Positioning carrier and workpiece detection device

Abstract

The present invention relates to a positioning carrier and a workpiece detection device. The workpiece to be measured can be placed on a carrier and adsorbed by adsorption points. By opening or closing the adsorption holes of the corresponding adsorption points, the workpiece to be measured can be adsorbed by a group of three adsorption points arranged in a triangle. The workpiece to be measured is subjected to force at three points, so it can be stably supported on the carrier. Moreover, the anti-slip pad can increase the friction between the workpiece to be measured and the adsorption points. Therefore, each adsorption point only needs to provide a small adsorption force to provide a large lateral stabilizing force for the workpiece to be measured, thereby preventing the workpiece to be measured from sliding sideways. It can be seen that the above-mentioned positioning carrier can effectively prevent the workpiece from deforming while reliably fixing the workpiece.

Description

Technical Field

[0001] The present invention relates to the field of mechanical processing technology, and in particular to a positioning carrier and a workpiece detection device. Background Art

[0002] During the machining process, workpiece inspection is an essential process. During inspection, the workpiece must first be fixed on a positioning carrier, and then the positioning carrier drives the workpiece to translate and rotate, thereby achieving a full range of inspections on the workpiece.

[0003] At present, workpieces are generally fixed on the positioning carrier by the adsorption of suction cups or nozzles. However, some workpieces, such as 3D curved glass, are becoming thinner and thinner and have very smooth surfaces. Therefore, in order to prevent the workpiece from sliding sideways during translation and rotation, a larger adsorption force is required during the inspection process to keep the position of the workpiece stable. However, a larger adsorption force can easily cause the workpiece to deform. Summary of the invention

[0004] Based on this, it is necessary to provide a positioning carrier and a workpiece detection device that can reliably fix the workpiece and prevent the workpiece from deforming in order to address the above problems.

[0005] A positioning vehicle, comprising:

[0006] Support frame (110);

[0007] A carrier (120) is arranged on the support frame (110), wherein a plurality of adsorption points (121) capable of generating negative pressure are formed on the surface of the carrier (120), and the adsorption holes of each adsorption point (121) can be operably opened or closed; and

[0008] An anti-slip pad (130) covers the plurality of adsorption points (121), and the anti-slip pad (130) is provided with through holes respectively connected to the adsorption holes of each of the adsorption points (121);

[0009] The plurality of adsorption points (121) include at least one group of three adsorption points (121) whose connecting lines can enclose a triangle.

[0010] In one embodiment, a plurality of suction nozzles (140) are provided on the carrier (120), and each of the suction nozzles (140) forms a suction point (121), and a plurality of anti-slip pads (130) are respectively covered on the suction surface of the suction nozzle (140), and each of the anti-slip pads (130) is provided with the through hole.

[0011] In one embodiment, it further comprises a plurality of plugs (150), and the adsorption port of each adsorption point (121) is detachably blocked by the plug (150).

[0012] In one embodiment, the plurality of adsorption points (121) include a plurality of groups of connection lines that can enclose three adsorption points (121) in a triangle.

[0013] In one embodiment, the plurality of adsorption points (121) are arranged on the carrier (120) into three parallel rows.

[0014] In one embodiment, three mutually parallel air passages (122) are formed inside the carrier (120), and the adsorption holes of the adsorption points (121) located in the same row are all connected to the same air passage (122).

[0015] In one embodiment, it further includes a positioning component (160) and a pushing component (170), wherein the positioning component (160) is located at the edge of the carrier (120), and the pushing component (170) is used to push the workpiece to be measured located on the surface of the carrier (120) until it abuts against the positioning component (160).

[0016] In one embodiment, each of the adsorption points (121) can also generate positive pressure, and each of the adsorption points (121) can switch between a state of generating positive pressure and a state of generating negative pressure.

[0017] In one embodiment, the positioning assembly (160) is capable of abutting against the workpiece to be measured in a first direction and a second direction perpendicular to the first direction, and the pushing assembly (170) comprises:

[0018] Support plate (171);

[0019] A first driving member (172) is fixed to the support plate (171), a driving end of the first driving member (172) is provided with a moving block (173), and the first driving member (172) can drive the moving block (173) to extend and retract along a third direction, wherein the third direction is inclined toward the second direction relative to the first direction;

[0020] The roller (174) is elastically connected to the moving block (173) and is used to abut against the workpiece to be measured.

