Reflow fixture for automatic reflow processing system

Abstract

This invention discloses a processing system with an automatically recirculating transfer fixture. The system includes a transfer line, a transfer fixture, loading and unloading devices, a loading platform, and processing devices at each processing station located on the X-axis linear guide. The transfer line consists of two sets of Y-axis linear guides and two sets of X-axis linear guides connected end-to-end in a U-shape. Each connection point is equipped with a 90° rotatable connecting rail to facilitate switching between Y-axis and X-axis transfer. The loading and unloading devices are located at loading and unloading positions on both sides of the transfer line. The products to be processed are placed into the transfer fixture, and the processed products are removed. The transfer fixture circulates along the transfer line for reuse. This invention enables automatic product loading and unloading, continuous multi-process processing, and the recycling of the transfer fixture, resulting in high production efficiency.

Description

Technical Field

[0001] This invention relates to the field of mechanical device technology, and in particular to a processing system with an automatic return mechanism for the transfer fixture. Background Technology

[0002] The production of some products or workpieces involves multiple processing steps. For example... Figure 1 As shown, taking one type of elongated product 10 as an example, this product 10 has two extending columns 101 perpendicular to its length in the middle. The product requires precision grinding of the outer circumference of the extending columns, as well as milling, tapping, and gear shaping operations. Different processes require different machining tools. When machining the product, it needs to be placed on a machining fixture. Traditional fixture designs are not ideal, as they cannot clamp multiple products at once, reducing machining efficiency and providing insufficient positioning accuracy.

[0003] Meanwhile, some products may have varying degrees of deflection upon arrival, and traditional jigs cannot press and shape the products before clamping, affecting processing accuracy.

[0004] In addition, the existing processing method separates the above-mentioned processes and completes them at different workstations. That is, after the product is processed on the processing fixture of the previous workstation, it is then placed on the processing fixture of the next workstation. This method is inefficient, requires multiple material handling robots, and is complex and costly.

[0005] The purpose of this invention is to provide a processing system with an automatic return function for the transfer fixture that can solve the above-mentioned problems. Summary of the Invention

[0006] The main technical problem solved by this invention is to provide a processing system with an automatic return of the transfer fixture. By setting up a feeding platform, loading and unloading devices, processing devices and transfer lines, it can realize automatic loading and unloading of products, automatic multi-process processing, etc., and the transfer fixture can be recycled to improve production efficiency.

[0007] To solve the above-mentioned technical problems, the present invention adopts a technical solution as follows: a processing system with an automatic return flow fixture is provided. The processing system includes a flow line, a flow fixture, a loading and unloading device, and a loading platform. The loading and unloading positions on the left and right sides of the flow line are respectively provided with a loading and unloading device and a loading platform. The flow fixture can be circulated and reused along the flow line. The loading and unloading device places the product to be processed on the flow fixture and removes the processed product from the flow fixture.

[0008] The conveyor line includes a Y-axis guide rail, a connecting guide rail, and an X-axis guide rail. There are two sets of both the Y-axis and X-axis guide rails. The conveyor line is arranged in a U-shape in the order of Y-axis guide rail, X-axis guide rail, Y-axis guide rail, and X-axis guide rail. Each connection point of the Y-axis and X-axis guide rails is provided with a connecting guide rail. When the connecting guide rail is parallel to the Y-axis, it can be aligned with the Y-axis guide rail. When the connecting guide rail is rotated 90°, it can be aligned with the X-axis guide rail.

[0009] The Y-direction linear rail is installed on the Y-direction linear rail seat, the connecting linear rail is installed on the connecting linear rail seat, and the X-direction linear rail is installed on the X-direction linear rail seat;

[0010] Each of the connecting rails is provided with a rotation reversing device, which drives the connecting rail to rotate 90°.

[0011] Each X-axis linear guide is also provided with an X-axis translation drive device, and each X-axis linear guide is also provided with multiple processing stations evenly spaced apart. Each processing station is provided with a processing device. The X-axis translation drive device drives the transfer fixture from the connecting linear guide into the X-axis linear guide and translates along the X-axis linear guide to realize the movement of the transfer fixture between each processing station, and the product is processed by the corresponding processing device.

[0012] Furthermore, the loading and unloading device includes a loading and unloading base, a loading and unloading Y-axis translation drive module, a loading and unloading X-axis translation drive module, and a loading and unloading Z-axis translation drive module. The loading and unloading base is driven to move along the Y-axis, X-axis, and Z-axis respectively by the loading and unloading Y-axis translation drive module, the loading and unloading X-axis translation drive module, and the loading and unloading Z-axis translation drive module.

[0013] The loading / unloading base is equipped with a first loading / unloading gripper and a loading / unloading lifting drive cylinder. The first loading / unloading gripper grips several products. A suction nozzle seat is fixedly installed at the power output end of the loading / unloading lifting drive cylinder. The suction nozzle seat is driven to rise and fall by the loading / unloading lifting drive cylinder. Multiple suction nozzles are fixedly installed at the bottom of the suction nozzle seat. A slide is also installed on the suction nozzle seat. A second loading / unloading gripper is installed on the slide. The slide can drive the second loading / unloading gripper to slide up and down relative to the suction nozzle seat.

[0014] Furthermore, a pressing and pushing mechanism is also installed on the bracket where the loading and unloading Y-axis translation drive module is located. The pressing and pushing mechanism includes a pressing and pushing lifting drive cylinder and a pressing and pushing seat. The pressing and pushing seat is installed at the lower end of the pressing and pushing lifting drive cylinder. A pushing structure and a pressing structure are installed on the pressing and pushing seat. The pushing structure includes a pushing drive cylinder and a pushing block. The pushing drive cylinder drives the pushing block to translate along the Y-axis and uses one side of the transfer fixture as the Y-axis positioning reference to position the product in the Y-axis. The pressing structure includes a pressing drive cylinder and a pressing block. The bottom of the pressing block is provided with multiple pressing parts. The pressing drive cylinder drives the pressing block to lift and lower.

[0015] Furthermore, the loading platform includes a flipping fixture and a secondary positioning fixture. The product is placed on the flipping fixture by the loading and unloading device, the product is flipped by the flipping fixture, and the flipped product is placed one by one on the secondary positioning fixture by the loading and unloading device.

[0016] The secondary positioning fixture is located downstream of the flipping fixture; the flipping fixture includes a first fixture base, a flipping lifting mechanism and a first positioning mechanism. The first fixture base has a first groove for placing the product. The flipping lifting mechanism lifts the product from below, causing the product to flip at a certain angle. The first positioning mechanism pushes the product to move along the Y direction and limits its position using one side of the first groove as a Y-direction positioning reference.

[0017] The secondary positioning fixture includes a second fixture base and a second positioning mechanism. The second fixture base has multiple spaced second grooves for placing products. The second positioning mechanism simultaneously pushes all products to move along the X direction and limits their movement by using one side of the second groove as the X-direction positioning reference.

[0018] Furthermore, the machine base of the processing system is also equipped with a fixture clamping mechanism that can be raised and lowered along the Z-axis. The transfer fixture includes a transfer fixture base, a fixture cover plate that can move along the X-axis, and an elastic connection structure. The fixture clamping mechanism includes a fixture clamping seat and a fixture clamping translation drive cylinder. The upper surface of the transfer fixture base is provided with several product slots for placing products. The product slots are L-shaped slots. The fixture cover plate is located on the other side of the product slots.

[0019] The fixture clamping seat is installed on the power output end of the fixture clamping translation drive cylinder. One end face of the fixture clamping seat is provided with a pressing block. One end of the elastic connecting structure is connected to the fixture cover plate and the other end can abut against the pressing block. The pressing block can squeeze the elastic connecting structure to make the elastic connecting structure store energy.

