Automatic feeding and cutting equipment for quenching pipe

Abstract

The utility model relates to the field of automatic cutting equipment, in particular to quenching pipe automatic feeding and cutting equipment, which comprises a control system, a feeding device, a cutting device and a cut-off detection mechanism, and the feeding device, the cutting device and the cut-off detection mechanism are respectively in control connection with the control system. A cut-off detection mechanism is arranged to replace a correlation type photoelectric sensor in the prior art, and the cut-off detection mechanism specifically comprises a driven detection pressing wheel, a detection block and a proximity switch; a detection block and a proximity switch in the cut-off detection mechanism can be arranged far away from the cutting cavity or can be isolated from the cutting cavity, so that dust, water or other cooling liquid, sand and other impurities generated in the quenching pipe cutting process cannot affect detection of the proximity switch, and the accuracy of cut-off detection of the quenching pipe is guaranteed; automatic feeding and cutting of the quenching pipe are achieved, the production efficiency is improved, and the labor cost is saved.

Description

Technical Field

[0001] The utility model relates to the field of automatic cutting equipment, in particular to automatic feeding and cutting equipment for quenching tubes. Background Art

[0002] In the process of automated fixed-length cutting of long workpieces such as steel bars and pipes, a detection mechanism needs to be set up to detect whether the workpiece is completely cut, so as to determine whether the next feeding can be carried out based on the detection result. In the prior art, a through-beam photoelectric sensor is often used to sense whether the workpiece is cut; for example, Chinese utility model patent CN219634495U discloses a large-diameter pipe uncut detection device based on a pressure-feeding mechanism. Through the set pipe traction mechanism, cutting detection mechanism and pressure-feeding mechanism, the traction, cutting and pressure-feeding of the pipe after cutting can be realized, wherein the cutting detection mechanism includes a matched through-beam grating, which can detect whether the pipe cutting is completed, thereby avoiding damage to the pipe surface due to the uncut pipe during the extrusion production process and damage to the back-end automatic detection and packaging device.

[0003] Due to the high hardness of the quenching tube, water or other coolant needs to be added for cooling during the cutting process. During the cutting process, the quenching tube will produce dust, water or other coolant, sand and other substances, resulting in a relatively harsh environment in the entire cutting chamber. Therefore, the use of the through-beam photoelectric sensor in the existing technology is difficult to detect whether the quenching tube is cut, which is prone to misjudgment, thereby affecting the automatic feeding and cutting of the quenching tube.

[0004] Therefore, it is necessary to provide a technical solution to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide an automatic quenching tube cutting device, which can solve the technical problem that the conventional photoelectric sensor cannot accurately judge whether the quenching tube is cut, thereby affecting the automatic feeding and cutting of the quenching tube.

[0006] In order to solve the above technical problems, the utility model provides an automatic feeding and cutting device for quenching tubes, comprising a control system, a feeding device, a cutting device and a cutting detection mechanism, wherein the feeding device, the cutting device and the cutting detection mechanism are respectively connected to the control system;

[0007] The feeding device includes a first frame, on which a feeding mechanism and a first driving assembly are provided, the first driving assembly being used to drive the feeding mechanism to move forward and backward along the first frame, the feeding mechanism including a fixing assembly for fixing the quenching tube and a second driving assembly for driving the fixing assembly to rotate;

[0008] The cutting device is arranged at the discharge end of the feeding device, and the cutting device includes a second frame, and the second frame is provided with a cutting mechanism for cutting the quenching tube, and the cutting mechanism includes a grinding wheel;

[0009] The cutting detection mechanism includes a driven detection pressure wheel, a detection block and a proximity switch, the driven detection pressure wheel is rotatably arranged on the side of the grinding wheel away from the feeding device, the detection block is fixedly connected to one end of the driven detection pressure wheel, the proximity switch is arranged opposite to the outer peripheral side surface of the detection block, the driven detection pressure wheel can contact the surface of the quenching tube and the quenching tube can drive the driven detection pressure wheel and the detection block to rotate, and the minimum distance between each position of the outer peripheral side surface of the detection block and the proximity switch is at least partially different.

