Windmill type flexible clamp switching device

Abstract

The utility model belongs to the technical field of welding fixtures, and particularly relates to a windmill type flexible fixture switching device which comprises a base, a movable support is connected above the base in a sliding mode, a fixture transposition device is fixedly installed above the movable support, and the fixture transposition device comprises a fixture installation base. The fixture mounting seat is of a multi-surface cylinder structure comprising a plurality of fixture mounting surfaces, each fixture mounting surface is fixedly connected with a group of fixture components, and the fixture mounting seat is driven by power provided by a power driving device. And the working efficiency is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of welding fixtures, and in particular relates to a windmill-type flexible fixture switching device. Background Art

[0002] In recent years, with the popularization of new energy vehicles, the automobile manufacturing industry has developed rapidly, which has also accelerated the technological iteration and model replacement of domestic and foreign automobile manufacturers. In order to make the automobile body-in-white welding production line compatible with future models to the greatest extent possible, reduce manufacturing costs, and shorten the development cycle of new models, various automobile manufacturers have increasingly higher requirements for welding tooling equipment.

[0003] At present, windmill-type flexible positioning fixtures have been widely used in the field of automobile welding white body manufacturing such as passenger cars, commercial vehicles, and construction machinery. The utility model patent with application number 202310196261.4 discloses a flexible switching turntable structure for coupled windmill fixtures of automobile welding lines. When in use, four fixtures are installed on the dividing plate, and the driving device drives the dividing plate to rotate 90 degrees, 180 degrees or 270 degrees to realize the automatic switching function of different fixtures of four models.

[0004] This method can only install 4 fixtures at the same time, and multiple fixtures are installed on the same plane at the same time, which is prone to interference between fixtures and parts. Therefore, the fixtures need to be disassembled and assembled according to actual conditions during the production process, affecting production efficiency. Utility Model Content

[0005] The main technical problem to be solved by the utility model is to provide a device with a simple structure, capable of realizing simultaneous installation and rapid switching of multiple clamps.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A windmill-type flexible clamp switching device includes a base, a mobile bracket is slidably connected above the base, and a clamp switching device is fixedly installed above the mobile bracket. The clamp switching device includes a clamp mounting seat, which is a multi-faceted cylindrical structure including multiple clamp mounting surfaces. Each clamp mounting surface is fixedly connected to a group of clamp components. The clamp mounting seat is powered by a power drive device.

[0008] The following is a further optimization of the above technical solution by the present invention:

[0009] The power drive device includes a deceleration mechanism, the power output end of the deceleration mechanism is transmission-connected to one end of the clamp mounting seat, two support columns are fixedly provided on the upper end of the movable bracket, the deceleration mechanism is fixedly connected to one side support column, and the end of the clamp mounting seat away from the deceleration mechanism is fixedly connected to the other side support column.

[0010] Further optimization: the fixture mounting surface of the fixture mounting seat is arranged perpendicular to the power output end surface of the reduction mechanism.

[0011] Further optimization: A locking mechanism and a mounting plate position sensor are provided on the outer shell of the reduction mechanism.

[0012] Further optimization: A mounting plate is fixedly connected to one end of the fixture mounting seat close to the speed reduction mechanism, and locking holes are provided around the mounting plate at positions corresponding to the fixture mounting surface.

[0013] Further optimization: the power input end of the reduction mechanism is connected to the driving mechanism.

[0014] Further optimization: a mounting seat is provided in the middle of the upper end surface of the base, a bracket driving mechanism is fixedly provided on the mounting seat, the lower end of the support column is fixedly connected to the fixed base, an articulated support is provided on the bottom surface of the fixed base, and the telescopic end of the bracket driving mechanism is connected to the articulated support through a hinge.

[0015] Further optimization: slide rails are provided on both sides of the upper end surface of the base, and two sets of sliders are provided on the bottom surface of the fixed base. The sliders are slidably connected to the corresponding slide rails respectively, and bracket position sensors and limit blocks are provided at both ends of the slide rails on the base.

[0016] Further optimization: the bracket position sensor and the mounting plate position sensor are proximity sensors.

[0017] The utility model adopts the above technical solution, which has the following beneficial effects:

[0018] 1. The fixture mounting seat is a multi-faceted cylinder containing multiple fixture mounting surfaces, and the fixture mounting surface is perpendicular to the output end face of the reduction mechanism. Multiple sets of fixtures can be installed at the same time. In conjunction with the servo drive mechanism, each set of fixtures can be locked in the working position.

[0019] 2. The fixture components are modular in design and can be replaced quickly and easily to reduce the time wasted in changing fixtures during the production process and further improve work efficiency.

