CN101419145B - Synchronization double-action flat-pushing hydraulic clamp - Google Patents
Synchronization double-action flat-pushing hydraulic clamp Download PDFInfo
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- CN101419145B CN101419145B CN2008102382518A CN200810238251A CN101419145B CN 101419145 B CN101419145 B CN 101419145B CN 2008102382518 A CN2008102382518 A CN 2008102382518A CN 200810238251 A CN200810238251 A CN 200810238251A CN 101419145 B CN101419145 B CN 101419145B
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- gear
- clamp body
- synchronous
- hydraulically operated
- operated fixture
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Abstract
The invention discloses a synchronous double-acting horizontal sliding hydraulic clamp device which comprises a clamp body for fixing a clamping sample, oil cylinders arranged on two sides of the clamp body and tong mouths which are driven through the oil cylinders to make synchronous motion in opposite directions. The synchronous device comprises a gear shaft arranged on the clamp body, a gear arranged on the gear shaft and two racks which are arranged on the upper side and the lower side of the gear and is engaged with the gear; and two racks are connected with piston rods of the oil cylinders through pin discs. Two racks are arranged on the upper side and the lower side of the gear and is engaged with the gear; two piston rods are controlled by the racks to make synchronous motion, thereby realizing synchronous clamping and solving the problem of mechanical synchronization of two oil cylinders matched for use; the synchronous device comprises the gear and the two racks, is closed in the inside of the clamp body and greatly improves the service life of the gear and the racks; and the rear side of the clamp body is provided with a rear cover plate which can prevent foreign matters and hands from entering a groove and improve the safety of operation.
Description
(1) technical field
The present invention relates to the hydraulically operated fixture technical field, particularly a kind of synchronization double-action flat-pushing hydraulic clamp device.
(2) background technology
Anchor clamps are vitals of Material Testing Machine, and can its decision material test carry out and test findings accuracy height smoothly.Current, in the grip of testing machine of domestic production, generally adopt Wedge gripping, such anchor clamps produce an additional force to sample in clamping process, had a strong impact on the raising of testing machine test data accuracy.
Current to realize that on hydraulically operated equipment (HOE) synchronous mode mainly contains following several: 1, synchronous 4, the series connection cylinder of synchronous 3, the synchronized cylinder of synchronous 2, the flow speed control valve of synchronous valve is synchronous 5, servo-valve is synchronous.All there is certain deficiency in aforesaid way:
1. the coherence request to cylinder sizes is low synchronously for flow speed control valve, and debugging is complicated, and synchronization accuracy is subjected to the influence of temperature, oil pressure bigger, and synchronization accuracy approximately has only 5%～7%;
2. synchronized cylinder synchronous processing difficulty, very high to the coherence request of oil cylinder and pipeline size, synchronization accuracy depends on machining precision and leakage, hydraulic pressure is wayward synchronously;
3. the series connection cylinder is synchronous, and very high to the coherence request of oil cylinder and pipeline size, synchronization accuracy is subjected to the influence in life-span bigger, keeps difficulty of certain synchronization accuracy for a long time;
4. the coherence request to oil cylinder and pipeline size is very high synchronously for synchronous valve, requires height to revealing.Debugging is simple, but synchronization accuracy approximately has only 2%-4%, and synchronous effect is undesirable;
5. servo-valve is synchronous, and oil sources is required height, and is low to the coherence request of cylinder sizes, the control accuracy height.But the manufacturing cost height is high to the control performance requirement of controller.
(3) summary of the invention
The technical problem to be solved in the present invention has provided a kind of synchronization double-action flat-pushing hydraulic clamp device, can eliminate the additional force in the clamping process, and oil sources is required simply, and low to the coherence request of cylinder sizes, debugging is simple, is easy to install and regulate.
In order to solve the problems of the technologies described above, the present invention realizes by following measure: a kind of synchronization double-action flat-pushing hydraulic clamp device, comprise the clamp body that is used for fixing the clamping sample, be installed in the oil cylinder of clamp body both sides, and the jaw by described hydraulic oil cylinder driving synchronous relative motion.
Synchronization double-action flat-pushing hydraulic clamp device of the present invention comprises also being used to synchronous device that jaw is clamped simultaneously that described synchronous device comprises
Gear shaft is installed on the clamp body;
Gear is installed on the described gear shaft;
Two tooth bars are installed in described gear and are meshed with gear both sides up and down;
Described two tooth bars all link to each other with the piston rod of oil cylinder by the pin dish.