[0020] The jig clamping translation drive cylinder pushes the jig clamping seat and its end face abutment block to translate along the Y direction, thereby driving the elastic connection structure to drive the jig cover plate to translate along the X direction and release the product; when the jig clamping translation drive cylinder retracts, the elastic force of the elastic connection structure is released, driving the jig cover plate to translate in the opposite direction along the X direction and clamp the product.

[0021] Furthermore, the fixture clamping mechanism is mounted on the fixture clamping base plate, and the bottom of the fixture clamping base plate is connected to a fixture clamping lifting drive cylinder capable of driving its lifting and lowering.

[0022] Furthermore, the elastic connection structure includes an elastic element, a lever, and a positioning pin. A side support block is installed on the transfer fixture base. One end of the elastic element is installed on the side support block, and the other end is installed on one end of the lever. The middle position of the lever is rotatably connected to the transfer fixture base through a rotating pin, and the other end of the lever is connected to the fixture cover plate through the positioning pin.

[0023] Furthermore, one working surface of the clamping block is an inclined surface. When the jig clamping and translational drive cylinder pushes the clamping block to translate along the Y direction, the inclined surface of the clamping block squeezes the elastic element, causing the jig cover plate to translate along the X direction and loosen the product.

[0024] Furthermore, a first fixture pressure plate and a second fixture pressure plate are also installed on the upper surface of the transfer fixture base, and the first fixture pressure plate and the second fixture pressure plate are respectively located at both ends of the product groove;

[0025] One end of the product slot extends to the inner side of the first fixture pressure plate, the inner side of the first fixture pressure plate is a Y-direction positioning reference surface, and the second fixture pressure plate is provided with a plurality of clearance slots that mate with the product slot.

[0026] Furthermore, the transfer fixture also includes a fixture base plate, the transfer fixture seat is mounted on the fixture base plate, and the fixture base plate is capable of translating along the Y-axis rail, the connecting rail and the X-axis rail; the transfer fixture is driven to translate along the Y-axis rail and the connecting rail by a first Y-axis translation drive mechanism;

[0027] The rotary reversing device includes a movable seat, a connecting rail seat, and a reversing rotary drive mechanism. The movable seat is installed at the power output end of the second Y-axis translation drive mechanism, and is driven to translate along the Y-axis by the second Y-axis translation drive mechanism. The connecting rail seat is installed at the power output end of the reversing rotary drive mechanism, and is driven to rotate 90° by the reversing rotary drive mechanism to achieve the switching of the connecting rail being aligned with the Y-axis rail or the X-axis rail.

[0028] Furthermore, the first Y-axis translation drive mechanism includes a pawl, a pawl lifting drive cylinder, and a first Y-axis translation drive module. The upper end of the fixture base plate has a notch. The pawl is driven to descend and engage the notch by the pawl lifting drive cylinder, and the pawl is driven to move the transfer fixture along the Y-axis by the first Y-axis translation drive module.

[0029] Furthermore, the X-axis translation drive device includes a transmission rod, a transmission rod rotation drive mechanism capable of driving the transmission rod to rotate, and an X-axis translation drive mechanism capable of driving the transmission rod to translate along the X-axis. Multiple sets of paddle blocks are installed on the transmission rod, and a locking block is provided on the back of the fixture base plate of the transfer fixture. The locking block can be locked into the gap between the corresponding paddle blocks. The rotation of the transmission rod drives the paddle blocks to rotate to achieve engagement or disengagement with the locking block.

[0030] The X-axis translation drive mechanism is a drive structure that uses a servo motor to drive a nut screw transmission. A nut seat is installed on the nut, and the transmission rod is installed on the nut seat and the two can rotate relative to each other.

[0031] The transmission rod rotation drive mechanism includes a transmission rod rotation drive cylinder and a rocker arm. The transmission rod is provided with a mounting block. One end of the rocker arm is connected to the end of the push rod of the transmission rod rotation drive cylinder, and the other end is rotatably connected to the mounting block through a pin.

[0032] Furthermore, each of the Y-direction linear guide seats, connecting linear guide seats, and X-direction linear guide seats is provided with a stopping mechanism, and the stopping mechanism provided on the X-direction linear guide seat corresponds one-to-one with the corresponding processing station.

[0033] The stop mechanism includes a stop lever and a stop drive cylinder. The tail of the stop lever is installed at the power output end of the stop drive cylinder, and the end of the stop lever can be inserted into the stop part on the back of the fixture base plate of the transfer fixture to limit the movement of the transfer fixture.

[0034] Furthermore, each of the aforementioned loading and unloading devices is also equipped with a cleaning machine, through which the processed products on the transfer fixture are moved into the cleaning machine for cleaning.

[0035] The beneficial effects of this invention are:

[0036] First, this invention integrates functions such as loading, flipping, positioning, processing, and unloading into a single processing system. After a product is clamped once, it can complete multiple processing steps such as fine grinding, milling, tapping, and gear shaping in sequence. The transfer tool can be circulated and reused, which significantly improves processing efficiency.

[0037] Secondly, the transfer line uses the docking and cooperation of the Y-axis rail, the connecting rail and the X-axis rail, and the rotation and reversing device to drive the connecting rail seat to rotate 90° to change direction, so that the transfer fixture carries multiple products and flows between processing stations along the circular line arranged in a square shape; the products do not need to be repeatedly removed and reassembled between processes, and there is no need to equip multiple material handling robots, which is highly efficient.

[0038] Third, the transfer fixture circulates along the U-shaped circulation line, completing one clamping (unloading and loading) at position A and position B respectively. One rotation of the transfer fixture completes two clamping processes, and the transfer fixture is recycled.

[0039] Fourth, the flipping fixture works in conjunction with the secondary positioning fixture to achieve automatic multi-directional positioning of the product. The flipping fixture first flips the product 90° from a horizontal position to an upright position and completes the initial positioning in the Y direction. Then, the secondary positioning fixture simultaneously pushes all products to complete the X-direction positioning, resulting in high positioning accuracy. Furthermore, the secondary positioning fixture can hold multiple products (such as three) at the same time, matching the subsequent processing cycle and improving loading efficiency.

[0040] Fifth, the extension and retraction of the clamping and translational drive cylinder, combined with the elastic connection structure consisting of elastic elements and lever-type levers, enable the opening and clamping of the fixture cover plate: the open state facilitates the handling of products and can be used in conjunction with the pressing mechanism to press and shape incoming products with deflection; the clamping state is maintained by the elastic force of the elastic elements, ensuring reliable clamping, and the structure is simple and ingeniously designed.

[0041] Sixth, the fixture clamping mechanism is installed on the fixture clamping base plate that is driven to rise and fall by the fixture clamping lifting drive cylinder, which facilitates the rising and falling of the fixture clamping mechanism when the fixture is transferred, thus enabling the transfer function.

[0042] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0043] Figure 1 This is a structural schematic diagram of the product of the present invention;

[0044] Figure 2 This is the front view of the present invention;

[0045] Figure 3 This is one of the structural schematic diagrams of the present invention;

[0046] Figure 4 This is a top view of the present invention (the processing device and cleaning machine are not shown);

[0047] Figure 5This is the second structural schematic diagram of the present invention (the processing device and cleaning machine are not shown).

[0048] Figure 6 This is a schematic diagram of the structure of the loading and unloading device and the loading platform of the present invention;

[0049] Figure 7 This is one of the structural schematic diagrams of the loading and unloading device of the present invention;

[0050] Figure 8 This is the second structural schematic diagram of the loading and unloading device of the present invention;

[0051] Figure 9 This is a side view of the pressing and pushing mechanism of the present invention;

[0052] Figure 10 This is a schematic diagram of the feeding platform of the present invention;

[0053] Figure 11 This is one of the structural schematic diagrams of the flipping fixture of the present invention;

[0054] Figure 12 This is the second structural schematic diagram of the flipping fixture of the present invention (simulating different states of the product).

