High-precision adjustable positioning workbench suitable for deep hole drilling of brittle and hard materials

Abstract

The invention relates to the technical field of deep hole drilling equipment, and discloses a high-precision adjustable positioning workbench suitable for deep hole drilling of hard and brittle materials. The high-precision adjustable positioning workbench comprises a supporting plate rotationally connected to the outer walls of the ends, away from an arc-shaped groove, of a plurality of first supporting rods, and first auxiliary rods are rotationally connected to the outer walls of the first supporting rods; an auxiliary rod II is rotationally connected to the inner wall of the auxiliary rod I; due to the fact that the first supporting rod, the second supporting rod, the first auxiliary rod and the second auxiliary rod are rotationally connected in an end-to-end mode, finally, pressure borne by the supporting plate can be transmitted to the other side through the operation mechanism, the supporting plate on the other side is forced to be close to the deep hole digging and drilling tool, and due to the fact that the operation mechanism falls behind the motion of the deep hole digging and drilling tool, the deep hole digging and drilling tool cannot be damaged. Under the high-speed operation of the deep hole drilling tool, when the bending position of the deep hole drilling tool reaches the supporting plate on the other side, pressure can be generated on the supporting plate, and then the pressure applied by the deep hole drilling tool can be transferred to the supporting plate to be balanced to a certain part; therefore, the influence of bending generated by a part of the deep hole drilling tool on machining is reduced.

Description

A high-precision adjustable positioning worktable suitable for deep hole drilling of brittle and hard materials Technical Field

[0001] This invention relates to the field of deep hole drilling equipment technology, specifically a high-precision adjustable positioning worktable suitable for deep hole drilling of brittle and hard materials. Background Technology

[0002] In high-end manufacturing fields such as aerospace, semiconductors, optical engineering, and new energy, brittle and hard materials such as sapphire single crystals, silicon carbide, aluminum nitride, quartz glass, and ceramic matrix composites have become key materials for manufacturing core components due to their excellent mechanical, thermal, and electrical properties. For example, silicon carbide substrates are the core carriers of third-generation semiconductor devices, while sapphire is widely used in components such as smartphone lenses and aerospace optical windows; ceramic matrix composites are increasingly used in high-temperature load-bearing components such as turbine blades in aero-engines. The processing precision of these materials directly determines the performance and reliability of the end products. Among them, deep hole drilling, as a typical precision machining method, is widely used to prepare key structures such as fuel injection holes, cooling channel holes, and signal transmission holes.

[0003] In actual machining, the cutting force is concentrated when cutting hard and brittle materials, especially in deep hole machining where the tool overhang is large and is prone to bending deformation. Most existing equipment uses rigid materials to directly support the tool. During long-term machining, the bending deformation of the tool will rub against the rigid support mechanism, which will easily cause wear on the tool. It will also have a certain impact on the concentricity and accuracy of the tool, ultimately affecting the machining quality. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a high-precision adjustable positioning worktable suitable for deep hole drilling of brittle and hard materials, including a base plate, an intermediate plate fixedly connected to the top outer wall of the base plate, and an upper vertical support fixedly connected to the end of the intermediate plate away from the base plate. It also includes: a drive mechanism fixedly disposed on the top outer wall of the base plate for driving a cutting tool to drill through the material; a support mechanism rotatably disposed on the outer wall of the drive mechanism for supporting the cutting tool; and a limiting mechanism fixedly disposed on the outer wall of the support mechanism for limiting a portion of the structure within the support mechanism. The base plate includes several support columns fixed thereon. A lower support plate is fixedly connected to the wall, and a workpiece fixture is fixedly connected to the side of the lower support plate away from the base plate. A spindle motor is slidably connected to the outer wall of the upper vertical support. The drive mechanism includes: a drive assembly, which is fixedly installed on the outer wall of the upper vertical support; and a sliding assembly, which is fixedly installed on the outer wall of the middle plate. The sliding assembly includes several arc-shaped grooves fixedly connected to the side of the middle plate away from the base plate. Several support rods are slidably connected to the inner wall of the several arc-shaped grooves, and several support rods are slidably connected to the inner wall of the several arc-shaped grooves. The outer wall of the several support rods away from the arc-shaped groove is rotatably connected to the inner wall of the several support rods, and the several support rods are paired together.