[0010] Furthermore, the cut-off detection mechanism includes a bracket, and both ends of the driven detection pressure wheel are rotatably connected to the bracket through a rotating shaft, one of the rotating shafts extends to the outside of the bracket and is fixedly connected to the detection block, and the proximity switch is fixed on the bracket.

[0011] Furthermore, the detection block includes an annular portion, a plurality of protrusions are evenly arranged on the circumferential side surface of the annular portion, and the annular portion is sleeved on the rotating shaft.

[0012] Furthermore, a protective cover is provided on the side of the bracket close to the detection block, and the detection block and the proximity switch are both provided in the protective cover.

[0013] Furthermore, the cut-off detection mechanism further includes a third driving assembly, wherein the third driving assembly is connected to the bracket, and the third driving assembly is used to drive the bracket away from or close to the quenching tube.

[0014] Furthermore, the cutting device also includes a bearing mechanism arranged on the second frame for supporting the quenching tube, and the bearing mechanisms are two and respectively located on both sides of the grinding wheel; the bearing mechanism includes a supporting base and two supporting rollers rotatably arranged on the supporting base.

[0015] Furthermore, the cutting device also includes a bearing plate for placing the quenching tube, two ends of the bearing plate are respectively arranged on the two bearing mechanisms, and two supporting rollers in the bearing mechanisms pass through the bearing plate and contact the quenching tube.

[0016] Furthermore, the feeding mechanism also includes a support seat, a slider is slidably arranged in the support seat, the fixing assembly and the second driving assembly are both arranged on the slider, and a fourth driving assembly for driving the slider to move up and down is arranged on the support seat.

[0017] Furthermore, a guide rail is provided on at least one side of the first frame, the guide rail is parallel to the feeding direction of the quenching tube, and a guide block is provided on the support seat to slide with the guide rail.

[0018] Furthermore, the cutting mechanism also includes a fifth driving assembly for driving the grinding wheel to rotate and a sixth driving assembly for driving the grinding wheel to move up and down.

[0019] The beneficial effects of the utility model are as follows:

[0020] By arranging a driven detection pressure wheel capable of contacting the surface of the quenching tube in the cutting detection mechanism, and one end of the driven detection pressure wheel is fixedly connected to the detection block, the driven detection pressure wheel is arranged on the side of the grinding wheel away from the feeding device. When the grinding wheel does not completely cut the quenching tube, the quenching tube located on the side of the grinding wheel away from the feeding device still rotates following the fixed component, and at the same time can drive the driven detection pressure wheel and the detection block to rotate synchronously. Since the minimum distance between each position of the outer peripheral side of the detection block and the proximity switch is at least partially different, at this time, the proximity switch can continuously detect the distance When the distance change signal is received, the proximity switch does not send a "cut" signal to the control system; when the quenching tube is completely cut, the quenching tube located on the side of the grinding wheel away from the feeding device cannot rotate with the fixed component, and the driven detection pressure wheel and the detection block stop rotating synchronously. At this time, the proximity switch cannot detect the distance change signal, and it is determined that the cut finished product part has been completely cut, and the proximity switch sends a "cut" signal to the control system; when the control system receives the "cut" signal, the control system controls the feeding device to feed the next cut, thereby realizing automatic feeding and cutting of the quenching tube. By providing a cut detection mechanism instead of the conventional through-beam photoelectric sensor, the detection block and proximity switch in the cut detection mechanism can be set away from the cutting chamber or can be isolated from the cutting chamber, so that dust, water or other coolants, sand and other impurities generated during the quenching tube cutting process will not affect the detection of the proximity switch, thereby ensuring the accuracy of the quenching tube cut detection, realizing automatic feeding and cutting of the quenching tube, improving production efficiency, and saving labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of the automated quenching tube cutting equipment of the present invention.

[0022] Figure 2 This is a partial structural diagram of the automatic quenching tube cutting equipment of the present utility model.

[0023] Figure 3 It is a structural schematic diagram of the feeding device of the present utility model.

[0024] Figure 4 It is a structural schematic diagram of the cutting device and the cutting detection mechanism of the utility model.

[0025] Figure 5 This is a schematic structural diagram of the cutting device and the cut-off detection mechanism of the present invention from another angle.

[0026] Figure 6 It is a structural schematic diagram of the cutting detection mechanism of the utility model.

