Vacuum-maintained precise transfer device

Abstract

The invention discloses a vacuum-maintained precise transfer device, and relates to the technical field of precise machining. The problem that in the existing ultra-precision machining workpiece transferring process, the surface of a workpiece is prone to being damaged is solved. The mechanical arm comprises a vacuum suction cup, a suction cup connecting piece, a zero-point positioner, an object carrying platform, a zero-point positioner base, an air pipe quick connector, a mechanical arm quick-change connector assembly and an object carrying quick-change connector assembly, the lower end of the suction cup connecting piece is fixedly connected with the upper portion of the zero-point positioner, and the suction cup connecting piece is connected with the zero-point positioner base through the object carrying quick-change connector assembly; the upper end of the suction cup connecting piece is fixedly connected with the lower end of the vacuum suction cup, an adsorption end face is arranged at the upper end of the vacuum suction cup, and a mechanical arm quick-change connector assembly is arranged between the suction cup connecting piece and the transfer mechanical arm. The air channel of the suction end face of the vacuum suction cup is communicated with a mechanical arm air pump sequentially through the suction cup connecting piece and the mechanical arm quick-change connector assembly from top to bottom. The invention is used for precise workpiece transfer.

Description

Technical Field

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

[0002] With the continuous development of social economy and the increasing requirements for product quality, the requirements for ultra-precision machining technology are constantly increasing. At present, with the increasing requirements for the surface machining quality of workpieces, the damage of workpieces during the transportation process in different processes cannot be ignored. At present, traditional transportation methods inevitably damage the surface quality of workpieces. At the same time, after transportation, they need to be repositioned and adjusted on the new processing platform, which reduces the processing efficiency.

[0003] In view of the existing transfer problem, the present invention uses a vacuum suction cup to hold the workpiece throughout the entire process, ensuring that there is no contact with the workpiece during the transfer process, thereby not damaging the surface of the workpiece. 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 comprises 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 mechanical arm quick-change connector assembly and a loading quick-change connector assembly, wherein 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 part of the zero-point locator, the suction cup connector is connected to the zero-point locator base through 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 an adsorption end face is arranged at the upper end of the vacuum suction cup. The air pipe quick connector is arranged on one side of the zero point locator base and is connected to an external air pump. The airway of the adsorption end face of the vacuum suction cup 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 robot arm quick-change connector assembly is arranged between the suction cup connector and the transfer robot arm. The airway of the adsorption end face of the vacuum suction cup is connected to the robot arm air pump through the suction cup connector and the robot arm quick-change connector assembly from front to back.

[0007] Furthermore, the cargo quick-change connector assembly includes a cargo quick connector male head and a cargo quick connector female head, the cargo quick connector male head is fixedly connected to the middle part of the lower end surface of the suction cup connector, the cargo quick connector female head is fixedly connected to the middle part of the upper end surface of the zero point locator base, and the cargo quick connector male head and the cargo 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 outer side of the boss, and the female head of the object carrier quick connector is fixedly connected to the middle of the upper end surface of the boss.

[0009] Furthermore, the zero-point locator is 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 connecting piece, a carrier quick connector male mounting groove is provided in the middle of the lower end surface of the suction cup connecting piece, the carrier quick connector male head is threadedly connected in the carrier quick connector male head mounting groove, the upper end of the connecting chamber is connected with the airway of the vacuum suction cup adsorption end surface, the lower end of the connecting chamber is connected with 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, 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 in the carrier quick connector female head mounting groove, the upper end of the base chamber is connected with the carrier quick connector female head through the carrier quick connector female head mounting groove, and one side of the base chamber is connected with 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 in the robotic arm quick connector female head mounting groove, and 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, and 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 in 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, and sealing rings are provided between the male head of the loading quick connector and the male head mounting groove of the loading quick connector, between the female head of the loading quick connector and the female head mounting groove of the loading quick connector, between the female head of the robotic arm quick connector and the female head mounting groove of the robotic arm quick connector, and between the male head of the robotic arm quick connector and the male head mounting groove of the robotic arm quick connector.

