Double-station product appearance color difference detection equipment

Abstract

The invention relates to the technical field of non-standard detection equipment manufacturing, in particular to double-station product appearance color difference detection equipment. The workpiece clamping and transferring line A and the workpiece clamping and transferring line B are arranged on the machine table side by side in the X direction and drive products to be transferred among the feeding station, the detecting station and the discharging station respectively. The product height and color difference detection module stretches across the workpiece clamping and transferring line A and the workpiece clamping and transferring line B at the same time so as to execute height detection and appearance color difference detection. The product height and color difference detection module group gives consideration to two detection stations at the same time, and the workpiece clamping and transferring line A and the workpiece clamping and transferring line B alternately execute color difference detection operation and feeding and discharging operation. Therefore, on one hand, the single-station waiting time is eliminated, and the detection efficiency is improved; and on the other hand, the product height and color difference detection module group gives consideration to two detection stations at the same time, independent configuration is not needed, the consistency of detection quality is ensured through a unified standard, and the adaptability to diversified production scenes is enhanced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of non-standard detection equipment manufacturing, and particularly to a double-station product appearance color difference detection equipment. BACKGROUND

[0002] In the field of industrial product production, especially in the manufacturing process of small and precise parts, in order to meet the diversified use requirements, it is often necessary to design different colors, and color difference detection is a key link to ensure product yield, and it is necessary to screen out defective products whose color does not meet the design requirements.

[0003] In terms of the current industry status, the color difference detection of precise parts is completed by product appearance color difference detection equipment, but the existing detection equipment is mostly designed as a single station. In the detection process, the detection of the next product cannot be carried out until the detection of the previous product is completed and the feeding and discharging are completed, which leads to poor continuity of the overall process, limited number of detections per unit time, low production efficiency, and cannot meet the needs of large-scale production. In addition, the height position of the color difference detection module of the existing equipment is fixed, and it is difficult to adapt to different height products, often requiring manual intervention for calibration or replacement of adaptive detection jigs, which not only increases the operation steps and time cost, but also may affect the detection precision due to adjustment errors, further limiting the compatibility of the equipment for different specifications of products, and it is difficult to meet the efficient detection needs in diversified production scenarios. Thus, the above problems need to be solved by technical personnel. SUMMARY

[0004] The purpose of the present application is to provide a double-station product appearance color difference detection equipment, which aims to solve the problems of low detection efficiency and difficult to guarantee detection quality in the existing design, and meet the needs of industrial production for efficient and accurate color difference detection.

[0005] The present application relates to a double-station product appearance color difference detection equipment, which comprises a machine table, a workpiece clamping and transferring line A, a workpiece clamping and transferring line B, and a product height and color difference detection module.

[0006] The workpiece clamping and transferring line A and the workpiece clamping and transferring line B are both installed on the machine table and arranged side by side along the X direction. The workpiece clamping and transferring line A drives the product to transfer between the feeding station A, the detection station A and the discharging station A, while the workpiece clamping and transferring line B drives the product to transfer between the feeding station B, the detection station B and the discharging station B.

[0007] The product height and color difference detection module is used to perform height detection and appearance color difference detection, and is installed on the machine table and simultaneously spans the workpiece clamping and transferring line A and the workpiece clamping and transferring line B.

[0008] The product height and color difference detection module simultaneously detects the detection station A and the detection station B, and the workpiece clamping and transferring line A and the workpiece clamping and transferring line B alternately perform the color difference detection operation and the feeding and discharging operation: when the product is at the detection station A and is detected by the product height and color difference detection module, the workpiece clamping and transferring line B performs the feeding operation at the feeding station B or the discharging operation at the discharging station B; when the product is at the detection station B and is detected by the product height and color difference detection module, the workpiece clamping and transferring line A performs the feeding operation at the feeding station A or the discharging operation at the discharging station A.

[0009] As a further improvement of the disclosed technical scheme, the workpiece clamping and transferring line A and the workpiece clamping and transferring line B have the same design structure; taking the workpiece clamping and transferring line A as an example, it comprises a Y-direction driving module, an X-direction driving module and a clamping jig; the Y-direction driving module is installed on the machine table, carries and drives the X-direction driving module; the X-direction driving module is used to drive the clamping jig to perform X-direction movement, and is carried by the Y-direction driving module.

