CN210970063U - Novel press machine pull rod fastening device - Google Patents
Novel press machine pull rod fastening device Download PDFInfo
- Publication number
- CN210970063U CN210970063U CN201921533541.5U CN201921533541U CN210970063U CN 210970063 U CN210970063 U CN 210970063U CN 201921533541 U CN201921533541 U CN 201921533541U CN 210970063 U CN210970063 U CN 210970063U
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- hole
- pull rod
- urceolus
- piston cylinder
- nut
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- Presses And Accessory Devices Thereof (AREA)
Abstract
The utility model discloses a novel press pull rod fastening device, including piston cylinder, tightening nut, pull rod, urceolus and connecting cylinder, the piston cylinder sets up in the urceolus, and tightening nut and piston cylinder's piston connection, the cooperation of pull rod one end tightening nut hole, urceolus and connecting cylinder fixed connection are equipped with the support ring in the urceolus, are provided with lock nut in the support ring, and lock nut and pull rod cooperation are processed on lock nut's the lateral wall has hexagonal square hole, it has the hole to open on the lateral wall of support ring, processing have with the outer hole of aligning to the hole and intercommunication on the urceolus. The utility model discloses a piston cylinder makes its tensile section remain tensile pretension state throughout with the tensile back of pull rod, rethread adjusting lock nut's position, and piston cylinder can uninstall at any time this moment, need not keep full load state constantly, has not only guaranteed piston cylinder's life, has also guaranteed the continuation of pretension state simultaneously.
Description
Technical Field
The utility model relates to a press equipment field, concretely relates to novel press pull rod fastening device.
Background
At present, the rigidity of the body of the press is ensured by the structure of the press, and is mainly controlled by the pretightening force of the tension nut on the pull rod. The common press machine mainly adopts three methods of overpressure pre-tightening, hydraulic pre-tightening or heating pre-tightening and the like, and the hydraulic pre-tightening method is very suitable for medium and small-sized press machines in aspects of operation difficulty, investment cost and reliability. The existing hydraulic pre-tightening method is mainly realized through a piston oil cylinder, a tightening nut is jacked and stretched in an elastic deformation value range measured by a pull rod through thread coupling force, and therefore the purpose of pre-tightening the pull rod is achieved. In the mode, the pre-tightening effect can be realized only by keeping the piston oil cylinder in a full-load state all the time, the use requirement is met, once the piston oil cylinder is unloaded or the working state fails, the stretching pre-tightening state of the pull rod cannot be ensured, and finally the rigidity of the whole machine cannot be ensured.
Disclosure of Invention
An object of the utility model is to provide a need not keep piston cylinder full load state and realize the novel press pull rod fastener of pull rod pretension always.
The utility model aims at realizing through the following technical scheme: the utility model provides a novel press pull rod fastener, includes piston cylinder, tightening nut, pull rod, urceolus and connecting cylinder, piston cylinder sets up in the urceolus, and tightening nut and piston cylinder's piston connection, the screw thread section and the cooperation of tightening nut hole of pull rod, the hole of connecting cylinder is passed to the tensile section of pull rod, urceolus bottom face and connecting cylinder fixed connection, be equipped with the support ring in the urceolus, the support ring supports between piston cylinder and connecting cylinder, is provided with lock nut in the support ring, and lock nut and the screw thread section cooperation of pull rod, processing has round hexagonal square hole on lock nut's the lateral wall, it has two at least to the hole to open on the lateral wall of support ring, to hole and at least one hexagonal square hole intercommunication, processing has and aims at the outer hole of hole and intercommunication to the hole on the urc.
Furthermore, a dustproof cover sleeved on the tensioning nut is fixed on the top end face of the outer cylinder.
Furthermore, a limiting ring is formed on the top wall of the inner hole of the dustproof cover.
Further, the aperture size of the hole is 2-4 times of that of the hexagonal square hole, and the aperture size of the outer hole is larger than or equal to that of the hole.
The utility model discloses a piston cylinder makes its tensile section remain tensile pretension state throughout with the tensile back of pull rod, rethread adjusting lock nut's position, and piston cylinder can uninstall at any time this moment, need not keep full load state constantly, has not only guaranteed piston cylinder's life, has also guaranteed the continuation of pretension state simultaneously.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The labels in the figure are: 1-tensioning the nut; 2-a pull rod; 3, a dustproof cover; 4-a piston cylinder; 5-outer cylinder; 6-support ring; 7-locking the nut; 8-outer pores; 9-hole alignment; 10-a connecting cylinder; 11-hexagonal square hole.
