Juicer full-automatic assembly test line

Abstract

This invention discloses a fully automatic assembly and testing line for juicers, relating to the technical field of juicer production equipment. The fully automatic assembly and testing line includes: a conveyor line with a tray transfer line; the transfer trays rotate along the conveyor line; a motor mounting plate loading device for mounting the motor mounting plate onto the motor located in the motor positioning assembly; a screw-locking device for locking the motor mounting plate to the motor and the motor mounting plate to the product; a pressure testing device including a pressure testing frame and a top probe module, a bottom probe module, and a button striking module disposed on the frame; the pressure testing frame also includes a pressure testing receiving line and a pressure testing lifting component, the latter used to lift the transfer tray away from the pressure testing receiving line; and a foot mounting device for mounting the foot rubber to the bottom shell. The fully automatic assembly and testing line for juicers provided by this invention enables multi-station interconnection and cooperation, achieving fully automated assembly and testing.

Description

Technical Field

[0001] This invention relates to the field of juicer production equipment technology, and in particular to a fully automatic juicer assembly and testing line. Background Technology

[0002] Juicers (also known as food processors or blenders) are a widely used household kitchen appliance with huge market demand and rapid model updates. In the manufacturing process, the assembly and pre-shipment quality inspection of juicers are crucial steps to ensure reliable product performance and safe use. Electrical safety testing and operational performance testing are particularly important.

[0003] Existing automation solutions often consist of isolated equipment, resulting in poor integration between assembly and testing processes. Testing stations are typically independent, discrete units requiring manual loading and unloading or simple conveyor belt connections, failing to deeply integrate with robots and intelligent logistics systems in upstream and downstream processes. This leads to poor production line flexibility, making it difficult to quickly respond to the switching needs of co-production and testing of different juicer models. Summary of the Invention

[0004] The main objective of this invention is to provide a fully automated assembly and testing line for juicers, aiming to solve the technical problems of current juicer production lines having multiple discrete assembly and testing stations that still rely on manual coordination, resulting in poor production line flexibility and reduced production efficiency.

[0005] To achieve the above objectives, the present invention proposes a fully automatic assembly and testing line for a juicer, comprising:

[0006] A conveyor line for conveying juicers, the conveyor line being equipped with a tray transfer line;

[0007] The transfer tray flows along the conveyor line. The transfer tray is provided with a motor positioning component for placing the motor, a button limiting block for placing the button, a product support for placing the product, and a bottom shell limiting block for placing the bottom shell.

[0008] A motor mounting plate loading device is used to mount a motor mounting plate onto a motor located in the motor positioning assembly;

[0009] A screw-locking device for fastening the motor mounting plate to the motor and for mounting the motor to the product;

[0010] A pressure resistance testing device includes a pressure resistance testing frame and a top probe module, a bottom probe module, and a button striking module disposed on the frame. The top probe module is used to test the screws of the bottom shell, the button striking module is used to strike the buttons of the product to test them, and the bottom probe module is used to test the motor output shaft of the product. The pressure resistance testing frame also includes a pressure resistance testing receiving line and a pressure resistance testing lifting assembly. A tray transfer line adapted to the pressure resistance testing device transports the transfer tray to the pressure resistance testing receiving line. The pressure resistance testing lifting assembly is disposed on the outer periphery of the pressure resistance testing receiving line and is used to lift the transfer tray away from the pressure resistance testing receiving line.

[0011] Foot rubber installation equipment for installing foot rubber onto the bottom shell.

[0012] In one embodiment, the pressure test lifting assembly includes a first lifting cylinder and a second lifting cylinder that move synchronously. The first lifting cylinder is connected to a first lifting plate. One end of the first lifting plate is provided with a first positioning pin adapted to the transfer tray, and the other end is provided with a conductive pin adapted to the transfer tray. The second lifting cylinder is connected to a second lifting plate. One end of the second lifting plate is provided with a second positioning pin adapted to the transfer tray. The first positioning pin and the second positioning pin are diagonally engaged with the transfer tray.

[0013] In one embodiment, the top probe module includes a top probe cylinder and a top probe plate connected thereto, the top probe plate being provided with screw probes; the bottom probe module includes a bottom probe cylinder and a bottom probe plate connected thereto, the bottom probe plate being provided with shaft probes; the button striking module includes a striking mounting plate and a striking cylinder disposed on the striking mounting plate, the striking cylinder being connected with a striking head, the striking head being used to strike the button of the product.

[0014] In one embodiment, the pressure resistance testing equipment is provided with multiple testing stations, each of which performs screw testing, button impact testing, and motor output shaft testing.

[0015] In one embodiment, the motor mounting plate loading device includes a tray mechanism and a motor mounting plate transfer robot. The motor mounting plate transfer robot picks up the motor mounting plate of the tray mechanism and transfers it to the motor of the transfer tray. The tray mechanism includes a tray transfer line with a loading position, a positioning position, and a unloading position. The tray transfer line transports the tray sequentially through the loading position, the positioning position, and the unloading position.

[0016] In one embodiment, the conveyor line is further provided with a line lifting device, which includes a line tray lifting cylinder and a line tray lifting frame. The line tray lifting cylinder drives the line tray lifting frame to lift and lower the transfer tray; and / or,

[0017] The conveyor line is also equipped with a steering device, which includes a steering bracket, a steering lifting cylinder and a steering motor. The steering lifting cylinder is connected to the steering bracket, the steering bracket is connected to a steering wheel, the steering wheel is provided with a limit post and is adapted to the transfer tray, and the steering motor is located on the steering bracket and drives the steering wheel to rotate.

[0018] In one embodiment, the conveyor line includes a first line and a second line, and a transfer mechanism is provided between the two. The transfer mechanism includes a transfer motor, a transfer turntable, and a transfer wire. The transfer motor is connected to the transfer turntable and drives the transfer turntable to rotate. The transfer wire is disposed on the transfer turntable. The rotation of the transfer turntable causes the transfer wire to engage with the first line or the second line.

[0019] In one embodiment, the foot rubber installation device includes a foot rubber feeding mechanism, a foot rubber installation robot, and a feeding platform. The foot rubber feeding mechanism delivers foot rubber to the feeding platform, and the foot rubber installation robot picks up the foot rubber from the feeding platform and installs it onto the bottom shell.

[0020] In one embodiment, the motor positioning assembly includes a motor mounting base, a first motor limiting clamp, and a second motor limiting clamp. The motor mounting base has a motor positioning hole, one end of the motor is disposed in the motor positioning hole, and the other end is accommodated in the space enclosed by the second motor limiting clamp. The first motor limiting clamp surrounds both sides of the motor.

[0021] In one embodiment, the fully automatic assembly and testing line for the juicer further includes an NG line, which is equipped with an NG receiving conveyor line. The NG receiving conveyor line is adapted to the tray transfer line and receives the transfer trays containing NG products conveyed by the tray transfer line.

