A kind of anti-loosening nut forming processing equipment

Abstract

The present application relates to the field of nut processing equipment, and in particular to a kind of anti-loosening nut forming processing equipment, including a frame, a feeding device arranged on the frame, a conveying device for transporting the hot steel section conveyed by the feeding device, and a forming device, the forming device is used to sequentially upset the heated steel section on the conveying device, punch holes in the upset steel section and form it into a traditional flange nut, and notch the formed flange nut, the forming device punches grooves multiple times in a sequentially deepening manner to form a sealing groove, the aperture of the center hole of the flange nut after the last notch of the forming device is smaller than the specified aperture, and the forming device synchronously corrects the punching of the center hole of the flange nut during the last notch. The present application can forge a flange nut with a sealing groove for the heated steel section at one time, and at the same time as notching, correct the center hole of the flange nut that is deformed due to the stamping of the sealing groove, which is convenient for subsequent tapping, improves production efficiency, and ensures quality.

Description

Technical Field

[0001] The present application relates to the field of nut processing equipment, and in particular to a kind of anti-loosening nut forming processing equipment. Background Art

[0002] The anti-loosening nut is a common anti-loosening fastener, which usually prevents loosening by increasing friction.

[0003] In the common nut production process, the raw materials are first evenly cut into suitable steel segments, and then the cut steel segments are transported to the feed end of the heating furnace, arranged neatly, and sent into the heating furnace to be heated to the appropriate temperature. The heated steel segments are then transported to the stamping machine for upsetting, punching and stamping before the subsequent tapping process can be carried out.

[0004] However, due to the special structure of some nuts, the above process is difficult to complete or even impossible to complete. Figure 1 , Figure 2 and Figure 3 The anti-loosening nut is a flange nut 7, and an annular sealing groove 71 is coaxially opened on the flange surface of the nut. The annular sealing groove 71 enables the flange nut 7 to have better sealing and anti-loosening capabilities after being tightened.

[0005] Due to the existence of the sealing groove 71 on the flange nut 7, directly stamping the sealing groove 71 as a whole will result in excess material that interferes with the integrity of the flange nut, and the flange nut 7 will have a skirt or even overall deformation. After the flange nut 7 is forged, it is necessary to send the flange nut 7 to a machining center to machine the sealing groove 71 before tapping can be performed.

[0006] With respect to the above-mentioned related technologies, it is believed that the following defects exist: since the machining center needs to be clamped before processing, the overall processing time is long, which reduces production efficiency. Summary of the invention

[0007] In order to solve the problem of low processing efficiency of the sealing groove of the flange anti-loosening nut processed by the traditional machining center, the present application provides an anti-loosening nut forming processing equipment.

[0008] The present application provides a locking nut forming and processing equipment adopting the following technical solution:

[0009] A kind of anti-loosening nut forming processing equipment includes a frame, a loading device arranged on the frame, a conveying device for transporting heated steel sections conveyed by the loading device, and a forming device for cooperating with the conveying device to forge and form the heated steel sections, the forming device is used to sequentially upset the heated steel sections on the conveying device, punch holes in the upset steel sections and form them into traditional flange nuts, and notch the formed flange nuts, and the forming device performs multiple notches in a sequentially deepening manner during notching to form a sealing groove on the flange nut, and the aperture of the center hole of the flange nut is adjusted to be smaller than the specified aperture after the last sealing groove punching by the forming device, and the forming device is also used to synchronously perform punching correction on the center hole of the flange nut when the sealing groove is punched for the last time.

[0010] Through the above technical scheme, the above mechanism can forge the heated steel section once to form a flange nut, and at the same time punch out a sealing groove on the flange surface of the flange nut, and at the same time adjust the aperture of the center hole of the flange nut after the last sealing groove punching by the forming device to be smaller than the standard aperture, and then during the last punching, the forming device synchronously punches the center of the flange nut, so that the center hole of the flange nut deformed due to the sealing groove punching is corrected, which is convenient for subsequent tapping operations, not only improving production efficiency, but also ensuring product quality and stability.

