Angle adjustment mechanism and bernoulli chuck comprising the same

Abstract

The application discloses an angle adjusting mechanism and a Bernoulli chuck containing the same, relates to the technical field of chucks, and comprises a chuck, a support frame is arranged on the upper end face of the chuck, and a gas inlet seat is arranged in the support frame, characterized in that the angle adjusting mechanism further comprises a ring-shaped plate, arc-shaped grooves are symmetrically arranged in the ring-shaped plate, sliding blocks are slidably connected in the arc-shaped grooves, tension springs are arranged on one side of the sliding blocks, one end of each tension spring is arranged on the side wall of the arc-shaped groove, and the angle adjusting mechanism further comprises spherical blocks and connecting rods; through the built-in adjusting assembly, the installation angle of the Bernoulli chuck can be adjusted according to the narrow space on site before the Bernoulli chuck contacts a workpiece, so that the Bernoulli chuck can flexibly avoid obstacles, and the angle of a deflector plate is adjusted at the same time; when airflow is sprayed, the airflow will adhere to the curved surface of the deflector plate and change the spraying direction according to the Coanda effect, so that a lateral resultant moment is generated below the Bernoulli chuck, and a stable effect is achieved on the workpiece.

Description

Technical Field

[0001] This invention relates to the field of suction cup technology, and more specifically, to an angle adjustment mechanism and a Bernoulli suction cup containing the mechanism. Background Technology

[0002] A Bernoulli chuck is a type of chuck suitable for handling thin, extremely precise, and fragile workpieces. Utilizing Bernoulli's principle, when compressed air is introduced into the chuck, a uniform and thin strong airflow is generated on the working surface of the chuck. At this time, the gas velocity on the upper surface of the workpiece is greater than the gas velocity below it, thereby creating an upward lifting force at the bottom of the workpiece, causing the workpiece to adhere to the bottom of the chuck body. Compared with traditional vacuum chucks, Bernoulli chucks avoid direct contact with the workpiece surface, reducing the risk of contamination to the polished workpiece surface.

[0003] As modern manufacturing continues to develop towards intelligence, the working environment on the production site is becoming increasingly complex. Most traditional Bernoulli chucks have a fixed connection between the body and the support structure. When faced with obstacles in the surrounding area, it is often impossible to adjust the approach angle of the chuck in advance before adsorption, making it difficult for the chuck to reach the workpiece surface in the best posture. To address this, we propose an angle adjustment mechanism and a Bernoulli chuck containing this mechanism. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide an angle adjustment mechanism and a Bernoulli suction cup containing the mechanism.

[0005] To achieve the above objectives, the present invention provides the following technical solution: including a suction cup, a support frame is provided on the upper end face of the suction cup, an air inlet seat is provided inside the support frame, and an annular plate is also included. The annular plate is symmetrically provided with arc-shaped grooves, a slider is slidably connected in the arc-shaped grooves, a tension spring is provided on one side of the slider, and one end of the tension spring is provided on the side wall of the arc-shaped groove. It also includes a spherical block, the bottom of which is disposed on the upper surface of the support frame; A connecting rod is disposed between the slider and the spherical block; It also includes an adjustment component, located inside the annular plate, for fine-tuning the angle of the suction cup.

[0006] Preferably, the adjustment assembly includes a driving component disposed within an annular plate, a movable component disposed within the annular plate, and a deflecting component disposed within the suction cup, the deflecting component and the movable component cooperating with each other.

[0007] Preferably, the driving component includes a mounting bracket disposed on the outer side of the annular plate, a motor disposed within the mounting bracket, a deflection plate one disposed at one end of the motor rotor shaft penetrating the annular plate, a deflection plate two disposed on the inner side of the annular plate, and rotating shafts disposed correspondingly within the deflection plate one and the deflection plate two, with the two sets of rotating shafts disposed on the outer wall of the spherical block.

[0008] Preferably, the movable component includes arc-shaped plates symmetrically arranged on the outer wall of the connecting rod, with inclined grooves on the inner walls of the arc-shaped plates on both sides, and a bearing seat slidably connected in the inclined grooves on both sides, and limit posts symmetrically arranged on the upper end face of the suction cup.

[0009] Preferably, a movable rod is slidably connected in the vertical direction inside the limiting column, and a second bearing seat is provided on the upper end face of the movable rod. A telescopic rod is provided inside the first bearing seat and the second bearing seat.

