Multi-anvil radial forging equipment

Abstract

The utility model discloses multi-anvil radial forging equipment which comprises anvils and a forging press, the forging press comprises a machine frame, an upper cross beam and a movable cross beam, a main oil cylinder is fixed on the upper cross beam, a piston rod of the main oil cylinder is connected with the movable cross beam, and a pressing head is arranged on the lower portion of the middle of the movable cross beam. The anvil comprises an upper anvil block, a lower anvil block, a left anvil block, a right anvil block and four hammerheads, each of the upper anvil block and the lower anvil block is provided with a mounting part located in the middle and inclined planes symmetrically arranged on the left side and the right side, a left mounting opening is formed between the inclined planes on the left side, a right mounting opening is formed between the inclined planes on the right side, and inclined sliding grooves are formed in the front sides and the rear sides of the inclined planes. The left anvil block and the right anvil block are provided with bevel edges extending into the corresponding sliding grooves, the four hammer heads are fixed to the upper anvil block, the lower anvil block, the left anvil block and the right anvil block respectively, and the pressing head is provided with a head hooking device. In the ascending process of the pressure head, the hook head device can drive the upper anvil block to quickly ascend.

Description

Technical Field

[0001] The utility model relates to the technical field of forging anvils, in particular to a multi-anvil radial forging device. Background Art

[0002] Forging is to use the hammer head or anvil of the forging tool to apply pressure to the forging to cause it to undergo plastic deformation, thereby obtaining a product of the desired shape and size. The existing anvil has four hammer heads, upper, lower, left and right, and the hammer heads are opposite to each other in pairs, and the line connecting the two opposite hammer heads is perpendicular to the line connecting the other two opposite hammer heads. When in use, the forging is placed on the lower hammer head among the four hammer heads, and the opposite movement of the above-mentioned paired hammer heads forms the effect of the four hammer heads hitting the forging at the same time. Afterwards, the opposite movement of the paired hammer heads causes the upper, left and right three hammer heads to simultaneously detach from the forging and return to their initial positions, so as to leave the forging a certain distance and reserve potential energy for the next strike. However, the existing anvil will be reset after operation by a spring arranged between the upper anvil and the lower anvil. However, the use of a spring requires adding multiple processes to the processing of the anvil, and the assembly of the spring is also relatively cumbersome and inconvenient. Utility Model Content

[0003] The utility model provides a multi-anvil radial forging device. The structure enables an upper anvil seat to be carried upward without the need for spring driving.

[0004] The purpose of the utility model can be achieved through the following technical solutions:

[0005] A multi-anvil radial forging device, including an anvil for hammering forgings and a forging press for driving the anvil, the forging press including a frame, an upper crossbeam and a movable crossbeam installed on the frame from top to bottom in sequence, a main oil cylinder is fixed on the upper crossbeam, a piston rod of the main oil cylinder is connected to the movable crossbeam, a pressure head is provided at the middle lower part of the movable crossbeam, the anvil includes an upper anvil seat, a lower anvil seat, a left anvil seat, a right anvil seat and four hammer heads, the upper anvil seat and the lower anvil seat are symmetrically arranged at the top and bottom, the upper anvil seat and the lower anvil seat both have a mounting portion located in the middle and inclined surfaces symmetrically arranged on the left and right sides, the upper anvil seat and the lower anvil seat A left mounting opening capable of accommodating a left anvil is formed between the inclined surfaces on the left side of the anvil, and a right mounting opening capable of accommodating a right anvil is formed between the inclined surfaces on the right sides of the upper anvil and the lower anvil. Inclined slide grooves are provided on the front and rear sides of the inclined surfaces, and the left anvil and the right anvil are provided with beveled edges extending into the corresponding slide grooves. An accommodating cavity for accommodating forgings is formed between the upper anvil, the lower anvil, the left anvil and the right anvil. Four hammer heads are all arranged toward the center of the accommodating cavity and the ends are respectively fixed on the upper anvil, the lower anvil, the left anvil and the right anvil. A hook device is provided on the pressure head, which can drive the upper anvil to rise during the rising process of the pressure head.

[0006] By adopting the above technical solution, since the hook head device can carry the upper anvil upward quickly, the upper anvil performs linear reciprocating motion in the vertical direction, driving the left anvil and the right anvil to perform linear reciprocating motion in the horizontal direction, so that the opposite movement of all the hammer heads forms an effect of four hammer heads hammering the four surfaces of the forging at the same time; the opposite movement of all the hammer heads causes the upper, left and right hammer heads to detach from the forging at the same time, thereby storing potential energy for the next strike.