[0011] Optionally, the feeding device includes a feed pipe and a discharge pipe, both of which are inclined, the upper end of the feed pipe is connected to the discharge end of the heating furnace, the lower end of the discharge pipe extends to the feed end of the conveying device, the upper end of the discharge pipe is connected to the lower end of the feed pipe, and the lower end of the feed pipe is provided with a blocking mechanism for intermittently blocking the steel segment according to the stamping speed of the forming device.

[0012] Optionally, the conveying device includes a switching wheel rotatably mounted on the frame and a support plate provided on the frame, the switching wheel is circumferentially provided with a plurality of punching holes for punching traditional flange nuts, the support plate is used to receive the steel sections falling from the discharge pipe, and one end of the support plate is always aligned with one of the punching holes of the switching wheel.

[0013] Optionally, the forming device includes a first push plate slidably mounted on the frame, the first push plate being provided with an upsetting head for pushing the steel segment from the support plate into the stamping hole for upsetting, a punching forming head for punching the upset steel segment in cooperation with the stamping hole, and a plurality of notching heads for punching sealing grooves on the flange surface of the formed flange nut, the punching depths of the notching heads being deepened successively, and the notching head with the deepest punching depth is provided with a punching head for performing secondary punching processing on the center hole of the flange nut after deformation due to the notching.

[0014] Optionally, the punching head is coaxially slidably mounted on the notching head, and the frame is provided with a first pushing cylinder and a second pushing cylinder, the first pushing cylinder is used to push the first pushing plate, and the second pushing cylinder is used to push the punching head, the first pushing plate is provided with a first button for starting the second pushing cylinder, and the frame is provided with a second button for resetting the first pushing cylinder and the second pushing cylinder, when the notching head completes punching, the flange nut pushes the punching head to slide until the first button is pressed, and the second pushing cylinder starts to push the punching head to punch, and when the punching is completed, the piston rod of the second pushing cylinder presses the second button, and the first pushing cylinder and the second pushing cylinder are reset, and a reset spring for resetting the punching head is provided in the notching head.

[0015] Optionally, the support plate is provided with an arc-shaped groove for placing steel sections, and limit plates are vertically slidably installed on the support plates on both sides of the arc-shaped groove. One end of the upsetting head is slidably installed in the arc-shaped groove, and the limit plate is provided with a guide surface for cooperating with the first push plate to push the limit plate to slide. The frame is provided with a support spring for supporting the limit plate.

[0016] Optionally, one end of the discharge pipe extends to the top wall of the limit plate, and the discharge pipe is slidably installed on the frame. The first push plate and the discharge pipe are transmission connected by means of a gear rack and a bevel gear. When the first push plate is pushed out, the discharge pipe is driven by the first push plate to move out from the stamping area of ​​the first push plate.

[0017] Optionally, the blocking mechanism includes two baffles slidably mounted on the lower end of the feed pipe, a switching gear is rotatably mounted on the frame, both baffles are provided with switching racks meshing with the switching gears, and the discharge pipe is provided with a driving rack meshing with the switching gears. When the discharge pipe slides out of the stamping area of ​​the first push plate, the baffle located above slides to open the feed pipe, and the baffle located below slides to close the feed pipe.

[0018] Optionally, the baffle is located on the bottom wall of the feed pipe.

[0019] Optionally, the punching hole passes through the switching wheel, and a second push plate is slidably installed on the frame on the side of the switching wheel facing away from the first push plate. The second push plate is provided with a forging head corresponding to the upsetting head, the punching head and the notching head. The forging head is used to cooperate with the upsetting head, the punching head and the notching head for hot forging. The second push plate is also provided with an ejector head for ejecting the flange nut in the punching hole.

