Machining cutter handle

Abstract

The utility model discloses a machining cutter handle, and relates to the technical field of machining, and the machining cutter handle comprises a cutter handle shaft, a monitoring module and a sealing ring group; the monitoring module comprises a monitoring piece, a waterproof shell, an acquisition board and a battery assembly; the machining cutter handle can be suitable for complex working conditions, physical information such as pressure, strain and temperature can be stably collected under the complex working conditions, the collection frequency can reach up to 10240 Hz, the collected physical information can be transmitted to a post-processing module to be processed and analyzed, and a basis is provided for intelligent production.

Description

TECHNICAL FIELD

[0001] The utility model relates to machining technical field especially is related to a machining tool holder. BACKGROUND

[0002] The traditional tool monitoring method usually relies on manual inspection and cannot monitor the temperature and vibration and other working conditions in the actual machining process in real time and effectively, the existing intelligent monitoring tool holder can represent the thermal field distribution and material deformation state in the machining process through the integrated sensor, thereby greatly helping the user to judge the quality of the machined component, promoting the preparation of the component with high comprehensive performance, and significantly improving the production efficiency and reducing the material and time cost.

[0003] The existing problems are that: 1, the monitoring structure is not stable in installation, is easily affected by the high-speed rotation of the tool holder, and then leads to unstable signal acquisition; 2, limited by the machining conditions in the larger humidity and liquid environment, the liquid environment not only damages the service life of the tool holder itself but also affects the transmission stability of the signal, but when machining high-melting-point materials such as titanium alloy, stainless steel and nickel-based alloy, timely and sufficient cooling and lubricating environment is extremely necessary. UTILITY MODEL CONTENTS

[0004] The utility model provides a machining tool holder to solve the problem in prior art.

[0005] The machining tool holder of the utility model includes a tool holder shaft, a monitoring module and a sealing ring group, the tool holder shaft is provided with a shaft shoulder surface, the shaft shoulder surface is provided with a clamping groove, the monitoring module includes a monitoring piece, a waterproof shell, an acquisition plate and a battery assembly, the monitoring piece is arranged on the outer periphery of the tool holder shaft and is used for collecting the physical information of the tool holder shaft, the waterproof shell is sleeved on the tool holder shaft and is connected with the tool holder shaft, and the waterproof shell is arranged around the monitoring piece; the top surface of the waterproof shell is attached to the shaft shoulder surface, the top surface of the waterproof shell is provided with a clamping block, and the clamping block is arranged in the clamping groove; the acquisition plate and the battery assembly are both arranged in the waterproof shell, and the acquisition plate is connected with the monitoring piece and the battery assembly respectively; and the sealing ring group is arranged between the waterproof shell and the outer periphery of the tool holder shaft.

[0006] The machining tool holder of the utility model has the beneficial effects that:

[0007] The tool holder shaft of the utility model is provided with a shaft shoulder surface, the waterproof shell is positioned in the axial direction through the shaft shoulder surface, the waterproof shell is stably installed on the tool holder shaft through the cooperation of the clamping groove and the clamping block, a stable environment is provided for the monitoring piece and the acquisition plate to collect the physical information of the tool holder shaft, the stability of signal acquisition is realized, the sealing ring group is arranged between the waterproof shell and the tool holder shaft to isolate the monitoring piece from the external environment, the utility model can effectively protect the monitoring module from being affected in the face of larger humidity and liquid environment, and the durability and safety are improved. Attached Figure Description

[0008] 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 of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0009] Figure 1 This is a schematic diagram of the structure of the machining tool holder of this application (showing the cutting tool);

[0010] Figure 2 yes Figure 1 Schematic diagram of the structure of the tool holder shaft;

[0011] Figure 3 This is a vertical cross-sectional view of the machining tool holder of this application;

[0012] Figure 4 This is a horizontal cross-sectional view of the machining tool holder of this application;

[0013] Figure 5 This is a schematic diagram of the waterproof casing of this application from the first angle;

