Numerical control lathe vacuum chuck fixture

Abstract

The utility model discloses a numerical control lathe vacuum chuck fixture applies in numerical control lathe field, including fixed base, the inner wall sliding sleeve of fixed base has vacuum chuck, the surface screw thread connection of fixed base has limit ring, the utility model discloses a way of taking down vacuum chuck by moving slide cylinder and making trapezoidal groove and steel ball align, pull out to vacuum chuck outward, make steel ball enter trapezoidal groove and with the joint hole disengaging joint, can reach the purpose of convenient to assemble and disassemble vacuum chuck, reduced the work load, improved the efficiency of assembling and disassembling, change spring elasticity through the rotation limit ring, can adjust the pre -tightening force of spring, guarantee the stability of fixed, the utility model discloses by loosening the screw cap, rotates fixed bolt and makes the toothed plate and the tooth ring disengage engagement, rotates vacuum chuck, thereby can adjust the direction of workpiece according to need, need not to reassemble and disassemble workpiece, improved practicality and applicability, convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of CNC lathes, and in particular to a vacuum chuck fixture for CNC lathes. Background Technology

[0002] CNC lathe vacuum chucks utilize atmospheric pressure differences. A vacuum pump or generator extracts air from the contact surface between the chuck and the workpiece, creating a negative pressure environment that firmly adheres the workpiece to the chuck surface, thus securing it in place. Vacuum chucks require fixtures for installation on CNC lathes.

[0003] A search of Chinese patents revealed publication number CN216266082U, which describes a vacuum suction cup mounting structure. This structure includes a vacuum suction cup, an air inlet pipe, a fixing mechanism, a spring, and a vacuum device. The vacuum suction cup is mounted at one end of the air inlet pipe, and the vacuum device is mounted at the other end. The fixing mechanism and the spring are both mounted around the air inlet pipe. One end of the spring abuts against the vacuum suction cup, and the other end abuts against the fixing mechanism. This allows for precise and direct mounting of the robot gripper onto the fixing mechanism. The fixing mechanism can compress the spring towards the vacuum suction cup to a specified length, ensuring controllable compression force. Under the elastic force of the spring, the vacuum suction cup can adsorb external workpieces. This allows the entire vacuum suction cup mounting structure to be quickly and accurately mounted onto the robot gripper, ensuring the positional accuracy of the robot gripper when picking up and placing external workpieces. The spring also acts as a buffer, preventing damage to the external workpiece due to pressure when the vacuum suction cup adsorbs it.

[0004] Existing clamps are not convenient for installing and removing vacuum chucks. Generally, when installing or removing a vacuum chuck, multiple screws need to be turned to disengage the clamp from the vacuum chuck. During installation, multiple screws also need to be turned to lock the clamp onto the vacuum chuck. The operation is cumbersome, greatly increases the workload, reduces the efficiency of installation and removal, and is inconvenient to use. In order to solve the above problems, we propose a vacuum chuck clamp for CNC lathes. Utility Model Content

[0005] The purpose of this utility model is to provide a vacuum chuck fixture for CNC lathes, which has the advantage of facilitating the installation and removal of vacuum chucks.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a vacuum chuck fixture for a CNC lathe, comprising a fixed base, a vacuum chuck slidably sleeved on the inner wall of the fixed base, a limit ring threadedly connected to the surface of the fixed base, a slide cylinder slidably sleeved on the surface of the fixed base, a spring provided between the slide cylinder and the limit ring, and the spring sleeved on the surface of the fixed base, the inner wall of the slide cylinder having multiple trapezoidal grooves, the inner wall of the fixed base having multiple steel balls adapted to the trapezoidal grooves, and the surface of the vacuum chuck having a snap-fit ​​hole, and the snap-fit ​​hole snapping with the steel ball.

[0007] By adopting the above technical solution, the vacuum suction cup is pulled outward by moving the sliding cylinder to align the trapezoidal groove with the steel ball, allowing the steel ball to enter the trapezoidal groove and disengage from the locking hole, thus removing the vacuum suction cup. This method facilitates the installation and removal of the vacuum suction cup, reduces workload, and improves installation and removal efficiency. By rotating the limiting ring to change the spring force, the preload of the spring can be adjusted to ensure the stability of the fixation.

[0008] The present invention is further configured such that: a mounting seat is rotatably sleeved on the surface of the fixed seat; a fixing ring is bolted to the surface of the mounting seat and rotatably sleeved with the fixed seat; a toothed plate is slidably connected to the inner wall of the fixing ring; a fixing bolt is rotatably connected to the surface of the toothed plate and threadedly connected to the inner wall of the fixing ring; and a toothed ring is embedded in the surface of the fixed seat and meshes with the toothed plate.

[0009] By adopting the above technical solution, the toothed plate and toothed ring can be disengaged by loosening the nut and rotating the fixing bolt, and the vacuum suction cup can be rotated. This allows the orientation of the workpiece to be adjusted as needed without having to reassemble or disassemble the workpiece, thus improving practicality and applicability and making it convenient to use.

[0010] The present invention is further configured such that a threaded ring is threadedly connected to the surface of the fixed base.