[0020] Through the above technical solution, the forging pressure originally borne by the switching wheel is borne by the forging head, so that the bearing of the switching wheel is not easily deformed, the transmission system that drives the switching wheel to rotate is not easily damaged as a whole, and the accuracy of the rotation angle of the switching wheel is not easily reduced.

[0021] To summarize, the present application forms a flange nut by forging a heated steel segment once, and at the same time punches a sealing groove on the flange surface of the flange nut, and at the same time adjusts the aperture of the center hole of the flange nut after the last sealing groove punching by the forming device to be smaller than the standard aperture, and then during the last punching, the forming device simultaneously punches the center of the flange nut, so that the center hole of the flange nut that is deformed due to the sealing groove stamping is corrected, which facilitates the subsequent tapping operation, which not only improves the production efficiency, but also ensures the quality and stability of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the front three-dimensional structure of the flange nut required to be produced in this application.

[0023] Figure 2 It is a three-dimensional structural schematic diagram of the back side of the flange nut required to be produced in this application.

[0024] Figure 3 This is a cross-sectional view of the flange nut required to be produced in this application.

[0025] Figure 4 It is a three-dimensional structural schematic diagram of this application.

[0026] Figure 5 This is a three-dimensional structural schematic diagram of the present application, in which the feeding system is hidden.

[0027] Figure 6 It is a three-dimensional structural schematic diagram of the feeding system of the present application.

[0028] Figure 7 It is a three-dimensional structural schematic diagram of the feed pipe and the discharge pipe of the present application, in which the top wall of the feed pipe is removed.

[0029] Figure 8 It is a cross-sectional view of a forging head with a push rod installed in a sliding manner according to the present application.

[0030] Fig. 9 It is a cross-sectional view of the last notching head of this application.

[0031] Fig.10 It is an exploded schematic diagram of the starting wheel and the switching wheel of the present application, in which the mounting shaft of the switching wheel is cut off.

[0032] Fig.11 It is a front view of the starting wheel of the present application.

[0033] Fig.12 It is a brief circuit diagram of the control system of the present application starting with the starting wheel.

[0034] Those skilled in the art will appreciate that the elements in the drawings are shown for simplicity and clarity and are not necessarily drawn to scale. For example, the size and position of some elements in the drawings may be exaggerated relative to other elements to help improve understanding of the embodiments of the present invention.

[0035] Reference numerals: 1, frame; 11, push rod; 12, starting wheel; 121, push rod; 13, third button; 14, third pressure plate; 15, fourth button; 2, feeding device; 21, feeding pipe; 22, discharging pipe; 3, conveying device; 31, switching wheel; 311, punching hole; 32, supporting plate; 321, arc groove; 322, limiting plate; 33, guiding surface; 4, forming device; 41, first push plate; 411, upsetting head; 412, punching forming head; 413, notching head; 414 , punching head; 42, second push plate; 421, forging head; 4211, receiving hole; 422, ejector head; 43, return spring; 44, first push cylinder; 441, first button; 45, second push cylinder; 46, second button; 5, fixing rod; 51, first gear; 52, first rack; 53, second gear; 54, second rack; 6, blocking mechanism; 61, baffle; 62, switching gear; 63, switching rack; 64, driving rack; 7, flange nut; 71, sealing groove. DETAILED DESCRIPTION

[0036] The following is combined with Figure 4-Figure 12 This application is described in further detail.

[0037] The present application embodiment discloses a locking nut forming and processing device, referring to Figure 4 and Figure 5 , including a frame 1, a feeding device 2 arranged on the frame 1, a conveying device 3 for transporting the heated steel segments delivered by the feeding device 2, and a forming device 4 for cooperating with the conveying device 3 to forge and form the heated steel segments.

[0038] Reference Figure 4 and Figure 5 The conveying device 3 includes a switching wheel 31 rotatably mounted on the frame 1 and an arc-shaped support plate 32 fixedly mounted on the frame 1. A plurality of punching holes 311 are circumferentially spaced apart on the switching wheel 31. The punching holes 311 are used to cooperate with a punch to punch the traditional flange nut 7, and the hexagonal end of the punching hole 311 passes through the switching wheel 31.

