Machine tool guide rail drilling and chamfering integrated equipment and chamfering method

Abstract

The invention relates to the related technical field of machining, discloses drilling and chamfering integrated equipment for a machine tool guide rail and a chamfering method, and aims to solve the problem that the two ends of a through hole are not easy to chamfer at the same time after drilling. The chamfering assembly is mainly composed of a vertically-arranged detection rod and a chamfering frame which is installed on the side portion of the detection rod and can move in the radial direction of the detection rod, when the guide rail piece is machined, the cantilever assembly is used for enabling the drilling / chamfering assembly to synchronously move downwards, drilling work is achieved, and after a through hole is drilled, the cantilever assembly moves upwards, and the chamfering assembly moves downwards. A detection rod on the chamfering assembly is inserted into the through hole and moves upwards along the interior of the through hole, after a chamfering frame moves to the bottom end of the through hole, a chamfering motor is used for driving the detection rod to rotate, and a grinding block on the chamfering frame is used for chamfering the on-off bottom end; and after the chamfering frame moves to the upper end of the through hole, the chamfering frame stretches out again and completes chamfering machining of the upper end of the through hole, and finally the effect that the upper end and the lower end of the through hole are sequentially chamfered is achieved.

Description

Technical Field

[0001] This invention relates to the field of machining-related technologies, and in particular to an integrated machine tool guideway drilling and chamfering device and chamfering method. Background Technology

[0002] In the machining of machine tool guideways, the purpose of drilling is to machine connecting holes on the bed or column and other basic components for mounting the guideway pairs. This provides a precise positioning reference for subsequent bolt connections, ensuring that the guideways can be firmly and accurately installed on the basic components according to design requirements. The purpose of chamfering is to machine a tapered surface at the hole opening. On the one hand, it removes the burrs generated by drilling, preventing burrs from affecting the flatness of the mounting surface. On the other hand, it provides a good positioning tapered surface and bearing plane for bolt heads, washers, or nuts, dispersing the contact stress when the bolts are pre-tightened, and preventing the hole opening from chipping or plastic deformation under high pressure.

[0003] In the traditional machining process of drilling and chamfering machine tool guideways, these two steps are generally performed separately and sequentially. That is, drilling of all holes is completed first, and then chamfering is performed on each hole. This machining method has obvious drawbacks. Because it requires two clamping and positioning operations, the actual machining time is greatly increased, resulting in extremely low machining efficiency.

[0004] To address this issue, while some dual-station machines in the industry can simultaneously operate on drilling and chamfering areas, the results are still unsatisfactory. A search revealed a patent with publication number CN120619849A that proposes an integrated drilling and chamfering device for machine tool guideways. This device includes: simultaneously operating a drilling mechanism for drilling the guideway and a chamfering mechanism for chamfering the drilled holes, effectively improving the processing efficiency of the machine tool guideway; and adjusting the distance between the chamfering seat and the drilling seat using an adjustable distance component to adapt to the hole spacing of the machine tool guideway to be processed.

[0005] However, in practical applications, most machine tool guideways have through holes, designed for secure fixing to the machine bed using bolts. These through holes create two ends. Current integrated machining equipment can only chamfer the upper end, leaving the lower end with burrs due to ineffective machining. These untreated burrs can cause numerous problems during subsequent installation and use, such as hindering bolt installation and reducing the fit of the mounting surfaces, thus negatively impacting the overall installation effect and performance of the machine tool guideway. Summary of the Invention

[0006] This invention proposes an integrated equipment and method for drilling and chamfering machine tool guideways, which has the advantages of sequential chamfering at both ends and coaxial detection at both ends of the through hole, thereby solving the problem mentioned in the background art that it is not easy to chamfer both ends of the through hole at the same time after drilling.

[0007] To achieve the above objectives, this application adopts the following technical solution: an integrated drilling and chamfering device for machine tool guideways, comprising: a machine base, a guideway component with a through hole to be machined fixedly placed on the top, a cantilever assembly mounted on the side via a guide frame, and a control unit fixedly mounted on the side; the cantilever assembly includes an upper cantilever and a lower cantilever, which move synchronously; a stroke motor is mounted on the bottom inner side of the machine base, and a stroke lead screw on the output end of the stroke motor is threadedly connected to the lower cantilever; a drilling assembly driven by a drilling motor is mounted on the bottom of the upper cantilever; and an intermediate support plate is mounted on the surface of the lower cantilever via a shaft limiter, the surface of the intermediate support plate... A rotating core is installed in the middle, and a chamfering motor is installed at the bottom of the lower cantilever. The spindle on the output shaft of the chamfering motor is movably connected to the rotating core. A detection rod is installed on the top of the rotating core. A guide slide is installed on the inner side of the top of the detection rod using bolts, and a spring is set between the guide slide and the detection rod. A chamfering frame with grinding blocks is installed on the side of the guide slide. When the cantilever assembly moves downward, the drilling assembly performs drilling work on the guide rail. When the cantilever assembly moves upward, the detection rod passes through the through hole. When the chamfering frame passes the upper and lower ends of the through hole, the chamfering motor drives the chamfering frame to rotate, realizing the chamfering processing of the upper and lower ends of the through hole.

