CN219634595U - Horizontal multi-connecting rod toggle rod type extension machine - Google Patents
Horizontal multi-connecting rod toggle rod type extension machine Download PDFInfo
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- CN219634595U CN219634595U CN202320337452.3U CN202320337452U CN219634595U CN 219634595 U CN219634595 U CN 219634595U CN 202320337452 U CN202320337452 U CN 202320337452U CN 219634595 U CN219634595 U CN 219634595U
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- rod
- connecting rod
- crankshaft
- main connecting
- sliding block
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- 238000004080 punching Methods 0.000 claims description 25
- 238000005452 bending Methods 0.000 claims description 4
- 239000004606 Fillers/Extenders Substances 0.000 claims 5
- 230000006978 adaptation Effects 0.000 claims 1
- 230000033001 locomotion Effects 0.000 abstract description 11
- 238000000641 cold extrusion Methods 0.000 abstract description 5
- 230000007246 mechanism Effects 0.000 abstract description 5
- 238000001125 extrusion Methods 0.000 description 8
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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Abstract
The utility model relates to the field of cold extrusion press machines, and discloses a horizontal multi-link toggle rod type stretching machine which comprises a crankshaft, a main link rod, a swinging rod, a distance adjusting link rod and a sliding block. When the main connecting rod swings through the rotation of the crankshaft, one end of the main connecting rod drives the swing rod to displace, the slide block moves along with the movement of the main connecting rod, namely, the swing rod directly drives the slide block to move, other media are not needed, loss is caused when force is transmitted to the slide block by the swing rod, the slide block can be displaced to the corresponding position through the structure, the damage of the slide block and the swing rod can be avoided, the slide block is directly connected to one end of the swing rod, and the movement mechanism is structurally simplified and refined.
Description
Technical Field
The utility model relates to the technical field of cold extrusion pressure mechanical equipment, in particular to a horizontal multi-connecting-rod toggle rod type stretching machine.
Background
The drawing machine is a cold extrusion press for drawing and elongating a metal workpiece. The transmission mechanisms of the existing horizontal stretching machines in China are crank connecting rod structures, and compared with the deep drawing, the transmission mechanisms are realized by continuous impact of machines such as a punch press and the like, the compactness and the shape stability of products after the horizontal stretching machines with the crank connecting rod structures are not ideal.
In document CN 203665982U, a motion mechanism of a vertical multi-link toggle rod type cold extrusion press is disclosed, which comprises a crankshaft, wherein the crankshaft is connected with one end of a main link, the other end of the main link is respectively connected with a distance-adjusting link and a swinging rod, the other end of the distance-adjusting link is connected with a vertical fixing seat, the other end of the swinging rod is connected with a guide pillar, the guide pillar is arranged in a fixed guide sleeve, the lower end of the guide pillar is connected with a sliding block, and the crank angle corresponds to the position of the sliding block.
When the swing rod receives force, the swing rod firstly transmits the force to the guide post connected with the swing rod, the guide post slides up and down in the guide sleeve, and simultaneously transmits the force to the slide block, and the guide post is required to displace in the guide sleeve in the whole process, so that the guide post can not only move in the guide sleeve to cause partial loss of the force transmitted by the swing rod to the guide post, the displacement of the slide block can not be expected, and the guide post and the guide sleeve can be worn, so that equipment is damaged, and the replacement is required, thereby improving the cost.
For this reason, a new solution is needed to solve the above technical problems.
Disclosure of Invention
In order to solve the problems, the utility model discloses a horizontal multi-link toggle rod type stretching machine, which is used for directly connecting a swing rod and a sliding block, so that the loss caused by the swing rod when the force is transmitted can be avoided, the connection quantity of parts is reduced, and the cost is reduced.
The technical scheme of the utility model is as follows: the horizontal multi-link elbow rod type stretching machine comprises a crankshaft, a main link, a swing rod, a distance adjusting link and a sliding block, wherein one end of the main link is connected with the crankshaft, two sides of the other end of the main link are connected with the distance adjusting link and the swing rod, one end, far away from the main link, of the distance adjusting link is connected with a machine body through a fixing seat, one end, far away from the main link, of the swing rod is directly connected with a punching rod through the sliding block, and the tail end of the punching rod is connected with an upper die for movement.
