A hole chamfering device for a guide sleeve

Abstract

The utility model discloses a hole chamfering device of guide sleeve belongs to guide sleeve processing equipment technical field, including numerical control machine tool, and the fixture part of numerical control machine tool is used for clamping guide sleeve, still includes material receiving mechanism, processing mechanism and collection mechanism, and processing mechanism includes tool, support seat and electric jar, is provided with logic control circuit in numerical control machine tool, collection mechanism includes intermediate box and concentration box, when support frame moves to the farthest distance, and intermediate box is located just below guide sleeve, when support frame moves to the nearest distance, and intermediate box completely separates from below guide sleeve, and the intercommunication through concentration pipe between intermediate box and concentration box, support seat drives tool movement, when intermediate box is located just below guide sleeve, and tool falls into intermediate box and enters concentration box in the waste that the tool produces to guide sleeve processing, completes to the collection of processing waste, avoids the accumulation of processing waste in the dead angle, when intermediate box completely separates from below guide sleeve, and logic control circuit controls clamp and releases and falls into material receiving mechanism in the guide sleeve of good processing.

Description

Technical Field

[0001] This utility model relates to the technical field of guide sleeve processing equipment, and specifically discloses a chamfering device for the hole of a guide sleeve. Background Technology

[0002] As a key functional component widely used in precision mechanical motion systems, the guide sleeve's fundamental engineering role is to provide high-precision physical guidance and spatial constraint paths for the linear or rotational motion of rigid shaft-like parts undergoing reciprocating or rotary motion. Specifically, through its pre-designed internal bore structure, it provides a cylindrical through-hole channel with precise dimensions, standardized shape, smooth inner walls, and a precise clearance fit with the target moving part. The core function of this internal channel is to forcibly constrain the degree of freedom of movement of the mating shaft to a unique, pre-designed linear axial trajectory or rotational axis, ensuring that the moving shaft does not experience unexpected radial offset, angular runout, or vibration during operation. This maintains the spatial accuracy and repeatability of the motion path of the entire motion system under high-speed or high-precision operating conditions. The specific chamfering operation performed on the edge of this bore aims to eliminate the sharp right-angled edges or microscopic burrs inherent in the original machined bore, transforming them into a smooth conical transition shape with a pre-designed angle and width. The chamfered structure of the guide sleeve hole is not merely an auxiliary geometric modification, but a pre-designed structural feature with key functional attributes that is deeply embedded in the core motion guidance function requirements of the guide sleeve. It provides indispensable physical structure optimization support and operational safety guarantee for ensuring that the guide sleeve hole and its mating moving parts achieve reliable, stable, efficient and long-life high-precision guidance and constraint functions.

[0003] Traditional guide sleeve hole chamfering processes generate a large amount of machining waste, which is directly scattered in the machine tool and accumulates there. The machining debris accumulated in dead corners is not easy to clean. Therefore, a guide sleeve hole chamfering device was invented to address this defect. Utility Model Content

[0004] To address the problem of large amounts of processing waste accumulating in dead corners and being difficult to clean, this utility model provides a chamfering device for the hole of a guide sleeve.

[0005] This utility model is achieved through the following technical solution: A chamfering device for the hole of a guide sleeve includes a CNC machine tool, the clamping part of the CNC machine tool is used to clamp the guide sleeve, and it also includes a material receiving mechanism for collecting the guide sleeve, a processing mechanism and a collecting mechanism installed on the CNC machine tool. The processing mechanism includes a cutting tool that can process the guide sleeve, a support seat that provides support for the cutting tool and can move within the CNC machine tool, and an electric cylinder that can push the support frame. The CNC machine tool is provided with a logic control circuit that can control the clamping and releasing of the guide sleeve by the clamp.

