A vacuum-maintained precision transfer device

Abstract

A vacuum-maintained precision transfer device relates to the field of precision machining technology. The present invention is to solve the problem that the surface of the workpiece is easily damaged during the transfer of existing ultra-precision machining workpieces. The present invention includes a vacuum suction cup, a suction cup connector, a zero-point locator, a loading platform, a zero-point locator base, an air pipe quick connector, a robotic arm quick-change connector assembly and a loading quick-change connector assembly. The lower end of the suction cup connector is fixedly connected to the upper part of the zero-point locator, and the suction cup connector and the zero-point locator base are connected via the loading quick-change connector assembly. The upper end of the suction cup connector is fixedly connected to the lower end of the vacuum suction cup. The upper end of the vacuum suction cup is provided with an adsorption end face. A robotic arm quick-change connector assembly is provided between the suction cup connector and the transfer robotic arm. The airway of the vacuum suction cup adsorption end face is connected to the robotic arm air pump through the suction cup connector and the robotic arm quick-change connector assembly from front to back. The present invention is used for the precision transfer of workpieces.

Description

Technical Field

[0001] The present invention relates to the field of precision machining technology, and in particular to a vacuum-maintained precision transfer device. Background Art

[0002] With the continuous development of society and the increasing demand for product quality, the requirements for ultra-precision machining technology are constantly increasing. With the increasing demand for workpiece surface processing quality, damage to workpieces during transportation between different processes cannot be ignored. Current traditional transportation methods inevitably damage the workpiece surface quality. Furthermore, after transportation, the workpiece needs to be repositioned and adjusted on the new processing platform, which reduces processing efficiency.

[0003] In response to the existing transfer problem, the present invention uses a vacuum suction cup for full-process suction to ensure that there is no contact with the workpiece during the transfer process, thereby not damaging the surface of the workpiece. Then, by using a zero-point locator, the workpiece can be processed without re-positioning after being transferred from the previous process to the next process, thereby improving the processing efficiency of the workpiece. Summary of the Invention

[0004] In order to solve the problem that the surface of the workpiece is easily damaged during the transportation process of the existing ultra-precision machining workpiece, the present invention further proposes a vacuum-maintained precision transportation device.

[0005] The technical solution adopted by the present invention to solve the above technical problems is:

[0006] A vacuum-maintained precision transfer device includes a vacuum suction cup, a suction cup connector, a zero-point locator, a loading platform, a zero-point locator base, a trachea quick connector, a robotic arm quick-change connector assembly, and a loading quick-change connector assembly. The zero-point locator base is fixedly connected to the loading platform, the lower part of the zero-point locator is fixedly connected to the upper end of the zero-point locator base, the lower end of the suction cup connector is fixedly connected to the upper end of the zero-point locator, the suction cup connector and the zero-point locator base are connected by the loading quick-change connector assembly, and the upper end of the suction cup connector is fixedly connected to the upper end of the vacuum suction cup. The lower end is fixed, and the upper end of the vacuum suction cup is provided with an adsorption end face. The air pipe quick connector is provided on one side of the zero point locator base and is connected to the external air pump. The air channel of the vacuum suction cup adsorption end face is connected to the external air pump through the suction cup connector, the quick-change connector assembly, the zero point locator base and the air pipe quick connector from front to back. A robotic arm quick-change connector assembly is provided between the suction cup connector and the transfer robotic arm. The air channel of the vacuum suction cup adsorption end face is connected to the robotic arm air pump through the suction cup connector and the robotic arm quick-change connector assembly from front to back.

[0007] Furthermore, the carrier quick-change connector assembly includes a carrier quick connector male head and a carrier quick connector female head. The carrier quick connector male head is fixedly connected to the middle part of the lower end surface of the suction cup connector, and the carrier quick connector female head is fixedly connected to the middle part of the upper end surface of the zero point locator base. The carrier quick connector male head and the carrier quick connector female head are plugged into each other.