[0014] Figure 6 This is a schematic diagram of the waterproof casing of this application from a second angle;

[0015] Figure 7 yes Figure 3 Enlarged view of point A in the middle;

[0016] Figure 8 yes Figure 3 Enlarged view of point B in the middle;

[0017] The markings in the attached diagram are explained as follows:

[0018] 100. Tool holder shaft; 110. Shoulder face; 120. Snap groove; 130. Variable diameter section; 140. Threaded hole;

[0019] 200. Monitoring module; 210. Monitoring component; 220. Waterproof housing; 221. Annular inner shell; 222. Annular outer shell; 223. Top cover; 224. Bottom cover; 225. Connection hole; 230. Data acquisition board; 240. Battery assembly; 241. Battery; 242. Charging circuit board; 243. Charging port; 250. Locking block; 260. Plug; 270. Installation space;

[0020] 300, Sealing ring assembly; 310, First sealing ring; 320, Second sealing ring. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0022] like Figure 1 As shown, this embodiment provides a machining tool holder, which includes a tool holder shaft 100, a monitoring module 200, and a sealing ring assembly 300.

[0023] like Figure 2 As shown, the upper end of the tool holder shaft 100 is connected to the machining equipment and can rotate under the drive of the machining equipment. The lower end of the tool holder shaft 100 is connected to the cutting tool. In this embodiment, the cutting tool can be a milling cutter, a drill bit, etc., and this embodiment does not limit the cutting tool. The tool holder shaft 100 has a shoulder surface 110, which is perpendicular to the axial direction of the tool holder shaft 100. The shoulder surface 110 is used for the positioning and installation of the monitoring module 200 (specifically, the waterproof housing 220). A slot 120 is provided on the shoulder surface 110. The slot 120 is recessed along the axial direction. The number of slots 120 can be one or more, and multiple slots 120 are arranged along the circumference of the tool holder shaft 100. In this embodiment, it is preferred that the number of slots 120 is two. In this embodiment, the tool holder shaft 100 has a variable diameter section 130 at the middle position. The variable diameter section 130 has a certain length along the axial direction. The variable diameter section 130 is located below the shoulder surface 110. The outer diameter of the variable diameter section 130 is smaller than the outer diameter of other positions of the tool holder shaft 100. That is, the variable diameter section 130 is configured as the thinnest section on the tool holder shaft 100.

