Automatic switching mechanism for multi-model products

Abstract

The utility model discloses an automatic switching mechanism for multi-model products, which relates to the field of mechanical equipment, solves the technical problem that a traditional automatic production line can only carry out production line construction on products with small structural difference and large yield, and comprises two linear conveying components, the two linear conveying assemblies are arranged in parallel in the transverse direction at a preset interval, the product trays are arranged on the two linear conveying guide rails, and the product trays are conveyed to a preset position through conveying wheels on the two linear conveying guide rails; the fixing assembly is arranged at the gap between the two linear conveying assemblies, and the fixing assembly is used for fixing the position of the product tray after the product tray moves to the preset position; and the pin replacing part is arranged below the linear conveying assemblies and located in the gap between the two linear conveying assemblies, and the pin replacing part is used for ejecting out or pulling back the positioning pin. The positioning pins of different types of product trays can be adjusted on one production line, the input cost is reduced, and the production efficiency is high.

Description

Technical Field

[0001] The utility model relates to the field of mechanical equipment, in particular to an automatic switching mechanism for multiple models of products. Background Art

[0002] During the automatic production and processing of products, it is necessary to use a product pallet to fix the workpiece to be processed in advance before subsequent workpiece processing. The product pallet is pre-assembled with positioning pins at various positions. According to the shape of the workpiece, the positioning pins at the corresponding positions on the product pallet are pushed out to fix the workpiece.

[0003] However, because the device that ejects the locating pins on existing production lines can only move along a specified route, a single production line can only produce and process one type of product or products with similar structures. When product structures differ significantly, the production line needs to be modified or replaced, and production can only begin after debugging is complete. With the increase in the number of product categories with different structures and the increasing complexity of the structures, traditional automated production lines can only build production lines for products with relatively small structural differences and high production volumes. When encountering the production of different product categories, multiple production lines have to be built to meet production needs, which leads to crowded production lines, increased production costs, and low production efficiency. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that traditional automated production lines can only build production lines for products with small structural differences and large output. When encountering the production of products of different categories, multiple production lines can only be built to meet production needs, which leads to congested production lines, increased production costs, and low production efficiency. The utility model provides an automatic switching mechanism for multiple models of products, which automatically locates the position of the positioning pin and can move the positioning pin to the corresponding position according to the position of the positioning pin to adjust the positioning pin, realizing the adjustment of the positioning pins on different types of product trays on a single production line, greatly reducing investment costs, facilitating operation, and can be switched at any time according to demand, with high production efficiency.

[0005] To solve the above technical problems, the embodiments of the present utility model disclose an automatic switching mechanism for multiple product models, comprising two linear conveyor rails spaced apart by a preset distance and arranged in parallel in a transverse direction, a fixing assembly, a pin-changing portion, and a product tray, wherein the product tray is disposed on the two linear conveyor rails and transported to a preset position by the two linear conveyor rails;

[0006] The fixing component is arranged at the gap between the two linear conveyor rails, and is used to fix the position of the product tray after the product tray moves to the preset position;

[0007] The pin-changing portion is disposed below the linear conveying guide rail and located in the gap between the two linear conveying guide rails. The pin-changing portion is used to locate the position of the locating pin on the product tray and move to the bottom of the locating pin to push out or pull back the locating pin.

[0008] The above technical solution can be adopted with low investment cost, easy operation, switching at any time according to demand, and high efficiency.

[0009] According to another specific embodiment of the present invention, the embodiment of the present invention discloses that the pin-changing unit includes: a pin-changing assembly and a moving assembly, wherein:

[0010] The pin-changing assembly can locate the position of the positioning pin. The pin-changing assembly is connected to the moving assembly and is driven by the moving assembly to move to the bottom of the positioning pin.

[0011] According to another specific embodiment of the present invention, the embodiment of the present invention discloses that the pin changing assembly includes a pin ejecting member and a driving part. When the moving assembly drives the pin changing assembly to move below the positioning pin, the driving part drives the pin ejecting member to move upward to eject or pull back the positioning pin.

[0012] According to another specific embodiment of the present invention, the embodiment of the present invention discloses an adsorption member, a hydraulic cylinder, a hydraulic system and a solenoid valve, wherein:

[0013] The adsorption member is arranged on one side of the ejector pin member and is connected to the ejector pin member;

[0014] The output shaft of the hydraulic cylinder is connected to the ejector pin and is used to drive the ejector pin to move;

[0015] The hydraulic system includes an oil supply pipeline connected to the hydraulic cylinder for providing output power to the hydraulic cylinder;

[0016] The solenoid valve is installed in the oil supply pipeline to control the on / off of the oil supply pipeline and the flow direction of the hydraulic oil in the oil supply pipeline;

[0017] When the ejector pin pulls the positioning pin back, the adsorption member is triggered to adsorb the positioning pin onto the ejector pin, and the ejector pin is pulled back by the hydraulic cylinder.

