CN112845755A - Pressure-adjustable flexible trimming tool - Google Patents
Pressure-adjustable flexible trimming tool Download PDFInfo
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- CN112845755A CN112845755A CN202110023948.9A CN202110023948A CN112845755A CN 112845755 A CN112845755 A CN 112845755A CN 202110023948 A CN202110023948 A CN 202110023948A CN 112845755 A CN112845755 A CN 112845755A
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- main shaft
- spring
- circular sleeve
- sleeve
- driven rod
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D19/00—Flanging or other edge treatment, e.g. of tubes
- B21D19/02—Flanging or other edge treatment, e.g. of tubes by continuously-acting tools moving along the edge
- B21D19/04—Flanging or other edge treatment, e.g. of tubes by continuously-acting tools moving along the edge shaped as rollers
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- Mechanical Engineering (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
The invention discloses a pressure-adjustable flexible binding tool. Including circular sleeve, main shaft and pinch roller subassembly, the main shaft upper end is inserted in the circular sleeve lower extreme, the pinch roller subassembly is connected its characterized in that with the main shaft lower extreme: the elastic support assembly comprises a connecting flange, a driving rod, a driven rod and an adjusting screw, the connecting flange is fixedly connected with the upper end of the circular sleeve, the upper end of the driving rod is rotatably connected with the lower surface of the connecting flange, a spring pressure head is arranged below the driven rod, the lower end of the driven rod is rotatably connected with the top of the lower head of a spring, the lower end of the driving rod is rotatably connected with the upper end of the driven rod, the adjusting screw transversely penetrates through the side wall of the circular sleeve, and the end part of the adjusting screw abuts against a connecting point of the lower end of the driving rod and the upper end of the driven rod; a change spring is arranged between the spring pressure head and the upper end of the main shaft, and two ends of the change spring are respectively abutted against the upper end of the main shaft and the lower end of the spring pressure head.
Description
Technical Field
The invention relates to a binding tool in the automobile welding industry, in particular to a flexible binding tool with adjustable pressure.
Background
At present, with the vigorous development of the automobile industry in China, the competition is increasingly violent, and firstly, the automobile model is updated quickly. Secondly, for the motorcycle type that the guarantee has not had the volume production, can in time provide spare parts for the market. The automobile factory has an increasing demand for a hemming process capable of flexible production, namely a robot hemming technology. The binding tool is used as a key part of the robot binding technology and plays a role in determining the quality of products.
The existing mechanical trimming tools mainly comprise three types:
the pure rigid structure comprises a main body and a roller group, and the trimming force cannot be adjusted;
secondly, an elastic structure is arranged on the basis of the first structure, the edge covering force in the edge rolling process is adjustable in a floating mode, but the elastic pre-tightening force is not adjustable;
and thirdly, a pre-tightening adjusting mechanism is added to the elastic structure on the basis of the second step, but the mechanism is positioned in the tool and is difficult to adjust.
The above-mentioned binding tool has the following disadvantages:
first, because the binding tool is a rigid structure, the binding force is not adjustable, it is difficult to ensure stable binding quality, and the debugging process is difficult;
and in the second type, although the flexibility is improved, the quality risk caused by the deviation of the plate can be effectively avoided. However, the door cover plate is lack of a pretightening force adjusting mechanism, and has poor adaptability to door cover plate pieces made of different materials, for example, the initial pretightening force of a steel piece and an aluminum piece on a binding tool has different requirements.
In the third category, the resilient elements in the binding tool are typically relatively stiff and require the use of external tools. Many pretension adjustment mechanisms are laborious and inconvenient to adjust.
Disclosure of Invention
The invention aims to provide a pressure-adjustable flexible binding tool which overcomes the defects in the prior art. In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:
a pressure-adjustable flexible trimming tool comprises a circular sleeve, a main shaft and a pressing wheel assembly, wherein the upper end of the main shaft is inserted into the lower end of the circular sleeve, the pressing wheel assembly is connected with the lower end of the main shaft, the pressure wheel assembly further comprises an elastic supporting assembly, the elastic supporting assembly comprises a connecting flange, a driving rod, a driven rod and an adjusting screw, the connecting flange is fixedly connected with the upper end of the circular sleeve, the upper end of the driving rod is rotatably connected with the lower surface of the connecting flange, a spring pressing head is arranged below the driven rod, the lower end of the driven rod is rotatably connected with the top of the lower end of the spring, the lower end of the driving rod is rotatably connected with the upper end of the driven rod, the adjusting screw transversely penetrates through the side wall of the circular sleeve;
a change spring is arranged between the spring pressure head and the upper end of the main shaft, and two ends of the change spring are respectively abutted against the upper end of the main shaft and the lower end of the spring pressure head.
