Automatic positioning tool switching equipment for measurement and inspection of machined products

Abstract

The utility model discloses an automatic positioning tool switching device for measurement and inspection of machined products, and the arrangement of a tool switching shift-out system can avoid the problems of a non-standard positioning base and a specific positioning mechanism, and avoids the need of manual positioning mechanism switching during line product switching. The position precision of the positioning mechanism needs to be repeatedly switched and adjusted according to different products; due to the arrangement of the product tool positioning system, the problem of differences among different product tool positioning systems is solved, the difference tolerance of multiple accessory devices is reduced, and the product quality of a wire body is improved; the switching position, the positioning structure and the working position of the product tool positioning system do not interfere with one another, line body production and product positioning tool same-beat synchronous switching are achieved, and the line body production efficiency is improved. Finally, on the premise that the product positioning tool system meets the positioning precision requirement, according to the line body production scheduling plan, lossless switching of the product positioning tool system is achieved, stable productivity output of the line body is provided, and the line body starting rate is increased.

Description

Technical Field

[0001] This utility model relates to an automatic positioning fixture system, and in particular to an automatic positioning fixture switching device for measuring and inspecting machined products. Background Technology

[0002] Positioning fixtures are mechanical structures used to reliably position parts during measurement, ensuring the stability of the part's position during the manufacturing process. They are widely used in applications requiring precise product positioning, such as machining precision in the machining industry and assembly precision in the automated assembly industry. Any situation requiring precise positioning that cannot be achieved through non-physical identification necessitates the use of positioning fixtures to achieve structural positioning and meet the process requirements of stable positioning. The structure of positioning fixtures is limited by factors such as product process, structural characteristics, production capacity control, and batch consistency accuracy control. Therefore, they need to be customized based on the product being measured, designing a positioning structure that meets the specific needs of a particular part or a specific type of part. They are purely non-standard mechanical structures, requiring customized, dedicated operation.

[0003] In automated production lines, excessive positioning fixtures can lead to problems. During mixed-line production or model switching, the high precision requirements of these fixtures often prevent them from meeting the needs for rapid line integration. This necessitates repeated manual calibration and testing. Excessive fixture switching significantly impacts the continuous production of the line and is also limited by the experience of the workers. Utility Model Content

[0004] The purpose of this invention is to provide an automatic positioning tooling switching device for measuring and inspecting machined products. During normal production, it does not affect the production line cycle time and ensures that the positioning tooling system of subsequent products meets the positioning accuracy requirements. Based on the production line scheduling plan, it realizes the lossless switching of the product positioning tooling system, provides stable production capacity output of the production line, improves the production line operating rate, reduces the requirements for worker experience, and increases production capacity.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an automatic positioning tooling switching device for measuring and inspecting machined products, including a frame, a tooling switching and removal system set on the frame, a product positioning tooling system set on the tooling switching and removal system, a positioning tooling in-situ identification and detection device set on the frame, a product loading in-situ detection device set on the frame, and a product detection position lifting and positioning system set on the frame.

[0006] The tooling switching and removal system is arranged in two sets side by side; the tooling switching and removal system includes a slide table mounting frame on the frame, a slide table rail on the slide table mounting frame, a slide table mounting plate slidably mounted on the slide table rail, a slide table drive cylinder between the slide table mounting frame and the slide table mounting plate, two slide table mechanical limiters respectively located at both ends of the slide table mounting frame and used to limit the movement stroke of the slide table mounting plate, two position detection switches respectively located at both ends of the two slide table mounting frames and used to detect the position of the slide table mounting plate, and two sets of tapered positioning pin shafts respectively located at both ends of the slide table mounting plate and used to position the installation position of the product positioning tooling system;

[0007] The product positioning fixture system is equipped with multiple tapered positioning pin assemblies for mounting on any of the fixture switching and removal systems. The product positioning fixture system includes a positioning fixture mounting plate resting on the tapered positioning pin assemblies, a product positioning mold for downward installation and limiting of the workpiece, multiple positioning support rods mounted on the positioning fixture mounting plate to support various parts of the product positioning mold, multiple positioning guide blocks mounted on the positioning fixture mounting plate to abut against the periphery of the product positioning mold, angle positioning components mounted on the positioning fixture mounting plate and embedded in positioning grooves on the periphery of the product positioning mold for radial limiting, and multiple switching lifting rings mounted on the positioning fixture mounting plate. The periphery of the product positioning molds with different structures designed for different products is provided with positioning grooves of the same structure.