[0007] As a further solution of the utility model: the number of the hook head devices is two, the pressure head is provided with two through first grooves, the positions corresponding to the first grooves on the movable beam are set in the interconnected third grooves, the two hook head devices are respectively installed in the corresponding first grooves, each of the hook head devices includes a shell, a pull rod arranged in the shell and a rotating mechanism for driving the pull rod to rotate, the shell is located in the third groove, the lower end of the pull rod extends out of the shell and extends downward into the corresponding first groove, the pull rod is rotatably connected to the shell through a bearing, the lower end of the pull rod has a T-shaped head, and the top surface of the upper anvil is provided with a socket matching the corresponding pull rod.

[0008] As a further solution of the utility model: the rotating mechanism includes a gear, a transmission rod and a hydraulic cylinder, the gear is located in the shell and is fixedly connected to the upper end of the pull rod, the shell has a transversely through-going mounting hole, the transmission rod is arranged in the mounting hole and can move laterally, the transmission rod has a rack portion meshing with the gear, and the hydraulic cylinder is fixed on the movable crossbeam and connected to one end of the transmission rod.

[0009] As a further solution of the utility model: the socket comprises a hollow cylindrical socket body with upper and lower ends open and a cover plate connected to the upper open end, and the cover plate is provided with a through hole for the T-shaped head of the pull rod to pass through.

[0010] As a further solution of the utility model: the top surface of the upper anvil is provided with a plurality of first key slots, the number of the first key slots is four, and they are symmetrically arranged in a cross shape, each first key slot is provided with a pressure pad, and the position corresponding to the first key slot on the bottom surface of the pressure head is provided with a second key slot that can accommodate the pressure pad, and the top surface of the pressure pad is higher than the top surface of the socket. The above technical solution can effectively prevent the socket from being damaged when the pressure head impacts downward.

[0011] As a further solution of the utility model: wear-resistant plates are provided between the contact surfaces of the upper anvil and the left anvil, between the contact surfaces of the upper anvil and the right anvil, between the contact surfaces of the lower anvil and the left anvil, and between the contact surfaces of the lower anvil and the right anvil. The use of wear-resistant plates can reduce replacement costs and maintenance costs.

[0012] As a further solution of the utility model: the wear-resistant plate is made of high molecular polymer material. The high molecular polymer material has good chemical resistance and is not easily corroded by chemicals such as acid, alkali, and oil. It also has good temperature resistance, pressure resistance, and compression resilience.

[0013] As a further solution of the utility model: the left installation opening and the right installation opening are both of figure eight structure, with the large opening side facing inwards and the small opening side facing outwards.

[0014] As a further solution of the utility model: guide plates are fixed to the front and rear sides of the inclined surface respectively, and the guide plates have inwardly turned edges and form the sliding grooves with the corresponding inclined surfaces.

[0015] As a further solution of the utility model: it also includes a traction device, which includes a track arranged under the frame, and a traction cylinder arranged in front of the track to drive the anvil to slide on the track, a slide seat is provided at the bottom of the anvil, and the slide seat is arranged on the guide rail. The traction cylinder has a piston cylinder horizontally located above the track, and a hook head that can be connected to the anvil is fixed on the end of the piston rod of the traction cylinder.

[0016] To sum up, in the utility model, a hook device is provided on the pressure head, which can drive the upper anvil to rise rapidly during the rising process of the pressure head, so that the upper, left and right hammer heads of the anvil can be separated from the forging at a distance at the same time, and potential energy is reserved for the next strike, thereby ensuring the forging accuracy and quality of the forging. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings.

[0018] Figure 1 It is a structural schematic diagram of a multi-anvil radial forging device of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the forging press of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the pressure head of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the anvil of the utility model;

[0022] Figure 5 It is a structural schematic diagram of the guide plate of the utility model;

[0023] Figure 6 It is a structural schematic diagram of the hook device of the utility model;

[0024] Figure 7 It is a structural schematic diagram of the socket of the utility model;

[0025] Figure 8 It is a schematic diagram of another viewing angle of the socket of the utility model. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1 As shown, the utility model is a multi-anvil radial forging device, comprising an anvil 10 for hammering forgings, a forging press 20 for driving the anvil to work, and a traction device 30 for traction of the anvil to move.

