Multi-vehicle-type workpiece flexible tightening system of automobile front cover welding production line

Abstract

The utility model discloses a multi-vehicle-type workpiece flexible tightening system of an automobile front cover welding production line. The number of clamps can be increased or decreased according to vehicle type requirements in a clamp storage position, and a flexible tightening switching module can move in the X direction, the Y direction and the Z direction so as to tighten workpieces of different vehicle types. When a workpiece of a certain vehicle type is tightened, the driving module drives the clamp storage position to rotate so that the corresponding clamp can rotate to the working position, the robot places the workpiece on the clamp to be fixed, the clamp switching and locking mechanism locks the clamp storage position, and then the workpiece is tightened. When the fixture in-place detection module detects that the fixture is mounted in place, the flexible tightening switching module is switched to the tightening state of the corresponding vehicle type, and the flexible tightening switching module tightens the vehicle type workpiece; and finally, the requirement for flexible tightening switching of workpieces of multiple vehicle types can be met, and more space is saved through arrangement.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile accessory production, particularly to a multi-model workpiece flexible tightening system of automobile front cover welding production line. BACKGROUND

[0002] At present, a large number of workpiece tightening devices of domestic automobile production lines are purchased from abroad, different workpiece tightening devices are needed for different models, and there are problems of long manufacturing cycle and high cost, and the overall number of workpiece tightening devices for different models is large, which can not meet the planning requirements due to insufficient production site. INVENTION CONTENTS

[0003] The utility model aims at providing a multi-model workpiece flexible tightening system of automobile front cover welding production line, which can meet the needs of tightening workpieces of multiple models.

[0004] The above technical purpose of the utility model is realized by the following technical scheme: a multi-model workpiece flexible tightening system of automobile front cover welding production line, comprising a main frame, a driven frame obliquely arranged on the main frame, two clamp storage locations symmetrically arranged above the driven frame and capable of installing clamps corresponding to workpieces of different models, a driving module arranged between the two ends of the clamp storage location and the driven frame and capable of driving the clamp storage location to rotate, a clamp switching locking mechanism arranged between the clamp storage location and the driven frame and capable of locking the rotated clamp garage, a clamp position detection module for detecting whether the clamp is installed in place, and two flexible tightening switching modules symmetrically arranged at the two ends of the driven frame and capable of tightening workpieces held by the clamp.

[0005] By adopting the above technical scheme, the number of clamps in the clamp storage location can be increased or decreased according to the model requirements, and the flexible tightening switching module can move along the XYZ three directions to realize tightening of workpieces of different models; when tightening workpieces of a certain model, the clamp storage location is first driven to rotate by the driving module, so that the corresponding clamp is rotated to the working position, the workpiece is placed on the clamp and fixed by the robot, the clamp storage location is locked by the clamp switching locking mechanism, and then when the clamp is installed in place by the clamp position detection module, the flexible tightening switching module is switched to the tightening state of the corresponding model, and the flexible tightening switching module tightens the workpieces of the model; finally, the needs of flexible tightening switching of workpieces of multiple models can be met, and the arrangement is more space-saving.

[0006] The utility model is further provided as follows: the clamp storage location comprises a middle frame and a plurality of clamp connecting frames arranged on the circumferential side of the middle frame, and the structures of the plurality of clamp connecting frames are different to adapt to the installation of clamps of workpieces of different models.

[0007] By adopting the technical scheme, the clamp storage positions include the intermediate frame and the plurality of clamp connecting frames, and the plurality of clamp connecting frames are different in structure to adapt to the installation of the clamps of different vehicle models.

[0008] The utility model discloses further provide that: drive module includes the speed reducer motor of setting on the driven frame and with one end of intermediate frame is connected, rotates and connects the driven rotary shaft of setting on the driven frame and with the other end of intermediate frame is connected.

[0009] By adopting the technical scheme, the drive module includes the speed reducer motor, the driven rotary shaft, and when the speed reducer motor operates, the clamp storage position can be driven to rotate to switch the mold on the different clamp connecting frames for use.

[0010] The utility model discloses further provide that: the clamp switching locking mechanism includes a plurality of circumferential array setting in the bearing seat of one end of clamp storage position, a plurality of two two setting on the locating bearing of bearing seat, setting on the linear cylinder of driven frame, setting on the output shaft of linear cylinder and being used for the positioning of the plug -in between two locating bearings of positioning plug -in, a plurality of bearing seat are used for positioning the clamp of installing on a plurality of clamp connecting frames respectively.

[0011] By adopting the technical scheme, the plurality of bearing seats are used for positioning the clamp of installing on the plurality of clamp connecting frames respectively, when the drive module drives the clamp storage position to rotate to switch the mold on the different clamp connecting frames for use, the linear cylinder drives the positioning plug -in to extend and then is inserted between the two locating bearings of bearing seat to lock.