[0008] The positioning fixture in-situ identification and detection device is provided in four parts. The four positioning fixture in-situ identification and detection devices are respectively set on both sides of the two ends of the combined body of the two fixture switching and removal systems. The four positioning fixture in-situ identification and detection devices are used to detect whether the product positioning fixture system is installed on the four tapered positioning pin shaft groups of the two fixture switching and removal systems.

[0009] When the product positioning fixture system is installed on the tapered positioning pin group of any fixture switching and removal system, the product mounting in-situ detection device is used to detect whether the product is installed on the product positioning fixture system.

[0010] The product inspection position lifting and positioning system includes a mounting column, a system mounting bracket mounted on the mounting column, two mounting blocks mounted on the system mounting bracket, two lifting cylinders positioned between the system mounting bracket and the mounting blocks and driving the mounting blocks to rise and fall, a height limiting component positioned between the system mounting bracket and the mounting blocks and limiting the upward movement of the mounting blocks, and multiple positioning fixture support rods mounted on the mounting blocks. An axial positioning structure is provided between the positioning fixture support rods and the positioning fixture mounting plate to achieve positioning when the product positioning fixture system moves out of the system and to the inspection position of the external inspection equipment, and during the upward movement of the positioning fixture support rods.

[0011] A further feature of this invention is that the opening of the positioning groove of the product positioning mold is conical, and the angle positioning component includes a positioning cylinder mounted on the positioning fixture mounting plate and a wedge-shaped positioning block mounted on the piston rod of the positioning cylinder for embedding into the positioning groove of the product positioning mold; the fixture switching and removal system also includes multiple main power connectors mounted on the slide mounting plate and multiple pneumatic power connectors mounted on the slide mounting plate and respectively communicating with the main power connectors. When the product positioning fixture system is placed on the conical positioning pin group of any fixture switching and removal system, the pneumatic power connectors are connected to the power connectors of the positioning cylinder.

[0012] A further feature of this invention is that: a gap detection energy connector is provided on the positioning fixture mounting plate, and an air pressure and flow detection hole is provided on the product positioning mold; a connecting pipe is provided inside the positioning fixture mounting plate to connect the air pressure and flow detection hole and the gap detection energy connector after the product positioning mold is installed; by connecting an external air pressure sensor to the gap detection energy connector, when the product is installed on the product positioning mold, the air pressure and gas flow are used to monitor whether the product fits the product positioning mold, thereby determining whether the product is installed in place.

[0013] A further feature of this invention is that the height limiting component includes limiting brackets disposed on the system mounting bracket and located on both sides of the mounting block, and lifting limiting blocks disposed on the limiting brackets. Extending blocks are provided on both sides of the mounting block, which are slidably connected to the limiting brackets and used to contact the lifting limiting blocks for limiting during upward movement. Support beams are provided on the two limiting brackets, and two guide rods passing through the mounting block are provided between the support beams and the system mounting bracket.

[0014] A further feature of this invention is that the axial positioning structure includes a plurality of arc-shaped positioning pins disposed at the bottom of the positioning fixture mounting plate, and the top of the positioning fixture support rod is provided with positioning holes for the arc-shaped positioning pins to be inserted.

[0015] A further feature of this invention is that the positioning fixture in-situ identification and detection device includes a detection switch mounting bracket mounted on a frame, a detection sensor mounted on the detection switch mounting bracket, and a protective cover mounted on the frame for protecting the detection switch mounting bracket.

[0016] A further feature of this invention is that the product mounting in-situ detection device is provided in two sets, with each single device detecting two products that can be installed at the same end of the two tooling switching and removal systems. Each device includes four mounting brackets, four angle adjustment brackets mounted on the four mounting brackets, and four photoelectric detection switches mounted on the four angle adjustment brackets. The lines connecting the four mounting brackets form a quadrilateral, with two photoelectric detection switches on opposite diagonals forming a group. The two groups of two photoelectric detection switches on opposite diagonals respectively detect two products that can be installed at the same end of the two tooling switching and removal systems.

