A threading device for U-bolts

Abstract

The present invention relates to the field of U-bolt processing, and in particular to a threading device for U-bolts, comprising a processing mechanism, which includes a machine tool, wherein a fixing component and two turning components are provided on the top of the machine tool, a concave flow guide frame is also provided on the top of the machine tool, a collecting component is provided at the bottom of the machine tool, and a feeding mechanism, which includes a driving component and a sliding component provided on the machine tool, wherein the driving component is provided at one end of the machine tool, the driving component is used to drive the sliding component to move, a clamping component for fixing a cylinder is provided on the sliding component, and a releasing component is provided on the machine tool and the sliding component. The feeding mechanism can realize automatic loading of unturned cylinders and automatic unloading of turned cylinders, thereby reducing manual intervention, greatly saving time, improving the turning efficiency of U-bolt production, and reducing the workload of staff.

Description

Technical Field

[0001] The invention relates to the field of U-bolt processing, in particular to a threading device for U-bolts. Background Art

[0002] A U-bolt threading device is a mechanical device specifically designed for creating threads on U-bolts. Named for its "U"-like shape, U-bolts are primarily used to secure equipment and pipes, ensuring a tight connection and easy disassembly. The threading device creates the desired thread shape on a cylindrical surface through cutting and other methods, then bends the cylinder into a U-shape to create the U-bolt.

[0003] In the prior art, when turning a U-bolt, a worker needs to manually place the cylinder into a fixing device, and then use a turning device to turn the surface of the cylinder. After turning, the cylinder needs to be removed and replaced, which is time-consuming and labor-intensive.

[0004] Therefore, a threading device for U-bolts is proposed. Summary of the Invention

[0005] In view of the problem in the above or prior art that when turning the U-bolt, the staff needs to manually place the cylinder into the fixing device, then use the turning device to turn the surface of the cylinder, and then remove and replace the cylinder after turning, which is time-consuming and labor-intensive, the present invention is proposed.

[0006] Therefore, an object of the present invention is to provide a threading device for U-bolts.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: comprising a processing mechanism, which includes a machine tool, a fixing component and two turning components are arranged on the top of the machine tool, a concave flow guide frame is also arranged on the top of the machine tool, and a collecting component is arranged on the bottom of the machine tool; a loading mechanism, which includes a driving component and a sliding component arranged on the machine tool, the driving component is arranged at one end of the machine tool, the driving component is used to drive the sliding component to move, a clamping component for fixing the cylinder is arranged on the sliding component, and a release component is arranged on the machine tool and the sliding component; the clamping component includes two clamping jaws arranged on the top of the machine tool, and the clamping surfaces of the two clamping jaws are semi-arc-shaped.

[0008] As a preferred solution of the threading device for U-bolts of the present invention, the driving assembly includes a driving member arranged on the top of one end of the machine tool, the extended end of the driving member is connected to the mounting plate, the mounting plate is connected to a first long rod and a spring plate, the end of the spring plate away from the mounting plate is spherical, a push block is slidably provided on the concave guide frame, and the two ends of the push block away from each other are provided with guide slopes.

[0009] As a preferred solution of the threading device for U-bolts of the present invention, the elastic force of the spring piece is greater than the gravity of the cylinder.

[0010] As a preferred solution of the threading device for U-bolts of the present invention, the sliding assembly includes a side plate fixedly connected to the machine tool, and a first telescopic rod and a first spring are fixedly connected to the side of the side plate close to the driving member, the first spring is sleeved on the surface of the first telescopic rod, one end of the first telescopic rod and the first spring are both connected to the side plate, and the ends of the first telescopic rod and the first spring away from the side plate are both connected to the support plate.

[0011] As a preferred solution of the threading device for U-bolts of the present invention, the clamping assembly includes a slide groove opened on the support plate, two sliders are arranged inside the slide groove, and the two sliders are connected by elastic bars. One end of the two sliders passes through the slide groove and is respectively connected to the two clamping jaws.

[0012] As a preferred solution of the threading device for U-bolts of the present invention, the clamping assembly further comprises a horizontal plate fixedly connected to the support plate, a second telescopic rod and a second spring are connected to the top of the horizontal plate, the second spring is sleeved on the surface of the second telescopic rod, and the ends of the second telescopic rod and the second spring away from the horizontal plate are both fixedly connected to the cover cap.

