Switching mechanism for door area splicing tire membranes
By designing the door to distinguish the switching mechanism of the diaphragm, the sliding and positioning mechanism are used to achieve rapid disassembly and installation of the diaphragm base plate, combined with clamping and gun change, the problem of difficulty in switching between existing diaphragm clamps between different models is solved, and the effect of rapid switching and cost saving is achieved.
Patent Information
- Application Number
- CN202421832176.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-07-30
AI Technical Summary
The existing diaphragm fixtures are only suitable for door panels of one vehicle model, resulting in the need to replace the entire set of fixtures when switching between different vehicle models, increasing production costs and reducing production efficiency.
A switching mechanism for doors to distinguish between the diaphragm, is designed to quickly disassemble and reinstall the diaphragm base plate through the sliding mechanism and the positioning mechanism, and combine it with the clamping mechanism and the gun change disc to quickly switch the movable diaphragm.
It realizes rapid switching of door panels of different models, reduces production costs and improves work efficiency, and is especially suitable for situations where there are not much differences in vehicle models.
Smart Images
Figure CN222830444U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile production auxiliary tools, in particular to a switching mechanism for splicing tire membranes in door areas. Background Art
[0002] The robot hemming process is mostly used for automobile hemming. The membrane clamp is an important part of the robot hemming device, which is used to place and clamp automobile parts that need hemming, such as door panels. At present, a set of membrane clamps only corresponds to the door panels of one model. With the increasingly fierce competition in the automobile market, the automobile development cycle is constantly shortening, and new models are constantly emerging. According to the hemming requirements of door panels of different models, it is necessary to design multiple sets of membrane clamps, which increases the production cost; and the whole set of membrane clamps needs to be switched for different models, which is time-consuming and labor-intensive, and reduces production efficiency. Utility Model Content
[0003] The utility model aims to overcome the deficiencies of the prior art and provides a switching mechanism for splicing tire membranes in door areas, so as to realize convenient switching of movable tire membrane parts for door panels of different vehicle models.
[0004] The utility model is realized by the following technical solutions:
[0005] A switching mechanism for splicing a fetal membrane in a door area comprises a base plate and a fetal membrane mounted on the base plate, wherein the fetal membrane is composed of a fixed fetal membrane and a movable fetal membrane arranged front and back, the fixed fetal membrane is fixedly mounted on the base plate, the movable fetal membrane is mounted on a fetal membrane bottom plate, a sliding mechanism is mounted on the base plate, the fixed end of the sliding mechanism is fixed on the base plate, the fetal membrane bottom plate is detachably mounted on a sliding platform of the sliding mechanism, and the sliding platform of the sliding mechanism slides linearly in a front-rear direction, thereby driving the fetal membrane bottom plate and the movable fetal membrane away from or close to the fixed fetal membrane;
[0006] A transition plate is fixedly arranged on the fetal membrane bottom plate, and a gun changing plate is detachably connected to the transition plate, and the transition plate is connected to the robot arm through the gun changing plate;
[0007] The positioning mechanism is used to realize the positioning between the fetal membrane bottom plate and the sliding platform in the horizontal plane, and the clamping mechanism is used to realize the clamping of the fetal membrane bottom plate relative to the base plate in the vertical direction.
[0008] As a preferred solution of the above-mentioned switching mechanism, the positioning mechanism includes two groups of first positioning components arranged between the fetal membrane bottom plate and the sliding platform, and each group of first positioning components is positioned by matching the first positioning pins and the first positioning holes.
[0009] As a preferred solution of the above-mentioned switching mechanism, the clamping mechanism includes two groups of clamping assemblies, and the two groups of clamping assemblies are located on the left and right sides of the fetal membrane base plate. Each group of clamping assemblies includes a first clamping cylinder installed on the base plate, and the clamping rocker arm is flipped by the first clamping cylinder to achieve clamping or release of the upper surface of the fetal membrane base plate.
[0010] As a preferred solution of the above-mentioned switching mechanism, the sliding mechanism includes a sliding base plate fixed on a base plate, and two left and right fixed slide rails are arranged on the sliding base plate, and each fixed slide rail extends in the front and rear directions. The bottom of the sliding platform is slidably set on the two fixed slide rails, and a pull rod cylinder is provided on the base plate. The pull rod of the pull rod cylinder extends from front to rear and is hinged to the front end of the sliding platform. The pull rod of the pull rod cylinder is extended and retracted back and forth, thereby driving the sliding platform to slide back and forth.