[0021] In one embodiment, the moving block (173) is formed with a first branch (1731) extending along the first direction and a second branch (1732) extending along the second direction, and the roller (174) is disposed on both the first branch (1731) and the second branch (1732).

[0022] A workpiece detection device, comprising:

[0023] Mounting seat (200);

[0024] A rotating assembly (300) disposed on the mounting seat (200); and

[0025] As described in any one of claims 1 to 11 above, the support frame (110) of the positioning carrier (100) is arranged at the rotating end of the rotating component (300).

[0026] With the above-mentioned positioning carrier and workpiece detection device, the workpiece to be measured can be placed on the carrier and adsorbed by the adsorption points. By opening or closing the adsorption holes of the corresponding adsorption points, the workpiece to be measured can be adsorbed by a group of three adsorption points arranged in a triangle. The workpiece to be measured is subjected to force at three points, so it can be stably supported on the carrier. Moreover, the anti-slip pad can increase the friction between the workpiece to be measured and the adsorption points. Therefore, each adsorption point only needs to provide a small adsorption force to provide a large lateral stabilizing force for the workpiece to be measured, thereby preventing the workpiece to be measured from sliding sideways. It can be seen that the above-mentioned positioning carrier can effectively prevent the workpiece from deforming while reliably fixing the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 It is a structural schematic diagram of a workpiece detection device in a preferred embodiment of the present invention;

[0029] Figure 2 for Figure 1 A front view of a positioning carrier in the workpiece detection device shown;

[0030] Figure 3 for Figure 2 a right side view of the positioning carrier shown;

[0031] Figure 4 for Figure 2 A top view of the positioning vehicle shown;

[0032] Figure 5 for Figure 4 A cross-sectional view of the positioning carrier along AA is shown;

[0033] Figure 6 for Figure 2 A front view of a push assembly in the positioning vehicle shown;

[0034] Figure 7 for Figure 6 Right side view of push assembly shown. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0040] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0041] See also Figure 1 The present invention provides a workpiece detection device 10 and a positioning carrier 100 . The workpiece detection device 10 includes the positioning carrier 100 , a mounting seat 200 and a rotating assembly 300 .

[0042] The positioning carrier 100 can carry and fix the workpiece to be measured. The workpiece to be measured is generally a plate-like structure with a relatively small thickness, such as 3D curved glass. The mounting seat 200 is generally a plate-like or table-like structure with strong rigidity, and is generally cooperated with a driving component (not shown), and can be installed on the moving end of the driving component, so as to achieve translation in the X direction and the Y direction. The rotating component 300 is arranged on the mounting seat 200, and the positioning carrier 100 is arranged at the rotating end of the rotating component 300. The rotating shaft of the rotating component 300 generally extends along the Z direction. Therefore, driven by the driving component and the rotating component 300, the workpiece to be measured on the positioning carrier 100 can also be translated and rotated, so as to facilitate all-round detection.

[0043] In addition, in order to improve the detection efficiency, a plurality of rotating components 300 may be disposed on the mounting base 200, and a positioning carrier 100 may be disposed at the rotating end of each rotating component 300. In this way, a plurality of workpieces to be detected may be detected at the same time.

[0044] See also Figures 2 to 4 The positioning carrier 100 includes a support frame 110, a carrier 120 and an anti-slip pad 130. Among them:

[0045] The support frame 110 supports the positioning carrier 100, and the carrier 120 is disposed on the support frame 110. Specifically, the support frame 110 is disposed at the rotating end of the rotating assembly 300. The support frame 110 can be a metal frame, a box structure, etc. The carrier 120 can generally be connected to the support frame 110 by screw fastening. Of course, in order to simplify the structure, the carrier 120 can also be integrally formed with the support frame 110.

[0046] Specifically in this embodiment, the support frame 110 includes a support 111 and a mounting plate 112, the mounting plate 112 is movably mounted on the support 111, and the carrier 120 is disposed on the mounting plate 112. In addition, an adjustment component may be disposed between the mounting plate 112 and the support 111. The mounting plate 112 may be a metal plate, and the carrier 120 may be fixed to the mounting plate 112 by threaded fasteners. Under the action of the adjustment component, the mounting plate 112 can be adjusted relative to the support 111 in the X direction and the Y direction, thereby calibrating the initial position of the carrier 120.

