Apparatus and method for machining an anchoring portion at the end of a bar

Abstract

The present application relates to the technical field of upsetting, and particularly relates to an equipment and method for processing an anchoring part at the end of a rod, wherein the equipment comprises: a feeding device for discharging the rods from a discharge port one by one, a conveying device arranged at the discharge port and used for receiving the rods and moving the rods along a conveying direction, a heating device arranged at the side of the conveying direction and used for heating the end of the rod and making the end of the rod reach a temperature at which plastic deformation can occur, a transfer device arranged at the end of the conveying direction and used for receiving the rods and moving the rods to a grabbing station, a grabbing device arranged in the grabbing station and used for grabbing the rods in the grabbing station and making the rods enter an upsetting station, and an upsetting device arranged in the upsetting station and used for upsetting the heated end of the rod to form the anchoring part. The present application can realize continuous automatic processing of multiple rods.

Description

Technical Field

[0001] This invention relates to the field of upsetting technology, and in particular to equipment and methods for machining anchoring portions at the ends of rods. Background Technology

[0002] Currently, reinforcing bars used in reinforced concrete structures are anchored by bending their ends into U- or L-shapes, which then fix them to other reinforcing bars and concrete. However, to increase the fixation strength relative to concrete, the U- or L-shaped sections of the reinforcing bars must be enlarged, resulting in increased volume, making construction difficult in confined spaces, and increasing the difficulty and cost of bending the steel ends.

[0003] To address the aforementioned issues, some have proposed reinforcing bars with anchorage sections. These bars are formed by high-temperature upsetting of the ends to create an enlarged diameter section, resembling the head of a nail, which serves as the anchorage. Compared to U-shaped or L-shaped anchorage sections, the circular enlarged diameter section ensures a larger effective area even with a smaller external dimension, thus increasing the fixation strength relative to other reinforcing bars or concrete.

[0004] To achieve the aforementioned circular plate-shaped expansion at the end of reinforcing bars, Chinese invention patent (CN106077367B) discloses a heating upsetting device for reinforcing bar ends. This device effectively clamps the reinforcing bars, enabling precise positioning during the upsetting process, thus ensuring the upsetting quality of the reinforcing bar ends and significantly improving the efficiency of reinforcing bar end upsetting. However, this device requires manual placement of each reinforcing bar individually into the device, and manual removal of the processed product after completion. It cannot achieve continuous automatic processing of multiple reinforcing bars, resulting in low automation and impacting production efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide equipment and methods for processing anchoring parts at the ends of rods, which can realize continuous automatic processing of multiple rods, improve the automation level of equipment, and increase production efficiency.

[0006] To achieve the above objectives, in a first aspect, an apparatus for processing an anchoring portion at the end of a rod is provided, comprising: a feeding device having a discharge port and discharging the rods one by one from the discharge port; a conveying device disposed at the discharge port for receiving the rods and moving the rods along a conveying direction; a heating device disposed to the side of the conveying direction for heating the end of the rods and raising the end of the rods to a temperature capable of plastic deformation; a conveying device disposed at the end of the conveying direction for receiving the rods and moving the rods to a gripping station; a gripping device disposed within the gripping station for gripping the rods located within the gripping station and moving the rods into an upsetting station; and an upsetting device disposed within the upsetting station for upsetting the heated end of the rods to form the anchoring portion.

[0007] In some embodiments, the feeding device includes: a storage box for storing the rods and a stepped feeding mechanism disposed in the storage box for moving the rods one by one toward the discharge port in a stepped manner. The stepped feeding mechanism includes: a fixed step and a movable step disposed on the side of the fixed step and capable of moving up and down under the drive of the feeding drive assembly. A height-limiting channel is provided on the side of the fixed step closest to the discharge port. The height of the height-limiting channel is configured such that only one rod can pass through in the height direction.

[0008] In some embodiments, the conveying device includes a conveyor belt and a rotary drive mechanism for driving the conveyor belt to rotate. The conveying direction is defined by the rotation direction of the conveyor belt. The surface of the conveyor belt is provided with a plurality of rod support seats. Each rod support seat has a rod inlet and outlet for rods to enter and exit, and a rod support groove communicating with the rod inlet and outlet for accommodating the rods. The conveying device also includes a push rod disposed in a direction opposite to the heating device. A push rod drive assembly is connected to the push rod for driving the push rod to move along a direction perpendicular to the conveying direction. An alignment plate is disposed in a direction opposite to the push rod for aligning the ends of the rods.

[0009] In some embodiments, the heating device includes an induction furnace and at least two heating plates that serve as the output end of the induction furnace, with a heating area formed between the at least two heating plates, and one side of the conveying device passing through the heating area.

[0010] In some embodiments, the conveying device includes a plurality of rod support rollers arranged in a straight line, with rod receiving grooves formed above the rod support rollers for accommodating the rods. The rod support rollers are rotatable, thereby driving the rods to move axially. A limit rod is provided above the rod support rollers, and the limit rod is used to abut against the axially moved rod.

[0011] In some embodiments, the conveying device is able to enter or leave the gripping station. When the conveying device is at the gripping station, it is able to receive the rod from the conveying device. When the conveying device leaves the gripping station, the gripping station is connected to the upsetting station below, and the gripping device is able to move downward to allow the rod to enter the upsetting station.

[0012] In some embodiments, the conveying device includes a plurality of rod support rollers arranged in a straight line, with rod receiving grooves formed above the rod support rollers for accommodating the rods. The plurality of rod support rollers are disposed on a moving plate, and a moving drive assembly is connected to the moving plate. The moving drive assembly is configured to drive the moving plate to move horizontally, so that the rod support rollers enter or leave the gripping station.

[0013] In some embodiments, the gripping device includes a gripper, a first gripping drive assembly for driving the gripper to move up and down to allow the rod located at the gripping station to enter the upsetting station, and a second gripping drive assembly for driving the gripper to move along the axial direction of the rod to connect the rod located in the upsetting station to the upsetting device. The gripper includes a first clamping arm and a second clamping arm disposed opposite to each other, forming a gripping space for gripping the rod between the first clamping arm and the second clamping arm. A bending portion is provided in the gripping space, which causes the gripping space to bend in the vertical direction. The bending portion is used to provide support force to the rod in the gripping space from below.

[0014] In some embodiments, the upsetting device includes an upsetting die having a forming cavity that matches the shape of the anchoring part, a clamping mechanism disposed on the outer periphery of the upsetting die for fixing the upsetting die, a pushing mechanism disposed at one end of the upsetting die and coaxial with the forming cavity, and a stamping mechanism disposed at the other end of the upsetting die and coaxial with the forming cavity. The pushing mechanism includes a pushing rod that can move axially along the forming cavity, the pushing rod being used to apply an axial force to the unheated end of the rod. The stamping mechanism includes a stamping die that can move axially along the forming cavity, the stamping die being used to apply an axial force to the heated end of the rod, causing the heated end of the rod to undergo plastic deformation.

[0015] The stamping die includes a first stamping die with a first groove on the end face, a second stamping die with a second groove on the end face, and a third stamping die with a flat end face. The depth of the first groove is greater than the depth of the second groove, and the diameter of the first groove is smaller than the diameter of the second groove. The first stamping die, the second stamping die, and the third stamping die are used to upset the rod in stages.

