Electrically driven flexible suction cup

Abstract

The utility model discloses a kind of electric drive flexible sucking disc, including cover, adapter plate, vacuum adsorption component, vacuum generating unit and electric drive adjusting unit, adapter plate is fixedly connected with cover, the drive several vacuum generating units synchronous rotation of electric drive adjusting unit is unfolded or retracted, vacuum adsorption component is connected to vacuum generating unit by pipeline. The same electric drive flexible sucking disc can suck workpieces of different sizes, reducing the need for different size suction tools, and having the advantage of strong versatility. The time for switching suction tools is avoided, indirectly improving the production capacity of the production enterprise site. The number of spare parts for the suction tool can also be reduced, reducing the maintenance cost of the user. The main body has a vacuum generating unit, reducing the cost of air piping, reducing labor costs, and being more aesthetically pleasing.

Description

Technical Field

[0001] This utility model belongs to the field of automated vacuum handling, and in particular relates to an electrically driven flexible suction cup. Background Technology

[0002] The demand for vacuum in the field of automation is increasing, including many material handling applications. Customers often need to use the same set of robotic arms to handle different types of workpieces.

[0003] The same set of grippers is often designed for a specific machine. When gripping different workpieces, it is often necessary to find common points between the different workpieces to achieve compatibility. If there are no common points, the gripper needs to be switched, which increases costs. At the same time, switching grippers will also reduce the cycle time and affect output.

[0004] Meanwhile, most end-point vacuum cleaners on the market currently rely on external vacuum sources, requiring associated piping, which increases the workload during installation, affects the aesthetics of the equipment, and makes maintenance more troublesome. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide an adjustable electrically driven flexible chuck with a wide range of applications.

[0006] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: an electrically driven flexible suction cup, comprising a cover plate, a connecting plate, a vacuum adsorption assembly, a vacuum generating unit, and an electrically driven adjustment unit. The connecting plate is fixedly connected to the cover plate. The vacuum generating unit and the electrically driven adjustment unit are both fixedly mounted on the connecting plate. Several vacuum generating units are arranged in a ring array and rotated on the cover plate. The electrically driven adjustment unit drives several vacuum generating units to rotate synchronously to expand or retract. The vacuum adsorption assembly is connected to the vacuum generating unit through a pipeline.

[0007] Preferably, the vacuum adsorption assembly consists of a mechanical gear arm and suction cups, and the electric drive adjustment unit consists of a drive motor and a first cylindrical spur gear. The inner end of the mechanical gear arm is provided with transmission teeth that mesh with the first cylindrical spur gear. Several suction cups are fixedly mounted on the mechanical gear arm and connected to the vacuum generating unit through pipelines. The first cylindrical spur gear is rotatably mounted on the adapter plate. The output shaft of the drive motor is connected to the first cylindrical spur gear. The lower part of the first cylindrical spur gear rotates through the cover plate, and the transmission teeth of the several mechanical gear arms mesh with the first cylindrical spur gear.

[0008] Preferably, a second cylindrical spur gear is fixedly mounted on the output shaft of the drive motor, and the second cylindrical spur gear meshes with the first cylindrical spur gear for transmission.

[0009] Preferably, the first cylindrical spur gear is rotatably mounted at the center of the adapter plate by a first equal-height screw. The bottom of the first cylindrical spur gear is provided with a countersunk hole, and the first equal-height screw is located in the countersunk hole of the first cylindrical spur gear.

[0010] Preferably, the device also includes a guide sleeve and a second equalizing screw. The mechanical gear arm consists of an outer shell and a cover. The outer shell has a cavity structure with a top opening. The cover is fixedly installed on the top of the outer shell and seals the top opening of the cavity structure. The guide sleeve is fixedly installed on the cover plate. A sliding sleeve is fixedly installed inside the mechanical gear arm. The bottom of the sliding sleeve has a limiting plate. The sliding sleeve is rotatably fitted onto the guide sleeve. The second equalizing screw slides through the guide sleeve and is screwed and fixedly installed on the adapter plate. The second equalizing screw and the guide sleeve lock and fix the limiting plate at the bottom of the sliding sleeve.

[0011] Preferably, the negative pressure tube of the suction cup is sealed and fixedly installed inside the cavity structure, and a negative pressure connector connected to the cavity structure is sealed and fixedly installed on the cover. The negative pressure connector is connected to the vacuum generating unit through a pipeline.