[0013] As a preferred solution of the threading device for U-bolts of the present invention, the clamping assembly further includes two first inclined surfaces and two first planes provided on the inner wall of the cap, each of the first inclined surfaces is connected to a first plane, and the two first inclined surfaces and the two first planes are symmetrical about the cap.

[0014] As a preferred solution of the threading device for U-bolts of the present invention, the clamping assembly further comprises a second inclined surface and a second plane provided on the clamping jaw, and the second inclined surface matches the first inclined surface.

[0015] As a preferred solution of the threading device for U-bolts of the present invention, the release assembly includes two L-shaped plates installed on the top of the machine tool, the two L-shaped plates are symmetrical, and both of the L-shaped plates are provided with a third inclined surface, and the top of the cap is provided with two fourth inclined surfaces, and the two first inclined surfaces are symmetrical about the cap.

[0016] As a preferred solution of the threading device for U-bolts of the present invention, the first spring force is greater than the second spring force.

[0017] The beneficial effects of the threading device for U-bolts of the present invention are as follows: the bottommost cylinder under the concave guide frame is first pushed by the driving assembly, and the cylinder is moved toward the fixed assembly; when the cylinder moves to a certain position, the driving assembly contacts the sliding assembly and drives the sliding assembly to move, and at the same time the sliding assembly drives the clamping assembly to operate, and the clamping assembly clamps the cylinder through two clamping claws; as the driving assembly continues to drive the sliding assembly to move, the driving assembly drives the cylinder to penetrate into the interior of the fixed assembly through the two clamping claws of the clamping assembly, and the fixed assembly can fix the cylinder that needs to be threaded, and as the driving assembly continues to drive the clamping assembly to move through the sliding assembly, the clamping assembly contacts the releasing assembly, thereby making the two The jaws are opened, so that when the fixed assembly rotates the driven cylinder, the cylinder will not contact the two jaws, thereby reducing the wear of the jaws and the cylinder. When the turning assembly completes the thread turning of the cylinder, the driving assembly is reset. When the driving assembly is reset, the sliding assembly is also reset, and the sliding assembly drives the clamping assembly to move. The clamping assembly drives the two first clamps to clamp the cylinder, and as the sliding assembly is reset, the clamping assembly drives the cylinder to detach from the fixed assembly through the two jaws. When the cylinder is completely detached from the fixed assembly, the cylinder is at the top of the collection assembly. As the driving assembly continues to reset, the clamping assembly continues to contact the release assembly, and then the two jaws are opened. The cylinder clamped by the two jaws automatically falls into the collection assembly, realizing automatic unloading of the cylinder after turning, reducing manual intervention, greatly saving time, improving the efficiency of U-bolt production turning, and reducing the workload of staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 Schematic diagram of the overall structure of a threading device for U-bolts;

[0020] Figure 2 A schematic diagram of the overall structure of a threading device for U-bolts from another perspective;

[0021] Figure 3 for Figure 2 A magnified view of the structure at point B in FIG;

[0022] Figure 4 for Figure 1 A magnified view of the structure at point A;

[0023] Figure 5 A schematic diagram of the cross-sectional structure of a clamping assembly for a threading device for U-bolts;

[0024] Figure 6 A schematic diagram of a portion of the structure of a clamping assembly in a threading device for U-bolts;

[0025] Figure 7 This is a schematic diagram of the structure of the two clamping jaws in the threading device for U-bolts when they are separated.

[0026] In the figure: 1, processing mechanism; 11, machine tool; 12, fixing assembly; 13, turning assembly; 14, concave guide frame; 15, collection assembly;

