CN114393307B - Both sides centre gripping formula welding frock - Google Patents
Both sides centre gripping formula welding frock Download PDFInfo
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- CN114393307B CN114393307B CN202210245127.4A CN202210245127A CN114393307B CN 114393307 B CN114393307 B CN 114393307B CN 202210245127 A CN202210245127 A CN 202210245127A CN 114393307 B CN114393307 B CN 114393307B
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- clamping
- clamping table
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- driving
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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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
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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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
-
- 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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- 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
- B23K37/0461—Welding tables
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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
- B23K37/047—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- Jigs For Machine Tools (AREA)
Abstract
A welding fixture with two clamping sides relates to the field of laser welding clamping fixtures, and comprises: a base station; the active clamping table is used for clamping the upper part and the lower part of one side of a part to be welded, a rotating motor is arranged on the base table, the active clamping table is in transmission connection with the rotating motor, and the rotating motor controls the active clamping table to rotate; the driven clamping table is rotationally connected with the base table and used for clamping the upper part and the lower part of the other side of the part to be welded; the locking mechanism is fixedly arranged on the base station, and the driven clamping table is provided with a plug-in part for the locking mechanism to be inserted; the driven clamping table interrupts clamping of the part to be welded after the locking mechanism is inserted into the plug-in connection part, and the driven clamping table maintains clamping of the part to be welded after the locking mechanism leaves the plug-in connection part. The utility model provides positioning for the initial state of the clamp and prevents the clamp from shaking when the part to be processed is not clamped.
Description
Technical Field
The utility model relates to the field of laser welding clamping tools, in particular to a two-side clamping type welding tool.
Background
Because the technical problems of the manufacturing equipment or the die for integrally forming the complex shape are more at present, the manufacturing cost is only raised when the integral forming is pursued, and the cost is reduced in a low-batch production by adopting a welding mode; because at least more than two objects need to be connected in the welding process, a simpler structure can be placed on the ground for welding, but products with complex structures need to be clamped by means of the matching of the clamps, and in addition, whether manual welding or automatic welding by means of a mechanical arm is carried out, the clamps have the capability of carrying product movement, so that the welding difficulty can be effectively reduced.
For example, chinese patent application No. CN202121696058.6 discloses a rotatable welding fixture for wind power module production, which includes a fixed plate, a rotating fixture structure, and a movable auxiliary rotating structure; the rotary clamp structure comprises a first motor, a synchronous wheel transmission structure, a first rotating shaft, a first bearing seat fixing seat and a first clamping structure; the movable auxiliary rotating structure comprises a moving structure and a propping structure. The wind power module one end to be welded is placed on the rotating clamp structure, the other end is fixed through the movable auxiliary rotating structure, and in the welding process, the rotating clamp structure drives the wind power module to rotate at different angles according to requirements, so that one-time welding is realized, the welding time is greatly shortened, and the welding quality is improved.
However, the technical scheme does not consider the situation that the clamp cannot be effectively positioned when clamping the object to be processed, because the parts to be welded are metal parts, the heavy mass is required to be conveyed to the clamp by means of the lifting tool, once the clamp is subjected to certain shaking, the difficulty of feeding and discharging is increased, the efficiency is affected, and even the safety accident that the parts to be welded fall is caused.
Disclosure of Invention
Both sides centre gripping formula welding frock, including: a base station; the active clamping table is used for clamping the upper part and the lower part of one side of a part to be welded, a rotating motor is arranged on the base table, the active clamping table is in transmission connection with the rotating motor, and the rotating motor controls the active clamping table to rotate; the driven clamping table is rotationally connected with the base table and used for clamping the part to be welded relative to the upper part and the lower part of the other side of the one side clamped by the driving clamping table; the locking mechanism is fixedly arranged on the base station, and the driven clamping table is provided with a plug-in part for the locking mechanism to be inserted; the driven clamping table interrupts clamping of the part to be welded after the locking mechanism is inserted into the plug-in connection part, and the driven clamping table maintains clamping of the part to be welded after the locking mechanism leaves the plug-in connection part.
