CN102241000A - 180-degree turning tool for vehicle frame - Google Patents
180-degree turning tool for vehicle frame Download PDFInfo
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- CN102241000A CN102241000A CN2011101849445A CN201110184944A CN102241000A CN 102241000 A CN102241000 A CN 102241000A CN 2011101849445 A CN2011101849445 A CN 2011101849445A CN 201110184944 A CN201110184944 A CN 201110184944A CN 102241000 A CN102241000 A CN 102241000A
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- arm
- rotating shaft
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- hydraulic cylinder
- upset
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- 230000007246 mechanism Effects 0.000 claims abstract description 29
- 239000000725 suspension Substances 0.000 claims abstract description 24
- 230000006698 induction Effects 0.000 claims description 11
- 238000009738 saturating Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 230000007306 turnover Effects 0.000 abstract description 4
- 230000009471 action Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 210000003739 neck Anatomy 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
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Abstract
The invention discloses a 180-dgree turning tool for a vehicle frame. The 80-dgree turning tool comprises a foundation which is provided with a suspension arm; one end of the suspension arm is hinged with the foundation through a first rotation shaft; the foundation is provided with a turning and driving mechanism; and a rotation execution component of the turning and driving mechanism is connected with the first rotation shaft so that the first rotation shaft can drive the suspension arm to turn over relative to the foundation. The suspension arm of the 180-dgree turning tool can automatically turn over the vehicle frame under the action of the turning and driving mechanism without requiring help from an operator nearby; casualties are avoided when the vehicle frame slides, and the safety is high; moreover, the tuning tool has a simple structure, the turning steps are greatly simplified, the working efficiency can be greatly improved, and the working time is saved.
Description
Technical field
The present invention relates to a kind of vehicle frame 180 degree upset frocks.
Background technology
At present, there is not special-purpose vehicle frame tipping arrangement.Existing vehicle frame all is to cooperate the artificial upset that realizes after relying on crane to sling.With the operating procedure complexity of crane upset vehicle frame, and need near several employees coordinated workpiece, whole switching process is wasted time and energy, and in switching process, exists vehicle frame by landing on the crane, the risk that causes casualties.
Summary of the invention
Purpose of the present invention has provided a kind of vehicle frame 180 degree upset frocks, and it is the equipment that is exclusively used in the upset vehicle frame, and whole switching process need not manually-operated, and is easy and simple to handle, safe, can solve the problem that prior art exists.
The objective of the invention is to be achieved through the following technical solutions: vehicle frame 180 degree upset frocks, comprise base, arm is installed on the base, one end of arm is hinged by first rotating shaft and base, the upset driving mechanism is installed on the base, the rotation execution unit of upset driving mechanism is connected with first rotating shaft, so that drive the relative base upset of arm by first rotating shaft.
For further realizing purpose of the present invention, can also realize by the following technical solutions: clamping device is installed on the arm, clamping device is got device by colluding of two symmetry installations and is constituted, each colludes and gets device and connected and composed by the 3rd hydraulic cylinder, second rotating shaft and first suspension hook, the cylinder body and the arm of the 3rd hydraulic cylinder are hinged, the neck of hook of the piston rod of the 3rd hydraulic cylinder and first suspension hook is hinged, and first suspension hook is hinged by second rotating shaft and arm, and second rotating shaft is positioned at the junction of the arm neck of hook and gib head.Offer groove on the arm, described two cover clamping mechanisms are installed in the saturating groove, the gib head of first suspension hook of two cover clamping mechanisms partly exposes outside the arm, so that holding workpiece is as the criterion.Described upset driving mechanism is motor or hydraulic motor, and motor or hydraulic motor output shaft are fixedlyed connected with first rotating shaft.Described upset driving mechanism is by first brake arm, second brake arm, first hydraulic cylinder and second hydraulic cylinder connect and compose, one end of first rotating shaft is installed first brake arm, the other end of first rotating shaft is installed second brake arm, the cylinder body of first hydraulic cylinder and second hydraulic cylinder and second brake arm are hinged, the piston rod of first hydraulic cylinder and first brake arm are hinged, the piston rod of second hydraulic cylinder and second brake arm are hinged, first hydraulic cylinder and second hydraulic cylinder make arm realize upset by first brake arm and second brake arm for first rotating shaft provides rotary power respectively, angle between first brake arm and second brake arm is α, 0 degree＜α＜360 degree.Base is installed four-sensor, the 3rd sensor, second sensor and first sensor, the 4th sensor block, the 3rd sensor block, second sensor block and first sensor block are installed on first rotating shaft, four-sensor, the 3rd sensor, second sensor and first sensor are right with four groups of inductions of the corresponding one by one formation of the 4th sensor block, the 3rd sensor block, second sensor block and first sensor block respectively, in first rotating shaft rotates, four groups of inductions are to triggering successively, and promptly wantonly two groups of inductions are not to triggering simultaneously.
