Radial forging machine

Abstract

A radial forging machine comprises a forging box body, a forging striking assembly, a driving assembly and an adjusting assembly. The forging striking assembly comprises n hammer rods and hammer heads, n is any even number ranging from 2 to 8, the n hammer rods are slidably connected into the forging box body and distributed in the circumferential direction of the forging center at equal intervals, and the hammer heads are connected to the ends, facing the forging center, of the hammer rods; the driving assembly is connected to the end, away from the forging center, of the hammer rod and used for driving the hammer rod to reciprocate in the forging box. The adjusting assembly comprises an adjusting nut, a first worm gear, a first worm, a second worm gear, a second worm, a transmission shaft and a driver. One side of the adjusting nut is in threaded connection with the end, away from the forging center, of the hammer rod. The second worms on the two diagonal hammer rods on the two sides of the blank are connected to the same transmission shaft pairwise, so that the two diagonal hammer rods on the two sides of the blank are synchronously adjusted and advance and retreat together, and deviation of a forging center point is avoided.

Description

Technical Field

[0001] The utility model belongs to the field of radial forging equipment, in particular to a radial forging machine. Background Art

[0002] Radial forging is to distribute several hammers symmetrically around the billet and perform high-frequency synchronous forging on the billet in the radial direction. The billet is usually rotated and fed axially to reduce the cross-sectional size of the billet and extend it axially. At the same time, the pressure direction rotates around the axis to make the cross-section symmetrical. The equipment used is a radial forging machine.

[0003] Several hammers of the existing radial forging machine are driven by driving components respectively. When forging the billet in the radial direction, in order to prevent the billet from being eccentric, it is necessary to ensure that the hammers at the diagonals on both sides of the billet are kept synchronized. However, it is troublesome to debug each hammer separately. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model aims to provide a radial forging machine.

[0005] In order to solve the above problems, the utility model adopts the following technical solutions:

[0006] A radial forging machine comprises a forging box, a forging striking assembly, a driving assembly and an adjusting assembly; the forging striking assembly comprises n hammer rods and hammer heads, n is any even number between 2 and 8, the n hammer rods are slidably connected in the forging box and are equidistantly distributed in the circumferential direction of the forging center, the hammer heads are connected to one end of the hammer rod facing the forging center; the driving assembly is connected to one end of the hammer rod away from the forging center to drive the hammer rod to reciprocate in the forging box; the adjusting assembly comprises an adjusting nut, a first worm wheel, a first worm, a second worm wheel, a second worm, a transmission shaft and a driver, one side of the adjusting nut is threadedly connected to one end of the hammer rod away from the forging center, and the other side abuts against the driving assembly, the first worm wheel is connected to the adjusting nut, the first worm is coaxially connected to the second worm wheel, the first worm is meshed and driven with the first worm wheel, the second worm wheel and the second worm are meshed and driven, the second worms on the two hammer rods diagonally on both sides of the blank are connected to the same transmission shaft, and the driver is connected to the transmission shaft to drive the transmission shaft to rotate.

[0007] Preferably, the driving assembly includes a slide plate and an eccentric shaft, the eccentric shaft is connected inside the slide plate to drive the slide plate to move back and forth, the slide plate is movably connected inside the forging box and abuts against the end of the adjusting nut to be driven by the eccentric shaft to push the hammer rod to move back and forth inside the forging box.

[0008] Preferably, n is 4.

[0009] Preferably, the driver is a hydraulic motor.

[0010] Preferably, a limit protection device is provided on the hammer rod, and the limit protection device includes a shell, a detection nut, a bracket and a sensor, the detection nut is threadedly connected to the shaft connecting the first worm and the second worm wheel, the detection nut is connected to a laterally extending detection arm, the shell covers the outer side of the shaft connecting the first worm and the second worm wheel, the shell is provided with a sliding track, the detection arm is slidably connected in the sliding track, the bracket is connected to the shell, and the sensor is connected to the bracket for sending an electrical signal to the radial forging machine main machine when the detection arm is detected.

