Support for detection and workpiece detection apparatus

Abstract

The utility model discloses a kind of detection support and workpiece detection equipment, belong to product detection technical field.It is to support that detection support includes: base and calibration piece, base is equipped with support surface;Calibration piece is movably connected in the side of base equipped with support surface, calibration piece is equipped with at least two through slots, at least two through slots are along the direction of calibration piece towards base and penetrate calibration piece, each through slot is formed with the mounting space for placing workpiece by surrounding with support surface, the inner wall of each through slot is arranged and spaced apart from the outer circumferential wall of workpiece by surrounding the outer circumferential wall of workpiece one to one;Wherein, calibration piece is configured to be able to move relative to base, when calibration piece moves, the inner wall of each through slot and corresponding workpiece abut to drive workpiece to move.The utility model realizes the unity of the placement posture of all workpieces, ensures that all workpieces are placed neatly before detection, facilitates subsequent workpiece detection operation, improves the detection efficiency and detection accuracy of workpiece.

Description

Technical Field

[0001] This utility model relates to the field of product testing technology, and in particular to a testing bracket and workpiece testing equipment. Background Technology

[0002] In related technologies, in order to efficiently complete visual inspection or data measurement of a large number of workpieces, the workpieces are often laid out in large batches at intervals on the workstation awaiting inspection and measurement. However, since multiple workpieces are placed sequentially, it is difficult to ensure that the placement posture of each workpiece is completely consistent, resulting in multiple workpieces being placed unevenly on the workstation, increasing the difficulty of inspection and measurement, and reducing work 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 testing bracket that enables the uniformity of the placement posture of all workpieces, ensuring that all workpieces are neatly arranged before testing.

[0004] This utility model also proposes a workpiece inspection device that includes the above-mentioned inspection bracket.

[0005] A testing bracket according to a first aspect of the present invention includes: a base and a calibration component. The base has a support surface. The calibration component is movably connected to one side of the base where the support surface is located. The calibration component has at least two through slots, which penetrate the calibration component along the direction of the calibration component toward the base. Each through slot and the support surface enclose an installation space for placing a workpiece. The inner wall of each through slot is arranged around the outer peripheral wall of the workpiece and spaced apart from the outer peripheral wall of the workpiece. The calibration component is configured to be movable relative to the base. When the calibration component moves, the inner wall of each through slot abuts against the corresponding outer peripheral wall of the workpiece to drive the workpiece to move.

[0006] The detection bracket according to the embodiment of this utility model has at least the following beneficial effects:

[0007] The detection bracket of this utility model forms an installation space for placing workpieces by cooperating with the support surface of the base and the through groove of the calibration component. Multiple workpieces can be installed in the installation space one-to-one, and the inner wall of each through groove surrounds the outer peripheral wall of the workpiece placed therein, and is spaced apart from the outer peripheral wall of the workpiece. By driving the calibration component to move, the inner wall of each through groove abuts against the corresponding workpiece and drives the workpiece to move. The calibration component drives all workpieces to move synchronously, so that all workpieces are pushed to a predetermined uniform position and posture, realizing the uniformity of the placement posture of all workpieces. This ensures that all workpieces are neatly placed before detection, solves the problem of inconsistent posture and uneven placement of multiple workpieces before detection, facilitates subsequent workpiece detection operations, and improves the detection efficiency and accuracy of workpieces.

[0008] According to some embodiments of the present invention, the through groove is constructed as a square groove, and the inner wall of the through groove is provided with a first wall surface and a second wall surface. The first wall surface is arranged along a first direction, and the second wall surface is arranged along a second direction. The first direction is perpendicular to the second direction. The calibration component can move along a third direction. The third direction is arranged at an angle to the first direction and at an angle to the second direction. When the calibration component moves, the first wall surface and the second wall surface respectively fit against the workpiece to drive the workpiece to move along the third direction.

[0009] According to some embodiments of this utility model, the minimum distance between the end of the workpiece away from the base and the end of the through groove near the base is L, and the depth of the through groove is H, satisfying: L / H≥0.5.

[0010] According to some embodiments of this utility model, on the projection plane perpendicular to the direction of the calibration component toward the base, the area of ​​the projected workpiece is a, and the area of ​​the projected through groove is b, satisfying: 0.8≤a / b≤0.9.

