Numerical control tool holder automatic mounting and dismounting device

Abstract

The present application relates to the technical field of numerical control center, and particularly relates to a numerical control tool holder automatic loading and unloading device, which is high in safety, improves product precision, improves tool service life, improves work efficiency, reduces labor intensity, and thus reduces production cost; the device comprises a rotating ring, and two clamping jaws are elastically installed on the rotating ring in a radial direction.

Description

Technical Field

[0001] This invention relates to the technical field of CNC centers, and in particular to automatic loading and unloading equipment for CNC tool holders. Background Technology

[0002] In existing technology, commonly used tool holders fall into two categories: heavy-duty milling chuck tool holders and spring collet tool holders. The original workflow involves two processes: loading and unloading. Loading the tool involves the worker placing different types of tools into the tool holder chuck, then using a wrench matched to the tool holder and turning it clockwise until a certain tightness is felt. Once the tool is loaded, the tool holder is removed. Unloading the tool involves turning the wrench counter-clockwise. This method has the following disadvantages: First, it is unsafe, with a high rate of workplace injuries. During the tool loading and unloading process, turning the wrench by hand poses a risk of injury. First, the force applied during cutting is random. Excessive force can cause the wrench to dislodge, causing the worker to fall forward and inevitably collide with the cutting head, leading to workplace injuries of varying degrees. Second, the torque and force applied each time vary, severely affecting product precision. Since torque is manually output, the randomness of this output directly results in inconsistent clamping of the cutting tool by the chuck, leading to varying cutting precision and thus affecting product quality. Third, the chuck is easily damaged. The unidirectional torque output causes torque imbalance, making the chuck, cutting tool, and wrench prone to damage. Summary of the Invention

[0003] To solve the above-mentioned technical problems, the present invention provides an automatic loading and unloading device for CNC tool holders, which is highly safe, improves product accuracy, extends tool life, increases work efficiency, reduces labor intensity, and thus reduces production costs.

[0004] The automatic loading and unloading device for CNC tool holders of the present invention includes a rotating ring, on which two grippers are elastically mounted radially.

[0005] The automatic loading and unloading device for CNC tool holders of the present invention also includes a housing, on which a hollow shaft is rotatably mounted, and a worm wheel is fixed on the hollow shaft. The worm wheel rotates synchronously with the rotating ring. A worm gear meshing with the worm wheel is rotatably mounted on the housing, and a driving component is installed at the end of the worm gear.

[0006] The automatic loading and unloading device for CNC tool holders of the present invention has two T-shaped holes on the rotating ring. The gripper slides at the T-shaped holes. The gripper is provided with an annular protrusion that abuts against the inner wall of the T-shaped hole. A stud is connected to the gripper. A baffle is fixed at the T-shaped hole. One end of the stud passes through the baffle. A spring is fitted on the stud. The two ends of the spring contact the annular protrusion and the baffle, respectively.

[0007] In the automatic loading and unloading device for CNC tool holders of the present invention, the baffle is fixed to the rotating ring by a stud.

[0008] In the automatic loading and unloading device for CNC tool holders of the present invention, there are two studs and two springs.

[0009] In the automatic loading and unloading device for CNC tool holders of the present invention, there are two studs.

[0010] The automatic loading and unloading device for CNC tool holders of the present invention has a notch on the surface of the rotating ring for placing a baffle.

[0011] In the automatic loading and unloading device for CNC tool holders of the present invention, a stud is threadedly connected to a clamping jaw.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: When the tool is loaded into the rotating ring, the gripper enters the keyway of the tool holder. The two symmetrical grippers, like the relationship between a key and a keyway, generate a positive and negative torque on the tool holder, thereby achieving the clamping and releasing of the tool by the tool holder. The generated torque makes the rotation effect of the object better because manual operation only generates torque, which has two effects: translational effect and rotational effect. The translational effect is harmful when loading and unloading tools, making the workpiece easily damaged. The torque only generates a rotational effect and does not damage the workpiece. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the present invention;

[0014] Figure 2 yes Figure 1 A schematic diagram of the structure after the outer shell is hidden;

[0015] Figure 3 This is a schematic diagram of the structure of the device after the CNC center is in use;

[0016] Figure 4 yes Figure 2 Cross-sectional view;

[0017] Figure 5 This is a bottom view of the rotating ring;

[0018] Figure 6 This is a schematic diagram of the structure after the rotating ring is hidden;

[0019] The following are labels in the attached diagram: 1. Rotating ring; 2. Clamping jaw; 3. Housing; 4. Hollow shaft; 5. Worm gear; 6. Worm; 7. Drive component; 8. T-hole; 9. Annular protrusion; 10. Stud one; 11. Baffle; 12. Spring; 13. Stud two. Detailed Implementation

[0020] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0021] like Figures 1 to 6As shown, the automatic loading and unloading device for CNC tool holders of the present invention includes a rotating ring 1, and two grippers 2 are elastically mounted on the rotating ring 1 in the radial direction;

[0022] In this embodiment, when the tool is inserted into the rotating ring 1, the gripper 2 enters the keyway of the tool holder. The two symmetrical grippers 2, like the relationship between a key and a keyway, generate a positive and negative torque on the tool holder, thereby achieving the clamping and releasing of the tool by the tool holder. The generated torque improves the rotation effect of the object because manual operation only generates torque, which has two effects: translational effect and rotational effect. The translational effect is harmful when loading and unloading tools, making the workpiece easily damaged. The torque only generates a rotational effect and does not damage the workpiece.