[0039] Reference Figure 4 and Figure 5The forming device 4 includes a first push plate 41 and a second push plate 42 slidably mounted on the frame 1, the first push plate 41 and the second push plate 42 are respectively located on both sides of the switching wheel 31, and an upsetting head 411 for upsetting the steel segment, a punching forming head 412 for punching the upset steel segment in cooperation with the punching hole 311, and two notching heads 413 for punching the sealing groove 71 on the flange surface of the formed flange nut 7, wherein the number of the notching heads 413 is set according to the depth of the sealing groove 71, and the notching depth of the notching heads 413 is deepened successively.

[0040] Reference Figure 4 and Figure 5 Four hexagonal columnar forging heads 421 and a hexagonal columnar ejector head 422 for ejecting the flange nut 7 after stamping are fixedly installed at the position corresponding to the above-mentioned punching head on the second push plate 42. The forging head 421 is used to close one end of the punching hole 311 to cooperate with the above-mentioned punching head for hot stamping forging. The forging head 421 and the second push plate 42 bear the impact force of the punching head on the first push plate 41, so that the mounting shaft, bearings and transmission mechanism of the switching wheel 31 are not easily deformed and damaged under the impact force of the first push plate 41, which prolongs the service life of the switching wheel 31 and the accuracy during use, and can effectively avoid the above-mentioned punching head and forging head 421 from colliding and damaging with the switching wheel 31 during forging.

[0041] Reference Figure 5 and Figure 6 A receiving hole 4211 is provided in the forging head 421 cooperating with the punching forming head 412 and the punching head 414 to accommodate the excess material punched out. Two push rods 11 corresponding to the receiving holes 4211 and slidingly cooperating with each other are fixedly installed on the frame 1. When the second push plate 42 is reset, the push rods 11 slide into the receiving holes 4211 to push the excess material out of the receiving holes 4211.

[0042] Reference Figure 4 and Figure 6 The loading device 2 includes a discharge pipe 22 slidably mounted on the frame 1 and a feed pipe 21 fixedly mounted on the frame 1. The feed pipe 21 and the discharge pipe 22 are both inclined. The upper end of the feed pipe 21 is connected to the discharge end of the heating furnace, the lower end of the feed pipe 21 is connected to the upper end of the discharge pipe 22, and the lower end of the discharge pipe 22 extends to the arc-shaped support plate 32.

[0043] Reference Figure 4 and Figure 6 The first push plate 41 and the discharge pipe 22 are connected by transmission in the following manner, so that when the first push plate 41 is pushed out, the discharge pipe 22 slides out from the forging area of ​​the first push plate 41 to avoid interference between the first push plates 41:

[0044] Reference Figure 4 and Figure 6 A first rack 52 is fixedly mounted on the first push plate 41 through a fixing rod 5. The first rack 52 is slidably mounted on the frame 1. The first rack 52 is arranged along the sliding direction of the first push plate 41. A first gear 51 meshing with the first rack 52 is rotatably mounted on the frame 1.

[0045] Reference Figure 4 and Figure 6 A second gear 53 is also rotatably mounted on the frame 1, and the second gear 53 is connected to the first gear 51 through a bevel gear transmission. A second rack 54 meshing with the second gear 53 is fixedly mounted on the discharge pipe 22, and the second rack 54 is arranged along the sliding direction of the discharge pipe 22. When the first push plate 41 is pushed out, the first push plate 41 drives the first gear 51 to rotate through the first rack 52, and the first gear 51 drives the second gear 53 to rotate, and the second gear 53 drives the second rack 54 to rotate to move the discharge pipe 22 out of the forging area of ​​the first push plate 41.

