Workpiece radian detection device
By designing a workpiece curvature detection device, the positioning components and measuring components are used to quickly determine whether the workpiece curvature meets the requirements. This solves the problems of large differences and long time consumption in the existing technology due to the lack of a reference, and achieves efficient and accurate curvature detection.
Patent Information
- Application Number
- CN202423219077.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-24
AI Technical Summary
Existing technologies for detecting the curvature of automotive anti-collision beams suffer from problems such as lack of a benchmark, large discrepancies, long processing time, and low efficiency.
A workpiece curvature detection device is designed, including a frame, a first positioning component, a second positioning component, a clamping component, a reference block, and a measuring component. The workpiece is positioned and clamped by the first and second positioning components, and the gap between the workpiece and the reference block is measured by the measuring component to quickly determine whether the curvature meets the requirements.
It achieves rapid and convenient workpiece curvature detection, is more efficient than coordinate measuring machine (CMM) detection, has a unified positioning reference, and provides accurate and reliable detection results.
Smart Images
Figure CN223500324U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of quality inspection technology, and in particular to a workpiece curvature detection device. Background Technology
[0002] The automotive crash beam has welded matching surfaces with high requirements for curvature. The automotive crash beam is usually formed by bending a straight beam. Therefore, after bending the automotive crash beam, the curvature needs to be detected. Conventional methods use a caliper or coordinate measuring machine (CMM) for detection. However, the following drawbacks exist: caliper detection has no reference and the detection difference is large; CMM detection is time-consuming and has low detection efficiency. Utility Model Content
[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a workpiece curvature detection device, which can quickly detect whether the curvature of a workpiece meets the requirements.
[0004] A workpiece curvature detection device according to one embodiment of the present invention includes a frame, a first positioning component, a second positioning component, a clamping component, a reference block, and a measuring component. The first positioning component is disposed on the frame, and a first arc-shaped reference surface is provided on its upper part to support one end of the workpiece. The second positioning component is disposed on the frame, and a second arc-shaped reference surface is provided on its upper part to support the other end of the workpiece. The clamping component is disposed on the frame and is used to position and clamp the workpiece placed on the first positioning component and the second positioning component. The reference block is disposed on the frame and is located between the first positioning component and the second positioning component. The measuring component is used to measure the gap between the reference block and the workpiece.
[0005] The workpiece curvature detection device according to the embodiments of this utility model has at least the following beneficial effects: The workpiece curvature detection device of the above embodiment operates as follows: the workpiece is placed in the first positioning component and the second positioning component, then the workpiece is clamped using the clamping component, and then the gap between the workpiece and the reference block is measured using the measuring component to determine whether it meets the requirements, thus completing the detection. Each test uses the first positioning component and the second positioning component to position the workpiece, ensuring a unified positioning reference. Measuring the gap between the workpiece and the reference block using the measuring component determines whether the curvature of the workpiece is qualified, making it faster and more convenient than coordinate measuring machine (CMM) detection.
[0006] According to some embodiments of the present invention, the clamping assembly includes a lateral clamping unit for limiting the translation of the workpiece and a vertical clamping unit for limiting the upward movement of the workpiece.
[0007] According to some embodiments of the present invention, the lateral clamping unit includes a first baffle and a first pusher, a second baffle and a second pusher, both disposed on the frame. The first baffle and the first pusher are disposed opposite to each other. The first pusher has a first working part that can extend and retract. The second baffle and the second pusher are disposed opposite to each other. The second pusher has a second working part that can extend and retract. The movement directions of the first working part and the second working part are arranged crosswise.
[0008] According to some embodiments of the present invention, both the first pushing member and the second pushing member are configured as clamps.
[0009] According to some embodiments of the present invention, the vertical clamping unit has a retractable third working part, which is located above the first positioning component and / or the second positioning component.
[0010] According to some embodiments of the present invention, both the first positioning component and the second positioning component include at least one protrusion disposed on the frame, the top end of the protrusion of the first positioning component is provided with a first arc-shaped reference surface, and the top end of the protrusion of the second positioning component is provided with a second arc-shaped reference surface.
[0011] According to some embodiments of the present invention, the measuring element is configured as a go / no-go gauge, and the frame is provided with a slot for placing the go / no-go gauge.
[0012] According to some embodiments of this utility model, the measuring element is configured as a gap gauge.
[0013] According to some embodiments of the present invention, the frame is provided with length scale lines along the width direction of the workpiece.
