Detection device

Abstract

The utility model discloses detection equipment. The detection equipment comprises a rack, a first moving die and a first organ cover assembly, the rack is provided with a conveying area, a detection area and a first mounting area; the conveying area and the detection area are both located in the rack, the conveying area is located above the detection area, the detection area and the installation area are sequentially arranged in the horizontal direction, the first movement module is installed in the installation area, the first organ cover assembly is installed on the rack, and the second movement module is installed in the installation area. The first organ cover assembly is vertically arranged and located between the first movement module and the detection area, and the first movement module is in transmission connection with the first organ cover assembly so that the first organ cover assembly can stretch out and draw back. According to the utility model, solder paste, small devices, dust and the like can be prevented from falling and accumulating on the organ cover, and the movement of the linear module is prevented from being influenced.

Description

Technical Field

[0001] This utility model relates to the technical field of circuit board testing, and in particular to a testing device. Background Technology

[0002] Existing AOI optical inspection equipment can be used to detect defects on the surface of circuit boards (PCBs). The inspection equipment uses a motion module to move imaging components such as cameras to a designated position on the circuit board for defect detection. However, when inspecting the bottom surface of the circuit board, the drive module is located below the circuit board. During the manufacturing process, solder balls and dross inevitably remain on the circuit board occasionally. There is a risk that solder balls, dross, or small components on the circuit board may fall and contaminate the drive module, which can easily affect the smoothness and reliability of the drive module's movement.

[0003] Currently, some testing equipment uses cylindrical bellows covers to protect the lead screw of the linear module. However, this method requires the diameter of the bellows cover to be 2 to 3 times larger than the diameter of the lead screw. During installation, it is necessary to avoid interference between the joint of the cylindrical bellows cover and the nut block on the lead screw, other components of the linear module, and other components of the testing equipment, making installation relatively complex. Other testing equipment uses non-enclosed bellows covers, such as U-shaped bellows covers, which prevent solder paste, small components, etc., from falling onto the linear module by laying the bellows cover horizontally above it. However, this method causes solder paste, small components, dust, etc., to fall and accumulate on the bellows cover, hindering its normal expansion and contraction and affecting the movement of the linear module. Utility Model Content

[0004] The purpose of this utility model embodiment is to provide a detection device that can prevent solder paste, small components, dust, etc. from falling and accumulating on the bellows cover, thereby avoiding affecting the movement of the linear module.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A testing device, comprising:

[0007] The frame includes a conveying area, a testing area, and a first installation area; both the conveying area and the testing area are located inside the frame, with the conveying area located above the testing area, and the testing area and the first installation area are arranged sequentially along the horizontal direction.

[0008] The first motion module is installed in the first installation area;

[0009] The first accordion cover assembly is installed in the first installation area;

[0010] The first bellows cover assembly is vertically arranged and located between the first motion module and the detection area. The first motion module is connected to the first bellows cover assembly to enable the first bellows cover assembly to extend and retract.

[0011] Optionally, the frame includes a first support base and a second support base arranged at intervals along the vertical direction. Both the first support base and the second support base are horizontally arranged. The first support base is located below the second support base. The first mounting area is located on the first support base. The first bellows cover assembly is connected to the first support base and the second support base.

[0012] Optionally, the base also has a dustproof part; the first linear module is located below the dustproof part, thereby shielding the top of the first motion module and playing a dustproof role.

[0013] Optionally, the first bellows cover assembly includes a guide frame disposed on the frame, a first bellows cover and a second bellows cover both mounted on the guide frame; the first bellows cover and the second bellows cover are arranged at intervals.

[0014] The first bellows cover has a first connecting end connected to one end of the guide frame, a first movable end slidably disposed on the guide frame in a direction close to or away from the first connecting end, and a first shielding surface;

[0015] The second bellows cover has a second connecting end connected to the other end of the guide frame, a second movable end slidably disposed on the guide frame in a direction close to or away from the second connecting end, and a second shielding surface;

[0016] Both the first shielding surface and the second shielding surface are vertically arranged and located between the first motion module and the detection area. Both the first movable end and the second movable end are connected to the first motion module through transmission. The first motion module is protected by the extension and retraction linkage of the first bellows cover and the second bellows cover.

[0017] Optionally, the first motion module includes a lead screw, a nut seat, and a driver; the first mounting area is provided with a first guide rail, and a first slider connected to the nut seat is slidably mounted on the first guide rail;

[0018] The lead screw is mounted on the frame, the nut seat is slidably mounted on the lead screw, the driver is connected to the lead screw in a transmission connection, and the first movable end and the second movable end are both connected to the nut seat in a transmission connection. The extension and retraction of the first bellows cover and the second bellows cover are realized through the first motion module.

[0019] Optionally, the testing device further includes a connecting seat; the nut seat and the first slider are both connected to the connecting seat, the connecting seat is located between the first movable end and the second movable end, and the first movable end and the second movable end are both directly or indirectly connected to the connecting seat, thereby realizing the connection between the nut seat and the bellows cover.