[0046] Reference Figure 6 and Figure 7 A blocking mechanism 6 is provided at the lower end of the feed pipe 21. The blocking mechanism 6 includes two baffles 61 slidably mounted on the bottom wall of the lower end of the feed pipe 21. When the baffles 61 slide into the feed pipe 21, the baffles 61 are used to block the rolling of the steel section in the feed pipe 21. The space between the two baffles 61 can only accommodate one heated steel section.

[0047] Reference Figure 6 and Figure 7 The two baffles 61 are parallel to each other and a switching rack 63 is fixedly installed on each baffle 61. A switching gear 62 is rotatably installed on the frame 1 and meshes with the two switching racks 63. A driving rack 64 is fixedly installed on the discharge pipe 22, and the driving rack 64 meshes with the switching gear 62. The driving rack 64 is parallel to the second rack 54.

[0048] Reference Figure 6 and Figure 7 When the discharge pipe 22 moves out of the forging area of ​​the first push plate 41, the driving rack 64 drives the switching gear 62 to rotate, so that the baffle 61 located below moves up to close the feed pipe 21, and the baffle 61 located above moves down to open the feed pipe 21, and the steel section in the feed pipe 21 rolls to the baffle 61 located below and is blocked.

[0049] Reference Figure 6 and Figure 7When the discharge pipe 22 moves to the forging area of ​​the first push plate 41 and is aligned with the support plate 32, the baffle 61 located below moves down and is fully opened, and the baffle 61 located above moves up to close the feed pipe 21. A steel section in the feed pipe 21 rolls down onto the support plate 32 along the direction of the feed pipe 21-discharge pipe 22, and the remaining steel sections are blocked by the baffle 61 located above.

[0050] And because the baffle 61 is slidably installed on the bottom wall of the feed pipe 21, the baffle 61 and the feed pipe 21 can be flushed with water to dissipate heat synchronously, and water is not easy to flow into the feed pipe 21 to cause the heated steel section in the feed pipe 21 to cool down prematurely.

[0051] Reference Figure 4 and Figure 5 One end of the support plate 32 abuts against the end surface of the switching wheel 31, and the arc-shaped groove of the support plate 32 is always aligned with one of the punching holes 311 of the switching wheel 31. One end of the upsetting head 411 is slidably installed in one end of the arc-shaped groove of the support plate 32, and the two ends of the arc-shaped groove of the support plate 32 are limited by the upsetting head 411 and the switching wheel 31.

[0052] Reference Figure 4 and Figure 5 A limit plate 322 is vertically slidably installed on both sides of the groove of the support plate 32, and a support spring for supporting the limit plate 322 is provided between the limit plate 322 and the frame 1, and the lower end of the discharge pipe 22 abuts against the top wall of the limit plate 322.

[0053] Since the interference between the discharge pipe 22 and the upsetting head 411 needs to be taken into consideration, there is a gap between the discharge pipe 22 and the support plate 32, and the gap is compensated by the limiting plate 322 so that the steel section falling onto the support plate 32 will not fall off the support plate 32 under the limitation of the limiting plate 322.

[0054] Reference Figure 4 and Figure 5 An inclined guide surface 33 is provided at one end of the limit plate 322. When the first push plate 41 is pushed, the limit plate 322 is pushed to slide by the guide surface 33 to avoid interference between the limit plate 322 and the first push plate 41. When one end of the steel segment enters the punching hole 311, the limit plate 322 is completely hidden under the support plate 32. When the steel segment slides, it is further limited to prevent it from falling.

[0055] After the second notching head 413 completes notching, the inner diameter of the center hole of the flange nut 7 is smaller than the specified inner diameter, and the shape of the center hole of the flange nut 7 is deformed due to the extrusion during notching.

[0056] Reference Fig. 9 and Fig.10To address this situation, the present application has a punching head 414 coaxially slidably installed in the second notching head 413 with a deeper notching depth, and at the same time, two first pushing cylinders 44 and a second pushing cylinder 45 are fixedly installed on the frame 1. The two first pushing cylinders 44 are respectively used to push the first push plate 41 and the second push plate 42 to slide, and the second pushing cylinder 45 is used to push the punching head 414 to slide.

