A double-station automatic pin feeding and pressing machine

Abstract

This application relates to a double-station automatic pin feeding and pressing machine, including: a machine table, a press, and a pin feeding machine. A pressing head mechanism is provided at the output end of the press, and a placing tooling mechanism is provided on the machine table. The placing tooling mechanism moves actively to the lower side of the pressing head mechanism, and the press drives the pressing head mechanism to move downward to actively contact the placing tooling mechanism. The pressing head mechanism includes: a pressing head seat, a pressing head ejector rod, and a receiving nozzle module. The pin feeding machine sends the pin to the receiving nozzle module, and the pressing head ejector rod presses the pin from the receiving nozzle module into the pin hole of the drive shaft placed on the placing tooling mechanism. In the solution provided by the embodiment of this application, the pin feeding machine sends the pin to the receiving nozzle module, and the press drives the pressing head mechanism to move downward, so that the pin is pressed into the pin hole of the drive shaft placed on the placing tooling mechanism through the pressing head ejector rod, realizing the automatic assembly of the drive shaft and the pin, reducing the manual participation in the assembly process, and improving the degree of automatic assembly.

Description

Technical Field

[0001] This application relates to the technical field of automated production and processing, and particularly to a double-station automated pin feeding and pressing machine. Background Art

[0002] During the assembly and processing of a drive shaft, it is generally necessary to install a pin in the pin hole of the drive shaft to facilitate the transmission of lateral force or torque through the pin, enabling the drive shaft to effectively transmit power to other components and effectively realizing the power transmission of the mechanical system. In the prior art, the operation method of manually placing the pin is generally adopted, and then the pin is pressed into the pin hole of the drive shaft manually or by a pressing device to complete the assembly of the pin. However, the production efficiency of this assembly method is low, and the labor cost is high, which is not suitable for the requirements of automated production operations. For the method of feeding materials through automated equipment in the prior art and pressing the pin into the pin hole of the transmission shaft, however, this method can generally only assemble a set of drive shafts and pins, with low efficiency and is also difficult to meet the requirements of automated production operations. Summary of the Invention

[0003] This application provides a double-station automated pin feeding and pressing machine to solve the problems of low assembly efficiency and unstable assembly effect for the pins on the drive shaft in the prior art.

[0004] This application provides a double-station automated pin feeding and pressing machine, including: a machine table, a press disposed on the machine table, and a pin feeding machine disposed beside the machine table. A pressing head mechanism is disposed at the output end of the press. A placement tooling mechanism is disposed on the machine table. The placement tooling mechanism moves actively below the pressing head mechanism. The press drives the pressing head mechanism to move downward to actively contact the placement tooling mechanism. The pressing head mechanism includes: a pressing head seat, a pressing head ejector rod disposed on the pressing head seat, and a receiving nozzle module disposed at the front end of the pressing head ejector rod. The pin feeding machine sends the pin to the receiving nozzle module, and the pressing head ejector rod presses the pin from the receiving nozzle module into the pin hole of the drive shaft placed on the placement tooling mechanism.

[0005] Further, the receiving nozzle module includes: a receiving nozzle support plate disposed at the output end of the press, a receiving nozzle disposed on the receiving nozzle support plate, a stop cavity disposed on the bottom surface of the receiving nozzle support plate, a stop cylinder disposed beside the stop cavity, and a stop piston connected to the output end of the stop cylinder. The receiving nozzle support plate and the stop cavity are provided with ejection through holes corresponding to the position of the pressing head ejector rod. The receiving nozzle is connected to the pin feeding machine through a hose. The connection line between the central hole of the receiving nozzle and the ejection through hole is parallel to the direction in which the stop cylinder drives the stop piston to move. The stop cylinder drives the stop piston to move between the receiving nozzle and the ejection through hole.

[0006] Further, a stop through hole is provided on the stop piston corresponding to the receiving nozzle and the ejection through hole, and the stop cylinder drives the stop piston to move to the two extreme positions at both ends so that the stop through hole is respectively located at positions corresponding to the receiving nozzle and the ejection through hole.

[0007] Further, the stop cavity includes: two stop seats provided on the bottom surface of the receiving nozzle support plate, and a stop baffle mounted on the bottom surfaces of the two stop seats on both sides. The stop baffle is provided with an ejection through hole corresponding to the position of the pressing head rod, and the stop piston moves within the interval surrounded by the stop seat and the stop baffle.