Synchronization double-action flat-pushing hydraulic clamp device of the present invention, wherein said pin dish are provided with and are used to that the minor axis of tooth bar and the circular hole that matches with the axle head of piston rod are installed, and described pin dish is fixed on the described piston rod.
Synchronization double-action flat-pushing hydraulic clamp device of the present invention, wherein said jaw is installed in the piston-rod end of described oil cylinder.
Synchronization double-action flat-pushing hydraulic clamp device of the present invention, wherein said clamp body is provided with groove, and described gear, tooth bar are installed in the clamp body by groove.
Synchronization double-action flat-pushing hydraulic clamp device of the present invention, wherein said clamp body is provided with the groove that matches with described minor axis, and described tooth bar and minor axis pass described groove and link together by web member.
Synchronization double-action flat-pushing hydraulic clamp device of the present invention, wherein said clamp body is provided with the through hole that is used for the mounting teeth wheel shaft.
Synchronization double-action flat-pushing hydraulic clamp device of the present invention is equipped with bearing between wherein said gear and the gear shaft.
Synchronization double-action flat-pushing hydraulic clamp device of the present invention, the wherein said gear and the gear shaft outside are provided with the center pit cover plate.
Synchronization double-action flat-pushing hydraulic clamp device of the present invention, wherein said clamp body rear side are provided with and are used to prevent that foreign matter from entering the back shroud of groove.
Beneficial effect of the present invention:
Two tooth bars are installed in described gear and are meshed with gear both sides up and down, are synchronized with the movement by tooth bar control two-piston bar, realize synchronous clamping, have solved the mechanical synchronization problem of two oil cylinders of pairing use; Synchronous device comprises gear and two tooth bars, be easy to processing and install, and synchronous device is enclosed in clamp body inside, has improved the serviceable life of gear, tooth bar greatly; Described clamp body rear side is provided with back shroud, can prevent that foreign matter from entering groove and staff can't enter, and has improved the security of operation.
(4) description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
Fig. 1 is a principle of work synoptic diagram of the present invention.
Fig. 2 is a structural representation of the present invention.
Fig. 3 is the A-A cross-sectional schematic of Fig. 2.
Fig. 4 is that the M of Fig. 3 is to synoptic diagram.
Fig. 5 is the structural representation of pin dish.
Fig. 6 is the structural representation of clamp body.
Fig. 7 is the B-B cross-sectional schematic of Fig. 6.
1 oil cylinder among the figure, 2 piston rods, 3 pin dishes, 4 jaws, 5 gear shafts, 6 clamp bodies, 7 web members, 8 bearings, 9 gears are used ring washer for 10,11 thin nuts, 12 back shrouds, 13 center pit cover plates, 14 tooth bars, 15 pads, 16 circular holes, 17 grooves, 18 through holes, 19 minor axises, 20 grooves.
(5) embodiment
Illustrate selected embodiment of the present invention referring now to Figure of description 1.2.3.4.5.6.7, those skilled in the art only are exemplary according to subordinate's explanation of embodiments of the invention of the present disclosure, the scheme that is not meant to limit the present invention.
A kind of synchronization double-action flat-pushing hydraulic clamp device shown in Fig. 1 .2.3.4 comprises the clamp body 6 that is used for fixing the clamping sample, is installed in the oil cylinder 1 of clamp body 6 both sides, and the jaw 4 that drives synchronous relative motion by described oil cylinder 1.
Synchronization double-action flat-pushing hydraulic clamp device of the present invention shown in Fig. 1 .2.3.4 comprises also being used to synchronous device that jaw 4 is clamped simultaneously that described synchronous device comprises
Gear 9 is installed on the described gear shaft 5;
Two tooth bars 14 are installed in described gear and are meshed with gear 9 both sides about in the of 9;
Described two tooth bars 14 all link to each other with the piston rod 2 of oil cylinder 1 by pin dish 3.
Described as shown in Figure 5 pin dish 3 is provided with and is used to that the minor axis 19 of tooth bar 14 and the circular hole 16 that matches with the axle head of piston rod 2 are installed, and described pin dish 3 is fixed on the described piston rod 2.
Described as shown in Figure 2 jaw 4 is installed in piston rod 2 ends of described oil cylinder 1.
Install for convenience and regulate synchronous device shown in Fig. 6 .7 as described in clamp body 6 be provided with the square groove 17 that has seam, described gear 9, tooth bar 14 are installed in the clamp body 6 by groove 17.
Described as shown in Figure 5 clamp body 6 is provided with the groove 20 that matches with described minor axis 19, and described tooth bar 14 and minor axis 19 pass described groove 20 and link together by web member.
