A high-precision adjustable positioning workbench suitable for deep-hole drilling of brittle-hard materials

Abstract

This invention relates to the field of deep hole drilling equipment technology, and discloses a high-precision adjustable positioning worktable suitable for deep hole drilling of hard and brittle materials. It includes a support plate rotatably connected to the outer wall of several support rods at the end away from the arc-shaped groove. An auxiliary rod is rotatably connected to the outer wall of each support rod, and an auxiliary rod is rotatably connected to the inner wall of the auxiliary rod. Because the support rods, auxiliary rods, and auxiliary rods are rotatably connected end-to-end, this operating mechanism ultimately transmits the pressure on the support plate 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 during the high-speed operation of the tool, it will exert pressure on the support plate. Thus, the pressure applied by the deep hole drilling tool will be partially balanced by the pressure transmitted here, thereby reducing the impact of the deflection of the deep hole drilling tool on the processing.

Description

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, and further including:

[0005] The drive mechanism is fixedly installed on the top outer wall of the foundation plate and is used to drive the cutting tool to drill into the material.

[0006] The support mechanism is rotatably connected to the outer wall of the drive mechanism and is used to support the cutting tool.

[0007] A limiting mechanism is fixedly installed on the outer wall of the support mechanism to restrict certain parts of the structure within the support mechanism.

[0008] The foundation slab includes several supporting columns fixed on it;

[0009] A lower support plate is fixedly connected to the top outer wall of the foundation plate, and a workpiece clamp is fixedly connected to the side of the lower support plate away from the foundation plate. A spindle motor is slidably connected to the outer wall of the upper vertical support.

[0010] The drive mechanism includes:

[0011] The drive assembly is fixedly installed on the outer wall of the upper vertical support.

[0012] A sliding component is fixedly installed on the outer wall of the middle plate.

[0013] The sliding assembly includes several arc-shaped grooves fixedly connected to the side of the intermediate plate away from the base plate, several support rods slidably connected to the inner wall of the several arc-shaped grooves, and several support rods slidably connected to the inner wall of the several arc-shaped grooves.

[0014] Several support rods are rotatably connected at the outer wall of the end away from the arc groove and at the inner wall of several support rods. Several support rods are paired up to form a group.

[0015] Preferably, the support mechanism includes:

[0016] A support component is rotatably mounted on top of the sliding component;

[0017] Adjust the component, which is fixedly set on the side of the middle plate away from the base plate.

[0018] Preferably, the limiting mechanism includes:

[0019] A limiting component is fixedly installed on the top outer wall of the supporting component;

[0020] A support guide component is fixedly installed on the outer wall of the limiting component.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] The outer wall of the auxiliary rod 2 near the end of the auxiliary rod 1 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.

[0025] Preferably, the limiting component includes a limiting ring fixedly connected to the outer wall of the first auxiliary rod, and a top ring rotatably connected to the protruding part of the second auxiliary rod from the outer wall of the cylinder;

[0026] 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 2.

[0027] 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.

[0028] The present invention has the following beneficial effects:

[0029] (1) In the present invention, when deep-hole drilling is performed on materials, the feed length of the deep-hole drilling tool is relatively large, which makes the deep-hole drilling tool prone to bending deformation during subsequent processing. At this time, most of the deep-hole drilling tool has already 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. 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, and will also affect the concentricity and processing accuracy of the deep-hole drilling tool. At this time, a support mechanism is set on the intermediate plate, and support plates are set around the deep-hole drilling tool. When the deep-hole drilling tool undergoes bending deformation, it will put pressure on one side of the support plate, causing the support plate to move away from the deep-hole drilling tool. The movement of the support plate will cause the connection between support rod one and support rod two to move accordingly. This causes the connection points between support rod 2 and the arc groove, and between support rod 1 and the arc groove, to move away from each other. Due to the constraint of the arc groove, the connection points at these two locations will move away from each other along the inner wall of the arc groove. When the connection points at these two locations move away from each other, the connection points between support rod 1 and auxiliary rod 1, and between support rod 2 and auxiliary rod 2, will also move away from each other. Support rod 1, support rod 2, auxiliary rod 1, and auxiliary rod 2 are connected end to end by rotation. Through this operating mechanism, the pressure on the support plate will eventually be transmitted to the other side, forcing the support plate on the other side to approach the deep hole drilling tool. Since this operating mechanism will lag 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 under the high-speed movement of the deep hole drilling tool, 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.

