Multi-material-number product testing machine and multi-material-number product testing system

Abstract

The invention provides a multi-material-number product testing machine and a multi-material-number product testing system, and relates to the technical field of jig testing, and the multi-material-number product testing machine comprises the steps that a photographing alignment mechanism identifies product features in each tray; the loading and unloading mechanism grabs a to-be-tested first product at a loading position and loads the to-be-tested first product to a current to-be-tested position, and at the same time, a tested second product is unloaded from the current tested position to the tray unit at the unloading position; the tray alternating mechanism controls the tray units located at the feeding position and the tray units located at the discharging position to move oppositely to exchange the positions, so that the tray units for feeding operation and the tray units for discharging operation of each product are the same. The jig disc mechanism controls the four stations to rotate, so that the different stations are located at the current to-be-tested position and the current tested position respectively, synchronous testing is conducted on at least one product located at the to-be-tested position, and the technical problem that the product jig testing efficiency is low is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of jig testing, and in particular to a multi-material number product testing machine and a multi-material number product testing system. Background Art

[0002] In actual test application scenarios, common test equipment is mainly manual special fixtures and automatic special fixtures. Such equipment is highly professional, occupies a large area, is costly, has a single test product, and has poor versatility.

[0003] The inventors have discovered that, in order to solve the above-mentioned problems, the volume and floor space of the testing equipment have been reduced, but each testing device can only meet the needs of products with a single material number. That is, if it is necessary to change the test to a product with a different material number, most of the testing modules in the current testing equipment need to be replaced, which cannot meet the universality of the test. In addition, each time the test module is replaced, the material needs to be loaded and unloaded for debugging, which increases time and labor costs. Summary of the invention

[0004] The object of the present invention is to provide a multi-material number product testing machine and a multi-material number product testing system to alleviate the technical problem of low product fixture testing efficiency existing in the prior art.

[0005] In a first aspect, an embodiment of the present invention provides a multi-part number product testing machine, including a tray alternating mechanism, a loading and unloading mechanism, a photographing and positioning mechanism, and a jig disc mechanism;

[0006] The camera alignment mechanism identifies the product features in each tray; wherein the product features include product material number, product size and product position;

[0007] The loading and unloading mechanism grabs the first product to be tested in the tray unit at the loading position and loads it to the current position to be tested based on the product characteristics of the first product, and at the same time unloads the tested second product from the current tested position to the tray unit at the unloading position based on the product characteristics of the second product; wherein each tray unit has two trays, each of which is used to place a product;

[0008] The tray alternating mechanism controls the first tray unit at the loading position and the second tray unit at the unloading position to exchange positions by moving toward each other, so that the tray unit for loading and the tray unit for unloading of each product are the same;

[0009] The jig disc mechanism controls the four workstations to rotate so that different workstations are respectively located at the current position to be tested and the current tested position, and synchronously tests at least one product located at the position to be tested.

[0010] In combination with the first aspect, an embodiment of the present invention provides a first possible implementation manner of the first aspect, wherein the photographing alignment mechanism includes a first photographing unit, a second photographing unit, and a third photographing unit;

[0011] The first photographing unit collects the first product feature of the first product in each tray of the tray unit currently in the loading position;

[0012] The second photographing unit collects the second product features of the second product in each tray of the tray unit currently in the unloading position;

[0013] The third photographing unit collects third product features of the first product and the second product at a preset position grabbed by the loading and unloading mechanism during the loading process.

[0014] In combination with the first aspect, an embodiment of the present invention provides a second possible implementation of the first aspect, wherein the first photographing unit or the second photographing unit respectively collects image information of each pallet of the pallet unit that is at the loading position or the unloading position at each moment; based on the image information, it is identified whether there is a product on each of the pallets, as well as the product material number and coordinate information corresponding to the product position of each of the products;

[0015] The third product feature collected by the third camera unit is used by the controller to calculate the deviation between the ideal unloading and placement position and the actual unloading and placement position of the first product and the second product, and then correct the unloading operation of the loading and unloading mechanism based on the deviation; wherein, the controller is connected to the multi-material number product testing machine.