[0008] Further, a pin detection sensor is provided on one side or both sides of the stop seat corresponding to the position of the receiving nozzle. Detection holes are provided on the stop seat and the stop piston corresponding to the output end of the pin detection sensor, and the detection holes penetrate through the stop through hole.

[0009] Further, a plurality of guide rods are provided on the bottom surface of the pressing head seat. A plurality of guide sleeves are provided on the receiving nozzle module corresponding to the guide rods. The guide sleeves penetrate through the receiving nozzle module, the guide rods penetrate through the guide sleeves, a buffer spring is sleeved on the guide rods, and the buffer spring is provided between the guide sleeve and the pressing head seat;

[0010] A buffer block is provided on the bottom surface of the guide rod.

[0011] Further, a pressure sensor is provided on the pressing head seat. The top of the pressing head rod is connected to the pressure sensor. During the process of the pressing head rod pushing the pin into the pin hole of the drive shaft, the pressure sensor detects the mutual pressure between the pressing head rod and the pin and transmits the detection data back to the control system.

[0012] Further, the placement tooling mechanism includes: a servo slide table provided on the machine table, and a positioning tooling provided on the servo slide table. The servo slide table drives the positioning tooling to move reciprocally.

[0013] Further, a code scanning module is provided on the machine table. A code scanning label is attached to the end of the drive shaft. The code scanning module is provided beside the placement tooling mechanism and scans and identifies the code scanning label at the end of the drive shaft.

[0014] Furthermore, a blanking mechanism is provided beside the machine table. The blanking mechanism includes: a blanking support provided beside the machine table, a blanking slide table provided on the blanking support, a Z-axis module provided on the moving end of the blanking slide table, a plurality of material taking modules provided on the moving end of the Z-axis module, and a blanking conveyor belt provided beside the blanking support. The blanking slide table drives the Z-axis module to move above the placement tooling mechanism and the blanking conveyor belt. The Z-axis module drives the material taking modules to move up and down reciprocally. The material taking modules clamp and place the drive shaft. A defective product sorting box is provided beside the blanking support. The blanking slide table drives the Z-axis module to move above the defective product sorting box.

[0015] The above technical solutions provided by the embodiments of the present application have the following advantages compared with the prior art:

[0016] 1. In the solution provided by the embodiment of the present application, the pin feeder sends the pins to the receiving nozzle module, and the press drives the pressing head mechanism to move downward, so that the pins are pressed into the pin holes of the drive shafts placed on the placement tooling mechanism through the pressing head ejector rod, realizing the automatic assembly of the drive shafts and the pins, reducing the manual participation in the assembly process, and improving the degree of automatic assembly.

[0017] 2. The pin feeder can automatically detect the hardness of the pins, so as to automatically reject the pins with unqualified hardness detection, ensuring that the quality of the pins for assembly meets the requirements, avoiding the situation of rework due to the detection of pins not meeting the assembly requirements after assembly, and effectively ensuring the overall processing efficiency and processing quality.

[0018] 3. A pin detection sensor is provided on the receiving nozzle module to detect and identify the pin situation in the receiving nozzle module, and determine whether there is a lack of pins or multiple pins, ensuring that the assembly between the pins and the drive shafts can be carried out according to the set requirements and improving the assembly quality.

[0019] 4. The code scanning module scans and detects the code scanning label, automatically reads the product information, and writes the corresponding pin pressing process data into the corresponding product information, effectively managing the data.

[0020] 5. Automatically judge the unqualified products of pin pressing, and alarm and reject them when unqualified products appear.

[0021] 6. After the assembly work of the pins and the drive shafts is completed, the qualified products are automatically blanked and sent to the next process for processing, meeting the automatic processing and management of the production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings here are incorporated into the specification and form a part of this specification, showing the embodiments in line with the present application, and are used together with the specification to explain the principles of the present application.

[0023] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] One or more embodiments are illustrated by way of example in the pictures in the corresponding drawings. These exemplary illustrations do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements, unless otherwise stated, and the drawings in the figures do not constitute a scale limitation.

[0025] Figure 1 A double-station automatic pin feeding and pin pressing machine provided for the embodiments of the present application.

[0026] Figure 2 The front view of the present application.

[0027] Figure 3 The schematic structural diagram of the pressing head mechanism from the first perspective.

[0028] Figure 4 The schematic structural diagram of the pressing head mechanism from the second perspective.

[0029] Figure 5 The schematic sectional view of the stop cylinder pushing the stop piston to a position where the stop through-hole corresponds to the receiving nozzle.