[0018] According to another specific embodiment of the present utility model, the embodiment of the present utility model discloses that a positioning sensor is provided on the ejector pin, the positioning sensor is used to locate the position of the positioning pin, and the moving assembly drives the pin changing assembly to move below the positioning pin through the positioning sensor.

[0019] According to another specific embodiment of the present invention, the embodiment of the present invention discloses that the moving assembly includes:

[0020] A longitudinal movable guide rail, on which the pin-changing assembly is slidably arranged and driven to move in the longitudinal direction by the longitudinal movable guide rail;

[0021] Two transverse movable guide rails are arranged below the longitudinal movable guide rails and are slidably connected to the longitudinal movable guide rails. The transverse movable guide rails are used to drive the longitudinal movable guide rails to move in the transverse direction.

[0022] According to another specific embodiment of the present invention, the embodiment of the present invention discloses that the automatic switching mechanism for multiple models of products also includes a base, which is a frame structure with an open top, a support frame is provided on the top of the base, the linear transmission guide rail and the fixed assembly are both provided on the support frame, and the pin change part is slidably installed in the base.

[0023] According to another specific embodiment of the present invention, the embodiment of the present invention discloses a fixing assembly including a pushing member, a rotating member, a connecting member and a connecting plate, wherein two mounting shaft seats are provided on the support frame, and coaxial mounting holes are provided on the two mounting shaft seats. Rotating shafts adapted to the mounting holes are provided in the middle of both sides of the rotating member, and the rotating member is inserted into the mounting hole through the rotating shaft so that the rotating member is rotatably mounted on the mounting shaft seats.

[0024] There are two rotating members and two connecting members, and the two rotating members are spaced apart and arranged on the same side of the support frame. A connecting member is provided at the lower end of one rotating member, and both ends of the connecting plate are connected to the two connecting members respectively.

[0025] The support frame is also provided with a mounting seat, one end of the pusher is rotatably connected to the mounting seat, a slot is provided in the middle of the connecting plate, a rotating rod is provided in the slot, and the other end of the pusher is rotatably connected to the rotating rod;

[0026] The pushing member drives the connecting plate and the connecting member to move, thereby driving the rotating member to rotate around the rotating shaft, so that the rotating member abuts against the product tray and fixes the product tray on the base;

[0027] There are two fixing components, which are symmetrically arranged on both sides of the supporting frame.

[0028] According to another specific embodiment of the present invention, the embodiment of the present invention discloses that the automatic switching mechanism for multiple models of products also includes a loading mechanism, which is arranged on one side of the base, and the loading mechanism is used to load and install workpieces onto the product tray.

[0029] According to another specific embodiment of the present invention, the embodiment of the present invention discloses a loading mechanism including a loading assembly and a positioning assembly, the positioning assembly is used to locate the position of the positioning pin, and the loading assembly transports the workpiece to the product tray.

[0030] The beneficial effects of the present application are: providing an automatic switching mechanism for multiple models of products, automatically locating the position of the locating pin, and being able to move the locating pin to the corresponding position according to the position of the locating pin to adjust the locating pin, thereby realizing the adjustment of the locating pins on different types of product pallets on a production line, greatly reducing the investment cost, facilitating operation, and being able to switch at any time according to demand, with high production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic structural diagram showing a linear transmission guide rail, a fixing assembly, and a pin-changing portion according to an embodiment of the present invention is shown;

[0032] Figure 2 Show Figure 1 A in the middle is an enlarged schematic diagram;

[0033] Figure 3 A schematic diagram showing the overall structure of the automatic switching mechanism for multiple models of products according to an embodiment of the present utility model;

[0034] Figure 4 A schematic diagram showing the structure of a product tray of an automatic switching mechanism for multiple product models according to an embodiment of the present invention;

[0035] Figure 5 Show Figure 1 Enlarged schematic diagram of point B in the middle.