Further inject, still include the spacing subassembly of stroke, the spacing subassembly of stroke includes first axle sleeve and stopper, first axle sleeve is inlayed in circular sleeve inner wall, the stopper lower extreme is provided with the bump, and pierces through first axle sleeve through the bump and be connected with the main shaft upper end, the stopper upper end is provided with the draw-in groove, change in the spring lower extreme embedding draw-in groove.
Further limiting, the side wall of the circular sleeve is provided with a strip-shaped hole extending axially, a pin shaft transversely penetrates through the main shaft, and the pin shaft is embedded into the strip-shaped hole.
Further defined, the spring ram houses a second bushing.
Further inject, the wheel components includes excessive flange, gyro wheel installation piece and pinch roller, excessive flange and main shaft lower extreme fixed connection, gyro wheel installation piece and excessive flange bottom fixed connection, the pinch roller passes through the shaft and is connected with gyro wheel installation piece rotation, and inlays between shaft and the gyro wheel installation piece and have the bearing.
Compared with the prior art:
1. a toggle rod mechanism is formed among the connecting flange, the circular sleeve, the adjusting screw, the driving rod, the driven rod, the spring pressure head and the second shaft sleeve. The adjusting screw is screwed, and the spring pressure head can be adjusted to slide up and down through the transmission of the connecting rod mechanism, so that the compression amount of the spring is adjusted, and the pretightening force of the spring is changed. The problem of the binding instrument lack spring pretightning force adjustment mechanism is solved. Meanwhile, the adjusting point is arranged outside the binding tool, the required operating tool is common, and the problem that the pre-tightening force of the spring is difficult to adjust is solved.
2. The main shaft and the first shaft sleeve form a linear motion pair, and the outer ring of the pin shaft fixedly connected with the main shaft is contacted with the groove of the sleeve, so that the rotation of the main shaft is limited, and the roller head can stably work.
3. The roller is pressed on the plate, the main shaft slides up and down to change the compression amount of the spring by pressing or lifting the robot. The compression force is gradually transmitted to the contact point of the roller and the plate, so that the trimming force in the trimming process can be adjusted. The flexibility of the binding mechanism is improved.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. In the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the internal structure of the present invention.
The main element symbols are as follows:
the device comprises a connecting flange 1, a circular sleeve 2, an adjusting screw 3, a driving rod 4, a driven rod 5, a spring pressure head 6, a second shaft sleeve 7, a variable spring 8, a limiting block 9, a main shaft 10, a first shaft sleeve 11, a pin shaft 12, a transition flange 13, a roller mounting block 14, a pressing wheel 15 and a bearing 16.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.
As shown in fig. 1 and 2: a pressure-adjustable flexible trimming tool comprises a circular sleeve 2, a main shaft 10 and a pinch roller 15 assembly, wherein the upper end of the main shaft 10 is inserted into the lower end of the circular sleeve 2, the pinch roller 15 assembly is connected with the lower end of the main shaft 10, the pressure-adjustable flexible trimming tool further comprises an elastic supporting assembly, the elastic supporting assembly comprises a connecting flange 1, a driving rod 4, a driven rod 5 and an adjusting screw, the connecting flange 1 is fixedly connected with the upper end of the circular sleeve 2, the upper end of the driving rod 4 is rotatably connected with the lower surface of the connecting flange 1, a spring pressing head 6 is arranged below the driven rod 5, the lower end of the driven rod 5 is rotatably connected with the top of the lower end of the spring, the lower end of the driving rod 4 is rotatably connected with the upper end of the driven rod 5, the adjusting screw transversely penetrates through the side wall of the circular sleeve 2, and;
a change spring 8 is arranged between the spring pressure head 6 and the upper end of the main shaft 10, and two ends of the change spring 8 respectively abut against the upper end of the main shaft 10 and the lower end of the spring pressure head 6.
Still include the spacing subassembly of stroke, the spacing subassembly of stroke includes first axle sleeve 11 and stopper 9, first axle sleeve 11 is inlayed in 2 inner walls of circular sleeve, stopper 9 lower extreme is provided with the bump, and pierces through first axle sleeve 11 and main shaft 10 upper end connection through the bump, stopper 9 upper end is provided with the draw-in groove, change in the 8 lower extremes of spring embedding draw-in grooves.
The side wall of the circular sleeve 2 is provided with an axially extending strip-shaped hole, the spindle 10 is transversely penetrated with a pin shaft 12, and the pin shaft 12 is embedded into the strip-shaped hole.
And a second shaft sleeve 7 is sleeved outside the spring pressure head 6.