[0024] like Figure 3 and Figure 4As shown, the monitoring module 200 includes a monitoring element 210, a waterproof housing 220, a data acquisition board 230, and a battery assembly 240. The monitoring element 210 is disposed on the outer periphery of the tool holder shaft 100 and is used to collect physical information of the tool holder shaft 100. In this embodiment, the monitoring element 210 is disposed on the outer periphery of the variable diameter section 130 of the tool holder shaft 100. The monitoring element 210 includes strain gauges, temperature sensors, pressure sensors, sound sensors, and / or electromagnetic sensors. The monitoring element 210 may also include other physical sensors. The monitoring element 210 can collect physical information such as pressure, strain, or temperature (the acquisition frequency can be up to 10240Hz and the physical information can be transmitted to an external post-processing module through the data acquisition board). Of course, in addition to the physical information listed above, the monitoring element 210 in this embodiment may also include other types of sensors to obtain other required physical quantities. This embodiment does not limit the scope of the measurement. A waterproof housing 220 is coaxially sleeved on the outer periphery of the tool holder shaft 100. The waterproof housing 220 circumferentially surrounds the variable diameter section 130 of the tool holder shaft 100, enclosing the monitoring element 210 within the variable diameter section 130, thereby isolating the monitoring element 210 from the external environment and ensuring a stable working environment for the monitoring element 210. The waterproof housing 220 is connected to the tool holder shaft 100, and rotates along with the tool holder shaft 100. The upper top surface of the waterproof housing 220 abuts against the shoulder surface 110, restricting the axial position of the waterproof housing 220 through the shoulder surface 110, thus achieving a limiting purpose. In this embodiment, the upper top surface of the waterproof housing 220 is provided with a locking block 250 extending upward in the axial direction (e.g., ...). Figure 5As shown, the locking block 250 can be inserted into the slot 120, thereby stabilizing the relative position of the waterproof housing 220 and the tool holder shaft 100. In some preferred embodiments, the locking block 250 and the slot 120 are arranged in a one-to-one correspondence. By having multiple slots 120 and locking blocks 250 cooperate with each other, the stability of the waterproof housing 220 when rotating with the tool holder shaft 100 is further achieved. The acquisition plate 230 is disposed inside the waterproof housing 220 and connected to the interior of the waterproof housing 220. The acquisition plate 230 and the monitoring element 210 are electrically connected by wires. The acquisition plate 230 can acquire the physical information monitored by the monitoring element 210 and transmit it to the external post-processing module wirelessly or wiredly. The specific structural form of the acquisition plate 230 can refer to the prior art, and is not limited in this embodiment. The battery assembly 240 is disposed inside the waterproof housing 220 and is electrically connected to the acquisition plate 230 by wires. The battery assembly 240 can supply power to the acquisition plate 230. In some preferred embodiments, the battery assembly 240 includes a battery 241 and a charging circuit board 242. The battery 241 is disposed in the installation space and is securely fixed in the installation space. The battery 241 can be secured in the installation space by means of adhesive or limiting groove. The battery 241 is electrically connected to the charging circuit board 242 and the acquisition board 230 through wires. The charging circuit board 242 is disposed on the annular shell 222 and has a charging port 243. The charging port 243 is exposed on the outside of the annular shell 222. The external structure can charge the battery 241 through the charging port 243. The charging port 243 is provided with a plug 260 to prevent damage or even scrapping of the monitoring element 210 and the acquisition board 230 under complex working conditions (such as when the cutting fluid is used for real-time cooling and lubrication, or when there is a lot of dust and flying chips on the workpiece).

[0025] In some preferred embodiments, such as Figure 5 and Figure 6As shown, the waterproof housing 220 includes an annular inner shell 221, an annular outer shell 222, a top cover 223, and a bottom cover 224. The annular inner shell 221 and the annular outer shell 222 are coaxially fitted together, and the annular inner shell 221 and the annular outer shell 222 have a certain radial distance. The annular inner shell 221 is coaxially fitted around the diameter-changing section 130. The top cover 223 is disposed on the top of the annular inner shell 221 and the annular outer shell 222. The surface of the top cover 223 facing away from the bottom cover 224 (i.e., the top surface) is fitted and abuts against the shoulder surface 110 on the tool holder shaft 100. Multiple locking blocks 250 are disposed on the top surface of the top cover 223. In this embodiment, the annular inner shell 221, the annular outer shell 222, and the top cover 223 are integrally formed, resulting in higher structural strength. In some preferred embodiments, the annular inner shell 221, the annular outer shell 222, the top cover 223, and the locking blocks 250 are integrally formed, which can improve the structural strength of the locking blocks 250. An annular cavity is formed between the annular inner shell 221, the annular outer shell 222, and the top cover 223. This annular cavity is defined as the installation space 270. The acquisition plate 230 and the battery assembly 240 are both disposed in the installation space. The bottom cover 224 is disposed at the bottom of the annular inner shell 221 and the annular outer shell 222. The bottom cover 224 can close the opening of the annular cavity, so that the installation space 270 can achieve a sealing function, which is convenient for protecting the structure in the installation space. In this embodiment, the bottom cover 224 is detachably disposed at the bottom of the annular inner shell 221 and the annular outer shell 222. The detachable method is, for example, screw connection. In this embodiment, the bottom cover 224 is connected to the bottom of the annular outer shell 222 by multiple screws (not shown).