[0016] The first stamping die, the second stamping die, and the third stamping die are mounted on a die mounting plate. The die mounting plate is provided with a die driving assembly for moving the die mounting plate. The die driving assembly makes the first stamping die, the second stamping die, and the third stamping die coaxially arranged with the forming cavity in sequence.

[0017] Secondly, a method for machining an anchoring portion at the end of a member is provided, using the aforementioned equipment for machining an anchoring portion at the end of a member, comprising the following steps:

[0018] The feeding device discharges the rods one by one from the discharge port.

[0019] The conveying device receives the rods discharged from the outlet and arranges them individually. The rods move along the conveying direction, and their ends pass through a heating device that heats them to a temperature capable of plastic deformation.

[0020] The rod enters the conveying device and is moved by the conveying device to the gripping station.

[0021] The gripping device grips the rod located in the gripping station and moves the rod into the upsetting station.

[0022] The upsetting device upsets the heated end of the rod to form the anchoring part.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows: the feeding device allows the rods to be discharged one by one from the outlet, which is beneficial for the conveying device to receive the rods and to arrange and limit each rod individually, ensuring that the end of each rod has sufficient length to be heated by the heating device. The conveying device can adjust the position of the rods so that the rods are accurately located in the gripping station, which not only facilitates the gripping device to grip them, but also facilitates the gripping device to put the rods into the upsetting device. The upsetting device can upset the heated end of the rod to form an anchoring part, thereby realizing the automated processing of the rods. The equipment provided by the present invention can continuously and automatically process multiple rods, improving production efficiency. Attached Figure Description

[0024] Figure 1(a) is a schematic diagram of the initial state of the rod provided in an embodiment of the present invention. Figure 1 (b) is a schematic diagram of an anchoring part machined at one end of a rod provided in an embodiment of the present invention.

[0025] Figure 2 This is a schematic diagram from one perspective of the device for machining anchoring parts at the end of a rod, provided in an embodiment of the present invention.

[0026] Figure 3 This is a schematic diagram from another perspective of the device for machining anchoring parts at the ends of rods, provided in an embodiment of the present invention.

[0027] Figure 4 This is a perspective view of the feeding device provided in an embodiment of the present invention after the right baffle has been removed.

[0028] Figure 5 This is a side view of the feeding device provided in an embodiment of the present invention after the right baffle has been removed.

[0029] Figure 6 This is a perspective view of a portion of the feeding device and the conveying device provided in an embodiment of the present invention.

[0030] Figure 7 A side view of a portion of the feeding device and the conveying device provided in an embodiment of the present invention.

[0031] Figure 8 A perspective view of a portion of the conveying device, the transmission device, and the gripping device provided in an embodiment of the present invention.

[0032] Figure 9 A side view of a portion of the conveying device, the transmission device, and the gripping device provided in an embodiment of the present invention.

[0033] Figure 10 A perspective view of the conveying device provided in an embodiment of the present invention.

[0034] Figure 11 This is a schematic diagram of an upsetting device provided in an embodiment of the present invention.

[0035] Figure 12 This is a top view of the upsetting apparatus provided in an embodiment of the present invention.

[0036] Figure 13 This is an exploded view of the upsetting device provided in an embodiment of the present invention after the support has been removed.

[0037] Figure 14 This is a schematic diagram of a clamping mechanism provided in an embodiment of the present invention.

[0038] Figure 15 The diagram shows three different stamping dies provided in the embodiments of the present invention.

[0039] Figure 16 A cross-sectional view of the first stamping die and the second stamping die provided in an embodiment of the present invention.

[0040] Figure 17 This is a schematic diagram of the discharge device provided in an embodiment of the present invention. Detailed Implementation

[0041] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present invention are shown in the accompanying drawings, not all of them.

[0042] Figure 1 Figure 'a' shows a schematic diagram of the initial state of member 8. Figure 1 Figure b shows a schematic diagram of an anchoring part 81 machined at one end of the rod 8. The anchoring part 81 has a circular plate shape and is integrally formed on the rod 8. The diameter of the anchoring part 81 is larger than the diameter of the rod 8.

[0043] To achieve the processing of the anchoring part 81, upsetting is usually used. Specifically, the end of the rod 8 where the anchoring part 81 needs to be processed is first heated to a temperature that allows for plastic deformation. Then, the rod 8 is fixed, and an upsetting mold 62 with a forming cavity 622 matching the shape of the anchoring part 81 is installed at the end where the anchoring part 81 needs to be processed. Next, along the axial direction of the rod 8, an axial force is applied towards the inside of the rod 8 at both ends, causing axial compression at the end of the rod 8 where the anchoring part 81 needs to be processed, thereby plastic deformation. The deformed part then fills the forming cavity 622 of the upsetting mold 62, and finally the anchoring part 81 is formed at the end of the rod 8.

[0044] It should be noted that member 8 is usually a steel bar, especially a steel bar used in concrete structures, such as a steel bar used for connection on embedded parts, but it is not limited to this. Any member 8 made of metal or alloy is included.

[0045] In order to achieve automated processing of the above-mentioned rod 8 with anchoring part 81, the present invention provides a device for processing anchoring parts at the ends of rods. This device can continuously and automatically process multiple rods 8, thereby improving production efficiency.

[0046] Figure 2 and Figure 3 Schematic diagrams of the equipment for machining anchoring portions at the ends of rods are shown from two different perspectives. Please refer to... Figure 2 and Figure 3The equipment for processing anchoring parts at the ends of the rods includes a feeding device 1 for discharging the rods 8 one by one, a conveying device 2 located at the discharge port 13 of the feeding device 1 for conveying the rods 8 after they are arranged, a heating device 3 located on the side of the conveying device 2 in the conveying direction for heating the ends of the rods 8 to a temperature that allows for plastic deformation, a conveying device 4 located at the end of the conveying device 2 in the conveying direction for receiving the rods 8 and conveying them to the gripping station, a gripping device 5 located above the gripping station for gripping the rods 8 located in the gripping station and moving the rods 8 into the upsetting station, an upsetting device 6 located inside the upsetting station for upsetting the heated ends of the rods 8, and a discharge port 611 located below the upsetting device 6. In addition, the equipment also includes necessary components such as a power distribution box, a hydraulic station compressed air source, and sensors, which will not be described in detail here.

[0047] The general process of using this device is as follows.

[0048] First, several roughly parallel rods 8 are placed into the feeding device 1 with their axes extending horizontally. The feeding device 1 organizes the rods 8 and moves them to the discharge port 13 of the feeding device 1. The discharge port 13 of the feeding device 1 ensures that only one rod 8 is discharged from the discharge port 13 at a time.

[0049] Next, the rods 8 discharged from the discharge port 13 of the feeding device 1 enter the conveying device 2. The conveying device 2 arranges and limits each rod 8 individually so that the position of the rod 8 will not shift during the conveying process. The conveying direction of the conveying device 2 is in the horizontal direction along the axis perpendicular to the rod 8. Since the heating device 3 is set on the side of the conveying direction, one end of the rod 8 will pass through the heating device 3 for a period of time during the conveying process, thereby being heated to a temperature that can cause plastic deformation. Finally, the rods 8 are discharged one by one from the end of the conveying device 2.