[0008] Furthermore, the rotating core, intermediate support plate, and drilling assembly are arranged coaxially.

[0009] Furthermore, the side shape of the chamfered frame is an isosceles trapezoid.

[0010] Furthermore, a limiting plate is fastened above the lower cantilever and at the top of the shaft, a protective push spring is provided between the intermediate support plate and the lower cantilever, and a protective switch is fixedly installed on the surface of the limiting plate and attached to the top of the intermediate support plate.

[0011] Furthermore, the diameter of the detection rod is the same as the diameter of the through hole.

[0012] Furthermore, an air intake chamber is provided on the top inner side of the intermediate support plate, and an air intake pipe connected to an air source is fixedly connected to the side of the intermediate support plate. An air supply channel connected to the air intake chamber is provided on the inner side of the detection rod, and a top cover connected to the air supply channel is installed on the top of the detection rod. An air jet hole is provided on the top cover.

[0013] Furthermore, an alarm air passage communicating with the air intake chamber is provided on the side of the intermediate support plate, and a whistle is installed in the alarm air passage. One end of the alarm air passage is located at the bottom of the inner wall of the limiting top plate.

[0014] Furthermore, the chamfering frame is symmetrically fixedly installed with limiting top rods located on one side of the upper and lower waist of the chamfering frame, and a reset switch located above the guide slide and a hovering switch located on one side of the reset switch are fixedly installed on the top of the inner side of the detection rod.

[0015] Furthermore, the limiting rod consists of a mounting base and a ball head. The ball head is movably mounted in the mounting base, which is threaded to the outer side of the guide slide. The center of the ball head is located on the inner side of the detection rod, and the outer side of the ball head extends from the side of the detection rod.

[0016] A chamfering method for an integrated machine tool guideway drilling and chamfering device includes the following steps:

[0017] S1. The top positioning and clamping assembly of the machine base positions and secures the guide rail components.

[0018] S2. The control unit regulates the rotation of the drilling motor, which drives the drilling assembly to rotate. The control unit causes the stroke motor to rotate, which in turn causes the lower cantilever to move downward through the stroke screw. The lower cantilever causes the upper cantilever to move downward synchronously, driving the drilling assembly to approach the guide rail for drilling until the through hole is formed.

[0019] S3. After the through hole is formed, the control unit controls the stroke motor to rotate in the opposite direction, and the upper cantilever drives the drilling assembly to move upward and disengage from the guide rail. The stroke motor controls the chamfering motor to rotate synchronously, and drives the rotating core and the detection rod to rotate through the spindle. The detection rod drives the chamfering frame and the grinding block to rotate through the guide slide. The stroke motor continues to rotate in the opposite direction, the lower cantilever continues to move upward, the detection rod is inserted into the through hole, and the grinding block on the waist of the chamfering frame contacts the bottom of the through hole and then rotates, realizing the chamfering of the bottom of the through hole.

[0020] S4. After the bottom chamfering is completed, the stroke motor continues to rotate in the opposite direction, and the lower cantilever continues to move upward. The outer waist of the chamfering frame is blocked by the bottom of the through hole, forming a wedge-shaped structure. This pushes the guide slide along the bolt to move inward to the inside of the detection rod. The chamfering frame retracts into the inside of the detection rod and compresses the spring. The detection rod drives the chamfering frame through the through hole to the top. The spring pushes the guide slide to push the chamfering frame outward to the top of the through hole. The detection rod drives the chamfering frame to rotate, completing the chamfering of the top of the through hole.

[0021] S5. After the upper end of the through hole is chamfered, the control unit adjusts the stroke motor to rotate in the forward direction, and the lower cantilever drives the detection rod to move down and pull out the through hole, so that the cantilever assembly returns to its initial height.

[0022] The beneficial effects of this invention are as follows:

[0023] In the intelligent manufacturing equipment industry, to address the problem of simultaneously chamfering both ends of the through hole after drilling in machine tool guideways, this invention provides an integrated drilling and chamfering device and method for machine tool guideways. A drilling assembly and a chamfering assembly are vertically and coaxially mounted on a cantilever assembly. The chamfering assembly consists of a vertically arranged detection rod and a chamfering frame installed on the side of the detection rod. The chamfering frame can move radially along the detection rod, achieving the purpose of extension / retraction.

[0024] During the machining of the guide rail components, firstly, the cantilever assembly drives the drilling assembly and chamfering assembly to move downwards synchronously. The drilling assembly then begins working, drilling the required holes in the guide rail components. After drilling the through holes, the cantilever assembly moves upwards. Subsequently, the detection rod on the chamfering assembly inserts into the drilled through holes and continues to move upwards along the inside of the through holes. When the detection rod moves upwards until the chamfering frame reaches the bottom of the through hole, the chamfering motor starts, driving the detection rod to rotate. The grinding block mounted on the chamfering frame also rotates accordingly, performing chamfering machining on the bottom of the through hole.

