Clamp for die welding

Abstract

The utility model discloses a clamp for die welding, which relates to the field of welding and comprises a base, a gear box and a lifting platform. The number of the gear boxes is a pair, the gear boxes are fixedly installed on the two sides of the base, the lifting table is movably installed on the gear boxes, and a lifting assembly is installed between the lifting table and the gear boxes. A pair of air cylinders is symmetrically and fixedly installed on the lifting table, and clamping plates are installed at the telescopic ends of the air cylinders through dismounting assemblies. The dismounting assembly comprises a hinged positioning plate and plate grooves, replacement shafts are fixedly installed on the clamping plates, and the multiple plate grooves are formed in the replacement shafts in an annular array mode, so that the problems that according to an existing clamp for die welding, the clamping plates for the clamp are inconvenient to replace, and due to the fact that to-be-welded dies are different in shape, the clamping plates cannot be replaced conveniently are effectively solved. In the prior art, dies in different shapes are difficult to stably clamp by using one clamping plate, and the height of an existing clamp is inconvenient to adjust, so that the application range is small.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of welding, concretely is a fixture for die welding. BACKGROUND

[0002] The die is the tool that the blank becomes the workpiece with specific shape and size under the action of external force, is widely used in blanking, die forging, cold heading, extrusion, powder metallurgy part pressing, pressure casting and the forming processing such as the compression or injection of engineering plastics, rubber, ceramic products.In the die welding process, in order to improve the present welding stability, weld uniformity etc., and ensure the quality of the welding product, the fixture will be used to fix the workpiece.

[0003] However, the existing die welding fixture is inconvenient to replace the clamping plate, because the shapes of the dies to be welded are different, it is difficult to use one clamping plate to stably clamp dies of different shapes, and the height of the existing fixture is inconvenient to adjust, so the application range is small. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of the prior art, the utility model provides a fixture for die welding, which solves the technical problems raised in the background art.

[0005] To achieve the above object, the utility model realizes the following technical scheme: a fixture for die welding, comprising a base, a gear box, a lifting platform;

[0006] The gear box is one pair, and the pair of gear boxes are fixedly installed on the two sides of the base, the lifting platform is movably installed on the pair of gear boxes, and a lifting assembly is installed between the lifting platform and the pair of gear boxes;

[0007] A pair of air cylinders are fixedly installed on the lifting platform in a symmetrical manner, and the extension ends of the pair of air cylinders are both provided with clamping plates through dismounting assemblies;

[0008] The dismounting assembly comprises a hinged positioning plate and a plate groove, a replacement shaft is fixedly installed on the clamping plate, a plurality of plate grooves are formed in an annular array on the replacement shaft, and a plurality of positioning plates matched with the plate grooves are hinged to the extension end of the air cylinder in an annular array.

[0009] Preferably, a fixing sleeve is fixedly installed on the extension end of the air cylinder, a pair of fixed plates are fixedly installed on the fixing sleeve, a gear is rotatably installed on the pair of fixed plates, a pair of toothed plates engaged with the gear are slidably installed on the extension end of the air cylinder, a fastening sleeve is fixedly installed on one side of the pair of toothed plates, and a pair of sliding openings for facilitating the sliding of the toothed plates are formed in the inner side of the fixing sleeve.

[0010] Preferably, a plurality of mounting grooves are arranged in an annular array on the telescopic end of the air cylinder, and a plurality of positioning plates are hinged to the mounting grooves through hinge shafts.

[0011] Preferably, the lifting assembly comprises threaded rods and threaded sleeves, a pair of threaded rods are vertically rotatably installed in a pair of gear boxes, the top ends of the threaded rods extend out of the gear boxes, a pair of the threaded sleeves are fixedly installed at the bottom of the lifting table, the threaded sleeves are screw-connected with the threaded rods, and a limiting sleeve is fixedly installed on the gear box and in sliding connection with the threaded sleeve.