[0055] Figure 13 This is a front view of the flipping fixture of the present invention;

[0056] Figure 14 This is a schematic diagram of the secondary positioning fixture of the present invention;

[0057] Figure 15 This is one of the partial structural schematic diagrams of the flow line of the present invention;

[0058] Figure 16 This is a second partial structural schematic diagram of the flow line of the present invention;

[0059] Figure 17 This is a cross-sectional view (cut along the horizontal plane) of the stopping mechanism at the Y-axis rail seat of the present invention.

[0060] Figure 18 This is one of the structural schematic diagrams of the fixture clamping mechanism and the transfer fixture of the present invention (viewed from one angle);

[0061] Figure 19 This is a second structural schematic diagram of the fixture clamping mechanism and the transfer fixture of the present invention (viewed from another angle).

[0062] Figure 20 This is a schematic diagram of the transfer fixture of the present invention;

[0063] Figure 21This is one of the top views of the transfer fixture of the present invention (the product is in a clamped state).

[0064] Figure 22 This is a second top view of the transfer fixture of the present invention (the product is in the loosened state).

[0065] Figure 23 This is one of the structural schematic diagrams of the X-direction linear guide seat of the present invention;

[0066] Figure 24 This is the second structural schematic diagram of the X-direction linear guide seat of the present invention;

[0067] Figure 25 This is a schematic diagram of the structure of the X-axis translation drive device of the present invention;

[0068] Figure 26 This is a schematic diagram of the structure of the transmission rod of the present invention when it is used in conjunction with the transfer fixture;

[0069] Figure 27 This is a schematic diagram of the structure of the stopping mechanism at the X-direction linear guide seat of the present invention when it is used in conjunction with the transfer fixture;

[0070] The parts in the attached diagram are labeled as follows:

[0071] Product 10, Extension Column 101, Cleaning Machine 20;

[0072] The components include: a loading platform 1, a flipping fixture 11, a first fixture seat 111, a first groove 1111, a flipping lifting mechanism 112, a flipping block 1121, an inclined surface 11211, a flat surface 11212, a slot 11213, a flipping lifting drive cylinder 1122, and a first positioning mechanism 113; a secondary positioning fixture 12, a second fixture seat 121, a second groove 1211, a second positioning mechanism 122, a positioning plate 1221, a second positioning drive cylinder 1222, a positioning column 1223, and a sensor 123; a loading panel 13, a full material area 131, and an empty material area 132.

[0073] Processing device 2;

[0074] Transfer fixture 31, transfer fixture base 311, side support block 3112, fixture cover plate 312, elastic connection structure 313, elastic element 3131, lever 3132, positioning pin 3133, rotating pin 3134, first fixture pressure plate 314, second fixture pressure plate 315, clearance groove 3151, fixture base plate 316, notch 3161, locking block 3162, stop block 3163, V-shaped groove 3164, first Y-axis translation Drive mechanism 317, pawl 3171, pawl lifting drive cylinder 3172, first Y-axis translation drive module 3173, stop mechanism 318, stop lever 3181, stop drive cylinder 3182, fixture clamping mechanism 32, fixture clamping seat 321, abutting block 3211, inclined surface of abutting block 32111, fixture clamping translation drive cylinder 322, fixture clamping base plate 323, fixture clamping lifting drive cylinder 324;

[0075] Y-direction linear guide 4, Y-direction linear guide seat 41;

[0076] Connecting rail 5, connecting rail seat 51, rotary reversing device 52, moving seat 521, reversing rotary drive mechanism 522, second Y-axis translation drive mechanism 523;

[0077] X-direction linear guide 6, X-direction linear guide seat 61, transmission rod slide 611;

[0078] X-axis translation drive device 7, transmission rod 71, lever block 711, mounting block 712, insert block 713, transmission rod rotation drive mechanism 72, transmission rod rotation drive cylinder 721, rocker arm 722, X-axis translation drive mechanism 73, nut seat 731.

[0079] The components include: a loading / unloading device 8, a loading / unloading seat 81, a loading / unloading Y-axis translation drive module 82, a loading / unloading X-axis translation drive module 83, a loading / unloading Z-axis translation drive module 84, a first loading / unloading gripper 85, a clamping arm 851, a support block 852, a loading / unloading lifting drive cylinder 86, a suction nozzle seat 87, a suction nozzle 871, a slide table 872, a second loading / unloading gripper 873, a pressing and pushing mechanism 88, a pressing and pushing lifting drive cylinder 881, a pressing and pushing seat 882, a pushing structure 883, a pushing drive cylinder 8831, a pushing block 8832, a pressing structure 884, a pressing drive cylinder 8841, a pressing block 8842, and a pressing part 88421. Detailed Implementation

[0080] The following specific embodiments illustrate the detailed implementation of the present invention. Those skilled in the art can easily understand the advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented in other different ways, that is, different modifications and changes can be made without departing from the scope disclosed in the present invention.

[0081] The descriptions of positions such as up, down, left, and right in this embodiment are based on the orientation shown in the accompanying drawings and have no special meaning, nor are they intended to limit the scope of protection of this invention. The arrows in the accompanying drawings indicate the flow direction of the transfer fixture on the processing system. Here, the X direction refers to the direction in which the transfer fixture is located... Figure 3 The orientation is defined at position A, and the direction perpendicular to the X direction is defined as the Y direction.

[0082] Example: A processing system with an automatic return mechanism for the transfer fixture, such as... Figures 1 to 5 As shown, the processing system includes a conveyor line, a conveyor fixture 31, a loading / unloading device 8, and a loading platform 1. The system also includes a machine base for supporting the conveyor line, the conveyor fixture, the loading platform, the loading / unloading device, and the processing equipment. Each of the left and right sides of the conveyor line has a loading / unloading device and a loading platform. The conveyor fixture can be circulated and reused along the conveyor line. The loading / unloading device places the product 10 to be processed onto the conveyor fixture and removes the processed product from the conveyor fixture.

[0083] The conveyor line includes a Y-axis rail 4, a connecting rail 5, and an X-axis rail 6. There are two sets of both the Y-axis rail and the X-axis rail. The conveyor line is arranged in a U-shape in the order of Y-axis rail, X-axis rail, Y-axis rail, and X-axis rail. The connecting rail is provided at each connection point of the Y-axis rail and the X-axis rail. When the connecting rail is parallel to the Y-axis, the connecting rail can be aligned with the Y-axis rail. When the connecting rail is rotated 90°, it can be aligned with the X-axis rail.

[0084] The Y-direction linear rail is installed on the Y-direction linear rail seat 41, the connecting linear rail is installed on the connecting linear rail seat 51, and the X-direction linear rail is installed on the X-direction linear rail seat 61.

[0085] Each of the connecting rails is provided with a rotation reversing device 52, which drives the connecting rail to rotate 90°.

[0086] Each of the X-axis linear guides is also provided with an X-axis translation drive device 7, and each of the X-axis linear guides is also provided with multiple processing stations at even intervals. Each processing station is provided with a processing device 2. The transfer fixture is driven from the connecting linear guide to the X-axis linear guide and translated along the X-axis linear guide to realize the movement of the transfer fixture between each processing station, and the product is processed by the corresponding processing device.

[0087] In this embodiment, the processing device mainly consists of an electric spindle driving a cutting tool to rotate and perform corresponding processing on the product, such as fine grinding of the outer circumferential surface of the extended column, milling, tapping, and gear shaping. The processing device also needs to be capable of moving along three axes to facilitate on-demand processing of the product. This part is prior art and will not be elaborated upon.