Described as shown in Figure 6 clamp body 6 is provided with the through hole 18 that is used for mounting teeth wheel shaft 5
In order to reduce the wearing and tearing between gear and the gear shaft, between described as shown in Figure 3 gear 9 and the gear shaft 5 bearing 8 is installed.
Gear 9 is provided with center pit cover plate 13 with gear shaft 5 outsides as described in shown in Fig. 3 .4, center pit cover plate 13 cooperates with described gear shaft 5 by center pit during installation, and with ring washer 10 center pit cover plate 13 is pressed surface at tooth bar 14 by the thin nut on the gear shaft 5 11 and axle.
The present invention does not have disclosed technical characterictic, is the known technology in present technique field.
Claims (8)
1. synchronization double-action flat-pushing hydraulic clamp device is characterized in that: comprises the clamp body (6) that is used for fixing the clamping sample, is installed in the oil cylinder (1) of clamp body (6) both sides, and the jaw (4) that drives synchronous relative motion by described oil cylinder (1); Described hydraulically operated fixture device also comprises and is used to synchronous device that jaw (4) is clamped simultaneously, described synchronous device comprises gear shaft (5), gear (9) and two tooth bars (14), wherein said gear shaft (5) is installed on the described clamp body (6), described gear (9) is installed on the described gear shaft (5), described two tooth bars (14) are installed in described gear (9) and are meshed with gear (9) both sides up and down, and described two tooth bars (14) all link to each other with the piston rod (2) of oil cylinder (1) by pin dish (3); Described pin dish (3) is provided with and minor axis that is used to install tooth bar (14) (19) and the circular hole (16) that matches with the axle head of piston rod (2), and described pin dish (3) is fixed on the described piston rod (2).
2. according to the described hydraulically operated fixture device of claim 1, it is characterized in that: described jaw (4) is installed in piston rod (2) end of described oil cylinder (1).
3. according to the described hydraulically operated fixture device of claim 1, it is characterized in that: described clamp body (6) is provided with groove (17), and described gear (9), tooth bar (14) are installed in the clamp body (6) by groove (17).
4. according to the described hydraulically operated fixture device of claim 1, it is characterized in that: described clamp body (6) is provided with the groove (20) that matches with described minor axis (19), and described tooth bar (14) passes described groove (20) with minor axis (19) and links together by web member.
5. according to the described hydraulically operated fixture device of claim 1, it is characterized in that: described clamp body (6) is provided with the through hole (18) that is used for mounting teeth wheel shaft (5).
6. according to the described hydraulically operated fixture device of claim 1, it is characterized in that: between described gear (9) and the gear shaft (5) bearing (8) is installed.
7. according to the described hydraulically operated fixture device of claim 1, it is characterized in that: described gear (9) is provided with center pit cover plate (13) with gear shaft (5) outside.
8. according to claim 1,2,3,4,5,6 or 7 described hydraulically operated fixture devices, it is characterized in that: described clamp body (6) rear side is provided with and is used to prevent that foreign matter from entering the back shroud of groove (17) (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102382518A CN101419145B (en) | 2008-12-11 | 2008-12-11 | Synchronization double-action flat-pushing hydraulic clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102382518A CN101419145B (en) | 2008-12-11 | 2008-12-11 | Synchronization double-action flat-pushing hydraulic clamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101419145A CN101419145A (en) | 2009-04-29 |
| CN101419145B true CN101419145B (en) | 2010-12-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102382518A Expired - Fee Related CN101419145B (en) | 2008-12-11 | 2008-12-11 | Synchronization double-action flat-pushing hydraulic clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101419145B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806672B (en) * | 2010-05-18 | 2011-08-31 | 卓旦春 | Valve life testing device |
| CN103335889B (en) * | 2013-06-21 | 2015-10-07 | 山东康迪泰克工程橡胶有限公司 | High-pressure rubber pipe pressure test system |
| CN103358248B (en) * | 2013-07-26 | 2016-12-28 | 深圳万测试验设备有限公司 | A kind of to folder fixture |
| CN106248496B (en) * | 2016-07-20 | 2019-02-26 | 西北工业大学 | Reciprocating double synchronous package systems based on Hopkinson compression bar |
| CN107228796B (en) * | 2017-06-26 | 2020-07-28 | 长春中机检测有限公司 | Flat-pushing wedge-shaped clamping device |
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2008
- 2008-12-11 CN CN2008102382518A patent/CN101419145B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN101419145A (en) | 2009-04-29 |
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Granted publication date: 20101222 Termination date: 20161211 |