Portable vacuum chuck

Abstract

The invention discloses a portable vacuum suction cup in the field of suction cups, which comprises a vacuum suction support piece, a cylindrical bowl and a cylindrical bowl piston arranged between the vacuum suction support piece and the cylindrical bowl, the vacuum suction support piece comprises a support ring, a guide sliding seat, a support rib and a vacuum support inner column bowl, an impact valve is fixedly connected to the middle of the cylindrical bowl piston, a plurality of piston supporting guide rods are fixedly connected to the periphery of an opening of the cylindrical bowl piston, a guide hole is formed in the middle of the guide sliding seat, and the piston supporting guide rods penetrate through the guide hole. Under the action of the soft silica gel adsorption ring, adsorption of a rough surface can be ensured, during adsorption and movement of the power execution part, pressure on the two sides is balanced, needed tension or pressure is smaller, negative pressure does not need to be continuously manufactured, only one-dimensional force is needed, adsorption is conducted forwards, taking-out is conducted backwards, the structure is simple, and operation is convenient. More convenience and practicability are realized.

Description

Technical Field

[0001] The invention relates to the field of suction cups, in particular to a portable vacuum suction cup. Background Art

[0002] Vacuum suction cups, also known as vacuum slings, are one of the actuators of vacuum equipment. Generally speaking, using vacuum suction cups to grab products is the cheapest method. There are various types of vacuum suction cups. Suction cups made of rubber can be operated at high temperatures, suction cups made of silicone rubber are very suitable for grabbing products with rough surfaces; suction cups made of polyurethane are very durable. In addition, in actual production, if the suction cup is required to be oil-resistant, you can consider using materials such as polyurethane, nitrile rubber or vinyl-containing polymers to make the suction cup. Usually, in order to avoid scratches on the surface of the product, it is best to choose a suction cup with a bellows made of nitrile rubber or silicone rubber. The suction cup material is made of nitrile rubber, which has a large tearing force and is therefore widely used in various vacuum holding equipment.

[0003] However, when using the existing suction cup, it is impossible to adsorb on the rough surface, or when adsorbing on the rough surface, it is necessary to continuously generate negative pressure; and when the existing suction cup generates negative pressure, it requires forces in multiple dimensions, such as force perpendicular to the adsorption surface, pressing, and force that makes a 90° circular motion around the center of the suction cup and the contact surface to generate negative pressure. Therefore, those skilled in the art provide a convenient vacuum suction cup to solve the problems raised in the above background technology. Summary of the invention

[0004] The purpose of the present invention is to provide a portable vacuum suction cup to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A portable vacuum suction cup comprises a vacuum support, a cylindrical bowl plate and a cylindrical bowl piston arranged between the vacuum support and the cylindrical bowl plate, the vacuum support comprises a support ring, a guide slide, support ribs and a vacuum support inner cylindrical bowl, an impact valve is fixedly connected to the middle of the cylindrical bowl piston, a plurality of piston support guide rods are fixedly connected to the periphery of the opening of the cylindrical bowl piston, a guide hole is opened in the middle of the guide slide, the piston support guide rod passes through the guide hole, and slides with the guide slide to realize the movable guiding of the cylindrical bowl piston.

[0007] As a further solution of the present invention: a soft silicone adsorption ring is fixedly connected to the periphery of the opening of the cylindrical bowl, and a pressure relief hole is opened on the side wall of the cylindrical bowl.

[0008] As a further solution of the present invention: the guide slide is fixed to the periphery of the vacuum support inner column bowl, the support ribs are fixed to the side walls of the guide slide, and the support ring is integrally formed at the end of the support ribs.

[0009] As a further solution of the present invention: the number of the guide slides is the same as the number of the piston support guide rods, and the guide slides are evenly distributed along the outer circumference of the vacuum support inner column bowl.

[0010] As a further solution of the present invention: the outer wall of the cylindrical bowl piston is slidably and sealedly connected to the inner wall of the cylindrical bowl plate, and the inner wall of the cylindrical bowl piston is slidably and sealedly connected to the outer wall of the vacuum support inner cylindrical bowl in the vacuum support.