The roller assembly comprises a transition flange, a roller mounting block 14 and a pressing wheel 15, the transition flange is fixedly connected with the lower end of the main shaft 10, the roller mounting block 14 is fixedly connected with the bottom of the transition flange, the pressing wheel 15 is rotatably connected with the roller mounting block 14 through a wheel shaft, and a bearing 16 is embedded between the wheel shaft and the roller mounting block 14.
In this embodiment, the circular sleeve 2 is connected with the connecting flange 1 through screws, and the connecting flange 1 can be connected with a robot to mount the whole binding tool. The connecting flange 1 and the spring pressure head 6 are both provided with hinged protruding structures, and the driving rod 4 and the driven rod 5 are hinged with the connecting flange 1 and the spring pressure head 6 respectively in pairs. The adjusting screw 3 is screwed on the threaded hole of the sleeve 2, and the circular pressure head at one end is pressed against the pressed plane of the driving rod 4. The second shaft sleeve 7 is embedded in the inner wall of the sleeve and is in contact with the outer edge of the spring pressure head 6 to form a linear motion pair. The adjusting screw 3 is screwed, and the vertical position of the spring pressure head 6 can be adjusted through transmission of the connecting rod mechanism, so that the compression amount of the spring 8 is adjusted, and the pretightening force of the spring 8 is changed. The inner ring of the upper part of the spring 8 is fixed by the spring pressure head 6, and the outer ring of the lower part is arranged in the groove of the limiting block 9, so that the spring 8 can not topple over.
The limiting block 9 is fixedly connected with a main shaft 10, and the main shaft 10 is guided downwards by a first shaft sleeve 11 embedded in the circular sleeve and can slide up and down. Meanwhile, the lower part of the limiting block 9 is abutted against the first shaft sleeve 11, so that the main shaft 10 can be ensured not to be separated from the two pin shafts 12 of the circular sleeve 2 and fixedly connected to the main shaft 10 under the action of spring force and gravity and to penetrate through the diameter of the circular sleeve 2. The round sleeve 2 is provided with a groove matched with the pin shaft 12 and is through in the front and the back. The pin 12 slides up and down along with the main shaft 10 in the groove, and meanwhile, the main shaft 10 can not rotate.
The roller mounting block 14 is fixedly connected with the main shaft 10 through a transition flange 13. The roller mounting block 14 is provided with a roller group unit consisting of a pressing wheel 15, a bearing 16 and a mandrel. One binding tool can be provided with 4 groups of roller group units at most according to requirements, and the pressing wheel 15 is divided into a round roller, a conical roller and a thumbwheel. To accommodate different binding feature areas of the door.
The technical scheme
1. A toggle rod mechanism is formed among the connecting flange, the circular sleeve, the adjusting screw, the driving rod, the driven rod, the spring pressure head and the second shaft sleeve. The adjusting screw is screwed, and the spring pressure head can be adjusted to slide up and down through the transmission of the connecting rod mechanism, so that the compression amount of the spring is adjusted, and the pretightening force of the spring is changed. The problem of the binding instrument lack spring pretightning force adjustment mechanism is solved. Meanwhile, the adjusting point is arranged outside the binding tool, the required operating tool is common, and the problem that the pre-tightening force of the spring is difficult to adjust is solved.
2. The main shaft and the first shaft sleeve form a linear motion pair, and the outer ring of the pin shaft fixedly connected with the main shaft is contacted with the groove of the sleeve, so that the rotation of the main shaft is limited, and the roller head can stably work.
3. The roller is pressed on the plate, the main shaft slides up and down to change the compression amount of the spring by pressing or lifting the robot. The compression force is gradually transmitted to the contact point of the roller and the plate, so that the trimming force in the trimming process can be adjusted. The flexibility of the binding mechanism is improved.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (5)
1. The utility model provides a pressure adjustable flexible binding tool, includes circular sleeve, main shaft and pinch roller subassembly, the main shaft upper end is inserted in the circular sleeve lower extreme, the pinch roller subassembly is connected its characterized in that with the main shaft lower extreme: the elastic support assembly comprises a connecting flange, a driving rod, a driven rod and an adjusting screw, the connecting flange is fixedly connected with the upper end of the circular sleeve, the upper end of the driving rod is rotatably connected with the lower surface of the connecting flange, a spring pressure head is arranged below the driven rod, the lower end of the driven rod is rotatably connected with the top of the lower head of a spring, the lower end of the driving rod is rotatably connected with the upper end of the driven rod, the adjusting screw transversely penetrates through the side wall of the circular sleeve, and the end part of the adjusting screw abuts against a connecting point of the lower end of the driving rod and the upper end of the driven rod;
a change spring is arranged between the spring pressure head and the upper end of the main shaft, and two ends of the change spring are respectively abutted against the upper end of the main shaft and the lower end of the spring pressure head.
