Suction device

Abstract

The utility model discloses a suction device which comprises a shell, a first servo motor, a lead screw nut mechanism, a sliding frame, a second servo motor and a rotating shaft. Wherein the first servo motor is arranged in the shell; the output end of the first servo motor is connected with a lead screw of the lead screw nut mechanism. The sliding frame is arranged in the shell and connected with a nut of the lead screw nut mechanism. The upper end of the sliding frame is slidably connected with the shell, and a first cavity is formed in the lower end of the sliding frame and connected with an external vacuum pump. The second servo motor is fixedly connected with the lower end of the sliding frame and can move along with the sliding frame; the rotating shaft is arranged in the first cavity, the two ends of the first cavity are sealed, a second cavity is formed in one end of the rotating shaft, and the first cavity is communicated with the second cavity; the output end of the second servo motor is connected with the other end of the rotating shaft. The suction device can do linear motion, rotary motion and suction motion, is small in overall size due to the integrated design, and is suitable for a narrow space of a working scene.

Description

Technical Field

[0001] The utility model relates to the technical field of sheet grabbing, in particular to a suction device. Background Art

[0002] In the prior art, when grabbing sheet objects such as chips, a linear module is often used to drive an adsorption mechanism for adsorption. However, the existing linear module is relatively large in size and not suitable for operation in a narrow space. In addition, the adsorption mechanism cannot rotate after adsorbing the chip. Summary of the Invention

[0003] According to an embodiment of the present utility model, a suction device is provided, comprising:

[0004] A housing;

[0005] A first servo motor, which is arranged inside the housing;

[0006] A lead screw nut mechanism, the output end of the first servo motor is connected to the lead screw of the lead screw nut mechanism, and can drive the lead screw to rotate;

[0007] A sliding frame, which is arranged inside the housing, connected to the nut of the lead screw nut mechanism, and can move together with the nut; the upper end of the sliding frame is slidably connected to the housing, and the lower end is provided with a first cavity, and the first cavity is connected to an external vacuum pump;

[0008] A second servo motor, which is fixedly connected to the lower end of the sliding frame and can move with the sliding frame;

[0009] A rotating shaft, which is arranged inside the first cavity, and both ends of the first cavity are sealed. One end of the rotating shaft is provided with a second cavity, and the first cavity is communicated with the second cavity; the output end of the second servo motor is connected to the other end of the rotating shaft and can drive the rotating shaft to rotate.

[0010] Further, the upper end of the sliding frame is slidably connected to the housing through a slide rail, and the sliding frame can slide along the slide rail.

[0011] Further, the lead screw of the lead screw nut mechanism is integrally formed with the drive shaft of the first servo motor.

[0012] Further, a first strip-shaped hole is provided at the lower end of the housing, and the vacuum tube of the external vacuum pump passes through the first strip-shaped hole and is communicated with the first cavity.

[0013] Further, a guiding step is arranged inside the housing, and the guiding step is coupled with and slidably connected to the lower end of the sliding frame.

[0014] Further, it further includes: a sensor and a rotating disk; the rotating disk is sleeved on the rotating shaft and can rotate with the rotating shaft, and an opening is provided on one side of the rotating disk; the sensor is matched with the rotating disk and is used to detect the rotation angle of the rotating disk.

[0015] Further, a placement groove is provided at the lower end of the sliding carriage, and the sensor and the rotating disk are arranged in the placement groove.

[0016] According to the suction device of the embodiment of the present invention, linear motion, rotational motion and suction action can be performed. The integrated design makes the overall volume small, which is suitable for narrow spaces in the working scenario.

[0017] It is to be understood that both the foregoing general description and the following detailed description are exemplary and are intended to provide further explanation of the claimed technology. Description of the Drawings

[0018] Figure 1 It is a schematic diagram of a three-dimensional view according to an embodiment of the present invention;

[0019] Figure 2 It is a schematic diagram of the internal structure according to an embodiment of the present invention;

[0020] Figure 3 It is Figure 2 the right view of

[0021] Figure 4 It is Figure 3 the sectional view taken along the line A-A of

[0022] Figure 5 It is Figure 4 the enlarged view at A of Detailed Embodiment

[0023] Hereinafter, the preferred embodiments of the present invention will be described in detail with reference to the drawings, and the present invention will be further elaborated.

[0024] First, the suction device according to the embodiment of the present invention will be described in conjunction with Figures 1 - 5 which is used for sucking sheet-like objects and has a wide range of application scenarios.

[0025] As Figures 1 - 5 shown, the suction device of the embodiment of the present invention includes:

[0026] a housing 1;

[0027] a first servo motor 2, and the first servo motor 2 is arranged in the housing 1;

[0028] a lead screw nut mechanism 3, and the output end of the first servo motor 2 is connected to the lead screw of the lead screw nut mechanism 3 and can drive the lead screw to rotate;

[0029] The sliding carriage 4 is arranged inside the housing 1, connected to the nut of the lead screw nut mechanism 3, and can move together with the nut; the upper end of the sliding carriage 4 is slidably connected to the housing 1, and the lower end is provided with a first cavity 41, and the first cavity 41 is connected to an external vacuum pump;

[0030] The second servo motor 5 is fixedly connected to the lower end of the sliding carriage 4 and can move with the sliding carriage 4;

[0031] The rotating shaft 6 is arranged inside the first cavity 41, and both ends of the first cavity 41 are sealed by bearings. One end of the rotating shaft 6 is provided with a second cavity 61, and the first cavity 41 is communicated with the second cavity 61; the output end of the second servo motor 5 is connected to the other end of the rotating shaft 6 and can drive the rotating shaft 6 to rotate.

