CN208840796U - Stringer assembly reverse welding device - Google Patents

Stringer assembly reverse welding device Download PDF

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Publication number
CN208840796U
CN208840796U CN201821028057.2U CN201821028057U CN208840796U CN 208840796 U CN208840796 U CN 208840796U CN 201821028057 U CN201821028057 U CN 201821028057U CN 208840796 U CN208840796 U CN 208840796U
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CN
China
Prior art keywords
overturning
fulcrum bearing
rod
positioning pin
cylinder
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201821028057.2U
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Chinese (zh)
Inventor
胡承前
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHONGQING JIA FENG AUTO PARTS Co Ltd
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CHONGQING JIA FENG AUTO PARTS Co Ltd
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Priority to CN201821028057.2U priority Critical patent/CN208840796U/en
Application granted granted Critical
Publication of CN208840796U publication Critical patent/CN208840796U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of stringer assembly reverse welding devices, including overturning pedestal, axis mechanism is overturn there are two fixing on the top of the overturning pedestal, workpiece grip mechanism is rotatablely connected between two overturning axis mechanisms, the also fixed overturning power mechanism on overturning pedestal, the overturning power mechanism is for driving workpiece grip mechanism to overturn, it is additionally provided with horizontal buffer limit block on the overturning pedestal, which is used to be buffered and be limited when the workpiece grip mechanism restores horizontal position.Its remarkable result is: driving welding fixture rotation by tumble cylinder, substantially reduces flip-flop transition, improve production efficiency;Welding precision is high, and the qualification rate of product greatly improves.

Description

Stringer assembly reverse welding device
Technical field
The utility model relates to arrive automobile part production technique field, specifically, being a kind of stringer assembly overturning weldering Connection device.
Background technique
Vehicle frame is most important load bearing component in automobile, and longitudinal beam is one of key part therein, so vertical Beam plays the role of important carrying on automobile, and straight frame, central frame of automobile etc. contain stringer.Stringer is usual It is stamped to form with low alloy steel plate, section configuration is generally groove profile, and also some is made into Z-shaped or box equal section form.
Currently, automobile longitudinal girder welding production line generally takes left and right front longitudinal beam unit fixture separately to develop, arrange that this makes 2 sleeve clamps are at least developed in the welding of left and right stringer assembly, 2 welding posts need to be arranged in and be both needed to increase corresponding welding set Standby, not only structure is complicated, equipment input cost is big, but also influences production efficiency.
In addition, stringer is irregular shaped piece, as shown in Figure 1, cannot be to the upper of stringer using traditional welding fixture Lower plate is effectively fixed, and is easy to appear displacement in welding, so that the product quality after welding cannot be guaranteed;Together When, after a face is completed in welding, usually by after manually overturning to workpiece and relocating clampings, welding is turned over again after the completion It turns over, this working method large labor intensity, production efficiency is low, and the accuracy of bond pad locations is also difficult to ensure.
Summary of the invention
In view of the deficiencies of the prior art, the purpose of the utility model is to provide a kind of stringer assembly reverse welding devices, should Apparatus structure is simple, maintenance operation is convenient, automatic turning can be carried out to workpiece, and product qualification rate is high after welding.