As the optimization of the technical scheme, the plug-in part comprises an insertion groove matched with the locking mechanism and a short-circuit switch positioned at the bottom end of the insertion groove; when the short circuit switch is disconnected, the driven clamping table maintains a clamping state.
As an preference of the technical scheme, the driving clamping table or the driven clamping table is provided with clamping planes for supporting the lower end surfaces of the parts to be welded, the driving clamping table or the driven clamping table is used for controlling clamping or loosening the parts to be welded through vertical air cylinders, and the number of the vertical air cylinders is two and is respectively arranged above the driving clamping table and the driven clamping table; when the locking mechanism is inserted into the insertion groove, the end face of the clamping plane faces upwards and is horizontal.
As the optimization of the technical scheme, the two vertical cylinders are respectively a first cylinder used for controlling the driving clamping table to clamp the part to be welded and a second cylinder used for controlling the driven clamping table to clamp the part to be welded, the shorting switch is used for controlling the second cylinder, and when the shorting switch is disconnected, the second cylinder is continuously pushed.
As the optimization of the technical scheme, the driven clamping table comprises a movable clamping block and a fixed clamping seat, the clamping plane is arranged on the fixed clamping seat and is opposite to the lower end of the movable clamping block, and the movable clamping block moves relative to the clamping plane so as to clamp or relax the part to be welded by the driven clamping table.
As the optimization of the technical scheme, the driven clamping table is further provided with a safety locking plate, the safety locking plate is fixedly connected with the movable clamping block, and the safety locking plate is detachably connected with the fixed clamping seat through a positioning bolt.
As the preference of the technical scheme, the waist-shaped hole is formed in the safety locking plate, the threaded hole is formed in the fixed clamping seat, the positioning bolt penetrates through the waist-shaped hole to be in threaded fit with the threaded hole, the length of the waist-shaped hole is matched with the lifting distance of the movable clamping block, and the nut part of the positioning bolt abuts against the safety locking plate in the fixed state of the safety locking plate and the fixed clamping seat.
The base station comprises a supporting base plate, a driving clamping table supporting seat and a driven clamping table supporting seat, wherein the driving clamping table supporting seat and the driven clamping table supporting seat are arranged on the supporting base plate, a sliding rail is arranged on the supporting base plate, the driving clamping table supporting seat is in sliding connection with the supporting base plate through the sliding rail, and the driving clamping table supporting seat is controlled by a third air cylinder to be close to/far away from the driven clamping table supporting seat.
As the optimization of the technical scheme, the lower end face of the movable clamping block and the clamping plane are provided with positioning columns.
Preferably, the driving clamping table and the driven clamping table are provided with threading frames.
In summary, the utility model has the following advantages:
1. in the embodiment, the positioning can be provided for the initial state of the clamp, so that the condition that the clamp shakes when the part to be processed is not clamped is prevented, and the loading and unloading difficulty is reduced;
2. furthermore, the clamp provided by the utility model provides a supporting plane, so that the part to be processed is more stable when placed on the clamp, and the risk of part sliding is reduced;
3. still further, the utility model provides the locking mechanism which locks the initial position of the driven clamping table so as to assist in positioning of the driving clamping table, and the short-circuit switch is arranged in the plug-in part matched with the locking mechanism, so that the driven clamping table can relax the part to be processed only after positioning is finished, and the clamping safety is improved.
