A bolt clamping device

Abstract

The utility model belongs to the field of bolt clamping, specifically speaking is a kind of bolt clamping device, including shell, the side of shell is slidably connected with clamping arm, the inner chamber of clamping arm is fixedly connected with bolt body, the inner chamber of shell is provided with clamping mechanism, and clamping mechanism includes hydraulic cylinder, one end of hydraulic cylinder is fixedly connected in one end of shell, one end of hydraulic cylinder is fixedly connected with hydraulic pipe, the inner chamber of hydraulic pipe is slidably connected with telescopic column, the inner wall of shell is fixedly connected with limit tube, the inner chamber of limit tube is slidably connected with sliding block, the side of sliding block is fixedly connected with connecting column, the side of connecting column is fixedly connected in the clamping arm, the inner chamber of hydraulic cylinder is provided with transmission mechanism, along with modern industry to the precision requirement constantly increasing;The utility model passes through clamping mechanism, avoids traditional bolt clamping device to be difficult to adjust clamping range, and the adaptability of different specifications bolt is poor, leads to needing frequent manual replacement tool and adjustment parameter, influences flexible production.

Description

Technical Field

[0001] This utility model relates to the field of bolt clamping, specifically a bolt clamping device. Background Technology

[0002] A bolt clamping device is a mechanical tool or equipment used to fasten, fix, or connect bolts, screws, or nuts. The development of bolt clamping devices is closely related to the progress of industrial manufacturing and assembly technology. They are widely used in industrial assembly, machining, building installation, and other fields. By applying a controllable clamping force, they ensure that the bolt connection achieves the required fastening effect, thereby guaranteeing the stability, sealing, or load-bearing capacity of the structure.

[0003] As modern industry continues to demand higher precision, efficiency, safety, and automation, traditional bolt tightening, which mainly relies on manual operation, can no longer meet the needs. Furthermore, traditional bolt clamping devices are difficult to adjust the clamping range and have poor adaptability to different bolt specifications, resulting in frequent manual tool changes and parameter adjustments, which affects flexible production. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, traditional bolt clamping devices are difficult to adjust the clamping range and have poor adaptability to bolts of different specifications, resulting in the need for frequent manual tool changes and parameter adjustments, which affects flexible production. This utility model proposes a bolt clamping device.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a bolt clamping device, including a housing, a clamping arm slidably connected to one side of the housing, a bolt body fixedly connected to the inner cavity of the clamping arm, and a clamping mechanism provided in the inner cavity of the housing;

[0006] The clamping mechanism includes a hydraulic cylinder, one end of which is fixedly connected to one end of the outer shell. A hydraulic pipe is fixedly connected to one end of the hydraulic cylinder. A telescopic column is slidably connected to the inner cavity of the hydraulic pipe. A limit tube is fixedly connected to the inner wall of the outer shell. A slider is slidably connected to the inner cavity of the limit tube. A connecting column is fixedly connected to one side of the slider. One end of the connecting column is fixedly connected to one side of the clamping arm. A transmission mechanism is provided in the inner cavity of the hydraulic cylinder.

[0007] Preferably, the transmission mechanism includes a hydraulic plate, the surface of which is slidably connected to the inner cavity of the hydraulic cylinder, and a movable column is fixedly connected to one side of the hydraulic plate, the surface of which is slidably connected to the inner cavity of the hydraulic cylinder.

[0008] Preferably, a telescopic damping rod is fixedly connected to one side of the slider, one end of the telescopic damping rod is fixedly connected to the inner wall of the housing, and a first spring is sleeved on the surface of the telescopic damping rod. One end of the first spring is fixedly connected to one side of the slider, and the other end of the first spring is fixedly connected to the inner wall of the housing.

[0009] Preferably, the inner wall of the hydraulic pipe is provided with a groove, and a limit block is fixedly connected to the surface of the telescopic column, with one side of the limit block slidably connected to the inner wall of the groove.

[0010] Preferably, a fixed handle is fixedly connected to one side of the hydraulic cylinder, a rotating shaft is fixedly connected to the inner wall of the fixed handle, and a rotating handle is rotatably connected to the surface of the rotating shaft.

