Detection device

Abstract

The invention relates to a detection device, which comprises a base, a bracket, a dust removal structure, a detection module and a transfer assembly, and is characterized in that the bracket is erected on the base; the dust removal structure is provided with a material passing hole channel for workpieces to pass through, a blowing air channel and a dust collection air channel which are communicated with the material passing hole channel are further arranged in the dust removal structure, the blowing air channel is used for being communicated with a positive pressure generator so as to provide positive pressure airflow into the material passing hole channel, and the dust collection air channel is used for being communicated with a negative pressure generator so as to provide negative pressure airflow into the material passing hole channel. Negative pressure suction airflow is formed in the material passing hole channel; the detection module is used for detecting workpieces in a detection range; the transferring assembly is movably arranged on the base in the material conveying direction and comprises a jig used for picking up workpieces. Wherein in the material conveying direction, the dust removal structure and the detection module are arranged on the two opposite sides of the support correspondingly, and the material passing hole channel extends in the material conveying direction. And the dust collection air duct is matched with the purging air duct, so that the purged dust can be sucked and recovered, and the dust removal is more sufficient.

Description

Technical Field

[0001] The present application relates to the field of detection technology, and in particular to a detection device. Background Art

[0002] With the development of science and technology, various devices and equipment have higher and higher requirements on the precision of their components in order to achieve specific and complex functions. Therefore, it is common to conduct defect detection and dimension measurement on products before they leave the factory to eliminate defective products.

[0003] The detection device in the traditional technology is usually also equipped with a blowing module, which is used to blow away dust and debris on the surface of the product to improve the detection accuracy.

[0004] However, for the detection device in the traditional technology, the dust and debris raised by the blowing module still have the problem of falling back onto the surface of the product again, and the dust removal is not sufficient. Summary of the invention

[0005] Based on this, it is necessary to provide a detection device to address the problem of insufficient dust removal before product testing.

[0006] The present application provides a detection device, which includes a base, a bracket, a dust removal structure, a detection module and a transfer assembly, wherein the bracket is mounted on the base; the dust removal structure is provided with a material passing channel for the workpiece to pass through, and the dust removal structure is also provided with a purge air duct and a dust suction air duct respectively connected with the material passing channel, the purge air duct is used to communicate with a positive pressure generator to provide a positive pressure airflow into the material passing channel, and the dust suction air duct is used to communicate with a negative pressure generator to form a negative pressure suction airflow in the material passing channel; the detection module is used to detect the workpiece located within the detection range; the transfer assembly is movably arranged on the base along the feeding direction, and the transfer assembly includes a fixture for picking up the workpiece; wherein, along the feeding direction, the dust removal structure and the detection module are respectively arranged on opposite sides of the bracket, and the material passing channel extends along the feeding direction.

[0007] In one of the embodiments, along the feeding direction, the connecting portion of the purge air duct and the material passing channel is spaced apart from the connecting portion of the dust suction air duct and the material passing channel; and the connecting portion of the dust suction air duct and the material passing channel is closer to the side where the detection module is located relative to the connecting portion of the purge air duct and the material passing channel.

[0008] In one embodiment, the dust removal structure includes a substrate, a first clamping plate and a second clamping plate, the first clamping plate is connected to the substrate and clamped to form the purge channel, and the second clamping plate is connected to the substrate and clamped to form the dust suction duct; along the feeding direction, the first clamping plate and the second clamping plate are respectively attached to opposite sides of the substrate, and the second clamping plate is closer to the side where the detection module is located relative to the first clamping plate.

[0009] In one embodiment, the purge air duct includes an air outlet duct recessed in the hole wall of the feed passage, the base plate includes a first wall portion bonded to the first clamp, the first wall portion includes a guide wall, and the guide wall is a partial structure of the air outlet duct formed by clamping; the side of the guide wall close to the feed passage is relatively far away from the side of the feed passage, and is deflected along the feeding direction toward the direction where the dust suction air duct is located, so that the air outlet duct is biased toward the side where the dust suction air duct is located.

[0010] In one embodiment, the dust suction air duct includes an air inlet duct recessed in the hole wall of the feed passage; of the two wall portions forming the air inlet duct, the side close to the feed passage duct is opened relatively to the side away from the feed passage duct, so that the air inlet duct is trumpet-shaped.

[0011] In one embodiment, the purge air duct includes a first main channel and a first connecting channel, the first main channel extends in an arch shape along the circumferential direction of the feed channel and is arranged on the outer peripheral side of the feed channel, and the first main channel is used to communicate with a positive pressure generator; a plurality of the first connecting channels are arranged at intervals and side by side in the circumferential direction of the feed channel, and the first connecting channel is located on the outer peripheral side of the feed channel; wherein, the first connecting channels are distributed on the inner peripheral side of the first main channel, the flow area of ​​the first connecting channel is smaller than the flow area of ​​the first main channel, and one end of the first connecting channel is connected to the first main channel, and the other end is connected to the feed channel.

[0012] In one embodiment, the first clamping plate includes a purge wall attached to the substrate, the purge wall is recessed with a first main groove and a first connecting groove, the first main groove extends in an arch shape along the circumferential direction of the feed channel and is arranged on the outer peripheral side of the feed channel, a plurality of the first connecting grooves are arranged spaced apart and side by side along the circumferential direction of the feed channel, the first connecting groove is located on the outer peripheral side of the feed channel, and the first connecting grooves are distributed on the inner peripheral side of the first main groove; the first main groove is closed by the substrate to form the first main channel, and the first connecting groove is closed by the substrate to form the first connecting channel; the recessed depth of the first main groove is greater than the first connecting groove, so that the flow area of ​​the formed first main channel is greater than the flow area of ​​the first connecting groove.

