CN108788595B - Positioning tool for welding of locomotive underframe - Google Patents
Positioning tool for welding of locomotive underframe Download PDFInfo
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- CN108788595B CN108788595B CN201810565111.5A CN201810565111A CN108788595B CN 108788595 B CN108788595 B CN 108788595B CN 201810565111 A CN201810565111 A CN 201810565111A CN 108788595 B CN108788595 B CN 108788595B
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- welding
- chassis
- hose
- positioning tool
- underframe
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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)
- Resistance Welding (AREA)
Abstract
The invention discloses a positioning tool for welding a locomotive underframe, which can accurately position the underframe, further avoid welding deformation, ensure welding size and be quickly taken down after welding. The welding chassis is provided with an access door through which the welding chassis can pass, a welding cavity for accommodating a vehicle head is arranged in the welding frame, the access door is communicated with the welding cavity, and the welding chassis is provided with a seat support placing seat; the welding chassis is provided with a pedal stretching device, the pedal stretching device comprises a piston cylinder and two piston rods which are arranged at two ends of the piston cylinder in a sliding mode respectively, an air chamber is arranged in the piston cylinder, the lower end of the welding chassis is provided with a roller, the upper surface of the chassis is provided with a rolling track, a hose is laid in the rolling track, the roller is located in the rolling track, the lower end of the roller is pressed on the hose, one end of the hose is sealed, and the other end of the hose is communicated with the air chamber.
Description
Technical Field
The invention relates to the field of vehicle machining, in particular to a positioning tool for welding a headstock chassis.
Background
The electric flat car has the advantages of strong applicability, flexibility, simple maintenance, convenient maintenance, low price and the like, can flexibly pass through narrow roads, is widely applied to short-distance transportation fields such as families, cities and countrysides, individual rentals, factories, mining areas, environmental sanitation, community sanitation and the like, is relatively common abroad, and has gradually raised domestic attention in short time. The locomotive of electric flat car mainly comprises a plurality of spare parts welding such as preceding shelves, back shelves, chassis, and wherein chassis 1 includes seat support 11 and two footboards 12, does not have connection structure between two footboards, therefore a series of quality problems such as welding deformation, size deviation appear easily, and welded forming's chassis is difficult to take off from welding die, causes the welding precision and the efficiency of chassis to hang down on the side.
Chinese patent is granted No. CN 104668801B, granted No. 2017.01.04 day, the name is "a decorative pattern board commodity circulation vehicle bottom seat weld line", discloses a weld line including conveyer belt, panel transport station, wheel fixed inner panel welding station, wheel fixed planking welding station, middle crosspiece welding station, violently pipe welding station, end plate welding station and handrail sleeve pipe welding station, but this kind of production line is difficult to be applied to the welding of locomotive underframe, and can not solve the problem that lack connection structure between two pedals and be easily deformed yet.
Disclosure of Invention
The invention aims to overcome the defects that welding deformation and size deviation are easy to occur between two pedals when an underframe is welded and the underframe is difficult to take off from a welding die after being welded and formed in the prior art, and provides a positioning tool for welding a locomotive underframe, which can accurately position the underframe, further avoid welding deformation, ensure welding size and can be quickly taken off after welding.
In order to achieve the purpose, the invention adopts the following technical scheme:
a positioning tool for welding a chassis of a vehicle head comprises
The welding chassis is provided with an access door through which the welding chassis can pass, a welding cavity for accommodating a vehicle head is arranged in the welding frame, the access door is communicated with the welding cavity, and the welding chassis is provided with a seat support placing seat;
the welding chassis is provided with a pedal stretching device, the pedal stretching device comprises a piston cylinder arranged on the welding chassis and two piston rods arranged at two ends of the piston cylinder in a sliding mode, an air chamber is arranged in the piston cylinder, the lower end of the welding chassis is provided with a roller, the upper surface of the chassis is provided with a rolling track, a hose is laid in the rolling track, the roller is located in the rolling track, the lower end of the roller is pressed on the hose, one end of the hose is sealed, and the other end of the hose is communicated with the air chamber. When the locomotive is welded, the underframe is clamped on the welding chassis, the welding chassis slides into the welding frame after the underframe is positioned, the rollers roll the hose pipe along with the sliding of the welding chassis, gas in the hose pipe is pressed into the gas chamber, the pressure in the gas chamber is increased, the piston rod gradually extends out until the piston rod tightly supports the two pedals, the welding deformation is prevented, and other parts of the locomotive are clamped on the welding frame, so that the welding can be carried out. After the welding of the headstock is finished, the clamping of the headstock is removed, the sliding welding chassis slides the underframe out of the welding frame, gas in the gas chamber returns to the soft gas pipe, the piston rod automatically contracts to relieve the support of the pedal, so that the underframe can be conveniently taken down from the welding chassis, the headstock is taken out by using transportation equipment such as a tower crane and the like without being interfered by the welding frame, and the headstock can be directly hoisted away to perform the clamping welding of the next headstock.
