Cutter bar of numerical control machining cutter

Abstract

The utility model discloses a numerical control machining cutter bar which comprises a cutter bar fixing frame, a trigger mechanism and a warning mechanism, the trigger mechanism is fixedly installed on one side of the cutter bar fixing frame and comprises a trigger protection bin, a trigger rotating ring is arranged in the trigger protection bin, a trigger pressure plate is arranged on one side of the trigger rotating ring, and the trigger pressure plate is arranged on the other side of the trigger rotating ring. A warning mechanism is fixedly installed in the trigger protection bin, trigger positioning frames are arranged on the two sides of the trigger rotating ring, the trigger positioning frames and the trigger protection bin are fixedly installed, and a plurality of evenly-distributed trigger friction balls are installed between the trigger positioning frames and the trigger rotating ring. According to the cutter bar of the numerical control machine machining cutter, due to the arrangement of corresponding mechanisms, after the vibration reduction cutter bar rotates and deviates, warning can be conducted in time, an operator can find the deviation in time and stop the machine in time, the influence on machining precision is reduced, the probability that workpieces are scrapped is reduced, and machining losses are reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of CNC machining tool holders, specifically relating to a CNC machining tool holder. Background Technology

[0002] A CNC tool holder is an intermediate component that connects the machine spindle to the cutting tool or workpiece. Its main function is to fix and support the cutting tool and transmit the cutting force to the workpiece. The tool holder is usually fixed by the machine spindle through a clamping element (such as a spring collet) and is used to process parts with small diameters and high precision requirements.

[0003] A CNC tool holder typically consists of: the tool holder body, a connecting part, a clamping cap, and a flexible clamping device. The tool holder body is the main part of the tool holder, usually made of high-strength alloy material, and is used to support and connect the cutting tool. The connecting part is used to connect the tool holder to the machine tool spindle or other accessories (such as taper shanks) to ensure precise alignment and stable connection. The clamping cap and flexible clamping device are used to fix the insert or tool head and ensure its stability during machining. The design of the clamping cap also needs to consider heat dissipation performance to extend tool life. CNC tool holders can be divided into steel tool holders, carbide tool holders, and vibration-damping tool holders. Among them, vibration-damping tool holders have a damping structure inside, which can suspend deep hole machining or thin-walled parts with a diameter of 7-14 times.

[0004] Currently, in the use of vibration damping tool holders, the tool head is fixed, and the workpiece is machined by its own displacement or the workpiece's rotation. At present, vibration damping tool holders are mostly tightened to the side of the tool holder with set screws, and the tool holder's deformation clamps the vibration damping tool holder. Although this can fix the vibration damping tool holder, there is still a risk of the tool holder rotating and shifting under force during machining. Existing vibration damping tool holders do not have a rotation warning mechanism, and whether the vibration damping tool holder has shifted can only be observed by the operator with the naked eye. It can only be discovered after a period of time, making it impossible to stop in time. This not only affects the machining accuracy but also easily causes the workpiece to be scrapped, resulting in losses.

[0005] Therefore, in order to address the above-mentioned technical problems, it is necessary to provide a CNC machining tool holder.

[0006] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0007] The purpose of this utility model is to provide a CNC machining tool holder that can solve the problem of existing vibration damping tool holders having the risk of rotational deviation, which cannot be detected and stopped in time, affecting machining accuracy and causing workpiece scrap.

[0008] To achieve the above objectives, a specific embodiment of the present invention provides a CNC machining tool holder, including: a tool holder fixing frame, a triggering mechanism, and a warning mechanism;

[0009] A triggering mechanism is fixedly installed on one side of the tool holder fixing frame. The triggering mechanism includes a trigger protection chamber, a trigger rotating ring is provided inside the trigger protection chamber, and a trigger pressure plate is provided on one side of the trigger rotating ring.

[0010] A warning mechanism is fixedly installed inside the trigger protection chamber.

[0011] In one or more embodiments of this utility model, trigger positioning frames are provided on both sides of the trigger ring, which can position the trigger ring, improve the stability of the trigger ring, reduce the probability of the trigger ring tilting, improve the stability of the trigger ring when rotating, and ensure the position of the trigger ring.

[0012] The trigger positioning frame is fixedly installed with the trigger protection chamber, which improves the stability of the trigger positioning frame and enhances its fixing effect.

[0013] In one or more embodiments of this utility model, a plurality of evenly distributed trigger friction balls are installed between the trigger positioning frame and the trigger rotating ring, which reduces the friction between the trigger positioning frame and the trigger rotating ring, making the rotation of the trigger rotating ring smoother and improving the stability of the trigger rotating ring.