[0011] According to some embodiments of the present invention, the detection bracket further includes a guide assembly, which includes a slider, a guide rail, and a stop member. The guide rail is connected to the base and is arranged along the third direction. The slider is connected to the calibration member and slidably connected to the guide rail. Two stop members are provided, and the two stop members are spaced apart along the third direction. The slider can move between the two stop members.

[0012] According to some embodiments of the present invention, the guide assembly is provided in two sets, and the two sets of guide assemblies are symmetrically arranged along the third direction.

[0013] According to some embodiments of the present invention, the base is provided with a recess, the recess and the calibration component surround to form an installation cavity, the guide component is installed in the installation cavity, and the bottom wall of the recess is provided with at least two positioning posts, the at least two positioning posts being arranged circumferentially along the guide rail.

[0014] According to some embodiments of the present invention, the support surface is provided with a first limiting hole with an opening facing the calibration component, the calibration component is provided with a second limiting hole corresponding to the limiting hole, and the detection bracket further includes a limiting member, the limiting member being detachably inserted through the second limiting hole and the first limiting hole, the limiting member being used to restrict the movement of the calibration component.

[0015] According to some embodiments of the present invention, the detection bracket further includes a driving device, which is connected to the calibration element to drive the calibration element to move.

[0016] The workpiece inspection device according to a second aspect of the present invention includes the inspection bracket described in the first aspect embodiment.

[0017] The workpiece inspection device according to the embodiments of this utility model has at least the following beneficial effects:

[0018] The workpiece inspection equipment of this utility model adopts the inspection bracket of the first aspect embodiment. An installation space for placing workpieces is formed by the cooperation of the base's support surface and the through-slot of the calibration component. Multiple workpieces can be installed in the installation space in a one-to-one correspondence. The inner wall of each through-slot surrounds the outer peripheral wall of the workpiece placed therein, and is spaced apart from the outer peripheral wall of the workpiece. By driving the calibration component to move, the inner wall of each through-slot abuts against the corresponding workpiece, driving the workpiece to move. The calibration component drives all workpieces to move synchronously, pushing all workpieces to a predetermined uniform position and posture. This achieves uniformity in the placement posture of all workpieces, ensuring that all workpieces are neatly placed. It solves the problem of inconsistent or uneven placement of multiple workpieces before inspection, reduces the operational difficulty of subsequent inspection operations, and thus improves the inspection efficiency and accuracy of the workpiece inspection equipment.

[0019] 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

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0021] Figure 1 This is a schematic diagram of the structure of a detection bracket according to an embodiment of the present invention;

[0022] Figure 2 This is an exploded view of a detection bracket according to an embodiment of the present invention;

[0023] Figure 3 This is a top view of the detection bracket after calibration, according to an embodiment of the present invention.

[0024] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;

[0025] Figure 5 This is a top view of the testing bracket during the calibration process according to an embodiment of the present invention;

[0026] Figure 6 for Figure 5 A magnified view of a section at point B in the middle;

[0027] Figure 7 This is a top view of the testing bracket during the calibration process according to another embodiment of the present invention;

[0028] Figure 8 for Figure 7 A magnified view of a section at point C;

[0029] Figure 9 This is a partial cross-sectional view of a detection bracket according to an embodiment of the present invention.

[0030] Icon labels:

[0031] Test bracket 1000;

[0032] Base 100; Support surface 110; First limiting hole 111; Recess 120; Positioning post 121; Mounting cavity 130;

[0033] Calibration component 200; through groove 210; first wall surface 211; second wall surface 212; second limiting hole 220;

[0034] Installation space: 300; Workpiece: 310;

[0035] Guide assembly 400; slider 410; guide rail 420; stop component 430;

[0036] Limiting component 500. Detailed Implementation

[0037] 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.

[0038] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the 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.

[0039] 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.

[0040] 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.

[0041] In industrial production, a large number of workpieces typically require visual inspection or data measurement to ensure product quality and compliance with specifications. To efficiently perform these inspections, workpieces are often laid out in large batches at intervals on workstations awaiting inspection and measurement. However, since multiple workpieces are placed sequentially, it is difficult to ensure that each workpiece's orientation is completely consistent. For example, workpieces may exhibit angular misalignment or positional deviations, resulting in uneven placement on the workstations. This increases the difficulty of inspection and measurement, reduces efficiency and accuracy, and ultimately increases the overall production time.

