Flexible compensator and vacuum suction tool device

Abstract

The utility model relates to the technical field of vacuum chucks, in particular to a flexible compensator and a vacuum sucker device, which are provided with a corrugated pipe, a lower connecting seat and a lower fixing cover, and the top of the corrugated pipe can be connected with a negative pressure air supply pipeline; an annular lower embedding ring is arranged at the bottom of the corrugated pipe; a through lower seat airflow hole is formed in the top surface of the lower connecting seat; the side face of the upper portion of the lower connecting base inclines towards the hole center of the lower base airflow hole to form a conical bearing slope. A through lower cover airflow hole is formed in the top surface of the lower fixed cover; the side wall of the upper portion of the lower fixing cover inclines towards the hole center of the lower cover airflow hole to form an annular lower locking part. The hole wall of the lower portion of the lower cover airflow hole is in threaded connection with the side wall of the lower portion of the lower connecting base. And the lower embedded ring is clamped between the bearing slope surface and the lower locking part. The suction cup has the advantages that excessive distortion of the suction cup caused by angle change between an object and the suction cup is avoided, the object is prevented from falling off, and the suction cup is prevented from being damaged.

Description

Technical Field

[0001] This utility model relates to the field of vacuum suction cup technology, specifically to a flexible compensator and a vacuum suction device. Background Technology

[0002] Vacuum suction cups are widely used in industrial production due to their ability to quickly pick up and release items, and are mainly used in material handling devices.

[0003] Currently, vacuum suction cups are typically connected to a negative pressure air source via pipes. However, in practical applications, this rigid connection often leads to excessive twisting of the suction cup due to changes in the angle between the object and the suction cup, resulting in the object falling or the suction cup being damaged. Furthermore, vacuum suction cups are usually mounted on robotic arms, whose movement trajectories are pre-set. When the height of the object changes slightly, the rigid connection cannot adapt to this change, causing the vacuum suction cup to fail to pick up the object successfully. Utility Model Content

[0004] To address this issue, this utility model provides a flexible compensator, which mainly solves the technical problem that in the existing technology, when a vacuum suction cup is rigidly connected to a negative pressure air source, the suction cup is excessively twisted due to changes in the angle between the item and the suction cup, causing the item to fall or the suction cup to be damaged, and when the height of the item changes slightly, the vacuum suction cup cannot successfully pick up the item.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A flexible compensator includes a bellows, a lower connecting seat, and a lower fixing cover, the top of which can be connected to a negative pressure air supply pipeline. The bellows has an annular lower embedded ring at its bottom. The top surface of the lower connecting seat has a through-hole for airflow. The upper side of the lower connecting seat is inclined towards the center of the lower airflow hole to form a conical bearing slope. The top surface of the lower fixing cover has a through-hole for airflow. The upper sidewall of the lower fixing cover is inclined towards the center of the lower airflow hole to form an annular lower locking portion. The lower wall of the lower airflow hole is threadedly connected to the lower sidewall of the lower connecting seat. The lower embedded ring is clamped between the bearing slope and the lower locking portion.

[0007] Optionally, it also includes an upper connecting seat and an upper fixing cover; the top of the bellows is provided with an annular upper embedded ring; the top surface of the upper connecting seat is provided with a through upper seat airflow hole; the outer diameter of the upper connecting seat decreases from bottom to top to form a support platform and a connecting part; the lower side wall of the connecting part is provided with a lower thread; the top surface of the upper fixing cover is provided with a second upper cover airflow hole; the bottom surface of the upper fixing cover is provided with a third airflow hole communicating with the second upper cover airflow hole; the outer wall of the third airflow hole is an upper locking part; the diameter of the third airflow hole is larger than the outer diameter of the support platform; the inner wall of the second upper cover airflow hole is threadedly connected to the lower thread; the upper embedded ring is clamped between the support platform and the upper locking part.

[0008] Preferably, the upper side of the connecting part extends beyond the airflow hole of the second upper cover, and its side wall is provided with an upper thread.

[0009] Preferably, the top of the second upper cover airflow hole is a first upper cover airflow hole with a diameter larger than that of the second upper cover airflow hole; the stepped surface between the first upper cover airflow hole and the second upper cover airflow hole is a sealing ring placement platform.

