CN108788590B - Top compact structure is used in locomotive welding - Google Patents
Top compact structure is used in locomotive welding Download PDFInfo
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- CN108788590B CN108788590B CN201810523207.5A CN201810523207A CN108788590B CN 108788590 B CN108788590 B CN 108788590B CN 201810523207 A CN201810523207 A CN 201810523207A CN 108788590 B CN108788590 B CN 108788590B
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- welding
- pressing
- top plate
- head
- frame
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention relates to the field of vehicle production, in particular to a top compression structure for welding a vehicle head. It is including welding the dress frame and can the roof that goes up and down on the frame, when the roof falls to and welds the upper end contact of dress frame, the roof is by welding the spacing unable continuation decline that can not of dress frame, be equipped with the hold-down mechanism who is used for fixing a position locomotive top on the roof, be equipped with the welding chamber in the dress frame of welding, hold-down mechanism includes the cylinder, the upper end at the dress frame of welding is fixed to the cylinder, the lower extreme of roof is equipped with the fixing base, be equipped with a plurality of depression bars on the lateral wall of fixing base and with the through-hole of depression bar one-to-one, the depression bar slides and sets up in the through-hole that corresponds, be equipped with the guiding hole on the roof, the piston rod of cylinder slides and sets. The clamping device can be used for quickly and accurately clamping the top of the vehicle head, and can be used for quickly releasing the clamping of the top of the vehicle head after welding.
Description
Technical Field
The invention relates to the field of vehicle production, in particular to a top compression structure for welding a vehicle head.
Background
The electric flat car is a transportation tool for goods pulling or person pulling driven by a storage battery and a motor, and is widely applied to short-distance transportation fields such as families, cities and countryside, individual leasing, factories, mining areas, environmental sanitation, community sanitation and the like, but the use environment is generally severe, and the requirements on the materials for a car frame and a welding process are high. The locomotive of electric flat car mainly by preceding shelves 11, back shelves 12, a plurality of spare part welding such as seat support 13 forms, wherein the top of locomotive is by the upper end of preceding shelves, the upper end of back shelves and connect the linking bridge 14 of preceding shelves and back shelves and constitute, wholly be square frame shape, pass through setting element primary positioning locomotive such as locating pin with the locomotive in the mill usually, anchor clamps such as numerous active grab of reuse carry out the omnidirectional clamp to it, all operate the active grab one by one during every welding, the process is loaded down with trivial details, it presss from both sides tight back position accuracy to be difficult to guarantee, and locomotive welding adopts all spare part clamping all once whole welded mode on welding die mostly, this top that leads to welding shaping back locomotive is difficult to take off from welding die, cause welding accuracy and efficiency to be on the low side.
Chinese patent is granted No. CN 204978670U, and granted No. 2016.01.20 date, the name is "a passenger train locomotive top structure", discloses a structure that carries out the welding with the locomotive top as solitary module, but this kind of locomotive top structure only is applicable to the passenger train, is not suitable for the welding at electric flat car locomotive top, and this kind of locomotive top structure needs the welding alone, is difficult to satisfy the disposable whole welded demand of locomotive in the mill.
Disclosure of Invention
The invention aims to overcome the defects that a plurality of clamps are needed to clamp and position the top of a headstock during welding, the position precision after clamping is difficult to guarantee, and the headstock top is difficult to take off from a welding mould after welding and forming in the prior art, and provides a headstock welding top pressing structure which can quickly and accurately press and position the top of the headstock, ensure the position precision after pressing, quickly relieve the pressing of the top of the headstock after welding, and ensure that the top of the headstock does not interfere with the welding mould when the headstock is arranged on the welding mould.
