CN108246885A - For the product supporting mechanism and stamping die of stamping die - Google Patents

For the product supporting mechanism and stamping die of stamping die Download PDF

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Publication number
CN108246885A
CN108246885A CN201611234741.1A CN201611234741A CN108246885A CN 108246885 A CN108246885 A CN 108246885A CN 201611234741 A CN201611234741 A CN 201611234741A CN 108246885 A CN108246885 A CN 108246885A
Authority
CN
China
Prior art keywords
supporting
stamping die
rocking bar
drive shaft
guiding axis
Prior art date
Application number
CN201611234741.1A
Other languages
Chinese (zh)
Inventor
张宇
朱雷
王立然
Original Assignee
长城汽车股份有限公司
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 长城汽车股份有限公司 filed Critical 长城汽车股份有限公司
Priority to CN201611234741.1A priority Critical patent/CN108246885A/en
Publication of CN108246885A publication Critical patent/CN108246885A/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00Tools as parts of machines covered by this subclass
    • B21D37/04Movable or exchangeable mountings for tools
    • B21D37/06Pivotally-arranged tools, e.g. disengageable
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00Tools as parts of machines covered by this subclass
    • B21D37/10Die sets; Pillar guides

Abstract

The present invention relates to stamping die fields, provide a kind of product supporting mechanism and stamping die for stamping die, and the product supporting mechanism includes:Rack (1) is provided with guiding axis (2) in the rack;Linear actuating device (3), the linear actuating device can be moved back and forth along perpendicular to the direction of guiding axis, and be provided with the drive shaft (4) that the opposite guiding axis extends in parallel;Rocking bar (5), the rocking bar is connected to drive shaft and is formed with the guide groove (5a) coordinated with guiding axis, which extends to cause relative rotation of the rocking bar with linear actuating device generation around drive shaft in linear actuating device reciprocatory movement along non-directional route;And material-supporting device (6), the material-supporting device are set on rocking bar.Product supporting mechanism of the present invention is conveniently adjusted product angle without increasing the complexity of transloading equipment and control difficulty, and improving production efficiency.

Description

For the product supporting mechanism and stamping die of stamping die

Technical field

The present invention relates to Stamping Die Technology field, more particularly to a kind of product supporting mechanisms for stamping die. On the basis of this, the invention further relates to a kind of stamping dies with the product supporting mechanism.

Background technology

With the development of Automated assembly production technology, the automated production equipments such as robot, mechanical arm are widely used In the processes such as molding, transhipment, application, assembling.For example, in vehicle body stamping procedure, it is often necessary to be transported and made using robot Part, and product angle is adjusted in transport process, to realize the stamping press of different processes in different optimal punching press angles.

However, realizing that product angle adjusts in product transport process using the transloading equipment such as robot, not only increase The mechanical complications of transloading equipment and control difficulty, and reduce the transport speed of product so that operating efficiency is relatively low.

Invention content

In view of this, the present invention is directed to propose a kind of product supporting mechanism for stamping die, in order to adjust product Angle is without increasing the complexity of transloading equipment and control difficulty, and improving production efficiency.

In order to achieve the above objectives, the technical proposal of the invention is realized in this way:

A kind of product supporting mechanism for stamping die, including:Rack is provided with guiding axis in the rack;Linearly Driving device, the linear actuating device can move back and forth, also, the linear drive along perpendicular to the direction of the guiding axis The drive shaft that relatively described guiding axis extends in parallel is provided on dynamic device;Rocking bar, the rocking bar are connected to the drive shaft simultaneously It is formed with the guide groove coordinated with the guiding axis, the guide groove extends along non-directional route with can be in the Linear Driving So that the relative rotation around the drive shaft occurs with the linear actuating device for the rocking bar in device reciprocatory movement;With And material-supporting device, the material-supporting device are set on the rocking bar.

Further, the linear actuating device is cylinder or hydraulic cylinder.

Further, the rack includes the relatively-stationary installing plate of cylinder barrel with the cylinder or hydraulic cylinder, the gas The piston rod of cylinder or hydraulic cylinder extends across the installing plate.