[0016] In combination with the first aspect, the embodiment of the present invention provides a third possible implementation of the first aspect, wherein the loading and unloading mechanism includes a loading gripper unit and a unloading gripper unit;

[0017] The feeding gripper unit determines the model type of each first product and the gripper fixing position corresponding to the model type based on the product material number in the first product feature; and grabs the first product for feeding operation according to the product position in the first product feature and the gripper fixing position;

[0018] The unloading gripper unit determines the model type of each second product and the gripper fixing position corresponding to the model type based on the product material number in the second product feature; and grabs the second product for unloading operation according to the product position in the second product feature and the gripper fixing position.

[0019] In combination with the first aspect, an embodiment of the present invention provides a fourth possible implementation of the first aspect, wherein the unloading gripper unit performs a correction operation based on the deviation between the ideal unloading placement position and the actual unloading placement position of the first product and the second product.

[0020] In combination with the first aspect, an embodiment of the present invention provides a fifth possible implementation of the first aspect, wherein the pallet alternating mechanism comprises a synchronous belt, a first pallet unit and a second pallet unit, wherein the first pallet unit is arranged at a higher height relative to the synchronous belt than the second pallet unit;

[0021] When the first products in the first pallet unit have been loaded, the first pallet unit is controlled to move from the loading position to the unloading position under the drive of the synchronous belt, and at the same time, the second pallet unit moves from the unloading position to the loading position.

[0022] In combination with the first aspect, an embodiment of the present invention provides a sixth possible implementation of the first aspect, wherein, when the second product in the second pallet unit is loaded, the loading and unloading mechanism unloads the tested first product to the first pallet unit.

[0023] In combination with the first aspect, an embodiment of the present invention provides a seventh possible implementation of the first aspect, wherein the fixture disc mechanism includes a rotation control module, a rotating disc, and four workstations arranged on the rotating disc;

[0024] Performing synchronous testing on the first product or the second product at each station on the rotating disc;

[0025] When there is an idle workstation on the rotating disc, the rotation control module controls the rotating disc to rotate, and rotates the idle workstation to the current position to be tested, so that the loading and unloading mechanism can load the first product or the second product and then test the first product or the second product; the above operation is repeated until there is no idle workstation on the rotating disc.

[0026] In combination with the first aspect, an embodiment of the present invention provides an eighth possible implementation of the first aspect, wherein, when the first product or the second product that has completed the test exists on the rotating disc, the rotation control module controls the rotating disc to rotate, and rotates the work station where the first product or the second product that has completed the test is located to the currently tested position, so that the loading and unloading mechanism can unload the first product or the second product; the above operations are repeated until the first product or the second product that has completed the test does not exist on the rotating disc.

[0027] In a second aspect, an embodiment of the present invention further provides a multi-material number product testing system, comprising the multi-material number product testing machine as described above, and also comprising a controller connected to the multi-material number product testing machine; the controller communicates with the multi-material number product testing machine via a network port.

[0028] The embodiments of the present invention provide a multi-material number product testing machine and a multi-material number product testing system. Through the camera alignment mechanism, the product features in the tray can be identified. The tray alternation mechanism controls the movement of the tray unit, and controls the loading and unloading mechanism to move to the corresponding position to grab the product from the tray unit for loading and unloading. The fixture disc mechanism controls the rotation of the workstation, so that the idle workstation rotates to the loading position, the loaded product is rotated for testing, and the tested product is rotated to the unloading position. It can meet the needs of simultaneous testing of multiple products at the same time, and the testing equipment also occupies a smaller area, has lower labor costs, is more flexible, and has faster line changes.

[0029] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 A schematic diagram of the structure of a multi-material product testing machine provided by an embodiment of the present invention;

[0033] Figure 2 A schematic diagram of the interactive action flow of a tray alternating mechanism and a fixture disc mechanism provided in an embodiment of the present invention;

[0034] Figure 3 A schematic structural diagram of a tray alternating mechanism provided by an embodiment of the present invention;

[0035] Figure 4 A schematic structural diagram of a loading and unloading mechanism provided in an embodiment of the present invention;

[0036] Figure 5 A structural schematic diagram of a photographing alignment mechanism provided by an embodiment of the present invention;

[0037] Figure 6 A schematic structural diagram of a jig disc mechanism provided by an embodiment of the present invention;

[0038] Figure 7 A schematic structural diagram of another jig disc mechanism provided by an embodiment of the present invention;

[0039] Figure 8 A schematic diagram of the appearance structure of a multi-material product testing machine provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] Current testing equipment cannot meet the testing efficiency requirements for products with multiple material numbers. Based on this, an embodiment of the present invention provides a multi-material number product testing machine and a multi-material number product testing system, which can test products with multiple material numbers at the same time and have higher line change efficiency.