Good effect of the present invention is: its arm can be under the effect of upset driving mechanism the vehicle frame that overturn voluntarily, need not near manually auxiliary upset vehicle frame, the vehicle frame landing can not cause casualties yet, and is safe.In addition, described upset frock simple for structure, overturning step is significantly simplified, and can effectively increase work efficiency, and saves the working time.
Description of drawings
Fig. 1 is the structural representation of vehicle frame 180 degree upset frocks of the present invention; Fig. 2 is the local structure for amplifying schematic diagram of the I of Fig. 1; Fig. 3 is that the structure for amplifying schematic diagram is looked on the left side of Fig. 1; Fig. 4 is that the A-A of Fig. 1 analyses and observe the structure for amplifying schematic diagram; Fig. 5 is the user mode figure of vehicle frame 180 degree upset frocks of the present invention.
Reference numeral: 1 first brake arm, 2 bases, 3 first hydraulic cylinders, 4 rotating shafts, 5 arms, 6 second brake arms, 7 first rotating shafts, 8 second hydraulic cylinders, 9 four-sensors 10 the 3rd sensor, 11 second sensors, 12 first sensors, 13 first sensor blocks, 14 second sensor blocks 15 the 3rd sensor block 16 the 4th sensor block, 17 workpiece 18 the 4th hydraulic cylinder, 19 second suspension hooks 20 the 3rd rotating shaft 21 the 3rd hydraulic cylinder, 22 first suspension hooks, 23 saturating grooves.
The specific embodiment
Vehicle frame 180 degree upset frocks of the present invention comprise base 2, and arm 5 is installed on the base 2, and an end of arm 5 is hinged with base 2 by first rotating shaft 7, and arm 5 can rotate so that realize the upset of workpiece 17 relative to base 2 under the drive of first rotating shaft 7.The upset driving mechanism is installed on the base 2, and the rotation execution unit of upset driving mechanism is connected with first rotating shaft 7, provides power for first rotating shaft 7 drives arm 5 relative base 2 upsets.Described workpiece 17 promptly is a vehicle frame.
When needing upset workpiece 17, utilize rope or clamping device that workpiece 17 is firmly secured on the arm 5 earlier, restart the upset driving mechanism, the upset driving mechanism drives first rotating shaft 7 and rotates, first rotating shaft 7 drives arm 5 rotations, realizes 180 degree upsets of workpiece 17.The demand different according to the user, described upset frock can be done the work of overturning at any angle in 180 degree, for example only turn over to turn 90 degrees or 150 degree.