[0008] Furthermore, a boss is provided in the middle of the upper end surface of the zero point locator base, the zero point locator is sleeved on the outside of the boss, and the object carrier quick connector female is fixedly connected to the middle of the upper end surface of the boss.

[0009] Furthermore, the zero-point locator has a hollow structure in the axial direction. The zero-point locator includes a chassis and a tray. The tray is arranged above the chassis and can be positioned, locked, or disengaged from the chassis. The chassis is fixed to the upper end of the zero-point locator base, and the tray is fixed to the lower end of the suction cup connector.

[0010] Furthermore, a plurality of magnets are evenly distributed and fixed to the outer side of the boss along the circumferential direction.

[0011] Furthermore, a limiting protrusion is provided on the lower end surface of the suction cup connector, and a limiting groove is provided on the tray of the zero point locator, and the limiting protrusion is inserted into the limiting groove.

[0012] Furthermore, the robotic arm quick-change connector assembly includes a robotic arm quick connector male head and a robotic arm quick connector female head. The robotic arm quick connector male head is fixedly connected to the inner side of a clamping arm of the transfer robotic arm, and the robotic arm quick connector female head is fixedly connected to one side of the side wall of the suction cup connector. The robotic arm quick connector male head and the robotic arm quick connector female head are plugged into each other.

[0013] Furthermore, a connecting chamber is provided in the middle of the suction cup connector, and a carrier quick connector male mounting groove is provided in the middle of the lower end surface of the suction cup connector. The carrier quick connector male head is threadedly connected to the carrier quick connector male head mounting groove. The upper end of the connecting chamber is connected to the airway of the vacuum suction cup adsorption end surface, and the lower end of the connecting chamber is connected to the carrier quick connector male head through the carrier quick connector male head mounting groove. A carrier quick connector female head mounting groove is provided in the middle of the upper end surface of the boss on the zero point locator base, and a base chamber is provided in the middle of the lower end surface of the zero point locator base. The carrier quick connector female head is threadedly connected to the carrier quick connector female head mounting groove. The upper end of the base chamber is connected to the carrier quick connector female head through the carrier quick connector female head mounting groove, and one side of the base chamber is connected to the trachea quick connector.

[0014] Furthermore, a robotic arm quick connector female head mounting groove is provided on one side of the suction cup connector, and the robotic arm quick connector female head is threadedly connected to the robotic arm quick connector female head mounting groove. One side of the connecting chamber is connected to the robotic arm quick connector female head through the robotic arm quick connector female head mounting groove. A robotic arm quick connector male head mounting groove is provided on the inner side surface of one clamping arm of the robotic arm, and the robotic arm quick connector male head is threadedly connected to the robotic arm quick connector male head mounting groove.

[0015] Furthermore, sealing rings are provided between the upper end surface of the suction cup connector and the lower end surface of the vacuum suction cup, and between the lower end surface of the zero point locator base and the upper end surface of the loading platform; sealing rings are provided between the loading quick connector male head and the loading quick connector male head mounting groove, between the loading quick connector female head and the loading quick connector female head mounting groove, between the robotic arm quick connector female head and the robotic arm quick connector female head mounting groove, and between the robotic arm quick connector male head and the robotic arm quick connector male head mounting groove.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention connects the male and female quick connectors of the suction cup connector and the zero-point locator base to each other during the workpiece in-situ suction and fixes the workpiece by evacuating the vacuum cup through an external air pump. After the workpiece is processed, the quick connector on the side wall of the suction cup connector is connected to the quick connector of the robotic arm, and the vacuum cup is evacuated through the vacuum air circuit on the robotic arm, so that the workpiece remains fixed on the vacuum cup during the transportation process, and the posture remains unchanged. The robotic arm can complete the transportation process by clamping the side wall of the suction cup connector, and has no contact with the workpiece during the entire transportation process. When the workpiece is transported to the platform of the next process, the positioning effect of the zero-point locator makes the posture of the workpiece consistent with that of the previous process. The present invention achieves the whole process of contactless transfer of the workpiece, achieves no damage to the workpiece surface, and improves the processing accuracy. At the same time, the positioning effect of the zero-point locator of the device makes the posture of the workpiece remain unchanged before and after transportation, without the need for re-positioning, thereby simplifying the processing steps and improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an exploded schematic diagram of a vacuum-maintained precision transfer device and a transfer robot arm of the present invention;

