Simple clamp
The simple clamp design with angle limiters and buffer blocks addresses structural complexity and space issues, offering stable and adjustable clamping operations.
Patent Information
- Application Number
- CN202420086766.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-12
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-01-12
AI Technical Summary
Existing clamps and clamping mechanisms are structurally complex, occupy large spaces, and lack angle control and stability in opening and closing operations.
A simple clamp design featuring a fixed seat, first and second clamping arms, a connecting rod, and a cylinder, with angle limiters and anti-collision buffer blocks, allowing simultaneous opening and closing of the arms and adjustable opening angles.
The design provides stable, space-efficient clamping with adjustable angles, reducing complexity and cost while ensuring stable opening and closing operations.
Smart Images
Figure CN222200211U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of clamps, in particular to a simple clamp. Background Art
[0002] A clamp or clamping mechanism is mainly used to clamp a workpiece so that an external processing device can process the workpiece. The structures of the clamp or clamping mechanism in the prior art are various, with different advantages and disadvantages. In practical applications, clamps or clamping mechanisms of different structures can be used according to different workpiece structures and / or different usage occasions.
[0003] Among the existing patents, the Chinese patent document with application number 201811041039.2 discloses a connecting rod clamping device and a clamping method, including a base plate, a cylinder, a cylinder seat, a top block, a cross bar, two connecting rods, two clamping arms and a cushion block. The cylinder seat is arranged on the base plate, the cylinder is arranged on the cylinder seat, the piston rod of the cylinder is connected to the top block, the top block is connected to the cross bar, one end of the connecting rod is hinged to the cross bar, and the other end is hinged to the clamping arm. The two clamping arms are hinged to the base, and a cushion block is set in one of the two clamping arms, and the cushion block is at the same horizontal height as the other clamping arm. The operating principle of the above-mentioned connecting rod clamping device is: the piston rod of the cylinder performs telescopic movement to drive the top block to move, the top block drives the connecting rod through the cross bar, and the connecting rod drives the clamping arm to open and close. The structure of this patent document is complex, and the entire device is arranged roughly in a straight line, occupying a large space.
[0004] In addition, the Chinese patent document with application number 201822222913.4 discloses a clamping mechanism for opening welding, including a support seat, a cylinder, an upper pressure arm, a lower pressure arm and a connecting rod; the cylinder is fixed on the support seat, the upper pressure arm is fixed on the cylinder, the lower pressure arm is hinged on the support seat, one end of the connecting rod is hingedly connected to the upper pressure arm, and the other end of the connecting rod is hingedly connected to the lower pressure arm. Although this patent document also realizes that a cylinder drives the upper pressure arm and the lower pressure arm to open or close at the same time, it is impossible to achieve the angle control of the opening clamp, and the cylinder body of the cylinder is fixed, the number of parts is large, and the structure is relatively complex.
[0005] Therefore, the defects are very obvious and a solution is urgently needed. Utility Model Content
[0006] In order to solve the above technical problems, the purpose of the utility model is to provide a simple clamp.
[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0008] A simple clamp comprises a fixed seat, a first clamping arm, a second clamping arm, a connecting rod and a cylinder, one end of the connecting rod is fixedly connected to the middle part of the first clamping arm, the other end of the connecting rod and the middle part of the second clamping arm are coaxially hinged with the fixed seat via a hinge shaft, the first clamping arm and the second clamping arm are respectively arranged at an angle to the cylinder, one end of the first clamping arm is hinged to the cylinder body of the cylinder, one end of the second clamping arm is hinged to the piston rod of the cylinder, the other end of the first clamping arm and the other end of the second clamping arm are both equipped with clamping blocks, the clamping block of the first clamping arm and the clamping block of the second clamping arm are arranged opposite to each other, the fixed seat is equipped with a first angle limiter, the middle part of the first clamping arm is equipped with a second angle limiter for interfering with the first angle limiter, and an accommodating space is formed between the first clamping arm, the second clamping arm and the two clamping blocks.
[0009] Furthermore, the first angle limiting member is an adjusting bolt, and the adjusting bolt is threadedly connected to the fixing seat.
[0010] Furthermore, the fixed seat is equipped with a limit block, and the middle part of the first clamping arm and the middle part of the second clamping arm are both equipped with anti-collision buffer blocks, which are used to interfere with the limit block. The anti-collision buffer block of the first clamping arm and the anti-collision buffer block of the second clamping arm are respectively located on both sides of the limit block.
[0011] Furthermore, a buffer pad is arranged between the first clamping arm and the clamping block.
[0012] Furthermore, a buffer pad is provided between the second clamping arm and the clamping block.