[0050] Next, the rod 8 enters the conveying device 4, and the conveying device 4 drives the rod 8 to move in the axial direction, so that the rod 8 moves to the gripping station.

[0051] Next, the gripping device 5 moves downward to grip the rod 8 and moves the rod 8 to enter the upsetting station;

[0052] Next, the upsetting device 6 upsets the heated end of the rod 8, thereby machining the anchoring part 81 at the end of the rod 8;

[0053] Finally, rod 8 moves downward into discharge port 611 to discharge material.

[0054] Therefore, the equipment provided by the present invention can automatically feed, heat, convey, upset and discharge the rod 8, realizing automated processing and improving production efficiency.

[0055] The structure and working principle of each device will be introduced in turn according to the processing direction after the rod 8 enters the equipment.

[0056] Figure 4 and Figure 5 A perspective view and a side view of the feeding device 1 after the right baffle has been removed are shown respectively. Please refer to... Figure 4 and Figure 5 In this embodiment, the feeding device 1 is a stepped feeding structure, including a storage box 11 for storing rods 8 and a stepped feeding mechanism 12 disposed inside the storage box 11. The storage box 11 has a storage cavity and a discharge port 13 communicating with the storage cavity. The discharge port 13 is located at the top of the storage cavity. The stepped feeding mechanism 12 is connected between the storage cavity and the discharge port 13 and is used to lift the rods 8 in the storage cavity upward to the discharge port 13.

[0057] like Figure 4 and Figure 5 As shown, the storage bin 11 includes an inclined storage support plate 111. The upper end of the storage support plate 111 is located at the left end of the storage bin 11, and the lower end of the storage support plate 111 is located inside the storage bin 11. The upper surface of the storage support plate 111 defines the bottom of the storage cavity. The storage support plate 111 is used to support the rod 8 located inside the storage cavity. When the axis of the rod 8 is inserted into the storage bin 11 with its axis extending horizontally to the left and right, the rod 8 will roll downward along the inclined upper surface of the storage support plate 111 until it is located at the lower end of the storage support plate 111.

[0058] like Figure 4 and Figure 5 As shown, a first length limiting plate 112 and a second length limiting plate 113 are vertically arranged above the storage support plate 111. The first length limiting plate 112 and the second length limiting plate 113 respectively define the left side and the right side of the storage cavity. The distance between the first length limiting plate 112 and the second length limiting plate 113 limits the maximum length of the rod 8 that can be placed into the storage cavity.

[0059] In this embodiment, the first length limiting plate 112 is a left baffle fixedly disposed on the left side of the storage box 11, and the second length limiting plate 113 is a movable plate disposed between the left baffle and the right baffle (not shown) of the storage box 11 and capable of moving left and right. By adjusting the left and right position of the second length limiting plate 113, the width of the storage cavity can be adjusted. Figure 4 The length in the left and right directions is adjusted so that the width of the storage cavity can be adapted to rods of different lengths.

[0060] like Figure 4 and Figure 5 As shown, in order to avoid a large number of rods 8 piling up at the lower end of the storage support plate 111 at the same time, which would prevent the rods 8 from entering the stepped feeding mechanism 12 and cause congestion and blockage, a baffle 114 can be set above the lower end of the storage support plate 111. There is a gap between the lower end of the baffle 114 and the upper surface of the storage support plate 111, thereby forming a channel for the rods 8 to pass through. The reasonable setting of the height of the channel can ensure that only a small number of rods 8 pass through the channel at a time, so as to facilitate the subsequent feeding of the rods 8 by the stepped feeding device 1.

[0061] like Figure 4 and Figure 5 As shown, the aforementioned stepped feeding mechanism 12 is provided at the lower end of the storage support plate 111. The stepped feeding mechanism 12 includes a fixed step 121 and a movable step 122 located on one side of the fixed step 121 and capable of moving up and down. The stroke of the movable step 122 needs to ensure that when the movable step 122 moves upward, its top surface can exceed the top surface of the fixed step 121 located one level above it. This allows the rod 8 located on the top surface of the movable step 122 to move to the top surface of the next level of the fixed step 121, thus realizing the stepped movement of the rod 8. In this embodiment, the "upper level" refers to the step located in the direction of the designated step closer to the discharge port 13, and the "lower level" refers to the step located in the direction of the designated step farther away from the discharge port 13.

[0062] like Figure 4 and Figure 5 As shown, in this embodiment, the left and right ends of the fixed step 121 are fixedly connected to the left and right baffles of the storage box 11, respectively. The fixed step 121 extends longitudinally in general, but at an angle to the vertical direction, that is, the fixed step 121 is inclined, with the lower end closer to the storage cavity and the upper end closer to the discharge port 13. The top surface of the fixed step 121 is used to temporarily support the rod 8. The top surface is also inclined, with the upper end closer to the storage cavity and the lower end closer to the discharge port 13. Thus, when the rod 8 is located on the top surface of the fixed step 121, the rod 8 is relatively close to the discharge port 13, preventing the rod 8 from sliding to the left and falling back into the storage cavity.

[0063] like Figure 4 and Figure 5As shown, in this embodiment, there are four fixed steps 121. The four fixed steps 121 are parallel to each other and gradually move closer to the location of the discharge port 13. The four fixed steps 121 are defined as follows according to their position relative to the discharge port 13 from farthest to closest: first fixed step segment 121a, second fixed step segment 121b, third fixed step segment 121c, and fourth fixed step segment 121d. The height difference between the first fixed step segment 121a, the second fixed step segment 121b, and the third fixed step segment 121c is the same. The upper end of the third fixed step segment 121c and the lower end of the fourth fixed step segment 121d are connected by a transverse connecting member 14. A height limiting plate 15 is provided above the transverse connecting member 14. A height limiting channel is formed between the height limiting plate 15 and the transverse connecting member 14. The height difference of the height limiting channel is greater than the diameter of a rod 8, but less than twice the diameter of the rod 8. By setting a height limiting plate 15, only one rod 8 can enter the height-limited channel at a time, thereby ensuring that only one rod 8 can be discharged from the fourth fixed step section 121d at a time, thus achieving the goal of only one rod 8 being discharged from the discharge port 13 of the feeding device 1 at a time. In this embodiment, the discharge port 13 of the feeding device 1 is the top surface of the fourth fixed step section 121d.

[0064] like Figure 4 and Figure 5 As shown, in this embodiment, the movable step 122 includes a first movable step segment 122a and a second movable step segment 122b. The second movable step segment 122b refers to the movable step segment closest to the discharge port 13. That is, the second movable step segment 122b is located between the transverse connecting component 14 and the fourth fixed step segment 121d. The remaining movable step segments can be considered as the first movable step segment 122a. That is, the first movable step segment 122a is located on the same side of the first fixed step 121, the second fixed step segment 121b, and the third fixed step segment 121c.