[0028] Combination Figure 2 As shown, the forging press 20 includes a frame 21, an upper crossbeam 22 and a movable crossbeam 23 which are sequentially installed on the frame 21 from top to bottom. In this embodiment, the frame 21 is composed of two columns 211 arranged at intervals. A main oil cylinder 25 is fixed on the upper crossbeam 22. The main oil cylinder 25 has a piston rod extending downward. The middle part of the movable crossbeam 23 is connected to the piston rod of the main oil cylinder 25, and the two ends are respectively slidably connected to the corresponding columns 211. A pressure head 26 is provided at the middle lower part of the movable crossbeam 23.

[0029] Combination Figure 4 As shown, the anvil 10 includes an upper anvil 11 , a lower anvil 12 , a left anvil 13 , a right anvil 14 and four hammer heads 15 .

[0030] like Figure 4 As shown, the upper anvil 11 and the lower anvil 12 are symmetrically arranged in the upper and lower parts. Both the upper anvil 11 and the lower anvil 12 include a mounting portion 16 in the middle and inclined surfaces 17 symmetrically arranged on the left and right sides. A left mounting opening for accommodating the left anvil 13 is formed between the inclined surface 17 on the left side of the upper anvil 11 and the inclined surface 17 on the left side of the lower anvil 12. A right mounting opening for accommodating the right anvil 13 is formed between the inclined surface 17 on the right side of the upper anvil 11 and the inclined surface 17 on the right side of the lower anvil 12. Both the left mounting opening and the right mounting opening are of an eight-shaped structure, with the large opening side facing inward and the small opening side facing outward.

[0031] like Figure 4 and Figure 5As shown, in this embodiment, the left anvil 13 and the right anvil 14 have the same structure. The shape of the left anvil 13 is an isosceles triangle. Guide plates 18 are fixed on the front and rear side surfaces of the inclined surface 17, respectively. The guide plate 18 has an inward flange 181 and forms a slide groove 101 between the corresponding inclined surface 17. The upper and lower edges of the front and rear side surfaces of the left anvil 13 and the right anvil 14 are provided with bevels 102 that extend into the corresponding slide grooves 101, respectively. The bevels 102 inserted into the corresponding slide grooves can not only limit the left and right positions of the left anvil and the right anvil, but also limit the left and right anvils up and down.

[0032] like Figure 2 , Figure 3 and Figure 6 As shown, the pressure head 26 is provided with a hook device 40 that can drive the upper anvil 11 to rise during the pressure head rising process. There are two hook devices 40. The pressure head 26 is provided with a through first groove 261. The movable crossbeam 23 is provided with a third groove 231 that is connected to the first groove 261. The two hook devices are respectively installed in the corresponding first groove 261. The use of the hook device can drive the upper anvil to rise quickly.

[0033] like Figure 4 , Figure 6 , Figure 7 and Figure 8 As shown, each hook device 40 includes a housing 41, a pull rod 42 disposed in the housing 41, and a rotating mechanism for driving the pull rod 42 to rotate. The housing 41 is located in the corresponding third slot 231. The lower end of the pull rod 42 extends out of the housing 41 and then extends downward to the corresponding first slot 261. The pull rod 42 is rotatably connected to the housing 41 through a bearing. The lower end of the pull rod 42 has a T-shaped head 421. A socket 50 that matches the corresponding pull rod 42 is provided on the top surface of the upper anvil 11.

[0034] The rotating mechanism is mainly composed of a gear (not shown in the figure), a transmission rod 44 and a hydraulic cylinder (not shown in the figure). The gear is located in the housing 42 and is fixedly connected to the upper end of the pull rod 42. The housing 41 has a mounting hole 411 that runs through horizontally. The transmission rod 44 is arranged in the mounting hole 411 and can move horizontally. The transmission rod 44 has a rack portion (not shown in the figure) that meshes with the gear and is located in the housing. The hydraulic cylinder is fixed on the movable crossbeam 23 and connected to one end of the transmission rod.

[0035] like Figure 7 and Figure 8 As shown, the socket 50 comprises a hollow cylindrical socket body 501 with upper and lower ends open and a cover plate 502 connected to the upper end opening. The cover plate 502 is provided with a through hole 503 for the T-shaped head 421 of the pull rod 42 to pass through.

