Profiling measuring head of front bumper middle testing fixture
By designing a contour measuring head suitable for both plastic and metal front bumpers, and combining non-contact and contact measurement methods, the problem of needing to replace the measuring head for front bumpers of different materials was solved, achieving efficient and accurate measurement results.
Patent Information
- Application Number
- CN202520546150.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-26
AI Technical Summary
In existing technologies, different measuring heads are required for front bumpers made of different materials (plastic and metal), which is inconvenient to operate.
A front bumper center gauge contour measuring head was designed, comprising lateral and vertical movement components, adjustment parts, and a measuring head. It employs a laser displacement sensor, a 3D scanner, and a coordinate measuring machine, combining non-contact and contact measurement methods, and is suitable for both plastic and metal front bumpers.
It enables efficient and accurate measurement of plastic and metal front bumpers, avoiding operational inconvenience caused by material differences and improving measurement accuracy and efficiency.
Smart Images
Figure CN223870066U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to front bumper production technical field, concretely is a front bumper middle part gauge profiling measurement head. BACKGROUND
[0002] Profiling measurement head is an important part of automobile gauge, mainly used for accurate measurement and inspection of automobile front bumper. Profiling measurement head plays a vital role in automobile manufacturing process. It can ensure that the size, shape, position and function of automobile parts meet the design requirements, thereby improving manufacturing efficiency and quality. By using the profiling measurement head, the shape and size of the automobile front bumper can be detected to ensure that it meets the design requirements and avoids errors in production. When using the profiling measurement head, it is usually installed on the gauge base, and then through the cooperation with the vehicle body surface, the front bumper is accurately measured.
[0003] Based on the above, the present inventor found that there are the following problems: the current front bumper is generally made of plastic or metal material, and the profiling measurement methods for different materials are different. The plastic front bumper material is soft, and generally uses non-contact profiling measurement, while the metal front bumper has high rigidity and strength, and generally uses contact profiling measurement. Direct contact with the surface of the metal bumper ensures the measurement accuracy, which requires replacing the measurement head with different measurement methods for front bumpers with different materials, which is inconvenient to operate.
[0004] Therefore, in view of the above, the existing structure and defects are improved, and a front bumper middle part gauge profiling measurement head is provided to achieve a more practical value. INVENTION CONTENTS
[0005] The utility model aims at providing a front bumper middle part gauge profiling measurement head to solve the problems in the background.
[0006] In view of the above problems, the technical scheme provided by the utility model is:
[0007] A front bumper middle part gauge profiling measurement head, comprising a transverse movement assembly, a vertical movement assembly, an adjusting piece and a measurement head, the vertical movement assembly is arranged above the transverse movement assembly, the adjusting piece is arranged below one end of the vertical movement assembly, the measurement head is arranged below the adjusting piece, the transverse movement assembly is used to drive the vertical movement assembly to move left and right, the vertical movement assembly is used to drive the adjusting piece to move forward and backward, the adjusting piece is used to adjust the angle of the measurement head, the measurement head is used for profiling measurement of a plastic front bumper or a metal front bumper, the measurement head comprises a first mounting seat and a second mounting seat, a pair of first round holes are formed in the bottom end of the first mounting seat, a laser displacement sensor and a three-dimensional scanner are respectively arranged in the pair of first round holes, a second round hole is formed in the inner bottom end of the second mounting seat, and a three-coordinate measuring instrument is arranged in the second round hole.
[0008] Further, a contact probe is arranged at the bottom end of the three-coordinate measuring instrument.
[0009] The beneficial effect of the above further scheme is that the contact probe directly obtains discrete point data for stable measurement of the rigid structure of the metal front bumper by installing the contact probe at the bottom end of the three-coordinate measuring instrument for contact profiling measurement of the middle part of the metal front bumper.
[0010] Further, the adjusting piece comprises a connecting seat, a convex seat is rotatably connected to the inner bottom end of the connecting seat, the bottom end of the convex seat is fixedly connected to the upper end of the first mounting seat, a hydraulic rod is arranged at the upper end of the convex seat away from the first mounting seat, the movable end of the hydraulic rod penetrates through the convex seat, and the movable end of the hydraulic rod is fixedly connected to the top surface of the second mounting seat.