[0005] Preferably, the support mechanism includes: a support component, which is rotatably disposed on top of the sliding component; and an adjustment component, which is fixedly disposed on the side of the intermediate plate away from the base plate.

[0006] Preferably, the limiting mechanism includes: a limiting component, which is fixedly disposed on the top outer wall of the supporting component; and a supporting guide component, which is fixedly disposed on the outer wall of the limiting component.

[0007] Preferably, the drive assembly includes two lifting drive devices fixedly connected to the end of the upper vertical support away from the middle plate, an upper support plate is slidably connected to the inner wall of the slide groove of the upper vertical support, and a deep hole drilling tool is fixedly connected to the output end of the spindle motor.

[0008] Preferably, the support assembly includes a support plate rotatably connected to the outer wall of one end of several support rods away from the arc groove, an auxiliary rod one rotatably connected to the end of the several support rods near the arc groove, and an auxiliary rod two rotatably connected to the end of the auxiliary rod one away from the arc groove.

[0009] Preferably, the adjustment assembly includes several sliding grooves fixedly connected to the side of the intermediate plate away from the base plate, a threaded telescopic rod rotatably connected to the outer wall of the auxiliary rod two, and several limiting plates fixedly connected to the side of the intermediate plate away from the base plate; the outer wall of the auxiliary rod two near one end is slidably connected to the inner wall of the sliding groove, and the outer wall of the threaded telescopic rod is threadedly connected to the inner wall of the limiting plate.

[0010] Preferably, the limiting component includes a limiting ring fixedly connected to the outer wall of the auxiliary rod one, and a top ring rotatably connected to the outer wall of the protruding cylinder of the auxiliary rod two; the inner wall of the through hole of the limiting ring is rotatably connected to the outer wall of the protruding cylinder of the auxiliary rod two.

[0011] Preferably, the support and guide assembly includes a limiting spring fixedly connected to the top ring on the side away from the limiting ring, a nut threadedly connected to the outer wall of the auxiliary rod protruding from the cylinder, and several bullseye casters fixedly connected to the outer walls of several support plates.