[0014] The trigger positioning frame has a positioning groove that matches the trigger friction ball, which reduces the probability of the trigger friction ball detaching and can position the trigger friction ball, thus reducing the probability of the trigger friction ball falling off.

[0015] In one or more embodiments of this utility model, a trigger friction pad is fixedly installed on the side of the trigger pressure plate near the trigger protection chamber, which can fit in contact with the vibration damping blade rod. The rotation of the trigger pressure plate is driven by the squeezing and friction forces. When the vibration damping blade rod rotates off-center, it can drive the trigger pressure plate to rotate synchronously.

[0016] Several evenly distributed trigger connecting rods are slidably installed inside the trigger rotating ring, connecting the trigger rotating ring and the trigger pressure plate. This allows the rotation of the trigger pressure plate to drive the rotation of the trigger rotating ring, and at the same time, to drive the sliding of the trigger pressure plate, so that the trigger pressure plate can better fit and squeeze the vibration damping knife rod.

[0017] In one or more embodiments of this utility model, the trigger ring is provided with a pull groove that matches the trigger connecting rod, which facilitates the installation of the trigger spring, provides corresponding space for the installation of the trigger spring, and limits the sliding of the trigger connecting rod.

[0018] A trigger spring is installed between the trigger connecting rod and the trigger rotating ring, which can compress the trigger connecting rod and pull the trigger pressure plate, making the compression of the damping blade rod by the trigger pressure plate more stable and allowing the damping blade rod to better drive the rotation of the trigger pressure plate. The trigger connecting rod and the trigger pressure plate are fixedly installed.

[0019] In one or more embodiments of this utility model, the warning mechanism includes a warning guide plate, which can improve the stability of the warning balance bar, facilitate the installation of the warning balance bar, and position the warning pull rope so that the displacement of the warning pull rope can be guided by the warning guide plate.

[0020] A pair of warning balance bars are fixedly installed on the lower side of the warning guide plate, which improves the stability of the warning lifting plate, reduces the probability of the warning lifting plate detaching, ensures the balance of the warning lifting plate, and reduces the probability of the warning lifting plate tilting.

[0021] In one or more embodiments of this utility model, a warning lifting plate is slidably installed on a pair of warning balance bars, which can be pulled by a warning pull rope to trigger a warning button. The warning balance bar passes through the warning lifting plate.

[0022] In one or more embodiments of this utility model, a warning pull rope is installed between the warning lifting plate and the trigger protection chamber. The rotation of the trigger ring can pull the warning pull rope, causing the warning pull rope to drive the warning lifting plate to rise and trigger the warning button. The warning pull rope passes through the warning guide plate.

[0023] In one or more embodiments of this utility model, the outer sleeve of the warning balance bar is provided with a warning spring, which can squeeze the warning lifting plate, causing the warning lifting plate to rise and trigger the warning button, and then it can descend to return to its original position.

[0024] The warning spring is located between the warning guide plate and the warning lifting plate, which improves the stability of the warning spring, reduces the probability of the warning spring detaching, and improves the balance of the warning spring.

[0025] In one or more embodiments of this utility model, a pair of warning buttons are fixedly installed on the side of the warning guide plate near the warning lifting plate, which can be triggered by the warning lifting plate. An audible and visual alarm is fixedly installed on one side of the trigger protection chamber, which can provide audible and visual alarm.

[0026] Compared with the prior art, the CNC machining tool holder of this utility model, through the setting of a corresponding mechanism, can promptly warn the operator when the vibration damping tool holder deviates during rotation, so that the operator can notice it in time and stop the machine in time. This not only reduces the impact on machining accuracy, but also reduces the probability of workpiece scrap and reduces machining losses. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a first perspective cross-sectional view of an embodiment of the present invention;

[0029] Figure 2 for Figure 1 Schematic diagram of the structure at point A in the middle;

[0030] Figure 3 for Figure 1 Schematic diagram of the structure at point B;

[0031] Figure 4 This is a second perspective cross-sectional view of an embodiment of the present invention;

[0032] Figure 5 for Figure 4 Schematic diagram of the structure at point C;

[0033] Figure 6 This is a perspective view of one embodiment of the present invention.

