CN111745125A - Blank material feeding and positioning mechanism on soldering lug cold heading forming equipment - Google Patents

Abstract

The invention provides a blank material feeding and positioning mechanism on soldering lug cold heading forming equipment, and belongs to the technical field of machinery. The automatic feeding device comprises a machine body, a hydraulic cylinder and a rotating wheel, a linkage plate is fixedly arranged on a push rod of the hydraulic cylinder, a plurality of positioning holes are evenly formed in the rotating wheel in the circumferential direction, the positioning holes can be located under a lower trough, a first pressing block is fixedly arranged on the linkage plate, a first guide hole is formed in the machine body in the transverse direction, a first sliding block is connected in the first guide hole in a sliding mode, a first roller matched with the side face of the first pressing block is connected to the first sliding block in a rotating mode, two pushing plates corresponding to two suspension arms respectively are arranged on the machine body, a second roller is connected to one end, close to the second pressing block, of each pushing plate, a plurality of limiting plates located below the corresponding pushing plate are fixedly arranged on the pushing plates, and a plurality of track control assemblies corresponding. The blank positioning device has the advantages that the blanks can be orderly pushed on the premise of keeping positioning of the blanks, and the like.

Description

Blank material feeding and positioning mechanism on soldering lug cold heading forming equipment

Technical Field

The invention belongs to the technical field of machinery, and relates to a blank material feeding and positioning mechanism on soldering lug cold heading forming equipment.

Background

The dip brazing, also called brazing in liquid medium, is to dip the weldment partially or wholly into salt, mixture solution or brazing filler metal solution, and realize the brazing process by the heat of these liquid media, X55 soldering lug, drill bit hard soldering lug, etc., because of its characteristics such as small size, high precision requirement, many lines on the surface, etc., cause its production efficiency lower, former equipment complicated, control is tedious.

Disclosure of Invention

The invention aims to provide a blank material feeding and positioning mechanism on soldering lug cold heading forming equipment, aiming at solving the technical problem of how to orderly push blanks on the premise of positioning.

The purpose of the invention can be realized by the following technical scheme: a blank material feeding and positioning mechanism on soldering lug cold heading forming equipment is characterized by comprising a machine body, a hydraulic cylinder, a blanking groove and a rotating wheel, wherein a linkage plate is fixedly arranged on a push rod of the hydraulic cylinder, a plurality of positioning openings are uniformly and circumferentially arranged on the rotating wheel and can be positioned right below the blanking groove, a first pressing block is fixedly arranged on the linkage plate, a first guide hole is transversely formed in the machine body, a first sliding block is connected in the first guide hole in a sliding manner, a first roller matched with the side surface of the first pressing block is rotatably connected to the first sliding block, a first reset spring is arranged between the first sliding block and the first guide hole, a second guide hole is longitudinally formed in the first sliding block, a first wedge-shaped block is connected in the second guide hole in a sliding manner, and a second reset spring is connected between the first wedge-shaped block and the second guide hole, the guide inclined plane of the first wedge-shaped block faces one side of the first guide hole, and the first wedge-shaped block is positioned on one side, close to the first guide hole, of a vertical plane where the axis of the rotating wheel is positioned; when the first pressing block moves downwards, the first sliding block can be driven to move towards the first guide hole, and when the first sliding block moves away from the first guide hole, the first wedge-shaped block can rotate a certain angle with the rotating wheel; a support plate is arranged on the machine body, and the rotating wheel rotates to enable the blank in the positioning port to fall onto the support plate; the linkage plate is fixedly provided with two first suspension arms, the first suspension arms are rotatably connected with a pin shaft, the pin shaft is rotatably connected with a second pressing block through a torsional spring, the machine body is provided with two material pushing plates respectively corresponding to the two suspension arms, one end of the material pushing plate close to the second pressing block is rotatably connected with a second roller, the material pushing plate is fixedly provided with a plurality of limiting plates positioned below the material pushing plate, the machine body is provided with a plurality of track control assemblies corresponding to the limiting plates, each track control assembly comprises two positioning columns respectively positioned at the inner side and the outer side of each limiting plate, an interval is reserved between the axis of one positioning column on the same track control assembly and the axis of the other positioning column, one end of each positioning column close to the corresponding limiting plate is rotatably connected with a third roller, one end of each positioning column far away from the corresponding limiting plate is connected with a, the second pressing block moves downwards to push a second roller and a material pushing plate connected with the second roller to move horizontally, and when the material pushing plate moves horizontally, a limiting plate on the material pushing plate can sequentially abut against two third rollers on the inner side and the outer side of the material pushing plate; when the limiting plate abuts against the third roller positioned on the outer side of the limiting plate, the inner ends of the two material pushing plates are close to each other, and when the limiting plate abuts against the third roller positioned on the inner side of the limiting plate, the two material pushing plates are separated from each other; the inner sides of the two material pushing plates are respectively provided with a plurality of semicircular notches, the two corresponding notches on the two material pushing plates can form a material opening enclosing a blank when the two material pushing plates are close to each other, and one ends of the two material pushing plates, which are far away from the discharging direction, are also provided with a bayonet with the radian of 100-120 degrees; and a return spring which can enable the material pushing plate to be close to the second pressing block is arranged between the material pushing plate and the machine body.