[0011] Preferably, a through groove is provided on one side of the rotating handle, the inner wall of the through groove is slidably connected to the surface of the movable column, and a retaining ring is fixedly connected to the surface of the movable column.

[0012] Preferably, a second spring is fixedly connected to one side of the fixed handle, one end of the second spring is fixedly connected to one side of the rotating handle, a limit post is fixedly connected to the inner cavity of the fixed handle, and one end of the limit post is threadedly connected to a limit component.

[0013] The advantages of this utility model are:

[0014] This invention features a clamping mechanism. The telescopic column moves along the hydraulic pipe towards the slider, causing it to contact the slider and push it open. The slider then moves towards the edge of the outer shell under the control of the limiting tube. This causes the slider to move the connecting column fixedly connected to one side, which in turn moves the clamping arm fixedly connected to one end, opening up to accommodate bolts. This solves the problems of traditional bolt clamping devices, such as difficulty in adjusting the clamping range, poor adaptability to different bolt specifications, frequent manual tool changes and parameter adjustments, and impact on flexible production. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional schematic diagram of the entire utility model;

[0017] Figure 2 This is a three-dimensional schematic diagram of the interior of this utility model;

[0018] Figure 3 This is a three-dimensional schematic diagram of the clamping mechanism of this utility model;

[0019] Figure 4 This is a three-dimensional schematic diagram of the first spring of this utility model;

[0020] Figure 5 This is a three-dimensional schematic diagram of the transmission mechanism of this utility model.

[0021] In the diagram: 1. Outer shell; 2. Clamping arm; 3. Clamping mechanism; 301. Hydraulic cylinder; 302. Hydraulic pipe; 303. Telescopic column; 304. Limiting tube; 305. Slider; 306. Connecting column; 4. Transmission mechanism; 401. Hydraulic plate; 402. Movable column; 5. Telescopic damping rod; 6. First spring; 7. Slide groove; 8. Limiting block; 9. Fixed handle; 10. Rotating shaft; 11. Rotating handle; 12. Through groove; 13. Snap ring; 14. Second spring; 15. Limiting column; 16. Limiting component; 17. Bolt body. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0023] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0024] This application discloses a bolt clamping device. (Refer to...) Figures 1 to 3 A bolt clamping device includes a housing 1, a clamping arm 2 slidably connected to one side of the housing 1, a bolt body 17 fixedly connected to the inner cavity of the clamping arm 2, and a clamping mechanism 3 provided in the inner cavity of the housing 1.

[0025] The clamping mechanism 3 includes a hydraulic cylinder 301, one end of which is fixedly connected to one end of the outer shell 1. A hydraulic pipe 302 is fixedly connected to one end of the hydraulic cylinder 301. A telescopic column 303 is slidably connected to the inner cavity of the hydraulic pipe 302. A limiting pipe 304 is fixedly connected to the inner wall of the outer shell 1. A slider 305 is slidably connected to the inner cavity of the limiting pipe 304. A connecting column 306 is fixedly connected to one side of the slider 305. One end of the connecting column 306 is fixedly connected to one side of the clamping arm 2. A transmission mechanism 4 is provided in the inner cavity of the hydraulic cylinder 301. By setting the clamping mechanism 3, the telescopic column 303 moves along the hydraulic pipe 302 toward the slider 305, so that the telescopic column 303 contacts the slider 305 and pushes the slider 305 away. The slider 305 moves toward the edge of the outer shell 1 under the limitation of the limiting pipe 304. Thus, the slider 305 drives the connecting column 306 fixedly connected to one side to move, and the connecting column 306 drives the clamping arm 2 fixedly connected to one end to move and open.