[0019] Figure 2 This is a schematic diagram of an exploded structure of a vacuum-maintained precision transfer device according to the present invention;

[0020] Figure 3 This is a schematic exploded top view of the structure of a vacuum-maintained precision transfer device of the present invention;

[0021] Figure 4 This is a schematic diagram of gas flow when the workpiece is fixed in the present invention;

[0022] Figure 5 Schematic diagram of gas flow during workpiece transportation in the present invention;

[0023] Figure 6 It is a schematic diagram of the clamping of the transfer robot arm during workpiece transfer in the present invention.

[0024] In the figure: 1-workpiece; 2-vacuum suction cup; 3-suction cup connector; 4-zero point locator; 5-quick connector male; 6-quick connector female; 7-magnet; 8-carrying platform; 9-zero point locator base; 10-trachea threaded connector; 11-robot arm quick connector female; 12-transfer robot arm; 13-robot arm quick connector male; 14-robot arm quick connector male mounting slot; 31-limiting protrusion; 32-connecting chamber; 33-carrying object quick connector male mounting slot; 34-robot arm quick connector female mounting slot; 41-chassis; 42-tray; 43-limiting groove; 91-boss; 92-carrying object quick connector female mounting slot; 93-base chamber. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] Specific implementation method 1: Combination Figures 1 to 6 Explain this embodiment. The vacuum-maintained precision transfer device described in this embodiment includes a vacuum suction cup 2, a suction cup connector 3, a zero-point locator 4, a loading platform 8, a zero-point locator base 9, a trachea quick connector 10, a robotic arm quick-change connector assembly and a loading quick-change connector assembly. The zero-point locator base 9 is fixedly connected to the loading platform 8, the lower part of the zero-point locator 4 is fixedly connected to the upper end of the zero-point locator base 9, the lower end of the suction cup connector 3 is fixedly connected to the upper part of the zero-point locator 4, the suction cup connector 3 and the zero-point locator base 9 are connected by a loading quick-change connector assembly, and the suction cup connector 3 is fixedly connected to the zero-point locator base 9. The upper end is fixedly connected to the lower end of the vacuum suction cup 2, and the upper end of the vacuum suction cup 2 is provided with an adsorption end face. The trachea quick connector 10 is provided on one side of the zero point locator base 9 and is connected to the external air pump. The airway of the adsorption end face of the vacuum suction cup 2 is connected to the external air pump through the suction cup connector 3, the quick-change connector assembly, the zero point locator base 9 and the trachea quick connector 10 from front to back. A robotic arm quick-change connector assembly is provided between the suction cup connector 3 and the transfer robotic arm 12. The airway of the adsorption end face of the vacuum suction cup 2 is connected to the robotic arm air pump through the suction cup connector 3 and the robotic arm quick-change connector assembly from front to back.

[0027] In this embodiment, the functions of the parts included in the transfer device are as follows:

[0028] Vacuum suction cup 2: Made of lightweight and durable aluminum alloy, the suction cup surface is processed to ensure adsorption capacity, ensuring that it can firmly adsorb the workpiece under vacuum state;

[0029] Suction cup connector 3: It is designed with multiple fixing holes and quick connectors to facilitate quick installation and removal, while ensuring a stable connection with the vacuum suction cup 2 and the zero point locator 4;

[0030] Zero point locator 4: The high-precision zero point locator ensures the precise positioning of the workpiece during transportation, reducing processing deviations caused by positioning errors;

[0031] Load quick-change connector assembly: adopts quick connection technology, making gas line connection more convenient and improving work efficiency;

[0032] The loading platform 8 is designed with multiple bolt holes to accommodate workpieces 1 of different sizes and shapes, providing good compatibility;

[0033] Robotic arm quick connector assembly: using quick connection technology, making the air circuit connection more convenient, the robotic arm can quickly and accurately clamp the suction cup connector 3;

[0034] Gas pipe quick connector 10: ensures the sealing and stability of the gas connection to prevent gas leakage.

