame (10); A balancing and positioning part, the balancing and positioning part being installed inside the rotating frame (8) and used for adjusting the position of the positioning sliding frame (10) on the sliding groove (9); A rotating cutting unit, the rotating cutting unit is mounted on the vertical self-moving frame (4) and is used to drive the rotating frame (8) to rotate with the driven gear (6) as the center.

3. The steel plate circular hole cutting device for manufacturing a reducer according to claim 2, characterized in that: The balancing and positioning unit comprises: A first driving motor (11), wherein the first driving motor (11) is fixedly mounted inside the two driving areas; a bidirectional screw (12), the bidirectional screw (12) being rotatably mounted inside the sliding zone, one end of the bidirectional screw (12) being coaxially fixedly connected to an output end of one of the first drive motors (11); A positioning nut (13) is provided on the threaded sleeve of the bidirectional screw rod (12), and the positioning nut (13) is fixedly connected to the positioning sliding frame (10).

4. A steel plate circular hole cutting device for manufacturing a reducer according to claim 3, characterized in that: Also includes: A follower nut (14), wherein the threaded sleeve on the bidirectional screw (12) is provided with the follower nut (14), and the follower nut (14) and the adjusting nut (13) are symmetrically arranged; A counterweight (15), wherein the counterweight (15) is slidably mounted inside the rotating frame (8), the counterweight (15) is fixedly connected to the follower nut (14), and the movement directions of the counterweight (15) and the position adjustment sliding frame (10) are opposite.

5. The steel plate circular hole cutting device for manufacturing a reducer according to claim 4, characterized in that: The rotary cutting unit comprises: a second driving motor (16), wherein the second driving motor (16) is fixedly mounted on the vertical self-moving frame (4); A driving gear (17), the driving gear (17) being coaxially fixedly mounted on the output end of the second driving motor (16), the driving gear (17) being meshed with the driven gear (6); An origin fixing component is fixedly mounted on the vertical self-moving frame (4) and is used to fix the relative position of the driven gear (6) and the lifting connection column (5).

6. The steel plate circular hole cutting device for manufacturing a reducer according to claim 5, characterized in that: The origin fixing components include: An electric cylinder (18), the electric cylinder (18) being fixedly mounted on the bottom of the vertical self-moving frame (4); A fork-shaped fixing frame (19), the fork-shaped fixing frame (19) being fixedly mounted on the output end of the electric cylinder (18); A positioning groove (20), wherein two positioning grooves (20) are symmetrically provided on the bottom side wall of the driven gear (6), and the two positioning grooves (20) are adapted to fit the fork-shaped fixing frame (19).

7. A steel plate circular hole cutting device for manufacturing a reducer according to claim 6, characterized in that: The cutting positioning assembly comprises: A position limiting rack (21), two position limiting racks (21) are symmetrically and fixedly mounted on the top of the position adjusting sliding rack (10); A cam shaft (22), wherein the cam shaft (22) is rotatably mounted inside the two limit frames (21); A driving shaft (23), wherein two driving shafts (23) are symmetrically and rotatably mounted inside the sliding area, and the two driving shafts (23) are coaxially slidably connected to the two cam shafts (22) respectively; a first laser probe (24), the first laser probe (24) being fixedly mounted on the bottom of the rotating frame (8), the first laser probe (24) coinciding with the axis position of the driven gear (6); A second laser probe (25) fixedly mounted on one end of the bottom of the rotating frame (8); A locking portion, the locking portion being installed inside the position limiting frame (21) and being used to fix the relative position of the position adjusting sliding frame (10) and the sliding groove (9); A transmission part is installed in the assembly area and is used to drive the two drive shafts (23) to rotate simultaneously.

8. The steel plate circular hole cutting device for manufacturing a reducer according to claim 7, characterized in that: The locking portion comprises: A locking frame (26), wherein the locking frame (26) is slidably mounted inside the two limit frames (21), and the inner top wall of the locking frame (26) abuts against the cam shaft (22); A spring (27), wherein the spring (27) is fixedly mounted between the top of the locking frame (26) and the inner top wall of the limiting frame (21); A rectangular rod (28), the bottom of each of the two driving shafts (23) being provided with the rectangular rod (28), the two rectangular rods (28) being fixedly mounted in the sliding area, and the rectangular rod (28) being located between the inner bottom wall of the locking frame (26) and the cam shaft (22).

9. The steel plate circular hole cutting device for manufacturing a reducer according to claim 8, characterized in that: A plurality of strip-shaped protrusions (29) are arranged at equal distances on the inner bottom wall of each locking frame (26), and the direction of the strip-shaped protrusions (29) is the same as the moving direction of the adjustment sliding frame (10). A plurality of strip-shaped grooves (30) are arranged at equal distances on the bottom of each rectangular rod (28), and the strip-shaped protrusions (29) are adapted to fit the strip-shaped grooves (30), and when the two are combined, they are locked to each other.

10. The steel plate circular hole cutting device for manufacturing a reducer according to claim 9, characterized in that: The transmission part comprises: A driving gear (31), wherein two driving gears (31) are rotatably mounted inside one of the assembly areas, and the two driving gears (31) are coaxially fixedly connected to the two driving shafts (23) respectively; An intermediate gear (32) is rotatably mounted inside the assembly area, the intermediate gear (32) is respectively meshed with the two driving gears (31), and the intermediate gear (32) is coaxially fixedly connected to the output end of another of the first driving motors (11).

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