[0088] The working process of this machining system is as follows:

[0089] The loading / unloading device 8 picks up product 10 from the tray placed on the loading platform and places it onto the flipping fixture (mentioned below). The flipping fixture serves two purposes: first, it achieves positioning in the Y direction; second, it rotates the product 90° so that the product's extension column faces upwards. Then, the loading / unloading device 8 moves it to a secondary positioning fixture for positioning in the X direction. This process is repeated, placing multiple products sequentially onto the secondary positioning fixture. For example, in this embodiment, the secondary positioning fixture can hold three products. The loading / unloading device then places the three positioned products onto a transfer fixture (at this time, the transfer fixture is located on the Y-axis rail). The placement process is as follows: the stopping mechanism relatively fixes the transfer fixture to prevent it from sliding along the Y-axis rail; the fixture clamping mechanism rises to its position and unlocks the transfer fixture to place the product; then, the fixture clamping mechanism retracts and descends back to its original position, leaving the product clamped on the transfer fixture; then, the stopping mechanism retracts, and the first Y-axis translation drive mechanism drives the transfer fixture to move along the Y-axis to the connecting rail; then, the connecting rail... After the rail rotates 90° and the connecting rail rotates 90°, it can be aligned with the X-axis rail. Then, the X-axis translation drive device drives the transfer fixture to move to each processing station. The processing device processes the product. Finally, the transfer fixture moves to the unloading position, and the unloading device puts the product into the washing machine for cleaning. At the same time, the unloading device puts the product to be processed back into the transfer fixture. The transfer fixture continues to flow downwards, repeating the above process until it returns to the original starting point and repeats the unloading and loading process.

[0090] The structure of the loading and unloading device 8 is as follows:

[0091] like Figures 6 to 9 As shown, the loading and unloading device 8 includes a loading and unloading base 81, a loading and unloading Y-axis translation drive module 82, a loading and unloading X-axis translation drive module 83, and a loading and unloading Z-axis translation drive module 84. The loading and unloading base is driven to move along the Y-axis, X-axis, and Z-axis respectively by the loading and unloading Y-axis translation drive module, the loading and unloading X-axis translation drive module, and the loading and unloading Z-axis translation drive module.

[0092] The loading / unloading base is equipped with a first loading / unloading gripper 85 and a loading / unloading lifting drive cylinder 86; a suction nozzle seat 87 is fixedly installed at the power output end of the loading / unloading lifting drive cylinder, and the suction nozzle seat is driven to rise and fall by the loading / unloading lifting drive cylinder. Multiple suction nozzles 871 are fixedly installed at the bottom of the suction nozzle seat; a slide table 872 is also installed on the suction nozzle seat, and a second loading / unloading gripper 873 is installed on the slide table. The slide table can drive the second loading / unloading gripper to slide up and down relative to the suction nozzle seat.

[0093] In this embodiment, the first loading / unloading gripper is a pneumatic gripper, comprising multiple sets of clamping arms 851, each clamping arm having a support block 852. Each set of clamping arms corresponds to one product. The support blocks on the two clamping arms respectively match the extension columns at both ends of the product. The working surface of the support block matches the extension columns of the product. The support blocks on the clamping arms are driven by the drive cylinder of the first loading / unloading gripper to push the two extension columns outward, thereby fixing the product. The second loading / unloading gripper is a common pneumatic gripper. Products are loaded by stacking multiple pallets together. After the products in a pallet are removed, the suction nozzle is responsible for removing the empty pallet. A slide is provided on the suction nozzle seat to avoid interference between the suction nozzle and the second loading / unloading gripper during operation. Under the action of gravity, the lower end of the second loading / unloading gripper will be lower than the position of the suction nozzle, allowing for normal product removal. When removing a pallet, the second loading / unloading gripper first touches the pallet, but because of the slide, the second loading / unloading gripper will move upward until the suction nozzle can pick up the pallet.

[0094] like Figures 6 to 9 As shown, a pressing and pushing mechanism 88 is also installed on the bracket where the loading and unloading Y-axis translation drive module is located. The pressing and pushing mechanism includes a pressing and pushing lifting drive cylinder (881) and a pressing and pushing seat 882. The pressing and pushing seat is installed at the lower end of the pressing and pushing lifting drive cylinder. A pushing structure 883 and a pressing structure 884 are installed on the pressing and pushing seat. The pushing structure (883) includes a pushing drive cylinder 8831 and a pushing block 8832. The pushing block is driven to translate along the Y-axis by the pushing drive cylinder. The pressing structure includes a pressing drive cylinder 8841 and a pressing block 8842. The bottom of the pressing block is provided with multiple pressing parts 88421 (the structure can match the product, such as protrusions, grooves, etc.). The pressing block is driven to lift and lower by the pressing drive cylinder.

[0095] The working process of the loading and unloading device 8 is as follows: The loading and unloading Y-axis translation drive module, the loading and unloading X-axis translation drive module, and the loading and unloading Z-axis translation drive module drive the second loading and unloading gripper to the full material tray of the loading platform to pick up the product and place it on the flipping fixture mentioned below for initial positioning. Then, the second loading and unloading gripper places the product on the secondary positioning fixture. The above process is repeated until the secondary positioning fixture is full of products. Then, the first loading and unloading gripper simultaneously picks up all the products from the secondary positioning fixture and places them on the transfer fixture located on the Y-axis linear guide for the next process.

[0096] The structure of loading platform 1 is as follows:

[0097] like Figures 10 to 14As shown, the loading platform 1 includes a flipping fixture 11 and a secondary positioning fixture 12. The product is placed on the flipping fixture by the loading and unloading device, the product is flipped by the flipping fixture, and the flipped product is placed one by one on the secondary positioning fixture by the loading and unloading device. The secondary positioning fixture 12 is located downstream of the flipping fixture 11.

[0098] The loading platform 1 also includes a loading panel 13, a flipping fixture 11 and a secondary positioning fixture 12 fixedly installed on the loading panel 13. The loading panel 13 is provided with a full material area 131 and an empty material area 132. The full material area 131 is used to place a full material pallet, and the empty material area 132 is used to place an empty pallet.

[0099] The structure of the flipping fixture 11: as follows Figures 10 to 14 As shown, the flipping fixture 11 includes a first fixture base 111, a flipping and lifting mechanism 112, and a first positioning mechanism 113.

[0100] The first fixture base 111 has a first recess 1111 for placing the product 10. For example... Figure 1 As shown, product 10 is a long strip-shaped product, and product 10 has an extension post 101 perpendicular to the length direction at the middle position. The width of the middle position of the first groove 1111 is greater than the width at both ends to match the extension post 101 of product 10.

[0101] The tilting and lifting mechanism 112 includes a tilting block 1121 and a tilting and lifting drive cylinder 1122. The tilting block 1121 is mounted on the power output end of the tilting and lifting drive cylinder 1122. The tilting block 1121 is a wedge-shaped block that is narrower at the top and wider at the bottom. The working surface of the tilting block 1121 includes a downwardly inclined slope 11211 and a flat surface 11212 located below the slope 11211. The distance between the flat surface 11212 and the side of the first groove 1111 is adapted to the width of the product 10 to ensure that the tilting block 1121 can smoothly tilt the product 10 from a horizontal state to an upright state by 90°. A slot 11213 is provided in the middle of the tilting block 1121 to avoid the extension column 101.

[0102] The first positioning mechanism 113 is a first positioning drive cylinder. The first positioning drive cylinder drives its push rod to move, so that the head of the push rod pushes the product 10 to move along the Y direction, and limits the product 10 with one side of the first groove 1111 as the Y-direction positioning reference.