[0035] Specific implementation method 2: Combination Figures 1 to 6 To illustrate this embodiment, the carrier quick-change connector assembly described in this embodiment includes a carrier quick connector male head 5 and a carrier quick connector female head 6. The carrier quick connector male head 5 is fixedly connected to the middle part of the lower end surface of the suction cup connector 3, and the carrier quick connector female head 6 is fixedly connected to the middle part of the upper end surface of the zero point locator base 9. The carrier quick connector male head 5 and the carrier quick connector female head 6 are plugged into each other.

[0036] The undisclosed technical features in this embodiment are the same as those in the first embodiment.

[0037] The object-carrying quick-change joint assembly designed in this way can realize the rapid connection of the air path between the suction cup connector 3 and the zero point locator base 9.

[0038] The cargo quick-change connector assembly is a normally closed quick connector. After the cargo quick connector male head 5 and the cargo quick connector female head 6 are plugged in, the internal gas path is connected.

[0039] Specific implementation method three: Combination Figures 1 to 6 To illustrate this embodiment, a boss 91 is provided in the middle of the upper end surface of the zero point locator base 9 in this embodiment, the zero point locator 4 is sleeved on the outside of the boss, and the load quick connector female 6 is fixedly connected to the middle of the upper end surface of the boss 91.

[0040] The undisclosed technical features in this embodiment are the same as those in the second embodiment.

[0041] Specific implementation method four: Combination Figures 1 to 6 To illustrate this embodiment, the zero point locator 4 described in this embodiment has a hollow structure in the axial direction. The zero point locator 4 includes a chassis 41 and a tray 42. The tray 42 is arranged above the chassis 41 and can be positioned, locked, or disengaged from the chassis 41. The chassis 41 is fixed to the upper end of the zero point locator base 9, and the tray 42 is fixed to the lower end of the suction cup connector 3.

[0042] The undisclosed technical features in this embodiment are the same as those in the third embodiment.

[0043] The tray 42 of the zero point locator 4 is connected to the suction cup connector 3. When it is inflated, the chassis 41 of the zero point locator 4 can fix the tray 42 to achieve precise positioning of the workpiece 1; when the air is cut off, the chassis 41 of the zero point locator 4 can release the tray 42, and at this time the transfer robot arm 12 can be used to clamp and move the suction cup connector 3.

[0044] Specific implementation method five: Combination Figures 1 to 6 To describe this embodiment, a plurality of magnets 7 are fixedly connected to the outer side of the boss 91 in a uniformly distributed manner along the circumferential direction.

[0045] The undisclosed technical features in this embodiment are the same as those in the fourth embodiment.

[0046] The magnets 7 are evenly distributed along the circumferential direction. When necessary, the magnets 7 can be used as an auxiliary fixing means to utilize the magnetic attraction of the magnets 7 to adsorb the tray assembly of the zero point locator 4, so that the tray assembly can smoothly enter the locking working area of ​​the zero point locator 4.

[0047] Specific implementation method six: combination Figures 1 to 6 To illustrate this embodiment, a limiting protrusion 31 is provided on the lower end surface of the suction cup connector 3 in this embodiment, and a limiting groove 43 is provided on the tray 42 of the zero point locator 4, and the limiting protrusion 31 is inserted into the limiting groove 43.

[0048] The undisclosed technical features in this embodiment are the same as those in the fourth embodiment.

[0049] In this embodiment, effective positioning between the suction cup connector 3 and the tray 42 of the zero point locator 4 is achieved through the limiting effect of the limiting protrusion 31 and the limiting groove 43.