Further or other details of the beneficial effects will be discussed in the embodiments.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present utility model;
FIG. 2 is a front elevation and partial cross-sectional view of an embodiment of the present utility model;
FIG. 3 is a schematic view of a driven clamping table according to an embodiment of the present utility model;
FIG. 4 is a schematic diagram showing a matching manner of the locking mechanism and the plugging portion according to the embodiment of the present utility model;
FIG. 5 is a schematic diagram of an electrical circuit for controlling the operation of a second cylinder in accordance with the present utility model;
FIG. 6 is a schematic diagram of the present utility model when a part to be welded is placed in a welding tool;
the device comprises a 1-base station, a 2-driving clamping table, a 3-driven clamping table, a 4-locking mechanism, a 5-safety locking plate, a 6-threading frame, a 11-supporting bottom plate, a 12-driving clamping table supporting seat, a 13-driven clamping table supporting seat, a 111-sliding rail, a 31-moving clamping block, a 32-fixed clamping seat, a 34-plug-in part, a 341-plug-in groove, a 342-short circuit switch, a 100-part to be welded, a d-rotating motor, an e-rotating shaft bearing, a v-1-first rotating shaft, a v-2-second rotating shaft, a 5-a-waist-shaped hole, a C1-first cylinder, a C2-second cylinder, a C3-third cylinder, an R1-driven clamping table working circuit, an R2-load resistor, an S1-short circuit switch, a 23-a clamping plane and a 23-b-positioning column.
Detailed Description
The terms of orientation such as up, down, left, right, front, rear, front, back, top, bottom, etc. mentioned or possible in this specification are defined with respect to the configurations shown in the drawings, and the terms "inner" and "outer" refer to the relative concepts of the terms toward or away from the geometric center of a particular component, respectively, and thus may be changed accordingly depending on the location and use state of the component. These and other directional terms should not be construed as limiting terms.
The utility model is further illustrated by the following examples:
examples:
referring to fig. 1 and 2, a welding fixture with two clamping sides comprises a base station 1, a driving clamping station 2, a driven clamping station 3 and a locking mechanism 4; the driving clamping table 2 is used for clamping the upper part and the lower part of one side of a part to be welded, a rotating motor d is arranged in the base table 1 and is in transmission connection with the driving clamping table 2 through a first rotating shaft v-1, the rotating motor d is mainly used for controlling the driving clamping table 2 to rotate around the central axis of the first rotating shaft v-1, and the rotating motor d can control the driving clamping table 2 to rotate for a certain angle in a clockwise or anticlockwise direction and brake, so that the driving clamping table 2 is fixed in place after rotating for a certain angle; a rotating shaft bearing e is arranged at the matching position of the base station 1 and the driven clamping station 3, the driven clamping station 3 is in running fit with the rotating shaft bearing e on the base station 1 through a second rotating shaft v-2, and the driven clamping station 3 is used for clamping the part to be welded relative to the upper part and the lower part of the other side of one side clamped by the driving clamping station 2; different from the fact that the driving clamping table 2 can be braked to be positioned at a required position by the rotating motor d, the driven clamping table 3 is easy to rotate relative to the driven clamping table 2 under the action of external force, for example, when a part to be welded is fed, the driven clamping table 3 possibly rotates by a certain angle and then swings back and forth, and the unstable driven clamping table 3 influences feeding efficiency, the utility model designs the locking mechanism 4 to limit the driven clamping table 2 in the feeding stage, the locking mechanism 4 is fixedly arranged on the base table 1, the driven clamping table 3 is provided with the inserting part 34 for inserting the locking mechanism 4, and in combination with fig. 1 and 2, the driven clamping table 2 is positioned at the position shown in fig. 1 under the condition that the machine is stopped or a part is completely welded and removed, at this time, the locking mechanism 4 is electrified to be inserted into the inserting part 34 matched with the driven clamping table 2, the rotation of the driven clamping table 2 is limited, no matter the center of gravity is unstable or the external force impacts the driven clamping table 2, the situation of rotation does not occur, and the subsequent feeding is convenient.