Further, the end set of the piston rod has limiting plate, and the drive shaft is set on the limiting plate.

Further, the limiting plate has the vertical plate part being oppositely arranged, and the drive shaft is set to the vertical plate part, and And the vertical plate part away from the end face of the piston rod includes parallel with the installing plate the first support end face and opposite institute State the second support end face that the first support end face is obliquely installed.

Further, the rocking bar includes body part and is located at the limiting plate and is connected to the support of the drive shaft Connecting portion, the guide groove are formed on the body part and extend along dog leg path.

Further, the limiting plate and the rocking bar are set as being supported in second support when the rocking bar rotates to be During end face, the extended end portion of the guiding axis and the guide groove is separately.

Further, the material-supporting device includes the retainer stent being fixedly connected on the rocking bar and is set to the support Product on material stent is made paper moulds block.

Further, the guiding axis and the drive shaft are horizontally extending, and the linear actuating device being capable of edge Vertical direction moves back and forth.

It is of the present invention to be had the advantage that for the product supporting mechanism of stamping die relative to the prior art:

(1) product supporting mechanism of the present invention drives drive shaft to move back and forth by linear actuating device, and then makes Rocking bar is obtained as drive shaft moves, and so that rocking bar opposite linear drives under the mating reaction of the guide groove on guide rod and rocking bar Dynamic device is rotated around drive shaft, so that stripper thereon also rotates with, realizes the adjustment of product angle;

(2) product supporting mechanism of the present invention can with the relatively independent setting of transloading equipment, because without increase turn The complexity of equipment and control difficulty are transported, is conducive to improve transport speed and operating efficiency, saves equipment cost.

Another object of the present invention is to propose a kind of stamping die, can realize greater efficiency with relatively low cost Product is transported and angle adjustment.

In order to achieve the above objectives, the technical proposal of the invention is realized in this way:

A kind of stamping die, the stamping die are provided with above-mentioned product supporting mechanism provided by the invention.

The stamping die is identical relative to advantage possessed by the prior art with above-mentioned product supporting mechanism, herein no longer It repeats.

Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.

Description of the drawings

The attached drawing for forming the part of the present invention is used to provide further understanding of the present invention, schematic reality of the invention Mode and its explanation are applied for explaining the present invention, is not constituted improper limitations of the present invention.In the accompanying drawings:

Fig. 1 is the dimensional structure diagram of the product supporting mechanism described in embodiment of the present invention;

Fig. 2 a are in lateral plan during initial position for the product supporting mechanism in Fig. 1;

Fig. 2 b are in lateral plan during straight line lift location for the product supporting mechanism in Fig. 1;

Fig. 2 c are in lateral plan during lifting rotation position for the product supporting mechanism in Fig. 1;

Fig. 2 d are in lateral plan during final position for the product supporting mechanism in Fig. 1;

Fig. 3 is the dimensional structure diagram of the rocking bar of the product supporting mechanism in Fig. 1;

Fig. 4 is the dimensional structure diagram of the limiting plate of the product supporting mechanism in Fig. 1.

Reference sign:

1- racks, 11- installing plates, 12-L templates, 2- guiding axis, 3- linear actuating devices, 31- piston rods, 4- drive shafts, 5- rocking bars, 5a- guide grooves, 51- body parts, 52- support connecting portions, 6- material-supporting devices, 61- retainer stents, 62- products are made paper moulds Block, 7- limiting plates, 71- vertical plate parts, 71a- first support end face, and 71b- second supports end face.

Specific embodiment

It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can To be combined with each other.

The present invention will be described in detail below with reference to the accompanying drawings and with reference to embodiment.