[0012] Preferably, a double-shaft motor is fixedly installed on the base, rotating rods are fixedly installed on the two sides of the double-shaft motor, driving bevel gears are fixedly installed on the rotating rods, and a pair of driven bevel gears are fixedly installed on the threaded rods and in meshing connection with the driving bevel gears.

[0013] Preferably, a driving assembly for driving synchronous transmission of the pair of gears is installed on the fixing sleeve.

[0014] Beneficial effects

[0015] The clamp for die welding has the following beneficial effects:

[0016] 1. The pair of air cylinders are installed on the lifting table, the air cylinders are started, the telescopic end of the air cylinder is telescopic to drive the clamping plate to move, so that the die to be welded can be clamped and fixed, the plate groove is formed in the replacement shaft, the positioning plate is hinged to the telescopic end of the air cylinder, the positioning plate is placed in the plate groove, and the replacement shaft and the clamping plate can be replaced, so that different clamping plates can be replaced to clamp and fix the die to be welded.

[0017] 2. The fixing sleeve is installed, the fixing plate is installed on the fixing sleeve, the gear is rotatably installed on the fixing plate, the gear is installed, the gear is rotated, the gear is in meshing connection with the toothed plate to drive the toothed plate to move, the sliding opening is formed, the toothed plate can move through the sliding opening, the fastening sleeve is installed, the fastening sleeve is moved to the outside of the plurality of positioning plates to fasten the positioning plates, the positioning plate and the plate groove are more closely connected, and the replacement shaft and the clamping plate are more stably installed. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a front view of the internal structure of the utility model;

[0019] Figure 2 It is Figure 1 An enlarged schematic view of A.

[0020] In the figure: 1, base; 2, gear box; 3, lifting platform; 4, cylinder; 5, clamping plate; 6, positioning plate; 7, fastening sleeve; 8, fixed sleeve; 9, fixed plate; 10, gear; 11, toothed plate; 12, double-shaft motor; 13, driving bevel gear; 14, driven bevel gear; 15, threaded rod; 16, threaded sleeve; 17, replacement shaft; 18, limiting sleeve. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, wherein the orientation terms such as "upper", "lower" and the like mentioned in the present article take the orientation of the drawings as the reference. Figure 1

[0022] Please refer to Figures 1-2 The utility model provides a kind of technical scheme: a fixture for die welding, including base 1, gear box 2, lifting platform 3;

[0023] Gear box 2 is one pair, and a pair of gear box 2 is fixedly installed on the both sides of base 1, and lifting platform 3 is movably installed on a pair of gear box 2, and lifting assembly is installed between lifting platform 3 and a pair of gear box 2;

[0024] A pair of air cylinders 4 are symmetrically fixedly installed on lifting platform 3, and the telescopic end of a pair of air cylinders 4 is all installed with clamping plate 5 by dismounting assembly;

[0025] Dismounting assembly includes hinged positioning plate 6 and plate groove, and replacement shaft 17 is fixedly installed on clamping plate 5, and a plurality of plate grooves are formed in annular array on replacement shaft 17, and the telescopic end of air cylinder 4 is hinged with a plurality of positioning plates 6 matched with plate groove in annular array.

[0026] By installing lifting platform 3, a pair of air cylinders 4 can be installed on lifting platform 3, air cylinder 4 is started, and the telescopic end of air cylinder 4 can drive clamping plate 5 to move, so that the die to be welded can be clamped and fixed, by installing lifting assembly, lifting platform 3 can be lifted by starting lifting assembly, the application range of lifting platform 3 is expanded, by forming plate groove on replacement shaft 17 and hinging positioning plate 6 on the telescopic end of air cylinder 4, positioning plate 6 is placed in plate groove, the replacement of replacement shaft 17 and clamping plate 5 can be completed, so as to replace different clamping plates 5 to clamp and fix the die to be welded.