[0017] In summary, the beneficial effects of this utility model are:

[0018] (1) Tooling switching and removal system: According to the specific product of the production line, a standard product positioning tooling system can be customized (the structure of the positioning tooling mounting plate that contacts the tooling switching and removal system and the product detection position lifting and positioning system is the same for different products), thereby avoiding the problems of non-standard positioning base and specific positioning mechanism, avoiding the need for manual positioning mechanism switching when switching products on the production line, and avoiding the need to repeatedly switch and adjust the position accuracy of the positioning mechanism according to different products;

[0019] (2) In the product tooling positioning system, the existing technology requires different positioning mechanisms for positioning tooling of different products. The batch accuracy control of the same series and grade parts is affected by the positioning mechanism, which ultimately affects the different product quality of the same type of products on the same line. In this automatic positioning tooling switching equipment, the difference between different product tooling positioning systems is solved by customizing the standard product tooling positioning system of the line (the product positioning tooling system of different products has the same structure at the positioning tooling mounting plate that contacts the tooling switching and removal system and the product detection position lifting and positioning system, and the positioning groove, angle positioning component and other structures on the product positioning mold are the same. Only the product positioning mold is designed and adapted). This reduces the difference tolerance of multiple auxiliary equipment and improves the product quality of the line.

[0020] (3) The switching position, positioning structure and working position of the product tooling positioning system do not interfere with each other, realizing the synchronous switching of production line and product positioning tooling in the same cycle, improving the production efficiency of the line, and increasing the overall line opening rate by 10%.

[0021] (4) The maintenance of the product positioning fixture system, the dual separation of the switching position maintenance and the working position, can realize the inspection, maintenance and other non-process work of the product positioning fixture system without affecting the normal production of the line, and meet the process requirements of production, maintenance and upkeep on the same line and at the same pace.

[0022] (5) The operation method of the automatic positioning tooling switching equipment includes the following steps: (S1) First, the positioning tooling mounting plate of the product positioning tooling system is assembled onto the tapered positioning pin group at one end of the tooling switching and removal system for positioning assembly; the pneumatic power connector of the tooling switching and removal system is manually connected to the power connector of the positioning cylinder; an external air pressure sensor is connected to the gap detection power connector; (S2) The model of the product positioning mold of the product positioning tooling system is compared with the production scheduling requirements by the tooling in-situ identification detection device; (S3) The product is installed on the product positioning mold of the product positioning tooling system, and the product in-situ detection device detects the product. Whether the product is in place is determined by monitoring the air pressure and flow rate of an external air pressure sensor to see if the product fits the product positioning mold, thus determining whether the product is installed correctly. After confirming that the product is installed correctly, the positioning cylinder drives the wedge-shaped positioning block to embed into the positioning groove of the product positioning mold, achieving radial positioning of the product. (S4) In the tooling switching and removal system, the product positioning tooling system and the product are moved to the detection position of the external testing equipment by a slide table drive cylinder. (S5) When the product arrives at the detection position of the external testing equipment, the lifting and lowering positioning system of the product detection position is activated. The cylinder drives the mounting block and positioning fixture support rod to move upward, achieving precise positioning of the positioning fixture mounting plate of the product positioning fixture system through the axial positioning structure, eliminating the repetitive position problem caused by the fixture switching and removal system, and avoiding affecting the detection accuracy; (S6) After the product is inspected by external testing equipment, the product detection position lifting and positioning system is reset, so that the product positioning fixture system is placed back on the tapered positioning pin group at one end of the fixture switching and removal system. The slide table drive cylinder drives the fixture mounting plate, product positioning fixture system and product to continue to move to the other end, and remove the inspected product; (S7) In the previous When one end of the tooling switching and removal system completes the operations from step S1 to step S5 for testing, the operations from step S1 to step S3 can be completed at the other end of the next tooling switching and removal system; while the previous tooling switching and removal system is performing step S6, the next tooling switching and removal system is performing the operations from step S4 to step S5; (S8) When an external measuring device is testing the product input into one of the tooling switching and removal systems, the product positioning tooling system on the other tooling switching and removal system can be switched synchronously with different models of product positioning tooling systems according to the production scheduling requirements, without affecting the testing of the products in place. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the structure of this utility model (the product detection position lifting and positioning system is shown in dashed lines);

[0025] Figure 3 This is a schematic diagram of the tooling switching and removal system in this utility model;

[0026] Figure 4 yes Figure 3 A schematic diagram of a local structure based on the basic structure;

[0027] Figure 5 This is a schematic diagram of the product positioning tooling system in this utility model;

[0028] Figure 6 This is a schematic diagram of the positioning fixture in-situ identification and detection device in this utility model;

[0029] Figure 7 This is a schematic diagram of the structure of the product mounting component in-situ detection device in this utility model;

[0030] Figure 8 This is a schematic diagram of the product detection position lifting and positioning system in this utility model;

[0031] Figure 9 yes Figure 8 A schematic diagram of a local structure based on the basic structure;

[0032] Figure 10 This is a partial structural cross-sectional view of the connection between the positioning fixture mounting plate and the positioning fixture support rod.