[0006] The collection mechanism includes an intermediate box mounted on a support base and located below the cutting tool to collect machining waste, and a central box installed inside the CNC machine tool. The intermediate box has an opening at the top, the length of which is greater than that of the guide sleeve, and the width of which is greater than the outer diameter of the guide sleeve. When the electric cylinder pushes the support frame to the farthest distance, the intermediate box is located directly below the guide sleeve. When the electric cylinder pulls the support frame to the closest distance, the intermediate box is completely detached from below the guide sleeve. The intermediate box and the central box are connected by a central pipe.

[0007] The electric cylinder drives the support base to move the cutting tool. When the electric cylinder pushes the support frame to its farthest distance, the intermediate box is located directly below the guide sleeve. The cutting tool processes the guide sleeve, and the waste generated during the processing falls into the intermediate box below the guide sleeve. The waste then enters the collection box through the collection pipe, thus completing the collection of processing waste and preventing it from accumulating in dead corners. After the guide sleeve is completed, the electric cylinder gradually pulls the support frame and moves the intermediate box away from the guide sleeve. When the electric cylinder pulls the support frame to its closest distance, the intermediate box is completely detached from below the guide sleeve. At this time, the logic control circuit controls the fixture to release the processed guide sleeve, which then falls into the receiving mechanism.

[0008] A further improvement of this utility model is that the CNC machine tool is provided with a material discharge port, which is located below the fixture part of the CNC machine tool. The material receiving mechanism includes a collection box installed below the material discharge port and inside the CNC machine tool. A cover is installed at the connection between the CNC machine tool and the collection box, and the cover is connected to the collection box.

[0009] A further improvement of this utility model is that the support base includes a movable frame, which is slidably installed inside the CNC machine tool. The telescopic end of the electric cylinder is fixedly connected to the movable frame. A limit rod is installed on the side of the movable frame facing the guide sleeve. The limit rod provides installation support for the tool. When the telescopic end of the electric cylinder reaches the maximum extension, the cutting edge of the tool contacts the edge of the end face of the guide sleeve hole.

[0010] A further improvement of this utility model is that a connecting plate is installed on the side of the movable frame facing the guide sleeve. The connecting plate is located below the cutter and above the material discharge port. The length of the material discharge port is greater than the length of the guide sleeve, and the width of the material discharge port is greater than the outer surface diameter of the guide sleeve.

[0011] A further improvement of this utility model is that an intermediate box is installed above the connecting plate, the intermediate box is located below the cutter, and two baffles are symmetrically fixedly installed on the upper side of the intermediate box. The sides of the two baffles facing the guide sleeve are both inclined surfaces. The distance between the inclined surfaces of the baffles and the cutter gradually decreases from top to bottom, and the minimum distance between the inclined surfaces of the baffles is greater than the diameter of the outer surface of the guide sleeve.

[0012] A further improvement of this utility model is that the central pipe is connected to the lower part of the intermediate box, the central pipe is a flexible tube, and the end of the central pipe away from the intermediate box is connected to the central box.

[0013] As can be seen from the above technical solution, the beneficial effects of this utility model are: the electric cylinder drives the tool to move by pushing the support seat. When the electric cylinder pushes the support frame to the farthest distance, the intermediate box is located directly below the guide sleeve. The tool processes the guide sleeve, and the waste generated during the processing of the guide sleeve falls into the intermediate box below the guide sleeve and enters the collection box through the collection pipe, thereby completing the collection of processing waste and avoiding the accumulation of processing waste in dead corners. After the guide sleeve is completed, the electric cylinder gradually pulls the support frame and drives the intermediate box to gradually move away from the guide sleeve. When the electric cylinder pulls the support frame to the closest distance, the intermediate box is completely detached from below the guide sleeve. At this time, the logic control circuit controls the fixture to release the processed guide sleeve, and the processed guide sleeve falls into the receiving mechanism. Attached Figure Description

[0014] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram showing the positional relationship between the CNC machine tool and the machining mechanism of this utility model.

[0017] Figure 3 for Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0018] Figure 4 for Figure 2 A magnified schematic diagram of the structure at point B in the middle.

[0019] Figure 5 This is a schematic diagram of the processing mechanism of this utility model.

[0020] Figure 6 This is a schematic diagram of the collection mechanism of this utility model.

