CN210789787U

CN210789787U - Automatic tool clamp for welding

Info

Publication number: CN210789787U
Application number: CN201921157798.5U
Authority: CN
Inventors: 冯晓晖; 孟昳萍
Original assignee: Xi'an Lihui Automation Equipment Co ltd
Current assignee: Xi'an Lihui Automation Equipment Co ltd
Priority date: 2019-07-23
Filing date: 2019-07-23
Publication date: 2020-06-19
Anticipated expiration: 2029-07-23

Abstract

The utility model provides an automatic frock clamp for welding, including the frame, the frame lateral part is equipped with servo motor, servo motor is connected with the rotating gear group, be equipped with the anchor clamps body on the frame workstation, the anchor clamps body includes anchor clamps body basis flat board and anchor clamps body riser, install part positioning mechanism and rack and pinion drive mechanism on the anchor clamps body basis flat board; a pneumatic clamping mechanism is arranged on the vertical plate of the clamp body; the pneumatic clamping mechanism is used for driving the clamping part by the air cylinder, each independent part forming the part can be accurately positioned on the tool by the automatic tool clamp, the part is clamped by the air cylinder clamp mechanism, the angle position of the tool is driven and changed by the servo motor, and the robot drives the welding gun to comprehensively weld the welding seam of the part. The tool is high in automation degree, the physical strength of an operator is greatly saved, and the production efficiency is multiplied.

Description

Automatic tool clamp for welding

Technical Field

The utility model relates to the field of welding technique, in particular to automatic frock clamp is used in welding.

Background

In the fields of automobile parts, high-speed rails, aerospace and the like, a plurality of parts are formed by assembling and welding a plurality of independent parts, the welding forming parts are required to have high enough precision, the parts with high precision requirements are subjected to robot welding operation gradually at present, the track of a robot driving a welding gun to walk is ensured by a program, the track of the robot walking at each time is the same, the welding seams of the parts are required to be consistent at each time, the precision requirements cannot be met by adopting a manual tool clamp, the labor productivity cannot be improved, the automatic tool clamp with high automation degree is a trend of welding production operation, the automatic clamp can ensure the accurate positioning of each part, and the cylinder clamping mechanism can realize the easy clamping of workpieces. Therefore, it is necessary to provide an automatic tool for welding to solve the above problems.

Disclosure of Invention

An object of the utility model is to provide an automatic frock clamp is used in welding 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: an automatic tool clamp for welding comprises a rack, wherein a servo motor is arranged on the side of the rack, the servo motor is connected with a rotating gear set, a clamp body is arranged on a workbench of the rack, the clamp body comprises a clamp body base flat plate and a clamp body vertical plate perpendicular to the clamp body base flat plate, and a part positioning mechanism and a gear rack transmission mechanism are arranged on the clamp body base flat plate; the part positioning mechanism comprises a positioning pin and a positioning roller; the gear rack transmission mechanism is used for ejecting the part out of the fixture body; a pneumatic clamping mechanism is arranged on the vertical plate of the clamp body; the pneumatic clamping mechanism comprises a foundation support, an air cylinder mounting plate, a hinge plate, a pin shaft and a pressing plate, wherein the air cylinder mounting plate is mounted on the foundation support, the air cylinder is mounted on one side of the air cylinder mounting plate through the pin shaft, the hinge plate and the pressing plate are mounted on the other side of the air cylinder mounting plate through the pin shaft, and the pneumatic clamping mechanism is used for driving parts to be clamped through the air cylinder.

The rotary gear set comprises a pinion, a gearwheel and a detection switch, the pinion drives the gearwheel to move, and the gearwheel is provided with the detection switch.

The gear rack transmission mechanism comprises a rack and a gear, the rack drives the gear to rotate, and the rack is driven by the cylinder.

The fixture body is characterized in that a part positioning groove is further formed in the base flat plate.

The utility model discloses this frock clamp adopts cylinder driving clamp mechanism action clamping workpiece, and the component part of work piece can both the accurate positioning on the frock, and the pressure of the big or small accessible adjusting cylinder of clamp force is adjusted, and every part of component work piece adopts accurate positioning mechanism to pinpoint, and after the location, anchor clamps press from both sides tightly every part again, and 6 degrees of freedom of restriction part weld the part at last, and after the welding finishes, pneumatic fixture loosens, takes out the work piece, and the work piece forms a whole part.

Drawings

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

FIG. 2 is a schematic view of a rotary gear set;

fig. 3 is a schematic structural view of the pneumatic clamping mechanism.