[0020] Optionally, the testing equipment further includes a first anti-collision pad and a second anti-collision pad installed at intervals on the frame; the connecting seat is slidably disposed between the first anti-collision pad and the second anti-collision pad, and both the first anti-collision pad and the second anti-collision pad are located on the sliding path of the connecting seat to prevent collisions from damaging the testing equipment.

[0021] Optionally, a second motion module is installed on the connecting seat, and the motion direction of the output end of the second motion module is perpendicular to the motion direction of the nut seat, thereby improving the flexibility of the testing equipment.

[0022] Optionally, a first baffle and a second baffle are installed on the crossbeam of the second motion module. The first baffle is connected to the first bellows cover, and the second baffle is connected to the second bellows cover. An avoidance groove is provided on the first baffle or the second baffle, and at least part of the second motion module is located in the avoidance groove to increase the stroke of the second motion module.

[0023] Optionally, a second bellows cover assembly is installed on the second motion module. The output end of the second motion module is connected to the second bellows cover assembly to enable the second bellows cover assembly to extend and retract. The second bellows cover assembly is installed on the side of the first baffle away from the first motion module to avoid interference.

[0024] Optionally, the guide frame includes a first guide beam, a first connecting beam, a second guide beam, and a second connecting beam connected end to end. The first guide beam and the second guide beam are arranged at intervals from top to bottom. The first guide beam has a first guide groove, and the second guide beam has a second guide groove. The extension directions of the first guide groove and the second guide groove are both parallel to the movement direction of the output end of the first motion module. The upper ends of the first bellows cover and the upper ends of the second bellows cover are slidably mounted on the first guide groove, and the lower ends of the first bellows cover and the lower ends of the second bellows cover are slidably mounted on the second guide groove. The first connecting end of the first bellows cover is connected to the first connecting beam, and the second connecting end of the second bellows cover is connected to the second connecting beam, so that the extension and retraction of the first bellows cover and the second bellows cover are more stable.

[0025] Optionally, the first connecting beam is provided with a first folded edge, and the first connecting beam is connected to the first guide beam and the second guide beam through the first folded edge. The second connecting beam is provided with a second folded edge, and the second connecting beam is connected to the first guide beam and the second guide beam through the second folded edge, which facilitates the installation of the first and second bellows covers.

[0026] Optionally, the projection of the first accordion cover along the sliding direction of the first movable end is in the shape of a straight line extending vertically from top to bottom, saving space and improving the dustproof effect.

[0027] Optionally, the second accordion cover has an upper end, a main body, and a lower end arranged sequentially from top to bottom; both the upper end and the lower end are slidably mounted on the guide frame; the projection of the main body along the sliding direction of the second movable end is a vertically extending line shape from top to bottom; the projection of the upper end along the sliding direction of the second movable end is an inverted T-shape; and the projection of the lower end along the sliding direction of the second movable end is a T-shape. The widths of the first shielding surface and the second shielding surface are adjustable, saving space and improving the dustproof effect.

[0028] Optionally, the width of the first blocking surface is greater than the width of the second blocking surface.

[0029] Optionally, the frame is provided with a support base, the support base is equipped with a bearing, one end of the lead screw is installed on the bearing, and the other end of the lead screw is connected to the driver for transmission, so that the lead screw can rotate smoothly.

[0030] Optionally, the frame is provided with a fixed base, the driver is mounted on the fixed base and connected to the lead screw drive, and the fixed base is used to fix the driver.

[0031] Optionally, the frame is equipped with a photoelectric switch to provide motion signals to the first motion module.

[0032] The beneficial effects of this utility model are as follows:

[0033] The testing equipment of this utility model has a first motion module and a testing area set horizontally at an interval, and a first bellows cover assembly is set between the first motion module and the testing area. The first bellows cover assembly separates the first motion module from the circuit board to be tested placed on the testing area. When solder paste, small components, dust, etc. fall on the rack and splash back, they are blocked by the first bellows cover assembly, so they will not fall on the first motion module, thus protecting the first motion module. At the same time, the bellows assembly of this application is set vertically, which avoids the accumulation of solder paste, small components, dust on the bellows cover, and prevents the solder paste, small components, dust, etc. from affecting the normal expansion and contraction of the bellows assembly, thereby preventing the first motion module from failing to operate. Attached Figure Description

[0034] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0035] Figure 1 This is a schematic diagram of the testing equipment.

[0036] Figure 2 This is a side view of the detection device along the Y-axis.

[0037] Figure 3 This is a partial structural diagram of the testing equipment;

[0038] Figure 4 A partial structural schematic diagram of the detection equipment from another perspective;

[0039] Figure 5 This is a structural schematic diagram of the guide frame, lead screw, nut seat, first bellows cover, second bellows cover, driver, first guide rail, and first slider. The first bellows cover and second bellows cover are partial broken views with omitted areas.