[0021] Reference numerals: 1-CNC machine tool; 2-Receiving mechanism; 3-Guide sleeve; 4-Machining mechanism; 5-Collection mechanism; 201-Cover; 202-Push cart; 203-Collection box; 401-Fixed track; 402-Electric cylinder; 403-Moving frame; 404-Mounting plate; 405-Limit rod; 406-Fastening bolt; 407-Cutting tool; 408-Discharge port; 501-Concentrating box; 502-Water distribution pipe; 503-Support block; 504-Connecting plate; 505-Side panel; 506-Intermediate box; 507-Baffle; 508-Concentrating pipe. Detailed Implementation

[0022] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0023] Example

[0024] As attached Figure 1 and attached Figure 4 As shown, this utility model discloses a chamfering device for the hole of a guide sleeve. The device includes a CNC machine tool 1, on which a feeding device is installed. The feeding device is connected to the fixture part of the CNC machine tool 1. The feeding device transports the guide sleeve 3, processed in the previous step (such as drilling), to the fixture part of the CNC machine tool 1. A logic control circuit is installed inside the CNC machine tool 1, electrically connected to the feeding device and the fixture. The logic control circuit can control the clamping and releasing of the guide sleeve 3 by the fixture. A motor is installed inside the CNC machine tool 1. The guide sleeve 3 is installed on the fixture part of the CNC machine tool 1, and the motor is connected to the fixture part of the CNC machine tool 1. The guide sleeve 3 is installed below the coolant spray pipe of the CNC machine tool 1. A receiving mechanism 2 is connected to the inside of the CNC machine tool 1. The receiving mechanism 2 can collect the guide sleeve 3 processed by the CNC machine tool 1. The system includes a machining mechanism 4 and a collection mechanism 5 installed on a CNC machine tool 1. The machining mechanism 4 includes a cutting tool 407 that can machine the guide sleeve 3, a support base that provides support for the cutting tool 407 and can move within the CNC machine tool 1, and an electric cylinder 402 that can push the support frame. The collection mechanism 5 includes an intermediate box 506 installed on the support base and located below the cutting tool 407 to collect machining waste, and a collection box 501 installed inside the CNC machine tool 1. The intermediate box 506 has an opening at the top, the length of which is greater than that of the guide sleeve 3, and the width of which is greater than the outer diameter of the guide sleeve 3. When the electric cylinder 402 pushes the support frame to the farthest distance, the intermediate box 506 is located directly below the guide sleeve 3. When the electric cylinder 402 pulls the support frame to the closest distance, the intermediate box 506 is completely detached from below the guide sleeve 3. The intermediate box 506 and the collection box 501 are connected by a collection pipe 508.

[0025] The electric cylinder 402 drives the support base to move the cutting tool 407. When the electric cylinder 402 pushes the support frame to the farthest distance, the intermediate box 506 is located directly below the guide sleeve 3. The cutting tool 407 processes the guide sleeve 3, and the waste generated during the processing of the guide sleeve 3 falls into the intermediate box 506 below the guide sleeve 3 and enters the collection box 501 through the collection pipe 508, thereby completing the collection of processing waste and avoiding the accumulation of processing waste in dead corners. After the guide sleeve 3 is completed, the electric cylinder 402 gradually pulls the support frame and drives the intermediate box 506 to gradually move away from the guide sleeve 3. When the electric cylinder 402 pulls the support frame to the closest distance, the intermediate box 506 is completely detached from below the guide sleeve 3. At this time, the logic control circuit controls the fixture to release the processed guide sleeve 3, and the processed guide sleeve 3 falls into the receiving mechanism 2.