Furthermore, the machine body is fixedly provided with two aligning rods which are respectively positioned at two sides of the rotating wheel, two side surfaces of the rotating wheel are respectively provided with aligning openings which are in one-to-one correspondence with the positioning openings, one end of the aligning rod, which faces the rotating wheel, is provided with a mounting hole, a positioning ball is connected in the mounting hole in a sliding manner, and a first compression spring is connected between the positioning ball and the bottom of the mounting hole.

Furthermore, a third guide hole formed in the machine body is formed in the lower portion of the first sliding block, a second wedge-shaped block is connected to the inside of the third guide hole in a longitudinal sliding mode, the guide inclined plane of the second wedge-shaped block faces to the side far away from the first guide hole, the first sliding block can abut against the end face of the second wedge-shaped block, and a second compression spring in a compression state is connected between the second wedge-shaped block and the third guide hole.

Furthermore, a plurality of rectangular positioning blocks are fixedly arranged on the machine body, and limiting grooves corresponding to the positioning blocks one to one are formed in the material pushing plate.

Rotation of the runner: the linkage plate moves downwards, the first pressing block acts on the first roller to enable the first sliding block to move towards the discharging direction, the first wedge-shaped block is compressed and is separated from contact with the rotating wheel, at the time, the cutting stage is performed, after the cutting is completed, the first sliding block resets, the first wedge-shaped block extends out and acts on the rotating wheel, and the eccentric position of the rotating wheel is stressed to rotate; the second wedge type piece can carry on spacingly to first slider, avoids it to break away from the track that slides that corresponds, and can be through compressing the first guiding hole of smooth and easy entering of second wedge type piece when just first slider inserts.

In order to ensure that the rotating wheel rotates by an angle of only one equant positioning opening every time, positioning balls are arranged, and the positioning balls can be partially inserted into the alignment openings on the rotating wheel, so that the rotating angle of the rotating wheel is accurate.

In the process of pushing the raw materials, a second pressing block downwards acts on a second roller, when the second pressing block does not act on the second roller, the material pushing plate is reset, in a cycle that the material pushing plate moves from front to back, the material pushing plate is moved towards the material discharging direction, after moving for a certain distance, the limiting plate sequentially passes through a third roller on the positioning column positioned on the inner side of the material pushing plate and a third roller on the positioning column positioned on the outer side of the limiting plate, so that two symmetrically distributed material pushing plates perform motions of folding and moving forwards, gradually opening and moving forwards, then gradually closing and moving backwards and finally folding, in the process of moving forwards, the blank positioned on the supporting plate is pushed towards the material discharging direction, when the blank is gradually opened, the blank is continuously pushed and the limitation on the blank is gradually removed, until the limitation on the blank is completely removed, the blank is gradually closed and moved backwards, and the next blank is wrapped before moving backwards to completely closing, at the moment, the blank is wrapped by two clamping openings which are respectively arranged on two material pushing plates and have the radian between 100 and 120, the material pushing plates move backwards through the pulling force of a return spring, the blank can be firstly placed in a semi-enclosed limiting part formed by two bayonets, then pushed into a material opening formed by two notches, then sent into a die opening below a pier pressing column, and finally pushed away from the carrier plate for blanking.