In order to achieve the purpose, the invention adopts the following technical scheme:
a top hold-down structure for welding a headstock comprises
The welding frame is used for welding the head, the top plate can be lifted on the frame, the top plate is positioned above the welding frame, when the top plate is lifted to be in contact with the upper end of the welding frame, the top plate is limited by the welding frame and cannot be continuously lifted, the top plate is provided with a pressing mechanism for pressing the top of the head, and a welding cavity for accommodating the head is arranged in the welding frame;
hold-down mechanism is including the cylinder that is used for driving the roof lift, the cylinder is fixed in the upper end of welding the dress frame, the lower extreme of roof is equipped with the fixing base, be equipped with on the lateral wall of fixing base a plurality of depression bars and with the through-hole of depression bar one-to-one, the depression bar slides and sets up in the through-hole that corresponds, be equipped with the guiding hole that the piston rod that is used for the cylinder passed on the roof, the piston rod of cylinder slides and sets up in the guiding hole, the lower extreme of the piston rod of cylinder is equipped with the clamp plate, the clamp plate is located the below of roof, the clamp plate is. When the locomotive is welded, the locomotive is placed in a welding cavity, the locomotive is positioned through a clamp on a welding frame, wherein the top of the locomotive is compressed and positioned through a compressing mechanism, specifically, a cylinder operates, a piston rod descends, a pressing plate fixedly connected with the lower end of the piston rod also descends, a top plate descends along with the piston rod under the action of gravity, when the top plate descends to be in contact with the upper end of the welding frame, the top plate is limited by the welding frame and cannot continuously descend, all pressure rods reach an appointed position at the moment, the piston rod can still push the pressing plate to continuously descend due to the fact that the piston rod is in sliding connection with the top plate, the pressure rod pushes the pressure rods to outwards extend in the process, and the top of the locomotive is compressed and positioned at. After welding, the air cylinder operates, the piston rod moves upwards, the pressing plate moves upwards along with the piston rod at the moment, pressing force between the pressing rod and the top of the headstock is removed, the top plate is kept still in the process, when the pressing plate is lifted to be in contact with the top plate, the top plate moves upwards along with the piston rod, the whole pressing mechanism is lifted, the headstock after being welded is conveniently pushed out of the welding frame, and the top of the headstock cannot interfere with the pressing mechanism when the headstock is pushed out.
Preferably, the lower surface of the pressure head is a conical surface, one end of the pressure rod, which is positioned in the fixed seat, is provided with a guide surface matched with the lower surface of the pressure head, and when the pressure head moves downwards and is in contact with the pressure rod, the guide surface is attached to the lower surface of the pressure head. Through the cooperation of conical surface and spigot surface, make the in-process that the pressure head descends push out the depression bar steadily automatically, compress tightly the top of locomotive.
Preferably, the compression bar is provided with a return spring and a spring snap ring, the spring snap ring is positioned in the fixed seat, and two ends of the return spring are respectively contacted with the spring snap ring and the side wall of the fixed seat. The reset spring is used for retracting and resetting the pressure rod, so that the pressing mechanism is conveniently lifted.
Preferably, slide bases which are in one-to-one correspondence with the pressure rods are arranged in the fixed base, and the pressure rods are arranged on the corresponding slide bases in a sliding manner. The slide makes the depression bar more steady when flexible, also plays the supporting role to the depression bar.
Preferably, the upper end of the welding frame is provided with a plurality of guide rods, the top plate is provided with yielding through holes corresponding to the guide rods one by one, and the guide rods penetrate through the corresponding yielding through holes. The guide rod is favorable for the stability of the top plate lifting.
Preferably, the pressure lever is provided with a limiting bulge, and the limiting bulge is positioned outside the fixed seat. Prevent the pressure rod from excessively retracting to clamp the pressure head.
Preferably, the fixing seat is annular, and the pressing rods are sequentially distributed along the circumferential direction of the fixing seat. The length and the height of each pressure bar can be set according to specific needs, and each pressure bar is once only fixed a position the top of locomotive through the decline of pressure head and is compressed tightly.
The invention has the beneficial effects that: (1) only by descending the piston rod by one action, the pressure rod can be firstly descended to a designated position and then automatically extend out of the top of the pressing head to accurately position the pressure rod, so that the positioning precision of the pressed head is ensured; (2) after the headstock is welded and formed, the press rod can retract to remove pressing force and then lift up only by one action of lifting of the piston rod, the headstock can conveniently push out the welding frame, and the top of the headstock cannot interfere when the headstock is pushed out.
Drawings
Fig. 1 is a schematic structural view of a vehicle head;
FIG. 2 is a schematic structural view of the present invention;
fig. 3 is a schematic view of another aspect of the present invention.
In the figure: front rail 11, rear rail 12, seat support 13, connecting support 14, welding frame 2, guide rod 21, welding cavity 22, top plate 3, cylinder 31, fixing seat 32, compression bar 33, slide 34, pressure plate 35, pressure head 36, guide surface 37, return spring 38, snap ring 39 and limiting protrusion 310.
Detailed Description
The invention is further described with reference to the following figures and specific embodiments.