As Fig. 1, Fig. 3 and shown in Figure 4, on the arm 5 clamping device is installed, clamping device is got device by colluding of two symmetry installations and is constituted, each colludes and gets device and connected and composed by the 3rd hydraulic cylinder 21, second rotating shaft 4 and first suspension hook 22, the cylinder body of the 3rd hydraulic cylinder 21 and arm 5 are hinged, the neck of hook of the piston rod of the 3rd hydraulic cylinder 21 and first suspension hook 22 is hinged, and first suspension hook 22 is hinged with arm 5 by second rotating shaft 4, and second rotating shaft 4 is positioned at the junction of arm 5 necks of hook and gib head.Collude and get device for ease of distinguishing two, and the convenient operation principle of describing gripping workpiece 17, in Fig. 3 and Fig. 4, collude each parts of getting device with the 3rd hydraulic cylinder 21, second rotating shaft 4 and first suspension hook, 22 marks first, collude each parts of getting device with second suspension hook 19, the 3rd rotating shaft 20 and the 4th hydraulic cylinder 18 marks second.During holding workpiece 17, start earlier the 4th hydraulic cylinder 18 and the 3rd hydraulic cylinder 21 simultaneously, the 4th hydraulic cylinder 18 promotes second suspension hook 19 and first suspension hook, 22 relative opening respectively with the 3rd hydraulic cylinder 21, make the 4th hydraulic cylinder 18 and the 3rd hydraulic cylinder 21 counteragents again, make second suspension hook 19 relative closed, collude firm workpiece 17 to finish holding action with first suspension hook 22.
Described clamping device can also be that existing other can be fixed in workpiece 17 device on the arm 5, for example electromagnet, the manipulator with holding function or existing other clamping devices.
As Fig. 1, Fig. 3 and shown in Figure 4, offer groove 23 on the arm 5, described two cover clamping mechanisms are installed in the saturating groove 23, the gib head of first suspension hook 22 of two cover clamping mechanisms partly exposes outside the arm 5, so that holding workpiece 17 is as the criterion.Two cover clamping mechanisms are positioned at groove 23, can alleviate the weight of arm 5 on the one hand, reduce production costs; on the other hand; can utilize the protecting sheathing of arm 5, prevent that two cover clamping mechanisms are subjected to external influence, guarantee the fastness of holding workpiece 17 as two cover clamping mechanisms.
Described upset driving mechanism can be motor or hydraulic motor, and motor or hydraulic motor output shaft are fixedlyed connected with first rotating shaft 7, rotates relative to base 2 so that drive arm 5 by first rotating shaft 7, to realize upset.Output shaft is the rotation execution unit of described upset driving mechanism.But, because the volume and the quality of workpiece 17 are bigger usually, and the arm of force of arm 5 is longer, therefore, if select motor or hydraulic motor for use, then need to select motor or hydraulic motor high-power, high pulling torque, will inevitably significantly increase volume, weight and the manufacturing cost of described upset frock, make this upset frock be difficult to actual applying.In addition, because just rotating speed is very fast for motor and hydraulic motor, general per minute is all in hundreds of or thousands of commentaries on classics, and the upset vehicle frame only need turn over turnback, and consider from security standpoint, rotating speed also should be controlled in the lower scope, for example per three minutes Rotate 180 degree, therefore, if adopt motor or hydraulic motor, then also need the supporting reductor of setting up, thereby further increased volume, weight and the production cost of described upset frock, make described upset frock only rest on the theoretical aspect, and can't directly just implement to benefit the society.
As shown in Figures 1 to 4, described upset driving mechanism can be by first brake arm 1, second brake arm 6, first hydraulic cylinder 3 and second hydraulic cylinder 8 connect and compose, one end of first rotating shaft 7 is installed first brake arm 1, the other end of first rotating shaft 7 is installed second brake arm 6, the cylinder body of first hydraulic cylinder 3 and second hydraulic cylinder 8 is hinged with second brake arm 6 respectively, the piston rod of first hydraulic cylinder 3 and first brake arm 1 are hinged, the piston rod of second hydraulic cylinder 8 and second brake arm 6 are hinged, first hydraulic cylinder 3 and second hydraulic cylinder 8 provide rotary power for first rotating shaft 7 jointly by first brake arm 1 and second brake arm 6 respectively, make arm 5 realize upset, angle between first brake arm 1 and second brake arm 6 is α, 0 degree＜α＜360 degree, promptly, as long as first brake arm 1 and second brake arm 6 do not overlap along the axis direction of first rotating shaft 7, guarantee first rotating shaft 7 Rotate 180 degree continuously, get final product.Through a large amount of experiments as can be known, α is when 45 degree are between 120 degree usually, and upset efficient is higher, and the upset of arm 5 is comparatively at the uniform velocity steady.