In particular, the method comprises the steps of,referring to fig. 3, the driven clamping table 3 includes a movable clamping block 31 and a fixed clamping seat 32, wherein the movable clamping block 31 is controlled by a second cylinder C2 to approach or separate from the fixed clamping seat 32, the fixed clamping seat 32 includes a clamping plane 23-a opposite to the movable clamping block 31, the movable clamping block 31 moves relative to the clamping plane 23-a to clamp or loosen the part to be welded by the driven clamping table 3, in addition, the clamping structure adopted by the driving clamping table 2 can be selected according to the requirement in the prior art, in this embodiment, the driving clamping table 2 preferably adopts the same clamping structure as the driven clamping table 3, and also includes a clamping plane 23-a, and the driving clamping table 2 is driven by the first cylinder C1Controlling the clamping or loosening. The first cylinder C1 and the second cylinder C2 are vertical cylinders which are vertically arranged, wherein the first cylinder C1 is arranged above the driving clamping table 2, and the second cylinder C2 is arranged above the driven clamping table 3 and is in transmission connection with the movable clamping block 31. The clamping plane 23-a is mainly used for supporting the parts to be welded placed on the clamping plane, the parts to be welded are required to be placed on the driving clamping table 2 and the driven clamping table 3 before the driving clamping table 2 and the driven clamping table 3 are clamped, and the placed area is required to provide support and ensure that the parts placed on the clamping plane cannot fall obliquely. For the driving clamping table 2 and the driven clamping table 3, the clamping plane 23-a of the driving clamping table 2 and the driven clamping table 3 needs to be kept horizontal in the process from the feeding stage to the clamping state, if a certain inclination exists, the part to be welded is easy to slide when placed on the driving clamping table 2 and the driven clamping table 3, and a safety accident is serious, in the utility model, the driving clamping table 2 can be braked by the motor because the driving clamping table 2 is controlled to rotate by the motor, so that the clamping plane of the driving clamping table 2 in the feeding stage faces upwards and keeps horizontal in a mode of braking by the rotating motor d according to the requirement; for the driven clamping table 3, which is only connected with the base table 1 in a rotating way, that is, the rotation can occur when the force is applied to the surface of the driven clamping table 3, the position of the clamping plane 23-a can only be locked by the way that the locking mechanism 4 is matched with the plug-in part 34, so that the clamping plane 23-a of the driven clamping table 3 is upward and kept horizontal with the ground when the locking mechanism 4 is matched with the plug-in part 34 in the design. In the whole process of starting clamping the driving clamping table 2 and the driven clamping table 3 to finish welding, the driving clamping table 2 drives the driven clamping table 3 to rotate at the same rotating speed and the same rotating direction, and the relative positions of the clamping planes 23-a of the driving clamping table 2 and the driven clamping table 3 are kept unchanged, so that when the driven clamping table 3 is positioned by the locking mechanism 4 in cooperation with the plug-in part 34, the clamping planes 23-a of the driven clamping table 3 are kept horizontal, the clamping planes 32-a of the driving clamping table 2 are also kept horizontal, the driving clamping table 2 is kept horizontal by precisely controlling the driving clamping table 2 and the rotating motor d is not observed and regulated manually to promote the driving clamping table 2 to be horizontal, and in addition, the rotating motor d stops rotatingThe active clamping table 2 is braked, so long as the power supply of the rotating motor d is cut off to prevent the active clamping table from continuing to work, the position of the active clamping table a is kept unchanged when the active clamping table a is controlled to rotate by the rotating motor d next time, and in summary, the clamping planes 23-a of the active clamping table 2 and the driven clamping table 3 can be determined to be in an upward and horizontal state as long as the locking mechanism 4 is successfully matched with the plugging part 34. Referring to fig. 6, when the part 100 to be welded is placed on the two-side clamping type welding tool through the lifting tool, the clamping planes 23-a of the driving clamping table 2 and the driven clamping table 3 are kept in an upward and horizontal state, and the lower end surface of the part 100 to be welded waits for the next step of pressing down the clamping block 31 to finish the clamping step through the supporting stable positions of the two clamping planes 23-a.
