CN219819502U - Piston rod fixing device - Google Patents
Piston rod fixing device Download PDFInfo
- Publication number
- CN219819502U CN219819502U CN202321377753.5U CN202321377753U CN219819502U CN 219819502 U CN219819502 U CN 219819502U CN 202321377753 U CN202321377753 U CN 202321377753U CN 219819502 U CN219819502 U CN 219819502U
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- China
- Prior art keywords
- piston rod
- polygonal
- seat
- nut
- fixing device
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000010485 coping Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model relates to the technical field of manufacturing of tool fixtures, in particular to a piston rod fixing device. The sliding table is included, one section of piston rod is equipped with the screw thread, and its characterized in that includes support, stop device and polygon seat, the polygon seat is fixed on the sliding table, stop device with the polygon seat links to each other. The utility model has the advantages of simple structure, low cost, simple operation, controllable tightness and capability of coping with piston rods of different types.
Description
Technical Field
The utility model relates to the technical field of manufacturing of tool fixtures, in particular to a piston rod fixing device.
Background
The piston rod assembly is one of the important parts of the hydraulic cylinder. In the manufacturing and maintenance process, because the large nut on the piston rod of the hydraulic oil cylinder has large tightening force, the other end of the piston rod must be fixed for tightening and disassembling the large nut so as to counteract the reaction force generated during tightening, and the large nut can be assembled or disassembled. There is a piston rod assembly, because the piston rod head has a hole site, a simple method is to use a rod penetrating mode to penetrate a pipe rod through the piston rod head with the hole, then clamp the pipe rod on a rack of a workbench, and screw or disassemble a large nut. This method has problems in the application process: when the large nut of the piston rod is disassembled or assembled, a pneumatic wrench is needed, and as the piston rod head is not clamped and vibrated greatly, the thread on the piston rod is easy to generate the defects of sliding teeth and the like, and the product quality is influenced.
The publication date is 2014, 1 month 15 days, and the Chinese patent document with publication number of CN203390801U discloses a piston rod clamping device, which comprises a workbench and is characterized in that: the workbench is provided with an upper bedplate and a bedplate which are arranged at two ends of the workbench, wherein the bedplate is provided with a guide rail and a sliding bedplate which is arranged on the guide rail and is connected with a driving oil cylinder; the sliding table plate is provided with a sliding rail, two sliding plates with clamping plates at the tops are arranged on the sliding rail, a forward and reverse rotation device is connected between the two sliding plates, the forward and reverse rotation device is connected with a hydraulic motor, and the hydraulic motor is connected with a hydraulic pump; and the sliding table plate is provided with a displacement sensor connected with the controller.
However, a piston rod clamping device of the above structure still has the following disadvantages: the piston rod clamping device adopts the hydraulic motor to clamp, has complex structure and high cost, is difficult to control the clamping tightness, and is too loose to slip, so that the clamping piston rod is easy to damage on the surface, and the specified torque cannot be achieved when the piston is screwed.
Disclosure of Invention
The utility model aims to solve the problems in the prior art and provide a piston rod fixing device which has the advantages of simple structure, low cost, simplicity in operation, controllable tightness and capability of coping with piston rods of different types.
The utility model is realized by the following technical scheme: the utility model provides a piston rod fixing device, includes the slip table, piston rod one end is equipped with the screw thread, its characterized in that, including support, stop device and polygon seat, the polygon seat is fixed on the slip table, stop device with the polygon seat links to each other.
Preferably, the limiting device comprises a sliding block and a rear top screw, one end of the sliding block is a circular flange, the other end of the sliding block is a polygonal nut, and the limiting function is realized through the cooperation of the sliding block and the rear top screw.
Preferably, the rear jack screw is in threaded connection with the polygonal nut.