[0030] Figure 6 The schematic sectional view of the stop cylinder pushing the stop piston to a position where the stop through-hole corresponds to the ejection through-hole.

[0031] Figure 7 The schematic structural diagram of the placing tooling mechanism.

[0032] Figure 8 The schematic structural diagram of the blanking mechanism.

[0033] Explanation of reference numerals in the drawings:

[0034] 1. Machine; 2. Press; 3. Pin feeder; 4. Ram mechanism; 41. Ram seat; 42. Ram ejector rod; 43. Receiving nozzle module; 431. Receiving nozzle support plate; 4311. Ejection through hole; 432. Receiving nozzle; 433. Stop cavity; 4331. Stop seat; 4332. Stop plate; 434. Stop cylinder; 435. Stop piston; 441. Guide rod; 442. Guide sleeve; 443. Buffer spring; 45. Pin detection sensor; 5. Placing tooling mechanism; 51. Servo slide; 52. Positioning tooling; 6. Scanning code module; 7. Material discharging mechanism; 71. Material discharging support; 72. Material discharging slide; 73. Z-axis module; 74. Material picking module; 75. Material discharging conveyor belt; 76. Defective product sorting box. Detailed implementation mode

[0035] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application.

[0036] The following disclosure provides many different embodiments or examples for implementing different structures of the present application. To simplify the disclosure of the present application, components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present application. In addition, the present application may repeat reference numerals and / or letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0037] For ease of description, spatial relative relationship terms may be used in the text to describe the relative positional relationship or movement of one element or feature shown in the figure with respect to another element or feature. These relative relationship terms are, for example, "inside", "outside", "inner side", "outer side", "below", "beneath", "above", "over", "front", "rear", etc. Such spatial relative relationship terms are intended to include different orientations of the device during use or operation other than the orientations depicted in the figure. For example, if the device in the figure undergoes a position flip, attitude change, or motion state change, then these directional indications will change accordingly. For example, an element described as "below other elements or features" or "beneath other elements or features" will subsequently be oriented as "above other elements or features" or "over other elements or features". Therefore, the exemplary term "below" can include both the upper and lower orientations. The device can be oriented otherwise (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used in the text are interpreted accordingly.

[0038] In order to solve the technical problems of low assembly efficiency and unstable assembly effect of the pins on the drive shaft in the prior art, the present application provides a double-station automatic pin feeding and pressing machine, which can press the pins into the pin holes of the drive shaft placed on the placement tooling mechanism through the pressing head ejector rod, realizing the automatic assembly of the drive shaft and the pins, reducing the manual participation in the assembly process, and improving the degree of automatic assembly.

[0039] Please refer to Figure 1 、 Figure 2 A double-station automatic pin feeding and pressing machine provided by an embodiment of the present application includes: a machine table 1, a press 2 disposed on the machine table 1, and a pin feeding machine 3 disposed beside the machine table 1. A pressing head mechanism 4 is disposed at the output end of the press 2. A placement tooling mechanism 5 is disposed on the machine table 1. The placement tooling mechanism 5 moves to the lower side of the pressing head mechanism 4, and the press 2 drives the pressing head mechanism 4 to move downward to actively contact the placement tooling mechanism 5. Please refer to Figure 3 The pressing head mechanism 4 includes: a pressing head seat 41, a pressing head ejector rod 42 disposed on the pressing head seat 41, and a receiving nozzle module 43 disposed at the front end of the pressing head ejector rod 42. The pin feeding machine 3 sends the pins to the receiving nozzle module 43, and the pressing head ejector rod 42 presses the pins from the receiving nozzle module 43 into the pin holes of the drive shaft placed on the placement tooling mechanism 5.

[0040] Before processing, pour the pins to be assembled into the pin feeder 3. The pin feeder 3 has an automatic hardness detection function inside, which can detect the hardness of the pins in the pin feeder 3 and sort out the pins whose hardness detection does not meet the set standard, so as to ensure that the hardness of the supplied pins meets the working requirements of the drive shaft after assembly. After the pins are sorted, when pin feeding is required, vibratory feeding is carried out through the vibratory disk in the pin feeder 3, so that the pins move to the discharge port of the pin feeder 3 in sequence. A hose is connected to the discharge port of the pin feeder 3, and the pins at the discharge port of the pin feeder 3 are blown out by compressed air, and the pins move along the hose to the corresponding position of the receiving nozzle module 43, and the receiving nozzle module 43 moves the pins to be assembled to the front end of the pressing head rod 42.