[0042] The following is a detailed description through examples.

[0043] Figure 1 A schematic structural diagram of a multi-material product testing machine provided in an embodiment of the present invention.

[0044] like Figure 1 As shown, the multi-material product testing machine includes a tray alternating mechanism 1, a loading and unloading mechanism 2, a photographing and positioning mechanism 3 and a fixture disc mechanism 4;

[0045] The camera alignment mechanism 3 identifies the product features in each tray; wherein the product features include product material number, product size and product position; the material numbers of the products in each tray may be the same or different, and even if multiple products with different material numbers are included in the embodiment of the present invention, synchronous testing can be achieved;

[0046] The loading and unloading mechanism 2 grabs the first product to be tested in the tray unit at the loading position based on the product characteristics of the first product and loads it to the current position to be tested, and at the same time, based on the product characteristics of the second product, unloads the tested second product from the current tested position to the tray unit at the unloading position; wherein each tray unit has two trays, each tray is used to place a product, and each tray generally places one product;

[0047] The pallet alternating mechanism 1 controls the first pallet unit at the loading position and the second pallet unit at the unloading position to exchange positions by moving toward each other, so that the pallet unit for loading and the pallet unit for unloading of each product are the same; here, it can be understood that product A is loaded from the first pallet unit, then when the test of product A is completed through the pallet alternating mechanism 1, it is still unloaded to the first pallet unit.

[0048] The fixture disc mechanism 4 controls the four workstations to rotate so that different workstations are respectively located at the current position to be tested and the current tested position, and synchronously tests at least one product located at the position to be tested.

[0049] In a preferred embodiment of actual application, the characteristics of the products in the pallet can be identified through the camera alignment mechanism, the pallet alternating mechanism controls the movement of the pallet unit, and controls the loading and unloading mechanism to move to the corresponding position to grab the products from the pallet unit for loading and unloading, and the fixture disc mechanism controls the rotation of the workstation, so that the idle workstation rotates to the loading position, the loaded products are rotated for testing, and the tested products are rotated to the unloading position, which can meet the needs of simultaneous testing of multiple products at the same time, and the testing equipment also occupies a smaller area, has lower labor costs, is more flexible, and has faster line changes.

[0050] In some embodiments, the photographing alignment mechanism includes a first photographing unit, a second photographing unit, and a third photographing unit;

[0051] The first photographing unit collects the first product feature of the first product in each tray of the tray unit currently in the loading position;

[0052] The second photographing unit collects the second product characteristics of the second product in each tray of the tray unit currently in the unloading position;

[0053] The third photographing unit collects third product features of the first product and the second product at a preset position grabbed by the loading and unloading mechanism during the loading process.

[0054] Exemplarily, the first photographing unit or the second photographing unit collects image information of each tray of the tray unit that is at the loading position or the unloading position at each moment; identifies whether there is a product on each tray based on the image information; if there is a product, the product number of each product and the coordinate information corresponding to the product position can be identified;

[0055] The third product feature collected by the third camera unit is used by the controller to calculate the deviation between the ideal unloading and placement positions and the actual unloading and placement positions of the first product and the second product, and then correct the unloading operation of the loading and unloading mechanism based on the deviation; wherein the controller is connected to a multi-material number product testing machine.

[0056] like Figure 5 As shown, the photographing alignment mechanism 3 is composed of a material taking Z axis 27, a Z guide rail 28, a first photographing unit and a second photographing unit, etc.; the first photographing unit includes a CCD1 photographing camera and a lens 29, and a CCD1 photographing light source 30, and the second photographing unit includes a CCD2 photographing camera and a lens 31, and a CCD2 photographing light source 32; the function of the material taking Z axis 27 is to ensure that CCD1 and CCD2 are consistent with the height requirements of the pallets when photographing the A / C pallet of the pallet unit arranged on the upper layer and the B / D pallet of the pallet unit arranged on the lower layer; the Z guide rail The function of 28 is to ensure the verticality of the Z axis during the up and down movement; the lenses and cameras of CCD1 camera and lens 29 and CCD2 camera and lens 31 are respectively connected by threads and belong to a whole; the functions of CCD1 camera and lens 29 and CCD2 camera and lens 31 are to scan the product position and calculate the product feature points to accurately guide the loading and unloading mechanism; the function of light source 30 and light source 32 is to make the pictures clearer through fill light during the shooting process of CCD1 camera and lens 29 and CCD2 camera and lens 31.