[0034] Explanation of key figure labels:

[0035] 1-Tool holder fixing frame, 2-Triggering mechanism, 201-Triggering protection chamber, 202-Triggering rotating ring, 203-Triggering pressure plate, 204-Triggering positioning frame, 205-Triggering friction ball, 206-Triggering friction pad, 207-Triggering connecting rod, 208-Triggering spring, 3-Warning mechanism, 301-Warning guide plate, 302-Warning balance bar, 303-Warning lifting plate, 304-Warning pull rope, 305-Warning spring, 306-Warning button, 307-Audible and visual alarm. Detailed Implementation

[0036] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0037] like Figures 1 to 6 As shown, a CNC machining tool holder in one embodiment of the present invention includes: a tool holder fixing frame 1, a triggering mechanism 2, and a warning mechanism 3.

[0038] like Figures 1 to 5 As shown, a triggering mechanism 2 is fixedly installed on one side of the tool holder 1. The triggering mechanism 2 includes a trigger protection chamber 201, which can protect the various structures inside the trigger protection chamber 201 and improve the service life.

[0039] The trigger protection chamber 201 is equipped with a trigger rotating ring 202, which can be rotated by the trigger connecting rod 207, and the warning pull rope 304 can be pulled by the rotation.

[0040] In addition, a trigger pressure plate 203 is provided on one side of the trigger ring 202, which can squeeze the vibration damping blade rod, thereby increasing the friction between the vibration damping blade rod and the trigger pressure plate 203, so that the vibration damping blade rod can drive the trigger ring 202 to rotate.

[0041] like Figures 1 to 3 As shown, trigger positioning frames 204 are provided on both sides of the trigger ring 202, which can position the trigger ring 202, improve the stability of the trigger ring 202, reduce the probability of the trigger ring 202 tilting, improve the stability of the trigger ring 202 when rotating, and ensure the position of the trigger ring 202.

[0042] The trigger positioning frame 204 is fixedly installed with the trigger protection chamber 201, which improves the stability of the trigger positioning frame 204 and enhances its fixing effect.

[0043] like Figures 1 to 3 As shown, a number of evenly distributed trigger friction balls 205 are installed between the trigger positioning frame 204 and the trigger rotating ring 202, which reduces the friction between the trigger positioning frame 204 and the trigger rotating ring 202, making the rotation of the trigger rotating ring 202 smoother and improving the stability of the trigger rotating ring 202.

[0044] In addition, the trigger positioning frame 204 has a positioning groove that matches the trigger friction ball 205, which reduces the probability of the trigger friction ball 205 falling off and can position the trigger friction ball 205, thus reducing the probability of the trigger friction ball 205 falling off.

[0045] like Figures 1 to 6 As shown, a trigger friction pad 206 is fixedly installed on the side of the trigger pressure plate 203 near the trigger protection chamber 201, which can fit in contact with the vibration damping blade. The rotation of the trigger pressure plate 203 is driven by the squeezing and friction forces. When the vibration damping blade deviates from its rotation, it can drive the trigger pressure plate 203 to rotate synchronously.

[0046] In addition, several evenly distributed trigger connecting rods 207 are slidably installed inside the trigger ring 202, connecting the trigger ring 202 and the trigger pressure plate 203. This allows the rotation of the trigger pressure plate 203 to drive the rotation of the trigger ring 202, and at the same time, it can drive the sliding of the trigger pressure plate 203, so that the trigger pressure plate 203 can better fit and squeeze the vibration damping knife bar.

[0047] like Figures 1 to 5 As shown, the trigger ring 202 has a pull groove that matches the trigger connecting rod 207, which facilitates the installation of the trigger spring 208, provides the corresponding space for the installation of the trigger spring 208, and limits the sliding of the trigger connecting rod 207.

[0048] In addition, a trigger spring 208 is installed between the trigger connecting rod 207 and the trigger rotating ring 202, which can compress the trigger connecting rod 207, causing the trigger connecting rod 207 to pull the trigger pressure plate 203, making the compression of the vibration damping knife rod by the trigger pressure plate 203 more stable, and making the vibration damping knife rod better drive the rotation of the trigger pressure plate 203. The trigger connecting rod 207 and the trigger pressure plate 203 are fixedly installed.

[0049] like Figures 1 to 4 As shown, a warning mechanism 3 is fixedly installed inside the trigger protection chamber 201. The warning mechanism 3 includes a warning guide plate 301, which can improve the stability of the warning balance bar 302, facilitate the installation of the warning balance bar 302, and at the same time, can position the warning pull rope 304 so that the displacement of the warning pull rope 304 can be guided by the warning guide plate 301.

[0050] Among them, a pair of warning balance bars 302 are fixedly installed on the lower side of the warning guide plate 301, which improves the stability of the warning lifting plate 303, reduces the probability of the warning lifting plate 303 falling off, ensures the balance of the warning lifting plate 303, and reduces the probability of the warning lifting plate 303 tilting.