[0012] The present invention has the following beneficial effects: (1) When the material is deep-hole drilled, the feed length of the deep-hole drill tool is large, which makes the deep-hole drill tool prone to bending deformation during subsequent processing. At this time, most of the deep-hole drill tool has entered the material. This bending will cause the material to chip and crack during processing, affecting the quality of the product. At this time, it is necessary to add support guide at a certain position of the tool to reduce the occurrence of this phenomenon. Most existing equipment directly supports the tool through a rigid structure. After long-term operation, this structure will cause certain wear on the deep-hole drill tool, and will also affect the concentricity and processing accuracy of the deep-hole drill tool. At this time, a support mechanism is set on the middle plate, and support plates are set around the deep-hole drill tool. When the deep-hole drill tool undergoes bending deformation, it will press on one side of the support plate, causing the support plate to move away from the deep-hole drill tool. The movement of the support plate will cause the connection between support rod one and support rod two to be affected. As the movement continues, the connection points between support rod 2 and the arc groove, and between support rod 1 and the arc groove, move further apart. Due to the constraint of the arc groove, the connection points at both locations move further apart along the inner wall of the arc groove. When the connection points at both locations move further apart, the connection points between support rod 1 and auxiliary rod 1, and between support rod 2 and auxiliary rod 2, also move further apart. Support rod 1, support rod 2, auxiliary rod 1, and auxiliary rod 2 rotate and connect end to end. Through this operating mechanism, the pressure on the support plate is ultimately transmitted to the other side, forcing the support plate on the other side to approach the deep hole drilling tool. Since this operating mechanism lags behind the movement of the deep hole drilling tool, when the deflection position of the deep hole drilling tool reaches the support plate on the other side, it will exert pressure on the support plate. At this time, the pressure applied by the deep hole drilling tool will be balanced to a certain extent by the pressure transmitted here, thereby reducing part of the impact of the deflection of the deep hole drilling tool on the processing.(2) In actual processing, during deep hole drilling of the material, a certain axial movement will occur. This movement will cause the cutting edge of the deep hole drilling tool to become larger when processing the material. At the same time, this movement will also cause the cutting edge of the material to have a stepped cross-section, which will ultimately affect the product quality. At this time, after the deep hole drilling tool moves, it will apply a large pressure to the support plate, causing it to move away from the deep hole drilling tool. The movement of the support plate will cause the connection between support rod one and the arc groove, and the connection between support rod two and the arc groove to move away from each other. Furthermore, the connection between support rod one and auxiliary rod one will also move together as the two move away from each other. At the same time, because support rod one and support rod two are moving away from each other... The relatively fast movement speed of the auxiliary rod causes the limiting ring to rotate rapidly around the connection between the auxiliary rod and the second auxiliary rod. Simultaneously, the connection between the auxiliary rod and the second auxiliary rod moves along the sliding groove towards the deep hole drilling tool. At this time, the rotation of the limiting ring causes the top ring to move away from the limiting ring along its arc surface, meaning the top ring will approach the nut. However, due to the action of the limiting spring, the top ring approaching the nut causes the limiting spring to be compressed. Before operation, the position of the nut is adjusted to compress the limiting spring to a certain extent, thus limiting the movement distance of the top ring. This limitation also reduces the rotation angle of the limiting ring, thereby reducing the rotation angle of the auxiliary rod. Before this axial movement is transmitted to other positions, this mechanism reduces its impact on other positions. At the same time, since it only increases the difficulty of rotating the limiting ring, the limiting ring can still rotate, thus playing a part of the buffering role, reducing the hard contact between the deep hole drilling tool and the support plate, and reducing the wear of the deep hole drilling tool; (3) In this invention, when processing materials, it is necessary to select the specifications of the deep hole drilling tool according to the processing requirements. This requires changing the deep hole drilling tool according to the requirements, and the support structure needs to be adjusted according to the specifications of the deep hole drilling tool. At this time, according to the specifications of the tool, the threaded telescopic rod is turned, and the position of the auxiliary rod 2 and the auxiliary rod 1 in the sliding groove is adjusted by the position of the threaded telescopic rod. The change in position of the connection between auxiliary rod 1 and auxiliary rod 2 will cause the position of support rod 1 and support rod 2 on both sides to change. When the deep hole drilling tool is large, adjusting the threaded telescopic rod closer to the deep hole drilling tool will also bring the connection between auxiliary rod 1 and auxiliary rod 2 closer to the deep hole drilling tool. This will cause the connection between support rod 1 and auxiliary rod 1, and the connection between auxiliary rod 2 and support rod 2 to move away from each other. This will cause the connection between support rod 2 and support rod 1 to move away from the deep hole drilling tool. Ultimately, this will cause the surrounding support plates to move away from each other, thereby increasing the space formed by each support plate to meet the specifications of the deep hole drilling tool. Conversely, if the specifications of the deep hole drilling tool are small, adjusting the threaded telescopic rod away from the deep hole drilling tool will adapt to its specifications.(4) After the material processing is completed, the deep hole drilling tool will be driven away from the cut material by the lifting drive device. During this process, a certain amount of coolant and debris mixture will adhere to the surface of the deep hole drilling tool. At this time, during the rising process of the deep hole drilling tool, it will contact the support plate, causing the support plate to adhere to a part of the mixture. When processing new material again, the mixture adhering to the support plate will cause wear on the deep hole drilling tool, affecting the tool's service life. At this time, several bullseye casters are set between the support plate and the deep hole drilling tool, so that the deep hole drilling tool is supported by the bullseye casters when it is running. The contact area between the bullseye casters and the deep hole drilling tool is small, and among the multiple bullseye casters, the contact surface with the deep hole drilling tool is a ball, which can rotate in all directions, thereby adapting to the rotation and feed of the deep hole drilling tool during operation, better supporting the deep hole drilling tool, and reducing its wear. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a cross-sectional schematic diagram of the overall structure of the present invention; Figure 3 is a cross-sectional schematic diagram of the driving mechanism of the present invention; Figure 4 is a cross-sectional schematic diagram of the driving component of the present invention; Figure 5 is a schematic diagram of the sliding component of the present invention; Figure 6 is a schematic diagram of the support mechanism of the present invention; Figure 7 is an exploded schematic diagram of the limiting mechanism of the present invention; Figure 8 is an exploded schematic diagram of the support and guide component of the present invention; Figure 9 is an exploded schematic diagram of the limiting component of the present invention; Figure 10 is a schematic diagram of the connection state of the bullseye caster wheel of the present invention.