[0011] As a preferred solution of the above-mentioned switching mechanism, a main support block and two auxiliary support blocks are provided on the sliding platform, and two supporting blocks are provided at the bottom of the fetal membrane bottom plate. The two auxiliary support blocks provide contact support to the two supporting blocks respectively, and the main support block provides contact support to the bottom surface of the fetal membrane bottom plate.
[0012] As a preferred solution of the above-mentioned switching mechanism, the substrate is provided with a working position positioning mechanism for positioning the sliding table when it slides forward to the working position, the working position positioning mechanism includes two left and right groups of second positioning components located on the left and right sides of the sliding table, each group of second positioning components includes a positioning cylinder installed on the substrate, a second positioning pin extending vertically upward is provided on the output end of the positioning cylinder, and outwardly extending positioning brackets are respectively provided on the left and right sides of the sliding table, and a second positioning hole is opened on the positioning bracket. The second positioning pin is driven to extend and retract vertically by the positioning cylinder, thereby realizing the cooperation and disengagement of the second positioning pin and the second positioning hole.
[0013] As a preferred solution of the above-mentioned switching mechanism, the work position positioning mechanism also includes two groups of left and right work position limit assemblies, each group of work position limit assemblies includes a front limit member and a rear limit member, the front limit member is installed on the sliding base plate, and is used to block and limit the front side of the sliding platform located at the work position, and the rear limit member includes a second clamping cylinder installed on the bottom of the sliding base plate, and the clamping rocker arm of the second clamping cylinder is located on the rear side of the sliding platform. The clamping rocker arm is driven to flip by the second clamping cylinder to achieve clamping or release of the rear side of the sliding platform located at the work position.
[0014] As a preferred solution of the above-mentioned switching mechanism, two buffers are provided on the sliding bottom plate, and the two buffers are located at the front side of the sliding platform to buffer the sliding platform moving forward.
[0015] As a preferred solution of the above-mentioned switching mechanism, two guiding units for guiding the hemming workpiece placed on the fetal membrane are provided on the fetal membrane bottom plate.
[0016] As a preferred solution of the above-mentioned switching mechanism, a position detection device is provided on the front side of the fetal membrane base plate.
[0017] Compared with the prior art, the utility model has the following advantages:
[0018] The utility model provides a switching mechanism for splicing tire membranes in door areas, in which the tire membrane is designed to be a split structure, that is, it is composed of a fixed tire membrane and a movable tire membrane. The fixed tire membrane is fixedly installed on a base plate, the movable tire membrane is installed on a tire membrane floor, and the tire membrane bottom plate is detachably installed on a sliding table of the sliding mechanism, and the tire membrane bottom plate is clamped and installed relative to the base plate through a positioning mechanism and a clamping mechanism. The tire membrane bottom plate is quickly connected and disconnected with the robot's mechanical arm through a gun changing plate, thereby realizing rapid switching of movable tire membranes of different specifications to meet the clamping requirements of door panels of different vehicle models; and when switching, only the movable tire membrane part needs to be switched, and there is no need to replace the entire tire membrane, so that the switching part is small in size and light in weight, which is convenient for rapid switching, while saving production costs and improving work efficiency. It is particularly suitable for situations where the door panels of different vehicle models are not very different. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0020] Figure 2 It is a structural schematic diagram of the utility model when the movable fetal membrane is in a working position on the sliding mechanism.
[0021] Figure 3 It is a structural schematic diagram of the utility model when the movable fetal membrane is in a state of being pulled back on the sliding mechanism.
[0022] Figure 4 It is a structural schematic diagram of the movable fetal membrane part of the utility model.
[0023] Figure 5 The utility model is a schematic diagram of the structure of the gun changing plate of the movable fetal membrane part and the gun changing plate after explosion.
[0024] Figure 6 It is a structural schematic diagram of the sliding mechanism of the utility model.