[0036] in:

[0037] 1. Linear transmission guide rail; 11. Transmission wheel;

[0038] 2. Fixed component; 21. Pushing member; 22. Rotating member; 23. Connecting member; 24. Connecting plate; 211. Output end;

[0039] 3. Pin exchange unit; 31. Pin exchange assembly; 311. Pin ejector; 312. Drive unit; 3121. Hydraulic cylinder; 3122. Adsorption element; 32. Moving assembly; 321. Longitudinal moving guide rail; 322. Horizontal moving guide rail; 313. Positioning sensor;

[0040] 4. Product tray; 41. Positioning pin;

[0041] 5. Base; 51. Support frame; 52. Mounting shaft seat; 53. Mounting seat;

[0042] 6. Feeding mechanism; 61. Feeding assembly; 62. Positioning assembly. DETAILED DESCRIPTION

[0043] The following is an explanation of the implementation of the present invention by means of specific specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this utility model are limited to this implementation. On the contrary, the purpose of introducing the utility model in conjunction with the implementation is to cover other options or modifications that may be extended based on the claims of the present invention. In order to provide an in-depth understanding of the present invention, the following description will contain many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0044] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0045] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the utility model.

[0046] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0047] In the description of this embodiment, it should be noted that, unless otherwise specified or limited, the terms "disposed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this embodiment based on specific circumstances.

[0048] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0049] Example 1:

[0050] Reference Figures 1 to 5The present application provides a multi-model product automatic switching mechanism, comprising two linear transmission guide rails 1, the two linear transmission guide rails 1 are spaced apart by a preset distance and are arranged in a transverse direction ( Figure 3 The product tray 4 is provided in parallel with the X direction, and further includes a fixing component 2, a pin-changing portion 3 and a product tray 4, wherein:

[0051] The product tray 4 is set on two linear conveying guide rails 1, and the product tray 4 is transported to a preset position by the two linear conveying guide rails 1;

[0052] The fixing assembly 2 is provided at the gap between the two linear conveying guide rails 1 and is used to fix the position of the product tray 4 after the product tray 4 moves to a preset position;

[0053] The pin-changing portion 3 is disposed below the linear conveying guide rail 1 and located in the gap between the two linear conveying guide rails 1 . The pin-changing portion 3 is used to position the positioning pin 41 on the product tray 4 and to push out or pull back the positioning pin 41 .

[0054] In this embodiment, the linear conveying guide rail 1 is made of aluminum alloy, and its surface is polished to have wear resistance and a low friction coefficient to ensure that the product tray 4 can move on the guide rail.

[0055] When the product tray 4 moves to the preset position, the fixing component 2 receives the corresponding in-position signal and presses against the slot or edge position at the bottom of the product tray 4 from the gap between the two linear conveying guide rails 1, thereby fixing the position of the product tray 4 in the plane and preventing it from being displaced during subsequent operations.

[0056] Pin exchange unit 3 is equipped with a positioning system that captures the position of positioning pins 41 on product tray 4. Upon receiving a signal that product tray 4 is in place and secure, this positional data is transmitted to the pin exchange unit 3 below. Pin exchange unit 3 then adjusts its position to ensure alignment with positioning pins 41.

[0057] By adopting the above technical solution, the pin changing unit 3 can automatically locate the position of the positioning pin 41, and can move the positioning pin 41 to the corresponding position according to the position of the positioning pin 41 to adjust the positioning pin 41, thereby realizing the adjustment of the positioning pins 41 on different types of product pallets 4 on a production line, greatly reducing the investment cost, facilitating operation, and can be switched at any time according to demand, with high production efficiency.

[0058] Example 2:

[0059] Continue to refer to Figure 1 and Figure 2 In one feasible embodiment, the pin-changing unit 3 includes: a pin-changing component 31 and a moving component 32, wherein:

[0060] The pin-changing assembly 31 can locate the position of the positioning pin 41 . The pin-changing assembly 31 is connected to the moving assembly 32 and is driven by the moving assembly 32 to move to the bottom of the positioning pin 41 .

[0061] The pin-changing assembly 31 includes a pin-ejecting member 311 and a driving portion 312 . When the moving assembly 32 drives the pin-ejecting assembly 31 to move below the positioning pin 41 , the driving portion 312 drives the pin-ejecting member 311 to move upward to push out or pull back the positioning pin 41 .

[0062] In this embodiment, the positioning pin 41 on the product tray 4 of the present application is fixed in a sliding connection with the product tray 4, and a guide groove (not shown in the figure) is provided on one side of the positioning pin 41, and a mounting hole is provided at a position corresponding to the positioning pin 41 on the product tray 4, and a protrusion (not shown in the figure) is provided at the position corresponding to the guide groove of the mounting hole. The guide groove of the positioning pin 41 is aligned with the protrusion, so that the positioning pin 41 is slidably installed on the product tray 4, wherein the positioning pin 41 and the product tray 4 are interference fitted, and a stopper (not shown in the figure) is provided on the positioning pin 41 to prevent the positioning pin 41 from detaching from the product tray 4 when it is pulled back downward.