[0026] As attached Figure 1 and attached Figure 4 As shown, the CNC machine tool 1 is provided with a material discharge port 408. The length of the material discharge port 408 is greater than the length of the guide sleeve 3, and the width of the material discharge port 408 is greater than the outer diameter of the guide sleeve 3. The material discharge port 408 is located below the fixture part of the CNC machine tool 1. The material receiving mechanism 2 includes a collection box 203 installed below the material discharge port 408 and located inside the CNC machine tool 1. A cover 201 is installed at the connection between the CNC machine tool 1 and the collection box 203. The cover 201 is connected to the collection box 203. Conveyor belt 1 and conveyor belt 2 are installed inside the collection box 203 and the cover 201. Motor 2 is installed inside the CNC machine tool 1. Two drive rollers are installed inside the cover 201. The two drive rollers and the conveyor belt form a belt drive. One drive roller is fixedly connected to the output end of the motor. A motor is fixedly installed on the side of the cover 201. The output end of the motor extends into the cover 201 and forms a belt drive with the cover 201. Two drive rollers are installed inside the cover 201. One drive roller is fixedly connected to the output end of the motor. The conveyor belt and the two drive rollers form a belt drive. The conveyor belt is connected to the conveyor belt. A push cart 202 is placed below the outlet of the cover 201. The processed guide sleeve 3 is collected by the push cart 202.

[0027] Motors 2 and 3 start, and after processing, the electric cylinder 402 moves in the reverse direction. The moving frame 403 brings the tool 407 and the intermediate box 506 back to their original positions. Then, the logic control circuit controls the fixture to release the guide sleeve 3. The guide sleeve 3 falls into the collection box 203 through the drop port 408. Motor 2 drives the conveyor belt 1 through the transmission roller 1 to transport the guide sleeve 3 to the cover 201. Motor 3 transports the guide sleeve 3 to the outlet of the cover 201 through the transmission roller 2 and the conveyor belt 2, and it falls into the push cart 202 through the outlet of the cover 201, thus completing the collection of the processed guide sleeve 3.

[0028] As attached Figure 1 and attached Figure 4As shown, this utility model discloses a support base, which includes a movable frame 403. A fixed rail 401 is fixedly installed inside the CNC machine tool 1. A groove is provided on the fixed rail 401. The movable frame 403 is slidably installed on the inner wall of the groove of the fixed rail 401. The telescopic end of the electric cylinder 402 is fixedly connected to the movable frame 403. The electric cylinder 402 is fixedly installed on the fixed rail 401. An mounting plate 404 is installed on the side of the movable frame 403 facing the guide sleeve 3. The sides of the mounting plate 404 are symmetrically welded. There are two limit rods 405. Each limit rod 405 and the cutter 407 have concentric threaded holes on their two sides. The cutter 407 is fastened to the limit rod 405 by fastening bolts 406 and threaded holes. When the electric cylinder 402 extends to its maximum extension, the cutting edge of the cutter 407 contacts the edge of the end face of the guide sleeve 3. The motor drives the guide sleeve 3 to rotate through the clamp, and then the cutting edge of the cutter 407 cuts the edge of the end face of the guide sleeve 3, thereby completing the chamfering operation.

[0029] The guide sleeve 3, processed in the previous step, is intermittently fed into the fixture part of the CNC machine tool 1 by the feeding device. Then, the release and clamping of the fixture are controlled by the logic control circuit to fix the guide sleeve 3. Then, the motor is started and drives the guide sleeve 3 to rotate. At the same time, the circulating cooling system sprays coolant into the guide sleeve 3 through the coolant spray pipe. Then, the electric cylinder 402 is started and drives the moving frame 403 to slide along the fixed track 401. The moving frame 403 drives the tool 407 to move closer to the guide sleeve 3 through the limit rod 405. Then, the cutting edge of the end face of the hole of the guide sleeve 3 is cut and chamfered by the cutting edge of the tool 407.