[0010] As a further improvement of the disclosed technical scheme, the workpiece clamping and transferring line A further comprises an X-direction sliding rail and sliding block assembly; when the X-direction driving module drives the clamping jig to perform X-direction translational movement, the X-direction sliding rail and sliding block assembly provides a guiding function.

[0011] As a further improvement of the disclosed technical scheme, the clamping jig comprises a carrying frame, a positioning reference seat, a Z-direction suction assembly, an X-direction clamping force generating assembly and a Y-direction clamping force generating assembly; the carrying frame is installed on the X-direction driving module; the positioning reference seat is placed and fixed on the carrying frame, the number of which is N, and is linearly arrayed along the Y-direction; the positioning reference seat is used to temporarily place the product, and simultaneously has an X-direction reference surface and a Y-direction reference surface for positioning the product; the Z-direction suction assembly is arranged at the bottom of the positioning reference seat, and applies a vertical suction force to the product through the suction hole provided at the product placement position; the X-direction clamping force generating assembly and the Y-direction clamping force generating assembly are both installed on the carrying frame, and cooperatively push the product to make it close to and tightly press the X-direction reference surface and the Y-direction reference surface.

[0012] As a further improvement of the disclosed technical scheme, the positioning reference seat is formed with a positioning groove for temporarily placing the product.

[0013] As a further improvement of the disclosed technical solution, the X-direction clamping force generating assembly comprises an X-direction mounting base plate, N X-direction top applying members and an X-direction power unit; the X-direction mounting base plate is located directly above the bearing frame and is arranged in parallel with the bearing frame; the N X-direction top applying members are arranged on the X-direction mounting base plate in the Y-direction and correspond to the positioning reference seat one by one; the X-direction power unit is installed on the basis of the bearing frame and serves as a power source for driving the X-direction mounting base plate to perform X-direction translational motion.

[0014] As a further improvement of the disclosed technical solution, the Y-direction clamping force generating assembly comprises a Y-direction mounting base plate, N Y-direction top applying members and a Y-direction power unit; the Y-direction mounting base plate is located directly above the bearing frame and is arranged in parallel with the bearing frame; the N Y-direction top applying members are arranged on the Y-direction mounting base plate in the Y-direction and correspond to the positioning reference seat one by one; the Y-direction power unit is installed on the basis of the bearing frame and serves as a power source for driving the Y-direction mounting base plate to perform Y-direction translational motion.

[0015] As a further improvement of the disclosed technical solution, the product height and color difference detection module comprises a gantry, a laser height gauge, a bearing frame, a spectrophotometer and a Z-direction power unit; the gantry is installed on the basis of the machine table and spans above the workpiece clamping and moving line A and the workpiece clamping and moving line B; the Z-direction power unit and the bearing frame are installed on the same side of the gantry and are isolated from each other; the laser height gauge is installed on the bearing frame on the side away from the Z-direction power unit and is used for height detection of the product sent to the detection station A or the detection station B; the spectrophotometer is directly carried by the Z-direction power unit and is adjusted in height position based on the real-time height measurement value of the laser height gauge.

[0016] In actual application, the double-station product appearance color difference detection equipment disclosed by the application can achieve the following beneficial technical effects, specifically:

[0017] 1) By arranging the double-station design, i.e., the workpiece clamping and moving line A and the workpiece clamping and moving line B are arranged side by side, the detection operation and the feeding and discharging operation are alternately performed. When the product in one station is detected in the detection station, the other station can simultaneously perform feeding or discharging operation, effectively eliminating the time waste caused by waiting for feeding and discharging in the single-station equipment, significantly improving the detection quantity per unit time, greatly improving the overall detection efficiency, and thus better meeting the needs of large-scale production;

[0018] 2) The product height and color difference detection module can simultaneously consider two detection stations, can respectively perform height detection and appearance color difference detection on products of different stations, does not need to separately configure detection modules for different stations, thereby simplifying the equipment structure, reducing the manufacturing cost, ensuring the continuity and stability of the detection process, ensuring the consistency of the detection quality through unified detection standards, avoiding detection errors caused by differences between multiple modules, and enhancing the adaptability of the equipment to diversified production scenes. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0020] Figure 1 is a perspective view of the double-station product appearance color difference detection equipment disclosed by the present application.