[0025] Numbers in the figure: 1 base plate; 2 fixed fetal membrane; 3 movable fetal membrane; 4 fetal membrane bottom plate; 5 sliding table; 6 sliding bottom plate; 7 fixed slide rail; 8 pull rod cylinder; 9 main support block; 10 auxiliary support block; 11 support and pressure block; 12 buffer; 13 positioning cylinder; 14 second positioning pin; 15 positioning bracket; 16 second positioning hole; 17 front limit piece; 18 second clamping cylinder; 19 proximity switch; 20 safety latch; 21 third clamping cylinder; 22 guide block; 23 transition plate; 24 gun changing plate; 25 zero point chuck; 26 pull pin; 27 first clamping cylinder. DETAILED DESCRIPTION
[0026] The following is a detailed description of an embodiment of the utility model. This embodiment is implemented on the premise of the technical solution of the utility model, and a detailed implementation method and a specific operation process are given, but the protection scope of the utility model is not limited to the following embodiment.
[0027] See also Figures 1 to 6 The present embodiment discloses a switching mechanism for splicing fetal membranes in a door area, including a substrate 1 and a fetal membrane installed on the substrate 1. The fetal membrane is composed of a fixed fetal membrane 2 and a movable fetal membrane 3 arranged in front and back. The fixed fetal membrane 2 is fixedly installed on the substrate 1, and the movable fetal membrane 3 is installed on the fetal membrane bottom plate 4. A sliding mechanism is installed on the substrate 1, and the fixed end of the sliding mechanism is fixed on the substrate 1. The fetal membrane bottom plate 4 is detachably installed on the sliding platform 5 of the sliding mechanism. The sliding platform 5 of the sliding mechanism slides linearly in the front and back directions, thereby driving the fetal membrane bottom plate 4 and the movable fetal membrane 3 away from or close to the fixed fetal membrane 2.
[0028] Among them, the sliding mechanism includes a sliding base plate 6 fixed on the base plate 1, and two left and right fixed slide rails 7 are arranged on the sliding base plate 6. Each fixed slide rail 7 extends in the front and rear directions. The bottom of the sliding platform 5 is slidably set on the two fixed slide rails 7 through sliders. A pull rod cylinder 8 is provided on the base plate 1. The pull rod of the pull rod cylinder 8 extends from front to rear and is hinged to the front end of the sliding platform 5. The pull rod of the pull rod cylinder 8 is extended and retracted forward and backward, thereby driving the sliding platform 5 to slide forward and backward.
[0029] A main support block 9 and two auxiliary support blocks 10 are provided on the sliding platform 5. Two support blocks 11 are provided at the bottom of the fetal membrane bottom plate 4. The two auxiliary support blocks 10 respectively contact and support the two support blocks 11, and the main support block 9 contacts and supports the bottom surface of the fetal membrane bottom plate 4. Two buffers 12 are provided on the sliding bottom plate 6. The two buffers 12 are located at the front side of the sliding platform 5 to buffer the sliding platform 5 moving forward.
[0030] A working position positioning mechanism is provided on the base plate 1 for positioning the sliding table 5 when it slides forward to the working position. The working position positioning mechanism includes two left and right groups of second positioning components located on the left and right sides of the sliding table 5. Each group of second positioning components includes a positioning cylinder 13 installed on the base plate 1. A second positioning pin 14 extending vertically upward is provided on the output end of the positioning cylinder 13. Positioning brackets 15 extending outward are respectively provided on the left and right sides of the sliding table 5. A second positioning hole 16 is opened on the positioning bracket 15. The second positioning pin 14 is driven to extend and retract vertically by the positioning cylinder 13, thereby realizing the cooperation and disengagement of the second positioning pin 14 and the second positioning hole 16. The working position positioning mechanism also includes two groups of left and right working position limit assemblies, each group of working position limit assemblies includes a front limit member 17 and a rear limit member, the front limit member 17 is installed on the sliding base plate 6, and is used to block and limit the front side of the sliding platform 5 located at the working position, and the rear limit member includes a second clamping cylinder 18 installed at the bottom of the sliding base plate 6, and the clamping rocker arm of the second clamping cylinder 18 is located at the rear side of the sliding platform 5. The clamping rocker arm is driven to flip by the second clamping cylinder 18 to achieve clamping or release of the rear side of the sliding platform 5 located at the working position.
[0031] A position detection device is provided on the front side of the membrane base plate 4, and the position detection device includes a proximity switch 19 and a safety latch 20, both of which are used to detect whether the membrane base plate 4 slides forward on the base plate 1. Two guide units are provided on the membrane base plate 4 for guiding the hemming workpiece placed on the membrane, and each guide unit includes a third clamping cylinder 21 installed on the membrane base plate 4, and a guide block 22 is provided at the end of the clamping rocker arm of the third clamping cylinder 21. The hemming workpiece placed on the membrane is guided by the guide block 22 at the end of the clamping rocker arm of the third clamping cylinder 21. A transition plate 23 is fixedly provided on the membrane base plate 4, and a gun changing plate 24 is detachably connected to the transition plate 23. The transition plate 23 is connected to the robot arm through the gun changing plate 24. Among them, the gun changing plate 24 and the transition plate 23 can be detachably connected by screw connection.