[0013] In one embodiment, the dust suction duct includes a second main channel and a second connecting channel, the second main channel extends in an arch shape along the circumferential direction of the feed channel and is arranged on the outer peripheral side of the feed channel, and the second main channel is used to communicate with a negative pressure generator; a plurality of second connecting channels are arranged at intervals and side by side in the circumferential direction of the feed channel, and the second connecting channels are located on the outer peripheral side of the feed channel; wherein, the second connecting channels are distributed on the inner peripheral side of the second main channel, the flow area of ​​the second connecting channel is smaller than the flow area of ​​the second main channel, the flow area of ​​the second connecting channel is larger than the flow area of ​​the first connecting channel, and one end of the second connecting channel is connected to the second main channel, and the other end is connected to the feed channel.

[0014] In one embodiment, the first splint is provided with a first bridge hole, the base plate is provided with a second bridge hole, and the second splint is provided with a third bridge hole, and the first bridge hole, the second bridge hole and the third bridge hole have the same shape and size; along the material conveying direction, the first bridge hole, the second bridge hole and the third bridge hole are connected in sequence to form the material passing channel.

[0015] In one of the embodiments, along the feeding direction, the two ends of the feed channel respectively have an inlet and an outlet, and a avoidance opening is provided on one side of the circumference of the feed channel, and the avoidance opening extends from the inlet to the outlet along the feeding direction; the avoidance opening is for a jig carrying the workpiece to pass through, and the feed channel is partially closed by the jig when the jig is in the avoidance opening.

[0016] In one of the embodiments, the hole wall of the material transfer channel on one side of the hole wall opposite to the avoidance port is constructed to be in a concave arc shape.

[0017] In one embodiment, there are multiple dust removal structures, and the multiple dust removal structures are arranged on the bracket at intervals along a reference direction, and the reference direction intersects with the feeding direction. The transfer assembly is provided with multiple jigs, and the multiple jigs are arranged at intervals along the reference direction. The multiple jigs correspond one-to-one with the multiple dust removal structures to transport the multiple workpieces to the multiple material transfer channels.

[0018] In the above detection device, the material passage of the dust removal structure is for the workpiece to pass through, and the dust removal structure is provided with a purge duct and a dust suction duct respectively connected to the material passage. On the one hand, the dust suction duct cooperates with the purge duct to suck and recycle the dust on the workpiece that is blown away by the positive pressure airflow, reducing the probability of dust and debris being adsorbed to the workpiece again, making the dust removal more sufficient. On the other hand, the purge duct and the dust suction duct are both connected to the material passage, and the workpiece completes dust removal in the relatively closed material passage. Under the limitation of the space in the material passage, it can not only reduce the probability of dust leakage, but also improve the adequacy of purge and dust suction, making the dust removal more thorough. Furthermore, the dust removal structure and the detection module are arranged on opposite sides of the bracket along the feeding direction, the material passage extends along the feeding direction, and the transfer assembly can transport the workpiece along the conveying direction. Therefore, under the transportation of the transfer assembly, the workpiece can pass through the material passage and the detection module of the dust removal structure, and be detected immediately after dust removal, thereby improving the accuracy of the detection. At the same time, the transfer component can complete dust removal and detection simultaneously by moving along the conveying direction, thereby improving the overall processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A side view of a detection device provided in one embodiment of the present application.

[0020] Figure 2 This is an axonometric diagram of a dust removal structure and a fixture provided in one embodiment of the present application.

[0021] Figure 3 for Figure 2 A front view of the dust removal structure and fixture shown.

[0022] Figure 4 for Figure 3 The dust removal structure is shown in a cross-sectional view along line AA.

[0023] Figure 5 for Figure 2 Schematic diagram of the explosion of the dust removal structure and fixture shown.

[0024] Figure 6 for Figure 5 A schematic axonometric view of the first clamping plate in the dust removal structure shown.

[0025] Figure 7 for Figure 4 A partial enlarged view of point B in the dust removal structure shown.

[0026] Figure 8 for Figure 5 A schematic axonometric view of the second clamping plate in the dust removal structure shown.

[0027] Fig. 9 for Figure 1 A schematic axonometric diagram of the bracket, dust removal structure, detection module and fixture in the detection device shown.

[0028] Figure numerals: 10, detection device; 11, bracket; 12, detection module; 13, transfer assembly; 13a, fixture; 14, dust removal structure; 100, first clamp; 101, purge air duct; 102, air outlet duct; 103, first main channel; 104, first connecting channel; 110, first bridge hole; 120, purge wall; 130, first main groove; 140, first connecting groove; 150, first stop block; 160, matching wall; 170, air inlet; 200, second clamp; 201, dust suction air duct; 202, air inlet duct; 203, second main channel; 204, second connecting channel; 210, third Bridge hole; 220, dust collecting wall; 230, second main groove; 240, second connecting groove; 250, second stop block; 260, first outward expansion wall; 270, air outlet; 300, substrate; 310, second bridge hole; 320, first wall portion; 321, guide wall; 330, second wall portion; 331, second outward expansion wall; 400, material transfer channel; 401, dust removal chamber; 410, inlet; 420, outlet; 430, avoidance port; 500, air joint; S, material feeding direction; K, reference direction; C, circumferential direction of the material transfer channel; C1, circumferential direction of the first bridge hole; C2, circumferential direction of the third bridge hole. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application 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 application. However, the present application 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 application, so the present application is not limited by the specific embodiments disclosed below.

[0030] In the description of the present application, it should be understood that if 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", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0031] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0032] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated 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 this application can be understood according to the specific circumstances.

[0033] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the 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. The first feature being "below", "below" and "below" the 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.