Further, the tail end of the swing rod is rotationally connected with the sliding block in any connecting mode, an inward groove is formed in one side, away from the swing rod, of the sliding block, and a punching rod is arranged in the groove.
Further, one side of the punching rod positioned in the groove of the sliding block is connected with the inside of the sliding block through the die shank sleeve, the sliding block on the upper portion of the groove is provided with a cover plate, and the upper portion of the punching rod positioned in the groove penetrates through the sliding block and the cover plate through a bolt on the top of the sliding block to fix the punching rod.
Further, the distance-adjusting connecting rod is rotationally connected with the fixing seat, and the fixing seat is fixed on the machine body.
Further, the tail end of the main connecting rod is provided with an inward arc-shaped groove, a crankshaft is arranged in the arc-shaped groove, and the crankshaft is driven to rotate by a motor through an external belt pulley and a belt.
Further, one side of the crankshaft far away from the main connecting rod is provided with a main connecting rod cover, the inner side of the main connecting rod cover is in arc-shaped fit with the outer surface of the crankshaft, the length of the main connecting rod cover is larger than the diameter of the crankshaft, and the parts of the main connecting rod cover, which are positioned on the two sides of the crankshaft, are fixedly connected with the swing rods through bolts.
Further, a bending part facing to one side is arranged between the lower part and the upper part of the main connecting rod, which are connected with the crankshaft, and the crankshaft is positioned at the position inside the bending part.
The utility model has the advantages that: 1. when the main connecting rod swings through the rotation of the crankshaft, one end of the main connecting rod drives the swing rod to displace, the slide block moves along with the movement of the main connecting rod, namely, the swing rod directly drives the slide block to move, other mediums are not needed, loss is avoided when the swing rod transmits force to the slide block, the slide block can be displaced to the corresponding position through the structure, the damage of the slide block and the swing rod can be avoided, and the slide block is directly connected to one end of the swing rod, so that the movement mechanism has the advantages of simple structure, smooth movement, material saving and energy saving, and cost reduction.
2. According to the utility model, the swing rod and the distance adjusting connecting rod are respectively arranged at two sides of one end of the main connecting rod, so that the distance adjusting connecting rod can limit and prevent the main connecting rod from slipping when the main connecting rod swings.
3. The utility model has a nominal force stroke with a certain distance, namely a certain distance from the generation starting point of the extrusion capacity to the stroke end point, can generate larger extrusion force and longer-period nominal force, and the sliding block accelerates and slows down when the extrusion force is gradually increased when advancing between the nominal force strokes, and has short dead time when reaching the stroke end point, thereby ensuring that the metal workpiece is deformed slowly and smoothly by cold extrusion in the extending forming process, the wall thickness is uniform and stable, and no rebound deformation is generated after forming.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of a top view of the present utility model;
FIG. 3 is an enlarged view of the portion A of FIG. 1 illustrating the structure of the present utility model
Fig. 4 is a schematic structural view of an enlarged view of the portion B of fig. 1 according to the present utility model.
Wherein: 1. the die comprises a sliding block, 1-1, a groove, 2, a swing rod, 3, a main connecting rod, 4, a distance adjusting connecting rod, 5, a fixed seat, 6, a machine body, 7, a crankshaft, 8, a main connecting rod cover, 9, a cover plate, 10, a punching rod, 11 and a die shank sleeve.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.
As shown in fig. 1-4, the horizontal multi-link elbow rod type stretching machine comprises a crankshaft 7, a main link 3, a swing rod 2, a distance adjusting link 4 and a sliding block 1, wherein one end of the main link 3 is connected with the crankshaft 7, two sides of the other end are connected with the distance adjusting link 4 and the swing rod 2, one end, far away from the main link 3, of the distance adjusting link 4 is connected with a machine body 6 through a fixing seat 5, and one end, far away from the main link 3, of the swing rod 2 is directly connected with a punching rod 10 through the sliding block 1. When the crankshaft 7 rotates, the main connecting rod 3 moves to drive the swing rod 2 and the distance adjusting connecting rod 4 to move, the swing rod 2 moves to drive the sliding block 1 to move back and forth, and the upper die arranged at the top end of the sliding block 1 moves to squeeze the lower die, so that a workpiece in the cavity of the lower die is stretched and prolonged.