[0050] Specific implementation method seven: combination Figures 1 to 6To illustrate this embodiment, the robotic arm quick-change connector assembly described in this embodiment includes a robotic arm quick connector male head 13 and a robotic arm quick connector female head 11. The robotic arm quick connector male head 13 is fixedly connected to the inner side of a clamping arm of the transfer robotic arm 12, and the robotic arm quick connector female head 11 is fixedly connected to one side of the side wall of the suction cup connector 3. The robotic arm quick connector male head 13 and the robotic arm quick connector female head 11 are plugged into each other.

[0051] The undisclosed technical features in this embodiment are the same as those in the third embodiment.

[0052] The robotic arm quick-change joint assembly designed in this way can realize the rapid connection of the air path between the suction cup connector 3 and the transfer robotic arm 12.

[0053] The robotic arm quick-change connector assembly is a normally closed quick connector. After the robotic arm quick connector male head 13 and the robotic arm quick connector female head 11 are plugged in, the internal air path is connected.

[0054] Specific implementation method eight: combination Figures 1 to 6 To explain this embodiment, a connecting chamber 32 is provided in the middle of the suction cup connector 3 in this embodiment, and a carrier quick connector male mounting groove 33 is provided in the middle of the lower end surface of the suction cup connector 3. The carrier quick connector male head 5 is threadedly connected to the carrier quick connector male head mounting groove 33. The upper end of the connecting chamber 32 is connected to the airway of the adsorption end surface of the vacuum suction cup 2, and the lower end of the connecting chamber 32 is connected to the carrier quick connector male head 5 through the carrier quick connector male head mounting groove 33. A carrier quick connector female head mounting groove 92 is provided in the middle of the upper end surface of the boss 91 on the zero point locator base 9, and a base chamber 93 is provided in the middle of the lower end surface of the zero point locator base 9. The carrier quick connector female head 6 is threadedly connected to the carrier quick connector female head mounting groove 92. The upper end of the base chamber 93 is connected to the carrier quick connector female head 6 through the carrier quick connector female head mounting groove 92, and one side of the base chamber 93 is connected to the trachea quick connector 10.

[0055] The undisclosed technical features in this embodiment are the same as those in the seventh embodiment.

[0056] With this design, when the workpiece 1 is fixed, the air between the suction end surface of the vacuum suction cup 2 and the workpiece 1 is discharged through the air passage of the suction end surface of the vacuum suction cup 2, through the connecting chamber 32, the male carrier quick connector mounting slot 33, the male carrier quick connector 5, the female carrier quick connector 6, the female carrier quick connector mounting slot 92, the base chamber 93, and the air pipe quick connector 10, and then discharged by the external air pump.

[0057] Specific implementation method nine: combination Figures 1 to 6To illustrate this embodiment, a robotic arm quick connector female head mounting groove 34 is provided on one side of the suction cup connector 3, and the robotic arm quick connector female head 11 is threadedly connected to the robotic arm quick connector female head mounting groove 34. One side of the connecting chamber 32 is connected to the robotic arm quick connector female head 11 through the robotic arm quick connector female head mounting groove 34. A robotic arm quick connector male head mounting groove 14 is provided on the inner side surface of one clamping arm of the robotic arm 12, and the robotic arm quick connector male head 13 is threadedly connected to the robotic arm quick connector male head mounting groove 14.

[0058] The undisclosed technical features in this embodiment are the same as those in the eighth embodiment.

[0059] With this design, when the workpiece is transferred, the gas between the adsorption end surface of the vacuum suction cup 2 and the workpiece 1 is discharged from the air channel of the adsorption end surface of the vacuum suction cup 2 through the connecting chamber 32, the robot arm quick connector female head mounting groove 34, the robot arm quick connector female head 11, the robot arm quick connector male head 13, and the robot arm quick connector male head mounting groove 14, and then discharged by the robot arm air pump.