[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 during the in-situ suction of the workpiece, and evacuates the vacuum cup through an external air pump to fix the workpiece. 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 mechanical arm, and the vacuum cup is evacuated through the vacuum air circuit on the mechanical arm, so that the workpiece is still fixed on the vacuum cup during the transportation process, and the posture remains unchanged. The mechanical 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 transportation process. When the workpiece is transported to the platform of the next process, the positioning effect of the zero-point locator is used to make the posture of the workpiece consistent with that of the previous process. The present invention realizes that the workpiece is non-contacted throughout the transportation process, the surface of the workpiece is not damaged, and the processing accuracy is improved. 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, and there is no need to position it again, 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 It is a schematic diagram of an exploded upward structure of a vacuum-maintained precision transfer device of the present invention;

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

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

[0022] Figure 5 It is a 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-carrier quick connector male mounting slot; 34-robot arm quick connector female mounting slot; 41-chassis; 42-tray; 43-limiting groove; 91-boss; 92-carrier 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 in conjunction with 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 Describe 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 mechanical 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 the loading quick-change connector assembly, and the suction cup connector 3 The upper end is fixedly connected to the lower end of the vacuum suction cup 2, and an adsorption end face is arranged at the upper end of the vacuum suction cup 2. The trachea quick connector 10 is arranged 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 in sequence from front to back. A robot arm quick-change connector assembly is arranged between the suction cup connector 3 and the transfer robot arm 12. The airway of the adsorption end face of the vacuum suction cup 2 is connected to the robot arm air pump through the suction cup connector 3 and the robot arm quick-change connector assembly in sequence 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 surface of the suction cup is processed to ensure adsorption capacity, ensuring that the workpiece can be firmly adsorbed in the 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 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 the transfer process, reducing the processing deviation caused by positioning error;

[0031] Cargo 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] Robot arm quick connector assembly: adopts quick connection technology to make the gas circuit connection more convenient, and the robot arm can quickly and accurately clamp the suction cup connector 3;

[0034] Gas pipe quick connector 10: ensure the sealing and stability of the gas line 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 positioner base 9 .

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

[0039] Specific implementation method three: Combination Figures 1 to 6 To explain 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 outer side of the boss, and the carrier quick connector female head 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 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 and separated from the chassis 41. The chassis 41 is fixedly connected to the upper end of the zero point locator base 9, and the tray 42 is fixedly connected 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 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 explain this embodiment, a plurality of magnets 7 are evenly distributed and fixed to the outer side of the boss 91 in the embodiment 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 absorb the tray assembly of the zero point locator 4 using the magnetic attraction of the magnets 7, 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 explain this embodiment, a limiting protrusion 31 is provided on the lower end surface of the suction cup connector 3 of 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 robot arm quick-change connector assembly described in this embodiment includes a robot arm quick connector male head 13 and a robot arm quick connector female head 11. The robot arm quick connector male head 13 is fixedly connected to the inner side of a clamping arm of a transfer robot arm 12, and the robot arm quick connector female head 11 is fixedly connected to one side of the side wall of the suction cup connector 3. The robot arm quick connector male head 13 and the robot 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 robot 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 robot arm 12.

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

[0054] Specific implementation method eight: Combination Figures 1 to 6 To illustrate this embodiment, a connecting chamber 32 is provided in the middle of the suction cup connector 3 in this embodiment, a carrier quick connector male head mounting groove 33 is provided in the middle of the lower end surface of the suction cup connector 3, and the carrier quick connector male head 5 is threadedly connected in the carrier quick connector male head mounting groove 33. The upper end of the connecting chamber 32 is communicated with the airway of the adsorption end surface of the vacuum suction cup 2, and the lower end of the connecting chamber 32 is communicated with 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 in the carrier quick connector female head mounting groove 92, and the upper end of the base chamber 93 is communicated with 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 such a design, when the workpiece 1 is fixed, the gas between the adsorption end surface of the vacuum suction cup 2 and the workpiece 1 is discharged by the external air pump after passing through the air passage of the adsorption end surface of the vacuum suction cup 2, the connecting chamber 32, the carrier quick connector male mounting groove 33, the carrier quick connector male head 5, the carrier quick connector female head 6, the carrier quick connector female mounting groove 92, the base chamber 93, and the air pipe quick connector 10.