[0027] 2. Feeding mechanism; 21. Driving assembly; 211. Driving member; 212. Mounting plate; 213. First long rod; 214. Spring piece; 215. Push block; 216. Guide slope; 22. Sliding assembly; 221. Side plate; 222. First telescopic rod; 223. First spring; 224. Support plate; 23. Clamping assembly; 231. Slide groove; 232. Sliding block; 233. Spring bar; 234. Cross plate; 235. Second telescopic rod; 236. Second spring; 237. Cover cap; 238. First slope; 239. First plane; 2310. Second slope; 2311. Second plane; 2312. Clamping jaw; 24. Release assembly; 241. L-shaped plate; 242. Third slope; 243. Fourth slope. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0029] Example 1, reference Figures 1 to 7, which is the first embodiment of the present invention, provides a threading device for U-bolts, which includes a processing mechanism 1, which includes a machine tool 11, a fixing component 12 and two turning components 13 are arranged on the top of the machine tool 11, and the two turning components 13 are symmetrical about the fixing component 12. A concave flow guide frame 14 is also arranged on the top of the machine tool 11, a collecting component 15 is arranged at the bottom of the machine tool 11, and a feeding mechanism 2 is arranged on the top of the machine tool 11. The feeding mechanism 2 includes a driving component 21 and a sliding component 22 arranged on the machine tool 11. The driving component 21 is provided on the top of the machine tool 11. The moving assembly 21 is provided at one end of the machine tool 11. The driving assembly 21 is used to drive the sliding assembly 22 to move. The sliding assembly 22 is provided with a clamping assembly 23 for fixing the cylinder. The machine tool 11 and the sliding assembly 22 are provided with a release assembly 24. The clamping assembly 23 includes two clamping jaws 2312 provided on the top of the machine tool 11. The clamping surfaces of the two clamping jaws 2312 are semi-arc-shaped, and the two clamping jaws 2312 match the cylinder. The semi-arc-shaped clamping surfaces of the two clamping jaws 2312 facilitate the two clamping jaws 2312 to clamp the cylinder.

[0030] Among them, the fixing assembly 12 is used to fix the cylinder and can drive the cylinder to rotate. The turning assembly 13 is used to turn the cylinder, so that the cylinder cooperates with the tool of the turning assembly 13 when rotating, and a thread is opened on the surface of the cylinder. The fixing assembly 12 and the turning assembly 13 are very mature technologies in the existing technology and will not be described in detail here;

[0031] The concave guide frame 14 is used to place the cylinder, and the cylinder can be transported to the concave guide frame 14 by the conveying component. The collection component 15 is a collection box in the scheme, and can also be other equipment, such as a conveyor belt, to automatically transport the processed cylinder to a suitable position.

[0032] The driving assembly 21 first pushes the bottom cylinder under the concave guide frame 14 and makes the cylinder move toward the fixing assembly 12. When the cylinder moves to a certain position, the driving assembly 21 contacts the sliding assembly 22 and drives the sliding assembly 22 to move. At the same time, the sliding assembly 22 drives the clamping assembly 23 to operate, and the clamping assembly 23 clamps the cylinder through the two clamping claws 2312. As the driving assembly 21 continues to drive the sliding assembly 22 to move, the driving assembly 21 drives the cylinder to penetrate into the interior of the fixing assembly 12 through the two clamping claws 2312 of the clamping assembly 23, and the fixing assembly 12 can fix the cylinder that needs to be threaded. As the driving assembly 21 continues to drive the clamping assembly 23 to move through the sliding assembly 22, the clamping assembly 23 contacts the releasing assembly 24, thereby causing the two clamping claws 2312 to open, so that when the fixing When the fixed component 12 rotates the driven cylinder, the cylinder will not contact the two clamping jaws 2312, thereby reducing the wear of the clamping jaws 2312 and the cylinder. When the turning component 13 drives to complete the thread turning of the cylinder, the driving component 21 is reset. When the driving component 21 is reset, the sliding component 22 is also reset, and the sliding component 22 drives the clamping component 23 to move. The clamping component 23 drives the two first clamps the cylinder through the two clamping jaws 2312, and as the sliding component 22 is reset, the clamping component 23 drives the cylinder to detach from the inside of the fixed component 12 through the two clamping jaws 2312. When the cylinder is completely detached from the inside of the fixed component 12, the cylinder is at the top of the collecting component 15. As the driving component 21 continues to reset, the clamping component 23 continues to contact the releasing component 24, thereby opening the two clamping jaws 2312. The cylinder clamped by the two clamping jaws 2312 automatically falls into the collecting assembly 15, realizing automatic unloading of the cylinder after turning, reducing manual intervention, greatly saving time, improving the U-bolt turning efficiency, and reducing the workload of the staff.