With reference to shown in Fig. 1, according to a kind of product supporting mechanism for stamping die of preferred embodiment of the present invention, packet Including rack 1, linear actuating device 3, rocking bar 5 and material-supporting device 6 etc..Wherein, guiding axis 2, Linear Driving dress are provided in rack 1 It puts and the drive shaft 4 that the opposite guiding axis 2 extends in parallel is provided on 3 and the drive shaft 4 can be driven along perpendicular to guiding axis 2 Direction moves back and forth.Rocking bar 5 is pivotally connected by drive shaft 4 and linear actuating device 3, and guide groove is also formed on the rocking bar 5 5a, guide groove 5a extend along non-directional route (such as curve, broken line).The guiding axis 2 and guide groove 5a phases being set in rack 1 Cooperation, as a result, when linear actuating device 3 drive 4 reciprocatory movement of drive shaft in, enable to 5 opposite linear of rocking bar drive Relative rotation around drive shaft 4 occurs for device 3 (and rack 1), it is thus possible to which adjustment is set to the material-supporting device 6 on rocking bar 5 Angle.

By above-mentioned setting, the product transhipment and angle that greater efficiency can be realized with relatively low cost adjust.The present invention Product supporting mechanism can be used cooperatively with transloading equipments such as mechanical arms, it is possible thereby to simplify transloading equipment mechanical complications With control difficulty, convenient for improving transport speed, operating efficiency is promoted.

According to above-mentioned, the main mating reaction using guiding axis 2 and guide groove 5a of the present invention, by linear actuating device 3 The rotary motion for being converted to rocking bar 5 and material-supporting device 6 is moved back and forth, the product angle on material-supporting device 6 is thus adjusted, optimal Punching press angle carries out the stamping press of different processes.Thus, it is possible to realize above-mentioned technical proposal by a variety of different structure forms, A kind of preferred embodiment and its variant embodiment of the present invention is illustrated below with reference to attached drawing.

With continued reference to shown in Fig. 1, in the preferred embodiment, linear actuating device 3 is cylinder or hydraulic cylinder, as a result, The reciprocating motion of above-mentioned linear actuating device 3 refers to that its piston rod 31 or cylinder barrel (correspond to that cylinder barrel is fixed and piston is consolidated respectively Fixed pattern cylinder, hydraulic cylinder) reciprocal telescopic movement.In addition, in order to realize Linear Driving, linear actuating device 3 of the invention Can be any other appropriate linear actuating device, such as linear electric machine, and accordingly adjust its opposite installation with 1 grade of rack Relationship.

In the shown embodiment, rack 1 includes the relatively-stationary installing plate 11 of cylinder barrel with cylinder, as rack 1 can be with Installation can set L-type plate on cylinder barrel or being formed as cylinder barrel, and for the ease of installing guiding axis 2 on installing plate 11, so as to It is installed so that the reciprocal telescopic direction for extending perpendicularly to piston rod 31 of guiding axis 2.Piston rod 31 passes through installing plate 11 Extension, and have limiting plate 7 in end set, drive shaft 4 is set on limiting plate 7.It should be understood that installing plate 11 is fixed In cylinder barrel and piston rod 31 is more stablized only for product supporting mechanism in operation process, in order to realize linear fortune The conversion of trend rotary motion, cardinal principle are that drive shaft 4 and the spacing of guiding axis 2 change the guide groove forced on rocking bar 5 5a changes with 2 cooperation position of guiding axis, thus, in other embodiments, installing plate 11 can in any way with gas The cylinder barrel of cylinder is relatively fixed, and piston rod 31 also can freely extend and be not passed through installing plate 11.Thus, it is possible to be appropriately arranged be, for example, Other linear actuating devices 3 of linear electric machine form and the opposite installation relation of rack 1, as long as it can drive 4 phase of drive shaft To guiding axis 2 closer or far from can realize the rotary motion (swing) of rocking bar 5 and material-supporting device 6 thereon.