[0012] Preferably, the top surface of the outer casing and the top surface of the sliding sleeve are respectively provided with a first sealing groove and a second sealing groove, and the first sealing strip and the second sealing strip are respectively embedded in the first sealing groove and the second sealing groove.

[0013] Preferably, the vacuum adsorption components are arranged in a ring array of four groups.

[0014] Preferably, the cover plate and the adapter plate are provided with a first arc groove and a second arc groove respectively, and the negative pressure connector is slidably placed in the first arc groove and the second arc groove.

[0015] Preferably, the adapter plate is fixedly mounted with a protective shell.

[0016] Compared with the prior art, the advantages of this utility model are:

[0017] 1. It enables the same electrically driven flexible suction cup to pick up workpieces of different sizes, reducing the need for a number of suction cups of different sizes and having the advantage of strong versatility.

[0018] 2. It avoids the time spent switching suction devices, indirectly increasing the production capacity of the manufacturing enterprise.

[0019] 3. The number of spare parts for the suction cup can also be reduced, thus lowering the user's maintenance costs.

[0020] 4. The main body has a built-in vacuum generation unit, which reduces the cost of laying gas pipelines and construction labor costs, and is also more aesthetically pleasing. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Figure 1 This is a perspective view of the utility model from the top.

[0023] Figure 2 This is a perspective view of the bottom of this utility model.

[0024] Figure 3 This is a perspective view of the present invention without the protective casing installed.

[0025] Figure 4 This is a three-dimensional view of the installation structure of the first cylindrical spur gear.

[0026] Figure 5 This is a bottom view of the present invention.

[0027] Figure 6 This is a 3D view of the vacuum adsorption component.

[0028] Figure 7 This is a diagram of the internal structure of a vacuum adsorption component. Detailed Implementation

[0029] The present invention will now be described in detail with reference to specific embodiments:

[0030] like Figures 1 to 7 The electrically driven flexible suction cup shown includes a cover plate 1, a connecting plate 2, a vacuum adsorption assembly, a vacuum generating unit 4, and an electrically driven adjustment unit. The connecting plate 2 is fixedly connected to the cover plate 1. The vacuum generating unit 4 and the electrically driven adjustment unit are both fixedly mounted on the connecting plate 2. Several vacuum generating units 4 are arranged in a ring array and rotated on the cover plate 1. The electrically driven adjustment unit drives several vacuum generating units 4 to rotate synchronously to expand or retract. The vacuum adsorption assembly is connected to the vacuum generating unit 4 through a pipeline.

[0031] The vacuum adsorption assembly consists of a mechanical gear arm 31 and suction cups 30. The electric drive adjustment unit consists of a drive motor 5 and a first cylindrical spur gear 7. The inner end of the mechanical gear arm 31 is provided with transmission teeth 35 that mesh with the first cylindrical spur gear 7. Several suction cups 30 are fixedly installed on the mechanical gear arm 31 and connected to the vacuum generating unit 4 through pipelines. The first cylindrical spur gear 7 is rotatably installed on the adapter plate 2. The output shaft of the drive motor 5 is connected to the first cylindrical spur gear 7. The lower part of the first cylindrical spur gear 7 rotates through the cover plate 1. The transmission teeth 35 of the several mechanical gear arms 31 mesh with the first cylindrical spur gear 7. The output shaft of the drive motor 5 drives the first cylindrical spur gear 7 to rotate. The first cylindrical spur gear 7 drives the mechanical gear arm 31 to rotate synchronously in the same direction, realizing the expansion or retraction of the mechanical gear arm 31 and suction cup 30 assembly.

[0032] A second cylindrical spur gear is fixedly mounted on the output shaft of the drive motor 5. The second cylindrical spur gear meshes with the first cylindrical spur gear 7 for transmission. By setting the second cylindrical spur gear, the drive motor 5 can be installed at a non-central position on the adapter plate 2, leaving an installation position for the vacuum generating unit 4, making the structure of the electric drive flexible chuck more compact.

