Clamp for welding automobile body sheet
Technical Field
The utility model relates to the field of automobile body piece processing equipment, in particular to a clamp for welding an automobile body piece.
Background
In the assembly welding production process of automobile bodies, in order to ensure the product quality, improve the labor productivity and reduce the labor intensity, tools and devices for clamping and determining the positions of workpieces are often used for assembly and welding. These tools and devices are collectively referred to as a weld fixture.
However, the clamp for welding the automobile body piece on the market has the phenomenon of unstable clamping, the automobile body piece is easily turned over and scraped due to looseness during welding, the automobile body piece is not convenient to take, place and mount, and the production efficiency of the automobile body piece is affected.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical scheme capable of solving the problems in order to overcome the defects.
A clamp for welding an automobile body sheet comprises a rack, wherein a clamp mounting platform is arranged on the upper side of the rack, a plurality of clamp main bodies which are uniformly arranged are arranged above the clamp mounting platform, and each clamp main body comprises an inner surface clamp holder and an outer surface clamp holder;
the inner surface clamp holder comprises a mounting frame, a first air cylinder, a first transmission mechanism and a first clamping block, wherein the first air cylinder is fixedly arranged on the mounting frame, the first transmission mechanism is fixed on the rear side of the mounting frame, the first clamping block is arranged on the rear side of the mounting frame in a rotating fit mode, and the first air cylinder drives the first clamping block to turn forwards through the first transmission mechanism;
the outer surface clamp holder comprises a first underframe, a second cylinder, a second transmission mechanism and a second clamping block, wherein the end part of the second cylinder is installed on the first underframe in a rotating fit manner, the second transmission mechanism is arranged between a telescopic rod of the second cylinder and the second clamping block, and the second cylinder drives the second clamping block to move back and forth through the second transmission mechanism;
the first clamping block is forwards overturned and extruded at the rear side of the second clamping block.
As a further scheme of the utility model: the fixture mounting platform is fixedly provided with a transverse guide rail, the transverse guide rail is provided with a first sliding plate in a sliding fit manner, and the mounting frame and the first chassis are fixedly mounted on the upper side of the first sliding plate.
As a further scheme of the utility model: first drive mechanism includes the locating plate, transmission piece and first connecting rod, the upside shaping of mounting bracket has the L template, the front end at the L template is installed to the front end normal running fit of first cylinder, the telescopic link department fixed mounting of first cylinder rear end has first U type frame, the middle part normal running fit of transmission piece is installed in first U type frame, the front end shaping of transmission piece has first through-hole, the left end shaping of first grip block has the second through-hole, the locating plate is equipped with two that separately arrange from top to bottom, fixed mounting has primary shaft and secondary shaft between two locating plates, the outside at the primary shaft is installed to the first through-hole normal running fit of transmission piece, the outside at the secondary shaft is installed to the second through-hole normal running fit of first grip block, first connecting rod normal running fit is installed between the rear end of transmission piece and first grip block.
As a further scheme of the utility model: the second transmission mechanism comprises a second underframe, a longitudinal guide rail, a second sliding plate, a second U-shaped frame, a second connecting rod and a third connecting rod, the longitudinal guide rail is fixedly installed on the first sliding plate, the second sliding plate is installed on the longitudinal guide rail in a sliding fit mode, the second U-shaped frame is fixedly installed at the position of a telescopic rod of the second air cylinder, the second underframe is fixedly installed on the first sliding plate, the front end of the second connecting rod is installed in the second underframe in a rotating fit mode, the rear end of the second connecting rod is installed in the second U-shaped frame in a rotating fit mode, the front end of the third connecting rod is installed in the second U-shaped frame in a rotating fit mode, the rear end of the third connecting rod is installed on the second sliding plate in a rotating fit mode, and the second clamping block is fixedly installed on the rear side of the second sliding plate.
As a further scheme of the utility model: fixed mounting has first right-angle frame on the first slide, and first right-angle frame sets up on the right-hand side of second connecting rod, and adjusting bolt is installed in the upper end screw fit of first right-angle frame, and adjusting bolt's inner end is pressed on the right side of second connecting rod.
As a further scheme of the utility model: the rear end fixed mounting on first slide upside surface has the second right angle frame, and the rear end of second right angle frame extends first slide setting, and the rear side edge of second slide sets up the front side in second right angle frame upper end along the setting.
