A three-jaw chuck and a welding and machining device having the same.

Abstract

This utility model relates to a three-jaw chuck and an integrated welding and machining device incorporating the same. It pertains to the field of chucks and includes a chuck body, a fixed rod, a connecting rod, and a sliding rail. The sliding rail is located on one side of the chuck body. The fixed rod is slidably connected to the sliding rail along its length. The connecting rod is threadedly connected to the end of the fixed rod furthest from the sliding rail, with the end of the connecting rod furthest from the fixed rod facing the center of the chuck body. This utility model assists in clamping workpieces with a three-jaw chuck, resulting in a more balanced and stable workpiece.

Description

Technical Field

[0001] This utility model relates to the field of chucks, and more particularly to a three-jaw chuck and a welding and machining device incorporating the same. Background Technology

[0002] The integrated melting and molding equipment is a highly efficient industrial equipment that integrates melting, conveying and molding functions. By integrating traditionally dispersed melting furnaces, holding furnaces and molding equipment into a single system, it adopts high-temperature resistant materials, intelligent temperature control and precision fluid control technology to realize the full-process automation of metal or non-metal materials from melting to molding. It is mainly used in die casting, injection molding, composite material molding and other fields.

[0003] In related technologies, the workpiece clamping device of the integrated melting and machining equipment generally consists of a chuck body, movable jaws, and jaw drive mechanism. On the underside of the jaw guide part of the chuck, there are threads that mesh with the flat threads on the back of the disc bevel gear. When the small bevel gear is rotated through the square hole with a wrench, the disc gear rotates, and the flat threads on the back simultaneously drive the jaws to move closer to or out of the center, so as to clamp workpieces of different diameters.

[0004] Regarding the aforementioned technologies, the inventors believe that traditional integrated welding and machining equipment achieves synchronous clamping through gear and rack linkage. However, with the increase in usage time, it is easily affected by transmission clearance and chuck wear during use. This reduces the synchronicity of the chuck clamping the workpiece, causing the clamping of the object to deviate and resulting in insufficient clamping stability. Utility Model Content

[0005] To address the issue of unstable object clamping caused by jaw wear in integrated welding and machining equipment over time, this invention provides a three-jaw chuck and an integrated welding and machining equipment incorporating it. The chuck body assists in clamping the object, ensuring sufficient stability in object clamping.

[0006] In a first aspect, the three-jaw chuck provided by this utility model adopts the following technical solution: A three-jaw chuck includes a chuck body, a fixed rod, a connecting rod, and a sliding rail. The sliding rail is located on one side of the chuck body. The fixed rod is slidably connected to the sliding rail along its length. The connecting rod is threadedly connected to the end of the fixed rod away from the sliding rail, and the end of the connecting rod away from the fixed rod faces the center of the chuck body.

[0007] By adopting the above technical solution, which includes a fixed rod, a connecting rod, and a sliding rail, with the fixed rod and connecting rod threaded together and the fixed rod slidably connected within the sliding rail, the extension and retraction of the connecting rod can be adjusted by rotating the connecting rod to clamp the workpiece. Furthermore, by sliding the fixed rod along the sliding rail, the extension and retraction angle of the connecting rod can be adjusted, enabling clamping of the workpiece at different angles, thus improving the stability and practicality of the three-jaw chuck.

[0008] Optionally, a support rod is fixedly connected to the fixed rod, and the end of the support rod away from the fixed rod abuts against the connecting rod.

[0009] By adopting the above technical solution, a support rod is fixedly connected to the fixed rod, and the other end of the support rod abuts against the connecting rod, so as to support the connecting rod to remain horizontal and not droop when clamping, thereby ensuring the stability of the connecting rod when clamping and improving the stability of the three-jaw chuck during operation.

[0010] Optionally, the support rod has an arc-shaped support piece with the same inner diameter as the outer diameter of the connecting rod at one end near the connecting rod, and the arc-shaped support piece abuts against the outer circumferential side wall of the connecting rod.

[0011] By adopting the above technical solution, an arc-shaped support plate with the same inner diameter as the outer diameter of the connecting rod is provided at one end of the support rod near the connecting rod, and the arc-shaped support plate abuts against the outer circumferential side wall of the connecting rod, so that the support rod provides more uniform and stable support to the connecting rod, thereby improving the stability of the three-jaw chuck during operation.

