CN205703050U - A five-degree-of-freedom mobile welding fixture - Google Patents

Abstract

The utility model discloses a portable welding jig of five degrees of freedom, including walking mobile unit, five degrees of freedom mobile unit, the welding jig head, drive arrangement and control box, five degrees of freedom mobile unit are located on the walking mobile unit, five degrees of freedom mobile unit include the lifing beam, sliding connection has the lift slide on the lifing beam, the first crossbeam of lift slide side fixedly connected with, sliding connection has first slider on the first crossbeam, the lower part fixedly connected with second crossbeam of first slider, sliding connection has the second slider on the second crossbeam, second slider lower part is rotated and is connected with the rotation axis, it is connected with the swing arm to rotate on the rotation axis, it has the welding jig head to articulate on the swing arm. The utility model discloses a portable welding jig of five degrees of freedom simple structure, convenient operation, improved welding jig's factor of safety and accelerated the welding process, not only realize pressing from both sides tight fixed to the work piece in welding process, can also carry out automatic handling to the work piece.

Description

A five-degree-of-freedom mobile welding fixture

Technical field:

The utility model relates to the technical field of welding machinery and equipment, in particular to a five-degree-of-freedom movable welding fixture.

Background technique:

Welding fixtures are essential technological equipment in the large-scale welding production process, which can ensure the relative position of welding, and play a non-negligible role in improving labor productivity, reducing labor production intensity, and improving quality accuracy. At present, according to the classification of power source, it can be mainly divided into pneumatic clamps, electric clamps and hybrid clamps. At present, the existing fixtures can only fix the weldment, but cannot flip and move the weldment. It can only be flipped manually and carried by other handling equipment. If the worker does not pay attention, the temperature of the welding point may be too high. The high overturn is hurt, and the existing clamps do not have protective plates, which can easily cause workers to be injured when welding, and the existing clamps do not have scale plates, so when the clamps break down, they cannot be corrected in time.

Patent No. "CN201510935152.5" discloses a welding fixture for an automobile water tank, including a welding fixture. The welding fixture includes a workbench, a fixed plate, a sliding plate, a support plate and a hydraulic device. A fixed plate is installed on the upper end of the workbench. The fixed plate There is a scale plate, the top of the fixed plate is provided with the first slide rail, the first slide rail is five groups, the fixed plate is connected with the sliding plate through five sets of the first slide rail, the sliding plate is two groups, and the two sets of sliding plates are equipped with The second sliding rail, two groups of sliding plates are connected with the slider through two groups of second sliding rails, a rotating rod is installed at one end of the sliding block, the supporting plate is provided with a third sliding rail, and the supporting plate is connected with the rotating rod through the third sliding rail. The automobile water tank welding fixture can only turn over the workpiece, and cannot carry the workpiece.

Utility model content:

The purpose of this utility model is to provide a five-degree-of-freedom mobile welding fixture to solve the problems raised in the above-mentioned background technology. The utility model has simple structure, convenient operation, and improves the safety factor of the welding fixture. And speed up the welding process. During the welding process, not only the clamping and fixing of the workpiece can be realized, but also the automatic handling of the workpiece can be realized.

The technical solutions of the present utility model are as follows:

A five-degree-of-freedom mobile welding fixture, including a walking mobile unit, a five-degree-of-freedom mobile unit, a welding fixture head, a driving device, and a control box. The mobile unit is connected, and the control box is electrically connected with the driving device to control the walking and movement of the walking mobile unit and the five-degree-of-freedom mobile unit. The lifting and sliding of the seat and the lifting beam is completed through the lifting gear and rack pair. The side of the lifting slide seat is fixedly connected with the first beam, and the first beam is slidably connected with the first slider. The sliding is accomplished through the first rack and pinion pair. The lower part of the first slider is fixedly connected with the second beam, and the second beam is slidably connected with the second slider. The second beam and the second slider The shifting and sliding is accomplished by the second rack and pinion pair. The lower part of the second slide block is rotatably connected with a rotating shaft, and the rotating shaft is rotatably connected with a swing arm, which is articulated with a welding fixture head.

As a preference of the above technical solution, the control box includes a PLC controller, an input interface and a confirmation button, the input interface can set dynamic parameters, the PLC controller receives the dynamic parameters input via the input interface, and controls the walking movement according to the set value of the dynamic parameters Walking and moving of the unit and the five-degree-of-freedom mobile unit, the confirmation button is used to confirm and modify the input dynamic parameters.

As a preferred technical solution, the walking mobile unit includes a support plate, a rotating seat and a walking track. The support plate is a square plate-shaped structure made of steel plates. Each set of traveling wheels includes two side-by-side traveling wheels, which are connected via transmission shafts. The traveling track is an inverted T-shaped track. The rotating seat is fixed on the support plate, and the rotating seat can rotate around its own axis driven by the rotating drive device.

As a preference of the above-mentioned technical solution, the walking wheel includes a wheel body and an elastic body nested on the outer circumference of the wheel body. A groove matching the elastic body is provided on the outer circumference of the wheel body, and the elastic body is fixed on the walking surface through the groove. Outside the wheel, the cross section of the elastic body is circular, square or trapezoidal, and the elastic body is one of rubber, plastic or glass.