[0047] The carrier 120 is generally a metal plate-like structure with a flat surface, which can carry the workpiece to be tested. The surface of the carrier 120 is formed with a plurality of adsorption points 121 that can generate negative pressure. The adsorption points 121 can be connected to a vacuum pump such as a vacuum generator and a vacuum pump through a pipeline system. When the adsorption points 121 generate negative pressure, adsorption force can be provided to the workpiece to be tested on the carrier 120. Specifically in the present embodiment, a plurality of suction nozzles 140 are provided on the carrier 120, and each suction nozzle 140 forms an adsorption point 121.

[0048] It should be noted that in other embodiments, multiple adsorption holes (not shown) may be directly opened on the surface of the carrier 120, and an air path system connected to the multiple adsorption holes may be configured. In this case, each adsorption hole on the surface of the carrier 120 may form an adsorption point 121. Moreover, the suction nozzle 140 may also be replaced by a suction cup.

[0049] The adsorption holes of each adsorption point 121 can be operably opened or closed. When the adsorption holes of the adsorption points 121 are opened, negative pressure can be generated and the workpiece to be measured can be adsorbed; when the adsorption holes of the adsorption points 121 are closed, the adsorption points 121 cannot generate negative pressure. Specifically in this embodiment, the positioning carrier 100 also includes a plurality of plugs 150, and the adsorption ports of each adsorption point 121 are detachably blocked by the plugs 150.

[0050] When the adsorption hole of the adsorption point 121 needs to be opened, the plug 150 can be pulled out from the adsorption hole of the corresponding adsorption point 121. When the adsorption hole of the adsorption point 121 needs to be closed again, the plug 150 can be inserted into the adsorption hole of the adsorption point 121 again. Obviously, in other embodiments, the opening and closing states of the adsorption holes can also be switched by setting valves or other methods.

[0051] Among them, the multiple adsorption points 121 include at least one group of three adsorption points 121 whose connecting lines can be arranged into a triangle. That is, each group includes three adsorption points 121, and the three adsorption points 121 are not on the same straight line. Therefore, the three adsorption points 121 in the same group can be arranged into a triangle. The simplest case is that only three adsorption points 121 are formed on the carrier 120, and the three adsorption points 121 are respectively located at the three vertices of the triangle.

[0052] When the workpiece to be tested carried on the carrier 120 is adsorbed, by opening or closing the adsorption holes of the corresponding adsorption points 121, the adsorption holes of three adsorption points 121 that can be arranged in a triangle can be opened, while the adsorption holes of the other adsorption points 121 are closed. At this time, the workpiece to be tested is only provided with suction force by the three adsorption points 121, and the three points are subjected to force, and the three points determine a plane, so the workpiece to be tested can be stably supported on the carrier 120.

[0053] The anti-skid pad 130 covers a plurality of adsorption points 121, and the anti-skid pad 130 is provided with through holes (not shown) respectively connected to the adsorption holes of each adsorption point 121. The presence of the through holes can prevent the adsorption holes of the adsorption points 121 from being blocked by the anti-skid pad 130, so that negative pressure can be normally generated as needed. The anti-skid pad 130 can be a silicone pad. In order to ensure the flatness of the adsorption plane, the thickness of the anti-skid pad 130 is generally not more than 0.1 mm. Among them, the anti-skid pad 130 can be a plurality of single-piece structures, and respectively cover a plurality of adsorption points 121. In addition, when a plurality of adsorption holes are directly opened on the surface of the carrier 120 to form adsorption points 121, the surface of the carrier 120 is relatively flat. At this time, the anti-skid pad 130 can also be a whole-surface structure, and cover the surface of the carrier 120 as a whole.

[0054] Specifically in this embodiment, a plurality of anti-skid pads 130 are respectively covered on the suction surface of the suction nozzle 140 and each anti-skid pad 130 is provided with a through hole.

[0055] When the workpiece to be measured is adsorbed by the adsorption point 121, the anti-skid pad 130 can increase the friction between the workpiece to be measured and the adsorption point 121. Therefore, each adsorption point 121 only needs to provide a small adsorption force to provide a large lateral stabilizing force for the workpiece to be measured, thereby preventing the workpiece to be measured from sliding sideways during the detection process. Since the adsorption force of each adsorption point 121 is reduced, it is possible to effectively avoid deformation of the workpiece to be measured due to excessive suction. It can be seen that the positioning carrier 100 can effectively prevent the deformation of the workpiece while reliably fixing the workpiece.