[0040] Figure 6 This is an exploded view of the guide frame;

[0041] Figure 7 This is a schematic diagram of the structure of the first bellows cover;

[0042] Figure 8 This is a schematic diagram of the second bellows cover.

[0043] Figure 9 A simplified structural diagram showing the projection of the frame along the X-axis;

[0044] Figure 10 This is a simplified structural diagram of the frame projected along the vertical direction.

[0045] Explanation of reference numerals in the attached figures:

[0046] 10. First motion module; 11. Frame; 12. Lead screw; 13. Nut seat; 14. Guide frame; 15. First bellows cover; 16. Second bellows cover; 17. Driver; 18. First guide rail; 19. First slider; 20. Connecting seat; 21. First anti-collision pad; 22. Second anti-collision pad; 23. Pad block; 24. Second motion module; 25. First baffle; 26. Support seat; 27. Bearing; 28. Fixed seat; 29. ​​Photoelectric switch; 30. Protective cover; 31. Second guide rail; 32. Second slider;

[0047] 111. Inspection area; 112. Dustproof section; 113. Conveying area; 114. First installation area; 115. First support base; 116. Second support base; 117. Second installation area; 118. Third support base; 119. Fourth support base;

[0048] 141. First guide beam; 142. First connecting beam; 143. Second guide beam; 144. Second connecting beam; 145. First folded edge; 146. Second folded edge; 147. First guide groove; 148. Second guide groove;

[0049] 151. First movable end; 152. First connecting end; 153. First shielding surface;

[0050] 161. Second movable end; 162. Second connecting end; 163. Second shielding surface; 164. Upper end; 165. Main body; 166. Lower end;

[0051] 251. Clearance groove. Detailed Implementation

[0052] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0053] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "fixed," "linked," "communicated," "abutting," "clamping," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0054] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0055] In the description herein, it should be understood that the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationships shown in the accompanying drawings, and are used only for ease of description and simplification of operation. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are merely used for distinction in description and have no special meaning.

[0056] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0057] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0058] Unless otherwise stated or defined, the term "and / or" as used in this invention includes any and all combinations of one or more of the associated listed items.

[0059] For ease of description, unless otherwise stated, the terms "up" and "down" in the following text refer to the same direction as "top" and "bottom". Figure 6 Its Z-direction is the same as the left and right directions mentioned below. Figure 6 The X direction is consistent with the forward and backward directions mentioned below. Figure 6 The Y direction is consistent.

[0060] In related technologies, AOI optical inspection equipment typically uses a linear module to drive camera movement to ensure inspection accuracy. The linear module mainly consists of a lead screw and a nut block mounted on the lead screw. AOI optical inspection equipment can be used to inspect circuit boards. After small components are soldered onto a circuit board (PCB), the quality of the circuit board can be inspected using AOI optical inspection equipment. Since the bottom surface of the circuit board needs to be inspected during inspection, and the bottom surface of the circuit board faces the inspection equipment, solder paste or small components may fall onto the lead screw, nut block, and other components of the linear module due to potential soldering quality issues or uncured solder paste. Because the lead screw and other components of the linear module are high-precision parts, the movement of the nut block on the lead screw is easily affected by solder paste, small components, dust, etc., thus affecting the operation of the linear module. Currently, to prevent solder paste, small components, dust, etc., from affecting the movement of the linear module, a bellows cover is generally used. The bellows cover is retractable and is positioned above the linear module. This not only prevents solder paste, small components, dust, etc., from falling onto the linear module but also does not affect the movement and transmission of the linear module. However, the bellows cover of the existing testing equipment is mainly set above the linear module, with the shielding surface of the bellows cover facing upwards. The placement station for placing the circuit board to be tested is located above the shielding surface. The shielding surface can block falling solder paste, small components, dust, etc., but this method will cause solder paste, small components, dust, etc. to accumulate on the bellows cover, causing the bellows cover to be unable to expand and contract normally. This will cause the nut block of the linear module to slide unstably or not slide at all, ultimately affecting the testing of the testing equipment.

[0061] To address the problems in the aforementioned related technologies, this application provides a testing device that is easy to install. By setting up an air duct cover, it can prevent solder paste, small components, dust, etc. from falling onto the linear module or splashing back onto the linear module after falling, thus avoiding affecting the movement of the linear module. At the same time, this application can also prevent solder paste, small components, dust, etc. from accumulating on the air duct cover, thereby preventing the linear module from malfunctioning due to the expansion and contraction of the air duct cover, and ensuring the normal operation of the circuit board testing.