[0012] The utility model discloses further provide that: the clamp switching locking mechanism sets up two, two clamp switching locking mechanism sets up respectively in the both ends of clamp storage position and between driven frame.

[0013] By adopting the technical scheme, the clamp switching locking mechanism sets up two, two clamp switching locking mechanism sets up respectively in the both ends of clamp storage position and between driven frame, thereby improving the stability of the positioning and locking of the clamp storage position.

[0014] The further setting of the utility model is that the flexible tightening switching module comprises Y-direction walking load-bearing tracks arranged on the driven frame, Y-direction walking servo modules arranged between the Y-direction walking load-bearing tracks and the driven frame, first X-direction walking load-bearing tracks arranged on the Y-direction walking servo modules, first X-direction walking servo modules arranged between the first X-direction walking load-bearing tracks and the Y-direction walking servo modules, mounting seats arranged on the first X-direction walking servo modules, Z-direction walking load-bearing tracks arranged on the mounting seats, lifting seats arranged on the Z-direction walking load-bearing tracks in a lifting mode, Z-direction walking air cylinders arranged between the mounting seats and the lifting seats, second X-direction walking load-bearing tracks arranged on the lifting seats, second X-direction walking servo modules arranged between the second X-direction walking load-bearing tracks and the lifting seats, tightening tools arranged on the second X-direction walking servo modules in a Y-direction telescopic mode and Y-direction walking servo cylinders arranged between the second X-direction walking servo modules and the tightening tools.

[0015] By adopting the above technical scheme, firstly, the Y-direction walking servo module, the first X-direction walking servo module and the Z-direction walking air cylinder are arranged, so that the lifting seat can be driven to move along the XYZ direction; secondly, the second X-direction walking servo module and the Y-direction walking servo cylinder are arranged, so that the tightening tool can be further driven to move along the XY direction for switching; finally, the tightening tool can move along the XYZ three directions to realize multi-position tightening.

[0016] The further setting of the utility model is that the clamp in-place detection module is a sensor arranged on the driven frame.

[0017] By adopting the above technical scheme, the clamp in-place detection module is a sensor, and the sensor can check whether the clamp installation on the clamp storage location is in place. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural schematic view of the utility model;

[0019] Figure 2 is a front view of the utility model;

[0020] Figure 3 is a structural schematic view of the driven frame, the clamp storage location, the driving module and the clamp switching locking mechanism in the utility model;

[0021] Figure 4 is Figure 3 a partial structural schematic view;

[0022] Figure 5 is Figure 4 a partial enlarged view located at A in the utility model;

[0023] Figure 6 is a structural schematic view of the flexible tightening switching module in the utility model;

[0024] Figure 7 is Figure 6 a side view.

[0025] Reference signs: 1, main frame; 2, driven frame; 3, clamp storage position; 31, intermediate frame; 32, clamp connecting frame; 4, driving module; 41, speed reduction motor; 42, driven rotating shaft; 5, clamp switching locking mechanism; 51, bearing seat; 52, positioning bearing; 53, straight-line air cylinder; 54, positioning bolt; 6, clamp to position detection module; 7, flexible tightening switching module; 71, Y-direction walking load-bearing track; 72, Y-direction walking servo module; 73, first X-direction walking load-bearing track; 74, first X-direction walking servo module; 75, mounting seat; 76, Z-direction walking load-bearing track; 77, lifting seat; 78, Z-direction walking air cylinder; 79, second X-direction walking load-bearing track; 710, second X-direction walking servo module; 711, tightening tool; 712, Y-direction walking servo cylinder. DETAILED DESCRIPTION

[0026] The utility model will be further explained in detail below in combination with the drawings.

[0027] Embodiment: a flexible tightening system for multiple vehicle types of workpieces of an automobile front cover welding production line, as shown in Figure 1 and Figure 2 , comprising a main frame 1, a driven frame 2 obliquely arranged on the main frame 1, two clamp storage positions 3 symmetrically arranged above the driven frame 2 and capable of installing clamps for corresponding different vehicle types of workpieces, a driving module 4 arranged between the two ends of the clamp storage position 3 and the driven frame 2 and driving the clamp storage position 3 to rotate, a clamp switching locking mechanism 5 arranged between the clamp storage position 3 and the driven frame 2 and realizing locking of the rotated clamp garage, a clamp to position detection module 6 for detecting whether the clamp is installed in place, and two flexible tightening switching modules 7 symmetrically arranged at the two ends of the driven frame 2 and used for tightening the workpiece clamped by the clamp, the flexible tightening switching module 7 can move along the XYZ three directions to realize multi-position tightening.

