CN210557639U - Crank arm action buffer device - Google Patents
Crank arm action buffer device Download PDFInfo
- Publication number
- CN210557639U CN210557639U CN201920929474.2U CN201920929474U CN210557639U CN 210557639 U CN210557639 U CN 210557639U CN 201920929474 U CN201920929474 U CN 201920929474U CN 210557639 U CN210557639 U CN 210557639U
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- spring
- crank arm
- pin rod
- positioning seat
- positioning
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Abstract
The utility model relates to a crank arm action buffer device, which comprises a spring positioning seat and a spring pin rod, wherein a through hole is arranged in the middle of the upper end surface of the spring positioning seat, the spring pin rod passes through the through hole, the lower end of the spring pin rod is provided with a fixing ring, the upper end of the spring pin rod is provided with a positioning baffle, an anti-bouncing spring is arranged between the fixing ring and the spring positioning seat, a buffer spring is arranged between the positioning baffle and the spring positioning seat, and the anti-bouncing spring and the buffer spring are both sleeved on the spring pin rod; the crank arm action buffer device further comprises a crank arm, the crank arm is rotationally connected with the pin shaft, pull rods are rotationally connected to two ends of the crank arm, one end of the crank arm is in contact with the positioning baffle, and when no external force exists, an included angle between the crank arm and the positioning baffle is 30-60 degrees. The utility model has the advantages of simple structure, convenient operation, guarantee that the positioning workpiece is not damaged.
Description
Technical Field
The utility model relates to a spring assembly especially relates to a connecting lever action buffer, belongs to mechanical positioning technical field.
Background
In modern industrialized era, an automated production line is formed, and whether the procedures of multiple production are reasonably combined into an automated production line is needed, and when products are processed in each production procedure, reasonable and effective unmanned automatic transfer and transmission are needed. The mechanical or electrical automation requirements used in the process are different, and meanwhile, the product can be automatically and precisely positioned in the automatic production process, a positioning device is naturally required to position the workpiece, and most of automatic production lines and automatic equipment need to position the workpiece so that the equipment or the machine can accurately process or produce the workpiece. At present, most of positioning is realized by adopting an air cylinder to drive a blocking plate to position, the positioning force is unchanged in size in the face of different workpiece sizes, and a workpiece with low strength is easily crushed by a positioning plate.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims at solving the problem that the workpiece is easily damaged by the existing positioning device, and provides a crank arm action buffer device which has simple structure and convenient operation and ensures that the positioning workpiece is not damaged.
The purpose of the utility model is mainly realized by the following scheme:
a crank arm action buffering device comprises a spring positioning seat and a spring pin rod, wherein a through hole is formed in the middle of the upper end face of the spring positioning seat, the spring pin rod penetrates through the through hole, a fixing ring is arranged at the lower end of the spring pin rod, a positioning baffle is arranged at the upper end of the spring pin rod, an anti-bouncing spring is arranged between the fixing ring and the spring positioning seat, a buffering spring is arranged between the positioning baffle and the spring positioning seat, and the anti-bouncing spring and the buffering spring are both sleeved on the spring pin rod; the crank arm action buffer device further comprises a crank arm, wherein the crank arm is rotatably connected with the pin shaft, and pull rods are rotatably connected to the two ends of the crank arm.
Preferably, the lower end of the anti-bouncing spring is welded on the fixing ring.
Preferably, the fixing ring is in threaded connection with the spring pin rod.
Preferably, the spring positioning seat is made of metal materials, so that the service life is prolonged.
Preferably, the ceramic wear-resistant block is installed at the contact position of the spring pin rod and the spring positioning seat, and the ceramic wear-resistant block is embedded in the spring positioning seat, so that the wear resistance of the spring positioning seat can be enhanced, and the service life of the spring positioning seat is prolonged.
Preferably, the difference value between the inner diameter of the anti-bouncing spring and the outer diameter of the spring pin rod is 2mm-5mm, the difference value between the inner diameter of the buffer spring and the outer diameter of the spring pin rod is 5mm-10mm, the buffer spring can well play a buffering role, the gap between the anti-bouncing spring and the spring pin rod is small, and the spring pin rod is prevented from shaking.
Preferably, one end of the crank arm is in contact with the positioning baffle, and when no external force exists, the included angle between the crank arm and the positioning baffle is 30-60 degrees.
Preferably, the positioning baffle is made of an acrylic plate, the surface of the acrylic plate is smooth, and the direct friction force between the positioning baffle and the crank arm can be reduced.
Preferably, a buffer cushion is arranged between the anti-bouncing spring and the spring positioning seat, so that noise generated when the anti-bouncing spring stretches is reduced.
Preferably, the anti-bouncing spring and the buffer spring are both metal springs, so that the service life of the springs can be prolonged.