[0022] This invention constructs a continuous automated production line by employing an integrated conveyor line, transfer tray, motor mounting plate loading equipment, screw fastening equipment, and foot rubber installation equipment. The transfer tray integrates motor positioning components, button limit blocks, product support bases, and bottom shell limit blocks, enabling precise positioning and synchronous transfer of the juicer's core components. This eliminates the need for manual intervention throughout the entire process, from component loading to assembly, testing, and accessory (foot rubber) installation, significantly improving production efficiency and overall capacity compared to traditional manual testing. For critical electrical safety testing, this invention integrates a fully automated withstand pressure testing device. Its top probe module, bottom probe module, and button impact module automatically and accurately perform withstand pressure tests on the base screws, motor output shaft, and product buttons. This process is completed automatically by the equipment, ensuring consistent probe contact position, pressure, and testing sequence. This eliminates random errors caused by manual operation, improves the accuracy of test data and the reliability of result judgment, and ensures the safety and quality of the finished product. The transfer tray can move between assembly and testing stations, allowing the production line to flexibly adjust the process sequence. By changing or adjusting the positioning components and testing fixtures on the transfer tray, it can adapt to the co-production and testing needs of different models of juicers, thereby enhancing the flexibility of the production line and the speed of market response. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0024] Figure 1 This is a top view of an embodiment of the fully automatic juicer assembly and testing line provided by the present invention.

[0025] Figure 2 This is a schematic diagram of the transfer tray structure of an embodiment of the fully automatic juicer assembly and testing line provided by the present invention;

[0026] Figure 3 This is a schematic diagram of the pressure resistance testing equipment in an embodiment of the fully automatic assembly and testing line for juicers provided by the present invention.

[0027] Figure 4 This is a partial structural schematic diagram of the pressure resistance testing equipment in an embodiment of the fully automatic juicer assembly and testing line provided by the present invention;

[0028] Figure 5 This is a schematic diagram of the structure of the motor mounting plate feeding device in an embodiment of the fully automatic assembly and testing line for juicers provided by the present invention;

[0029] Figure 6 This is a schematic diagram of the screw-locking device and the line lifting device in an embodiment of the fully automatic assembly and testing line for juicers provided by the present invention;

[0030] Figure 7 This is a schematic diagram of the steering device in an embodiment of the fully automatic assembly and testing line for juicers provided by the present invention.

[0031] Figure 8 This is a schematic diagram of the transfer mechanism in an embodiment of the fully automatic assembly and testing line for juicers provided by the present invention.

[0032] Figure 9 This is a top view of the foot mounting device in an embodiment of the fully automatic assembly and testing line for juicers provided by the present invention.

[0033] Explanation of icon numbers:

[0034] 100. Conveyor line; 110. Pallet transfer line; 120. Line lifting device; 121. Line pallet lifting cylinder; 122. Line pallet lifting frame; 130. Steering device; 131. Steering bracket; 132. Steering lifting cylinder; 133. Steering motor; 134. Steering wheel; 135. Limiting post; 140. First line; 150. Second line; 160. Transfer mechanism; 161. Transfer turntable; 162. Transfer line; 170. NG line;

[0035] 200. Transfer tray; 210. Motor positioning assembly; 211. Motor mounting base; 212. First motor limiting clamp; 213. Second motor limiting clamp; 220. Button limiting block; 230. Support base; 240. Bottom shell limiting block;

[0036] 300. Motor mounting plate loading equipment; 310. Material tray mechanism; 311. Material tray transfer line; 320. Motor mounting plate transfer robot;

[0037] 400. Screw fastening equipment;

[0038] 500. Withstand voltage test equipment; 510. Withstand voltage test frame; 520. Top probe module; 521. Top probe cylinder; 522. Top probe plate; 523. Screw probe; 530. Bottom probe module; 531. Shaft probe; 540. Button striking module; 541. Striking mounting plate; 542. Striking cylinder; 543. Striking head; 550. Withstand voltage test load-bearing line; 560. Withstand voltage test lifting assembly; 561. First lifting cylinder; 562. Second lifting cylinder; 563. First lifting plate; 564. First positioning pin; 565. Conductive pin; 566. Second lifting plate; 567. Second positioning pin;

[0039] 600. Foot rubber installation equipment; 610. Foot rubber feeding mechanism; 620. Foot rubber installation robot; 630. Feeding platform.

[0040] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0042] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0043] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0044] In existing technologies, automation solutions are mostly "island-like" equipment, with poor coordination between assembly and testing. Testing stations often exist as independent, discrete units, requiring manual loading and unloading or simple conveyor belt connections, failing to deeply integrate with robots and intelligent logistics systems in upstream and downstream processes. This results in poor production line flexibility, making it difficult to quickly respond to the switching needs of co-production and testing of different models of juicers.

[0045] This invention proposes a fully automated assembly and testing line for juicers.

[0046] Please see Figures 1 to 9As shown, in one embodiment of the present invention, the fully automatic assembly and testing line for a juicer includes: a conveyor line 100, a transfer tray 200, a motor mounting plate loading device 300, a screw-locking device 400, a pressure testing device 500, and a foot mounting device 600. The conveyor line 100 is used to transport the juicer and includes a tray transfer line 110. The transfer tray 200 flows along the conveyor line 100 and includes a motor positioning component 210 for placing the motor, a button limiting block 220 for placing the buttons, a product support 230 for placing the product, and a bottom shell limiting block 240 for placing the bottom shell. The motor mounting plate loading device 300 is used to mount the motor mounting plate onto the motor located in the motor positioning component 210. The screw-locking device 400 is used to lock the motor mounting plate to the motor and to lock the motor mounting plate to the product. The pressure testing device 500 includes a pressure testing frame 510 and a top probe module 500 mounted on the frame. 20. Bottom probe module 530 and button striking module 540; top probe module 520 is used to test the screws of the bottom shell; button striking module 540 is used to strike to test the buttons of the product; bottom probe module 530 is used to test the motor output shaft of the product; the pressure test frame 510 is also provided with a pressure test receiving line and a pressure test lifting assembly 560; a tray transfer line 110 adapted to the pressure test equipment 500 transports the transfer tray 200 to the pressure test receiving line 550; the pressure test lifting assembly 560 is located on the outer periphery of the pressure test receiving line 550 and is used to lift the transfer tray 200 away from the pressure test receiving line 550; foot mounting device 600 is used to install the foot onto the bottom shell.

[0047] In practical implementation, the conveyor line 100 serves as the logistics backbone of the entire system, and includes a pallet transfer line 110 for continuously or intermittently conveying transfer pallets 200 carrying juicer components. The transfer pallet 200 is a multi-functional carrier, integrating a motor positioning component 210 for precise placement and fixation of the motor, a button limiting block 220 for button positioning, a product support base 230 for supporting the juicer body (i.e., the "product"), and a bottom shell limiting block 240 for positioning the bottom shell. Through this integrated carrier design, the core components of the juicer (motor, bottom shell, buttons, and product body) are integrated onto a standardized pallet, flowing with the conveyor line and providing a stable operating benchmark for subsequent automated processes.