[0103] The structure of the secondary positioning fixture 12: as follows Figures 10 to 14 As shown, the secondary positioning fixture 12 includes a second fixture seat 121 and a second positioning mechanism 122.

[0104] The second fixture base 121 has multiple spaced second grooves 1211 for placing the product 10. In this embodiment, there are three second grooves 1211, which can be adjusted according to actual needs. A sensor 123 for detecting the presence or absence of the product 10 is installed on the second fixture base 121 corresponding to each second groove 1211.

[0105] The second positioning mechanism 122 includes a positioning plate 1221 and a second positioning drive cylinder 1222. The power output end of the second positioning drive cylinder 1222 is fixedly mounted on the positioning plate 1221. Multiple sets of positioning posts 1223 extending along the Z direction are mounted on the positioning plate 1221. The positioning plate 1221 and the multiple sets of positioning posts 1223 are driven to move along the X direction by the second positioning drive cylinder 1222, and the product 10 is limited by using one side of the second groove 1211 as the X-direction positioning reference.

[0106] The working process of the feeding platform 1 is as follows:

[0107] Step 1: Loading. The full material tray is placed in the full material area 131 of the loading panel 13. The second loading and unloading gripper of the loading and unloading device 8 takes the horizontal product 10 from the full material tray and moves it into the first groove 1111 of the flipping fixture 11.

[0108] Step Two: Flipping. The flipping and lifting drive cylinder 1122 drives the flipping block 1121 to lift upwards. Since the working surface of the flipping block 1121 includes a downwardly inclined surface 11211, this inclined surface 11211 contacts the product 10 during the lifting process, gradually changing the product 10 from a horizontal state to an upright state, achieving a 90° flip of the product 10 from a horizontal to an upright state. The slot 11213 opened on the flipping block 1121 avoids the extension column 101 of the product 10 during the flipping process, ensuring smooth flipping. The distance between the plane 11212 below the working surface of the flipping block 1121 and the side of the first groove 1111 is adapted to the width of the product 10, ensuring that the product 10 is stably upright after flipping.

[0109] Step 3: Y-axis positioning. The first positioning drive cylinder of the first positioning mechanism 113 drives its push rod to move, pushing the product 10 to translate along the Y-axis. The product 10 is limited by one side of the first groove 1111 as the Y-axis positioning reference, thus completing the initial Y-axis positioning of the product 10.

[0110] Step 4: Transfer. The first positioning mechanism 113 is released, and the second loading and unloading gripper of the loading and unloading device 8 is in position, moving the initially positioned product 10 into the second groove 1211 of the secondary positioning fixture 12.

[0111] Step 5: Cyclic feeding. Repeat steps one through four above until sensor 123 detects that all the second grooves 1211 of the second fixture seat 121 contain the product 10.

[0112] Step Six: X-axis positioning. The second positioning drive cylinder 1222 drives the positioning plate 1221 and multiple sets of positioning columns 1223 to move along the X-axis. The positioning columns 1223 push all products 10 to move simultaneously along the X-axis. Using one side of the second groove 1211 as the X-axis positioning reference, all products 10 are simultaneously limited, thus completing the X-axis positioning.

[0113] Through the above process, the flipping fixture 11 realizes the transformation of product 10 from a horizontal to an upright state and the positioning of product 10 in one direction (Y direction). Then, in conjunction with the secondary positioning fixture 12, it achieves positioning of product 10 in the other direction (X direction). The ingenious structural design results in high positioning accuracy and improved loading efficiency. The secondary positioning fixture 12 is provided with multiple second grooves 1211, mainly to adapt to the processing rhythm of subsequent processes. In this embodiment, three grooves are provided, which can be adjusted according to actual needs.

[0114] The structures of the transfer fixture 31 and the fixture clamping mechanism 32 are as follows:

[0115] like Figures 15 to 22 As shown, the transfer fixture 31 includes a transfer fixture base 311, a fixture cover plate 312 that can move along the X direction, and an elastic connection structure 313. The upper surface of the transfer fixture base 311 is provided with a plurality of product slots for placing the product 10, and the slot wall on one side of the product slot is the X-direction positioning reference surface (i.e., the long side positioning reference of the product); a side support block 3112 is installed on the transfer fixture base 311.

[0116] like Figures 15 to 22 As shown, the elastic connection structure 313 includes an elastic element 3131, a lever 3132, and a positioning pin 3133. One end of the elastic element 3131 is mounted on the side support block 3112, and the other end is mounted on one end of the lever 3132. The middle position of the lever 3132 is rotatably connected to the transfer fixture seat 311 via a rotating pin 3134. The other end of the lever 3132 is connected to the fixture cover plate 312 via the positioning pin 3133. Thus, the lever 3132 forms a lever structure with the rotating pin 3134 as the fulcrum. When the elastic element 3131 is subjected to a change in force, the lever 3132 can swing to drive the fixture cover plate 312 to reciprocate in the X direction. The elastic element can be a spring, but is not limited to it; it only needs to be able to be compressed and elastically return to its original position.

[0117] like Figures 15 to 22As shown, a first fixture pressure plate 314 and a second fixture pressure plate 315 are also installed on the upper surface of the transfer fixture base 311. The first fixture pressure plate 314 and the second fixture pressure plate 315 are located at both ends of the product slot along its length. One end of the product slot extends to the inner side of the first fixture pressure plate 314, which serves as the Y-axis positioning reference surface (i.e., the short side positioning reference of the product). The second fixture pressure plate 315 is provided with several clearance grooves 3151 that mate with the product slot. Therefore, after the loading and unloading device places the product 10 into the product slot, the device's own pushing structure pushes the product 10 inward along the clearance grooves, positioning the product 10 with the inner side of the first fixture pressure plate as the Y-axis positioning reference surface.

[0118] like Figures 15 to 22 As shown, the fixture clamping mechanism 32 includes a fixture clamping seat 321 and a fixture clamping translation drive cylinder 322. The fixture clamping seat 321 is installed at the power output end of the fixture clamping translation drive cylinder 322. One end face of the fixture clamping seat 321 is provided with a pressing block 3211. One end of the elastic connecting structure 313 is connected to the fixture cover plate 312, and the other end can abut against the pressing block 3211. One working surface of the pressing block 3211 is an inclined surface 32111: when the side of the pressing block is used to compress the elastic member 3131, it is set as an inclined surface 32111; when the side of the pressing block is used to guide the side support block 3112, it can be set as a vertical plane.

[0119] like Figures 15 to 22 As shown, in this embodiment, there are three product slots. The fixture clamping mechanisms 32 on both sides of the transfer fixture 31 are used to drive the translation of two fixture cover plates 312 and the other to drive the translation of one fixture cover plate 312. The number of fixture clamping mechanisms 32 and the number of fixture clamping blocks 3211 on the end face of the fixture clamping seat 321 can be designed according to the number of product slots on the transfer fixture 31.

[0120] The working process of transfer fixture 31 and fixture clamping mechanism 32 (in combination) Figure 21 and Figure 22 ):

[0121] The terms "up" and "down" described here refer to... Figure 21 and Figure 22 In this context, "up and down" refers to movement in the X direction. For clarity, we use "up" and "down" to describe the movement.

[0122] Loosen (as) Figure 22As shown): The push rod of the jig clamping translation drive cylinder 322 extends, driving the jig clamping seat 321 and the abutment block 3211 to translate along the Y direction; the inclined surface 32111 of the abutment block 3211 presses the elastic element 3131, causing the end of the lever 3132 near the elastic element 3131 to move upward, and the lever 3132 rotates with the rotating pin 3134 as the fulcrum, driving the jig cover plate 312 to translate away from the product groove wall (X-direction positioning reference plane); at this time, the distance between the side of the jig cover plate 312 and the product groove wall is relatively large, and the transfer jig 31 is in the loose state, which makes it convenient for other material handling mechanisms to place multiple products 10 into the product groove in sequence.

