A push rod bidirectional adjustable clamping device
By installing double nuts and insert plates on the push rod of the stretcher, the two-way adjustment of the push rod position is solved, and the problem of inconvenient adjustment of the push rod of the traditional stretcher is ensured that the jaws are uniformly clamped and simple to operate the workpiece. sex.
Patent Information
- Application Number
- CN201910034675.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2019-01-15
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2039-01-15
AI Technical Summary
The push rod adjustment device of traditional stretching machines is difficult to achieve bidirectional adjustment, resulting in uneven clamping of the jaws to the workpiece, and the adjustment process is cumbersome, so the synchronization beam needs to be removed.
A two-way adjustable clamping device for push rods is designed. By installing the double nuts and insert plates at the front and rear ends on the push rods, the push rods are driven to extend or retract with a separate clamping cylinder, and the position of the double nuts is adjusted. Achieve bidirectional adjustment of the push rod position to ensure uniform clamping of the jaws to the workpiece.
The two-way adjustment of the push rod position without removing any parts is achieved, ensuring uniform clamping of the jaws to the workpiece, simplifying the operation process, and improving the reliability of clamping.
Smart Images
Figure CN109500192B_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of metallurgical equipment and relates to a push rod bidirectional adjustable clamping device. Background Art
[0002] The stretching machine is mainly used for stretching non-ferrous or ferrous metal plates, strips, tubes, rods, and profiles. By making the metal elongate to a certain extent, it not only straightens and flattens the material to a certain extent, but more importantly, it improves the stress distribution inside the metal and improves the mechanical properties of the material. At present, the stretching machine is widely used in the metallurgical industry, aluminum and aluminum processing industry. The stretching machine clamps the workpiece to be stretched through several groups of jaws in the two heads, and then stretches it to achieve the purpose of improving the internal stress distribution of the workpiece. The uniformity of the workpiece clamping by the jaws is very important, which directly affects the effect of the workpiece after stretching. At present, the most reasonable jaw clamping mechanism is to use a combination of synchronous clamping and individual clamping to achieve uniform clamping of the workpiece, that is, several groups of individual clamping cylinders corresponding to the jaws are installed on the synchronous beam, each clamping cylinder is connected to a push rod, and the other end of the push rod can fit with the rear surface of the jaws; there is a synchronous cylinder on the left and right of the synchronous beam to control the movement of the entire synchronous beam. Since the push rod is generally long and deforms greatly after heat treatment, the length of each push rod itself will have errors; and when clamping the workpiece, one end of the push rod slides relative to the rear surface of the jaws, resulting in wear, which causes the length of the push rod to change. In order to ensure uniform clamping of the workpiece, the length of the push rod must be adjusted. At present, there are two main clamping control methods: one is that after the synchronous cylinder pushes the entire synchronous beam into place, the separate clamping cylinder pushes the jaws to clamp the workpiece through the push rod. This method is mainly used to clamp thick plates; the other is that the separate clamping cylinder first pushes the push rod to extend, and then the synchronous cylinder pushes the entire synchronous beam to move until the push rod fits with the rear surface of the jaws. At this time, the synchronous cylinder stops moving, and the high pressure on the separate clamping cylinder pushes the jaws to clamp the workpiece. This method is mainly used to clamp thin plates. In summary, this requires that the position of the front end face of the push rod must be the same when it is extended and retracted, so the push rod needs to be adjusted in both directions. Traditional clamping mechanisms rarely have push rod adjustment devices. Some clamping mechanisms that are equipped with push rod adjustment devices can only adjust the push rod in one direction, and the entire synchronous beam often needs to be removed for adjustment, which is time-consuming and labor-intensive. Summary of the invention
[0003] The purpose of the present invention is to provide a push rod bidirectional adjustable clamping device. The beneficial effect of the present invention is that the push rod extension and retraction positions can be adjusted bidirectionally without removing any parts, thereby ensuring uniform clamping of the jaws on the workpiece, and the operation is simple and convenient.
[0004] The technical solution adopted by the present invention is to include a plurality of push rods, which are installed on a synchronous beam, and the two ends of each push rod are respectively connected to a jaw and a separate clamping cylinder, and the separate clamping cylinder drives the push rod to move so as to push the jaw to clamp the workpiece to be stretched; a plug plate is also installed on each push rod, and a group of front-end double nuts and a group of rear-end double nuts are installed at the thread of each push rod, and the front-end double nuts and the rear-end double nuts are respectively located on both sides of the plug plate, and the positions of the front-end double nuts and the rear-end double nuts on the push rod are adjustable; the synchronous cylinder is connected to the synchronous beam to drive the synchronous beam to operate, and the synchronous cylinder and the separate clamping cylinder work together to realize the clamping of the jaws on the workpiece to be stretched.