[0057] Reference Figure 4 , Fig. 9 and Fig.10 A first button 441 is fixedly installed in the first push plate 41, and a first pressure plate is fixedly installed on the side wall of the punching head 414. When the notching head 413 completes notching, the punching head 414 slides in the opposite direction under the push of the flange nut 7 to press the first button 441 through the first pressure plate. At this time, the second pushing cylinder 45 starts to push the punching head 414 to perform a secondary punching on the center of the flange nut 7 to correct the center hole of the flange nut 7.

[0058] Reference Figure 4 and Fig.10 A second button 46 for resetting the first push cylinder 44 and the second push cylinder 45 is fixedly installed on the frame 1, and a second pressure plate is fixedly installed on the side wall of the piston rod of the second push cylinder 45. When the second push cylinder 45 pushes the punching head 414 to complete the correction of the center hole of the flange nut 7, the second pressure plate presses the second button 46, and the first push cylinder 44 and the second push cylinder 45 are reset.

[0059] Reference Fig. 9 A reset spring 43 is provided inside the second notching head 413 to reset the punching head 414 after the first push cylinder 44 and the second push cylinder 45 are reset. The first push cylinder 44 and the second push cylinder 45 are both oil cylinders.

[0060] Reference Figure 5 , Fig.10 and Fig.11 A starting wheel 12 is coaxially fixedly installed on the mounting axis of the switching wheel 31, and a plurality of push rods 121 are fixedly installed circumferentially on the side wall of the starting wheel 12, and the starting wheel 12 is located inside the frame 1. A third button 13 is fixedly installed inside the frame 1, and the third button 13 is located on the upper side of the starting wheel 12. When the third button 13 is pressed, the first push cylinder 44 for pushing the second push plate 42 is started.

[0061] When the switching wheel 31 rotates one grid so that the next punching hole 311 corresponds to the support plate 32, the starting wheel 12 also rotates synchronously until one of the push rods 121 is opposite to the third button 13 and presses against the third button 13, and the third button 13 is pressed by the push rod 121. After the third button 13 is pressed, the first push cylinder 44 of the second push plate 42 is activated to push the second push plate 42 out.

[0062] Reference Figure 4 , Figure 5 and Fig.12 A third pressing plate 14 is fixedly mounted on the piston rod of the first pushing cylinder 44 of the second pushing plate 42, and a fourth button 15 for starting the first pushing cylinder 44 of the first pushing plate 41 is fixedly mounted on the frame 1. When the second pushing plate 42 is pushed out, the third pressing plate 14 presses the fourth button 15 to start the first pushing cylinder 44 of the first pushing plate 41.

[0063] The buttons mentioned above may also be replaced by pressure sensors, proximity sensors, light sensors and corresponding triggering elements.

[0064] Through the above method, on the first hand, the overall die-casting speed can be adjusted by adjusting the rotation speed of the switching wheel 31, and the adjustment is relatively convenient. The sliding and resetting of the first push plate 41, the second push plate 42 and the punching head 414 are started in sequence by pressing the first button 441, the second button 46, the third button 13 and the fourth button 15 in sequence. The starting sequence of the first push plate 41, the second push plate 42 and the punching head 414 is not prone to errors.