[0030] As attached Figure 1 and attached Figure 4 As shown, a connecting plate 504 is installed on the side of the movable frame 403 facing the guide sleeve 3. The connecting plate 504 is located below the cutter 407 and above the discharge port 408. A support block 503 is fixedly connected to the lower side of the connecting plate 504. The support block 503 is welded to the side of the movable frame 403 facing the guide sleeve 3. Two side panels 505 are symmetrically fixedly installed on the upper side of the connecting plate 504. An intermediate box 506 is fixedly installed between the two side panels 505. The intermediate box 506 is located below the cutter 407. A support block 503 is symmetrically fixedly installed on the upper side of the intermediate box 506. There are two baffles 507, and the sides of the two baffles 507 facing the guide sleeve 3 are both inclined. The distance between the inclined surfaces of the baffles 507 and the cutter 407 gradually decreases from top to bottom. The minimum distance between the inclined surfaces of the baffles 507 is greater than the diameter of the outer surface of the guide sleeve 3. The uppermost end face of the baffles 507 is higher than the highest point of the outer surface of the guide sleeve 3. The minimum distance between the inclined surfaces of the baffles 507 is less than the length of the intermediate box 506, and the maximum distance between the inclined surfaces of the baffles 507 is greater than the length of the intermediate box 506. The baffles 507 block the cut waste and coolant and let them fall into the intermediate box 506 along the inclined surfaces.

[0031] As attached Figure 1 and attached Figure 4 As shown, the central pipe 508 is connected to the lower part of the intermediate box 506. A rectangular through hole is provided on the side of the side panel 505. The central pipe 508 passes through the rectangular through hole of the side panel 505. The central pipe 508 is a flexible hose. The end of the central pipe 508 away from the intermediate box 506 is connected to the central box 501. A filter screen is provided inside the central box 501. A circulating cooling system is installed inside the CNC machine tool 1. The central box 501 is a split type. The central box 501 is composed of a box body and a cover. The box body is located below the cover. The box body and the cover are fitted together. The box body is hollow inside. The filter screen is installed inside the box body. A water distribution pipe 502 is connected to the side of the box body. The connection point of the water distribution pipe 502 and the box body is located below the filter screen. The water distribution pipe 502 is connected to the input end of the circulating cooling system. The output end of the circulating cooling system is connected to the coolant spray pipe.

[0032] During the cutting process of the cutting edge of the tool 407 cutting the end face edge of the guide sleeve 3 hole, the waste material generated and the coolant sprayed from the coolant spray pipe fall onto the upper surface of the baffle 507, and then fall into the intermediate box 506 through the inclined surface of the baffle 507. It then enters the box 501 through the central pipe 508, filters the processing waste through the filter screen, and the coolant re-enters the circulating cooling system through the water distribution pipe 502.

[0033] The working principle of this embodiment is as follows.

[0034] (i) The guide sleeve 3, which has been processed in the previous process, is intermittently fed into the fixture part of the CNC machine tool 1 by the feeding device. Then, the release and clamping of the fixture are controlled by the logic control circuit to fix the guide sleeve 3. Then, the motor is started and the motor drives the guide sleeve 3 to rotate. At the same time, the circulating cooling system sprays coolant into the guide sleeve 3 through the coolant spray pipe. Then, the electric cylinder 402 is started and drives the moving frame 403 to slide along the fixed track 401. The moving frame 403 drives the tool 407 to move towards the guide sleeve 3 through the limit rod 405. Then, the cutting edge of the hole end face of the guide sleeve 3 is cut and chamfered by the cutting edge of the tool 407.

[0035] (ii) At the same time, motors two and three start, and the electric cylinder 402 moves in reverse after processing. The moving frame 403 brings the tool 407 and the intermediate box 506 back to their original positions. Then, the logic control circuit controls the fixture to release the guide sleeve 3. The guide sleeve 3 falls into the collection box 203 through the drop port 408. Motor two drives the conveyor belt one through the transmission roller one to transport the guide sleeve 3 to the cover 201. Motor three transports the guide sleeve 3 to the outlet of the cover 201 through the transmission roller two and the conveyor belt two. It falls into the push cart 202 through the outlet of the cover 201, thus completing the collection of the processed guide sleeve 3.