[0060] Specific implementation method ten: Combination Figures 1 to 6 To illustrate this embodiment, a sealing ring is provided between the upper end surface of the suction cup connector 3 and the lower end surface of the vacuum suction cup 2, and between the lower end surface of the zero point locator base 9 and the upper end surface of the loading platform 8. A sealing ring is provided between the loading quick connector male head 5 and the loading quick connector male head mounting groove 33, between the loading quick connector female head 6 and the loading quick connector female head mounting groove 92, between the robot arm quick connector female head 11 and the robot arm quick connector female head mounting groove 34, and between the robot arm quick connector male head 13 and the robot arm quick connector male head mounting groove 14.

[0061] The undisclosed technical features in this embodiment are the same as those in the ninth embodiment.

[0062] This design ensures the airtightness of the airway and maintains the adsorption strength.

[0063] The suction cup connector 3 is fixedly connected to the tray 42 of the zero point locator 4 by a plurality of fixing bolts.

[0064] The chassis 41 of the zero point locator 4, the zero point locator base 9 and the loading platform 8 are fixedly connected by a plurality of fastening bolts.

[0065] The vacuum suction cup 2 is fixedly connected to the suction cup connector 3 via a plurality of connecting bolts.

[0066] The present invention provides a vacuum holding transfer device with a simple structure and good operation. It ensures that the workpiece is not damaged during the transfer process and also ensures the positioning accuracy of the workpiece after transfer. The assembly steps of the vacuum holding transfer device are as follows:

[0067] First, the vacuum suction cup 2 has six cylindrical countersunk holes in a circular array, which are fixed to the suction cup connector 3 via M6 bolts. The bottom of the suction cup connector 3 has four M5 threaded holes in a circular array, which are fixed to the tray 42 of the zero point locator 4 via M5 bolts. The bottom of the suction cup connector 3 has a square limiting protrusion 31, which can cooperate with the limiting groove 43 on the tray 42 to achieve a positioning effect. The side wall of the suction cup connector 3 has a mechanical arm quick connector female mounting groove 34, which fixes a normally closed mechanical arm quick connector female 11. At the same time, the center of its bottom also has a load quick connector male mounting groove 33, which fixes the load quick connector male 5. The zero point locator base 9 has eight through holes in a circular array, and the loading platform 8 has eight bolt holes in a circular array. Use M5 bolts to pass through the cylindrical countersunk holes of the zero point locator 4, then through the through holes of the zero point locator base 9, and connect to the bolt holes of the loading platform 8. A mounting groove 92 for a female quick connector is provided on the upper portion of the zero point locator base 9 to secure the female quick connector 6 , which can be connected to the male quick connector 5 at the bottom of the suction cup connector 3 . A hole is also provided on the side wall of the zero point locator base 9 to secure a threaded trachea connector 10 .

[0068] The following steps are included when using the vacuum holding transfer device to transfer workpieces:

[0069] Step 1: Pre-treatment: Before starting processing, inflate the zero-point locator 4 to ensure that it can fix the suction cup connector 3. Then, connect the suction cup connector 3 to the zero-point locator base 9 through the male and female quick-connectors 5 and 6. Use an external air pump to evacuate the vacuum cup 2 to ensure that the workpiece 1 can be firmly adsorbed.

[0070] Step 2, processing stage: After the workpiece 1 is fixed, precise processing operations can be performed. Due to the characteristics of vacuum adsorption, the workpiece 1 will not move during the processing;

[0071] Step 3. Preparation for transfer: After processing is completed, connect the female quick connector 11 of the suction cup connector 3 to the male quick connector 13 of the transfer robot 12 to perform vacuuming, and then cut off the air flow of the zero point locator 4 to unlock the zero point locator 4 to facilitate separation between the tray 42 and the base 41.