[0015] The components represented by each number in the attached diagram are listed below: 1. Drive mechanism; 2. Support mechanism; 3. Restriction mechanism; 11. Drive assembly; 12. Sliding assembly; 13. Base plate; 14. Intermediate plate; 15. Upper vertical support; 21. Support assembly; 22. Adjustment assembly; 31. Restriction assembly; 32. Support guide assembly; 111. Lower support plate; 112. Workpiece fixture; 113. Spindle motor; 114. Lifting drive device; 115. Upper support plate; 116. Deep hole drilling tool; 121. Arc groove; 122. Support rod one; 123. Support rod two; 211. Support plate; 212. Auxiliary rod one; 213. Auxiliary rod two; 221. Sliding groove; 222. Threaded telescopic rod; 223. Restriction plate; 311. Restriction ring; 312. Top ring; 321. Restriction spring; 322. Nut; 323. Bullseye caster. Detailed Implementation

[0016] 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, and 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.

[0017] Example 1, please refer to Figures 1-10. This invention is a high-precision adjustable positioning worktable suitable for deep hole drilling of brittle and hard materials. It includes a base plate 13, a middle plate 14 fixedly connected to the top outer wall of the base plate 13, and an upper vertical support 15 fixedly connected to the end of the middle plate 14 away from the base plate 13. It also includes: a drive mechanism 1, fixedly mounted on the top outer wall of the base plate 13, used to drive the cutting tool to drill through the material; a support mechanism 2, rotatably connected to the outer wall of the drive mechanism 1, used to support the cutting tool; and a limiting mechanism 3, fixedly mounted on the outer wall of the support mechanism 2, used to limit a portion of the structure within the support mechanism 2. The base plate 13 includes several support columns fixed thereon. A lower support plate 111 is fixedly connected to the top outer wall of the base plate 13. A workpiece clamp 112 is fixedly connected to the side of the upper vertical support 15 away from the base plate 13, and a spindle motor 113 is slidably connected to the outer wall of the upper vertical support 15. The drive mechanism 1 includes: a drive assembly 11, which is fixedly installed on the outer wall of the upper vertical support 15; and a sliding assembly 12, which is fixedly installed on the outer wall of the intermediate plate 14. The sliding assembly 12 includes several arc-shaped grooves 121 fixedly connected to the side of the intermediate plate 14 away from the base plate 13. Several support rods 122 are slidably connected to the inner wall of the grooves of the several arc-shaped grooves 121, and several support rods 23 are slidably connected to the inner wall of the grooves of the several arc-shaped grooves 121. The outer wall of the first support rod 122 away from the arc-shaped groove 121 is rotatably connected to the inner wall of the second support rod 123. The first support rod 122 and the second support rod 23 are paired together.

[0018] The support mechanism 2 includes: a support component 21, which is rotatably disposed on top of the sliding component 12; and an adjustment component 22, which is fixedly disposed on the side of the intermediate plate 14 away from the base plate 13.

[0019] The limiting mechanism 3 includes: a limiting component 31, which is fixedly disposed on the top outer wall of the supporting component 21; and a supporting guide component 32, which is fixedly disposed on the outer wall of the limiting component 31.

[0020] The drive assembly 11 includes two lifting drive devices 114 fixedly connected to the end of the upper vertical support 15 away from the middle plate 14. An upper support plate 115 is slidably connected to the inner wall of the groove of the upper vertical support 15. A deep hole drilling tool 116 is fixedly connected to the output end of the spindle motor 113. When deep hole drilling is performed on the material, the deep hole drilling tool 116 is prone to bending deformation during subsequent processing due to its large feed length. At this time, most of the deep hole drilling tool 116 has entered the material. This bending will cause the material to chip and crack during processing, affecting the quality of the product. At this time, it is necessary to add support and guidance at a certain position of the tool to reduce the occurrence of this phenomenon. However, most existing equipment directly supports the tool through a rigid structure. After long-term operation, this structure will cause certain wear on the deep hole drilling tool 116 and will also affect the concentricity and processing accuracy of the deep hole drilling tool 116.