Preferably, a polygonal hole is formed in the center of the polygonal seat, the polygonal nut is adapted to the polygonal hole, the polygonal nut is embedded in the polygonal hole, and the polygonal nut cannot rotate in the polygonal hole, so that the function of fixing the piston rod is achieved.
Preferably, the polygonal nut is adapted to the thread of the piston rod such that the piston rod can be connected to the polygonal nut by the thread.
Preferably, the limiting device has a plurality of different types and is used for coping with piston rods of different types, so that threads on the piston rods can be always matched with the polygonal nut.
Preferably, the diameter of the annular flange is larger than the diameter of the circumscribed circle of the polygonal hole, and the annular flange is positioned at the outer side of the polygonal seat, so that force is generated to the sliding block to prevent the sliding block from sliding out of the polygonal seat when the piston rod is used.
Preferably, the support is adjustable structure, including being used for supporting support frame, adjusting screw and the circular nut seat of piston rod, circular nut seat and adjusting screw spiro union can go up and down to the support to the different circumstances of coping actual operation.
The device has the beneficial effects that:
1. the device is simple to operate, the sliding block and the rear top screw are matched with the polygonal seat, the rear top screw and the piston rod are rotated to be propped against each other in the polygonal nut, and the sliding block is embedded in the polygonal seat and cannot rotate, so that the piston rod is fixed.
2. The piston rod with different types can be screwed with the polygonal nut by using the polygonal nut with different types and the rear top screw matched with the polygonal nut.
3. The device has simple structure and low cost, adopts a pure mechanical structure, and the used components are easy to manufacture and have low cost.
Drawings
FIG. 1 is a front view of the present utility model;
FIG. 2 is a top view of the present utility model;
FIG. 3 is a front view of a polygonal seat of the present utility model;
FIG. 4 is a top view of a polygonal seat of the present utility model;
FIG. 5 is a schematic view of a slider according to the present utility model;
FIG. 6 is a schematic view of the structure of the bracket of the present utility model;
illustration of: the device comprises a sliding block 1, a piston rod 2, a rear top screw 3, a sliding table 4, a polygonal seat 5, a bracket 6, a polygonal hole 7, a polygonal nut 8, an annular flange 9, a supporting frame 10, an adjusting screw 11 and a circular nut seat 12.
Detailed Description
The utility model is described in further detail below with reference to the drawings and the specific examples.
In one embodiment shown in fig. 1 to 6, the device of the present utility model comprises a sliding block 1, a piston rod 2, a rear top screw 3, a sliding table 4, a polygonal seat 5, a bracket 6, a polygonal hole 7, a polygonal nut 8, a circular flange 9, a supporting frame 10, an adjusting screw 11, a circular nut seat 12 and a workbench. Be equipped with the slide rail on the workstation, slip table 4 sets up on the slide rail, and polygon seat 5 sets up on slip table 4, and stop device including slider 1 and back top screw 3 links to each other with polygon seat 5, and piston rod 2 one end is placed on support 6, and one end is connected on polygon seat 5.
As shown in fig. 1 and 2, one end of the piston rod 2 is placed on the bracket 6, the other end is provided with threads and is in threaded connection with the sliding block 1, the sliding block 1 is embedded in the polygonal seat 5, the circular flange 9 is slightly larger than a hole of the polygonal seat 5, the rear top screw 3 is in threaded connection with the sliding block 1, and the polygonal seat 5 is fixed on the sliding table 4. When the piston is required to be installed, the piston rod 2 is fixed to prevent the piston rod 2 from rotating, the sliding block 1 and the rear top screw 3 which are matched with the piston rod 2 are selected, the sliding block 1 is placed in the polygonal seat 5, the rear top screw 3 is screwed into a proper position in the sliding block 1, and then one threaded end of the piston rod 2 is screwed into the sliding block 1 until the threaded end abuts against the rear top screw, at the moment, the annular flange 9 abuts against the polygonal seat 5 to prevent the sliding block 1 from sliding out of a hole of the polygonal seat 5. The rear top screw 3 is propped against the piston rod 2 in the sliding block 1 to fix the piston rod to rotate no longer, so that the device can be used normally.
