CN113524245A - Heavy self-locking clamping jaw clamping device - Google Patents
Heavy self-locking clamping jaw clamping device Download PDFInfo
- Publication number
- CN113524245A CN113524245A CN202110817717.5A CN202110817717A CN113524245A CN 113524245 A CN113524245 A CN 113524245A CN 202110817717 A CN202110817717 A CN 202110817717A CN 113524245 A CN113524245 A CN 113524245A
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- CN
- China
- Prior art keywords
- power
- support
- power support
- power block
- clamping
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J15/00—Gripping heads and other end effectors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
- B65G47/90—Devices for picking-up and depositing articles or materials
Abstract
The invention provides a heavy self-locking clamping jaw clamping device which comprises a workpiece, a positioning support and a power support, wherein the positioning support is arranged above the workpiece, an air cylinder is fixedly arranged on the power support, a connecting rod is connected below the air cylinder, a power block is connected below the connecting rod, the lower part of the power block is conical, clamping handgrips symmetrically arranged along the workpiece are arranged at the lower part of the power support, the clamping handgrips are connected with the power support through fixed shafts, movable shafts are further arranged on the clamping handgrips, are arranged on the power support, can move left and right on the power support, are provided with rolling bearings, and are connected with the conical part of the power block through the rolling bearings, and tension springs are arranged between the movable shafts. It has solved current clamping mechanism and has become invalid because of losing power and lead to the technical problem that the work piece dropped easily. The invention can be widely applied to workpiece grabbing.
Description
Technical Field
The invention relates to a clamp, in particular to a heavy self-locking clamping jaw clamping device.
Background
As known, when the clamping jaw of the existing truss manipulator grabs a workpiece, the workpiece is easy to fall off, and impact is caused. The existing grabbing and clamping mechanism mostly adopts a hydraulic clamping mechanism and a pneumatic clamping mechanism, once power fails, the clamping mechanism loses power, the clamping mechanism is opened immediately, and a workpiece falls off. By adopting the mechanical self-locking device, the problems of power loss and clamping failure can be fundamentally solved, and the workpiece is prevented from falling.
Disclosure of Invention
Aiming at the technical problem that the existing clamping mechanism is easy to lose efficacy due to power loss and cause the workpiece to fall off, the invention provides the heavy self-locking clamping jaw clamping device which can quickly grab and put down the workpiece through the action of the air cylinder and can effectively prevent the workpiece from falling off.
Therefore, according to the technical scheme, the heavy self-locking clamping jaw clamping device comprises a workpiece, a positioning support and a power support, wherein the positioning support is arranged above the workpiece, an air cylinder is fixedly arranged on the power support, a connecting rod is connected below the air cylinder, a power block is connected below the connecting rod, the lower portion of the power block is conical, clamping handgrips symmetrically arranged along the workpiece are arranged at the lower portion of the power support, the clamping handgrips are connected with the power support through fixed shafts, movable shafts are further arranged on the clamping handgrips and arranged on the power support, the movable shafts can move left and right on the power support, rolling bearings are arranged on the movable shafts, the clamping handgrips are connected with the conical portion of the power block through the rolling bearings, and tension springs are arranged between the movable shafts.
Preferably, a guide flange is arranged between the air cylinder and the power support, a middle hole is formed in the power support, the lower end of the guide flange is in a stepped cylindrical shape with a thick upper end and a narrow lower end, the lower end of the guide flange is arranged in the middle hole of the power support, the upper end of the guide flange is fixed to the upper surface of the power support, a compression spring is arranged on the outer side of the cylindrical shape of the guide flange, and two end faces of the compression spring are respectively arranged on the stepped surface of the cylindrical shape of the guide flange and the upper end face of the power block.
Preferably, an end cover is arranged below the power block and fixed on the connecting rod.
Preferably, a connecting plate is arranged between the positioning support and the power support, the connecting plate is fixed to the bottom of the power support, and the positioning support can move along the connecting plate.
Preferably, the connecting plate is provided with an axial sliding groove, the positioning support is provided with a boss, and the boss is matched with the axial sliding groove.
Preferably, the power block is in the shape of two sections of cones, the taper of the upper section is large, the taper of the lower section is small, and the two sections of cones are in smooth transition.
Preferably, a piston rod is arranged on the cylinder, the cylinder is in threaded connection with the connecting rod through the piston rod, and the power block is connected with the connecting rod through a flat key.
Preferably, the power support is provided with a transverse strip-shaped hole, and the movable shaft is arranged in the transverse strip-shaped hole.
Preferably, the positioning bracket adopts a V-shaped positioning bracket.