[0027] Further, fixed sleeve 8 is fixedly installed on the telescopic end of air cylinder 4, a pair of fixed plates 9 are fixedly installed on fixed sleeve 8, gear 10 is rotatably installed on a pair of fixed plates 9, a pair of toothed plates 11 engaged with gear 10 are slidably installed on the telescopic end of air cylinder 4, fastening sleeve 7 is fixedly installed on one side of a pair of toothed plates 11, and a pair of sliding openings for the sliding of toothed plate 11 are formed in the inner side of fixed sleeve 8.

[0028] ​By installing the fixing sleeve 8, the fixing plate 9 can be installed on the fixing sleeve 8, by installing the fixing plate 9, the gear 10 can be rotatably installed on the fixing plate 9, by installing the gear 10, the gear 10 rotates, by the meshing of the gear 10 and the toothed plate 11, the toothed plate 11 can be driven to move, so that the toothed plate 11 can be moved, by opening the sliding port, the toothed plate 11 can move through the sliding port, by installing the fastening sleeve 7, when the fastening sleeve 7 moves to the outside of the plurality of positioning plates 6, the plurality of positioning plates 6 can be fastened, the connection between the positioning plate 6 and the plate groove is more closely, and the installation of the replacement shaft 17 and the clamping plate 5 is more stable.

[0029] Further, a plurality of installation grooves are arranged in an annular array on the telescopic end of the cylinder 4, and the plurality of positioning plates 6 are hingedly connected in the installation grooves through a hinge shaft. The two side walls of the positioning plate 6 are fixedly connected with the installation groove through a torsion spring.

[0030] By arranging the plurality of installation grooves, the positioning plate 6 can be hingedly connected in the installation groove, and by arranging the torsion spring, when the fastening sleeve 7 moves to no longer fasten the positioning plate 6, the positioning plate 6 can be automatically opened under the action of the torsion spring, so as to facilitate the removal of the replacement shaft 17 and the clamping plate 5.

[0031] Further, the lifting assembly comprises a threaded rod 15 and a threaded sleeve 16. The pair of threaded rods 15 are vertically rotatably installed in the pair of gear boxes 2, and the top ends of the threaded rods 15 extend to the outside of the gear boxes 2. The pair of threaded sleeves 16 are fixedly installed at the bottom of the lifting platform 3. The pair of threaded sleeves 16 are screw-connected with the threaded rods 15. The limiting sleeve 18 is fixedly installed on the gear box 2, and the threaded sleeve 16 is slidingly connected with the limiting sleeve 18.

[0032] By installing the threaded rod 15, the rotation of the threaded rod 15 can drive the threaded sleeve 16 to lift, so as to drive the lifting platform 3 to lift, and the height of the lifting platform 3 and the clamp can be changed to expand the application range of the clamp. By installing the limiting sleeve 18, the threaded sleeve 16 can be limited during lifting, so as to effectively prevent the threaded sleeve 16 from rotating during lifting.

[0033] Further, the base 1 is fixedly installed with a double-shaft motor 12. The double-shaft motor 12 is fixedly installed with a rotating rod on both sides. The rotating rod is fixedly installed with a driving bevel gear 13. The pair of threaded rods 15 are fixedly installed with a driven bevel gear 14 meshing with the driving bevel gear 13.

[0034] By installing the double-shaft motor 12, the rotation of the double-shaft motor 12 drives the rotating rod to rotate, thereby driving the driving bevel gear 13 to rotate. The driving bevel gear 13 meshes with the driven bevel gear 14 to drive the driven bevel gear 14 to rotate, thereby driving the threaded rod 15 to rotate.

[0035] Further, the fixing sleeve 8 is provided with a driving assembly for driving the pair of gears 10 to synchronously rotate.

[0036] Those skilled in the art will connect all electrical components in the present case with their adapted power supply through wires, and should select appropriate controllers according to actual conditions to meet the control requirements.

