High-precision positioning device for dashboard laser weakening

Abstract

The utility model relates to positioning device technical field especially relates to a kind of high-precision positioning device for instrument panel laser weakening, including workbench, adjusting limiting mechanism, fixed limiting mechanism and latitude and longitude positioning mechanism;The surface of weakening table is provided with the support groove for accommodating instrument panel, the bottom center of support groove is provided with the positioning slot corresponding to instrument panel weakening area, latitude and longitude positioning mechanism is installed in the inside of positioning slot, the rear end two sides edge of support groove are symmetrically provided with two groups of fixed limiting mechanism for fixing the rear end of instrument panel, the two sides wall front section of support groove is symmetrically provided with two groups of adjusting limiting mechanism for the front end of instrument panel;The utility model realizes by latitude and longitude positioning mechanism, can carry out quantitative positioning feedback to the key node on weakening line, greatly improves the positioning accuracy of instrument panel, places and positioning operation of instrument panel more convenient and flexible by adjusting limiting mechanism and fixed limiting mechanism.

Description

Technical Field

[0001] This utility model relates to the field of positioning device technology, and in particular to a high-precision positioning device for instrument panel laser weakening. Background Technology

[0002] As the automotive industry rapidly develops towards intelligence and lightweighting, the instrument panel, as a core component of the car cockpit, faces increasing demands for structural complexity and processing precision. In the instrument panel production process, laser weakening technology is a key step in achieving precise airbag deployment and flexible component connections. This process requires high-precision laser scanning of specific areas of the instrument panel, and the accuracy of the positioning device directly determines the accuracy of the weakening line, thus affecting the vehicle's driving safety and the instrument panel's service life. Currently, most mainstream instrument panel laser weakening positioning devices are based on a fixed workbench structure design, achieving instrument panel positioning through simple mechanical limits.

[0003] Traditional positioning devices, through mechanical structures, can only qualitatively determine whether the instrument panel is in place. They cannot provide quantitative positioning feedback for key nodes on the weakened circuit, making it difficult to verify the accuracy of the circuit in real time during laser processing. If the instrument panel experiences slight displacement due to installation deviation or material deformation, it can easily cause the weakened circuit to shift, leading to the product failing to meet fracture performance standards and becoming unusable.

[0004] Therefore, to address the problems existing in the use of the aforementioned traditional positioning devices, a high-precision positioning device for instrument panel laser weakening can be designed. By retaining the mechanical limiting structure, a latitude and longitude positioning mechanism is innovatively introduced. By setting a positioning plate with magnetic longitude and latitude lines in the positioning groove, and setting an intersection feedback pin at the intersection of the longitude and latitude lines, the laser equipment can adjust in real time according to the feedback information during the processing, thereby facilitating the solution of the above problems. Utility Model Content

[0005] To overcome the shortcomings of traditional positioning devices, which can only qualitatively determine whether the instrument panel is in place and cannot provide quantitative positioning feedback for key nodes on the weakened line, thus easily causing the weakened line to deviate and leading to the product's failure to meet the fracture performance standards and being scrapped, this utility model provides a high-precision positioning device for laser weakening of instrument panels.

[0006] The technical solution is as follows: A high-precision positioning device for laser weakening of instrument panels includes a worktable, an adjustment limiting mechanism, a fixed limiting mechanism, and a latitude and longitude positioning mechanism; the surface of the weakening table is provided with a support groove for accommodating the instrument panel, and the bottom center of the support groove is provided with a positioning groove corresponding to the weakening area of ​​the instrument panel; the interior of the positioning groove is equipped with a latitude and longitude positioning mechanism for providing positioning feedback for the weakening line node; two sets of fixed limiting mechanisms for fixing the rear end of the instrument panel are symmetrically provided on both sides of the rear end of the support groove; and two sets of adjustment limiting mechanisms for the front end of the instrument panel are symmetrically provided on the front sections of both sides of the support groove.