Compared with the prior art, the utility model has the beneficial effects that: the automobile body piece of the automobile is placed on the fixture mounting platform, the inner side surface of the automobile body piece is clamped through the inner surface clamp holder, the outer side surface of the automobile body piece is clamped through the outer surface clamp holder, the inner surface clamp holder is driven through the first air cylinder, the outer surface clamp holder is driven through the second air cylinder, the automobile body piece can be stably clamped, welding and mounting are conveniently conducted on the automobile body piece, the first clamping block of the inner surface clamp holder is overturned and extruded on the rear side of the second clamping block, mounting and dismounting of the automobile body piece are facilitated, and therefore welding efficiency of the automobile body piece is improved.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of the present invention.
FIG. 2 is a schematic view of the structure of the body of the clip of the present invention.
Fig. 3 is a schematic view of the structure of the inner surface holder of the present invention.
Fig. 4 is a schematic structural view of the hidden positioning plate of the inner surface clamp of the utility model.
Fig. 5 is a schematic view of the outer surface holder of the present invention.
Shown in the figure: 1. a frame; 2. a clamp mounting platform; 3. a clamp body; 31. an inner surface holder; 32. an outer surface holder; 311. a mounting frame; 312. a first cylinder; 313. a first transmission mechanism; 314. a first clamping block; 321. a first chassis; 322. a second cylinder 323 and a second transmission mechanism; 324. a second clamping block; 4. a transverse guide rail; 5. a first slide plate; 3131. positioning a plate; 3132. a transmission block; 3133. a first link; 6. an L-shaped plate; 7. a first U-shaped frame; 8. a first through hole; 9. a second through hole; 10. a first shaft; 11. a second shaft; 3231. a second chassis; 3232. a longitudinal guide rail; 3233. a second slide plate; 3234. a second U-shaped frame; 3235. a second link; 3236. a third link; 12. a first right-angle stand; 13. adjusting the bolt; 14. and a second right-angle frame.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, a fixture for welding automobile body sheets comprises a frame 1, a fixture mounting platform 2 is arranged on the upper side of the frame 1, a plurality of fixture main bodies 3 are uniformly arranged above the fixture mounting platform 2, and each fixture main body 3 comprises an inner surface clamp 31 and an outer surface clamp 32;
the inner surface clamp 31 comprises a mounting frame 311, a first cylinder 312, a first transmission mechanism 313 and a first clamping block 314, wherein the first cylinder 312 is fixedly arranged on the mounting frame 311, the first transmission mechanism 313 is fixed on the rear side of the mounting frame 311, the first clamping block 314 is arranged on the rear side of the mounting frame 311 in a rotating fit manner, and the first cylinder 312 drives the first clamping block 314 to turn forwards through the first transmission mechanism 313;
the outer surface clamp 32 comprises a first base frame 321, a second air cylinder 322, a second transmission mechanism 323 and a second clamping block 324, wherein the end part of the second air cylinder 322 is rotatably installed on the first base frame 321 in a matching way, the second transmission mechanism 323 is arranged between the telescopic rod of the second air cylinder 322 and the second clamping block 324, and the second air cylinder 322 drives the second clamping block 324 to move back and forth through the second transmission mechanism 323;
the first clamping block 314 is turned forward and is extruded at the rear side of the second clamping block 324;
the principle is as follows: the automobile body piece of the automobile is placed on the fixture mounting platform 2, the inner side surface of the automobile body piece is clamped through the inner surface clamp 31, the outer side surface of the automobile body piece is clamped through the outer surface clamp 32, the inner surface clamp 31 is driven through the first air cylinder 312, the outer surface clamp 32 is driven through the second air cylinder 322, the automobile body piece can be stably clamped, welding and mounting on the automobile body piece are facilitated, the first clamping block 314 of the inner surface clamp 31 is overturned and extruded on the rear side of the second clamping block 324, mounting and dismounting of the automobile body piece are facilitated, and therefore welding efficiency of the automobile body piece is improved.