Preferably, a return spring is arranged in the air chamber, and two ends of the return spring are respectively connected with the two piston rods. The auxiliary piston rod retracts and resets after the welding of the headstock is finished, so that the underframe is easier to take out.
Preferably, one end of the soft air pipe close to the air chamber is provided with an air valve. When the pedal is tightly supported by the piston rod, the air valve is closed to prevent the piston rod from retracting, so that enough supporting force is ensured, and welding deformation is prevented.
Preferably, the length direction of the rolling track is parallel to the sliding direction of the welding chassis. When the welding chassis slides into the welding frame, the roller can press the gas in the soft gas pipe into the gas chamber better.
Preferably, the length of the base in the sliding direction of the soldering pan is at least twice the length of the frame. After the welding chassis slides out, the chassis is not interfered by the welding frame when being taken down from the welding chassis.
Preferably, the base is provided with a sliding rail for sliding the welding chassis, one end of the sliding rail is positioned outside the welding chassis, the sliding rail penetrates through the access door, and the other end of the sliding rail is positioned in the welding frame. The slide rail is favorable for the welding chassis to slide stably.
Preferably, a pressing plate and a plurality of pedal positioning columns are arranged on the welding chassis, quick clamps for pressing the pressing plate are arranged on the welding frame, a plurality of adjusting holes in one-to-one correspondence with the pedal positioning columns are formed in the pressing plate, and the pedal positioning columns penetrate through the corresponding adjusting holes. The footboard reference column passes footboard and clamp plate, and the active grab compresses tightly the clamp plate to fix a position the footboard between clamp plate and welding chassis, prevent that deformation from appearing in footboard and other spare part welding departments.
Preferably, the welding chassis is provided with a supporting seat, the supporting seat is provided with a containing groove, the piston rod is arranged in the containing groove in a sliding mode, and the supporting seat is located at one end, far away from the piston cylinder, of the piston rod. The supporting seat not only plays a supporting role for the piston rod, but also plays a guiding role for the sliding of the piston rod.
The invention has the beneficial effects that: (1) after the welding of the headstock is finished, the headstock slides out of the welding frame through the sliding welding chassis, so that the welded headstock can be conveniently and quickly taken down for clamping the next headstock, and the efficiency is obviously improved; (2) the piston rod is in welding the in-process that the dress chassis slided into to weld the dress frame and is stretched out automatically until propping two footboards tight, prevents welding deformation, guarantees the welding size, and the in-process that welds the dress chassis roll-off and weld the dress frame contracts automatically, relieves the support tight to the footboard, makes things convenient for the chassis to take off from welding the dress chassis fast.
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 the structure at the welding chassis of the present invention;
FIG. 4 is a schematic view of the structure of FIG. 3 from another perspective;
fig. 5 is a schematic diagram of the structure at a in fig. 2.
In the figure: the welding device comprises an underframe 1, a seat support 11, a pedal 12, a base 2, a slide rail 21, a welding chassis 3, a seat support placing seat 31, a pressing plate 32, a pedal positioning column 33, a quick clamp 34, a welding frame 4, an access door 41, a piston cylinder 51, a piston rod 52, an air chamber 53, a return spring 54, a roller 55, a rolling track 56, a soft air pipe 57, an air valve 58 and a supporting seat 59.
Detailed Description
The invention is further described with reference to the following figures and specific embodiments.