[0056] In this embodiment, the plurality of adsorption points 121 include a plurality of groups of connection lines that can enclose three adsorption points 121 in a triangle.

[0057] Specifically, the multiple adsorption points 121 can be divided into multiple groups, each group includes three adsorption points 121, and the three adsorption points 121 are not on the same straight line. That is, each group of adsorption points 121 can be surrounded by a triangle. It should be pointed out that the three adsorption points 121 in one group can partially overlap with the three adsorption points 121 in another group. That is, a certain adsorption point 121 can be classified as the first group or the second group.

[0058] Moreover, the multiple triangles formed by the multiple groups of adsorption points 121 do not completely overlap. For example, there are four adsorption points 121 formed on the carrier 120, and any three of the adsorption points 121 are not on the same straight line. In this way, the four adsorption points 121 can be divided into four groups, thereby forming four triangles that do not completely overlap.

[0059] For workpieces of different sizes to be tested, different groups of three adsorption points 121 can be selected for adsorption. For example, for a workpiece of large size to be tested, three adsorption points 121 with a larger triangular area can be selected. Conversely, three adsorption points 121 with a smaller triangular area can be selected. In this way, for different workpieces to be tested, the force points of the adsorption force are also different, and can be adjusted according to the size of the workpiece to be tested to achieve the best adsorption effect, thereby improving the compatibility of the positioning carrier 100.

[0060] Further, such as Figure 4 As shown, in this embodiment, a plurality of adsorption points 121 are arranged in three parallel rows on the carrier 120 .

[0061] When adsorbing the workpiece to be measured, one adsorption point 121 can be selected from each row, and the selected three adsorption points 121 are not in a straight line. The three adsorption points 121 generate negative pressure for adsorption, and the adsorption holes of the remaining adsorption points 120 are closed. At this time, since the multiple adsorption points 121 are regularly arranged on the carrier 120, the appropriate adsorption point 121 can be quickly selected according to the size of the workpiece to be measured.

[0062] It should be noted that in other embodiments, the plurality of adsorption points 121 may also be randomly distributed on the surface of the carrier 120 .

[0063] For further information, please also refer to Figure 5 In the present embodiment, three mutually parallel air passages 122 are formed inside the carrier 120 , and the adsorption ports of the adsorption points 121 located in the same row are all connected to the same air passage 122 .

[0064] Specifically, the air channel 122 is in the shape of a long strip and extends along the arrangement direction of the adsorption points 121 in the same row. The air channel 122 is generally open at both ends, and its opening can be closed by a sealing block (not shown). Among them, the three phase air channels 122 are interconnected and connected through a joint 123. The joint 123 can be conveniently connected to a vacuum pump or other vacuum device, so that each adsorption point 121 can generate negative pressure.

[0065] Please also read Figure 6 In this embodiment, the positioning carrier 100 further includes a positioning component 160 and a pushing component 170 . The positioning component 160 is located at the edge of the carrier 120 , and the pushing component 170 is used to push the workpiece to be measured located on the surface of the carrier 120 until it abuts against the positioning component 160 .

[0066] Specifically, when the workpiece to be tested is loaded onto the stage 120 from the previous process, the position may deviate from the preset position. At this time, the pushing component 170 cooperates with the positioning component 160 to push the workpiece to be tested to slide along the surface of the stage 120, thereby repositioning the workpiece to be tested on the stage 120 to move it to the preset position.

[0067] Furthermore, in this embodiment, each adsorption point 121 can also generate positive pressure, and each adsorption point 121 can switch between a state of generating positive pressure and a state of generating negative pressure.

[0068] Generating positive pressure means that airflow can be ejected from the adsorption hole of the adsorption point 121. Specifically, the adsorption hole of the adsorption point 121 is connected not only to a vacuum pump or other vacuum device, but also to an air blowing device through a pipeline system. In addition, a switching valve is provided on the pipeline system to allow the vacuum pump and the air blowing device to alternately communicate with the adsorption hole of the adsorption point 121. When the air blowing device is connected, the air blowing device can generate positive pressure at the adsorption point 121.

[0069] When positive pressure is formed at the adsorption point 121, the airflow ejected from the adsorption hole can lift the workpiece to be measured and form an air film between the workpiece and the anti-slip pad 130. In this way, when the pushing component 170 pushes the workpiece to be measured to reposition, there will be a layer of air film between the workpiece to be measured and the anti-slip pad 130, so that the friction force on the workpiece to be measured is significantly reduced, and the surface of the workpiece to be measured is effectively prevented from being worn.

