CN112720306A - Mechanical clamping device - Google Patents

Mechanical clamping device Download PDF

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Publication number
CN112720306A
CN112720306A CN202011592454.4A CN202011592454A CN112720306A CN 112720306 A CN112720306 A CN 112720306A CN 202011592454 A CN202011592454 A CN 202011592454A CN 112720306 A CN112720306 A CN 112720306A
Authority
CN
China
Prior art keywords
frame
block
sliding
clamping device
clamping
Prior art date
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.)
Pending
Application number
CN202011592454.4A
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Chinese (zh)
Inventor
陆章全
刘笑莹
陈宁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing Forestry University
Original Assignee
Nanjing Forestry University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nanjing Forestry University filed Critical Nanjing Forestry University
Priority to CN202011592454.4A priority Critical patent/CN112720306A/en
Publication of CN112720306A publication Critical patent/CN112720306A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B11/00Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/06Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
    • F16F15/067Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs

Abstract

The invention discloses a mechanical clamping device, which belongs to the technical field of automatic machinery and comprises a frame, wherein two push rod motors which are symmetrically arranged are fixedly connected to the inner top of the frame, the inner side walls of two sides of the frame are both connected with a sliding block a in a sliding mode, a sliding groove a corresponding to the sliding block a is arranged on the frame, the output end of each push rod motor is fixedly connected with the top of the corresponding sliding block a, and the inner bottom of the frame are both connected with two sliding blocks b in a sliding mode. In the invention, the output shaft of the push rod motor pushes the sliding block a to move, and the sliding block a drives the connecting rod to have a smaller inclination angle, so that the two clamping blocks are pushed to move relatively, the clamping of the pipe fitting is realized, the clamping speed is high, the stress at each position can be uniformly distributed, the phenomenon that the pipe fitting is unstable and shakes due to the fact that the tensioning force at a certain position is too large or too small is avoided, in addition, the pipe fitting clamping device can be suitable for clamping the pipe fittings with different pipe diameters, time and labor are saved, and.