[0034] It should be noted that if 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. If 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. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0035] See also Figure 1 , Figure 1A side view of a detection device provided by an embodiment of the present application is shown. The detection device 10 provided by an embodiment of the present application includes a base (not shown in the figure, the same below), a bracket 11, a detection module 12, a transfer assembly 13 and a dust removal structure 14, and the bracket 11, the detection module 12, the transfer assembly 13 and the dust removal structure 14 are all arranged on the base. Among them, the detection module 12 is used to detect the workpiece located within the detection range. The transfer assembly 13 includes a fixture 13a for picking up the workpiece, and the transfer assembly 13 is movably arranged on the base along the feeding direction S. The bracket 11 is mounted on the base, and the detection module 12 and the dust removal structure 14 are both arranged on the bracket 11, so that the detection module 12 and the dust removal structure 14 have a higher position relative to the transfer assembly 13 and the workpiece picked up by the transfer assembly 13, which is convenient for the detection of the detection module 12 and the dust removal of the dust removal structure 14.

[0036] Furthermore, along the feeding direction S, the dust removal structure 14 and the detection module 12 are respectively arranged on opposite sides of the bracket 11. Therefore, the transfer assembly 13 moves along the feeding direction S, and can carry the workpiece to the detection range of the detection module 12 for detection; and the transfer assembly 13 moves along the feeding direction S, and can carry the workpiece to the dust removal structure 14 for dust removal. The dust removal structure 14 can remove dust from the workpiece, and after the dust removal is completed, the workpiece is detected by the detection module 12, thereby improving the accuracy of detection.

[0037] See also Figure 1 and Figure 2 In one embodiment, the dust removal structure 14 is provided with a material passage 400 for the workpiece to pass through, and the material passage 400 extends along the feeding direction S, so the workpiece moves roughly along the feeding direction S in the material passage 400. The dust removal structure 14 is also provided with a purge air duct 101 and a dust suction air duct 201, and the purge air duct 101 and the dust suction air duct 201 are respectively connected to the material passage 400. The purge air duct 101 is also used to communicate with a positive pressure generator to provide a positive pressure airflow into the material passage 400, and to remove dust and debris on the workpiece by purge. The dust suction air duct 201 is also used to communicate with a negative pressure generator to form a negative pressure suction airflow in the material passage 400, and to recover dust and debris separated from the workpiece through the suction airflow, thereby reducing the probability of dust and debris falling back on the workpiece again, so as to make the dust removal more complete.

[0038] In the above-mentioned detection device 10, the material passage 400 of the dust removal structure 14 is for the workpiece to pass through, and the dust removal structure 14 is provided with a purge duct 101 and a dust suction duct 201 respectively connected to the material passage 400. On the one hand, the dust suction duct 201 cooperates with the purge duct 101 to suck in and recycle the dust on the workpiece that is blown away by the positive pressure airflow, thereby reducing the probability of dust and debris being adsorbed to the workpiece again, making the dust removal more sufficient. On the other hand, the purge duct 101 and the dust suction duct 201 are both connected to the material passage 400, and the workpiece completes dust removal in the relatively closed material passage 400. Under the limitation of the space in the material passage 400, it can not only reduce the probability of dust leakage, but also improve the adequacy of purge and dust suction, making the dust removal more thorough.

[0039] Furthermore, the dust removal structure 14 and the detection module 12 are arranged on opposite sides of the bracket 11 along the feeding direction S, the material passage 400 extends along the feeding direction S, and the transfer assembly 13 can convey the workpiece along the conveying direction, so under the conveying of the transfer assembly 13, the workpiece can pass through the material passage 400 of the dust removal structure 14 and the detection module 12, and be detected immediately after dust removal, thereby improving the accuracy of the detection. At the same time, the transfer assembly 13 can simultaneously complete the dust removal step and the detection step by moving along the conveying direction, simplifying the movement of the transfer assembly 13 for easy control and improving the overall processing efficiency.

[0040] Please continue reading Figure 1 and Figure 2 In one embodiment, along the feeding direction S, the connecting part of the purge air duct 101 and the material passage 400 (i.e., the air inlet duct 202 mentioned below) is arranged at intervals with the connecting part of the dust suction air duct 201 and the material passage 400 (i.e., the air outlet duct 102 mentioned below). And the connecting part of the dust suction air duct 201 and the material passage 400 is closer to the side where the detection module 12 is located relative to the connecting part of the purge air duct 101 and the material passage 400. As a result, during the movement of the workpiece in the material passage 400, it can successively pass through the areas where the purge air duct 101 and the dust suction air duct 201 are located, so that the dust separation process and the dust recovery process are carried out step by step, thereby improving the dust removal adequacy.

[0041] See also Figures 2 to 4 In one embodiment, the dust removal structure 14 includes a first clamping plate 100, a second clamping plate 200 and a base plate 300. The first clamping plate 100 is connected to the base plate 300 and clamped to form a purge channel. The second clamping plate 200 is connected to the base plate 300 and clamped to form a dust suction duct 201. The purge duct 101 and the dust suction duct 201 are formed by the first clamping plate 100, the base plate 300 and the second clamping plate 200, so that the dust removal structure 14 has a simpler structural distribution and composition, which is convenient for being flexibly arranged at various required positions. For example, it is arranged on the side of the bracket 11 that is away from the detection module 12 as mentioned above.

[0042] Furthermore, along the feeding direction S, the first clamping plate 100 and the second clamping plate 200 are respectively attached to the opposite sides of the base plate 300, and the second clamping plate 200 is closer to the side where the detection module 12 is located relative to the first clamping plate 100, so that the dust suction air duct 201 formed by the second clamping plate 200 and the base plate 300 is closer to the side where the detection module 12 is located, and the purge air duct 101 formed by the first clamping plate 100 and the base plate 300 is farther away from the side where the detection module 12 is located. With such a configuration, the transfer assembly 13 can drive the workpiece along the extension direction of the material passage 400 (i.e., the feeding direction S mentioned above) to successively pass through the purge air duct 101, the dust suction air duct 201 and the detection module 12, so that the workpiece is fully dusted before detection, so that the detection accuracy is higher.