[0036] (iii) During the cutting process of the cutting edge of the guide sleeve 3 hole, the waste material generated by the cutting edge of the cutting tool 407 and the coolant sprayed from the coolant spray pipe fall onto the upper surface of the baffle 507, and then fall into the intermediate box 506 through the inclined surface of the baffle 507. It then enters the box 501 through the central pipe 508, filters the processing waste through the filter screen, and the coolant re-enters the circulating cooling system through the water distribution pipe 502.

[0037] The above description of the disclosed embodiments enables those skilled in the art to make or use the present 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 present invention. Therefore, the present 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. A chamfering device for the hole portion of a guide sleeve, comprising a CNC machine tool (1), wherein the clamping portion of the CNC machine tool (1) is used for clamping the guide sleeve (3), characterized in that, It also includes a receiving mechanism (2) for collecting the guide sleeve (3), a processing mechanism (4) and a collecting mechanism (5) mounted on the CNC machine tool (1). The processing mechanism (4) includes a cutting tool (407) that can process the guide sleeve (3), a support seat that provides support for the cutting tool (407) and can move within the CNC machine tool (1), and an electric cylinder (402) that can push the support frame. The CNC machine tool (1) is provided with a logic control circuit that can control the clamping and releasing of the fixture on the guide sleeve (3). The collection mechanism (5) includes an intermediate box (506) installed on the support base and located below the tool (407) to collect processing waste and a central box (501) installed inside the CNC machine tool (1). The intermediate box (506) has an opening at the top, the length of which is greater than that of the guide sleeve (3) and the width of which is greater than the outer diameter of the guide sleeve (3). When the electric cylinder (402) pushes the support frame to the farthest distance, the intermediate box (506) is located directly below the guide sleeve (3). When the electric cylinder (402) pulls the support frame to the closest distance, the intermediate box (506) is completely detached from below the guide sleeve (3). The intermediate box (506) and the central box (501) are connected by a central pipe (508).

2. The chamfering device for the hole portion of a guide sleeve according to claim 1, characterized in that, The CNC machine tool (1) is provided with a material discharge port (408), which is located below the fixture part of the CNC machine tool (1). The material receiving mechanism (2) includes a collection box (203) installed below the material discharge port (408) and inside the CNC machine tool (1). A cover (201) is installed at the connection between the CNC machine tool (1) and the collection box (203), and the cover (201) is connected to the collection box (203).

3. The chamfering device for the hole portion of a guide sleeve according to claim 2, characterized in that, The support base includes a movable frame (403), which is slidably installed inside the CNC machine tool (1). The telescopic end of the electric cylinder (402) is fixedly connected to the movable frame (403). A limit rod (405) is installed on the side of the movable frame (403) facing the guide sleeve (3). The limit rod (405) provides installation support for the tool (407). When the telescopic end of the electric cylinder (402) reaches its maximum extension, the cutting edge of the tool (407) contacts the edge of the end face of the guide sleeve (3).

4. The chamfering device for the hole portion of a guide sleeve according to claim 3, characterized in that, A connecting plate (504) is installed on the side of the movable frame (403) facing the guide sleeve (3). The connecting plate (504) is located below the cutter (407) and above the discharge port (408). The length of the discharge port (408) is greater than the length of the guide sleeve (3), and the width of the discharge port (408) is greater than the outer surface diameter of the guide sleeve (3).

5. The chamfering device for the hole portion of a guide sleeve according to claim 4, characterized in that, An intermediate box (506) is installed above the connecting plate (504). The intermediate box (506) is located below the tool (407). Two baffles (507) are fixedly installed symmetrically on the upper side of the intermediate box (506). The sides of the two baffles (507) facing the guide sleeve (3) are both inclined. The distance between the inclined surface of the baffle (507) and the tool (407) gradually decreases from top to bottom. The minimum distance between the inclined surfaces of the baffles (507) is greater than the diameter of the outer surface of the guide sleeve (3).

6. The chamfering device for the hole portion of a guide sleeve according to claim 5, characterized in that, The central tube (508) is connected to the lower part of the intermediate box (506). The central tube (508) is a flexible tube, and the end of the central tube (508) away from the intermediate box (506) is connected to the central box (501).

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