[0065] like Figure 4 and Figure 5As shown, in this embodiment, there are three first movable step segments 122a, which are respectively arranged on the left side of the first fixed step 121, the second fixed step segment 121b, and the third fixed step segment 121c. The three first movable step segments 122a are fixedly connected to each other through the connecting seat 16 located below. The two sides of the connecting seat 16 can be slidably connected to the left baffle and the right baffle of the storage box, respectively. The connecting seat 16 is provided with a first feeding drive component 123 that can drive the connecting seat 16 to move up and down. The first feeding drive component 123 can be a component with a linear displacement output end, such as a cylinder or a hydraulic cylinder. The first feeding drive component 123 is fixedly arranged on the storage box 11. The output end of the first feeding drive assembly 123 has a first position and a second position. When the output end is in the first position, the height of the top surface of the first movable step segment 122a is lower than or equal to the height of the top surface of the next fixed step 121, allowing the rod 8 on the next fixed step 121 to move onto the corresponding first movable step 122. When the output end is in the second position, the height of the top surface of the first movable step segment 122a is higher than or equal to the height of the top surface of the previous fixed step 121, allowing the rod 8 on the top surface of the first movable step segment 122a to move onto the corresponding fixed step 121. Through the continuous reciprocating motion of the first feeding drive assembly 123, the step-like feeding of the rod 8 can be achieved, ultimately allowing the rod 8 to enter the transverse connecting component 14.

[0066] like Figure 4 and Figure 5 As shown, a second feeding drive assembly 124 is provided at the lower part of the second movable step section 122b, which can drive the second movable step section 122b to move up and down. The second feeding drive assembly 124 can be a component with a linear displacement output end, such as a cylinder or hydraulic cylinder. The second feeding drive assembly 124 is fixedly mounted on the left or right baffle of the storage box 11. The output end of the second feeding drive assembly 124 has a first position and a second position. When the output end is in the first position, the height of the top surface of the second movable step section 122b is lower than or equal to the height of the lower end of the transverse connecting member 14, so that the lowest rod 8 on the transverse connecting member 14 can enter the top surface of the second movable step section 122b. When the output end is in the second position, the height of the top surface of the second movable step section 122b is higher than or equal to the height of the top surface of the fourth fixed step section 121d, so that the rod 8 on the top surface of the second movable step section 122b can enter the top surface of the fourth fixed step section 121d. Through the continuous reciprocating motion of the second feeding drive assembly 124, the rods 8 can be discharged one by one from the discharge port 13.

[0067] Figure 6 and Figure 7A perspective view and a side view of the conveying device 2 provided in an embodiment of the present invention are shown respectively. Please refer to... Figure 6 and Figure 7 The conveying device 2 includes a conveyor belt 21 and a rotary drive mechanism 22 for driving the conveyor belt 21 to rotate. The surface of the conveyor belt 21 is provided with a plurality of rod support seats 23 arranged circumferentially around the surface of the conveyor belt 21. The end of the rod support seat 23 away from the surface of the conveyor belt 21 is provided with a rod inlet / outlet 231 for rods 8 to enter. The inside of the rod support seat 23 is provided with a rod support groove 232 communicating with the rod inlet / outlet 231. The groove width of the rod support groove 232 is (…). Figure 7 The width of the groove (in the left-right direction) is slightly larger than the diameter of the rod 8. For example, the groove width is 1.1 times the width between the rods 8, so that after the rod 8 enters the rod bearing groove 232, its position is relatively fixed and it will not deflect at a large angle in the horizontal direction. The rotary drive mechanism 22 includes a first motor 221 and a first sprocket assembly 222 connected to the output shaft of the first motor 221. The conveyor belt 21 is disposed on the first sprocket assembly 222, so that when the first motor 221 drives the first sprocket assembly 222 to move, it can drive the conveyor belt 21 to rotate.

[0068] When the rod 8 is discharged from the discharge port 13 of the feeding device 1, it can just enter the rod bearing groove 232 of a rod bearing seat 23. Thus, each rod 8 is independently placed in a corresponding rod bearing seat 23 for conveying, ensuring that the rods 8 do not interfere with each other. Furthermore, due to the function of the rod bearing groove 232, the position of the rod 8 will not shift during the conveying process, so as to facilitate the subsequent heating of the ends of the rods 8. This ensures that the ends of each rod 8 have sufficient axial length to be heated by the heating device 3, so as to facilitate the subsequent formation of the anchoring part 81.

[0069] like Figure 6 As shown and combined Figure 3On the side of the conveying device 2 away from the heating device 3, there is a push rod 24 for adjusting the axial position of the rod 8 in the rod support seat 23. The push rod 24 is equipped with a push rod drive assembly 25 that drives the push rod 24 to reciprocate along the axial direction of the rod support groove 232. On the side of the conveying device 2 close to the heating device 3, there is an alignment plate 26 opposite to the push rod 24. When the rod 8 moves to the position corresponding to the push rod 24 and the alignment plate 26, the first motor 221 stops rotating, so that the rod 8 temporarily stops at that position. The push rod drive assembly 25 drives the push rod 24 to move toward the position of the rod 8 and pushes the rod 8 to move axially in the rod support groove 232. Finally, the end of the rod 8 close to the alignment plate 26 abuts against the alignment plate 26, thereby adjusting the axial position of the rod 8 in the rod support groove 232 so that the axial position of each rod 8 can meet the heating needs of the subsequent heating device 3. The push rod drive assembly 25 can be a component such as a cylinder whose output end can reciprocate linearly.

[0070] like Figure 6 and Figure 7 As shown, a height limit plate 27 is set above the conveyor belt 21. The lower end of the height limit plate 27 is slightly higher than the rod support seat 23. While ensuring that the rod 8 can pass smoothly under the height limit plate 27, the height of the height limit plate 27 is minimized as much as possible. The purpose of setting the height limit plate 27 is to prevent the rod 8 from falling out of the rod support seat 23 due to vibration during the conveying process.

[0071] like Figure 2 and Figure 3 As shown, in this embodiment, the heating device 3 includes an induction heating furnace 31, such as a medium-frequency furnace or a high-frequency furnace. The output end of the induction heating furnace 31 is provided with two heating plates 32 spaced vertically apart. The two heating plates 32 are parallel to each other, and the area between the two heating plates 32 is the heating zone. As the conveyor belt 21 rotates, at least a portion of the rod support 23 near the heating plates 32 can pass through the heating zone. Therefore, the rod 8 in the rod support 23 will inevitably pass through the heating zone during the conveying process, causing the end of the rod 8 to be heated. Specifically, it needs to be heated to a temperature that causes plastic deformation at the end of the rod 8, typically above 1000 degrees Celsius. To ensure a good heating effect, the rotation speed of the first motor 221 can be reduced (or even stopped), thereby increasing the time the rod 8 spends in the heating zone, and / or increasing the length of the heating plate 32 along the conveying direction of the conveyor belt 21, thus increasing the length of the heating zone in the conveying direction.

[0072] like Figure 6 and Figure 7As shown, an inclined guide plate 28 is provided at the end of the conveyor belt 21. The upper end of the guide plate 28 is close to the conveyor belt 21, and the lower end of the guide plate 28 is close to the conveying device 4. When the rod 8 moves to the end of the conveyor belt 21, the rod support 23 will flip downward, and the rod 8 can fall out from the rod inlet and outlet 231, and then fall onto the guide plate 28, and roll down along the upper surface of the guide plate 28 into the conveying device 4.