[0065] The implementation principle of a locking nut forming processing equipment according to an embodiment of the present application is as follows: the switching wheel 31 starts to rotate a specified angle and then stops while pressing the third button 13; the first pushing cylinder 44 of the second push plate 42 starts to push out the second push plate 42 while pressing the fourth button 15; at the same time, the forging head 421 on the second push plate 42 is inserted into the stamping hole 311, and the ejecting head 422 ejects the flange nut 7 forged in the stamping hole 311; the first pushing cylinder 44 of the first push plate 41 starts to push out the first push plate 41; at the same time, the first push plate 41 pushes down the limiting plate 322, and the upsetting head 411 pushes the heated steel section into the stamping hole 311 for upsetting; at the same time, the first push plate 41 drives the first rack 52 to slide, the first rack 52 drives the first gear 51 to rotate, the first gear 51 drives the second gear 53 to rotate through the bevel gear, the second gear 53 drives the second rack 54 to slide, and the second rack 54 drives the discharge pipe 22 to slide out of the die-casting area of ​​the first push plate 41.

[0066] As the discharge pipe 22 slides out, the switching gear 62 is driven to rotate by driving the rack 64, and the switching gear 62 drives the two baffles 61 to slide through the two switching racks 63, so that the baffle 61 located at the bottom closes the lower end of the feed pipe 21, and the baffle 61 located on the upper side opens the feed pipe 21. The heated steel section in the feed pipe 21 rolls to the lower end of the feed pipe 21 under the action of gravity and is blocked by the baffle 61.

[0067] At the same time, when the second punching head 413 completes punching the sealing groove 71 of the flange nut 7, the flange nut 7 pushes the punching head 414 to slide in the opposite direction and then presses the first button 441 through the first pressure plate, and the second push cylinder 45 starts to push the punching head 414 to punch and correct the center hole of the flange nut 7. When the punching is completed, the second push cylinder 45 presses the second button 46 through the second pressure plate, and the first push cylinder 44 and the second push cylinder 45 are both reset, and the punching head 414 is reset under the action of the reset spring 43.

[0068] At this time, driven by the first push plate 41, the discharge pipe 22 is realigned with the support plate 32, and the limit plate 322 rises and docks with the discharge pipe 22 under the action of the supporting spring. The discharge pipe 22 drives the switching gear 62 to rotate in the opposite direction through the driving rack 64, and the baffle 61 on the lower side moves down to open the feed pipe 21, and the baffle 61 on the upper side slides up to close the feed pipe 21, and the steel section between the two baffles 61 rolls along the discharge pipe 22 to the support plate 32 to complete the loading.

[0069] The above process is repeated, and the heated steel section is upset in turn under the action of the switching wheel 31, and the flange nut 7 is punched and formed, and the center hole is corrected at the same time before the material is discharged.