[0026] Reference Figure 5 The transmission mechanism 4 includes a hydraulic plate 401, the surface of which is slidably connected to the inner cavity of the hydraulic cylinder 301. A movable column 402 is fixedly connected to one side of the hydraulic plate 401, and the surface of the movable column 402 is slidably connected to the inner cavity of the hydraulic cylinder 301. By setting the transmission mechanism 4, the hydraulic plate 401 divides the inner cavity of the hydraulic cylinder 301 into a liquid-free space and a liquid-filled space. The liquid-filled space is filled with hydraulic oil. When the movable column 402 moves forward, it pushes the hydraulic plate 401 to move, making the liquid-filled space smaller. As a result, the hydraulic oil is squeezed into the hydraulic pipe 302 and pushes the telescopic column 303 to move outward. Since the hydraulic oil is a liquid, it has a certain deformation capacity and transmission delay. It can be used as an intermediate medium for transmission, has buffering capacity, and has less friction on the device.

[0027] Reference Figure 4 A telescopic damping rod 5 is fixedly connected to one side of the slider 305. One end of the telescopic damping rod 5 is fixedly connected to the inner wall of the outer shell 1. A first spring 6 is sleeved on the surface of the telescopic damping rod 5. One end of the first spring 6 is fixedly connected to one side of the slider 305, and the other end of the first spring 6 is fixedly connected to the inner wall of the outer shell 1. By setting the first spring 6, when the telescopic column 303 pushes the slider 305 away, the slider 305 moves and squeezes the first spring 6, causing the first spring 6 to accumulate elastic potential energy. When the telescopic column 303 loses the force that pushes it to move, the first spring 6 releases elastic potential energy, pushing the slider 305 to move and reset it. Thus, during the reset process of the slider 305, the clamping arm 2 moves, thereby positioning the bolt body 17.

[0028] Reference Figure 3The inner wall of the hydraulic pipe 302 is provided with a sliding groove 7. A limiting block 8 is fixedly connected to the surface of the telescopic column 303. One side of the limiting block 8 is slidably connected to the inner wall of the sliding groove 7. By setting the sliding groove 7 and the limiting block 8, since one side of the limiting block 8 is slidably connected to the inner wall of the sliding groove 7, the sliding groove 7 can limit the telescopic column 303 fixedly connected to the limiting block 8, so that the telescopic column 303 is prevented from rotating and causing oil leakage without affecting its axial movement, thus improving the structural stability.

[0029] Reference Figure 5 A fixed handle 9 is fixedly connected to one side of the hydraulic cylinder 301. A rotating shaft 10 is fixedly connected to the inner wall of the fixed handle 9. A rotating handle 11 is rotatably connected to the surface of the rotating shaft 10. By setting the fixed handle 9 and the rotating handle 11, the operator can swing the hand grip end of the rotating handle 11 by gripping the fixed handle 9 and the rotating handle 11, thereby causing the other end of the rotating handle 11 to swing.

[0030] Reference Figure 1 A through groove 12 is provided on one side of the rotating handle 11. The inner wall of the through groove 12 is slidably connected to the surface of the movable column 402. A retaining ring 13 is fixedly connected to the surface of the movable column 402. By setting the retaining ring 13, as the hand grip end of the rotating handle 11 swings, the other end of the rotating handle 11 contacts and drives the retaining ring 13 to move when it swings, thereby driving the movable column 402 fixedly connected to it to move.

[0031] Reference Figure 5 A second spring 14 is fixedly connected to one side of the fixed handle 9. One end of the second spring 14 is fixedly connected to one side of the rotating handle 11. A limit post 15 is fixedly connected to the inner cavity of the fixed handle 9. One end of the limit post 15 is threadedly connected to a limit member 16. By setting the limit post 15 and the limit member 16, when the clamping arm 2 positions the bolt body 17, the angle of the rotating handle 11 is determined without external force. The limit post 15 is inserted into the fixed handle 9 and one end of the limit post 15 abuts against one side of the rotating handle 11. Then, when the limit member 16 is tightened, the limit post 15 cannot move axially, thereby determining the angle of the rotating handle 11 and clamping the bolt body 17. The second spring 14 can assist the rotating handle 11 in resetting.