[0013] The beneficial effects of the utility model are as follows: in practical application, when the piston rod of the cylinder is in an extended state, the clamping block of the first clamping arm and the clamping block of the second clamping arm are in a clamped state, a containing space is formed between the first clamping arm, the second clamping arm and the two clamping blocks, and the cylinder and the first clamping arm or / and the second clamping arm are roughly vertically arranged; when the piston rod of the cylinder is in a contracted state, the first angle limiter contacts the second angle limiter, the first clamping arm and the second clamping arm are in an open state, and the clamping block of the first clamping arm and the clamping block of the second clamping arm are in an open state. When the utility model is in a clamped state, the two clamping blocks clamp the middle part of the workpiece, a part of the workpiece is in the containing space, and the other part of the workpiece is outside the containing space. In the process of switching from the closed clamping state to the open clamping state of the utility model, the piston rod of the cylinder contracts, and while the piston rod of the cylinder pulls the second clamping arm to rotate, the cylinder body of the cylinder swings and pulls the first clamping arm to rotate, so that the first clamping arm and the second clamping arm are unfolded until the first angle limiter contacts the second angle limiter to limit the opening angle of the first clamping arm and the second clamping arm, thereby improving the stability of the opening clamping. The utility model has a simple structure, low cost, stable opening and closing, and one cylinder can drive the first clamping arm and the second clamping arm to open or close at the same time. Since the first clamping arm and the second clamping arm are both arranged at an angle with the cylinder, the space occupied is small. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model in a clamping state.
[0015] Figure 2 It is a three-dimensional structural schematic diagram of the utility model in a clamped state from another viewing angle.
[0016] Figure 3 It is a three-dimensional structural schematic diagram of the utility model in an open clamping state.
[0017] Description of reference numerals:
[0018] 1. Fixed seat; 2. First clamping arm; 3. Second clamping arm; 4. Connecting rod; 5. Cylinder; 6. Articulated shaft; 7. Clamping block; 8. First angle limiter; 9. Second angle limiter; 10. Accommodating space; 11. Limiting block; 12. Anti-collision buffer block; 13. Buffer pad. DETAILED DESCRIPTION
[0019] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with embodiments and drawings. The contents mentioned in the implementation modes are not intended to limit the present invention.
[0020] like Figures 1 to 3As shown, the utility model provides a simple clamp, which includes a fixed seat 1, a first clamping arm 2, a second clamping arm 3, a connecting rod 4 and a cylinder 5. One end of the connecting rod 4 is fixedly connected to the middle part of the first clamping arm 2, and the other end of the connecting rod 4 and the middle part of the second clamping arm 3 are coaxially hinged with the fixed seat 1 via a hinge shaft 6. The first clamping arm 2 and the second clamping arm 3 are respectively arranged at an angle to the cylinder 5. One end of the first clamping arm 2 is hinged to the cylinder body of the cylinder 5, and the second clamping arm 3 One end of the first clamping arm 2 is hinged to the piston rod of the cylinder 5, and the other end of the first clamping arm 2 and the other end of the second clamping arm 3 are both equipped with clamping blocks 7, the clamping block 7 of the first clamping arm 2 is arranged opposite to the clamping block 7 of the second clamping arm 3, the fixed seat 1 is equipped with a first angle limiter 8, and the middle part of the first clamping arm 2 is equipped with a second angle limiter 9 for contacting with the first angle limiter 8, and an accommodating space 10 is formed between the first clamping arm 2, the second clamping arm 3 and the two clamping blocks 7.
[0021] In actual application, when the piston rod of the cylinder 5 is in an extended state, the clamping block 7 of the first clamping arm 2 and the clamping block 7 of the second clamping arm 3 are in a clamped state, and an accommodating space 10 is formed between the first clamping arm 2, the second clamping arm 3 and the two clamping blocks 7, and the cylinder 5 and the first clamping arm 2 or / and the second clamping arm 3 are roughly vertically arranged; when the piston rod of the cylinder 5 is in a contracted state, the first angle limiter 8 and the second angle limiter 9 are in conflict, the first clamping arm 2 and the second clamping arm 3 are in an open state, and the clamping block 7 of the first clamping arm 2 and the clamping block 7 of the second clamping arm 3 are in an open state. When the utility model is in a clamped state, the two clamping blocks 7 clamp the middle part of the workpiece, a part of the workpiece is in the accommodating space 10, and the other part of the workpiece is outside the accommodating space 10. In the process of switching from the closed clamping state to the open clamping state of the utility model, the piston rod of the cylinder 5 contracts, and while the piston rod of the cylinder 5 pulls the second clamping arm 3 to rotate, the cylinder body of the cylinder 5 swings and pulls the first clamping arm 2 to rotate, so that the first clamping arm 2 and the second clamping arm 3 are unfolded until the first angle limiter 8 and the second angle limiter 9 collide with each other to limit the opening angle of the first clamping arm 2 and the second clamping arm 3. The opening angle is stable, and the stability of the opening is improved. The utility model has a simple structure, low cost, and stable opening and closing. One cylinder 5 can drive the first clamping arm 2 and the second clamping arm 3 to open or close at the same time, and because the first clamping arm 2 and the second clamping arm 3 are both arranged at an angle with the cylinder 5, the space occupied is small.
