CN212479750U - Built-in hinge rod-lever combined type clamping mechanism - Google Patents
Built-in hinge rod-lever combined type clamping mechanism Download PDFInfo
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- CN212479750U CN212479750U CN202021258727.7U CN202021258727U CN212479750U CN 212479750 U CN212479750 U CN 212479750U CN 202021258727 U CN202021258727 U CN 202021258727U CN 212479750 U CN212479750 U CN 212479750U
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- clamping mechanism
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Abstract
The utility model discloses a built-in hinge rod-lever combined type clamping mechanism, including cylinder body and piston rod subassembly, the cylinder body includes cylinder, rear end cap, sets firmly the front end housing in cylinder cavity inner chamber to and set firmly the outer end cap in the cylinder front end, and the piston rod subassembly includes piston and piston rod, constitutes a holding chamber between outer end cap and the front end housing, clamping mechanism still including setting up with sliding briquetting on the cylinder perisporium, and set up and be in hinge rod-lever reinforcement subassembly in the holding chamber, this hinge rod-lever reinforcement subassembly are connected between cylinder body, piston rod subassembly and briquetting, and through ordering about the piston rod forward motion, above-mentioned hinge rod-lever reinforcement subassembly will promote the briquetting and outwards slide and export the packing force, and then realize forming the centre gripping to the work piece. The clamping mechanism can replace the traditional lever cylinder, the clamping force is greatly increased compared with products of the same specification, the required hydraulic oil quantity is small, the output capacity is high, the structure is simple, and the clamping mechanism is suitable for occasions with requirements on space.
Description
Technical Field
The utility model relates to a built-in hinge rod-lever combined type clamping mechanism.
Background
The lever structure is a structure well known to technicians in the field of machinery, is divided into an active arm, a resistance arm and a fulcrum, and has the advantages of simple structure, reasonable arrangement and force increasing effect. Therefore, the traditional lever cylinder is designed according to the principle, as shown in the attached drawings 1 and 2, the lever cylinder has the characteristics of simple structure and few defects of a mechanical model, and is greatly used in the tool clamp industry. The output force model of the lever cylinder is as follows: power (F)1) Power arm (L)1) = resistance (F)2) Resistance arm (L)2). However, the current clamp body pursues small and can have great output power, and the clamp force of the above-mentioned lever cylinder output of traditional form mainly depends on the ratio of initiative arm and resistance arm, for obtaining great output power, all need to realize through increasing the power arm, leads to the cylinder body size increase, often does not reach the demand to the occasion that has the volume requirement.
Disclosure of Invention
The utility model aims at overcoming the defects of the prior art and providing a built-in hinge rod-lever combined type clamping mechanism.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a built-in hinge rod-lever combined type clamping mechanism comprises a cylinder body and a piston rod assembly, wherein the cylinder body comprises a cylinder barrel with a hollow inner cavity, a rear end cover fixedly arranged at the rear end of the cylinder barrel, a front end cover fixedly arranged in the hollow inner cavity of the cylinder barrel and an outer end cover fixedly arranged at the front end of the cylinder barrel, the piston rod assembly comprises a piston and a piston rod, the piston is slidably arranged in the hollow inner cavity and is in sealing fit with the hollow inner cavity, a through hole is formed in the front end cover, the piston rod is axially and slidably arranged in the through hole and is in sealing fit with the through hole, an accommodating cavity is formed between the outer end cover and the front end cover,
the clamping mechanism further comprises a pressing block arranged on the circumferential wall of the cylinder barrel in a sliding mode, and a hinge rod-lever boosting assembly arranged in the accommodating cavity, wherein the hinge rod-lever boosting assembly comprises: the front end cover is provided with a fixed support rod, a movable support rod, a swing rod, a first connecting rod, a second connecting rod and a force application rod, wherein the fixed support rod extends along the front-back direction, the rear end of the fixed support rod is fixedly arranged on the front end cover, the movable support rod extends along the front-back direction, the rear end of the movable support rod is hinged to the front end of the front end cover, the swing rod extends along the front-back direction, the rear end of the swing rod is hinged to the front end of the piston rod, the first connecting rod is rotatably connected to the front end of the swing rod and the front end of the fixed support rod, the second.
Preferably, a guide hole is formed in the peripheral wall of the cylinder barrel, the extending direction of the guide hole is perpendicular to the axial lead direction of the cylinder barrel, and the pressing block is slidably inserted in the guide hole.
Furthermore, a guide cylinder is fixedly arranged on the outer wall of the cylinder barrel, the guide cylinder is provided with a cylinder cavity which penetrates through the guide cylinder along the axial direction of the guide cylinder, the cylinder cavity is connected with the guide hole, and the pressing block penetrates through the cylinder cavity of the guide cylinder along the sliding direction in a sliding fit manner.