[0010] Preferably, the deflecting component includes a slot in the suction cup, an air outlet is provided at the middle position of the bottom end of the slot, auxiliary slots are symmetrically provided in the slot, deflecting shafts are provided in the auxiliary slots on both sides, deflecting plates are provided on the outer wall of the deflecting shafts, and linkage plates are provided on the movable rods on both sides at the position of the slot.

[0011] Preferably, an annular strip is provided between the two linkage plates, and a connecting plate is provided at the bottom of each of the two linkage plates, with one end of the connecting plate on the outer wall of the deflection plate.

[0012] Preferably, an annular block is provided at the bottom end of the annular strip, and abutting blocks are provided on the inner wall of the annular block in a circular pattern. A sleeve is provided at the middle position of the bottom end of the slot, and the sleeve wraps around the air outlet. An annular groove is provided on the outer wall of the sleeve, and a through-hole is provided in the annular groove in a circular pattern.

[0013] Preferably, a movable block is movably connected inside the through-hole, and an abutting part is integrally formed on the outer wall of the movable block. The abutting block and the abutting part cooperate with each other. The movable block is provided with a movable opening, and multiple sets of movable openings are provided with rubber rings.

[0014] Preferably, it further includes a docking seat disposed on the upper end face of the spherical block, the docking seat being connected to the connecting end of the external body.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. In this invention, the installation angle of the suction cup can be adjusted according to the narrow space before it comes into contact with the workpiece, thus flexibly avoiding obstacles. After the adjustment is completed, the drive component and auxiliary component work together to lock the position, thereby improving the layout freedom and installation efficiency of the equipment in complex production lines.

[0016] 2. In this invention, while the movable rod moves, the linkage plate at its bottom moves synchronously. At this time, the linkage plate drives the ring bar to move synchronously, and the connecting rod rotates between the linkage plate and the deflector plate respectively. This causes the angle of the deflector plate to be adjusted. When the airflow is ejected, according to the Coanda effect, the airflow will adhere to the curved surface of the deflector plate and change the ejection direction, generating a lateral resultant torque under the suction cup, which has a stabilizing effect on the workpiece.

[0017] 3. In this invention, the movement of the movable rod simultaneously drives the annular bar on the linkage plate to operate synchronously. In this way, the annular bar drives the annular block to move, and the abutting block inside the annular block contacts the abutting part on the movable block, causing the movable block to move radially within the movable opening. Since the movable block abuts against the middle position of the air outlet, the middle position of the air outlet is deformed, thereby generating a strong negative pressure zone in the air outlet, ensuring the stability of the workpiece. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure proposed in this invention; Figure 2 This is a schematic diagram of the adjustment component proposed in this invention; Figure 3 This is a schematic diagram of the annular plate proposed in this invention; Figure 4 This is a bottom-view schematic diagram of the invention. Figure 5 This is a schematic diagram of the slotting method proposed in this invention; Figure 6 This is a schematic cross-sectional view of the annular strip proposed in this invention; Figure 7 The present invention proposes Figure 5 Enlarged diagram of point A.

