Three-jaw clamp device

Abstract

The utility model relates to the technical field of clamp equipment, and discloses a three-jaw clamp device which comprises a pneumatic clamp, an air inlet connecting pipe, an air outlet connecting pipe and a fixing part. When the three-jaw clamp works, the air pipe is in butt joint with the air inlet connecting pipe and the air outlet connecting pipe, then the auxiliary clamping plate is matched with the hinge to be movably closed with the main clamping plate, then the threaded crank is matched with the threaded screwing sleeve to be screwed into the threaded fixing hole to fix the auxiliary clamping plate, and the purpose of fixing the closed auxiliary clamping plate is achieved; the closed auxiliary clamping plate can provide a stable butt joint and fixing function for the butt joint pipe, stable air pipe butt joint can avoid work interruption of the clamp caused by air pipe falling or air leakage, continuous production process is guaranteed, downtime is shortened, the equipment utilization rate and production efficiency are improved, the clamp can provide stable clamping force, and the production efficiency is improved. In the machining process, the position of the workpiece cannot deviate due to the change of clamping force, so that the machining size precision and the surface quality are guaranteed, and the product percent of pass is increased.

Description

Technical Field

[0001] This utility model relates to the field of clamping equipment technology, specifically a three-jaw clamping device. Background Technology

[0002] A three-jaw chuck, also known as a three-jaw self-centering chuck, determines the rotation center of the workpiece by the circumference of the workpiece clamping part. It consists of a chuck body, movable jaws, and a jaw drive mechanism. The guide parts of the three jaws on the chuck have threads that mesh with the flat threads on the back of the disc bevel gear. By turning the small bevel gear with a wrench, the disc gear rotates, causing the three jaws to move closer to or out of the center. It can clamp workpieces of different diameters. By replacing the jaws with reverse jaws, larger diameter workpieces can be installed.

[0003] The applicant believes that:

[0004] When three-jaw chucks are in operation, they often cannot reliably connect the air hoses. Unstable air hose connection causes air pressure fluctuations, resulting in inconsistent clamping force. During machining, the workpiece is subjected to unstable clamping force, which can easily cause positional shifts, leading to dimensional deviations, reduced machining accuracy, and impacting product quality. Furthermore, unstable air hose connection can easily cause the air hose to detach or leak, causing the chuck to stop working. Operators need to frequently pause work for reconnection or repair, increasing auxiliary time, reducing the proportion of actual machining or operation time, and slowing down the overall work progress. Therefore, improvements are needed. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a three-jaw clamping device that can stably connect the three-jaw clamping air tube. This solves the problem that unstable air tube connection can cause air pressure fluctuations, resulting in dimensional deviations in processing, reduced processing accuracy, and impact on product quality.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a three-jaw clamp device, comprising a pneumatic clamp, an air inlet pipe, an air outlet pipe, and a fixing component. The air inlet pipe is installed on the lower side of the pneumatic clamp, and the air outlet pipe is installed on one side of the air inlet pipe located on the lower side of the pneumatic clamp. A fixing component is provided on the outer side of the air inlet pipe and the air outlet pipe. The fixing component includes a bracket, a main clamping plate, a hinge, a secondary clamping plate, a sealing strip, a main connecting block, a threaded sleeve, a threaded crank handle, a secondary connecting block, and a threaded fixing hole.

[0009] A main clamping plate is welded to the top of the bracket. A hinge is fixedly connected to one side of the main clamping plate, and a secondary clamping plate is movably connected to the other side of the hinge. Sealing strips are fixedly installed on the inner walls of the main clamping plate and the secondary clamping plate. A main connecting block is welded to the other side of the secondary clamping plate. A threaded sleeve is threaded through the inside of the main connecting block. A threaded crank is threadedly connected inside the threaded sleeve. A secondary connecting block is welded to the other side of the main clamping plate. A threaded fixing hole is opened inside the secondary connecting block.

[0010] Furthermore, a bracket is welded to the lower part of the pneumatic clamp.