[0041] During operation, place the drive shaft to be assembled on the placement tooling mechanism 5 manually or by a manipulator, so that the pin holes on the drive shaft face vertically upward. The placement tooling mechanism 5 moves the drive shaft so that the pin holes on the drive shaft correspond to the position of the pressing head rod 42. Start the press 2 to move the pressing head rod 42 downward, so that the pressing head rod 42 pushes the pin out of the receiving nozzle module 43 and pushes the end of the pin into the pin hole, so as to achieve the pressing of the pin in place and meet the assembly requirements between the pin and the drive shaft. After the pressing assembly of the pin and the drive shaft is completed, the drive shaft is sent to the discharging station through the placement tooling mechanism 5, so as to send out the assembled drive shaft for discharging and repeat the assembly work.

[0042] This application uses the pin feeder 3 to send the pins to the receiving nozzle module 43, and drives the pressing head mechanism 4 to move downward through the press 2, so as to press the pins into the pin holes of the drive shaft placed on the placement tooling mechanism 5 through the pressing head rod 42, realizing the automatic assembly of the drive shaft and the pins, reducing the manual participation in the assembly process and improving the degree of automatic assembly.

[0043] In some embodiments, refer to Figure 3 、 Figure 4 、 Figure 5 and Figure 6, the receiving nozzle module 43 includes: a receiving nozzle support plate 431 disposed at the output end of the press 2, a receiving nozzle 432 disposed on the receiving nozzle support plate 431, a stop cavity 433 disposed on the bottom surface of the receiving nozzle support plate 431, a stop cylinder 434 disposed beside the stop cavity 433, and a stop piston 435 connected to the output end of the stop cylinder 434. The receiving nozzle support plate 431 and the stop cavity 433 are provided with ejection through holes 4311 corresponding to the position of the pressing head rod 42. The receiving nozzle 432 is connected to the pin feeder 3 through a hose. The connection line between the central hole of the receiving nozzle 432 and the ejection through hole 4311 is parallel to the direction in which the stop cylinder 434 drives the stop piston 435 to move. The stop cylinder 434 drives the stop piston 435 to move between the receiving nozzle 432 and the ejection through hole 4311.

[0044] Please refer to Figure 5 , when the pin feeder 3 sends the pin to the receiving nozzle 432, the stop cylinder 434 moves the stop piston 435 to the corresponding position, and when the pin is transported to the corresponding position in the stop cavity 433 and the drive shaft is placed on the placement tooling mechanism 5. Please refer to Figure 6 , start the stop cylinder 434 to move the pin to the corresponding position of the ejection through hole 4311. The press 2 is started, so that the pressing head rod 42 moves downward relative to the receiving nozzle module 43, so that the front end of the pressing head rod 42 passes through the ejection through hole 4311 on the receiving nozzle support plate 431, and after contacting the pin, pushes the pin downward, so that the pin is ejected from the ejection through hole 4311 at the bottom of the stop cavity 433, and the front end of the pin extends into the pin hole of the drive shaft. The press 2 continues to apply pressure, so that the pressing head rod 42 continues to move downward until the set limit movement position, so as to ensure that the pin is completely pushed in place to meet the assembly requirements between the drive shaft and the pin.

[0045] In some embodiments, the stop piston 435 is provided with a stop through hole corresponding to the receiving nozzle 432 and the ejection through hole 4311. The stop cylinder 434 drives the stop piston 435 to move to the two extreme positions at both ends so that the stop through hole is respectively located at the positions corresponding to the receiving nozzle 432 and the ejection through hole 4311. The stop cavity 433 includes: two stop seats 4331 disposed on the bottom surface of the receiving nozzle support plate 431, a stop baffle 4332 erected on the bottom surfaces of the two stop seats 4331. The stop baffle 4332 is provided with an ejection through hole 4311 corresponding to the position of the pressing head rod 42. The stop piston 435 moves within the interval enclosed by the stop seats 4331 and the stop baffle 4332.