[0028] As shown in Figure 1 , Figure 3 and Figure 4 , the clamp storage position 3 comprises an intermediate frame 31 and a plurality of clamp connecting frames 32 arranged on the circumferential side of the intermediate frame 31, and the structures of the plurality of clamp connecting frames 32 are different to adapt to the installation of clamps for different vehicle types of workpieces.

[0029] As shown in Figure 1 , Figure 3 and Figure 4As shown, the driving module 4 includes a reducer motor 41 arranged on the driven frame 2 and connected with one end of the intermediate frame 31, and a driven rotating shaft 42 rotatably connected on the driven frame 2 and connected with the other end of the intermediate frame 31.

[0030] As shown in Figure 1 , Figures 3 to 5 , the clamp switching and locking mechanism 5 is provided with two, and the two clamp switching and locking mechanisms 5 are respectively arranged between the two ends of the clamp storage position 3 and the driven frame 2. The clamp switching and locking mechanism 5 includes a plurality of bearing seats 51 arranged in a circumferential array on one end of the intermediate frame 31 of the clamp storage position 3, a plurality of positioning bearings 52 arranged on the bearing seats 51 in pairs, a linear cylinder 53 arranged on the driven frame 2, a positioning pin 54 arranged on the output shaft of the linear cylinder 53 and used for inserting between the two positioning bearings 52 for positioning, and a plurality of bearing seats 51 respectively used for positioning a plurality of clamps installed on the clamp connecting frame 32.

[0031] As shown in Figure 2 , the clamp in-place detection module 6 is a sensor arranged on the driven frame 2.

[0032] As shown in Figure 1 , Figure 6 and Figure 7 , the flexible tightening switching module 7 includes a Y-direction walking load-bearing rail 71 arranged on the driven frame 2, a Y-direction walking servo module 72 arranged between the Y-direction walking load-bearing rail 71 and the driven frame 2, a first X-direction walking load-bearing rail 73 arranged on the Y-direction walking servo module 72, a first X-direction walking servo module 74 arranged between the first X-direction walking load-bearing rail 73 and the Y-direction walking servo module 72, a mounting seat 75 arranged on the first X-direction walking servo module 74, a Z-direction walking load-bearing rail 76 arranged on the mounting seat 75, a lifting seat 77 arranged on the Z-direction walking load-bearing rail 76 in a lifting manner, a Z-direction walking cylinder 78 arranged between the mounting seat 75 and the lifting seat 77, a second X-direction walking load-bearing rail 79 arranged on the lifting seat 77, a second X-direction walking servo module 710 arranged between the second X-direction walking load-bearing rail 79 and the lifting seat 77, a tightening tool 711 arranged on the second X-direction walking servo module 710 in a Y-direction telescopic manner, and a Y-direction walking servo cylinder 712 arranged between the second X-direction walking servo module 710 and the tightening tool 711.

[0033] Implementation effect: the clamp storage location 3 can add or subtract the number of clamps according to the vehicle model demand, the flexible tightening switching module 7 can move along the XYZ three directions to realize the tightening of different vehicle models workpieces; when the tightening operation is carried out for a certain vehicle model workpiece, first drive the clamp storage location 3 to rotate through the driving module 4, so that the corresponding clamp rotates to the working position, and the workpiece is placed on the clamp for fixation by the robot, the clamp storage location 3 is locked through the clamp switching locking mechanism 5, and then when the clamp is installed in place by the clamp in place detection module 6, the flexible tightening switching module 7 switches to the tightening state of the corresponding vehicle model, and the flexible tightening switching module 7 tightens the vehicle model workpiece; finally, the demand of flexible tightening switching of multiple vehicle model workpieces can be met, and the space is saved.

[0034] The clamp storage location 3 includes a middle frame 31 and a plurality of clamp connection frames 32, and the plurality of clamp connection frames 32 are different in structure to adapt to the installation of clamps for different vehicle model workpieces. The driving module 4 includes a reduction motor 41 and a driven rotating shaft 42, which can drive the clamp storage location 3 to rotate to switch the mold on the different clamp connection frames 32 for use when the driving motor 41 operates. A plurality of bearing seats 51 are respectively used for positioning the clamps installed on the plurality of clamp connection frames 32, and when the driving module 4 drives the clamp storage location 3 to rotate to switch the mold on the different clamp connection frames 32 for use, the straight-line cylinder 53 drives the positioning pin 54 to extend and is inserted between the two positioning bearings 52 of the bearing seat 51 for locking. The clamp switching locking mechanism 5 is provided with two, and the two clamp switching locking mechanisms 5 are respectively arranged between the two ends of the clamp storage location 3 and the driven frame 2, so as to improve the stability of the positioning and locking of the clamp storage location 3. The clamp in place detection module 6 is a sensor, and the sensor can check whether the clamp on the clamp storage location 3 is installed in place.