2. The pressure adjustable flexible binding tool of claim 1, wherein: still include the spacing subassembly of stroke, the spacing subassembly of stroke includes first axle sleeve and stopper, first axle sleeve is inlayed in circular sleeve inner wall, the stopper lower extreme is provided with the bump, and pierces through first axle sleeve through the bump and be connected with the main shaft upper end, the stopper upper end is provided with the draw-in groove, change in the spring lower extreme embedding draw-in groove.
3. The pressure adjustable flexible binding tool of claim 2, wherein: the side wall of the circular sleeve is provided with a strip-shaped hole extending axially, a pin shaft transversely penetrates through the main shaft, and the pin shaft is embedded into the strip-shaped hole.
4. The pressure adjustable flexible binding tool of claim 3, wherein: and a second shaft sleeve is sleeved outside the spring pressure head.
5. The pressure adjustable flexible binding tool of claim 4, wherein: the roller assembly comprises a transition flange, a roller mounting block and a pressing wheel, the transition flange is fixedly connected with the lower end of the main shaft, the roller mounting block is fixedly connected with the bottom of the transition flange, the pressing wheel is rotatably connected with the roller mounting block through a wheel shaft, and a bearing is embedded between the wheel shaft and the roller mounting block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110023948.9A CN112845755A (en) | 2021-01-08 | 2021-01-08 | Pressure-adjustable flexible trimming tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110023948.9A CN112845755A (en) | 2021-01-08 | 2021-01-08 | Pressure-adjustable flexible trimming tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112845755A true CN112845755A (en) | 2021-05-28 |
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ID=76005544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110023948.9A Pending CN112845755A (en) | 2021-01-08 | 2021-01-08 | Pressure-adjustable flexible trimming tool |
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| Country | Link |
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| CN (1) | CN112845755A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004042213A1 (en) * | 2004-09-01 | 2006-03-02 | Dr.Ing.H.C. F. Porsche Ag | Rolling fold head for industrial robot, has cylinder - piston unit charged by pressure medium for providing delivering force and whose supply unit of pressuring medium is regulated through analog outlet of robot control |
| CN102009096A (en) * | 2010-09-30 | 2011-04-13 | 安徽巨一自动化装备有限公司 | Elastic knurling tool of robot |
| CN102228924A (en) * | 2011-04-15 | 2011-11-02 | 宁波中桥精密机械有限公司 | Twin-roller type aluminum alloy roller press |
| CN105964815A (en) * | 2016-06-23 | 2016-09-28 | 广州瑞松北斗汽车装备有限公司 | Roller system used for robot intelligent rolling and edge-covering system |
| CN108453161A (en) * | 2017-12-27 | 2018-08-28 | 上海君屹工业自动化股份有限公司 | A kind of pressure regulating mechanism |
| US20190344317A1 (en) * | 2018-05-11 | 2019-11-14 | Fu Tai Hua Industry (Shenzhen) Co., Ltd. | Roller assembly |
| CN210290470U (en) * | 2019-07-29 | 2020-04-10 | 宁波乐得计算机科技有限公司 | Double-end movable connecting rod |
-
2021
- 2021-01-08 CN CN202110023948.9A patent/CN112845755A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004042213A1 (en) * | 2004-09-01 | 2006-03-02 | Dr.Ing.H.C. F. Porsche Ag | Rolling fold head for industrial robot, has cylinder - piston unit charged by pressure medium for providing delivering force and whose supply unit of pressuring medium is regulated through analog outlet of robot control |
| CN102009096A (en) * | 2010-09-30 | 2011-04-13 | 安徽巨一自动化装备有限公司 | Elastic knurling tool of robot |
| CN102228924A (en) * | 2011-04-15 | 2011-11-02 | 宁波中桥精密机械有限公司 | Twin-roller type aluminum alloy roller press |
| CN105964815A (en) * | 2016-06-23 | 2016-09-28 | 广州瑞松北斗汽车装备有限公司 | Roller system used for robot intelligent rolling and edge-covering system |
| CN108453161A (en) * | 2017-12-27 | 2018-08-28 | 上海君屹工业自动化股份有限公司 | A kind of pressure regulating mechanism |
| US20190344317A1 (en) * | 2018-05-11 | 2019-11-14 | Fu Tai Hua Industry (Shenzhen) Co., Ltd. | Roller assembly |
| CN210290470U (en) * | 2019-07-29 | 2020-04-10 | 宁波乐得计算机科技有限公司 | Double-end movable connecting rod |
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