Drawings

Fig. 1 is a schematic perspective view of the cold heading forming apparatus.

FIG. 2 is a schematic view of the cold heading apparatus partially broken away to show the structure of the locating post.

FIG. 3 is a schematic structural view of the cold heading forming apparatus after the linkage plate is removed.

Fig. 4 is a top view of the present cold heading apparatus.

Fig. 5 is a schematic perspective view of a finished product manufactured by the cold heading forming apparatus.

Fig. 6 is a perspective view of fig. 3 from another angle.

Fig. 7 is a sectional view taken in the direction of a-a in fig. 4.

Fig. 8 is a left side view of fig. 4.

Fig. 9 is a sectional view taken in the direction D-D in fig. 8.

Fig. 10 is a schematic perspective view of the log feeding mechanism and the feeding and pushing mechanism.

FIG. 11 is a cross-sectional view of the wheel.

Fig. 12 is an enlarged view of a portion B in fig. 7.

Fig. 13 is an enlarged view of a portion C in fig. 7.

Fig. 14 is a schematic perspective view of the spring.

In the figure, 11, the fuselage; 12. a hydraulic cylinder; 13. a linkage plate; 21. a feeding and guiding hole; 22. a discharging groove; 23. a cutter head is cut; 24. a rotating wheel; 25. positioning the opening; 26. a first pressing block; 27. a first guide hole; 28. a first slider; 31. a first roller; 32. a first return spring; 33. a second guide hole; 34. a first wedge block; 35. a second return spring; 36. a carrier plate; 37. pressing the column; 41. an alignment rod; 42. aligning the port; 43. mounting holes; 44. a positioning bead; 51. a first hold-down spring; 52. a third guide hole; 53. a second wedge block; 54. a second hold-down spring; 55. a second pressing block; 56. a material pushing plate; 57. a second roller; 58. a limiting plate; 59. a positioning column; 61. a pin shaft; 62. a third return spring; 63. a third roller; 64. a material port; 65. a bayonet; 66. a die opening; 67. a limiting groove; 71. a feeding base; 72. a guide groove; 73. a trigger block; 74. a fourth roller; 75. a third pressing block; 76. a fourth return spring; 77. a check block; 78. a check spring; 79. a non-return slope; 81. a material pushing block; 82. a clamp spring groove; 83. a spring plate; 84. a locking spring; 85. and a fifth return spring.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 14, the cold heading forming device includes a machine body 11, a hydraulic cylinder 12, a raw material feeding mechanism, a cutting mechanism, a feeding and blanking mechanism and a heading forming mechanism, wherein a cylinder body of the hydraulic cylinder 12 is fixed on the machine body 11, a push rod of the hydraulic cylinder 12 is fixedly provided with a linkage plate 13, the raw material feeding mechanism includes a feeding and guiding hole 21 for inserting strip raw materials, the cutting mechanism includes a blanking slot 22 which is longitudinally arranged and perpendicular to the feeding and guiding hole 21, the linkage plate 13 is fixedly provided with a cutting tool bit 23 inserted in the blanking slot 22, the feeding and blanking mechanism includes a rotating wheel 24 rotatably connected to the machine body 11, a plurality of positioning ports 25 are uniformly arranged on the rotating wheel 24 in the circumferential direction, the positioning ports 25 can be positioned under the blanking slot 22, the linkage plate 13 is fixedly provided with a first pressing block 26, a first guiding hole 27 is transversely arranged on the machine body 11, a first sliding block 28 is slidably connected in the first guiding hole 27, a first roller 31 matched with the side face of the first pressing block 26 is rotatably connected to the first sliding block 28, a first reset spring 32 is arranged between the first sliding block 28 and the first guide hole 27, a second guide hole 33 is longitudinally formed in the first sliding block 28, a first wedge-shaped block 34 is slidably connected to the second guide hole 33, a second reset spring 35 is connected between the first wedge-shaped block 34 and the second guide hole 33, the guide inclined plane of the first wedge-shaped block 34 faces one side of the first guide hole 27, and the first wedge-shaped block 34 is positioned on one side, close to the first guide hole 27, of the vertical plane where the axis of the rotating wheel 24 is positioned; when the first pressing block 26 moves downwards, the first sliding block 28 can be driven to move towards the first guide hole 27, and when the first sliding block 28 moves towards the direction far away from the first guide hole 27, the first wedge-shaped block 34 can rotate at a certain angle with the toggle rotating wheel 24; a carrier plate 36 is arranged on the machine body 11, and the rotating wheel 24 rotates to enable the blank in the positioning opening 25 to fall onto the carrier plate 36; the upsetting and pressing forming mechanism comprises a die orifice 66 positioned on the carrier plate 36 and an upsetting column 37 fixedly arranged on the linkage plate 13, and the upsetting column 37 can stamp the blank positioned in the die orifice 66 when the linkage plate 13 moves downwards; the lower end of the cutting tool bit 23 is provided with a coating opening matched with the outer wall surface of the strip-shaped raw material.