[0033] Reference numerals: 1. Frame; 2. Tooling switching and removal system; 2-1. Slide table mounting bracket; 2-2. Slide table linear guide; 2-3. Slide table mounting plate; 2-4. Slide table drive cylinder; 2-5. Slide table mechanical limiter; 2-6. Position detection switch; 2-7. Conical positioning pin assembly; 2-8. Main power connector; 2-9. Pneumatic power connector; 3. Product positioning tooling system; 3-1. Positioning tooling mounting plate; 3-2. Product positioning mold; 3-21. Positioning groove; 3-22. Air pressure and flow detection hole; 3-3. Positioning support rod; 3-4. Positioning guide block; 3-5. Angle positioning assembly; 3-51. Positioning cylinder; 3-52. Wedge-shaped positioning block; 3-6. Switching lifting ring; 3-7. Clearance 3-8. Detecting energy connector; 4. Circular arc positioning pin; 5. Positioning fixture in-situ identification and detection device; 6. Detection switch mounting bracket; 7. Detection sensor; 8. Protective cover; 9. Product mounting in-situ detection device; 10. Mounting connection bracket; 2. Angle mounting adjustment bracket; 3. Photoelectric detection switch; 11. Product detection position lifting and positioning system; 12. Mounting column; 13. System mounting bracket; 14. Mounting block; 25. Extension block; 36. Lifting cylinder; 47. Height limit assembly; 58. Limit bracket; 59. Lifting limit block; 60. Positioning fixture support rod; 61. Positioning hole; 62. Support beam; 63. Guide rod. Detailed Implementation

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

[0035] Example: An automatic positioning tooling switching device for measuring and inspecting machined products, such as... Figure 1 and Figure 2 As shown, it includes a frame 1, a tooling switching and removal system 2 mounted on the frame 1, a product positioning tooling system 3 mounted on the tooling switching and removal system 2, a positioning tooling in-situ identification and detection device 4 mounted on the frame 1, a product loading in-situ detection device 5 mounted on the frame 1, and a product detection position lifting and positioning system 6 mounted on the frame 1.

[0036] like Figure 1 , Figure 3 and Figure 4 As shown, the tooling switching and removal system 2 has two sets arranged side by side. The tooling switching and removal system 2 includes a slide table mounting frame 2-1 set on the frame 1, a slide table rail 2-2 set on the slide table mounting frame 2-1, a slide table mounting plate 2-3 slidably set on the slide table rail 2-2, a slide table drive cylinder 2-4 set between the slide table mounting frame 2-1 and the slide table mounting plate 2-3, two slide table mechanical limiters 2-5 respectively set at both ends of the slide table mounting frame 2-1 to limit the movement stroke of the slide table mounting plate 2-3, two position detection switches 2-6 respectively set at both ends of the sliding main frame 2-1 to detect the position of the slide table mounting plate 2-3, two sets of tapered positioning pin shafts 2-7 respectively set at both ends of the slide table mounting plate 2-3 to position the installation position of the product positioning tooling, multiple main power connectors 2-8 set on the slide table mounting plate 2-3, and multiple pneumatic power connectors 2-9 set on the slide table mounting plate 2-3 and respectively communicating with the main power connectors 2-8.