[0062] like Figures 1 to 10As shown, the testing equipment provided in this application includes a frame 11, a first motion module 10 mounted on the frame 11, and a first bellows cover assembly mounted on the frame 11 in a plate shape. The frame 11 has a conveying area 113, a testing area 111, and a first mounting area 114. The conveying area 113 is located above the testing area 111, and the testing area 111 and the first mounting area 114 are arranged sequentially along the horizontal direction. The frame 11 includes a first support base 115 and a second support base 116 arranged vertically at intervals. Both the first support base 115 and the second support base 116 are horizontally arranged, with the first support base 115 located below the second support base 116. The first mounting area 114 is located on the upper surface of the first support base 115. The upper end of the first bellows cover assembly is slidably connected to the first support base 115, and the lower end of the first bellows cover assembly is slidably connected to the second support base 116, so that the first bellows cover assembly encloses the area between the first support base 115 and the second support base 116. The detection area 111 is located between the first installation area 114 and the second installation area 117. The conveying area 113 is located above the detection area 111. The conveying area 113 is used to lay the track so that the circuit board can be conveyed through the track. The detection area 111 is used to set the imaging component. The imaging component moves under the drive of the first motion module 10, so that the bottom surface of the circuit board can be detected.

[0063] The first motion module 10 and the detection area 111 are arranged horizontally at intervals. The first bellows cover assembly is vertically arranged between the first motion module 10 and the detection area 111, and is located on the side of the first mounting area 114 closest to the detection area 111. The first motion module 10 and the first bellows cover assembly are connected by a drive mechanism to allow the first bellows cover assembly to extend and retract, thereby separating the first motion module 10 from the detection area 111. The first bellows cover assembly can continuously shield the first motion module 10, preventing solder paste, small components, dust, etc., from splashing onto the first motion module when they fall onto the rack, thus protecting the first motion module 10. The vertical arrangement of the bellows assembly prevents solder paste, small components, dust, etc., from accumulating on the bellows cover, preventing them from affecting the normal extension and retraction of the bellows assembly, and thus preventing the first motion module 10 from malfunctioning.

[0064] Optionally, the first motion module 10 includes a lead screw 12, a nut seat 13, and a driver 17. The first bellows cover assembly includes a guide frame 14, a first bellows cover 15, and a second bellows cover 16.

[0065] The frame 11 is equipped with a detection area 111 for placing the circuit board to be tested. The detection area 111 can also be passed through by a camera, which passes under the circuit board to be tested. A lead screw 12 is rotatably mounted on the frame 11. The lead screw 12 is horizontally positioned below the detection area 111 and is spaced apart from the detection area 111 in the horizontal direction. The driver 17 is a motor, mounted on the frame 11 and connected to the lead screw 12 for transmission. The nut seat 13 is connected to the first bellows cover 15 and the second bellows cover 16 of the bellows cover assembly. The extension and retraction of the first bellows cover 15 and the second bellows cover 16 are realized through the first motion module. The nut seat 13 is slidably mounted on the lead screw 12 through a threaded connection. A guide frame 14 is provided on the frame 11, and the guide frame 14 provides support and guidance for the first bellows cover 15 and the second bellows cover 16.

[0066] The first bellows cover 15 has a first connecting end 152 connected to one end of the guide frame 14, a first movable end 151 slidably disposed on the guide frame 14 along a direction close to or away from the first connecting end 152, and a first shielding surface 153. The first connecting end 152 is a fixed end, and the first movable end 151 can move horizontally under the action of the nut seat 13, thereby realizing the first bellows cover 15's telescopic movement in the horizontal direction. The first bellows cover 15 is vertically arranged, and the first shielding surface 153 is the surface of the first bellows cover 15 facing directly below the detection area 111. There are multiple first shielding surfaces 153, which are connected sequentially along the telescopic direction of the first bellows cover 15. When the first bellows cover 15 is fully extended, each first shielding surface 153 is located in the same vertical plane. When the first bellows cover 15 is fully retracted, each first shielding surface 153 folds close to each other or stacks radially along the lead screw 12. The second bellows cover 16 has a second connecting end 162 connected to the other end of the guide frame 14, a second movable end 161 slidably disposed on the guide frame 14 along a direction close to or away from the second connecting end 162, and a second shielding surface 163. The second movable end 161 can move horizontally under the action of the nut seat 13, thereby realizing the extension and retraction movement of the second bellows cover 16 in the horizontal direction. The second bellows cover 16 is vertically arranged, and the second shielding surface 163 is the surface of the second bellows cover 16 facing directly below the detection area 111. There are multiple second shielding surfaces 163, which are connected sequentially along the extension and retraction direction of the second bellows cover 16. When the second bellows cover 16 is fully extended, each second shielding surface 163 is located in the same vertical plane. When the second bellows cover 16 is fully retracted, each second shielding surface 163 folds close to each other or stacks radially along the lead screw 12. When the nut seat 13 slides, the first bellows cover and the second bellows cover can be linked to extend and retract, that is, when the first bellows cover extends, the second bellows cover retracts, and when the second bellows cover extends, the first bellows cover retracts, ensuring that the bellows assembly can always separate the detection area and the first motion module 10.