[0033] Furthermore, the driving assembly 21 includes a driving member 211 fixedly mounted on the top of one end of the machine tool 11, the extended end of the driving member 211 is connected to a mounting plate 212, and the mounting plate 212 is connected to a first long rod 213 and a spring piece 214, the end of the spring piece 214 away from the mounting plate 212 is spherical, so that when the end of the spring piece 214 squeezes the guide slopes 216 at both ends of the push block 215, the spring piece 214 can be deformed in a direction away from the push block 215, thereby allowing the spring piece 214 to pass through the top of the push block 215, and a push block 215 is slidably provided on the concave guide frame 14, and guide slopes 216 are provided at both ends of the push block 215 away from each other;

[0034] The driving member 211 may be a cylinder or an electric telescopic rod, or any other mechanism that can drive the mounting plate 212 to move linearly.

[0035] Furthermore, the elastic force of the spring piece 214 is greater than the gravity of the cylinder, so that in the initial state, when the driving member 211 drives the mounting plate 212 to move and the mounting plate 212 drives the spring piece 214 to move, the spring piece 214 can drive the cylinder to move through the push block 215.

[0036] In this embodiment, the first long rod 213 may not be provided;

[0037] When in use, the cylinder that needs to be threaded is transported to the concave guide frame 14. After completion, the driving member 211 is turned on, and the driving member 211 drives the mounting plate 212 to move. The mounting plate 212 drives the spring piece 214 to move, and the spring piece 214 squeezes the push block 215, so that the push block 215 moves, and the push block 215 drives the cylinder to pass through the concave guide frame 14 and move in the direction of the fixed component 12. When the push block 215 is in contact with the inner wall of the concave guide frame 14 away from the driving member 211, as the mounting plate 212 continues to drive the spring piece 214 to move, since the push block 215 cannot move at this time, the push block 215 is stuck at the bottom of the concave guide frame 14, preventing the subsequently transported cylinder from being in contact with the bottom of the concave guide frame 14, and at the same time causing the spring piece 214 to deform upward. When the spring piece 214 passes through the push block 215, under the action of the elastic force of the spring piece 214 When the spring piece 214 is pressed against the top of the cylinder, the spring piece 214 continues to drive the cylinder to move under the friction between the cylinder and the end of the spring piece 214, so that the cylinder moves to the appropriate position, and then the driving member 211 contracts, so that the spring piece 214 squeezes the push block 215, so that the push block 215 is reset. When the push block 215 is in contact with the side of the concave guide frame 14 close to the driving member 211, the driving member 211 continues to drive the spring piece 214 to move through the mounting plate 212, so that the spring piece 214 is deformed upward. When the spring piece 214 passes through the push block 215, the spring piece 214 returns to its initial position. When the driving member 211 contracts, the fixing assembly 12 fixes the cylinder that needs to be threaded and drives it to rotate, and cooperates with the two turning assemblies 13 to achieve simultaneous threading of both ends of the cylinder.

[0038] After completion, the fixation of the cylinder that has been turned is released. When the driving member 211 is continued to be opened, the driving member 211 drives the cylinder to be processed to move through the mounting plate 212 and the spring 214. The end of the cylinder to be processed contacts the end of the cylinder that has been turned, and the cylinder that has been turned is squeezed out to achieve automatic unloading.

[0039] In summary, this embodiment provides a mechanism for automatically loading and unloading cylinders, which reduces manual intervention, reduces the workload of workers, and improves processing efficiency.

[0040] Example 2, reference Figures 1 to 7 , which is a second embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a threading device for U-bolts, which includes a sliding assembly 22 including a side plate 221 fixedly connected to the machine tool 11, a first telescopic rod 222 and a first spring 223 fixedly connected to a side of the side plate 221 close to the driving member 211, the first spring 223 is sleeved on the surface of the first telescopic rod 222, one end of the first telescopic rod 222 and the first spring 223 are both connected to the side plate 221, and the ends of the first telescopic rod 222 and the first spring 223 away from the side plate 221 are both connected to the support plate 224;

[0041] Among them, the setting of the first spring 223 and the first telescopic rod 222 ensures that the support plate 224 can only move horizontally and linearly, and thus the clamping assembly 23 on the support plate 224 can only move horizontally and linearly, so that the clamping assembly 23 can drive the cylinder to be directly inserted into the center of the fixed assembly 12 through the two clamping jaws 2312, which is convenient for the fixed assembly 12 to position and clamp the center of the cylinder, thereby improving the turning accuracy of the turning assembly 13 on the cylinder.