[0019] In the picture: 1. Suction cup; 2. Support frame; 3. Air inlet seat; 4. Annular plate; 5. Arc groove; 6. Slider; 7. Tension spring; 8. Spherical block; 9. Connecting rod; 10. Adjustment assembly; 11. Drive component; 13. Moving component; 14. Deflector component; 15. Mounting bracket; 16. Motor; 17. Deflector plate one; 18. Deflector plate two; 19. Rotating shaft; 20. Arc plate; 21. Inclined groove; 22. Shaft seat one; 23. Limiting post 24. Movable rod; 25. Shaft seat II; 26. Telescopic rod; 27. Slot; 28. Air outlet; 29. ​​Auxiliary slot; 30. Deflection shaft; 31. Deflection plate; 32. Linkage plate; 33. Annular bar; 34. Connecting plate; 35. Annular block; 36. Abutting block; 37. Sleeve; 38. Annular groove; 39. Through port; 40. Movable block; 41. Abutting part; 42. Movable opening; 43. Rubber ring; 44. Connecting seat. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this specification are for illustrative purposes only and do not represent the only possible implementation.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0023] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0024] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0025] Example 1 further illustrates the angle adjustment mechanism and Bernoulli suction cup 1 containing the mechanism proposed in this invention. It includes a suction cup 1, a support frame 2 detachably mounted on the upper surface of the suction cup 1, an air inlet seat 3 fixedly connected inside the support frame 2, an annular plate 4, an arc groove 5 symmetrically provided inside the annular plate 4, a slider 6 slidably connected inside the arc groove 5, a tension spring 7 fixedly connected to one side of the slider 6, the tension spring 7 is a carbon spring, which has high strength and is convenient for daily use. One end of the tension spring 7 is fixedly connected to the side wall of the arc groove 5. It also includes a spherical block 8, the bottom end of which is movably connected to the upper surface of the support frame 2. A connecting rod 9 is fixedly connected between the slider 6 and the spherical block 8. It also includes a docking seat 44, which is fixedly connected to the upper surface of the spherical block 8 and is connected to the connecting end of the external main body. Depend on Figures 1 to 3 It can be seen that a support frame 2 is detachably installed on the upper surface of the suction cup 1. The support frame 2 is connected to the external air outlet through the air inlet seat 3. Compressed air is introduced into the suction cup 1 through the air inlet seat 3, and a strong airflow is generated on the working surface of the suction cup 1. At this time, the gas flow velocity on the upper surface of the workpiece is greater than the gas flow velocity at the lower part. Utilizing the principle that the faster the fluid velocity, the lower the pressure, a pressure difference will be generated on the upper and lower sides of the workpiece, thereby forming an upward lifting force at the bottom of the workpiece, so that the workpiece is adsorbed on the bottom of the suction cup 1 body. In automated production lines, due to the compact layout and limited space, this device avoids obstacles by setting an adjustment component 10, which is set inside the annular plate 4. The adjustment component 10 includes a driving component 11, a movable component 13 is set inside the annular plate 4, and a deflecting component 14 is set inside the suction cup 1. The deflecting component 14 and the movable component 13 cooperate to generate a lateral resultant torque of airflow below the suction cup 1, which has a stabilizing effect on the workpiece.