[0025] As the cantilever assembly continues to move upward, the chamfering frame retracts into the inspection rod. When the chamfering frame reaches the upper end of the through hole, it extends again, and the grinding block is used to chamfer the upper end of the through hole, thereby achieving the purpose of chamfering the upper and lower ends of the through hole sequentially.

[0026] Furthermore, the diameter of the detection rod in this application is as consistent as possible with the diameter of the through hole to be machined. After the through hole is machined, the upward-moving detection rod is inserted into it. If the detection rod can pass through the through hole smoothly during insertion, it indicates that the machining quality of the through hole is good and there are no tilting or offset problems; conversely, if the detection rod encounters an obstacle during insertion and cannot pass through smoothly, it indicates that the through hole may be tilted or offset due to tool wear, equipment precision issues, or errors in actual operation. In this way, the coaxiality of both ends of the through hole is ultimately detected. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort:

[0028] Figure 1 This is a schematic diagram of the overall external three-dimensional structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the overall internal planar cross-sectional structure of the present invention;

[0030] Figure 3 For the present invention Figure 2Enlarged structural diagram of section E in the middle;

[0031] Figure 4 For the present invention Figure 2 Enlarged structural diagram of the area at point F in the middle;

[0032] Figure 5 This is a schematic diagram showing the installation positions and three-dimensional structure of each component on the cantilever assembly of the present invention;

[0033] Figure 6 This is a schematic diagram of the installation positions and internal three-dimensional structure of the components on the lower cantilever of the present invention.

[0034] In the diagram: 1. Base; 2. Control unit; 3. Stroke motor; 301. Stroke lead screw; 4. Cantilever assembly; 400. Upper cantilever; 401. Lower cantilever; 5. Drilling motor; 6. Drilling assembly; 7. Guide rail; 700. Through hole; 8. Chamfering motor; 801. Spindle shaft; 9. Intermediate support plate; 900. Air inlet chamber; 901. Air inlet pipe; 903. Alarm air passage; 904. Sentry body; 10. Protective push spring; 11. Rotating core; 12. Detection rod; 120. Air supply passage; 13. Limiting top plate; 131. Protective switch; 14. Top cover; 140. Jet nozzle; 15. Guide slide; 16. Chamfering bracket; 17. Limiting top rod; 18. Reset switch; 19. Hovering switch. Detailed Implementation

[0035] 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.

[0036] Example 1, please refer to Figure 1 and Figure 2 The base 1 is fixed in the required position using legs located at its four corners. A positioning and clamping assembly for positioning and securing the guide rail 7 is fixedly installed on the top of the base 1. To enable drilling and chamfering at the required locations on the guide rail 7, from... Figure 1 , Figure 2 and Figure 5 It can be seen that a vertically arranged dovetail-shaped guide frame is fixedly installed on the side of the base 1, and a cantilever assembly 4 is movably installed on the side wall of the guide frame. Figure 2It is clearly visible that a stroke motor 3 is fixedly mounted on the bottom inner side of the base 1 via a bracket, and a stroke screw 301, which is threadedly connected to the cantilever assembly 4, is coaxially and securely mounted on the output shaft of the stroke motor 3. The stroke motor 3 is regulated by a control unit 2 fixed on the top outer side of the base 1. In application, the equipment is powered by mains electricity, and the control unit 2 controls the stroke motor 3 to rotate in both directions. When the stroke motor 3 drives the stroke screw 301 to rotate in both directions, the stroke screw 301 causes the cantilever assembly 4 to move up and down along the guide frame in a directional / fixed-distance manner.

[0037] More specifically, from Figure 1 and Figure 2 It can be seen that the cantilever assembly 4 consists of an upper cantilever 400 and a lower cantilever 401. The two have identical structures and are connected by two threaded rods, enabling the upper cantilever 400 and lower cantilever 401 to move up and down synchronously. The lower cantilever 401 is threadedly connected to the travel screw 301. From... Figure 2 As can be seen, the upper cantilever 400 is located above the lower cantilever 401, and a drilling assembly 6 is movably mounted on the bottom of the upper cantilever 400. The drilling assembly 6 mainly includes a drill rod for drilling, a clamping component for mounting the drill rod, and other mounting and safety components. A drilling motor 5, which drives the drilling assembly 6, is fixedly mounted on the top of the upper cantilever 400. The drilling motor 5 is also controlled by the control unit 2, so that when the drilling motor 5 drives the drilling assembly 6 to rotate, the drilling assembly 6 completes the drilling work on the guide rail 7. Figure 1 As can be seen, after the drilling assembly 6 drills holes at the corresponding positions of the guide rail 7, the final drilled hole is a through hole 700.