[0011] The beneficial effect of the above further scheme is that the laser displacement sensor and the three-dimensional scanner are arranged on the first mounting seat for non-contact measurement of the metal front bumper, the entire middle part of the metal front bumper is scanned and measured, and the hydraulic rod is arranged, so that when the hydraulic rod is started, the movable end of the hydraulic rod pushes down the second mounting seat, so that the three-coordinate measuring instrument and the contact probe arranged on the second mounting seat are in contact with the middle part of the metal front bumper for measurement of the bolt hole position and the flatness of the welding surface.
[0012] Further, a gear ring is arranged outside the upper end of the convex seat, a rotating shaft is rotatably connected to the upper end of the convex seat in the inner part of the connecting seat, the rotating shaft is provided with a gear outside, and the gear and the gear ring are in meshing relationship.
[0013] The beneficial effect of adopting the above-mentioned further solution is that, through the coordinated use of the rotating shaft, gear, gear ring and convex seat, when the rotating shaft rotates, the gear rotates. Since the gear and gear ring mesh, the rotation of the gear ring drives the convex seat to rotate, thereby realizing the angle adjustment of the convex seat, so that the measuring head can perform contour measurement on the side of the middle of the front bumper.
[0014] Furthermore, a power box is installed on the outer wall of the connecting seat. One end of the rotating shaft extends through the convex seat into the interior of the power box and is fitted with a worm gear. A worm is rotatably connected inside the power box. The worm and the worm gear mesh with each other. A second motor is installed on the back of the power box. The output end of the second motor is connected to the worm for transmission.
[0015] The beneficial effect of adopting the above-mentioned further solution is that, through the coordinated use of the second motor, worm, worm wheel and rotating shaft, when the second motor is started, it drives the worm to rotate, which in turn drives the worm wheel to rotate, thereby realizing the rotation of the rotating shaft.
[0016] Furthermore, the vertical moving component includes a support, a vertical seat is installed inside the support, an electric slide rail is installed inside the vertical seat, an electric slider is slidably connected to the outside of the electric slide rail, and the bottom end of the electric slider is fixedly connected to the upper end of the connecting seat.
[0017] The beneficial effect of adopting the above-mentioned further solution is that the electric slide rail and the electric slider are electrically connected. Through the cooperation of the electric slide rail and the electric slider, when the electric slider moves on the electric slide rail, it is convenient to drive the adjustment component and the measuring head to move vertically.
[0018] Furthermore, the lateral movement assembly includes a lateral seat, a lead screw is rotatably connected inside the lateral seat, a slide is threadedly connected to the outside of the lead screw, a sliding groove is formed at the upper end of the lateral seat, the upper end of the slide extends into the interior of the sliding groove, and the outer wall of the upper end of the slide slide slides in contact with the inner wall of the sliding groove. The top surface of the slide is fixedly connected to the bottom end of the support. A first motor is installed on one side of the outer wall of the lateral seat, and the output end of the first motor is connected to the lead screw via a transmission.
[0019] The beneficial effect of adopting the above-mentioned further solution is that by setting a first motor, it is easy to drive the lead screw to rotate when the first motor is started, so that the slide block connected to its external thread can move horizontally under the sliding action with the slide groove. Through the coordinated use of the lateral movement component and the vertical movement component, a comprehensive contour measurement of the middle part of the front bumper can be performed.
[0020] Furthermore, mounting buckles are installed at the four outer corners of the transverse seat.
[0021] The advantage of adopting the above-mentioned further solution is that by setting the mounting buckle, it is easy to mount the transverse seat on the profile gauge by bolt fasteners.