[0021] Figure 2 is a perspective view of the workpiece clamping and transferring line A in the double-station product appearance color difference detection equipment disclosed by the present application.

[0022] Figure 3 is a perspective view of a clamping jig in the double-station product appearance color difference detection equipment disclosed by the present application.

[0023] Figure 4 is a perspective view of another view of the clamping jig in the double-station product appearance color difference detection equipment disclosed by the present application.

[0024] Figure 5 is a perspective view of a view of the clamping jig in the double-station product appearance color difference detection equipment disclosed by the present application (hidden state of X-direction clamping force generating assembly and Y-direction clamping force generating assembly).

[0025] Figure 6 is a perspective view of a view of the clamping jig in the double-station product appearance color difference detection equipment disclosed by the present application (hidden state of bearing frame, positioning reference seat, Z-direction suction assembly and Y-direction clamping force generating assembly).

[0026] Figure 7 is a perspective view of a view of the clamping jig in the double-station product appearance color difference detection equipment disclosed by the present application (hidden state of bearing frame, positioning reference seat, Z-direction suction assembly and X-direction clamping force generating assembly).

[0027] Figure 8is the stereogram of the positioning reference seat in the double-station product appearance color difference detection equipment disclosed by the application.

[0028] Figure 9 is Figure 4 the I partial enlarged view.

[0029] Figure 10 is the stereogram of the workpiece clamping and transferring line B in the double-station product appearance color difference detection equipment disclosed by the application.

[0030] Figure 11 is the stereogram of the product height and color difference detection module in the double-station product appearance color difference detection equipment disclosed by the application.

[0031] Figure 12 is also the stereogram of the product height and color difference detection module in the double-station product appearance color difference detection equipment disclosed by the application (two protective shells matched with the laser height gauge and the spectrometer colorimeter are hidden).

[0032] 1-machine; 2-workpiece clamping and transferring line A; 21-Y direction driving module; 22-X direction driving module; 23-clamping jig; 231-bearing frame; 232-positioning reference seat; 2321-positioning groove; 2322-X direction reference surface; 2323-Y direction reference surface; 233-Z direction adsorption assembly; 234-X direction clamping force generating assembly; 2341-X direction mounting base plate; 2342-X direction top piece; 2343-X direction power part; 235-Y direction clamping force generating assembly; 2351-Y direction mounting base plate; 2352-Y direction top piece; 2353-Y direction power part; 24-X direction sliding rail sliding block assembly; 3-workpiece clamping and transferring line B; 4-product height and color difference detection module; 41-gantry frame; 42-laser height gauge; 43-bearing frame; 44-spectrometer colorimeter; 45-Z direction power part. DETAILED DESCRIPTION

[0033] The content of the application will be further described in detail below in combination with specific embodiments, Figure 1The stereogram of the disclosed double-station product appearance color difference detection equipment shows that it mainly consists of a machine table 1, a workpiece clamping and transferring line A 2, a workpiece clamping and transferring line B 3, and a product height and color difference detection module 4, wherein the workpiece clamping and transferring line A 2 and the workpiece clamping and transferring line B 3 are both installed on the machine table 1 and arranged side by side along the X direction. The workpiece clamping and transferring line A 2 drives the product to transfer between the feeding station A, the detection station A, and the discharging station A, while the workpiece clamping and transferring line B 3 drives the product to transfer between the feeding station B, the detection station B, and the discharging station B. The product height and color difference detection module 4 is used for performing height detection and appearance color difference detection, and it is also installed on the machine table 1 and simultaneously spans the workpiece clamping and transferring line A 2 and the workpiece clamping and transferring line B 3, and takes into account the detection station A and the detection station B. The workpiece clamping and transferring line A 2 and the workpiece clamping and transferring line B 3 alternately perform color difference detection operation and feeding and discharging operation: when the product is in the detection station A and is detected by the product height and color difference detection module 4, the workpiece clamping and transferring line B 3 performs feeding operation at its corresponding feeding station B or discharging operation at the discharging station B; when the product is in the detection station B and is detected by the product height and color difference detection module 4, the workpiece clamping and transferring line A 2 performs feeding operation at its corresponding feeding station A or discharging operation at the discharging station A.