[0123] Y-axis positioning: After the product is placed in the product slot, the pushing structure of other mechanisms pushes the product towards the side closer to the first fixture pressure plate 314, so that the product is positioned in the Y-axis with the inner side of the first fixture pressure plate 314 as the Y-axis positioning reference surface. Since some products have different degrees of deflection when they are received, they can be pressed and shaped by the pressing structure in the loose state.

[0124] Clamp (e.g.) Figure 21 As shown): The push rod of the clamping translation drive cylinder 322 retracts, the elastic force of the elastic element 3131 is released, causing the end of the lever 3132 near the elastic element 3131 to move downward. The lever 3132 rotates in the opposite direction with the rotating pin 3134 as the fulcrum, driving the fixture cover plate 312 to translate towards the X-direction positioning reference surface, thereby clamping multiple products and realizing the clamping and positioning of multiple products along the X-direction; the pressing mechanism is lifted.

[0125] The fixture clamping mechanism 32 is mounted on the fixture clamping base plate 323. The bottom of the fixture clamping base plate 323 is connected to a fixture clamping lifting drive cylinder 324 that can drive it to rise and fall, thereby facilitating the realization of the transfer function of the transfer fixture 31.

[0126] The structure of the flow line is as follows:

[0127] like Figure 5 , Figures 15 to 17 As shown, the transfer fixture 31 also includes a fixture base plate 316, and a transfer fixture seat 311 is mounted on the fixture base plate 316. The fixture base plate 316 can translate along the Y-axis rail 4, the connecting rail 5, and the X-axis rail 6. The upper end of the fixture base plate 316 has a notch 3161; the back of the fixture base plate 316 is provided with a locking block 3162, and two stops 3163 are also provided on the back, with a V-shaped groove 3164 (i.e., the stop part described below) formed between adjacent stops 3163.

[0128] like Figure 5 , Figures 15 to 17As shown, the transfer fixture 31 is driven by a first Y-axis translation drive mechanism 317, translating along the Y-axis linear guide 4 and the connecting linear guide 5. The first Y-axis translation drive mechanism 317 includes a pawl 3171, a pawl lifting drive cylinder 3172, and a first Y-axis translation drive module 3173: the pawl 3171 is driven to descend and engage with the notch 3161 by the pawl lifting drive cylinder 3172, and the transfer fixture 3171 is driven by the first Y-axis translation drive module 3173 to translate along the Y-axis. The first Y-axis translation drive module 3173 and the second Y-axis translation drive mechanism 523 described below can be a transmission mechanism of a servo motor and a nut screw, or a linear module drive, but are not limited to these. As long as the purpose of driving translation is achieved, it is acceptable. This is prior art and will not be described in detail.

[0129] like Figure 4 , Figure 5 , Figures 15 to 17 As shown, a rotary reversing device 52 is provided at the connecting rail 5. The rotary reversing device 52 includes a movable seat 521, a connecting rail seat 51, and a reversing rotary drive mechanism 522: the movable seat 521 is installed at the power output end of the second Y-axis translation drive mechanism 523, and is driven to translate along the Y-axis by the second Y-axis translation drive mechanism 523; the connecting rail seat 51 is installed at the power output end of the reversing rotary drive mechanism 522, and is driven to rotate 90° by the reversing rotary drive mechanism 522. The reversing rotary drive mechanism 522 can be a servo motor combined with a cam divider mechanism, but is not limited to this; it is sufficient to achieve the purpose of driving the connecting rail seat 51 to rotate 90°. This is existing technology and will not be described in detail.

[0130] like Figure 5 , Figure 19 and Figure 27 As shown, the Y-axis guide rail seat 41, the connecting guide rail seat 51, and the X-axis guide rail seat 61 are all equipped with stopping mechanisms 318, which are evenly spaced on the X-axis guide rail seat 61. Each stopping mechanism 318 on the X-axis guide rail seat 61 corresponds to a workstation. Figure 17 and Figure 27 As shown, the stop mechanism 318 includes a stop lever 3181 and a stop drive cylinder 3182. The tail of the stop lever 3181 is installed at the power output end of the stop drive cylinder 3182. The end of the stop lever 3181 is a pointed tip that matches the V-shaped groove 3164, which makes it easier for the stop lever 3181 to be inserted more smoothly between the two stops 3163, thereby fixing the transfer fixture 31 at the corresponding work station for processing.

[0131] like Figures 23 to 26 As shown, an X-axis translation drive device 7 is also provided at the X-axis rail 6. The X-axis translation drive device 7 drives the transfer fixture 31 to enter the X-axis rail 6 from the connecting rail 5 and translate along the X-axis rail 6.

[0132] The X-axis translation drive device 7 includes a transmission rod 71, a transmission rod rotation drive mechanism 72 capable of driving the transmission rod to rotate, and an X-axis translation drive mechanism 73 capable of driving the transmission rod to translate along the X-axis. Multiple sets of levers 711 are mounted on the transmission rod 71. A locking block 3162 on the back of the fixture base plate of the transfer fixture can engage with the gaps between the corresponding levers 711, thereby driving the transfer fixture 31 to move synchronously via the levers 711 when the transmission rod 71 translates along the X-axis.

[0133] like Figures 23 to 26 As shown, the X-axis translation drive mechanism 73 is a drive structure driven by a servo motor and a nut screw transmission. A nut seat 731 is mounted on the nut, and the transmission rod 71 is mounted on the nut seat 731, allowing relative rotation between them. Specifically, two insert blocks 713 are provided in the middle of the transmission rod 71, and the end of the nut seat 731 forms an arc-shaped groove. The end of the nut seat 731 is inserted between the two insert blocks 713, and the transmission rod 71 is located within the arc-shaped groove. This matching method between the nut seat 731 and the transmission rod 71 enables the transmission rod 71 to translate along the X-axis without interfering with its rotation. The front of the X-axis linear guide seat 61 is provided with multiple transmission rod slides 611 evenly spaced. The transmission rod slides 611 support the transmission rod 71 and also have arc-shaped grooves that match the transmission rod 71, ensuring that the transmission rod 71 does not interfere with its rotation along its axis.

[0134] like Figures 23 to 26 As shown, the transmission rod rotation drive mechanism 72 includes a transmission rod rotation drive cylinder 721 and a rocker arm 722. A mounting block 712 is provided on the transmission rod 71. One end of the rocker arm 722 is connected to the end of the push rod of the transmission rod rotation drive cylinder 721, and the other end is rotatably connected to the mounting block 712 via a pin. By extending or retracting the push rod of the transmission rod rotation drive cylinder 721, the rocker arm 722 is driven to swing, thereby causing the transmission rod 71 to rotate clockwise or counterclockwise around its axis by a certain angle, causing the locking block 3162 of the fixture base plate to disengage from or engage with the lever block 711.