[0067] The first accordion cover 15 and the second accordion cover 16 are arranged alternately. The first connecting end 152 of the first accordion cover 15 is located at the left end of the first accordion cover 15, and the first movable end 151 of the first accordion cover 15 is located at the right end of the first accordion cover 15. The second connecting end 162 of the second accordion cover 16 is located at the right end of the second accordion cover 16, and the second movable end 161 of the second accordion cover 16 is located at the left end of the second accordion cover 16. The first movable end 151 and the second movable end 161 are indirectly or directly connected to the nut block. The first blocking surface 153 and the second blocking surface 163 are both vertically arranged, and both the first blocking surface 153 and the second blocking surface 163 are located between the lead screw 12 and the detection area 111. Thus, the first bellows cover 15 and the second bellows cover 16 of this application can separate the circuit board to be tested from the lead screw 12 and the nut block using the first shielding surface 153 and the second shielding surface 163, preventing solder paste, small components, dust, etc. from falling onto the lead screw 12 and the nut block. Moreover, the first bellows cover 15 and the second bellows cover 16 are installed vertically, so that the first shielding surface 153 of the first bellows cover 15 and the second shielding surface 163 of the second bellows cover 16 are set vertically, avoiding the accumulation of solder paste, small components, dust, etc. on the first bellows cover 15 and the second bellows cover 16 when they fall, maximizing the avoidance of foreign matter depositing on the surface of the bellows cover. The first bellows cover 15 and the second bellows cover 16 can also be extended and retracted normally without frequent cleaning, so that the nut block on the lead screw 12 can drive the camera of the testing equipment to slide smoothly, ensuring that the testing work of the testing equipment is carried out normally.

[0068] Furthermore, the frame 11 also has a dustproof section 112. The lead screw 12 of the first motion module 10 is located below the dustproof section 112. The upper part of the lead screw 12 is shielded by the dustproof section 112 of the frame 11, further improving the dustproof effect. For example, the second support 116 is located directly above the first motion module 10, and the dustproof section 112 is located on the lower end face of the second support 116. In other embodiments, the dustproof section 112 may be located at other positions on the frame 11, or it may be achieved by providing other dust-proof components on the frame 11.

[0069] In one embodiment, the detection device further includes a first guide rail 18 and a first slider 19 slidably mounted on the first guide rail 18. The first guide rail 18 is located in the first mounting area 114, and the first bellows cover assembly is vertically arranged between the first guide rail 18 and the detection area 111. The first slider 19 is connected to the nut seat 13. The extending direction of the first guide rail 18 is parallel to the axial direction of the lead screw 12. By utilizing the guidance of the first guide rail 18, the smoothness of the sliding of the nut block, the telescopic movement of the first bellows cover 15, and the telescopic movement of the second bellows cover 16 is improved.

[0070] During installation, the first guide rail 18, lead screw 12, and guide frame 14 can be independently installed on the frame 11. Compared with the prior art, which requires assembling the first guide rail 18, lead screw 12, guide frame 14, first bellows cover 15, and second bellows cover 16 into a module before installing it onto the frame 11, the installation of this application is simple and has high compatibility.

[0071] Optionally, the frame 11 also has a second mounting area 117. The frame 11 further includes a third support base 118 and a fourth support base 119 arranged vertically at intervals. Both the third and fourth support bases are horizontally arranged. The third support base 118 is located below the fourth support base 119. The first support base 115 is arranged horizontally at intervals with the third support base 118, and the second support base 116 is arranged horizontally at intervals with the fourth support base 119. The second mounting area 117 is located on the upper surface of the third support base 118. The detection area 111 is located between the first mounting area 114 and the second mounting area 117. The first mounting area 114 is provided with a first guide rail, and the second mounting area 117 is provided with a second guide rail 31. Multiple second sliders 32 connected to the nut seat 13 slide on the second guide rail 31. The first guide rail 18 and the second guide rail 31 are arranged horizontally at intervals, which makes the force on the detection device more balanced and allows the imaging component to move smoothly between the first guide rail 18 and the second guide rail 31. Multiple first sliders 19 are slidably mounted on the first guide rail 18 to improve the strength of the connection between the first sliders 19 and the nut block. The guide frame 14, the first bellows cover 15, and the second bellows cover 16 are all located between the first guide rail 18 and the second guide rail 31.

[0072] In one embodiment, the detection device further includes a connecting seat 20. The nut seat 13, the first slider 19, and the second slider 32 are all connected to the connecting seat 20. The connecting seat 20 is located between the first movable end 151 and the second movable end 161, and both the first movable end 151 and the second movable end 161 are connected to the connecting seat 20. The connecting seat 20 not only connects the nut seat 13 and the first slider 19 and seals the gap between the first movable end 151 and the second movable end 161, but can also be used to support components such as cameras.