[0034] From the cooperative operation logic of the double-station product appearance color difference detection equipment, the double-station alternating operation mode can minimize the idle time of the equipment. For example, when the workpiece clamping and transferring line A 2 delivers the product to the detection station A, the product height and color difference detection module 4 starts the height detection and appearance color difference detection of the product, the workpiece clamping and transferring line B 3 can simultaneously complete the discharging of the previous batch of products and the feeding of the next batch of products. After the product in the detection station A is detected, the workpiece clamping and transferring line A 2 immediately transfers it to the discharging station A, while the workpiece clamping and transferring line B 3 quickly pushes the newly fed product to the detection station B for detection by the product height and color difference detection module 4. This cycle is repeated to greatly improve the detection throughput per unit time.

[0035] The detection range of the product height and color difference detection module 4 can simultaneously cover the detection station A and the detection station B, and without additional adjustment of its lateral position, it can complete the detection of products in different stations. The layout of the workpiece clamping and transferring line A 2 and the workpiece clamping and transferring line B 3 arranged side by side along the X direction not only ensures the relative independent operation of the detection station A and the detection station B, but also shortens the transfer path of the product below the product height and color difference detection module 4, further improving the compactness of the detection rhythm. The above not only applies to the mass detection of a single type of product, but also can quickly adapt to the detection needs of different specifications of products by adjusting the positioning parameters of the workpiece clamping and transferring line A 2 or / and the workpiece clamping and transferring line B 3, thereby enhancing the versatility and flexibility of the double-station product appearance color difference detection equipment.

[0036] As shown in Figure 1 , Figure 2 , Figure 10 , the workpiece clamping transfer line A2 and the workpiece clamping transfer line B3 have the same design structure. For the sake of saving space, hereinafter, only the workpiece clamping transfer line A2 will be described as an example.

[0037] As shown in Figure 2 , the workpiece clamping transfer line A2 mainly consists of a Y-direction driving module 21, an X-direction driving module 22, a clamping jig 23, and an X-direction sliding rail sliding block assembly 24. Among them, the Y-direction driving module 21 takes the machine table 1 as the installation basis, which serves as the power source for moving along the Y direction, can accurately drive the X-direction driving module 22 and the clamping jig 23 to move as a whole, and ensures that the product can be accurately transferred from the feeding and discharging area to below the detection area. The driving accuracy directly affects the positioning accuracy of the product in the detection station; the X-direction driving module 22 is responsible for driving the clamping jig 23 to move along the X direction, realizing the alignment of different products on the clamping jig 23 with the product height and color difference detection module 4 in turn, cooperating with the Y-direction driving to form a two-dimensional transfer path, and meeting the needs of multiple product detection in turn. The X-direction sliding rail sliding block assembly 24 is arranged in parallel with the X-direction driving module A22, which provides rigid support and guidance for the X-direction movement of the clamping jig A23, effectively reduces the shaking and deviation in the movement process, further improves the transfer accuracy, and ensures that the product is in the preset reference position during detection.

[0038] Here, it is particularly important to note that the clamping jig 23 is the core component that directly carries the product, and can simultaneously stably clamp and position multiple products, avoiding the influence of product deviation on the detection result during the transfer process. As shown in Figures 3-5 , the clamping jig 23 mainly consists of a bearing frame 231, a positioning reference seat 232, a Z-direction suction assembly 233, an X-direction clamping force generating assembly 234, and a Y-direction clamping force generating assembly 235. Among them, the bearing frame 231 serves as the basic bearing structure, taking the X-direction driving module 22 as the installation carrier, and providing a stable installation platform for other components; the number of positioning reference seats 232 is 4, which are linearly arrayed along the Y direction and fixed on the bearing frame 231. As shown in Figure 8 , Figure 9As shown in the middle, the positioning reference seat 232 is provided with a positioning groove 2321 for temporarily placing the product, and a X-direction reference surface 2322 and a Y-direction reference surface 2323 are provided on the positioning groove 2321, which together constitute the positioning reference of the product in the X-Y plane. The Z-direction adsorption assembly 235 is installed at the bottom of the positioning reference seat 232, and the adsorption hole formed through the product placing position applies a vertical adsorption force to the product, thereby stably fixing the product in the Z-direction and preventing the product from jumping or deviating during the transfer process; the X-direction clamping force generating assembly 234 and the Y-direction clamping force generating assembly 235 are both installed on the bearing frame 231, and the two assemblies jointly apply a pushing force to the product from the side, so that the product closely adheres to the X-direction reference surface 2322 and the Y-direction reference surface 2323, thereby realizing accurate positioning of the product in the XY plane and providing a reliable guarantee for the accuracy of subsequent height detection and color difference detection.

