CN111774798A - Multi-station positioning device for fixed welding - Google Patents

Abstract

The invention provides a multi-station positioning device for fixed welding, which belongs to the field of fixed welding fixtures and comprises a rotatable rotating circular truncated cone, a fixed circular truncated cone, a plurality of supporting mechanisms and a plurality of fixtures; the fixed round platform is arranged below the rotating round platform; one end of the supporting mechanism is fixed at the edge of the rotary round table, the other end of the supporting mechanism is positioned above the fixed round table, and the clamp is movably connected to the supporting mechanism; the device also comprises a first lifting mechanism for lifting one end of the clamp and a second lifting mechanism for lifting the other end of the clamp; the first lifting mechanism is fixed in the middle of the rotary round table, and the second lifting mechanism is fixed outside the outer edge of the fixed round table; carry out swing joint with supporting mechanism and anchor clamps, and first lifting mechanism and second lifting mechanism are mobilizable carry out certain lifting with anchor clamps for can be nimble when processing the product treat the processing article and process, realize the diversification of means of processing.

Description

Multi-station positioning device for fixed welding

Technical Field

The invention relates to the field of fixed welding fixtures, in particular to a multi-station positioning device for fixed welding.

Background

Along with the rapid development of automation technology, more and more automatic production lines are applied to industrial production, the traditional automobile part welding generally adopts a manual operation mode, a worker manually carries a plate to be welded to a welding machine for welding operation, the labor intensity is high, the manual operation is difficult to keep the continuous production state of equipment, the production efficiency is low, and the welding quality cannot be guaranteed. Some special car plates, like car front wall board, because its shape is comparatively special, can't weld through simple manual mode, need accomplish the location of plate with the help of specific positioning fixture.

Chinese patent publication No. CN110900934A discloses a robot full-automatic pouring automobile cushion turntable foaming production line, which is different in that: the device comprises a multi-station rotary table, a manipulator and a high-pressure foaming machine; the multi-station rotary table comprises a base platform and a mould frame, wherein the base platform can continuously rotate around the center of the base platform in a horizontal plane, the mould frame is used for fixing a mould, the mould frame is provided with a plurality of mould frames, the mould frames are uniformly distributed at the upper end of the outer ring of the base platform, the outer side of the base platform is sequentially divided into a taking and placing area, a mould cleaning operation area, a mould release agent spraying area, a steel wire framework placing area, a pouring area and a curing area, and the base platform can be rotated to enable each mould frame to respectively flow through; the manipulator is arranged in the pouring area and can automatically track the mould in the pouring area and pour the foaming raw material; the high-pressure foaming machine provides foaming raw materials for the mechanical arm. Although the invention adopts the multi-station working mode, the composition structure is fixed and single, only one type of processed product can be operated, and only the processed product can be fixed on the device and cannot move, so that the invention has limitation on processing of the processed product and makes the processed product used singly and inflexible.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to solve the technical problem of providing a multi-station positioning device for fixed welding, wherein a supporting mechanism is movably connected with a clamp, and a first lifting mechanism and a second lifting mechanism can movably lift the clamp to a certain extent, so that a product to be processed can be flexibly processed when a product is processed, and the diversification of processing means is realized.

In order to achieve the purpose, the invention adopts the following technical scheme:

the invention provides a multi-station positioning device for fixed welding, which is characterized by comprising: the device comprises a rotatable rotary round table, a fixed round table, a plurality of supporting mechanisms and a plurality of clamps; the fixed round platform is arranged below the rotating round platform; one end of the supporting mechanism is fixed at the edge of the rotary round table, the other end of the supporting mechanism is positioned above the fixed round table, and the clamp is movably connected to the supporting mechanism; the rotary round table drives the supporting mechanism and the clamp to rotate on the fixed round table when rotating; the device also comprises a first lifting mechanism for lifting one end of the clamp and a second lifting mechanism for lifting the other end of the clamp; the first lifting mechanism is fixed in the middle of the rotary round table, and the second lifting mechanism is fixed outside the outer edge of the fixed round table.