With reference to shown in Fig. 2 a to Fig. 2 d, product supporting mechanism of the invention is commonly used in realization product relatively horizontal orientation Angle adjusts, and therefore, guiding axis 2 and drive shaft 4 could be provided as horizontally extending, and linear actuating device 3 is along vertical side To reciprocating motion.As a result, in the shown embodiment, guide groove 5a extends in perpendicular (is formed in the body part of rocking bar 5 On 51), and its extension path is broken line.In the initial position shown in Fig. 2 a, material-supporting device 6 is generally in level orientation.In order to Product angle is adjusted, linear actuating device 3 drives drive shaft 4 to ramp, and the vertical section and guiding axis 2 of guide groove 5a are substantially not With the active force that rocking bar 5 is enabled to rotate, material-supporting device 6 ramps, as shown in Figure 2 b.With reference to Fig. 2 c, Linear Driving Device 3 continues that drive shaft 4 is driven to rise, and after by inflection point, guiding axis 2 will impose guide groove 5a downward reaction Power so that rocking bar 5 rotates counterclockwise around drive shaft 4, realizes the angle adjustment of material-supporting device 6, until the end shown in Fig. 2 d Stop bit is put, and angle adjustment finishes.In the preferred embodiment, extreme angles adjustment position (top dead centre, lower dead center) can be by Length, the angle of guide groove 5a limits, but which increase design difficulties, and it is corresponding to retainer to need guide groove 5a structure settings The target adjustment angle of device 6.For this purpose, the preferred embodiment of the present invention limits extreme angles by limiting plate 7 adjusts position, It below will be to this detailed description.

With reference to shown in Fig. 3 and Fig. 4, limiting plate 7 has the vertical plate part 71 being oppositely arranged, and drive shaft 4 is installed on the vertical plate part 71;Rocking bar 5 includes body part 51 and is located at vertical plate part 71 and is connected to the support connecting portion 52 of drive shaft 4.Vertical plate part 71 Include the first horizontal support end face 71a and opposite first support end face 71a inclined second away from the end face of piston rod 31 Support end face 71b.As a result, in the initial position shown in Fig. 2 a and the straight line lift location shown in Fig. 2 b, rocking bar 5 is supported in On one support end face 71a;At the lifting rotation position shown in Fig. 2 c, rocking bar 5 be detached from first support end face 71a contact and It rotates;Until the final position shown in Fig. 2 d, rocking bar 5 is contacted with the second support end face 71b, reaches the limit of rotation position. At this point, the extended end portion (lower end) of guiding axis 2 and guide groove 5a is separately.Thus, it is possible to it is simply set as so that limiting First support end face 71a of plate 7 and the second support end face 71b correspond to the initial angle of material-supporting device 6 and terminate rotation angle, Two extreme position can be limited.

By above-mentioned as can be seen that drive shaft 4 is essentially utilized as the relative rotation axis of rocking bar 5 and limiting plate 7, guiding axis 2 Need the shift position in guide groove 5a.For the ease of this relative motion, avoid clamping stagnation occurring, such as drive shaft 4 can be made It is fixed on one of rocking bar 5 and limiting plate 7, and passes through bearing and be pivotally connected in another one;Guiding axis 2 and guide groove 5a Matching part the element of the reductions friction such as roller can be also set.

Typically, material-supporting device 6 can include the retainer stent 61 being fixedly connected on rocking bar 5 and be set to the retainer branch Product on frame 61 is made paper moulds block 62, for example, retainer stent 61 can be welded on the upper surface of support connecting portion 52 of rocking bar 5.

Product supporting mechanism provided by the invention is described in detail above, on this basis, the present invention also provides Stamping die with above-mentioned product supporting mechanism, so as to realize the product transhipment of greater efficiency and angle with relatively low cost Degree adjustment.

The foregoing is merely the better embodiments of the present invention, are not intended to limit the invention, all the present invention's Within spirit and principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.

Claims (10)