[0048] refer to Figure 2As shown, it should be noted that the process flow in this embodiment begins with the transfer tray 200 loading the motor, bottom shell, buttons, and product body at the automated loading station. The tray transfer line 110 then sequentially transports the transfer tray 200 to each functional station. In the specific implementation process, the transfer tray 200 flows along the tray transfer line 110. Its overall shape is a rectangular plate structure, made of wear-resistant, high-strength engineering plastics or aluminum alloy materials. The motor positioning component 210 is used to place and position the juicer's motor. The motor positioning component 210 can be configured as a contoured groove adapted to the shape of the motor housing, with elastic positioning pins or magnetic structures inside the groove to ensure that the motor is placed stably and accurately on the tray. The button limiting block 220 is used to place and limit the button components of the juicer. The button limiting block 220 can be configured as a raised limiting post 135 or a limiting groove, adapted to the structure of the button, to prevent the button from shifting or falling off during the transfer process. The product support base 230 is used to place the entire juicer product. The product support base 230 can be configured as a contour support structure adapted to the shape of the bottom of the product to ensure the product remains stable during testing. The bottom shell limiting block 240 is used to place and limit the bottom shell component of the juicer. The bottom shell limiting block 240 can be configured as a positioning groove or positioning pin adapted to the shape of the bottom shell to ensure accurate positioning of the bottom shell during processes such as installing the feet.

[0049] The motor mounting plate feeding device 300 automatically installs the motor mounting plate into the predetermined position on the motor located on the motor positioning assembly 210. Specifically, the motor mounting plate feeding device 300 can arrange the motor mounting plates in a predetermined direction and transport them to the feeding position via a vibratory feeder; a material handling robot (which can be a pneumatic gripper or a vacuum suction cup) picks up the motor mounting plate from the feeding position of the vibratory feeder and, based on the motor position information collected by the vision positioning system, precisely places the motor mounting plate on top of the motor, aligning the mounting holes. A screw-locking device 400 is located downstream of the motor mounting plate feeding device 300 and is used to lock the motor mounting plate onto the motor and to lock the motor mounting plate onto the product (i.e., the juicer's entire housing). The screw-locking device 400 can employ an automatic screw feeder, a multi-axis screw-locking gun, and a displacement control mechanism. Specifically, the automatic screw feeder sequentially delivers screws to the nozzle or bit of the screwdriver; the multi-axis screwdriver can be configured as a dual-axis or four-axis structure according to process requirements, simultaneously tightening multiple screws; the displacement control mechanism drives the screwdriver to move along the X, Y, and Z axes, precisely positioning it to the tightening position and completing the tightening operation according to the preset torque. The screw tightening equipment 400 also has a torque monitoring module that records the tightening torque of each screw in real time and uploads the data to the production management system to achieve quality traceability.

[0050] After assembly, the transfer tray 200 is conveyed to the withstand voltage testing equipment 500, which integrates multiple testing functions. Electrical safety and functional reliability tests are automatically completed at this station. Products that pass the tests are then transferred to the foot mounting equipment 600, where the foot mounts are automatically installed onto the bottom shell, completing the final assembly. Multiple devices are connected in series via a unified conveyor line 100 and transfer tray 200, ensuring seamless integration of assembly and testing processes, significantly improving the continuity, automation, and overall efficiency of the production line.

[0051] refer to Figure 3 and Figure 4 As shown, in this embodiment, the withstand voltage testing equipment 500 includes a withstand voltage testing frame 510 and a top probe module 520, a bottom probe module 530, and a key press module 540 mounted thereon. The withstand voltage testing frame 510 also integrates a withstand voltage testing receiving line and a withstand voltage testing lifting assembly 560. A tray transfer line 110 (which may be a section or extension thereof) adapted to the withstand voltage testing equipment 500 transports the transfer tray 200 onto the withstand voltage testing receiving line. The withstand voltage testing lifting assembly 560 is located on the outer periphery of the withstand voltage testing receiving line and is used to lift the transfer tray 200 during testing, causing it to detach from the conveying surface of the withstand voltage testing receiving line, thereby fixing the transfer tray 200 in a stable state for testing. After the test is completed, the lifting assembly descends, and the transfer tray 200 falls back onto the receiving line to continue its transfer, realizing fully automatic loading and unloading and test execution at the testing station without manual intervention.

[0052] Specifically, the withstand voltage test frame 510 serves as the supporting structure for the testing equipment, employing aluminum alloy profiles or sheet metal welded structures to provide sufficient rigidity and stability. An internal control cabinet houses the withstand voltage tester, PLC controller, and other electrical components. The withstand voltage test receiving line is located inside the withstand voltage test frame 510, and can be a belt conveyor or roller conveyor, etc., which is not limited in this embodiment. The withstand voltage test receiving line is compatible with the pallet transfer line 110 of the conveyor line 100, forming a dedicated conveying section for the withstand voltage test station. When the transfer pallet 200 is conveyed to the withstand voltage test station along the pallet transfer line 110, it is guided onto the withstand voltage test receiving line. The withstand voltage test lifting assembly 560 is located on the outer periphery of the withstand voltage test receiving line, specifically on both sides of the withstand voltage test receiving line. The pressure test lifting assembly 560 includes a lifting cylinder and a lifting plate. When the transfer tray 200 is conveyed to a predetermined position on the pressure test receiving line, the lifting cylinder drives the lifting plate upwards, lifting the transfer tray 200 away from the pressure test receiving line, placing it in a suspended state. This avoids the impact of vibration on the conveyor line 100 on test accuracy and ensures product stability during testing.

[0053] The top probe module 520 is located at the upper part of the withstand voltage test frame 510 and includes multiple retractable probes and a drive cylinder. When the transfer tray 200 is lifted into position, the top probe module 520 descends under the action of the drive cylinder, bringing the probes into contact with the screws (i.e., the bottom shell fastening screws) on the bottom shell of the product under test. This is used to test the withstand voltage performance of the bottom shell screws and ensure reliable electrical grounding. The bottom probe module 530 is located at the lower part of the withstand voltage test frame 510 and includes probes corresponding to the position of the motor output shaft and a drive mechanism. When the transfer tray 200 is lifted into position, the bottom probe module 530 moves upward, bringing the probes into contact with the motor output shaft. This is used to test the withstand voltage performance and insulation resistance of the motor output shaft. The button striking module 540 is located in the middle or upper part of the withstand voltage test frame 510 and includes a striking cylinder 542, a striking head 543, and a force sensor. Once the transfer tray 200 is in position, the button striking module 540 extends its striking head 543 according to a preset program, striking the product's buttons (such as start buttons, gear buttons, etc.) with a set force and frequency to test the buttons' responsiveness and lifespan. The number of strikes, force, and button response signals are all monitored and recorded in real time. During the pressure resistance test, the top probe module 520, bottom probe module 530, and button striking module 540 work together to complete multiple tests simultaneously, significantly improving testing efficiency.

[0054] refer to Figure 1 As shown, the foot rubber mounting device 600 is located downstream of the pressure resistance testing device 500 and is used to automatically install the foot rubber onto the bottom of the base shell. The foot rubber mounting device 600 can be an automated assembly consisting of a foot rubber feeder, a robotic arm for picking up materials, and a pressing mechanism to achieve foot rubber installation. Specifically, the foot rubber feeder uses a vibratory feeder or a hopper to arrange the foot rubber in sequence and convey it to the loading position; the robotic arm for picking up materials grabs the foot rubber and places it into the mounting hole at the bottom of the base shell; the pressing mechanism uses a cylinder or servo motor to drive the pressing head downwards, pressing the foot rubber into the base shell to complete the final assembly.

