CN107838660B - Automatic avoiding mechanism for bottom surface of clamp for vertical assembly - Google Patents
Automatic avoiding mechanism for bottom surface of clamp for vertical assembly Download PDFInfo
- Publication number
- CN107838660B CN107838660B CN201711337278.8A CN201711337278A CN107838660B CN 107838660 B CN107838660 B CN 107838660B CN 201711337278 A CN201711337278 A CN 201711337278A CN 107838660 B CN107838660 B CN 107838660B
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- 230000007246 mechanism Effects 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 claims abstract description 34
- 230000008569 process Effects 0.000 claims abstract description 31
- 230000006835 compression Effects 0.000 claims abstract description 10
- 238000007906 compression Methods 0.000 claims abstract description 10
- 238000009434 installation Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000000452 restraining effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
- Escalators And Moving Walkways (AREA)
Abstract
The invention discloses a fixture bottom surface automatic avoiding mechanism facing vertical assembly, which comprises: the sliding block is arranged on the guide rail and can slide along the guide rail, and one end of the sliding block is fixedly connected with the bottom surface of the clamp; one end of the first connecting rod is hinged with the sliding block, and the other end of the first connecting rod is hinged with the roller; one end of the second connecting rod is hinged with the idler wheel, and the other end of the second connecting rod is hinged with the mechanism seat; the reset spring is sleeved on the spring guide shaft, one end of the spring is fixedly connected to the sliding block through a spring compression piece, the other end of the spring is fixedly connected to a fixed seat of the spring guide shaft, and the spring compression piece can move along the spring guide shaft along with the sliding block; the restraint assembly is fixedly connected to the assembly base, and the idler wheels reciprocate according to the track fitted by the restraint assembly in the contact process of the idler wheels and the restraint assembly so as to drive the bottom surface of the clamp to realize the avoidance and resetting process. The automatic avoiding mechanism for the bottom surface of the clamp facing the vertical assembly is simple in structure and does not need external driving.
Description
Technical Field
The invention belongs to the technical field of automatic assembly machinery, and particularly relates to an automatic avoidance mechanism for a bottom surface of a clamp for vertical assembly.
Background
Nowadays, under the background of great strategic planning of national advancement 'China manufacturing 2025', along with the development of economic technology in China, the product assembly process is more and more complex, and the quality of products and the production efficiency can be improved by using high-quality and high-performance automatic assembly equipment, so that the method has huge social and economic benefits. However, in a large-scale, repeatable and efficient vertical assembly process, the existing fixture bottom surface avoidance mechanism is complex in design, poor in adaptability and often needs external driving, and cannot meet the requirements of flexibility, high efficiency and high reliability of an automatic machine. Therefore, it is necessary to design a vertical assembly-oriented fixture bottom surface automatic avoiding mechanism which is simple to use, does not need to additionally drive vertical assembly, and can be widely applied to the related vertical assembly in equipment manufacturing industry, automobile manufacturing industry and national defense industry so as to improve the production efficiency of assembly and the stability of the whole assembly system.
Disclosure of Invention
The invention aims to overcome the defects that the existing clamp bottom surface avoiding mechanism is complex in structure and needs external driving, and provides the vertical assembly-oriented clamp bottom surface automatic avoiding mechanism which is simple in structure and does not need external driving and faces vertical assembly.
The technical scheme provided by the invention is as follows:
an automatic clamp bottom surface avoiding mechanism for vertical assembly, comprising:
the sliding block is arranged on the guide rail and can slide along the guide rail, and one end of the sliding block is fixedly connected with the bottom surface of the clamp;
one end of the first connecting rod is hinged with the sliding block, and the other end of the first connecting rod is hinged with the roller;
one end of the second connecting rod is hinged with the idler wheel, and the other end of the second connecting rod is hinged with the mechanism seat;
the reset spring is sleeved on the spring guide shaft, one end of the spring is fixedly connected to the sliding block through a spring compression piece, the other end of the spring is fixedly connected to a fixed seat of the spring guide shaft, and the spring compression piece can move along the spring guide shaft along with the sliding block;
the restraint assembly is fixedly connected to the assembly base, and the idler wheels reciprocate according to the track fitted by the restraint assembly in the contact process of the idler wheels and the restraint assembly so as to drive the bottom surface of the clamp to realize the avoidance and resetting process.