1. a kind of product supporting mechanism for stamping die, which is characterized in that the product supporting mechanism includes:
Rack (1) is provided with guiding axis (2) on the rack (1);
Linear actuating device (3), the linear actuating device (3) can back and forth transport along perpendicular to the direction of the guiding axis (2) It is dynamic, also, the drive shaft (4) that relatively described guiding axis (2) extends in parallel is provided on the linear actuating device (3);
Rocking bar (5), the rocking bar (5) are connected to the drive shaft (4) and are formed with the guide groove coordinated with the guiding axis (2) (5a), the guide groove (5a) extend along non-directional route with can be in the linear actuating device (3) reciprocatory movement So that the relative rotation around the drive shaft (4) occurs with the linear actuating device (3) for the rocking bar (5);And
Material-supporting device (6), the material-supporting device (6) are set on the rocking bar (5).
2. the product supporting mechanism according to claim 1 for stamping die, which is characterized in that the Linear Driving dress (3) are put as cylinder or hydraulic cylinder.
3. the product supporting mechanism according to claim 2 for stamping die, which is characterized in that rack (1) packet It includes and is worn with the relatively-stationary installing plate of the cylinder barrel of the cylinder or hydraulic cylinder (11), the piston rod (31) of the cylinder or hydraulic cylinder Cross the installing plate (11) extension.
4. the product supporting mechanism according to claim 3 for stamping die, which is characterized in that the piston rod (31) End set have limiting plate (7), the drive shaft (4) is set on the limiting plate (7).
5. the product supporting mechanism according to claim 4 for stamping die, which is characterized in that the limiting plate (7) With the vertical plate part (71) being oppositely arranged, the drive shaft (4) is set to the vertical plate part (71), also, the vertical plate part (71) include parallel with the installing plate (11) the first support end face (71a) and phase away from the end face of the piston rod (31) The second support end face (71b) being obliquely installed to the described first support end face (71a).
6. the product supporting mechanism according to claim 5 for stamping die, which is characterized in that rocking bar (5) packet It includes body part (51) and is located at the limiting plate (7) and is connected to the support connecting portion (52) of the drive shaft (4), it is described to lead It is formed on the body part (51) to slot (5a) and extends along dog leg path.
7. the product supporting mechanism according to claim 6 for stamping die, which is characterized in that the limiting plate (7) It is set as with the rocking bar (5) when the rocking bar (5) rotates to be and is supported in the second support end face (71b), the guiding The extended end portion of axis (2) and the guide groove (5a) is separately.
8. the product supporting mechanism according to claim 1 for stamping die, which is characterized in that the material-supporting device (6) including the retainer stent (61) being fixedly connected on the rocking bar (5) and the product being set on the retainer stent (61) It makes paper moulds block (62).
9. the product supporting mechanism as claimed in any of claims 1 to 8 for stamping die, which is characterized in that The guiding axis (2) and the drive shaft (4) are horizontally extending, and the linear actuating device (3) can be vertically It moves back and forth.
10. a kind of stamping die, which is characterized in that the stamping die is provided with according to any one institute in claim 1-9 The product supporting mechanism stated.
CN201611234741.1A 2016-12-28 2016-12-28 For the product supporting mechanism and stamping die of stamping die CN108246885A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611234741.1A CN108246885A (en) 2016-12-28 2016-12-28 For the product supporting mechanism and stamping die of stamping die

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611234741.1A CN108246885A (en) 2016-12-28 2016-12-28 For the product supporting mechanism and stamping die of stamping die

Publications (1)

Publication Number Publication Date
CN108246885A true CN108246885A (en) 2018-07-06

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CN201611234741.1A CN108246885A (en) 2016-12-28 2016-12-28 For the product supporting mechanism and stamping die of stamping die

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CN (1) CN108246885A (en)