[0027] Figure 7 for Figure 6 A in the figure is an enlarged structural diagram.

[0028] Description of reference numerals:

[0029] 1-feeding device; 10-quenching tube; 11-first frame; 12-feeding mechanism; 121-fixed component; 122-second drive component; 123-support seat; 124-slider; 125-fourth drive component; 13-first drive component; 14-guide rail; 15-guide block; 2-cutting device; 21-second frame; 22-carrying mechanism; 221-support base; 222-support roller; 23-cutting mechanism; 231-grinding wheel; 232-fifth drive component; 233-sixth drive component; 24-carrying plate; 3-cutting detection mechanism; 30-drive connecting block; 31-bracket; 32-driven detection pressure wheel; 33-detection block; 332-ring portion; 333-bump; 34-proximity switch; 35-rotating shaft; 36-protective cover; 37-third drive component; 38-mounting seat; 39-drive shaft. DETAILED DESCRIPTION

[0030] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to embodiments and drawings. The contents mentioned in the embodiments are not intended to limit the present invention.

[0031] like Figures 1 to 7 As shown, this embodiment provides an automatic feeding and cutting device for quenching tubes, comprising a control system (not shown), a feeding device 1, a cutting device 2, and a cutting detection mechanism 3. The feeding device 1, the cutting device 2, and the cutting detection mechanism 3 are all respectively connected to the control system;

[0032] The feeding device 1 includes a first frame 11, on which a feeding mechanism 12 and a first driving assembly 13 are provided. The first driving assembly 13 is used to drive the feeding mechanism 12 to move forward and backward along the first frame 11. The feeding mechanism 12 includes a fixing assembly 121 for fixing the quenching tube 10 and a second driving assembly 122 for driving the fixing assembly 121 to rotate.

[0033] The cutting device 2 is provided at the discharge end of the feeding device 1, and the cutting device includes a second frame 21, on which a cutting mechanism 23 for cutting the quenching tube 10 is provided, and the cutting mechanism 23 includes a grinding wheel 231;

[0034] The cutting detection mechanism 3 includes a driven detection pressure wheel 32, a detection block 33 and a proximity switch 34. The driven detection pressure wheel 32 is rotatably arranged on the side of the grinding wheel 231 away from the feeding device 1. The detection block 33 is fixedly connected to one end of the driven detection pressure wheel 32. The proximity switch 34 is arranged opposite to the outer peripheral side surface of the detection block 33. The driven detection pressure wheel 32 can contact the surface of the quenching tube 10 and the quenching tube 10 can drive the driven detection pressure wheel 32 and the detection block 33 to rotate. The minimum distance between each position of the outer peripheral side surface of the detection block 33 and the proximity switch 34 is at least partially different.

[0035] Specifically, the first drive assembly 13 may include a servo motor and a transmission gear provided on the feeding mechanism 12, the output end of the servo motor is connected to the transmission gear, and a rack meshing with the transmission gear is provided on one side of the first frame 11 along the conveying direction of the quenching tube 10. When the servo motor rotates, it drives the transmission gear to rotate, and the transmission gear meshes with the rack, thereby driving the feeding mechanism 12 to move back and forth on the first frame 11; of course, in other embodiments, the first drive assembly 13 may also adopt a drive mechanism such as a telescopic cylinder, a motor screw nut, etc. ; The second driving component 122 can be a driving motor, which is driven by the fixing component and connected to the fixing component. The driving motor drives the fixing component 121 to rotate, thereby driving the quenching tube 10 to rotate; the fixing component 121 can adopt an inclined wedge type internal support clamping mechanism, and the inclined wedge type internal support clamping mechanism is inserted into the interior of one end of the quenching tube 10. The driving member in the inclined wedge type internal support clamping mechanism drives the inclined wedge to expand outward, thereby pressing against the inner wall of the quenching tube 10 to achieve clamping and positioning of the quenching tube 10. Of course, in some other embodiments, the fixing component 121 can also be a positioning clamp.