[0055] In this embodiment, the transfer tray 200 is conveyed to the motor mounting plate loading device 300. After being positioned by the stopper, the picking robot removes the motor mounting plate from the vibratory feeder and precisely places it on the motor. The transfer tray 200 is then conveyed to the screw-locking device 400, which sequentially locks the motor mounting plate to the motor and the motor to the entire machine. The transfer tray 200 is then conveyed to the pressure testing device 500. After being guided into position by the pressure testing receiving line, the pressure testing lifting assembly 560 lifts the transfer tray 200 away from the receiving line. Subsequently, the top probe module 520, the bottom probe module 530, and the button striking module 540 operate sequentially or simultaneously to complete the bottom shell screw pressure test, the motor output shaft pressure test, and the button function test. After the test is completed, the lifting assembly descends, and the transfer tray 200 falls back onto the pressure testing receiving line, continuing to be conveyed downstream. The transfer pallet 200 is conveyed to the foot rubber installation equipment station 600. The picking robot grabs the foot rubber and places it in the bottom shell installation position. The pressing mechanism presses the foot rubber in and fixes it, completing the final assembly of the product.

[0056] In addition, the production line in this embodiment is also equipped with a central control system (not shown in the figure), which is connected to the PLC controllers of each piece of equipment and the conveyor line 100. The central control system is responsible for the overall coordination and scheduling, parameter distribution, status monitoring, and data acquisition of the entire line. Key data such as the torque data of the screw fastening device 400, the test values ​​of the pressure resistance testing device 500, and the number of button presses are all uploaded to the central control system in real time and associated with the identification code (such as an RFID tag or QR code) of the transfer tray 200 to achieve full-process quality traceability of individual products.

[0057] This invention's technical solution constructs a continuous automated production line by employing an integrated conveyor line 100, a transfer tray 200, a motor mounting plate loading device 300, a screw-locking device 400, and a foot mount installation device 600. The transfer tray 200 integrates a motor positioning component 210, a button limiting block 220, a product support base 230, and a bottom shell limiting block 240, enabling precise positioning and synchronous transfer of the juicer's core components. This eliminates the need for manual intervention throughout the entire process from component loading to assembly, testing, and accessory (foot mount) installation, significantly improving production efficiency and overall capacity compared to manual testing in traditional methods. For critical electrical safety testing, this invention integrates a fully automated withstand pressure testing device 500, whose top probe module 520, bottom probe module 530, and button striking module 540 can automatically and accurately perform withstand pressure tests on the base screws, motor output shaft, and product buttons, respectively. The process is completed automatically by the equipment, ensuring consistent probe contact position, pressure, and testing sequence. This eliminates random errors caused by manual operation, improves the accuracy of test data and the reliability of result judgment, and guarantees the safety and quality of products leaving the factory. The transfer tray 200 can move between assembly and testing stations, allowing the production line to flexibly adjust the process sequence. By replacing or adjusting the positioning components and testing fixtures on the transfer tray 200, it can adapt to the co-line production and testing needs of different models of juicers, enhancing the flexibility of the production line and market responsiveness.

[0058] refer to Figure 3 and Figure 4 As shown, in one embodiment, the pressure test lifting assembly 560 includes a first lifting cylinder 561 and a second lifting cylinder 562 that move synchronously. The first lifting cylinder 561 is connected to a first lifting plate 563. One end of the first lifting plate 563 is provided with a first positioning pin 564 adapted to the transfer tray 200, and the other end is provided with a conductive pin 565 adapted to the transfer tray 200. The second lifting cylinder 562 is connected to a second lifting plate 566. One end of the second lifting plate 566 is provided with a second positioning pin 567 adapted to the transfer tray 200. The first positioning pin 564 and the second positioning pin 567 are diagonally engaged with the transfer tray 200.

[0059] In this embodiment, both the first lifting cylinder 561 and the second lifting cylinder 562 are fixedly installed at the bottom or side of the pressure testing frame 510. They are controlled by the same air circuit or synchronously driven by a PLC controller to ensure consistent lifting actions. A first lifting plate 563 is fixedly connected to the piston rod end of the first lifting cylinder 561. The first lifting plate 563 is a long, strip-shaped plate extending along the width or length of the transfer tray 200. A first positioning pin 564 is provided at one end of the first lifting plate 563, and a conductive pin 565 is provided at the other end. The first positioning pin 564 protrudes vertically upward from the first lifting plate 563 and is conical or cylindrical in shape, with a guide chamfer at the top for engaging with the positioning hole (or positioning groove) at the bottom of the transfer tray 200 to achieve precise initial positioning. A conductive pin 565 protrudes vertically upward from the first lifting plate 563. It is made of highly conductive copper alloy or stainless steel, and its surface can be plated with gold or silver to reduce contact resistance. The conductive pin 565 is used to make electrical contact with the conductive contacts (or metal pads) at the bottom of the transfer tray 200, providing a grounding loop or test signal path during the withstand voltage test. The conductive pin 565 is electrically connected to the grounding or test terminal of the withstand voltage tester via a wire. The electrical connection is automatically completed upon lifting into position, eliminating the need for additional probes or wiring operations, simplifying the structure of the test station, and improving test efficiency and reliability. A second lifting plate 566 is fixedly connected to the piston rod end of the second lifting cylinder 562. The structure of the second lifting plate 566 is similar to that of the first lifting plate 563, with a second positioning pin 567 at one end. The structure of the second positioning pin 567 is the same as that of the first positioning pin 564, protruding vertically upward from the second lifting plate 566, and is used to mate with another positioning hole at the bottom of the transfer tray 200.

[0060] The first positioning pin 564 and the second positioning pin 567 are diagonally distributed in space, corresponding to two positioning holes on the diagonal lines of the bottom of the transfer tray 200. Specifically, when the transfer tray 200 is transported to a predetermined position on the pressure test receiving body, the first lifting cylinder 561 and the second lifting cylinder 562 lift synchronously, and the first positioning pin 564 and the second positioning pin 567 are respectively inserted into the two positioning holes at the diagonal positions of the bottom of the transfer tray 200, achieving precise positioning and attitude correction of the transfer tray 200. The diagonal positioning method can effectively constrain the translational and rotational degrees of freedom of the transfer tray 200 in the plane, ensuring the stability of its position after being lifted.

[0061] The transfer tray 200 is conveyed to the test station along the withstand voltage test receiving line and positioned by a stopper. The first lifting cylinder 561 and the second lifting cylinder 562 extend synchronously, driving the first lifting plate 563 and the second lifting plate 566 upwards. The first positioning pin 564 and the second positioning pin 567 are respectively inserted into the diagonal positioning holes at the bottom of the transfer tray 200, guiding the transfer tray 200 into precise position and correcting its posture. The first lifting plate 563 and the second lifting plate 566 continue to rise, completely lifting the transfer tray 200 away from the withstand voltage test receiving line, placing it in a stable suspended state. At this time, the conductive pin 565 reliably contacts the conductive contacts at the bottom of the transfer tray 200, establishing an electrical connection. The top probe module 520, the bottom probe module 530, and the button-operated module 540 operate sequentially to complete each test. The conductive pin 565 provides a stable grounding loop during this process, ensuring the accuracy and safety of the test signal. After the test is completed, the first lifting cylinder 561 and the second lifting cylinder 562 retract synchronously, and the transfer tray 200 descends back onto the pressure test receiving line body to continue conveying downstream.