[0032] The positioning between the membrane bottom plate 4 and the sliding platform 5 in the horizontal plane is achieved by a positioning mechanism, and the positioning mechanism includes two groups of first positioning components arranged between the membrane bottom plate 4 and the sliding platform 5, and each group of first positioning components is positioned by the cooperation of the first positioning pin and the first positioning hole. In this embodiment, the first positioning component adopts a zero-point positioning system, and the zero-point chuck 25 of the zero-point positioning system is installed on the sliding platform 5, and the center chuck hole of the zero-point chuck 25 is used as the first positioning hole, and the rivet 26 of the zero-point positioning system is installed at the bottom of the membrane bottom plate 4 as the first positioning pin. Through two groups of zero-point positioning systems, accurate positioning between the membrane bottom plate 4 and the sliding platform 5 in the horizontal plane is achieved.
[0033] The clamping mechanism is used to clamp the membrane bottom plate 4 in the vertical direction relative to the base plate 1. The clamping mechanism includes two sets of clamping assemblies, which are located on the left and right sides of the membrane bottom plate 4. Each set of clamping assemblies includes a first clamping cylinder 27 installed on the base plate 1. The first clamping cylinder 27 drives the clamping rocker arm to flip, thereby clamping or releasing the upper surface of the membrane bottom plate 4.
[0034] During the rolling process, when it is necessary to switch door panels of different models, first unlock the sliding platform 5 and the tire membrane bottom plate 4 in the working position. The specific operation is as follows:
[0035] The two positioning cylinders 13 are actuated, so that the two positioning cylinders 13 respectively drive the two second positioning pins 14 to retract downward, and the two second positioning pins 14 respectively leave the two positioning brackets 15; the two second clamping cylinders 18 are actuated, so that the clamping rocker arms of the two second clamping cylinders 18 are respectively flipped outward and opened, thereby unlocking the sliding table 5; the two first clamping cylinders 27 are actuated, so that the clamping rocker arms of the two first clamping cylinders 27 are flipped outward and opened, thereby releasing the unlocking of the fetal membrane base plate 4.
[0036] Then, the slide table 5 is pushed backward by the pull rod cylinder 8, thereby driving the fetal membrane bottom plate 4 and the movable fetal membrane 3 installed on the slide table 5 to move backward together, so that the movable fetal membrane 3 moves backward and is pulled away from the fixed fetal membrane 2 by a certain distance. After that, the robot's mechanical arm is connected to the gun changing plate 24, and the entire fetal membrane bottom plate 4 and the movable fetal membrane 3 thereon are removed by the robot.
[0037] Finally, the robot grabs the fetal membrane base plate 4 of the active fetal membrane 3 that needs to be used and places it on the sliding table 5. Relying on two sets of zero-point positioning systems, the fetal membrane base plate 4 and the sliding table 5 are accurately positioned in the horizontal plane. Then the robot leaves and pulls the sliding table 5 forward through the pull rod cylinder 8, thereby driving the fetal membrane base plate 4 and the active fetal membrane 3 installed on the sliding table 5 to move forward to the working position. The two positioning cylinders 13 and the two second clamping cylinders 18 act in opposite directions respectively to achieve accurate positioning of the sliding table 5 in the working position. The two first clamping cylinders 27 act in opposite directions to press the fetal membrane base plate 4 to ensure that the fetal membrane base plate 4 and the fetal membrane thereon are accurately in the working position, ensuring that the active fetal membrane 3 and the fixed fetal membrane 2 are accurately spliced without gaps, thereby completing the quick switching of the active fetal membrane 3.