The tail end of the swing rod 2 is rotationally connected with the sliding block 1 in any connecting mode, an inward groove 1-1 is formed in one side, far away from the swing rod 2, of the sliding block 1, a punching rod 10 is arranged in the groove 1-1, the crankshaft 7 rotates and then drives the swing rod 2, the swing rod 2 drives the sliding block to move, and meanwhile, the punching rod 10 just moves in a front-back displacement mode, so that an extrusion die connected with the punching rod 10 has extrusion and recovery force during extrusion.
One side of the punching rod 10 positioned in the sliding block groove 1-1 is connected with the inside of the sliding block 1 through the die shank sleeve 11, the sliding block 1 at the upper part of the groove 1-1 is provided with the cover plate 9, the upper part of the punching rod 10 positioned in the groove 1-1 penetrates through the sliding block 1 and the cover plate 9 through a bolt at the top of the sliding block 1 to fix the punching rod 10 in the groove 1-1 in the sliding block 1, the punching rod 10 also moves along with the displacement of the sliding block 1, and meanwhile, the swinging rod 2 drives the sliding block 1 to move, and meanwhile, because the punching rod 10 is positioned in the groove 1-1 of the sliding block 1, when the sliding block 1 moves, the punching rod 10 is fixed on the sliding block 1 through the bolt, and the punching rod 10 also moves along with the sliding block 1 in a sliding way.
The distance-adjusting connecting rod 4 and the fixing seat 5 are rotationally connected, the fixing seat 5 is fixed on the machine body 6, the distance-adjusting connecting rod 4 plays a role in supporting the main connecting rod 3, when the crankshaft 7 performs circular rotation motion to drive the swinging rod 3 to move up and down, one end of the distance-adjusting connecting rod 4 is fixed on the machine body, and the other end of the distance-adjusting connecting rod can have a certain supporting force on the swinging rod 2, so that one end of the swinging rod 2 performs circular motion in a certain range.
The end of the main connecting rod 3 is provided with an inward arc-shaped groove, a crankshaft 7 is arranged in the arc-shaped groove, the crankshaft 7 is driven to rotate by a motor through an external belt pulley and a belt, one side of the crankshaft 7 away from the main connecting rod 3 is provided with a main connecting rod cover 8, the inner side of the main connecting rod cover 8 is matched with the arc-shaped surface of the crankshaft 7, the length of the main connecting rod cover 8 is greater than the diameter of the crankshaft 7, the parts of the main connecting rod cover 8, which are positioned on two sides of the crankshaft 7, are fixedly connected with the main connecting rod 3 through bolts, the lower part and the upper part of the main connecting rod 2, which are connected with the crankshaft 7, are provided with bends towards one side, and the crankshaft is positioned at the positions inside the bends. The motor drives the crankshaft 7 to rotate through the belt and the belt pulley to do circular motion in a certain range, so that one end of the main connecting rod 3 is driven to correspondingly rotate, the main connecting rod cover 8 fixes the crankshaft 7 in the arc-shaped groove of the main connecting rod 3, and when the motor drives the crankshaft 7 to move, the main connecting rod cover 8 fixes the crankshaft 7, so that the crankshaft 7 is prevented from flying out and is fixed in the arc-shaped groove of the swing rod 3.
The crankshaft 7 drives the main connecting rod 3 to drive the sliding block 1 to displace, the whole device has a nominal force stroke with a certain distance, namely, a certain distance is reserved from the starting point of the extrusion capability to the end point of the stroke, and larger extrusion force and longer nominal force can be generated.