The beneficial effects of the invention are that,
(1) according to the technical scheme, the opening and closing of the clamping hand grab are realized through the action of the air cylinder and the conical shape of the power block, the structure is simple, the operation is convenient, and due to the arrangement of the compression spring, when the air cylinder loses the action, the power block can be pushed to slide downwards under the action of the compression spring, so that the clamping hand grab is in a clamping state, the self-locking of the device is realized, the workpiece is prevented from falling, and the use safety and reliability are improved;
(2) the positioning support can slide in the axial sliding groove of the connecting plate, so that the axial position of the positioning support can be adjusted, workpieces with different sizes can be conveniently clamped, the universality of the device is improved, and the production cost is reduced;
(3) the movable shaft is positioned in the transverse strip-shaped hole of the power bracket, the tension spring is arranged on the movable shaft, acts on the movable shaft through the rolling bearing along with the up-and-down movement of the power block, and is stretched, so that the rolling bearing can be ensured to be tightly attached to the power block; the clamping hand grab is arranged on the power support through the fixed shaft, is arranged under the action of the power block, when the power block moves downwards, the conical surface is enlarged, the clamping hand grab at the bearing end is opened, the lower end of the clamping hand grab is tightened, the workpiece is grabbed, and otherwise, the workpiece is loosened and falls off;
(4) because the end cover is fixed at the lower end of the connecting rod, the power block can be prevented from falling, and the device structure is more reliable.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;
FIG. 2 is a front view of the overall structure of an embodiment of the present invention;
fig. 3 is a sectional view taken along line a-a in fig. 2.
The symbols in the drawings illustrate that:
1. a workpiece; a V-shaped positioning bracket; 3. a connecting plate; 4. a tension spring; 5. a power bracket; 6. a guide flange; 7. a cylinder; 8. an end cap; 9. a connecting rod; 10. a compression spring; 11. a piston rod; 12. a power block; 13. a rolling bearing; 14. a movable shaft; 15. a fixed shaft; 16. and clamping the hand grip.
Detailed Description
The present invention will be further described with reference to the following examples.
As shown in fig. 1-3, a heavy self-locking clamping jaw clamping device comprises a workpiece 1, a V-shaped positioning support 2, a connecting plate 3 and a power support 5, wherein the V-shaped positioning support 2 is arranged above the workpiece 1, the connecting plate 3 is fixed at the bottom of the power support 5, an axial sliding groove is formed in the connecting plate 3, a boss is arranged on the V-shaped positioning support 2, the boss is matched with the axial sliding groove, and the V-shaped positioning support 2 can move along the connecting plate 3. Be equipped with the mesopore on the power support 5, power support 5 top is equipped with guide flange 6, and guide flange 6 passes through the fastener to be fixed on power support 5, and guide flange 6 is equipped with the centre bore, and 6 top fixed cylinders 7 of guide flange are equipped with piston rod 11 on the cylinder 7, and piston rod 11 passes guide flange 6's centre bore, and 7 below of cylinder are equipped with connecting rod 9, and cylinder 7 passes through piston rod 11 and connecting rod 9 threaded connection. The power block 12 is connected below the connecting rod 9, the power block 12 is connected with the connecting rod 9 through a flat key, the end cover 8 is arranged below the power block 12, and the end cover 8 is fixed on the connecting rod 9 through threads, so that the power block can be prevented from falling, and the device structure is more reliable.
The lower end of the guide flange 6 is in a step-shaped cylindrical shape with a thick upper part and a narrow lower part, the lower end of the guide flange 6 is arranged in a middle hole of the power support 5, a compression spring 10 is arranged on the outer side of the cylindrical shape of the guide flange 6, and two end faces of the compression spring 10 are respectively arranged on the step face of the cylindrical shape of the guide flange 6 and the upper end face of the power block 12. The lower part of the power block 12 is in the shape of two sections of cones, the upper section has large taper, the lower section has small taper, and the two sections of cones are in smooth transition. Two clamping hand grips 16 symmetrically arranged along the workpiece 1 are arranged below the power support 5, the two clamping hand grips 16 are connected with the power support 5 through a fixing shaft 15, a movable shaft 14 is arranged on the upper portion of each clamping hand grip 16, a transverse strip-shaped hole is formed in the power support 5, and the movable shaft 15 is arranged in the transverse strip-shaped hole, so that the movable shaft 14 can move left and right on the power support 5. The movable shafts 14 are provided with rolling bearings 13, the clamping hand grips 16 are tightly contacted with the conical parts of the power blocks 12 through the rolling bearings 13, and the tension springs 4 are arranged between the two movable shafts 14.
