CN214721837U

CN214721837U - Floating pressing device for welding fixture

Info

Publication number: CN214721837U
Application number: CN202120556918.XU
Authority: CN
Inventors: 王丛涛; 张海军; 谭平平; 王鹏
Original assignee: Shiyan City Fengruida Precision Machinery Manufacturing Co ltd
Current assignee: Shiyan City Fengruida Precision Machinery Manufacturing Co ltd
Priority date: 2021-03-18
Filing date: 2021-03-18
Publication date: 2021-11-16
Anticipated expiration: 2031-03-18

Abstract

The utility model discloses a floating pressing device for a welding fixture, which comprises a pressing component and a lifting component, wherein the pressing component comprises an upper pressing arm, a lower pressing arm, a first fixing plate, a floating pressing block, a workpiece, a positioning block, a second fixing plate, a hydraulic cylinder and a base; one side of the base is connected with a hydraulic cylinder through a bolt thread, a piston rod of the hydraulic cylinder is hinged with a lower pressure arm through a pin shaft, and a pressing surface at the bottom of the floating pressing block can be always attached to a workpiece through a pressing assembly when the size of the workpiece has smaller deviation, so that the workpiece is continuously pressed, and the condition that the produced product cannot meet the use requirement due to the fact that the workpiece is loosened during processing is avoided; the height of the upper pressing arm can be adjusted when the size deviation of the workpiece is large through the lifting assembly, and the floating pressing block can be continuously attached to the workpiece by lifting the upper pressing arm, so that the large-size workpiece can be pressed tightly.

Description

Floating pressing device for welding fixture

Technical Field

The utility model relates to a welding jig technical field specifically is a welding jig is with unsteady closing device.

Background

Passenger car frameworks and agricultural machinery products are mostly formed by welding sectional materials. According to the national standard requirements, the shape tolerance of the section bar is within plus or minus 0.5mm, and the section bar is deformed in the processing process of bending pipes and the like, so that the basic size is changed.

If the traditional pressing tool is used for operation, the workpiece cannot be pressed or only contacts one line when the workpiece is pressed, so that the position of the workpiece is very easy to deviate when the workpiece is produced, the produced product cannot meet the use requirement, the material waste is caused, and the working efficiency is reduced.

Therefore, the floating pressing device for the welding fixture is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a welding jig is with closing device that floats to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a floating pressing device for a welding fixture comprises a pressing assembly and a lifting assembly, wherein the pressing assembly comprises an upper pressing arm, a lower pressing arm, a first fixing plate, a floating pressing block, a workpiece, a positioning block, a second fixing plate, a hydraulic cylinder and a base;

one side of base has the pneumatic cylinder through bolt threaded connection, the piston rod of pneumatic cylinder articulates through the round pin axle has the below pressure arm, the top of below pressure arm is equipped with the top pressure arm, one side that the pneumatic cylinder was kept away from to the top pressure arm has two first fixed plates, two through bolt symmetry threaded connection, one side that first fixed plate is adjacent articulates through the round pin axle has the briquetting that floats, there is the second fixed plate bottom one side of below pressure arm through bolt threaded connection, the bottom of second fixed plate articulates in one side of base through the round pin axle, the inside of base is equipped with the locating piece, the top of locating piece is equipped with the work piece, the work piece is located under the briquetting that floats.

Preferably: the lifting assembly comprises a first limiting plate, two T-shaped slotted holes, a limiting rod, a screw rod, a second limiting plate, a threaded sleeve, a driven bevel gear, a cavity, a driving bevel gear, a bearing, a knob and a fixing rod;

the cavity is arranged in the upper pressing arm and the lower pressing arm, a lead screw is arranged in the cavity, and the bottom of the lead screw is rotatably connected to the inner bottom wall of the cavity through a bearing.

Preferably: the welding of the inside wall of top pressure arm has the threaded sleeve, threaded sleeve's inside wall threaded connection is in the lateral wall of lead screw, the welding of the top of lead screw has the second limiting plate.