[0021] Support assembly 21 includes a support plate 211 rotatably connected to the outer wall of one end of several support rods 122 away from the arc groove 121; auxiliary rods 212 are rotatably connected to the ends of the support rods 122 near the arc groove 121; and auxiliary rods 213 are rotatably connected to the ends of the auxiliary rods 212 away from the arc groove 121. A support mechanism 2 is provided on the intermediate plate 14, and support plates 211 are provided around the deep hole drilling tool 116. When the deep hole drilling tool 116... When flexural deformation occurs, it will exert pressure on one side of the support plate 211, causing the support plate 211 to move away from the deep hole drilling tool 116. The movement of the support plate 211 will cause the connection between the first support rod 122 and the second support rod 123 to move accordingly. This will cause the connection between the second support rod 123 and the arc groove 121, and the connection between the first support rod 122 and the arc groove 121 to move away from each other. Due to the constraint of the arc groove 121, the connection points at both locations will move along the arc groove 121. The inner walls are far apart, and when the connection points of the two places are far apart, the connection between support rod 122 and auxiliary rod 212, and the connection between support rod 223 and auxiliary rod 213 will also be far apart. Support rod 122, support rod 223, auxiliary rod 212, and auxiliary rod 213 are connected to each other end to end. Through this operating mechanism, the pressure on the support plate 211 will eventually be transmitted to the other side, forcing the support plate 211 on the other side to approach the deep hole drilling tool 116. Since this operating mechanism will lag behind the movement of the deep hole drilling tool 116, when the deflection position of the deep hole drilling tool 116 reaches the support plate 211 on the other side, it will exert pressure on the support plate 211. At this time, the pressure applied by the deep hole drilling tool 116 will be balanced to a certain extent by the pressure transmitted here, thereby reducing part of the impact of the deflection of the deep hole drilling tool 116 on the processing.

[0022] The adjustment assembly 22 includes several sliding grooves 221 fixedly connected to the side of the intermediate plate 14 away from the base plate 13; a threaded telescopic rod 222 is rotatably connected to the outer wall of the auxiliary rod 213; several limiting plates 223 are fixedly connected to the side of the intermediate plate 14 away from the base plate 13; the outer wall of the auxiliary rod 213 near the auxiliary rod 212 is slidably connected to the inner wall of the sliding groove 221; the outer wall of the threaded telescopic rod 222 is threadedly connected to the inner wall of the limiting plate 223; in actual processing, due to the axial movement that occurs when drilling deep holes in the material, the cutting edge of the deep hole drilling tool 116 will become larger when processing the material, and this movement will also cause the material to... The cut produces a stepped cross-section, ultimately affecting product quality. At this point, after the deep hole drilling tool 116 moves, it exerts significant pressure on the support plate 211, causing it to move away from the deep hole drilling tool 116. The movement of the support plate 211 causes the connection points of support rod one 122 and the arc groove 121, and support rod two 123 and the arc groove 121 to move away from each other. The limiting component 31 includes a limiting ring 311 fixedly connected to the outer wall of auxiliary rod one 212, and a top ring 312 rotatably connected to the protruding part of the auxiliary rod two 213 from the outer wall of the cylinder. Since the specifications of the deep hole drilling tool 116 need to be selected according to processing requirements when processing materials, it is necessary to replace the deep hole drilling tool 116 as needed. The support structure needs to be adjusted accordingly. The specifications of the deep hole drilling tool 116 are adjusted. At this time, according to the tool's specifications, the threaded telescopic rod 222 is turned. The position of the threaded telescopic rod 222 adjusts the position of the connection between auxiliary rod 213 and auxiliary rod 212 within the sliding groove 221. This change in the position of the connection between auxiliary rod 212 and auxiliary rod 213 will, in turn, cause changes in the positions of the support rods 122 and 223 on either side. When the deep hole drilling tool 116 is large, adjusting the threaded telescopic rod 222 closer to the deep hole drilling tool 116 will also bring the connection between auxiliary rod 122 and auxiliary rod 213 closer to the deep hole drilling tool 116, thereby causing changes in the positions of the connection between support rod 122 and auxiliary rod 212, and between auxiliary rod 213 and support rod 213. The connection points of 23 are far apart, which in turn causes the connection point between support rod 223 and support rod 122 to be far away from the deep hole drilling tool 116. This ultimately causes the surrounding support plates 211 to be far apart, thereby increasing the space formed in each support plate 211 to meet the specifications of the deep hole drilling tool 116. Conversely, if the specifications of the deep hole drilling tool 116 are small, adjusting the threaded telescopic rod 222 away from the deep hole drilling tool 116 can adapt to its specifications. The support guide assembly 32 includes a limiting spring 321 fixedly connected to the top ring 312 on the side away from the limiting ring 311. A nut 322 is threadedly connected to the outer wall of the auxiliary rod 213 protruding from the cylinder. Several bullseye casters 323 are fixedly connected to the outer walls of several support plates 211.After material processing is completed, the deep hole drilling tool 116, driven by the lifting drive device 114, moves away from the cut material. During this process, a mixture of coolant and debris adheres to the surface of the deep hole drilling tool 116. As the deep hole drilling tool 116 rises, it comes into contact with the support plate 211, causing some of the mixture to adhere to the support plate 211. When processing new material again, this mixture adhering to the support plate 211 will cause wear on the deep hole drilling tool 116, affecting its service life. At this time, the support plate 211 and the deep hole... Several bullseye casters 323 are arranged between the deep hole drilling tools 116. These casters support the deep hole drilling tools 116 during operation. The contact area between the bullseye casters 323 and the deep hole drilling tools 116 is small, and the contact surface between the casters 323 and the deep hole drilling tools 116 is a sphere, allowing them to rotate in all directions. This adapts to the rotation and feed of the deep hole drilling tools 116 during operation, providing better support and reducing wear.

