Cross arm rod forging frame tool

Abstract

The invention discloses a cross arm rod forging frame tool, and belongs to the technical field of cross arm rods, the cross arm rod forging frame tool comprises a lower die, an upper die is arranged on the upper side of the lower die, a telescopic rod is fixedly installed on the upper end face of the upper die, side plates are fixedly installed on the left end face and the right end face of the lower die, and a workpiece is arranged above the lower die; a stabilizing mechanism is arranged in the lower die and comprises first limiting pieces arranged on the two sides of the lower die, each first limiting piece comprises a first fixing shaft fixedly installed on the front end face of the upper die, a vertical rod is fixedly installed at the front end of each first fixing shaft, and an ejector block is fixedly installed at the lower end of each vertical rod. A second fixing shaft is fixedly installed at the front end of the transmission rod, a connecting rod is rotationally connected between the second fixing shaft and the top block, and a sliding groove is formed in the upper end face of the side plate. According to the scheme, the workpiece is stabilized during forging by arranging the stabilizing mechanism, and the fixing effect on the workpiece is enhanced by adopting the multi-direction limiting assembly.

Description

Technical Field

[0001] The invention relates to the technical field of cross arm rods, and more particularly to a cross arm rod forging tool. Background Art

[0002] The function of the crossarm: the angle iron fixed horizontally on the top of the pole, with a porcelain bottle on it, is used to support the overhead wires; the crossarm is an important component of the pole tower, and its function is to install insulators and hardware to support the conductors and lightning conductors, and to keep them at a certain safe distance as required; forging is required during the manufacturing process of the crossarm, and thus a forging mold is required.

[0003] A Chinese patent with the authorization publication number CN221603167U discloses a crossarm forging die. When the forging die moves downward, it drives the movable column to move downward along the inside of the fixed cylinder and squeezes the reset spring at the same time. When the lower forging die moves downward, the two trimming knives remain stationary, so that the crossarm can be forged and the redundant edges on both sides of the crossarm can be cut off by the trimming knives at the same time; this allows the forging die to directly cut off the scraps on both sides of the crossarm during use, thereby greatly improving work efficiency.

[0004] Although this crossarm forging die can directly cut off the scraps on both sides of the crossarm, the stability of the workpiece is crucial during the forging process of the crossarm. If the workpiece is displaced or shaken, it will cause forging defects and increase the defective rate. This instability may be caused by external forces or improper equipment adjustment, which may cause various quality problems in the forged crossarm. Therefore, ensuring the stability of the workpiece during the forging process is a key concern in the production process. This not only affects the final quality of the product, but is also directly related to production efficiency and cost control. Keeping the workpiece stable is of great significance for reducing variables in production, ensuring process consistency and product reliability. Summary of the invention

[0005] In view of the problems existing in the prior art, the object of the present invention is to provide a cross arm forging jig, which can improve the stability of the cross arm during forging.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] A crossbar forging tool comprises a lower mold, an upper mold is provided on the upper side of the lower mold, a telescopic rod is fixedly installed on the upper end surface of the upper mold, and a side plate is fixedly installed on the left and right end surfaces of the lower mold, a workpiece is provided above the lower mold, and a stabilizing mechanism is provided inside the lower mold, and the stabilizing mechanism comprises a limiting member 1 arranged on both sides of the lower mold, the limiting member 1 comprises a fixed shaft 1 fixedly installed on the front end surface of the upper mold, a vertical rod is fixedly installed on the front end of the fixed shaft 1, a top block is fixedly installed on the lower end of the vertical rod, a transmission rod is provided below the side plate, a fixed shaft 2 is fixedly installed on the front end of the transmission rod, a connecting rod is rotatably connected between the fixed shaft 2 and the top block, a sliding groove is provided on the upper end surface of the side plate, a clamping rod is slidably connected inside the sliding groove, the lower end of the clamping rod is fixedly connected to the transmission rod, and the upper end of the clamping rod is arranged on both sides of the workpiece.

[0008] The stabilizing mechanism also includes an auxiliary component arranged inside the clamp rod, and the auxiliary component includes a sliding cavity arranged at the upper end of the clamp rod, the interior of the sliding cavity is slidably connected with a sliding rod, and a lower pressure plate is fixedly installed on the upper end of the sliding rod.