[0043] Of course, in another embodiment, the first clamping plate 100 and the second clamping plate 200 can also be attached to the same side of the substrate 300. For example, along the conveying direction, the first clamping plate 100 and the second clamping plate 200 are attached to the same side of the substrate 300 one after another, so that the purge air duct 101 and the dust suction air duct 201 formed by the clamping can be distributed one after another in the feeding direction S. For ease of understanding and description, each embodiment is described by taking the first clamping plate 100 and the second clamping plate 200 as an example of being located on opposite sides of the substrate 300. In the case of no contradiction, the first clamping plate 100 and the second clamping plate 200 and the substrate 300 have other distribution position relationships, so they are not repeated one by one in each embodiment.

[0044] See also Figure 2 and Figure 4 In one embodiment, the dust removal structure 14 further includes a plurality of gas joints 500, some of which are disposed on the side of the first clamping plate 100 away from the base plate 300, for communicating with the positive pressure generator. Another portion of the plurality of gas joints 500 is disposed on the side of the second clamping plate 200 away from the base plate 300, for communicating with the negative pressure generator.

[0045] In one embodiment, since the purge air duct 101 is formed by clamping the first clamp plate 100 and the base plate 300, and the dust collection air duct 201 is formed by clamping the second clamp plate 200 and the base plate 300, at least one of the first clamp plate 100 and the second clamp plate 200 can be configured to be detachably connected to the base plate 300, so as to disassemble and open the purge air duct 101 and / or the dust collection air duct 201, and clean and unclog the purge air duct 101 and the dust collection air duct 201, etc.

[0046] See also Figure 3 and Figure 4In one embodiment, along the feeding direction S, the two ends of the feed channel 400 have an inlet 410 and an outlet 420 respectively. In addition, a circumferential side of the feed channel 400 is provided with an avoidance opening 430, and the avoidance opening 430 extends from the inlet 410 to the outlet 420 along the feeding direction S. The avoidance opening 430 is used for the passage of the jig 13a carrying the workpiece. In this embodiment, the avoidance opening 430 is configured to avoid the jig 13a, so that the transfer component 13 can keep the workpiece moving. The feed channel 400 is used to be partially closed by the jig 13a when the jig 13a is in the avoidance opening 430. That is to say, when the jig 13a carries the workpiece and moves into the avoidance opening 430, the avoidance opening 430 can be blocked, so that the feed channel 400 forms a relatively closed cavity, which is recorded as the dust removal cavity 401. Since the workpiece is dusted in a relatively closed dust removal chamber 401, on the one hand, the probability of dust leakage caused by the positive pressure airflow can be reduced. On the other hand, since the dust removal chamber 401 is relatively closed, the movement of dust is restricted, which makes it easier for the dust suction duct 201 to fully recover the dust, reducing the probability of dust falling back on the workpiece, making the dust removal more complete.

[0047] Furthermore, the inlet 410 is provided on the first clamping plate 100, and the outlet 420 is provided on the second clamping plate 200. At the same time, since the purge air duct 101 is formed by the first clamping plate 100 and the base plate 300, the purge air duct 101 is located on the side close to the inlet 410. Correspondingly, since the dust suction air duct 201 is formed by the second clamping plate 200 and the base plate 300, the dust suction air duct 201 is located on the side close to the outlet 420. Therefore, when the workpiece enters the material passage 400 from the inlet 410, one side of the inlet 410 is blocked by the workpiece itself, and the bottom avoidance port 430 is blocked by the fixture 13a, so that the dust raised by the positive pressure airflow has a movement tendency to move close to the outlet 420, so that the dust suction air duct 201 located on the side where the outlet 420 is located can fully recover the dust.

[0048] See also Figure 3 In one embodiment, the maximum width of the avoidance opening 430 is L1, and the maximum width of the fixture 13a is L2, wherein 1.05L2≤L1≤1.80L2, so that the fixture 13a can fully block the avoidance opening 430 while satisfying the requirement of smooth passage of the fixture 13a, so that the dust removal chamber 401 is relatively closed. Furthermore, the ratio of the maximum width L1 of the avoidance opening 430 to the maximum width L2 of the fixture 13a can be: 1.05, 1.10, 1.12, 1.14, 1.16, 1.18, 1.20, 1.25, 1.30, 1.35, 1.40, 1.45, 1.50, 1.55, 1.60, 1.65, 1.70, 1.75 and 1.80, etc., which can be designed according to actual needs.

[0049] Please continue reading Figure 3In one embodiment, the hole wall on one side of the material passage 400 opposite to the avoidance port 430 is constructed to be in an inwardly concave arc shape, so as to facilitate the passage of workpieces of various shapes while reducing the space in the material passage 400 (i.e., the dust removal chamber 401). At the same time, compared with the hole wall with sharp corners and edges, constructing the above-mentioned hole wall in an arc shape can reduce the probability of dust retention and facilitate the full recovery of dust. It should be noted that the above-mentioned hole wall is in an inwardly concave arc shape, which means that the above-mentioned hole wall is in an inwardly concave arc shape in the cross section perpendicular to the feeding direction S. The hole wall on one side of the material passage 400 opposite to the avoidance port 430 can be partially cylindrical as a whole.

[0050] See also Figure 4 and Figure 5 , combined with Figure 2 In one embodiment, the first clamping plate 100 is provided with a first bridge hole 110, the base plate 300 is provided with a second bridge hole 310, and the second clamping plate 200 is provided with a third bridge hole 210. The first bridge hole 110, the second bridge hole 310 and the third bridge hole 210 have the same shape and size. Along the feeding direction S, the first bridge hole 110, the second bridge hole 310 and the third bridge hole 210 are connected in sequence to form a material passage 400. Since the first bridge hole 110, the second bridge hole 310 and the third bridge hole 210 forming the material passage 400 have the same shape and size, the joint between the first clamping plate 100 and the base plate 300 and the joint between the base plate 300 and the second clamping plate 200 are smoother, so that the inner wall of the material passage 400 formed thereby is smooth and regular, so as to reduce the probability of corners appearing in the material passage 400 to block or contain dust, so that dust removal is more sufficient.