[0011] As a further solution of the present invention: the impact valve includes a valve body, a valve stem movably arranged inside the valve body, sealing grooves opened at both ends of the valve body and close to the valve stem, a sealing ring clamped between the sealing groove and the valve stem, a boss integrally formed on the valve stem, a first L-shaped connecting hole opened at one end of the valve stem and the outer circular surface, a second connecting hole opened between the other end of the valve stem and the boss, a sealing sleeve fixed inside the valve body and slidingly sealed with the boss, and a limiting ring fixed on the periphery of the valve stem at the opening of the first connecting hole, the valve stem is slidably and sealingly connected to the valve body.

[0012] As a further solution of the present invention: an annular limit groove is provided on one side of the sealing groove on the valve body, and accommodating cavities are provided at both ends of the valve stem. An elastic clamp that cooperates with the annular limit groove is movably arranged inside the accommodating cavity. The elastic clamp on the left side cooperates with the annular limit groove at the left end when the valve stem is at the leftmost end, and the elastic clamp on the right side cooperates with the annular limit groove at the right end when the valve stem is at the rightmost end.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The present invention can ensure the adsorption of rough surfaces under the action of the soft silicone adsorption ring. Moreover, when the adsorption is performed, the pressure on both sides of the power actuator is balanced when the power actuator moves, and the required pulling force or pressure is smaller. There is no need to continuously create negative pressure. Only one-dimensional force is required, that is, forward when adsorbing and backward when taking out. The structure is simple and more convenient and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention;

[0016] Figure 2 It is a left-side structural diagram of the present invention;

[0017] Figure 3 The explosion of the present invention Figure 1 ;

[0018] Figure 4 The explosion of the present invention Figure 2 .

[0019] Figure 5 It is a cross-sectional view of the power actuator after installation in the present invention;

[0020] Figure 6 It is a cross-sectional view of the impact valve in the closed state of the present invention;

[0021] Figure 7 A cross-sectional view of the impact valve in the present invention in an open state;

[0022] Figure 8 For the present invention Figure 6 A partial enlarged view of point A in the middle.

[0023] In the figure: 1. cylindrical bowl; 101. pressure relief hole; 102. soft silicone adsorption ring; 2. vacuum support; 201. support ring; 202. guide slide; 2021. guide hole; 203. support rib; 204. vacuum support inner column bowl; 3. cylindrical bowl piston; 4. piston support guide rod; 5. impact valve; 501. valve body; 5011. annular limit groove; 502. sealing groove; 503. sealing ring; 504. valve stem; 5041. boss; 5042. accommodating chamber; 5043. elastic clamp; 505. first L-shaped connecting hole; 506. second L-shaped connecting hole; 507. sealing sleeve; 508. limit ring; 6. top plate; 7. power actuator. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] See also Figures 1 to 4 In an embodiment of the present invention, a portable vacuum suction cup includes a vacuum support 2, a cylindrical bowl plate 1 and a cylindrical bowl piston 3 arranged between the vacuum support and the cylindrical bowl plate 1. The vacuum support 2 includes a support ring 201, a guide slide 202, a support rib 203 and a vacuum support inner column bowl 204. A collision valve 5 is fixedly connected to the middle of the cylindrical bowl piston 3. A plurality of piston support guide rods 4 are fixedly connected to the periphery of the opening of the cylindrical bowl piston 3. A guide hole 2021 is opened in the middle of the guide slide 202. The piston support guide rod 4 passes through the guide hole 2021 and slides with the guide slide 202 to realize the movable guiding of the cylindrical bowl piston 3.

[0026] A soft silicone adsorption ring 102 is fixedly connected to the periphery of the opening of the cylindrical bowl 1 , and a pressure relief hole 101 is opened on the side wall of the cylindrical bowl 1 .

[0027] The guide slide 202 is fixed to the periphery of the vacuum support inner column bowl 204 , the support ribs 203 are fixed to the side walls of the guide slide 202 , and the support ring 201 is integrally formed at the end of the support ribs 203 .