[0023] A specific application of this embodiment is as follows: In use, the device is first transported to the desired location by a transport vehicle. Then, the material to be processed is placed on the lower support plate 111 and clamped and fixed using the workpiece clamp 112. After that, the required cutting tools are replaced, and the material processing begins. When drilling deep holes in the material, due to the large feed length of the deep hole drilling tool 116, the deep hole drilling tool 116 is prone to bending deformation during subsequent processing. At this time, most of the deep hole drilling tool 116 has already entered the material. This bending can cause the material to chip and crack during processing, affecting the quality of the product. At this point, it is necessary to add support and guidance at a certain position on the tool to reduce this phenomenon. However, most existing equipment directly supports the tool through a rigid structure. This structure will cause certain wear to the deep hole drilling tool 116 after long-term operation, and will also affect the concentricity and machining accuracy of the deep hole drilling tool 116. At this time, a support mechanism 2 is set on the intermediate plate 14, and support plates 211 are set around the deep hole drilling tool 116. When the deep hole drilling tool 116 undergoes bending deformation, it will put pressure on one side of the support plate 211, causing the support plate 211 to move away from the deep hole drilling tool 116. The movement of 211 will cause the connection between support rod 122 and support rod 123 to move accordingly, which in turn will cause the connection between support rod 123 and arc groove 121, and the connection between support rod 122 and arc groove 121 to move away from each other. Due to the constraint of arc groove 121, the connection points at the two locations will move away from each other along the inner wall of arc groove 121. When the connection points at the two locations move away from each other, the connection between support rod 122 and auxiliary rod 212, and the connection between support rod 123 and auxiliary rod 213 will also move away from each other. The tails are connected by rotation. Through this operating mechanism, the pressure on the support plate 211 will eventually be transmitted to the other side, forcing the support plate 211 on the other side to approach the deep hole drilling tool 116. Since this operating mechanism will lag behind the movement of the deep hole drilling tool 116, when the deflection position of the deep hole drilling tool 116 reaches the support plate 211 on the other side under the high-speed operation of the deep hole drilling tool 116, it will exert pressure on the support plate 211. At this time, the pressure applied by the deep hole drilling tool 116 will be balanced to a certain extent by the pressure transmitted here, thereby reducing the impact of the deflection of the deep hole drilling tool 116 on the processing.During actual machining, axial movement occurs when drilling deep holes in the material. This movement causes the cutting edge of the deep hole drilling tool 116 to become larger, and it also creates a stepped cross-section, ultimately affecting product quality. When the deep hole drilling tool 116 moves, it exerts significant pressure on the support plate 211, causing it to move away from the tool. The movement of the support plate 211 causes the support rod 122 to... The connection points of the shaped groove 121 and the support rod 123 and the arc-shaped groove 121 move away from each other. Furthermore, the connection points of the support rod 122 and the auxiliary rod 212 also move together as they move away from each other. At the same time, because the moving speed of the support rod 122 and the support rod 123 is relatively fast, the auxiliary rod 212 will quickly drive the limiting ring 311 to rotate around the connection point of the auxiliary rod 122 and the auxiliary rod 213. This will also cause the connection between the auxiliary rod 122 and the auxiliary rod 213 to... The top ring 312 moves along the sliding groove 221 near the deep hole drilling tool 116. At this time, the rotation of the limiting ring 311 causes the top ring 312 to move away from the limiting ring 311 along its arc surface. That is, the top ring 312 will approach the nut 322. However, due to the action of the limiting spring 321, the top ring 312 approaching the nut 322 will cause the limiting spring 321 to be compressed. Before operation, the position of the nut 322 is adjusted so that the limiting spring 321 is compressed to a certain extent, thus limiting the movement distance of the top ring 312. When the top ring 312 is restricted, the rotation angle of the restricting ring 311 will also decrease, which will reduce the rotation angle of the auxiliary rod 212. Thus, before the axial movement is transmitted to other positions, this mechanism reduces its impact on other positions. At the same time, since it only increases the difficulty of rotating the restricting ring 311, the restricting ring 311 can still rotate, which can play a part of the buffering role, reduce the hard contact between the deep hole drilling tool 116 and the support plate 211, and reduce the wear of the deep hole drilling tool 116.Because the specifications of the deep hole drilling tool 116 need to be selected according to the processing requirements when processing materials, it is necessary to change the deep hole drilling tool 116 according to the requirements. The support structure needs to be adjusted according to the specifications of the deep hole drilling tool 116. At this time, according to the specifications of the tool, the threaded telescopic rod 222 is turned. The position of the threaded telescopic rod 222 is adjusted to adjust the position of the connection between the auxiliary rod 213 and the auxiliary rod 122 in the sliding groove 221. The change in the position of the connection between the auxiliary rod 122 and the auxiliary rod 213 will also cause the positions of the support rod 122 and the support rod 223 on both sides to change. When deep hole drilling... When the cutting tool 116 is large, adjusting the threaded telescopic rod 222 closer to the deep hole drilling tool 116 will also bring the connection between auxiliary rod one 212 and auxiliary rod two 213 closer to the deep hole drilling tool 116. This will cause the connection between support rod one 122 and auxiliary rod one 212, and the connection between auxiliary rod two 213 and support rod two 123, to move away from each other. Consequently, the connection between support rod two 123 and support rod one 122 will move away from the deep hole drilling tool 116, ultimately causing the surrounding support plates 211 to move away from each other. This increases the space formed in each support plate 211, making it conform to the specifications of the deep hole drilling tool 116. Conversely, if the deep hole drilling tool... When the size of the 116 is small, adjusting the threaded telescopic rod 222 away from the deep hole drilling tool 116 will adapt to its size. After the material processing is completed, the deep hole drilling tool 116 will be driven by the lifting drive device 114 to move away from the cut material. During this process, a certain amount of coolant and debris mixture will adhere to the surface of the deep hole drilling tool 116. At this time, during the rising process of the deep hole drilling tool 116, it will come into contact with the support plate 211, causing some of the mixture to adhere to the support plate 211. When processing new material again, the mixture adhering to the support plate 211 will cause wear on the deep hole drilling tool 116, affecting the tool's performance. To extend the service life of the tool, several bullseye casters 323 are installed between the support plate 211 and the deep hole drilling tool 116. These casters support the deep hole drilling tool 116 during operation. The contact area between the bullseye casters 323 and the deep hole drilling tool 116 is small, and the contact surface between the casters 323 and the deep hole drilling tool 116 is spherical, allowing them to rotate in all directions. This adapts to the rotation and feed of the deep hole drilling tool 116 during operation, providing better support and reducing wear.