[0039] As shown in Figure 3 , Figure 4 and Figure 6 , the X-direction clamping force generating assembly 234 includes an X-direction mounting base plate 2341, an X-direction top applying piece 2342 and an X-direction power part 2343. The X-direction mounting base plate 2341 is located directly above the bearing frame 231 and is arranged in parallel with the bearing frame 231; four X-direction top applying pieces 2342 are arranged on the X-direction mounting base plate 2341 in the Y-direction and correspond to the positioning reference seat 232 one by one, which means that each product can receive independent and corresponding lateral pushing force, thereby ensuring the uniformity and consistency of the force when multiple products are positioned at the same time, and avoiding the problem of positioning deviation due to the large number of products; the X-direction power part 2343 is installed on the bearing frame 231 and provides stable power for the translational motion of the X-direction mounting base plate 2341, and the driving accuracy of the X-direction power part 2343 directly determines the pushing tightness and position accuracy of the X-direction top applying piece 2342 to the product. When the X-direction power part 2343 drives the X-direction mounting base plate 2341 to move in the X-direction, each X-direction top applying piece 2342 moves synchronously.

[0040] As shown in Figure 3 , Figure 4 , Figure 7 , the Y-direction clamping force generating assembly 235 is composed of a Y-direction mounting base plate 2351, a Y-direction top applying piece 2352 and a Y-direction power part 2353. The Y-direction mounting base plate 2351 is located directly above the bearing frame 231 and is arranged in parallel with the bearing frame 231, and is arranged in a staggered manner with the X-direction mounting base plate 2341 to provide a stable mounting reference for each Y-direction top applying piece 2352. Four Y-direction top applying pieces 2352 are arranged on the Y-direction mounting base plate 2351 in the Y-direction and correspond to the positioning reference seat 232 one by one, and can apply independent Y-direction lateral pushing force to each product. The Y-direction power part 2353 is installed on the bearing frame 231 and serves as a power source for driving the Y-direction mounting base plate 2351 to move in the Y-direction.

[0041] When a product is clamped, the X-direction clamping force generating assembly 234 first operates: the X-direction power unit 2343 drives the X-direction mounting base plate 2341 to move in the X-direction. The four X-direction pushers 2342 move synchronously, pushing the product sideways in the X-direction, forcing it to closely adhere to the X-direction reference surface 2322. Simultaneously, the Y-direction clamping force generating assembly 235 cooperates: the Y-direction power unit 2353 drives the Y-direction mounting base plate 2351 and the four Y-direction pushers 2352 to translate in the Y-direction, pushing the product sideways in the Y-direction, forcing it to adhere to the Y-direction reference surface 2323. This completes planar positioning and provides a stable and reliable positioning foundation for subsequent product height and color difference testing.

[0042] like Figure 11 、 12 As shown in the figure, the product height and color difference detection module 4 is mainly composed of several parts such as a gantry 41, a laser altimeter 42, a load-bearing frame 43, a spectrocolorimeter 44 and a Z-direction power unit 45. Among them, the gantry 41 is installed on the machine 1, and it spans above the workpiece clamping and transferring line A2 and the workpiece clamping and transferring line B3. The Z-direction power unit 45 and the load-bearing frame 43 are installed on the same side of the gantry 41 and are independent of each other, thereby effectively avoiding mutual interference between the two during operation and ensuring the accuracy of their respective actions. The laser altimeter 42 is installed on the side of the load-bearing frame 43 away from the Z-direction power unit 45, and can accurately detect the height of products sent to the detection station A or the detection station B, providing accurate reference data for the height adjustment of the spectrocolorimeter 44. The spectrocolorimeter 44 is directly carried by the Z-direction power unit 45 and can dynamically adjust its height position according to the product height value measured in real time by the laser altimeter 42, ensuring that the spectrocolorimeter 44 is always at the optimal detection distance when detecting products of different heights, thereby ensuring the accuracy and stability of the color difference detection results, effectively improving the compatible detection capability of the dual-station product appearance color difference detection equipment for products of different specifications, and further meeting the needs of diversified production scenarios.