[0030] (2) In actual processing, when the material is deep-hole drilled, a certain axial movement will occur. This movement will cause the cutting edge of the deep-hole drill tool to become larger when processing the material. At the same time, this movement will also cause the material to have a stepped cross-section, which will ultimately affect the product quality. At this time, after the deep-hole drill tool moves, it will apply a large pressure to the support plate, causing it to move away from the deep-hole drill tool. The movement of the support plate will cause the connection between support rod 1 and the arc groove and the connection between support rod 2 and the arc groove to move away from each other. Furthermore, the connection between support rod 1 and auxiliary rod 1 will also move together as they move away from each other. At the same time, since the movement speed of support rod 1 and support rod 2 is relatively fast, the auxiliary rod 1 will quickly drive the limiting ring to rotate around the connection between auxiliary rod 1 and auxiliary rod 2. At the same time, the auxiliary rod will also cause the limiting ring to rotate. The connection between the first and second auxiliary rods 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 the arc surface of the limiting ring, that is, the top ring will approach the nut. However, due to the action of the limiting spring, the top ring approaching the nut will cause the limiting spring to be compressed. Before operation, the position of the nut is adjusted so that the limiting spring is compressed by a certain amount, thereby limiting the movement distance of the top ring. After the top ring is restricted, the rotation angle of the limiting ring will also decrease, thereby reducing the rotation angle of the first auxiliary rod. Thus, before the axial movement is transmitted to other positions, this mechanism weakens its impact on other positions. At the same time, since it only increases the difficulty of the limiting ring's rotation, 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.

[0031] (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. The position of the connection between 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 the position of the connection between the auxiliary rod 1 and the auxiliary rod 2 will also cause the positions of the support rod 1 and the 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 one and auxiliary rod two closer to the deep hole drilling tool. This will cause the connection between support rod one and auxiliary rod one, and the connection between auxiliary rod two and support rod two, to move away from each other. Consequently, the connection between support rod two and support rod one will move away from the deep hole drilling tool, ultimately causing the surrounding support plates to move away from each other. This will increase the space formed by the support plates, making it conform to 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.

[0032] (4) After the material processing is completed, the deep hole drilling tool will move away from the cut material under the drive of 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 process of the deep hole drilling tool rising, 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 and affect 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

[0033] 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.

[0034] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0035] Figure 2 This is a cross-sectional view of the overall structure of the present invention;

[0036] Figure 3 This is a cross-sectional schematic diagram of the drive mechanism of the present invention;

[0037] Figure 4 This is a cross-sectional schematic diagram of the driving component of the present invention;

[0038] Figure 5 This is a schematic diagram of the sliding component of the present invention;

[0039] Figure 6 This is a schematic diagram of the support mechanism of the present invention;

[0040] Figure 7 This is a schematic diagram of the explosion-limiting mechanism of the present invention;

[0041] Figure 8 This is an exploded view of the support and guidance component of the present invention;

[0042] Figure 9 This is a schematic diagram of the explosion-limiting component of the present invention;

[0043] Figure 10 This is a schematic diagram of the connection state of the bullseye caster wheel of the present invention.

[0044] The attached diagram lists the components represented by each number as follows:

[0045] In the diagram: 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

[0046] 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.

[0047] Example 1, please refer to Figure 1 - Figure 10 This invention relates to a high-precision adjustable positioning workbench suitable for deep hole drilling of brittle and hard materials, comprising a base plate 13, an intermediate 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 intermediate plate 14 away from the base plate 13, and further comprising:

[0048] Drive mechanism 1 is fixedly installed on the top outer wall of the base plate 13 and is used to drive the cutting tool to drill into the material.

[0049] Support mechanism 2 is rotatably connected to the outer wall of drive mechanism 1 and is used to support the cutting tool;

[0050] The limiting mechanism 3 is fixedly installed on the outer wall of the support mechanism 2 and is used to limit a part of the structure in the support mechanism 2.

[0051] The foundation plate 13 includes several support columns fixed thereon;

[0052] 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 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 support 15.

[0053] Drive mechanism 1 includes:

[0054] Drive assembly 11 is fixedly installed on the outer wall of the upper vertical support 15;

[0055] Sliding component 12 is fixedly disposed on the outer wall of intermediate plate 14;

[0056] 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 several arc-shaped grooves 121. Several support rods 23 are slidably connected to the inner wall of the several arc-shaped grooves 121.

[0057] Several support rods 122 are rotatably connected at the outer wall of the end away from the arc groove 121 to the inner wall of several support rods 123, and the support rods 122 and the support rods 123 are paired together.