[0073] Optionally, the testing equipment also includes a first anti-collision pad 21 and a second anti-collision pad 22 spaced apart from each other on the frame 11; the connecting seat 20 is slidably disposed between the first anti-collision pad 21 and the second anti-collision pad 22, and both the first anti-collision pad 21 and the second anti-collision pad 22 are located on the sliding path of the connecting seat 20. The first anti-collision pad 21 and the second anti-collision pad 22 can be mounted on the frame 11 via a pad block 23. The first anti-collision pad 21 is located at the left end of the frame 11, and the second anti-collision pad 22 is located at the right end of the frame 11. By setting the first anti-collision pad 21 and the second anti-collision pad 22, the connecting seat 20 is limited, preventing the connecting seat 20 from colliding with the frame 11 and causing damage.

[0074] Optionally, a second motion module 24 is mounted on the connecting seat 20. The movement direction of the output end of the second motion module 24 is perpendicular to the movement direction of the nut seat 13. The second motion module 24 can be structurally similar to the first motion module 10, and includes a crossbeam and a lead screw, nut seat, etc., mounted on the crossbeam. Specifically, in this embodiment, the movement direction of the output end of the second motion module 24 is radial to the lead screw 12, and the movement direction of the output end of the second motion module 24 is along the front-to-back horizontal direction. The output end of the second motion module 24 is used to connect to the camera, allowing the camera to move left and right and back and forth in the horizontal plane, improving the flexibility of the detection equipment. It is understood that in other embodiments, a second motion module can also be added, with the movement direction of the output end of the second motion module being vertical, allowing the camera to move in three-axis linkage.

[0075] Furthermore, a first baffle 25 and a second baffle are installed on the crossbeam of the second motion module 24. The first baffle 25 is connected to the first bellows cover 15, and one side of the second baffle is connected to the second bellows cover 16. An avoidance groove 251 is provided on the other side of the first baffle 25 or the second baffle. At least part of the second motion module 24 is located in the avoidance groove 251, which increases the stroke of the second motion module and makes the movement path of the output end of the second motion module 24 longer while avoiding interference between the output end of the second motion module 24 and the first baffle 25 or the second baffle. The first baffle 25 can block the gap between the connecting seat 20 and the first bellows cover 15, and the second baffle can block the gap between the connecting seat 20 and the second bellows cover 16, further improving the protection effect on the lead screw 12.

[0076] Optionally, a second bellows cover assembly is installed on the second motion module 24. The output end of the second motion module 24 is connected to the second bellows cover assembly to enable the second bellows cover assembly to extend and retract. The second bellows cover assembly can protect the lead screw of the second motion module 24. The second bellows cover assembly is installed on the side of the first baffle 25 away from the first motion module 10 to avoid interference.

[0077] In one embodiment, the guide frame 14 includes a first guide beam 141, a first connecting beam 142, a second guide beam 143, and a second connecting beam 144 connected end to end. The guide frame 14 is rectangular, with the first guide beam 141 and the second guide beam 143 arranged alternately from top to bottom, and the first connecting beam 142 and the second connecting beam 144 arranged alternately from left to right. A first guide groove 147 is formed on the lower end face of the first guide beam 141, and a second guide groove 148 is formed on the upper end face of the second guide beam 143. The extending directions of the first guide groove 147 and the second guide groove 148 are both parallel to the axial direction of the lead screw 12. The upper ends of the first accordion cover 15 and the second accordion cover 16 are both slidably mounted on the first guide groove 147, and the lower ends of the first accordion cover 15 and the second accordion cover 16 are both slidably mounted on the second guide groove 148. The first connecting end 152 of the first accordion cover 15 is connected to the first connecting beam 142, and the second connecting end 162 of the second accordion cover 16 is connected to the second connecting beam 144. The guide frame 14 guides the first accordion cover 15 and the second accordion cover 16, making the extension and retraction of the first accordion cover 15 and the second accordion cover 16 more stable.

[0078] Furthermore, the first connecting beam 142 is provided with a first folded edge 145, which connects it to the first guide beam 141 and the second guide beam 143. The second connecting beam 144 is provided with a second folded edge 146, which connects it to the first guide beam 141 and the second guide beam 143. The first guide beam 141, the first connecting beam 142, the second guide beam 143, and the second connecting beam 144 are all formed by bending sheet metal. The first connecting beam 142 has a first folded edge 145 at both its upper and lower ends, the second connecting beam 144 has a second folded edge 146 at both its upper and lower ends, the first guide beam 141 has a first extension edge on both its left and right sides, and the second guide beam 143 has a second extension edge on both its left and right sides. The first folded edge 145 at the upper end of the first connecting beam 142 is connected to the first extended edge on the left side of the first guide beam 141 by threaded fasteners. The first folded edge 145 at the lower end of the first connecting beam 142 is connected to the second extended edge on the left side of the second guide beam 143 by threaded fasteners. The second folded edge 146 at the upper end of the second connecting beam 144 is connected to the first extended edge on the right side of the first guide beam 141 by threaded fasteners. The second folded edge 146 at the lower end of the second connecting beam 144 is connected to the second extended edge on the right side of the second guide beam 143 by threaded fasteners. This not only facilitates the installation of the guide frame 14 on the frame 11, but also facilitates the installation and disassembly of the first bellows cover 15 and the guide frame 14, and the second bellows cover 16 and the guide frame 14.