[0042] To address the aforementioned problems, some embodiments of this utility model propose a detection bracket 1000, suitable for workpiece detection equipment. This bracket enables uniform placement of all workpieces 310, ensuring that all workpieces 310 are neatly arranged before detection. See details below. Figures 1 to 9 The test bracket 1000 is described in the figure.

[0043] Reference Figure 1 and Figure 2 As shown in this embodiment of the invention, the testing bracket 1000 includes a base 100 and a calibration member 200. In one example, the upper side of the base 100 is provided with a horizontally arranged support surface 110, thereby enabling multiple workpieces 310 to be horizontal. The calibration member 200 is movably connected to the side of the base 100 where the support surface 110 is provided. In this embodiment, the calibration member 200 and the base 100 are arranged at intervals in the vertical direction, and the calibration member 200 can slide relative to the base 100 in the horizontal direction.

[0044] Specifically, in combination Figure 3 and Figure 4 It is understood that in this embodiment of the present invention, the calibration member 200 is provided with at least two through slots 210, and the at least two through slots 210 penetrate the calibration member 200 in the direction toward the base 100. For ease of description, the following description assumes that multiple through slots 210 are provided. In this embodiment, the through slots 210 penetrate the calibration member 200 in the vertical direction. Based on this, the through slots 210 and the support surface 110 enclose an installation space 300 for placing the workpiece 310, and each installation space 300 can accommodate the workpiece 310.

[0045] Continue to refer to Figure 4 As shown, in this embodiment of the present invention, the through groove 210 can be designed as a polygon or a curve according to the formation of the workpiece 310, and its size is at least larger than the workpiece 310 to accommodate the workpiece 310 and provide space for the movement of the workpiece 310. Specifically, in this embodiment, the inner wall of each through groove 210 is arranged around the outer peripheral wall of the workpiece 310 in a corresponding manner and is spaced apart from the outer peripheral wall of the workpiece 310.

[0046] It is understood that in this embodiment of the present invention, after the workpieces 310 are placed one by one into the respective installation spaces 300, the calibration component 200 can move relative to the base 100, and the inner wall of each through groove 210 abuts against the corresponding workpiece 310 to drive the workpiece 310 to move. Specifically, during the movement of the calibration component 200, the inner wall of the through groove 210 gradually approaches the workpiece 310, and through contact, a pushing force is applied to drive all workpieces 310 to move together for a certain distance. During this movement, all through grooves 210 act synchronously on the corresponding workpieces 310, thereby pushing all workpieces 310 to a predetermined uniform position and posture, thus realizing batch calibration.

[0047] The detection bracket 1000 of this utility model forms an installation space 300 for placing workpieces 310 by the cooperation of the support surface 110 of the base 100 and the through groove 210 of the calibration component 200. Multiple workpieces 310 can be installed in the installation space 300 in a one-to-one correspondence. The inner wall of each through groove 210 is set around the outer peripheral wall of the workpiece 310 placed therein and is spaced apart from the outer peripheral wall of the workpiece 310. By driving the calibration component 200 to move, the inner wall of each through groove 210 abuts against the corresponding workpiece 310 and drives the workpiece 310 to move. The calibration component 200 drives all workpieces 310 to move synchronously, so that all workpieces 310 are pushed to a predetermined uniform position and posture, realizing the uniformity of the placement posture of all workpieces 310. This ensures that all workpieces 310 are neatly placed before detection, solves the problem of inconsistent and uneven placement of multiple workpieces 310 before detection, facilitates subsequent workpiece 310 detection operations, and improves the detection efficiency and accuracy of workpieces 310.

[0048] Reference Figure 5 and Figure 6 As shown in this embodiment of the present invention, the workpiece 310 has a square structure. Based on this, the through groove 210 is constructed as a square groove, which refers to a groove structure with four inner wall surfaces, each of which is perpendicular to the others. The inner wall of the through groove 210 is provided with two first wall surfaces 211 and two second wall surfaces 212. The first wall surfaces 211 extend along a first direction, and the second wall surfaces 212 extend along a second direction, with the first direction perpendicular to the second direction.