[0011] Beneficial effects of the utility model

[0012] Compared with the prior art, the advantages of the present invention are:

[0013] The utility model drives the transmission shaft to rotate through a driver, and the second worm on the transmission shaft drives the adjusting nut to rotate through a transmission pair composed of the second worm wheel, the first worm and the first worm wheel, so that the hammer rod is adjusted to move toward or away from the forging center point through the thread in the adjusting nut. Since the second worms on the two hammer rods at the diagonal sides of the blank are connected to the same transmission shaft, the two hammer rods at the diagonal sides of the blank are synchronously adjusted, so that the two hammer rods move forward and backward together, and the deviation of the forging center point is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the forging box, forging striking assembly and driving assembly of the utility model;

[0016] Figure 3 , 4 It is a structural schematic diagram of the adjustment component of the utility model;

[0017] Figure 5 for Figure 4 A partial enlarged view of point A in the middle. DETAILED DESCRIPTION

[0018] 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 in 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.

[0019] In the description of the present invention, it should be noted that the terms "upper / lower end", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "setting / sleeving", "sleeve connection", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] See also Figure 1-5 The utility model provides a technical solution: a radial forging machine, comprising a forging box 5, a forging striking assembly, a driving assembly and an adjusting assembly; the forging striking assembly comprises n hammer rods 1 and hammer heads 2, n is any even number from 2 to 8, the n hammer rods 1 are slidably connected in the forging box 5 and are equidistantly distributed in the circumferential direction of the forging center, the hammer heads 2 are connected to one end of the hammer rod 1 facing the forging center; the driving assembly is connected to one end of the hammer rod 1 away from the forging center to drive the hammer rod 1 to reciprocate in the forging box 5; the adjusting assembly comprises an adjusting nut 6, a first worm gear 71, a first worm 72, a second worm gear 7 3. A second worm 74, a transmission shaft 75 and a driver 76. One side of the adjusting nut 6 is threadedly connected to an end of the hammer rod 1 away from the forging center, and the other side abuts against the driving assembly. The first worm wheel 71 is connected to the adjusting nut 6. The first worm 72 is coaxially connected to the second worm wheel 73. The first worm 72 is meshingly connected to the first worm wheel 71 for transmission. The second worm wheel 73 is meshingly connected to the second worm 74 for transmission. The second worms 74 on the two hammer rods 1 diagonally on both sides of the blank are connected to the same transmission shaft 75 in pairs. The driver 76 is connected to the transmission shaft 75 to drive the transmission shaft 75 to rotate.

[0022] When in use, the driver 76 drives the transmission shaft 75 to rotate, and the second worm 74 on the transmission shaft 75 drives the adjusting nut 6 to rotate through the transmission pair composed of the second worm gear 73, the first worm 72, and the first worm gear 71, so that the hammer rod 1 is adjusted to move toward or away from the forging center point through the thread in the adjusting nut 6. Since the second worm gears 74 on the two hammer rods 1 diagonally on both sides of the blank are connected to the same transmission shaft 75, the two hammer rods 1 diagonally on both sides of the blank can be adjusted synchronously, so that the two can move forward and backward together to avoid the deviation of the forging center point.

[0023] Specifically, the driving assembly includes a slide plate 3 and an eccentric shaft 4. The eccentric shaft 4 is connected inside the slide plate 3 to drive the slide plate 3 to move back and forth. The slide plate 3 is movably connected inside the forging box 5 and abuts against the end of the adjusting nut 6 to be driven by the eccentric shaft 4 to push the hammer rod 1 to move back and forth inside the forging box 5, thereby driving the hammer rod 1.

[0024] Specifically, n in the present invention is 4, that is, the forging striking assembly includes 4 hammer rods.

[0025] Specifically, the driver 76 is a hydraulic motor.