[0051] See also Figure 5 Further, the inlet 410 may be disposed on a side of the first bridge hole 110 away from the substrate 300 , and the outlet 420 may be disposed on a side of the third bridge hole 210 away from the substrate 300 .

[0052] See also Figure 4 and Figure 5 In one embodiment, the base plate 300 includes a first wall portion 320 and a second wall portion 330. Along the feeding direction S, the first wall portion 320 and the second wall portion 330 are arranged opposite to each other. The first clamping plate 100 is connected to the first wall portion 320, and is clamped with the first wall portion 320 to form the purge air duct 101 as described in each embodiment. The second clamping plate 200 is connected to the second wall portion 330, and is clamped with the second wall portion 330 to form the dust suction air duct 201 as described in each embodiment.

[0053] The first wall portion 320 and the second wall portion 330 are parallel to each other and are perpendicular to the feeding direction S. Therefore, the distribution area of ​​the purge air duct 101 formed by the first clamping plate 100 and the first wall portion 320 is roughly perpendicular to the feeding direction S. The distribution area of ​​the dust suction air duct 201 formed by the second clamping plate 200 and the second wall portion 330 is also roughly perpendicular to the feeding direction S. Therefore, after the workpiece enters the material passage 400 along the feeding direction S, it can first be purged and dusted by the positive pressure airflow, and then pass through the area where the dust suction air duct 201 is located. With this arrangement, the dust raised by the positive pressure airflow can be fully recovered by the dust suction air duct 201.

[0054] Further, the purge air duct 101 may be formed by a groove sunken on the surface of the first clamping plate 100 and / or the first wall portion 320. Similarly, the dust suction air duct 201 may be formed by a groove sunken on the surface of the second clamping plate 200 and / or the second wall portion 330. For ease of description, each embodiment is described by taking the example that the grooves forming the purge air duct 101 are distributed on the first clamping plate 100 and the grooves forming the dust suction air duct 201 are distributed on the second clamping plate 200, that is, at this time, the first wall portion 320 and the second wall portion 330 are relatively flat.

[0055] See also Figure 6 , combined with Figure 3 In one embodiment, the purge air duct 101 includes a first main channel 103 and a first connecting channel 104, which are interconnected. The first main channel 103 is used to communicate with the positive pressure generator, that is, the first main channel 103 is used to access the positive pressure airflow. The first main channel 103 is arranged on the outer peripheral side of the material passage channel 400 in an arched shape along the circumferential direction C of the material passage channel 400. A plurality of first connecting channels 104 are arranged side by side and spaced apart in the circumferential direction C of the material passage channel 400, the first connecting channels 104 are located on the outer peripheral side of the material passage channel 400, and the first connecting channels 104 are distributed on the inner peripheral side of the first main channel 103. That is, in the direction perpendicular to the circumferential direction C of the material passage channel 400, the first main channel 103, the first connecting channel 104 and the material passage channel 400 are distributed in sequence from outside to inside. One end of the first connecting channel 104 is connected to the first main channel 103, and the other end is connected to the material passage channel 400. The first main channel 103 is configured to extend in an arch shape along the above-mentioned circumferential direction, so that the first main channel 103 can provide positive pressure airflow to the first connecting channel 104 located at various locations in the circumferential direction, so that the positive pressure airflow can provide positive pressure airflow from multiple areas in the circumferential direction to the workpiece located in the feed channel 400 at the same time, so as to fully clear away dust and debris that may exist on the surface of the workpiece.

[0056] Furthermore, the flow area of ​​the first connecting channel 104 is smaller than the flow area of ​​the first main channel 103, so that the first connecting channel 104 can accelerate the positive pressure airflow from the first main channel 103, thereby improving the purging and dust removal effect. It is easy to understand that according to the fluid dynamics formula: V=Q / A; wherein V is the flow velocity of the fluid, Q is the volume flow rate of the fluid, and A is the flow area of ​​the fluid. When the flow rate is constant, the smaller the flow area, the higher the flow velocity, and the higher the flow velocity, the better the dust removal effect.

[0057] See also Figure 6 and Figure 7 In one embodiment, the purge air duct 101 further includes an air outlet duct 102, which is formed concavely in the hole wall of the material passage duct 400, so that the hole wall of the material passage duct 400 is smoother, the probability of the occurrence of corners and sharp corners is reduced, and dust retention is reduced. In addition, since the air outlet duct 102 is formed concavely in the hole wall of the material passage duct 400, the air outlet duct 102 is a part of the purge air duct 101 that is directly connected to the material passage duct 400. In other words, the air outlet duct 102 is connected to the end of the first connecting channel 104 away from the first main channel 103, that is, the first main channel 103, the first connecting channel 104 and the air outlet duct 102 are connected in sequence to provide positive pressure airflow into the material passage duct 400.

[0058] Furthermore, the air outlet duct 102 can be deflected or tilted toward the side where the dust collection duct 201 is located, so as to drive and guide the dust lifted by the positive pressure airflow to move toward the side where the dust collection duct 201 is located, so as to facilitate the dust collection duct 201 to fully recover the dust.

[0059] Furthermore, the air outlet duct 102 can be arranged on the hole wall of the material passage 400 in an arched shape and extend along the circumferential direction C of the material passage 400 to improve the uniformity of the blowing and dust removal effect.

[0060] See also Figure 6 In one embodiment, the first main channel 103 may be arranged on the outer peripheral side of the feed passage 400 in an arched shape extending along the circumferential direction C1 of the first bridge hole 110 , and a plurality of first connecting channels 104 may be arranged spaced apart and side by side in the circumferential direction C1 of the first bridge hole 110 .

[0061] like Figure 7 , combined with Figure 4 In one embodiment, the first wall portion 320 includes a guide wall 321, which is a partial structure formed by clamping the air outlet 102. The side of the guide wall 321 close to the material passage 400 is relatively far from the side of the material passage 400, and deflects toward the direction where the dust suction air duct 201 is located along the material conveying direction S, so that the air outlet 102 is deflected toward the side where the dust suction air duct 201 is located, and the dust raised will move toward the side where the dust suction air duct 201 is located along with the positive pressure airflow, so that the dust suction air duct 201 can fully recover the dust.