[0038] Correspondingly, combining Figures 2-6It is evident that a central support plate 9 is movably mounted on the surface of the lower cantilever 401. Specifically, six equally angled shafts are fixedly mounted on the surface of the lower cantilever 401, and the central support plate 9 is movably mounted corresponding to these six shafts, thereby achieving limiting and guiding of the central support plate 9. A rotating core 11, which is limited by bearing mounting, is located in the center of the surface of the central support plate 9. The rotating core 11, the central support plate 9, and the drilling assembly 6 are all coaxially arranged. Furthermore, the rotating core 11 can rotate in the center of the central support plate 9 using the bearings. A chamfering motor 8, controlled by the control unit 2, is fixedly mounted at the bottom of the lower cantilever 401. A decorative shaft 801, movably mounted to the rotating core 11, is coaxially fastened to the output shaft of the chamfering motor 8. When the chamfering motor 8 drives the decorative shaft 801 to rotate, it synchronously drives the rotating core 11 to rotate synchronously. Furthermore, the rotating core 11 has a detection rod 12 bolted to its top. Inside the top of the detection rod 12 is a guide slide 15, guided by two long-legged bolts. A spring located outside the long-legged bolts is positioned between the guide slide 15 and the detection rod 12. Under normal conditions, guided by the long-legged bolts, the guide slide 15 can only reciprocate radially along the detection rod 12. Driven by the spring, the guide slide 15 always tends to move away from the detection rod 12 under normal conditions. Figure 3 It is clearly visible that the guide slide 15 has a chamfering bracket 16 bolted to its side. The chamfering bracket 16 is preferably an isosceles trapezoid in shape, and grinding blocks bolted to its two sides are respectively mounted on the two sides of the chamfering bracket 16. When the detection rod 12 drives the chamfering bracket 16 to rotate synchronously with the grinding blocks via the guide slide 15, the inclined grinding blocks are used to chamfer both ends of the through hole 700. Since the grinding blocks are detachably mounted with bolts, they can be directly replaced when they wear out. A pad can also be placed between the grinding blocks and the chamfering bracket 16 to change the actual installation angle of the chamfering bracket 16, thereby meeting different usage requirements. More importantly, a ball bearing is provided at the top of the outer side of the chamfering bracket 16, ensuring that after the detection rod 12 drives the chamfering bracket 16 into the through hole 700, the ball bearing at the top of the chamfering bracket 16 can abut against the inner wall of the through hole 700, thereby reducing the contact friction between the chamfering bracket 16 and the inner side of the through hole 700.

[0039] In practical application, the specific steps of this first embodiment are as follows:

[0040] Workpiece positioning and clamping: The positioning and clamping assembly on the top of the machine base 1 is used to position and fasten the guide rail 7.

[0041] Drilling process: Powered by mains electricity, the control unit 2 regulates the rotation of the drilling motor 5, which in turn drives the drilling assembly 6 to rotate synchronously. The control unit 2 then causes the stroke motor 3 to rotate in the forward direction (taking forward rotation downward and reverse rotation upward as an example). The stroke motor 3 causes the lower cantilever 401 to move downward through the stroke screw 301. At the same time, the lower cantilever 401 causes the upper cantilever 400 to move downward synchronously through the threaded rod. As the upper cantilever 400 drives the drilling assembly 6 to move downward, the drilling assembly 6 approaches the guide rail 7 and performs drilling until the through hole 700 is formed.

[0042] Chamfering process: After the through hole 700 is formed, the control unit 2 controls the stroke motor 3 to rotate in the reverse direction, and the upper cantilever 400 drives the drilling assembly 6 to move upward and disengage from the guide rail 7. Then, the stroke motor 3 controls the chamfering motor 8 to rotate synchronously. The chamfering motor 8 drives the rotating core 11 and the detection rod 12 to rotate synchronously via the spindle 801. The detection rod 12 drives the chamfering frame 16 and the grinding block on the chamfering frame 16 to rotate synchronously via the guide slide 15. As the stroke motor 3 continues to rotate in the reverse direction, the lower cantilever 401 continues to move upward, and the detection rod 12 moves upward until it is inserted into the through hole 700. Then, when the grinding block at the waist of the chamfering frame 16 contacts the bottom of the through hole 700, the rotation of the grinding block driven by the chamfering frame 16 completes the chamfering of the bottom of the through hole 700.

[0043] After the chamfering at the bottom of the through hole 700 is completed, the stroke motor 3 continues to rotate in the opposite direction, causing the lower cantilever 401 to continue moving upward. Since the waist of the chamfering bracket 16 is arranged at an angle, the angle between it and the side of the guide slide 15 is greater than 90°. Therefore, when the detection rod 12 drives the guide slide 15 to continue moving upward, the waist of the outer side of the chamfering bracket 16 is blocked by the bottom of the through hole 700, thus forming a wedge structure. As the detection rod 12 continues to move upward, the chamfering bracket 16 will push the guide slide 15 to move along the long leg bolt towards the inner side of the detection rod 12, so that the guide slide 15 drives the chamfering bracket 16 to retract into the detection rod 12. At this time, the spring between the guide slide 15 and the detection rod 12 is further compressed. When the detection rod 12 drives the chamfering bracket 16 through the through hole 700 and the chamfering bracket 16 is located at the top of the through hole 700, the guide slide 15, pushed by the spring, drives the chamfering bracket 16 outward again, causing the chamfering bracket 16 to abut against the top of the through hole 700. After the detection rod 12 drives the chamfering bracket 16 to rotate, the chamfering work on the top of the through hole 700 is completed. Thus, the chamfering work on the bottom and top of the through hole 700 can be completed sequentially using the chamfering bracket 16.