[0072] Step 4: Transfer process: The transfer robot arm 12 grabs the side wall of the suction cup connector 3 and transfers it together with the vacuum suction cup 2 and the workpiece 1. At this time, the workpiece 1 is still tightly adsorbed on the vacuum suction cup 2, and the posture remains unchanged. At the same time, the workpiece 1 is transferred without contact, avoiding any damage to the surface of the workpiece 1.

[0073] Step 5: Positioning and Handover: After workpiece 1 is transferred to the next process platform, the precise positioning function of the zero-point locator 4 ensures that the workpiece 1 is in the same position as in the previous process. The zero-point locator 4 is inflated to secure the entire device. The suction cup connector 3 is now connected to the male and female quick-connectors 5 and 6 of the zero-point locator base 9, and vacuum is applied. The transfer robot 12 is then released, disconnecting the male quick-connector 13 from the female quick-connector 11 of the suction cup connector 3, achieving seamless docking.

[0074] Through the above-mentioned transfer method, the present invention has the following advantages during the workpiece transfer process:

[0075] 1. Damage-free transportation: contact-free transportation throughout the entire process to protect the workpiece surface from damage;

[0076] 2. High-precision positioning: The high repeatability of the zero-point locator allows the workpiece to flow between different processes without secondary clamping, thereby improving processing accuracy;

[0077] 3. Easy operation: The use of quick connectors simplifies gas connection and improves the convenience of operation;

[0078] 4. Improve efficiency: Simplify the processing process, reduce the time wasted due to repositioning, and improve the overall processing efficiency.

[0079] In addition, when foreign matter appears on the surface of the vacuum suction cup 2 during the transfer of the workpiece 1, an external air pump can be used to blow air in the opposite direction. The airflow passes through the air pipe quick connector 10, the base chamber 93, the carrier quick connector female mounting groove 92, the carrier quick connector female head 6, the carrier quick connector male head 5, the carrier quick connector male mounting groove 33, the connecting chamber 32, and the air passage of the adsorption end face of the vacuum suction cup 2 to clean the end face of the vacuum suction cup 2 to ensure the stability of the adsorption of the workpiece 1.

[0080] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A vacuum-maintained precision transfer device, characterized by: The invention comprises a vacuum suction cup (2), a suction cup connector (3), a zero point locator (4), a loading platform (8), a zero point locator base (9), a trachea quick connector (10), a robot arm quick-change connector assembly and a loading quick-change connector assembly, wherein the zero point locator base (9) is fixedly connected to the loading platform (8), the lower part of the zero point locator (4) is fixedly connected to the upper end of the zero point locator base (9), the lower end of the suction cup connector (3) is fixedly connected to the upper part of the zero point locator (4), the suction cup connector (3) and the zero point locator base (9) are connected via the loading quick-change connector assembly, and the upper end of the suction cup connector (3) is fixedly connected to the upper end of the vacuum suction cup (2). The lower end is fixed, and the upper end of the vacuum suction cup (2) is provided with an adsorption end face, and the air pipe quick connector (10) is provided on one side of the zero point locator base (9) and is connected to the external air pump. The air passage of the adsorption end face of the vacuum suction cup (2) is connected to the external air pump in sequence from front to back through the suction cup connector (3), the quick-change connector assembly, the zero point locator base (9) and the air pipe quick connector (10). A robot arm quick-change connector assembly is provided between the suction cup connector (3) and the transfer robot arm (12). The air passage of the adsorption end face of the vacuum suction cup (2) is connected to the robot arm air pump in sequence from front to back through the suction cup connector (3) and the robot arm quick-change connector assembly. The cargo quick-change connector assembly comprises a cargo quick-change connector male head (5) and a cargo quick-change connector female head (6), wherein the cargo quick-change connector male head (5) is fixedly connected to the middle of the lower end face of the suction cup connector (3), and the cargo quick-change connector female head (6) is fixedly connected to the middle of the upper end face of the zero point locator base (9), and the cargo quick-change connector male head (5) and the cargo quick-change connector female head (6) are plug-connected; A boss (91) is provided in the middle of the upper end surface of the zero point locator base (9), the zero point locator (4) is sleeved on the outer side of the boss, and the object quick connector female (6) is fixedly connected to the middle of the upper end surface of the boss (91); The zero point locator (4) is a hollow structure in the axial direction. The zero point locator (4) includes a chassis (41) and a tray (42). The tray (42) is arranged above the chassis (41) and can be positioned, locked, or disengaged from the chassis (41). The chassis (41) is fixed to the upper end of the zero point locator base (9), and the tray (42) is fixed to the lower end of the suction cup connector (3). The robotic arm quick-change joint assembly comprises a robotic arm quick-change joint male head (13) and a robotic arm quick-change joint female head (11), wherein the robotic arm quick-change joint male head (13) is fixedly connected to the inner side of a clamping arm of the transfer robotic arm (12), and the robotic arm quick-change joint female head (11) is fixedly connected to one side of the side wall of the suction cup connector (3), and the robotic arm quick-change joint male head (13) and the robotic arm quick-change joint female head (11) are plug-connected.