[0011] Furthermore, the pneumatic clamp has a clamping block installed inside, and a lifting component is provided inside the pneumatic clamp.

[0012] Furthermore, the lifting component includes a lifting sleeve, a hydraulic rod, a lifting plate, an anti-slip plate, a slider, and a slide rail.

[0013] Furthermore, a lifting sleeve is connected through the interior of the pneumatic clamp, and a hydraulic rod is fixedly connected inside the lifting sleeve.

[0014] Furthermore, a lifting plate is fixedly installed at the upper end of the hydraulic rod, and multiple anti-slip plates are fixedly installed at equal intervals inside the lifting plate.

[0015] Furthermore, sliders are welded to all four sides of the lifting plate, and slide rails are connected through the outer side of the sliders to the inner wall of the lifting sleeve.

[0016] Furthermore, a base is welded to the bottom of the pneumatic clamp, and mounting holes are provided at the four corners of the base.

[0017] Compared with the prior art, the present invention provides a three-jaw clamping device, which has the following advantages:

[0018] 1. When this three-jaw clamp is in operation, the air pipe is connected to the air inlet and outlet pipes. Then, the auxiliary clamping plate is closed with the hinge and the main clamping plate. Finally, the threaded handle and threaded sleeve are screwed into the threaded fixing hole to fix the auxiliary clamping plate. This provides a fixed purpose for the closed auxiliary clamping plate, which provides a stable connection and fixation function for the connecting pipes. Stable air pipe connection can avoid the interruption of clamping operation due to air pipe detachment or air leakage, ensuring continuous production, reducing downtime, improving equipment utilization and production efficiency, and enabling the clamp to provide stable clamping force. The workpiece will not shift position due to changes in clamping force during processing, thereby ensuring the machining dimensional accuracy and surface quality, and improving the product qualification rate.

[0019] 2. When the three-jaw clamp is working, the lifting plate is pushed by the hydraulic rod, which can realize the purpose of automatic lifting and lowering of the lifting plate. When the lifting plate is raised and lowered, the sliders around the lifting plate will slide on the slide rail to limit the movement, thus providing an automatic lifting function for the placed object. It can quickly grab and lift the object, making it convenient to pick up the object. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the three-jaw clamp device provided in this embodiment of the utility model;

[0021] Figure 2 This is a schematic diagram of the open structure of the fixing component of the three-jaw clamp device provided in this embodiment of the utility model;

[0022] Figure 3 This is a schematic diagram of the closed structure of the fixing component of the three-jaw clamp device provided in this embodiment of the utility model;

[0023] Figure 4 This is a schematic diagram of the lifting component structure of the three-jaw clamp device provided in this embodiment of the utility model.

[0024] The components include: 1. Pneumatic clamp; 2. Clamping block; 3. Air inlet pipe; 4. Air outlet pipe; 5. Fixing component; 501. Bracket; 502. Main clamping plate; 503. Hinge; 504. Secondary clamping plate; 505. Sealing strip; 506. Main connecting block; 507. Threaded sleeve; 508. Threaded crank handle; 509. Secondary connecting block; 510. Threaded fixing hole; 6. Lifting component; 601. Lifting sleeve; 602. Hydraulic rod; 603. Lifting plate; 604. Anti-slip plate; 605. Slider; 606. Slide rail; 7. Base; 8. Mounting hole. Detailed Implementation

[0025] 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 merely 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1 to 4This utility model provides a technical solution: a three-jaw clamp device, including a pneumatic clamp 1, an air inlet pipe 3, an air outlet pipe 4, and a fixing component 5. The air inlet pipe 3 is installed on the lower side of the pneumatic clamp 1, and the air outlet pipe 4 is installed on the lower side of the air inlet pipe 3. The fixing component 5 is provided on the outer side of the air inlet pipe 3 and the air outlet pipe 4. A clamping block 2 is installed inside the pneumatic clamp 1. A lifting component 6 is provided inside the pneumatic clamp 1. A base 7 is welded to the lower part of the pneumatic clamp 1. Mounting holes 8 are opened at the four corners of the interior of the base 7.