[0063] When a pin replacement operation is required, the control system first receives a signal indicating that the product tray 4 has reached the preset position and is secured by the securing assembly 2. It then sends a start command to the moving assembly 32, which begins to move, driving the pin replacement assembly 31 toward the positioning pin 41 until it is below the positioning pin 41. At this point, the control system then sends a work command to the drive unit 312 of the pin replacement assembly 31, which drives the ejector 311 upward according to a pre-set sequence, completing the ejection or retraction operation of the positioning pin 41.

[0064] The head of ejector pin 311 is shaped and sized to match that of locating pin 41. For example, if locating pin 41 is cylindrical, the head of ejector pin 311 is machined into a corresponding concave arc to ensure that force is applied to locating pin 41 when in contact with it, preventing deflection that could damage locating pin 41 or prevent smooth ejection / retraction. Ejector pin 311 is made of alloy steel and is detachably connected to drive unit 312, such as through a threaded connection with a locknut. This facilitates replacement of ejector pin 311 in the event of wear.

[0065] In an implementable embodiment, the driving unit 312 drives the ejector pin 311 to move upward. The driving unit 312 is also equipped with an overload protection device. When encountering abnormal resistance, such as the positioning pin 41 being stuck, etc., which exceeds the set threshold, the driving unit 312 automatically stops working and sends a fault signal to prevent damage to the driving unit 312.

[0066] Example 3:

[0067] Continue to refer to Figure 2 In an implementable embodiment, the driving part 312 includes a hydraulic cylinder 3121, whose output shaft is connected to the push pin part 311, and is used to drive the push pin part 311 to move upward; a hydraulic system, which includes an oil supply pipeline, which is connected to the hydraulic cylinder 3121, and is used to provide output power to the hydraulic cylinder 3121; an electromagnetic valve, which is arranged at the oil supply pipeline, and is used to control the on-off of the oil supply pipeline and the flow direction of the hydraulic oil in the oil supply pipeline; an adsorption part 3122, which is arranged on the push pin part 311, and the adsorption part 3122 is electrically connected to the electromagnetic valve, and is used for when the push pin part 311 pulls back the positioning pin 41, the adsorption part 3122 is triggered to adsorb the positioning pin 41 on the push pin part 311, and the hydraulic cylinder 3121 pulls back the push pin part 311.

[0068] In this embodiment, the barrel of hydraulic cylinder 3121 is made of seamless steel tubing, and the piston utilizes a rubber seal combined with a piston ring to accommodate the high-pressure environment of the hydraulic system. The end of the output shaft of hydraulic cylinder 3121 is equipped with a connection structure, such as an external thread, that mates with ejector pin 311. This connection is securely secured to ejector pin 311 via a nut, and a locking washer is provided at the connection to prevent loosening during frequent operation.

[0069] Figure 3 Two ejector pins 311 are shown in the figure. The two ejector pins 311 are symmetrically arranged and are respectively connected to the output shaft of the hydraulic cylinder 3121. However, this application does not limit the number of ejector pins 311. The number of ejector pins 311 can be selected according to actual needs. For example, the number of ejector pins 311 can also be one, which is connected to the output shaft of the hydraulic cylinder 3121.

[0070] The solenoid valve uses an electromagnetic reversing valve, which has multiple working oil ports to realize the on-off and reversing functions of different oil circuits. By controlling the different positions of the valve core, the hydraulic oil can enter the different chambers of the hydraulic cylinder 3121, thereby realizing the extension or retraction of the hydraulic cylinder 3121, meeting the different working conditions requirements of the ejector pin 311 to eject or pull back the positioning pin 41.

[0071] The suction element 3122 is an electromagnetic suction cup, consisting of an iron core, a coil, and a housing. The iron core is made of soft magnetic material, capable of quickly generating a strong magnetic field when energized, and the housing is made of metal. The coil is wound with enameled wire. When the push pin 311 moves upward and approaches the positioning pin 41 to pull it back, the control system energizes the coil of the suction element 3122, generating a magnetic field. This creates an electromagnetic attraction between the suction element 3122 and the positioning pin 41, attaching the positioning pin 41 to the push pin 311. The hydraulic cylinder 3121 then pulls the positioning pin 41 back.

[0072] Example 4:

[0073] Continue to refer to Figure 2 In an implementable embodiment, a positioning sensor 313 is provided on the ejector pin 311 , and the positioning sensor 313 is used to locate the position of the positioning pin 41 . The moving component 32 drives the pin-changing component 31 to move below the positioning pin 41 through the positioning sensor 313 .

[0074] In this embodiment, positioning sensor 313 is a photoelectric proximity sensor that can promptly detect the position of positioning pin 41 as pin-changing assembly 31 approaches positioning pin 41. Positioning sensor 313 is fixed to pin-lift member 311, located near the head of pin-lift member 311 and facing the direction of positioning pin 41. This allows it to detect the position of positioning pin 41 and provide a signal during the movement of pin-changing assembly 311.