2. The vacuum-maintained precision transfer device according to claim 1, characterized in that: A plurality of magnets (7) are evenly distributed and fixed to the outer side of the boss (91) along the circumferential direction.

3. The vacuum-maintained precision transfer device according to claim 1, characterized in that: A limiting protrusion (31) is provided on the lower end surface of the suction cup connector (3), and a limiting groove (43) is provided on the tray (42) of the zero point locator (4), and the limiting protrusion (31) is inserted into the limiting groove (43).

4. The vacuum-maintained precision transfer device according to claim 1, characterized in that: The middle of the suction cup connector (3) is provided with a connecting chamber (32), the middle of the lower end surface of the suction cup connector (3) is provided with a loading quick connector male head mounting groove (33), the loading quick connector male head (5) is threadedly connected in the loading quick connector male head mounting groove (33), the upper end of the connecting chamber (32) is connected to the air passage of the adsorption end surface of the vacuum suction cup (2), and the lower end of the connecting chamber (32) is connected to the loading quick connector male head (5) through the loading quick connector male head mounting groove (33), and the zero point is set. A loading quick connector female head mounting groove (92) is provided in the middle of the upper end surface of the upper boss (91) of the positioner base (9), and a base chamber (93) is provided in the middle of the lower end surface of the zero point positioner base (9). The loading quick connector female head (6) is threadedly connected in the loading quick connector female head mounting groove (92), and the upper end of the base chamber (93) is connected to the loading quick connector female head (6) through the loading quick connector female head mounting groove (92), and one side of the base chamber (93) is connected to the trachea quick connector (10).

5. The vacuum-maintained precision transfer device according to claim 4, characterized in that: A robotic arm quick connector female head mounting groove (34) is provided on one side of the suction cup connector (3), and the robotic arm quick connector female head (11) is threadedly connected to the robotic arm quick connector female head mounting groove (34). One side of the connecting chamber (32) is connected to the robotic arm quick connector female head (11) through the robotic arm quick connector female head mounting groove (34). A robotic arm quick connector male head mounting groove (14) is provided on the inner side surface of one clamping arm of the robotic arm (12), and the robotic arm quick connector male head (13) is threadedly connected to the robotic arm quick connector male head mounting groove (14).

6. The vacuum-maintained precision transfer device according to claim 5, characterized in that: A sealing ring is provided between the upper end surface of the suction cup connector (3) and the lower end surface of the vacuum suction cup (2), and between the lower end surface of the zero point positioner base (9) and the upper end surface of the loading platform (8). A sealing ring is provided between the loading quick connector male head (5) and the loading quick connector male head mounting groove (33), between the loading quick connector female head (6) and the loading quick connector female head mounting groove (92), between the robot arm quick connector female head (11) and the robot arm quick connector female head mounting groove (34), and between the robot arm quick connector male head (13) and the robot arm quick connector male head mounting groove (14).

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