[0044] Equipment reset: After the chamfering of the upper end of the through hole 700 is completed, the control unit 2 regulates the stroke motor 3 to rotate in the forward direction, so that the lower cantilever 401 drives the detection rod 12 to move downward until the detection rod 12 is pulled out of the through hole 700, and finally the cantilever assembly 4 returns to the initial height.

[0045] Example 2 is a further improvement on Example 1. Due to wear of the drilling tool or machine tool inaccuracies during drilling, the through hole 700 may tilt, causing misalignment of the center lines at its upper and lower ends. This affects subsequent installation and use. Example 2 addresses this problem; please refer to [link to example]. Figure 2 , Figures 4-6 It can be seen that a limiting top plate 13 is fastened and installed above the lower cantilever 401 and at the top of the shaft, and the intermediate support plate 9 is located between the limiting top plate 13 and the lower cantilever 401. Unlike Embodiment 1, in Embodiment 2, the intermediate support plate 9 can reciprocate up and down along the shaft and in the area between the lower cantilever 401 and the limiting top plate 13. Furthermore, a protective push spring 10 is provided between the intermediate support plate 9 and the lower cantilever 401. The elastic strength of the protective push spring 10 is greater than the elastic strength between the guide slide 15 and the detection rod 12. Under the elastic force of the protective push spring 10, the intermediate support plate 9 is forced to move upward and abut against the bottom of the limiting top plate 13. To facilitate the detection of whether there is displacement between the limiting top plate 13 and the intermediate support plate 9, a protective switch 131 is fixedly installed on the surface of the limiting top plate 13 and attached to the top of the intermediate support plate 9. The protective switch 131 is, for example, a position sensor or a contact switch. When the intermediate support plate 9 and the limiting top plate 13 move away from each other, the intermediate support plate 9 releases the pressure on the protective switch 131, and the protective switch 131 can input a signal to the control unit 2, thereby knowing that a gap has appeared between the intermediate support plate 9 and the limiting top plate 13.

[0046] More importantly, in this second embodiment, the diameter of the detection rod 12 is close to (equal to or less than) the diameter of the through hole 700. Since the detection rod 12 is a vertically arranged metal rod, and it is vertically coaxial with the drilling assembly 6, when the drilling assembly 6 shapes the through hole 700 and begins chamfering, if the through hole 700 is well-machined, the center lines of the drilling assembly 6, the through hole 700, and the detection rod 12 are aligned. When the lower cantilever 401 pushes the intermediate support plate 9 and the detection rod 12 upwards, the detection rod 12 can be smoothly inserted into the through hole 700 without obstruction during its upward movement along the through hole 700. Similarly, if the through hole 700 is offset during machining, the central axis of the through hole 700 and the detection rod 12 will no longer be vertically aligned. Therefore, when the detection rod 12 moves upward, its movement will be obstructed, preventing the intermediate support plate 9 from continuing to move upward. As the lower cantilever 401 continues to move upward, it will drive the limiting top plate 13 to continue moving upward, resulting in relative movement between the limiting top plate 13 and the intermediate support plate 9. At the same time, the intermediate support plate 9 compresses the protective push spring 10. When the intermediate support plate 9 and the limiting top plate 13 move relative to each other, the protective switch 131 will send a signal to the control unit 2, which will then control the stroke motor 3 to stop working, preventing the lower cantilever 401 from excessively pushing the detection rod 12 and causing component damage. Finally, if a reset is required, the operator needs to manually control the control unit 2 to make its stroke motor 3 rotate in the forward direction. This causes the stroke motor 3 to drive the detection rod 12 downward and disengage it from the through hole 700. When the detection rod 12 returns to its initial position, the intermediate support plate 9, which is subjected to the elastic force of the protective push spring 10, moves upward again and reaches the bottom of the limit plate 13. The protection switch 131 is pressed again, and the equipment is finally automatically reset.

[0047] Based on this, since debris may appear inside the through hole 700 after molding, in order to ensure the cleanliness of the inside of the through hole 700 and to prevent the detection rod 12 from being obstructed during insertion due to the presence of drill debris, combined with... Figures 2-4 and Figure 6 It can be seen that an air inlet chamber 900 is provided on the top inner side of the intermediate support plate 9, and an air inlet pipe 901 connected to an air source is fixedly connected to the side of the intermediate support plate 9. The air source can be input into the air inlet chamber 900 through the air inlet pipe 901. Correspondingly, an air delivery channel 120 connected to the air inlet chamber 900 is provided on the inner side of the detection rod 12. Specifically combined with Figure 4It can be seen that the top of the rotating core 11 and the top of the intermediate support plate 9 are connected by a sliding seal using a sealing gasket, and a connecting hole is provided on the top of the rotating core 11 to directly connect the air inlet chamber 900 and the air delivery channel 120. The top of the detection rod 12 has a top cover 14 that is bolted on, and the diameter of the top cover 14 is equal to the diameter of the detection rod 12. The top cover 14 is frustum-shaped, and its inner cavity is connected to the air delivery channel 120. Multiple equidistant jet holes 140 are provided on the frustum-shaped inclined surface of the top cover 14. In this way, when the lower cantilever 401 drives the detection rod 12 to be inserted into the through hole 700, the external air source is input into the air inlet chamber 900 through the air inlet pipe 901, and then transported to the inner cavity of the top cover 14 through the air delivery channel 120. Finally, it is quickly ejected from the jet holes 140. When the ejected airflow acts on the through hole 700, it blows out the drill cuttings present in the through hole 700 directly, thereby ensuring the cleanliness of the inner wall of the through hole 700.