[0014] According to some embodiments of the present invention, an auxiliary block is provided on the frame, the auxiliary block protrudes from the frame, the top of the auxiliary block is provided with an arc surface, and the length scale line is provided on the arc surface.
[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of one embodiment of the present utility model;
[0017] Figure 2 This is a schematic diagram of the workpiece after being clamped according to this utility model;
[0018] Figure 3 yes Figure 2 Enlarged view of a portion of point A in the middle;
[0019] Figure 4 yes Figure 1 Enlarged view of a section at point B in the middle;
[0020] Figure 5 yes Figure 1 Enlarged view of a section at point C.
[0021] Figure label:
[0022] 100 racks;
[0023] First positioning component 200; First arc-shaped reference surface 210;
[0024] Second positioning component 300; Second arc-shaped reference surface 310;
[0025] First baffle 410; first pusher 420; second baffle 430; second pusher 440; first inclined surface 450; positioning surface 460; first working part 470; second working part 480; third working part 490;
[0026] Reference block 500; clearance 510;
[0027] Measuring part 600;
[0028] Length scale line 700; auxiliary block 710;
[0029] Workpiece 800. Detailed Implementation
[0030] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0031] In the description of this utility model, it should be understood that the orientation descriptions, such as left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0032] In the description of this utility model, the use of "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features or the order of the technical features.
[0033] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0034] like Figure 2 As shown, for ease of explanation, the workpiece 800 in this embodiment is an example of an automobile anti-collision beam. The cross-section of the automobile anti-collision beam is roughly rectangular, formed by bending a straight beam, and the whole beam is curved into an arc shape after bending.
[0035] like Figures 1 to 5 As shown, this utility model provides a workpiece 800 arc detection device, including a frame 100, a first positioning component 200, a second positioning component 300, a clamping component, a reference block 500, and a measuring component 600. A first positioning component 200 is disposed on the frame 100. The upper part of the first positioning component 200 has a first arc-shaped reference surface 210. The workpiece 800 is placed with its upper surface arched upwards. The first arc-shaped reference surface 210 mates with the inner surface of the workpiece 800 to support one end of the workpiece 800. A second positioning component 300 is disposed on the frame 100. The upper part of the second positioning component 300 has a second arc-shaped reference surface 310. The second arc-shaped reference surface 310 mates with the inner surface of the workpiece 800 to support the other end of the workpiece 800. A clamping component is disposed on the frame 100 and is used to position and clamp the workpiece 800 placed on the first positioning component 200 and the second positioning component 300. A reference block 500 is disposed on the frame 100 and is located between the first positioning component 200 and the second positioning component 300. A measuring element 600 is used to measure the gap 510 between the reference block 500 and the workpiece 800.
[0036] The operation steps of the workpiece 800 curvature detection device in the above embodiment are as follows: The workpiece 800 is placed in the first positioning component 200 and the second positioning component 300. Then, the clamping component clamps the workpiece 800 according to a predetermined position as required. Next, the measuring component 600 measures whether the gap 510 between the workpiece 800 and the reference block 500 meets the requirements, thus completing the detection. Each test uses the first positioning component 200 and the second positioning component 300 to position the workpiece 800, ensuring a unified positioning reference. Measuring the gap 510 between the workpiece 800 and the reference block 500 with the measuring component 600 determines whether the curvature of the workpiece 800 is qualified, making it faster and more convenient than coordinate measuring machine (CMM) testing.
[0037] like Figures 1 to 3As shown, specifically, according to some embodiments of this utility model, the measuring component 600 is set as a go / no-go gauge, which has a go end and a no-go end. The size of the go end is smaller than that of the no-go end. For example, in this embodiment, the thickness of the go end is 4.5mm and the thickness of the no-go end is 5.5mm. When the go end can be inserted into the gap 510 between the workpiece 800 and the reference block 500, and the no-go end cannot be inserted into the gap 510 between the workpiece 800 and the reference block 500, the amplitude of the workpiece 800 meets the requirements. When the go end cannot be inserted into the gap 510 between the workpiece 800 and the reference block 500, or when the no-go end can be inserted into the gap 510 between the workpiece 800 and the reference block 500, the amplitude of the workpiece 800 does not meet the requirements. It can be seen that by using a go / no-go gauge for inspection, it is only necessary to observe whether the go end and the no-go end can be inserted into the gap 510 between the workpiece 800 and the reference block 500 to determine whether the curvature of the workpiece 800 meets the requirements. It is not necessary to read specific measurement values, which is very convenient and quick. To facilitate storage, in some embodiments of this utility model, the frame 100 is provided with a slot for placing go and no-go gauges. The slot has a certain degree of elasticity, and the go and no-go gauges can be clamped and positioned after being placed in the slot, reducing the occurrence of loss due to random placement of the go and no-go gauges.