During upset workpiece 17, the piston rod of first hydraulic cylinder 3 and second hydraulic cylinder 8 bounces back simultaneously, drives arm 5 around 7 rotations of first rotating shaft.When 7 one-tenth sight alignments of the hinge fulcrum and first rotating shaft at second hydraulic cylinder, 8 two ends, only change the direction of motion of the piston rod of second hydraulic cylinder 8, promptly 8 piston rod is become by retraction and stretches out, and the piston rod movement direction of first hydraulic cylinder 3 is constant; First rotating shaft 7 continues upset, when 7 one-tenth sight alignments of the hinge fulcrum and first rotating shaft at first hydraulic cylinder, 3 two ends, only change the piston rod movement direction of first hydraulic cylinder 3, promptly, the piston rod of first hydraulic cylinder 3 is become by retraction and stretches out, first rotating shaft 7 continues upset, when arm 5 drives workpiece 17 and turns over turnback till.
The upset driving mechanism that is made of first hydraulic cylinder 3 and second hydraulic cylinder 8 can significantly be simplified the structure of described upset frock, reduces volume and quality, reduces production costs, and makes described upset frock really move towards market, is accepted by users.
The piston rod movement mode of above-mentioned first hydraulic cylinder 3 and second hydraulic cylinder 8 can be controlled by existing encoder.Encoder is installed on the base 2, on first rotating shaft 7 gear is installed, the gear of first rotating shaft 7 and encoder gears engaged, make encoder can write down the information that first rotating shaft 7 turns to any angle, and the rotation information of first rotating shaft 7 passed to existing CCUs such as Programmable Logic Controller or single-chip microcomputer, finally the angles of being opened according to first brake arm 1 and second brake arm, 6 differences by Programmable Logic Controller are controlled the piston rod of first hydraulic cylinder 3 and second hydraulic cylinder 8 respectively in the timing changing direction of motion.
For further simplifying described upset frock, improve the stability of its work, reduce manufacturing cost, as shown in Figure 2, base 2 is installed four-sensor 9, the 3rd sensor 10, second sensor 11 and first sensor 12, the 4th sensor block 16 is installed on first rotating shaft 7, the 3rd sensor block 15, second sensor block 14 and first sensor block 13, four-sensor 9, the 3rd sensor 10, second sensor 11 and first sensor 12 respectively with the 4th sensor block 16, the 3rd sensor block 15, four groups of inductions of corresponding formation are right one by one for second sensor block 14 and first sensor block 13, in first rotating shaft, 7 rotation processes, four groups of inductions are to triggering successively, and promptly wantonly two groups of inductions are not to triggering simultaneously.Concrete mounting means has: the first, and as shown in Figure 2, four-sensor 9, the 3rd sensor 10, second sensor 11 and first sensor 12 are in one line along first rotating shaft, 7 axis directions; The 4th sensor block 16, the 3rd sensor block 15, second sensor block 14 and first sensor block 13 are distributed on the arc surface of first rotating shaft 7, and appoint in the 4th sensor block 16, the 3rd sensor block 15, second sensor block 14 and first sensor block 13 between the two along the axis direction of first rotating shaft 7 and do not overlap.Second, the 4th sensor block 16, the 3rd sensor block 15, second sensor block 14 and first sensor block 13 are in one line along the axis direction of first rotating shaft 7, four-sensor 9, the 3rd sensor 10, second sensor 11 and first sensor 12 are distributed on the arc surface of first rotating shaft, 7 peripheries, and appoint in four-sensor 9, the 3rd sensor 10, second sensor 11 and the first sensor 12 between the two along the axis direction of first rotating shaft 7 and do not overlap.
During upset, first hydraulic cylinder 3 and second hydraulic cylinder 8 bounce back simultaneously, drive arm 5 around 7 rotations of first rotating shaft, when 7 one-tenth sight alignments of the hinge fulcrum and first rotating shaft at second hydraulic cylinder, 8 two ends, the 3rd sensor block 15 is promptly become by retraction and stretches out near the direction of motion of the 3rd sensor 10 changes second hydraulic cylinder 8; Continue upset, when 7 one-tenths sight alignments of hinge fulcrum and first rotating shaft at first hydraulic cylinder, 3 two ends, the direction of motion of second sensor block, 14 close second sensors, 11 changes, first hydraulic cylinders 3 is promptly become by retraction and stretches out; Continue upset, when first sensor block 13 during near first sensor 12, rotary movement is finished.