Preferably: the bottom of the outer side wall of the screw rod is welded with a driven bevel gear, and the outer side wall of the driven bevel gear is connected with a driving bevel gear in a meshed mode.

Preferably: the inner side wall of the driving bevel gear is welded with a fixing rod, the fixing rod penetrates through one side of the lower pressing arm, and one side, far away from the driving bevel gear, of the fixing rod is welded with a knob.

Preferably: two T type slotted hole symmetry is seted up in the upper surface both sides of below pressure arm, two the inside of T type slotted hole all is equipped with the gag lever post.

Preferably: a first limiting plate is welded at the bottom of the limiting rod.

Preferably: the top of gag lever post welds in the bottom of top pressure arm.

Compared with the prior art, the beneficial effects of the utility model are that:

one, can make the face that compresses tightly of briquetting bottom float and the work piece laminating all the time when less deviation appears in the work piece size through compressing tightly the subassembly to continue to compress tightly the work piece, avoided appearing becoming flexible because the work piece is processing, the unsatisfied operation requirement's of product that leads to producing the condition appears.

The height of the upper pressing arm can be adjusted when the size deviation of the workpiece is large through the lifting assembly, and the floating pressing block can be continuously attached to the workpiece through the lifting of the upper pressing arm, so that the large-size workpiece can be pressed tightly.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a left side view schematic diagram of the floating press block of the present invention;

FIG. 3 is a schematic view of a sectional structure of the cavity of the present invention;

fig. 4 is an enlarged schematic view of the structure of the region a in fig. 3 according to the present invention.

In the figure: 1. a compression assembly; 10. a lower press arm; 101. an upper press arm; 11. a first fixing plate; 12. floating and pressing a block; 13. a workpiece; 14. positioning blocks; 15. a second fixing plate; 16. a hydraulic cylinder; 17. a base; 2. a lifting assembly; 20. a first limit plate; 21. t-shaped slotted holes; 22. a limiting rod; 23. a screw rod; 231. a second limiting plate; 232. a threaded sleeve; 24. a driven bevel gear; 25. a cavity; 26. a drive bevel gear; 27. a bearing; 28. a knob; 29. and (5) fixing the rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-4, the present invention provides a technical solution: a floating pressing device for a welding fixture comprises a pressing assembly 1 and a lifting assembly 2, wherein the pressing assembly 1 comprises an upper pressing arm 101, a lower pressing arm 10, a first fixing plate 11, a floating pressing block 12, a workpiece 13, a positioning block 14, a second fixing plate 15, a hydraulic cylinder 16 and a base 17;

one side of base 17 has pneumatic cylinder 16 through bolt threaded connection, pneumatic cylinder 16's piston rod articulates through the round pin axle has below pressure arm 10, the top of below pressure arm 10 is equipped with top pressure arm 101, one side that pneumatic cylinder 16 was kept away from to top pressure arm 101 has two first fixed plates 11 through bolt symmetry threaded connection, two adjacent one sides of first fixed plate 11 articulate through the round pin axle has unsteady briquetting 12, bottom one side of below pressure arm 10 has second fixed plate 15 through bolt threaded connection, the bottom of second fixed plate 15 articulates in one side of base 17 through the round pin axle, the inside of base 17 is equipped with locating piece 14, the top of locating piece 14 is equipped with work piece 13, work piece 13 is located unsteady briquetting 12 under.

In this embodiment, specifically: the lifting assembly 2 comprises a first limit plate 20, two T-shaped slotted holes 21, a limit rod 22, a screw rod 23, a second limit plate 231, a threaded sleeve 232, a driven bevel gear 24, a cavity 25, a driving bevel gear 26, a bearing 27, a knob 28 and a fixed rod 29;

the cavity 25 is arranged in the upper pressure arm 101 and the lower pressure arm 10, the screw rod 23 is arranged in the cavity 25, and the bottom of the screw rod 23 is rotatably connected to the inner bottom wall of the cavity 25 through the bearing 27; through the above arrangement, the rotation of the screw rod 23 can drive the threaded sleeve 232 to move, so that the upper pressing arm 101 can be lifted.