[0011] By adopting the above technical solution, the limiting ring is fixed by setting a threaded ring to ensure stability.

[0012] The present invention is further provided with a sealing gasket between the vacuum suction cup and the inner wall of the fixed base.

[0013] By adopting the above technical solution, a sealing gasket is installed to prevent air leakage.

[0014] The present invention is further configured such that: the inner wall of the mounting base is connected to a quick-release head.

[0015] By adopting the above technical solution and setting a quick-release head, it is easy to connect the gas supply pipe.

[0016] The present invention is further configured such that a nut is threaded onto the surface of the fixing bolt.

[0017] By using the above technical solution, nuts are used to secure the fixing bolts and prevent them from loosening.

[0018] The present invention is further provided with a sealing ring between the fixed base and the mounting base.

[0019] By adopting the above technical solution, a sealing ring is set to prevent air leakage.

[0020] The present invention is further provided that the surface of the slide tube is provided with anti-slip texture.

[0021] By adopting the above technical solution, anti-slip texture is set to prevent hand slippage and facilitate operation.

[0022] In summary, this utility model has the following beneficial effects: 1. This utility model uses a sliding cylinder to align the trapezoidal groove with the steel ball, pulls the vacuum suction cup outward, and allows the steel ball to enter the trapezoidal groove and disengage from the locking hole, thus removing the vacuum suction cup. This method facilitates the installation and removal of the vacuum suction cup, reduces workload, and improves installation and removal efficiency. By rotating the limiting ring, the spring force can be changed, which can adjust the spring preload and ensure the stability of the fixation. 2. This utility model allows the toothed plate to disengage from the toothed ring by loosening the nut and rotating the fixing bolt, and then rotating the vacuum suction cup. This enables the adjustment of the workpiece's orientation as needed without having to reassemble or disassemble the workpiece, thus improving its practicality and applicability and making it convenient to use. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural view of the present invention; Figure 2 This is a three-dimensional sectional view of the structure of this utility model; Figure 3 This is a partial three-dimensional cross-sectional view of the structure of this utility model; Figure 4 This is a partial three-dimensional cross-sectional view of the structure of this utility model.

[0024] Reference numerals in the attached diagram: 1. Fixed base; 2. Vacuum suction cup; 3. Limiting ring; 4. Slide cylinder; 5. Spring; 6. Trapezoidal groove; 7. Steel ball; 8. Snap-fit ​​hole; 9. Mounting base; 10. Fixed ring; 11. Toothed plate; 12. Fixing bolt; 13. Toothed ring; 14. Threaded ring; 15. Sealing gasket; 16. Quick release head; 17. Nut; 18. Sealing ring; 19. Anti-slip texture. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings.

[0026] Example 1: refer to Figure 1 , Figure 2 and Figure 3A vacuum chuck fixture for a CNC lathe includes a fixed base 1, a vacuum chuck 2 slidably sleeved on the inner wall of the fixed base 1, a limit ring 3 threadedly connected to the surface of the fixed base 1, a slide cylinder 4 slidably sleeved on the surface of the fixed base 1, a spring 5 disposed between the slide cylinder 4 and the limit ring 3, and the spring 5 sleeved on the surface of the fixed base 1, the inner wall of the slide cylinder 4 having multiple trapezoidal grooves 6, and the inner wall of the fixed base 1 having multiple steel balls 7, the steel balls 7 being adapted to the trapezoidal grooves 6, and the surface of the vacuum chuck 2... The surface is provided with a snap-fit ​​hole 8, which snaps into the steel ball 7. By moving the slide cylinder 4 to align the trapezoidal groove 6 with the steel ball 7, the vacuum suction cup 2 is pulled outward, so that the steel ball 7 enters the trapezoidal groove 6 and disengages from the snap-fit ​​hole 8, thus removing the vacuum suction cup 2. This method facilitates the installation and removal of the vacuum suction cup 2, reduces workload, and improves installation and removal efficiency. By rotating the limiting ring 3 to change the elastic force of the spring 5, the preload of the spring 5 can be adjusted to ensure the stability of the fixation.

[0027] refer to Figure 2 The surface of the fixed base 1 is threaded with a threaded ring 14. By setting the threaded ring 14, the limiting ring 3 is fixed to ensure stability.

[0028] refer to Figure 2 A sealing gasket 15 is provided between the vacuum suction cup 2 and the inner wall of the fixed base 1 to prevent air leakage.

[0029] refer to Figure 2 The surface of the slide cylinder 4 is provided with anti-slip texture 19. By setting the anti-slip texture 19, the hand slips and the operation is facilitated.

[0030] Example 2: refer to Figure 1 , Figure 2 and Figure 4 A mounting base 9 is rotatably sleeved on the surface of the fixed base 1. A fixing ring 10 is bolted to the surface of the mounting base 9, and the fixing ring 10 is rotatably sleeved with the fixed base 1. A toothed plate 11 is slidably connected to the inner wall of the fixing ring 10. A fixing bolt 12 is rotatably connected to the surface of the toothed plate 11, and the fixing bolt 12 is threaded to the inner wall of the fixing ring 10. A toothed ring 13 is embedded in the surface of the fixed base 1, and the toothed ring 13 meshes with the toothed plate 11. By loosening the nut 17 and rotating the fixing bolt 12, the toothed plate 11 and the toothed ring 13 are disengaged. The vacuum suction cup 2 is then rotated, thereby allowing the orientation of the workpiece to be adjusted as needed without having to reassemble or disassemble the workpiece, improving practicality and applicability, and making it convenient to use.