As shown in fig. 1 to 3, a top hold-down structure for welding a headstock comprises
A roof 3 that is used for welding of locomotive to adorn frame 2 and can go up and down on the frame, the roof is located the top of welding the dress frame, and the upper end of welding the dress frame is equipped with a plurality of guide bars 21, is equipped with the through-hole of stepping down with the guide bar one-to-one on the roof, and the guide bar passes the through-hole of stepping down that corresponds, and the guide bar improves the stability that the roof goes up and down. When the top plate is lowered to be in contact with the upper end of the welding frame, the top plate is limited by the welding frame and cannot be lowered continuously, a pressing mechanism for pressing the top of the headstock is arranged on the top plate, and a welding cavity 22 for accommodating the headstock is arranged in the welding frame;
hold-down mechanism is including being used for driving the cylinder 31 that the roof goes up and down, and the cylinder is fixed in the upper end of welding the dress frame, and the lower extreme of roof is equipped with fixing base 32, be equipped with on the lateral wall of fixing base a plurality of depression bars 33 and with the through-hole of depression bar one-to-one, the depression bar slides and sets up in the through-hole that corresponds, and the fixing base is ring shape, and each depression bar distributes along the circumference of fixing base in proper order, and the length of each depression bar and the height. The sliding seats 34 which are in one-to-one correspondence with the pressure rods are arranged in the fixing seat, the pressure rods are arranged on the corresponding sliding seats in a sliding mode, and the sliding seats enable the pressure rods to be more stable when the pressure rods stretch and support the pressure rods. The top plate is provided with a guide hole for a piston rod of the air cylinder to pass through, the piston rod of the air cylinder is arranged in the guide hole in a sliding mode, the lower end of the piston rod of the air cylinder is provided with a pressing plate 35, the pressing plate is located below the top plate, and the pressing plate is located in the fixing seat. The middle part of the pressing plate protrudes downwards to form a pressing head 36 used for pushing the pressing rod, the lower surface of the pressing head is a conical surface, one end, located in the fixing seat, of the pressing rod is provided with a guide surface 37 matched with the lower surface of the pressing head, when the pressing head moves downwards and contacts with the pressing rod, the guide surface is attached to the lower surface of the pressing head, and the pressing rod is automatically and stably pushed out in the descending process of the pressing head through the matching of the conical surface and the guide surface to tightly press the top of the vehicle head. The compression bar is provided with a return spring 38 and a spring snap ring 39, the spring snap ring is positioned in the fixed seat, two ends of the return spring are respectively contacted with the spring snap ring and the side wall of the fixed seat, and the return spring is used for retraction and reset of the compression bar, so that the compression mechanism is convenient to lift up. Be equipped with spacing arch 310 on the depression bar, spacing arch is located the outside of fixing base, prevents that the depression bar from excessively retracting to lead to blocking the pressure head.
When the locomotive is welded, the locomotive is preliminarily positioned in a welding frame, and then the locomotive is further clamped and positioned, wherein the top of the locomotive is pressed and positioned through a pressing mechanism, specifically, a cylinder operates, a piston rod descends, a pressing plate fixedly connected with the lower end of the piston rod also descends, a top plate descends along with the piston rod under the action of gravity, when the top plate descends to be in contact with the upper end of the welding frame, the top plate is limited by the welding frame and cannot descend continuously, all pressure rods reach an appointed position at the moment, the piston rod can still push the pressing plate to descend continuously due to the fact that the piston rod is in sliding connection with the top plate, in the process, the lower surface of a pressure head is attached to a guide surface on the pressure rods, the pressure head generates outward pushing component force to the pressure rods, the pressure rods are pushed to extend outwards together. After welding, the air cylinder operates, the piston rod moves upwards, the pressing plate moves upwards along with the piston rod at the moment, pressing force between the pressing rod and the top of the headstock is removed, the pressing rod retracts due to the reset spring, the top plate is kept still in the process, when the pressing plate is lifted to be in contact with the top plate, the top plate is driven to move upwards along with the piston rod, the whole pressing mechanism is lifted, the headstock after welding forming is conveniently pushed out of the welding frame, and interference cannot occur to the top of the headstock when the headstock is pushed out.
The invention has the beneficial effects that: only by descending the piston rod by one action, the compression rod can be firstly descended to a designated position and then automatically extend out of the top of the compression headstock to accurately compress the compression rod, so that the position precision of the headstock after compression is ensured; after the headstock is welded and formed, the press rod can retract to remove pressing force and then lift up only by one action of lifting of the piston rod, the headstock can conveniently push out the welding frame, and the top of the headstock cannot interfere when the headstock is pushed out.