[0062] Furthermore, the guide wall 321 may be deflected in a plane or in a curved surface.

[0063] See also Figure 8 , combined with Figure 3 In one embodiment, the dust suction duct 201 includes a second main channel 203 and a second connecting channel 204, which are interconnected. The second main channel 203 is used to communicate with the negative pressure generator, that is, the second main channel 203 is used to access the negative pressure suction airflow. The second main channel 203 is arranged on the outer peripheral side of the feeding channel 400 in an arched shape along the circumferential direction C of the feeding channel 400. A plurality of second connecting channels 204 are arranged side by side and spaced apart in the circumferential direction C of the feeding channel 400, the second connecting channels 204 are located on the outer peripheral side of the feeding channel 400, and the second connecting channels 204 are distributed on the inner peripheral side of the second main channel 203. That is, in the direction perpendicular to the circumferential direction C of the feeding channel 400, the second main channel 203, the second connecting channel 204 and the feeding channel 400 are distributed in sequence from outside to inside. One end of the second connecting channel 204 is connected to the second main channel 203, and the other end is connected to the feeding channel 400. The second main channel 203 is configured to extend along the above-mentioned circumferential direction C, so that the second main channel 203 can pass through the second connecting channels 204 located at various locations on the circumferential direction C to form a negative pressure suction airflow in the feed channel 400, making the negative pressure dust collection more uniform, so as to fully recover the dust and debris in the feed channel 400.

[0064] Furthermore, the flow area of ​​the second connecting channel 204 is smaller than the flow area of ​​the second main channel 203, so as to improve the dust collection efficiency of the dust suction duct 201. The flow area of ​​the second connecting channel 204 is larger than the flow area of ​​the first connecting channel 104, so that the second connecting channel 204 can collect dust with a relatively large flow rate, thereby improving the dust collection effect.

[0065] See also Figure 8 In one embodiment, the second main channel 203 can be arranged on the outer peripheral side of the feed channel 400 in an arched shape extending along the circumferential direction C2 of the third bridge hole 210, and multiple second connecting channels 204 can be arranged at intervals and side by side in the circumferential direction C2 of the third bridge hole 210.

[0066] See also Figure 7 and Figure 8In one embodiment, the dust suction air duct 201 includes an air inlet duct 202, which is formed concavely in the hole wall of the material passage duct 400, so that the hole wall of the material passage duct 400 is smoother, the probability of the occurrence of corners and sharp corners is reduced, and dust retention is reduced. In addition, since the air inlet duct 202 is formed concavely in the hole wall of the material passage duct 400, the air inlet duct 202 is a part of the dust suction air duct 201 that is directly connected to the material passage duct 400. In other words, the air inlet duct 202 is connected to the side of the second connecting channel 204 away from the second main channel 203, that is, the second main channel 203, the second connecting channel 204 and the air inlet duct 202 are connected in sequence to form a negative pressure suction airflow in the material passage duct 400.

[0067] Furthermore, among the two wall portions forming the air inlet duct 202 , the side close to the feeding channel 400 is opened relatively to the side far away from the feeding channel 400 , so that the air inlet duct 202 is trumpet-shaped, so as to guide the airflow mixed with dust in the feeding channel 400 into the dust suction duct 201 .

[0068] Furthermore, the air inlet duct 202 may be arranged on the hole wall of the material passage 400 in an arch shape and extend along the circumferential direction C of the material passage 400 to evenly suck the dust at various locations in the circumferential direction.

[0069] Regarding the purge air duct 101, in one embodiment, the purge air duct 101 may include only the first main channel 103, that is, the first main channel 103 directly provides a positive pressure airflow into the material passage 400. Alternatively, in another embodiment, the purge air duct 101 may include the first main channel 103 and the outlet channel 102 that are interconnected, and the outlet channel 102 is used to guide the positive pressure airflow output by the first main channel 103 to deflect to the side close to the dust suction air duct 201, so as to facilitate dust collection in the dust suction air duct 201. Alternatively, in another embodiment, the purge air duct 101 may include only the outlet channel 102, and the outlet channel 102 is used to guide the positive pressure airflow provided by the positive pressure generator to deflect to the side close to the dust suction air duct 201, so as to facilitate dust collection in the dust suction air duct 201.

[0070] Regarding the dust suction duct 201, similar to the purge duct 101, in one embodiment, the dust suction duct 201 may only include the second main channel 203, that is, the second main channel 203 directly forms a negative pressure suction airflow in the material passage 400. Alternatively, in another embodiment, the purge duct 101 may include the second main channel 203 and the air inlet duct 202 that are interconnected, and the air inlet duct 202 is used to guide the airflow mixed with dust in the material passage 400 into the dust suction duct 201 to improve the dust collection efficiency. Alternatively, in another embodiment, the purge duct 101 may only include the air inlet duct 202, and the air inlet duct 202 is used to guide the airflow mixed with dust in the material passage 400 into the dust suction duct 201 to improve the dust collection efficiency. Further, the detection device 10 may also include a dust box (not shown in the figure, the same below), which is connected between the dust suction duct 201 and the positive pressure generator to store the recovered dust and debris.