[0023] The automatic loading and unloading device for CNC tool holders of the present invention, such as Figure 1 and Figure 2 As shown, it also includes a housing 3, on which a hollow shaft 4 is rotatably mounted, and a worm gear 5 is fixed on the hollow shaft 4. The worm gear 5 rotates synchronously with the rotating ring 1. The worm gear 5 and the rotating ring 1 are connected by T-bolts, so that the worm gear 5 can drive the rotating ring 1 to rotate when it rotates. The housing 3 is rotatably mounted with a worm 6 that meshes with the worm gear 5. A drive component 7 is installed at the end of the worm 6. The drive component 7 is a servo motor.

[0024] In this embodiment, after the cutting tool is installed inside the rotating ring 1, the driving component 7 is operated to rotate the worm 6, thereby driving the worm wheel 5, the rotating ring 1 and the gripper 2 to rotate. Even if the gripper 2 is not in the keyway of the tool holder, under the action of the elastic force, the gripper 2 will be stuck in the keyway of the tool holder, so that the tool holder generates a positive and negative torque, thereby realizing the clamping and releasing of the tool by the tool holder.

[0025] The automatic loading and unloading device for CNC tool holders of the present invention, such as Figure 4 and Figure 6 As shown, the rotating ring 1 has two T-shaped holes 8. The gripper 2 slides in the T-shaped holes 8. The gripper 2 has an annular protrusion 9 that abuts against the inner wall of the T-shaped hole 8. The gripper 2 is connected to a stud 10. A baffle 11 is fixed in the T-shaped hole 8. The end of the stud 10 passes through the baffle 11. A spring 12 is fitted on the stud 10. The two ends of the spring 12 contact the annular protrusion 9 and the baffle 11 respectively.

[0026] In this embodiment, one end of the gripper 2 extends from the rotating ring 1 through the T-hole 8. Under the action of the spring 12, the annular protrusion 9 abuts against the inner wall of the T-hole 8. When it is necessary to disengage the gripper 2 from the keyway of the tool holder, the baffle 11 is disengaged from the rotating ring 1, and then the gripper 2 and the stud 10 are pulled out.

[0027] The automatic loading and unloading device for CNC tool holders of the present invention, such as Figure 2 As shown, the baffle 11 is fixed to the rotating ring 1 by stud 2 13;

[0028] In this embodiment, the baffle 11 is fixed to the rotating ring 1 by the second stud 13, which makes it easier to assemble and disassemble the baffle 11.

[0029] The automatic loading and unloading device for CNC tool holders of the present invention, such as Figure 6 As shown, there are two studs 10 and two springs 12;

[0030] In this embodiment, two studs 10 are respectively installed on both sides of the gripper 2, making the gripper 2 slide more smoothly.

[0031] The automatic loading and unloading device for CNC tool holders of the present invention, such as Figure 2 As shown, there are two studs, numbered 13.

[0032] In this embodiment, the studs 13 are located on both sides of the baffle 11, which makes the baffle 11 more secure.

[0033] The automatic loading and unloading device for CNC tool holders of the present invention, such as Figure 5 As shown, a notch for placing the baffle 11 is provided on the surface of the rotating ring 1;

[0034] In this embodiment, as Figure 5 As shown, the baffle 11 is installed at the notch, so that the baffle 11 will not protrude from the rotating ring 1, which is more aesthetically pleasing and easier to position.

[0035] In the automatic loading and unloading device for CNC tool holders of the present invention, stud 10 is threadedly connected to gripper 2;

[0036] In this embodiment, the stud 10 is threadedly connected to the jaw 2, which facilitates the installation of the stud 10.

[0037] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0038] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A numerical control tool holder automatic mounting and demounting apparatus, characterized by, The utility model provides a rotatory ring (1) is elastically installed with two clamping jaw (2) along the radial, still include the shell (3), the hollow shaft (4) is rotatably installed with in the shell (3), the hollow shaft (4) is fixed with worm wheel (5), worm wheel (5) synchronous rotation with rotatory ring (1), the shell (3) rotatably installs with the worm (6) that engages with worm wheel (5), and the end of worm (6) is installed with drive part (7), rotatory ring (1) is set up two T type holes (8), the clamping jaw (2) slides at T type hole (8), and the annular protrusion (9) of clamping jaw (2) is arranged on the inner wall of T type hole (8), and the stud one (10) is connected on clamping jaw (2), and the baffle (11) is fixed at T type hole (8), and the end of stud one (10) passes through baffle (11), and the spring (12) is sleeved on stud one (10), and the both ends of spring (12) are in contact with annular protrusion (9) and baffle (11) respectively, the baffle (11) is fixed on rotatory ring (1) through the stud two (13), the stud one (10) and spring (12) are two, the stud two (13) is two.

2. The apparatus according to claim 1, wherein The surface of the rotatory ring (1) is provided with a gap for placing the baffle (11).

3. The apparatus according to claim 1, wherein The stud one (10) is threadedly connected with the clamping jaw (2).

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