[0032] Working principle: After removing the limiting component 16 and the limiting post 15, the operator can grip the fixed handle 9 and rotate the handle 11, causing the hand grip of the rotating handle 11 to swing, thus causing the other end of the rotating handle 11 to swing. When the other end of the rotating handle 11 swings, it contacts and drives the retaining ring 13 to move. The retaining ring 13 then drives the movable post 402, which is fixedly connected to it, to move. The movable post 402 moves forward, pushing the hydraulic plate 401 to move, reducing the hydraulic space. This forces the hydraulic oil into the hydraulic pipe 302 and pushes the telescopic post 303 along the hydraulic pipe 302 towards the slider 305. The telescopic post 303 contacts the slider 305 and pushes the slider 305 away, causing the slider 305 to move towards the outer shell under the limitation of the limiting tube 304. The edge of 1 moves, thereby the slider 305 drives the connecting post 306 fixedly connected to one side to move, and the connecting post 306 drives the clamping arm 2 fixedly connected to one end to move and open. Then the rotating handle 11 is released, the telescopic post 303 loses the force to push it to move, the first spring 6 releases elastic potential energy, pushes the slider 305 to move and reset it. Thus, during the reset process of the slider 305, it drives the clamping arm 2 to move and thus positions the bolt body 17. The limiting post 15 is inserted into the fixed handle 9 and one end of the limiting post 15 abuts against one side of the rotating handle 11. Then, when the limiting member 16 is tightened, the limiting post 15 cannot move axially, thereby determining the angle of the rotating handle 11 and realizing the clamping of the bolt body 17.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A bolt clamping device, characterized in that: Includes a housing (1), a clamping arm (2) is slidably connected to one side of the housing (1), a bolt body (17) is fixedly connected to the inner cavity of the clamping arm (2), and a clamping mechanism (3) is provided in the inner cavity of the housing (1). The clamping mechanism (3) includes a hydraulic cylinder (301), one end of which is fixedly connected to one end of the outer shell (1), and one end of which is fixedly connected to a hydraulic pipe (302). The inner cavity of the hydraulic pipe (302) is slidably connected to a telescopic column (303). The inner wall of the outer shell (1) is fixedly connected to a limiting tube (304). The inner cavity of the limiting tube (304) is slidably connected to a slider (305). One side of the slider (305) is fixedly connected to a connecting column (306). One end of the connecting column (306) is fixedly connected to one side of the clamping arm (2). The inner cavity of the hydraulic cylinder (301) is provided with a transmission mechanism (4).

2. The bolt clamping device according to claim 1, characterized in that: The transmission mechanism (4) includes a hydraulic plate (401), the surface of which is slidably connected to the inner cavity of the hydraulic cylinder (301), and a movable column (402) is fixedly connected to one side of the hydraulic plate (401), the surface of which is slidably connected to the inner cavity of the hydraulic cylinder (301).

3. The bolt clamping device according to claim 1, characterized in that: A telescopic damping rod (5) is fixedly connected to one side of the slider (305). One end of the telescopic damping rod (5) is fixedly connected to the inner wall of the outer shell (1). A first spring (6) is sleeved on the surface of the telescopic damping rod (5). One end of the first spring (6) is fixedly connected to one side of the slider (305), and the other end of the first spring (6) is fixedly connected to the inner wall of the outer shell (1).

4. The bolt clamping device according to claim 1, characterized in that: The inner wall of the hydraulic pipe (302) is provided with a groove (7), and a limiting block (8) is fixedly connected to the surface of the telescopic column (303). One side of the limiting block (8) is slidably connected to the inner wall of the groove (7).

5. A bolt clamping device according to claim 1, characterized in that: A fixed handle (9) is fixedly connected to one side of the hydraulic cylinder (301), and a rotating shaft (10) is fixedly connected to the inner wall of the fixed handle (9). A rotating handle (11) is rotatably connected to the surface of the rotating shaft (10).

6. A bolt clamping device according to claim 5, characterized in that: A through groove (12) is provided on one side of the rotating handle (11). The inner wall of the through groove (12) is slidably connected to the surface of the movable column (402). A retaining ring (13) is fixedly connected to the surface of the movable column (402).

7. A bolt clamping device according to claim 5, characterized in that: A second spring (14) is fixedly connected to one side of the fixed handle (9), and one end of the second spring (14) is fixedly connected to one side of the rotating handle (11). A limit post (15) is fixedly connected to the inner cavity of the fixed handle (9), and one end of the limit post (15) is threadedly connected to a limit member (16).

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