In order to achieve the above objectives, the technical solution adopted in the utility model is as follows:
A kind of stringer assembly reverse welding device, key are: solid on the top of the overturning pedestal including overturning pedestal Axis mechanism is overturn there are two fixed, workpiece grip mechanism is rotatablely connected between two overturning axis mechanisms, on the overturning pedestal Also fixed overturning power mechanism, the overturning power mechanism is for driving the workpiece grip mechanism to flip an angle;
The workpiece grip mechanism includes fulcrum bearing, is successively fixed with the first pressure from right to left in the rear side of the fulcrum bearing Tight mechanism, the second hold-down mechanism, third hold-down mechanism and the 4th hold-down mechanism, the middle part of the fulcrum bearing equipped with respectively with institute The Auxiliary support that the first hold-down mechanism, the second hold-down mechanism, third hold-down mechanism are matched with the 4th hold-down mechanism is stated, described Master positioning pin and secondary positioning pin are also respectively provided in the middle part of fulcrum bearing, wherein the master positioning pin is fixedly arranged on the right side of fulcrum bearing Side, the pair positioning pin is set to the left side of fulcrum bearing, and the pair positioning pin is connected with the piston rod of secondary positioning cylinder, the pair Positioning cylinder is used to that secondary positioning pin to be driven to go up and down and is fixedly connected on the lower section of the fulcrum bearing, sets on front side of the fulcrum bearing It is equipped with the chock mechanism for being limited to stringer upper and lower plates, and the installation site phase of the chock mechanism and the secondary positioning pin It adapts to;
The overturning power mechanism includes the attachment base being fixedly arranged on the overturning pedestal, is rotatablely connected on the attachment base There is tumble cylinder, the telescopic rod of the tumble cylinder is fixedly connected with the one end for the connecting rod being positioned above, the connecting rod The other end be connected by shaft with one end of drive rod, the other end of the drive rod is connected to the workpiece grip mechanism, When the piston rod of the tumble cylinder stretches out, the drive rod is around shaft rotation and close to the connecting rod.
Further, flip angle position limiting structure is provided on the overturning power mechanism.
Further, the flip angle position limiting structure includes adjusting screw rod and spacing head, and the adjusting screw rod is worn In in the connecting rod, being connected with adjusting nut on the adjusting screw rod of the connecting rod two sides, the adjusting nut is for adjusting The length that the adjusting screw rod stretches out the connecting rod obliquely is saved, the spacing head is fixedly arranged on the drive rod, when described After workpiece grip mechanism overturning, the connecting rod and the drive rod are close, the end of the adjusting screw rod and the spacing head It abuts against.
Further, the drive rod is in zigzag, and upper part is connected with the workpiece grip mechanism, sets in the middle The spacing head is set, the lower end of the drive rod is connected with the connecting rod.
Further, the chock mechanism includes the chock cylinder being fixed in the fulcrum bearing by cylinder mounting base, Column plug is connected on the piston rod of the chock cylinder, which is arranged towards the secondary positioning pin, in the column plug Lower section is provided with supporting block.
Further, support frame, the chock are further fixed in the fulcrum bearing between the chock cylinder and column plug The piston rod of cylinder is arranged in support frame as described above, and is also installed respectively beyond the Great Wall in the column of chock cylinder piston rod two sides There is a guide rod, and the guide rod is arranged in the pilot hole opened up on support frame as described above.
By the chock mechanism of above structure, the circular hole that can be formed between the upper and lower plates to stringer assembly is limited, from And improve the positioning accuracy of stringer assembly.
Further, at least one auxiliary positioning pin is additionally provided in the middle part of the fulcrum bearing, which leans on The nearly master positioning pin setting.
By the multiple location mechanism of master positioning pin, secondary positioning pin and auxiliary positioning pin, enable stringer assembly by Good location helps to improve welding quality.
Further, it is additionally provided with horizontal buffer limit block on the overturning pedestal, which is used for It is buffered and is limited when the workpiece grip mechanism restores horizontal position.
Further, the fulcrum bearing includes support plate, supporting frame and cushion block, and the support plate is fixed on the supporting frame Top, the cushion block is installed in the quadrangle of the bearing frame bottom, is offered on the support plate and multiple removes repeated hole.
Using the above structure, so that the structure of fulcrum bearing is simple, clamp weight can be mitigated, not only reduce consumptive material, dropped Low manufacturing cost, and convenient for transfer, install and use and later maintenance.