[0073] Figure 8 and Figure 9 A perspective view and a side view of the guide plate 28, the conveying device 4, and the gripping device 5 provided in an embodiment of the present invention are shown respectively. Please refer to... Figure 8 and Figure 9 The conveying device 4 includes a plurality of rod support rollers 41 for receiving rods 8. The axes of the plurality of rod support rollers 41 are parallel to each other, and the plurality of rod support rollers 41 are arranged in a straight line, thereby forming rod receiving grooves 42 for placing rods 8 on the upper surface of the plurality of rod support rollers 41. Figure 8 In the middle, the rod receiving groove 42 extends in the left and right direction, which is exactly consistent with the axis direction of the rod 8 rolling down from the guide plate 28, so that the rod 8 can smoothly enter the rod receiving groove 42.

[0074] Figure 10 A perspective view of the conveying device 4 provided in an embodiment of the present invention is shown. Please refer to [link / reference needed]. Figure 10 Several rod support rollers 41 are connected together by a second sprocket assembly 43. A second motor 44 is provided on the second sprocket assembly 43. Driven by the second motor 44, the second sprocket assembly 43 can drive several rod support rollers 41 to rotate simultaneously. As a result, the rod 8 located in the rod receiving groove 42 moves along the rotation direction of the rod support rollers 41, realizing the axial adjustment of the position of the rod 8, so that the subsequent gripping device 5 can grip the rod 8.

[0075] like Figure 8 As shown, a limiting rod 45 is provided on one side above the rod support roller 41. The limiting rod 45 is used to limit the movement of the rod 8. Specifically, when the rod 8 moves on the rod support roller 41, the left end of the rod 8 abuts against the right end of the limiting rod 45, thereby ensuring that the position of the rod 8 is in the correct position, which is defined as the gripping station.

[0076] like Figure 10 As shown, in this embodiment, several rod support rollers 41 are mounted on a movable plate 46, which can move horizontally along a direction perpendicular to the axis of the rod 8. Figure 10The movement is manifested as inward and outward movement. A moving drive assembly 47 is provided on the moving plate 46 to drive the moving plate 46 and achieve the aforementioned movement. The moving drive assembly 47 is fixedly installed and can be a component with a linear reciprocating output end, such as a cylinder or hydraulic cylinder. Under the action of the moving drive assembly 47, the rod support roller 41 can enter or leave the gripping station. The direction of departure is away from the guide plate 28. When the rod support roller 41 is in the gripping station, the rod 8 can enter the rod support roller 41 from the guide plate 28, and the gripping device 5 can grip the rod 8 located in the gripping station. When the rod support roller 41 leaves the gripping station, there is no longer any obstruction from the rod support roller 41 below the gripping device 5, so it can move downwards with the gripped rod 8, passing through the conveying device 4 and entering the upsetting device 6 below. The location of the upsetting device 6 is the upsetting station.

[0077] like Figure 8 and 9 As shown, the gripping device 5 includes a gripper 51, a first gripping drive assembly 52 for driving the gripper 51 to move up and down, and a second gripping drive assembly 53 for driving the gripper 51 to move axially along the rod 8. The gripper 51 includes a first clamping arm 511 and a second clamping arm 512, forming a gripping space 514 between the first clamping arm 511 and the second clamping arm 512. The first clamping arm 511 and the second clamping arm 512 can be mounted on the output end of the gripper cylinder to achieve gripping and releasing actions, or as... Figure 8 In this way, the first clamping arm 511 is a fixed clamping arm, and the second clamping arm 512 is a movable clamping arm. The second clamping arm 512 is located in the direction of the guide plate 28. The second clamping arm 512 is a first elastic pressure plate with elasticity. When the lower end of the second clamping arm 512 abuts against the upper surface of the rod 8, it can be opened, so that the rod 8 enters the gripping space 514. Then, the second clamping arm 512 clamps the rod 8 in the gripping space 514 under the action of elastic force.

[0078] like Figure 9 As shown, the first clamping arm 511 and the second clamping arm 512 have correspondingly positioned bends 513 on their surfaces facing the gripping space 514. Due to the presence of the bends 513, the gripping space 514 is not a straight line in the vertical direction. This means that after the rod 8 enters the gripping space 514, it is subjected not only to the clamping force of the second clamping arm 512 but also to the supporting force provided by the bends 513, ensuring that the rod 8 will not fall downward out of the gripping space 514. After providing the bends 513, the lower end of the second clamping arm 512 can also be designed to extend obliquely outward from the gripping space 514 to enlarge the opening at the lower end of the gripper 51, making it easier to grip the rod 8.

[0079] like Figure 8As shown, in this embodiment, there are three sets of grippers 51, which are spaced apart from each other. The top of the gripper 51 is mounted on a gripper fixing seat 515. The gripper fixing seat 515 is fixedly connected to the output end of the first gripping drive component 52, so that the first gripping drive component 52 can drive the three sets of grippers 51 to rise or fall simultaneously.

[0080] like Figure 8 and 9 As shown, in this embodiment, the gripper fixing seat 515 is rotatably connected to the top of the gripper 51, and the axis of rotation is parallel to the axis of the rod 8. A second elastic pressure plate 54 is fixedly provided on the side of the gripper fixing seat 515 near the guide plate 28. The lower end of the second elastic pressure plate 54 abuts against the gripper 51, so that even if the gripper 51 shakes due to the existence of the bending part 513 during the gripping of the rod 8, it can quickly return to stability.

[0081] like Figure 8 As shown, the first gripping drive assembly 52 is fixedly mounted on the gripping slide 55, which is slidably mounted above the conveying device 4 in the left-right direction. The output end of the second gripping drive assembly 53 is fixedly connected to the gripping slide, thereby driving the gripping slide to move in the left-right direction above the conveying device 4 and adjusting the axial position of the rod 8.

[0082] Figure 11 and Figure 12 A perspective view and a top view of the upsetting apparatus 6 provided in an embodiment of the present invention are shown respectively. Please refer to... Figure 11 and Figure 12 The upsetting device 6 includes a support 61, an upsetting die 62 mounted on the support 61, a clamping mechanism 63 for fixing the upsetting die 62, a pushing mechanism 64 located at one end of the upsetting die 62, and a stamping mechanism 65 located at the other end of the upsetting die 62. When the gripping device 5 places the rod 8 into the upsetting station, the heated end of the rod 8 is inserted into the upsetting die 62, and the axial position of the rod is appropriately adjusted so that both ends of the rod extend to the left and right sides of the upsetting die 62, so that the pushing mechanism 64 and the stamping mechanism 65 can apply axial pressure to the rod 8 respectively.