The body 11 is fixedly provided with two alignment rods 41 respectively positioned at two sides of the rotating wheel 24, two side surfaces of the rotating wheel 24 are respectively provided with alignment ports 42 corresponding to the positioning ports 25 one by one, one end of the alignment rod 41 facing the rotating wheel 24 is provided with a mounting hole 43, a positioning ball 44 is slidably connected in the mounting hole 43, and a first compression spring 51 is connected between the positioning ball 44 and the bottom of the mounting hole 43.

The lower part of the first sliding block 28 is provided with a third guide hole 52 arranged on the machine body 11, a second wedge-shaped block 53 is longitudinally connected in the third guide hole 52 in a sliding manner, the guide inclined plane of the second wedge-shaped block 53 faces to the side far away from the first guide hole 27, the first sliding block 28 can abut against the end face of the second wedge-shaped block 53, and a second compression spring 54 in a compression state is connected between the second wedge-shaped block 53 and the third guide hole 52.

Two first suspension arms are fixedly arranged on the linkage plate 13, a pin shaft 61 is rotatably connected to the first suspension arms, a second pressing block 55 is rotatably connected to the pin shaft 61 through torsion springs, two material pushing plates 56 corresponding to the two suspension arms respectively are arranged on the machine body 11, one ends of the material pushing plates 56, which are close to the second pressing block 55, are rotatably connected to a second roller 57, a plurality of limiting plates 58 positioned below the material pushing plates 56 are fixedly arranged on the material pushing plates 56, a plurality of track control assemblies corresponding to the limiting plates 58 are arranged on the machine body 11, each track control assembly comprises two positioning columns 59 respectively positioned on the inner side and the outer side of each limiting plate 58, a space is formed between the axis of one positioning column 59 and the axis of the other positioning column 59 on the same track control assembly, one end of each positioning column 59, which is close to the corresponding limiting plate 58, is rotatably connected to a third roller 63, one end of each, the second pressing block 55 moves downwards to push the second roller 57 and the material pushing plate 56 connected with the second roller 57 to move horizontally, and when the material pushing plate 56 moves horizontally, the limiting plates 58 on the material pushing plate 56 can sequentially abut against two third rollers 63 on the inner side and the outer side of the material pushing plate 56; when the limiting plate 58 abuts against the third roller 63 positioned on the outer side of the limiting plate 58, the inner ends of the two material pushing plates 56 are close to each other, and when the limiting plate 58 abuts against the third roller 63 positioned on the inner side of the limiting plate 58, the two material pushing plates 56 are separated from each other; the inner sides of the two material pushing plates 56 are respectively provided with a plurality of semicircular gaps, the two corresponding gaps on the two material pushing plates 56 can form a material opening 64 for enclosing a blank when the two material pushing plates 56 are close to each other, and one end of each material pushing plate 56, which is far away from the material discharging direction, is also provided with a bayonet 65 with the radian of 100-120 degrees; a return spring is arranged between the material pushing plate 56 and the machine body 11 to enable the material pushing plate 56 to be close to the second pressing block 55.

