CN104923934A - All-side rotation clamp based flexible production workstation for automobile welding production line - Google Patents

Abstract

The invention relates to a flexible production workstation of an automobile welding production line based on a four-sided rotary fixture, including: a welding workbench; a welding robot, characterized in that it also includes: a four-sided rotary fixture; a pre-storage area; and a welding completion area. By using the four-sided rotary fixture in the production workstation, it can meet the flexible welding production requirements of 4-8 vehicle types, and realize the switching of the left and right sides at the same working position. The integration of fixtures saves welding space and improves welding quality compared with traditional single fixtures, making the entire welding production line run efficiently and stably, improving the working environment and reducing the labor intensity of workers.

Description

Flexible production workstation of automobile welding production line based on four-sided rotary fixture

technical field

The invention relates to an automobile welding production line, in particular to a flexible production workstation of an automobile welding production line based on a four-sided rotary fixture.

Background technique

With the vigorous development of my country's economy and the improvement of people's living standards, more and more cars have entered the families of ordinary people. The improvement of people's purchasing power has also stimulated the rapid growth of automobile consumption. In 1999, China's auto market had just over 10 brands. By 2003, more than 50 new models had been launched, and an average of one new model was launched every week. The competition point in the automobile market is more and more concentrated on the upgrading of products.

Faced with such a rapid product update, the production model of a large number of single-vehicle special planes adopted by the automotive industry in the past is no longer suitable for the current development requirements. In order to improve the welding efficiency in automobile welding, higher challenges are put forward for the production line equipment, which requires efficient welding equipment, welding materials, welding methods and automation devices. At present, the domestic automotive welding fixture suppliers mainly focus on a single model or two models, and do not have the ability to switch production between the left and right sides, which not only wastes space, but also requires more labor and equipment costs.

Contents of the invention

The purpose of the present invention is to provide a welding workstation that can be switched among four types of vehicles.

In order to achieve the above object, the technical solution of the present invention is to provide a flexible production workstation for automobile welding production line based on four-sided rotary fixture, including:

The welding workbench is used to provide a work platform for body welding operations;

The welding robot is used for welding the vehicle body on the welding workbench, and is characterized in that it also includes:

The four-sided rotary jig includes four jigs for fixing the body frames of four different models. The four jigs are driven by the drive mechanism to send the body parts on them into the welding workbench in turn through rotary motion, and the four-sided rotary jig rotates each time. Once in place, one of the four clamps interlocks with the welding table;

Pre-storage area, there are four pre-storage areas distributed around each four-sided rotary fixture, each pre-storage area places a car body part to be welded, and each pre-storage area The body parts to be welded are sent to Insert a certain fixture on the corresponding four-sided rotary fixture;

In the welding completion area, the body parts that have been welded on the welding workbench are sent to the welding completion area through the frame slide table 2.

Preferably, the welding workbench is divided into a frame workbench work station position driven by a stepping motor, a workbench middle position and a workbench switching position.

Preferably, four welding robots are respectively arranged on the front and rear sides of the welding workbench, two of the welding robots are arranged on each side; one of the four welding robots is arranged on the left and right sides of the welding workbench respectively Swivel fixture.

Preferably, four pre-storage areas are respectively arranged on the front and rear sides of the four-sided rotary fixture, and two of the pre-storage areas are arranged on each side; one is arranged on the side of the four-sided rotary fixture away from the welding table. The weld completion area.

By using the four-sided rotary fixture in the production workstation, it can meet the flexible welding production requirements of 4-8 vehicle types, and realize the switching of the left and right sides at the same working position. The integration of fixtures saves more welding space than using traditional single fixtures, improves welding quality, makes the entire welding production line run efficiently and stably, improves the working environment, and reduces the labor intensity of workers. In a broad sense, the flexible production line can be said to be a permanent production line. When the production workstation needs to introduce a new model, it only needs to be properly adjusted and modified, that is, the new model can be produced with a small investment and the shortest cycle, making the equipment investment less expensive. Maximize utilization. Therefore, more and more flexible production workstations are valued by automobile manufacturers.

Description of drawings

Figure 1 is a diagram of a four-sided rotary fixture;

Fig. 2 is a structural diagram of the production workstation of the present invention.

Detailed ways

In order to make the present invention more comprehensible, preferred embodiments are described in detail below with accompanying drawings.

With reference to Figures 1 and 2, the present invention provides a flexible production workstation for automobiles that can meet the flexible production requirements for welding of various vehicle types by using four-axis rotary fixtures on the left and right sides of the production workstation. The invention includes a welding station located in the middle of the production station. The welding workbench is divided into the frame workbench workstation position, the middle position of the workbench and the switch position of the workbench, and the three positions are driven by stepping motors. There are four welding robots arranged on both sides of the welding workbench, two on each side. A four-sided rotary fixture is arranged on each side connecting the left and right sides of the welding workbench. The four-sided rotary fixture can switch between 4 types of models, and each four-sided rotary The two sides of the fixture are arranged with car model pre-storage areas according to the needs, and there are four kinds of arrangements at most. The present invention takes the arrangement of four kinds as an example. The four-sided rotary fixtures on the left and right sides are connected with welding completion areas, which are used to place welded workpieces. The pre-storage area is arranged with a frame sliding table, which is driven by a motor.