[0051] like Figures 1 to 3As shown, a warning lifting plate 303 is slidably installed on a pair of warning balance bars 302, which can be pulled by the warning pull rope 304, so that the warning lifting plate 303 triggers the warning button 306, and the warning balance bar 302 is set through the warning lifting plate 303.

[0052] like Figures 1 to 6 As shown, a warning pull rope 304 is installed between the warning lifting plate 303 and the trigger protection chamber 201. The rotation of the trigger ring 202 can pull the warning pull rope 304, causing the warning pull rope 304 to drive the warning lifting plate 303 to rise, triggering the warning button 306. The warning pull rope 304 is set through the warning guide plate 301.

[0053] like Figures 1 to 3 As shown, the warning balance bar 302 is fitted with a warning spring 305, which can squeeze the warning lifting plate 303, causing the warning lifting plate 303 to rise and trigger the warning button 306, after which it can descend and return to its original position.

[0054] In addition, the warning spring 305 is located between the warning guide plate 301 and the warning lifting plate 303, which improves the stability of the warning spring 305, reduces the probability of the warning spring 305 detaching, and improves the balance of the warning spring 305.

[0055] like Figures 1 to 6 As shown, a pair of warning buttons 306 are fixedly installed on the side of the warning guide plate 301 near the warning lifting plate 303, which can be triggered by the warning lifting plate 303. An audible and visual alarm 307 is fixedly installed on the side of the trigger protection chamber 201, which can provide audible and visual alarm.

[0056] In practical use, after installation, the vibration damping blade rod can be attached to the trigger friction pad 206. The pressure of the trigger pressure plate 203 on the trigger friction pad 206 will cause any rotational deviation of the vibration damping blade rod to be directly transmitted to the trigger pressure plate 203. Driven by the trigger connecting rod 207, the trigger rotating ring 202 can rotate synchronously. At the same time, the rotation of the trigger rotating ring 202 will cause the warning pull rope 304 to pull the warning lifting plate 303, causing the warning lifting plate 303 to rise and trigger the warning button 306, which will cause the audible and visual alarm 307 to sound and light an alarm to remind the operator.

[0057] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0058] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A CNC machining tool holder, characterized in that, include: Tool holder holder; A triggering mechanism is fixedly installed on one side of the tool holder fixing frame. The triggering mechanism includes a trigger protection chamber, a trigger rotating ring is provided inside the trigger protection chamber, and a trigger pressure plate is provided on one side of the trigger rotating ring. The warning mechanism is fixedly installed inside the trigger protection chamber.

2. The CNC machining tool holder according to claim 1, characterized in that, Both sides of the trigger rotating ring are provided with trigger positioning frames, which are fixedly installed with the trigger protection chamber.

3. A CNC machining tool holder according to claim 2, characterized in that, Several evenly distributed trigger friction balls are installed between the trigger positioning frame and the trigger rotating ring, and the trigger positioning frame is chiseled with positioning grooves that match the trigger friction balls.

4. A CNC machining tool holder according to claim 3, characterized in that, A trigger friction pad is fixedly installed on the side of the trigger pressure plate near the trigger protection chamber, and several evenly distributed trigger connecting rods are slidably installed inside the trigger rotating ring.

5. A CNC machining tool holder according to claim 4, characterized in that, The trigger ring has a pull groove that matches the trigger connecting rod. A trigger spring is installed between the trigger connecting rod and the trigger ring. The trigger connecting rod is fixedly installed with the trigger pressure plate.

6. A CNC machining tool holder according to claim 1, characterized in that, The warning mechanism includes a warning guide plate, and a pair of warning balance bars are fixedly installed on the lower side of the warning guide plate.

7. A CNC machining tool holder according to claim 6, characterized in that, A warning lifting plate is slidably mounted on a pair of warning balance bars, and the warning balance bars are arranged through the warning lifting plates.

8. A CNC machining tool holder according to claim 7, characterized in that, A warning pull rope is installed between the warning lifting plate and the trigger protection chamber, and the warning pull rope passes through the warning guide plate.

9. A CNC machining tool holder according to claim 8, characterized in that, The warning balance bar is fitted with a warning spring, which is located between the warning guide plate and the warning lifting plate.

10. A CNC machining tool holder according to claim 9, characterized in that, A pair of warning buttons are fixedly installed on the side of the warning guide plate near the warning lifting plate, and an audible and visual alarm is fixedly installed on the side of the trigger protection chamber.

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