A plurality of rectangular positioning blocks are fixedly arranged on the machine body 11, and the material pushing plate 56 is provided with limiting grooves 67 which correspond to the positioning blocks one by one.

The raw material feeding mechanism comprises a feeding base 71, two guide grooves 72 respectively arranged at two sides of the feeding base and two trigger blocks 73 respectively connected in the two guide grooves 72 in a sliding manner, one end, close to the feeding direction, of each trigger block 73 is rotatably connected with a fourth roller 74, an extension arm positioned below the linkage plate 13 is fixedly arranged on the linkage plate 13, a third pressing block 75 is rotatably connected onto the extension arm, the third pressing block 75 can move downwards to push the trigger blocks 73 to move in the guide grooves 72 in a sliding manner, and a fourth reset spring 76 for driving the third pressing block 75 to reset is connected between the position, deviated from the rotation center, of the third pressing block 75 and the extension arm; the feeding device comprises a feeding base, a feeding hole is formed in the feeding base, a plurality of check blocks 77 are uniformly arranged at one end, far away from the feeding direction, of the feeding hole in the circumferential direction, the inner ends of the check blocks 77 are hinged to a feeding base 71, check springs 78 in a stretching state are connected between the outer ends of the check blocks 77 and the hole wall of the feeding hole, check inclined planes 79 are arranged at the inner ends of the check blocks 77, the distance between one ends, close to the feeding direction, of the check inclined planes 79 and a hinge joint is larger than the distance between the other ends of the check inclined planes 79 and the hinge joint, a pushing block 81 connected in the feeding hole in a sliding mode is fixedly arranged at the other ends of trigger blocks 73, a clamp spring groove 82 is formed in the inner wall of the feeding hole, an annular elastic sheet 83 is clamped in the clamp spring groove 82, the middle of.

Further, a fifth return spring 85 is connected between the material pushing block 81 and the inner wall of the feeding hole at the end of the feeding hole close to the feeding direction.

The working process of the cold heading forming equipment is as follows:

pushing the raw material: inserting a linear or strip-shaped raw material into a feeding hole and a feeding and guiding hole 21, starting a hydraulic cylinder 12 to enable a linkage plate 13 to move downwards, enabling a third pressing block 75 to move downwards to push a fourth roller 74, enabling a trigger block 73 to move towards the feeding direction, enabling a pushing block 81 to extrude the middle of an elastic sheet 83 to reduce the inner hole space of the elastic sheet 83, enabling the inner wall of the inner hole of the elastic sheet 83 to be pressed on the outer wall of the raw material, enabling the elastic sheet 83 and the pushing block 81 to continue to move towards the feeding direction, enabling the raw material to be pushed towards the feeding direction until the end of the raw material abuts against the wall surface of a blanking groove 22, enabling a non-return block 77 not to be extruded by the pushing block 81 in the process, enabling a non-return spring 78 to provide pulling force for the outer end of the non-return block 77, enabling a non-return inclined plane 79 to swing to the vicinity of the raw material closer to the hinged point; in the process of resetting the hydraulic cylinder 12, the third pressing block 75 does not cause large resistance to the fourth roller 74, the material pushing block 81 returns under the action of the fifth resetting spring 85, the middle part of the elastic sheet 83 is weakened under pressure, the raw material is separated from the inner hole of the elastic sheet 83, the raw material is not driven to move synchronously in the process of returning the material pushing block 81, the non-return block 77 is 'straightened' under the action of the material pushing block 81, the part of the non-return block 77, which is farther than the hinged point, is close to the raw material, namely, is in contact with the raw material, and the raw material and the material pushing block 81 are prevented from moving synchronously.

Shearing raw materials: the hydraulic cylinder 12 acts to move the linkage plate 13 downwards, the cutting tool bit 23 moves downwards to cut the raw material at the position of the feeding and guiding hole 21, and the cut blank falls into the positioning opening 25 which faces upwards on the rotating wheel 24.