[0007] Furthermore, the latitude and longitude positioning mechanism includes a positioning plate. The bottom of the positioning groove has an embedded mounting groove for mounting the positioning plate. The positioning plate is embedded inside the embedded mounting groove. Multiple sets of magnetic weft lines are arranged horizontally on the surface of the positioning plate. Multiple sets of magnetic warp lines are arranged vertically between the multiple sets of magnetic weft lines. The multiple sets of magnetic weft lines and the multiple sets of magnetic warp lines are interlaced. At the intersection nodes of the multiple sets of magnetic weft lines and the multiple sets of magnetic warp lines, there are intersection feedback needles.

[0008] Furthermore, both sides of the support groove are provided with adjustment slots, and both the front and rear sides of the two sets of adjustment slots are provided with movable holes.

[0009] Furthermore, the adjustment limiting mechanism includes a first limiting block, a buffer patch is attached to the rear end face of the first limiting block, a moving block is provided on the side of the first limiting block near the adjustment movable groove, the side of the moving block away from the first limiting block extends into the interior of the adjustment movable groove, and an adjustment screw hole concentric with the movable hole is opened in the center of the moving block.

[0010] Furthermore, the interior of the adjustable groove is equipped with a lead screw corresponding to the adjusting screw hole, and both ends of the lead screw are equipped with movable shafts extending to the movable hole. The front sides of the bearing groove are equipped with a first micro motor connected to the movable shaft.

[0011] Furthermore, the two sets of fixed limiting mechanisms include two sets of limiting seats, which are located at the rear end of the bearing groove on both sides. A rotating hole is opened in the center of the limiting seat, and a rotating shaft is provided inside the rotating hole. A second limiting block corresponding to the first limiting block is provided at the upper end of the rotating shaft, and the lower end of the rotating shaft extends to the bottom of the limiting seat. A second micro motor that is connected to the rotating shaft is provided at the rear end of the worktable.

[0012] Furthermore, support mounting plates are provided at the corners of both sides of the workbench, and support legs are provided at the bottom of the support mounting plates.

[0013] The beneficial effects are that, compared with traditional positioning devices, which have problems during use, this application, through a latitude and longitude positioning mechanism, utilizes a positioning network composed of magnetic meridians and magnetic parallels, as well as intersection feedback needles, to provide quantitative positioning feedback for key nodes on the weakened line, greatly improving the positioning accuracy of the instrument panel. This effectively avoids the problem of weakened line offset caused by instrument panel installation deviations and material deformation, ensuring the accuracy of laser weakening processing. The design of the adjustable limit mechanism and the fixed limit mechanism makes the placement and positioning operation of the instrument panel more convenient and flexible. The adjustable limit mechanism can precisely adjust the position of the first limit block through the first micro motor to adapt to instrument panels of different sizes and shapes. The fixed limit mechanism controls the rotation of the second limit block through the second micro motor, realizing the rapid fixing and loosening of the rear end of the instrument panel, improving the convenience and efficiency of production operations. The support mounting plate and support legs of the workbench provide stable support for the entire device, ensuring the stability and reliability of the device during processing. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the high-precision positioning device for laser weakening of instrument panels according to this utility model. Figure 2 This is a schematic diagram of the three-dimensional structure of the weakening platform of this utility model; Figure 3 This is a three-dimensional structural diagram of the fixing and limiting mechanism of this utility model; Figure 4 This is a three-dimensional structural diagram of the adjustment and limiting mechanism of this utility model; Figure 5 This is a three-dimensional structural diagram of the latitude and longitude positioning mechanism of this utility model.