As an optimization of the above technical solution, the welding jig head connected with the five-degree-of-freedom moving unit can realize movement and rotation in five directions and angles, so as to improve the adaptability of the welding jig head.

As a preferred technical solution, the welding jig head includes a welding jig head body and jaws, the welding jig head body includes a column, the column is a cylindrical structure, and four hinged lugs are evenly distributed on the upper circumference of the column. A pin hole is opened on the plate, and a positioning disc is connected to the lower part of the column. The positioning disc is provided with a gap for accommodating the jaw part. The gap corresponds to the position of the hinged ear plate. The airtight connection has a vacuum suction cup.

As a preference of the above technical solution, the jaw part includes an opening and closing drive mechanism and jaws, one jaw is paired with an opening and closing drive mechanism, the opening and closing drive mechanism is a telescopic cylinder, and one end of the telescopic cylinder is hinged to the hinged ear plate through a pin shaft, The other end is hinged with the connecting ear plate on the upper end of the jaw.

The beneficial effects of the utility model are: the five-degree-of-freedom mobile welding fixture of the utility model has a simple structure, is convenient to operate, improves the safety factor of the welding fixture and accelerates the welding process, and not only realizes clamping and fixing of the workpiece during the welding process, It can also carry out automatic handling of workpieces.

Description of drawings:

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural representation of walking mobile unit;

Fig. 3 is the structural representation of welding jig head;

Fig. 4 is a structural schematic diagram of the welding fixture head body.

detailed description:

In order to make the above purpose, features and advantages of the utility model more obvious and easy to understand, the specific implementation of the utility model will be described in detail below in conjunction with the accompanying drawings.

As shown in Figure 1, the five-degree-of-freedom mobile welding fixture includes a walking mobile unit, a five-degree-of-freedom mobile unit, a welding fixture head 3, a driving device, and a control box 4. The five-degree-of-freedom mobile unit is located on the walking mobile unit, and the welding fixture The head 3 is connected to the five-degree-of-freedom mobile unit, and the control box is electrically connected to the driving device to control the walking and movement of the walking mobile unit and the five-degree-of-freedom mobile unit. The five-degree-of-freedom mobile unit includes a lifting beam 21, which slides on the lifting beam 21 Connected with lifting sliding seat 22, the lifting and sliding of lifting sliding seat 22 and lifting beam 21 is completed by lifting rack and pinion pairs. A slide block 23, the first crossbeam 26 and the first slide block 23 traverse and slide through the first traverse rack and pinion pair, the bottom of the first slide block 23 is fixedly connected with the second crossbeam 27, and the second crossbeam 27 is slidably connected with a second slide block 24, and the lateral movement and sliding of the second beam 27 and the second slide block 24 is completed by the second traverse rack and pinion pair, and the second slide block 24 is connected with a rotating shaft in rotation, A swing arm 25 is rotatably connected to the rotating shaft, and a welding jig head 3 is hinged on the swing arm 25 .

The control box 4 includes a PLC controller, an input interface and a confirmation button. The input interface can set dynamic parameters. The PLC controller receives the dynamic parameters input through the input interface, and controls the walking mobile unit and the five-degree-of-freedom movement according to the set values of the dynamic parameters. The walking and moving of the unit, the confirmation button is used to confirm and modify the input dynamic parameters.

As shown in Figures 1 and 2, the walking mobile unit includes a support plate 14, a rotating seat 15 and a walking track 11. The support plate 14 is a square plate-shaped structure made of steel plates. The four corners of the support plate 14 are connected by a support 13. There are four groups of traveling wheels 12, each group of traveling wheels 12 includes two side-by-side traveling wheels 12, the two side-by-side traveling wheels 12 are connected via transmission shafts, the traveling track is an inverted T-shaped track, and the two traveling wheels 12 of each group The traveling wheels ride on the two cross braces of the inverted T-shaped track, and the swivel seat 15 is fixed on the support plate 14, and the swivel seat 15 can rotate around its own axis under the drive of the rotary drive device.

The walking wheel 12 comprises a wheel body and an elastic body nested on the outer circumference of the wheel body. The outer circumference of the wheel body is provided with grooves matched with the elastic body, and the elastic body is fixed on the outside of the walking wheel through the groove. The cross section is circular, square or trapezoidal, and the elastic body is one of rubber, plastic or glass.

The welding jig head 3 connected with the five-degree-of-freedom moving unit can realize movement and rotation in five directions and angles, so as to improve the adaptability of the welding jig head 3 .

As shown in Figure 3-4, the welding jig head 3 includes a welding jig head body and jaws. The welding jig head body includes a column 31. The column 31 is a cylindrical structure. There are four hinges evenly distributed on the upper circumference of the column 31. Ear plate 311, the hinged ear plate 311 is provided with a pin hole, the bottom of the column 31 is connected with a positioning disc 32, the positioning disc 32 is provided with a gap 321 for accommodating the jaw portion, the position of the gap 321 is the same as that of the hinged ear plate 311 In one correspondence, a vacuum pump 34 is arranged on the lower part of the positioning disk 32, and a vacuum suction cup 35 is sealingly connected to the lower part of the vacuum pump 34.