[0057] Specific implementation method nine: Combination Figures 1 to 6To illustrate this embodiment, a robot arm quick connector female head mounting groove 34 is provided on one side of the suction cup connector 3, and the robot arm quick connector female head 11 is threadedly connected in the robot arm quick connector female head mounting groove 34. One side of the connecting chamber 32 is communicated with the robot arm quick connector female head 11 through the robot arm quick connector female head mounting groove 34. A robot arm quick connector male head mounting groove 14 is provided on the inner side surface of a clamping arm of the robot arm 12, and the robot arm quick connector male head 13 is threadedly connected in the robot 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 such a 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 by the robot arm air pump after passing through the air channel of the adsorption end surface of the vacuum suction cup 2, 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.

[0060] Specific implementation method ten: Combination Figures 1 to 6 To illustrate this embodiment, sealing rings are 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, and sealing rings are 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 positioner 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 by 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 by M5 bolts. The bottom of the suction cup connector 3 has a square limit protrusion 31, which can cooperate with the limit 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 head mounting groove 34, which fixes a normally closed mechanical arm quick connector female head 11. At the same time, the center of its bottom also has a carrier quick connector male head mounting groove 33, which fixes the carrier quick connector male head 5. The zero point locator base 9 has eight through holes in a circular array, and the carrier 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, and then pass through the through holes of the zero point locator base 9 to connect with the bolt holes of the carrier platform 8. A loading quick connector female mounting groove 92 is provided on the upper portion of the zero point locator base 9, which can fix the loading quick connector female head 6. The loading quick connector female head 6 can be connected to the loading quick connector male head 5 at the bottom of the suction cup connector 3. The side wall of the zero point locator base 9 also has a hole for fixing the trachea threaded connector 10.

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

[0069] Step 1: Pretreatment: Before starting the processing, inflate the zero point locator 4 to ensure that the zero point locator 4 can fix the suction cup connector 3, and then connect the suction cup connector 3 to the zero point locator base 9 through the carrier quick connector male head 5 and the carrier quick connector female head 6, and use an external air pump to evacuate the vacuum suction 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 with the male quick connector 13 of the transfer robot arm 12 to perform vacuuming, and then cut off the air 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 contactless transfer of the workpiece 1 is realized, avoiding any damage to the surface of the workpiece 1;

[0073] Step 5, positioning and handover: After the workpiece 1 is transferred to the next process platform, the precise positioning function of the zero-point locator 4 is used to ensure that the workpiece 1 is in the same position as the previous process. The zero-point locator 4 is inflated to fix the entire device. At this time, the suction cup connector 3 is connected to the male quick connector 5 and the female quick connector 6 of the zero-point locator base 9 to perform vacuuming. Then release the transport robot arm 12, disconnect the male quick connector 13 of the robot arm from the female quick connector 11 of the suction cup connector 3 to achieve seamless docking.

[0074] Through the above-mentioned transfer method, the present invention has the following advantages in 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: Relying on the high repeatability of the zero-point positioner, the workpiece can be transferred between different processes without secondary clamping, thus improving the 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 vacuum suction cup 2 adsorption end face, and the end face of the vacuum suction cup 2 is blown clean to ensure the stability of the adsorption of the workpiece 1.