[0015] Explanation of reference numerals in the attached drawings: 1. Workbench; 101. Support groove; 102. Positioning groove; 103. Embedded mounting groove; 104. Support mounting plate; 105. Adjustable movable groove; 106. Movable hole; 2. Adjustment limiting mechanism; 201. First limiting block; 202. Buffer patch; 203. Moving block; 204. Adjustment screw hole; 205. Lead screw; 206. Movable shaft; 207. First micro motor; 3. Fixed limiting mechanism; 301. Limiting seat; 302. Rotary hole; 303. Second limiting block; 304. Rotating shaft; 305. Second micro motor; 4. Warp and weft positioning mechanism; 401. Positioning plate; 402. Magnetic weft; 403. Magnetic warp; 404. Intersection feedback needle; 5. Support leg. Detailed Implementation

[0016] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. Example

[0017] like Figures 1-5As shown, a high-precision positioning device for laser weakening of an instrument panel includes a worktable 1, an adjustment limiting mechanism 2, a fixing limiting mechanism 3, and a latitude and longitude positioning mechanism 4. The surface of the weakening table is provided with a support groove 101 for accommodating the instrument panel. The bottom center of the support groove 101 is provided with a positioning groove 102 corresponding to the weakening area of ​​the instrument panel. The positioning groove 102 is equipped with a latitude and longitude positioning mechanism 4 for providing positioning feedback for the weakening line node. Two sets of fixing limiting mechanisms 3 for fixing the rear end of the instrument panel are symmetrically provided on both sides of the rear end of the support groove 101. Two sets of adjustment limiting mechanisms 2 for the front end of the instrument panel are symmetrically provided on the front sections of both sides of the support groove 101.

[0018] The latitude and longitude positioning mechanism 4 includes a positioning plate 401. The bottom of the positioning groove 102 is provided with an embedded mounting groove 103 for mounting the positioning plate 401. The positioning plate 401 is embedded in the interior of the embedded mounting groove 103. Multiple sets of magnetic weft lines 402 are arranged horizontally on the surface of the positioning plate 401. Multiple sets of magnetic warp lines 403 are arranged vertically between the multiple sets of magnetic weft lines 402. The multiple sets of magnetic weft lines 402 and the multiple sets of magnetic warp lines 403 are interleaved. At the intersection nodes of the multiple sets of magnetic weft lines 402 and the multiple sets of magnetic warp lines 403, there are intersection feedback needles 404.

[0019] The two side walls of the support groove 101 are provided with adjustment grooves 105, and the front and rear side walls of the two sets of adjustment grooves 105 are provided with movable holes 106.

[0020] The adjustment limiting mechanism 2 includes a first limiting block 201. A buffer patch 202 is attached to the rear end face of the first limiting block 201. A moving block 203 is provided on the side of the first limiting block 201 near the adjustment movable groove 105. The side of the moving block 203 away from the first limiting block 201 extends into the interior of the adjustment movable groove 105. An adjustment screw hole 204 concentric with the movable hole 106 is opened in the center of the moving block 203.

[0021] The interior of the adjusting movable groove 105 is equipped with a lead screw 205 corresponding to the adjusting screw hole 204. Both ends of the lead screw 205 are provided with movable shafts 206 extending to the movable hole 106. The front side edges of the bearing groove 101 are provided with a first micro motor 207 (the model of the first micro motor 207 is Dfr0429) connected to the movable shaft 206.

[0022] The two sets of fixed limiting mechanisms 3 include two sets of limiting seats 301. The two sets of limiting seats 301 are located at the rear end edges of the bearing groove 101. A rotating hole 302 is opened in the center of the limiting seat 301. A rotating shaft 304 is provided inside the rotating hole 302. A second limiting block 303 corresponding to the first limiting block 201 is provided at the upper end of the rotating shaft 304. The lower end of the rotating shaft 304 extends to the bottom of the limiting seat 301. A second micro motor 305 (model TM4614C MOS) is provided at the rear bottom of the worktable 1 and is connected to the rotating shaft 304 for transmission.

[0023] Support mounting plates 104 are provided at the corners of both sides of the workbench 1, and support legs 5 are provided at the bottom of the support mounting plates 104.