Description

Mechanical clamping device
Technical Field
The invention relates to the technical field of automatic machinery, in particular to a mechanical clamping device.
Background
The automatic pipe clamping machine is characterized in that any automatic machine consists of an execution element, a sensor part and a controller part, the automatic machine is widely applied to the aspects of industry, agriculture, military, scientific research, transportation, commerce, medical treatment, service, families and the like, the automatic machine can liberate people from heavy physical labor, partial mental labor and severe and dangerous working environments by adopting an automatic technology, the organ functions of people can be expanded, the labor productivity is greatly improved, and for partial automatic machines which need to clamp pipes, such as an automatic grinding machine, an automatic cutting machine and the like, the pipes to be treated are often required to be fixed, so that how to make the pipe clamping effect better is the problem which must be solved at present.
Common pipe fitting clamping device's the tight effect of clamp is not good, they often fix tubular product through the bolt through rigid cardboard, though can reach the purpose of clamp tightly, but the unable evenly distributed of the atress everywhere of pipe fitting, thereby can lead to the pipe fitting to add man-hour, lead to fixed unstable production to rock because of certain tensile force is too big or the undersize, can't reach anticipated processing purpose accurately, and be difficult to press from both sides tight radius according to the diameter adjustment of tubular product, waste time and energy when the adjustment, great inconvenience has been brought for the user.
To this end, we propose a mechanical clamping device to solve the above problems.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a mechanical clamping device.
In order to achieve the purpose, the invention adopts the following technical scheme:
a mechanical clamping device comprises a frame, wherein two symmetrically arranged push rod motors are fixedly connected to the inner top of the frame, sliding blocks a are connected to the inner side walls of the two sides of the frame in a sliding mode, sliding grooves a corresponding to the sliding blocks a are formed in the frame, the output end of each push rod motor is fixedly connected with the top of each sliding block a, two sliding blocks b are connected to the inner portion and the inner bottom of the frame in a sliding mode, sliding grooves b corresponding to the sliding blocks b are formed in the frame, the inner side walls of the sliding grooves b are connected with the sliding blocks b through reset springs, fixed columns are fixedly connected to the sliding blocks b, the two corresponding fixed columns are connected through a C-shaped frame, the outer side wall of the C-shaped frame is connected with a moving block through a buffer spring, one side, away from the C-shaped frame, of the moving block is connected with the sliding blocks a through a linkage, one side of grip block is provided with the arc recess, the grip block passes through spacing bolt and is connected with C type frame, the both sides of grip block all are provided with the spacing groove that corresponds with spacing bolt.
Preferably, the bottom of the sliding block a is connected with the inner bottom of the frame through a telescopic rod a.
Preferably, the moving block is connected with the C-shaped frame through an expansion rod b.
Preferably, the linkage mechanism comprises a U-shaped block fixedly connected to the outer side wall of the sliding block a and the outer side wall of the moving block, a rotating shaft a is installed on the inner side wall of the U-shaped block, and the two rotating shafts a are connected through a connecting rod.
Preferably, one side of the clamping block, which is far away from the arc-shaped groove, is horizontally arranged.
Preferably, the clamping block is far away from one side bottom fixedly connected with fixed block of arc recess, be provided with the standing groove that corresponds with the fixed block on the inside wall of C type frame.
Preferably, the number of the buffer springs is multiple, and the buffer springs are arranged in a surrounding mode by taking the telescopic rods b as circle centers.
The technical scheme provided by the embodiment of the invention can have the following beneficial effects:
1. compared with the prior art, the clamping device has the advantages that the output shaft of the push rod motor pushes the sliding block a to move, the sliding block a drives the connecting rod to have a smaller inclination angle, so that the two clamping blocks are pushed to move relatively, the clamping of the pipe fitting is realized, the clamping speed is high, the stress at each position can be uniformly distributed, the phenomenon that the pipe fitting is unstably fixed and shakes due to the fact that the tension at a certain position is too large or too small is avoided, in addition, the clamping device can be suitable for clamping the pipe fittings with different pipe diameters, time and labor are saved;
2. compared with the prior art, the clamping force of part of the clamping blocks on the pipe fitting can be buffered through the buffer springs, so that the pipe fitting can be stably clamped, and the deformation of the pipe fitting caused by overlarge clamping force can be avoided;
3. compared with the prior art, the clamping block has the advantages that the arc-shaped groove is formed in one side of the clamping block, the other side of the clamping block is horizontally arranged, the rectangular pipe fitting or the circular pipe fitting can be clamped, and the application range is wide.
Drawings
Fig. 1 is a schematic structural view of a mechanical clamping device according to the present invention;
FIG. 2 is a schematic view of the connection structure of the U-shaped block, the rotating shaft a and the connecting rod in the mechanical clamping device according to the present invention;
fig. 3 is a schematic view of a connection structure of a moving plate, a buffer spring and a telescopic rod b in the mechanical clamping device according to the present invention.
In the figure: 1. a frame; 2. a push rod motor; 3. a slide block a; 4. a U-shaped block; 5. a rotating shaft a; 6. a connecting rod; 7. a telescopic rod a; 8. a moving block; 9. a telescopic rod b; 10. a buffer spring; 11. a limit bolt; 12. a C-shaped frame; 13. a slide block b; 14. fixing a column; 15. a rotating shaft b; 16. a clamping block; 17. a limiting groove; 18. a fixed block; 19. a placement groove; 20. a return spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-3, a mechanical clamping device includes a frame 1, two symmetrically disposed push rod motors 2 are fixedly connected to an inner top portion of the frame 1, inner side walls of two sides of the frame 1 are slidably connected with sliders a3, a sliding slot a corresponding to the slider a3 is disposed on the frame 1, an output end of the push rod motor 2 is fixedly connected to a top portion of the slider a3, two sliders b13 are slidably connected to an inner bottom portion and an inner bottom portion of the frame 1, a sliding slot b corresponding to the slider b13 is disposed on the frame 1, an inner side wall of the sliding slot b is connected to the slider b13 through a return spring 20, a fixed column 14 is fixedly connected to the slider b13, the two corresponding fixed columns 14 are connected through a C-shaped frame 12, an outer side wall of the C-shaped frame 12 is connected to a moving block 8 through a buffer spring 10, a side of the moving block 8 far away from the C-shaped frame 12 is connected to the slider a3 through a, an arc-shaped groove is formed in one side of the clamping block 16, the clamping block 16 is connected with the C-shaped frame 12 through the limiting bolt 11, and limiting grooves 17 corresponding to the limiting bolt 11 are formed in the two sides of the clamping block 16.
Wherein, push rod motor 2's effect is the motion of drive slider a3 on frame 1, when push rod motor 2 drives slider a3 downstream, the inclination of connecting rod 6 changes, the one end of connecting rod 6 is promoting the direction motion of movable block 8 toward C type frame 12, drive two C type frame 12 relative motion, it is fixed to finally utilize the grip block 16 on two C type frames 12 to carry out the centre gripping to the pipe fitting, can cushion partial grip block 16 through buffer spring 10 and to the clamping-force of pipe fitting, can also avoid when guaranteeing to the pipe fitting centre gripping stability because the too big condition that leads to the pipe fitting to warp of clamping-force takes place.
The function of the slider b13 is to limit the motion tracks of the two C-shaped frames 12.
One side of the clamping block 16 is provided with an arc-shaped groove, the other side of the clamping block is horizontally arranged, a round pipe fitting or a rectangular pipe fitting can be clamped, and the application range is wide.
The return spring 20 serves to return the position of the slider b 13.
More specifically, the bottom of the slider a3 is connected to the inner bottom of the frame 1 by a telescopic rod a 7.
The telescopic rod a7 is used for limiting the motion track of the sliding block a 3.
More specifically, the moving block 8 is connected to the C-shaped frame 12 through the telescopic rod b 9.
The function of the telescopic rod b9 is to limit the motion track of the moving block 8.
More specifically, the linkage mechanism comprises a U-shaped block 4 fixedly connected to the outer side wall of a sliding block a3 and the outer side wall of a moving block 8, a rotating shaft a5 is installed on the inner side wall of the U-shaped block 4, and the two rotating shafts a5 are connected through a connecting rod 6.
The linkage mechanism is used for driving the two C-shaped frames 12 to move relatively when the slide block a3 descends, and driving the two C-shaped frames 12 to move in opposite directions when the slide block a3 ascends.
More specifically, the side of the clamping block 16 away from the arc-shaped groove is horizontally arranged.
One side of the clamping block 16 is horizontally arranged, so that the two clamping blocks 16 are matched to clamp and fix the rectangular pipe fitting.
More specifically, a fixing block 18 is fixedly connected to the bottom of one side of the clamping block 16 away from the arc-shaped groove, and a placing groove 19 corresponding to the fixing block 18 is arranged on the inner side wall of the C-shaped frame 12.
The function of the fixing block 18 is to support the rectangular pipe when the rectangular pipe is clamped by the fixing block 18.
More specifically, the number of the buffer springs 10 is plural, and the plural buffer springs 10 are arranged around the telescopic rod b9 as a circle center.
The purpose of the plurality of buffer springs 10 surrounding the telescopic rod b9 is to prevent the moving block 8 from tilting due to uneven force.
In the invention, when the push rod motor 2 drives the slide block a3 to move downwards, the inclination angle of the connecting rod 6 changes, one end of the connecting rod 6 pushes the moving block 8 to move towards the direction of the C-shaped frame 12, so as to drive the two C-shaped frames 12 to move relatively, and finally, the clamping blocks 16 on the two C-shaped frames 12 are used for clamping and fixing the pipe fitting; when push rod motor 2 drives slider a3 and rises, reset spring 20 resets slider b13, two grip blocks 16 toward opposite direction motion, loosen the centre gripping to the pipe fitting, when needs adjust the centre gripping to the rectangle pipe fitting, twist off limit bolt 11, rotate grip block 16, it is relative to make two grip blocks 16 be one side that the level set up, then adjust slider b13 and descend and carry out the centre gripping to the rectangle pipe fitting, in addition, can cushion partial grip block 16 through buffer spring 10 and to the clamping-force of pipe fitting, can also avoid when guaranteeing to the pipe fitting centre gripping stability because the too big condition that leads to the pipe fitting to warp takes place for the clamping-force.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (7)