[0062] In one embodiment, the top probe module 520 includes a top probe cylinder 521 and a top probe plate 522 connected thereto, the top probe plate 522 being provided with a screw probe 523; the bottom probe module 530 includes a bottom probe cylinder and a bottom probe plate connected thereto, the bottom probe plate being provided with a shaft probe 531; the button striking module 540 includes a striking mounting plate 541 and a striking cylinder 542 disposed on the striking mounting plate 541, the striking cylinder 542 being connected with a striking head 543, the striking head 543 being used to strike the button of the product.

[0063] In the specific implementation process, the top probe cylinder 521 is fixedly installed on the upper crossbeam of the withstand voltage test frame 510, with its piston rod extending vertically downwards. The top probe plate 522 is fixedly connected to the end of the piston rod of the top probe cylinder 521, and has a long strip-shaped plate structure, made of engineering plastics with good insulation properties (such as POM or PEEK). Multiple screw probes 523 are arranged on the lower surface of the top probe plate 522, and the number and position of the screw probes 523 correspond one-to-one with the screw positions on the bottom shell of the product under test. Each screw probe 523 adopts an elastic telescopic structure (such as a spring probe), with an internal spring, allowing it to self-compress upon contact with the screw being tested, ensuring reliable electrical contact with the screw head, while avoiding damage to the screw or bottom shell due to rigid contact. The screw probes 523 are electrically connected to the high-voltage output terminal or detection terminal of the withstand voltage tester via wires, and are used to apply test voltage to the bottom shell screws and detect insulation performance. Once the transfer tray 200 is lifted into position, the top detection cylinder 521 drives the top detection plate 522 to move downward, causing each screw probe 523 to contact the corresponding bottom shell screw, thus completing the pressure resistance test.

[0064] The bottom probe cylinder is fixedly mounted on the lower base of the withstand voltage tester frame 510, with its piston rod extending vertically upwards. The bottom probe plate, also made of insulating material, is fixedly connected to the end of the piston rod of the bottom probe cylinder. The upper surface of the bottom probe plate is equipped with shaft probes 531, the number and position of which correspond to the position of the motor output shaft of the product under test; typically, there is one or multiple probes. The shaft probes 531 also employ an elastic telescopic structure, with grooves or conical surfaces at their tips to form stable contact with the end of the motor output shaft. The shaft probes 531 are electrically connected to the testing end of the withstand voltage tester via wires, used to test the withstand voltage performance and insulation resistance of the motor output shaft. When the transfer tray 200 is lifted into position, the bottom probe cylinder drives the bottom probe plate upwards, causing the shaft probes 531 to contact the motor output shaft, thus completing the complete electrical circuit test in conjunction with the top probe module 520. The impact mounting plate 541 is fixedly mounted on the middle or upper crossbeam of the withstand voltage testing frame 510, and its position can be adjusted according to the button position of the product under test. Multiple mounting positions can be provided on the impact mounting plate 541 to accommodate variations in button positions for different product models. The impact cylinder 542 is fixedly mounted on the impact mounting plate 541, with its piston rod extending towards the button position on the product. An impact head 543 is connected to the end of the piston rod of the impact cylinder 542. The impact head 543 is made of a flexible material (such as silicone or polyurethane) to avoid scratching or damaging the button surface during impact. The shape of the impact head 543 is adapted to the button surface and can be hemispherical or flat-headed. The impact cylinder 542 is controlled by a solenoid valve and can perform reciprocating impact actions according to preset force, frequency, and number of strikes. Driven by the impact cylinder 542, the impact head 543 extends and strikes the product's buttons (such as start buttons, gear buttons, function selection buttons, etc.) to test the button's responsiveness, contact reliability, and service life. During the attack, the control system monitors the response signals of the buttons in real time (such as on / off signals or voltage changes) to determine whether the button functions are normal.

[0065] refer to Figure 3 As shown, in the specific implementation process, it should be noted that the pressure resistance testing equipment 500 has multiple testing stations, each of which performs screw testing, button impact testing, and motor output shaft testing. Specifically, the pressure resistance testing frame 510 is arranged with multiple testing stations sequentially along the conveying direction, for example, it can be set to two, three, or four testing stations, the specific number of which is determined according to the production cycle requirements and production line layout. Each testing station is equipped with an independent top probe module 520, bottom probe module 530, and button impact module 540, and each testing station is correspondingly equipped with a set of pressure resistance testing lifting components 560. Each testing station has an independently installed pressure resistance testing lifting component 560 on its outer periphery. The lifting components of each station are independently controlled and do not interfere with each other. They can perform lifting and lowering actions independently according to the testing progress of that station.

[0066] Multiple transfer trays 200 are sequentially conveyed along the conveyor line 100. When the first transfer tray 200 arrives at the first testing station, it is blocked and positioned by the stopper at that station. The pressure resistance test lifting assembly 560 at the first testing station then lifts it, and the test begins. Simultaneously, the second transfer tray 200 continues forward to the second testing station. After being blocked and positioned by the stopper at the second testing station, it is lifted by the lifting assembly at the second testing station, and the probe modules and impact modules at that station begin testing. This process continues, allowing multiple testing stations to perform tests simultaneously, enabling parallel testing of the products. After each testing station completes its test, the lifting assembly descends, the transfer tray 200 falls back onto the pressure resistance test receiving line, the stopper releases, and each transfer tray 200 is sequentially conveyed downstream. By setting up multiple testing stations, each station independently completes a full test, significantly improving testing efficiency and thus increasing the overall capacity of the production line. The multi-station configuration allows for the temporary shutdown of a test station if a fault occurs, while other stations can continue operating without requiring the entire production line to be shut down, thus improving the availability and stability of the production line.

[0067] refer to Figure 5 As shown, in one embodiment, the motor mounting plate loading device includes a tray mechanism 310 and a motor mounting plate transfer robot 320. The motor mounting plate transfer robot 320 picks up the motor mounting plate from the tray mechanism 310 and transfers it to the motor of the transfer tray 200. The tray mechanism 310 includes a tray transfer line 311, which has a loading position, a positioning position, and a unloading position. The tray transfer line 311 transports the tray through the loading position, the positioning position, and the unloading position in sequence.