Action is opposite during return, and the 4th sensor block 16 is finished return during near four-sensor 9.
It is right that described sensor block triggers this induction when the sensor, and this induction is changed the direction of motion of first hydraulic cylinder 3 and second hydraulic cylinder, 8 pistons to signal being passed to existing control device such as Programmable Logic Controller by Controlled by Programmable Controller.
The sensing device that is connected and composed by four-sensor 9, the 3rd sensor 10, second sensor 11, first sensor 12, the 4th sensor block 16, the 3rd sensor block 15, second sensor block 14 and first sensor block 13 is simpler than coder structure, volume is littler, cost is lower, longer service life.Described sensor can be the proximity switch.
The present invention not technology contents of detailed description is known technology.
Claims (6)
1. vehicle frame 180 is spent the upset frocks, comprise base (2), it is characterized in that: base (2) is gone up arm (5) is installed, one end of arm (5) is hinged by first rotating shaft (7) and base (2), base (2) is gone up the upset driving mechanism is installed, the rotation execution unit of upset driving mechanism is connected with first rotating shaft (7), so that drive arm (5) base (2) upset relatively by first rotating shaft (7).
2. vehicle frame 180 degree upset frocks according to claim 1, it is characterized in that: arm (5) is gone up clamping device is installed, clamping device is got device by colluding of two symmetry installations and is constituted, each colludes and gets device by the 3rd hydraulic cylinder (21), second rotating shaft (4) and first suspension hook (22) connect and compose, the cylinder body of the 3rd hydraulic cylinder (21) and arm (5) are hinged, the neck of hook of the piston rod of the 3rd hydraulic cylinder (21) and first suspension hook (22) is hinged, first suspension hook (22) is hinged by second rotating shaft (4) and arm (5), and second rotating shaft (4) is positioned at the junction of arm (5) neck of hook and gib head.
3. vehicle frame 180 degree upset frocks according to claim 2, it is characterized in that: offer groove (23) on the arm (5), described two cover clamping mechanisms are installed in the saturating groove (23), the gib head of first suspension hook (22) of two cover clamping mechanisms partly exposes outside the arm (5), so that holding workpiece (17) is as the criterion.
4. vehicle frame 180 degree upset frocks according to claim 1, it is characterized in that: described upset driving mechanism is motor or hydraulic motor, motor or hydraulic motor output shaft are fixedlyed connected with first rotating shaft (7).
5. vehicle frame 180 degree upset frocks according to claim 1, it is characterized in that: described upset driving mechanism is by first brake arm (1), second brake arm (6), first hydraulic cylinder (3) and second hydraulic cylinder (8) connect and compose, one end of first rotating shaft (7) is installed first brake arm (1), the other end of first rotating shaft (7) is installed second brake arm (6), the cylinder body of first hydraulic cylinder (3) and second hydraulic cylinder (8) and second brake arm (6) are hinged, the piston rod of first hydraulic cylinder (3) and first brake arm (1) are hinged, the piston rod of second hydraulic cylinder (8) and second brake arm (6) are hinged, first hydraulic cylinder (3) and second hydraulic cylinder (8) are that first rotating shaft (7) provides rotary power to make arm (5) realize upset by first brake arm (1) and second brake arm (6) respectively, angle between first brake arm (1) and second brake arm (6) is α, 0 degree＜α＜360 degree.