Preferably, the guide rail and the spring guide shaft are fixedly connected to the upper side of the mechanism seat, and the guide rail is parallel to the spring guide shaft.
Preferably, the first link and the second link are disposed at the lower side of the mechanism base.
Preferably, the first link is located below the second link, and the roller is located below the first link.
Preferably, the mechanism seat is fixedly connected to the lower side of the upper clamp mounting turntable and can rotate along with the upper clamp mounting turntable.
Preferably, the upper clamp mounting turntable is connected above the assembly base through an upper turntable rotating shaft, and the upper turntable rotating shaft drives the upper clamp mounting turntable to rotate relative to the assembly base.
Preferably, the restraint assembly includes a back-out restraint and a return restraint.
Preferably, the avoidance constraint member and the reset constraint member are fixedly connected to the constraint component mounting seat of the assembly base.
Preferably, the contour lines of the avoidance constraint member and the reset constraint member are determined according to the motion track fit of the roller.
Preferably, the contour lines of the contact parts of the avoidance restraint and the reset restraint with the roller are smooth curves.
The beneficial effects of the invention are as follows:
(1) The automatic avoidance mechanism for the bottom surface of the clamp facing the vertical assembly, provided by the invention, has a simple structure, and the movement of the avoidance execution assembly is passive movement without external driving.
(2) The automatic avoidance mechanism for the bottom surface of the clamp facing the vertical assembly, provided by the invention, has the advantages that the curve outlines of the avoidance constraint piece and the reset constraint piece are determined according to the fitting of the motion trail, so that the motion flow in the avoidance and reset process is natural, the clamping collision and the impact are avoided, the service life of the system is long, and the reliability is high.
(3) The automatic avoiding mechanism for the bottom surface of the clamp for vertical assembly, provided by the invention, has the advantages that the design of the reset assembly realizes sequential automatic movement in the process of working procedures, no additional driving and timing control are needed, and the automatic avoiding mechanism is suitable for efficient and batch vertical assembly processes.
Drawings
Fig. 1 is a schematic diagram of a principle of an automatic avoiding mechanism for a bottom surface of a clamp.
Fig. 2 is a schematic diagram illustrating connection between the avoidance execution mechanism and the reset mechanism and the mechanism seat according to the present invention.
Fig. 3 is a schematic diagram illustrating connection between two link structures and a lower mounting surface of a mechanism seat according to the present invention.
Fig. 4 is a schematic diagram of an automatic avoiding mechanism for the bottom surface of a clamp from an avoiding posture to a resetting posture.
FIG. 5 is a schematic view of the installation position of the automatic clamp bottom surface avoidance mechanism in an assembly system according to the present invention.
Detailed Description
The present invention is described in further detail below with reference to the drawings to enable those skilled in the art to practice the invention by referring to the description.
As shown in fig. 1-5, the present invention provides an automatic avoidance mechanism for a bottom surface of a vertically assembled fixture, the automatic avoidance mechanism comprising: avoidance executive component 100, reset component 200, and constraint component 300. Wherein, dodge execution assembly 100 and reset assembly 200 are respectively installed on mechanism base 400.
The avoidance executive assembly 100 includes a clamp bottom 110 fixedly coupled to one end of a slider 120. The lower part of the sliding block 120 is provided with a guide rail 130 matched with the sliding block, the guide rail 130 is a linear guide rail, and the guide rail 130 is fixedly connected to the upper mounting surface of the mechanism seat 400. The slider 120 can move linearly along the guide rail 130. One end of the first connecting rod 140 is hinged with the adapter 121 of the sliding block 120 through a first rotating shaft 141, and the other end of the first connecting rod is hinged with the roller 150 through a second rotating shaft 151; and a second link 160 having one end hinged to the roller 150 through a second rotation shaft 151 and the other end hinged to the lower mounting surface of the mechanism base 400 through a third rotation shaft 161. The connecting rod 140 and the second connecting rod 150 are both located at the lower side of the mechanism base 400, the first connecting rod 140 is located below the second connecting rod 160, and the roller 150 is located below the first connecting rod 140, so as to form a two-bar mechanism driven by the middle roller 150.