[0024] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A high-precision adjustable positioning worktable suitable for deep hole drilling of brittle and hard materials, comprising a base plate (13), wherein an intermediate plate (14) is fixedly connected to the top outer wall of the base plate (13), and an upper vertical support (15) is fixedly connected to one end of the intermediate plate (14) away from the base plate (13), characterized in that, Also includes: A driving mechanism (1) is fixedly installed on the top outer wall of the base plate (13) for driving the tool to drill into the material; a support mechanism (2) is rotatably connected to the outer wall of the driving mechanism (1) for supporting the tool; a limiting mechanism (3) is fixedly installed on the outer wall of the support mechanism (2) for limiting a part of the structure in the support mechanism (2); wherein, the base plate (13) includes several support columns fixed thereon; a lower support plate (111) is fixedly connected to the top outer wall of the base plate (13), and a workpiece clamp (112) is fixedly connected to the side of the lower support plate (111) away from the base plate (13); a spindle motor (113) is slidably connected to the outer wall of the upper vertical bracket (15); the driving mechanism ( 1) Includes: a drive assembly (11), which is fixedly installed on the outer wall of the upper vertical support (15); a sliding assembly (12), which is fixedly installed on the outer wall of the middle plate (14); the sliding assembly (12) includes a plurality of arc-shaped grooves (121) fixedly connected to the side of the middle plate (14) away from the base plate (13), a plurality of support rods (122) are slidably connected to the inner wall of the groove of the plurality of arc-shaped grooves (121), and a plurality of support rods (123) are slidably connected to the inner wall of the groove of the plurality of arc-shaped grooves (121); the outer wall of the plurality of support rods (122) away from the arc-shaped groove (121) is rotatably connected to the inner wall of the plurality of support rods (123), and the plurality of support rods (122) and the plurality of support rods (123) are paired together.