Preferably, one end of the clamp is provided with a front contact arm matched with the first lifting mechanism, and the other end of the clamp is provided with a rear contact arm matched with the second lifting mechanism;

the first lifting mechanism is arranged right below the front contact arm, and the second lifting mechanism is arranged right below the rear contact arm;

the first lifting mechanism and the second lifting mechanism work cooperatively to lift or lower the fixture through the front contact arm and the rear contact arm.

Preferably, the fixture is provided with a plurality of connecting columns, the supporting mechanism is provided with a plurality of supporting columns corresponding to the connecting columns, and the fixture and the supporting mechanism are movably connected through the connecting columns and the supporting columns in a mutually matched mode.

Preferably, the clamp is provided with a fixing plate surface, and the fixing plate surface is provided with a clamping device and a positioning pin which are used for fixing the workpiece to be machined.

Preferably, the supporting mechanism is provided with a first connecting piece and a second connecting piece, the supporting mechanism is connected with the first lifting mechanism through the first connecting piece, and the supporting mechanism is connected with the second lifting mechanism through the second connecting piece.

Preferably, the clamping device is a clamping cylinder.

Preferably, the first lifting mechanism is further provided with a movable air bar, and the movable air bar is movably connected with the clamp.

The invention has the beneficial effects that:

the invention provides a multi-station positioning device for fixed welding, which comprises a plurality of groups of stations and a plurality of groups of lifting devices, wherein the stations rotate through a rotary round table and sequentially rotate to different lifting devices, the fixture is used for fixing a workpiece to be machined, the supporting mechanism is used for supporting and fixing the fixture, the lifting devices lift and put down the fixture, the fixture is matched with a corresponding robot or a corresponding mechanical arm, the fixture is arranged on the supporting mechanism through the robot or the mechanical arm, then the workpiece to be machined is fixed with the fixture, and the automatic machining effect can be realized, and can treat the machined part according to the difference and use different anchor clamps, realize the diversification of processing object, first lifting mechanism and second lifting mechanism are mobilizable carry out certain lifting with anchor clamps for can be nimble when processing the product treat the machined part processing, realize the diversification of processing means.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic diagram of a structure provided in an embodiment of the present invention;

FIG. 2 is a top view of a multi-station positioning apparatus provided in an embodiment of the present invention;

fig. 3 is a schematic structural view of a rotary circular table, a first lifting mechanism and a second lifting mechanism according to an embodiment of the present invention;

FIG. 4 is a schematic view of a clamp configuration provided in an embodiment of the present invention;

fig. 5 is a schematic diagram of a back structure of a clamp according to an embodiment of the present invention.

The attached drawings are as follows: 1, rotating a circular table; 2, fixing the round table; 3, a supporting mechanism; 31 a support column; 4, clamping; 41 a front contact arm; 42 rear contact arms; 43 connecting the disks; 44 connecting column; 45, fixing the board surface; 5 a first lifting mechanism; 6 a second lifting mechanism; 7 lifting the column.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