When the compressed air power is normal, the piston rod 11 of the air cylinder 7 can make the power block 12 move up and down through the connecting rod 9 under the action of the compressed air. When the piston rod 11 moves downwards, the power block 12 moves downwards; the rolling bearing 13 at the upper end of the clamping hand grab 16 rotates outwards around the fixed shaft 15 fixed on the power support 5 along the outer surface of the power block 12 under the action of the movable shaft 14 tensioned by the tension spring 4, the lower part of the clamping hand grab 16 rotates inwards around the fixed shaft 15 fixed on the power support 5, and the workpiece 1 is clamped under the combined action of the upper V-shaped positioning support 2 and the clamping hand grab 16. When the piston rod 11 moves upwards, the power block 12 moves upwards, the rolling bearing 13 at the upper end of the clamping hand grab 16 rotates inwards along the outer surface of the power block 12 around the fixed shaft 15 fixed on the power support 5 under the action of the movable shaft 14 tensioned by the tension spring 4, the lower part of the clamping hand grab 16 rotates outwards around the fixed shaft 15 fixed on the power support 5, the clamping force of the clamping hand grab 16 is lost for the workpiece 1, and the workpiece 1 is loosened and falls off.
When compressed air power is not available, the piston rod 11 can move up and down freely, the compression spring 10 is stretched and opened, the power block 12 moves down under the guiding action of the guiding flange 6, the rolling bearing 13 at the upper end of the clamping hand grab 16 rotates outwards along the outer surface of the power block 12 around the fixed shaft 15 fixed on the power support 5 under the action of the movable shaft 14 tensioned by the tension spring 4, the lower part of the clamping hand grab 16 rotates inwards around the fixed shaft 15 fixed on the power support 5, and the workpiece 1 is grabbed and clamped under the combined action of the upper V-shaped positioning support 2 and the clamping hand grab 16, so that self-locking is realized and the workpiece 1 cannot fall off.
According to the technical scheme, the opening and closing of the clamping hand grab 16 are realized by combining the conical appearance of the power block 12 under the action of the air cylinder 7, the structure is simple, the operation is convenient, and due to the arrangement of the compression spring 10, when the air cylinder 7 loses the action, the power block 12 can be pushed to slide downwards under the action of the compression spring 10, so that the clamping hand grab 16 is in a clamping state, the self-locking of the device is realized, the workpiece is prevented from falling, and the use safety and reliability are improved; the V-shaped positioning bracket 2 can slide in the axial sliding groove of the connecting plate 3, so that the axial position of the V-shaped positioning bracket 2 can be adjusted, workpieces with different sizes can be conveniently clamped, the universality of the device is improved, and the production cost is reduced; the movable shaft 14 is positioned in the transverse strip-shaped hole of the power bracket 5, the tension spring 4 is arranged on the movable shaft 14, along with the up-and-down movement of the power block 12, the tension spring 4 acts on the movable shaft 14 through the rolling bearing 13, and the rolling bearing 13 can be ensured to be tightly attached to the power block 12 after being stretched; the clamping hand grab 16 is arranged on the power support 5 through the fixed shaft 15, the clamping hand grab 16 is under the action of the power block 12, when the power block 12 moves downwards, the conical surface is enlarged, the clamping hand grab 16 at the end of the rolling bearing 13 is opened, the lower end of the clamping hand grab 16 is tightened, the grabbing of the workpiece 1 is realized, and otherwise, the workpiece 1 is loosened and falls off.
However, the above description is only exemplary of the present invention, and the scope of the present invention should not be limited thereby, and the replacement of the equivalent components or the equivalent changes and modifications made according to the protection scope of the present invention should be covered by the claims of the present invention.
Claims (9)
1. The utility model provides a heavy auto-lock jack catch clamping device, its characterized in that, includes work piece, locating support and power support, the locating support is established the work piece top, the last fixed cylinder that is equipped with of power support, the connecting rod is connected to the cylinder below, the power block is connected to the connecting rod below, power block lower part appearance is the toper, the power support lower part is equipped with the edge the tight hand of clamp of work piece symmetrical arrangement is grabbed, the tight hand grab with connect through the fixed axle between the power support, the tight hand grab of clamp still is equipped with the loose axle on, the loose axle is established on the power support, the loose axle can control about on the power support, be equipped with antifriction bearing on the loose axle, the tight hand grab of clamp passes through antifriction bearing with the power block toper part is connected, be equipped with the extension spring between the loose axle.