[0036] In this embodiment, since the quenching tube 10 will rotate during the cutting process, a driven detection pressure wheel 32 that can contact the surface of the quenching tube 10 is provided in the cutting detection mechanism 3, and one end of the driven detection pressure wheel 32 is fixedly connected to the detection block 33. The driven detection pressure wheel 32 is provided on the side of the grinding wheel 231 away from the feeding device 1, and the grinding wheel 231 divides the quenching tube 10 into two parts, wherein the part away from the feeding device 1 is the cut product part, and the part close to the feeding device 1 is the main body part, that is, the driven detection pressure wheel 32 contacts the surface of the cut product part. When the grinding wheel 231 does not completely cut the cut product part from the main body part, the cut product part will rotate together with the main body part under the drive of the fixing component 121. When the cut product part rotates, it can drive the driven detection pressure wheel 32 to rotate, and the detection block 33 also follows the driven detection pressure wheel 32 The rotation movement is performed synchronously. Since the minimum distance between each position of the outer peripheral side of the detection block 33 and the proximity switch 34 is at least partially different, at this time, the proximity switch 34 can continuously detect the signal of the distance change, and the proximity switch 34 does not send a "cut" signal to the control system; when the cut finished product part is completely cut off, that is, the cut finished product part is separated from the main body, the cut finished product part cannot rotate with the main body, and the driven detection pressure wheel 32 stops rotating synchronously, and the detection block 33 also stops rotating synchronously. At this time, the proximity switch 34 does not detect the signal of the distance change, and it is determined that the cut finished product part has been completely cut off, and the proximity switch 34 sends a "cut" signal to the control system; when the control system receives the "cut" signal, the control system controls the feeding device 1 to feed the next cutting, thereby realizing the automatic feeding and cutting of the quenching tube 10. By providing a cut-off detection mechanism 3 instead of the through-beam photoelectric sensor in the prior art, the detection block 33 and the proximity switch 34 in the cut-off detection mechanism 3 can be arranged away from the cutting chamber or can be isolated from the cutting chamber, so that dust, water or other coolants, sand and other impurities generated during the quenching tube cutting process will not affect the detection of the proximity switch 34, thereby ensuring the accuracy of the quenching tube cut-off detection, realizing automatic feeding and cutting of the quenching tube, improving production efficiency and saving labor costs.

[0037] Furthermore, the cut-off detection mechanism 3 includes a bracket 31, and both ends of the driven detection pressure wheel 32 are rotatably connected to the bracket 31 through a rotating shaft 35, one of the rotating shafts 35 extends to the outside of the bracket 31 and is fixedly connected to the detection block 33, and the proximity switch 34 is fixed on the bracket 31. Specifically, Figure 6-7As shown, a mounting groove is provided through one end of the bracket 31 close to the quenching tube 10, and both ends of the driven detection pressure wheel 32 are connected to a rotating shaft 35, and the rotating shaft 35 is rotatably installed in the two side walls of the mounting groove through bearings, wherein the rotating shaft 35 on the side away from the grinding wheel 231 passes through the side wall of the mounting groove and extends to the outside of the bracket 31, and the detection block 33 is installed on the end of the rotating shaft 35 away from the bracket 31. Such a setting, on the one hand, facilitates the driven detection pressure wheel 32 to drive the detection block 33 to rotate, and on the other hand, the detection block 33 and the proximity switch 34 can be set away from the grinding wheel 231, thereby reducing the influence of impurities generated during the cutting process on the detection block 33 and the proximity switch 34.

[0038] Furthermore, if Figure 7 As shown, the detection block 33 includes an annular portion 332, with a plurality of protrusions 333 evenly disposed on the circumferential side of the annular portion 332. The annular portion 332 is sleeved onto the rotating shaft 35. In this embodiment, by evenly disposing the plurality of protrusions 333 on the circumferential side of the annular portion 332, the minimum distance between the proximity switch 34 and various positions on the outer circumference of the detection block 33 can be at least partially different. This enables the proximity switch 34 to sensitively detect whether the detection block 33 is rotating, thereby accurately and quickly determining whether the quench tube 10 has been cut. Of course, in other embodiments, the detection block 33 may also adopt other shapes, such as a gear shape, an elliptical shape, etc.