[0035] Firstly, the setting of the Y-direction walking servo module 72, the first X-direction walking servo module 74 and the Z-direction walking cylinder 78 can drive the lifting seat 77 to move along the XYZ direction; secondly, the setting of the second X-direction walking servo module 710 and the Y-direction walking servo cylinder 712 further drives the tightening tool 711 to move along the XY direction for switching; finally, the tightening tool 711 can move along the XYZ three directions to realize multi-position tightening.

[0036] The specific embodiment is only an explanation of the utility model, and is not a limitation of the utility model. Those skilled in the art can make modifications without creative contribution according to the needs after reading the specification, but as long as it is within the scope of the claims of the utility model, it is protected by the patent law.

Claims

1. A flexible tightening system for multi-model workpieces in an automotive hood welding production line, characterized in that: The utility model relates to a flexible tightening device for automobile assembly, including main frame (1), driven frame (2) is arranged on the main frame (1) and is inclined, two symmetrically set up the clamp storage location (3) of the clamp for corresponding different vehicle workpiece installation above driven frame (2), set up the drive module (4) between the clamp storage location (3) both ends and driven frame (2) and drive clamp storage location (3) and rotate, set up the clamp switching locking mechanism (5) between the clamp storage location (3) and driven frame (2) and realize to the clamp garage after rotation and lock, the clamp in place detection module (6) for detecting whether the clamp is installed, two symmetrically set up the flexible tightening switching module (7) of the workpiece for being twisted through the clamp and being used for tightening at driven frame (2) both ends, the flexible tightening switching module (7) can move along three directions of XYZ to realize multi -position tightening.

2. The multi-model workpiece flexible tightening system of the automobile front cover welding production line according to claim 1, characterized in that: The clamp storage location (3) includes an intermediate frame (31), a plurality of clamp connection frames (32) arranged on the periphery of the intermediate frame (31), and the plurality of clamp connection frames (32) are different in structure to adapt to the installation of clamps for different vehicle workpieces.

3. The multi-model workpiece flexible tightening system of the automobile front cover welding production line according to claim 2, characterized in that: The drive module (4) includes a reduction motor (41) arranged on the driven frame (2) and connected to one end of the intermediate frame (31), and a driven rotating shaft (42) rotatably connected to the driven frame (2) and connected to the other end of the intermediate frame (31).

4. The multi-model workpiece flexible tightening system of the automobile front cover welding production line according to claim 2, characterized in that: The clamp switching locking mechanism (5) includes a plurality of bearing seats (51) arranged in a circular array at one end of the clamp storage location (3), a plurality of positioning bearings (52) arranged two by two on the bearing seats (51), a linear cylinder (53) arranged on the driven frame (2), a positioning pin (54) arranged on the output shaft of the linear cylinder (53) and used for inserting between the two positioning bearings (52) for positioning, and a plurality of bearing seats (51) for positioning the clamps installed on the plurality of clamp connection frames (32), respectively.

5. The multi-model workpiece flexible tightening system of the automobile hood welding production line of claim 4, characterized in that: The clamp switching locking mechanism (5) is provided with two, and the two clamp switching locking mechanisms (5) are arranged between the two ends of the clamp storage location (3) and the driven frame (2), respectively.

6. The multi-model workpiece flexible tightening system of the automobile hood welding production line of claim 1, wherein: The flexible tightening switching module (7) comprises a Y-direction walking load-bearing track (71) arranged on the driven frame (2), a Y-direction walking servo module (72) arranged between the Y-direction walking load-bearing track (71) and the driven frame (2), a first X-direction walking load-bearing track (73) arranged on the Y-direction walking servo module (72), a first X-direction walking servo module (74) arranged between the first X-direction walking load-bearing track (73) and the Y-direction walking servo module (72), a mounting seat (75) arranged on the first X-direction walking servo module (74), a Z-direction walking load-bearing track (76) arranged on the mounting seat (75), a lifting seat (77) arranged on the Z-direction walking load-bearing track (76) in a lifting manner, a Z-direction walking cylinder (78) arranged between the mounting seat (75) and the lifting seat (77), a second X-direction walking load-bearing track (79) arranged on the lifting seat (77), a second X-direction walking servo module (710) arranged between the second X-direction walking load-bearing track (79) and the lifting seat (77), a tightening tool (711) arranged on the second X-direction walking servo module (710) in a Y-direction telescopic manner, and a Y-direction walking servo cylinder (712) arranged between the second X-direction walking servo module (710) and the tightening tool (711).

7. The multi-model workpiece flexible tightening system of the automobile hood welding production line of claim 1, wherein: The clamp-to-position detection module (6) is a sensor arranged on the driven frame (2).

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