[0037] like Figure 1 , Figure 3 and Figure 5As shown, the product positioning fixture system 3 is equipped with multiple tapered positioning pin groups 2-7 for mounting on any of the fixture switching and removal systems 2. The product positioning fixture system 3 includes a positioning fixture mounting plate 3-1 for resting on the tapered positioning pin groups 2-7, a product positioning mold 3-2 for downward installation and limiting of the workpiece, multiple positioning support rods 3-3 mounted on the positioning fixture mounting plate 3-1 to support various parts of the product positioning mold 3-2, multiple positioning guide blocks 3-4 mounted on the positioning fixture mounting plate 3-1 to abut against the periphery of the product positioning mold 3-2, angle positioning components 3-5 mounted on the positioning fixture mounting plate 3-1 for radial limiting within positioning grooves 3-21 on the periphery of the product positioning mold 3-2, and multiple switching lifting rings 3-6 mounted on the positioning fixture mounting plate 3-1. The periphery of the product positioning molds 3-2, designed for different products and with different structures, is provided with positioning grooves 3-21 of the same structure. The opening of the positioning groove 3-21 of the product positioning mold 3-2 is conical. The angle positioning component 3-5 includes a positioning cylinder 3-51 set on the positioning fixture mounting plate 3-1 and a wedge-shaped positioning block 3-52 set on the piston rod of the positioning cylinder 3-51 and used to be embedded in the positioning groove 3-21 of the product positioning mold 3-2. When the product positioning fixture system 3 is placed on the conical positioning pin group 2-7 of any fixture switching and removal system 2, the pneumatic power connector 2-9 is connected to the power connector of the positioning cylinder 3-51.

[0038] like Figure 5 As shown, a gap detection energy connector 3-7 is provided on the positioning fixture mounting plate 3-1, and a pressure and flow detection hole 3-22 is provided on the product positioning mold 3-2. A connecting pipe is provided inside the positioning fixture mounting plate 3-1 to connect the pressure and flow detection hole 3-22 and the gap detection energy connector 3-7 after the product positioning mold 3-2 is installed. By connecting an external pressure sensor to the gap detection energy connector 3-7, when the product is installed on the product positioning mold 3-2, the pressure and flow rate are used to monitor whether the product is in contact with the product positioning mold 3-2, thereby determining whether the product is installed in place.

[0039] like Figure 1 and Figure 6As shown, four positioning fixture presence detection devices 4 are provided. These four devices are respectively located on both sides of the combined body of the two fixture switching and removal systems 2. The four positioning fixture presence detection devices 4 are used to detect whether the product positioning fixture is installed on the four tapered positioning pin groups 2-7 of the two fixture switching and removal systems 2. The positioning fixture presence detection device 4 includes a detection switch mounting bracket 4-1 mounted on the frame 1, a detection sensor 4-2 mounted on the detection switch mounting bracket 4-1, and a protective cover 4-3 mounted on the frame 1 to protect the detection switch mounting bracket 4-1.

[0040] like Figure 1 and Figure 7 As shown, when the product positioning fixture system 3 is installed on the conical positioning pin group 2-7 of any of the fixture switching and removal systems 2, the product mounting on-site detection device 5 is used to detect whether the product is installed on the product positioning fixture system 3. Two sets of product mounting on-site detection devices 5 are provided. Each set of device 5 can detect two products that can be installed at the same end of the two fixture switching and removal systems 2. The product mounting on-site detection device 5 includes four mounting connecting brackets 5-1, four angle mounting adjustment brackets 5-2 set on the four mounting connecting brackets 5-1, and four photoelectric detection switches 5-3 set on the four angle mounting adjustment brackets 5-2. The lines connecting the four mounting connecting brackets 5-1 form a quadrilateral. The two photoelectric detection switches 5-3 located diagonally form a group, and the two groups of two photoelectric detection switches 5-3 located diagonally respectively detect two products that can be installed at the same end of the two fixture switching and removal systems 2. The structure of the mounting connecting brackets 5-1 varies depending on their installation position.

[0041] like Figure 1 and Figure 8 As shown, the product inspection position lifting and positioning system 6 includes a mounting column 6-1, a system mounting bracket 6-2 mounted on the mounting column 6-1, two mounting blocks 6-3 mounted on the system mounting bracket 6-2, two lifting cylinders 6-4 positioned between the system mounting bracket 6-2 and the mounting blocks 6-3 and driving the mounting blocks 6-3 to lift and lower, a height limiting component 6-5 positioned between the system mounting bracket 6-2 and the mounting blocks 6-3 and limiting the upward movement of the mounting blocks 6-3, and multiple positioning fixture support rods 6-6 mounted on the mounting blocks 6-3. An axial positioning structure is provided between the positioning fixture support rods 6-6 and the positioning fixture mounting plate 3-1 to achieve positioning when the product positioning fixture moves out of the system 2 with the fixture switching and moves to the inspection position of the external inspection equipment, and during the upward movement of the positioning fixture support rods 6-6.