[0070] The positioning assembly 160 can be a block, plate, or rod-shaped structure. Specifically, in the present embodiment, the positioning assembly 160 includes a first positioning rod 161 and a second positioning rod 162, which are respectively located on two adjacent sides of the carrier 120. The first positioning rod 161 can abut against the workpiece to be measured in the first direction, and the second positioning rod 162 can abut against the workpiece to be measured in the second direction. In other words, the positioning assembly 160 can abut against the workpiece to be measured in the first direction and the second direction. The first direction is perpendicular to the second direction, such as Figure 4 As shown, the first direction refers to the horizontal direction, and the second direction refers to the vertical direction.

[0071] Please also read Figure 6 and Figure 7 In this embodiment, the pushing assembly 170 includes a supporting plate 171 , a first driving member 172 , a moving block 173 and a roller 174 .

[0072] The support plate 171 can be a metal sheet structure, which plays a supporting role. The support plate 171 can be welded or screwed to the support frame 110, or can be set on the mounting seat 200. The first driving member 172 is fixed to the support plate 171. Among them, the first driving member 172 can be a power element such as a cylinder, a linear motor, etc. The moving block 173 is arranged at the driving end of the first driving member 172. Moreover, the first driving member 172 can drive the moving block 173 to extend and retract along the third direction. The roller 174 is elastically connected to the moving block 173 and is used to abut against the workpiece to be measured.

[0073] The third direction is inclined toward the second direction relative to the first direction. Similarly, the third direction is also inclined toward the first direction relative to the second direction. When the pushing component 170 pushes the workpiece to be measured, the workpiece to be measured will move along the third direction. Since there are partial speeds in both the first direction and the second direction when the workpiece to be measured moves along the third direction. Therefore, only the first driving member 172 needs to be moved to drive the workpiece to be measured to quickly abut against the positioning component 160 in the first direction and the second direction at the same time, thereby improving the positioning efficiency.

[0074] The roller 174 is elastically connected to the moving block 173, that is, the roller 174 can be extended and retracted relative to the moving block 173 when squeezed. A spring can be arranged between the roller 174 and the moving block 173, and the roller 174 can be hinged by a pin. The roller 174 can be a spherical wheel or a drum, which can roll relative to the workpiece to be measured that abuts against it.

[0075] When the push component 170 pushes the workpiece to be measured to slide along the third direction, the workpiece to be measured may first abut against the positioning component 160 in the first direction, but not in the second direction; or the workpiece to be measured may first abut against the positioning component 160 in the second direction, but not in the first direction. At this time, the push component 170 needs to continue pushing until both directions abut.

[0076] Assume that the workpiece to be measured first contacts the positioning assembly 160 in the first direction, and when the pushing assembly 170 continues to push, the workpiece to be measured will remain fixed in the first direction and continue to slide in the second direction. At this time, the workpiece to be measured and the moving block 173 have relative motion in the first direction. When the workpiece to be measured and the moving block 173 have relative motion, the rotation of the roller 174 can significantly reduce the friction force on the edge of the workpiece to be measured, thereby effectively avoiding the wear of the workpiece to be measured. Moreover, the roller 174 retracts in the first direction, thereby avoiding the workpiece to be measured from being squeezed and damaged due to the continued movement of the moving block 173.

[0077] Furthermore, in this embodiment, the moving block 173 is formed with a first branch 1731 extending along the first direction and a second branch 1732 extending along the second direction, and the first branch 1731 and the second branch 1732 are both provided with rollers 174 .

[0078] The arrangement of the two branches makes the moving block 173 roughly Y-shaped. When pushing the workpiece to be measured, the roller 174 located in the first branch 1731 applies a force in the second direction to the workpiece to be measured and can be extended in the second direction; while the roller 174 located in the second branch 1732 applies a force in the first direction to the workpiece to be measured and can be extended in the first direction. Therefore, the arrangement of the first branch 1731 and the second branch 1732 can form a semi-enclosure of the workpiece to be measured, so that it is more stable in the process of driving the workpiece to be measured to slide.

[0079] Furthermore, in the present embodiment, the pushing assembly 170 further includes a second driving member 175 , and the support plate 171 is fixed to the second driving member 175 and can move along the first direction or the second direction under the driving of the second driving member 175 .