As shown in fig. 1 to 5, the multi-station positioning device for fixed welding provided in this embodiment includes: the device comprises a rotatable rotary round table 1, a fixed round table 2, a plurality of supporting mechanisms 3 and a plurality of clamps 4; the fixed round platform 2 is arranged below the rotary round platform 1; one end of the supporting mechanism 3 is fixed at the edge of the rotary round table 1, the other end of the supporting mechanism 3 is arranged on the fixed round table 2, and the clamp 4 is movably connected to the supporting mechanism 3; when the rotary round table 1 rotates, the support mechanism 3 and the clamp 4 are driven to rotate on the fixed round table 2. Specifically, the rotary circular truncated cone 1 is a circular table top, the rotary circular truncated cone 1 is powered by a servo motor to rotate, the rotary circular truncated cone 1 rotates for a certain angle according to requirements through parameters such as a preset rotation angle, and a sensor is further arranged in the middle of the rotary circular truncated cone 1 and used for detecting whether the rotary circular truncated cone 1 rotates to a position; the fixed circular truncated cone 2 is arranged below the rotary circular truncated cone 1, the shape of the fixed circular truncated cone is similar to that of the rotary circular truncated cone 1, but the diameter of the fixed circular truncated cone is larger than that of the rotary circular truncated cone 1, the supporting mechanism 3 is of a step structure, one end of the supporting mechanism is fixed on the rotary circular truncated cone 1, the other end of the supporting mechanism is placed on the fixed circular truncated cone 2, one end of the supporting mechanism 3, which is in contact with the fixed circular truncated cone 2, is provided with a plurality of rollers, and; anchor clamps 4 are used for pressing from both sides tight fixed work piece of treating, and the work piece of treating of difference can choose for use different anchor clamps 4 to carry out the tight fixed of clamp of suitability, and all can swing joint in supporting mechanism 3 in anchor clamps 4 of difference, has realized promptly that the work piece of treating of difference is fixed in the effect on supporting mechanism 3.

Preferably, the device further comprises a first lifting mechanism 5 and a second lifting mechanism 6 for lifting the clamp 4; the first lifting mechanism 5 is fixed in the middle of the rotary round table 1, and the second lifting mechanism 6 is fixed outside the edge of the fixed round table 2. Specifically, the rotary round table 1 is of a circular ring structure, so that the first lifting mechanism 5 is arranged in a hollow part in the middle of the rotary round table 1, and the first lifting mechanism 5 is fixed; be equipped with a plurality of first lifting mechanisms 5 and second lifting mechanism 6, and first lifting mechanism 5 pairs in groups with second lifting mechanism 6 one-to-one, be equipped with three groups of first lifting mechanisms 5 and second lifting mechanism 6 in this embodiment, evenly distributed in rotatory round platform 1 with fixed round platform 2 outside, first lifting mechanism 5 and the second lifting mechanism 6 that pair in groups are in on a plane, first lifting mechanism 5 and second lifting mechanism 6 all are equipped with lifting post 7 through the cylinder motion.

Preferably, the clamp 4 is provided with a front contact arm 41 cooperating with the first lifting mechanism 5 and a rear contact arm 42 cooperating with the second lifting mechanism 6; the first lifting mechanism 5 is arranged right below the front contact arm 41, and the second lifting mechanism 6 is arranged right below the rear contact arm 42; the first lifting mechanism 5 works in cooperation with the second lifting mechanism 6 to lift or lower the jig 4 by the front contact arm 41 and the rear contact arm 42. Specifically, the front contact arm 41 and the rear contact of the clamp 4 are structures extending outwards, and extend out of the range of the supporting mechanism 3; the lifting column 7 of the first lifting mechanism 5 is positioned under the front contact arm 41, the lifting column 7 of the second lifting mechanism 6 is positioned under the rear contact arm 42, the lifting column 7 and the contact arm are matched in shape and size, when the lifting column 7 moves upwards through the air cylinder, the lifting column just completely props against the contact arm to drive the contact arm to move upwards, so that the effect of lifting one end of the clamp 4 is realized, the lifting effect can be simultaneously realized on two ends of the clamp 4 through the combined action of the first lifting mechanism 5 and the second lifting mechanism 6, so that the process of lifting the clamp 4 is more stable and balanced, as the clamp 4 is clamped and fixed with a substitute workpiece, the lifting of the clamp 4 lifts the workpiece for a certain distance, so that the workpiece can be better processed by matching with external processing equipment, and when the workpiece is processed, the lifting columns 7 of the first lifting mechanism 5 and the second lifting mechanism 6 move downwards, the gripper 4 is replaced on the support means 3.