As a further scheme of the utility model: a transverse guide rail 4 is fixedly arranged on the clamp mounting platform 2, a first sliding plate 5 is arranged on the transverse guide rail 4 in a sliding fit manner, and the mounting frame 311 and the first chassis 321 are fixedly arranged on the upper side of the first sliding plate 5; the position of the clamp main body 3 can be adjusted on the clamp mounting platform 2, and the clamp is convenient to use.
As a further scheme of the utility model: the first transmission mechanism 313 includes a positioning plate 3131, a driving block 3132 and a first connecting rod 3133, an L-shaped plate 6 is formed on the upper side of the mounting frame 311, the front end of the first cylinder 312 is rotatably fitted to the front end of the L-shaped plate 6, a first U-shaped frame 7 is fixedly mounted at the telescopic rod at the rear end of the first cylinder 312, the middle part of the driving block 3132 is rotatably fitted in the first U-shaped frame 7, a first through hole 8 is formed at the front end of the driving block 3132, a second through hole 9 is formed at the left end of the first clamping block 314, two positioning plates 3131 are separately arranged up and down, a first shaft 10 and a second shaft 11 are fixedly mounted between the two positioning plates 3131, the first through hole 8 of the driving block 3132 is rotatably fitted to the outer side of the first shaft 10, the second through hole 9 of the first clamping block 314 is rotatably fitted to the outer side of the second shaft 11, and the first connecting rod 3133 is rotatably fitted between the rear end of the driving block 3132 and the first clamping block 314; the first cylinder 312 drives the first U-shaped frame 7 to move, the first U-shaped frame 7 drives the driving block 3132 to rotate around the first shaft 10, and the first U-shaped frame 7 drives the first clamping block 314 to press the inner side surface of the vehicle body panel through the first connecting rod 3133 when rotating.
As a further scheme of the utility model: the second transmission mechanism 323 comprises a second bottom frame 3231, a longitudinal guide rail 3232, a second sliding plate 3233, a second U-shaped frame 3234, a second connecting rod 3235 and a third connecting rod 3236, the longitudinal guide rail 3232 is fixedly installed on the first sliding plate 5, the second sliding plate 3233 is installed on the longitudinal guide rail 3232 in a sliding fit manner, the second U-shaped frame 3234 is fixedly installed at an expansion rod of the second cylinder 322, the second bottom frame 3231 is fixedly installed on the first sliding plate 5, the front end of the second connecting rod 3235 is installed in the second bottom frame 3231 in a rotating fit manner, the rear end of the second connecting rod 3235 is installed in the second U-shaped frame 3234 in a rotating fit manner, the front end of the third connecting rod 3236 is installed in the second U-shaped frame 3234 in a rotating fit manner, the rear end of the third connecting rod 3236 is installed on the second sliding plate 3233 in a rotating fit manner, and the second clamping block 324 is fixedly installed at the rear side of the second sliding plate 3233; the second cylinder 322 drives the second U-shaped frame 3234 to move, the second U-shaped frame 3234 drives the second connecting rod 3235 and the third connecting rod 3236 to move, so that the second connecting rod 3235 and the third connecting rod 3236 are in a linear state or a bent state, and the second sliding plate 3233 is driven to slide on the longitudinal guide rail 3232, and the second sliding plate 3233 drives the second clamping block 324 to press the outer side surface of the car body.
As a further scheme of the utility model: a first right-angle bracket 12 is fixedly arranged on the first sliding plate 5, the first right-angle bracket 12 is arranged on the right side of the second connecting rod 3235, an adjusting bolt 13 is spirally matched and arranged at the upper end of the first right-angle bracket 12, and the inner end of the adjusting bolt 13 is pressed on the right side of the second connecting rod 3235; the position of the adjusting bolt 13 is adjusted by screw-fitting on the first right-angle bracket 12, thereby defining the movable distance of the second link 3235 and thus the movement amplitude of the second clamp block 324, so that the pressing force of the second clamp block 324 against the outer side surface of the vehicle body panel can be adjusted.
As a further scheme of the utility model: a second right-angle frame 14 is fixedly installed at the rear end of the upper side surface of the first sliding plate 5, the rear end of the second right-angle frame 14 extends out of the first sliding plate 5, and the rear side edge of the second sliding plate 3233 is arranged at the front side of the upper end of the second right-angle frame 14; the distance that the second slide plate 3233 moves backward can be limited for convenience of use.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.