[0083] Figure 13 An exploded view of the upsetting die 62, clamping mechanism 63, pushing mechanism 64, and stamping mechanism 65 provided in an embodiment of the present invention is shown. Please refer to... Figure 13The upsetting die 62 has a rod mounting hole 621 at its center for mounting the rod 8. The rod mounting hole 621 extends through both ends of the upsetting die 62. The clamping mechanism 63 includes a first clamping seat 631 and a second clamping seat 632. The first clamping seat 631 is fixedly mounted on the bracket 61, and the upsetting die 62 is fixedly mounted on the first clamping seat 631. The second clamping seat 632 can move closer to or further away from the first clamping seat 631 from the side, thereby clamping or releasing the upsetting die 62. The second clamping seat 632 is provided with a clamping drive assembly 633, which is fixedly mounted on the bracket 61. In this embodiment, the clamping drive assembly 633 is a hydraulic cylinder. The pushing mechanism 64 is coaxially arranged with the rod mounting hole 621, and the output end of the pushing mechanism 64 can reciprocate along the axial direction of the rod mounting hole 621, applying an axial force to the rod 8 toward the stamping mechanism 65. The stamping mechanism 65 is coaxially arranged with the rod mounting hole 621, and the stamping mechanism 65 can reciprocate along the axial direction of the rod mounting hole 621, applying an axial force to the rod 8 in the direction of the pushing mechanism 64. Under the dual pressure of the pushing mechanism 64 and the stamping mechanism 65, the end of the rod 8 can undergo plastic deformation and form a preset shape inside the upsetting die 62.

[0084] Figure 14 A schematic diagram of the upsetting die 62 and clamping mechanism 63 provided in an embodiment of the present invention is shown. Please refer to [link / reference]. Figure 14 The upsetting die 62, facing the stamping mechanism 65, has a forming cavity 622 that communicates with and is coaxially arranged with the rod mounting hole 621. In this embodiment, the forming cavity 622 has a cylindrical shape, so that the final rod 8, after plastic deformation, has a circular plate shape. The overall shape of the upsetting die 62 is cylindrical, but it is not limited to this. The first clamping seat 631 and the second clamping seat 632 are provided with a first mounting groove 6311 and a second mounting groove 6321 that are adapted to the shape of the upsetting die 62. The upsetting die 62 is fixedly installed in the first mounting groove 6311. In addition, as Figure 13 As shown, the first clamping seat 631 and the second clamping seat 632 are also provided with a first rod positioning groove 6312 and a second rod positioning groove 6322 coaxial with the rod mounting hole 621. After the first clamping seat 631 and the second clamping seat 632 approach each other, the rod 8 is clamped in the first rod positioning groove 6312 and the second rod positioning groove 6322, which prevents the rod 8 from moving and provides a good positioning effect for the rod 8, preventing the rod 8 from deflecting when it is subsequently compressed.

[0085] like Figure 13As shown, the push mechanism 64 includes a push rod 641 and a push drive assembly 642 that drives the push rod 641 to move axially. The push rod 641 is coaxially arranged with the upsetting die 62. A support rod 643 extending perpendicular to the direction of the push rod 641 is provided on the push rod 641. A roller 644 is provided on the support rod 643, so that when the push rod 641 moves axially, the roller 644 will roll accordingly, providing support force to the push rod 641. The push drive assembly 642 includes a push cylinder 6421 and a push plate 6422. The output end of the push cylinder 6421 is fixedly mounted on the bracket 61, and the cylinder barrel of the push cylinder 6421 is fixedly mounted on the push plate 6422. The push rod 641 is fixedly connected to the push plate 6422. In addition, a guide rod 6423 is provided between the bracket 61 and the push plate 6422.

[0086] like Figure 13 As shown, the stamping mechanism 65 includes a stamping assembly 651, a stamping die 652, and a stamping die replacement assembly 653. The stamping assembly 651 is fixedly mounted on the bracket 61, the stamping die replacement assembly 653 is fixedly mounted on the output end of the stamping assembly 651, and the stamping die 652 is fixedly mounted on the output end of the stamping die replacement assembly 653. In this embodiment, there are three different stamping dies 652, which are used to form the anchoring part 81 of the rod 8 through three different stages. The stamping die replacement assembly 653 is used to connect the three stamping dies 652 to the end of the rod 8 in a specific sequence. It should be noted that in other embodiments, a greater number of stamping dies 652 can be provided, so that the end of the rod 8 is gradually formed into the anchoring part 81.

[0087] like Figure 13 As shown, the stamping assembly 651 includes a stamping cylinder 6511. The output end of the stamping cylinder 6511 is fixedly connected to the stamping slide 6512. The two sides of the stamping slide 6512 are slidably arranged on the slide rail 6513. The slide rail 6513 is fixedly arranged on the bracket 61. Thus, the stamping cylinder 6511 can drive the stamping slide 6512 to move along the axial direction of the rod 8.

[0088] like Figure 13As shown, in this embodiment, three different stamping dies 652 are arranged longitudinally at intervals. The stamping die changing assembly 653 includes a die mounting plate 6531 and a die driving assembly 6532 that drives the die mounting plate 6531 to move up and down. The die driving assembly 6532 includes a lifting motor 6533, a gear fixedly connected to the output end of the lifting motor 6533, and a rack meshing with the gear. The rack is arranged longitudinally, and the die mounting plate 6531 is fixedly connected to the rack. Thus, the lifting motor 6533 can drive the die mounting plate 6531 to move up and down through the gear and rack, thereby realizing the changing of different stamping dies 652. It should be noted that in other embodiments, the three different stamping dies 652 can be arranged in a horizontal direction or other directions.

[0089] Figure 15 A perspective view of three different stamping dies 652 provided in an embodiment of the present invention is shown. Please refer to... Figure 15 The first stamping die 6521 has an inwardly recessed first groove 65211 on its end face facing the upsetting die 62, the second stamping die 6522 has an inwardly recessed second groove 65221 on its end face facing the upsetting die 62, and the end face of the third stamping die 6523 facing the upsetting die 62 is a flat surface.

[0090] Figure 16 A cross-sectional view of the first stamping die 6521 and the second stamping die 6522 is shown. Please refer to... Figure 16 The depth of the first groove 65211 is greater than that of the second groove 65221, and the diameter of the bottom of the first groove 65211 is smaller than that of the bottom of the second groove 65221. The first groove 65211 has a smaller overall boundary size compared to the second groove 65221. In the initial stage, the first stamping die 6521 is used to make the end of the rod 8 undergo small plastic deformation first. After a certain period of time, the second stamping die 6522 is used to make the end of the rod 8 undergo small plastic deformation again. After a certain period of time, the third stamping die 6523 is used to make the end of the rod 8 finally form the anchoring part 81.

[0091] like Figure 12 As shown, a material discharge port 611 is provided below the bracket 61 for discharging the processed rod 8. Figure 17A schematic diagram of a discharge port 611 and a discharge device 7 is shown. The discharge device 7 is located below the discharge port 611. A discharge guide plate 612 is provided inside the discharge port 611. The lower part of the discharge guide plate 612 is inclined and faces the discharge device 7, so that when the rod 8 contacts the discharge guide plate 612, the rod 8 is guided to move towards the discharge device 7. The discharge device 7 includes a receiving box 71. An opening 711 is provided on one side of the receiving box 71 for the rod 8 to be discharged. A discharge push plate 72 is provided on the receiving box 71 opposite to the opening 711. A push cylinder 73 is provided on the discharge push plate 72. The push cylinder 73 controls the discharge push plate 72 to move towards or away from the opening 711, so that the rod 8 on the receiving box 71 is discharged from the opening 711.