[0024] During operation, the operator first places the instrument panel workpiece to be processed into the support slot 101 of the workbench 1. The second micro motor 305 drives the rotating shaft 304 to rotate, causing the two second limit blocks 303 to rotate inward and press against the rear sides of the instrument panel from the rear, completing the main fixation. Subsequently, the first micro motor 207 starts, driving the lead screws 205 on both sides to rotate synchronously, causing the moving block 203 and the first limit block 201 at the front end to move horizontally inward along the adjusting movable slot 105 until the front end of the instrument panel is clamped from both sides. At this time, the instrument panel is completely restricted within the mechanical frame formed by the first limit block 201 and the second limit block 303. After clamping, the magnetic meridians 403 and magnetic parallels 402 on the positioning plate 401 form a high-precision grid-like magnetic field reference surface. During the laser scanning weakening process, the signal of the meridian and parallel grid is continuously monitored. If vibration occurs during processing and causes the instrument panel to drift, the system can immediately sense the offset and direction through the change of feedback signal and dynamically adjust the processing path of the laser head or immediately stop processing to prevent the generation of defective products.

[0025] Its working principle is as follows: the second micro motor 305 drives the rotating shaft 304 to rotate within the rotating hole 302 of the limiting seat 301 through the transmission assembly. The second limiting block 303 at the upper end of the rotating shaft 304 rotates accordingly until the inner side wall of the second limiting block 303 is tightly fitted with the rear end of the instrument panel, completing the initial fixation of the rear end of the instrument panel. Then, the first micro motor 207 of the adjusting limiting mechanism 2 is activated. The first micro motor 207 drives the movable shaft 206 to rotate. The movable shaft 206 drives the lead screw 205 to rotate within the adjusting movable groove 105. Since the adjusting screw hole 204 on the moving block 203 meshes with the lead screw 205, the rotation of the lead screw 205 is converted into linear movement of the moving block 203 along the adjusting movable groove 105. The moving block 203 drives the first limiting block 201 to move towards the front end of the instrument panel until the rear end of the first limiting block 201. The buffer patch 202 contacts the front end of the instrument panel; the positioning plate 401 in the latitude and longitude positioning mechanism 4 is installed in the positioning groove 102 at the bottom of the support groove 101. The magnetic meridians 403 and magnetic parallels 402 on the surface of the positioning plate 401 intersect to form a positioning network. The intersection feedback needle 404 is set at the intersection node of the meridians and parallels. When the instrument panel is placed in the support groove 101, if the position of the instrument panel is offset, the magnetic environment fed back by the intersection feedback needle 404, magnetic meridians 403 and magnetic parallels 402 corresponding to the weakening path at its edge will change. After the instrument panel is in the correct position, the laser cutting head can accurately control the movement trajectory of the laser beam according to the weakening intersection coordinates and path information determined by the intersection feedback needle 404, magnetic meridians 403 and magnetic parallels 402, so as to achieve precise cutting of the weakened area of ​​the instrument panel.

[0026] Its beneficial effects are significant. This application, through the latitude and longitude positioning mechanism 4, utilizes a positioning network composed of magnetic meridians 403 and magnetic parallels 402, as well as intersection feedback needles 404, to provide quantitative positioning feedback for key nodes on the weakened line, greatly improving the positioning accuracy of the instrument panel and effectively avoiding the problem of weakened line offset caused by instrument panel installation deviation and material deformation, thus ensuring the accuracy of laser weakening processing. The design of the adjustable limit mechanism 2 and the fixed limit mechanism 3 makes the placement and positioning operation of the instrument panel more convenient and flexible. The adjustable limit mechanism 2 can precisely adjust the position of the first limit block 201 through the first micro motor 207 to adapt to instrument panels of different sizes and shapes. The fixed limit mechanism 3 controls the rotation of the second limit block 303 through the second micro motor 305 to achieve rapid fixing and loosening of the rear end of the instrument panel, improving the convenience and efficiency of production operations. The support mounting plate 104 and support legs 5 of the workbench 1 provide stable support for the entire device, ensuring the stability and reliability of the device during processing.