Preferably, the fixture 4 is provided with a plurality of connecting columns 44, the supporting mechanism 3 is provided with a plurality of supporting columns 31, and the fixture 4 and the supporting mechanism 3 are movably connected through the mutual matching of the connecting columns 44 and the supporting columns 31. Specifically, the supporting mechanism 3 is provided with four supporting columns 31, the middle parts of the two supporting columns 31 are provided with positioning pins, the middle parts of the two supporting parts are provided with positioning holes, the bottom of the clamp 4 is provided with four connecting columns 44 in corresponding positions, the connecting columns 44 are provided with the positioning holes and the positioning pins matched with the supporting columns 31, the connecting columns 44 are matched and connected with the supporting columns 31, and the clamp 4 is movably connected with the supporting mechanism 3.

Preferably, the fixture 4 is provided with a fixing plate 45, and the fixing plate 45 is provided with a fixture 4 device and a positioning pin for fixing to-be-processed workpieces. Specifically, the fixture 4 comprises a fixing plate surface 45 inclined at a certain angle, the fixing plate surface 45 is used for fixing a workpiece to be machined, the fixing plate surface 45 is provided with a plurality of clamping devices and positioning pins, the clamping devices can be clamping cylinders, when the workpiece to be machined is placed on the fixing plate surface 45, the fixture 4 cylinders clamp the workpiece to be machined, and the positioning pins are used for positioning and fixing through positioning holes of the workpiece to be machined; and anchor clamps 4 still are equipped with connecting disc 43, and connecting disc 43 is used for being connected fixedly with the arm, and the arm cooperates fixedly with connecting disc 43 of anchor clamps 4 to realize snatching anchor clamps 4, is convenient for assemble and shift anchor clamps 4 through the arm.

Preferably, the supporting mechanism 3 is provided with a first connecting piece and a second connecting piece, the supporting mechanism 3 is connected with the first lifting mechanism 5 through the first connecting piece, and the supporting mechanism 3 is connected with the second lifting mechanism 6 through the second connecting piece. Specifically, the first lifting mechanism 5 and the second lifting mechanism 6 are arranged on clamping cylinders matched with the first connecting piece and the second connecting piece, when the supporting mechanism 3 rotates to the middle position between the first lifting mechanism 5 and the second lifting mechanism 6, the first connecting piece and the second connecting piece just reach the corresponding clamping cylinders, and the first lifting mechanism 5 and the second lifting mechanism 6 clamp and fix the first connecting piece and the second connecting piece through the clamping cylinders, so that the effect of fixing the supporting mechanism 3 in the middle of the first lifting mechanism 5 and the second lifting mechanism 6 is achieved; when the supporting mechanism 3 needs to be moved again after the processing is finished, the clamping cylinders of the first lifting mechanism 5 and the second lifting mechanism 6 loosen the first connecting piece and the second connecting piece, so that the supporting mechanism 3 can rotate again.

Preferably, the first lifting mechanism 5 is further provided with a movable air bar, and the movable air bar is in butt joint and movable connection with the clamp 4. Specifically, the gas row that is equipped with the correspondence above 4 tops of anchor clamps and first lifting mechanism 5, when anchor clamps 4 were placed on supporting mechanism 3, the gas row on the first lifting mechanism 5 was released through the cylinder to dock with the gas row of anchor clamps 4 top, realize letting in gaseous effect for the die clamping cylinder on the anchor clamps 4.

Specifically, the first lifting mechanism 5, the second lifting mechanism 6, the supporting mechanism 3 and the clamp 4 are in a group of matched operation, wherein the supporting mechanism 3 and the clamp 4 form a group of stations, in the embodiment, the three groups of stations are provided, the clamp 4 is used for fixing a workpiece to be processed, the supporting mechanism 3 is used for supporting and fixing the clamp 4, the supporting mechanism 3 and the clamp 4 can rotate along with the rotary circular table 1, the first lifting mechanism 5 and the second lifting mechanism 6 are fixed and fixed, the first lifting mechanism 5 and the second lifting mechanism 6 are used for lifting up and putting down the clamp 4, and the clamp 4 rotates along with the supporting mechanism 3 and the rotary circular table 1, so that the clamp 4 and the supporting mechanism 3 are in butt joint with the first lifting mechanism 5 through an air exhaust after rotation, and therefore, an air cylinder in the clamp 4 can be connected with air, and air is provided for the air cylinder on the clamp 4 to.