[0092] The specific usage process of this device is as follows:

[0093] First, such as Figure 4 As shown, the rod 8 is placed on the storage support plate 111 with its axis extending left and right. The rod 8 rolls downwards at an incline along the upper surface of the storage support plate 111 to the lowest point; then, as... Figure 5 As shown, the first feeding drive assembly 123 drives the connecting seat 16 to move downwards, so that the top surface of the leftmost first movable step 122a is lower than or equal to the lowest point of the upper surface of the storage support plate 111, thereby moving the rod 8 to the top surface of the first movable step 122a; then the first feeding drive assembly 123 drives the connecting seat 16 to move upwards, so that the top surface of the leftmost first movable step 122a is higher than or equal to the first fixed step 121a, thereby moving the rod 8 to the top surface of the first fixed step 121a; after the continuous reciprocating motion of the first feeding drive assembly 123, the rod 8 finally moves upwards and enters the top surface of the third fixed step 121c, and Rolling to the right along the upper surface of the transverse connecting member 14 until it reaches the lowest point of the upper surface of the transverse connecting member 14, the second feeding drive assembly 124 drives the second movable step section 122b to move downward, so that the top surface of the second movable step section 122b is lower than or equal to the lowest point of the upper surface of the transverse connecting member 14, thereby moving the rod 8 to the top surface of the second movable step section 122b; the second feeding drive assembly 14 drives the second movable step section 122b to move upward, so that the top surface of the second movable step section 122b is higher than or equal to the top surface of the fourth fixed step section 121d, thereby moving the rod 8 to the top surface of the fourth fixed step section 121d, i.e., discharged from the discharge port 13;

[0094] Secondly, such as Figure 7 As shown, the rod 8 discharged from the outlet 13 enters a corresponding rod support 23 and is limited by the rod support groove 232. As the conveyor belt 21 rotates, the rod support 23 moves the rod 8 to the right. When the position of the rod support groove 232 corresponds to the position of the push rod 24, as shown... Figure 6 As shown, the push rod drive assembly 25 drives the push rod 24 to move to the left, so that the right end of the push rod 24 abuts against the left end of the rod 8, and drives the rod 8 to move to the right. Finally, the right end of the rod 8 abuts against the left end face of the alignment plate 26, realizing the axial positioning of the rod 8. Then the conveyor belt 21 continues to rotate, driving the rod 8 to move forward. When the rod 8 moves to the heating area formed by the heating plate 32 (see...), Figure 3 Heating plate 32 heats the end of the rod to a temperature that allows for plastic deformation; then, as... Figure 7 As shown, the conveyor belt 21 drives the rod support seat 23 to move to the right. When the rod support seat 23 moves to the right end of the conveyor belt 21, the rod support seat 23 begins to flip to the right, so that the rod 8 falls down onto the guide plate 28 and rolls down obliquely along the upper surface of the guide plate 28.

[0095] Again, such as Figure 8 As shown, the rod 8 falling from the guide plate 28 lands on the rod support roller 41 and is accommodated in the rod receiving groove 42, as... Figure 10 As shown, the second motor 44 drives the second sprocket assembly 43 to rotate, thereby causing the rod support roller 41 to rotate accordingly, which in turn drives the rod 8 to move axially until... Figure 8 In the middle, the left end of the rod 8 abuts against the right end of the limiting rod 45. At this time, the rod 8 is in the gripping position. Then, the second gripping drive assembly 53 adjusts the position of the gripper 51 along the axial direction of the rod 8, so that the gripper 51 is in the gripping position. Then, the first gripping drive assembly 52 drives the gripper 51 to move downward, so that the lower end of the gripper 51 abuts against the rod 8. Then, the first clamping arm 511 and the second clamping arm 512 clamp the rod 8 from both sides into the gripping space 514. After that, as Figure 10 As shown, the moving drive assembly 47 drives the moving plate 46 to move away from the guide plate 28, thereby causing the rod support roller 41 to leave the gripping station, connecting the gripping station with the upsetting station below, as shown. Figure 8 As shown, the first gripping drive assembly 52 drives the gripper 51 to continue moving downward, so that the rod 8 enters the upsetting station. Then, the second gripping drive assembly 53 adjusts the position of the gripper 51 along the axial direction of the rod 8, so that the heated end of the rod extends into the upsetting mold 62. After that, the first gripping drive assembly 52 and the second gripping drive assembly 53 are reset.

[0096] Then, as Figure 13As shown, the clamping drive assembly 633 drives the second clamping seat 632 to move toward the first clamping seat 631, so that the upsetting die 62 is clamped between the first clamping seat 631 and the second clamping seat 631. The lifting motor 6533 drives the die mounting plate 6531 to move downward, so that the first stamping die 6521 is aligned with the heated end of the rod 8. Then, the stamping cylinder 6511 drives the stamping slide 6512 to slide on the slide rail 6513, so that the first stamping die 6521 moves toward the end of the rod 8. At the same time, the top... The push cylinder 6421 drives the push plate 6422 to move to the left, causing the push rod 641 to move toward the right end of the rod 8 and abut against the right end of the rod 8. Thus, the two ends of the rod are subjected to axial pressure in opposite directions. Because the end of the rod 8 facing the first stamping die 6521 is heated, it undergoes plastic deformation, thereby filling the first groove 65211 of the first stamping die 6521. Afterwards, the stamping cylinder 6511 and the push cylinder 6421 reset, and the lifting motor 6533 drives the die mounting plate 6531 to move downwards, causing... The second stamping die 6522 aligns with the heated end of the rod 8. The stamping cylinder 6511 and the push cylinder 6421 actuate again, applying axial pressure to the rod 8. The left end of the rod 8 undergoes plastic deformation again, filling the second groove 65221 of the second stamping die 6522. Afterward, the stamping cylinder 6511 and the push cylinder 6421 reset, and the lifting motor 6533 drives the die mounting plate 6531 to move downward, so that the third stamping die 6523 aligns with the heated end of the rod 8. The stamping cylinder 6511 and the push cylinder 6421 then actuate again, applying axial pressure to the rod 8. The push cylinder 6421 actuates again, applying axial pressure to the rod 8. The left end of the rod 8 undergoes plastic deformation again, eventually filling the forming cavity 622 of the upsetting die 62 and forming an anchoring part 81 at the end of the rod 8. Then, the stamping cylinder 6511 resets and moves away from the left end of the rod 8. The clamping drive assembly 633 resets and releases the upsetting die 62. The push cylinder 6421 continues to drive the push rod 641 to move to the left, thereby pushing the rod 8 to move to the left until the rod 8 separates from the upsetting die 62 and falls downward into the discharge port 611.

[0097] Finally, the processed rod 8 falls onto the receiving box 71, and under the action of the pushing cylinder 73, the discharge push plate 72 pushes the rod 8 out of the opening 711.

[0098] The foregoing description of embodiments of the present invention, through which those skilled in the art are able to implement or use the present invention, will be readily apparent to those skilled in the art. Various modifications to these embodiments will be readily apparent to those skilled in the art. The general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novelty disclosed herein.