Preferably, the length extension direction of the fixing strut is parallel to the axial line of the piston rod.
Preferably, the fixed strut and the movable strut are respectively arranged on two different ends of the front end cover in the radial direction.
Furthermore, the rotary connection position between the movable support rod and the front end cover and the axial lead of the fixed support rod are symmetrically arranged around the axial lead of the piston rod.
Preferably, the first connecting rod and the second connecting rod are rotatably connected to the front end of the swing rod around the same rotating shaft.
Preferably, the rear end cover is welded and fixed at the rear end part of the cylinder barrel, or the rear end cover and the cylinder barrel are integrally arranged.
Preferably, the front end cover is detachably arranged in the inner cavity of the cylinder barrel through a positioning pin, and the outer side peripheral wall of the front end cover is in sealing fit with the inner side peripheral wall of the cylinder barrel.
Preferably, a rod cavity is formed between the piston and the front end cover, a rodless cavity is formed between the piston and the rear end cover, a first gas/liquid channel communicated with the rod cavity is formed in the front end cover, a second gas/liquid channel communicated with the rodless cavity is formed in the rear end cover, and an interface butted with the first gas/liquid channel is further arranged on the cylinder barrel.
Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage: the utility model discloses a built-in hinge rod-lever combined type clamping mechanism, wherein through set up hinge rod-lever reinforcement subassembly in the cylinder body, make it connect between cylinder body, piston rod subassembly and briquetting, through ordering about the piston rod to move forward, above-mentioned hinge rod-lever reinforcement subassembly will promote the briquetting and outwards slide and export the packing force, and then realize forming the centre gripping to the work piece. The clamping mechanism can replace the traditional lever cylinder, the clamping force is greatly increased compared with products of the same specification, the required hydraulic oil quantity is small, the output capacity is high, the structure is simple, and the clamping mechanism is suitable for occasions with requirements on space.
Drawings
FIG. 1 and FIG. 2 are schematic diagrams of the structure and working principle of a conventional lever cylinder in the prior art;
fig. 3 is a schematic structural view of the clamping mechanism of the present invention, wherein the press block is in a loose state;
fig. 4 is a schematic structural view of the clamping mechanism of the present invention, wherein the pressing block is in a pressing state;
wherein: 1. a cylinder body; 11. a cylinder barrel; 12. a rear end cap; 121. a second gas/liquid channel; 13. a front end cover; 131. a first gas/liquid channel; 14. an outer end cover; 15. positioning pins; 16. a guide cylinder; 17. an interface; 2. a piston rod assembly; 21. a piston; 22. a piston rod; 3. briquetting; 4. fixing the supporting rod; 5. a movable strut; 6. a swing rod; 7. a first link; 8. a second link; 9. a force application rod; 10. a reversing valve.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings and specific embodiments.
Referring to fig. 3 and 4, a built-in hinge rod-lever combined clamping mechanism includes a cylinder body 1 and a piston rod assembly 2, where the cylinder body 1 includes a cylinder 11 having a hollow cavity, a rear end cover 12 fixed at the rear end of the cylinder 11, a front end cover 13 fixed in the hollow cavity of the cylinder 11, and an outer end cover 14 fixed at the front end of the cylinder 11, and the rear end cover 12 may be fixed at the rear end of the cylinder 11 by welding, or may be integrated with the cylinder 11, or may be hermetically connected by a fixed connection structure. The front end cover 13 is detachably disposed in the inner cavity of the cylinder tube 11 by a positioning pin 15, and the outer peripheral wall of the front end cover 13 is in sealing engagement with the inner peripheral wall of the cylinder tube 11.
The piston rod assembly 2 comprises a piston 21 and a piston rod 22, the piston 21 is arranged in the hollow inner cavity in a sliding fit manner and is in sealing fit with the hollow inner cavity, a through hole is formed in the front end cover 13, and the piston rod 22 penetrates through the through hole in an axial sliding fit manner and is in sealing fit with the through hole. An accommodating cavity is formed between the outer end cover 14 and the front end cover 13; a rod cavity is formed between the piston 21 and the front end cover 13, and a rodless cavity is formed between the piston 21 and the rear end cover 12.