[0033] The first cylindrical spur gear 7 is rotatably mounted at the center of the adapter plate 2 via the first equal-height screw 8. The bottom of the first cylindrical spur gear 7 is provided with a countersunk hole, and the first equal-height screw 8 is located in the countersunk hole of the first cylindrical spur gear 7. That is, the first cylindrical spur gear 7 is rotatably mounted on the first equal-height screw 8, and the first cylindrical spur gear 7 can rotate under the driving action of the drive motor 5.

[0034] It also includes a guide sleeve 33 and a second equalizing screw 34. The mechanical gear arm 31 consists of a housing 310 and a cover 32. The housing 310 has a cavity structure 311 with a top opening. The cover 32 is fixedly installed on the top of the housing 310, sealing the top opening of the cavity structure 311. The guide sleeve 33 is fixedly installed on the cover plate 1. A sliding sleeve 36 is fixedly installed inside the mechanical gear arm 31. The bottom of the sliding sleeve 36 has a limiting plate. The sliding sleeve 36 is rotatably sleeved on the guide sleeve. On the positive sleeve 33, the second equalization screw 34 slides through the guide sleeve 33 and is screwed and fixedly installed on the adapter plate 2. The second equalization screw 34 and the guide sleeve 33 lock and fix the limiting plate at the bottom of the sliding sleeve 36. After loosening the second equalization screw 34, the outer shell 310 and its sliding sleeve 36 can rotate around the guide sleeve 33 under the drive of the electric drive adjustment unit. After adjusting the mechanical gear arm 31 to the preset position, the electric drive adjustment unit stops moving. Tighten the second equalization screw 34 to lock and fix the outer shell 310.

[0035] The negative pressure tube 301 of the suction cup 30 is sealed and fixedly installed inside the cavity structure 311. The cover 32 is sealed and fixedly installed with a negative pressure connector 6 that is connected to the cavity structure 311. The negative pressure connector 6 is connected to the vacuum generating unit 4 through a pipeline, so as to achieve the purpose of connecting multiple suction cups 30 of the vacuum adsorption assembly with one pipeline and one negative pressure connector 6, which can simplify the pipeline distribution.

[0036] The top surface of the outer shell 310 and the top surface of the sliding sleeve 36 are respectively provided with a first sealing groove 312 and a second sealing groove 361. The first sealing groove 312 and the second sealing groove 361 are respectively embedded in the first sealing strip and the second sealing strip. The cover 32 presses against the first sealing strip and the second sealing strip, which can ensure the airtightness of the cavity structure 311 and avoid air leakage.

[0037] As a preferred number of vacuum adsorption components, four groups of vacuum adsorption components are arranged in a ring array. Each group of vacuum adsorption components is equipped with three suction cups 30, which can both increase the number of suction cups 30 and avoid interference between the inner ends of the vacuum adsorption components.

[0038] The cover plate 1 and the adapter plate 2 are respectively provided with a first arc groove 11 and a second arc groove 21. The negative pressure connector 6 is slidably placed in the first arc groove 11 and the second arc groove 21. The first arc groove 11 and the second arc groove 21 are set with the central axis of the guide sleeve 33 as the center. When the mechanical gear arm 310 drives the negative pressure connector 6 to rotate synchronously, the negative pressure connector 6 rotates in the corresponding set of the first arc groove 11 and the second arc groove 21.

[0039] The adapter plate 2 is fixedly installed with a protective shell 9, which provides an anti-slip effect for the internal components of the protective shell 9.

[0040] Vacuum generation unit 4 provides a vacuum source for a 24V DC vacuum pump with a flow rate of 26L / min and a negative pressure of -88KPa. The suction cup 30 has a diameter of 30mm. The negative pressure generated by the DC vacuum pump reaches the suction cup 30 through the negative pressure pipeline in the mechanical gear arm 31. When the suction cup 30 is in close contact with the workpiece, it can pick up the workpiece. The generation and stopping of the negative pressure are controlled by controlling the DC vacuum pump. The drive motor 5 is a servo motor. The servo motor receives position commands from the control system via RS485 communication, causing the robotic arm to reach the specified extended or retracted position. Specifically, the drive motor 5 drives the second spur gear to rotate, which in turn drives the first spur gear 7 to rotate. The first spur gear 7 then drives all mechanical gear arms 31 to extend or retract to the specified position via the transmission gear 35.