[0036] During operation, the T-shaped head 421 of the pull rod 42 is parallel to the through hole 503 of the cover plate 502 at the beginning. The main oil cylinder 25 is started, driving the piston rod of the main oil cylinder 25 downward, driving the pressure head 26 downward; the T-shaped head 421 of the pull rod 42 passes through the through hole 503 of the cover plate 502 and is inserted into the socket body 501. Then, the hydraulic cylinder is started, driving the piston rod of the hydraulic cylinder to extend, driving the transmission rod 44 to move linearly, driving the gear to rotate, and synchronously driving the pull rod 42 to rotate. After that, the T-shaped head 421 of the pull rod 42 is perpendicular to the through hole 503, so that the T-shaped head 421 of the pull rod 42 is stuck in the socket 50, thereby being able to drive the upper anvil 11 to move upward.

[0037] like Figure 3 and Figure 4 As shown, a plurality of first key grooves 51 are provided on the top surface of the upper anvil 11. There are four first key grooves 51, which are symmetrically arranged in a cross shape. A pressure pad 52 is provided in each first key groove 51. A second key groove 53 for accommodating the pressure pad 52 is provided on the bottom surface of the pressure head 26 at a position corresponding to the first key groove 51. Among them, the top surface of the pressure pad 52 is higher than the top surface of the socket 50. The above technical solution is adopted to prevent the socket 50 from being crushed when the pressure head 26 impacts downward.

[0038] The top surface of the upper anvil 11 is also provided with auxiliary positioning blocks 54. In this embodiment, the auxiliary positioning blocks 54 have the same structure as the socket 50. A second groove 262 for accommodating the auxiliary positioning blocks is provided on the pressure head 26 at a position corresponding to the auxiliary positioning blocks 54.

[0039] It should be noted here that the movement of the left anvil 13 and the right anvil 14 is driven by the upper anvil 11. The power of the upper anvil 11 is transmitted to the left anvil 13 and the right anvil 14 through the contact slopes with the left anvil 13 and the right anvil 14. In this way, when the upper anvil 11 performs a linear reciprocating motion in the vertical direction, it drives the left anvil 13 and the right anvil 14 to perform a linear reciprocating motion in the horizontal direction.

[0040] like Figure 4 As shown, a receiving cavity for receiving the forging is formed between the upper anvil 11, the lower anvil 12, the left anvil 13 and the right anvil 14. Among them, four hammer heads 15 are all arranged toward the center of the receiving cavity, and the ends are fixed on the mounting portion 16 of the upper anvil 11, the mounting portion 16 of the lower anvil 12, the left anvil 13 and the right anvil 14 respectively.

[0041] During operation, the upper anvil 11 performs linear reciprocating motion in the vertical direction. At the same time, the upper anvil 11 moves toward or away from the lower anvil 12, that is, the upper hammer 15a moves toward or away from the lower hammer 15b. Similarly, during operation, the left anvil 13 and the right anvil 14 perform linear reciprocating motion in the horizontal direction. At the same time, the left hammer 15c and the right hammer 15d move toward or away from each other. The above-mentioned movement of the paired hammers 15 toward each other creates the effect of four hammers hitting the four faces of the forging at the same time; the movement of the paired hammers 15 away from each other causes the upper, left, and right hammers to simultaneously detach from the forging so as to leave the forging a certain distance to reserve potential energy for the next strike.

[0042] like Figure 4 As shown, wear-resistant plates 19 are provided between the contact surfaces of the upper anvil 11 and the left anvil 13, between the contact surfaces of the upper anvil 11 and the right anvil 14, between the contact surfaces of the lower anvil 12 and the left anvil 13, and between the contact surfaces of the lower anvil 12 and the right anvil 14. The use of the wear-resistant plates 19 can reduce the cost of replacement and the maintenance cost. In this embodiment, the wear-resistant plates 19 are made of high molecular polymer materials. The use of high molecular polymer materials has good chemical resistance and is not easily corroded by chemicals such as acid, alkali, and oil. It also has good temperature resistance, pressure resistance, and compression resilience.