Rotation of the runner 24: the linkage plate 13 moves downwards, the first pressing block 26 acts on the first roller 31 to enable the first sliding block 28 to move towards the discharging direction, the first wedge-shaped block 34 is compressed and is separated from contact with the rotating wheel 24, at the cutting stage, after cutting is completed, the first sliding block 28 resets, the first wedge-shaped block 34 extends out and acts on the rotating wheel 24, and the eccentric position of the rotating wheel 24 is stressed to rotate; the second wedge-shaped block 53 can limit the first sliding block 28 to prevent the first sliding block 28 from separating from a corresponding sliding track, and the first sliding block 28 can smoothly enter the first guide hole 27 by compressing the second wedge-shaped block 53 when being inserted.

In order to ensure that the runner 24 rotates only one angle equally dividing the positioning opening 25 per rotation, the positioning ball 44 is provided, and the positioning ball 44 can be partially inserted into the alignment opening 42 on the runner 24, so that the rotation angle of the runner 24 is accurate.

In the process of pushing the raw material, the second pressing block 55 moves downwards to act on the second roller 57, when the second pressing block 55 does not act on the second roller 57, the pushing plate 56 resets, in a cycle of moving the pushing plate 56 from front to back, the pushing plate 56 moves towards the discharging direction, after moving for a certain distance, the limiting plate 58 sequentially passes through the third roller 63 on the positioning column 59 positioned on the inner side of the limiting plate and the third roller 63 on the positioning column 59 positioned on the outer side of the limiting plate 58, so that the two symmetrically distributed pushing plates 56 perform the motions of firstly folding and moving forwards, then gradually opening and moving forwards, then gradually folding and moving backwards and finally folding, in the process of moving forwards, the blank positioned on the supporting plate 36 is pushed towards the discharging direction, when gradually opening, the blank continues to be pushed and gradually releases the limit on the blank until completely releasing the limit on the blank, then gradually folding and moving backwards, and wrapping the next blank before completely folding, at the moment, the blank is wrapped by two clamping openings which are respectively arranged on the two material pushing plates 56 and have the radian of 100-120, the material pushing plates 56 move backwards through the pulling force of return springs, the blank can be firstly placed in a semi-enclosed limiting part formed by the two clamping openings 65, then pushed into a material opening 64 formed by the two notches, then sent into a die opening 66 below the upsetting column 37, and finally pushed away from the carrier plate 36 for blanking.

And (3) a pier pressing process: when the linkage plate 13 moves downwards, the pier pressing column 37 also moves downwards to perform pier pressing forming on the blank positioned in the die orifice 66.

Although the stroke of the linkage plate 13 is not long, the actions are still in sequence as follows: the method comprises the steps of raw material pushing, raw material shearing into blanks, blank pressing, blank pushing and rotating by a rotating wheel 24. The runner 24 is connected to the body 11 through a one-way bearing.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims (4)

1. The blank material walking positioning mechanism on the cold heading forming equipment for the soldering lug is characterized by comprising a machine body (11), a hydraulic cylinder (12), a rotating wheel (24) and a blanking groove (22), wherein a linkage plate (13) is fixedly arranged on a push rod of the hydraulic cylinder (12), a plurality of positioning holes (25) are uniformly formed in the rotating wheel (24) in the circumferential direction, the positioning holes (25) can be positioned under the blanking groove (22), a first pressing block (26) is fixedly arranged on the linkage plate (13), a first guide hole (27) is transversely formed in the machine body (11), a first sliding block (28) is slidably connected in the first guide hole (27), a first roller (31) matched with the side surface of the first pressing block (26) is rotatably connected to the first sliding block (28), and a first reset spring (32) is arranged between the first sliding block (28) and the first guide hole (27), a second guide hole (33) is longitudinally formed in the first sliding block (28), a first wedge-shaped block (34) is connected in the second guide hole (33) in a sliding mode, a second reset spring (35) is connected between the first wedge-shaped block (34) and the second guide hole (33), a guide inclined plane of the first wedge-shaped block (34) faces one side of the first guide hole (27), and the first wedge-shaped block (34) is located on one side, close to the first guide hole (27), of a vertical plane where the axis of the rotating wheel (24) is located; when the first pressing block (26) moves downwards, the first sliding block (28) can be driven to move towards the direction of the first guide hole (27), and when the first sliding block (28) moves towards the direction far away from the first guide hole (27), the first wedge-shaped block (34) can rotate at a certain angle with the rotating wheel (24); a carrier plate (36) is arranged on the machine body (11), and the rotating wheel (24) rotates to enable blanks in the positioning opening (25) to fall onto the carrier plate (36);