As shown in fig. 3 and 4, the polygonal seat 5 is screwed on the sliding table 1, the polygonal seat 5 has a polygonal hole 7, and in this embodiment, the polygonal seat 5, the polygonal hole 7 and the polygonal nut 8 all adopt a hexagon. The polygonal nut 8 is placed in the polygonal hole 7, and when the piston is required to be installed, the polygonal nut 8 is clamped with the polygonal hole 7, so that the piston rod 2 cannot rotate, and the effect of fixing the piston rod 2 is achieved.
As shown in fig. 5, the sliding block 1 is composed of a circular flange 9 and a polygonal nut 8, the polygonal nut 8 is slightly smaller than the polygonal hole 7, and the diameter of the circular flange is larger than the diameter of the circumscribed circle of the polygonal hole, so that the polygonal nut 8 can be always positioned in the polygonal hole 7 and cannot slide out when a force is applied from the circular flange 9 to the polygonal nut 8, and the function of fixing the piston rod 2 is achieved.
As shown in fig. 6, the bracket 6 comprises a supporting frame 10, an adjusting screw 11 and a round nut seat 12, the supporting frame 10 is used for supporting the piston rod 2, and the adjusting screw 11 and the round nut seat 12 are mutually matched to rotate so as to adjust the height of the bracket 6, thereby changing the height position of one end of the piston rod 2 and facilitating the treatment of the piston rod 2.
The device can select the corresponding sliding block 1 and the corresponding back top screw 3 according to different piston rods, so that the polygonal hole 7 is matched with the piston rod 2, the polygonal seat 5 and the back top screw 3, and a good fixing effect is achieved.
The present utility model is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present utility model and the inventive concept thereof, can be replaced or changed within the scope of the present utility model.
Claims (5)
1. The piston rod fixing device comprises a sliding table (4), wherein one end of a piston rod (2) is provided with threads, and the piston rod fixing device is characterized by comprising a bracket (6), a limiting device and a polygonal seat (5), wherein the polygonal seat (5) is fixed on the sliding table (4), and the limiting device is connected with the polygonal seat (5); the limiting device comprises a sliding block (1) and a rear top screw (3), wherein one end of the sliding block (1) is a circular flange (9), and the other end of the sliding block is a polygonal nut (8); the center of the polygonal seat (5) is provided with a polygonal hole (7), and the polygonal nut (8) is matched with the polygonal hole (7).
2. A piston rod fixing device according to claim 1, wherein: the rear top screw (3) is in threaded connection with the polygonal nut (8).
3. A piston rod fixing device according to claim 1, wherein: the polygonal nut (8) is adapted to the thread of the piston rod (2).
4. A piston rod fixing device according to claim 1, wherein: the diameter of the annular flange (9) is larger than the diameter of the circumscribing circle of the polygonal hole (7), and the annular flange (9) is positioned at the outer side of the polygonal seat (5).
5. A piston rod fixing device according to claim 1, wherein: the support (6) is of an adjustable structure and comprises a support frame (10) for supporting the piston rod (2), an adjusting screw (11) and a round nut seat (12), wherein the round nut seat (12) is in threaded connection with the adjusting screw (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321377753.5U CN219819502U (en) | 2023-06-01 | 2023-06-01 | Piston rod fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321377753.5U CN219819502U (en) | 2023-06-01 | 2023-06-01 | Piston rod fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219819502U true CN219819502U (en) | 2023-10-13 |
Family
ID=88280310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321377753.5U Active CN219819502U (en) | 2023-06-01 | 2023-06-01 | Piston rod fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219819502U (en) |
-
2023
- 2023-06-01 CN CN202321377753.5U patent/CN219819502U/en active Active
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| GR01 | Patent grant | ||
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