[0012] Optionally, the chuck body has a frustum groove on its side wall, the bottom of the frustum groove has a thread, the bottom wall of the sliding track has a frustum plate, the outer circumferential side wall of the frustum plate abuts against and fits against the circumferential side wall of the frustum groove, a countersunk bolt passes through the sliding track, the frustum plate has a through hole, the screw of the countersunk bolt passes through the through hole and is threaded into the frustum groove, the head of the countersunk bolt abuts against the inner circumferential side wall of the frustum plate, and the end face of the countersunk bolt away from the screw and the bottom wall of the sliding track are on the same plane.

[0013] By adopting the above technical solution, the sliding rail is connected to the truncated cone groove in the chuck body by countersunk bolts and the screw thread of the truncated cone groove. This makes the screw head of the countersunk bolt and the bottom wall of the sliding rail on the same horizontal plane, which avoids affecting the sliding of the fixing rod in the sliding rail, facilitates the installation of the sliding rail, and improves the practicality and portability of the three-jaw chuck.

[0014] Optionally, the fixing rod is fixedly connected with a bolt, and a first clearance groove is provided on the sliding track. The first clearance groove is provided along the length direction of the sliding track. The end of the bolt away from the fixing rod passes through the first clearance groove and extends out of the sliding track. The part of the bolt extending out of the sliding track is threadedly connected with a nut, and the nut abuts against the side wall of the sliding track.

[0015] By adopting the above technical solution, the fixed rod and the sliding rail are connected by bolts and nuts, so that the connecting rod always faces the center of the chuck body. The fixed rod can be slid to adjust the angle at which the connecting rod clamps the workpiece by simply loosening the nut, and the fixed rod is fixed by tightening the nut, which improves the portability and practicality of the three-jaw chuck.

[0016] Optionally, the end of the connecting rod away from the fixed rod is provided with a force-applying rod.

[0017] By adopting the above technical solution, and by providing a force-applying rod at the end of the connecting rod away from the fixed rod, the lever arm of the rotating connecting rod is extended, the force required for rotation is reduced, making it easier to use and improving the practicality of the three-jaw chuck.

[0018] Optionally, the force-applying rod is provided with an installation groove for the connecting rod to be embedded, the force-applying rod is provided with a locking rod, the bottom of the installation groove is provided with a clearance hole extending through to the side of the force-applying rod away from the connecting rod, the connecting rod is provided with a second clearance groove, the second clearance groove and the clearance hole are coaxially arranged and interconnected, the second clearance groove and the connecting rod are not coaxially arranged, and the locking rod is sequentially inserted into the clearance hole and the second clearance groove.

[0019] By adopting the above technical solution, and by providing a locking rod and a clearance hole and a second clearance groove for the locking rod to slide, when the locking rod is only inserted into the clearance hole, the force-applying rod and the connecting rod are rotatably connected. When the locking rod is sequentially inserted into the clearance hole and the second clearance groove, the force-applying rod and the connecting rod are fixedly connected. The force-applying rod can drive the connecting rod to rotate together, thus improving the practicality of the three-jaw chuck.

[0020] Optionally, the locking rod is provided with a pressing piece at the end away from the force-applying rod, and a third clearance groove is provided on the side wall of the locking rod away from the fixing rod for the pressing piece to be inserted.

[0021] By adopting the above technical solution, a pressing piece is provided at the end of the locking rod away from the force-applying rod, and a third clearance groove is opened on the side wall of the locking rod, which facilitates the pressing and use of the locking rod by the staff, and can embed the locking rod into the third clearance groove, making it more stable and improving the portability and stability of the three-jaw chuck.

[0022] Optionally, the fixed rod is provided with a limiting rod, and the end of the fixed rod near the sliding track is provided with a through hole, the limiting rod is inserted into the through hole, and the end of the force-applying rod away from the connecting rod is provided with a fourth clearance groove for the limiting rod to slide.

[0023] By adopting the above technical solution, by providing a limiting rod and a through hole on the fixed rod, and opening a fourth clearance groove on the force-applying rod, after the connecting rod completes the clamping of the workpiece, the force-applying rod can be adjusted to rotate, so that the limiting rod passes through the through hole and the fourth clearance groove in sequence, thereby fixing the force-applying rod and improving the stability of the three-jaw chuck.

[0024] Secondly, the present invention provides a welding and machining integrated device, which adopts the following technical solution: A welding and machining integrated device includes a three-jaw chuck as described above.

[0025] By adopting the above technical solution, the sliding rail is installed on the side wall of the chuck body with countersunk bolts. The connecting rod is moved by rotating the force-applying rod to assist in clamping the workpiece, making the clamping of the workpiece more stable and improving the stability of the workpiece during the processing.