[0046] When the pin feeder 3 sends pins to the receiving nozzle 432, if the receiving nozzle module 43 is in the state of waiting for pins, the stop cylinder 434 moves the stop piston 435 towards the receiving nozzle module 43, so that the stop through-hole on the stop piston 435 corresponds to the central hole position of the receiving nozzle 432, so that the pins at the receiving nozzle 432 fall into the stop through-hole, and the pins are limited and fixed through the stop through-hole and the stop plate 4332. At this time, when the pin feeder 3 continues to send pins to the receiving nozzle 432, due to the blockage of the pins inside the stop through-hole, the subsequent pins will be blocked outside the stop cavity 433, preventing multiple pins from existing in the stop through-hole at the same time and interfering with the movement of the stop piston 435, or even causing damage to the mechanism.

[0047] When it is necessary to install the pin into the pin hole of the drive shaft, the stop cylinder 434 is started, and the stop piston 435 is moved towards the pressing head ejector rod 42, so that the position of the ejection through-hole 4311 corresponds to the stop through-hole. During this process, due to the misalignment between the stop through-hole and the central hole of the receiving nozzle 432, the top surface of the stop piston 435 contacts the pin to be assembled at the receiving nozzle 432, satisfying the blockage of the pin to be assembled and avoiding affecting the current pin assembly work. At the same time, when the stop through-hole moves to a position corresponding to the ejection through-hole 4311, the pin will fall through the ejection through-hole 4311 on the stop plate 4332 under the action of gravity and fall to a position in contact with the pin hole of the drive shaft. The press 2 is started, and the pressing head ejector rod 42 is driven to move downward, so that the pressing head ejector rod 42 passes through the ejection through-hole 4311 on the receiving nozzle support plate 431, and after contacting the top surface of the pin, with the continuous pressure of the press 2, the pin is pressed into the pin hole of the drive shaft to complete the assembly work between the pin and the drive shaft.

[0048] In some embodiments, pin detection sensors 45 are provided on one side or both sides of the stop seat 4331 corresponding to the position of the receiving nozzle 432. Detection holes are provided on the stop seat 4331 and the stop piston 435 corresponding to the output end of the pin detection sensor 45, and the detection holes pass through the stop through-hole. When the stop through-hole corresponds to the central hole position of the receiving nozzle 432, the pin detection sensor 45 passes through the detection hole to detect whether the pins in the stop through-hole are in place, so as to judge whether there are corresponding pins in the stop through-hole before moving the stop through-hole to a position corresponding to the ejection through-hole 4311, avoiding abnormal assembly caused by the lack of pins in the stop through-hole and not being detected in time during the assembly process, ensuring the overall assembly quality, and reducing the production of unqualified products.

[0049] In some optional embodiments, please refer to Figure 4, an opposed sensor is used as the pin detection sensor 45. The two ends of the opposed sensor are respectively arranged on both sides of the stop seat 4331. One end of the opposed sensor is the transmitting end, and the other end is the receiving end. When the infrared light emitted by the transmitting end can enter the receiving end, it is determined that there is no pin in the current stop through-hole; when the infrared light emitted by the transmitting end is blocked by the pin, the receiving end cannot receive the infrared light emitted by the transmitting end, so the output level changes. When the control system receives the corresponding level change, it can determine whether there is a pin in the current stop through-hole, which is convenient for driving the stop cylinder 434 to drive the stop piston 435, so as to meet the requirement of pin feeding.

[0050] In some embodiments, a plurality of guide rods 441 are provided on the bottom surface of the punch head seat 41. A plurality of guide sleeves 442 corresponding to the guide rods 441 are provided on the receiving nozzle module 43. The guide sleeves 442 pass through the receiving nozzle module 43, the guide rods 441 pass through the guide sleeves 442, and a buffer spring 443 is sleeved on the guide rods 441. The buffer spring 443 is arranged between the guide sleeve 442 and the punch head seat 41. During the process of the press 2 driving the punch head seat 41 to move downward, the bottom surface of the receiving nozzle module 43 will first contact the placement tooling mechanism 5. At this time, the ejecting through-hole 4311 on the stop plate 4332 is located at a position corresponding to the pin hole of the driving shaft. By moving the stop piston 435 in place through the stop cylinder 434, the stop through-hole where the pin is located will correspond to the position of the ejecting through-hole 4311, so that the pin passes through the ejecting through-hole 4311 and falls on the pin hole of the driving shaft. With the continuous driving of the press 2, the punch head seat 41 will continue to move downward. At this time, due to the restriction of the placement tooling mechanism 5 on the receiving nozzle module 43, the receiving nozzle module 43 will move relative to the punch head seat 41. The punch head push rod 42 will continue to move downward and press the pin into the pin hole of the driving shaft. During this process, the buffer spring 443 is compressed by force to perform buffering, so as to avoid damage to the mechanism caused by the collision between the receiving nozzle module 43 and the punch head seat 41 due to the too fast downward pressure speed of the press 2.

