Guide plate trepanning device and drill bit for chain saw trimming equipment
By introducing protective components and flow channels into the drilling device of the chainsaw guide plate, the guide plate is supported and cooled, which solves the problems of warping and hole position misalignment, improves processing accuracy and stability, and reduces production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-03-11
- Publication Date
- 2026-04-07
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing chainsaw guide plates are prone to warping and hole displacement during the drilling process, and lack effective cooling measures, which affect processing accuracy and stability.
An opening device including a drive seat, a tool holder, and a protective component is designed. Combined with a flow pipe and an adjustment component, the guide plate is supported by the protective component. The cutting fluid is used for cooling and chip removal, and the cutting fluid flow rate is adjusted to match the machining requirements.
It effectively prevents guide plate warping and hole misalignment, improves machining accuracy and stability, reduces production costs, and extends tool life.
Smart Images
Figure CN121798008A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of chainsaw guide plate hole-making technology, specifically to a guide plate hole-making device and drill bit for chainsaw trimming equipment. Background Technology
[0002] As a core component of the transmission system, the chainsaw guide plate plays a crucial role in supporting the saw chain and guiding its movement. Its surface openings not only serve to install guide wheel shafts and positioning structures, but also facilitate heat dissipation, weight reduction, and reduced operational vibration and noise. During chainsaw operation, the high-speed friction of the saw chain generates a large amount of heat. If this heat cannot be dissipated in time, it can easily lead to deformation and cracking of the guide plate. Simultaneously, the accumulation of sawdust and dust from cutting can hinder the saw chain's operation and exacerbate component wear. The oil injection hole is a critical channel for replenishing lubricating grease and reducing gear resistance, directly affecting the stability and efficiency of chainsaw trimming operations. Guide plate openings are designed with basic functions in mind. By creating circular through-holes, the weight of the guide plate is reduced, operational vibration and noise are decreased, and a lubricating oil channel is provided for the saw chain transmission, preventing overheating and jamming caused by metal-to-metal friction.
[0003] As a core support component of chainsaws, guide plates are mostly made of thin steel plates through stamping. When existing drilling devices process thin steel plate components such as chainsaw guide plates, the instantaneous impact force of the drill bit can cause localized stress concentration on the thin steel plate. This can lead to warping, wavy deformation, or even defects such as hole misalignment and hole wall tilting in the edge area of the guide plate. This affects the assembly accuracy of the guide plate and the subsequent stability of the chainsaw operation. At the same time, most traditional drilling devices are not equipped with targeted cooling components. During drilling or stamping, the high-speed friction between the tool and the plate generates a large amount of heat instantaneously. Thin steel plates conduct heat quickly but have low heat dissipation efficiency, and heat tends to accumulate in the processing area. Sustained high temperatures may affect the service life of the tools and increase production consumable costs.
[0004] To address the aforementioned issues, innovative design based on existing methods is urgently needed. Summary of the Invention
[0005] The purpose of this invention is to provide a guide plate opening device and drill bit for chainsaw trimming equipment, in order to solve the problems mentioned in the background art, such as the warping of thin steel plates during opening affecting the assembly accuracy of the guide plate and the lack of targeted cooling components. The technical solution of this invention addresses the problem that the existing technical solutions are too simplistic and provides a solution that is significantly different from the existing technology.
[0006] To achieve the above objectives, the present invention provides the following technical solution: In a first aspect, a guide plate opening device for a chainsaw trimming equipment is provided, comprising a punching machine, a drive seat, and a cutter seat. The punching machine is provided with a drive seat, the drive seat is rotatably mounted inside the drive seat, a protective seat is mounted on the side wall of the drive seat, a protective component is provided inside the protective seat, a rotating seat is fixed at the top of the cutter seat, and an adjustment component is provided inside the drive seat. The protective assembly includes a movable seat that is slidably installed inside the protective base. The inner wall of the movable seat has multiple reflective grooves. A rotating rod is elastically rotatably installed inside the protective base. Connecting rods are rotatably installed at both ends of the rotating rod. Connecting seats are fixed at the bottom of the drive seat and the top of the movable seat. The ends of the connecting rods are rotatably connected to the connecting seats.
[0007] Preferably, the bottom of the movable seat extends beyond the bottom of the protective seat.