[0048] Moreover, combined Figure 4 and Figure 6 It can be seen that the side of the intermediate support plate 9 has an alarm air passage 903 that communicates with the air intake chamber 900, and a whistle 904 is installed in the alarm air passage 903. When airflow passes through the whistle 904, the whistle 904 can emit a sound to alert the operator that there is a problem with the equipment. More importantly, one end of the alarm air passage 903 is located at the bottom of the inner wall of the limiting top plate 13. Under normal conditions, when the intermediate support plate 9 is against the bottom of the limiting top plate 13, the inner side of the limiting top plate 13 blocks the end of the alarm air passage 903, and the whistle 904 will not emit a sound. As mentioned earlier, when the detection rod 12 is inserted into the through hole 700, if the through hole 700 is tilted, it will cause relative movement between the limiting top plate 13 and the intermediate support plate 9. When the intermediate support plate 9 moves downward relative to the limiting top plate 13, the protection switch 131 sends a signal to the control unit 2 to stop the equipment from working. The alarm air passage 903 moves downward and disengages from the limiting top plate 13. The airflow in the air inlet chamber 900 can be discharged to the outside through the alarm air passage 903. During this process, the whistle 904 will make a sound to warn the operator that the equipment has malfunctioned.

[0049] Example 3, as a supplement to Example 2, aims to effectively control the chamfering depth when the chamfering bracket 16 performs chamfering work on both ends of the through hole 700. Therefore, Example 3 provides a method for limiting and adjusting the chamfering depth. Specifically, in conjunction with… Figure 2 , Figure 3 and Figure 6 It can be seen that symmetrically fixed limiting rods 17 are located on one side of the upper and lower waist of the chamfering frame 16. Each limiting rod 17 consists of a mounting base and a ball head. The ball head is movably mounted in the mounting base, which is threadedly connected to the outer side of the guide slide 15. Preferably, the center of the ball head is located inside the detection rod 12, and the outer side of the ball head extends from the side of the detection rod 12. Figure 3 The state shown is as described. Furthermore, a reset switch 18 is fixedly installed on the top inner side of the detection rod 12, located above the guide slide 15. When the limit rod 17 is fully retracted into the detection rod 12, the guide slide 15 and the reset switch 18 disengage, and the contact-pressed reset switch 18 sends a control signal to the control unit 2. A hover switch 19 is installed on the top inner side of the detection rod 12, located next to the reset switch 18. By changing the horizontal installation position of the hover switch 19, the guide slide 15 can be retracted into the detection rod 12, requiring a corresponding stroke to trigger the hover switch 19.

[0050] The control process of reset switch 18 and hover switch 19 is as follows:

[0051] Initially, the mounting position of the hover switch 19 is adjusted to adjust the actual chamfering depth of the chamfering bracket 16 at both ends of the through hole 700. Figure 3 As shown, the hover switch 19 is installed to the right. The greater the travel of the chamfer bracket 16 when it triggers the hover switch 19, the deeper the chamfer at both ends of the through hole 700.

[0052] As described in Embodiments 1 and 2, after the drilling assembly 6 forms the through hole 700 on the guide rail 7, the control unit 2 controls the stroke motor 3 to rotate in the reverse direction. The stroke screw 301 causes the lower cantilever 401 to drive the intermediate support plate 9 and the detection rod 12 to move upward. In this Embodiment 3, initially, the chamfering motor 8 is not started. The guide slide 15 pushes the chamfering frame 16 outward under the action of the spring. The outer side of the limiting top rod 17 extends synchronously to the outside of the detection rod 12. Figure 3 The state shown.

[0053] When the cantilever 401 pushes the detection rod 12 upward and inserts it into the through hole 700, the top cover 14 and the detection rod 12 are inserted into the through hole 700 in sequence. Then, as the detection rod 12 continues to move upward, the upper limiting rod 17 contacts the bottom of the through hole 700 and is subjected to the arc surface of the ball head, causing the guide slide 15 to retract into the detection rod 12. When the ball head on the limiting rod 17 reaches the inner wall of the through hole 700, the limiting rod 17 will also completely retract into the detection rod 12. The right-moving guide slide 15 releases its pressure on the reset switch 18, and the reset switch 18 sends an action signal to the control unit 2.