[0043] Finally, it should be noted that the present invention also discloses a method for detecting color difference in the appearance of a double-station product, which includes the following steps:

[0044] S1. Ensure that all components on the machine, including the workpiece clamping and transfer line A2, the workpiece clamping and transfer line B3, and the product height and color difference detection module 4 that spans them, are operating normally. In particular, check that the four product positions on each of the two sets of clamping fixtures 23 that are compatible with the workpiece clamping and transfer line A2 and the workpiece clamping and transfer line B3 are clean and the positioning reference surface is accurate. Complete full system calibration before starting the equipment;

[0045] S2, the automatic pick-and-place equipment interfaces with the double-station system, which can simultaneously or at different times place products in the feeding stations A of the workpiece clamping and transferring line A2 and the feeding stations B of the workpiece clamping and transferring line B3, with each feeding station placing 4 products at a time, corresponding to the 4 product positions on the clamping jig 23;

[0046] S3, the clamping jig 23 synchronously performs positioning operations on the 4 products in each feeding station. The 4 X-direction top-pressing pieces 2342 of the X-direction clamping force generating assembly 234 and the 4 Y-direction top-pressing pieces 2352 of the Y-direction clamping force generating assembly 235 synchronously push and tighten each product from the X direction and the Y direction, respectively, so that the 4 products simultaneously adhere to the corresponding X-direction reference surface 2322 and Y-direction reference surface 2323; at the same time, the Z-direction suction assembly 233 applies a vertical suction force to the 4 products through the vacuum suction holes of each product position, achieving synchronous and stable positioning of the 4 products;

[0047] S4, the workpiece clamping and transferring line A2 and the workpiece clamping and transferring line B3 alternately move the positioned 4 products to the detection stations along the X direction. When the workpiece clamping and transferring line A2 moves its 4 products to the detection station A, the workpiece clamping and transferring line B3 is in the feeding or discharging state; after the products in the detection station A complete detection, the workpiece clamping and transferring line A2 moves them to the discharging station A, and at the same time, the workpiece clamping and transferring line B3 immediately moves its 4 products to the detection station B;

[0048] S5, after the products reach the detection stations, the product height and color difference detection module 4 starts detection. The laser height gauge 42 first detects the height of the 4 products in the current detection station in sequence, obtaining the height data of each product; the spectrophotometer 44 adjusts to the appropriate height according to the real-time data of the laser height gauge 42, and then performs appearance color difference detection on the 4 products in sequence. The detection rhythm of the laser height gauge 42 and the spectrophotometer 44 matches the arrangement order of the 4 product positions;

[0049] S6, after detection is completed, the clamping jig 23 moves the 4 products to the discharging station. The discharging equipment classifies the products in each product position according to the detection results, and takes away the qualified and unqualified products respectively, completing discharging;

[0050] S7, the cycle mode of "one-station detection and the other-station feeding and discharging" is maintained. When the 4 products in the detection station A are being detected, the workpiece clamping and transferring line B3 synchronously completes the discharging of the previous batch of 4 products or the feeding of the new batch of 4 products; when the 4 products in the detection station B are being detected, the workpiece clamping and transferring line A2 synchronously performs feeding and discharging operations, achieving seamless connection of the double stations.

[0051] The foregoing description of the disclosed embodiments enables a person skilled in the art to make or use the application. Modifications of these embodiments will occur to persons of skill in the art, and that the appended claims are intended to cover all such modifications that do not depart from the true spirit and scope of the application. Therefore, the application is not limited to the embodiments shown but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A double-station product appearance color difference detection device, characterized in that: It includes the machine, workpiece clamping and transferring line A, workpiece clamping and transferring line B, and product height and color difference detection module; The workpiece clamping and transferring line A and the workpiece clamping and transferring line B are both installed on the machine platform and are arranged side by side along the X direction; wherein, the workpiece clamping and transferring line A drives the transfer of products between the loading station A, the inspection station A and the unloading station A, and the workpiece clamping and transferring line B drives the transfer of products between the loading station B, the inspection station B and the unloading station B; The product height and color difference detection module is used to perform height detection and appearance color difference detection. It is installed on the machine and spans the workpiece clamping and transferring line A and the workpiece clamping and transferring line B at the same time; The product height and color difference detection module takes into account both the detection station A and the detection station B, and the workpiece clamping and transferring line A and the workpiece clamping and transferring line B alternately perform color difference detection operations and loading and unloading operations: when the product is in the detection station A and is detected by the product height and color difference detection module, the workpiece clamping and transferring line B performs loading operations at the loading station B, or performs unloading operations at the unloading station B; when the product is in the detection station B and is detected by the product height and color difference detection module, the workpiece clamping and transferring line A performs loading operations at the loading station A, or performs unloading operations at the unloading station A.