[0009] A spring is fixedly installed between the lower end of the sliding rod and the inner lower end surface of the sliding cavity. A limiting cavity is opened inside the clamping rod. A pull rope is slidably connected inside the limiting cavity. One end of the pull rope is fixedly connected to the sliding rod, and the other end of the pull rope extends to the interior of the sliding groove and is fixedly connected to the inner wall of the sliding groove.

[0010] The stabilizing mechanism also includes two limiting members arranged on the front and rear sides of the workpiece, the limiting member two includes a vertical rod having a wedge block one fixedly installed on the rear end face, a clamping plate is arranged inside the lower mold, and a wedge block two is fixedly installed on the front end face of the clamping plate, and the wedge block one and the wedge block two are arranged correspondingly.

[0011] Support frames are fixedly installed on both sides of the front end surface of the clamping plate, one end of the support frame is slidably connected to the lower mold, a limit plate is fixedly installed on the outer surface of the support frame, and a second spring is fixedly installed between the limit plate and the lower mold.

[0012] The stabilizing mechanism also includes a discharge piece arranged inside the lower mold, the discharge piece includes an outer surface of a fixed shaft 2 rotatably connected to a gear 1, and a front end surface of the lower mold is fixedly mounted with a rack, and the rack is meshed with the gear 1.

[0013] The front end surface of the connecting rod is rotatably connected to a rotating shaft, one side of the gear one is meshed with a gear two, the rotating shaft passes through the connecting rod and is fixedly connected to the gear two, a one-way bearing is arranged inside the gear two, and a cam is fixedly installed at the front end of the rotating shaft.

[0014] A sleeve is fixedly installed on the front end surface of the connecting rod, and a protrusion is provided on one side of the sleeve, and the protrusion is corresponding to the cam. A rod body is fixedly installed on one end of the protrusion, and a piston plate is slidably connected inside the sleeve. One end of the rod body extends to the inside of the sleeve and is fixedly connected to the piston plate, and a spring three is fixedly installed between the protrusion and the sleeve.

[0015] The outer surface of the sleeve is connected to an air inlet pipe, one end of the sleeve is connected to a connecting pipe, the interior of the lower mold is slidably connected to a top plate, the lower end surface of the top plate is fixedly installed with a top column, the interior of the lower mold is provided with a cavity, the top column is slidably connected to the cavity, and the connecting pipe is connected to the cavity.

[0016] The first limiting member, the auxiliary member and the second limiting member are each provided in two groups correspondingly and are symmetrically arranged.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] (1) This solution stabilizes the workpiece during forging by setting up a stabilizing mechanism, and adopts a multi-directional limit assembly to enhance the fixing effect of the workpiece;

[0019] (4) This solution provides a discharge piece so that the workpiece can be quickly separated from the lower die after forging, thereby improving the discharge efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 For the present invention Figure 1 The enlarged schematic diagram at A in the middle;

[0022] Figure 3 It is a cross-sectional view of the overall structure of the present invention;

[0023] Figure 4 For the present invention Figure 3 The enlarged schematic diagram of point B in the middle;

[0024] Figure 5 It is a cross-sectional view of the discharge member of the present invention;

[0025] Figure 6 For the present invention Figure 5 Enlarged schematic diagram at point C in the middle.

[0026] Description of the numbers in the figure:

[0027] 1. Lower mold; 2. Side plate; 3. Telescopic rod; 4. Upper mold; 5. Workpiece; 6. Fixed axis 1; 7. Vertical rod; 8. Ejector block; 9. Connecting rod; 10. Fixed axis 2; 11. Transmission rod; 12. Slide groove; 13. Clamping rod; 14. Sliding cavity; 15. Sliding rod; 16. Lower pressure plate; 17. Spring 1; 18. Limiting cavity; 19. Pull rope; 20. Wedge block 1; 21. Clamping plate; 22. Wedge block 2; 23. Support frame; 24. Limiting plate; 25. Spring 2; 26. Rack; 27. Gear 1; 28. Rotating shaft; 29. ​​Gear 2; 30. Cam; 31. Sleeve; 32. Bump; 33. Rod body; 34. Spring 3; 35. Connecting pipe; 36. Cavity; 37. Ejector plate; 38. Ejector column. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0029] See also Figures 1 to 6 A crossbar forging jig comprises a lower die 1, an upper die 4 is arranged on the upper side of the lower die 1, a telescopic rod 3 is fixedly installed on the upper end surface of the upper die 4, a side plate 2 is fixedly installed on the left and right end surfaces of the lower die 1, a workpiece 5 is arranged above the lower die 1, and a stabilizing mechanism is arranged inside the lower die 1, the stabilizing mechanism comprises a limiting member 1 arranged on both sides of the lower die 1, the limiting member 1 comprises a fixed shaft 1 6 fixedly installed on the front end surface of the upper die 4, a vertical rod 7 is fixedly installed on the front end of the fixed shaft 1 6, a top block 8 is fixedly installed on the lower end of the vertical rod 7, a transmission rod 11 is arranged below the side plate 2, a fixed shaft 2 10 is fixedly installed on the front end of the transmission rod 11, a connecting rod 9 is rotatably connected between the fixed shaft 2 10 and the top block 8, a slide groove 12 is opened on the upper end surface of the side plate 2, a clamping rod 13 is slidably connected inside the slide groove 12, the lower end of the clamping rod 13 is fixedly connected to the transmission rod 11, and the upper end of the clamping rod 13 is arranged on both sides of the workpiece 5.

[0030] The telescopic rod 3 is fixedly connected to the external support frame. When it is necessary to forge a cross arm, first, place the workpiece 5 on the lower mold 1, and then start the telescopic rod 3, so that the telescopic rod 3 drives the upper mold 4 to descend, and the upper mold 4 will drive the vertical rod 7 and the top block 8 on the vertical rod 7 to descend through the fixed shaft 1 6. The top block 8 is rotatably connected to the fixed shaft 2 10 on the transmission rod 11 through the connecting rod 9, and the clamping rod 13 on the transmission rod 11 is slidably connected to the slide groove 12. Therefore, when the top block 8 descends, under the action of the connecting rod 9 and the transmission rod 11, the clamping rod 13 will slide inside the slide groove 12, and the clamping rod 13 will slide within the slide groove 12 to prevent the clamping rod 13 from falling off the slide groove 12. The clamping rods 13 on both sides are synchronously displaced toward the workpiece 5 to preliminarily fix the workpiece 5.

[0031] The stabilizing mechanism further includes an auxiliary component arranged inside the clamp rod 13 , the auxiliary component includes a sliding cavity 14 arranged at the upper end of the clamp rod 13 , a sliding rod 15 is slidably connected inside the sliding cavity 14 , and a lower pressing plate 16 is fixedly installed on the upper end of the sliding rod 15 .

[0032] A spring 17 is fixedly installed between the lower end of the sliding rod 15 and the inner lower end surface of the sliding cavity 14. A limiting cavity 18 is opened inside the clamping rod 13. A pull rope 19 is slidably connected inside the limiting cavity 18. One end of the pull rope 19 is fixedly connected to the sliding rod 15, and the other end of the pull rope 19 extends to the interior of the sliding groove 12 and is fixedly connected to the inner wall of the sliding groove 12.

[0033] Secondly, when the clamping rod 13 moves toward the workpiece 5 inside the slide groove 12, since one end of the pull rope 19 is fixedly connected to the inner wall of the slide groove 12, the slide rod 15 at the other end of the pull rope 19 will descend inside the slide cavity 14 and squeeze the spring 17, and the lower pressure plate 16 at the other end of the slide rod 15 will simultaneously descend and fit tightly against the workpiece 5 to increase the limiting position. The spring 17 can make the slide rod 15 rise and return to its original position when the fixation is released.

[0034] The stabilizing mechanism also includes a limiting member 2 provided on the front and rear sides of the workpiece 5. The limiting member 2 includes a wedge block 20 fixedly installed on the rear end face of the vertical rod 7, a clamp plate 21 is provided inside the lower mold 1, and a wedge block 22 is fixedly installed on the front end face of the clamp plate 21. The wedge block 20 and the wedge block 22 are arranged correspondingly.