Detailed Description
As shown in fig. 1, the novel press machine pull rod fastening device provided by this embodiment includes a piston cylinder 4, a tightening nut 1, a pull rod 2, an outer cylinder 5 and a connecting cylinder 10, the piston cylinder 4 is disposed on the upper portion of the inner cavity of the outer cylinder 5, the tightening nut 1 is connected with the piston of the piston cylinder 4, the preferable connection mode is a hole-axis interference fit, the thread section at the top of the pull rod 2 is matched with the inner hole of the tightening nut 1, the other end of the pull rod passes through the inner hole of the connecting cylinder 10 and is connected with a lower fixed template (not shown) of the machine body, the middle of the pull rod 2 is a main stretching section, the bottom end face of the outer cylinder 5 is fixedly connected with the upper end face of the connecting cylinder 10 through a plurality of bolts, the top end face of the outer cylinder 5 is fixed with a dust cap 3 sleeved.
5 inner chamber lower parts of urceolus are equipped with support ring 6, and support ring 6 supports between 4 cylinder bases of piston cylinder and the 10 upper surfaces of connecting cylinder, and support ring 6 makes whole structure have better support rigidity, is provided with lock nut 7 in the support ring 6, and lock nut 7 cooperates with the screw thread section of pull rod 2, processing has six and winds into hexagonal square hole 11 of round on lock nut 7's the lateral wall, it has two at least to the hole 9 to open on support ring 6's the lateral wall, and every is to hole 9 and at least one hexagonal square hole 11 intercommunication, processing has and aligns and the outer hole 8 of intercommunication to hole 9 on urceolus 5, in this embodiment, the aperture size to hole 9 is 2 ~ 4 times of the aperture size of hexagonal square hole 11, preferably 2.5 times, the aperture size of outer hole 8 is 1.5 times of the aperture size of hole 9.
The utility model discloses a theory of operation is: hydraulic oil is injected into the piston oil cylinder 4 through an external hydraulic pump, the piston pushes the tensioning nut 1 upwards, the pulling cylinder 2 starts to be stretched through thread coupling force, after the pulling cylinder is stretched in place, two hexagonal wrenches are adopted to align at any two hexagonal square holes, the locking nut 7 is rotated by a certain angle and is clamped with the upper surface of the connecting cylinder, the pull rod 2 is kept in a stretching and pre-tightening state under the locking force of the locking nut 7, at the moment, the hydraulic oil can be drawn out, the piston oil cylinder 4 is in an idle-load state, the service life of the piston oil cylinder 4 is ensured, and meanwhile, the pre-tightening effect of the pull rod 2 is also ensured, so that the higher rigidity of the whole machine is maintained.
The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any modification and replacement based on the technical solution and inventive concept provided by the present invention should be covered within the protection scope of the present invention.
Claims (4)
1. The utility model provides a novel press pull rod fastening device which characterized in that: including piston cylinder, straining nut, pull rod, urceolus and connecting cylinder, piston cylinder sets up in the urceolus, and the piston connection of straining nut and piston cylinder, the screw thread section and the cooperation of straining nut hole of pull rod, the hole of connecting cylinder is passed to the tensile section of pull rod, urceolus bottom face and connecting cylinder fixed connection, be equipped with the support ring in the urceolus, the support ring supports between piston cylinder and connecting cylinder, is provided with lock nut in the support ring, the screw thread section cooperation of lock nut and pull rod, processing has round hexagonal square hole on lock nut's the lateral wall, it has two at least to the hole to open on the lateral wall of support ring, to hole and at least one hexagonal square hole intercommunication, processing has and aims at the outer hole of hole and intercommunication to the hole on the urceolus.
2. The novel press ram fastening device of claim 1, wherein: and a dustproof cover sleeved on the tensioning nut is fixed on the top end face of the outer cylinder.
3. The novel press ram fastening device of claim 2, wherein: and a limiting ring is formed on the top wall of the inner hole of the dustproof cover.
4. The novel press ram fastening device of claim 1, wherein: the hole diameter of the hole is 2-4 times of that of the hexagonal square hole, and the hole diameter of the outer hole is larger than or equal to that of the hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921533541.5U CN210970063U (en) | 2019-09-16 | 2019-09-16 | Novel press machine pull rod fastening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921533541.5U CN210970063U (en) | 2019-09-16 | 2019-09-16 | Novel press machine pull rod fastening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210970063U true CN210970063U (en) | 2020-07-10 |
Family
ID=71459188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921533541.5U Active CN210970063U (en) | 2019-09-16 | 2019-09-16 | Novel press machine pull rod fastening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210970063U (en) |
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2019
- 2019-09-16 CN CN201921533541.5U patent/CN210970063U/en active Active
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