Claims

1. A high-precision positioning device for instrument panel laser weakening, comprising a workbench (1); characterized in that, It also includes an adjustment limit mechanism (2), a fixed limit mechanism (3) and a latitude and longitude positioning mechanism (4); the surface of the weakening platform is provided with a support groove (101) for accommodating the instrument panel, and a positioning groove (102) corresponding to the weakening area of ​​the instrument panel is provided at the bottom center of the support groove (101). The positioning groove (102) is equipped with a latitude and longitude positioning mechanism (4) for providing positioning feedback of the weakening line node. Two sets of fixed limit mechanisms (3) for fixing the rear end of the instrument panel are symmetrically provided on both sides of the rear end of the support groove (101), and two sets of adjustment limit mechanisms (2) for the front end of the instrument panel are symmetrically provided on the front sections of both sides of the support groove (101).

2. The high-precision positioning device for instrument panel laser weakening according to claim 1, characterized in that, The latitude and longitude positioning mechanism (4) includes a positioning plate (401). The bottom of the positioning groove (102) is provided with an embedded mounting groove (103) for mounting the positioning plate (401). The positioning plate (401) is embedded in the interior of the embedded mounting groove (103). Multiple sets of magnetic weft lines (402) are arranged horizontally on the surface of the positioning plate (401). Multiple sets of magnetic longitude lines (403) are arranged vertically between the multiple sets of magnetic weft lines (402). The multiple sets of magnetic weft lines (402) and the multiple sets of magnetic longitude lines (403) are intersected. At the intersection nodes of the multiple sets of magnetic weft lines (402) and the multiple sets of magnetic longitude lines (403), there are intersection feedback needles (404).

3. The high-precision positioning device for laser weakening of instrument panels according to claim 1, characterized in that, The two side walls of the support groove (101) are provided with adjustment grooves (105), and the front and rear side walls of the two sets of adjustment grooves (105) are provided with movable holes (106).

4. A high-precision positioning device for laser weakening of instrument panels according to claim 3, characterized in that, The adjustment limiting mechanism (2) includes a first limiting block (201), a buffer patch (202) is attached to the rear end face of the first limiting block (201), a moving block (203) is provided on the side of the first limiting block (201) near the adjustment movable groove (105), the side of the moving block (203) away from the first limiting block (201) extends into the interior of the adjustment movable groove (105), and an adjustment screw hole (204) concentric with the movable hole (106) is opened in the center of the moving block (203).

5. A high-precision positioning device for laser weakening of instrument panels according to claim 4, characterized in that, The interior of the adjusting movable groove (105) is equipped with a lead screw (205) corresponding to the adjusting screw hole (204). Both ends of the lead screw (205) are provided with movable shafts (206) extending to the movable hole (106). The front sides of the bearing groove (101) are provided with a first micro motor (207) connected to the movable shaft (206).

6. A high-precision positioning device for laser weakening of instrument panels according to claim 5, characterized in that, The two sets of fixed limiting mechanisms (3) include two sets of limiting seats (301). The two sets of limiting seats (301) are located at the rear side edges of the bearing groove (101). A rotating hole (302) is opened in the center of the limiting seat (301). A rotating shaft (304) is provided inside the rotating hole (302). A second limiting block (303) corresponding to the first limiting block (201) is provided at the upper end of the rotating shaft (304). The lower end of the rotating shaft (304) extends to the bottom of the limiting seat (301). A second micro motor (305) is provided at the bottom of the rear end of the worktable (1) and is connected to the rotating shaft (304) for transmission.

7. A high-precision positioning device for laser weakening of instrument panels according to claim 1, characterized in that, The workbench (1) has a support mounting plate (104) at the corner of both sides, and a support leg (5) is provided at the bottom of the support mounting plate (104).

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