[0027] Specifically: When the three-jaw clamp is working, first place the pneumatic clamp 1 in a suitable position, then screw the fixing bolt into the mounting hole 8 of the base 7 to install and fix the pneumatic clamp 1. Then connect the air pipe to the air inlet pipe 3 and the air outlet pipe 4, and then fix the air pipe by the fixing component 5. Then place the object to be clamped on top of the pneumatic clamp 1, and then use the clamping block 2 to clamp and fix the object. After fixing, the object can be lifted by the lifting component 6 to facilitate the picking and putting of the object.

[0028] Please see Figure 1 , Figure 2 and Figure 3 A three-jaw clamping device, wherein the fixing component 5 includes a bracket 501, a main clamping plate 502, a hinge 503, a secondary clamping plate 504, a sealing strip 505, a main connecting block 506, a threaded sleeve 507, a threaded crank 508, a secondary connecting block 509, and a threaded fixing hole 510. The main clamping plate 502 is welded to the top of the bracket 501. The hinge 503 is fixedly connected to one side of the main clamping plate 502, and the secondary clamping plate 504 is movably connected to the other side of the hinge 503. A sealing strip 505 is fixedly installed on the inner wall of the auxiliary clamping plate 504 and the main connecting block 506 is welded to the other side of the auxiliary clamping plate 504. A threaded sleeve 507 is connected through the main connecting block 506. A threaded crank 508 is threadedly connected inside the threaded sleeve 507. A secondary connecting block 509 is welded to the other side of the main clamping plate 502. A threaded fixing hole 510 is opened inside the secondary connecting block 509. A bracket 501 is welded to the bottom of the pneumatic clamp 1.

[0029] Specifically, when fixing the air pipe to the fixed component 5, the air pipe is first connected to the inlet pipe 3 and the outlet pipe 4. Then, the auxiliary clamping plate 504 is closed with the hinge 503 and the main clamping plate 502. Next, the threaded crank 508 is screwed into the threaded fixing hole 510 with the threaded sleeve 507 to fix the auxiliary clamping plate 504. This provides a fixed purpose for the closed auxiliary clamping plate 504. The closed auxiliary clamping plate 504 can provide a stable connection and fixation function for the connecting pipe. Stable air pipe connection can avoid the interruption of the fixture work due to air pipe falling off or air leakage, ensure the continuous production process, reduce downtime, improve equipment utilization and production efficiency, and enable the fixture to provide a stable clamping force. The workpiece will not shift position due to changes in clamping force during processing, thereby ensuring the processing dimensional accuracy and surface quality and improving the product qualification rate.

[0030] Please see Figure 1 and Figure 4 A three-jaw clamping device, the lifting component 6 includes a lifting sleeve 601, a hydraulic rod 602, a lifting plate 603, an anti-slip plate 604, a slider 605, and a slide rail 606. The lifting sleeve 601 is connected through the inside of the pneumatic clamp 1. The hydraulic rod 602 is fixedly connected inside the lifting sleeve 601. The lifting plate 603 is fixedly installed at the upper end of the hydraulic rod 602. Multiple anti-slip plates 604 are fixedly installed at equal intervals inside the lifting plate 603. The sliders 605 are welded to all four sides of the lifting plate 603. The slide rail 606 is connected through the outer side of the slider 605 on the inner wall of the lifting sleeve 601.

[0031] Specifically: When the lifting component 6 lifts the object, the hydraulic rod 602 is activated to push the lifting plate 603, which provides the purpose of automatic lifting and lowering of the lifting plate 603. When the lifting plate 603 is lifted and lowered, the sliders 605 around the lifting plate 603 will slide and limit on the slide rail 606, thereby providing the function of automatic lifting of the placed object. The object can be quickly grabbed and lifted, which provides convenience for picking up the object.