The reset assembly 200 includes a spring guide shaft 210 disposed on an upper mounting surface of the mechanism base 400 in parallel with the guide rail 130, and two ends of the spring guide shaft 210 are fixedly connected to the mechanism base 400 through a first fixing base 211 and a second fixing base 212, respectively. The return spring 220 is sleeved on the spring guide shaft 210, one end of the return spring 220 is fixedly connected to the side surface of the slider 120, which is close to the return spring 220, through a spring compression member 221, the other end of the return spring 220 is fixedly connected to the second fixing seat 212 of the spring guide shaft 210, and the spring compression member 221 can move linearly along the spring guide shaft 210 along with the slider 120. When the bottom surface 110 of the clamp needs to be avoided, the return spring 220 is compressed, the spring compression piece 221 moves linearly along the spring guide shaft 210 towards the direction of the second fixing seat 212, and the return spring 220 stores elasticity; when the bottom surface 110 of the clamp needs to be reset, the elastic force of the reset spring 220 is released and gradually expands, so that the spring compression piece 221 is pushed to drive the sliding block 120 to linearly move along the guide rail 130, and further drive the bottom surface 110 of the clamp to linearly move until the reset is completed, and when the bottom surface 110 of the clamp completes the reset, the reset spring 220 is in a completely relaxed state.
The restraining component 300 is fixedly connected to the assembly base 500, and the roller 150 reciprocates along a track fitted by the restraining component in the contact process of the roller 150 and the restraining component 300, so as to drive the bottom surface 110 of the clamp to realize the avoidance and resetting process.
In this embodiment, the restraint assembly 300 includes a back-out restraint 310 and a return restraint 320. Both the restraint assembly 310 and the reset restraint 320 are fixedly mounted on a restraint mount 330, and the mount 330 is fixedly connected to the base of the assembly 500. The mounting positions of the avoidance constraint member 310 and the reset constraint member 320 correspond to different movement positions of the roller 150, and when the roller 150 moves to a position contacting with the contour line of the avoidance constraint member 310, the bottom surface 110 of the clamp realizes the avoidance process; when the roller 150 moves to a position where it contacts the contour of the reset constraint 310, the clamp bottom 110 effects a reset process. Based on the avoidance movement track of the roller 150, fitting the curve contour of the avoidance constraint member 310, so that the avoidance action is smoothly completed in the contact process of the roller 150 and the avoidance constraint member 310, and the jamming caused by exceeding the stroke is avoided; based on the reset motion track of the roller 150, the curve contour of the reset constraint piece 320 is fitted, so that the reset action is naturally completed in the contact process of the roller 150 and the reset constraint piece 320, the impact caused by elastic force is reduced, and the service life of the mechanism is prolonged. After the roller 150 is separated from the avoidance constraint piece 310 and is contacted with the reset constraint piece 320, the reset spring 220 pushes the sliding block 120 to drive the clamp bottom surface 110 to reset, the reset process is sequential automatic motion, external driving and timing control are not needed, and the reliability is high. Preferably, the contour lines of the contact portions of the avoidance constraint member 310 and the reset constraint member 320 with the roller are smooth curves, so as to ensure that the whole movement process of the roller 150 is smooth, and avoid the occurrence of the jamming phenomenon. The avoidance motion is passive motion, no external drive is used, the control flow is simplified, the reliability of the system is improved, the roller design improves the sliding contact into rolling contact, and the smoothness of the avoidance constraint motion is improved.
The mechanism seat 400 is fixedly connected to the lower side of the upper clamp mounting turntable 600, the upper clamp mounting turntable 600 is hinged to the assembly base 500 through an upper turntable rotating shaft 610, the upper clamp mounting turntable 600 is located above the assembly base 500, and the upper turntable rotating shaft 610 is driven by a motor to rotate, so that the upper clamp mounting turntable 600 is driven to rotate relative to the assembly base.