Working principle: the external motor is started, the belt is driven by the motor to run through the belt pulley, the belt drives the crankshaft 7 to rotate randomly, the crankshaft 7 moves according to the circular motion track, meanwhile, the crankshaft 7 rotates, the crankshaft 7 is fixedly connected with one end of the main connecting rod 3, so that the other end of the main connecting rod 3 also moves circularly, the distance-adjusting connecting rod 4 connected with the main connecting rod 3 plays a role in supporting the main connecting rod 3, the main connecting rod 3 moves circularly at a set position and cannot break away, one end connected with the swing rod 2 and the sliding block 1 connected with the main connecting rod 3 drives the punching rod 10 to move, the sliding block 1 moves back and forth, the punching rod 10 arranged at the top end of the sliding block 1 drives the upper die to move towards the lower die, and a workpiece in the lower die cavity is stretched and prolonged.
It will be appreciated by persons skilled in the art that the embodiments of the utility model described above and shown in the drawings are by way of example only and not limitation, and that the objects of the utility model have been fully and effectively achieved. The functional and structural principles of the present utility model have been shown and described in the examples and embodiments of the utility model may be modified or practiced without departing from the principles described.
Claims (7)
1. The horizontal multi-connecting-rod toggle rod type extension machine comprises a crankshaft, a main connecting rod, a swinging rod, a distance-adjusting connecting rod and a sliding block, and is characterized in that: one end of the main connecting rod is connected with a crankshaft, two sides of the other end of the main connecting rod are connected with a distance adjusting connecting rod and a swinging rod, one end of the distance adjusting connecting rod, which is far away from the main connecting rod, is connected with a machine body through a fixing seat, and one end of the swinging rod, which is far away from the main connecting rod, is directly connected with a punching rod through a sliding block.
2. The horizontal multi-link toggle extender of claim 1, wherein: the tail end of the swing rod is rotationally connected with the sliding block in any connecting mode, an inward groove is formed in one side, far away from the swing rod, of the sliding block, and a punching rod is arranged in the groove.
3. The horizontal multi-link toggle-type stretcher of claim 2, wherein: one side of the punching rod located in the groove of the sliding block is connected with the inside of the sliding block through the die shank sleeve, a cover plate is arranged on the sliding block on the upper portion of the groove, and the upper portion of the punching rod located in the groove penetrates through the sliding block and the cover plate to fix the punching rod through a bolt on the top of the sliding block.
4. The horizontal multi-link toggle extender of claim 1, wherein: the distance-adjusting connecting rod is rotationally connected with the fixing seat, and the fixing seat is fixed on the machine body.
5. The horizontal multi-link toggle extender of claim 1, wherein: the tail end of the main connecting rod is provided with an inward arc-shaped groove, a crankshaft is arranged in the arc-shaped groove, and the crankshaft is driven to rotate by a motor through an external belt pulley and a belt.
6. The horizontal multi-link toggle extender of claim 1, wherein: the crankshaft is provided with a main connecting rod cover on one side far away from the main connecting rod, the inner side of the main connecting rod cover is in arc-shaped adaptation with the outer surface of the crankshaft, the length of the main connecting rod cover is larger than the diameter of the crankshaft, and the parts of the main connecting rod cover, which are positioned on the two sides of the crankshaft, are fixedly connected with the swing rods through bolts.
7. The horizontal multi-link toggle extender of claim 1, wherein: and a bending part facing to one side is arranged between the lower part and the upper part of the main connecting rod, which are connected with the crankshaft, and the crankshaft is positioned at the position inside the bending part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320337452.3U CN219634595U (en) | 2023-02-28 | 2023-02-28 | Horizontal multi-connecting rod toggle rod type extension machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320337452.3U CN219634595U (en) | 2023-02-28 | 2023-02-28 | Horizontal multi-connecting rod toggle rod type extension machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219634595U true CN219634595U (en) | 2023-09-05 |
Family
ID=87807801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320337452.3U Active CN219634595U (en) | 2023-02-28 | 2023-02-28 | Horizontal multi-connecting rod toggle rod type extension machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219634595U (en) |
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2023
- 2023-02-28 CN CN202320337452.3U patent/CN219634595U/en active Active
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