[0043] like Figure 4 As shown, chip removal grooves 121 are provided on both sides of the mounting portion 16 of the lower anvil 12. When the hammer strikes the forging, the residue on the surface of the forging will fall off and accumulate near the lower anvil 12 and the lower hammer 15b. The accumulation of residue on the lower anvil 12 will have an adverse effect on the anvil 10 and should be discharged as promptly as possible. The chip removal groove 121 serves to discharge the residue. In order to achieve this purpose, the chip removal groove 221 is configured as a long and narrow groove, which extends from the vicinity of the lower hammer 15b to the lower outer side of the lower anvil 12, so that the residue can slide off the lower anvil 12 along the chip removal groove 121 under the action of gravity. The chip removal groove 121 forms a slide-like effect for the residue.

[0044] In addition, if Figure 1 As shown, it also includes a traction device 60. The traction device 60 includes a track 61 passing through the bottom between the two columns 211 and a traction cylinder arranged in front of the track 61 to drive the anvil to slide on the track. A slide 122 is provided at the bottom of the lower anvil 12. The slide 122 is arranged on the track 61. The traction cylinder has a piston rod 62 horizontally located above the track 61. A hook head that can be connected to the slide 122 is fixed to the end of the piston rod 62 of the traction cylinder. Of course, buckles or locks can also be used. In actual production, multiple anvils of different specifications can be placed end to end on the track 61 as needed.

[0045] During operation, the anvil is placed on the track 61, the forging is placed on the lower hammer 15b of the lower anvil, and the hook on the end of the piston rod 62 of the traction cylinder is connected to the slide. After that, the traction cylinder drives the anvil to move below the pressure head 26. Subsequently, the main cylinder 25 is started, driving the piston rod of the main cylinder 25 downward, driving the pressure head 26 downward, and driving the upper anvil 11 downward, thereby driving the upper hammer 15a to move toward the lower hammer 15b, and synchronously driving the left anvil 13 and the right anvil 14 to move toward each other in the horizontal direction. At the same time, the left hammer 15c and the right hammer 15d move toward each other. In this way, the opposite movement of the paired hammers 26 forms an effect of four hammers hitting the forging at the same time.

[0046] In the process of driving the upper anvil downward, the T-shaped head 421 of the pull rod 42 passes through the through hole 503 of the cover plate 502 and is inserted into the socket body 501. Subsequently, the hydraulic cylinder is started, the piston rod of the hydraulic cylinder is extended, and the transmission rod 44 is driven to move linearly, driving the gear to rotate, and synchronously driving the pull rod 42 to rotate, and then the T-shaped head 421 of the pull rod 42 is stuck in the socket 50. After the current hammering is completed, the piston rod of the main oil cylinder 25 moves upward, driving the pressure head 26 upward, and synchronously driving the pull rod 42 upward. At the same time, the T-shaped head 421 of the pull rod 42 pulls the cover plate 502 of the socket 50 upward, thereby driving the upper anvil 11 upward to the initial position, and then the piston rod of the main oil cylinder stops moving upward. Subsequently, the main oil cylinder 25 drives the piston rod downward, drives the pressure head 26 downward, and drives the upper anvil 11 downward to continue hammering the forging, and then continues to reciprocate.

[0047] When the anvil needs to be replaced, the piston rod of the main oil cylinder moves upward, driving the upper anvil upward. When it reaches the initial position of the upper anvil, the piston rod of the main oil cylinder stops. Then, the piston rod of the hydraulic cylinder returns, driving the transmission rod 44 to return. The transmission rod 44 drives the gear to start rotating in the opposite direction, and after synchronously driving the pull rod to rotate in the opposite direction, the T-head of the pull rod is parallel to the through hole 503 of the cover plate 502. Then, the main oil cylinder 25 continues to drive the piston rod upward, driving the pressure head 26 to continue to move upward, and the T-head of the pull rod is separated from the socket 50. Then, the piston rod of the main oil cylinder 25 returns to the initial position, and the traction cylinder drives the next anvil to move to the bottom of the pressure head 26, and continues to move repeatedly.

[0048] To sum up, in the utility model, a hook device is provided on the pressure head, which can drive the upper anvil to rise rapidly during the rising process of the pressure head, so that the upper, left and right hammer heads of the anvil can be separated from the forging at a distance at the same time, and potential energy is reserved for the next strike, thereby ensuring the forging accuracy and quality of the forging.

