Positioning device for new energy automobile part nut pressing rivet
By using a sliding device and gripper at the end of the robot to achieve sliding positioning of parts in the X, Y, and Z directions, the problem of easy sensor damage is solved, the positioning accuracy and efficiency of new energy vehicle production are improved, and the cost is reduced.
Patent Information
- Application Number
- CN202423269804.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Existing visual guidance methods suffer from sensor damage during new energy vehicle production, leading to high replacement costs and low production efficiency.
By using a sliding device and gripper at the end of the robot, the positioning of parts is achieved through sliding in the X, Y, and Z directions, replacing the traditional vision guidance method and using a mechanical structure for positioning.
It achieves high-precision component positioning, reduces production costs, avoids the configuration of expensive optical equipment and the wear and tear of vulnerable parts, and meets the needs of high-efficiency production.
Smart Images
Figure CN223616701U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of riveting technology for new energy vehicles, and in particular to a positioning device for riveting nuts for new energy vehicle parts. Background Technology
[0002] Currently, the development of new energy vehicles is accelerating, and automobile production lines need to meet the requirements of high-efficiency, low-cost, and high-quality automated automobile production.
[0003] Currently, in the production of new energy vehicles, robots are often used to carry workpieces for automatic riveting of nuts to improve production efficiency. The relative position and repeatability of the nut and workpiece are related to the quality of the riveting. The most common way to control the repeatability of the relative position of the nut and workpiece is to use vision-guided robots for positioning. The vision-guided method calculates the spatial position of the nut through a vision system, and then guides the robot to move and position the workpiece to the correct riveting position for automatic riveting. Although this method can ensure the accuracy of the riveting position, the vision-guided method obtains position information by receiving light reflections from sensors. The distance between the sensor receiver and the nut is mostly within the area of welding spatter, and the sensor receiver is easily damaged by high temperature and spatter. To protect the sensor, transparent glass is also used to isolate and protect the sensor. However, transparent glass is easily affected by high temperature and spatter and needs to be replaced frequently, resulting in high consumable costs. If the entire sensor set is replaced directly, the delivery cycle is very long because the sensors used in vision are non-standard customized products, which cannot meet the high-efficiency production of new energy vehicles.
[0004] How to solve the above problems has become an urgent technical issue. Utility Model Content
[0005] The purpose of this invention is to provide a low-cost, high-precision positioning device for nut riveting of new energy vehicle parts, effectively avoiding the problem of relying mainly on manual inspection for contact testing.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A positioning device for riveting nuts on new energy vehicle parts includes a robot, a sliding device, and a gripper. The sliding device is installed at the end of the robot, and the gripper is installed on the sliding device. The sliding device is used to drive the gripper to slide in the X, Y, and Z directions, and the gripper is used to grasp the parts.
[0008] Preferably, the sliding device includes a corner seat and a three-way sliding structure. The corner seat is fixed to the end of the robot, the three-way sliding structure is mounted on the corner seat, and the gripper is mounted on the three-way sliding structure. The three-way sliding structure is used to drive the gripper to slide in the X, Y, and Z directions.
[0009] Preferably, the three-directional sliding structure includes a first positioning cylinder, a first slide table capable of sliding along the X direction, a first slide rail disposed on the first slide table, a second positioning cylinder, a second slide table capable of sliding along the Z direction, a second slide rail disposed on the first slide table, a third slide table capable of sliding along the Y direction, and a third slide rail disposed on the second slide table; the gripper is mounted on the third slide table; the first positioning cylinder is mounted on the corner bracket, the first slide table is mounted on the corner bracket via the first slide rail, and the first slide table can slide horizontally in the X direction relative to the corner bracket; the second positioning cylinder is fixed on the first slide table, the second slide table is mounted on the first slide table via the second slide rail, and the second slide table can slide vertically in the Z direction relative to the first slide table; the third slide table is mounted on the second slide table via the third slide rail, and the third slide table can slide in the Y direction relative to the second slide table.
[0010] Due to the adoption of the above structure, the beneficial effects of this utility model are as follows:
[0011] In this invention, a robot, a sliding device, and a gripper are incorporated. The sliding device is mounted at the end of the robot, and the gripper is mounted on the sliding device. The sliding device drives the gripper to slide in the X, Y, and Z directions, and the gripper is used to grasp the component. Therefore, this invention enables the component to float in three directions within space using the first, third, and second slide rails, achieving component positioning relative to the nut during rivet application. The structure is simple and the positioning accuracy is high. Furthermore, this invention uses a mechanical structure to position the nut at different locations on the component, replacing traditional visual guidance methods. This eliminates the need for expensive optical equipment, avoids wear and tear on vulnerable parts, and significantly reduces production costs.
[0012] The present invention will become clearer from the following description and in conjunction with the accompanying drawings, which are used to explain the embodiments of the present invention. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the sliding device structure of this utility model;
[0016] Legend: 1. Robot; 2. Sliding device; 201. Angle seat; 202. First positioning cylinder; 203. First clamp; 204. First slide rail; 205. First slide table; 206. First gap adjustment block; 207. Second positioning cylinder; 208. Second clamp; 209. Second slide rail; 210. Second slide table; 211. Second gap adjustment block; 212. Third clamp; 213. Third slide rail; 214. Third slide table; 215. Third gap adjustment block; 3. Gripper; 4. Components. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] refer to Figure 1 The present invention provides an automatic positioning device for rivetizing nuts of new energy vehicle parts, comprising: a robot 1, a sliding device 2, a gripper 3, and a component 4. The robot 1 can be fixed on the ground. The sliding device 2 is installed at the end of the robot 1. The gripper 3 is installed on the sliding device 2 and the sliding device is used to drive the gripper 3 to slide in the X, Y, and Z directions. The gripper 3 is used to grip the component 4.