[0058] Supporting mechanism 2 includes:

[0059] Support component 21 is rotatably mounted on top of sliding component 12;

[0060] Adjustment component 22 is fixedly installed on the side of the intermediate plate 14 away from the base plate 13.

[0061] Restricted agency 3 includes:

[0062] The limiting component 31 is fixedly installed on the top outer wall of the supporting component 21;

[0063] The support guide component 32 is fixedly installed on the outer wall of the limiting component 31.

[0064] The drive assembly 11 includes two lifting drive devices 114 fixedly connected to one 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 slide groove of the upper vertical support 15, and a deep hole drilling tool 116 is fixedly connected to the output end of the spindle motor 113.

[0065] When performing deep hole drilling on materials, the large feed length of the deep hole drilling tool 116 makes it prone to bending deformation during subsequent processing. At this point, most of the deep hole drilling tool 116 has already entered the material. This bending can cause chipping and cracking of the material during processing, affecting product quality. Therefore, it is necessary to add support and guidance at a certain position of the tool to reduce this phenomenon. However, most existing equipment directly supports the tool with 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 machining accuracy of the deep hole drilling tool 116.

[0066] 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, 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.

[0067] 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 undergoes bending deformation, 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, which 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 the two locations will move away from each other along the inner wall of the arc groove 121. When the connection points at the two locations move away from each other, the connection between the first support rod 122 and the auxiliary rod 212, and the connection between the second support rod 123 and the auxiliary rod 212 will move away from each other. The connection points of the two 213 will also move away from each other, while the support rod 122, support rod 223, auxiliary rod 122, and auxiliary rod 213 are connected to each other 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 part of the impact of the deflection of the deep hole drilling tool 116 on the processing.

[0068] The adjustment component 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 rotatably connected to the outer wall of the auxiliary rod 213, and several limiting plates 223 fixedly connected to the side of the intermediate plate 14 away from the base plate 13.

[0069] The outer wall of the auxiliary rod 213 near the end of the auxiliary rod 212 is slidably connected to the inner wall of the sliding groove 221, and the outer wall of the threaded telescopic rod 222 is threadedly connected to the inner wall of the limiting plate 223.

[0070] During actual processing, 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 causes the material to have a stepped cross-section, ultimately affecting product quality. When the deep hole drilling tool 116 moves, it will exert greater 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 will cause the connection between the support rod 122 and the arc groove 121, and the connection between the support rod 223 and the arc groove 121 to move away from each other.

[0071] The limiting component 31 includes a limiting ring 311 fixedly connected to the outer wall of the auxiliary rod 1 212, and a top ring 312 rotatably connected to the protruding part of the outer wall of the auxiliary rod 213.

[0072] 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 position of the support rod 122 and the support rod 223 on both sides to change. When the deep hole drilling tool 116 is large, the threaded telescopic rod 222 is adjusted to... The connection between the auxiliary rod 1 212 and the auxiliary rod 213 of the near-deep hole drilling tool 116 will also be close to the deep hole drilling tool 116, which will cause the connection between the support rod 1 122 and the auxiliary rod 1 212, and the connection between the auxiliary rod 213 and the support rod 2 123 to move away from each other. This will cause the connection between the support rod 2 123 and the support rod 1 122 to move away from the deep hole drilling tool 116, and ultimately cause the surrounding support plates 211 to move away from each other, 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.

[0073] 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 threadedly connected to the outer wall of the auxiliary rod 213 protruding from the cylinder, and several bullseye casters 323 fixedly connected to the outer wall of several support plates 211.

[0074] 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 provided between the deep hole drilling tools 116, so that the deep hole drilling tools 116 are supported by the bullseye casters 323 when they are running. The contact area between the bullseye casters 323 and the deep hole drilling tools 116 is small, and the contact surface between the bullseye casters 323 and the deep hole drilling tools 116 is a ball, which can rotate in all directions. This can adapt to the rotation and feed of the deep hole drilling tools 116 during operation, better support the deep hole drilling tools 116, and reduce their wear.

[0075] One specific application of this embodiment is as follows: When in use, the device is first transported to the required suitable position by a transport vehicle, then the material to be processed is placed on the lower support plate 111, and the workpiece clamp 112 is used to clamp and fix it. After that, the required cutting tool is replaced and the material processing begins.