As shown in fig. 1 to 5, a positioning tool for welding a headstock chassis comprises
The base 2, the welding chassis 3 that slides and set up on the base and establish welding frame 4 on the base, are equipped with on the base and are used for welding gliding slide rail 21 in chassis, and the one end of slide rail is located outside the welding chassis, and the slide rail passes business turn over door, and the other end of slide rail is located welding frame, and the slide rail does benefit to and welds the chassis and slide steadily. The sliding direction of the welding chassis is horizontal, and the length of the base is at least twice of that of the frame in the sliding direction of the welding chassis, so that the chassis is guaranteed not to be interfered by the welding frame when taken down from the welding chassis after the welding chassis slides out. Weld and be equipped with the business turn over door 41 that can supply to weld the dress chassis and pass on the dress frame, be equipped with the welding chamber that is used for holding the locomotive in the dress frame, business turn over door and welding chamber intercommunication, it places seat 31 to be equipped with the seat support on the dress chassis to weld, it is equipped with clamp plate 32 and a plurality of footboard reference column 33 on the dress chassis to weld, it is equipped with the rapid grip 34 that is used for compressing tightly the clamp plate to weld to be equipped with on the dress frame, be equipped with the regulation hole of a plurality of and footboard reference column one-to-ones on the clamp plate, the footboard reference column passes the regulation hole that corresponds, the footboard reference column passes footboard and clamp plate, the rapid grip compresses tightly the clamp.
The welding chassis is provided with a pedal stretching device which comprises a piston cylinder 51 arranged on the welding chassis and two piston rods 52 respectively arranged at two ends of the piston cylinder in a sliding manner, and an air chamber 53 is arranged in the piston cylinder. A return spring 54 is arranged in the air chamber, and two ends of the return spring are respectively connected with the two piston rods and used for assisting the piston rods to retract and reset after the welding of the headstock is finished, so that the underframe is easier to take out. The lower end of the welding chassis is provided with a roller 55, the upper surface of the chassis is provided with a rolling track 56, a soft air pipe 57 is laid in the rolling track, the length direction of the rolling track is parallel to the sliding direction of the welding chassis, the roller is positioned in the rolling track, the lower end of the roller is pressed on the soft air pipe, one end of the soft air pipe is sealed, and the other end of the soft air pipe is communicated with the air chamber. An air valve 58 is arranged at one end of the soft air pipe close to the air chamber, when the piston rod tightly supports the pedal, the air valve is closed to prevent the piston rod from retracting, so that enough supporting force is ensured, and welding deformation is prevented. The welding chassis is provided with a supporting seat 59, the supporting seat is provided with a containing groove, the piston rod is arranged in the containing groove in a sliding mode, the supporting seat is located at one end, far away from the piston cylinder, of the piston rod, and the supporting seat not only supports the piston rod, but also guides the sliding of the piston rod.
When the locomotive is welded, the underframe is clamped on the welding chassis, the welding chassis slides into the welding frame after the underframe is positioned, the rollers roll the hose pipe along with the sliding of the welding chassis, gas in the hose pipe is pressed into the gas chamber, the pressure in the gas chamber is increased, the piston rod gradually extends out until the piston rod tightly supports the two pedals, the welding deformation is prevented, the gas valve is closed, the piston rod is prevented from retracting, and other parts of the locomotive are clamped on the welding frame, so that the welding can be carried out. After the welding of the headstock is finished, the clamping of the headstock is removed, the air valve is opened, the underframe slides out of the welding frame through the sliding welding chassis, the gas in the air chamber returns to the soft gas pipe, the piston rod automatically contracts under the action of the return spring, the support on the pedal is removed, the underframe can be conveniently taken down from the welding chassis, and the headstock is taken out by using transportation equipment such as a tower crane and the like without being interfered by the welding frame, so that the headstock can be directly lifted away for clamping and welding of the next headstock.
The invention has the beneficial effects that: after the welding of the headstock is finished, the headstock slides out of the welding frame through the sliding welding chassis, so that the welded headstock can be conveniently and quickly taken down for clamping the next headstock, and the efficiency is obviously improved; the piston rod is in welding the in-process that the dress chassis slided into to weld the dress frame and is stretched out automatically until propping two footboards tight, prevents welding deformation, guarantees the welding size, and the in-process that welds the dress chassis roll-off and weld the dress frame contracts automatically, relieves the support tight to the footboard, makes things convenient for the chassis to take off from welding the dress chassis fast.
Claims (7)
1. A positioning tool for welding a chassis of a vehicle head is characterized by comprising
The welding chassis is provided with an access door through which the welding chassis can pass, a welding cavity for accommodating a vehicle head is arranged in the welding frame, the access door is communicated with the welding cavity, and the welding chassis is provided with a seat support placing seat;
the welding chassis is provided with a pedal stretching device, the pedal stretching device comprises a piston cylinder arranged on the welding chassis and two piston rods which are respectively arranged at two ends of the piston cylinder in a sliding manner, an air chamber is arranged in the piston cylinder, the lower end of the welding chassis is provided with a roller, the upper surface of the chassis is provided with a rolling track, a hose is laid in the rolling track, the roller is positioned in the rolling track, the lower end of the roller is pressed on the hose, one end of the hose is closed, and the other end of the hose is communicated with the air chamber;
the length direction of the rolling track is parallel to the sliding direction of the welding chassis.