2. The double-station product appearance color difference detection device according to claim 1 is characterized in that: The workpiece clamping and transferring line A and the workpiece clamping and transferring line B have the same design structure; the workpiece clamping and transferring line A includes a Y-axis drive module, an X-axis drive module, and a clamping fixture; the Y-axis drive module is installed on the machine platform, carrying and driving the X-axis drive module; The X-axis driving module is used to drive the clamping fixture to perform X-axis movement, and is carried by the Y-axis driving module.

3. The double-station product appearance color difference detection device according to claim 2 is characterized in that: The workpiece clamping and transferring line A further includes an X-direction slide rail and slider assembly; when the X-direction drive module drives the clamping fixture to perform X-direction translational motion, the X-direction slide rail and slider assembly provides a guiding function.

4. The double-station product appearance color difference detection device according to claim 2, characterized in that: The clamping fixture includes a carrier frame, a positioning reference seat, a Z-direction adsorption component, an X-direction clamping force generating component and a Y-direction clamping force generating component; the carrier frame is installed on the X-direction drive module; the positioning reference seat is placed and fixed on the carrier frame, the number of which is set to N, and is arranged along the Y-direction linear array; the positioning reference seat is used to temporarily place the product, and is provided with an X-direction reference surface and a Y-direction reference surface for product positioning; the Z-direction adsorption component is arranged at the bottom of the positioning reference seat, and applies a vertical adsorption force to the product through the adsorption hole opened at the product placement position; the X-direction clamping force generating component and the Y-direction clamping force generating component are both installed on the carrier frame, and the two work together to push the product sideways so that the product approaches and presses the X-direction reference surface and the Y-direction reference surface.

5. The double-station product appearance color difference detection device according to claim 4 is characterized in that: The positioning reference seat is formed with a positioning groove for temporarily placing products.

6. The double-station product appearance color difference detection device according to claim 4, characterized in that: The X-direction clamping force generating assembly includes an X-direction mounting base, N X-direction top-applying members and an X-direction power unit; the X-direction mounting base is located directly above the carrier frame and is arranged parallel to the carrier frame; the N X-direction top-applying members are arranged on the X-direction mounting base at intervals along the Y direction and correspond one-to-one to the positioning reference seat; the X-direction power unit uses the carrier frame as an installation base and serves as a power source for driving the X-direction mounting base to perform X-direction translational motion.

7. The double-station product appearance color difference detection device according to claim 4, characterized in that: The Y-direction clamping force generating assembly includes a Y-direction mounting base, N Y-direction top-applying members and a Y-direction power unit; the Y-direction mounting base is located directly above the carrier frame and is arranged parallel to the carrier frame; the N Y-direction top-applying members are arranged on the Y-direction mounting base at intervals along the Y direction and correspond one-to-one to the positioning reference seat; the Y-direction power unit uses the carrier frame as an installation base and serves as a power source for driving the Y-direction mounting base to perform Y-direction translational motion.

8. The double-station product appearance color difference detection device according to any one of claims 1 to 7, characterized in that: The product height and color difference detection module includes a gantry, a laser altimeter, a load-bearing frame, a spectrocolorimeter and a Z-direction power unit; the gantry is installed on the machine platform, and spans above the workpiece clamping and transferring line A and the workpiece clamping and transferring line B; the Z-direction power unit and the load-bearing frame are installed on the same side of the gantry and are isolated from each other; the laser altimeter is installed on the side of the load-bearing frame away from the Z-direction power unit, and is used to perform height detection on products sent to the inspection station A or the inspection station B; the spectrocolorimeter is directly carried by the Z-direction power unit, and the height position is adjusted based on the real-time height measurement value of the laser altimeter.

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