[0035] Support frames 23 are fixedly installed on both sides of the front end surface of the clamping plate 21. One end of the support frame 23 is slidably connected to the lower mold 1. A limit plate 24 is fixedly installed on the outer surface of the support frame 23. A spring 25 is fixedly installed between the limit plate 24 and the lower mold 1.

[0036] When the vertical rod 7 descends, the wedge block 20 will be carried down with it, and the wedge block 20 and the wedge block 22 on the clamp plate 21 will collide and slide with each other, so that the clamp plate 21 will be tightly attached to the workpiece 5. The two groups of clamp plates 21 limit the front and rear ends of the clamp plate 21 respectively, further increasing the limiting direction and improving the fixing effect. The setting of the support frame 23, the limiting plate 24 and the spring 25 supports the clamp plate 21, and the spring 25 can restore the clamp plate 21 to its original position when the limit is released.

[0037] The stabilizing mechanism also includes a discharge piece arranged inside the lower mold 1 , and the discharge piece includes a fixed shaft 10 whose outer surface is rotatably connected to a gear 1 27 , and a rack 26 is fixedly installed on the front end surface of the lower mold 1 , and the rack 26 is meshed with the gear 1 27 .

[0038] The front end surface of the connecting rod 9 is rotatably connected to a rotating shaft 28, one side of the gear 1 27 is meshed with a gear 2 29, the rotating shaft 28 passes through the connecting rod 9 and is fixedly connected to the gear 2 29, a one-way bearing is provided inside the gear 2 29, and a cam 30 is fixedly installed at the front end of the rotating shaft 28.

[0039] A sleeve 31 is fixedly installed on the front end face of the connecting rod 9, and a protrusion 32 is provided on one side of the sleeve 31. The protrusion 32 is arranged corresponding to the cam 30, and a rod body 33 is fixedly installed on one end of the protrusion 32. A piston plate is slidably connected inside the sleeve 31, and one end of the rod body 33 extends to the inside of the sleeve 31 and is fixedly connected to the piston plate. A spring 34 is fixedly installed between the protrusion 32 and the sleeve 31.

[0040] The outer surface of the sleeve 31 is connected to an air intake pipe, one end of the sleeve 31 is connected to a connecting pipe 35, a top plate 37 is slidably connected to the interior of the lower mold 1, a top column 38 is fixedly installed on the lower end surface of the top plate 37, a cavity 36 is opened inside the lower mold 1, the top column 38 is slidably connected to the cavity 36, and the connecting pipe 35 and the cavity 36 are connected to each other.

[0041] When the fixed shaft 210 is displaced, the gear 27 connected to the outer surface of the fixed shaft 210 rotates because it meshes with the rack 26, and the gear 27 will rotate, and the gear 27 will mesh with the gear 29 on the rotating shaft 28. However, when the upper mold 4 is pressed down for forging, the gear 29 will not drive the rotating shaft 28 to rotate due to the setting of the internal one-way bearing. When the upper mold 4 is forged and raised, it will drive the rotating shaft 28 to rotate under the action of the one-way bearing, and the rotating shaft 28 will drive the cam 30 to rotate. 30 will hit the protrusion 32 on the rod body 33, and with the cooperation of the spring three 34, the rod body 33 drives the piston plate to reciprocate inside the sleeve 31. When the piston plate moves to one side, the one-way valve inside the intake pipe will open to inhale air. When the piston plate moves to the other side, the one-way valve inside the connecting pipe 35 will open, and the gas inside the sleeve 31 will be discharged into the cavity 36 through the connecting pipe 35, thereby pushing the top column 38 and driving the top plate 37 to push the forged workpiece 5, thereby increasing the unloading rate.

[0042] The first limiting member, the auxiliary member and the second limiting member are each provided with two groups correspondingly and are symmetrically arranged.

[0043] During the forging process of the crossbar, the stability of the workpiece 5 is of vital importance. If the workpiece 5 is displaced or shaken, it will cause forging defects and increase the defective rate. This instability may be caused by external forces or improper equipment adjustment, which may cause various quality problems in the forged crossbar. Therefore, ensuring the stability of the workpiece 5 during the forging process is a key concern in the production process. This not only affects the final quality of the product, but is also directly related to the efficiency and cost control of production. Keeping the workpiece 5 stable is of great significance for reducing variables in production, ensuring process consistency and product reliability. Therefore, this solution stabilizes the workpiece 5 during forging by setting a stabilizing mechanism, and adopts a multi-directional limit assembly to enhance the fixing effect of the workpiece 5.