[0070] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A locking nut forming and processing equipment, characterized in that: The invention comprises a frame (1), a loading device (2) arranged on the frame (1), a conveying device (3) for transporting a heated steel segment conveyed by the loading device (2), and a forming device (4) for cooperating with the conveying device (3) to forge and form the heated steel segment, wherein the forming device (4) is used to sequentially upset the heated steel segment on the conveying device (3), punch holes in the upset steel segment and form it into a conventional flange nut (7), and notch the formed flange nut (7), and the forming device (4) performs multiple notching in a sequentially deepening manner during notching to form a sealing groove (71) on the flange nut (7), and the last time the forming device (4) performs notching to form a sealing groove (71) After stamping, the aperture of the center hole of the flange nut (7) is adjusted to be smaller than the specified aperture, and the forming device (4) is also used to perform punching correction on the center hole of the flange nut (7) simultaneously with the last stamping of the sealing groove (71); the feeding device (2) includes a feeding pipe (21) and a discharging pipe (22), and the feeding pipe (21) and the discharging pipe (22) are both inclined, the upper end of the feeding pipe (21) is connected to the discharging end of the heating furnace, and the lower end of the discharging pipe (22) extends to the feeding end of the conveying device (3), the upper end of the discharging pipe (22) is connected to the lower end of the feeding pipe (21), and the feeding pipe (21) is connected to the feeding end of the conveying device (3). ) is provided at the lower end thereof with a blocking mechanism (6) for intermittently blocking the steel section according to the punching speed of the forming device (4); the conveying device (3) comprises a switching wheel (31) rotatably mounted on the frame (1) and a support plate (32) arranged on the frame (1), a plurality of punching holes (311) for punching conventional flange nuts (7) are arranged at intervals circumferentially on the switching wheel (31), the support plate (32) is used to receive the steel section dropped from the discharge pipe (22), and one end of the support plate (32) is always aligned with one of the punching holes (311) of the switching wheel (31); the forming device (4) comprises a sliding member mounted on the frame ( 1), the first push plate (41) being provided with an upsetting head (411) for pushing a steel section from the support plate (32) into a punching hole (311) for upsetting, a punching forming head (412) for punching the upset steel section in cooperation with the punching hole (311), and a plurality of notching heads (413) for punching a sealing groove (71) on a flange surface of a formed flange nut (7), the punching depth of the notching heads (413) being gradually deepened, and the notching head (413) with the deepest punching depth being provided with a punching head (414) for performing secondary punching processing on the center hole of the flange nut (7) after deformation due to the notching;The punching head (414) is coaxially slidably mounted on the notching head (413); a first pushing cylinder (44) and a second pushing cylinder (45) are provided on the frame (1); the first pushing cylinder (44) is used to push the first pushing plate (41); the second pushing cylinder (45) is used to push the punching head (414); a first button (441) for starting the second pushing cylinder (45) is provided on the first pushing plate (41); a second button (46) for resetting the first pushing cylinder (44) and the second pushing cylinder (45) is provided on the frame (1); when the notching head (413) completes notching, the flange nut (7) pushes the punching head (414) The first button (441) is slidably pressed, and the second push cylinder (45) starts to push the punching head (414) to punch holes. When the punching is completed, the piston rod of the second push cylinder (45) presses the second button (46), and the first push cylinder (44) and the second push cylinder (45) are reset. A reset spring (43) for resetting the punching head (414) is provided in the notching head (413); an arc groove (321) for placing steel sections is provided on the support plate (32), and limit plates (322) are vertically slidably installed on the support plate (32) on both sides of the arc groove (321), and one end of the upsetting head (411) slides The first push plate (41) is installed in the arc groove (321), and the limit plate (322) is provided with a guide surface (33) for cooperating with the first push plate (41) to push the limit plate (322) to slide. The frame (1) is provided with a support spring for supporting the limit plate (322); one end of the discharge pipe (22) extends to the top wall of the limit plate (322), and the discharge pipe (22) is slidably installed on the frame (1). The first push plate (41) and the discharge pipe (22) are connected by gear rack and bevel gear. When the first push plate (41) is pushed out, the discharge pipe (22) is driven by the first push plate (41) to move from The stamping area of ​​the first push plate (41) moves out; the blocking mechanism (6) comprises two baffles (61) slidably mounted on the lower end of the feed pipe (21); a switching gear (62) is rotatably mounted on the frame (1); both baffles (61) are provided with a switching rack (63) meshing with the switching gear (62); the discharge pipe (22) is provided with a driving rack (64) meshing with the switching gear (62); when the discharge pipe (22) slides out of the stamping area of ​​the first push plate (41), the baffle (61) located above slides to open the feed pipe (21), and the baffle (61) located below slides to close the feed pipe (21). ; 2. The anti-loosening nut forming and processing equipment according to claim 1 is characterized in that: The baffle (61) is located on the bottom wall of the feed pipe (21).

3. The anti-loosening nut forming and processing equipment according to claim 1 is characterized in that: The punching hole (311) passes through the switching wheel (31); a second push plate (42) is slidably mounted on the frame (1) on the side of the switching wheel (31) away from the first push plate (41); the second push plate (42) is provided with a forging head (421) corresponding to the upsetting head (411), the punching head (412) and the notching head (413); the forging head (421) is used to cooperate with the upsetting head (411), the punching head (412) and the notching head (413) to perform hot forging; the second push plate (42) is also provided with an ejector head (422) for ejecting a flange nut (7) in the punching hole (311).

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