[0079] In one embodiment, the projection of the first accordion cover 15 along the sliding direction of the first movable end 151 is a vertically extending line shape from top to bottom. Compared to a C-shaped accordion cover, the upper surface area of ​​the first accordion cover 15 is smaller, and the upper surface of the first accordion cover 15 can be completely inserted into the first guide groove 147, with dust accumulation avoided by the shielding of the first guide beam 141. At the same time, the width dimension of the first accordion cover 15 along the front-to-back direction is smaller, so the installation space occupied is also smaller, saving installation space.

[0080] In one embodiment, the second accordion cover 16 has an upper end portion 164, a main body portion 165, and a lower end portion 166 arranged sequentially from top to bottom. Both the upper end portion 164 and the lower end portion 166 are slidably mounted on the guide frame 14. The projection of the main body portion 165 along the sliding direction of the second movable end 161 is a vertically extending "I" shape from top to bottom. The projection of the upper end portion 164 along the sliding direction of the second movable end 161 is an inverted T-shape, and the projection of the lower end portion 166 along the sliding direction of the second movable end 161 is a T-shape. The inverted T-shape of the upper end portion 164 facilitates insertion into the first guide groove 147, and the T-shape of the lower end portion 166 facilitates insertion into the second guide groove 148. Simultaneously, the vertically extending "I" shape of the main body portion 165 allows for dust accumulation to be prevented by the shielding effect of the first guide beam 141. Furthermore, the width of the second accordion cover 16 in the front-to-back direction is relatively small, thus requiring less installation space and saving installation space.

[0081] In this application, the axial length of the lead screw 12 is the length dimension of the first bellows cover 15 and the second bellows cover 16, and the radial dimension of the lead screw 12 along the front-to-back direction is the width dimension of the first bellows cover 15 and the second bellows cover 16. The widths of the first blocking surface 153 and the second blocking surface 163 are adjustable. The length dimensions of the first blocking surface 153 of the first bellows cover 15 and the second blocking surface 163 of the second bellows cover 16 can be selected according to the movement stroke of the lead screw 12. Based on the space reserved on the frame 11, the first bellows cover 15 and the second bellows cover 16 with different width dimensions can be selected.

[0082] Optionally, the width of the first shielding surface 153 is greater than the width of the second shielding surface 163, and the first bellows cover 15 is smaller in the width direction. After the first bellows cover 15 is folded down, the space occupied by the first bellows cover 15 in the width direction is also smaller, saving the installation space of the rack 11. In this way, components such as the driver 17 and the mounting base 28 can be installed on one side of the width direction of the first bellows cover 15 and close to the first bellows cover 15, avoiding interference between the first bellows cover 15 and components such as the driver 17 and the mounting base 28.

[0083] Furthermore, the frame 11 is provided with a support base 26, on which a bearing 27 is installed. One end of the lead screw 12 is installed on the bearing 27, and the other end of the lead screw 12 is connected to the output shaft of the driver 17 via a coupling, so that the lead screw 12 can rotate smoothly.

[0084] Optionally, the frame 11 is provided with a fixed base 28, the driver 17 is mounted on the fixed base 28 and connected to the lead screw 12 for transmission, and the fixed base 28 is used to fix the driver 17.

[0085] Optionally, a photoelectric switch 29 is provided on the frame 11. The photoelectric switch 29 provides motion signals to the first motion module. Specifically, a protective cover 30 is provided on the frame 11 to protect the photoelectric switch 29 from falling foreign objects. There are three photoelectric switches 29, two of which are used to provide start and stop signals to the driver 17, respectively, and the other provides the origin position signal of the nut block.

[0086] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. A testing device, characterized in that, include: The frame (11) is provided with a conveying area (113), a detection area (111), and a first installation area (114); the conveying area (113) and the detection area (111) are both located inside the frame (11), the conveying area (113) is located above the detection area (111), and the detection area (111) and the first installation area (114) are arranged sequentially along the horizontal direction; The first motion module (10) is installed in the first installation area (114); The first accordion cover assembly is installed in the first mounting area (114); The first bellows cover assembly is vertically arranged and located between the first motion module (10) and the detection area (111). The first motion module (10) is connected to the first bellows cover assembly to enable the first bellows cover assembly to extend and retract.

2. The detection device according to claim 1, characterized in that, The frame (11) includes a first support base (115) and a second support base (116) arranged at intervals along the vertical direction. The first support base (115) and the second support base (116) are both horizontally arranged. The first support base (115) is located below the second support base (116). The first mounting area (114) is located on the first support base (115). The first bellows cover assembly is connected to the first support base (115) and the second support base (116).