[0080] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A vacuum-maintained precision transfer device, characterized in that: The invention comprises a vacuum suction cup (2), a suction cup connecting piece (3), a zero point locator (4), a loading platform (8), a zero point locator base (9), an air pipe quick connector (10), a mechanical 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 connecting piece (3) is fixedly connected to the upper part of the zero point locator (4), the suction cup connecting piece (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 connecting piece (3) is fixedly connected to the upper end of the vacuum suction cup (2). The lower end is fixedly connected, and the upper end of the vacuum suction cup (2) is provided with a suction end face. The air pipe quick connector (10) is provided on one side of the zero point locator base (9) and is connected to an external air pump. The air passage of the suction end face of the vacuum suction cup (2) is connected to the external air pump through the suction cup connector (3), the quick connector assembly, the zero point locator base (9) and the air pipe quick connector (10) in sequence from front to back. A mechanical arm quick connector assembly is provided between the suction cup connector (3) and the transfer mechanical arm (12). The air passage of the suction end face of the vacuum suction cup (2) is connected to the mechanical arm air pump through the suction cup connector (3) and the mechanical arm quick connector assembly in sequence from front to back.

2. A vacuum-maintained precision transfer device according to claim 1, characterized in that: The cargo quick-change connector assembly comprises a cargo quick-change connector male head (5) and a cargo quick-change connector female head (6). The cargo quick-change connector male head (5) is fixedly connected to the middle part of the lower end surface of the suction cup connector (3), and the cargo quick-change connector female head (6) is fixedly connected to the middle part of the upper end surface of the zero point locator base (9). The cargo quick-change connector male head (5) and the cargo quick-change connector female head (6) are plug-connected.

3. A vacuum-maintained precision transfer device according to claim 2, characterized in that: 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 carrier quick connector female head (6) is fixedly connected to the middle of the upper end surface of the boss (91).

4. A vacuum-maintained precision transfer device according to claim 3, characterized in that: The zero point locator (4) is a hollow structure in the axial direction. The zero point locator (4) comprises 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 fixedly connected to the upper end of the zero point locator base (9), and the tray (42) is fixedly connected to the lower end of the suction cup connector (3).

5. A vacuum-maintained precision transfer device according to claim 4, characterized in that: A plurality of magnets (7) are evenly distributed and fixedly connected to the outer side of the boss (91) along the circumferential direction.

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

7. A vacuum-maintained precision transfer device according to claim 3, characterized in that: The robot arm quick-change joint assembly comprises a robot arm quick-change joint male head (13) and a robot arm quick-change joint female head (11); the robot arm quick-change joint male head (13) is fixedly connected to the inner side of a clamping arm of a transfer robot arm (12); the robot arm quick-change joint female head (11) is fixedly connected to one side of a side wall of a suction cup connector (3); and the robot arm quick-change joint male head (13) and the robot arm quick-change joint female head (11) are plug-connected.

8. A vacuum-maintained precision transfer device according to claim 7, characterized in that: A connecting chamber (32) is provided in the middle of the suction cup connecting piece (3), a loading quick connector male head mounting groove (33) is provided in the middle of the lower end surface of the suction cup connecting piece (3), 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), 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), 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 air pipe quick connector (10).

9. A vacuum-maintained precision transfer device according to claim 8, characterized in that: A mechanical arm quick connector female head mounting groove (34) is provided on one side of the suction cup connector (3), and the mechanical arm quick connector female head (11) is threadedly connected in the mechanical arm quick connector female head mounting groove (34). One side of the connection chamber (32) is connected to the mechanical arm quick connector female head (11) through the mechanical arm quick connector female head mounting groove (34). A mechanical arm quick connector male head mounting groove (14) is provided on the inner side surface of a clamping arm of the mechanical arm (12), and the mechanical arm quick connector male head (13) is threadedly connected in the mechanical arm quick connector male head mounting groove (14).

10. A vacuum-maintained precision transfer device according to claim 9, 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 locator base (9) and the upper end surface of the object loading platform (8). A sealing ring is provided between the object loading quick connector male head (5) and the object loading quick connector male head mounting groove (33), between the object loading quick connector female head (6) and the object 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).

Images