[0044] Instructions for use: The telescopic rod 3 is fixedly connected to the external support frame. When it is necessary to forge a cross arm, first, place the workpiece 5 on the lower mold 1, then start the telescopic rod 3, so that the telescopic rod 3 drives the upper mold 4 to descend, and the upper mold 4 will drive the vertical rod 7 and the top block 8 on the vertical rod 7 to descend through the fixed shaft 1 6. The top block 8 is rotatably connected to the fixed shaft 2 10 on the transmission rod 11 through the connecting rod 9, and the clamping rod 13 on the transmission rod 11 is slidably connected to the slide groove 12. Therefore, when the top block 8 descends, under the action of the connecting rod 9 and the transmission rod 11, the clamping rod 13 will slide inside the slide groove 12, and the clamping rod 13 will slide within the slide groove 12 to prevent the clamping rod 13 from falling off the slide groove 12. The clamping rods 13 on both sides are synchronously displaced toward the workpiece 5 to preliminarily fix the workpiece 5.

[0045] Secondly, when the clamping rod 13 moves toward the workpiece 5 inside the slide groove 12, since one end of the pull rope 19 is fixedly connected to the inner wall of the slide groove 12, the slide rod 15 at the other end of the pull rope 19 will drop inside the slide cavity 14 and squeeze the spring 17, and the lower pressure plate 16 at the other end of the slide rod 15 will drop synchronously and fit closely with the workpiece 5 to increase the limit position. The spring 17 can make the slide rod 15 rise and return to its original position when the fixation is released;

[0046] When the vertical rod 7 descends, the wedge block 20 is brought down with it, and the wedge block 20 collides and slides with the wedge block 22 on the clamping plate 21, so that the clamping plate 21 is pressed against the workpiece 5. The two groups of clamping plates 21 limit the front and rear ends of the clamping plate 21 respectively, further increasing the limiting direction and improving the fixing effect. The support frame 23, the limiting plate 24 and the spring 25 support the clamping plate 21. The spring 25 can restore the clamping plate 21 to its original position when the limit is released.

[0047] When the fixed shaft 210 is displaced, the gear 27 connected to the outer surface of the fixed shaft 210 rotates because it meshes with the rack 26, and the gear 27 will rotate, and the gear 27 will mesh with the gear 29 on the rotating shaft 28. However, when the upper mold 4 is pressed down for forging, the gear 29 will not drive the rotating shaft 28 to rotate due to the setting of the internal one-way bearing. When the upper mold 4 is forged and raised, the gear 27 reverses and drives the rotating shaft 28 to rotate under the action of the one-way bearing, and the rotating shaft 28 drives the cam 30 to rotate. When the piston plate moves to one side, the one-way valve inside the intake pipe is opened to inhale air. When the piston plate moves to the other side, the one-way valve inside the connecting pipe 35 is opened to discharge the gas inside the sleeve 31 into the cavity 36 through the connecting pipe 35, thereby pushing the ejector column 38 and driving the ejector plate 37 to push the forged workpiece 5, thereby increasing the unloading rate.

[0048] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A crossbar forging jig, comprising a lower die (1), an upper die (4) being arranged on the upper side of the lower die (1), a telescopic rod (3) being fixedly mounted on the upper end surface of the upper die (4), characterized in that: The left and right end surfaces of the lower mold (1) are both fixedly mounted with side plates (2); a workpiece (5) is arranged above the lower mold (1); a stabilizing mechanism is arranged inside the lower mold (1); the stabilizing mechanism comprises a limiting member 1 arranged on both sides of the lower mold (1); the limiting member 1 comprises a fixed shaft 1 (6) fixedly mounted on the front end surface of the upper mold (4); a vertical rod (7) is fixedly mounted on the front end of the fixed shaft 1 (6); a top block (8) is fixedly mounted on the lower end of the vertical rod (7); A transmission rod (11) is arranged below the side plate (2), a fixed shaft 2 (10) is fixedly installed at the front end of the transmission rod (11), a connecting rod (9) is rotatably connected between the fixed shaft 2 (10) and the top block (8), a sliding groove (12) is provided on the upper end surface of the side plate (2), a clamping rod (13) is slidably connected inside the sliding groove (12), the lower end of the clamping rod (13) is fixedly connected to the transmission rod (11), and the upper end of the clamping rod (13) is arranged on both sides of the workpiece (5).