[0135] The working process of the X-axis translation drive device 7 is as follows: When the transfer fixture 31 needs to move along the X-axis rail 6, the stop drive cylinder 3182 drives the stop lever 3181 to retract, no longer engaging in the V-shaped groove 3164 on the back of the fixture base plate, and the transfer fixture 31 is in a state where it can translate along the X-axis rail 6; the push rod of the transmission rod rotation drive cylinder 721 retracts, driving the rocker arm 722 to move, causing the transmission rod 71 to rotate a certain angle along its axis, so that the locking block 3162 of the fixture base plate disengages from the lever 711 of the transmission rod 71; Figure 24 As shown, the X-axis translation drive mechanism 73 drives the nut seat 731 to move to the right along the X-axis (i.e., to the right of the nut seat 731). Figure 24The transmission rod rotates in the opposite direction to the center arrow, moving a predetermined distance (i.e., the distance between two adjacent workstations); the push rod of the transmission rod rotation drive cylinder 721 extends, driving the rocker arm 722 to move in the opposite direction, causing the transmission rod 71 to rotate in the opposite direction along its axis by a certain angle, so that the locking block 3162 on the back of the fixture base plate of the previous workstation is inserted precisely between the corresponding set of lever blocks 711 on the transmission rod 71; the X-direction translation drive mechanism 73 drives the nut seat 731 to translate to the left in the X direction (i.e., in the opposite direction to the center arrow). Figure 24 (In the same direction as the middle arrow) the predetermined distance, that is, moving the transfer fixture 31 from the previous station to the next station; then the stop drive cylinder 3182 drives the stop lever 3181 to extend and engage in the V-shaped groove 3164, and the transfer fixture 31 is relatively fixed on the X-direction linear guide 6 and will not move anymore, so the corresponding processing can be performed. Then the above actions are repeated until all processes of the product are completed.

[0136] The working process and working principle of the production line (combined with Figure 4 and Figure 5 )

[0137] 1. Loading and clamping at location A: Transfer fixture 31 is located at... Figure 4 At position A, the stop mechanism 318 fixes the transfer fixture 31 relatively on the Y-axis linear guide seat 41; the fixture clamping lifting drive cylinder 324 drives the fixture clamping base plate 323 to rise, making the fixture clamping mechanism 32 flush with the transfer fixture 31; the push rod of the fixture clamping translation drive cylinder 322 extends, driving the abutment block 3211 to squeeze the elastic element 3131, causing the fixture cover plate 312 to move away from the product groove wall, and the transfer fixture 31 is in the released state; then the processes of Y-axis positioning, pressing and shaping, and X-axis clamping positioning are performed; after that, the push rod of the fixture clamping translation drive cylinder 322 retracts, and the fixture clamping lifting drive cylinder 324 drives the fixture clamping base plate 323 to descend back to its original position.

[0138] 2. Y-axis transfer to connecting rail: The first Y-axis translation drive module 3173 and the pawl lifting drive cylinder 3172 drive the pawl 3171 to engage in the notch 3161 of the fixture base plate 316; at this time, the connecting rail seat 51 below is parallel to the Y-axis and has been driven to move the seat 521 by the second Y-axis translation drive mechanism 523, so that the connecting rail seat 51 is aligned with the Y-axis rail seat 41 (connecting rail 5 and Y-axis rail 4 are connected); the stop mechanism 318 retracts and no longer fixes the transfer fixture 31; the first Y-axis translation drive module 3173 drives the transfer fixture 31 to move onto the connecting rail 5 of the connecting rail seat 51.

[0139] 3. Reversal: The second Y-axis translation drive mechanism 523 drives the moving seat 521 to translate along the Y-axis (moving together with the connecting rail seat 51), so that the connecting rail seat 51 is aligned with the X-axis rail seat 61; then the reversal rotation drive mechanism 522 drives the connecting rail seat 51 to rotate 90°, at which time the connecting rail 5 is parallel to the X-axis and docks with the X-axis rail 6.

[0140] 4. X-axis transfer and station-by-station processing: The X-axis translation drive device 7 drives the transfer fixture 31 from the connecting rail 5 into the X-axis rail 6, and moves along the X-axis rail 6 between each station; the transfer fixture 31 moves the distance between two adjacent stations each time, and is precisely limited by the stop mechanism 318 station by station, and completes each process in sequence until the product is finished.

[0141] 5. Downstream reversal and return to position B for unloading and loading: After processing, the transfer fixture 31 enters the downstream connecting rail 5; the connecting rail 5 rotates 90° and becomes parallel to the Y direction, then enters the downstream Y-direction rail 4, i.e. Figure 4 At position B, the fixture clamping mechanism 32 rises and aligns with the transfer fixture 31, driving the transfer fixture 31 into a released state. The processed product is removed using other material handling devices, and the product to be processed is placed on the transfer fixture 31 at position B. Subsequently, Y-axis positioning and pressing are performed, and then the push rod of the fixture clamping translation drive cylinder 322 retracts to complete X-axis clamping and positioning. The fixture clamping lifting drive cylinder 324 drives the fixture clamping base plate 323 to descend and return to its original position. The transfer fixture 31 continues to move counter-clockwise, carrying a new batch of products.

[0142] 6. Circulation: The transfer fixture 31 continues to move counterclockwise, repeating the above process until it moves to position A, and repeats the unloading and loading process; in this way, the transfer fixture 31 is recycled, and one transfer fixture completes two clamping and processing cycles in one cycle.

[0143] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure made using the contents of the present invention specification and drawings, or directly or indirectly applied to other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A processing system with an automatic return mechanism for transfer fixtures, characterized in that: The processing system includes a transfer line, a transfer fixture (31), a loading and unloading device (8), and a loading platform (1). The loading and unloading positions on the left and right sides of the transfer line are respectively provided with a loading and unloading device and a loading platform. The transfer fixture can be circulated and reused along the transfer line. The product to be processed (10) is placed on the transfer fixture and the processed product is removed from the transfer fixture through the loading and unloading device. The transfer line includes a Y-axis rail (4), a connecting rail (5), and an X-axis rail (6). The Y-axis rail and the X-axis rail are provided in two sets. The transfer line is arranged in a U-shape in the order of Y-axis rail, X-axis rail, Y-axis rail, and X-axis rail. The connecting rail is provided at each connection point of the Y-axis rail and the X-axis rail. When the connecting rail is parallel to the Y-axis, the connecting rail can be aligned with the Y-axis rail. When the connecting rail is rotated 90°, it can be aligned with the X-axis rail. The Y-direction rail is installed on the Y-direction rail seat (41), the connecting rail is installed on the connecting rail seat (51), and the X-direction rail is installed on the X-direction rail seat (61). Each of the connecting rails is provided with a rotation reversing device (52), which drives the connecting rail to rotate 90°. Each of the X-axis linear rails is also provided with an X-axis translation drive device (7), and each of the X-axis linear rails is also provided with multiple processing stations at even intervals. Each processing station is provided with a processing device (2). The X-axis translation drive device drives the transfer fixture from the connecting rail into the X-axis linear rail and translates along the X-axis linear rail to realize the movement of the transfer fixture between each processing station, and the product is processed by the corresponding processing device.

2. The processing system with automatic return of the transfer fixture according to claim 1, characterized in that: The loading and unloading device (8) includes a loading and unloading base (81), a loading and unloading Y-axis translation drive module (82), a loading and unloading X-axis translation drive module (83), and a loading and unloading Z-axis translation drive module (84). The loading and unloading base is driven to move along the Y-axis, X-axis, and Z-axis respectively by the loading and unloading Y-axis translation drive module, the loading and unloading X-axis translation drive module, and the loading and unloading Z-axis translation drive module. The loading and unloading base is equipped with a first loading and unloading gripper (85) and a loading and unloading lifting drive cylinder (86). The first loading and unloading gripper (85) grips several products. A suction nozzle seat (87) is fixedly installed at the power output end of the loading and unloading lifting drive cylinder. The suction nozzle seat is driven to rise and fall by the loading and unloading lifting drive cylinder. Multiple suction nozzles (871) are fixedly installed at the bottom of the suction nozzle seat. A slide (872) is also installed on the suction nozzle seat. A second loading and unloading gripper (873) is installed on the slide. The slide can drive the second loading and unloading gripper to slide up and down relative to the suction nozzle seat.