[0071] Please refer again Figure 6 , combined with Figure 3 In one embodiment, the first clamping plate 100 includes a purge wall 120, and the purge wall 120 is used to fit with the substrate 300. The purge wall 120 is recessed with a first main groove 130 and a first connecting groove 140. The first main groove 130 is arranged on the outer peripheral side of the material passage 400 in an arched shape along the circumferential direction C of the material passage 400. A plurality of first connecting grooves 140 are arranged side by side and spaced apart along the circumferential direction C of the material passage 400. The first connecting grooves 140 are located on the outer peripheral side of the material passage 400, and the first connecting grooves 140 are distributed on the inner peripheral side of the first main groove 130. One end of the plurality of first connecting grooves 140 is connected to the first main groove 130, and the other end is connected to the material passage 400. Among them, the first main groove 130 is closed by the substrate 300 to form the first main channel 103, and the first connecting groove 140 is closed by the substrate 300 to form the first connecting channel 104. The first main groove 130 has a greater recessed depth than the first connecting groove 140 , so that the flow area of ​​the formed first main channel 103 is larger than the flow area of ​​the first connecting groove 140 .

[0072] See also Figure 6 and Figure 7 In one embodiment, a plurality of first stoppers 150 are arranged at intervals in the area of ​​the purge wall 120 located on the inner circumference of the first main channel 103, and the first stoppers 150 are used to abut against the first wall portion 320. In addition, the plurality of first stoppers 150 are arranged at intervals along the circumferential direction C1 of the first bridge hole 110, and the intervals between adjacent first stoppers 150 are closed by the substrate 300 to form the first connecting channel 104 as described above.

[0073] Furthermore, the area of ​​the purge wall 120 located on the inner circumference of the first connecting channel 104 is provided with a matching wall 160, and the matching wall 160 and the guide wall 321 are clamped to form the above-mentioned outlet duct 102. The matching wall 160 can be perpendicular to the feeding direction S, or the matching wall 160 can also be deflected to the side where the dust suction duct 201 is located.

[0074] See also Figure 6 In one embodiment, an air inlet hole 170 is opened on the groove wall of the first main groove 130 , and the air inlet hole 170 is used to connect the air joint 500 .

[0075] See also Figure 8 , combined with Figure 3 In one embodiment, the second clamping plate 200 includes a dust collecting wall 220, and the dust collecting wall 220 is used to fit with the substrate 300. The dust collecting wall 220 is recessed with a second main groove 230 and a second connecting groove 240. The second main groove 230 is arranged on the outer peripheral side of the material passage 400 in an arched shape along the circumferential direction C of the material passage 400. A plurality of second connecting grooves 240 are arranged side by side and spaced apart along the circumferential direction C of the material passage 400. The second connecting grooves 240 are located on the outer peripheral side of the material passage 400, and the second connecting grooves 240 are distributed on the inner peripheral side of the second main grooves 230. One end of the plurality of second connecting grooves 240 is connected to the second main grooves 230, and the other end is connected to the material passage 400. Among them, the second main grooves 230 are closed by the substrate 300 to form the second main channel 203, and the second connecting grooves 240 are closed by the substrate 300 to form the second connecting channel 204. The second main groove 230 has a greater recessed depth than the second connecting groove 240 , so that the flow area of ​​the formed second main channel 203 is greater than the flow area of ​​the second connecting groove 240 .

[0076] See also Figure 7 In one embodiment, the dust collecting wall 220 is provided with a plurality of second stoppers 250 arranged at intervals in the area located on the inner circumference of the second main channel 203, and the second stoppers 250 are used to abut against the second wall portion 330. In addition, the plurality of second stoppers 250 are arranged at intervals along the circumferential direction C2 of the third bridge hole 210, and the intervals between adjacent second stoppers 250 are closed by the base plate 300 to form the second connecting channel 204 as described above.

[0077] Furthermore, the depression depth of the second connecting groove 240 can be configured to be greater than the depression depth of the first connecting groove 140, so that the flow area of ​​the second connecting channel 204 is greater than the flow area of ​​the first connecting channel 104. Figure 6 and Figure 8 The interval between adjacent second blocks 250 may also be configured to be greater than the distance between adjacent first blocks 150 , so that the flow area of ​​the second connecting channel 204 is greater than the flow area of ​​the first connecting channel 104 .

[0078] See also Figure 7 and Figure 8 In one embodiment, the dust collecting wall 220 is provided with a first outward expansion wall 260 in the inner peripheral area of ​​the second connecting passage 204. Along the feeding direction S, the second wall portion 330 is provided with a second outward expansion wall 331 in the area aligned with the first outward expansion wall 260. The first outward expansion wall 260 and the second outward expansion wall 331 are sandwiched to form the air inlet 202 as described above, and the inner peripheral sides of the two are opened in a direction away from each other relative to the outer peripheral sides, so that the air inlet 202 is trumpet-shaped.

[0079] See also Figure 8 In one embodiment, a groove wall of the second main groove 230 is provided with an air outlet 270 , and the air outlet 270 is used to connect to the air connector 500 .

[0080] See also Fig. 9 In one embodiment, the number of dust removal structures 14 is multiple, that is, the detection device 10 may include multiple dust removal structures 14, and the multiple dust removal structures 14 are arranged on the bracket 11 at intervals along the reference direction K, and the reference direction K intersects with the feeding direction S. The transfer component 13 is provided with multiple fixtures 13a, and the multiple fixtures 13a are arranged at intervals along the reference direction K. The multiple fixtures 13a correspond to the multiple dust removal structures 14 one by one, so as to carry the multiple workpieces to the multiple material passages 400, and perform dust removal on the workpieces in batches.

[0081] Furthermore, the number of the detection modules 12 can also be multiple, and the multiple detection modules 12 are arranged on the bracket 11 at intervals along the reference direction K, and correspond one by one to the multiple dust removal structures 14. Therefore, after the multiple workpieces complete dust removal along the feeding direction S with the transfer assembly 13, they can further move along the feeding direction S with the transfer assembly 13 to the detection range of the detection module 12. After the workpieces are dusted in batches, the workpieces are further inspected in batches to improve the processing efficiency.