[0037] The working principle and use process of the utility model: in use, start double-shaft motor 12, drive a pair of driving bevel gears 13 to rotate, drive screw rod 15 to rotate through driving bevel gears 13 and driven bevel gears 14 meshing, so that threaded sleeve 16 can be driven to lift, to adjust lifting platform 3 to the appropriate position, replace shaft 17 installation end with suitable clamping plate 5 in a plurality of positioning plates 6, a plurality of positioning plates 6 are placed in the plate groove, so that the replacement shaft 17 is preliminarily installed, start synchronous drive assembly to drive a pair of gears 10 to rotate, drive a pair of toothed plates 11 to move through gear 10 and toothed plate 11 meshing, to drive fastening sleeve 7 to move, until a plurality of positioning plates 6, a plurality of positioning plates 6 are fastened, the installation of clamping plate 5 is completed, start air cylinder 4, the extension end of air cylinder 4 is elongated to drive clamping plate 5 to move, the mold can be clamped and fixed, after clamping is completed, the mold is welded and processed.

[0038] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A jig for die welding, characterized by, Including base (1), gear box (2), lifting platform (3); The gear box (2) is one pair, and the gear box (2) is fixedly installed on both sides of the base (1). The lifting platform (3) is movably installed on the pair of gear boxes (2), and the lifting assembly is installed between the lifting platform (3) and the pair of gear boxes (2). A pair of air cylinders (4) are symmetrically and fixedly installed on the lifting platform (3), and the telescopic ends of the pair of air cylinders (4) are both provided with clamping plates (5) through dismounting assemblies. The dismounting assembly comprises a hinged positioning plate (6) and a plate groove, the clamping plate (5) is fixedly provided with a replacement shaft (17), a plurality of plate grooves are formed in the replacement shaft (17) in an annular array, and the telescopic end of the air cylinder (4) is hinged with a plurality of positioning plates (6) matched with the plate grooves in an annular array.

2. The fixture for die welding according to claim 1, wherein The telescopic end of the air cylinder (4) is fixedly provided with a fixed sleeve (8), a pair of fixed plates (9) are fixedly installed on the fixed sleeve (8), a gear (10) is rotatably installed on the pair of fixed plates (9), a pair of toothed plates (11) engaged with the gear (10) are slidably installed on the telescopic end of the air cylinder (4), and a fastening sleeve (7) is fixedly installed on one side of the pair of toothed plates (11). A pair of sliding openings are formed in the inner side of the fixed sleeve (8) to facilitate the sliding of the toothed plate (11).

3. The fixture for die welding according to claim 2, wherein The telescopic end of the air cylinder (4) is provided with a plurality of installation grooves in an annular array, a plurality of positioning plates (6) are hinged in the installation grooves through hinge shafts, and torsional springs are fixedly connected between the side walls of the positioning plate (6) and the installation grooves.

4. The fixture for die welding according to claim 1, wherein The lifting assembly comprises a threaded rod (15) and a threaded sleeve (16), a pair of threaded rods (15) are vertically rotatably installed in a pair of gear boxes (2), the top end of the threaded rod (15) extends out of the gear box (2), a pair of threaded sleeves (16) are fixedly installed at the bottom of the lifting platform (3), the pair of threaded sleeves (16) are screwed with the threaded rod (15), a limiting sleeve (18) is fixedly installed on the gear box (2), and the threaded sleeve (16) is slidably connected with the limiting sleeve (18).

5. The fixture for die welding according to claim 4, wherein A double-shaft motor (12) is fixedly installed on the base (1), a rotating rod is fixedly installed on both sides of the double-shaft motor (12), a driving bevel gear (13) is fixedly installed on the rotating rod, and a driven bevel gear (14) engaged with the driving bevel gear (13) is fixedly installed on the pair of threaded rods (15).

6. The fixture for die welding according to claim 2, wherein The fixed sleeve (8) is provided with a driving assembly for driving a pair of gears (10) to synchronously transmit power.

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