[0049] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A multi-anvil radial forging device, comprising an anvil for hammering forgings and a forging press for driving the anvil, the forging press comprising a frame, an upper crossbeam and a movable crossbeam which are sequentially installed on the frame from top to bottom, a main oil cylinder is fixed on the upper crossbeam, a piston rod of the main oil cylinder is connected to the movable crossbeam, a pressure head is provided at the middle lower part of the movable crossbeam, characterized in that: The anvil tool comprises an upper anvil, a lower anvil, a left anvil, a right anvil and four hammer heads, the upper and lower anvils are symmetrically arranged at the top and the bottom, and the upper and lower anvils both have a mounting portion located in the middle and inclined surfaces symmetrically arranged on the left and right sides, a left mounting opening capable of accommodating the left anvil is formed between the inclined surfaces on the left side of the upper anvil and the lower anvil, a right mounting opening capable of accommodating the right anvil is formed between the inclined surfaces on the right side of the upper anvil and the lower anvil, inclined slide grooves are provided on the front and rear sides of the inclined surfaces, the left anvil and the right anvil are provided with oblique edges extending into the corresponding slide grooves, a accommodating cavity for accommodating forgings is formed between the upper anvil, the lower anvil, the left anvil and the right anvil, the four hammer heads are all arranged toward the center of the accommodating cavity and the ends are respectively fixed on the upper anvil, the lower anvil, the left anvil and the right anvil, and the pressure head is provided with a hook device capable of driving the upper anvil to rise during the rising process of the pressure head.

2. The multi-anvil radial forging apparatus according to claim 1, characterized in that: There are two hook head devices, and two through first grooves are arranged on the pressure head. The positions corresponding to the first grooves on the movable crossbeam are arranged in the interconnected third grooves. The two hook head devices are respectively installed in the corresponding first grooves. Each of the hook head devices includes a shell, a pull rod arranged in the shell, and a rotating mechanism for driving the pull rod to rotate. The shell is located in the third groove, and the lower end of the pull rod extends out of the shell and extends downward into the corresponding first groove. The pull rod is rotatably connected to the shell through a bearing, and the lower end of the pull rod has a T-shaped head. A socket matching the corresponding pull rod is provided on the top surface of the upper anvil.

3. The multi-anvil radial forging apparatus according to claim 2, characterized in that: The rotating mechanism includes a gear, a transmission rod and a hydraulic cylinder. The gear is located in a housing and fixedly connected to the upper end of the pull rod. The housing has a transversely penetrating mounting hole. The transmission rod is arranged in the mounting hole and can move laterally. The transmission rod has a rack portion meshing with the gear. The hydraulic cylinder is fixed on a movable crossbeam and connected to one end of the transmission rod.

4. The multi-anvil radial forging apparatus according to claim 3, characterized in that: The socket comprises a hollow columnar socket body with upper and lower ends open and a cover plate connected to the upper open end. The cover plate is provided with a through hole for the T-shaped head of the pull rod to pass through.

5. The multi-anvil radial forging apparatus according to claim 4, characterized in that: The top surface of the upper anvil is provided with multiple first key grooves, and the number of the first key grooves is four, which are symmetrically arranged in a cross shape. A pressure pad is provided in each first key groove, and a second key groove that can accommodate the pressure pad is provided at the position corresponding to the first key groove on the bottom surface of the pressure head, and the top surface of the pressure pad is higher than the top surface of the socket.

6. The multi-anvil radial forging apparatus according to claim 1, characterized in that: Wear-resistant plates are provided between the contact surfaces of the upper anvil and the left anvil, between the contact surfaces of the upper anvil and the right anvil, between the contact surfaces of the lower anvil and the left anvil, and between the contact surfaces of the lower anvil and the right anvil.

7. The multi-anvil radial forging apparatus according to claim 6, characterized in that: The wear-resistant plate is made of high molecular polymer material.

8. The multi-anvil radial forging apparatus according to claim 1, characterized in that: The left installation opening and the right installation opening are both in an eight-shaped structure, with the large opening side facing inward and the small opening side facing outward.

9. The multi-anvil radial forging apparatus according to claim 8, characterized in that: A guide plate is provided at the front and rear sides of the inclined surface respectively. The guide plate has an inwardly turned edge and forms the slide groove with the corresponding inclined surface.

10. The multi-anvil radial forging apparatus according to claim 1, characterized in that: It also includes a traction device, which includes a track arranged under the frame, and a traction cylinder arranged in front of the track to drive the anvil to slide on the track. A sliding seat is provided at the bottom of the anvil, and the sliding seat is arranged on the guide rail. The traction cylinder has a piston cylinder horizontally located above the track, and a hook head that can be connected to the anvil is fixed on the end of the piston rod of the traction cylinder.

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