When in specific use: firstly, the fixture 4 is placed on the supporting mechanism 3, then a workpiece to be processed is placed in the fixture 4 to be clamped and fixed, then the rotary circular table 1 drives the workpiece to be processed to rotate to a welding position, the workpiece to be processed is fixedly placed and rotated with the first lifting mechanism 5 and the second lifting mechanism 6 through the connecting piece, then the first lifting mechanism 5 and the second lifting mechanism 6 lift the fixture 4 by a certain height, the workpiece to be processed is welded and processed through the outside, after the processing is completed, the fixture 4 is placed down by the first lifting mechanism 5 and the second lifting mechanism 6, the rotary circular table 1 rotates the supporting mechanism 3 to the next position to be processed, after the processing is completed, the workpiece to be processed can be taken down, the whole process is convenient to clamp and fix the workpiece to facilitate fixed welding, instability of manual fixed welding is greatly reduced, and welding precision and difficulty are improved.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (7)

1. A multistation positioner for fixed welding characterized in that includes: the rotary circular table comprises a rotary circular table (1), a fixed circular table (2), a plurality of supporting mechanisms (3) and a plurality of clamps (4) which can rotate;

the fixed round table (2) is arranged below the rotary round table (1);

one end of the supporting mechanism (3) is fixed at the edge of the rotating round table (1), the other end of the supporting mechanism (3) is positioned above the fixed round table (2), and the clamp (4) is movably connected to the supporting mechanism (3);

the rotary round table (1) drives the supporting mechanism (3) and the clamp (4) to rotate on the fixed round table (2) when rotating;

the device also comprises a first lifting mechanism (5) for lifting one end of the clamp (4) and a second lifting mechanism (6) for lifting the other end of the clamp (4);

the first lifting mechanism (5) is fixed in the middle of the rotary circular table (1), and the second lifting mechanism (6) is fixed outside the outer edge of the fixed circular table (2).

2. A multi-station positioning apparatus for tack welding according to claim 3, wherein:

a front contact arm (41) matched with the first lifting mechanism (5) is arranged at one end of the clamp (4), and a rear contact arm (42) matched with the second lifting mechanism (6) is arranged at the other end of the clamp (4);

the first lifting mechanism (5) is arranged right below the front contact arm (41), and the second lifting mechanism (6) is arranged right below the rear contact arm (42);

the first lifting mechanism (5) and the second lifting mechanism (6) work cooperatively, and the clamp (4) is lifted or lowered through the front contact arm (41) and the rear contact arm (42).

3. A multi-station positioning apparatus for tack welding according to claim 1, wherein: anchor clamps (4) are equipped with a plurality of spliced poles (44), supporting mechanism (3) be equipped with a plurality of support columns (31) that a plurality of spliced poles (44) correspond, anchor clamps (4) with supporting mechanism (3) pass through spliced pole (44) with support column (31) mutual adaptation carries out swing joint.

4. A multi-station positioning apparatus for tack welding according to claim 1, wherein: the fixture (4) is provided with a fixing plate surface (45), and the fixing plate surface (45) is provided with a clamping device and a positioning pin which are used for fixing a workpiece to be machined.

5. A multi-station positioning apparatus for tack welding according to claim 1, wherein: the supporting mechanism (3) is provided with a first connecting piece and a second connecting piece, the supporting mechanism (3) is connected with the first lifting mechanism (5) through the first connecting piece, and the supporting mechanism (3) is connected with the second lifting mechanism (6) through the second connecting piece.

6. A multi-station positioning apparatus for tack welding according to claim 4, wherein: the clamp device is a clamp cylinder.

7. A multi-station positioning apparatus for tack welding according to claim 1, wherein: the first lifting mechanism is further provided with a movable air bar, and the movable air bar is movably connected with the clamp.

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