[0068] In practical implementation, the material trays are standard-sized blister trays or injection-molded trays, with multiple receiving slots adapted to the shape of the motor mounting plates, accommodating multiple motor mounting plates simultaneously for batch feeding. At the loading position, the material tray mechanism 310 has a tray-splitting mechanism, specifically using two opposing telescopic support cylinder mechanisms and a lifting mechanism. The cylinder mechanisms support the second-to-last tray from the bottom and all trays above it, while the lifting mechanism lowers the bottom tray onto the material tray transfer line 311 for further transport to the positioning position. The material tray transfer line 311 uses a double-speed chain, belt conveyor, or roller conveyor, extending horizontally to transport trays sequentially through the loading, positioning, and unloading positions. The loading position is located at the beginning of the material tray transfer line 311, allowing operators or automated loading robots to place fully loaded trays onto the line. A tray detection sensor (such as a photoelectric sensor) can be installed at the loading position to detect whether the tray is placed in place and send a signal to start the conveyor. The positioning position is located in the middle of the tray transfer line 311, between the loading and unloading positions. The positioning position is equipped with a tray stopper, a positioning cylinder, and a lifting mechanism. When the tray is conveyed to the positioning position, the stopper blocks it, the positioning cylinder pushes the tray from the side or front and back to position it accurately, and the lifting mechanism can lift the tray away from the conveyor line 100 to eliminate the influence of the conveyor line 100 vibration on the picking accuracy. The positioning position is the picking station of the motor mounting plate transfer robot 320, from which the robot accurately grasps the motor mounting plate. The unloading position is located at the end of the tray transfer line 311 to collect the empty tray. Once all the motor mounting plates in the tray at the positioning position have been removed, the tray transfer line 311 transports the empty tray to the unloading position. At the unloading position, there is a tray stacking mechanism 310 that stacks the trays to a certain height so that the operator or the automatic unloading mechanism can remove them, thus completing the unloading and recycling of the trays.

[0069] The motor mounting plate transfer robot 320 is positioned beside the tray mechanism 310, and its working range covers the corresponding workstations of the positioning position and the transfer tray 200 on the conveyor line 100. The motor mounting plate transfer robot 320 employs a multi-axis articulated robot or a gantry-type Cartesian coordinate robot, possessing X, Y, and Z degrees of freedom for movement, and can be supplemented with rotational degrees of freedom to accommodate installation requirements at different angles. Furthermore, the end effector of the motor mounting plate transfer robot 320 uses a pneumatic gripper or vacuum suction cup to pick up the motor mounting plate located at the positioning position on the tray mechanism 310. The structure of the gripper or suction cup is adapted to the shape of the motor mounting plate, ensuring stable gripping without damaging the workpiece surface. The robot can be equipped with a vision positioning system (such as a CCD camera) to photograph and identify the position of the motor mounting plate before picking it up, compensating for tray positioning errors and improving picking accuracy.

[0070] refer to Figure 6 As shown, in one embodiment, the conveyor line 100 is further provided with a line lifting device 120, which includes a line tray lifting cylinder 121 and a line tray lifting frame 122. The line tray lifting cylinder 121 drives the line tray lifting frame 122 to lift and lower the transfer tray 200.

[0071] Specifically, the line pallet lifting cylinder 121 is fixedly installed at the bottom of the frame of the conveyor line 100, with its piston rod extending vertically upwards. The line pallet lifting cylinder 121 can be configured as a single cylinder or a double cylinder, with the appropriate cylinder diameter and number selected based on the size and weight of the transfer pallet 200 to ensure a smooth lifting process. The line pallet lifting frame 122 is fixedly connected to the end of the piston rod of the line pallet lifting cylinder 121, and has a frame or plate structure. The upper surface of the lifting frame is provided with positioning pins or positioning blocks that match the bottom of the transfer pallet 200, used to guide the pallet into precise position during the lifting process. The dimensions of the lifting frame match the transfer pallet 200 to ensure that the pallet is subjected to uniform force and maintains a stable posture after lifting.

[0072] When the transfer pallet 200 is conveyed along the pallet transfer line 110 to the station equipped with the line lifting device 120, a stopper blocks and positions it. Subsequently, the line pallet lifting cylinder 121 extends, driving the line pallet lifting frame 122 to move upwards, lifting the transfer pallet 200 away from the pallet transfer line 110 and suspending it in place. At this time, the working equipment at this station (such as the screw-locking device 400 or the foot-mounting device 600) can perform precision processing or testing on the product. After the operation is completed, the line pallet lifting cylinder 121 retracts, and the transfer pallet 200 descends back onto the pallet transfer line 110 to continue being conveyed downstream.

[0073] refer to Figure 7 As shown, the conveyor line 100 is also provided with a steering device 130. The steering device 130 includes a steering bracket 131, a steering lifting cylinder 132 and a steering motor 133. The steering lifting cylinder 132 is connected to the steering bracket 131. The steering bracket 131 is connected to a steering wheel 134. The steering wheel 134 is provided with a limit post 135 and is adapted to the transfer tray 200. The steering motor 133 is located on the steering bracket 131 and drives the steering wheel 134 to rotate.

[0074] The steering device 130 is located at the turning point of the conveyor line 100 or at workstations where the product conveying direction needs to be changed. It is used to achieve 90°, 180°, or other angle turns of the transfer pallet 200 to adapt to the needs of the production line layout and process flow. In specific implementation, the steering bracket 131 serves as the support frame for the steering device 130 and is fixedly installed on the frame of the conveyor line 100. The steering bracket 131 is made of welded or cast profiles, possessing sufficient rigidity and stability. The steering lifting cylinder 132 is fixedly installed on the steering bracket 131, with its piston rod extending vertically upwards. The steering lifting cylinder 132 drives the steering wheel 134 to rise and fall, lifting the transfer pallet 200 away from the pallet transfer line 110, and lowering it back onto the conveyor line 100 after the turn is completed. The steering motor 133 is fixedly installed on the steering bracket 131, and its output shaft is driven by the steering wheel 134 through a transmission mechanism (such as gear transmission, synchronous belt transmission, or direct connection). The steering motor 133 is preferably a servo motor, which can precisely control the rotation angle and speed to meet different steering requirements. The steering wheel 134 is connected to the piston rod end of the steering lifting cylinder 132 and is driven to rotate by the steering motor 133. The steering wheel 134 has a disc-shaped or rectangular plate-shaped structure, and its upper surface is provided with multiple limit posts 135. The limit posts 135 are vertically protruding upward on the upper surface of the steering wheel 134, and their number and position are adapted to the positioning holes at the bottom of the transfer tray 200. Usually, two or four limit posts 135 are provided, symmetrically distributed, to ensure that the transfer tray 200 and the steering wheel 134 rotate synchronously without relative displacement during steering.

[0075] When the transfer pallet 200 is conveyed along the pallet transfer line 110 to the position of the steering device 130, the stopper blocks and positions it. Then, the steering lifting cylinder 132 extends, driving the steering wheel 134 upwards, causing the limiting post 135 to insert into the positioning hole at the bottom of the transfer pallet 200, and lifting the transfer pallet 200 away from the pallet transfer line 110. Next, the steering motor 133 starts, driving the steering wheel 134 to rotate by a preset angle (e.g., 90° or 180°), and the transfer pallet 200 rotates synchronously with the steering wheel 134. After the steering is completed, the steering lifting cylinder 132 retracts, the steering wheel 134 descends, the transfer pallet 200 falls back onto the pallet transfer line 110, the limiting post 135 disengages from the positioning hole, and the pallet continues to be conveyed downstream in the new direction. The steering motor 133 resets in the reverse direction after the steering wheel 134 descends, preparing for the next steering action. By setting the steering device 130, the transfer pallet 200 can automatically turn during the conveying process, allowing the production line to flexibly adjust the conveying direction according to the workshop layout, avoiding the drawbacks of traditional production lines that require manual handling or complex turning conveyor lines.