[0051] After the crimping of the pin is completed, the press 2 resets, causing the press head ejector rod 42 to move upward relative to the receiving nozzle module 43 and gradually withdraw and separate from the stop through hole and the ejecting through hole 4311. When the press head ejector rod 42 is completely separated from the stop through hole, the stop cylinder 434 drives the stop piston 435 to move and reset in the direction of the receiving nozzle 432. During the reset process, the elastic potential energy accumulated by the buffer spring 443 is converted into kinetic energy, thereby continuously generating a downward pushing force on the receiving nozzle module 43 to ensure the separation effect between the press head ejector rod 42 and the stop through hole, and to prevent the press head ejector rod 42 from being unable to completely separate from the stop through hole due to jamming between the press head ejector rod 42 and the stop through hole or the ejecting through hole 4311. Furthermore, when the stop cylinder 434 drives the stop piston 435 to reset, the press head ejector rod 42 may be broken due to the lateral shear force, thus causing damage to the mechanism. Therefore, the overall safety and stability of the equipment are improved.

[0052] In some embodiments, a buffer block is provided on the bottom surface of the guide rod 441 to prevent the bottom surface of the guide rod 441 from colliding with the surface of the placement tooling mechanism 5 or the machine table 1 during the downward movement driven by the press 2, thereby preventing the surface of the placement tooling mechanism 5 or the machine table 1 from being damaged by pressing, etc., and ensuring the safety and stability of the overall structure.

[0053] In some embodiments, a pressure sensor is provided on the press head seat 41, and the top of the press head ejector rod 42 is connected to the pressure sensor. During the process of the press head ejector rod 42 pushing the pin into the pin hole of the drive shaft, the pressure sensor detects the mutual pressure between the press head ejector rod 42 and the pin and transmits the detection data back to the control system. When the press head ejector rod 42 contacts the pin, an upward reaction force will be generated on the press head ejector rod 42. Since the force exerted by the press head ejector rod 42 on the pin is the same as the reaction force exerted by the pin on the press head ejector rod 42, therefore, by detecting the force received by the press head ejector rod 42 through the pressure sensor, the force received by the pin can be obtained. During the normal pin crimping process, the force received by the pin at each moment should be stable. By detecting the force situation, it is possible to analyze whether the current pin crimping work is in place and whether there are abnormal situations, etc. When the reading of the pressure sensor is too low, it may be that the press head ejector rod 42 fails to contact the pin normally, or there is a lack of pin in the stop through hole. When the reading of the pressure sensor is too high, it may be that the position of the pin hole of the drive shaft and the ejecting through hole 4311 is mismatched, resulting in damage to the drive shaft or the pin due to extrusion, or the pin is pushed too deep, causing the pin to contact and squeeze the bottom surface of the placement tooling mechanism 5, resulting in damage to the equipment and the mechanism. Thus, through the reading of the pressure sensor, the assembly effect between the drive shaft and the pin can be detected and identified, so as to sort out unqualified products with abnormal assembly.

[0054] In some embodiments, refer to Figure 7 , the placement tooling mechanism 5 includes: a servo slide 51 disposed on the machine table 1, and a positioning tooling 52 disposed on the servo slide 51, and the servo slide 51 drives the positioning tooling 52 to move back and forth. By driving the positioning tooling 52 to move through the servo slide 51, the driving shaft placed on the positioning tooling 52 can be moved below the press 2 for the pin assembly work, and after the assembly is completed, the driving shaft can be moved to the blanking station for blanking.

[0055] In some embodiments, refer to Figure 2 , a code scanning module 6 is disposed on the machine table 1, a code scanning label is adhered to the end of the driving shaft, and the code scanning module 6 is disposed beside the placement tooling mechanism 5 and scans and identifies the code scanning label at the end of the driving shaft. The code scanning label adopts a two-dimensional code or a bar code. In an optional embodiment, a two-dimensional code label is used as the code scanning label. Before the pin crimping assembly of the driving shaft, under the drive of the servo slide 51, the driving shaft placed on the positioning tooling 52 is moved to a position corresponding to the code scanning module 6, and the two-dimensional code on the driving shaft is scanned and identified by the code scanning module 6, so as to facilitate binding and writing subsequent pin assembly information, pressure sensor readings and other information with the product information of the current driving shaft, and meet the requirement of tracing various processes of the driving shaft in the subsequent processing process.