[0080] Specifically, the second driving member 175 may also be a power element such as a cylinder or a linear motor. The second driving member 175 may be fixed to the support frame 110 or to the mounting seat 200. The second driving member 175 is actuated to adjust the initial position of the support plate 171, so that the pushing assembly 170 can push and position the workpiece to be measured at different positions.

[0081] With the above-mentioned positioning carrier 100 and workpiece detection device 10, the workpiece to be measured can be placed on the carrier 120 and adsorbed by the adsorption points 121. By opening or closing the adsorption holes of the corresponding adsorption points 121, the workpiece to be measured can be adsorbed by a group of three adsorption points 121 arranged in a triangle. The workpiece to be measured is subjected to force at three points, so it can be stably supported on the carrier 120. Moreover, the anti-slip pad 130 can increase the friction between the workpiece to be measured and the adsorption points 121. Therefore, each adsorption point 121 only needs to provide a small adsorption force to provide a large lateral stabilizing force for the workpiece to be measured, thereby preventing the workpiece to be measured from sliding sideways. It can be seen that the above-mentioned positioning carrier 100 can effectively prevent the workpiece from deforming while achieving reliable fixation of the workpiece.

[0082] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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.

[0083] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A positioning vehicle, characterized in that: include: A support frame (110), the support frame (110) comprising a mounting plate (112); A carrier (120) is arranged on the support frame (110), the carrier (120) is arranged on the mounting plate (112), a plurality of adsorption points (121) capable of generating negative pressure are formed on the surface of the carrier (120), and the adsorption holes of each adsorption point (121) can be operated to be opened or closed; An anti-slip pad (130) covers the plurality of adsorption points (121), and the anti-slip pad (130) is provided with through holes respectively connected to the adsorption holes of each of the adsorption points (121); A positioning component (160) and a pushing component (170), wherein the positioning component (160) is located at the edge of the carrier (120), and the pushing component (170) is used to push the workpiece to be measured located on the surface of the carrier (120) until it abuts against the positioning component (160); wherein the plurality of adsorption points (121) include at least one group of three adsorption points (121) whose connecting lines can enclose a triangle; Each of the adsorption points (121) can also generate positive pressure, and each of the adsorption points (121) can switch between a state of generating positive pressure and a state of generating negative pressure.

2. The positioning carrier according to claim 1, characterized in that: A plurality of suction nozzles (140) are provided on the carrier (120), and each of the suction nozzles (140) forms a suction point (121); a plurality of anti-slip pads (130) are respectively covered on the suction surface of the suction nozzle (140), and each of the anti-slip pads (130) is provided with the through hole.

3. The positioning carrier according to claim 1, characterized in that: It also comprises a plurality of plugs (150), and the adsorption port of each adsorption point (121) is detachably blocked by the plug (150).

4. The positioning carrier according to claim 1, characterized in that: The plurality of adsorption points (121) include a plurality of groups of connection lines that can enclose three adsorption points (121) in a triangle.

5. The positioning carrier according to claim 4, characterized in that: The plurality of adsorption points (121) are arranged on the carrier (120) in three parallel rows.

6. The positioning carrier according to claim 5, characterized in that: Three mutually parallel air passages (122) are formed inside the carrier (120), and the adsorption holes of the adsorption points (121) located in the same row are all connected to the same air passage (122).

7. The positioning carrier according to claim 1, characterized in that: The positioning assembly (160) is capable of abutting against the workpiece to be measured in a first direction and a second direction perpendicular to the first direction, and the pushing assembly (170) comprises: Support plate (171); A first driving member (172) is fixed to the support plate (171), a driving end of the first driving member (172) is provided with a moving block (173), and the first driving member (172) can drive the moving block (173) to extend and retract along a third direction, wherein the third direction is inclined toward the second direction relative to the first direction; The roller (174) is elastically connected to the moving block (173) and is used to abut against the workpiece to be measured.

8. The positioning carrier according to claim 7, characterized in that: The moving block (173) is formed with a first branch (1731) extending along the first direction and a second branch (1732) extending along the second direction, and the roller (174) is disposed on both the first branch (1731) and the second branch (1732).

9. A workpiece detection device, characterized in that: include: Mounting seat (200); A rotating assembly (300) disposed on the mounting seat (200); and As described in any one of claims 1 to 8 above, the support frame (110) of the positioning carrier (100) is arranged at the rotating end of the rotating component (300).

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