2. The high-precision adjustable positioning worktable for deep hole drilling of brittle and hard materials according to claim 1, characterized in that: The support mechanism (2) includes: a support component (21), which is rotatably disposed on the top of the sliding component (12); and an adjustment component (22), which is fixedly disposed on the side of the intermediate plate (14) away from the base plate (13).

3. A high-precision adjustable positioning worktable suitable for deep hole drilling of brittle and hard materials according to claim 2, characterized in that: The limiting mechanism (3) includes: a limiting component (31), which is fixedly disposed on the top outer wall of the support component (21); and a support guide component (32), which is fixedly disposed on the outer wall of the limiting component (31).

4. A high-precision adjustable positioning worktable suitable for deep hole drilling of brittle and hard materials according to claim 1, characterized in that: The drive assembly (11) includes two lifting drive devices (114) fixedly connected to the end of the upper vertical support (15) away from the middle plate (14). The upper support plate (115) is slidably connected to the inner wall of the groove of the upper vertical support (15). The output end of the spindle motor (113) is fixedly connected to a deep hole drilling tool (116).

5. A high-precision adjustable positioning worktable suitable for deep hole drilling of brittle and hard materials according to claim 3, characterized in that: The support assembly (21) includes a support plate (211) rotatably connected to the outer wall of one end of a plurality of support rods (122) away from the arc groove (121), and an auxiliary rod (212) rotatably connected to one end of the plurality of support rods (122) near the arc groove (121), and an auxiliary rod (213) rotatably connected to one end of the auxiliary rod (212) away from the arc groove (121).

6. A high-precision adjustable positioning worktable suitable for deep hole drilling of brittle and hard materials according to claim 5, characterized in that: The adjustment assembly (22) includes several sliding grooves (221) fixedly connected to the side of the intermediate plate (14) away from the base plate (13). A threaded telescopic rod (222) is rotatably connected to the outer wall of the auxiliary rod two (213). Several limiting plates (223) are fixedly connected to the side of the intermediate plate (14) away from the base plate (13). The outer wall of the auxiliary rod two (213) near the auxiliary rod one (212) is slidably connected to the inner wall of the sliding groove (221). The outer wall of the threaded telescopic rod (222) is threadedly connected to the inner wall of the limiting plate (223).

7. A high-precision adjustable positioning worktable suitable for deep hole drilling of brittle and hard materials according to claim 5, characterized in that: The limiting component (31) includes a limiting ring (311) fixedly connected to the outer wall of the auxiliary rod one (212), and a top ring (312) rotatably connected to the outer wall of the protruding cylinder of the auxiliary rod two (213); the inner wall of the through hole of the limiting ring (311) is rotatably connected to the outer wall of the protruding cylinder of the auxiliary rod two (213).

8. A high-precision adjustable positioning worktable suitable for deep hole drilling of brittle and hard materials according to claim 5, characterized in that: The support guide assembly (32) includes a limiting spring (321) fixedly connected to the top ring (312) on the side away from the limiting ring (311), a nut (322) is threadedly connected to the outer wall of the auxiliary rod (213) protruding from the cylinder, and several bullseye casters (323) are fixedly connected to the outer wall of several support plates (211).

Images