1) The welding table can be arranged on one side or on both sides according to the requirements of the welding workpiece and fixture.

2) A sensing system is installed in the middle of the welding table.

3) The four types of fixtures of the four-sided rotary fixture are independent systems, which can be interlocked with the welding workbench.

4) The switching of the four types of fixtures of the four-sided rotary fixture is driven by a motor.

5) There is an identification system for the vehicle type at the switching position of the four-vehicle vehicle type fixture of the four-sided rotary fixture.

6) At the position of the welding workbench, when the welding work of a car model is completed, the fixture corresponding to the car model in the four-sided rotary fixture will be slid out, and the four-sided rotary fixture will automatically switch to the fixture of the car model to be produced, and the welding work The table is interlocked.

Firstly, model 1 needs to be welded, and then model 2, model 3, and model 4 need to be welded in turn. The working principle of the production workstation is as follows:

1) Set the order in which the fixtures corresponding to model 1, model 2, model 3, and model 4 in the four-sided rotary fixture slide into the welding workbench. The sequence in this example is model 1, model 2, model 3, and model 4.

2) The fixture corresponding to vehicle model 1 in the four-sided rotary fixture is interlocked with the welding table, and the welding robot starts to weld.

3) After the robot completes the predetermined welding work, the welding workbench returns to the initial position, and the welded workpiece slides to the welding completion area through the frame slide table.

4) The fixture corresponding to vehicle type 1 in the four-sided rotary fixture slides out, and the four-sided rotary fixture automatically switches to the welding fixture corresponding to vehicle type 2.

5) The fixture corresponding to the vehicle type 2 in the four-sided rotary fixture is interlocked with the welding table, and the welding robot starts to weld.

6) After the robot completes the predetermined welding work, the welding workbench returns to the initial position, and the welded workpiece slides to the welding completion area through the frame slide table.

7) The corresponding fixture of vehicle type 2 in the four-sided rotary fixture slides out, and the four-sided rotary fixture automatically switches to the welding fixture corresponding to vehicle model 3.

8) The fixture corresponding to the vehicle type 3 in the four-sided rotary fixture is interlocked with the welding table, and the welding robot starts to weld.

9) After the robot completes the predetermined welding work, the welding workbench returns to the initial position, and the welded workpiece slides to the welding completion area through the frame slide table.

10) The fixture of the vehicle type 3 corresponding to the four-sided rotary fixture slides out, and the four-sided rotary fixture automatically switches to the welding fixture corresponding to the vehicle model 4.

11) The fixture corresponding to the vehicle model 4 in the four-sided rotary fixture is interlocked with the welding table, and the welding robot starts to weld.

12) After the robot completes the predetermined welding work, the welding workbench returns to the initial position, and the welded workpiece slides to the welding completion area through the frame slide table. That is to say, the welding work of the four models of model 1, model 2, model 3 and model 4 has been completed.

Claims (4)

1., based on a flexible production work station for automotive welding production line for four sides rotary jig, comprising:

Welding bench, for providing the workbench of automobile body welding operation;

Welding robot, for carrying out welding effect to the vehicle body on welding bench, is characterized in that, also comprising:

Four sides rotary jig, comprise four fixtures for fixing four kinds of different automobile types body shells, car body component on it is sent into welding bench successively by gyration by four fixtures under the driving of driving mechanism, after four sides rotary jig turns round at every turn and puts in place, one in four fixtures interlocks with welding bench;

Prestore district, four districts that prestore are distributed with in the surrounding of each four sides rotary jig, a kind of car body component to be welded of vehicle is placed in each district that prestores, and the car body component to be welded in each district that prestores is admitted to certain fixture on the rotary jig of corresponding four sides by framework slide unit one;

Welded district, car body component welding bench completing welding is admitted to welding by framework slide unit two and completes district.

2. a kind of flexible production work station for automotive welding production line based on four sides rotary jig as claimed in claim 1, is characterized in that: described welding bench be divided into undertaken driving by stepper motor frame work platform work station position, workbench centre position and workbench switching position.

3. a kind of flexible production work station for automotive welding production line based on four sides rotary jig as claimed in claim 1, it is characterized in that: be furnished with four described welding robots respectively in the both sides, front and back of described welding bench, every side arranges two described welding robots respectively; A described four sides rotary jig is arranged respectively in the left and right sides of described welding bench.

4. a kind of flexible production work station for automotive welding production line based on four sides rotary jig as claimed in claim 1, it is characterized in that: be furnished with four districts that prestore respectively in the both sides, front and back of described four sides rotary jig, every side arranges the district that to prestore described in two respectively; Arrange that in the side away from described welding bench of described four sides rotary jig a described welding completes district.