[0022] Compared with the prior art, the beneficial effects of this utility model are as follows: The front bumper center fixture contour measuring head is used for front bumpers made of either plastic or metal. When contour measurement is required for the center of a plastic front bumper, a non-contact, comprehensive scan of the center is performed using a 3D scanner and a laser displacement sensor. The soft plastic material allows for non-contact contour measurement, avoiding damage to the surface of the center of the plastic front bumper. When contour measurement is required for the center of a metal front bumper, the hydraulic rod is activated, causing its movable end to push the second mounting base downwards, allowing the coordinate measuring machine and contact probe to contact the surface of the metal front bumper and measure the flatness of the welded surface. This contact measurement method improves the accuracy of contour measurement for metal front bumpers. Attached Figure Description
[0023] Figure 1 A three-dimensional structural schematic diagram of a front bumper center inspection fixture contour measuring head provided by this utility model;
[0024] Figure 2 An exploded three-dimensional structural diagram of the lateral movement component of the contour measuring head of the front bumper center inspection fixture provided by this utility model;
[0025] Figure 3 A bottom-view three-dimensional structural diagram of the vertical moving component of the front bumper center gauge contour measuring head provided by this utility model;
[0026] Figure 4 An exploded three-dimensional structural diagram of the adjusting component of the contour measuring head of the front bumper center inspection fixture provided by this utility model;
[0027] Figure 5 A front cross-sectional view of the power box of a front bumper center inspection fixture with a contour measuring head provided by this utility model.
[0028] In the diagram: 1. Lateral movement assembly; 11. Lateral seat; 12. Lead screw; 13. Slide seat; 14. Slide groove; 15. First motor; 16. Mounting buckle; 2. Vertical movement assembly; 21. Support; 22. Vertical seat; 23. Electric slide rail; 24. Electric slider; 3. Adjusting component; 31. Connecting seat; 32. Convex seat; 33. Rotating shaft; 34. Gear; 35. Gear ring; 36. Power box; 37. Worm gear; 38. Worm; 39. Second motor; 310. Hydraulic rod; 4. Measuring head; 41. First mounting seat; 42. Laser displacement sensor; 43. 3D scanner; 44. Second mounting seat; 45. Coordinate measuring machine; 46. Contact probe. Detailed Implementation
[0029] 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.
[0030] Please see Figures 1-5 This utility model provides a technical solution: a front bumper center inspection tool contour measuring head, including a lateral movement component 1, a vertical movement component 2, an adjusting component 3, and a measuring head 4. The vertical movement component 2 is disposed above the lateral movement component 1, the adjusting component 3 is disposed below one end of the vertical movement component 2, and the measuring head 4 is disposed below the adjusting component 3. The lateral movement component 1 is used to drive the vertical movement component 2 to move left and right, the vertical movement component 2 is used to drive the adjusting component 3 to move back and forth, the adjusting component 3 is used to adjust the angle of the measuring head 4, and the measuring head 4 is used to perform contour measurement on plastic or metal front bumpers. The measuring head 4 includes a first mounting base 41 and a second mounting base 44. The bottom end of the first mounting base 41 has a pair of first circular holes. Each part is equipped with a laser displacement sensor 42 and a 3D scanner 43. The bottom of the second mounting base 44 has a second circular hole, and a coordinate measuring machine 45 is installed inside the second circular hole. When it is necessary to perform contour measurement on the middle part of the plastic front bumper, the 3D scanner 43 and the laser displacement sensor 42 perform a non-contact full scan on the middle part of the plastic front bumper. Since the plastic material is soft, the non-contact contour measurement can avoid damage to the surface of the middle part of the plastic front bumper. When it is necessary to perform contour measurement on the middle part of the metal front bumper, the coordinate measuring machine 45 and the contact probe 46 contact the surface of the metal front bumper to measure the flatness of the welding surface. The combination of non-contact measurement and contact measurement improves the accuracy of contour measurement on the metal front bumper.
[0031] 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.