[0042] Furthermore, the clamping assembly 23 includes a slide groove 231 formed on the support plate 224. Two sliders 232 are provided inside the slide groove 231. The two sliders 232 are connected by an elastic bar 233. The elastic bar 233 has a relatively small elastic force. It is only necessary to ensure that when the two first flat surfaces 239 of the cap 237 and the two second flat surfaces 2311 of the two clamping jaws 2312 are misaligned, the two clamping jaws 2312 can move away from each other to form a certain gap so that the two clamping jaws 2312 do not contact the cylinder. One end of each slider 232 passes through the slide groove 231 and is respectively connected to the two clamping jaws 2312.

[0043] Among them, the sliding groove 231 matches the moving trajectory of the two sliders 232, so that when the two clamps 2312 are opened, they can drive the two sliders 232 to slide inside the sliding groove 231, and the positions of the two clamps 2312 correspond, which facilitates the two clamps 2312 to clamp the cylinder. The sliding groove 231 and the two sliders 232 are both trapezoidal, ensuring a stable connection between the slider 232 and the support plate 224, and thus ensuring a stable connection between the clamps 2312 and the support plate 224.

[0044] Furthermore, the clamping assembly 23 also includes a horizontal plate 234 fixedly connected to the support plate 224. A second telescopic rod 235 and a second spring 236 are connected to the top of the horizontal plate 234. The second spring 236 is sleeved on the surface of the second telescopic rod 235. The ends of the second telescopic rod 235 and the second spring 236 away from the horizontal plate 234 are fixedly connected to the cap 237.

[0045] The arrangement of the second telescopic rod 235 and the second spring 236 ensures that the cover cap 237 can only move up and down in the vertical direction.

[0046] Furthermore, the clamping assembly 23 also includes two first inclined surfaces 238 and two first planes 239 provided on the inner wall of the cap 237, each first inclined surface 238 is connected to a first plane 239, and the two first inclined surfaces 238 and the two first planes 239 are symmetrical about the cap 237. The clamping assembly 23 also includes a second inclined surface 2310 and a second plane 2311 provided on the clamping jaw 2312, and the second inclined surface 2310 matches the first inclined surface 238.

[0047] Furthermore, the release assembly 24 includes two L-shaped plates 241 mounted on the top of the machine tool 11. The two L-shaped plates 241 are symmetrical, and both L-shaped plates 241 are provided with a third inclined surface 242. The top of the cap 237 is provided with two fourth inclined surfaces 243, and the two first inclined surfaces 238 are symmetrical about the cap 237.

[0048] Among them, the sliding component 22 is located between two L-shaped plates 241, one of the L-shaped plates 241 is close to the fixed component 12, and the third inclined surface 242 thereon is used to open the two clamping jaws 2312 to release the clamping of the cylinder, so that the fixed component 12 can clamp the cylinder, thereby turning the cylinder, and the other L-shaped plate 241 is close to the concave guide frame 14, and the third inclined surface 242 thereon is used to open the two clamping jaws 2312 to release the clamping of the cylinder, so that the cylinder that has been turned between the two clamping jaws 2312 falls into the inside of the collection component 15 from the gap between the two clamping jaws 2312 under the action of gravity.

[0049] Furthermore, the elastic force of the first spring 223 is greater than the elastic force of the second spring 236, so that when the sliding assembly 22 is reset, the fourth inclined surface 243 on the cover cap 237 contacts the third inclined surface 242 of the L-shaped plate 241 close to the concave guide frame 14, so that the two clamping jaws 2312 open automatically, avoiding the situation where the fourth inclined surface 243 on the cover cap 237 contacts the third inclined surface 242 of the L-shaped plate 241 close to the concave guide frame 14 due to insufficient elastic force, and is affected by the elastic force of the second spring 236, causing the cover cap 237 to drive the clamping assembly 23 to stop moving, resulting in the need for manual unlocking.

[0050] The rest of the structure is the same as that of Example 1.