[0042] like Figures 8 to 10As shown, the height limiting assembly 6-5 includes limiting brackets 6-51 mounted on the system mounting bracket 6-2 and located on both sides of the mounting block 6-3, and lifting limiting blocks 6-52 mounted on the limiting brackets 6-51. Extension blocks 6-31 are slidably connected to the limiting brackets 6-51 on both sides of the mounting block 6-3, and are used to contact the lifting limiting blocks 6-52 for limiting during upward movement. Support beams 6-7 are mounted on the two limiting brackets 6-51, and two guide rods 6-8 passing through the mounting block 6-3 are provided between the support beams 6-7 and the system mounting bracket 6-2. The axial positioning structure includes multiple arc-shaped positioning pins 3-8 located at the bottom of the positioning fixture mounting plate 3-1, and positioning holes 6-61 for the arc-shaped positioning pins 3-8 to be inserted into the top of the positioning fixture support rod 6-6.

[0043] like Figures 1 to 10As shown, the method of using the automatic positioning tooling switching device includes the following steps: (S1) First, the positioning tooling mounting plate 3-1 of the product positioning tooling system 3 is assembled onto the tapered positioning pin group 2-7 at one end of the tooling switching and removal system 2 for positioning assembly; the pneumatic power connector 2-9 of the tooling switching and removal system 2 is manually connected to the power connector of the positioning cylinder 3-51; an external air pressure sensor is connected to the gap detection power connector 3-7; (S2) The tooling in-situ identification detection device 4 is used to compare the product positioning tooling system 3 with the tooling in-situ identification detection device 4. Does the model of product positioning mold 3-2 meet the production scheduling requirements? (S3) Install the product on the product positioning mold 3-2 of the product positioning fixture system 3. The product on-site detection device 5 detects whether the product is in place. With the help of an external air pressure sensor, the air pressure and air flow are used to monitor whether the product is in contact with the product positioning mold 3-2, thereby determining whether the product is installed in place. After confirming that the product is installed in place, the positioning cylinder 3-51 drives the wedge-shaped positioning block 3-52 to embed into the positioning groove 3-21 of the product positioning mold 3-2. (S4) In the tooling switching and removal system 2, the tooling mounting plate, the product positioning tooling system 3 and the product are moved to the detection position of the external testing equipment by the slide table drive cylinder 2-4; (S5) When the product arrives at the detection position of the external testing equipment, the lifting cylinder 6-4 of the product detection position lifting and positioning system 6 drives the mounting block 6-3 and the positioning tooling support rod 6-6 to move upward, and the positioning tooling mounting plate 3-1 of the product positioning tooling system 3 is accurately positioned by the axial positioning structure, eliminating the repetitive position problem caused by the tooling switching and removal system 2, and avoiding affecting the detection accuracy; (S6) After the product is inspected by the external testing equipment, the product detection position lifting and positioning system 6 is reset, so that the product positioning tooling system 3 is placed again on the tapered positioning pin group 2-7 at one end of the tooling switching and removal system 2, and the tooling mounting plate, the product positioning tooling system 3 and the product are moved to the other end by the slide table drive cylinder 2-4, and the inspected product is removed. (S7) When the operation of steps S1 to S5 is completed at one end of the previous tooling changeout system 2 for testing, the operation of steps S1 to S3 can be completed at the other end of the next tooling changeout system 2; while the previous tooling changeout system 2 is performing step S6, the next tooling changeout system 2 is performing steps S4 to S5; (S8) When an external measuring device is testing the product input by one of the tooling changeout systems 2, the product positioning tooling system 3 on the other tooling changeout system 2 can be switched synchronously with different models of product positioning tooling system 3 according to the production scheduling requirements, without affecting the testing of the products in place.