[0075] As moving assembly 32 begins to move pin-changing assembly 31, the signal strength output by positioning sensor 313 changes accordingly as pin-changing assembly 31 approaches positioning pin 41. Based on the relationship between signal strength and distance, the distance between pin-changing assembly 31 and positioning pin 41 is determined until moving assembly 32 is directly below positioning pin 41, achieving precise positioning. Positioning sensor 313 ensures that pin-changing assembly 31 is accurately positioned below positioning pin 41.

[0076] Example 5:

[0077] Continue to refer to Figures 1 to 3 In one embodiment, the moving assembly 32 includes a longitudinal moving guide rail 321, and the pin-changing assembly 31 is slidably disposed on the longitudinal moving guide rail 321 and is driven by the longitudinal moving guide rail 321 to move in the longitudinal direction ( Figure 3 two transverse movable guide rails 322, disposed below the longitudinal movable guide rail 321 and slidingly connected to the longitudinal movable guide rail 321, the transverse movable guide rail 322 is used to drive the longitudinal movable guide rail 321 to move in the transverse direction.

[0078] In this embodiment, the main body of the longitudinal guide rail 321 is made of aluminum alloy, with an I-shaped or dovetail cross-section to provide guidance and load-bearing capacity. The top surface of the longitudinal guide rail 321 serves as the sliding contact surface for the pin-changing assembly 31. Furthermore, screw holes and pin holes are machined into the sides of the longitudinal guide rail 321 for mounting and fixing. The pin holes facilitate connection to external support structures and prevent the longitudinal guide rail 321 from loosening or shifting.

[0079] Two transverse guide rails 322 are provided, constructed from carbon steel for strength and toughness. Guide grooves are machined along the top surfaces of the transverse guide rails 322 along their lengths. These grooves cooperate with the longitudinal guide rails 321, ensuring reciprocating movement of the longitudinal guide rails 321 only in the transverse direction. Protective shields, made of transparent polycarbonate plastic, are installed on both sides and above the transverse guide rails 322. These shields provide protection without compromising observation and maintenance of the transverse guide rails 322, ensuring their proper operation and service life.

[0080] A transverse moving cylinder is provided on the longitudinal moving guide rail 321 to drive the pin exchange assembly 31 to move back and forth in the longitudinal direction. The cylinder diameter and stroke are calculated and selected based on factors such as the weight of the pin exchange assembly 31, the thrust required for movement, and the moving distance. The inner wall of the cylinder barrel of the transverse moving cylinder is bored and chrome-plated, and has wear resistance and smoothness. The piston of the transverse moving cylinder is made of aluminum alloy and covered with a wear-resistant rubber seal to ensure the airtightness and stability of the transverse moving cylinder during operation. The end of the piston rod of the transverse moving cylinder is connected to the pin exchange assembly 31 through a floating joint. The floating joint can adapt to angle changes within a certain range, reducing the lateral force on the piston rod and the pin exchange assembly 31 caused by installation errors or slight deflections during movement, thereby ensuring smooth movement.

[0081] Example 6:

[0082] Continue to refer to Figures 1 to 3 In an implementable embodiment, the multi-model product automatic switching mechanism of the present application also includes a base 5, which is a frame structure with an open top. A support frame 51 is provided on the top of the base 5, and the linear transmission guide rail 1 and the fixed component 2 are both provided on the support frame 51, and the pin-changing part 3 is slidably installed in the base 5.

[0083] In this embodiment, the base 5 is entirely welded from thick steel plates, while the support frame 51 is primarily constructed from sections of steel welded and bolted together. The columns of the support frame 51 are constructed from large I-beams to bear the primary vertical load, while the crossbeams are constructed from channel steel. The spacing and number of crossbeams are appropriately determined based on the installation layout of components such as the linear conveyor guide rail 1 to ensure the overall stability and load-bearing capacity of the support frame 51.

[0084] Example 7:

[0085] Reference Figure 1 and Figure 5In one feasible embodiment, the fixing assembly 2 includes a pushing member 21, a rotating member 22, a connecting member 23, and a connecting plate 24. Two mounting shaft seats 52 are provided on the supporting frame 51. The two mounting shaft seats 52 are provided with coaxial mounting holes. A rotating shaft adapted to the mounting hole is provided in the middle of both sides of the rotating member 22. The rotating member 22 is inserted into the mounting hole through the rotating shaft, so that the rotating member 22 is rotatably mounted on the mounting shaft seat 52.