The remarkable result of the utility model is: structure is simple, easy to use, and maintenance operation is convenient, and manufacturing cost is low, passes through Tumble cylinder drives welding fixture rotation, substantially reduces flip-flop transition, improves production efficiency;And pass through multiple compacting machines Organic cooperation of structure and positioning mechanism, it can be ensured that stringer assembly is not in displacement in the welding process, and welding precision is high, is produced The qualification rate of product greatly improves.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the stringer assembly;
Fig. 2 is the structural schematic diagram of the utility model;
Fig. 3 is the left view of the utility model;
Fig. 4 is the structural schematic diagram of the workpiece grip mechanism;
Fig. 5 is the main view of the workpiece grip mechanism;
Fig. 6 is the right view of the workpiece grip mechanism;
Fig. 7 is the top view of the workpiece grip mechanism;
Fig. 8 is the machining state figure of the workpiece grip mechanism;
Fig. 9 is the structural schematic diagram of the overturning power mechanism;
Figure 10 is the structural schematic diagram after the utility model is flipped.
Specific embodiment
Specific embodiment of the present utility model and working principle are described in further detail with reference to the accompanying drawing.
As shown in Figure 2 and Figure 3, a kind of stringer assembly reverse welding device, including overturning pedestal 1, in the overturning pedestal 1 Top it is fixed there are two axis mechanism 2 is overturn, workpiece grip mechanism 3 is rotatably connected between two overturning axis mechanisms 2, in institute Also fixed overturning power mechanism 4 on overturning pedestal 1 is stated, the overturning power mechanism 4 is for driving the workpiece grip mechanism 3 to overturn Certain angle.
Preferably, it is additionally provided with horizontal buffer limit block 5 on the overturning pedestal 1, which is used for It is buffered and is limited when the workpiece grip mechanism 3 restores horizontal position.The horizontal buffer limit block 5 is used in the work Part clamping device 3 restores to be buffered and limited when horizontal position, so may insure that workpiece grip mechanism 3 is in level State, two avoid its inertia from causing to reversely rotate when may insure 3 Reversion Level position of workpiece grip mechanism, to cause to drive The damage of lever 44 and connecting rod 43.
As a kind of preferred embodiment, the overturning pedestal 1 includes the pedestal 11 for being divided into two sides, two pedestals 11 Between be connected by more connecting rods 12, at the top of the pedestal 11, the overturning axis mechanism 2 is set.
Referring to 4~attached drawing of attached drawing 7, the workpiece grip mechanism 3 include fulcrum bearing 31, the fulcrum bearing 31 rear side from It is right to be successively fixed with the first hold-down mechanism 32, the second hold-down mechanism 33, third hold-down mechanism 34 and the 4th hold-down mechanism 35 to a left side, The middle part of the fulcrum bearing 31 be equipped with respectively with first hold-down mechanism 32, the second hold-down mechanism 33, third hold-down mechanism 34 Auxiliary supports 36 matched with the 4th hold-down mechanism 35 are also respectively provided with master positioning at the middle part of the fulcrum bearing 31 Pin 37 and secondary positioning pin 38, wherein the master positioning pin 37 is fixedly arranged on the right side of fulcrum bearing 31, the pair positioning pin 38 is set to branch The left side of seat 31 is held, and the pair positioning pin 38 is connected with the piston rod of secondary positioning cylinder 39, the pair positioning cylinder 39 is used for It drives secondary positioning pin 38 to go up and down and is fixedly connected on the lower section of the fulcrum bearing 31, setting is useful in the front side of the fulcrum bearing 31 In the chock mechanism 310 limited to stringer upper and lower plates, and the installation site of the chock mechanism 310 and the secondary positioning pin 38 It is adapted.
The fulcrum bearing 31 includes that support plate 31a, supporting frame 31b and cushion block 31c, the support plate 31a are fixed on described The top of supporting frame 31b is installed the cushion block 31c in the quadrangle of the bottom the supporting frame 31b, is opened up on the support plate 31a Have and multiple removes repeated hole 31d.