[0057] Exemplarily, CCD1 can be used to collect the appearance of products arranged at various positions in the upper tray A and the lower tray B to determine whether there are products in the tray. At the same time, the position of a certain feature point of each product is calculated to obtain the precise position coordinates of the product, and it is made into a template and uploaded to the test system through the controller; the coordinate position of each product is sent to the PLC through network port communication, and then the PLC controls the loading and unloading mechanism to grab the product. When the next product needs to be grabbed, the PLC will search for the product coordinates in the template of the test system, and then control the axes of the loading mechanism to move to the parameter position recorded by a product in the template to pick up the material. Similarly, CCD2 collects the position parameters of each product in the upper tray C and the lower tray D; the specific position of the tray can be as follows Figure 2 shown.

[0058] The third camera unit is arranged in the tray automatic alternation mechanism 1, and includes a CCD3 alignment camera lens and a light source 10;

[0059] The CCD3 alignment camera lens and light source 10 are used to ensure that the product on the arm is accurately placed in the test carrier. When the variable-pitch gripper takes the product and moves to the position above CCD3 through the various axes of the loading, CCD3 grabs the detailed feature points of the product, determines the specific position of the product on the test lower mold, and analyzes and calculates the deviation parameters of the product placement position between the product on the gripper and the product on the test lower mold. A template is made and uploaded to the test system, and the PLC is informed of the data of the product that needs to be offset through network communication. The PLC then moves accurately to the product position on the test lower mold 49 according to the parameters for placement, thereby realizing the position correlation correction between CCD3 and the carrier of the fixture disc mechanism.

[0060] In some embodiments, the loading and unloading mechanism includes a loading gripper unit and a unloading gripper unit;

[0061] A feeding gripper unit determines the model type of each first product and the gripper fixed position corresponding to the model type based on the product material number in the first product feature; grabs the first product for feeding operation according to the product position in the first product feature and the gripper fixed position;

[0062] The unloading gripper unit determines the model type of each second product and the gripper fixing position corresponding to the model type based on the product material number in the second product feature; and grabs the second product for unloading operation according to the product position and gripper fixing position in the second product feature.

[0063] The material unloading gripper unit performs a correction operation based on the deviation between the ideal unloading placement position and the actual unloading placement position of the first product and the second product.

[0064] like Figure 4As shown, the loading and unloading mechanism 2 is composed of a loading gripper unit and a unloading gripper unit; the loading gripper unit includes a loading X-axis 15, a loading Z-axis 16, a loading Y-axis 17, a loading rotating platform and a servo motor 18, an upper material picking claw rotating motor 19, and a loading variable-pitch claw hand 20; the unloading gripper unit includes an unloading X-axis 21, a unloading Z-axis 22, a unloading rotating platform and a servo motor 23, an unloading Y-axis 24, a lower material picking claw rotating motor 25, and an unloading variable-pitch material picking claw hand 26; the loading X-axis 15, the loading Z-axis 16, the loading Y-axis 17, the loading rotating platform and the servo motor The function of 18 is to realize the path change of the product in the XYZR directions during loading by PLC control; the function of the unloading X-axis 21, unloading Z-axis 22, unloading Y-axis 24, unloading rotating platform and servo motor 23 is to realize the path change of the product in the XYZR directions during unloading by PLC control; the function of the loading variable-pitch claw 20 and the unloading variable-pitch material picking claw 26 is to perform adaptive grasping according to the outer dimensions of different identified products; the function of the upper material picking claw rotating motor 19 and the lower material picking claw rotating motor 25 is to meet the grasping requirements when the product is arranged in yin and yang.