[0049] Combination Figure 7 and Figure 8 It is understood that in this embodiment of the invention, the calibration member 200 is capable of moving along a third direction, and this third direction is set at an angle to both the first and second directions. In other words, the motion trajectory of the calibration member 200 can be decomposed into displacement components in the first and second directions. In one example, the angles between the third and first directions are 45° each. When the calibration member 200 moves, the first wall surface 211 and the second wall surface 212 respectively abut against the workpiece 310 to drive the workpiece 310 to move along the third direction.

[0050] Specifically, when the calibration component 200 moves along a third direction, the first wall surface 211 contacts the side wall of the workpiece 310 and applies a force along the first direction, while the second wall surface 212 contacts the other side wall of the workpiece 310 and applies a force along the second direction. Since the third direction forms a non-orthogonal angle with both the first and second directions, the actual displacement of the workpiece 310 is decomposed into a composite motion of the first and second directions. During this process, the attitude deviation of the workpiece 310 is synchronously corrected through the coordinated adjustment of the two orthogonal directions, eliminating the need for step-by-step position calibration in a single direction, thereby achieving the angle calibration of the workpiece 310.

[0051] Reference Figure 9 As shown, in this embodiment of the present invention, the minimum distance between the end of the workpiece 310 away from the base 100 and the end of the through groove 210 near the base 100 is L, and the depth of the through groove 210 is H, satisfying: L / H≥0.5. It can be understood that in this embodiment, the minimum distance between the end of the workpiece 310 away from the base 100 and the end of the through groove 210 near the base 100 can refer to the vertical distance between the upper end of the workpiece 310 and the lower opening of the through groove 210, and the depth of the through groove 210 can specifically refer to the length of the through groove 210 in the vertical direction.

[0052] In this embodiment of the present invention, when the workpiece 310 is placed in the installation space 300, the ratio of L to H determines the size of the contact area between the inner peripheral wall of the through groove 210 and the side wall of the workpiece 310. Based on this, this embodiment ensures that the inner peripheral wall of the through groove 210 has sufficient contact area with the workpiece 310 to drive the workpiece 310 to move, and at the same time, it enables the inner peripheral wall of the through groove 210 to fit more tightly against the side wall of the workpiece 310 to correct its placement angle.

[0053] Reference Figure 1 and Figure 2 As shown in this embodiment of the invention, on the projection plane perpendicular to the direction of the calibration component 200 toward the base 100, the projected area of ​​the workpiece 310 is 'a', and the projected area of ​​the through groove 210 is 'b', satisfying: 0.8 ≤ a / b ≤ 0.9. It can be understood that the projection area ratio refers to the area relationship between the planar projections of the workpiece 310 and the through groove 210 perpendicular to the moving direction of the calibration component 200. In this embodiment, when the ratio of the projected area of ​​the workpiece 310 to the projected area of ​​the through groove 210 is too small, the calibration component 200 needs to move a relatively long distance to achieve posture correction for all workpieces 310; when the ratio of the projected area of ​​the workpiece 310 to the projected area of ​​the through groove 210 is too large, the gap between the workpiece 310 and the inner peripheral wall of the through groove 210 is too small.

[0054] Based on this, this embodiment reasonably limits a / b so that the lateral dimension of the through groove 210 is controlled to be slightly larger than that of the workpiece 310. This avoids the workpiece 310 not having enough space to move and change its posture due to the small gap between the workpiece 310 and the inner peripheral wall of the through groove 210, and also avoids the workpiece 310 being too large, which would result in the calibration part 200 having to move too far.

[0055] Reference Figure 1 and Figure 2 As shown in this embodiment of the invention, the testing bracket 1000 further includes a guide assembly 400, which includes a slider 410, a guide rail 420, and a stop member 430. The guide rail 420 is connected to the base 100 and is arranged along a third direction, providing an axial guide path for the movement of the calibration member 200. The slider 410 is connected to the calibration member 200 and slidably connected to the guide rail 420, thereby limiting the movement direction of the calibration member 200 to the third direction and ensuring the accuracy of the movement direction of the calibration member 200. In addition, two stop members 430 are provided, spaced apart along the third direction and located at both ends of the guide rail 420 in the axial direction. They physically restrict the maximum stroke range of the slider 410, allowing the slider 410 to move between the two stop members 430, preventing the calibration member 200 from moving beyond its effective working range.