[0051] Different from the above embodiment, in this embodiment, the first long rod 213 needs to be provided;

[0052] When the driving member 211 pushes the push block 215 to move through the mounting plate 212 and the spring piece 214, the push block 215 drives the cylinder to move. When the push block 215 fits the inner wall of the concave guide frame 14 away from the driving member 211, the first long rod 213 contacts the support plate 224. As the mounting plate 212 continues to drive the spring piece 214 to move, the push block 215 cannot move at this time, and the push block 215 is stuck at the bottom of the concave guide frame 14, preventing the subsequent conveyed cylinder from fitting with the bottom of the concave guide frame 14. At the same time, the spring piece 214 is deformed upward. When the spring piece 214 passes through the push block 215, the push rod pushes the support plate 224 to move, and the support plate 224 drives the first extension rod 213 to contact the support plate 224. The retracted rod 222 and the first spring 223 are compressed, and at the same time, the support plate 224 drives the cap 237 to move. When the fourth inclined surface 243 on the cap 237 is misaligned with the third inclined surface 242 on the L-shaped plate 241, the cap 237 rises under the elastic force of the second spring 236, causing the two first inclined surfaces 238 on the cap 237 to respectively press the two second inclined surfaces 2310 on the two clamping jaws 2312, so that the two clamping jaws 2312 drive the two sliders 232 to slide linearly inside the slide groove 231. When the two first flat surfaces 239 on the cap 237 respectively contact the two second flat surfaces 2311 on the two clamping jaws 2312, the two clamping jaws 2312 clamp the cylinder.

[0053] As the mounting plate 212 continues to drive the first long rod 213 to move, the first long rod 213 drives the two clamping jaws 2312 to move through the support plate 224 and the clamping assembly 23, and the two clamping jaws 2312 drive the cylinder to move. At this time, the cylinder squeezes the semi-arc surface of the two clamping jaws 2312. Under the action of the two first planes 239 and the two second planes 2311, the two clamping jaws 2312 cannot open, so the two clamping jaws 2312 can stably clamp the cylinder and drive the cylinder to move (the difference from the first embodiment is that in this embodiment, the two clamping jaws 231 are used to clamp the cylinder). 2 drives the cylinder to move, and at this time the spring piece 214 does not contact the cylinder. The distance between the end of the spring piece 214 and the cylinder is the length of the push block 215. After the cylinder is inserted into the interior of the fixing assembly 12, the support plate 224 continues to drive the clamping assembly 23 to move, and the two clamping claws 2312 open. At this time, the spring piece 214 also moves toward the fixing assembly 12. This distance is used to prevent the spring piece 214 from contacting the end of the cylinder, thereby avoiding contact between the cylinder and the spring piece 214 when the fixing assembly 12 drives the cylinder to rotate, thereby avoiding the problem of increased wear);

[0054] When the support plate 224 drives the two clamping jaws 2312 to drive the cylinder to penetrate into the appropriate position inside the fixing assembly 12 through the clamping assembly 23, at this time, the fourth inclined surface 243 on the top of the cap 237 contacts the fourth inclined surface 243 and the third inclined surface 242 of the L-shaped plate 241 close to the concave flow guide frame 14, causing the cap 237 to drop, and the cap 237 squeezes the second spring 236 and the second telescopic rod 235, so that the second spring 236 and the second telescopic rod 235 are compressed. When the two first flat surfaces 239 on the cap 237 are misaligned with the two second flat surfaces 2311 of the two clamping jaws 2312, under the action of the elastic bar 233, the two clamping jaws 2312 open, so that the two clamping jaws 2312 do not contact the cylinder, thereby preventing the cylinder from contacting the clamping jaws 2312 during rotation, causing wear problems;

[0055] When the turning of the threads at both ends of the cylinder is completed, the driving member 211 is reset, and the driving member 211 drives the first long rod 213 to reset through the mounting plate 212, so that the first long rod 213 no longer presses the support plate 224. Under the action of the first spring 223, the support plate 224 is reset, and the support plate 224 drives the clamping assembly 23 to reset. When the fourth inclined surface 243 on the top of the cap 237 is misaligned with the fourth inclined surface 243 and the third inclined surface 242 of the L-shaped plate 241 close to the concave guide frame 14, the cap 237 is reset under the elastic force of the second spring 236, and the cap 237 is reset through the two first The inclined surface 238 squeezes the two second inclined surfaces 2310 of the two clamps 2312, so that the two clamps 2312 clamp the cylinder. After completion, as the support plate 224 continues to drive the cylinder to move in the direction of the guide frame through the clamping assembly 23, when the fourth inclined surface 243 on the cap 237 contacts the third inclined surface 242 on the L-shaped plate 241 close to the concave guide frame 14, the two clamps 2312 open, releasing the clamping of the cylinder, and then the cylinder that has been turned between the two clamps 2312 falls into the inside of the collection assembly 15 from the gap between the two clamps 2312 under the action of gravity.