3. The detection device according to claim 1, characterized in that, The first bellows cover assembly includes a guide frame (14) disposed on the frame (11), a first bellows cover (15) and a second bellows cover (16) both mounted on the guide frame (14); the first bellows cover (15) and the second bellows cover (16) are arranged at intervals; The first bellows cover (15) has a first connecting end (152) connected to one end of the guide frame (14), a first movable end (151) slidably disposed on the guide frame (14) in a direction close to or away from the first connecting end (152), and a first shielding surface (153). The second bellows cover (16) has a second connecting end (162) connected to the other end of the guide frame (14), a second movable end (161) slidably disposed on the guide frame (14) in a direction close to or away from the second connecting end (162), and a second shielding surface (163); The first shielding surface (153) and the second shielding surface (163) are both vertically arranged. The first shielding surface (153) and the second shielding surface (163) are both located between the first motion module (10) and the detection area (111). The first movable end (151) and the second movable end (161) are both connected to the first motion module (10) in a transmission manner.

4. The detection device according to claim 3, characterized in that, The first motion module (10) includes a lead screw (12), a nut seat (13), a driver (17), and a connecting seat (20); the first mounting area (114) is provided with a first guide rail (18), and a first slider (19) is slidably mounted on the first guide rail (18); The lead screw (12) is mounted on the frame (11), the nut seat (13) is slidably mounted on the lead screw (12), the driver (17) is drivenly connected to the lead screw (12), the first movable end (151) and the second movable end (161) are both drivenly connected to the nut seat (13); the nut seat (13) and the first slider (19) are both connected to the connecting seat (20), the connecting seat (20) is located between the first movable end (151) and the second movable end (161), and the first movable end (151) and the second movable end (161) are both directly or indirectly connected to the connecting seat (20).

5. The detection device according to claim 4, characterized in that, A second motion module (24) is installed on the connecting seat (20), and the direction of the second motion module (24) is perpendicular to the direction of movement of the nut seat (13). A first baffle (25) and a second baffle are installed on the crossbeam of the second motion module (24). One side of the first baffle (25) is connected to the first bellows cover (15), and the second baffle is connected to the second bellows cover (16). A clearance groove (251) is provided on the other side of the first baffle (25), and at least part of the second motion module (24) is located in the clearance groove (251).

6. The detection device according to claim 5, characterized in that, The second motion module (24) is equipped with a second bellows cover assembly. The output end of the second motion module (24) is connected to the second bellows cover assembly to enable the second bellows cover assembly to extend and retract. The second bellows cover assembly is installed on the side of the first baffle (25) away from the first motion module (10).

7. The detection device according to claim 4, characterized in that, It also includes a first anti-collision pad (21) and a second anti-collision pad (22) installed at intervals on the frame (11); the connecting seat (20) is slidably disposed between the first anti-collision pad (21) and the second anti-collision pad (22), and the first anti-collision pad (21) and the second anti-collision pad (22) are both located on the sliding path of the connecting seat (20).

8. The testing equipment according to any one of claims 3 to 7, characterized in that, The guide frame (14) includes a first guide beam (141), a first connecting beam (142), a second guide beam (143), and a second connecting beam (144) connected end to end. The first guide beam (141) and the second guide beam (143) are arranged at intervals from top to bottom. The first guide beam (141) has a first guide groove (147), and the second guide beam (143) has a second guide groove (148). The extension direction of the first guide groove (147) and the extension direction of the second guide groove (148) are both perpendicular to the first moving... The output end of the module (10) moves in parallel directions. The upper ends of the first bellows cover (15) and the second bellows cover (16) are both slidably mounted on the first guide groove (147). The lower ends of the first bellows cover (15) and the second bellows cover (16) are both slidably mounted on the second guide groove (148). The first connecting end (152) of the first bellows cover (15) is connected to the first connecting beam (142), and the second connecting end (162) of the second bellows cover (16) is connected to the second connecting beam (144).

9. The testing equipment according to any one of claims 3 to 7, characterized in that, The projection of the first accordion cover (15) along the sliding direction of the first movable end (151) is a straight line extending vertically from top to bottom.

10. The detection device according to any one of claims 3 to 7, characterized in that, The second accordion cover (16) has an upper end (164), a main body (165), and a lower end (166) arranged sequentially from top to bottom; the upper end (164) and the lower end (166) are both slidably mounted on the guide frame (14); the projection of the main body (165) along the sliding direction of the second movable end (161) is a vertical line extending from top to bottom; the projection of the upper end (164) along the sliding direction of the second movable end (161) is an inverted T-shape; the projection of the lower end (166) along the sliding direction of the second movable end (161) is a T-shape; and the widths of the first shielding surface (153) and the second shielding surface (163) are adjustable.

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