[0010] Preferably, the lower airflow hole wall is threaded for threaded connection with the vacuum injection pipe of the vacuum suction cup.

[0011] Preferably, an annular sealing ring placement groove is formed on the bottom surface of the lower connecting seat along the outer periphery of the airflow hole of the lower seat.

[0012] Furthermore, this application also proposes a vacuum suction device, including a flexible compensator and a vacuum suction cup as described above; the vacuum suction cup is fixedly connected to the flexible compensator, and the vacuum injection tube of the vacuum suction cup is connected to the airflow hole of the lower seat of the flexible compensator.

[0013] This utility model has at least the following beneficial effects:

[0014] The device features a corrugated tube with a lower embedded ring at its bottom. A lower connecting seat and a lower fixing cover are then installed, with the lower embedded ring clamped between the bearing slope of the lower connecting seat and the lower locking part of the lower fixing sleeve. In use, the top of the corrugated tube is connected to a negative pressure air supply pipe, and the assembly of the vacuum suction cup, lower connecting seat, and lower fixing cover is connected, allowing the vacuum injection pipe of the vacuum suction cup to communicate with the airflow hole of the lower seat of the flexible compensator. When the vacuum suction cup adsorbs or places items, the corrugated tube absorbs the resulting torque when the angle between the item and the suction cup changes, preventing excessive twisting of the suction cup and effectively protecting it from damage and reducing the risk of items falling. Furthermore, the corrugated tube's excellent elasticity allows it to flexibly adapt to items of different heights when the height of the item changes slightly, ensuring the suction cup can smoothly pick up and place items.

[0015] Therefore, the flexible compensator and vacuum suction device of this utility model have the advantages of avoiding excessive twisting of the suction cup caused by changes in the angle between the object and the suction cup, preventing the object from falling, and preventing damage to the suction cup. Attached Figure Description

[0016] To more clearly illustrate the prior art and the present invention, the accompanying drawings used in the description of the prior art and the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other drawings from the provided drawings without any creative effort.

[0017] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which this utility model can be implemented. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0018] Figure 1 This is a schematic diagram of the structure of a flexible compensator according to the present invention;

[0019] Figure 2 This is an exploded view of a flexible compensator according to the present invention;

[0020] Figure 3 This is a front sectional view of a flexible compensator according to the present invention;

[0021] Figure 4 This is an assembly diagram of the upper connecting seat and the upper fixed cover of a flexible compensator according to this utility model.

[0022] Figure 5 This utility model provides a flexible compensator. Figure 4 A frontal sectional view;

[0023] Figure 6 This is a front sectional view of the upper connecting seat of a flexible compensator according to the present invention;

[0024] Figure 7 This is a front sectional view of the upper fixing cover of a flexible compensator according to the present invention;

[0025] Figure 8 This is an assembly diagram of the lower connecting seat and lower fixing cover of a flexible compensator according to this utility model;

[0026] Figure 9 This utility model provides a flexible compensator. Figure 8 A frontal sectional view;

[0027] Figure 10 This is a front sectional view of the lower connecting seat of a flexible compensator according to the present invention;

[0028] Figure 11 This is a front sectional view of the lower fixing cover of a flexible compensator according to the present invention;

[0029] Figure 12 This is a schematic diagram of the structure of a vacuum suction device according to the present invention.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Bellows; 101. Lower embedded ring; 102. Upper embedded ring; 2. Lower connecting seat; 201. Sealing ring placement groove; 202. Bearing slope; 3. Lower fixing cover; 301. Lower locking part; 4. Upper connecting seat; 401. Bearing platform; 402. Connecting part; 4021. Upper thread; 4022. Lower thread; 5. Upper fixing cover; 501. Upper locking part; 502. Sealing ring placement platform; 6. Vacuum suction cup. Detailed Implementation

[0032] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] In the description of this application: unless otherwise stated, "a plurality of" means two or more. The terms "first," "second," "third," etc., in this application are intended to distinguish the objects referred to and do not have any special meaning in terms of technical connotation (e.g., they should not be construed as an emphasis on importance or order). Expressions such as "comprising," "including," and "having" also mean "not limited to" (certain units, components, materials, steps, etc.).