The non-bottom upper jig 620 is fixedly mounted on the upper jig mounting turntable 600, and the non-bottom upper jig 620 is positioned on the upper side of the jig bottom 110 and cooperates with the jig bottom 110 to form a complete upper jig. The lower jig 720 is fixedly mounted on the lower jig mounting turntable 700, and the lower jig mounting turntable 700 is hinged to the assembly base 500 through a lower turntable shaft 710, the lower jig mounting turntable 700 being located above the assembly base 500. The lower turntable shaft 710 is rotated by a motor to drive the lower jig mounting turntable 700 to rotate with respect to the mounting base 500. The upper fixture mounting turntable 600 and the lower fixture mounting turntable 700 are respectively and relatively mounted on two sides of the assembly base 500, the rotation directions of the upper fixture mounting turntable 600 and the lower fixture mounting turntable 700 are opposite, the upper fixture and the lower fixture 720 are driven to move oppositely, the upper fixture and the lower fixture 720 can be respectively clamped to get the upper assembly part and the lower assembly part to reach the assembly position, the upper fixture and the lower fixture 720 move gradually and are in the process of approaching, the fixture bottom surface 110 simultaneously performs avoidance movement, after the upper fixture and the lower fixture 720 rotate to reach the assembly position, the fixture bottom surface 110 completes avoidance (completely withdraws from the bottom-surface-free upper fixture 620), the upper assembly part and the lower assembly part are contacted, the assembly punching machine 800 positioned above the assembly position starts to punch, and the vertical assembly of the upper assembly part and the lower assembly part is realized.
The working principle of the automatic avoiding mechanism for the bottom surface of the clamp facing the vertical assembly is taken as an example for implementation, and one-step explanation is made:
after the upper fixture clamps the assembly part at the part taking position, the upper fixture clamps the assembly part, the lower fixture 720 moves circularly relative to the assembly base 500 under the driving of the upper fixture mounting plate 600, meanwhile, the lower fixture 720 moves circularly relative to the assembly base 500 under the driving of the lower fixture mounting plate 700 after the assembly part is clamped at the part taking position, so that the upper fixture and the lower fixture 720 are gradually close, the fixture bottom surface 110 simultaneously performs avoiding movement, and when the upper fixture and the lower fixture 720 simultaneously reach the assembly position (the upper fixture is positioned right above the lower fixture 720 and the assembly punching machine 800 is positioned right above the upper fixture), the fixture bottom surface 110 is completely retracted beyond the area of the fixture 620 on the non-bottom surface, and the upper fixture mounting plate 600 and the lower fixture mounting plate 700 temporarily stop rotating. Thereafter, the assembly press 800 begins to press, achieving vertical assembly of the upper and lower assemblies. The specific process of avoiding movement of the bottom surface 110 of the clamp is as follows: the upper fixture mounting plate 600 drives the avoidance execution assembly 100 and the reset assembly 200 mounted on the mechanism seat 400 to rotate relative to the mounting base 500 in the rotation process, when the roller 150 moves to a position contacting with the contour line of the avoidance constraint member 310, the roller 150 moves along the track of the contour line of the avoidance constraint member 310, so that the two link mechanisms drive the sliding block 120 to move along the track 130, the reset spring 220 is compressed, and the avoidance process of the fixture bottom surface 110 is realized.
After the vertical assembly is completed, the upper and lower clamp mounting plates 600 and 700 continue to rotate in the original directions, respectively, so that the upper and lower clamps 720 are gradually moved away, and the reset process of the clamp bottom 110 is completed in the process of gradually moving away the upper and lower clamps 720. The specific process of the reset motion of the clamp bottom surface 110 is: the upper clamp mounting plate 600 drives the avoidance execution assembly 100 and the reset assembly 200 which are mounted on the mechanism seat 400 to rotate relative to the mounting base 500 in the rotating process, so that the roller 150 is separated from the avoidance constraint member 310 and is in contact with the reset constraint member 320, the reset spring 220 pushes the sliding block 120 to drive the clamp bottom surface 110 to reset, the reset process is sequential automatic motion, external driving and timing control are not needed, and the reliability is high.
The automatic avoidance mechanism for the bottom surface of the clamp facing the vertical assembly, provided by the invention, has a simple structure, and the movement of the avoidance execution assembly is passive movement without external driving. The curve outlines of the avoidance constraint piece and the reset constraint piece are determined according to the motion trail fit of the roller, so that the motion flow in the avoidance and reset process is natural, no blocking and impact is caused, the service life of the system is long, and the reliability is high. The design of the reset component realizes sequential automatic movement of the working procedure without external driving and timing control, and is suitable for efficient and batch vertical assembly flow.