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0022] Figure 2 This is a front view of the overall structure of an embodiment of the utility model;

[0023] Figure 3 This is a schematic structural diagram of the fixture transposition device of the utility model;

[0024] Figure 4 This is a schematic diagram of the overall structure of the base of the utility model;

[0025] Figure 5 This is the main view of the overall structure of the mobile bracket of the utility model.

[0026] In the figure: 1-base; 101-slide rail; 102-mounting seat; 103-bracket position sensor; 104-limiting block; 2-movable bracket; 201-fixed base; 202-slider; 203-hinge support; 204-support column; 205-inclined beam; 3-clamp displacement device; 301-driving mechanism; 302-reducing mechanism; 303-locking mechanism; 304-mounting plate; 305-mounting plate position sensor; 306-clamp mounting seat; 307-bearing seat; 4-bracket driving mechanism; 5-clamp assembly. DETAILED DESCRIPTION

[0027] like Figure 1-5 As shown, a windmill-type flexible clamp switching device includes a base 1, a movable bracket 2 and a bracket driving mechanism 4 are installed above the base 1, the telescopic end of the bracket driving mechanism 4 is hinged to the movable bracket 2, a clamp switching device 3 is fixedly installed above the movable bracket 2, and a clamp assembly 5 is fixedly installed on the side of the clamp switching device 3.

[0028] In this embodiment, the clamp replacement device 3 includes a clamp mounting seat 306, one end of the clamp mounting seat 306 is transmission-connected to the power output end of the reduction mechanism 302, the end of the clamp mounting seat 306 close to the reduction mechanism 302 is fixedly connected to the mounting plate 304, and the end of the clamp mounting seat 306 away from the reduction mechanism 302 is installed with a bearing seat 307.

[0029] In this embodiment, the speed reduction mechanism 302 is conventional and will not be described in detail.

[0030] In this embodiment, the fixture mounting seat 306 is a four-sided prism including four fixture mounting surfaces. The fixture mounting surface is perpendicular to the output end face of the speed reduction mechanism 302. Four locking holes are provided around the mounting plate 304 corresponding to the positions of the fixture mounting surfaces. When in use, four sets of fixtures can be installed at the same time, saving the time of disassembling and assembling the fixtures during the operation, and avoiding the problem of interference between the fixtures and parts and between the fixtures.

[0031] In addition to this embodiment, the fixture mounting seat 306 can also be a multi-faceted cylinder including multiple fixture mounting surfaces. Under the premise of ensuring sufficient working space for the robot, multiple sets of fixtures can be installed at the same time to adapt to different working requirements. At this time, multiple locking holes are provided around the mounting plate 304 corresponding to the positions of the fixture mounting surfaces.

[0032] The housing of the speed reduction mechanism 302 is provided with a locking mechanism 303 and a mounting plate position sensor 305 , and the mounting plate position sensor 305 is preferably a proximity sensor.

[0033] In this embodiment, the locking mechanism 303 adopts a pneumatic locking mechanism. When the mounting disk position sensor 305 detects that the mounting disk 304 rotates to the set position, the locking pin of the locking mechanism 303 is pushed out and inserted into the corresponding locking hole on the mounting disk 304 to complete the locking, thereby avoiding shaking of the fixture mounting seat 306 during operation and improving welding accuracy.

[0034] In addition to this embodiment, the locking mechanism 303 may also be an electric locking mechanism or one of other existing locking mechanisms. The locking mechanism 303 cooperates with the corresponding locking hole on the mounting plate 304 to complete the locking.

[0035] The power input end of the speed reduction mechanism 302 is transmission-connected to the driving mechanism 301 .

[0036] In this embodiment, the driving mechanism 301 adopts a servo motor, the mounting end of the servo motor is fixedly mounted on the housing of the reduction mechanism 302 , and the power output end of the servo motor is transmission-connected to the power input end of the reduction mechanism 302 .

[0037] The servo motor outputs rotational power to drive the speed reduction mechanism 302 to work.

[0038] In addition to this embodiment, the driving mechanism 301 may also be a hydraulic servo mechanism or a pneumatic servo mechanism. The driving mechanism 301 is used to drive the speed reduction mechanism 302 to work.

[0039] In this embodiment, the lower end of the base 1 is fixedly connected to the ground, and slide rails 101 are respectively provided on both sides of the upper end. A bracket position sensor 103 and a limit block 104 are respectively provided at both ends of the slide rails 101 on the base 1. A mounting seat 102 is also provided in the middle of the upper end of the base 1, and the bracket driving mechanism 4 is fixedly installed on the mounting seat 102.

[0040] In this embodiment, the lower end of the mobile bracket 2 is a fixed base 201. Two groups of sliders 202 and a hinged support 203 are provided on the bottom surface of the fixed base 201. The position of the slider 202 corresponds to the position of the slide rail 101. The two form a sliding pair, so that the mobile bracket 2 can slide horizontally on the base 1 as a whole to adjust the horizontal position of the clamp assembly 5, thereby adapting to the lateral space requirements of different vehicle models.