In this embodiment, specifically: a threaded sleeve 232 is welded on the inner side wall of the upper pressing arm 101, the inner side wall of the threaded sleeve 232 is in threaded connection with the outer side wall of the screw rod 23, and a second limiting plate 231 is welded on the top of the screw rod 23; through the above arrangement, the movement of the threaded sleeve 232 can drive the upper press arm 101 to move, so that the height of the upper press arm 101 is adjusted.

In this embodiment, specifically: a driven bevel gear 24 is welded at the bottom of the outer side wall of the screw rod 23, and a driving bevel gear 26 is meshed and connected with the outer side wall of the driven bevel gear 24; through the above arrangement, the rotation of the driving bevel gear 26 can drive the driven bevel gear 24 to rotate, and the rotation of the driven bevel gear 24 can drive the screw 23 to rotate.

In this embodiment, specifically: a fixing rod 29 is welded on the inner side wall of the drive bevel gear 26, the fixing rod 29 penetrates through one side of the lower pressing arm 10, and a knob 28 is welded on one side, far away from the drive bevel gear 26, of the fixing rod 29; with the above arrangement, the rotation knob 28 can drive the fixing rod 29 to rotate, and the rotation of the fixing rod 29 can drive the driving bevel gear 26 to rotate.

In this embodiment, specifically: the two T-shaped slotted holes 21 are symmetrically formed in two sides of the upper surface of the lower pressure arm 10, and limiting rods 22 are arranged inside the two T-shaped slotted holes 21; with the above arrangement, the stopper rod 22 can be restricted in position when the upper press arm 101 is raised.

In this embodiment, specifically: the bottom of the limiting rod 22 is welded with a first limiting plate 20; through the arrangement, the first limiting plate 20 can limit the position of the limiting rod 22 and prevent the limiting rod from separating from the inside of the T-shaped slotted hole 21.

In this embodiment, specifically: the top of the limiting rod 22 is welded at the bottom of the upper pressing arm 101; through the above arrangement, when the upper pressing arm 101 moves, the limiting rod 22 can be driven to move, so that the position of the upper pressing arm 101 is conveniently limited.

In this embodiment: hydraulic cylinder 16 is model MOB50 x 50.

Working principle or structural principle: the workpiece 13 is placed through the positioning block 14, when the workpiece 13 needs to be pressed, the hydraulic cylinder 16 is started, the piston rod of the hydraulic cylinder 16 moves to drive the lower pressing arm 10 to move, the lower pressing arm 10 drives the upper pressing arm 101 to move, the upper pressing arm 101 drives the first fixing plate 11 to move, the first fixing plate 11 drives the floating pressing block 12 to move, so that the workpiece 13 is pressed through the floating pressing block 12, when the basic size of the workpiece 13 is reduced, the piston rod continues to extend at the moment, meanwhile, the floating pressing block 12 rotates around the pin shaft, so that the pressing surface at the bottom of the floating pressing block 12 is still in a fit state with the workpiece 13, so that the workpiece 13 continues to be pressed, similarly, when the basic size of the workpiece 13 is increased, the piston rod does not reach a theoretical state, the floating pressing block 12 also rotates around the rotating pin shaft, so that the pressing surface at the bottom of the floating pressing block 12 is still in a fit state with the workpiece 13, and the pressing is continued, but when the height of the workpiece 13 is too high, the floating press block 12 cannot attach the workpiece 13, at this time, the knob 28 is rotated, the rotation of the knob 28 can drive the fixing rod 29 to rotate, the rotation of the fixing rod 29 can drive the driving bevel gear 26 to rotate, the rotation of the driving bevel gear 26 can drive the driven bevel gear 24 to rotate, the rotation of the driven bevel gear 24 can drive the screw rod 23 to rotate, the rotation of the screw rod 23 can enable the threaded sleeve 232 to move up and down, the up and down movement of the threaded sleeve 232 can drive the upper press arm 101 to move, the movement of the floating press block 12 is driven by the movement of the upper press arm 101, so that the height of the floating press block 12 is increased, the floating press block can press the workpiece 13 with larger size, the device can press the workpiece 13 with smaller size deviation through the press assembly 1, the pressing surface of the floating pressing block 12 is always attached to the workpiece 13 to be pressed, and after the size deviation is large, the height of the upper pressing arm 101 can be adjusted through the lifting assembly 2, so that the pressing requirement of the large-size workpiece 13 is met.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a welding jig is with closing device that floats, is including compressing tightly subassembly (1) and lifting unit (2), its characterized in that: the pressing assembly (1) comprises an upper pressing arm (101), a lower pressing arm (10), a first fixing plate (11), a floating pressing block (12), a workpiece (13), a positioning block (14), a second fixing plate (15), a hydraulic cylinder (16) and a base (17);