[0065] For example, the PLC control system coordinates the loading X-axis 15, the loading Y-axis 17, the loading Z-axis 16, the loading rotating platform and the servo motor 18 (i.e., the loading rotating R-axis), the upper material picking claw rotating motor 19 and the upper variable-pitch claw hand 20 to cooperate with each other to grab the products in the tray; the two grabbing suction cups of the upper variable-pitch claw hand 20 are pulled apart by a corresponding distance through the action of the variable-pitch motor to adapt to different grabbing fixed positions of different products, thereby ensuring that different products can be grabbed without manual intervention. When the product test is completed, the product in the fixture disc mechanism 4 is transferred to a station for unloading, and the test system on the industrial computer displays that the test is completed. The PLC is informed through network communication that the product can be grabbed at a station. The PLC control system controls the unloading X-axis 21, unloading Y-axis 24, unloading Z-axis 22, unloading rotating platform and servo motor 23 (i.e. unloading rotating R-axis), lower picking claw rotating motor 25 and lower variable pitch claw hand 26 to cooperate with each other to pick up the product on the lower mold at that station, i.e. test, and then move to the top of the unloading tray. The PLC retrieves the unloading position coordinates of the current product and controls the claw hand to put the material into the tray at the same time.

[0066] Among them, the pitch-changing claw uses a screw linear stepper motor, and other alternative solutions can also be used to achieve the purpose of pitch change, but are not limited to this, such as belt drive, screw positive and negative pitch-changing linear module, pitch-changing slide, etc.

[0067] It should be noted that the variable-pitch gripper's material-retrieving suction cup can automatically adjust the distance between the suction cups to adapt to different products based on the product coordinates identified by CCD1 and CCD2 and the control of the PLC, thereby improving versatility. When different products need to be grasped, the suction position of each product is different. The suction position coordinates of different models of products can be stored in the PLC system in advance. The role of CCD1 and CCD2 is to take pictures in advance, determine the model of the product, and then inform the PLC of the model of the product to be grasped next time through network communication. The PLC can directly call the stored position coordinates according to the product model, and then control the movement of each loading and unloading axis to the material-retrieving position, and grasp the corresponding position of the product to realize the grasping action.

[0068] As an optional embodiment, in actual application, the photographing and loading process of the photographing alignment mechanism includes the following steps:

[0069] 1. The first camera unit is fixed above the tray unit at the loading position to collect the tray image;

[0070] 2. Before taking pictures, the Y axis moves from the initial position to the safe position;

[0071] 3. The CCD of the pallet is taking pictures;

[0072] 4. After taking the photo, the Y axis moves from the safety position to the material picking position;

[0073] 5. After picking up the material, the XYZR axis moves to the CCD alignment;

[0074] 6. XYZR module moves to the loading position on the carrier to load the material;

[0075] 7. Repeat steps 2-6.

[0076] In some embodiments, the pallet alternating mechanism includes a synchronous belt, a first pallet unit, and a second pallet unit, wherein the first pallet unit is arranged at a higher height relative to the synchronous belt than the second pallet unit;

[0077] When the first products in the first pallet unit have been loaded, the first pallet unit is controlled to move from the loading position to the unloading position under the drive of the synchronous belt, and at the same time, the second pallet unit moves from the unloading position to the loading position.

[0078] When the second product in the second tray unit is being loaded, the loading and unloading mechanism unloads the tested first product to the first tray unit.

[0079] like Figure 3As shown, the automatic pallet alternation mechanism 1 is composed of an NG box 6, four types of pallet fixing base plates 7 (composed of a first pallet unit and a second pallet unit), a servo motor 8, a synchronous belt 9, a CCD3 alignment camera lens and a light source 10, a carrier support guide shaft 11, a bad etching box 12, a pallet adjustable block 13, an X-guide rail 14, etc.; the functions of the NG box 6 and the bad etching box 12 are to store products for different purposes, the function of the servo motor 8 is to drive the synchronous belt 9 to move, the function of the CCD3 alignment camera lens and the light source 10 is to collect product feature points, accurately locate the product shape and coordinate position to the PLC, and ensure that the product can be accurately placed on the test carrier, and the X-guide rail 14 plays a supporting role in the relative movement of the pallets.