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Publication number Priority date Publication date Assignee Title
CN101106874A (en) * 2007-08-14 2008-01-16 苏州昆拓冷机有限公司 Rack for enclosure product assembly
CN201436904U (en) * 2009-03-26 2010-04-14 益典工业股份有限公司 Structure for adjusting angle of desktop
CN101857010A (en) * 2009-04-13 2010-10-13 黄世贤 Saddle bracket for wiper adapter
CN201696574U (en) * 2010-06-23 2011-01-05 徐州惠科自动化工程有限公司 Guide slot type motion conversion mechanism
CN202231022U (en) * 2011-07-31 2012-05-23 广东奥其斯科技有限公司 Angle-adjustable minisize solar energy generating device
CN202527612U (en) * 2012-05-08 2012-11-14 苏州金鸿顺汽车部件股份有限公司 Turnover mechanism for stamping die
CN202741619U (en) * 2012-04-19 2013-02-20 浙江金刚汽车有限公司 Angle-adjustable stamping part sliding device
CN203621314U (en) * 2014-01-06 2014-06-04 浙江金奥汽车装备有限公司 Automatic stamping die
CN203632603U (en) * 2013-11-14 2014-06-04 江苏天宇光伏科技有限公司 Solar panel supporting bracket
CN104029151A (en) * 2014-06-23 2014-09-10 力帆实业(集团)股份有限公司 Angle-rotatable rapid pressing clamp
CN203973964U (en) * 2014-06-30 2014-12-03 圣美精密工业(昆山)有限公司 Mold slanted core-pulling mechanism
CN204481739U (en) * 2015-03-08 2015-07-15 深圳市海纳通机器人有限公司 A kind of solar panel bracing frame
CN204565490U (en) * 2015-03-24 2015-08-19 大连奥托股份有限公司 Swing and translation transformation mechanism
CN204934984U (en) * 2015-09-14 2016-01-06 曾盛 A kind of stationary fixture of adjustable angle
CN205172171U (en) * 2015-11-17 2016-04-20 蒙阴县飞达矿山工程机械有限公司 Rotatable rig support
CN205218604U (en) * 2015-12-24 2016-05-11 德阳市国泰冶金设备制造有限公司 A bracket for fixing arc work piece
CN205387331U (en) * 2015-12-24 2016-07-20 艾克玛(惠州)输送设备有限公司 Bracket with adjustable angle
CN205393897U (en) * 2016-03-16 2016-07-27 山东省博兴县开元车辆配件有限公司 Welding strutting arrangement

Patent Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101106874A (en) * 2007-08-14 2008-01-16 苏州昆拓冷机有限公司 Rack for enclosure product assembly
CN201436904U (en) * 2009-03-26 2010-04-14 益典工业股份有限公司 Structure for adjusting angle of desktop
CN101857010A (en) * 2009-04-13 2010-10-13 黄世贤 Saddle bracket for wiper adapter
CN201696574U (en) * 2010-06-23 2011-01-05 徐州惠科自动化工程有限公司 Guide slot type motion conversion mechanism
CN202231022U (en) * 2011-07-31 2012-05-23 广东奥其斯科技有限公司 Angle-adjustable minisize solar energy generating device
CN202741619U (en) * 2012-04-19 2013-02-20 浙江金刚汽车有限公司 Angle-adjustable stamping part sliding device
CN202527612U (en) * 2012-05-08 2012-11-14 苏州金鸿顺汽车部件股份有限公司 Turnover mechanism for stamping die
CN203632603U (en) * 2013-11-14 2014-06-04 江苏天宇光伏科技有限公司 Solar panel supporting bracket
CN203621314U (en) * 2014-01-06 2014-06-04 浙江金奥汽车装备有限公司 Automatic stamping die
CN104029151A (en) * 2014-06-23 2014-09-10 力帆实业(集团)股份有限公司 Angle-rotatable rapid pressing clamp
CN203973964U (en) * 2014-06-30 2014-12-03 圣美精密工业(昆山)有限公司 Mold slanted core-pulling mechanism
CN204481739U (en) * 2015-03-08 2015-07-15 深圳市海纳通机器人有限公司 A kind of solar panel bracing frame
CN204565490U (en) * 2015-03-24 2015-08-19 大连奥托股份有限公司 Swing and translation transformation mechanism
CN204934984U (en) * 2015-09-14 2016-01-06 曾盛 A kind of stationary fixture of adjustable angle
CN205172171U (en) * 2015-11-17 2016-04-20 蒙阴县飞达矿山工程机械有限公司 Rotatable rig support
CN205218604U (en) * 2015-12-24 2016-05-11 德阳市国泰冶金设备制造有限公司 A bracket for fixing arc work piece
CN205387331U (en) * 2015-12-24 2016-07-20 艾克玛(惠州)输送设备有限公司 Bracket with adjustable angle
CN205393897U (en) * 2016-03-16 2016-07-27 山东省博兴县开元车辆配件有限公司 Welding strutting arrangement

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