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.

As shown in fig. 1 to 3, the utility model relates to an automatic tool clamp for welding, including frame 1, the side of frame 1 is equipped with servo motor 2, servo motor is connected with rotatory gear train 3, be equipped with the anchor clamps body on the frame workstation, the anchor clamps body includes anchor clamps body basis flat board 4 and anchor clamps body riser 5 perpendicular with anchor clamps body basis flat board, install part positioning mechanism 6 and rack and pinion drive mechanism 7 on the anchor clamps body basis flat board; the part positioning mechanism comprises a positioning pin and a positioning roller; the gear rack transmission mechanism 7 is used for ejecting the part out of the fixture body; a pneumatic clamping mechanism 8 is arranged on the vertical plate of the clamp body; pneumatic clamping mechanism includes basic support 10, cylinder 11, cylinder mounting panel 12, flap 13, round pin axle 14, clamp plate 15, install the cylinder mounting panel on the basic support, install the cylinder through the round pin axle on cylinder mounting panel one side, the flap and clamp plate are installed through the round pin axle to the opposite side, pneumatic clamping mechanism is by cylinder drive clamping part.

The rotary gear set comprises a pinion 16, a gearwheel 17 and a detection switch 18, the pinion drives the gearwheel to move, and the gearwheel is provided with the detection switch.

The fixture body is also provided with a part positioning groove 9 on the basic flat plate 4.

The part positioning mechanism limits the degree of freedom of the part by utilizing holes, edges and surfaces on the workpiece and adopting positioning pins and positioning rollers, so that the position of the part relative to the tool clamp is consistent and accurate, and the positioning pins are driven by cylinders to insert and extract the holes of the workpiece.

The automatic tool clamp can accurately position each independent part forming the part on the tool, the cylinder clamp mechanism is adopted to clamp the part, the servo motor is adopted to drive and change the angle position of the tool, and a robot drives a welding gun to comprehensively weld the welding seam of the part. When the workpiece is welded, the angle position of the workpiece is changed, the robot drives the welding gun to weld the welding line of the part, the fixture adopts the servo motor to drive the tool to shift, and the servo motor can accurately change the position of the tool so as to ensure that the welding position of the robot is consistent every time.

This frock adopts proximity switch to detect the originated and terminal position of frock, and when the switch triggered, the position that upper control system can judge the frock was located to the robot correctly welds. After the welding of the parts is finished, the parts are difficult to take out of the fixture under the action of welding stress, the parts are ejected out of the fixture body by the aid of the gear and rack transmission mechanism, the rack is pulled by the air cylinder, the rack drives the gear to rotate, the rotating motion of the gear is transmitted to the gear of the ejection mechanism through the shaft system, the gear of the ejection mechanism converts the rotating motion into linear motion of the two groups of ejection racks, the two groups of ejection racks synchronously move, and the workpieces are stably ejected out of the fixture body.

Claims

1. An automatic tool clamp for welding comprises a rack and a rack workbench, and is characterized in that a servo motor is arranged on the side of the rack and connected with a rotating gear set, a clamp body is arranged on the rack workbench and comprises a clamp body base flat plate and a clamp body vertical plate perpendicular to the clamp body base flat plate, and a part positioning mechanism and a gear rack transmission mechanism are arranged on the clamp body base flat plate; the part positioning mechanism comprises a positioning pin and a positioning roller; the gear rack transmission mechanism is used for ejecting the part out of the fixture body; a pneumatic clamping mechanism is arranged on the vertical plate of the clamp body; the pneumatic clamping mechanism comprises a foundation support, an air cylinder mounting plate, a hinge plate, a pin shaft and a pressing plate, wherein the air cylinder mounting plate is mounted on the foundation support, the air cylinder is mounted on one side of the air cylinder mounting plate through the pin shaft, the hinge plate and the pressing plate are mounted on the other side of the air cylinder mounting plate through the pin shaft, and the pneumatic clamping mechanism is used for driving parts to be clamped through the air cylinder.

2. The automatic tool clamp for welding according to claim 1, wherein the rotating gear set comprises a pinion, a gearwheel and a detection switch, the pinion drives the gearwheel to move, and the gearwheel is provided with the detection switch.

3. The automatic tool clamp for welding according to claim 1, wherein the rack-and-pinion transmission mechanism comprises a rack and a pinion, the rack drives the pinion to rotate, and the rack is driven by a cylinder.

4. The automatic tool clamp for welding according to claim 1, wherein a part positioning groove is further formed in the clamp body base flat plate.