[0038] It should be noted that the measuring component 600 is not limited to the embodiment using a go / no-go gauge. Other embodiments can also be adopted. For example, the measuring component 600 can be set as a gap gauge. The gap 510 between the workpiece 800 and the reference block 500 can be measured by the gap gauge, and then it can be determined whether the size of the gap 510 is within the qualified range. It can also be determined whether the curvature of the workpiece 800 meets the requirements.
[0039] like Figure 1 and Figure 2 As shown, in some embodiments of this utility model, the clamping assembly includes a lateral clamping unit for limiting the horizontal translation of the workpiece 800 and a vertical clamping unit for limiting the vertical movement of the workpiece 800. In this embodiment, the workpiece 800 is placed on the first positioning assembly 200 and the second positioning assembly 300, and by limiting the translational and upward movements of the workpiece 800, the workpiece 800 can be quickly positioned. Of course, it should be noted that the clamping assembly is not limited to the above embodiments; it can also clamp the workpiece 800 from other directions, such as from a plane inclined at 45 degrees relative to the horizontal plane. Specifically, the configuration can be adjusted according to the shape of the workpiece 800.
[0040] like Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, in some embodiments of this utility model, the lateral clamping unit includes a first baffle 410 and a first pusher 420, a second baffle 430 and a second pusher 440, all disposed on the frame 100. The first baffle 410 and the first pusher 420 are disposed opposite to each other. The first pusher 420 has a retractable first working part 470. The first baffle 410 is provided with a first inclined surface 450 that cooperates with the left end of the workpiece 800. The second baffle 430 and the second pusher 440 are disposed opposite to each other. The second baffle 430 is provided with a vertically oriented positioning surface 460. The second pusher 440 has a retractable second working part 480. The movement directions of the first working part 470 and the second working part 480 are intersected. In this embodiment, the first inclined surface 450, the positioning surface 460, the first arc-shaped reference surface 210, and the second arc-shaped reference surface 310 together provide a positioning reference for the workpiece 800. Based on the height of the reference block 500 and the acceptable range of the workpiece 800's curvature, the dimensions of the go / no-go gauge can be calculated, allowing for rapid measurement of the workpiece 800's curvature using the go / no-go gauge. This lateral clamping unit can quickly and accurately clamp the workpiece 800 laterally, resulting in high work efficiency.
[0041] In some embodiments of this utility model, the movement directions of the first working part 470 and the second working part 480 are arranged perpendicularly. For this purpose, the second working part 480 is provided with a second inclined surface that mates with the end face of the workpiece 800. Of course, it is understood that in other embodiments, the movement directions of the first working part 470 and the second working part 480 may not be perpendicular. As long as they are not arranged parallel, they can limit the workpiece 800 at multiple angles. The specific angles of the two can be adjusted according to actual needs.
[0042] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, in some embodiments of this utility model, the first pusher 420 and the second pusher 440 are both configured as clamps. Clamps are existing mature technologies and will not be described in detail here.
[0043] like Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, in some embodiments of this utility model, the vertical clamping unit has a retractable third working part 490. Two vertical clamping units are provided, with the two third working parts 490 located above the first positioning component 200 and the second positioning component 300. By cooperating with the first arc-shaped reference surface 210 and the second arc-shaped reference surface 310, the workpiece 800 can be clamped vertically. The alignment of the third working parts 490 with the first positioning component 200 and the second positioning component 300 reduces the squeezing of the workpiece 800 when clamping it, thus minimizing any impact on the workpiece 800's curvature. Therefore, this vertical clamping method clamps the workpiece 800 without affecting its curvature, ensuring detection accuracy.
[0044] Specifically, the vertical clamping unit can also be set as a clamp, which is a mature existing technology and will not be elaborated here.
[0045] It should be noted that a single vertical clamping unit can also be provided, which is located above the first positioning component 200 or the second positioning component 300, and can also achieve vertical clamping and positioning of the workpiece 800.