the linkage plate (13) is fixedly provided with two first suspension arms, the first suspension arms are rotatably connected with a pin shaft (61), the pin shaft (61) is rotatably connected with a second pressing block (55) through a torsion spring, the machine body (11) is provided with two material pushing plates (56) respectively corresponding to the two suspension arms, one end of each material pushing plate (56) close to the second pressing block (55) is rotatably connected with a second roller (57), the material pushing plates (56) are fixedly provided with a plurality of limiting plates (58) positioned below the material pushing plates (56), the machine body (11) is provided with a plurality of track control assemblies corresponding to the limiting plates (58), each track control assembly comprises two positioning columns (59) respectively positioned at the inner side and the outer side of the corresponding limiting plate (58), and a space is reserved between the axis of one positioning column (59) on the same track control assembly and the axis of the other positioning column (59), one end, close to the limiting plate (58), of the positioning column (59) is rotatably connected with a third roller (63), one end, far away from the limiting plate (58), of the positioning column (59) is connected with a third return spring (62) abutted against the machine body (11), the second pressing block (55) moves downwards to push the second roller (57) and a material pushing plate (56) connected with the second roller (57) to move horizontally, and when the material pushing plate (56) moves horizontally, the limiting plates (58) on the material pushing plate (56) can be abutted against two third rollers (63) on the inner side and the outer side of the material pushing plate (56) in sequence; when the limiting plate (58) abuts against the third roller (63) positioned on the outer side of the limiting plate (58), the inner ends of the two material pushing plates (56) are close to each other, and when the limiting plate (58) abuts against the third roller (63) positioned on the inner side of the limiting plate (58), the two material pushing plates (56) are separated from each other; the inner sides of the two material pushing plates (56) are respectively provided with a plurality of semicircular gaps, the two corresponding gaps on the two material pushing plates (56) can form a material opening (64) enclosing a blank when the two material pushing plates (56) are close to each other, and one end of each material pushing plate (56) far away from the material discharging direction is also provided with a bayonet (65) with a radian of 100-120 degrees; and a return spring which can enable the material pushing plate (56) to be close to the second pressing block (55) is arranged between the material pushing plate (56) and the machine body (11).

2. The blank material walking and positioning mechanism on the cold heading forming equipment for the soldering lug according to claim 1, wherein two aligning rods (41) respectively positioned at two sides of the rotating wheel (24) are fixedly arranged on the machine body (11), aligning holes (42) corresponding to the positioning holes (25) in a one-to-one manner are respectively formed in two side surfaces of the rotating wheel (24), a mounting hole (43) is formed in one end, facing the rotating wheel (24), of each aligning rod (41), a positioning bead (44) is connected in the mounting hole (43) in a sliding manner, and a first compression spring (51) is connected between the positioning bead (44) and the bottom of the mounting hole (43).

3. The blank material feeding and positioning mechanism on the cold heading forming device for the soldering lug according to claim 2, characterized in that a third guide hole (52) formed in the machine body (11) is formed below the first sliding block (28), a second wedge block (53) is longitudinally and slidably connected in the third guide hole (52), a guide inclined surface of the second wedge block (53) faces to the side far away from the first guide hole (27), the first sliding block (28) can abut against the end surface of the second wedge block (53), and a second compression spring (54) in a compressed state is connected between the second wedge block (53) and the third guide hole (52).

4. The blank material feeding and positioning mechanism on the cold heading forming equipment for the soldering lug as claimed in claim 1, 2 or 3, wherein a plurality of rectangular positioning blocks are fixedly arranged on the machine body (11), and the material pushing plate (56) is provided with limiting grooves (67) corresponding to the positioning blocks one by one.

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