The jaws part includes an opening and closing drive mechanism 334 and jaws 33. One clamping jaw 33 is paired with an opening and closing drive mechanism 334. The opening and closing drive mechanism 334 is a telescopic cylinder. One end is hinged to the connecting lug 331 on the upper end of the jaw 33 .

The embodiments are used to illustrate the utility model, but not to limit the utility model. Any person skilled in the art can modify the embodiments without violating the spirit and scope of the utility model, so the protection scope of the utility model should be as listed in the claims of the utility model.

Claims (7)

1. a five degree of freedom movable welding welding fixture, it is characterised in that: include that walking mobile unit, five degree of freedom move list Unit, weld jig head (3), driving means and control cabinet (4), five degree of freedom mobile unit is positioned on walking mobile unit, Weld jig head (3) is connected with five degree of freedom mobile unit, and control cabinet electrically connects with driving means, controls walking with this mobile single The walking of unit and five degree of freedom mobile unit and movement, five degree of freedom mobile unit includes lift beam (21), on lift beam (21) Slidably connecting lift slide (22), lift slide (22) is by lifting tooth rack-and-pinion with the lifting carriage of lift beam (21) Completing, lift slide (22) side is fixedly connected with first crossbeam (26), first crossbeam (26) slidably connects first sliding Block (23), first crossbeam (26) is completed by the first traversing rack-and-pinion with the traversing slip of the first slide block (23), the The bottom of one slide block (23) is fixedly connected with second cross beam (27), and second cross beam (27) slidably connects the second slide block (24), Second cross beam (27) is completed by the second traversing rack-and-pinion with the traversing slip of the second slide block (24), the second slide block (24) lower rotational is connected with rotary shaft, and rotary shaft is rotatably connected to swing arm (25), and swing arm is hinged with welding on (25) Clamp head (3).

2. a kind of five degree of freedom movable welding welding fixture according to claim 1, it is characterised in that: control cabinet (4) includes PLC, inputting interface and ACK button, inputting interface can carry out dynamic parameter setting, and PLC receives via defeated Enter the dynamic parameter of interface input, the set value calculation walking mobile unit according to dynamic parameter and five degree of freedom mobile unit Walking and mobile, ACK button is for carrying out confirming and changing to the dynamic parameter of input.

3. a kind of five degree of freedom movable welding welding fixture according to claim 1, it is characterised in that: walking mobile unit bag Including gripper shoe (14), rotating seat (15) and walking track (11), gripper shoe (14) is square platy structure, and it is by steel plate system Becoming, the corner, bottom of gripper shoe (14) is connected with four groups of road wheels (12) by bearing (13), often organizes road wheel (12) and all includes Two road wheels (12) side by side, two road wheels (12) side by side connect via power transmission shaft, and walking track is inverted T shape track, Two road wheels often organizing road wheel (12) ride in two stulls of inverted T shape track, and rotating seat (15) is fixed on gripper shoe (14), on, rotating seat (15) can rotate around own axes under the driving of rotating driving device.

4. a kind of five degree of freedom movable welding welding fixture according to claim 3, it is characterised in that: road wheel (12) includes Wheel body and the elastomer being nested in wheel body outer circumference, the outer circumference of wheel body offers recessed with what elastomer row mated Groove, elastomer is fixed on outside road wheel by groove, and the cross section of elastomer is circular, square or trapezoidal, and elastomer is rubber One in glue, plastic cement or glass.

5. a kind of five degree of freedom movable welding welding fixture according to claim 1, it is characterised in that: move with five degree of freedom The weld jig head (3) that unit connects can realize movement and the rotation of five directions and angle.

6. a kind of five degree of freedom movable welding welding fixture according to claim 1, it is characterised in that: weld jig head (3) Including weld jig head body and gripping portions, weld jig head body includes column (31), and column (31) is cylindrical-shaped structure, Being evenly distributed with four hinged otic placodes (311) on the top circumferencial direction of column (31), hinged otic placode offers bearing pin on (311) Hole, column (31) bottom is connected with positioning disc (32), and positioning disc (32) is provided with the breach accommodating gripping portions (321), the position one_to_one corresponding of breach (321) and hinged otic placode (311), positioning disc (32) bottom is provided with vavuum pump (34), vavuum pump (34) lower seal is connected with vacuum cup (35).

7. a kind of five degree of freedom movable welding welding fixture according to claim 6, it is characterised in that: gripping portions includes opening Closing drive mechanism (334) and jaw (33), jaw (33) pairing arranges an opening and closing drive mechanism (334), and opening and closing drive Mechanism (334) is telescopic cylinder, and telescopic cylinder one end is hinged with hinged otic placode (311) by bearing pin, the other end and jaw (33) The connection otic placode (331) of upper end is hinged.