[0086] There are two rotating members 22 and two connecting members 23. The two rotating members 22 are spaced apart and arranged on the same side of the support frame 51. A connecting member 23 is provided at the lower end of each rotating member 22. The two ends of the connecting plate 24 are respectively connected to the two connecting members 23.

[0087] The support frame 51 is further provided with a mounting seat 53, one end of the pusher 21 is rotatably connected to the mounting seat 53, a slot is provided in the middle of the connecting plate 24, a rotating rod is provided in the slot, and the other end of the pusher 21 is rotatably connected to the rotating rod;

[0088] The pusher 21 drives the connecting plate 24 and the connecting member 23 to move, thereby driving the rotating member 22 to rotate around the rotating axis, so that the rotating member 22 abuts against the product tray 4 and fixes the product tray 4 on the base 5;

[0089] There are two fixing components 2 , which are symmetrically arranged on both sides of the support frame 51 .

[0090] In this embodiment, taking one side of the support frame 51 as an example, two mounting shaft seats 52 are provided on the support frame 51, and each mounting shaft seat 52 is processed with a coaxial mounting hole (not shown in the figure), and a rotating shaft (not shown in the figure) adapted to the mounting hole is provided in the middle of both sides of the rotating member 22. The rotating member 22 is inserted into the mounting hole through the rotating shaft, so that the rotating member 22 is rotatably installed on the mounting shaft seat 52.

[0091] Reference Figure 5 , two rotating members 22 and two connecting members 23 are provided on one side of the support frame 51, a connecting member 23 is provided at the lower end of one rotating member 22, and both ends of the connecting plate 24 are respectively connected to the two connecting members 23;

[0092] The support frame 51 is further provided with a mounting seat 53. One end of the pusher 21 is rotatably mounted on the mounting seat 53. The other end of the pusher 21 is rotatably connected to the middle of the connecting plate 24. The pusher 21 can be a structural member with a driving cylinder. The connecting plate 24 has a slot (not shown) in the middle, and a rotating rod (not shown) is provided in the slot. The output end 211 of the pusher 21 is rotatably connected to the rotating rod.

[0093] The rotating member 22 is a semicircular structure. When the product tray 4 moves from the previous process to the linear conveyor guide rail 1, the output end 211 of the pushing member 21 retracts, driving the connecting plate 24 to move toward the pushing member 21. The connecting plate 24 drives the connecting member 23 to move. The connecting member 23 drives the lower end of the rotating member 22 to rotate around the rotating axis, so that the top surface of the rotating member 22 is lower than the moving surface of the product tray 4, ensuring that the product tray 4 does not interfere with the rotating member 22 during movement.

[0094] When the product tray 4 moves to the preset position, the output end 211 of the pushing member 21 extends, driving the connecting plate 24 to move away from the pushing member 21. The connecting plate 24 drives the connecting member 23 to push the lower end of the rotating member 22 to rotate around the rotating axis, so that the top surface height of the rotating member 22 is higher than the moving surface of the product tray 4. When the product tray 4 continues to move, it will abut against the rotating member 22, and the rotating member 22 will fix the product tray 4 on the linear conveying guide rail 1.

[0095] Since one end of the pushing member 21 is rotatably mounted on the mounting seat 53, there is an angle between the extension direction of the pushing member 21 and the plane of the mounting seat 53. When the rotating member 22 rotates, the angle between the extension direction of the pushing member 21 and the plane of the mounting seat 53 can change accordingly, so that the pushing member 21 pushes the connecting member 23 through the connecting plate 24 to drive the rotating member 22 to rotate.

[0096] Two fixing components 2 are provided, symmetrically arranged on both sides of the support frame 51 , and the product tray 4 is fixed from both sides by the fixing components 2 to avoid movement when the workpiece is fixed on the product tray 4 .

[0097] Example 8:

[0098] Reference Figure 3 In one embodiment, the automatic switching mechanism for multiple product models of the present application further includes a loading mechanism 6 disposed on one side of the base 5 . The loading mechanism 6 is used to load and mount workpieces onto the product tray 4 . The loading mechanism 6 includes a positioning assembly 62 and a loading assembly 61 . The positioning assembly 62 is used to locate the position of the positioning pin 41 , and the loading assembly 61 transports the workpieces onto the product tray 4 .