Claims

1. An electrically driven flexible chuck, characterized in that: It includes a cover plate (1), a connecting plate (2), a vacuum adsorption assembly, a vacuum generating unit (4), and an electric drive adjustment unit. The connecting plate (2) is fixedly connected to the cover plate (1). The vacuum generating unit (4) and the electric drive adjustment unit are both fixedly installed on the connecting plate (2). Several vacuum generating units (4) are arranged in a ring array and rotated on the cover plate (1). The electric drive adjustment unit drives several vacuum generating units (4) to rotate synchronously to expand or retract. The vacuum adsorption assembly is connected to the vacuum generating unit (4) through a pipeline.

2. The electrically driven flexible chuck according to claim 1, characterized in that: The vacuum adsorption assembly consists of a mechanical gear arm (31) and a suction cup (30). The electric drive adjustment unit consists of a drive motor (5) and a first cylindrical spur gear (7). The inner end of the mechanical gear arm (31) is provided with a transmission tooth (35) that meshes with the first cylindrical spur gear (7). Several suction cups (30) are fixedly installed on the mechanical gear arm (31). Several suction cups (30) are connected to the vacuum generating unit (4) through pipelines. The first cylindrical spur gear (7) is rotatably installed on the adapter plate (2). The output shaft of the drive motor (5) is connected to the first cylindrical spur gear (7) for transmission. The lower part of the first cylindrical spur gear (7) rotates through the cover plate (1). The transmission teeth (35) of several mechanical gear arms (31) mesh with the first cylindrical spur gear (7) for transmission.

3. The electrically driven flexible chuck according to claim 2, characterized in that: A second cylindrical spur gear is fixedly installed on the output shaft of the drive motor (5), and the second cylindrical spur gear meshes with the first cylindrical spur gear (7) for transmission.

4. The electrically driven flexible chuck according to claim 2, characterized in that: The first cylindrical spur gear (7) is rotatably mounted at the center of the adapter plate (2) by the first equal height screw (8). The bottom of the first cylindrical spur gear (7) is provided with a countersunk hole, and the first equal height screw (8) is located in the countersunk hole of the first cylindrical spur gear (7).

5. The electrically driven flexible chuck according to claim 2, characterized in that: It also includes a guide sleeve (33) and a second equalizing screw (34). The mechanical gear arm (31) is composed of an outer shell (310) and a cover (32). The outer shell (310) is provided with a cavity structure (311) with a top opening. The cover (32) is fixedly installed on the top of the outer shell (310). The cover (32) seals the top opening of the cavity structure (311). The guide sleeve (33) is fixedly installed on the cover plate (1). A sliding sleeve (36) is fixedly installed inside the mechanical gear arm (31). The bottom of the sliding sleeve (36) has a limiting plate. The sliding sleeve (36) is rotatably sleeved on the guide sleeve (33). The second equalizing screw (34) slides through the guide sleeve (33) and is screwed and fixedly installed on the adapter plate (2). The second equalizing screw (34) and the guide sleeve (33) lock and fix the limiting plate at the bottom of the sliding sleeve (36).

6. The electrically driven flexible chuck according to claim 5, characterized in that: The negative pressure tube (301) of the suction cup (30) is sealed and fixedly installed inside the cavity structure (311). The cover (32) is sealed and fixedly installed with a negative pressure connector (6) that communicates with the cavity structure (311). The negative pressure connector (6) is connected to the vacuum generating unit (4) through a pipeline.

7. The electrically driven flexible chuck according to claim 4, characterized in that: The top surface of the outer shell (310) and the top surface of the sliding sleeve (36) are respectively provided with a first sealing groove (312) and a second sealing groove (361), and the first sealing groove (312) and the second sealing groove (361) are respectively embedded in the first sealing strip and the second sealing strip.

8. The electrically driven flexible chuck according to claim 1, characterized in that: The vacuum adsorption components are arranged in a ring array with four groups.

9. The electrically driven flexible chuck according to claim 5, characterized in that: The cover plate (1) and the adapter plate (2) are respectively provided with a first arc groove (11) and a second arc groove (21), and the negative pressure connector (6) is slidably placed in the first arc groove (11) and the second arc groove (21).

10. The electrically driven flexible chuck according to claim 1, characterized in that: The adapter plate (2) is fixedly installed with a protective shell (9).

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