[0026] Furthermore, a limit protection device is provided on the hammer rod 1, and the limit protection device includes a shell 81, a detection nut 82, a bracket 83 and a sensor 84. The detection nut 82 is threadedly connected to the shaft connecting the first worm 72 and the second worm wheel 73. The detection nut 82 is connected to a detection arm 85 extending laterally. The shell 81 covers the outer side of the shaft connecting the first worm 72 and the second worm wheel 73. A sliding track 86 is provided on the shell 81. The detection arm 85 is slidably connected in the sliding track 86. The bracket 83 is connected to the shell 81. The sensor 84 is connected to the bracket 83 to send an electrical signal to the radial forging machine main machine when the detection arm 85 is detected. When in use, while the hammer rod 2 moves, the detection nut 82 moves synchronously with the first worm 72 and the second worm wheel 73 through the transmission pair composed of the second worm gear 73, the first worm 72 and the first worm wheel 71. Since the sliding track 86 on the outer shell 81 constrains the detection arm 85, the detection arm 85 can only slide up and down on the sliding track 86. By setting the position of the sensor 84, when the hammer head 2 moves to the maximum movable position, the sensor 84 can detect the detection arm 85 to avoid collision of the hammer head 2, thereby protecting the forging striking assembly.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A radial forging machine, characterized in that: It comprises a forging box (5), a forging striking component, a driving component and an adjusting component; The forging striking assembly comprises n hammer rods (1) and hammer heads (2), wherein n is any even number between 2 and 8, the n hammer rods (1) are slidably connected in a forging box (5) and are equidistantly distributed in the circumferential direction of the forging center, and the hammer heads (2) are connected to one end of the hammer rod (1) facing the forging center; The driving assembly is connected to an end of the hammer rod (1) away from the forging center to drive the hammer rod (1) to move back and forth in the forging box (5); The adjusting assembly comprises an adjusting nut (6), a first worm wheel (71), a first worm (72), a second worm wheel (73), a second worm (74), a transmission shaft (75) and a driver (76); one side of the adjusting nut (6) is threadedly connected to an end of the hammer rod (1) away from the forging center, and the other side abuts against the driving assembly; the first worm wheel (71) is connected to the adjusting nut (6); the first worm (72) and the second worm wheel (73) are coaxially connected; the first worm (72) and the first worm wheel (71) are meshingly connected for transmission; the second worm wheel (73) and the second worm (74) are meshingly connected for transmission; the second worm wheels (74) on the two diagonal hammer rods (1) on both sides of the blank are connected to the same transmission shaft (75); the driver (76) is connected to the transmission shaft (75) for driving the transmission shaft (75) to rotate.

2. A radial forging machine according to claim 1, characterized in that: The driving assembly comprises a slide plate (3) and an eccentric shaft (4); the eccentric shaft (4) is connected inside the slide plate (3) to drive the slide plate (3) to move back and forth; the slide plate (3) is movably connected inside a forging box (5) and abuts against the end of an adjusting nut (6) to be driven by the eccentric shaft (4) to push the hammer rod (1) to move back and forth inside the forging box (5).

3. A radial forging machine according to claim 1, characterized in that: n is 4.

4. A radial forging machine according to claim 1, characterized in that: The driver (76) is a hydraulic motor.

5. A radial forging machine according to any one of claims 1 to 4, characterized in that: A limit protection device is provided on the hammer rod (1), and the limit protection device comprises a housing (81), a detection nut (82), a bracket (83) and a sensor (84); the detection nut (82) is threadedly connected to a shaft connecting the first worm (72) and the second worm wheel (73); a detection arm (85) extending laterally is connected to the detection nut (82); the housing (81) covers the outer side of the shaft connecting the first worm (72) and the second worm wheel (73); a sliding track (86) is provided on the housing (81); the detection arm (85) is slidably connected in the sliding track (86); the bracket (83) is connected to the housing (81); and the sensor (84) is connected to the bracket (83) to send an electrical signal to a main machine of the radial forging machine when the detection arm (85) is detected.

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