2. The positioning tool for welding the locomotive underframe according to claim 1, wherein a return spring is arranged in the air chamber, and two ends of the return spring are respectively connected with two piston rods.
3. The positioning tool for welding the locomotive underframe according to claim 1 or 2, wherein an air valve is arranged at one end of the air hose, which is close to the air chamber.
4. The positioning tool for welding the locomotive underframe as claimed in claim 1 or 2, wherein the length of the base is at least twice as long as that of the welding frame in the sliding direction of the welding underframe.
5. The positioning tool for welding the vehicle head underframe according to claim 1 or 2, wherein a sliding rail for sliding the welding chassis is arranged on the base, one end of the sliding rail is positioned outside the welding chassis, the sliding rail penetrates through the access door, and the other end of the sliding rail is positioned in the welding frame.
6. The positioning tool for welding the locomotive underframe as claimed in claim 1 or 2, wherein the welding chassis is provided with a pressing plate and a plurality of pedal positioning columns, the welding frame is provided with quick clamps for pressing the pressing plate, the pressing plate is provided with a plurality of adjusting holes corresponding to the pedal positioning columns one by one, and the pedal positioning columns penetrate through the corresponding adjusting holes.
7. The positioning tool for welding the locomotive underframe according to claim 1 or 2, wherein the welding chassis is provided with a support seat, the support seat is provided with an accommodating groove, the piston rod is slidably arranged in the accommodating groove, and the support seat is positioned at one end of the piston rod, which is far away from the piston cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810565111.5A CN108788595B (en) | 2018-06-04 | 2018-06-04 | Positioning tool for welding of locomotive underframe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810565111.5A CN108788595B (en) | 2018-06-04 | 2018-06-04 | Positioning tool for welding of locomotive underframe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108788595A CN108788595A (en) | 2018-11-13 |
| CN108788595B true CN108788595B (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810565111.5A Active CN108788595B (en) | 2018-06-04 | 2018-06-04 | Positioning tool for welding of locomotive underframe |
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| Country | Link |
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| CN (1) | CN108788595B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101078619B1 (en) * | 2009-09-28 | 2011-11-01 | (주)일지테크 | Welding device for car body with two-stage shuttle |
| CN102744535A (en) * | 2011-04-17 | 2012-10-24 | 漳州金龙客车有限公司 | Universal welding-on table of passenger car |
| CN203091993U (en) * | 2013-01-22 | 2013-07-31 | 帕圣科技发展(上海)有限公司 | Welding fixture rotating platform |
| CN103659118A (en) * | 2013-12-03 | 2014-03-26 | 芜湖普威技研有限公司 | Welding fixture for pedals and pedal supports |
| CN105081649A (en) * | 2015-09-08 | 2015-11-25 | 洛阳市极诺电动车有限公司 | Using method for semi-automatic frame combined welding tool |
| CN208496136U (en) * | 2018-06-04 | 2019-02-15 | 嵊州市恒中机器有限公司 | A kind of headstock welding chassis location structure |
-
2018
- 2018-06-04 CN CN201810565111.5A patent/CN108788595B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101078619B1 (en) * | 2009-09-28 | 2011-11-01 | (주)일지테크 | Welding device for car body with two-stage shuttle |
| CN102744535A (en) * | 2011-04-17 | 2012-10-24 | 漳州金龙客车有限公司 | Universal welding-on table of passenger car |
| CN203091993U (en) * | 2013-01-22 | 2013-07-31 | 帕圣科技发展(上海)有限公司 | Welding fixture rotating platform |
| CN103659118A (en) * | 2013-12-03 | 2014-03-26 | 芜湖普威技研有限公司 | Welding fixture for pedals and pedal supports |
| CN105081649A (en) * | 2015-09-08 | 2015-11-25 | 洛阳市极诺电动车有限公司 | Using method for semi-automatic frame combined welding tool |
| CN208496136U (en) * | 2018-06-04 | 2019-02-15 | 嵊州市恒中机器有限公司 | A kind of headstock welding chassis location structure |
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| Publication number | Publication date |
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| CN108788595A (en) | 2018-11-13 |
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Effective date of registration: 20220225 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. |