[0056] In summary, in this embodiment, a mechanism for automatically clamping a cylinder is provided, which can realize automatic clamping of the cylinder, facilitate the fixation of the fixing component 12 to the center of the cylinder, improve the processing accuracy of the cylindrical thread turning, and thus improve the turning accuracy of the U-bolt thread, while reducing the work intensity of the staff and improving the production efficiency of the U-bolt.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solutions 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 preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A threading device for U-bolts, characterized by: The invention comprises a processing mechanism (1), which comprises a machine tool (11), wherein a fixing assembly (12) and two turning assemblies (13) are provided on the top of the machine tool (11), a concave flow guide frame (14) is further provided on the top of the machine tool (11), and a collecting assembly (15) is provided on the bottom of the machine tool (11); a feeding mechanism (2), which comprises a driving assembly (21) and a sliding assembly (22) provided on the machine tool (11), wherein the driving assembly (21) is provided at one end of the machine tool (11), the driving assembly (21) is used to drive the sliding assembly (22) to move, a clamping assembly (23) for fixing a cylinder is provided on the sliding assembly (22), and a releasing assembly (24) is provided on the machine tool (11) and the sliding assembly (22); the clamping assembly (23) comprises two clamping jaws (2312) provided on the top of the machine tool (11), and the clamping surfaces of the two clamping jaws (2312) are semi-arc-shaped; The sliding assembly (22) includes a side plate (221) fixedly connected to the machine tool (11), a first telescopic rod (222) and a first spring (223) fixedly connected to a side of the side plate (221) close to the driving member (211), the first spring (223) being sleeved on a surface of the first telescopic rod (222), one end of the first telescopic rod (222) and the first spring (223) being connected to the side plate (221), and one end of the first telescopic rod (222) and the first spring (223) being away from the side plate (221) being connected to a support plate (224); The clamping assembly (23) further includes two first inclined surfaces (238) and two first planes (239) provided on the inner wall of the cap (237), each of the first inclined surfaces (238) being connected to a first plane (239), and the two first inclined surfaces (238) and the two first planes (239) are symmetrical with respect to the cap (237); The release assembly (24) includes two L-shaped plates (241) mounted on the top of the machine tool (11), the two L-shaped plates (241) are symmetrical, and the two L-shaped plates (241) are both provided with a third inclined surface (242), the top of the cap (237) is provided with two fourth inclined surfaces (243), and the two first inclined surfaces (238) are symmetrical about the cap (237); The elastic force of the first spring (223) is greater than the elastic force of the second spring (236).

2. The threading device for U-bolts according to claim 1, characterized in that: The driving assembly (21) comprises a driving member (211) disposed on the top of one end of the machine tool (11); an extended end of the driving member (211) is connected to a mounting plate (212); a first long rod (213) and a spring piece (214) are connected to the mounting plate (212); an end of the spring piece (214) away from the mounting plate (212) is spherical; a push block (215) is slidably disposed on the concave flow guide frame (14); and two ends of the push block (215) away from each other are both provided with flow guide inclined surfaces (216).

3. The threading device for U-bolts according to claim 2, wherein: The elastic force of the spring (214) is greater than the gravity of the cylinder.

4. The threading device for U-bolts according to claim 3, characterized in that: The clamping assembly (23) includes a slide groove (231) provided on the support plate (224), two sliders (232) are provided inside the slide groove (231), the two sliders (232) are connected by a spring bar (233), and one end of the two sliders (232) passes through the slide groove (231) and is respectively connected to the two clamping claws (2312).

5. The threading device for U-bolts according to claim 4, characterized in that: The clamping assembly (23) further includes a transverse plate (234) fixedly connected to the support plate (224), a second telescopic rod (235) and a second spring (236) being connected to the top of the transverse plate (234), the second spring (236) being sleeved on the surface of the second telescopic rod (235), and the ends of the second telescopic rod (235) and the second spring (236) away from the transverse plate (234) are both fixedly connected to the cover cap (237).

6. The threading device for U-bolts according to claim 5, characterized in that: The clamping assembly (23) further includes a second inclined surface (2310) and a second plane (2311) provided on the clamping jaw (2312), wherein the second inclined surface (2310) matches the first inclined surface (238).

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