[0026] Example 2 Based on Embodiment 1, the following technical features are added: the driving component 11 includes a mounting bracket 15 fixedly connected to the outside of the annular plate 4, a motor 16 is detachably installed in the mounting bracket 15, a deflection plate 17 is fixedly connected to one end of the rotor shaft of the motor 16 that passes through the annular plate 4, a deflection plate 2 18 is rotatably connected to the inside of the annular plate 4, and rotating shafts 19 are fixedly connected to the deflection plate 17 and the deflection plate 2 18 respectively, and the two sets of rotating shafts 19 are on the outer wall of the spherical block 8; Depend on Figures 1 to 3 It can be seen that a motor 16 is detachably installed on the outer side of the annular plate 4 via the mounting bracket 15. The motor 16 is adjusted by a corresponding external controller. The motor 16 drives the deflection plate 17 to rotate. While the deflection plate 17 rotates, it drives the spherical block 8 to deflect via the rotating shaft 19. Since the connection position of the rotating shaft 19 does not correspond to the output shaft of the motor 16, the suction cup 1 at the bottom of the spherical block 8 deflects while the deflection plate 17 rotates. At the same time, due to the deflection of the spherical block 8, the slider 6 on the connecting rod 9 slides in the arc groove 5. The movable component 13 includes an arc-shaped plate 20 symmetrically fixedly connected to the outer wall of the connecting rod 9. The inner walls of the two arc-shaped plates 20 are provided with inclined grooves 21. The two inclined grooves 21 are slidably connected to the first bearing 22. The upper end face of the suction cup 1 is symmetrically fixedly connected to the limit post 23. The movable rod 24 is slidably connected in the vertical direction in the limit post 23. The upper end face of the movable rod 24 is fixedly connected to the second bearing 25. The first bearing 22 and the second bearing 25 are rotatably connected to the telescopic rod 26. Depend on Figures 1 to 3 An arc-shaped plate 20 is fixed on the outer wall of the connecting rod 9. The arc-shaped plate 20 is attached to the inner side of the annular plate 4. The annular plate 4 and the arc-shaped plate 20 do not contact each other. A bearing seat 22 is slidably connected inside the arc-shaped plate 20 through a groove 21. At the same time, a limit post 23 is symmetrically fixed on the upper end of the suction cup 1. A movable rod 24 is slidably connected to the limit post 23 in the vertical direction. The upper end of the movable rod 24 is movably connected to the bearing seat 22 through a second bearing seat 25 and a telescopic rod 26. Therefore, when the arc-shaped plate 20 moves with the connecting rod 9, the deflection force of the groove 21 drives the movable rod 24 to move in the vertical direction. The deflecting component 14 includes a slot 27 provided in the suction cup 1. An air outlet 28 is fixedly connected to the middle position of the bottom end of the slot 27. Auxiliary slots 29 are symmetrically provided in the slot 27. A deflecting shaft 3019 is rotatably connected in the auxiliary slots 29 on both sides. A deflecting plate 31 is fixedly connected to the outer wall of the deflecting shaft 3019. A linkage plate 32 is fixedly connected to the movable rods 24 on both sides at the position of the slot 27. An annular strip 33 is fixedly connected between the linkage plates 32 on both sides. A connecting plate 34 is rotatably connected to the bottom end of each linkage plate 32 on both sides. One end of each connecting plate 34 on both sides is rotatably connected to the outer wall of the deflecting plate 31. Its air outlet 28 is trumpet-shaped and made of deformable material. The outer contour of the tube of the air outlet 28 is a smooth and continuous symmetrical curved surface. Specifically, its outer diameter decreases smoothly along the axis from the first end, reaching the minimum value at the midpoint of the transition section, forming an annular waist. Then, from the midpoint, the outer diameter increases smoothly along the axis to the second end. The outer diameters of the ports of the first end and the second end are equal and are significantly larger than the outer diameter at the annular waist, so that the overall contour presents a bidirectional tapering curved surface. When it is in operation, its movable block 40 will abut against the middle position of the air outlet 28. As can be seen from the above, when the movable rod 24 moves, it drives the linkage plate 32 at the bottom to move synchronously. At this time, the linkage plate 32 drives the annular strip 33 to move synchronously, and the connecting rod rotates between the linkage plate 32 and the deflector plate 31 respectively. In this way, the angle of the deflector plate 31 is adjusted. Figures 4 to 7It can be seen that the internal structure of the suction cup 1 has been further improved. A deflection shaft 3019 is rotatably connected inside the suction cup 1, and a deflection plate 31 is fixed on the outside of the deflection shaft 3019. When the suction cup 1 deflects, the tilt angle of the deflection plate 31 is changed. When the airflow is ejected, according to the Coanda effect, the airflow will adhere to the curved surface of the deflection plate 31 and change the ejection direction. For example, a lateral resultant torque is generated below the suction cup 1, which has a stabilizing effect on the workpiece. An annular block 35 is fixedly connected to the bottom end of the annular strip 33. An abutting block 36 is fixedly connected to the inner wall of the annular block 35 in a circular shape. A sleeve 37 is fixedly connected to the middle position of the bottom end of the slot 27. The sleeve 37 wraps the air outlet 28. An annular groove 38 is provided on the outer wall of the sleeve 37. A through-hole 39 is provided in the annular groove 38 in a circular shape. A movable block 40 is movably connected in the through-hole 39. An abutting part 41 is integrally formed on the outer wall of the movable block 40. The abutting block 36 and the abutting part 41 cooperate. An movable port 42 is provided in the movable block 40. Rubber rings 43 are provided in multiple sets of movable ports 42. Depend on Figures 3 to 7 It can be seen that when the linkage plate 32 moves, it drives the annular bar 33 to move. At this time, the annular block 35 drives multiple sets of abutting blocks 36 to operate synchronously. An annular sleeve 37 is fixed at the middle position of the bottom end of the slot 27. The sleeve 37 surrounds the air outlet 28. The outer side of the sleeve 37 is restricted by the rubber ring 43 to the movable block 40. When the annular bar 33 drives the annular block 35 to move, the abutting block 36 in the annular block 35 contacts the abutting part 41 on the movable block 40. At this time, under pressure, the movable block 40 can move radially within the movable opening 42. Working principle: When it is needed to fine adjust the angle of suction cup 1, the motor 16 is started by the external controller. The motor 16 drives the deflection plate 17 to rotate. While the deflection plate 17 is rotating, it drives the spherical block 8 to deflect through the rotating shaft 19, thereby driving the suction cup 1 at the bottom of the spherical block 8 to make fine adjustments to adapt to different working conditions. When the spherical block 8 rotates, it drives the slider 6 on the connecting rods 9 on both sides to move in the arc groove 5. Thus, when the arc plate 20 moves with the connecting rod 9, the deflection force of the inclined groove 21 drives the movable rod 24 to move in the vertical direction. When the movable rod 24 moves, the linkage plate 32 at its bottom moves synchronously. At this time, the linkage plate 32 drives the ring bar 33 to move synchronously. The connecting rod rotates between the linkage plate 32 and the deflector plate 31, thereby adjusting the angle of the deflector plate 31. When the airflow is ejected, according to the Coanda effect, the airflow will adhere to the curved surface of the deflector plate 31 and change the ejection direction, such as generating a lateral resultant torque below the suction cup 1, which has a stabilizing effect on the workpiece. As the movable rod 24 moves, it drives the annular bar 33 on the linkage plate 32 to operate synchronously. In this way, the annular bar 33 drives the annular block 35 to move. The abutting block 36 inside the annular block 35 comes into contact with the abutting part 41 on the movable block 40, which drives the movable block 40 to move radially within the movable opening 42. Since the movable block 40 abuts against the middle position of the air outlet 28, the middle position of the air outlet 28 is deformed, thereby generating a strong negative pressure zone in the air outlet 28 to ensure the stability of the workpiece.