In a further specific point of this,referring to fig. 4 and 5, the plugging portion 34 includes an insertion slot 341 adapted to the locking mechanism 4 and a shorting switch 342 located at a bottom end of the insertion slot 341; in the present utility model, the locking mechanism 4 only enters the interior of the plugging portion 34 (i.e. is inserted into the insertion groove 341) in a period from the feeding stage to the clamping state, and is mainly used for abutting against the shorting switch 342 in the insertion groove 341, in the present utility model, the shorting switch 342 and the circuit for controlling the cylinder motion of the movable clamping block 31 of the driven clamping table 3 are connected in parallel, in which, as shown in fig. 5, the shorting switch 342 and the power circuit for controlling the cylinder motion are specifically shown in the drawing, R1 is the working circuit of the driven clamping table 3, R2 is the load resistor, S1 is the shorting switch 342, under the normal energizing condition, S1 is in the off state, the current provided by the power supply flows through R1 and R2, at this time, the driven clamping table 3 is in the working state, when S1 is closed, R1 is shorted, the electrons provided by the power supply no longer pass through the line where R1 is located, and in the overall effect is equivalent to the driven clamping table 3 no longer having the clamping effect, and the existence of R2 is mainly prevented from burning out. In summary, with specific explanation of the whole structure, when the shorting switch 342 is pressed, because the resistance in the circuit is near zero, electrons pass through the circuit where the shorting switch 342 is connected, the circuit controlling the second cylinder C2 on the driven clamping table 3 is shorted, and at this time, the second cylinder C2 controlling the movement of the movable clamping block 31 temporarily stops working, and the partsAfter the clamping force of the driven clamping table 3 is no longer controlled, the clamping state of the driving clamping table 3 on the part can be easily removed, then a new part to be welded is placed in the clamping range of the driving clamping table 2 and the driven clamping table 3, when the pre-positioning of the driving clamping table 2 and the driven clamping table 3 on the new part to be welded is completed (the new part to be welded is placed on the clamping planes 23-a of the driving clamping table 2 and the driven clamping table 3), the locking mechanism 4 is withdrawn from the inserting groove 341, the shorting switch 342 is disconnected, current flows through the circuit of the second cylinder C2 of the driven clamping table 3, the second cylinder C2 is connected to enable clamping operation, at the moment, the first cylinder C1 and the second cylinder C2 clamp the part to be welded on the two clamping planes 32-a respectively, clamping fixing is carried out from the upper end and the lower end of the two sides of the part to be welded, the locking mechanism 4 is withdrawn from the inserting groove 341 completely when the clamping is completed, and at the moment, the driven clamping table 3 can rotate along with the driving clamping table 2.
In summary, the cooperation of the whole locking mechanism 4 and the plug-in portion 34 arranged on the driven clamping table 3 not only can stabilize the position of the driven clamping table 3 under the condition that any part is not clamped by the driven clamping table 3, but also can assist the driving clamping table 2 to select a proper position to stop the position and brake by a motor, so that the clamping state of the driven clamping table 3 is opened under the condition that the whole part is stably placed on the clamping plane 23-a, the part sliding caused by the inclination of the clamping plane 32-a during feeding and discharging is prevented, and safe and efficient welding is ensured.
In addition, considering the applicability problem, the two-side clamping type welding tool of the utility model has certain adjusting capability,tool with In the sense of the body, the device,the base 1 comprises a supporting bottom plate 11, a driving clamping table supporting seat 12 and a driven clamping table supporting seat 13, wherein the driving clamping table supporting seat 12 and the driven clamping table supporting seat 13 are arranged on the supporting bottom plate 11, a sliding rail 111 is arranged on the supporting bottom plate 11, the driving clamping table supporting seat 12 is in sliding connection with the supporting bottom plate 11 through the sliding rail 111, and the driving clamping table supporting seat 12 is controlled by a third air cylinder C3 to be close to/far away from the driven clamping table supporting seat 13. Based on the above structural arrangement, the directional movement of the active clamping table support base 12 under the control of the air cylinder is used for adjusting the active clamping table 2 and the slaveThe spacing between the movable clamping tables 3 is suitable for clamping welding parts with different lengths.