[0054] Subsequently, as the detection rod 12 continues to move upward, the bottom end of the through hole 700 will abut against the grinding block on the upper waist surface of the chamfering frame 16. Furthermore, the upward movement of the detection rod 12 causes the guide slide 15 to retract further into the detection rod 12 until the guide slide 15 moves to the right and contacts the stop switch 19. The stop switch 19 inputs an action signal to the control unit 2. The control unit 2 then immediately stops the stroke motor 3 and starts the chamfering motor 8. When the chamfering motor 8 drives the rotating core 11 and the detection rod 12 to rotate via the spindle 801, the detection rod 12 drives the chamfering frame 16 to rotate via the guide slide 15. The chamfering frame 16 grinds the bottom end of the through hole 700 using the grinding block on the upper waist surface. During this stage, when the stop switch 19 is turned on, the control unit 2 will start the chamfering motor 8 for approximately 15 seconds (the specific time can be adjusted as needed), ensuring that the chamfering frame 16 completes the chamfering process on the bottom end of the through hole 700. Specifically, as the chamfering bracket 16 drives the grinding block to rotate, the grinding block grinds the bottom end of the through hole 700. As the chamfer at the bottom end of the through hole 700 is gradually formed, the obstruction to the chamfering bracket 16 is reduced. The guide slide 15, pushed by the spring, continuously pushes the chamfering bracket 16 outwards. The guide slide 15 and the hover switch 19 disengage until the limiting rod 17 above the guide slide 15 again abuts against the inner wall of the through hole 700. At this point, the chamfering of the bottom end of the through hole 700 is completed. Furthermore, since the guide slide 15 does not contact the reset switch 18 again at this time, the control unit 2 will not process the action signal sent by the hover switch 19 to the control unit 2 when the hover switch 19 is pressed again. The hover switch 19 can only be used again after the reset switch 18 is triggered again.

[0055] Afterwards, when the chamfering motor 8 stops working, the control unit 2 continues to make the stroke motor 3 rotate in the opposite direction, so that the lower cantilever 401 pushes the detection rod 12 to continue to move upward. As the detection rod 12 continues to move upward, the chamfering frame 16 will also retract into the detection rod 12. During this process, the guide slide 15 contacting the hover switch 19 will not cause the control unit 2 to act again.

[0056] Subsequently, when the detection rod 12 moves the chamfering bracket 16 to the top of the through hole 700, the guide slide 15, pushed by the spring, pushes the chamfering bracket 16 outward. After the limiting rod 17 below the guide slide 15 disengages from the inside of the through hole 700, the guide slide 15, pushed by the spring, activates the reset switch 18. After the reset switch 18 sends an action signal to the control unit 2, the control unit 2 stops the stroke motor 3 again and controls the stroke motor 3 to rotate forward. In this way, when the detection rod 12 performs chamfering work on through holes 700 of various depths, unnecessary upward strokes are reduced, thereby improving the chamfering efficiency.

[0057] Secondly, as the detection rod 12 moves the chamfering frame 16 downwards, the lower limiting rod 17 and the chamfering frame 16 move in the same manner as described above, thereby using the grinding block on the lower waist surface of the chamfering frame 16 to chamfer the top of the through hole 700. This completes the chamfering work on the upper and lower ends of the through hole 700.

[0058] Finally, once the chamfering is complete, the control unit 2 controls the stroke motor 3 to continue rotating in the forward direction until it returns to its initial state, thus completing the chamfering of the through hole 700.

[0059] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An integrated drilling and chamfering device for machine tool guideways, characterized in that, include: The machine base (1) has a guide rail component (7) with a through hole (700) to be processed fixedly placed on the top, a cantilever assembly (4) installed on the side via a guide frame, and a control unit (2) fixedly installed on the side. The cantilever assembly (4) includes an upper cantilever (400) and a lower cantilever (401), which move synchronously. A stroke motor (3) is installed on the bottom inner side of the base (1), and the stroke lead screw (301) on the output end of the stroke motor (3) is threadedly connected to the lower cantilever (401). A drilling assembly (6) driven by a drilling motor (5) is installed at the bottom of the upper cantilever (400). The lower cantilever (401) has an intermediate support plate (9) installed by a shaft limiter on its surface. A rotating core (11) is installed in the middle of the surface of the intermediate support plate (9). A chamfering motor (8) is installed at the bottom of the lower cantilever (401). The flower shaft (801) on the output shaft of the chamfering motor (8) is movably connected to the rotating core (11). A detection rod (12) is installed on the top of the rotating core (11). A guide slide (15) is installed on the inner side of the top of the detection rod (12) by means of bolts. A spring is provided between the guide slide (15) and the detection rod (12). A chamfering bracket (16) with grinding blocks is installed on the side of the guide slide (15). When the cantilever assembly (4) descends, the drilling assembly (6) performs drilling work on the guide rail component (7); When the cantilever assembly (4) moves upward, the detection rod (12) passes through the through hole (700). When the chamfering frame (16) passes through the upper and lower ends of the through hole (700), the chamfering motor (8) drives the chamfering frame (16) to rotate, thereby realizing the chamfering process of the upper and lower ends of the through hole (700).