[0028] The number of the guide slides 202 is the same as the number of the piston support guide rods 4 , and the guide slides 202 are evenly distributed along the outer circumference of the vacuum support inner column bowl 204 .

[0029] The outer wall of the cylindrical bowl piston 3 is slidably sealed to the inner wall of the cylindrical bowl plate 1 , and the inner wall of the cylindrical bowl piston 3 is slidably sealed to the outer wall of the vacuum support inner cylindrical bowl 204 in the adsorption vacuum support.

[0030] In this embodiment, Figure 6-8 As shown, the impact valve 5 includes a valve body 501, a valve stem 504 movably arranged inside the valve body 501, sealing grooves 502 opened at both ends of the valve body 501 and close to the valve stem 504, a sealing ring 503 clamped between the sealing groove 502 and the valve stem 504, a boss 5041 integrally formed on the valve stem 504, a first L-shaped connecting hole 505 opened at one end of the valve stem 504 and the outer circumferential surface, a second connecting hole 506 opened between the other end of the valve stem 504 and the boss 5041, a sealing sleeve 507 fixed inside the valve body 501 and slidingly sealed with the boss 5041, and a sealing ring 503 fixed on the periphery of the valve stem 504 at The limiting ring 508 at the opening of the first connecting hole 505 and the valve stem 504 are slidably sealedly connected to the valve body 501. After the impact valve 5 hits the surface of the adsorbed object, the valve stem 504 can be pushed to move to the right, and then the opening of the second L-shaped connecting hole 506 on the boss 5041 is separated from the sealing sleeve 507 to achieve separation from the first L-shaped connecting hole 505. After the reverse movement hits the outer bottom of the vacuum support inner column bowl 204, the valve stem 504 moves in the reverse direction and returns to the initial state, thereby disconnecting the first L-shaped connecting hole 505 and the second L-shaped connecting hole 506, and realizing opening after impact on one side and closing after impact on the other side.

[0031] In order to further ensure the limiting measures of the valve stem at both ends, an annular limiting groove 5011 is opened on the valve body 501 on one side of the sealing groove 502, and an accommodating cavity 5042 is opened at both ends of the valve stem 504. An elastic clamp 5043 cooperating with the annular limiting groove 5011 is movably arranged inside the accommodating cavity 5042. The elastic clamp 5011 on the left side cooperates with the annular limiting groove 5011 at the left end when the valve stem 504 is located at the leftmost end, and the elastic clamp 5011 on the right side cooperates with the annular limiting groove 5011 at the right end when the valve stem 504 is located at the rightmost end. When the valve stem is located at the leftmost end or the rightmost end, mechanical limiting can be provided for the impact valve to avoid the movement of the valve stem due to the pressure difference at both ends, thereby realizing the opening and closing of the valve.