[0026] In summary, this utility model has at least one of the following beneficial technical effects: The three-jaw chuck is equipped with a fixed rod, a connecting rod, and a sliding rail. The fixed rod and the connecting rod are threaded together, and the fixed rod is slidably connected within the sliding rail. The extension and retraction of the connecting rod can be adjusted by rotating the connecting rod to clamp the workpiece. Furthermore, the angle of extension and retraction of the connecting rod can be adjusted by sliding the fixed rod along the sliding rail, thereby achieving clamping of the workpiece at different angles and improving the stability and practicality of the three-jaw chuck. By providing a frustum groove in the chuck body, the sliding rail is connected to the frustum groove with countersunk bolts and threads, so that the head of the countersunk bolt is on the same horizontal plane as the bottom wall of the sliding rail. This avoids affecting the sliding of the fixing rod in the sliding rail, and facilitates the installation of the sliding rail, thus improving the practicality and portability of the three-jaw chuck. By providing a locking rod and a clearance hole and a second clearance groove for the locking rod to slide, when the locking rod is only inserted into the clearance hole, the force-applying rod and the connecting rod are rotatably connected. When the locking rod is sequentially inserted into the clearance hole and the second clearance groove, the force-applying rod and the connecting rod are fixedly connected. The force-applying rod can drive the connecting rod to rotate together, which improves the practicality of the three-jaw chuck. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of a three-jaw chuck and a welding and machining device having the same in an embodiment of this application; Figure 2 This is a schematic diagram of the structure of a three-jaw chuck in an embodiment of this application; Figure 3yes Figure 2 Enlarged view of part A in the middle; Figure 4 This is a top view of a three-jaw chuck in an embodiment of this application; Figure 5 yes Figure 2 Sectional view along the BB direction.

[0028] The parts referred to by the numbers in the above attached figures are as follows: 1. Chuck body; 11. Frustum groove; 2. Sliding track; 21. First clearance groove; 22. Countersunk bolt; 23. Frustum plate; 231. Through hole; 3. Fixing rod; 31. Bolt; 311. Nut; 32. Support rod; 321. Arc-shaped support plate; 33. Through hole; 34. Limiting rod; 4. Connecting rod; 41. Second clearance groove; 5. Force application rod; 51. Mounting groove; 511. Clearance hole; 52. Locking rod; 521. Pressing piece; 522. Third clearance groove; 5221. Arc-shaped groove; 53. Fourth clearance groove. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0030] This utility model discloses a welding and machining integrated device. (Refer to...) Figure 1 The integrated melting and car assembly equipment includes a three-jaw chuck.

[0031] Reference Figure 2 and Figure 3 The three-jaw chuck includes a chuck body 1, a sliding rail 2, a fixed rod 3, a connecting rod 4, and a force-applying rod 5. The sliding rail 2 is mounted on the side wall of the chuck body 1. The fixed rod 3 is slidably connected within the sliding rail 2 and can slide freely along its length. The connecting rod 4 is threadedly connected to the fixed rod 3 at the end furthest from the sliding rail 2. Rotating the connecting rod 4 moves it towards the center of the chuck body 1 to assist the jaws in clamping the workpiece. The force-applying rod 5 is mounted on the end of the connecting rod 4 furthest from the center of the chuck body 1. It can rotate the connecting rod 4, extending the lever arm and reducing the force required to rotate the connecting rod 4.

[0032] Reference Figure 2 and Figure 3A bolt 31 is fixedly connected to the side wall of the fixed rod 3 on the side away from the center of the chuck body 1. A first clearance groove 21 is provided on the side wall of the sliding rail 2 on the side away from the center of the chuck body 1. The first clearance groove 21 is set along the length direction of the side wall of the sliding rail 2. The bolt 31 passes through the first clearance groove 21 and extends out of the side wall of the sliding rail 2. A nut 311 is threadedly connected to the part of the bolt 31 that extends out of the side wall of the sliding rail 2, and the nut 311 abuts against the outer side wall of the sliding rail 2 on the side away from the center of the chuck body 1. When the nut 311 is loosened from the bolt 31 in the direction away from the outer side wall of the sliding rail 2, the fixed rod 3 can slide freely in the first clearance groove 21 of the sliding rail 2 through the bolt 31 to adjust the angle of the connecting rod 4 clamping the workpiece. When the nut 311 is tightened from the bolt 31 in the direction close to the outer side wall of the sliding rail 2, the fixed rod 3 is fixed in the sliding rail 2 by the cooperation of the bolt 31 and the nut 311.