6. vehicle frame 180 degree upset frocks according to claim 1, it is characterized in that: base (2) is installed four-sensor (9), the 3rd sensor (10), second sensor (11) and first sensor (12), first rotating shaft (7) is gone up the 4th sensor block (16) is installed, the 3rd sensor block (15), second sensor block (14) and first sensor block (13), four-sensor (9), the 3rd sensor (10), second sensor (11) and first sensor (12) respectively with the 4th sensor block (16), the 3rd sensor block (15), four groups of inductions of corresponding formation are right one by one for second sensor block (14) and first sensor block (13), in first rotating shaft (7) rotates, four groups of inductions are to triggering successively, and promptly wantonly two groups of inductions are not to triggering simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110184944 CN102241000B (en) | 2011-07-04 | 2011-07-04 | 180-degree turning tool for vehicle frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110184944 CN102241000B (en) | 2011-07-04 | 2011-07-04 | 180-degree turning tool for vehicle frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102241000A true CN102241000A (en) | 2011-11-16 |
| CN102241000B CN102241000B (en) | 2013-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110184944 Expired - Fee Related CN102241000B (en) | 2011-07-04 | 2011-07-04 | 180-degree turning tool for vehicle frame |
Country Status (1)
| Country | Link |
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| CN (1) | CN102241000B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104828759A (en) * | 2015-05-13 | 2015-08-12 | 山东水泊焊割设备制造有限公司 | Turnover unit and 180-degree turnover tool for frame |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10017451A1 (en) * | 2000-04-07 | 2001-10-18 | Busch Gerhard Gmbh | Machine for turning over stack of sheets of paper has plates between which stack fits and which are mounted on vertical frame which can be tipped over by hydraulic cylinders |
| CN2768956Y (en) * | 2005-02-06 | 2006-04-05 | 梁英 | Moving truck body turning machine |
| CN201058795Y (en) * | 2007-06-29 | 2008-05-14 | 南车戚墅堰机车有限公司 | Large-scale work-piece chain-manner tipping arrangement |
| CN201664844U (en) * | 2010-03-26 | 2010-12-08 | 江苏同和涂装机械有限公司 | Automated tipper of large workpiece |
| CN202162725U (en) * | 2011-07-04 | 2012-03-14 | 刘宪福 | Car frame 180 DEG turnover tool |
-
2011
- 2011-07-04 CN CN 201110184944 patent/CN102241000B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10017451A1 (en) * | 2000-04-07 | 2001-10-18 | Busch Gerhard Gmbh | Machine for turning over stack of sheets of paper has plates between which stack fits and which are mounted on vertical frame which can be tipped over by hydraulic cylinders |
| CN2768956Y (en) * | 2005-02-06 | 2006-04-05 | 梁英 | Moving truck body turning machine |
| CN201058795Y (en) * | 2007-06-29 | 2008-05-14 | 南车戚墅堰机车有限公司 | Large-scale work-piece chain-manner tipping arrangement |
| CN201664844U (en) * | 2010-03-26 | 2010-12-08 | 江苏同和涂装机械有限公司 | Automated tipper of large workpiece |
| CN202162725U (en) * | 2011-07-04 | 2012-03-14 | 刘宪福 | Car frame 180 DEG turnover tool |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104828759A (en) * | 2015-05-13 | 2015-08-12 | 山东水泊焊割设备制造有限公司 | Turnover unit and 180-degree turnover tool for frame |
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| Publication number | Publication date |
|---|---|
| CN102241000B (en) | 2013-03-06 |
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Owner name: SHANDONG SHUIPO WELDING + CUTTING EQUIPMENT MANUFA Free format text: FORMER OWNER: LIU XIANFU Effective date: 20120323 |
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Effective date of registration: 20120323 Address after: 272613, Shandong, Liangshan province Jining Town Industrial Zone boxing Applicant after: Shandong Shuibo Welding Cutting Equipment Manufacturing Co.,Ltd. Address before: 272613 Shandong city of Jining province Liangshan boxing Town Industrial Park Shandong Shuibo Co. Ltd. Applicant before: Liu Xianfu |
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Application publication date: 20111116 Assignee: SHANDONG LIANGSHAN ZHENGYANG TRAILER PARTS CO., LTD. Assignor: Shandong Shuibo Welding Cutting Equipment Manufacturing Co.,Ltd. Contract record no.: 2014370000092 Denomination of invention: 180-degree turning tool for vehicle frame Granted publication date: 20130306 License type: Exclusive License Record date: 20140520 |
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