[0046] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, specifically, in some embodiments of this utility model, both the first positioning component 200 and the second positioning component 300 include two protrusions disposed on the frame 100. The first arc-shaped reference surface 210 is disposed on the top of the protrusion of the first positioning component 200, and the second arc-shaped reference surface 310 is disposed on the top of the protrusion of the second positioning component 300. The four protrusions are arranged in a rectangular shape. The first positioning component 200 and the second positioning component 300 described above have simple structures and can perform good positioning of the workpiece 800.
[0047] Of course, it is understandable that the first positioning component 200 can also have only one protrusion, as long as the width of the protrusion is sufficient to provide stable support for the workpiece 800. Similarly, the second positioning component 300 can also have only one protrusion, as long as the width of the protrusion is sufficient to provide stable support for the workpiece 800.
[0048] like Figure 1 , Figure 2 and Figure 4As shown, in some embodiments of this utility model, the second baffle 430 and the second pusher 440 clamp the workpiece 800 along the width direction of the workpiece 800. A length scale line 700 is provided on the frame 100 along the width direction of the workpiece 800. The starting position of the length scale line 700 is the same as the positioning surface 460 on the second baffle 430. Thus, the width of the workpiece 800 can be quickly read through the length scale line 700.
[0049] like Figure 1 , Figure 2 and Figure 4 As shown, in some embodiments of this utility model, an auxiliary block 710 is provided on the frame 100. The auxiliary block 710 protrudes from the frame 100 and has an arc surface on its top. A length scale line 700 is provided on the arc surface. In this way, the length scale line 700 on the auxiliary block 710 can be as close as possible to the lower part of the workpiece 800, thereby enabling the width of the workpiece 800 to be measured more quickly and accurately.
[0050] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0051] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.
Claims
1. A workpiece curvature detection device, characterized in that, include: Rack (100); A first positioning component (200) is disposed on the frame (100), and a first arc-shaped reference surface (210) is provided on the upper part of the first positioning component (200); One end of the workpiece (800) is used to support it; A second positioning component (300) is disposed on the frame (100). The upper part of the second positioning component (300) is provided with a second arc-shaped reference surface (310) for supporting the other end of the workpiece (800). A clamping assembly is disposed on the frame (100) for positioning and clamping the workpiece (800) placed on the first positioning assembly (200) and the second positioning assembly (300); A reference block (500) is disposed on the frame (100), and the reference block (500) is located between the first positioning component (200) and the second positioning component (300); A measuring element (600) is used to measure the gap (510) between the reference block (500) and the workpiece (800).
2. The workpiece curvature detection device according to claim 1, characterized in that, The clamping assembly includes a lateral clamping unit for limiting the translation of the workpiece (800) and a vertical clamping unit for limiting the upward movement of the workpiece (800).
3. The workpiece curvature detection device according to claim 2, characterized in that, The lateral clamping unit includes a first baffle (410) and a first pusher (420), a second baffle (430) and a second pusher (440) all disposed on the frame (100). The first baffle (410) and the first pusher (420) are disposed opposite to each other. The first pusher (420) has a retractable first working part (470). The second baffle (430) and the second pusher (440) are disposed opposite to each other. The second pusher (440) has a retractable second working part (480). The movement directions of the first working part (470) and the second working part (480) are arranged crosswise.
4. The workpiece curvature detection device according to claim 3, characterized in that, Both the first pusher (420) and the second pusher (440) are configured as clamps.
5. The workpiece curvature detection device according to claim 2, characterized in that, The vertical clamping unit has a retractable third working part (490) located above the first positioning component (200) and / or the second positioning component (300).
6. The workpiece curvature detection device according to claim 1, characterized in that, Both the first positioning component (200) and the second positioning component (300) include at least one protrusion disposed on the frame (100). The top end of the protrusion of the first positioning component (200) is provided with a first arc-shaped reference surface (210), and the top end of the protrusion of the second positioning component (300) is provided with a second arc-shaped reference surface (310).
7. The workpiece curvature detection device according to claim 1, characterized in that, The measuring element (600) is configured as a go / no-go gauge, and the frame (100) is provided with a slot for placing the go / no-go gauge.
8. The workpiece curvature detection device according to claim 1, characterized in that, The measuring element (600) is configured as a gap gauge.
9. The workpiece curvature detection device according to claim 1, characterized in that, The frame (100) is provided with length scale lines (700) along the width direction of the workpiece (800).
10. A workpiece curvature detection device according to claim 9, characterized in that, An auxiliary block (710) is provided on the frame (100). The auxiliary block (710) protrudes from the frame (100). The top of the auxiliary block (710) is provided with an arc surface, and the length scale line (700) is provided on the arc surface.