[0076] When performing deep hole drilling on materials, the large feed length of the deep hole drilling tool 116 makes it prone to bending deformation during subsequent processing. At this point, most of the tool 116 has already penetrated into the material. This bending can cause chipping and cracking during processing, affecting product quality. Therefore, it is necessary to add support and guidance at certain locations on the tool to reduce this phenomenon. However, most existing equipment directly supports the tool with a rigid structure. This structure, after prolonged operation, can damage the deep hole drilling tool. Wear occurs on the deep hole drilling tool 116, which also affects its concentricity and machining accuracy. To address this, a support mechanism 2 is installed on the intermediate plate 14, and support plates 211 are installed around the deep hole drilling tool 116. When the deep hole drilling tool 116 undergoes bending deformation, it exerts pressure on one side of the support plate 211, causing it to move away from the tool. This movement of the support plate 211 causes the connection between support rod 122 and support rod 123 to move, further affecting the connection between support rod 123 and the arc groove 121. The connection points of the support rod 122 and the arc groove 121 are moved away from each other. Due to the constraint of the arc groove 121, the connection points at the two locations will be moved away from each other along the inner wall of the arc groove 121. When the connection points at the two locations are moved away from each other, the connection points of the support rod 122 and the auxiliary rod 122, and the connection points of the support rod 223 and the auxiliary rod 213 will also be moved away from each other. The support rod 122, the support rod 223, the auxiliary rod 122, and the auxiliary rod 213 are connected end to end by rotation. Through this operating mechanism, ultimately, on the support plate 211 The pressure is 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 lags 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 part of the impact of the deflection of the deep hole drilling tool 116 on the processing.

[0077] 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.

[0078] 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 position of the support rod 122 and the support rod 223 on both sides to change. When the deep hole drilling tool 116 is large, the threaded telescopic rod 222 is adjusted to... The connection between the auxiliary rod 1 212 and the auxiliary rod 213 of the near-deep hole drilling tool 116 will also be close to the deep hole drilling tool 116, which will cause the connection between the support rod 1 122 and the auxiliary rod 1 212, and the connection between the auxiliary rod 213 and the support rod 2 123 to move away from each other. This will cause the connection between the support rod 2 123 and the support rod 1 122 to move away from the deep hole drilling tool 116, and ultimately cause the surrounding support plates 211 to move away from each other, 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.

[0079] 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 provided between the deep hole drilling tools 116, so that the deep hole drilling tools 116 are supported by the bullseye casters 323 when they are running. The contact area between the bullseye casters 323 and the deep hole drilling tools 116 is small, and the contact surface between the bullseye casters 323 and the deep hole drilling tools 116 is a ball, which can rotate in all directions. This can adapt to the rotation and feed of the deep hole drilling tools 116 during operation, better support the deep hole drilling tools 116, and reduce their wear.

[0080] 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 the end of the intermediate plate (14) away from the base plate, characterized in that, Also includes: The driving mechanism (1) is fixedly installed on the top outer wall of the base plate (13) and is used to drive the cutting tool to drill the material. Support mechanism (2), which is rotatably connected to the outer wall of the drive mechanism (1) and is used to support the tool; A limiting mechanism (3) is fixedly installed on the outer wall of the support mechanism (2) to limit a portion of the structure in the support mechanism (2); Among them, the foundation plate (13) includes several supporting 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. 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) is fixedly installed on the outer wall of the upper vertical support (15); A sliding component (12) is fixedly disposed 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. Several support rods (122) are slidably connected to the inner wall of the several arc-shaped grooves (121), and several support rods (123) are slidably connected to the inner wall of the several arc-shaped grooves (121). The outer wall of one of the support rods (122) away from the arc groove (121) is rotatably connected to the inner wall of one of the support rods (123), and the one of the support rods (122) and the one of the support rods (123) are paired up. The support mechanism (2) includes: A support assembly (21) is rotatably disposed on top of the sliding assembly (12); Adjustment component (22), which is fixedly disposed on the side of the intermediate plate (14) away from the base plate; The limiting mechanism (3) includes: A limiting component (31) is fixedly disposed on the top outer wall of the support component (21); A support guide assembly (32) is fixedly disposed on the outer wall of the limiting assembly (31); 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). The adjustment component (22) includes several sliding grooves (221) fixedly connected to the side of the intermediate plate (14) away from the base plate (13), and 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 2 (213) near the end of the auxiliary rod 1 (212) is slidably connected to the inner wall of the sliding groove (221), and the outer wall of the threaded telescopic rod (222) is threadedly connected to the inner wall of the limiting plate (223). 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) is rotatably connected to the outer wall 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 (213).

2. The high-precision adjustable positioning worktable 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).

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 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).

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