[0056] Reference Figure 2 and Figure 3 As shown, in this embodiment of the invention, the guide assembly 400 is provided in two sets, and the two sets of guide assemblies 400 are symmetrically arranged along a third direction. Specifically, in this embodiment, the two sets of guide assemblies 400 are arranged sequentially along a direction perpendicular to the third direction and are respectively connected to both sides of the calibration member 200. When the calibration member 200 is subjected to a driving force, the two sliders 410 of the two sets of guide assemblies 400 move synchronously along the third direction.

[0057] Understandably, due to the symmetrical layout, the sliding resistance of the sliders 410 and guide rails 420 on both sides is evenly distributed, avoiding torque offset caused by unilateral force. The constraint effect of guide rails 420 on sliders 410 forms symmetrical guiding forces on both sides, counteracting the lateral deflection torque that may be generated during the movement of calibration component 200. This prevents the calibration component 200 from tilting or jamming due to uneven force, thus affecting the positioning accuracy of workpiece 310 and ensuring the straightness and stability of the movement trajectory of calibration component 200.

[0058] Reference Figure 1 and Figure 2As shown in this embodiment of the invention, the base 100 has a recess 120, which is a region formed by a downward indentation on the surface of the base 100. This recess can be achieved through milling or casting processes and is intended to accommodate the guide assembly 400. Specifically, in this embodiment, the recess 120 and the calibration member 200 are spaced apart vertically to form a mounting cavity 130. The guide assembly 400 is installed within the mounting cavity 130, specifically between the bottom wall of the recess 120 and the lower surface of the calibration member 200.

[0059] Continue to refer to Figure 1 and Figure 2 As shown in this embodiment of the invention, the bottom wall of the recess 120 is provided with at least two positioning posts 121. Each positioning post 121 is a columnar protrusion extending perpendicularly to the bottom wall of the recess 120. The at least two positioning posts 121 are spaced apart circumferentially along the guide rail 420. In one example, two positioning posts 121 are provided, respectively positioned on both sides of the guide rail 420 along its axial direction, thereby defining the installation position of the guide rail 420 and improving the positional accuracy of the guide assembly 400 during installation.

[0060] Reference Figure 1 and Figure 2 As shown in this embodiment of the invention, the support surface 110 is provided with a first limiting hole 111 with its opening facing the calibration member 200, and the calibration member 200 is provided with a second limiting hole 220 corresponding to the first limiting hole 111. Both the first limiting hole 111 and the second limiting hole 220 extend vertically. The detection bracket 1000 also includes a limiting member 500, which is detachably inserted through the second limiting hole 220 and the first limiting hole 111. The limiting member 500 is used to restrict the movement of the calibration member 200.

[0061] Understandably, when the calibration piece 200 moves to the predetermined position, the second limiting hole 220 on the calibration piece 200 and the first limiting hole 111 on the support surface 110 are coaxially aligned. At this time, the limiting piece 500 is inserted along the common axis of the two holes, so that the rod of the limiting piece 500 passes through both the calibration piece 200 and the base 100, forming a rigid constraint perpendicular to the direction of movement of the calibration piece 200. When readjustment is required, the constraint can be released simply by pulling out the limiting piece 500, at which point the calibration piece 200 resumes its sliding function.

[0062] In this embodiment of the invention, the detection bracket 1000 further includes a driving device, which is connected to the calibration component 200 to drive the calibration component 200 to move. It is understood that the driving device refers to an actuator capable of outputting mechanical power, specifically a servo motor, stepper motor, or pneumatic push rod, whose stroke and speed are controlled by electrical or pneumatic signals. In this embodiment, when the driving device receives a control signal, its output shaft generates a linear displacement and pushes the calibration component 200 to move along a preset trajectory. During this process, the interaction force between the inner wall of the through groove 210 and the contact surface of the workpiece 310 is precisely controlled by the driving device, thereby improving the accuracy of the workpiece 310's posture calibration.

[0063] An embodiment of this utility model also proposes a workpiece inspection device, including the inspection bracket 1000 described in the above embodiment.