[0080] For example, the servo motor 8 controls the synchronous belt 9 to move the two tray units toward each other, thereby realizing the automatic alternation function. Figure 2 As shown, ensure that product A is in the same tray A. For example, when the loading claw takes the product, tray A is in the lower loading position; when the unloading claw puts the product, tray A is in the upper unloading position. Similarly, other trays such as tray B, tray C, and tray D follow this action flow.

[0081] Reference Figure 2 As shown, up to 4 types of products with different material numbers are placed on the trays A to D respectively, and the tray units A&C and B&D are switched to realize loading and unloading of the original trays; the arm 1 (loading gripper unit) of the loading and unloading mechanism is used for loading, and the arm 2 (unloading gripper unit) of the loading and unloading mechanism is used for unloading. Up to 4 types of products with different material numbers can be tested at the same time, saving operation time.

[0082] In some embodiments, the fixture disc mechanism includes a rotation control module, a rotating disc, and four workstations disposed on the rotating disc;

[0083] Synchronously testing the first product or the second product at each station on the rotating disc;

[0084] When there is an idle station on the rotating disc, the rotation control module controls the rotating disc to rotate, and rotates the idle station to the current position to be tested, so that the loading and unloading mechanism can load the first product or the second product and then test the first product or the second product; the above operation is repeated until there is no idle station on the rotating disc;

[0085] Among them, when there is a first product or a second product that has been tested on the rotating disc, the rotation control module controls the rotating disc to rotate, and rotates the work station where the first product or the second product that has been tested is located to the current tested position, so that the loading and unloading mechanism can unload the first product or the second product; repeat the above operations until there is no first product or the second product that has been tested on the rotating disc.

[0086] like Figure 6 and Figure 7 As shown, the fixture disc mechanism 4 is composed of a gas-grid rotary joint 33, a multifunctional test box 34, a PLC network communication module 35, a test pressure cylinder 36, a solenoid valve group 37, a guide shaft and a support 38, a disc origin induction switch 39, a thrust ball bearing 40, a bearing support guide shaft 41, a dividing plate servo motor 42, a disc fixed bottom plate 43, a test function mainboard 44, a function box power socket 45, a disc rotation support shaft 46, a support bearing seat 47, a test upper mold 48, a test lower mold 49, a test fixed disc 50, a cam divider 51, etc.; the function of the gas-grid rotary joint 33 is to connect the external electrical grid to the rotating disc, and the inside and outside do not interfere with each other, and the multifunctional test The test box 34 is used to test the performance and functionality of each product. The function of the PLC network communication module 35 is to connect the PLC control system and the disc control system (rotation control module) for communication; the function of the test pressure cylinder 36 is to realize the pressing of the test upper mold 48 and the test lower mold 49; the function of the solenoid valve group 37 is to control the up and down movement of the pressure cylinder and the conversion between the positive pressure of the intake air and the negative pressure of the suction material; the function of the thrust ball bearing 40 is to support the entire disc during rotation, and the function of the dividing plate servo motor 42 is to control the rotation of the cam divider 51 and the test fixed disc 50; the functions of other guide shafts and supports 38 and guide shafts 41, 46, 47, etc. are all used to support the structure of the entire disc.

[0087] For example, the loading claw grabs the product and puts it into the test lower mold 49-1 of the first station. After the product is placed in the acupuncture point through the vacuum suction and optical fiber on the lower mold, the disc rotates 90 degrees, and after the test lower mold 49-1 is transferred to the second station, the test upper mold 48-1 is pressed down, and the pressure cylinder in place sensor determines that the pressure is in place, and the PLC notifies the test system to start the test. At this time, if the disc turns over and there is no product in the test lower mold 49-2 on the first station, the PLC controls the loading axes to grab the next product and move to the top of the lower mold 49-2 to start loading; if there is a product that has been tested on the test lower mold 49-2 on the first station, the PLC controls the unloading axes to move to the top of the first station lower mold 49-2 to grab the product, and at the same time, the PLC controls the loading axes to grab the next product and move to the vicinity of the first station to wait. After the previous step of grabbing is completed, the loading claw immediately moves to the top of the test lower mold 49-2 to put the product, and the disc starts to rotate to the second station, and the test upper mold 48-2 is pressed down for testing. The process of testing the lower molds 49-3 and 49-4 is completed in sequence.

[0088] The above mechanisms are fixedly connected by processing the base plate, welding the frame and welding the support columns.