[0032] The working principle of the present invention is as follows: when in use, it is necessary to install a top plate 6 and a power actuator 7. The power actuator 7 selects a cylinder, a hydraulic cylinder or an electric cylinder according to the requirements of the installation equipment, and then connects the vacuum support 2 with the external device that needs to be adsorbed and fixed. When installing, a movable margin of the vacuum support 2 should be left. Then, when working, when the suction cup contacts the fixed position, the soft silicone adsorption ring 102 on the cylindrical bowl plate 1 first contacts the fixed position. Under the pressure of the device, the soft silicone adsorption ring 102 on the cylindrical bowl plate 1 can be tightly attached to the contact surface to achieve sealing. Then, the power actuator 7 is started to work. Under the push of the power actuator 7, the cylindrical bowl piston 3 is pushed to move further. The inner wall of the cylindrical bowl piston 3 and the outer wall of the vacuum support inner cylindrical bowl 204 in the adsorption vacuum support are slidably sealed, and a vacuum can be formed in the cavity between the two. When the impact valve 5 on the cylindrical bowl piston 3 contacts the contact surface, the impact valve 5 opens. The cavity between the cylindrical bowl plate 1 and the contact surface will be connected with the cavity between the cylindrical bowl piston 3 and the vacuum-supported inner column bowl 204, and a vacuum will be formed between the two to achieve adsorption and fixation. When separation is required, the power actuator 7 pushes the cylindrical bowl piston 3 away. After the impact valve 5 is separated from the contact surface, the impact valve 5 is still in an open state. When the cylindrical bowl piston 3 is pulled out to the pressure relief hole 101, the pressure can be instantly relieved through the pressure relief hole 101 to achieve intake separation. When the impact valve 5 contacts the outer bottom of the bowl of the vacuum-supported inner column bowl 204, the impact valve 5 is closed to achieve the spatial sealing of the cylindrical bowl piston 3. Through such a setting, the rough surface can be adsorbed under the action of the soft silicone adsorption ring 102. Moreover, during adsorption, when the power actuator 7 moves, the pressure on both sides is balanced, and the required pulling force or pressure is smaller. There is no need to continuously create negative pressure. Only one-dimensional force is required, forward during adsorption and backward during removal. The structure is simple and more convenient and practical.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A portable vacuum suction cup, comprising a vacuum suction support (2), a cylindrical bowl (1), and a cylindrical bowl piston (3) arranged between the vacuum suction support (2) and the cylindrical bowl (1), characterized in that: The vacuum support member (2) comprises a support ring (201), a guide slide (202), support ribs (203) and a vacuum support inner column bowl (204); a collision valve (5) is fixedly connected to the middle of the column bowl piston (3); a plurality of piston support guide rods (4) are fixedly connected to the periphery of the opening of the column bowl piston (3); a guide hole (2021) is opened in the middle of the guide slide (202); the piston support guide rod (4) passes through the guide hole (2021) and is slidably matched with the guide slide (202) to realize the movable guidance of the column bowl piston (3).

2. A portable vacuum suction cup according to claim 1, characterized in that: A soft silicone adsorption ring (102) is fixedly connected to the periphery of the opening of the cylindrical bowl (1), and a pressure relief hole (101) is provided on the side wall of the cylindrical bowl (1).

3. A portable vacuum suction cup according to claim 1, characterized in that: The guide slide (202) is fixed to the periphery of the vacuum support inner column bowl (204), the support ribs (203) are fixed to the side walls of the guide slide (202), and the support ring (201) is integrally formed at the ends of the support ribs (203).

4. A portable vacuum suction cup according to claim 1, characterized in that: The number of the guide slides (202) is the same as the number of the piston support guide rods (4), and the guide slides (202) are evenly distributed along the outer circumference of the vacuum support inner column bowl (204).

5. The portable vacuum suction cup according to claim 1, characterized in that: The outer wall of the cylindrical bowl piston (3) is connected to the inner wall of the cylindrical bowl plate (1) in a sliding and sealing manner, and the inner wall of the cylindrical bowl piston (3) is connected to the outer wall of the vacuum support inner cylindrical bowl (204) in the vacuum support (2) in a sliding and sealing manner.

6. The portable vacuum suction cup according to claim 1, characterized in that: The impact valve (5) comprises a valve body (501), a valve stem (504) movably arranged inside the valve body (501), sealing grooves (502) opened at both ends of the valve body (501) and close to the valve stem (504), a sealing ring (503) clamped between the sealing groove (502) and the valve stem (504), a boss (5041) integrally formed on the valve stem (504), and a first boss (5041) opened between one end of the valve stem (504) and the outer circumferential surface. An L-shaped connecting hole (505), a second connecting hole (506) opened between the other end of the valve stem (504) and the boss (5041), a sealing sleeve (507) fixed inside the valve body (501) and slidingly sealed with the boss (5041), and a limiting ring (508) fixed on the periphery of the valve stem (504) at the opening of the first connecting hole (505), the valve stem (504) and the valve body (501) are connected in a sliding and sealing manner.

7. A portable vacuum suction cup according to claim 6, characterized in that: The valve body (501) is provided with an annular limit groove (5011) on one side of the sealing groove (502), and both ends of the valve stem (504) are provided with a receiving cavity (5042), and an elastic clamp (5043) that cooperates with the annular limit groove (5011) is movably arranged inside the receiving cavity (5042).

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