[0076] refer to Figure 1 and Figure 8As shown, in one embodiment, the conveyor line 100 includes a first line 140 and a second line 150, and a transfer mechanism 160 is provided between the two. The transfer mechanism 160 includes a transfer motor, a transfer turntable 161, and a transfer line 162. The transfer motor is connected to the transfer turntable 161 and drives the transfer turntable 161 to rotate. The transfer line 162 is disposed on the transfer turntable 161. The rotation of the transfer turntable 161 causes the transfer line 162 to engage with the first line 140 or the second line 150.

[0077] In this embodiment, the conveyor line 100 includes a first line 140 and a second line 150. These two lines can be arranged in parallel, perpendicular, or at a certain angle to adapt to the site conditions and process requirements of the production workshop. The first line 140 and the second line 150 are connected by a transfer mechanism 160 to achieve automatic material transfer and flow direction switching, enabling the production line to be flexibly expanded or diverted to meet the needs of complex process routes. The first line 140 and the second line 150 operate independently, each undertaking different production processes. For example, the first line 140 can be used for juicer assembly and testing processes (such as motor mounting plate loading, screw tightening, pressure testing, etc.), while the second line 150 can be used for post-processing processes (such as foot rubber installation, etc.). The line length and number of workstations can be flexibly configured according to capacity requirements. The transfer mechanism 160 is located between the first line 140 and the second line 150 to transfer the transfer tray 200 from the first line 140 to the second line 150, or to achieve bidirectional transfer as needed.

[0078] Specifically, the adapter motor is fixedly mounted on the base of the adapter mechanism 160, and its output shaft is driven and connected to the adapter turntable 161. The adapter motor is preferably a servo motor, which can precisely control the rotation angle and speed of the adapter turntable 161 to achieve precise docking with the first line 140 and the second line 150. The adapter turntable 161 has a disc-shaped or rectangular plate-shaped structure and is driven by the adapter motor to rotate around its central axis. An adapter cable 162 is fixedly mounted on the adapter turntable 161, and the adapter cable 162 rotates synchronously with the adapter turntable 161. The adapter cable 162 is located on the upper surface of the adapter turntable 161, and its structure is adapted to the tray conveyor line 110. It can be conveyed by a double-speed chain, belt conveyor, or roller conveyor. The conveying direction of the adapter cable 162 is perpendicular to the radial direction of the adapter turntable 161, that is, the adapter cable 162 is arranged along the tangential direction of the adapter turntable 161. The adapter cable 162 is equipped with a conveying mechanism for transporting the transfer tray 200, and features a stopper, positioning sensor, and drive motor to ensure the transfer tray 200 can smoothly enter and exit the adapter cable 162. The adapter motor drives the adapter turntable 161 to rotate, allowing both ends of the adapter cable 162 to connect with either the first line 140 or the second line 150. By setting up the first line 140 and the second line 150, and configuring the adapter mechanism 160 between them, the spatial layout can be optimized. Specifically, the production line can be flexibly arranged in an L-shape, U-shape, or parallel layout according to the actual workshop conditions, avoiding the high spatial requirements of traditional linear production lines and improving space utilization. Assembly and testing processes can also be set up on different lines, facilitating zoned management and maintenance. Simultaneously, the line speed can be independently adjusted according to the capacity requirements of each section to achieve production balance. Multi-directional docking and diversion are supported, providing convenient conditions for subsequent production line expansion and enabling modular expansion capabilities.

[0079] refer to Figure 9 As shown, in one embodiment, the foot rubber installation device 600 includes a foot rubber feeding mechanism 610, a foot rubber installation robot 620, and a loading platform 630. The foot rubber feeding mechanism 610 conveys foot rubber to the loading platform 630, and the foot rubber installation robot 620 picks up the foot rubber from the loading platform 630 and installs it onto the bottom shell.

[0080] In practical implementation, the foot rubber feeding mechanism 610 can adopt a vibratory feeder, specifically including a vibratory feeder body and a linear feeder. The vibratory feeder body uses vibration to arrange the randomly piled foot rubbers in an orderly manner according to a preset direction and transports them to the discharge port along a spiral track; the linear feeder transports the foot rubbers from the vibratory feeder discharge port to the loading platform 630. The inner wall of the vibratory feeder can be coated with Teflon or have an anti-adhesion structure to reduce the adhesion between the foot rubbers. The loading platform 630 is located between the discharge end of the foot rubber feeding mechanism 610 and the working range of the foot rubber installation robot 620, serving as a temporary storage and precise positioning platform for the foot rubbers. The foot rubber installation robot 620 is located between the loading platform 630 and the corresponding station of the transfer tray 200 on the conveyor line 100, used to pick up the foot rubbers from the loading platform 630 and install them onto the bottom of the juicer's casing. The foot rubber mounting robot 620 employs a multi-axis articulated robot or a gantry-type Cartesian coordinate robot, possessing degrees of freedom in the X, Y, and Z directions. The robot's end effector utilizes a pneumatic gripper or vacuum suction cup, adapted to the structure of the foot rubber. The foot rubber mounting robot 620 is also equipped with a vision positioning system (such as a CCD camera) to photograph and identify the position of the foot rubber on the loading platform 630 before picking it up, compensating for positioning errors; and to photograph and identify the position of the bottom shell on the transfer tray 200 before installation, ensuring accurate alignment and installation of the foot rubber.

[0081] In one embodiment, the motor positioning assembly 210 includes a motor mounting base 211, a first motor limiting clamp 212, and a second motor limiting clamp 213. The motor mounting base 211 is provided with a motor positioning hole, one end of the motor is disposed in the motor positioning hole, and the other end is accommodated in the space enclosed by the second motor limiting clamp 213. The first motor limiting clamp 212 is arranged on both sides of the motor.

[0082] In this embodiment, the motor mounting base 211 is fixedly installed on the upper surface of the transfer tray 200. It is made of metal or high-strength engineering plastic and has sufficient structural strength to withstand the weight of the motor and the locking torque during installation. A motor positioning hole is provided on the motor mounting base 211. The diameter of the motor positioning hole is adapted to the outer diameter of one end of the motor, forming a shaft-hole mating structure. A first motor limiting clamp 212 surrounds both sides of the motor, that is, it is symmetrically arranged on the left and right sides of the motor along its circumference. The first motor limiting clamp 212 can be set as two independent limiting blocks or an integrally formed U-shaped clamp structure. The inner surface of the first motor limiting clamp 212 is adapted to the shape of the motor housing, forming a contour-following limiting surface, used to constrain the radial displacement of the motor in the horizontal direction. The second motor limiting clamp 213 has an annular or C-shaped structure, and its interior forms a receiving space for accommodating the other end of the motor (i.e., the end away from the motor mounting base 211). The inner diameter of the second motor limiting clamp 213 is adapted to the outer diameter of the motor at that end, forming a clearance fit or transition fit. Understandably, the motor positioning hole of the motor mounting base 211 provides precise positioning for the shaft-hole fit. The first motor limiting clamp 212 and the second motor limiting clamp 213 constrain the motor from multiple directions, forming a stable positioning reference. This ensures the motor's precise position and stable posture during rotation and screw tightening, improving the assembly accuracy of subsequent processes.