[0089] As an optional embodiment, the motion analysis process of the fixture disc mechanism 4 is as follows:

[0090] 1. After the material picking claw loads the material onto the test fixture A carrier, the top plate is pressed down;

[0091] 2. After pressing down, the top plate and carrier plate of fixture A rotate at the same time, and the carrier plate of the next fixture B turns to the loading position. The variable-pitch arm for unloading grabs the tested product, and the variable-pitch arm for loading grabs the product to be tested and puts it into the test carrier plate B;

[0092] 3. Repeat actions 1 and 2. After the top plate and carrier plate of fixture C and fixture D are in place, they rotate simultaneously. The four fixtures do not interfere with each other. While loading and unloading, the second, third and fourth stations are still being tested, which can meet the needs of long-term product testing.

[0093] In some embodiments, the multi-part number product testing machine provided by the embodiment of the present invention also includes an integral welded frame; Figure 8 As shown, the overall welding frame is mainly composed of an electric control cabinet 5, a three-color light 52, an industrial computer 53, operation buttons and a panel 54, a capacitive touch display screen 55, a safety grating 56, a universal support seat 57, etc.

[0094] The automatic pallet alternation mechanism is installed and fixed on the front half of the upper part of the rack electric control cabinet 5. The automatic loading and unloading mechanism 2 is fixed directly above the pallet alternation mechanism by welding support columns, and the camera alignment mechanism is fixed on the top of the rack. Products with up to four material numbers are placed on the pallet A~D positions respectively. The pallet units A&C and B&D switch positions to achieve loading and unloading of the same product on the same pallet. The fixture disc mechanism 4 is fixed on the upper rear half of the rack electric control cabinet 5. The mechanisms of each part are connected by PLC control to meet the required action logic.

[0095] The control of the multi-material product testing machine provided in the embodiment of the present invention is composed of a control cabinet 5, a safety grating 56, an operation button and panel 54, a capacitive touch display screen 55 and an industrial computer 53, and is fixedly assembled on the frame. The control buttons on the operation surface control the operation and stop of the test machine, as well as the alternating replacement of the tray unit. The industrial computer is used to store test information and network connection, data transmission, etc. The emergency stop button of the test machine has an overload protection effect on the current of the entire circuit, and the safety grating protects the entire machine and the operator to ensure safe production. Among them, the four-station test turntable can realize testing while rotating, and the four sets of fixtures are independent of each other and do not interfere with each other, so as to achieve the purpose of automatically producing multiple products at the same time; when the same product needs to be produced, more test points can be added, which occupies less machine and floor space and saves labor costs; when switching different material numbers, only the test upper mold and the test lower mold need to be replaced, and the material number switching is faster and more flexible; and all replaceable modules have ID recognition function to prevent personnel from changing the wrong one and test NG; products are accurately positioned by CCD photography without debugging the loading point; variable-pitch claws are used to meet the requirements of taking up and taking materials for different products of various shapes and sizes, which increases the versatility of the equipment; the gas-grid rotary joint is used to realize the static and dynamic conversion connection between the fixed electrical grid and the rotation of the disc.

[0096] In some embodiments, an embodiment of the present invention also provides a multi-material number product testing system, including the multi-material number product testing machine as described above, and also including a controller connected to the multi-material number product testing machine; the controller communicates with the multi-material number product testing machine through a network port.

[0097] The multi-material number product testing system provided in the embodiment of the present invention has the same technical features as the multi-material number product testing machine provided in the above embodiment, so it can also solve the same technical problems and achieve the same technical effects.

[0098] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0099] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0100] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.

[0101] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0102] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0103] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present invention, which are used to illustrate the technical solutions of the present invention rather than to limit them. The protection scope of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the aforementioned embodiments, those of ordinary skill in the art should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the aforementioned embodiments within the technical scope disclosed by the present invention, or can easily conceive of changes, or make equivalent replacements for some of the technical features therein. Such modifications, changes or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be covered within the protection scope of the present invention.