Still further, the method comprises the steps of,the parts processed by welding are generally metal parts, the mass of the parts is larger, the utility model mainly clamps the parts by the force applied by a first cylinder C1 and a second cylinder C2, if the first cylinder C1 and the second cylinder C2 have the air leakage condition in the working process of the machine, the driving clamping table 2 and the driven clamping table 3 are loosened at the same time, and because the tooling of the utility model is rotatable, under the condition that the air leakage condition occurs, the parts are not clear under the deflection angle, as long as the parts cannot obtain the effective clamping force or supporting force, the parts can fall off from the welding tooling, damage the machine even cause safety accidents, referring to figure 3, the utility model sets a safety locking plate 5 on the driven clamping table 3, after the driving clamping table 2 and the driven clamping table 3 are locked, the safety locking plate 5 is used for carrying out secondary mechanical locking on the position of the driven clamping table 3 at the moment, thus, even if the first cylinder C1 and the second cylinder C2 leak air simultaneously, the position of the driven clamping table 3 is still locked, so that at least the situation that parts fall off cannot occur, the lower end of the safety locking plate 5 is fixedly connected with the movable clamping block 31, the waist-shaped hole 5-a is formed in the safety locking plate 5, the threaded hole is formed in the fixed clamping seat 32, the safety locking plate 5 is detachably connected with the fixed clamping seat 32 through the positioning bolt, specifically, the positioning bolt passes through the waist-shaped hole 5-a and is in threaded fit with the threaded hole formed in the fixed clamping seat 32, the positioning bolt is continuously rotated by a spanner, so that the nut part of the positioning bolt is abutted against the safety locking plate 5, at the moment, the safety locking plate 5 is tightly attached to the fixed clamping seat 32, the position of the movable clamping block 31 relative to the fixed clamping seat 32, and the movable clamping block 31 cannot move under the action of external force, therefore, the clamping safety is ensured, when the movable clamping block 31 needs to move, only the positioning bolt is required to be loosened by a wrench, the positioning bolt is not required to be completely rotated out of the threaded hole, only the nut of the positioning bolt is required to be no longer closely attached to the safety locking plate 5, and in the process of moving the movable clamping block 31 up and down, the stud part of the positioning bolt relatively moves in the waist-shaped hole 5-a and does not interfere with the movement of the movable clamping block 31, so that the waist-shaped hole is formed when the safety locking plate 5 is designedThe length of 5-a is the same as the lifting distance of the movable clamp block 31.
The upper end face and the lower end face of two sides of a part to be welded are provided with matching grooves, the clamping plane 23-a and the lower end face of the movable clamping block 31 are provided with positioning columns 23-b, the positioning columns 23-b are round table-shaped and are fixed with the clamping plane 23-a or the lower end face of the movable clamping block 31, the bottom surface is larger than the top surface in area, the inner outline of the matching grooves is identical with the outer outline of the positioning columns 23-b, and the matching grooves are designed mainly for facilitating positioning of the welding part when the welding part is placed on the driving clamping table 2 and the driven clamping table 3.
Because the utility model is a rotatable tool, the driving clamping table 2 and the driven clamping table 3 are both provided with threading frames 6 for guiding the air pipe (the air pipe of the air cylinder is not shown in the figure) of the air cylinder to run, so that the air pipe is prevented from winding.
While preferred embodiments of the present utility model have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the utility model.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (9)
1. Both sides centre gripping formula welding frock, its characterized in that includes:
a base (1);
the active clamping table (2) is used for clamping the upper part and the lower part of one side of a part to be welded, a rotating motor (d) is arranged on the base table (1), the active clamping table (2) is in transmission connection with the rotating motor (d), and the rotating motor (d) controls the active clamping table (2) to rotate;
the driven clamping table (3) is rotationally connected with the base table (1) and is used for clamping the part to be welded relative to the upper part and the lower part of the other side of one side clamped by the driving clamping table (2);
the locking mechanism (4) is fixedly arranged on the base station (1), and the driven clamping table (3) is provided with a plug-in part (34) for the insertion of the locking mechanism (4); after the locking mechanism (4) is inserted into the inserting part (34), the driven clamping table (3) interrupts clamping of the part to be welded, and after the locking mechanism (4) leaves the inserting part (34), the driven clamping table (3) maintains clamping of the part to be welded;
the plug-in part (34) comprises an insertion groove (341) matched with the locking mechanism (4) and a short-circuit switch (342) positioned at the bottom end of the insertion groove (341); when the shorting switch (342) is turned off, the driven clamping table (3) maintains a clamping state.