[0044] Implementation effect: (1) The tooling switching and removal system 2 can customize a standard product positioning tooling system 3 according to the specific product of the production line (the product positioning tooling system 3 for different products has the same structure as the tooling switching and removal system 2 and the positioning tooling installation plate 3-1 that is in contact with the product detection position lifting and positioning system 6), thereby avoiding the problems of non-standard positioning base and specific positioning mechanism, avoiding the need for manual positioning mechanism switching when switching products on the production line, and avoiding the need to repeatedly switch and adjust the position accuracy of the positioning mechanism according to different products. (2) In the existing product tooling positioning system, different positioning tools for different products require different positioning mechanisms. The batch accuracy control of parts of the same series and grade is affected by the positioning mechanism, which ultimately affects the quality of different products of the same type on the same production line. In this automatic positioning tooling switching equipment, the structure of the positioning tooling mounting plate 3-1 that contacts the tooling switching and removal system 2 and the product detection position lifting and positioning system 6 is the same as that of the product positioning mold 3-2. The positioning groove 3-21 and angle positioning component 3-5 on the product positioning mold 3-2 are also the same. Only the product positioning mold 3-2 is modified. (2) Design adaptation is carried out to solve the difference between different product tooling positioning systems, reduce the difference tolerance of multiple auxiliary equipment, and improve the product quality of the line; (3) The switching position, positioning structure and working position of the product tooling positioning system do not interfere with each other, realize the synchronous switching of the line production and product positioning tooling in the same cycle, improve the production efficiency of the line, and increase the overall opening rate of the line by 10%; (4) The maintenance of the product positioning tooling system 3, the dual separation of the switching position maintenance and the working position, realize the inspection, maintenance and other non-process work of the product positioning tooling system 3 without affecting the normal production of the line, and meet the process requirements of production, maintenance and repair in the same line and in the same cycle.

[0045] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. An automatic positioning tooling switching device for measuring and inspecting machined products, characterized in that: Includes a frame (1), a tooling switching and removal system (2) installed on the frame (1), a product positioning tooling system (3) installed on the tooling switching and removal system (2), a positioning tooling in-situ identification and detection device (4) installed on the frame (1), a product loading in-situ detection device (5) installed on the frame (1), and a product detection position lifting and positioning system (6) installed on the frame (1); The tooling switching and removal system (2) is arranged in two sets side by side; the tooling switching and removal system (2) includes a slide table mounting frame (2-1) set on the frame (1), a slide table rail (2-2) set on the slide table mounting frame (2-1), a slide table mounting plate (2-3) slidably set on the slide table rail (2-2), a slide table drive cylinder (2-4) set between the slide table mounting frame (2-1) and the slide table mounting plate (2-3), two slide table mechanical limiters (2-5) respectively set at both ends of the slide table mounting frame (2-1) and used to limit the movement stroke of the slide table mounting plate (2-3), two position detection switches (2-6) respectively set at both ends of the two slide table mounting frames (2-1) and used to detect the position of the slide table mounting plate (2-3), and two sets of tapered positioning pin shafts (2-7) respectively set at both ends of the slide table mounting plate (2-3) and used to position the installation position of the product positioning tooling system (3); The product positioning fixture system (3) is provided with multiple tapered positioning pin shaft groups (2-7) for installation on any one of the fixture switching and removal systems (2); the product positioning fixture system (3) includes a positioning fixture mounting plate (3-1) for resting on the tapered positioning pin shaft group (2-7), a product positioning mold (3-2) for downward installation and limiting of the workpiece, multiple positioning support rods (3-3) provided on the positioning fixture mounting plate (3-1) and for supporting various parts of the product positioning mold (3-2), and multiple positioning fixtures provided on the positioning fixture. Positioning guide block (3-4) on mounting plate (3-1) and abutting against the periphery of product positioning mold (3-2); angle positioning component (3-5) set on positioning fixture mounting plate (3-1) and used to embed in positioning groove (3-21) on the periphery of product positioning mold (3-2) for radial limiting; multiple switching lifting rings (3-6) set on positioning fixture mounting plate (3-1); positioning grooves (3-21) with the same structure are provided on the periphery of product positioning molds (3-2) with different structures designed for different products; The positioning fixture in-situ identification and detection device (4) is provided in four parts. The four positioning fixture in-situ identification and detection devices (4) are respectively set on both sides of the two ends of the assembly of the two fixture switching and removal systems (2). The four positioning fixture in-situ identification and detection devices (4) are used to detect whether the product positioning fixture system (3) is installed on the four tapered positioning pin groups (2-7) of the two fixture switching and removal systems (2). When the product positioning fixture system (3) is installed on the tapered positioning pin group (2-7) of any fixture switching and removal system (2), the product mounting part in-situ detection device (5) is used to detect whether the product is installed on the product positioning fixture system (3); The product inspection position lifting and positioning system (6) includes a mounting column (6-1), a system mounting bracket (6-2) set on the mounting column (6-1), two mounting blocks (6-3) set on the system mounting bracket (6-2), two lifting cylinders (6-4) set between the system mounting bracket (6-2) and the mounting blocks (6-3) and driving the mounting blocks (6-3) to lift and lower, a height limiting component (6-5) set between the system mounting bracket (6-2) and the mounting blocks (6-3) and limiting the upward movement of the mounting blocks (6-3), and a plurality of positioning tooling support rods (6-6) set on the mounting blocks (6-3). An axial positioning structure is provided between the positioning tooling support rods (6-6) and the positioning tooling mounting plate (3-1) to achieve positioning when the product positioning tooling system (3) moves to the inspection position of the external inspection equipment along with the tooling switching and moving out of the system (2) and during the upward movement of the positioning tooling support rods (6-6).