[0022] In this embodiment, the first angle limiter 8 is an adjusting bolt, which is threadedly connected to the fixing seat 1. In practical applications, the effective length of the adjusting bolt is adjusted by screwing the adjusting bolt. Due to the different effective lengths of the adjusting bolt, the time nodes at which the adjusting bolt and the second angle limiter 9 collide with each other are different, so the opening angles of the first clamping arm 2 and the second clamping arm 3 are also different, so that the angle of the opening can be adjusted to meet the needs of clamping workpieces of different specifications.
[0023] In this embodiment, the fixing seat 1 is equipped with a limit block 11, and the middle part of the first clamping arm 2 and the middle part of the second clamping arm 3 are both equipped with an anti-collision buffer block 12, which is used to contact with the limit block 11. The anti-collision buffer block 12 of the first clamping arm 2 and the anti-collision buffer block 12 of the second clamping arm 3 are respectively located on both sides of the limit block 11. When the first clamping arm 2 and the second clamping arm 3 are clamped together, the two anti-collision buffer blocks 12 contact with the limit block 11 to play a role of buffering and anti-collision, avoiding hard impact and collision between the two clamping blocks 7, and also avoiding the two clamping parts from clamping the workpiece. Preferably, the anti-collision buffer block 12 can be a rubber block.
[0024] In this embodiment, a buffer pad 13 is provided between the first clamping arm 2 and the clamping block 7; a buffer pad 13 is provided between the second clamping arm 3 and the clamping block 7. In practical applications, when the two clamping blocks 7 clamp the workpiece, the buffer pad 13 plays a buffering role, and the buffering effect is better, further avoiding the workpiece from being clamped. Specifically, the buffer pad 13 can be a rubber pad.
[0025] All technical features in this embodiment can be freely combined according to actual needs.
[0026] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.
Claims
1. A simple clamp, characterized in that: The invention comprises a fixed seat (1), a first clamping arm (2), a second clamping arm (3), a connecting rod (4) and a cylinder (5); one end of the connecting rod (4) is fixedly connected to the middle part of the first clamping arm (2); the other end of the connecting rod (4) and the middle part of the second clamping arm (3) are coaxially hinged with the fixed seat (1) via a hinge shaft (6); the first clamping arm (2) and the second clamping arm (3) are respectively arranged at an angle to the cylinder (5); one end of the first clamping arm (2) is hinged to the cylinder body of the cylinder (5); one end of the second clamping arm (3) is hinged to the cylinder body of the cylinder (5); The piston rod is hinged, and the other end of the first clamping arm (2) and the other end of the second clamping arm (3) are both provided with a clamping block (7), the clamping block (7) of the first clamping arm (2) and the clamping block (7) of the second clamping arm (3) are arranged opposite to each other, the fixing seat (1) is provided with a first angle limiter (8), and the middle part of the first clamping arm (2) is provided with a second angle limiter (9) for contacting with the first angle limiter (8), and an accommodating space (10) is formed between the first clamping arm (2), the second clamping arm (3) and the two clamping blocks (7).
2. A simple clamp according to claim 1, characterized in that: The first angle limiting member (8) is an adjusting bolt, and the adjusting bolt is threadedly connected to the fixing seat (1).
3. A simple clamp according to claim 1, characterized in that: The fixing seat (1) is provided with a limit block (11), and the middle part of the first clamping arm (2) and the middle part of the second clamping arm (3) are both provided with an anti-collision buffer block (12), the anti-collision buffer block (12) is used to abut against the limit block (11), and the anti-collision buffer block (12) of the first clamping arm (2) and the anti-collision buffer block (12) of the second clamping arm (3) are respectively located on both sides of the limit block (11).
4. A simple clamp according to claim 1, characterized in that: A buffer pad (13) is provided between the first clamping arm (2) and the clamping block (7).
5. A simple clamp according to claim 1, characterized in that: A buffer pad (13) is provided between the second clamping arm (3) and the clamping block (7).