[0064] The workpiece inspection equipment of this utility model embodiment adopts the inspection bracket 1000 of the above embodiment. The support surface 110 of the base 100 and the through groove 210 of the calibration component 200 cooperate to form an installation space 300 for placing workpieces 310. Multiple workpieces 310 can be installed in the installation space 300 in a one-to-one correspondence. The inner wall of each through groove 210 is set around the outer peripheral wall of the workpiece 310 placed therein, and is spaced apart from the outer peripheral wall of the workpiece 310. Then, by driving the calibration component 200 to move, the inner wall of each through groove 210 abuts against the corresponding workpiece 310 and drives the workpiece 310 to move. The calibration component 200 drives all workpieces 310 to move synchronously, so that all workpieces 310 are pushed to a predetermined uniform position and posture, realizing the uniformity of the placement posture of all workpieces 310, ensuring that all workpieces 310 are placed neatly, solving the problem of inconsistent placement posture and uneven placement of multiple workpieces 310 before inspection, reducing the operational difficulty of subsequent inspection operations of the workpiece inspection equipment, and thus improving the inspection efficiency and inspection accuracy of the workpiece inspection equipment.

[0065] Since the workpiece inspection equipment adopts all the technical solutions of the inspection bracket 1000 in the above embodiments, it has at least all the beneficial effects brought about by the technical solutions in the above embodiments, which will not be repeated here.

[0066] 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 testing stent, characterized in that, include: The base has a supporting surface; A calibration component is movably connected to one side of the base where the support surface is provided. The calibration component has at least two through slots, which penetrate the calibration component in the direction toward the base. Each through slot and the support surface form an installation space for placing a workpiece. The inner wall of each through slot is arranged around the outer peripheral wall of the workpiece in a corresponding manner and is spaced apart from the outer peripheral wall of the workpiece. The calibration element is configured to move relative to the base, and when the calibration element moves, the inner wall of each through slot abuts against the outer peripheral wall of the corresponding workpiece to drive the workpiece to move.

2. The detection bracket according to claim 1, characterized in that, The through groove is constructed as a square groove. The inner wall of the through groove is provided with a first wall surface and a second wall surface. The first wall surface is arranged along a first direction, and the second wall surface is arranged along a second direction. The first direction is perpendicular to the second direction. The calibration component can move along a third direction. The third direction is arranged at an angle to the first direction and at an angle to the second direction. When the calibration component moves, the first wall surface and the second wall surface respectively fit against the workpiece to drive the workpiece to move along the third direction.

3. The detection bracket according to claim 1 or 2, characterized in that, The minimum distance between the end of the workpiece furthest from the base and the end of the through groove closest to the base is L, and the depth of the through groove is H, satisfying: L / H≥0.

5.

4. The detection bracket according to claim 3, characterized in that, On the projection plane perpendicular to the direction of the calibration piece toward the base, the area of ​​the projected workpiece is a, and the area of ​​the projected through groove is b, satisfying: 0.8≤a / b≤0.

9.

5. The detection bracket according to claim 2, characterized in that, The testing bracket also includes a guide assembly, which includes a slider, a guide rail, and a stop member. The guide rail is connected to the base and is arranged along the third direction. The slider is connected to the calibration member and slidably connected to the guide rail. There are two stop members, which are spaced apart along the third direction. The slider can move between the two stop members.

6. The detection bracket according to claim 5, characterized in that, The guide components are provided in two sets, and the two sets of guide components are symmetrically arranged along the third direction.

7. The detection bracket according to claim 5, characterized in that, The base has a recess, which, together with the calibration component, forms an installation cavity. The guide assembly is installed in the installation cavity. The bottom wall of the recess has at least two positioning posts, which are spaced apart circumferentially along the guide rail.

8. The detection bracket according to claim 1, characterized in that, The support surface is provided with a first limiting hole with an opening facing the calibration component. The calibration component is provided with a second limiting hole corresponding to the limiting hole. The detection bracket also includes a limiting member, which is detachably inserted through the second limiting hole and the first limiting hole. The limiting member is used to restrict the movement of the calibration component.

9. The detection bracket according to claim 1, characterized in that, The testing bracket also includes a driving device, which is connected to the calibration element to drive the calibration element to move.

10. A workpiece inspection device, characterized in that, Includes the testing bracket as described in any one of claims 1 to 9.

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