2. The automatic positioning tooling switching device for measuring and inspecting machined products according to claim 1, characterized in that: The opening of the positioning groove (3-21) of the product positioning mold (3-2) is conical. The angle positioning component (3-5) includes a positioning cylinder (3-51) set on the positioning fixture mounting plate (3-1) and a wedge-shaped positioning block (3-52) set on the piston rod of the positioning cylinder (3-51) and used to be embedded in the positioning groove (3-21) of the product positioning mold (3-2). The tooling switching and removal system (2) also includes a plurality of main power connectors (2-8) set on the slide mounting plate (2-3) and a plurality of pneumatic power connectors (2-9) set on the slide mounting plate (2-3) and respectively communicating with the main power connectors (2-8). When the product positioning fixture system (3) is placed on the conical positioning pin group (2-7) of any tooling switching and removal system (2), the pneumatic power connector (2-9) is connected to the power connector of the positioning cylinder (3-51).

3. The automatic positioning tooling switching device for measuring and inspecting machined products according to claim 2, characterized in that: The positioning fixture mounting plate (3-1) is provided with a gap detection energy connector (3-7), and the product positioning mold (3-2) is provided with a pressure and flow detection hole (3-22). The positioning fixture mounting plate (3-1) is provided with a connecting pipe that connects the pressure and flow detection hole (3-22) and the gap detection energy connector (3-7) after the product positioning mold (3-2) is installed. By connecting an external pressure sensor to the gap detection energy connector (3-7), when the product is installed on the product positioning mold (3-2), the pressure and flow rate are used to monitor whether the product is in contact with the product positioning mold (3-2), thereby determining whether the product is installed in place.

4. The automatic positioning tooling switching device for measuring and inspecting machined products according to claim 1, characterized in that: The height limiting component (6-5) includes limiting brackets (6-51) mounted on the system mounting bracket (6-2) and located on both sides of the mounting block (6-3), and lifting limiting blocks (6-52) mounted on the limiting brackets (6-51). The mounting block (6-3) has extension blocks (6-31) on both sides that are slidably connected to the limiting brackets (6-51) and used to contact the lifting limiting blocks (6-52) for limiting during upward movement. Support beams (6-7) are provided on the two limiting brackets (6-51), and two guide rods (6-8) passing through the mounting block (6-3) are provided between the support beams (6-7) and the system mounting bracket (6-2).

5. An automatic positioning tooling switching device for measuring and inspecting machined products according to claim 1, characterized in that: The axial positioning structure includes a plurality of arc-shaped positioning pins (3-8) disposed at the bottom of the positioning fixture mounting plate (3-1), and the top of the positioning fixture support rod (6-6) is provided with positioning holes (6-61) for the arc-shaped positioning pins (3-8) to be inserted.

6. An automatic positioning tooling switching device for measuring and inspecting machined products according to claim 1, characterized in that: The positioning fixture in-situ identification and detection device (4) includes a detection switch mounting bracket (4-1) mounted on the frame (1), a detection sensor (4-2) mounted on the detection switch mounting bracket (4-1), and a protective cover (4-3) mounted on the frame (1) for protecting the detection switch mounting bracket (4-1).

7. An automatic positioning tooling switching device for measuring and inspecting machined products according to claim 1, characterized in that: The product mounting in-situ detection device (5) is provided in two sets. Each product mounting in-situ detection device (5) can detect two products that can be installed at the same end of the two tooling switching and removal systems (2). The product mounting in-situ detection device (5) includes four mounting connecting brackets (5-1), four angle mounting adjustment brackets (5-2) set on the four mounting connecting brackets (5-1), and four photoelectric detection switches (5-3) set on the four angle mounting adjustment brackets (5-2). The line connecting the four mounting connecting brackets (5-1) forms a quadrilateral. The two photoelectric detection switches (5-3) located on the diagonal form a group. The two groups of two photoelectric detection switches (5-3) located on the diagonal respectively can detect two products that can be installed at the same end of the two tooling switching and removal systems (2).

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