2. A crossbar forging tool according to claim 1, characterized in that: The stabilizing mechanism also includes an auxiliary component arranged inside the clamping rod (13), and the auxiliary component includes a sliding cavity (14) arranged at the upper end of the clamping rod (13), the interior of the sliding cavity (14) is slidably connected with a sliding rod (15), and the upper end of the sliding rod (15) is fixedly mounted with a lower pressure plate (16).

3. A crossbar forging tool according to claim 2, characterized in that: A spring (17) is fixedly installed between the lower end of the sliding rod (15) and the lower end surface of the interior of the sliding cavity (14); a limit cavity (18) is provided inside the clamping rod (13); a pull rope (19) is slidably connected inside the limit cavity (18); one end of the pull rope (19) is fixedly connected to the sliding rod (15); and the other end of the pull rope (19) extends to the interior of the sliding groove (12) and is fixedly connected to the inner wall of the sliding groove (12).

4. A crossbar forging tool according to claim 3, characterized in that: The stabilizing mechanism also includes two limiting members arranged on the front and rear sides of the workpiece (5), the limiting member two including a wedge block one (20) fixedly mounted on the rear end face of the vertical rod (7), a clamping plate (21) arranged inside the lower mold (1), a wedge block two (22) fixedly mounted on the front end face of the clamping plate (21), and the wedge block one (20) and the wedge block two (22) are arranged correspondingly.

5. A crossbar forging tool according to claim 4, characterized in that: Support frames (23) are fixedly mounted on both sides of the front end surface of the clamping plate (21), one end of the support frame (23) is slidably connected to the lower mold (1), a limit plate (24) is fixedly mounted on the outer surface of the support frame (23), and a second spring (25) is fixedly mounted between the limit plate (24) and the lower mold (1).

6. A crossbar forging tool according to claim 5, characterized in that: The stabilizing mechanism also includes a discharge piece arranged inside the lower mold (1), the discharge piece includes a fixed shaft 2 (10) whose outer surface is rotatably connected to a gear 1 (27), and a rack (26) is fixedly mounted on the front end surface of the lower mold (1), and the rack (26) is meshed with the gear 1 (27).

7. A crossbar forging tool according to claim 6, characterized in that: The front end surface of the connecting rod (9) is rotatably connected to a rotating shaft (28), one side of the gear one (27) is meshed with a gear two (29), the rotating shaft (28) passes through the connecting rod (9) and is fixedly connected to the gear two (29), a one-way bearing is arranged inside the gear two (29), and a cam (30) is fixedly installed at the front end of the rotating shaft (28).

8. A crossbar forging tool according to claim 7, characterized in that: A sleeve (31) is fixedly mounted on the front end surface of the connecting rod (9), a protrusion (32) is arranged on one side of the sleeve (31), the protrusion (32) is arranged corresponding to the cam (30), a rod body (33) is fixedly mounted on one end of the protrusion (32), a piston plate is slidably connected inside the sleeve (31), one end of the rod body (33) extends to the inside of the sleeve (31) and is fixedly connected to the piston plate, and a spring three (34) is fixedly mounted between the protrusion (32) and the sleeve (31).

9. A crossbar forging tool according to claim 8, characterized in that: The outer surface of the sleeve (31) is connected to an air intake pipe, one end of the sleeve (31) is connected to a connecting pipe (35), the interior of the lower mold (1) is slidably connected to a top plate (37), a top column (38) is fixedly installed on the lower end surface of the top plate (37), a cavity (36) is opened inside the lower mold (1), the top column (38) is slidably connected to the cavity (36), and the connecting pipe (35) is connected to the cavity (36) with each other.

10. A crossbar forging tool according to claim 9, characterized in that: The first limiting member, the auxiliary member and the second limiting member are each provided in two groups correspondingly and are symmetrically arranged.

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