[0033] Reference Figure 2 and Figure 3 A support rod 32 is installed on the fixed rod 3. An arc-shaped support plate 321 is also installed at the end of the support rod 32 away from the fixed rod 3. The inner diameter of the arc-shaped support plate 321 is the same as the outer diameter of the connecting rod 4. The arc-shaped support plate 321 abuts against the outer circumferential side wall of the connecting rod 4 to support and guide the movement of the connecting rod 4, so that the connecting rod 4 always maintains horizontal movement.

[0034] Reference Figure 4 and Figure 5 A frustum groove 11 is provided on the side wall of the chuck body 1. The bottom part of the frustum groove 11 is threaded. The sliding rail 2 is threadedly connected to the frustum groove 11 on the side wall of the chuck body 1 by a countersunk bolt 22, which can be freely disassembled or assembled. A frustum plate 23 is installed on the bottom wall of the sliding rail 2. A through hole 231 is provided on the frustum plate 23. The through hole 231 and the frustum groove 11 are coaxially arranged. The outer circumferential side wall of the frustum plate 23 abuts against and fits against the circumferential side wall of the frustum groove 11. The sliding rail 2 is threadedly connected to the frustum groove 11 after passing through the through hole 231 by a countersunk bolt 22, making the installation and disassembly of the sliding rail 2 more convenient. The head of the countersunk bolt 22 abuts against the inner circumferential side wall of the frustum plate 23, and the end face of the countersunk bolt 22 away from the screw rod and the bottom wall of the sliding track 2 are on the same plane, so that the fixed rod 3 will not be disturbed by the countersunk bolt 22 when it slides in the sliding track 2.

[0035] Reference Figure 4 and Figure 5The force-applying rod 5 has an installation groove 51, and the connecting rod 4 is embedded in the force-applying rod 5 through the installation groove 51. A clearance hole 511 is provided at the bottom of the installation groove 51, extending to the side of the force-applying rod 5 away from the connecting rod 4. The connecting rod 4 has a second clearance groove 41, which is coaxially arranged and interconnected with the clearance hole 511, but not coaxially arranged with the connecting rod 4. A locking rod 52 is installed on the force-applying rod 5. When the locking rod 52 passes through the clearance hole 511 and the second clearance groove 41 in sequence, the force-applying rod 5 and the connecting rod 4 are fixedly connected. At this time, the connecting rod 4 can be moved by rotating the force-applying rod 5 to clamp or release the workpiece. When the locking rod 52 only passes through the clearance hole 511 and not through the second clearance groove 41, the force-applying rod 5 and the connecting rod 4 are rotatably connected, and the force-applying rod 5 can rotate around the connecting rod 4.

[0036] Reference Figure 4 and Figure 5 A pressing piece 521 is installed on the end of the locking rod 52 away from the force-applying rod 5, so that the operator can press the locking rod 52 to make it pass through the clearance hole 511 and the second clearance groove 41. A third clearance groove 522 is formed on the side wall of the locking rod 52 away from the fixing rod 3. When the locking rod 52 passes through the clearance hole 511 and the second clearance groove 41, the pressing piece 521 is embedded in the third clearance groove 522 to prevent the locking rod 52 from loosening. An arc-shaped groove 5221 is formed on the groove wall of the third clearance groove 522 away from the sliding track 2, so that the operator can remove the pressing piece 521 from the third clearance groove 522 through the arc-shaped groove 5221, thereby driving the locking rod 52 to slide out of the second clearance groove 41.

[0037] Reference Figure 4 and Figure 5 The fixed rod 3 has a through hole 33 at one end near the sliding rail 2 and a limit rod 34 is installed thereon. The limit rod 34 passes through the through hole 33. The force-applying rod 5 has a fourth clearance groove 53 at one end away from the connecting rod 4. The fourth clearance groove 53 and the through hole 33 are coaxially arranged. When the force-applying rod 5 rotates around the connecting rod 4 to the side near the sliding rail 2, the limit rod 34 can pass through the through hole 33 and the fourth clearance groove 53 to lock the force-applying rod 5 and the connecting rod 4.