[0039] Furthermore, if Figure 4 As shown, a protective cover 36 is provided on the side of the bracket 31 near the detection block 33, and the detection block 33 and the proximity switch 34 are both disposed within the protective cover 36. In this embodiment, by providing the protective cover 36, the detection block 33 and the proximity switch 34 are both disposed within the protective cover, which can effectively isolate the detection block 33 and the proximity switch 34 from the cutting chamber. On the one hand, this can protect the proximity switch 34 and extend its service life. On the other hand, it can isolate the detection block 33 and the proximity switch 34 from the influence of impurities generated during the cutting process, thereby ensuring the accuracy of the detection.

[0040] Furthermore, if Figure 4 and 6As shown, the cut-off detection mechanism 3 further includes a third drive assembly 37, which is connected to the bracket 31 and is used to drive the bracket 31 away from or toward the quenching tube 10. Specifically, the cut-off detection mechanism 3 further includes a mounting base 38, which is fixedly connected to one side of the supporting mechanism 22. The third drive assembly 37 can be a driving cylinder, and the output end of the driving cylinder is rotatably connected to the driving connection block 30. The end of the driving connection block 30 away from the driving cylinder is fixedly connected to a transmission shaft 39. The transmission shaft 39 is arranged parallel to the central axis of the driven detection pressure wheel 32, and the transmission shaft 39 is rotatably connected to the mounting base 38. The end of the bracket 31 away from the mounting groove is mounted on the transmission shaft 39. When the output end of the driving cylinder performs a telescopic movement, it will drive the driving connection block 30 to rotate, thereby driving the transmission shaft 39 to rotate, and finally driving the bracket 31 to rotate, so that the driven detection pressure wheel 32 approaches or moves away from the surface of the quenching tube 10, so that the driven detection pressure wheel 32 can contact the surface of the quenching tube 10.

[0041] Furthermore, if Figure 4-5 As shown, the cutting device 2 further includes a bearing mechanism 22 disposed on the second frame 21 for supporting the quenching tube 10. The bearing mechanisms 22 are two and are located on both sides of the grinding wheel 231 respectively. The bearing mechanism 22 includes a support base 221 and two support rollers 222 rotatably disposed on the support base 221. In this embodiment, by providing bearing mechanisms on both sides of the grinding wheel 231, the quenching tube 10 located on both sides of the grinding wheel 231 can be supported during the cutting process of the grinding wheel 231, thereby preventing the quenching tube 10 from being bent and deformed due to stress. In addition, the support rollers 222 are provided in the bearing mechanism 22. During the rotation of the quenching tube 10, the support rollers 222 will also rotate accordingly, thereby reducing the frictional resistance between the quenching tube 10 and the bearing mechanism 22, and ensuring the normal rotation of the quenching tube 10.

[0042] Furthermore, if Figure 4-5As shown, the cutting device 2 also includes a support plate 24 for placing the quenching tube 10. The two ends of the support plate 24 are respectively mounted on the two support mechanisms 22, and the two support rollers 222 in the support mechanisms 22 pass through the support plate 24 to contact the quenching tube 10. In this embodiment, the provision of the support plate 24 above the two support mechanisms 22 further enhances the support for the quenching tube 10. Furthermore, when the length of the cut product portion of the quenching tube 10 is less than the distance between the two support mechanisms 22, and the end of the cut product portion away from the grinding wheel 231 cannot be supported on the support mechanism 22, the support plate 24 can support the cut product portion, thereby expanding the application range of the quenching tube automated feeding and cutting equipment of this embodiment. Furthermore, to ensure the function of the support rollers 222, the support plate 24 is provided with openings at positions corresponding to the support rollers 222, allowing the support rollers 222 to pass through the openings and contact the quenching tube 10.

[0043] Furthermore, if Figure 3 As shown, the feeding mechanism 12 further includes a support base 123, in which a slider 124 is slidably disposed. The fixing assembly 121 and the second drive assembly 122 are both disposed on the slider 124. A fourth drive assembly 125 is disposed on the support base 123 to drive the slider 124 up and down. In this embodiment, the provision of the slider 124 and the fourth drive assembly 125 allows the height of the fixing assembly 121 to be adjusted according to the diameter of the quenching tube 10 in actual production, thereby accommodating the processing of quenching tubes 10 of different diameters and improving applicability. Specifically, the support seat 123 includes a gantry frame, and the slider 124 is slidably arranged in the gantry frame. The fourth drive component 125 can adopt a drive mechanism such as a drive cylinder, a motor screw nut, etc. The fourth drive component 125 is installed on the top of the support seat 123, and its working end extends downward through the top of the support seat 123 and is connected to the top of the slider 124. A guide mechanism of the slide rail slider is provided between the slider 124 and the two side walls of the gantry frame. The fixed component 121 is installed on the end face of the slider 124 close to the cutting device 2, and the second drive component 122 is installed on the end face of the slider 124 away from the cutting device 2. The output end of the second drive component 122 passes through the slider 124 and is connected to the fixed component 121.