Therefore, the utility model discloses possess following advantage: (1) the utility model has low manufacturing cost, simple and convenient structure principle, is beneficial to maintenance, can position workpieces with various sizes, ensures that the positioning workpieces are not damaged, and can be applied to positioning high-end and valuable products; (2) the buffer spring is used for buffering when the crank arm moves up and down, so that the inertia and noise of the crank arm are reduced, the anti-bouncing spring is used for stabilizing and preventing bouncing, the buffer spring can be applied to occasions needing buffering and flexible positioning, and the practicability is high.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Illustration of the drawings: the spring positioning device comprises a spring positioning seat 1, a spring pin rod 2, a fixing ring 3, a positioning baffle 4, an anti-bouncing spring 5, a buffer spring 6, a crank arm 7, a pin shaft 8, a pull rod 9, a ceramic wear-resistant block 10 and a cushion pad 11.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
As shown in figure 1, the utility model provides a technical scheme, a crank arm action buffer device, which comprises a spring positioning seat 1 and a spring pin rod 2 made of metal materials, wherein a through hole is arranged in the middle of the upper end surface of the spring positioning seat 1, the spring pin rod 2 passes through the through hole, a ceramic wear-resistant block 10 is arranged at the contact position of the spring pin rod 2 and the spring positioning seat 1, the ceramic wear-resistant block 10 is embedded in the spring positioning seat 1, a fixing ring 3 is arranged at the lower end of the spring pin rod 2, a positioning baffle 4 made of an acrylic plate is arranged at the upper end of the spring pin rod 2, an anti-bouncing spring 5 is arranged between the fixing ring 3 and the spring positioning seat 1, a buffer cushion 11 is arranged between the upper end of the anti-bouncing spring 5 and the spring positioning seat 1, the lower end of the anti-bouncing spring 5 is welded on the fixing ring 3, and the fixing, a buffer spring 6 is arranged between the positioning baffle 4 and the spring positioning seat 1, the anti-bouncing spring 5 and the buffer spring 6 are both sleeved on the spring pin rod 2 and are both metal springs, the difference between the inner diameter of the anti-bouncing spring 5 and the outer diameter of the spring pin rod 2 is 3mm, and the difference between the inner diameter of the buffer spring 6 and the outer diameter of the spring pin rod 2 is 8 mm; this connecting lever action buffer still includes connecting lever 7, connecting lever 7 rotates with round pin axle 8 to be connected, and round pin axle 8 is located the centre of connecting lever 7, 7 both ends of connecting lever all rotate and are connected with pull rod 9, 7 one end of connecting lever and the contact of positioning baffle 4, and when no external force, the contained angle between connecting lever 7 and the positioning baffle 4 is 45 degrees, guarantees that connecting lever 7 can be located positioning baffle 4 top.
Connecting a workpiece to be positioned at one end of a pull rod 9, and when a crank arm 7 contacts a positioning baffle 4, a buffer spring 6 and an anti-jump spring 5 start to be stressed, the buffer spring 6 starts to be stressed and compressed, and the positioning baffle 4 descends; when the positioning is started, the positioning baffle 4 only bears the self gravity of the crank arm 7, so that the hard positioning in the crank arm 7 is converted into soft positioning, a buffer stroke is provided for the crank arm 7 in the positioning process, and the crank arm 7 is prevented from damaging a workpiece when returning to the original position.
It should be understood that this example is for illustrative purposes only and is not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.
Claims (10)
1. A crank arm action buffer device is characterized in that: the crank arm action buffering device comprises a spring positioning seat (1) and a spring pin rod (2), wherein a through hole is formed in the middle of the upper end face of the spring positioning seat (1), the spring pin rod (2) penetrates through the through hole, a fixing ring (3) is arranged at the lower end of the spring pin rod (2), a positioning baffle (4) is arranged at the upper end of the spring pin rod (2), an anti-bouncing spring (5) is arranged between the fixing ring (3) and the spring positioning seat (1), a buffering spring (6) is arranged between the positioning baffle (4) and the spring positioning seat (1), and the anti-bouncing spring (5) and the buffering spring (6) are both sleeved on the spring pin rod (2); the crank arm action buffer device further comprises a crank arm (7), wherein the crank arm (7) is rotatably connected with the pin shaft (8), and pull rods (9) are rotatably connected to two ends of the crank arm (7).
2. The crank arm motion damping device according to claim 1, wherein: the lower end of the anti-bouncing spring (5) is welded on the fixed ring (3).
3. The crank arm motion damping device according to claim 1, wherein: the fixed ring (3) is in threaded connection with the spring pin rod (2).
4. The crank arm motion damping device according to claim 1, wherein: the spring positioning seat (1) is made of metal materials.
5. The crank arm motion damping device according to claim 1, wherein: and a ceramic wear-resistant block (10) is arranged at the contact position of the spring pin rod (2) and the spring positioning seat (1), and the ceramic wear-resistant block (10) is embedded in the spring positioning seat (1).
6. The crank arm motion damping device according to claim 1, wherein: the difference value between the inner diameter of the anti-bouncing spring (5) and the outer diameter of the spring pin rod (2) is 2mm-5mm, and the difference value between the inner diameter of the buffer spring (6) and the outer diameter of the spring pin rod (2) is 5mm-10 mm.
7. The crank arm motion damping device according to claim 1, wherein: one end of the crank arm (7) is in contact with the positioning baffle (4), and when no external force exists, the included angle between the crank arm (7) and the positioning baffle (4) is 30-60 degrees.
8. The crank arm motion damping device according to claim 1, wherein: the positioning baffle (4) is made of an acrylic plate.
9. The crank arm motion damping device according to claim 1, wherein: a buffer cushion (11) is arranged between the anti-bouncing spring (5) and the spring positioning seat (1).
10. The crank arm motion damping device according to claim 1, wherein: the anti-bouncing spring (5) and the buffer spring (6) are both metal springs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920929474.2U CN210557639U (en) | 2019-06-19 | 2019-06-19 | Crank arm action buffer device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920929474.2U CN210557639U (en) | 2019-06-19 | 2019-06-19 | Crank arm action buffer device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210557639U true CN210557639U (en) | 2020-05-19 |
Family
ID=70631666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920929474.2U Active CN210557639U (en) | 2019-06-19 | 2019-06-19 | Crank arm action buffer device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210557639U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114084422A (en) * | 2021-11-25 | 2022-02-25 | 陕西科技大学 | Collecting box suitable for fruit vegetables are picked |
-
2019
- 2019-06-19 CN CN201920929474.2U patent/CN210557639U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114084422A (en) * | 2021-11-25 | 2022-02-25 | 陕西科技大学 | Collecting box suitable for fruit vegetables are picked |
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