[0099] In this embodiment, the positioning assembly 62 is equipped with a visual positioning system, utilizing a CCD or CMOS camera. This system is capable of clearly and quickly capturing images of the product tray 4 and the positioning pins 41. The visual positioning system also includes an image processing and analysis module, which runs on an industrial computer based on image algorithm software. After the industrial camera captures an image, the image data is transmitted to this module in real time. Image preprocessing, including noise reduction, grayscale conversion, and contrast enhancement, is performed to improve image clarity and quality. Feature extraction algorithms, such as edge detection and shape recognition, are then used to accurately identify key information such as the coordinate position, shape, and dimensions of the positioning pins 41 in the image. By comparing this information with a preset standard positioning pin 41 template, the positioning pins 41 can be accurately positioned and any abnormalities, such as defects or deformation, can be determined. If an abnormality is detected, an alarm signal is sent to the control system, prompting the operator to conduct an inspection and corrective action. Simultaneously, the positioning pin 41 position information is transmitted to the loading assembly 61, providing guidance for positioning the workpiece onto the product tray 4.

[0100] In addition to the visual positioning system, positioning assembly 62 is also equipped with an auxiliary positioning device, primarily consisting of multiple photoelectric sensors. These sensors are located at key locations around product tray 4, monitoring the product tray 4 and positioning pins 41 from various angles. When a product tray 4 enters the loading area, the photoelectric sensors detect whether it has reached the predetermined initial position. If any deviation occurs, the control system provides feedback. The control system then analyzes the information obtained with the visual positioning system and activates the appropriate adjustment mechanism to adjust the position of the product tray 4, ensuring that the positioning pins 41 are within the range within which loading assembly 61 can accurately operate, further improving the positioning accuracy of loading.

[0101] When loading is required, the product tray 4 is first transported by the linear conveyor rail 1 to the preset position of the loading mechanism 6. At this point, the positioning assembly 62 begins operation. The industrial camera of the visual positioning system captures images of the product tray 4 and the positioning pins 41. The image processing and analysis module then determines the precise position of the positioning pins 41. Simultaneously, the photoelectric sensors of the auxiliary positioning device detect the accuracy of the product tray 4's position, adjusting any deviations. The positioning assembly 62 then transmits this positioning information to the gripping and placement mechanism of the loading assembly 61. The workpiece conveying mechanism of the loading assembly 61 begins conveying the workpiece. When the workpiece reaches the desired position at the end of the conveyor belt, the gripping and placement mechanism, based on the received positioning information, accurately grasps the workpiece and places it in the corresponding position on the product tray 4. Throughout this process, each component exchanges signals with the control system in real time via communication methods such as industrial Ethernet or fieldbus. The control system coordinates and controls the workpiece based on status information fed back by each component (such as sensor detection signals and motor operating status), ensuring that the loading operation is completed in an orderly, efficient, and accurate manner.

[0102] Example 9:

[0103] Reference Figure 1 Optionally, a plurality of transfer wheels 11 are arranged at equal intervals on the top surface of the linear transfer guide rail 1 , and the transfer wheels 11 partially extend out of the top surface of the linear transfer guide rail 1 , and the product tray 4 moves in the lateral direction through the transfer wheels 11 .

[0104] In this embodiment, the conveyor wheels 11 are made of polyurethane rubber, which provides elasticity and friction, ensuring a stable driving force for the product tray 4 while preventing scratches or other damage to the product tray 4. The product tray 4 is placed on the conveyor wheels 11 of the two linear conveyor rails 1 and is transported to a predetermined position by the conveyor wheels 11.

[0105] Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above description is provided to further illustrate the present invention in conjunction with specific embodiments, and that the present invention should not be construed as being limited to these descriptions. Those skilled in the art may make various changes in form and detail, including simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A multi-model product automatic switching mechanism, comprising two linear conveying guide rails (1), wherein the two linear conveying guide rails (1) are spaced apart by a preset distance and are arranged in parallel in a transverse direction, characterized in that: It also includes a fixing component (2), a pin-changing portion (3) and a product tray (4), wherein the product tray (4) is arranged on the two linear conveying guide rails (1), and the product tray (4) is transported to a preset position via the two linear conveying guide rails (1); The fixing component (2) is arranged at a gap between the two linear conveying guide rails (1), and the fixing component (2) is used to fix the position of the product tray (4) after the product tray (4) moves to a preset position; The pin-changing portion (3) is arranged below the linear conveying guide rail (1) and located in the gap between the two linear conveying guide rails (1). The pin-changing portion (3) is used to locate the position of the positioning pin (41) on the product tray (4) and move to the bottom of the positioning pin (41) to push out or pull back the positioning pin (41).

2. The automatic switching mechanism for multiple models of products according to claim 1, characterized in that: The pin-changing portion (3) comprises a pin-changing assembly (31) and a moving assembly (32), wherein: The pin-changing assembly (31) is capable of locating the position of the positioning pin (41). The pin-changing assembly (31) is connected to the moving assembly (32) and is driven by the moving assembly (32) to move to the bottom of the positioning pin (41).