[0008] Preferably, the adjustment assembly includes a sliding seat slidably mounted in the drive seat, the sliding seat having a moving groove on its side wall, three centrifugal throwing blocks rotatably mounted on the side wall of the rotating seat, a rotating ring rotatably mounted in the drive seat, a first guide groove on the surface of the rotating ring, a moving block fixed to the bottom of the rotating ring, a guide rod slidably mounted in the first guide groove, an adjustment block fixed to the end of the guide rod, a guide block mounted on the side wall of the adjustment block, and a fixing ring fixed in the drive seat, the fixing ring having a second guide groove at its bottom.
[0009] Preferably, the moving groove is designed to be inclined, and the moving block is located inside the moving groove.
[0010] Preferably, the rotating seat sidewall is provided with a connecting spring, and the centrifugal throwing block is connected to the rotating seat sidewall through the connecting spring.
[0011] Preferably, both the first guide groove and the second guide groove are designed to be inclined, and the guide block is slidably installed in the second guide groove.
[0012] Secondly, the present invention provides a drill bit for a chainsaw trimming device, including a hole-opening tool, the hole-opening tool being installed at the bottom of a tool holder, and a flow channel being provided inside the hole-opening tool.
[0013] Preferably, the middle section of the drilling tool is provided with multiple injection holes that are connected to the flow channel, and the positions of the injection holes correspond to the reflective groove.
[0014] Preferably, the tool holder has a cooling pipe for the flow of cutting fluid, and the flow pipe is connected to the cooling pipe.
[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention, through the setting of a drive seat, a tool holder, and a protective component, allows the protective component to move synchronously with the drilling tool. After contacting the guide plate, it rises and falls with the drilling tool, forming an all-round compression support on the part of the guide plate to be processed. This counteracts the instantaneous impact force generated by the drilling tool during the drilling operation, preventing warping of the edge area of the guide plate. At the same time, it does not interfere with the feed and processing trajectory of the drilling tool, achieving coordinated protection and drilling operation, and effectively ensuring the processing accuracy of the thin steel plate guide plate.
[0016] 2. This invention, through the design of a hole-opening tool, a flow channel, and an adjustment component, adaptively adjusts the flow diameter of the cutting fluid via centrifugal force according to the tool's rotation speed, thereby regulating the flow rate of the cutting fluid. This achieves a match between the flow rate and the cutting requirements. While the cutting fluid cools the hole-opening tool through the flow channel, it also forms a reverse jet flow under the action of the spray hole and the reflector groove, flushing the machining area. This achieves dual cooling of the hole-opening tool and the guide plate, and also flushes away machining debris from the hole-opening process, ensuring smooth hole-opening operations and guaranteeing the machining accuracy and surface quality of the hole. Attached Figure Description
[0017] Figure 1 This is a cross-sectional view of the protective base of the present invention; Figure 2 This is a three-dimensional structural diagram of the present invention; Figure 3 This is a cross-sectional view of the movable seat of the present invention; Figure 4 This is a partial cross-sectional view of the present invention; Figure 5 This is a schematic diagram of a partially disassembled structure of the present invention; Figure 6 This is a schematic diagram of the structure of the rotating seat, centrifugal throwing block, and sliding seat of the present invention; Figure 7 This is a schematic diagram of the disassembled structure of the adjustment component of the present invention; Figure 8 This is a bottom view of the disassembled structure of the adjustment component of the present invention; In the diagram: 1. Drilling machine; 101. Drive seat; 2. Tool holder; 201. Drilling tool; 202. Flow pipe; 3. Protective seat; 301. Movable seat; 302. Reflective groove; 4. Rotating rod; 401. Connecting rod; 402. Connecting seat; 5. Rotating seat; 501. Centrifugal throwing block; 502. Connecting spring; 6. Sliding seat; 601. Moving groove; 7. Rotating ring; 701. First guide groove; 702. Moving block; 8. Adjusting block; 801. Guide rod; 802. Guide block; 9. Fixed ring; 901. Second guide groove. Detailed Implementation
[0018] To further illustrate the technical means and effects adopted by the present invention in order to achieve the intended purpose, the following detailed description is provided in conjunction with the accompanying drawings and preferred embodiments, based on the specific implementation methods, structures, features and effects of the present invention.