1. A mechanical clamping device comprises a frame (1) and is characterized in that two push rod motors (2) which are symmetrically arranged are fixedly connected to the inner top of the frame (1), sliding blocks a (3) are respectively connected to the inner side walls of the two sides of the frame (1) in a sliding mode, sliding grooves a corresponding to the sliding blocks a (3) are formed in the frame (1), the output end of each push rod motor (2) is fixedly connected with the top of the corresponding sliding block a (3), two sliding blocks b (13) are respectively connected to the inner portion and the inner bottom of the frame (1) in a sliding mode, sliding grooves b corresponding to the sliding blocks b (13) are formed in the frame (1), the inner side walls of the sliding grooves b are connected with the sliding blocks b (13) through reset springs (20), fixing columns (14) are fixedly connected to the sliding blocks b (13), and the two corresponding fixing columns (14) are connected through a C-shaped frame (12), the outer side wall of the C-shaped frame (12) is connected with a moving block (8) through a buffer spring (10), one side, far away from the C-shaped frame (12), of the moving block (8) is connected with a sliding block a (3) through a linkage mechanism, the inner side wall of the C-shaped frame (12) is connected with a clamping block (16) through a rotating shaft b (15), one side of the clamping block (16) is provided with an arc-shaped groove, the clamping block (16) is connected with the C-shaped frame (12) through a limiting bolt (11), and limiting grooves (17) corresponding to the limiting bolt (11) are formed in the two sides of the clamping block (16).
2. A mechanical clamping device according to claim 1, characterized in that the bottom of the slide a (3) is connected to the inner bottom of the frame (1) by means of a telescopic rod a (7).
3. A mechanical clamping device according to claim 1, characterized in that the moving block (8) is connected to the C-frame (12) by means of telescopic rods b (9).
4. The mechanical clamping device as claimed in claim 1, wherein the linkage mechanism comprises a U-shaped block (4) fixedly connected to the outer side wall of the sliding block a (3) and the outer side wall of the moving block (8), the inner side wall of the U-shaped block (4) is provided with a rotating shaft a (5), and the two rotating shafts a (5) are connected through a connecting rod (6).
5. A mechanical clamping device according to claim 1, characterised in that the side of the clamping block (16) remote from the arcuate recess is horizontally disposed.
6. The mechanical clamping device as claimed in claim 5, wherein a fixing block (18) is fixedly connected to the bottom of one side of the clamping block (16) far away from the arc-shaped groove, and a placing groove (19) corresponding to the fixing block (18) is formed in the inner side wall of the C-shaped frame (12).
7. The mechanical clamping device as claimed in claim 1, wherein the number of the buffer springs (10) is multiple, and the multiple buffer springs (10) are arranged around the telescopic rod b (9) as a circle center.
CN202011592454.4A 2020-12-29 2020-12-29 Mechanical clamping device Pending CN112720306A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011592454.4A CN112720306A (en) 2020-12-29 2020-12-29 Mechanical clamping device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011592454.4A CN112720306A (en) 2020-12-29 2020-12-29 Mechanical clamping device