[0031] refer to Figure 2 The inner wall of the mounting base 9 is connected to a quick-release head 16, which facilitates the connection of the air supply pipe.

[0032] refer to Figure 4The surface of the fixing bolt 12 is threaded with a nut 17. By setting the nut 17, the fixing bolt 12 is fixed and prevented from loosening.

[0033] refer to Figure 2 A sealing ring 18 is provided between the fixed base 1 and the mounting base 9 to prevent air leakage.

[0034] Brief description of usage: Move the sliding cylinder 4. The movement of the sliding cylinder 4 moves the trapezoidal groove 6, aligning it with the steel ball 7. Then pull the vacuum suction cup 2 outward. As the vacuum suction cup 2 moves outward, it moves the locking hole 8, squeezing the steel ball 7 into the trapezoidal groove 6 and disengaging it from the locking hole 8. Remove the vacuum suction cup 2 to complete disassembly. For installation, insert the vacuum suction cup 2 into the fixing base 1 and release the sliding cylinder 4. Under the action of the spring 5, the sliding cylinder 4 moves the trapezoidal groove 6 back to its original position. The return of the trapezoidal groove 6 causes the inner wall of the trapezoidal groove 6 to squeeze the steel ball 7 into the locking hole 8, locking it in place and fixing the vacuum suction cup 2 to complete the installation. This facilitates the installation and removal of the vacuum suction cup 2. By loosening the threaded ring 14 and rotating the limiting ring 3, the limiting ring 3 moves, causing the spring force of the spring 5 to change, thus adjusting the spring force of the spring 5 and ensuring the stability of the slide cylinder 4. Loosening the bolt and rotating the fixing bolt 12 causes the toothed plate 11 to disengage from the toothed ring 13. Rotating the vacuum suction cup 2 rotates the workpiece to the desired position. Then, the fixing bolt 12 is tightened to engage the toothed plate 11 with the toothed ring 13. Finally, the nut 17 is tightened to fix it, completing the adjustment and achieving the purpose of adjusting the direction.

[0035] It should be noted that parts have a lifespan and can be replaced during regular maintenance when they no longer meet performance requirements. Deterioration in performance due to prolonged use of parts is not a design defect of this application.

[0036] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A vacuum chuck fixture for a CNC lathe, comprising a fixed base (1), characterized in that, The inner wall of the fixed base (1) is slidably fitted with a vacuum suction cup (2), the surface of the fixed base (1) is threadedly connected with a limit ring (3), the surface of the fixed base (1) is slidably fitted with a slide cylinder (4), a spring (5) is provided between the slide cylinder (4) and the limit ring (3), and the spring (5) is fitted on the surface of the fixed base (1). The inner wall of the slide cylinder (4) is provided with multiple trapezoidal grooves (6), the inner wall of the fixed base (1) is provided with multiple steel balls (7), and the steel balls (7) are adapted to the trapezoidal grooves (6). The surface of the vacuum suction cup (2) is provided with a snap-fit ​​hole (8), and the snap-fit ​​hole (8) is snap-fitted with the steel ball (7).

2. The CNC lathe vacuum chuck fixture according to claim 1, characterized in that, The surface of the fixed seat (1) is rotatably sleeved with a mounting seat (9), and the surface of the mounting seat (9) is bolted with a fixing ring (10), and the fixing ring (10) is rotatably sleeved with the fixed seat (1). The inner wall of the fixing ring (10) is slidably connected with a toothed plate (11), and the surface of the toothed plate (11) is rotatably connected with a fixing bolt (12), and the fixing bolt (12) is threadedly connected to the inner wall of the fixing ring (10). The surface of the fixed seat (1) is embedded with a toothed ring (13), and the toothed ring (13) meshes with the toothed plate (11).

3. A vacuum chuck fixture for a CNC lathe according to claim 1, characterized in that, The surface of the fixed base (1) is threaded with a threaded ring (14).

4. A vacuum chuck fixture for a CNC lathe according to claim 1, characterized in that, A sealing gasket (15) is provided between the vacuum suction cup (2) and the inner wall of the fixed base (1).

5. A vacuum chuck fixture for a CNC lathe according to claim 2, characterized in that, The inner wall of the mounting base (9) is connected to a quick-release head (16).

6. A vacuum chuck fixture for a CNC lathe according to claim 2, characterized in that, The surface of the fixing bolt (12) is threaded with a nut (17).

7. A vacuum chuck fixture for a CNC lathe according to claim 2, characterized in that, A sealing ring (18) is provided between the fixed seat (1) and the mounting seat (9).

8. A vacuum chuck fixture for a CNC lathe according to claim 1, characterized in that, The surface of the slide (4) is provided with anti-slip texture (19).

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