2. The two-sided clamp type welding fixture of claim 1, wherein: the driving clamping table (2) or the driven clamping table (3) is provided with clamping planes (23-a) for supporting the lower end surfaces of the parts to be welded, the driving clamping table (2) or the driven clamping table (3) is used for controlling clamping or loosening the parts to be welded through vertical air cylinders, and the number of the vertical air cylinders is two and is respectively arranged above the driving clamping table (2) and the driven clamping table (3); when the locking mechanism (4) is inserted into the insertion groove (341), the end face of the clamping plane (23-a) faces upwards and is horizontal.
3. The two-sided clamp type welding fixture of claim 2, wherein: the two vertical cylinders are respectively a first cylinder (C1) used for controlling the driving clamping table (2) to clamp the part to be welded and a second cylinder (C2) used for controlling the driven clamping table (3) to clamp the part to be welded, the shorting switch (342) is used for controlling the second cylinder (C2), and when the shorting switch (342) is disconnected, the second cylinder (C2) is continuously pushed.
4. A two-sided clamp type welding fixture as claimed in claim 3, wherein: the driven clamping table (3) comprises a movable clamping block (31) and a fixed clamping seat (32), the clamping plane (23-a) is arranged on the fixed clamping seat (32) and is opposite to the lower end of the movable clamping block (31), and the movable clamping block (31) moves relative to the clamping plane (23-a) so as to clamp or loosen a part to be welded by the driven clamping table (3).
5. The two-sided clamp type welding fixture of claim 4, wherein: the automatic clamping device is characterized in that a safety locking plate (5) is further arranged on the driven clamping table (3), the safety locking plate (5) is fixedly connected with the movable clamping block (31), and the safety locking plate (5) is detachably connected with the fixed clamping seat (32) through a positioning bolt.
6. The two-sided clamp type welding fixture of claim 5, wherein: the safety locking plate (5) is provided with a waist-shaped hole (5-a), the fixed clamping seat (32) is provided with a threaded hole, the positioning bolt penetrates through the waist-shaped hole (5-a) to be in threaded fit with the threaded hole, the length of the waist-shaped hole (5-a) is matched with the lifting distance of the movable clamping block (31), and the nut part of the positioning bolt abuts against the safety locking plate (5) under the fixed state of the safety locking plate (5) and the fixed clamping seat (32).
7. The two-sided clamp type welding fixture of claim 6, wherein: the base station (1) comprises a supporting bottom plate (11), a driving clamping table supporting seat (12) and a driven clamping table supporting seat (13), wherein the driving clamping table supporting seat (12) and the driven clamping table supporting seat (13) are arranged on the supporting bottom plate (11), a sliding rail (111) is arranged on the supporting bottom plate (11), the driving clamping table supporting seat (12) is in sliding connection with the supporting bottom plate (11) through the sliding rail (111), and the driving clamping table supporting seat (12) is controlled by a third air cylinder (C3) to be close to/far away from the driven clamping table supporting seat (13).
8. The two-sided clamp type welding fixture of claim 4, wherein: positioning columns (23-b) are arranged on the lower end face of the movable clamping block (31) and the clamping plane (23-a).
9. The two-sided clamp type welding fixture of claim 1, wherein: the threading frame (6) is arranged on the driving clamping table (2) and the driven clamping table (3).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210245127.4A CN114393307B (en) | 2022-03-14 | 2022-03-14 | Both sides centre gripping formula welding frock |
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| CN202210245127.4A CN114393307B (en) | 2022-03-14 | 2022-03-14 | Both sides centre gripping formula welding frock |
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| CN114393307B true CN114393307B (en) | 2023-08-29 |
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| CN114749957A (en) * | 2022-04-28 | 2022-07-15 | 长沙立诚机械有限公司 | Large-scale rivet welding frock centre gripping lathe |
| CN115138971A (en) * | 2022-09-06 | 2022-10-04 | 江苏昊锐电气科技有限公司 | Laser welding equipment for bridge support parts |
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