The chock mechanism 310 includes the chock cylinder being fixed in the fulcrum bearing 31 by cylinder mounting base 310a 310b is connected with column plug 310c on the piston rod of chock cylinder 310b, and the column plug 310c is towards the secondary positioning pin 38 Setting, is provided with supporting block 310d below the column plug 310c;
In order to further ensure the stability of column plug 310c sliding, in the chock cylinder 310b and column plug Support frame 310e is further fixed in fulcrum bearing 31 between 310c, the piston rod of the chock cylinder 310b is arranged in the support In frame 310e, and a guide rod is also separately installed on the column plug 310c of chock cylinder 310b piston rod two sides 310f, and the guide rod 310f is arranged in the pilot hole opened up on support frame as described above 310e.
In order to promote positioning accuracy in this example, at least one auxiliary positioning pin is additionally provided at the middle part of the fulcrum bearing 31 311, which is arranged close to the master positioning pin 37.
In this example, first hold-down mechanism 32, the second hold-down mechanism 33, third hold-down mechanism 34 and the 4th hold-down mechanism 35 structure is almost the same, is only to be adaptively adjusted at pressure head position for the impetus on stringer assembly, therefore right The structure of each hold-down mechanism is not described one by one, is only illustrated by taking the 4th hold-down mechanism 5 as an example:
4th hold-down mechanism 5 includes the erection support 351 being fixed in the fulcrum bearing 31, the erection support Connecting rod 352 is installed, the rear end of the connecting plate 352 is hinged with compression cylinder 353, and the upper end of the connecting plate 352 is logical on 351 The rotation connection of link block 354 is crossed to the middle part for compressing bracket 355, the rear end of the compression bracket 355 and the compression cylinder 353 Piston rod is connected, and the end for compressing bracket 355 is connected with pressure head 356.
Stringer assembly is placed in fulcrum bearing 31 when production, and passes through master positioning pin 37, secondary positioning pin 38, auxiliary positioning pin 311 pairs its position, stretched out wherein secondary positioning pin 38 is driven by secondary positioning cylinder 39, chock cylinder driven after the completion of positioning Column plug 310c is protruded into the round hole of stringer assembly left end and is limited by 310b, finally controls first hold-down mechanism 32, stringer assembly is fixed by the second hold-down mechanism 33, third hold-down mechanism 34 with the 4th hold-down mechanism 35, can be welded Connect processing.
Referring to attached drawing 9, the overturning power mechanism 4 includes the attachment base 41 being fixedly arranged on the overturning pedestal 1, in the company Tumble cylinder 42, the telescopic rod of the tumble cylinder 42 and the one of the connecting rod 43 being positioned above are rotatably connected on joint chair 41 End is fixedly connected, and the other end of the connecting rod 43 is connected by shaft with one end of drive rod 44, the drive rod 44 it is another One end is connected to the workpiece grip mechanism 3, and when the piston rod of the tumble cylinder 42 stretches out, the drive rod 44 is around institute State shaft rotation and close to the connecting rod 43.
Flip angle position limiting structure, the overturning are provided on the overturning power mechanism 4 from can also be seen that in Fig. 9 Angle limiting structure includes adjusting screw rod 45 and spacing head 46, and the adjusting screw rod 45 is arranged in the connecting rod 43, in institute It states and is connected with adjusting nut 47 on the adjusting screw rod 45 of 43 two sides of connecting rod, the adjusting nut 47 is for adjusting the adjusting spiral shell Bar 45 stretches out the length of the connecting rod 43 obliquely, and the spacing head 46 is fixedly arranged on the drive rod 44, when the workpiece After clamping device 3 is overturn, the connecting rod 43 and the drive rod 44 are close, the end of the adjusting screw rod 45 and the limit First 46 abut against.
The drive rod 44 is in zigzag, and upper part is connected with the workpiece grip mechanism 3, in the middle described in setting Spacing head 46, the lower end of the drive rod 44 are connected with the connecting rod 43.