Claims (4)
1. A top hold-down structure for welding a headstock is characterized by comprising
The welding frame is used for welding the head, the top plate can be lifted on the frame, the top plate is positioned above the welding frame, when the top plate is lifted to be in contact with the upper end of the welding frame, the top plate is limited by the welding frame and cannot be continuously lifted, the top plate is provided with a pressing mechanism for pressing the top of the head, and a welding cavity for accommodating the head is arranged in the welding frame;
the pressing mechanism comprises an air cylinder for driving the top plate to lift, the air cylinder is fixed at the upper end of the welding frame, a fixed seat is arranged at the lower end of the top plate, a plurality of pressing rods and through holes which are in one-to-one correspondence with the pressing rods are arranged on the side wall of the fixed seat, the pressing rods are slidably arranged in the corresponding through holes, a guide hole for a piston rod of the air cylinder to pass through is formed in the top plate, the piston rod of the air cylinder is slidably arranged in the guide hole, a pressing plate is arranged at the lower end of the piston rod of the air cylinder, the pressing plate is located below the top plate and located in;
the lower surface of the pressure head is a conical surface, one end of the pressure rod, which is positioned in the fixed seat, is provided with a guide surface matched with the lower surface of the pressure head, and when the pressure head moves downwards and is in contact with the pressure rod, the guide surface is attached to the lower surface of the pressure head;
the pressure rod is provided with a return spring and a spring snap ring, the spring snap ring is positioned in the fixed seat, and two ends of the return spring are respectively contacted with the spring snap ring and the side wall of the fixed seat;
the fixing seat is in a ring shape, and the pressing rods are distributed in sequence along the circumferential direction of the fixing seat.
2. The top pressing structure for vehicle head welding as claimed in claim 1, wherein slide seats corresponding to the pressing rods are arranged in the fixing seat, and the pressing rods are slidably arranged on the corresponding slide seats.
3. The top pressing structure for welding the vehicle head according to claim 1 or 2, wherein a plurality of guide rods are arranged at the upper end of the welding frame, abdicating through holes corresponding to the guide rods in a one-to-one manner are formed in the top plate, and the guide rods penetrate through the corresponding abdicating through holes.
4. The top pressing structure for vehicle head welding according to claim 1 or 2, wherein a limiting protrusion is arranged on the pressing rod and is positioned outside the fixed seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810523207.5A CN108788590B (en) | 2018-05-28 | 2018-05-28 | Top compact structure is used in locomotive welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810523207.5A CN108788590B (en) | 2018-05-28 | 2018-05-28 | Top compact structure is used in locomotive welding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108788590A CN108788590A (en) | 2018-11-13 |
| CN108788590B true CN108788590B (en) | 2020-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810523207.5A Active CN108788590B (en) | 2018-05-28 | 2018-05-28 | Top compact structure is used in locomotive welding |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8261960B2 (en) * | 2006-06-12 | 2012-09-11 | Comau, Inc. | Single retainer mounted riser |
| CN104308437A (en) * | 2014-11-24 | 2015-01-28 | 重庆长安汽车股份有限公司 | Fixture used for welding of automobile front floor and front row seat installation crossbeam |
| CN105618988A (en) * | 2016-03-31 | 2016-06-01 | 奇瑞汽车股份有限公司 | White car body top cover self-positioning tool |
| CN106181214A (en) * | 2016-08-28 | 2016-12-07 | 陶程意 | A kind of fixing device welded for large-scale iron sheet barrel |
| CN106736159A (en) * | 2016-12-29 | 2017-05-31 | 安徽瑞祥工业有限公司 | A kind of lifting portal frame structure |
| CN208513930U (en) * | 2018-05-28 | 2019-02-19 | 嵊州市恒中机器有限公司 | A kind of pressing device for being welded at the top of headstock |
-
2018
- 2018-05-28 CN CN201810523207.5A patent/CN108788590B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8261960B2 (en) * | 2006-06-12 | 2012-09-11 | Comau, Inc. | Single retainer mounted riser |
| CN104308437A (en) * | 2014-11-24 | 2015-01-28 | 重庆长安汽车股份有限公司 | Fixture used for welding of automobile front floor and front row seat installation crossbeam |
| CN105618988A (en) * | 2016-03-31 | 2016-06-01 | 奇瑞汽车股份有限公司 | White car body top cover self-positioning tool |
| CN106181214A (en) * | 2016-08-28 | 2016-12-07 | 陶程意 | A kind of fixing device welded for large-scale iron sheet barrel |
| CN106736159A (en) * | 2016-12-29 | 2017-05-31 | 安徽瑞祥工业有限公司 | A kind of lifting portal frame structure |
| CN208513930U (en) * | 2018-05-28 | 2019-02-19 | 嵊州市恒中机器有限公司 | A kind of pressing device for being welded at the top of headstock |
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| Publication number | Publication date |
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| CN108788590A (en) | 2018-11-13 |
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Effective date of registration: 20220224 Address after: 313102 No. 168, LAOHUDONG village, Lijiaxiang Town, Changxing County, Huzhou City, Zhejiang Province Patentee after: Zhejiang Hengyuan Machinery Co.,Ltd. Address before: No. 368, Punan Avenue, Shengzhou Economic Development Zone, Shaoxing City, Zhejiang Province Patentee before: SHENGZHOU HENGZHONG MACHINERY Co.,Ltd. |