[0032] The working principle of this utility model is as follows: When the three-jaw clamp is working, firstly, the pneumatic clamp 1 is placed in a suitable position. Then, the fixing bolts are screwed into the mounting holes 8 of the base 7 to install and fix the pneumatic clamp 1. Next, the air pipe is connected to the inlet pipe 3 and the outlet pipe 4. Then, the auxiliary clamp 504, in conjunction with the hinge 503, is moved and closed with the main clamp 502. Finally, the threaded crank 508, in conjunction with the threaded sleeve 507, is screwed into the threaded fixing hole 510 to fix the auxiliary clamp 504. This secures the closed auxiliary clamp 504, which provides stable connection and fixation for the connecting pipe. Then, the required... The object to be clamped is placed above the pneumatic clamp 1, and then clamped and fixed with the clamping block 2. After the object is processed, the hydraulic rod 602 is activated to push the lifting plate 603, which provides automatic lifting and lowering of the lifting plate 603. When the lifting plate 603 is raised and lowered, the sliders 605 around the lifting plate 603 will slide and limit on the slide rail 606, automatically lifting the placed object. It can quickly grab and lift the object, providing convenience for picking up the object. This completes the working principle and workflow of a three-jaw clamp device. All contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A three-jaw clamping device, characterized in that, The device includes a pneumatic clamp (1), an air inlet pipe (3), an air outlet pipe (4), and a fixing component (5). The air inlet pipe (3) is installed on the lower side of the pneumatic clamp (1), and the air outlet pipe (4) is installed on the lower side of the air inlet pipe (3). The fixing component (5) is provided on the outer side of the air inlet pipe (3) and the air outlet pipe (4). The fixing component (5) includes a bracket (501), a main clamping plate (502), a hinge (503), a secondary clamping plate (504), a sealing strip (505), a main connecting block (506), a threaded sleeve (507), a threaded crank handle (508), a secondary connecting block (509), and a threaded fixing hole (510). A main clamping plate (502) is welded to the top of the bracket (501). A hinge (503) is fixedly connected to one side of the main clamping plate (502). A secondary clamping plate (504) is movably connected to the other side of the hinge (503). A sealing strip (505) is fixedly installed on the inner wall of the main clamping plate (502) and the secondary clamping plate (504). A main connecting block (506) is welded to the other side of the secondary clamping plate (504). A threaded sleeve (507) is threaded through the inside of the main connecting block (506). A threaded crank handle (508) is threadedly connected inside the threaded sleeve (507). A secondary connecting block (509) is welded to the other side of the main clamping plate (502). A threaded fixing hole (510) is opened inside the secondary connecting block (509).

2. The three-jaw clamping device according to claim 1, characterized in that: A bracket (501) is welded to the bottom of the pneumatic clamp (1).

3. A three-jaw clamping device according to claim 1, characterized in that: The pneumatic clamp (1) has a clamping block (2) installed inside, and a lifting component (6) is provided inside the pneumatic clamp (1).

4. A three-jaw clamping device according to claim 3, characterized in that: The lifting component (6) includes a lifting sleeve (601), a hydraulic rod (602), a lifting plate (603), an anti-slip plate (604), a slider (605), and a slide rail (606).

5. A three-jaw clamping device according to claim 4, characterized in that: The pneumatic clamp (1) has a through-connected lifting sleeve (601), and a hydraulic rod (602) is fixedly connected inside the lifting sleeve (601).

6. A three-jaw clamping device according to claim 5, characterized in that: A lifting plate (603) is fixedly installed at the upper end of the hydraulic rod (602), and multiple anti-slip plates (604) are fixedly installed at equal intervals inside the lifting plate (603).

7. A three-jaw clamping device according to claim 6, characterized in that: The lifting plate (603) is welded to all four sides with sliders (605), and the outer side of the sliders (605) is connected to the inner wall of the lifting sleeve (601) with a slide rail (606).

8. A three-jaw clamping device according to claim 1, characterized in that: A base (7) is welded to the bottom of the pneumatic clamp (1), and mounting holes (8) are provided at the four corners of the base (7).

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