[0038] The implementation principle of a three-jaw chuck according to this utility model embodiment is as follows: When it is necessary to assist in clamping the workpiece, the fixed rod 3 can be slid in the sliding rail 2 to adjust the angle of the connecting rod 4 and fix it with the nut 311. By pressing the pressing piece 521, the locking rod 52 is inserted into the clearance hole 511 and the second clearance groove 41, so that the force-applying rod 5 and the connecting rod 4 are fixedly connected. At this time, rotating the force-applying rod 5 can drive the rotation of the connecting rod 4, so that the connecting rod 4 clamps the workpiece. After the workpiece is clamped, the pressing piece 521 is taken out through the arc groove 5221, so that the locking rod 52 is only inserted into the clearance hole 511. At this time, the force-applying rod 5 and the connecting rod 4 are rotatably connected. Rotate the force-applying rod 5 to the side closer to the sliding rail 2, and insert the limiting rod 34 into the fourth clearance groove 53 to lock the force-applying rod 5 and the connecting rod 4.

[0039] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A three-jaw chuck, characterized in that: The chuck body (1), the fixed rod (3), the connecting rod (4) and the sliding rail (2) are provided on one side of the chuck body (1). The fixed rod (3) is slidably connected to the sliding rail (2) along the length direction of the sliding rail (2). The connecting rod (4) is threadedly connected to the end of the fixed rod (3) away from the sliding rail (2). The end of the connecting rod (4) away from the fixed rod (3) faces the center of the chuck body (1).

2. A three-jaw chuck according to claim 1, characterized in that: A support rod (32) is fixedly connected to the fixed rod (3), and the end of the support rod (32) away from the fixed rod (3) abuts against the connecting rod (4).

3. A three-jaw chuck according to claim 2, characterized in that: The support rod (32) has an arc-shaped support piece (321) with the same inner diameter as the outer diameter of the connecting rod (4) at one end near the connecting rod (4). The arc-shaped support piece (321) abuts against the outer circumferential side wall of the connecting rod (4).

4. A three-jaw chuck according to claim 1, characterized in that: The chuck body (1) has a frustum groove (11) on its side wall. The bottom of the frustum groove (11) is threaded. The bottom wall of the sliding track (2) is provided with a frustum plate (23). The outer circumferential side wall of the frustum plate (23) abuts against and fits against the circumferential side wall of the frustum groove (11). A countersunk bolt (22) is passed through the sliding track (2). A through hole (231) is provided on the frustum plate (23). The screw of the countersunk bolt (22) passes through the through hole (231) and is threaded into the frustum groove (11). The head of the countersunk bolt (22) abuts against the inner circumferential side wall of the frustum plate (23). The end face of the head of the countersunk bolt (22) away from the screw and the bottom wall of the sliding track (2) are on the same plane.

5. A three-jaw chuck according to claim 1, characterized in that: The fixed rod (3) is fixedly connected with a bolt (31). The sliding track (2) is provided with a first clearance groove (21). The first clearance groove (21) is set along the length direction of the sliding track (2). The end of the bolt (31) away from the fixed rod (3) passes through the first clearance groove (21) and extends out of the sliding track (2). The part of the bolt (31) extending out of the sliding track (2) is threadedly connected with a nut (311). The nut (311) abuts against the side wall of the sliding track (2).

6. A three-jaw chuck according to claim 1, characterized in that: The connecting rod (4) has a force-applying rod (5) at the end away from the fixed rod (3).

7. A three-jaw chuck according to claim 6, characterized in that: The force-applying rod (5) is provided with an installation groove (51) for the connecting rod (4) to be embedded. The force-applying rod (5) is provided with a locking rod (52). The bottom of the installation groove (51) is provided with a clearance hole (511) that extends to the side of the force-applying rod (5) away from the connecting rod (4). The connecting rod (4) is provided with a second clearance groove (41). The second clearance groove (41) and the clearance hole (511) are coaxially arranged and interconnected. The second clearance groove (41) and the connecting rod (4) are not coaxially arranged. The locking rod (52) is sequentially inserted into the clearance hole (511) and the second clearance groove (41).

8. A three-jaw chuck according to claim 7, characterized in that: The locking rod (52) has a pressing piece (521) at one end away from the force-applying rod (5), and a third clearance groove (522) is provided on the side wall of the locking rod (52) away from the fixing rod (3) for the pressing piece (521) to be inserted.

9. A three-jaw chuck according to claim 7, characterized in that: The fixed rod (3) is provided with a limiting rod (34). The fixed rod (3) is provided with a through hole (33) at one end near the sliding track (2). The limiting rod (34) passes through the through hole (33). The force-applying rod (5) is provided with a fourth clearance groove (53) at one end away from the connecting rod (4) for the limiting rod (34) to slide.

10. A welding and machining integrated equipment, characterized in that: It also includes a three-jaw chuck as described in any one of claims 1-9.

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