[0032] Please see Figures 1-5This utility model provides a technical solution: a contact probe 46 is installed at the center of the bottom end of a coordinate measuring machine 45; an adjusting component 3 includes a connecting seat 31; a convex seat 32 is rotatably connected inside the connecting seat 31 near the bottom end; one side of the bottom end of the convex seat 32 is fixedly connected to the upper end of a first mounting seat 41; a hydraulic rod 310 is installed on the upper end of the convex seat 32 on the side away from the first mounting seat 41; the movable end of the hydraulic rod 310 passes through the convex seat 32, and the movable end of the hydraulic rod 310 is connected to the first mounting seat 41. The top surface of the second mounting base 44 is fixedly connected. A toothed ring 35 is sleeved on the upper outer end of the convex base 32. A rotating shaft 33 is rotatably connected to the interior of the connecting base 31 located at the upper end of the convex base 32. A gear 34 is sleeved on the exterior of the rotating shaft 33. The gear 34 and the toothed ring 35 mesh with each other. A power box 36 is installed on the outer wall of the connecting base 31. One end of the rotating shaft 33 extends through the convex base 32 into the interior of the power box 36 and is sleeved with a worm gear 37. A worm 38 is rotatably connected inside the power box 36. The rod 38 and the worm gear 37 mesh with each other. A second motor 39 is installed on the back of the power box 36. The output end of the second motor 39 is connected to the worm gear 38. Since the first mounting base 41 is equipped with a laser displacement sensor 42 and a 3D scanner 43, a comprehensive non-contact contour measurement of the metal front bumper is performed. When the hydraulic rod 310 is activated, its movable end pushes the second mounting base 44 downward, so that the coordinate measuring machine 45 and the contact probe 46 installed on the second mounting base 44 make contact measurement with the middle of the metal front bumper to measure the position of bolt holes and the flatness of the weld surface. When the second motor 39 is activated, it drives the worm gear 38 to rotate, which drives the worm gear 37 to rotate, thereby realizing the rotation of the rotating shaft 33. The rotation of the rotating shaft 33 drives the gear 34 to rotate. Since the gear 34 and the gear ring 35 mesh, the rotation of the gear ring 35 drives the convex seat 32 to rotate, realizing the angle adjustment of the convex seat 32, so that the measuring head 4 can perform contour measurement on the side of the middle of the front bumper.
[0033] 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.
[0034] Please see Figures 1-5This utility model provides a technical solution: the vertical moving component 2 includes a support 21, a vertical seat 22 is installed inside the support 21, an electric slide rail 23 is installed inside the vertical seat 22, an electric slider 24 is slidably connected to the outside of the electric slide rail 23, and the bottom end of the electric slider 24 is fixedly connected to the upper end of the connecting seat 31. The horizontal moving component 1 includes a horizontal seat 11, a lead screw 12 is rotatably connected inside the horizontal seat 11, and a slide block 13 is threadedly connected to the outside of the lead screw 12. A groove 14 is formed at the upper end of the horizontal seat 11, and the upper end of the slide block 13 extends into the groove 14. The outer wall of the upper end of the slide block 13 slides in cooperation with the inner wall of the groove 14. The top surface of the slide block 13 is fixedly connected to the bottom end of the support 21. A first motor 15 is installed on one side, and the output end of the first motor 15 is connected to the lead screw 12. Mounting buckles 16 are installed at the four outer corners of the transverse seat 11. Through the cooperation of the electric slide rail 23 and the electric slider 24, when the electric slider 24 moves on the electric slide rail 23, it is convenient to drive the adjustment component 3 and the measuring head 4 to move vertically. When the first motor 15 is started, it is convenient to drive the lead screw 12 to rotate, so that the slide seat 13 with its external thread connection moves horizontally under the sliding action with the slide groove 14. Through the cooperation of the transverse movement component 1 and the vertical movement component 2, a comprehensive contour measurement of the middle part of the front bumper is performed. By setting the mounting buckles 16, it is convenient to install the transverse seat 11 on the contour gauge by bolt fasteners.
[0035] Specifically, the working principle of this type of front bumper center section conformal measuring head is as follows: During use, the transverse seat 11 is installed on the conformal measuring head using bolts and fasteners. Then, the front bumper is placed on the conformal measuring head. When conformal measurement of the center section of a plastic front bumper is required, a non-contact, comprehensive scan of the center section is performed using a 3D scanner 43 and a laser displacement sensor 42. Since plastic is a soft material, non-contact conformal measurement avoids damage to the surface of the center section of the plastic front bumper. When conformal measurement of the center section of a metal front bumper is required, the hydraulic rod 310 is activated, allowing its movable end to push downwards. The second mounting base 44 is moved so that the coordinate measuring machine 45 and the contact probe 46 come into contact with the surface of the metal front bumper to measure the flatness of the welded surface. The metal front bumper is contoured by contact measurement. When the electric slider 24 moves on the electric slide rail 23, it facilitates the vertical movement of the driving adjustment component 3 and the measuring head 4. When the first motor 15 is started, it facilitates the rotation of the lead screw 12, so that the slide block 13 with its external thread connection moves horizontally under the sliding action with the slide groove 14. Through the cooperation of the horizontal movement component 1 and the vertical movement component 2, a comprehensive contour measurement of the middle part of the front bumper is performed.