In this example, the both ends of the workpiece grip mechanism 3 are rotationally connected with the overturning pedestal 1 by overturning axis mechanism 2 On, therefore, after having welded a face, as long as giving an external force, that is, workpiece grip mechanism 3 may make to turn around central shaft It is dynamic, specific switching process are as follows:
The piston rod of control tumble cylinder 42 stretches out obliquely, and then drives drive rod 44 to send out around shaft by connecting rod 43 Raw rotation, so that drive rod 44 drives workpiece grip mechanism 3 to be flipped, after overturning by above-mentioned flip angle position-limit mechanism into Row positioning, can carry out the welding processing of workpiece another side.
In the specific implementation process, clump weight is loaded according to the actual situation on workpiece grip mechanism 3, increase its overturning flat It weighs smooth;And insurance guardrail can be added in overturning radius.

Claims (9)

1. a kind of stringer assembly reverse welding device, it is characterised in that: including overturning pedestal (1), on the top of the overturning pedestal (1) End is fixed to be rotatably connected to workpiece grip mechanism (3) between two overturning axis mechanisms (2) there are two axis mechanism (2) are overturn, Also fixed overturning power mechanism (4) on the overturning pedestal (1), the overturning power mechanism (4) is for driving the piece-holder Mechanism (3) flips an angle;
The workpiece grip mechanism (3) includes fulcrum bearing (31), is successively fixed from right to left in the rear side of the fulcrum bearing (31) There are the first hold-down mechanism (32), the second hold-down mechanism (33), third hold-down mechanism (34) and the 4th hold-down mechanism (35), described The middle part of fulcrum bearing (31) be equipped with respectively with first hold-down mechanism (32), the second hold-down mechanism (33), third hold-down mechanism (34) Auxiliary support (36) matched with the 4th hold-down mechanism (35) is also respectively provided in the middle part of the fulcrum bearing (31) Master positioning pin (37) and secondary positioning pin (38), wherein the master positioning pin (37) is fixedly arranged on the right side of fulcrum bearing (31), the pair Positioning pin (38) is set to the left side of fulcrum bearing (31), and the pair positioning pin (38) is connected with the piston rod of secondary positioning cylinder (39) It connects, the pair positioning cylinder (39) is for driving secondary positioning pin (38) to go up and down and being fixedly connected under the fulcrum bearing (31) Side, is provided with the chock mechanism (310) for being limited to stringer upper and lower plates, and the plug on front side of the fulcrum bearing (31) Block mechanism (310) and the installation site of the secondary positioning pin (38) are adapted;
Overturning power mechanism (4) includes the attachment base (41) being fixedly arranged on overturning pedestal (1), in the attachment base (41) On be rotatably connected to tumble cylinder (42), the telescopic rod of the tumble cylinder (42) be positioned above the one of connecting rod (43) End is fixedly connected, and the other end of the connecting rod (43) is connected by shaft with one end of drive rod (44), the drive rod (44) the other end is connected to the workpiece grip mechanism (3), when the piston rod of the tumble cylinder (42) stretches out, the drive Lever (44) is around shaft rotation and close to the connecting rod (43).
2. stringer assembly reverse welding device according to claim 1, it is characterised in that: the overturning power mechanism (4) On be provided with flip angle position limiting structure.
3. stringer assembly reverse welding device according to claim 2, it is characterised in that: the flip angle position limiting structure Including adjusting screw rod (45) and spacing head (46), the adjusting screw rod (45) is arranged on the connecting rod (43), in the company It is connected with adjusting nut (47) on the adjusting screw rod (45) of extension bar (43) two sides, the adjusting nut (47) is for adjusting the tune Section screw rod (45) stretches out the length of the connecting rod (43) obliquely, and the spacing head (46) is fixedly arranged on the drive rod (44) On, after the workpiece grip mechanism (3) overturning, the connecting rod (43) and the drive rod (44) are close, the adjusting spiral shell The end of bar (45) is abutted against with the spacing head (46).
4. stringer assembly reverse welding device according to claim 3, it is characterised in that: the drive rod (44) is in Z-shaped Shape, upper part are connected with the workpiece grip mechanism (3), and the spacing head (46), the drive rod are arranged in the middle (44) lower end is connected with the connecting rod (43).