[0034] The terms used in this application, such as "upper," "lower," "left," "right," and "middle," are generally used to facilitate intuitive understanding by referring to the accompanying drawings, and are not absolute limitations on the positional relationships in the actual product. Changes in these relative positional relationships, without departing from the technical concept disclosed in this application, should also be considered within the scope of this application.

[0035] This utility model provides a flexible compensator, such as... Figures 1 to 11As shown, a bellows 1 is provided, the top of which can be connected to a negative pressure air supply pipeline. A lower connecting seat 2 and a lower fixing cover 3 are also provided. The bottom of the bellows 1 has an annular lower embedded ring 101. The top surface of the lower connecting seat 2 has a through lower airflow hole, and the upper side of the lower connecting seat 2 is inclined towards the center of the lower airflow hole to form a conical bearing slope 202. The top surface of the lower fixing cover 3 has a through lower cover airflow hole, and the upper side wall of the lower fixing cover 3 is inclined towards the center of the lower cover airflow hole to form an annular lower locking part 301. The lower wall of the lower cover airflow hole is threaded to the lower side wall of the lower connecting seat 2, thus clamping the lower embedded ring 101 between the bearing slope 202 and the lower locking part 301. In use, the top of the bellows 1 is connected to the negative pressure air supply pipeline, and the assembly of the vacuum suction cup 6, the lower connecting seat 2, and the lower fixing cover 3 is connected, so that the vacuum injection pipe of the vacuum suction cup 6 is connected to the lower airflow hole of the flexible compensator. When a vacuum suction cup is used to pick up or place an item, the corrugated tube absorbs the resulting torque when the angle between the item and the suction cup changes, preventing excessive twisting of the suction cup and effectively protecting it from damage and reducing the risk of the item falling. Simultaneously, the corrugated tube's excellent flexibility allows it to adapt flexibly to items of different heights when the height of the item changes slightly, ensuring the suction cup can smoothly pick up and place the item.

[0036] Optionally, this application embodiment also provides a preferred structure for connecting the top of the bellows 1 to the negative pressure air supply pipeline, specifically including an upper connecting seat 4 and an upper fixing cover 5. The top of the bellows 1 is provided with an annular upper embedded ring 102. The top surface of the upper connecting seat 4 has a through upper airflow hole, and the outer diameter of the upper connecting seat 4 decreases sequentially from bottom to top to form a support platform 401 and a connecting portion 402. The lower side wall of the connecting portion 402 has a lower thread 4022. The top surface of the upper fixing cover 5 has a second upper cover airflow hole, and the bottom surface of the upper fixing cover 5 has a third airflow hole communicating with the second upper cover airflow hole. The outer wall of the third airflow hole is an upper locking portion 501, and the diameter of the third airflow hole is larger than the outer diameter of the support platform 401. The inner wall of the second upper cover airflow hole is threadedly connected to the lower thread 4022, thus the upper embedded ring 102 is clamped between the support platform 401 and the upper locking portion 501. In use, the assembly of the upper connecting seat 4 and the upper fixed cover 5 is fixed to the negative pressure air supply pipe, and the airflow hole of the second upper cover is connected to the negative pressure air supply pipe.

[0037] Preferably, to facilitate connection with the negative pressure gas supply pipeline, the upper side of the connecting part 402 extends beyond the airflow hole of the second upper cover, and its side wall is provided with an upper thread 4021. In this way, the flexible compensator of this application can be threadedly connected to the negative pressure gas supply pipeline through the upper thread 4021 during use.

[0038] Preferably, in order to achieve a seal when connected to a negative pressure gas supply pipeline, the top of the airflow hole of the second cover is a first cover airflow hole with a diameter larger than that of the second cover airflow hole. The stepped surface between the first cover airflow hole and the second cover airflow hole is a sealing ring placement platform 502. During installation, the sealing ring is embedded into the sealing ring placement platform 502.