The clamping mechanism also comprises a pressing block 3 which is arranged on the peripheral wall of the cylinder barrel 11 in a sliding way, and a hinge rod-lever force boosting assembly which is arranged in the accommodating cavity and comprises:
a fixed strut 4, the fixed strut 4 extends along the front-back direction, the back end of the fixed strut is fixed at the front side part of the front end cover 13, the length extension direction of the fixed strut 4 is parallel to the axial lead of the piston rod 21;
the movable supporting rod 5 extends along the front-back direction, the rear end of the movable supporting rod 5 is hinged on the front side part of the front end cover 13, and the movable supporting rod 5 and the fixed supporting rod 4 are respectively arranged on two different end parts of the front end cover 13 in the radial direction. Here, the rotational connection position between the movable rod 5 and the front end cap 13, and the axial line of the fixed rod 4 are symmetrically arranged with respect to the axial line of the piston rod 22;
a swing rod 6, the swing rod 6 extends along the front and back direction, and the rear end of the swing rod 6 is hinged at the front end of the piston rod 22;
the first connecting rod 7 is hinged between the front end of the swing rod 6 and the front end of the fixed supporting rod 4;
the second connecting rod 8 is hinged between the front end of the swing rod 6 and the front end of the movable supporting rod 5, and the second connecting rod 8 and the first connecting rod 7 are rotatably connected to the front end part of the swing rod 6 around the same rotating shaft;
and the force application rod 9, and the force application rod 9 is rotatably connected between the pressing block 3 and the movable support rod 5.
Referring to fig. 3 and 4, in the present embodiment, a guide hole is formed in the peripheral wall of the cylinder 11, the extending direction of the guide hole is perpendicular to the axial line direction of the cylinder 11, and the press block 3 can penetrate out of the cylinder 11 through the guide hole. The outer wall of the rod barrel 11 is also fixedly provided with a guide barrel 16, the guide barrel 16 is provided with a barrel cavity penetrating along the axial direction of the guide barrel, the barrel cavity is connected with a guide hole on the cylinder barrel 1, and the pressing block 3 is arranged in the barrel cavity of the guide barrel 16 in a sliding fit manner along the sliding direction so as to do linear motion along the axial direction vertical to the cylinder barrel 11, thereby outputting clamping force outwards.
The front end cover 13 is provided with a first air/liquid channel 131 communicated with the rod cavity, and the cylinder 11 is also provided with a connector 17 butted with the first air/liquid channel 131; the rear end cap 12 is provided with a second gas/liquid passage 121 communicating with the rodless chamber. The inlet and outlet of the reversing valve 10 are respectively communicated with the first gas/liquid channel 131 and the second gas/liquid channel 121, so that gas/liquid can be fed into and discharged from the rod cavity and the rodless cavity. In this embodiment, the working medium is hydraulic oil.
When air/liquid is introduced into the rodless cavity, the piston rod assembly 2 moves forwards to drive the swing rod 6 to move forwards, the swing rod 6 acts on the first connecting rod 7 and the second connecting rod 8, and then acts on the force application rod 9 to push the pressing block 3 to slide outwards to output pressing force, and further a workpiece is clamped. The clamping mechanism can replace the traditional lever cylinder, and the theoretical force increasing coefficient is i0=L1/2L2tan alpha compares the clamp force increase by a wide margin with equal specification product, and the hydraulic oil quantity that needs is few, and output capacity is high, and its simple structure is applicable to the occasion that has the requirement to the space, and simultaneously, all member all set up in the cylinder body inner chamber, and the potential safety hazard is little, and is difficult to get into the filth.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (10)
1. The utility model provides a built-in hinge rod-lever combined type clamping mechanism, includes cylinder body and piston rod subassembly, its characterized in that: the cylinder body comprises a cylinder barrel with a hollow inner cavity, a rear end cover fixedly arranged at the rear end of the cylinder barrel, a front end cover fixedly arranged in the hollow inner cavity of the cylinder barrel and an outer end cover fixedly arranged at the front end of the cylinder barrel, the piston rod assembly comprises a piston and a piston rod, the piston is slidably arranged in the hollow inner cavity and is in sealing fit with the hollow inner cavity, a through hole is arranged on the front end cover, the piston rod is axially and slidably arranged in the through hole in a penetrating way and is in sealing fit with the through hole, an accommodating cavity is formed between the outer end cover and the front end cover,
the clamping mechanism further comprises a pressing block arranged on the circumferential wall of the cylinder barrel in a sliding mode, and a hinge rod-lever boosting assembly arranged in the accommodating cavity, wherein the hinge rod-lever boosting assembly comprises: the front end cover is provided with a fixed support rod, a movable support rod, a swing rod, a first connecting rod, a second connecting rod and a force application rod, wherein the fixed support rod extends along the front-back direction, the rear end of the fixed support rod is fixedly arranged on the front end cover, the movable support rod extends along the front-back direction, the rear end of the movable support rod is hinged to the front end of the front end cover, the swing rod extends along the front-back direction, the rear end of the swing rod is hinged to the front end of the piston rod, the first connecting rod is rotatably connected to the front end of the swing rod and the front end of the fixed support rod, the second.