[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-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A detection device, characterized in that: The detection device comprises: Pedestal; A bracket, the bracket is mounted on the base; A dust removal structure, wherein the dust removal structure is provided with a material passage passage for the workpiece to pass through, and the dust removal structure is further provided with a purge air duct and a dust suction air duct respectively connected to the material passage passage, the purge air duct is used to communicate with a positive pressure generator to provide a positive pressure airflow into the material passage passage, and the dust suction air duct is used to communicate with a negative pressure generator to form a negative pressure suction airflow in the material passage passage; A detection module, wherein the detection module is used to detect the workpiece within a detection range; A transfer assembly, the transfer assembly is movably arranged on the base along a feeding direction, and the transfer assembly includes a fixture for picking up the workpiece; Wherein, along the material feeding direction, the dust removal structure and the detection module are respectively arranged on opposite sides of the bracket, and the material passing channel extends along the material feeding direction.

2. The detection device according to claim 1, characterized in that: Along the material conveying direction, the connecting part of the purge air duct and the material passing channel is arranged at intervals from the connecting part of the dust suction air duct and the material passing channel; and the connecting part of the dust suction air duct and the material passing channel is closer to the side where the detection module is located relative to the connecting part of the purge air duct and the material passing channel.

3. The detection device according to claim 1, characterized in that: The dust removal structure comprises a base plate, a first clamping plate and a second clamping plate, wherein the first clamping plate is connected to the base plate and clamped to form the purge channel, and the second clamping plate is connected to the base plate and clamped to form the dust suction duct; Along the feeding direction, the first clamping plate and the second clamping plate are respectively attached to opposite sides of the substrate, and the second clamping plate is closer to the side where the detection module is located than the first clamping plate.

4. The detection device according to claim 3, characterized in that: The purge air duct includes an air outlet duct recessed in the hole wall of the material passing hole, the base plate includes a first wall portion attached to the first clamping plate, the first wall portion includes a guide wall, and the guide wall is a partial structure of the air outlet duct formed by clamping; The side of the guide wall close to the material passing channel is relatively far away from the side of the material passing channel, and deflects toward the direction where the dust suction duct is located along the material conveying direction, so that the air outlet duct deviates toward the side where the dust suction duct is located.

5. The detection device according to claim 3, characterized in that: The dust suction air duct comprises an air inlet duct recessed in the hole wall of the material passing hole; Of the two wall portions used to form the air inlet, a side close to the material passing channel is opened relatively to a side away from the material passing channel, so that the air inlet is in a trumpet shape.

6. The detection device according to claim 3, characterized in that: The purge air duct comprises: A first main channel, the first main channel extending in an arch shape along the circumferential direction of the material passage channel and arranged on the outer peripheral side of the material passage channel, the first main channel being used to communicate with a positive pressure generator; and A first connecting channel, a plurality of the first connecting channels are arranged side by side and spaced apart in the circumferential direction of the material passing channel, and the first connecting channels are located on the outer circumferential side of the material passing channel; Among them, the first connecting channel is distributed on the inner circumference side of the first main channel, the flow area of ​​the first connecting channel is smaller than the flow area of ​​the first main channel, one end of the first connecting channel is connected to the first main channel, and the other end is connected to the material passing channel.

7. The detection device according to claim 6, characterized in that: The first clamping plate comprises a purge wall attached to the base plate, the purge wall is recessed with a first main groove and a first connecting groove, the first main groove is arched and extends along the circumferential direction of the material passage channel and is arranged on the outer peripheral side of the material passage channel, a plurality of the first connecting grooves are spaced and arranged side by side along the circumferential direction of the material passage channel, the first connecting groove is located on the outer peripheral side of the material passage channel, and the first connecting grooves are distributed on the inner peripheral side of the first main groove; The first main groove is closed by the substrate to form the first main channel, and the first connecting groove is closed by the substrate to form the first connecting channel; The depression depth of the first main groove is greater than that of the first connecting groove, so that the flow area of ​​the formed first main channel is greater than that of the first connecting groove.

8. The detection device according to claim 6, characterized in that: The dust suction duct comprises: A second main channel, the second main channel extending in an arch shape along the circumferential direction of the material passing channel and arranged on the outer peripheral side of the material passing channel, the second main channel being used to communicate with a negative pressure generator; and A second connecting channel, a plurality of the second connecting channels are arranged side by side and spaced apart in the circumferential direction of the material passing channel, and the second connecting channels are located on the outer circumferential side of the material passing channel; Among them, the second connecting channel is distributed on the inner circumference side of the second main channel, the flow area of ​​the second connecting channel is smaller than the flow area of ​​the second main channel, the flow area of ​​the second connecting channel is larger than the flow area of ​​the first connecting channel, one end of the second connecting channel is connected to the second main channel, and the other end is connected to the material passing channel.

9. The detection device according to claim 3, characterized in that: The first splint is provided with a first bridge hole, the base plate is provided with a second bridge hole, and the second splint is provided with a third bridge hole, and the first bridge hole, the second bridge hole and the third bridge hole are of the same shape and size; Along the material conveying direction, the first bridge hole, the second bridge hole and the third bridge hole are connected in sequence to form the material passing channel.

10. The detection device according to claim 1, characterized in that: Along the feeding direction, the two ends of the material passage channel are provided with an inlet and an outlet respectively, and a position avoidance opening is provided on one side of the circumference of the material passage channel, and the position avoidance opening extends from the inlet to the outlet along the feeding direction; The avoidance opening is used for a jig carrying the workpiece to pass through, and the material passage is partially closed by the jig when the jig is in the avoidance opening.

11. The detection device according to claim 10, characterized in that: The hole wall on one side of the hole wall of the material passing channel opposite to the avoidance opening is constructed to be in an inwardly concave arc shape.

12. The detection device according to any one of claims 1 to 11, characterized in that: There are multiple dust removal structures, and the multiple dust removal structures are arranged on the bracket at intervals along a reference direction, and the reference direction intersects with the feeding direction. The transfer assembly is provided with multiple jigs, and the multiple jigs are arranged at intervals along the reference direction. The multiple jigs correspond one-to-one with the multiple dust removal structures to transport the multiple workpieces to the multiple material transfer channels.

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