Publications (1)

Publication Number Publication Date
CN112720306A true CN112720306A (en) 2021-04-30

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Application Number Title Priority Date Filing Date
CN202011592454.4A Pending CN112720306A (en) 2020-12-29 2020-12-29 Mechanical clamping device

Country Status (1)

Country Link
CN (1) CN112720306A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113775856A (en) * 2021-08-06 2021-12-10 陈丽菲 Disposable prevents tearing open formula heat preservation structure for chemical industry equipment
CN113815249A (en) * 2021-09-07 2021-12-21 杭州博安实业有限公司 Intelligent character feeding mold for character pressing machine

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2995233A (en) * 1956-07-05 1961-08-08 Renault Automatic device for the clamping, unclamping and controlled positioning of a workpiece in its machining mounting
CN103659372A (en) * 2013-12-09 2014-03-26 昆山诺瑞信机械设备有限公司 Multifunctional workpiece holder
CN107971795A (en) * 2017-12-07 2018-05-01 何伯春 A kind of automated machine pipe fitting cramping arrangement
CN108381216A (en) * 2018-01-16 2018-08-10 佛山杰致信息科技有限公司 A kind of mechanical arm production clamping device
CN108544269A (en) * 2018-07-03 2018-09-18 合肥连森裕腾新材料科技开发有限公司 A kind of auto-parts production punching press drilling equipment
CN208196216U (en) * 2018-04-10 2018-12-07 唐山学院 Clamping device is used in a kind of machining
CN211491184U (en) * 2019-12-20 2020-09-15 上海兹马实业有限公司 Frock clamp is used in auto-parts production

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2995233A (en) * 1956-07-05 1961-08-08 Renault Automatic device for the clamping, unclamping and controlled positioning of a workpiece in its machining mounting
CN103659372A (en) * 2013-12-09 2014-03-26 昆山诺瑞信机械设备有限公司 Multifunctional workpiece holder
CN107971795A (en) * 2017-12-07 2018-05-01 何伯春 A kind of automated machine pipe fitting cramping arrangement
CN108381216A (en) * 2018-01-16 2018-08-10 佛山杰致信息科技有限公司 A kind of mechanical arm production clamping device
CN208196216U (en) * 2018-04-10 2018-12-07 唐山学院 Clamping device is used in a kind of machining
CN108544269A (en) * 2018-07-03 2018-09-18 合肥连森裕腾新材料科技开发有限公司 A kind of auto-parts production punching press drilling equipment
CN211491184U (en) * 2019-12-20 2020-09-15 上海兹马实业有限公司 Frock clamp is used in auto-parts production

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113775856A (en) * 2021-08-06 2021-12-10 陈丽菲 Disposable prevents tearing open formula heat preservation structure for chemical industry equipment
CN113815249A (en) * 2021-09-07 2021-12-21 杭州博安实业有限公司 Intelligent character feeding mold for character pressing machine

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Application publication date: 20210430

RJ01 Rejection of invention patent application after publication