2. The built-in hinge rod-lever composite clamping mechanism of claim 1, wherein: the peripheral wall of the cylinder barrel is provided with a guide hole, the extending direction of the guide hole is perpendicular to the axial lead direction of the cylinder barrel, and the pressing block is slidably arranged in the guide hole in a penetrating mode.
3. The built-in hinge rod-lever composite clamping mechanism of claim 2, wherein: the outer wall of the cylinder barrel is fixedly provided with a guide cylinder, the guide cylinder is provided with a cylinder cavity which penetrates through the guide cylinder along the axial direction of the guide cylinder, the cylinder cavity is connected with the guide hole, and the pressing block penetrates through the cylinder cavity of the guide cylinder in a sliding fit manner along the sliding direction.
4. The built-in hinge rod-lever composite clamping mechanism of claim 1, wherein: the length extension direction of the fixed support rod is parallel to the axial lead of the piston rod.
5. The built-in hinge rod-lever composite clamping mechanism of claim 1, wherein: the fixed supporting rod and the movable supporting rod are respectively arranged on two different end parts of the front end cover in the radial direction.
6. The built-in hinge rod-lever composite clamping mechanism of claim 5, wherein: the rotary connecting position between the movable supporting rod and the front end cover and the axial lead of the fixed supporting rod are symmetrically arranged around the axial lead of the piston rod.
7. The built-in hinge rod-lever composite clamping mechanism of claim 1, wherein: the first connecting rod and the second connecting rod are rotatably connected to the front end part of the swing rod around the same rotating shaft.
8. The built-in hinge rod-lever composite clamping mechanism of claim 1, wherein: the rear end cover is welded and fixed at the rear end part of the cylinder barrel, or the rear end cover and the cylinder barrel are integrally arranged.
9. The built-in hinge rod-lever composite clamping mechanism of claim 1, wherein: the front end cover is detachably arranged in the inner cavity of the cylinder barrel through a positioning pin, and the outer side peripheral wall of the front end cover is in sealing fit with the inner side peripheral wall of the cylinder barrel.
10. The built-in hinge rod-lever composite clamping mechanism of claim 1, wherein: a rod cavity is formed between the piston and the front end cover, a rodless cavity is formed between the piston and the rear end cover, a first gas/liquid channel communicated with the rod cavity is formed in the front end cover, a second gas/liquid channel communicated with the rodless cavity is formed in the rear end cover, and an interface butted with the first gas/liquid channel is further arranged on the cylinder barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021258727.7U CN212479750U8 (en) | 2020-07-01 | 2020-07-01 | Built-in hinge rod-lever combined type clamping mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021258727.7U CN212479750U8 (en) | 2020-07-01 | 2020-07-01 | Built-in hinge rod-lever combined type clamping mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN212479750U true CN212479750U (en) | 2021-02-05 |
| CN212479750U8 CN212479750U8 (en) | 2021-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021258727.7U Active CN212479750U8 (en) | 2020-07-01 | 2020-07-01 | Built-in hinge rod-lever combined type clamping mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212479750U8 (en) |
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- 2020-07-01 CN CN202021258727.7U patent/CN212479750U8/en active Active
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| CN212479750U8 (en) | 2021-03-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CU01 | Correction of utility model patent |
Correction item: Address Correct: 215000 No.95 Caohu Avenue, Caohu street, Xiangcheng economic and Technological Development Zone, Suzhou City, Jiangsu Province False: 215000 No.95 Caohu Avenue, Caohu street, Suzhou City Economic and Technological Development Zone, Jiangsu Province Number: 06-02 Page: The title page Volume: 37 Correction item: Address Correct: 215000 No.95 Caohu Avenue, Caohu street, Xiangcheng economic and Technological Development Zone, Suzhou City, Jiangsu Province False: 215000 No.95 Caohu Avenue, Caohu street, Suzhou City Economic and Technological Development Zone, Jiangsu Province Number: 06-02 Volume: 37 |
|
| CU01 | Correction of utility model patent | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211022 Address after: 215000 No. 95, Caohu Avenue, Caohu street, Xiangcheng District, Suzhou City, Jiangsu Province Patentee after: SUZHOU XINDELI DYNAMO-ELECTRIC TECHNOLOGY Co.,Ltd. Address before: 215000 No.95 Caohu Avenue, Caohu street, Xiangcheng economic and Technological Development Zone, Suzhou City, Jiangsu Province Patentee before: SUZHOU ROARING PRECISION MACHINERY Co.,Ltd. |
|
| TR01 | Transfer of patent right |