[0027] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. An angle adjustment mechanism, comprising a suction cup, wherein a support frame is disposed on the upper end face of the suction cup, and an air inlet seat is disposed within the support frame, characterized in that, Also includes: The annular plate has axially symmetrical arc grooves inside; The slider is slidably installed within the arc-shaped groove; A tension spring, one end of which is fixedly connected to one side of the slider, and the other end of which is fixedly connected to the side wall of the arc-shaped groove; A spherical block, the bottom of which is located on the upper surface of the support frame; A connecting rod is disposed between the slider and the spherical block; An adjustment component, located within the annular plate, is used to fine-tune the angle of the suction cup.

2. The angle adjustment mechanism according to claim 1, characterized in that, The adjustment assembly includes a driving component disposed within an annular plate, a movable component disposed within the annular plate, and a deflecting component disposed within the suction cup, the deflecting component and the movable component cooperating with each other.

3. The angle adjustment mechanism according to claim 2, characterized in that, The driving component includes a mounting bracket disposed on the outer side of the annular plate, a motor disposed within the mounting bracket, a deflection plate one disposed at one end of the motor rotor shaft penetrating the annular plate, a deflection plate two disposed on the inner side of the annular plate, and rotating shafts disposed correspondingly within the deflection plate one and the deflection plate two, with the two sets of rotating shafts disposed on the outer wall of the spherical block.

4. The angle adjustment mechanism according to claim 2, characterized in that, The movable component includes arc-shaped plates symmetrically arranged on the outer wall of the connecting rod. The inner walls of the arc-shaped plates on both sides are provided with inclined grooves. A shaft seat is slidably connected in the inclined grooves on both sides. Limiting posts are symmetrically arranged on the upper end face of the suction cup.

5. The angle adjustment mechanism according to claim 4, characterized in that, A movable rod is slidably connected vertically inside the limiting column. A second bearing seat is provided on the upper end face of the movable rod. A telescopic rod is provided inside the first bearing seat and the second bearing seat.

6. The angle adjustment mechanism according to claim 5, characterized in that, The deflecting component includes a slot in the suction cup, an air outlet at the middle of the bottom of the slot, auxiliary slots symmetrically arranged in the slot, deflecting shafts arranged in the auxiliary slots on both sides, deflecting plates arranged on the outer wall of the deflecting shafts, and linkage plates arranged on the movable rods on both sides at the slot positions.

7. The angle adjustment mechanism according to claim 6, characterized in that, An annular strip is provided between the two linkage plates, and a connecting plate is provided at the bottom of each of the two linkage plates. One end of the connecting plate is provided on the outer wall of the deflection plate.

8. The angle adjustment mechanism according to claim 7, characterized in that, An annular block is provided at the bottom of the annular strip, and abutment blocks are provided on the inner wall of the annular block in a circular shape. A sleeve is provided at the middle position of the bottom of the slot, and the sleeve wraps the air outlet. An annular groove is provided on the outer wall of the sleeve, and an opening is provided in a circular shape inside the annular groove.

9. An angle adjustment mechanism according to claim 8, characterized in that, A movable block is movably connected inside the opening. An abutment is integrally formed on the outer wall of the movable block. The abutment block and the abutment cooperate with each other. The movable block is provided with a movable opening, and multiple sets of the movable openings are provided with rubber rings.

10. A Bernoulli suction cup, characterized in that, The device includes the angle adjustment mechanism as described in any one of claims 1-9, and further includes a docking seat disposed on the upper end face of the spherical block, the docking seat being connected to the connecting end of the external body.

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