[0005] Furthermore, when the single clamping cylinder drives the push rod to retract, the front double nut fits against the front surface of the insert plate, and the retracted position of the push rod can be adjusted by adjusting the position of the front double nut on the push rod; when the single clamping cylinder drives the push rod to extend, the rear double nut fits against the rear surface of the insert plate, and the extended position of the push rod can be adjusted by adjusting the position of the rear double nut on the push rod, thereby ensuring the consistency of the retracted and extended positions of the push rod, and then ensuring the consistency of the jaw position, and finally achieving uniform and reliable clamping of the jaws on the workpiece to be stretched. BRIEF DESCRIPTION OF THE DRAWINGS
[0006] Figure 1 It is a schematic diagram of the structure of a push rod bidirectional adjustable clamping device;
[0007] Figure 2 It is a side view of a push rod bidirectional adjustable clamping device.
[0008] In the figure: 1. Jaws; 2. Push rod; 3. Synchronous beam; 4. Synchronous cylinder; 5. Separate clamping cylinder; 6. Rear end double nut; 7. Insert plate; 8. Front end double nut. DETAILED DESCRIPTION
[0009] The present invention is described in detail below in conjunction with specific implementation modes.
[0010] The push rod bidirectional adjustable clamping device of the present invention is as follows Figure 1 and Figure 2 As shown, a plurality of push rods 2 are installed on a synchronous beam 3, and the two ends of each push rod 2 are respectively connected to a jaw 1 and a separate clamping cylinder 5, the push rod 2 and the jaw 1 are separable, and the separate clamping cylinder 5 drives the push rod 2 to move so as to push the jaw 1 to clamp the workpiece to be stretched;
[0011] A plug plate 7 is also installed on each push rod 2, and a group of front end double nuts 8 and a group of rear end double nuts 6 are installed on the thread of each push rod 2. The front end double nuts 8 and the rear end double nuts 6 are respectively located on both sides of the plug plate 7, and the front end double nuts 8 and the rear end double nuts 6 can adjust their positions on the push rod 2; the synchronous cylinder 4 is connected to the synchronous beam 3 to drive the synchronous beam 3 to operate, and the synchronous cylinder 4 and the separate clamping cylinder 5 work together to realize the clamping of the jaws 1 on the workpiece to be stretched.
[0012] When the single clamping cylinder 5 drives the push rod 2 to retract, the front double nut 8 fits against the front surface of the insert plate 7. At this time, the retracted position of the push rod can be adjusted by adjusting the position of the front double nut 8 on the push rod 2; when the single clamping cylinder 5 drives the push rod 2 to extend, the rear double nut 6 fits against the rear surface of the insert plate 7. At this time, the extended position of the push rod can be adjusted by adjusting the position of the rear double nut 6 on the push rod 2, thereby ensuring the consistency of the retracted and extended positions of the push rod 2, and then ensuring the consistency of the position of the jaws 1, and finally achieving uniform and reliable clamping of the jaws 1 on the workpiece to be stretched.
[0013] The device can easily realize bidirectional adjustment of the push rod extension and retraction positions by adjusting the positions of the double nuts without removing any parts, thereby ensuring that the jaws clamp the workpiece in height and width directions uniformly and reliably, each jaw is evenly stressed, and the operation is simple and convenient.
[0014] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are within the scope of the technical solution of the present invention.
Claims
1. A push rod bidirectional adjustable clamping device, characterized in that: It comprises a plurality of push rods, which are mounted on a synchronous beam, and the two ends of each push rod are respectively connected to a jaw and a separate clamping cylinder, and the separate clamping cylinder drives the push rod to move so as to push the jaw to clamp the workpiece to be stretched; a plug plate is also mounted on each push rod, and a group of front-end double nuts and a group of rear-end double nuts are mounted at the thread of each push rod, and the front-end double nuts and the rear-end double nuts are respectively located on both sides of the plug plate, and the front-end double nuts and the rear-end double nuts can adjust their positions on the push rod; the synchronous cylinder is connected to the synchronous beam and can drive the synchronous beam to operate, and the synchronous cylinder and the separate clamping cylinder work together to realize the clamping of the jaw to the workpiece to be stretched; When the separate clamping cylinder drives the push rod to retract, the front double nut fits with the front surface of the insert plate. At this time, the retracted position of the push rod can be adjusted by adjusting the position of the front double nut on the push rod; when the separate clamping cylinder drives the push rod to extend, the rear end double nut fits with the rear surface of the insert plate. At this time, the extended position of the push rod can be adjusted by adjusting the position of the rear end double nut on the push rod, thereby ensuring the consistency of the retracted and extended positions of the push rod, and then ensuring the consistency of the jaws position, and finally achieving uniform and reliable clamping of the jaws on the workpiece to be stretched.