[0056] In some embodiments, refer to Figure 1 , Figure 2 and Figure 8, a blanking mechanism 7 is provided beside the machine table 1. The blanking mechanism 7 includes: a blanking support 71 provided beside the machine table 1, a blanking slide table 72 provided on the blanking support 71, a Z-axis module 73 provided on the moving end of the blanking slide table 72, a plurality of material taking modules 74 provided on the moving end of the Z-axis module 73, and a blanking conveyor belt 75 provided beside the blanking support 71. The blanking slide table 72 drives the Z-axis module 73 to move above the placement tooling mechanism 5 and the blanking conveyor belt 75. The Z-axis module 73 drives the material taking modules 74 to move up and down reciprocally. The material taking modules 74 clamp and place the drive shaft. After the assembly of the drive shaft and the pin is completed, the servo slide table 51 moves the positioning tooling 52 to the blanking station. At the same time, the blanking slide table 72 drives the material taking modules 74 to move above the positioning tooling 52, and the Z-axis module 73 drives the material taking modules 74 to move downward, facilitating the material taking modules 74 to pick up the drive shaft on the positioning tooling 52. After the picking is completed, the Z-axis module 73 resets, moves the drive shaft upward through the clamping of the material taking modules 74, and then moves the drive shaft to above the blanking conveyor belt 75 through the blanking slide table 72 for placement, so as to send the drive shaft to the equipment of the next process through the blanking conveyor belt 75 for subsequent assembly and processing.

[0057] In some optional embodiments, the material taking module 74 adopts a pneumatic gripper. By controlling the compressed air, the clamping part of the pneumatic gripper is driven to open and close, so as to meet the requirement of clamping and fixing the drive shaft. Since enough space needs to be reserved on both sides of the drive shaft for the grasping of the pneumatic gripper, the placement station of the positioning tooling 52 is set as a two-stage structure, so as to reserve enough avoidance spaces for the clamping of the pneumatic gripper, ensuring that while the drive shaft can be placed, the clamping effect of the pneumatic gripper on the drive shaft is not affected by the positioning tooling 52.

[0058] In some embodiments, a defective product sorting box 76 is provided beside the blanking support 71, and the blanking slide table 72 drives the Z-axis module 73 to move above the defective product sorting box 76. When the information of the drive shaft is abnormal during the scanning code process, or when the reading of the pressure sensor is abnormal during the process of pressing the pin, the corresponding drive shaft will be determined as a defective product. Therefore, when the drive shaft is discharged through the blanking mechanism 7, after the drive shaft is clamped by the material taking modules 74, the blanking slide table 72 drives the material taking modules 74 to move above the defective product sorting box 76, and places the defective drive shaft in the defective product sorting box 76 for centralized management, which is convenient for the operator to centrally recycle the defective products and perform re-inspection and rework on the defective products.

[0059] In the solution provided by the embodiment of the present application, the pin feeder sends pins to the receiving nozzle module, and drives the pressing head mechanism to move downward through a press, so that the pins are pressed into the pin holes of the drive shafts placed on the placement tooling mechanism by the pressing head ejector rod, realizing the automatic assembly of the drive shafts and pins, reducing manual participation in the assembly process, and improving the degree of automatic assembly.

[0060] The pin feeder can automatically detect the hardness of the pins, and thus automatically reject the pins with unqualified hardness detection results, so as to ensure that the quality of the pins for assembly meets the requirements, avoid the situation of rework caused by detecting that the pins do not meet the assembly requirements after assembly, and effectively ensure the overall processing efficiency and processing quality.

[0061] In the above embodiments, the descriptions of each embodiment have their own emphases. For parts not described in detail in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0062] In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0063] In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "plural" means two or more, unless otherwise specifically defined.

[0064] In the present application, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0065] In this application, unless otherwise clearly specified or limited, the first feature being "on" or "under" the second feature may include direct contact between the first and second features, or may include contact between the first and second features through additional features therebetween rather than direct contact. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0066] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic descriptions of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0067] Obviously, those skilled in the art can make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, provided that these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, this application also intends to include these changes and modifications.

[0068] As described above, this is the specific implementation manner of this application, but the protection scope of this application is not limited thereto. Any person skilled in the art within the technical scope disclosed by this application can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered by the protection scope of this application. Therefore, the protection scope of this application shall be subject to the protection scope of the claims.