[0039] Preferably, to facilitate the installation of the vacuum suction cup, the airflow hole wall of the lower seat is threaded, so that the vacuum injection tube of the vacuum suction cup can be threaded onto the lower connecting seat 2.

[0040] Preferably, in order to achieve a seal during vacuum suction cup installation, an annular sealing ring placement groove 201 is provided on the bottom surface of the lower connecting seat 2 along the outer periphery of the lower seat airflow hole. During installation, the sealing ring is embedded into the sealing ring placement groove 201.

[0041] Furthermore, this application also proposes a vacuum suction device, such as... Figure 12 As shown, it includes any one of the above-mentioned flexible compensators and vacuum suction cup 6. Vacuum suction cup 6 is fixedly connected to the flexible compensator, and the vacuum injection tube of vacuum suction cup 6 is connected to the airflow hole of the lower seat of the flexible compensator.

[0042] The present application has been described in a relatively specific and detailed manner above through general descriptions and specific embodiments. It should be understood that, based on the technical concept of the present application, several conventional adjustments or further innovations can be made to these specific embodiments; however, as long as they do not depart from the technical concept of the present application, the technical solutions obtained by these conventional adjustments or further innovations also fall within the protection scope of the claims of the present application.

Claims

1. A flexible compensator, characterized in that, The device includes a corrugated pipe (1) that can be connected to a negative pressure gas supply pipe at the top, a lower connecting seat (2), and a lower fixing cover (3); the corrugated pipe (1) has an annular lower embedded ring (101) at the bottom; the lower connecting seat (2) has a through lower seat airflow hole on its top surface; the upper side of the lower connecting seat (2) is inclined toward the center of the lower seat airflow hole to form a conical bearing slope (202); the lower fixing cover (3) has a through lower cover airflow hole on its top surface; the upper side wall of the lower fixing cover (3) is inclined toward the center of the lower cover airflow hole to form an annular lower locking part (301); the lower hole wall of the lower cover airflow hole is threaded to the lower side wall of the lower connecting seat (2); the lower embedded ring (101) is clamped between the bearing slope (202) and the lower locking part (301).

2. The flexible compensator according to claim 1, characterized in that, It also includes an upper connecting seat (4) and an upper fixing cover (5); the top of the corrugated pipe (1) is provided with an annular upper embedded ring (102); the top surface of the upper connecting seat (4) is provided with a through upper seat airflow hole; the outer diameter of the upper connecting seat (4) decreases from bottom to top to form a support platform (401) and a connecting part (402); the lower side wall of the connecting part (402) is provided with a lower thread (4022); the top surface of the upper fixing cover (5) is provided with a second upper cover airflow hole; the bottom surface of the upper fixing cover (5) is provided with a third airflow hole that communicates with the second upper cover airflow hole; the outer wall of the third airflow hole is an upper locking part (501); the diameter of the third airflow hole is larger than the outer diameter of the support platform (401); the inner wall of the second upper cover airflow hole is threadedly connected to the lower thread (4022); the upper embedded ring (102) is clamped between the support platform (401) and the upper locking part (501).

3. A flexible compensator according to claim 2, characterized in that, The upper side of the connecting part (402) extends out of the airflow hole of the second upper cover, and its side wall is provided with an upper thread (4021).

4. A flexible compensator according to claim 3, characterized in that, The top of the second cover airflow hole is a first cover airflow hole with a diameter larger than that of the second cover airflow hole; the stepped surface between the first cover airflow hole and the second cover airflow hole is a sealing ring placement platform (502).

5. A flexible compensator according to claim 1, characterized in that, The lower airflow hole wall is threaded for connection with the vacuum injection pipe of the vacuum suction cup.

6. A flexible compensator according to claim 5, characterized in that, The bottom surface of the lower connecting seat (2) is provided with an annular sealing ring placement groove (201) along the outer periphery of the airflow hole of the lower seat.

7. A vacuum suction device, characterized in that, Includes the flexible compensator and vacuum suction cup (6) as described in any one of claims 1 to 6; the vacuum suction cup (6) is fixedly connected to the flexible compensator, and the vacuum injection tube of the vacuum suction cup (6) is connected to the airflow hole of the lower seat of the flexible compensator.

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