3. The processing system with automatic return of the transfer fixture according to claim 2, characterized in that: The mounting bracket on which the loading and unloading Y-axis translation drive module is located is also equipped with a pressing and pushing mechanism (88). The pressing and pushing mechanism includes a pressing and pushing lifting drive cylinder (881) and a pressing and pushing seat (882). The pressing and pushing seat is installed at the lower end of the pressing and pushing lifting drive cylinder. The pressing and pushing seat is equipped with a pushing structure (883) and a pressing structure (884). The pushing structure (883) includes a pushing drive cylinder (8831) and a pushing block (8832). The pushing block is driven to translate along the Y-axis by the pushing drive cylinder and is positioned in the Y-axis direction with one side of the transfer fixture as the Y-axis positioning reference. The pressing structure includes a pressing drive cylinder (8841) and a pressing block (8842). The bottom of the pressing block is provided with multiple pressing parts (88421). The pressing block is driven to lift and lower by the pressing drive cylinder.

4. The processing system with automatic return of the transfer fixture according to claim 1, characterized in that: The loading platform (1) includes a flipping fixture (11) and a secondary positioning fixture (12). The product is placed on the flipping fixture by the loading and unloading device, the product is flipped by the flipping fixture, and the flipped product is placed one by one on the secondary positioning fixture by the loading and unloading device. The secondary positioning fixture is located downstream of the flipping fixture; the flipping fixture (11) includes a first fixture seat (111), a flipping lifting mechanism (112) and a first positioning mechanism (113). The first fixture seat has a first groove (1111) for placing the product (10). The flipping lifting mechanism lifts the product from below to flip it at a certain angle. The first positioning mechanism pushes the product to move along the Y direction and limits it with one side of the first groove as the Y-direction positioning reference. The secondary positioning fixture (12) includes a second fixture seat (121) and a second positioning mechanism (122). The second fixture seat has multiple spaced second grooves (1211) for placing products. The second positioning mechanism simultaneously pushes all products to move along the X direction and limits them by using one side of the second groove as the X-direction positioning reference.

5. The processing system with automatic return of the transfer fixture according to claim 1, characterized in that: The machine tool of the processing system is also provided with a fixture clamping mechanism (32) that can be raised and lowered along the Z direction. The transfer fixture (31) includes a transfer fixture seat (311), a fixture cover plate (312) that can move along the X direction, and an elastic connection structure (313). The fixture clamping mechanism (32) includes a fixture clamping seat (321) and a fixture clamping translation drive cylinder (322). The upper surface of the transfer fixture seat is provided with several product slots for placing products (10). The product slots are L-shaped slots. The fixture cover plate is located on the other side of the product slots. The fixture clamping seat is installed on the power output end of the fixture clamping translation drive cylinder. One end face of the fixture clamping seat is provided with a pressing block (3211). One end of the elastic connection structure is connected to the fixture cover plate and the other end can abut against the pressing block. The pressing block can squeeze the elastic connection structure to make the elastic connection structure store energy. The jig clamping translation drive cylinder pushes the jig clamping seat and its end face abutment block to translate along the Y direction, thereby driving the elastic connection structure to drive the jig cover plate to translate along the X direction and release the product; when the jig clamping translation drive cylinder retracts, the elastic force of the elastic connection structure is released, driving the jig cover plate to translate in the opposite direction along the X direction and clamp the product.

6. The processing system with automatic return of the transfer fixture according to claim 5, characterized in that: The elastic connection structure includes an elastic element (3131), a lever (3132), and a positioning pin (3133). A side support block (3112) is installed on the transfer fixture seat. One end of the elastic element is installed on the side support block and the other end is installed on one end of the lever. The middle position of the lever is rotatably connected to the transfer fixture seat through a rotating pin (3134). The other end of the lever is connected to the fixture cover plate through the positioning pin.

7. The processing system with automatic return of the transfer fixture according to claim 5, characterized in that: The upper surface of the transfer fixture base is also equipped with a first fixture pressure plate (314) and a second fixture pressure plate (315), which are located at both ends of the product groove, respectively. One end of the product slot extends to the inner side of the first fixture pressure plate, the inner side of the first fixture pressure plate is a Y-direction positioning reference surface, and the second fixture pressure plate is provided with a plurality of clearance slots (3151) that mate with the product slot.

8. The processing system with automatic return of the transfer fixture according to claim 1, characterized in that: The transfer fixture (31) also includes a fixture base plate (316), the transfer fixture seat is mounted on the fixture base plate, and the fixture base plate can translate along the Y-axis rail, the connecting rail and the X-axis rail; the transfer fixture is driven to translate along the Y-axis rail and the connecting rail by the first Y-axis translation drive mechanism (317); The rotary reversing device (52) includes a movable seat (521), the connecting rail seat (51), and a reversing rotary drive mechanism (522). The movable seat is installed at the power output end of the second Y-axis translation drive mechanism (523), and the movable seat is driven to translate along the Y-axis by the second Y-axis translation drive mechanism. The connecting rail seat is installed at the power output end of the reversing rotary drive mechanism, and the connecting rail seat is driven to rotate 90° by the reversing rotary drive mechanism to achieve the switching of the connecting rail being aligned with the Y-axis rail or the X-axis rail.

9. The processing system with automatic return of the transfer fixture according to claim 8, characterized in that: The first Y-axis translation drive mechanism (317) includes a pawl (3171), a pawl lifting drive cylinder (3172), and a first Y-axis translation drive module (3173). The upper end of the fixture base plate has a notch (3161). The pawl is driven to descend and engage the notch by the pawl lifting drive cylinder, and the pawl is driven to move the transfer fixture along the Y-axis by the first Y-axis translation drive module.

10. The processing system with automatic return of the transfer fixture according to claim 8, characterized in that: The X-axis translation drive device (7) includes a transmission rod (71), a transmission rod rotation drive mechanism (72) capable of driving the transmission rod to rotate, and an X-axis translation drive mechanism (73) capable of driving the transmission rod to translate along the X-axis. Multiple sets of paddle blocks (711) are installed on the transmission rod. The back of the fixture base plate of the transfer fixture is provided with a locking block (3162). The locking block can be locked into the gap between the corresponding paddle blocks. The rotation of the transmission rod drives the paddle blocks to rotate in order to engage or disengage with the locking block. The X-axis translation drive mechanism is a drive structure of servo motor driving nut screw transmission. A nut seat (731) is installed on the nut, and the transmission rod is installed on the nut seat and the two can rotate relative to each other. The transmission rod rotation drive mechanism (72) includes a transmission rod rotation drive cylinder (721) and a rocker arm (722). The transmission rod is provided with a mounting block (712). One end of the rocker arm is connected to the end of the push rod of the transmission rod rotation drive cylinder, and the other end is rotatably connected to the mounting block through a pin.

11. The processing system with automatic return of the transfer fixture according to claim 1, characterized in that: Each of the Y-direction linear guide seats, connecting linear guide seats and X-direction linear guide seats is provided with a stopping mechanism (318), and the stopping mechanism provided on the X-direction linear guide seat corresponds one-to-one with the corresponding processing station. The stop mechanism (318) includes a stop lever (3181) and a stop drive cylinder (3182). The tail of the stop lever is installed at the power output end of the stop drive cylinder, and the end of the stop lever can be inserted into the stop part on the back of the fixture base plate of the transfer fixture to limit the transfer fixture.

12. The processing system with automatic return of the transfer fixture according to any one of claims 1 to 11, characterized in that: Each of the loading and unloading devices is also equipped with a cleaning machine (20), which moves the processed products on the transfer fixture to the cleaning machine for cleaning.

Images