2. The heavy self-locking jaw clamping device according to claim 1, wherein a guide flange is arranged between the air cylinder and the power support, a middle hole is formed in the power support, the lower end of the guide flange is in a stepped cylindrical shape with a thick upper part and a narrow lower part, the lower end of the guide flange is arranged in the middle hole of the power support, the upper end of the guide flange is fixed on the upper surface of the power support, a compression spring is arranged on the outer side of the cylindrical shape of the guide flange, and two end faces of the compression spring are respectively arranged on the step surface of the cylindrical shape of the guide flange and the upper end face of the power block.
3. The heavy duty self-locking jaw clamp of claim 1, wherein an end cap is provided below said power block, said end cap being secured to said connecting rod.
4. The heavy duty self-locking jaw clamp of claim 1, wherein a connecting plate is provided between said positioning bracket and said power bracket, said connecting plate being fixed to the bottom of said power bracket, said positioning bracket being movable along said connecting plate.
5. The heavy duty self-locking jaw clamping device according to claim 4, wherein an axial sliding groove is formed in the connecting plate, a boss is formed in the positioning bracket, and the boss is matched with the axial sliding groove.
6. The heavy duty self-locking jaw clamping device according to claim 1, wherein the power block has an outer shape of two sections of cones, an upper section of the power block has a large taper, a lower section of the power block has a small taper, and the two sections of cones are in smooth transition.
7. The heavy duty self-locking jaw clamping device according to claim 1, wherein a piston rod is provided on the cylinder, the cylinder is in threaded connection with the connecting rod through the piston rod, and the power block is connected with the connecting rod through a flat key.
8. The heavy duty self-locking jaw clamping device according to claim 1, wherein a transverse bar-shaped hole is formed in the power bracket, and the movable shaft is arranged in the transverse bar-shaped hole.
9. The heavy duty self-locking jaw clamp of claim 1 wherein the positioning bracket is a V-shaped positioning bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110817717.5A CN113524245A (en) | 2021-07-20 | 2021-07-20 | Heavy self-locking clamping jaw clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110817717.5A CN113524245A (en) | 2021-07-20 | 2021-07-20 | Heavy self-locking clamping jaw clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113524245A true CN113524245A (en) | 2021-10-22 |
Family
ID=78128890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110817717.5A Pending CN113524245A (en) | 2021-07-20 | 2021-07-20 | Heavy self-locking clamping jaw clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113524245A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3149853U (en) * | 2009-02-04 | 2009-04-16 | 新明工業株式会社 | Hand device |
| CN104842365A (en) * | 2015-05-22 | 2015-08-19 | 芜湖陀曼精机科技有限公司 | Manipulator used for griping high-temperature workpieces |
| CN105173721A (en) * | 2015-09-10 | 2015-12-23 | 华中科技大学 | Pneumatic tongs for feeding and discharging of crankshafts |
| CN109986591A (en) * | 2019-04-22 | 2019-07-09 | 宜昌长机科技有限责任公司 | A kind of grasping mechanism and application method that can quickly adjust jaw position |
| CN210335995U (en) * | 2019-08-26 | 2020-04-17 | 湖北汉唐智能科技股份有限公司 | Mechanical self-locking type shaft part clamping jaw suitable for automatic grabbing equipment |
| CN111531573A (en) * | 2020-06-11 | 2020-08-14 | 常州工业职业技术学院 | Self-locking grabbing robot for rail transit |
| CN213439710U (en) * | 2020-08-04 | 2021-06-15 | 深圳市运泰利自动化设备有限公司 | High-precision part grabbing mechanism |
-
2021
- 2021-07-20 CN CN202110817717.5A patent/CN113524245A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3149853U (en) * | 2009-02-04 | 2009-04-16 | 新明工業株式会社 | Hand device |
| CN104842365A (en) * | 2015-05-22 | 2015-08-19 | 芜湖陀曼精机科技有限公司 | Manipulator used for griping high-temperature workpieces |
| CN105173721A (en) * | 2015-09-10 | 2015-12-23 | 华中科技大学 | Pneumatic tongs for feeding and discharging of crankshafts |
| CN109986591A (en) * | 2019-04-22 | 2019-07-09 | 宜昌长机科技有限责任公司 | A kind of grasping mechanism and application method that can quickly adjust jaw position |
| CN210335995U (en) * | 2019-08-26 | 2020-04-17 | 湖北汉唐智能科技股份有限公司 | Mechanical self-locking type shaft part clamping jaw suitable for automatic grabbing equipment |
| CN111531573A (en) * | 2020-06-11 | 2020-08-14 | 常州工业职业技术学院 | Self-locking grabbing robot for rail transit |
| CN213439710U (en) * | 2020-08-04 | 2021-06-15 | 深圳市运泰利自动化设备有限公司 | High-precision part grabbing mechanism |
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