Although embodiments of the present invention have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the invention would be readily apparent to those skilled in the art, and accordingly, the invention is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (8)
1. Automatic mechanism of dodging in anchor clamps bottom surface towards perpendicular assembly, characterized in that includes:
the sliding block is arranged on the guide rail and can slide along the guide rail, and one end of the sliding block is fixedly connected with the bottom surface of the clamp;
one end of the first connecting rod is hinged with the sliding block, and the other end of the first connecting rod is hinged with the roller;
one end of the second connecting rod is hinged with the idler wheel, and the other end of the second connecting rod is hinged with the mechanism seat;
the mechanism seat is fixedly connected to the lower side of the upper clamp mounting turntable and can rotate along with the upper clamp mounting turntable;
the reset spring is sleeved on the spring guide shaft, one end of the spring is fixedly connected to the sliding block through a spring compression piece, the other end of the spring is fixedly connected to a fixed seat of the spring guide shaft, and the spring compression piece can move along the spring guide shaft along with the sliding block;
the restraint assembly is fixedly connected to the assembly base, and the idler wheels reciprocate according to the track fitted by the restraint assembly in the contact process of the idler wheels and the restraint assembly so as to drive the bottom surface of the clamp to realize the avoidance and resetting process;
wherein the constraint assembly comprises an avoidance constraint member and a reset constraint member; the installation positions of the avoidance constraint piece and the reset constraint piece correspond to different movement positions of the roller, and when the roller moves to a position contacted with the contour line of the avoidance constraint piece, the bottom surface of the clamp realizes the avoidance process; when the roller moves to a position contacting with the contour line of the reset constraint, the bottom surface of the clamp realizes a reset process.
2. The automatic avoidance mechanism for a bottom surface of a vertically assembled fixture according to claim 1, wherein the guide rail and the spring guide shaft are fixedly connected to the upper side of the mechanism base, and the guide rail is parallel to the spring guide shaft.
3. The vertically assembled clamp bottom surface automatic avoidance mechanism of claim 2 wherein the first link and the second link are disposed on the underside of the mechanism base.
4. The vertically assembled clamp bottom face automatic avoidance mechanism of claim 3 wherein the first link is located below the second link and the roller is located below the first link.
5. The automatic avoidance mechanism for a bottom surface of a vertically assembled fixture according to claim 4, wherein the upper fixture mounting turntable is connected above the assembly base by an upper turntable shaft, and the upper turntable shaft drives the upper fixture mounting turntable to rotate relative to the assembly base.
6. The automated vertical assembly facing clip floor evasion mechanism of claim 5, wherein the evasion constraint and reset constraint are fixedly attached to the constraint assembly mount of the assembly base.
7. The automated vertical assembly facing clip floor evasion mechanism of claim 6, wherein the contours of the evasion constraint and the return constraint are determined by a roller motion trajectory fit.
8. The vertically assembled clamp bottom surface automatic escape mechanism of claim 7, wherein the contour of the contact portion of said escape and return restraints and said rollers is a smooth curve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711337278.8A CN107838660B (en) | 2017-12-14 | 2017-12-14 | Automatic avoiding mechanism for bottom surface of clamp for vertical assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711337278.8A CN107838660B (en) | 2017-12-14 | 2017-12-14 | Automatic avoiding mechanism for bottom surface of clamp for vertical assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107838660A CN107838660A (en) | 2018-03-27 |
| CN107838660B true CN107838660B (en) | 2023-11-17 |
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| CN201711337278.8A Active CN107838660B (en) | 2017-12-14 | 2017-12-14 | Automatic avoiding mechanism for bottom surface of clamp for vertical assembly |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108356137B (en) * | 2018-04-26 | 2023-10-13 | 北京信息科技大学 | Arc track movement mechanism under multi-positioning constraint condition |
| CN113600699B (en) * | 2021-08-06 | 2023-08-25 | 安徽福达汽车模具制造有限公司 | Transmission die clamping hand with dodging function |
| CN117644385A (en) * | 2022-11-22 | 2024-03-05 | 江门市江丰自动化科技有限公司 | Automatic assembling equipment for photovoltaic panel frame |
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| CN107838660A (en) | 2018-03-27 |
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