[0026] In some preferred embodiments, such as Figure 7 As shown, the top cover 223 is provided with a connecting hole 225 radially opened along the tool holder shaft 100. The tool holder shaft 100 is provided with a threaded hole 140 corresponding to the connecting hole 225. The number of connecting holes 225 and threaded holes 140 is at least two, and multiple connecting holes 225 and threaded holes 140 are spaced apart circumferentially. Along the axial direction of the tool holder shaft 100, the distance H1 from the center of the connecting hole 225 to the shoulder surface 110 is greater than the distance H2 from the center of the threaded hole 140 to the shoulder surface 110. A threaded component (e.g., a nut screw) passes through the connecting hole 225 and is threaded into the threaded hole 140. In this embodiment, the threaded component being threaded into the threaded hole 140 enables the top cover 223 to generate an upward force and achieve a tight press between the top cover 223 and the shoulder surface 110. This achieves a tight connection between the two and creates a sealed position, preventing external cutting fluid and other substances from entering the variable diameter section 130 of the tool holder shaft 100 and affecting the operation of the monitoring component 210.

[0027] like Figure 8As shown, the sealing ring assembly 300 includes a first sealing ring 310. A first sealing groove is provided on the tool holder shaft 100, and the first sealing rings 310 are installed in the first sealing groove one by one. Along the radial direction of the tool holder shaft 100, the first sealing rings 310 are located between the tool holder shaft 100 and the waterproof housing 220. The first sealing rings 310 seal the gap between the tool holder shaft 100 and the waterproof housing 220, thereby providing a sealed environment for the monitoring component 210 covered by the waterproof housing 220. In some preferred embodiments, the number of first sealing rings 310 can be one or more. When there is only one first sealing ring 310, the first sealing ring 310 is located between the tool holder shaft 100 and the bottom cover 224. When the number of first sealing rings 310 is one, the first sealing ring 310 is located between the tool holder shaft 100 and the bottom cover 224. When there are two or more sealing rings 310, multiple first sealing rings 310 are spaced apart along the axial direction of the tool holder shaft 100. For example, when there are two first sealing rings 310, one first sealing ring 310 is located between the tool holder shaft 100 and the upper end (specifically the inner circumferential surface of the upper end) of the annular inner shell 221, and the other first sealing ring 310 is located between the tool holder shaft 100 and the bottom cover 224. The bonding position of the monitoring element 210 (i.e., the variable diameter section 130 of the tool holder shaft 100) is located between these two first sealing rings 310.

[0028] In some preferred embodiments, such as Figure 7 As shown, the sealing ring assembly 300 also includes a second sealing ring 320. The second sealing ring 320 is coaxially sleeved on the outer periphery of the tool holder shaft 100 and along the axial direction of the tool holder shaft 100. The second sealing ring 320 is located between the top surface of the top cover 223 and the shoulder surface 110. When the top cover 223 is pressed upward against the shoulder surface 110 under the pressure of a threaded component (e.g., a nut screw, not shown), the second sealing ring 320 is deformed by the compression of the top cover 223, thus achieving a seal between the top cover 223 and the shoulder surface 110. A second sealing groove is provided on the shoulder surface 110 or the top surface of the top cover 223, and a second sealing element is disposed within the second sealing groove. In this embodiment, both the first sealing ring 310 and the second sealing ring 320 are preferably flexible sealing rings, which can deform under external pressure to achieve a sealing effect.