Claims

1. A double-station automatic pin feeding and pin pressing machine, comprising: The tool holder is provided with a plurality of guide rods, and the guide rods are provided with a plurality of guide sleeves, the guide sleeves are provided with a plurality of guide sleeves, the guide sleeves are provided with a plurality of guide sleeves, the guide sleeves are provided with a plurality of guide sleeves, the guide sleeves are provided with a plurality of guide sleeves, the guide sleeves are provided with a plurality of guide sleeves, the guide sleeves are provided with a plurality of guide sleeves, the guide sleeves are provided with a plurality of guide sleeves, the guide sleeves are provided with a plurality of guide sleeves, the guide sleeves are provided with a plurality of guide sleeves, and the guide sleeves are provided with a plurality of guide sleeves. A buffer block is provided on the bottom surface of the guide rod.

2. The double-station automatic pin feeding and pin pressing machine according to claim 1 is characterized in that: The receiving nozzle module includes: a receiving nozzle support plate arranged on the output end of the press, a receiving nozzle arranged on the receiving nozzle support plate, a stop cavity arranged on the bottom surface of the receiving nozzle support plate, a stop cylinder arranged next to the stop cavity, and a stop piston connected to the output end of the stop cylinder. The receiving nozzle support plate and the stop cavity are provided with ejection holes at the position of the pressure head push rod corresponding to the position of the receiving nozzle support plate and the stop cavity. The receiving nozzle is connected to the pin feeder through a hose. The connecting line between the center hole of the receiving nozzle and the ejection hole is parallel to the direction in which the stop cylinder drives the stop piston to move. The stop cylinder drives the stop piston to move between the receiving nozzle and the ejection hole.

3. The double-station automatic pin feeding and pin pressing machine according to claim 2 is characterized in that: The stop piston is provided with stop holes corresponding to the receiving nozzle and the ejection through hole, and the stop cylinder drives the stop piston to move to the extreme positions at both ends so that the stop through holes are respectively located at positions corresponding to the receiving nozzle and the ejection through hole.

4. The double-station automatic pin feeding and pin pressing machine according to claim 2 is characterized in that: The stop cavity includes: two stop seats arranged on the bottom surface of the receiving nozzle bracket plate, and stop plates mounted on the bottom surfaces of the stop seats on both sides. The stop plates are provided with ejection holes at the positions corresponding to the pressure head ejector rods, and the stop piston moves within the interval surrounded by the stop seats and the stop plates.

5. The double-station automatic pin feeding and pin pressing machine according to claim 4 is characterized in that: A pin detection sensor is provided on one side or both sides of the stop seat corresponding to the position of the receiving nozzle, and a detection hole is provided on the output end of the stop seat and the stop piston corresponding to the pin detection sensor, and the detection hole passes through the stop through hole.

6. The double-station automatic pin feeding and pinning machine according to claim 1 is characterized in that: A pressure sensor is provided on the pressure head seat, and the top of the pressure head push rod is connected to the pressure sensor. In the process of the pressure head push rod pushing the pin into the pin hole of the drive shaft, the pressure sensor detects the mutual pressure between the pressure head push rod and the pin, and transmits the detection data back to the control system.

7. The double-station automatic pin feeding and pin pressing machine according to claim 1 is characterized in that: The placement tooling mechanism includes: a servo slide arranged on the machine platform, and a positioning tooling arranged on the servo slide, and the servo slide drives the positioning tooling to move back and forth.

8. The double-station automatic pin feeding and pin pressing machine according to claim 1 is characterized in that: The machine is provided with a code scanning module, and the end of the driving shaft is covered with a code scanning label. The code scanning module is arranged next to the tooling mechanism and scans and identifies the code scanning label on the end of the driving shaft.

9. The double-station automatic pin feeding and pin pressing machine according to claim 1, characterized in that: A unloading mechanism is provided on the side of the machine, and the unloading mechanism includes: an unloading bracket provided on the side of the machine, an unloading slide provided on the unloading bracket, a Z-axis module provided on the moving end of the unloading slide, a plurality of picking modules provided on the moving end of the Z-axis module, and an unloading conveyor provided on the side of the unloading bracket. The unloading slide drives the Z-axis module to move above the placement tooling mechanism and the unloading conveyor, and the Z-axis module drives the picking module to move up and down, and the picking module clamps and places the driving shaft. A defective product sorting box is provided on the side of the unloading bracket, and the unloading slide drives the Z-axis module to move above the defective product sorting box.

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