Claims

1. Equipment for machining anchoring portions at the ends of rods, characterized in that, include: The system includes a feeding device (1) with a discharge port (13) for discharging the rods (8) one by one from the discharge port (13); a conveying device (2) located at the discharge port (13) for receiving the rods (8) and moving them along the conveying direction; a heating device (3) located on the side of the conveying direction for heating the ends of the rods (8) and bringing them to a temperature at which plastic deformation can occur; a conveying device (4) located at the end of the conveying direction for receiving the rods (8) and moving them to the gripping station; a gripping device (5) located within the gripping station for gripping the rods (8) located within the gripping station and moving them into the upsetting station; and an upsetting device (6) located within the upsetting station for upsetting the heated ends of the rods (8) to form the anchoring part (81). The upsetting device (6) includes an upsetting die (62) having a forming cavity (622) that matches the shape of the anchoring part (81), a clamping mechanism (63) disposed on the outer periphery of the upsetting die (62) for fixing the upsetting die (62), a pushing mechanism (64) disposed at one end of the upsetting die (62) and coaxial with the forming cavity (622), and a stamping mechanism (65) disposed at the other end of the upsetting die (62) and coaxial with the forming cavity (622). The pushing mechanism (64) includes a pushing rod (641) that can move axially along the forming cavity (622), the pushing rod (641) being used to apply an axial force to the unheated end of the rod (8), and the stamping mechanism (65) includes a stamping die (652) that can move axially along the forming cavity (622), the stamping die (652) being used to apply an axial force to the heated end of the rod (8), causing the heated end of the rod (8) to undergo plastic deformation; The stamping die (652) includes a first stamping die (6521) with a first groove (65211) on its end face, a second stamping die (6522) with a second groove (65221) on its end face, and a third stamping die (6523) with a flat end face. The depth of the first groove (65211) is greater than the depth of the second groove (65221), and the diameter of the first groove (65211) is smaller than the diameter of the second groove (65221). The first stamping die (6521), the second stamping die (6522), and the third stamping die (6523) are used to upset the rod (8) in stages. The first stamping die (6521), the second stamping die (6522), and the third stamping die (6523) are mounted on a die mounting plate (6531). The die mounting plate (6531) is provided with a die driving assembly (6532) for driving the die mounting plate (6531) to move. The die driving assembly (6532) makes the first stamping die (6521), the second stamping die (6522), and the third stamping die (6523) coaxially arranged with the forming cavity (622) in sequence.

2. The equipment for machining anchoring portions at the ends of rods according to claim 1, characterized in that, The feeding device (1) includes: a storage box (11) for storing the rods (8) and a stepped feeding mechanism (12) disposed in the storage box (11) for moving the rods (8) one by one toward the discharge port (13) in a stepped manner. The stepped feeding mechanism (12) includes: a fixed step (121) and a movable step (122) disposed on the side of the fixed step (121) and capable of moving up and down under the drive of the feeding drive assembly. A height-limiting channel is provided on the side of the fixed step (121) closest to the discharge port (13). The height of the height-limiting channel is configured such that only one rod (8) is allowed to pass through in the height direction.

3. The equipment for machining anchoring portions at the ends of rods according to claim 1, characterized in that, The conveying device (2) includes a conveyor belt (21) and a rotary drive mechanism (22) for driving the conveyor belt (21) to rotate. The conveying direction is defined by the rotation direction of the conveyor belt (21). The surface of the conveyor belt (21) is provided with a plurality of rod support seats (23). The rod support seats (23) have rod inlets and outlets (231) for rods (8) to enter and exit, and rod support grooves (232) connected to the rod inlets and outlets (231) for accommodating the rods (8). The conveying device (2) also includes a push rod (24) arranged in the direction opposite to the heating device (3). A push rod drive assembly (25) for driving the push rod (24) to move along a direction perpendicular to the conveying direction is connected to the push rod (24). An alignment plate (26) for aligning the end of the rod (8) is arranged in the direction opposite to the push rod (24).

4. The equipment for machining anchoring portions at the ends of rods according to claim 1, characterized in that, The heating device (3) includes an induction heating furnace (31) and at least two heating plates (32) serving as the output end of the induction heating furnace (31). A heating area is formed between the at least two heating plates (32), and one side of the conveying device (2) passes through the heating area.

5. The equipment for machining anchoring portions at the ends of rods according to claim 1, characterized in that, The conveying device (4) includes a plurality of rod support rollers (41) arranged in a straight line. A rod receiving groove (42) for accommodating the rod (8) is formed above the rod support rollers (41). The rod support rollers (41) can rotate, thereby driving the rod (8) to move axially. A limiting rod (45) is provided above the rod support rollers (41). The limiting rod (45) is used to abut against the rod (8) after axial movement.

6. The equipment for machining anchoring portions at the ends of rods according to claim 1, characterized in that, The conveying device (4) can enter or leave the gripping station. When the conveying device (4) is located at the gripping station, the conveying device (4) can receive the rod (8) from the conveying device (2). When the conveying device (4) leaves the gripping station, the gripping station is connected to the upsetting station below. The gripping device (5) can move downward to allow the rod (8) to enter the upsetting station.

7. The equipment for machining anchoring portions at the ends of rods according to claim 6, characterized in that, The conveying device (4) includes a plurality of rod support rollers (41) arranged in a straight line. A rod receiving groove (42) for accommodating the rod (8) is formed above the rod support rollers (41). The plurality of rod support rollers (41) are arranged on a moving plate (46). A moving drive assembly (47) is connected to the moving plate (46). The moving drive assembly (47) is configured to drive the moving plate (46) to move horizontally, so that the rod support rollers (41) enter or leave the gripping station.

8. The equipment for machining anchoring portions at the ends of rods according to claim 1, characterized in that, The gripping device (5) includes a gripper (51), a first gripping drive assembly (52) for driving the gripper (51) to move up and down, so that the rod (8) located in the gripping station enters the upsetting station, and a second gripping drive assembly (53) for driving the gripper (51) to move axially along the rod (8), so that the rod (8) located in the upsetting station is connected to the upsetting device (6). The gripper (51) includes a first clamping arm disposed opposite to the gripper. (511) and a second clamping arm (512), a gripping space (514) for gripping the rod (8) is formed between the first clamping arm (511) and the second clamping arm (512), a bending part (513) is provided in the gripping space (514), the bending part (513) causes the gripping space (514) to bend in the vertical direction, and the bending part (513) is used to provide support force to the rod (8) in the gripping space (514) from below.

9. A method for machining an anchoring portion at the end of a member, characterized in that, The apparatus for machining anchorage portions at the ends of rods according to any one of claims 1 to 8 comprises the following steps: The feeding device (1) discharges the rods (8) one by one from the discharge port (13). The conveying device (2) receives the rods (8) discharged from the outlet (13) and arranges the rods (8) individually. The rods (8) move along the conveying direction, and the ends of the rods (8) pass through the heating device (3) during the process. The heating device (3) heats the rods (8) to a temperature that allows them to undergo plastic deformation. The rod (8) enters the conveying device (4) and is moved by the conveying device (4) to the gripping station. The gripping device (5) grips the rod (8) located in the gripping station and moves the rod (8) into the upsetting station. The upsetting device (6) upsets the heated end of the rod (8) and forms the anchoring part (81).

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