Claims

1. A multi-material product testing machine, characterized in that: It includes a tray alternating mechanism, a loading and unloading mechanism, a camera alignment mechanism and a jig disc mechanism; The camera alignment mechanism identifies the product features in each tray; wherein the product features include product material number, product size and product position; The loading and unloading mechanism grabs the first product to be tested in the tray unit at the loading position and loads it to the current position to be tested based on the product characteristics of the first product, and at the same time unloads the tested second product from the current tested position to the tray unit at the unloading position based on the product characteristics of the second product; wherein each tray unit has two trays, each of which is used to place a product; The tray alternating mechanism controls the first tray unit at the loading position and the second tray unit at the unloading position to exchange positions by moving toward each other, so that the tray unit for loading and the tray unit for unloading of each product are the same; The jig disc mechanism controls the four workstations to rotate so that different workstations are respectively located at the current position to be tested and the current tested position, and synchronously tests at least one product located at the position to be tested.

2. The multi-material product testing machine according to claim 1, characterized in that: The photographing alignment mechanism comprises a first photographing unit, a second photographing unit and a third photographing unit; The first photographing unit collects the first product feature of the first product in each tray of the tray unit currently in the loading position; The second photographing unit collects the second product features of the second product in each tray of the tray unit currently in the unloading position; The third photographing unit collects third product features of the first product and the second product at a preset position grabbed by the loading and unloading mechanism during the loading process.

3. The multi-material product testing machine according to claim 2, characterized in that: The first photographing unit or the second photographing unit collects image information of each tray of the tray unit that is at the loading position or the unloading position at each moment; based on the image information, identifies whether there is a product on each tray, as well as the product number and coordinate information corresponding to the product position of each product; The third product feature collected by the third camera unit is used by the controller to calculate the deviation between the ideal unloading and placement position and the actual unloading and placement position of the first product and the second product, and then correct the unloading operation of the loading and unloading mechanism based on the deviation; wherein, the controller is connected to the multi-material number product testing machine.

4. The multi-material product testing machine according to claim 2 or 3, characterized in that: The loading and unloading mechanism comprises a loading gripper unit and a unloading gripper unit; The feeding gripper unit determines the model type of each first product and the gripper fixing position corresponding to the model type based on the product material number in the first product feature; and grabs the first product for feeding operation according to the product position in the first product feature and the gripper fixing position; The unloading gripper unit determines the model type of each second product and the gripper fixing position corresponding to the model type based on the product material number in the second product feature; and grabs the second product for unloading operation according to the product position in the second product feature and the gripper fixing position.

5. The multi-part number product testing machine according to claim 4, characterized in that: The unloading gripper unit performs a correction operation based on a deviation between an ideal unloading placement position and an actual unloading placement position of the first product and the second product.

6. The multi-part number product testing machine according to claim 1, characterized in that: The pallet alternating mechanism comprises a synchronous belt, a first pallet unit and a second pallet unit, wherein the first pallet unit is arranged at a higher height relative to the synchronous belt than the second pallet unit; When the first products in the first pallet unit have been loaded, the first pallet unit is controlled to move from the loading position to the unloading position under the drive of the synchronous belt, and at the same time, the second pallet unit moves from the unloading position to the loading position.

7. The multi-part number product testing machine according to claim 6, characterized in that: When the second product in the second tray unit is being loaded, the loading and unloading mechanism unloads the tested first product to the first tray unit.

8. The multi-part number product testing machine according to claim 1, characterized in that: The jig disc mechanism includes a rotation control module, a rotating disc, and four workstations arranged on the rotating disc; Performing synchronous testing on the first product or the second product at each station on the rotating disc; When there is an idle workstation on the rotating disc, the rotation control module controls the rotating disc to rotate, and rotates the idle workstation to the current position to be tested, so that the loading and unloading mechanism can load the first product or the second product and then test the first product or the second product; the above operation is repeated until there is no idle workstation on the rotating disc.

9. The multi-material product testing machine according to claim 8, characterized in that: When the first product or the second product that has been tested is present on the rotating disc, the rotation control module controls the rotating disc to rotate, and rotates the workstation where the first product or the second product that has been tested is located to the currently tested position, so that the loading and unloading mechanism can unload the first product or the second product; the above operation is repeated until the first product or the second product that has been tested is no longer present on the rotating disc.

10. A multi-material product testing system, characterized in that: It includes a multi-material number product testing machine as described in any one of claims 1-9, and also includes a controller connected to the multi-material number product testing machine; the controller communicates with the multi-material number product testing machine through a network port.

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