one side of the base (17) is connected with a hydraulic cylinder (16) through a bolt thread, a piston rod of the hydraulic cylinder (16) is hinged with a lower pressure arm (10) through a pin shaft, an upper pressure arm (101) is arranged above the lower pressure arm (10), one side of the upper pressure arm (101) far away from the hydraulic cylinder (16) is symmetrically connected with two first fixing plates (11) through bolts and threads, one adjacent side of the two first fixing plates (11) is hinged with a floating pressing block (12) through a pin shaft, one side of the bottom of the lower pressure arm (10) is connected with a second fixing plate (15) through a bolt thread, the bottom of the second fixing plate (15) is hinged on one side of the base (17) through a pin shaft, the floating pressing block device is characterized in that a positioning block (14) is arranged inside the base (17), a workpiece (13) is arranged above the positioning block (14), and the workpiece (13) is located under the floating pressing block (12).

2. The floating pressing device for a welding jig according to claim 1, characterized in that: the lifting assembly (2) comprises a first limiting plate (20), two T-shaped slotted holes (21), a limiting rod (22), a screw rod (23), a second limiting plate (231), a threaded sleeve (232), a driven bevel gear (24), a cavity (25), a driving bevel gear (26), a bearing (27), a knob (28) and a fixing rod (29);

the cavity (25) is arranged in the upper pressing arm (101) and the lower pressing arm (10), the screw rod (23) is arranged in the cavity (25), and the bottom of the screw rod (23) is rotatably connected to the bottom wall of the cavity (25) through a bearing (27).

3. The floating pressing device for a welding jig according to claim 2, characterized in that: the inside wall welding of top pressure arm (101) has threaded sleeve (232), the inside wall threaded connection of threaded sleeve (232) is in the lateral wall of lead screw (23), the top welding of lead screw (23) has second limiting plate (231).

4. The floating pressing device for a welding jig according to claim 2, characterized in that: the outer side wall bottom welding of lead screw (23) has driven bevel gear (24), the meshing of the outer side wall of driven bevel gear (24) is connected with initiative bevel gear (26).

5. The floating pressing device for a welding jig according to claim 4, characterized in that: the fixing rod (29) is welded on the inner side wall of the driving bevel gear (26), the fixing rod (29) penetrates through one side of the lower pressing arm (10), and a knob (28) is welded on one side, far away from the driving bevel gear (26), of the fixing rod (29).

6. The floating pressing device for a welding jig according to claim 2, characterized in that: the two T-shaped slotted holes (21) are symmetrically arranged on two sides of the upper surface of the lower pressing arm (10), and limiting rods (22) are arranged inside the two T-shaped slotted holes (21).

7. The floating pressing device for a welding jig according to claim 6, characterized in that: a first limiting plate (20) is welded at the bottom of the limiting rod (22).

8. The floating pressing device for a welding jig according to claim 6 or 7, characterized in that: the top of the limiting rod (22) is welded to the bottom of the upper pressing arm (101).