[0044] Furthermore, a guide rail 14 is provided on at least one side of the first frame 11, and the guide rail 14 is parallel to the feeding direction of the quenching tube 10. A guide block 15 that slides with the guide rail 14 is provided on the support seat 123. The guide block 15 cooperates with the guide rail 14 to ensure the movement direction of the feeding mechanism 12.

[0045] Furthermore, if Figure 3-4As shown, the cutting mechanism 23 further includes a fifth drive assembly 232 for driving the grinding wheel 231 to rotate and a sixth drive assembly 233 for driving the grinding wheel 231 to move up and down. Specifically, the fifth drive assembly 232 can be a drive motor, and the sixth drive assembly 233 can be a drive cylinder.

[0046] The automatic feeding and cutting method for quenching tubes using the automatic feeding and cutting equipment of any one of the above embodiments mainly includes the following steps:

[0047] S1: The quenching tube 10 to be cut is fixedly mounted on the fixing assembly 121 of the feeding mechanism 12. After the installation is completed, the control system controls the first driving assembly 13 to move, and the first driving assembly 13 drives the feeding mechanism 12 to move a certain distance in the direction of the cutting device 2;

[0048] S2: After the feeding mechanism 12 is in place, the control system controls the second driving assembly 122 to operate, and the second driving assembly 122 drives the fixed assembly 121 to rotate. The quenching tube 10 rotates synchronously with the fixed assembly 121. At the same time, the control system controls the driven detection pressure wheel 32 in the cutting detection mechanism 3 to move downward until it contacts the outer surface of the quenching tube 10. The driven detection pressure wheel 32 rotates synchronously with the quenching tube 10.

[0049] S3: The control system then controls the grinding wheel 231 in the cutting mechanism 23 to cut the quenching tube 10. When the quenching tube 10 is not cut, the quenching tube 10 located on the side of the grinding wheel 231 away from the feeding device 1 continues to rotate following the fixed component 121, and the driven detection pressure wheel 32 rotates synchronously. The detection block 33 also rotates synchronously following the driven detection pressure wheel 32. Since the minimum distance between each position of the outer peripheral side of the detection block 33 and the proximity switch 34 is at least partially different, at this time, the proximity switch 34 can continuously detect the distance change signal, and the proximity switch 34 does not send a "cut off" signal to the control system;

[0050] S4: When the quenching tube 10 is cut off, the quenching tube 10 located on the side of the grinding wheel 231 away from the feeding device 1 cannot rotate along with the fixed assembly 121, the driven detection pressure wheel 32 stops rotating synchronously, and the detection block 33 also stops rotating synchronously. At this time, the proximity switch 34 cannot detect the distance change signal, and the proximity switch 34 sends a "cut-off" signal to the control system;

[0051] S5: When the control system receives the "cut" signal, the control system controls the first drive assembly 13 to move again, and the first drive assembly 13 drives the feeding mechanism 12 to move a certain distance in the direction of the cutting device 2; steps S2-S5 are repeated in sequence until all the quenching tubes 10 to be cut on the fixing assembly 121 are cut, thereby realizing the automatic feeding and cutting of the quenching tubes 10.