[0029] The machining tool holder in this embodiment can collect physical information such as pressure, strain, and temperature at a frequency of up to 10240Hz and transmit the collected physical information to the post-processing module for processing and analysis, providing a foundation for intelligent manufacturing.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A machine tool holder, characterized in that The tool shank shaft (100), the monitoring module (200) and the sealing ring group (300) are included. The tool shank shaft (100) is provided with a shaft shoulder surface (110), and the shaft shoulder surface (110) is provided with a clamping groove (120). The monitoring module (200) includes a monitoring piece (210), a waterproof shell (220), a collection plate (230) and a battery assembly (240). The monitoring piece (210) is arranged on the outer periphery of the tool shank shaft (100) and is used for collecting physical information of the tool shank shaft (100). The waterproof shell (220) is sleeved on the tool shank shaft (100) and is connected with the tool shank shaft (100). The waterproof shell (220) is annularly arranged around the monitoring piece (210). The top surface of the waterproof shell (220) is attached to the shaft shoulder surface (110), and the top surface of the waterproof shell (220) is provided with a clamping block (250), which is arranged in the clamping groove (120). The collection plate (230) and the battery assembly (240) are arranged in the waterproof shell (220), and the collection plate (230) is connected with the monitoring piece (210) and the battery assembly (240) respectively. The sealing ring group (300) is arranged between the waterproof shell (220) and the outer periphery of the tool shank shaft (100).

2. The machine tool holder according to claim 1, characterized in that The tool shank shaft (100) is provided with a variable diameter section (130), which is configured as the position with the smallest outer diameter on the tool shank shaft (100). The monitoring piece (210) is arranged on the outer periphery of the variable diameter section (130).

3. The machine tool holder according to claim 2, characterized in that The monitoring piece (210) includes a strain gauge, a temperature sensor, a pressure sensor, a sound sensor and / or an electromagnetic sensor.

4. The machine tool holder according to claim 1, characterized in that The tool shank shaft (100) is provided with a plurality of clamping grooves (120) along the circumference thereof, and the clamping block (250) is correspondingly clamped with the clamping groove (120).

5. The machine tool holder according to claim 1, characterized in that The waterproof shell (220) includes an annular inner shell (221), an annular outer shell (222), a top cover (223) and a bottom cover (224). The annular inner shell (221) and the annular outer shell (222) are coaxially sleeved, the top cover (223) is connected to the top of the annular inner shell (221) and the annular outer shell (222), the outer periphery of the annular inner shell (221), the inner periphery of the annular outer shell (222) and the top cover (223) form a mounting space (270), the collection plate (230) and the battery assembly (240) are arranged in the mounting space, the bottom cover (224) is detachably connected to the annular outer shell (222) and is used for closing the mounting space, the top cover (223) is attached to the shaft shoulder surface (110), and the clamping block (250) is arranged on the top cover (223).

6. The machine tool holder according to claim 5, characterized in that The annular inner shell (221), the annular outer shell (222), the top cover (223) and the clamping block (250) are integrally formed.

7. The machine tool holder according to claim 6, characterized in that The top cover (223) is provided with a connecting hole (225) radially opened along the shank shaft (100), the shank shaft (100) is provided with a threaded hole (140), the distance from the axis of the connecting hole (225) to the shoulder surface (110) is greater than the distance from the axis of the threaded hole (140) to the shoulder surface (110), and a threaded member is threaded through the connecting hole (225) and is threadedly connected with the threaded hole (140).

8. The machine tool holder according to any one of claims 1 to 7, characterized in that The sealing ring group (300) comprises a first sealing ring (310), the shank shaft (100) is provided with a first sealing groove for mounting the first sealing ring (310), and the first sealing ring (310) is located between the waterproof shell (220) and the shank shaft (100).

9. The machine tool holder according to claim 7, characterized in that The sealing ring group (300) further comprises a second sealing ring (320), the second sealing ring (320) is sleeved on the shank shaft (100), and the second sealing ring (320) is located between the shoulder surface (110) and the top cover (223).

10. The machine tool holder according to any one of claims 5 to 7, characterized in that The battery assembly (240) comprises a battery (241) and a charging circuit board (242); the battery (241) is arranged in the mounting space, the battery (241) is connected with the charging circuit board (242) and the acquisition board (230), the charging circuit board (242) is arranged on the annular shell (222), and a charging port (243) of the charging circuit board (242) is exposed to the outside of the annular shell (222); and the charging port (243) is provided with a plug (260).

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