[0038] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A switching mechanism for splicing fetal membranes in a door area, comprising a substrate and a fetal membrane mounted on the substrate, characterized in that: The fetal membrane is composed of a fixed fetal membrane and a movable fetal membrane arranged front to back, the fixed fetal membrane is fixedly mounted on a base plate, the movable fetal membrane is mounted on a fetal membrane bottom plate, a sliding mechanism is mounted on the base plate, the fixed end of the sliding mechanism is fixed on the base plate, the fetal membrane bottom plate is detachably mounted on a sliding platform of the sliding mechanism, and the sliding platform of the sliding mechanism slides linearly in the front-to-back direction, thereby driving the fetal membrane bottom plate and the movable fetal membrane away from or close to the fixed fetal membrane; A transition plate is fixedly arranged on the fetal membrane bottom plate, and a gun changing plate is detachably connected to the transition plate, and the transition plate is connected to the robot arm through the gun changing plate; The positioning mechanism is used to realize the positioning between the fetal membrane bottom plate and the sliding platform in the horizontal plane, and the clamping mechanism is used to realize the clamping of the fetal membrane bottom plate relative to the base plate in the vertical direction.
2. A switching mechanism for door area splicing fetal membranes as claimed in claim 1, characterized in that: The positioning mechanism comprises two groups of first positioning components arranged between the fetal membrane bottom plate and the sliding platform, and each group of first positioning components is positioned by matching the first positioning pins and the first positioning holes.
3. A switching mechanism for door area splicing fetal membranes as claimed in claim 1, characterized in that: The clamping mechanism includes two groups of clamping assemblies, which are located on the left and right sides of the fetal membrane base plate. Each group of clamping assemblies includes a first clamping cylinder installed on the base plate. The first clamping cylinder drives the clamping rocker arm to flip to achieve clamping or release of the upper surface of the fetal membrane base plate.
4. A switching mechanism for door area splicing fetal membranes as claimed in claim 1, characterized in that: The sliding mechanism includes a sliding base plate fixed on a base plate, two left and right fixed slide rails are arranged on the sliding base plate, each fixed slide rail extends in the front-to-back direction, the bottom of the sliding platform is slidably arranged on the two fixed slide rails, a pull rod cylinder is arranged on the base plate, the pull rod of the pull rod cylinder extends from front to back and is hinged to the front end of the sliding platform, and the pull rod of the pull rod cylinder is extended and retracted back and forth, thereby driving the sliding platform to slide back and forth.
5. A switching mechanism for splicing fetal membranes in door areas as claimed in claim 4, characterized in that: A main support block and two auxiliary support blocks are provided on the sliding platform, two support blocks are provided at the bottom of the fetal membrane bottom plate, the two auxiliary support blocks respectively provide contact support to the two support blocks, and the main support block provides contact support to the bottom surface of the fetal membrane bottom plate.
6. A switching mechanism for door area splicing fetal membranes as claimed in claim 4, characterized in that: The base plate is provided with a working position positioning mechanism for positioning the sliding platform when it slides forward to the working position, the working position positioning mechanism includes two left and right groups of second positioning components located on the left and right sides of the sliding platform, each group of second positioning components includes a positioning cylinder installed on the base plate, a second positioning pin extending vertically upward is provided on the output end of the positioning cylinder, and outwardly extending positioning brackets are respectively provided on the left and right sides of the sliding platform, and a second positioning hole is opened on the positioning bracket, and the second positioning pin is driven to vertically extend and retract by the positioning cylinder, thereby realizing the cooperation and disengagement of the second positioning pin and the second positioning hole.
7. A switching mechanism for door area splicing fetal membranes as claimed in claim 6, characterized in that: The work position positioning mechanism also includes two left and right groups of work position limit assemblies, each group of work position limit assemblies includes a front limit piece and a rear limit piece, the front limit piece is installed on the sliding base plate, and is used to block and limit the front side of the sliding platform located at the work position, and the rear limit piece includes a second clamping cylinder installed on the bottom of the sliding base plate, and the clamping rocker arm of the second clamping cylinder is located at the rear side of the sliding platform. The clamping rocker arm is driven to flip by the second clamping cylinder to achieve clamping or release of the rear side of the sliding platform located at the work position.
8. A switching mechanism for door area splicing fetal membranes as claimed in claim 4, characterized in that: The sliding bottom plate is provided with two buffers, which are located at the front side of the sliding platform and provide buffering for the sliding platform moving forward.
9. A switching mechanism for door area splicing fetal membranes as claimed in claim 1, characterized in that: The fetal membrane bottom plate is provided with two guiding units for guiding the hemming workpiece placed on the fetal membrane.
10. The switching mechanism for door area splicing fetal membranes as claimed in claim 1, characterized in that: A position detection device is provided on the front side of the fetal membrane bottom plate.