[0019] refer to Figure 2 The sliding device 2 includes a corner seat 201 and a three-way sliding structure. The corner seat 201 is fixed to the end of the robot 1. The three-way sliding structure is mounted on the corner seat 201 and the gripper 3 is mounted on the three-way sliding structure. The three-way sliding structure is used to drive the gripper 3 to slide in the X, Y and Z directions.
[0020] The three-way sliding structure includes a first positioning cylinder 202, a first slide 205 that can slide along the X direction, a first slide rail 204 provided on the first slide 205, a second positioning cylinder 207, a second slide 210 that can slide along the Y direction, a second slide rail 209 provided on the first slide 205, a third slide 214 that can slide along the Z direction, a third slide rail 213 provided on the second slide 210, and a gripper 3 installed on the third slide 214. The first positioning cylinder 202 is mounted on the corner seat 201, and the first slide 205 is mounted on the corner seat 201 via the first slide rail 204. The first slide 205 can slide relative to the corner seat 201 in the X direction. The second positioning cylinder 207 is fixed on the first slide 205, and the second slide 210 is mounted on the first slide 205 via the second slide rail 209. The second slide 210 can slide relative to the first slide 205 in the Z direction. The third slide 214 is mounted on the second slide 210 via the third slide rail 213. The third slide 214 can slide relative to the second slide 210 in the Y direction.
[0021] In this utility model, as needed, it may further include a first clamp 203, a first gap adjusting block 206, a second clamp 208, a second gap adjusting block 211, a third clamp 212, and a third gap adjusting block 215. The first gap adjusting block 206 is mounted on the first slide table 205 to limit the X-direction sliding space of the first slide table 205 and prevent the first slide table 205 from sliding off the track. The first clamp 203 is mounted on the first slide rail 204 for locking the first slide table 205. The second gap adjusting block 211... The first clamp 203, the first gap adjustment block 206, the second clamp 208, the second gap adjustment block 211, the third clamp 212, and the third gap adjustment block 215 are installed on the second slide table 210 to limit the sliding space of the second slide table 210 in the Z direction and prevent the second slide table 210 from sliding off the track. The third clamp 212 is installed on the third slide rail 213 to lock the third slide table 214. The first clamp 203, the first gap adjustment block 206, the second clamp 208, the second gap adjustment block 211, the third clamp 212, and the third gap adjustment block 215 themselves, as well as their installation on the corresponding slide table and slide rail, are all prior art and will not be described in detail here.
[0022] In practical use, during the riveting process of the robot 1 driving the sliding device 2, gripper 3, and component 4, the first positioning cylinder 202 and the second positioning cylinder 207 extend to fix the first slide 205, the second slide 210, and the third slide 214. When they reach the vicinity of the riveting station, the first positioning cylinder 202 and the second positioning cylinder 207 retract, and the first slide 205, the second slide 210, and the third slide 214 can slide in three different directions, namely the X, Y, and Z directions. Under the gravity of the gripper 3 and component 4, component 4 slides into the fixed rivet along the hole to be riveted, realizing the positioning of the rivet and component 4. Finally, by changing the spatial position of the gripper 3, the robot 1 can achieve the riveting positioning of component 4 in different directions.
[0023] The preferred embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above. Devices and structures not described in detail herein should be understood as being implemented in a conventional manner within the art. Any person skilled in the art can make many possible variations and modifications to the technical solutions of this utility model using the disclosed methods and techniques, or modify them into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of this utility model. This does not affect the essential content of this utility model. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the content of the technical solution of this utility model, still fall within the protection scope of the technical solution of this utility model.
Claims
1. A positioning device for riveting nuts in new energy vehicle parts, characterized in that: It includes a robot, a sliding device, and a gripper. The sliding device is installed at the end of the robot, and the gripper is installed on the sliding device. The sliding device is used to drive the gripper to slide in the X, Y, and Z directions. The gripper is used to grasp the parts.
2. The positioning device for nut riveting of new energy vehicle parts according to claim 1, characterized in that: The sliding device includes a corner bracket and a three-way sliding structure. The corner bracket is fixed to the end of the robot, and the three-way sliding structure is mounted on the corner bracket and the gripper is mounted on the three-way sliding structure. The three-way sliding structure is used to drive the gripper to slide in the X, Y and Z directions.
3. A positioning device for riveting nuts in new energy vehicle components according to claim 2, characterized in that: The three-directional sliding structure includes a first positioning cylinder, a first slide table capable of sliding along the X direction, a first slide rail disposed on the first slide table, a second positioning cylinder, a second slide table capable of sliding along the Z direction, a second slide rail disposed on the first slide table, a third slide table capable of sliding along the Y direction, and a third slide rail disposed on the second slide table. A gripper is mounted on the third slide table. The first positioning cylinder is mounted on the corner bracket, the first slide table is mounted on the corner bracket via the first slide rail, and the first slide table can slide horizontally in the X direction relative to the corner bracket. The second positioning cylinder is fixed on the first slide table, the second slide table is mounted on the first slide table via the second slide rail, and the second slide table can slide vertically in the Z direction relative to the first slide table. The third slide table is mounted on the second slide table via the third slide rail, and the third slide table can slide in the Y direction relative to the second slide table.