Claims
1. A contour measuring head for the middle section of a front bumper, characterized in that, The device includes a horizontal moving component (1), a vertical moving component (2), an adjusting component (3), and a measuring head (4). The vertical moving component (2) is located above the horizontal moving component (1), the adjusting component (3) is located below one end of the vertical moving component (2), and the measuring head (4) is located below the adjusting component (3). The horizontal moving component (1) is used to drive the vertical moving component (2) to move left and right, the vertical moving component (2) is used to drive the adjusting component (3) to move back and forth, the adjusting component (3) is used to adjust the angle of the measuring head (4), and the measuring head (4) is used to perform contour measurement on plastic or metal front bumpers. The measuring head (4) includes a first mounting base (41) and a second mounting base (44). The bottom end of the first mounting base (41) has a pair of first circular holes, and a laser displacement sensor (42) and a three-dimensional scanner (43) are respectively installed inside the pair of first circular holes. The bottom end of the second mounting base (44) has a second circular hole, and a coordinate measuring machine (45) is installed inside the second circular hole.
2. The front bumper center inspection fixture contour measuring head according to claim 1, characterized in that, A contact probe (46) is installed at the center of the bottom end of the coordinate measuring machine (45).
3. The front bumper center inspection fixture contour measuring head according to claim 2, characterized in that, The adjusting component (3) includes a connecting seat (31), and a convex seat (32) is rotatably connected to the inside of the connecting seat (31) near the bottom end. One side of the bottom end of the convex seat (32) is fixedly connected to the upper end of the first mounting seat (41). A hydraulic rod (310) is installed on the upper end of the convex seat (32) on the side away from the first mounting seat (41). The movable end of the hydraulic rod (310) passes through the convex seat (32), and the movable end of the hydraulic rod (310) is fixedly connected to the top surface of the second mounting seat (44).
4. The front bumper center inspection fixture contour measuring head according to claim 3, characterized in that, The upper end of the convex seat (32) is fitted with a toothed ring (35), and the interior of the connecting seat (31) is rotatably connected to the upper end of the convex seat (32) with a rotating shaft (33). The rotating shaft (33) is fitted with a gear (34), and the gear (34) meshes with the toothed ring (35).
5. A front bumper center inspection fixture contour measuring head according to claim 4, characterized in that, A power box (36) is installed on the outer wall of the connecting seat (31). One end of the rotating shaft (33) extends through the convex seat (32) into the interior of the power box (36) and is fitted with a worm gear (37). A worm (38) is rotatably connected inside the power box (36). The worm (38) and the worm gear (37) mesh with each other. A second motor (39) is installed on the back of the power box (36). The output end of the second motor (39) is connected to the worm (38) for transmission.
6. The front bumper center inspection fixture contour measuring head according to claim 1, characterized in that, The vertical moving component (2) includes a support (21), a vertical seat (22) is installed inside the support (21), an electric slide rail (23) is installed inside the vertical seat (22), an electric slider (24) is slidably connected to the outside of the electric slide rail (23), and the bottom end of the electric slider (24) is fixedly connected to the upper end of the connecting seat (31).
7. A front bumper center inspection fixture contour measuring head according to claim 1, characterized in that, The lateral moving assembly (1) includes a lateral seat (11), a lead screw (12) is rotatably connected inside the lateral seat (11), a slide block (13) is threadedly connected to the outside of the lead screw (12), a slide groove (14) is provided at the upper end of the lateral seat (11), the upper end of the slide block (13) extends into the interior of the slide groove (14), and the upper outer wall of the slide block (13) slides in cooperation with the inner wall of the slide groove (14), the top surface of the slide block (13) is fixedly connected to the bottom end of the support (21), a first motor (15) is installed on one side of the outer wall of the lateral seat (11), and the output end of the first motor (15) is connected to the lead screw (12) for transmission.
8. A front bumper center inspection fixture contour measuring head according to claim 7, characterized in that, Mounting buckles (16) are installed at the four outer corners of the transverse seat (11).