3. The multi-model product automatic switching mechanism according to claim 2, characterized in that: The pin-changing assembly (31) comprises a pin-ejecting member (311) and a driving portion (312). When the moving assembly (32) drives the pin-ejecting assembly (31) to move below the positioning pin (41), the driving portion (312) drives the pin-ejecting member (311) to move upward to eject or pull back the positioning pin (41).

4. The automatic switching mechanism for multiple models of products according to claim 3, characterized in that: The driving part (312) includes a hydraulic cylinder (3121), an adsorption member (3122), a hydraulic system and a solenoid valve, wherein: The adsorption member (3122) is arranged on one side of the push pin member (311) and is connected to the push pin member (311); The output shaft of the hydraulic cylinder (3121) is connected to the ejector pin (311) and is used to drive the ejector pin (311) to move; The hydraulic system comprises an oil supply pipeline, wherein the oil supply pipeline is connected to the hydraulic cylinder (3121) and is used to provide output power to the hydraulic cylinder (3121); a solenoid valve, provided at the oil supply pipeline, for controlling the on-off state of the oil supply pipeline and the flow direction of the hydraulic oil in the oil supply pipeline; When the ejector pin (311) pulls back the positioning pin (41), the adsorption member (3122) is triggered to adsorb the positioning pin (41) onto the ejector pin (311), and the hydraulic cylinder (3121) pulls back the ejector pin (311).

5. The multi-model product automatic switching mechanism according to claim 3, characterized in that: A positioning sensor (313) is provided on the ejector pin (311), and the positioning sensor (313) is used to locate the position of the positioning pin (41). The moving assembly (32) drives the pin-changing assembly (31) to move below the positioning pin (41) through the positioning sensor (313).

6. The multi-model product automatic switching mechanism according to claim 3, characterized in that: The mobile assembly (32) comprises: A longitudinal movable guide rail (321), the pin-changing assembly (31) is slidably arranged on the longitudinal movable guide rail (321), and is driven by the longitudinal movable guide rail (321) to move in the longitudinal direction; A transverse movable guide rail (322) is provided below the longitudinal movable guide rail (321) and is slidably connected to the longitudinal movable guide rail (321). The transverse movable guide rail (322) is used to drive the longitudinal movable guide rail (321) to move along the transverse direction.

7. The automatic switching mechanism for multiple models of products according to claim 1, characterized in that: The multi-model product automatic switching mechanism further comprises a base (5), wherein the base (5) is a frame structure with an open top, a support frame (51) is provided on the top of the base (5), the linear transmission guide rail (1) and the fixed assembly (2) are both provided on the support frame (51), and the pin-changing portion (3) is slidably installed in the base (5).

8. The automatic switching mechanism for multiple models of products according to claim 7, characterized in that: The fixing assembly (2) includes a pushing member (21), a rotating member (22), a connecting member (23) and a connecting plate (24), wherein two mounting shaft seats (52) are provided on the supporting frame (51), and coaxial mounting holes are provided on the two mounting shaft seats (52). Rotating shafts adapted to the mounting holes are provided in the middle of both sides of the rotating member (22), and the rotating member (22) is inserted into the mounting hole through the rotating shaft, so that the rotating member (22) is rotatably mounted on the mounting shaft seats (52); There are two rotating members (22) and two connecting members (23), and the two rotating members (22) are spaced apart and arranged on the same side of the support frame (51). A connecting member (23) is provided at the lower end of one rotating member (22), and both ends of the connecting plate (24) are respectively connected to the two connecting members (23); The support frame (51) is further provided with a mounting seat (53), one end of the pusher (21) is rotatably connected to the mounting seat (53), a slot is provided in the middle of the connecting plate (24), a rotating rod is provided in the slot, and the other end of the pusher (21) is rotatably connected to the rotating rod; The pushing member (21) drives the connecting plate (24) and the connecting member (23) to move, thereby driving the rotating member (22) to rotate around the rotating shaft, so that the rotating member (22) abuts against the product tray (4) and fixes the product tray (4) on the base (5); There are two fixing assemblies (2), and the two fixing assemblies (2) are symmetrically arranged on both sides of the support frame (51).

9. The automatic switching mechanism for multiple models of products according to claim 7, characterized in that: The multi-model product automatic switching mechanism further comprises a loading mechanism (6) disposed on one side of the base (5), and the loading mechanism (6) is used to load and install workpieces onto the product tray (4).

10. The automatic switching mechanism for multiple models of products according to claim 9, characterized in that: The loading mechanism (6) comprises a loading assembly (61) and a positioning assembly (62), wherein the positioning assembly (62) is used to locate the position of the positioning pin (41), and the loading assembly (61) transports the workpiece onto the product tray (4).

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