2. The integrated drilling and chamfering equipment for machine tool guideways according to claim 1, characterized in that, The rotating core (11), the intermediate support plate (9), and the drilling assembly (6) are arranged coaxially.

3. The integrated drilling and chamfering equipment for machine tool guideways according to claim 1, characterized in that, The side of the chamfered frame (16) is an isosceles trapezoid.

4. The integrated drilling and chamfering equipment for machine tool guideways according to claim 1, characterized in that, A limiting top plate (13) is fastened above the lower cantilever (401) and located at the top of the shaft. A protective push spring (10) is provided between the intermediate support plate (9) and the lower cantilever (401). A protective switch (131) is fixedly installed on the surface of the limiting top plate (13) and attached to the top of the intermediate support plate (9).

5. The integrated drilling and chamfering equipment for machine tool guideways according to claim 4, characterized in that, The diameter of the detection rod (12) is the same as the diameter of the through hole (700).

6. The integrated drilling and chamfering equipment for machine tool guideways according to claim 4, characterized in that, An air inlet chamber (900) is provided on the top of the inner side of the intermediate support plate (9), and an air inlet pipe (901) connected to the air source is fixedly connected to the side of the intermediate support plate (9). An air supply channel (120) connected to the air inlet chamber (900) is provided on the inner side of the detection rod (12). A top cover (14) connected to the air supply channel (120) is installed on the top of the detection rod (12), and an air jet hole (140) is provided on the top cover (14).

7. The integrated drilling and chamfering equipment for machine tool guideways according to claim 6, characterized in that, The middle support plate (9) has an alarm air passage (903) on its side that communicates with the air intake chamber (900), and a whistle (904) is installed in the alarm air passage (903). One end of the alarm air passage (903) is located at the bottom of the inner wall of the limiting top plate (13).

8. The integrated drilling and chamfering equipment for machine tool guideways according to claim 7, characterized in that, The chamfering frame (16) is symmetrically fixed with a limiting top rod (17) located on one side of the upper and lower waist of the chamfering frame (16). The inner top of the detection rod (12) is fixed with a reset switch (18) located above the guide slide (15) and a hovering switch (19) located on one side of the reset switch (18).

9. The integrated drilling and chamfering equipment for machine tool guideways according to claim 8, characterized in that, The limiting rod (17) consists of a mounting base and a ball head. The ball head is movably mounted in the mounting base, which is threaded to the outer side of the guide slide (15). The center of the ball head is located on the inner side of the detection rod (12), and the outer side of the ball head extends from the side of the detection rod (12).

10. A chamfering method using an integrated drilling and chamfering equipment for machine tool guideways, comprising the integrated drilling and chamfering equipment for machine tool guideways as described in claim 2, characterized in that... Includes the following steps: S1. The top positioning and clamping assembly of the base (1) positions and fastens the guide rail (7); S2. Control unit (2) regulates the rotation of drilling motor (5) to drive drilling assembly (6) to rotate; control unit (2) causes stroke motor (3) to rotate, and through stroke screw (301) causes lower cantilever (401) to move downward, and lower cantilever (401) causes upper cantilever (400) to move downward synchronously, driving drilling assembly (6) to approach guide rail (7) to drill until through hole (700) is formed; S3. After the through hole (700) is formed, the control unit (2) controls the stroke motor (3) to rotate in the opposite direction, and the upper cantilever (400) drives the drilling assembly (6) to move upward and disengage from the guide rail (7); the stroke motor (3) regulates the chamfering motor (8) to rotate synchronously, and drives the rotating core (11) and the detection rod (12) to rotate through the flower shaft (801). The detection rod (12) drives the chamfering frame (16) and the grinding block to rotate through the guide slide (15); the stroke motor (3) continues to rotate in the opposite direction, the lower cantilever (401) continues to move upward, the detection rod (12) inserts into the through hole (700), and the grinding block on the waist of the chamfering frame (16) rotates after contacting the bottom of the through hole (700) to achieve the chamfering of the bottom of the through hole (700); S4. After the bottom chamfering is completed, the stroke motor (3) continues to rotate in the opposite direction, and the lower cantilever (401) continues to move upward. The outer waist of the chamfering frame (16) is blocked by the bottom end of the through hole (700) to form a wedge structure, which pushes the guide slide (15) to move along the bolt to the inside of the detection rod (12). The chamfering frame (16) retracts into the inside of the detection rod (12) and compresses the spring. The detection rod (12) drives the chamfering frame (16) through the through hole (700) to the top. The spring pushes the guide slide (15) to push the chamfering frame (16) outward to the top of the through hole (700). The detection rod (12) drives the chamfering frame (16) to rotate, completing the chamfering of the top of the through hole (700). S5. After the chamfering of the upper end of the through hole (700) is completed, the control unit (2) adjusts the stroke motor (3) to rotate in the forward direction, and the lower cantilever (401) drives the detection rod (12) to move down and pull out the through hole (700), so that the cantilever assembly (4) returns to its initial height.

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