[0083] refer to Figure 1 As shown, in one embodiment, the fully automatic assembly and testing line for juicers also includes an NG line 170, which is equipped with an NG receiving conveyor line. The NG receiving conveyor line is adapted to the tray transfer line 110 and receives the transfer tray 200 containing NG products conveyed by the tray transfer line 110.

[0084] In practical implementation, the NG line 170 is located beside the conveyor line 100, downstream of the testing station (such as the pressure testing equipment 500) or at the discharge end of other key testing stations. The NG line 170 includes an NG receiving conveyor line, which is structurally compatible with the main line's pallet transfer line 110 to ensure that the transfer pallet 200 can be smoothly and steadily transferred from the main line to the NG line 170. The NG receiving conveyor line can use a double-speed chain, belt conveyor, or roller conveyor, and its conveying width, height, and conveying speed are matched with the pallet transfer line 110. A receiving transition structure, such as a guide plate, roller bridge, or movable flap, is provided between the inlet end of the NG receiving conveyor line and the pallet transfer line 110 to ensure that the transfer pallet 200 does not jam or tip over during transfer. It should be noted that a lifting and shifting mechanism is provided at the junction of the pallet transfer line 110 and the NG receiving conveyor line. When an NG product is detected, the lifting and translating mechanism lifts the transfer pallet 200 away from the pallet transfer line 110, then translates it laterally to above the NG receiving conveyor line, and then lowers it to place the pallet on the NG receiving conveyor line.

[0085] The NG line 170 can automatically separate defective products from the main conveyor line 100, preventing defective products from mixing with qualified products and flowing into subsequent processes or leaving the factory, effectively ensuring product quality. Automated sorting replaces manual screening and handling, reducing the workload of operators, while avoiding production line stoppages caused by manual intervention and improving the continuous operation efficiency of the production line.

[0086] The above description is merely an exemplary embodiment of the present invention and does not limit the scope of protection of the present invention. Any equivalent structural transformations made based on the inventive concept of the present invention and the contents of the specification and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present invention.

Claims

1. A fully automatic assembly test line for fruit juice machines, characterized in that, include: A conveyor line for conveying juicers, the conveyor line being equipped with a tray transfer line; The transfer tray flows along the conveyor line. The transfer tray is provided with a motor positioning component for placing the motor, a button limiting block for placing the button, a product support for placing the product, and a bottom shell limiting block for placing the bottom shell. A motor mounting plate loading device is used to mount a motor mounting plate onto a motor located in the motor positioning assembly; A screw-locking device for fastening the motor mounting plate to the motor and for mounting the motor to the product; A pressure resistance testing device includes a pressure resistance testing frame and a top probe module, a bottom probe module, and a button striking module disposed on the frame. The top probe module is used to test the screws of the bottom shell, the button striking module is used to strike the buttons of the product to test them, and the bottom probe module is used to test the motor output shaft of the product. The pressure resistance testing frame also includes a pressure resistance testing receiving line and a pressure resistance testing lifting assembly. A tray transfer line adapted to the pressure resistance testing device transports the transfer tray to the pressure resistance testing receiving line. The pressure resistance testing lifting assembly is disposed on the outer periphery of the pressure resistance testing receiving line and is used to lift the transfer tray away from the pressure resistance testing receiving line. Foot rubber installation equipment for installing foot rubber onto the bottom shell.

2. The fully automatic assembling test line for a juicer according to claim 1, wherein The pressure resistance test lifting assembly includes a first lifting cylinder and a second lifting cylinder that move synchronously. The first lifting cylinder is connected to a first lifting plate. One end of the first lifting plate is provided with a first positioning pin adapted to the transfer tray, and the other end is provided with a conductive pin adapted to the transfer tray. The second lifting cylinder is connected to a second lifting plate. One end of the second lifting plate is provided with a second positioning pin adapted to the transfer tray. The first positioning pin and the second positioning pin are diagonally engaged with the transfer tray.

3. The fully automatic assembly test line for a juicer according to claim 2, wherein The top probe module includes a top probe cylinder and a top probe plate connected thereto, the top probe plate being provided with screw probes; the bottom probe module includes a bottom probe cylinder and a bottom probe plate connected thereto, the bottom probe plate being provided with shaft probes; the button striking module includes a striking mounting plate and a striking cylinder mounted on the striking mounting plate, the striking cylinder being connected to a striking head, the striking head being used to strike the buttons of the product.

4. The fully automatic assembling and testing line of the juicer according to claim 1, wherein The pressure resistance testing equipment is equipped with multiple testing stations, each of which performs screw testing, button impact testing, and motor output shaft testing.

5. The fully automatic assembly test line for a juicer according to claim 1, wherein The motor mounting plate loading device includes a tray mechanism and a motor mounting plate transfer robot. The motor mounting plate transfer robot picks up the motor mounting plate of the tray mechanism and transfers it to the motor of the transfer tray. The tray mechanism includes a tray transfer line with a loading position, a positioning position, and a unloading position. The tray transfer line transports the tray through the loading position, the positioning position, and the unloading position in sequence.

6. The fully automatic assembly test line for a juicer according to claim 1, wherein The conveyor line is also equipped with a line lifting device, which includes a line tray lifting cylinder and a line tray lifting frame. The line tray lifting cylinder drives the line tray lifting frame to lift and lower the transfer tray; and / or, The conveyor line is also equipped with a steering device, which includes a steering bracket, a steering lifting cylinder and a steering motor. The steering lifting cylinder is connected to the steering bracket, the steering bracket is connected to a steering wheel, the steering wheel is provided with a limit post and is adapted to the transfer tray, and the steering motor is located on the steering bracket and drives the steering wheel to rotate.

7. The fully automatic assembly and testing line for juicers as described in claim 1, characterized in that, The conveyor line includes a first line and a second line, and a transfer mechanism is provided between the two. The transfer mechanism includes a transfer motor, a transfer turntable, and a transfer wire. The transfer motor is connected to the transfer turntable and drives the transfer turntable to rotate. The transfer wire is disposed on the transfer turntable. The rotation of the transfer turntable causes the transfer wire to connect to the first line or the second line.

8. The fully automatic assembly and testing line for juicers as described in claim 1, characterized in that, The foot rubber installation equipment includes a foot rubber feeding mechanism, a foot rubber installation robot, and a feeding platform. The foot rubber feeding mechanism delivers foot rubber to the feeding platform, and the foot rubber installation robot picks up the foot rubber from the feeding platform and installs it onto the bottom shell.

9. The fully automatic assembly and testing line for juicers as described in claim 1, characterized in that, The motor positioning assembly includes a motor mounting base, a first motor limiting clamp, and a second motor limiting clamp. The motor mounting base has a motor positioning hole. One end of the motor is located in the motor positioning hole, and the other end is accommodated in the space enclosed by the second motor limiting clamp. The first motor limiting clamp is arranged around both sides of the motor.

10. The fully automatic assembly and testing line for juicers as described in claim 1, characterized in that, The fully automatic assembly and testing line for the juicer also includes an NG line, which is equipped with an NG receiving conveyor line. The NG receiving conveyor line is adapted to the tray transfer line and receives the transfer trays containing NG products conveyed by the tray transfer line.

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