[0032] Furthermore, as Figure 2 shown, in this embodiment, the upper end of the sliding carriage 4 is slidably connected to the housing 1 through a slide rail, and the sliding carriage 4 can slide along the slide rail.

[0033] Furthermore, as Figure 4 shown, in this embodiment, the lead screw of the lead screw nut mechanism 3 is integrally formed with the drive shaft of the first servo motor 2, reducing the use of a coupling.

[0034] Furthermore, as Figure 1 shown, in this embodiment, the lower end of the housing 1 is provided with a first strip-shaped hole 11, and the vacuum tube of the external vacuum pump passes through the first strip-shaped hole 11 and is communicated with the first cavity 41. The first strip-shaped hole 11 prevents the vacuum tube from interfering with the housing 1 when the sliding carriage 4 moves.

[0035] Furthermore, as Figure 2 shown, in this embodiment, a guiding step 12 is arranged inside the housing 1. The guiding step 12 is coupled with and slidably connected to the lower end of the sliding carriage 4, further guiding and limiting the sliding carriage 4.

[0036] Furthermore, as Figure 2 、 4 shown, in this embodiment, it further includes: a sensor 8 and a rotating disk 9; the rotating disk 9 is sleeved on the rotating shaft 6 and can rotate with the rotating shaft 6. An opening 91 is arranged on one side of the rotating disk 9; the sensor 8 is matched with the rotating disk 9 and is used to detect the rotation angle of the rotating disk 9.

[0037] Furthermore, as Figure 2 shown, in this embodiment, a placement groove 42 is arranged at the lower end of the sliding carriage 4, and the sensor 8 and the rotating disk 9 are arranged inside the placement groove 42.

[0038] Working principle: When in use, the rotating shaft 6 is vertically downward. The first servo motor 2 drives the lead screw nut mechanism 3 to move. The nut drives the sliding carriage 4 to move downward, and the sliding carriage 4 drives the rotating shaft 6 to move downward to a specified position. Then, an external vacuum pump works to adsorb the chip at the lower end of the rotating shaft 6. Then, the second servo motor 5 drives the rotating shaft 6 to rotate a specified angle, and the first servo motor 2 operates to raise the rotating shaft 6. Then, the external driving device drives the entire adsorption device to move to the next working station.

[0039] As mentioned above, with reference to Figures 1 - 5 the suction device according to the embodiment of the present invention has been described. It can perform linear motion, rotational motion, and suction action. The integrated design makes the overall volume small, which is suitable for narrow working spaces.

[0040] It should be noted that in this specification, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, the element defined by the statement "comprising..." does not exclude the existence of additional identical elements in the process, method, article or device including the element.

[0041] Although the content of the present invention has been described in detail through the above preferred embodiments, it should be recognized that the above description should not be considered as a limitation of the present invention. After those skilled in the art have read the above content, various modifications and substitutions to the present invention will be obvious. Therefore, the protection scope of the present invention should be defined by the appended claims.

Claims

1. A sucking device, characterized in that, Comprising: A housing; A first servo motor, which is arranged inside the housing; A lead screw nut mechanism, wherein the output end of the first servo motor is connected to the lead screw of the lead screw nut mechanism and can drive the lead screw to rotate; A sliding carriage, which is arranged inside the housing, connected to the nut of the lead screw nut mechanism and can move together with the nut; the upper end of the sliding carriage is slidably connected to the housing, and a first cavity is arranged at the lower end, and the first cavity is connected to an external vacuum pump; A second servo motor, which is fixedly connected to the lower end of the sliding carriage and can move with the sliding carriage; A rotating shaft, which is arranged inside the first cavity, and both ends of the first cavity are sealed. A second cavity is arranged at one end of the rotating shaft, and the first cavity is communicated with the second cavity; the output end of the second servo motor is connected to the other end of the rotating shaft and can drive the rotating shaft to rotate.

2. The sucking device according to claim 1, wherein, The upper end of the sliding carriage is slidably connected to the housing through a slide rail, and the sliding carriage can slide along the slide rail.

3. The suction device according to claim 1, characterized in that, The lead screw of the lead screw nut mechanism is integrally formed with the drive shaft of the first servo motor.

4. The sucking device according to claim 1, characterized in that, A first strip-shaped hole is arranged at the lower end of the housing, and a vacuum tube of the external vacuum pump passes through the first strip-shaped hole and is communicated with the first cavity.

5. The sucking device according to claim 1, characterized in that A guiding step is arranged inside the housing, and the guiding step is coupled with and slidably connected to the lower end of the sliding carriage.

6. The suction device according to claim 1, characterized in that, It further comprises: a sensor and a rotating disk; the rotating disk is sleeved on the rotating shaft and can rotate with the rotating shaft, and an opening is arranged on one side of the rotating disk; the sensor is matched with the rotating disk and is used for detecting the rotation angle of the rotating disk.

7. The sucking device according to claim 6, characterized in that, A placing groove is arranged at the lower end of the sliding carriage, and the sensor and the rotating disk are arranged in the placing groove.

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