[0052] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. An automatic feeding and cutting device for quenching tubes, characterized by: It comprises a control system, a feeding device (1), a cutting device (2) and a cutting detection mechanism (3), wherein the feeding device (1), the cutting device (2) and the cutting detection mechanism (3) are all respectively connected to the control system; The feeding device (1) comprises a first frame (11), a feeding mechanism (12) and a first driving assembly (13) are provided on the first frame (11), the first driving assembly (13) is used to drive the feeding mechanism (12) to move forward and backward along the first frame (11), and the feeding mechanism (12) comprises a fixing assembly (121) for fixing the quenching tube (10) and a second driving assembly (122) for driving the fixing assembly (121) to perform rotational motion; The cutting device (2) is arranged at the discharge end of the feeding device (1), and the cutting device includes a second frame (21). The second frame (21) is provided with a cutting mechanism (23) for cutting the quenching tube (10), and the cutting mechanism (23) includes a grinding wheel (231); The cutting detection mechanism (3) includes a driven detection pressure wheel (32), a detection block (33) and a proximity switch (34); the driven detection pressure wheel (32) is rotatably arranged on a side of the grinding wheel (231) away from the feeding device (1); the detection block (33) is fixedly connected to one end of the driven detection pressure wheel (32); the proximity switch (34) is arranged opposite to the outer peripheral side surface of the detection block (33); the driven detection pressure wheel (32) can contact the surface of the quenching tube (10) and the quenching tube (10) can drive the driven detection pressure wheel (32) and the detection block (33) to rotate; the minimum distance between each position of the outer peripheral side surface of the detection block (33) and the proximity switch (34) is at least partially different.

2. The automatic feeding and cutting equipment for quenching tubes according to claim 1, characterized in that: The cut-off detection mechanism (3) comprises a bracket (31), and both ends of the driven detection pressure wheel (32) are rotatably connected to the bracket (31) via rotating shafts (35), one of the rotating shafts (35) extends to the outside of the bracket (31) and is fixedly connected to the detection block (33), and the proximity switch (34) is fixed on the bracket (31).

3. The automatic feeding and cutting equipment for quenching tubes according to claim 2, characterized in that: The detection block (33) comprises an annular portion (332), a plurality of protrusions (333) are evenly arranged on the circumferential side surface of the annular portion (332), and the annular portion (332) is sleeved on the rotating shaft (35).

4. The automatic feeding and cutting equipment for quenching tubes according to claim 2, characterized in that: A protective cover (36) is provided on the side of the bracket (31) close to the detection block (33), and the detection block (33) and the proximity switch (34) are both provided in the protective cover (36).

5. The automatic feeding and cutting equipment for quenching tubes according to claim 2, characterized in that: The cut-off detection mechanism (3) further comprises a third drive assembly (37), wherein the third drive assembly (37) is connected to the bracket (31), and the third drive assembly (37) is used to drive the bracket (31) away from or close to the quenching tube (10).

6. The automatic feeding and cutting equipment for quenching tubes according to claim 1, characterized in that: The cutting device (2) further comprises a bearing mechanism (22) arranged on the second frame (21) for supporting the quenching tube (10), wherein the bearing mechanisms (22) are two and are respectively located on both sides of the grinding wheel (231); the bearing mechanism (22) comprises a supporting base (221) and two supporting rollers (222) rotatably arranged on the supporting base (221).

7. The automatic feeding and cutting equipment for quenching tubes according to claim 6, characterized in that: The cutting device (2) further comprises a supporting plate (24) for placing the quenching tube (10), the two ends of the supporting plate (24) being respectively arranged on the two supporting mechanisms (22), and the two supporting rollers (222) in the supporting mechanisms (22) passing through the supporting plate (24) and contacting the quenching tube (10).

8. The automatic feeding and cutting equipment for quenching tubes according to claim 1, characterized in that: The feeding mechanism (12) further comprises a support seat (123), a slider (124) being slidably arranged in the support seat (123), the fixing assembly (121) and the second driving assembly (122) being both arranged on the slider (124), and a fourth driving assembly (125) for driving the slider (124) to move up and down being arranged on the support seat (123).

9. The automatic feeding and cutting equipment for quenching tubes according to claim 8, characterized in that: A guide rail (14) is provided on at least one side of the first frame (11), the guide rail (14) is parallel to the feeding direction of the quenching tube (10), and a guide block (15) is provided on the support seat (123) and is slidably matched with the guide rail (14).

10. The automatic feeding and cutting equipment for quenching tubes according to claim 1, characterized in that: The cutting mechanism (23) further comprises a fifth driving assembly (232) for driving the grinding wheel (231) to rotate, and a sixth driving assembly (233) for driving the grinding wheel (231) to move up and down.

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