5. stringer assembly reverse welding device according to claim 1, it is characterised in that: chock mechanism (310) packet The chock cylinder (310b) being fixed on the fulcrum bearing (31) by cylinder mounting base (310a) is included, the chock cylinder (310b) Piston rod on be connected with column plug (310c), which is arranged towards the secondary positioning pin (38), in the column Supporting block (310d) is provided with below shape plug (310c).
6. stringer assembly reverse welding device according to claim 5, it is characterised in that: in the chock cylinder (310b) It is further fixed on support frame (310e) in fulcrum bearing (31) between column plug (310c), the piston of the chock cylinder (310b) Bar is arranged in support frame as described above (310e), and on the column plug (310c) of chock cylinder (310b) piston rod two sides also It is separately installed with a guide rod (310f), and the guide rod (310f) is arranged in and opens up on support frame as described above (310e) In pilot hole.
7. stringer assembly reverse welding device according to claim 1, it is characterised in that: in the fulcrum bearing (31) Portion is additionally provided at least one auxiliary positioning pin (311), which is arranged close to the master positioning pin (37).
8. stringer assembly reverse welding device according to claim 1, it is characterised in that: on the overturning pedestal (1) It is additionally provided with horizontal buffer limit block (5), which is used to restore water in the workpiece grip mechanism (3) It is buffered and is limited when prosposition is set.
9. stringer assembly reverse welding device according to claim 1, it is characterised in that: the fulcrum bearing (31) includes branch Board (31a), supporting frame (31b) and cushion block (31c), the support plate (31a) are fixed on the top of the supporting frame (31b), The cushion block (31c) is installed in the quadrangle of the bottom the supporting frame (31b), offers multiple duplicate removals on the support plate (31a) Hole (31d).
CN201821028057.2U 2018-06-29 2018-06-29 Stringer assembly reverse welding device Expired - Fee Related CN208840796U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821028057.2U CN208840796U (en) 2018-06-29 2018-06-29 Stringer assembly reverse welding device

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Application Number Priority Date Filing Date Title
CN201821028057.2U CN208840796U (en) 2018-06-29 2018-06-29 Stringer assembly reverse welding device

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Publication Number Publication Date
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112607379A (en) * 2020-12-02 2021-04-06 吉林省百浪汽车装备技术有限公司 White automobile body top cap work piece turn-over mechanism
CN113857893A (en) * 2021-08-25 2021-12-31 岚图汽车科技有限公司 Assembling and positioning method for back door
CN114102061A (en) * 2021-11-27 2022-03-01 上海游艺机工程有限公司 Construction process of super-long central shaft
CN114888508A (en) * 2022-05-30 2022-08-12 余姚泰速自动化科技有限公司 Side-pulling cylinder overturning, compressing and fixing device based on multi-module quick-change welding mechanism
CN115302178A (en) * 2022-10-12 2022-11-08 广州立新自动化设备有限公司 Automatic welding and clamping system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112607379A (en) * 2020-12-02 2021-04-06 吉林省百浪汽车装备技术有限公司 White automobile body top cap work piece turn-over mechanism
CN112607379B (en) * 2020-12-02 2022-06-28 吉林省百浪汽车装备技术有限公司 Turnover mechanism for top cover workpiece of white car body
CN113857893A (en) * 2021-08-25 2021-12-31 岚图汽车科技有限公司 Assembling and positioning method for back door
CN114102061A (en) * 2021-11-27 2022-03-01 上海游艺机工程有限公司 Construction process of super-long central shaft
CN114888508A (en) * 2022-05-30 2022-08-12 余姚泰速自动化科技有限公司 Side-pulling cylinder overturning, compressing and fixing device based on multi-module quick-change welding mechanism
CN115302178A (en) * 2022-10-12 2022-11-08 广州立新自动化设备有限公司 Automatic welding and clamping system

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Granted publication date: 20190510