[0041] In this embodiment, the bracket driving mechanism 4 adopts a servo electric cylinder, the fixed end of the servo electric cylinder is fixedly mounted on the mounting base 102, and the telescopic end is connected to the hinged support 203 through a hinge. The servo electric cylinder drives the mobile bracket 2 to slide horizontally on the base 1 by controlling the telescopic amount of the telescopic end. When the bracket position sensor 103 detects that the mobile bracket 2 has moved into place, the bracket driving mechanism 4 is servo locked, and the limit block 104 is used to limit the movable position range of the mobile bracket 2.

[0042] In addition to this embodiment, the support driving mechanism 4 may also adopt a servo hydraulic cylinder or a servo air cylinder to drive the movable support 2 to slide horizontally on the base 1 .

[0043] In this embodiment, two support columns 204 are fixedly installed above the fixed base 201. One side support column 204 is connected to the outer shell of the speed reduction mechanism 302, and the other side support column 204 is connected to the bearing seat 307, which supports the clamp replacement device 3. An inclined beam 205 is set on the side of the two support columns 204 close to the bracket driving mechanism 4. One end of the inclined beam 205 is fixedly connected to the middle of the support column 204, and the other end is fixedly connected to the fixed base 201.

[0044] In this embodiment, the clamp assembly 5 is modular in design and can be replaced conveniently and quickly to reduce the time waste caused by replacing the clamp during the production process and further improve work efficiency. The clamp assembly 5 includes a connecting bracket, a control box, and a clamp, which are all existing technologies and will not be described in detail.

[0045] For ordinary technicians in this field, based on the teachings of this utility model, without departing from the principles and spirit of this utility model, changes, modifications, substitutions and variations made to the implementation methods are still within the scope of protection of this utility model.

Claims

1. A windmill-type flexible fixture switching device, comprising a base (1), a movable bracket (2) slidably connected above the base (1), and a fixture switching device (3) fixedly installed above the movable bracket (2), characterized in that: The fixture replacement device (3) comprises a fixture mounting seat (306), which is a multi-faceted cylindrical structure comprising a plurality of fixture mounting surfaces, each of which is fixedly connected to a group of fixture components (5), and the fixture mounting seat (306) is driven by a power drive device.

2. The windmill-type flexible fixture switching device according to claim 1, characterized in that: The power drive device comprises a speed reduction mechanism (302), a power output end of the speed reduction mechanism (302) is transmission-connected to one end of a fixture mounting seat (306), and a fixture mounting surface of the fixture mounting seat (306) is perpendicularly arranged to the power output end surface of the speed reduction mechanism (302).

3. The windmill-type flexible clamp switching device according to claim 2, characterized in that: Two support columns (204) are fixedly provided at the upper end of the mobile bracket (2), the speed reduction mechanism (302) is fixedly connected to one side support column (204), and one end of the clamp mounting seat (306) away from the speed reduction mechanism (302) is fixedly connected to the other side support column (204).

4. The windmill-type flexible fixture switching device according to claim 3, characterized in that: A locking mechanism (303) and a mounting plate position sensor (305) are provided on the housing of the speed reduction mechanism (302).

5. The windmill-type flexible clamp switching device according to claim 4, characterized in that: One end of the fixture mounting seat (306) close to the speed reduction mechanism (302) is fixedly connected to a mounting plate (304), and a locking hole is provided on the circumference of the mounting plate (304) at a position corresponding to the fixture mounting surface.

6. The windmill-type flexible fixture switching device according to claim 5, characterized in that: The power input end of the speed reduction mechanism (302) is transmission-connected to the driving mechanism (301).

7. The windmill-type flexible fixture switching device according to claim 6, characterized in that: A mounting seat (102) is provided in the middle of the upper end surface of the base (1), a bracket driving mechanism (4) is fixedly provided on the mounting seat (102), a lower end of the support column (204) is fixedly connected to the fixed base (201), a hinged support (203) is provided on the bottom surface of the fixed base (201), and a telescopic end of the bracket driving mechanism (4) is connected to the hinged support (203) via a hinge.

8. The windmill-type flexible clamp switching device according to claim 7, characterized in that: Slide rails (101) are respectively provided on both sides of the upper end surface of the base (1), and two groups of sliders (202) are provided on the bottom surface of the fixed base (201), and the sliders (202) are respectively slidably connected to the corresponding slide rails (101).

9. The windmill-type flexible clamp switching device according to claim 8, characterized in that: A bracket position sensor (103) and a limit block (104) are respectively provided at positions at both ends of the slide rail (101) on the base (1).

10. The windmill-type flexible clamp switching device according to claim 9, characterized in that: The bracket position sensor (103) and the mounting plate position sensor (305) are proximity sensors.

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