[0019] Please see Figures 1-8 This invention provides a technical solution: a guide plate opening device and drill bit for chainsaw trimming equipment, including a drilling machine 1, a drive base 101 and a tool holder 2. The drilling machine 1 is provided with a drive base 101, and the tool holder 2 is rotatably installed inside the drive base 101. A protective base 3 is installed on the side wall of the drive base 101, and a protective component is provided inside the protective base 3. A rotating seat 5 is fixed at the top of the tool holder 2, and an adjustment component is provided inside the drive base 101. The rotating seat 5 fixed at the top of the tool holder 2 and the adjustment component built into the drive base 101 are linked together, which can adaptively adjust the cutting fluid flow rate according to the change of the rotation speed of the opening tool 201, so as to achieve the matching of the flow rate with the cutting requirements, ensure the cooling and chip removal effect, avoid the waste of cutting fluid, and reduce the processing cost. The protective assembly includes a movable seat 301 that is slidably installed inside the protective seat 3. The inner wall of the movable seat 301 has multiple reflective grooves 302 to guide the cutting fluid to form a uniformly covered reflective flow field and to precisely guide the cutting fluid to the machining part. A rotating rod 4 is elastically rotatably installed inside the protective seat 3. Connecting rods 401 are rotatably installed at both ends of the rotating rod 4. Connecting seats 402 are fixed at the bottom of the drive seat 101 and the top of the movable seat 301. The ends of the connecting rods 401 are rotatably connected to the connecting seats 402. When the drilling tool 201 descends to cut, it drives the movable seat 301 to adaptively adjust its position, maintaining continuous support while precisely avoiding the feed trajectory of the drilling tool 201 and not interfering with the normal operation of the drilling.
[0020] As one embodiment of the present invention, the bottom of the movable seat 301 extends out of the bottom of the protective seat 3. Before the drilling operation, the movable seat 301 abuts against the area to be processed on the guide plate before the drilling tool 201. The rigid support is formed by uniform compression, which effectively offsets the instantaneous impact force of the drilling tool 201 cutting, and avoids the edge warping and hole displacement of the thin steel plate guide plate from the root.
[0021] In one embodiment of the present invention, the adjusting assembly includes a sliding seat 6 slidably mounted in a drive seat 101, the sliding seat 6 having a moving groove 601 on its side wall; three centrifugal blocks 501 rotatably mounted on the side wall of a rotating seat 5, which generate greater centrifugal force as the rotation speed of the drilling cutter 201 increases; a rotating ring 7 rotatably mounted in the drive seat 101, the rotating ring 7 having a first guide groove 701 on its surface; a moving block 702 fixed to the bottom of the rotating ring 7; a guide rod 801 slidably mounted in the first guide groove 701; an adjusting block 8 fixed to the end of the guide rod 801; and a guide block 802 mounted on the side wall of the adjusting block 8; and a component fixed to the drive seat 101. The fixed ring 9 inside the seat 101 has a second guide groove 901 at its bottom. The first guide groove 701 on the surface of the rotating ring 7 slides with the guide rod 801 of the adjusting block 8. Combined with the limiting and guiding of the guide block 802 by the second guide groove 901 of the fixed ring 9, the rotational motion can be converted into the radial linear movement of the adjusting block 8, which directly changes the flow diameter of the cutting fluid. The higher the speed, the greater the centrifugal force, the larger the flow diameter, and the greater the flow rate. Conversely, it automatically decreases. This can provide sufficient cutting fluid during high-speed machining to achieve effective cooling and chip removal, and reduce flow waste at low speeds, thereby reducing production costs and improving overall machining quality and efficiency.
[0022] In one embodiment of the present invention, the moving groove 601 is inclined, and the moving block 702 is located in the moving groove 601. The inclined moving groove 601 can convert the radial linear movement of the sliding seat 6 into the circumferential rotational force of the moving block 702 through the guiding effect of the inclined surface, thereby driving the rotating ring 7 to rotate around the axis.
[0023] In one embodiment of the present invention, a connecting spring 502 is provided on the side wall of the rotating seat 5. The centrifugal throwing block 501 is connected to the side wall of the rotating seat 5 through the connecting spring 502. The connecting spring 502 has elastic reset characteristics. When the rotation speed of the drilling tool 201 decreases, the centrifugal force on the centrifugal throwing block 501 weakens. The spring force can quickly pull the centrifugal throwing block 501 to retract and reset towards the side wall of the rotating seat 5. Then, through the linkage structure, the adjusting block 8 is moved back, so that the flow diameter of the cutting fluid is reduced synchronously, ensuring that the flow rate of the cutting fluid can respond in real time to the increase or decrease of the rotation speed of the drilling tool 201.
[0024] In one embodiment of the present invention, both the first guide groove 701 and the second guide groove 901 are inclined. The guide block 802 is slidably installed in the second guide groove 901. The first guide groove 701 converts the rotational motion of the rotating ring 7 into the radial driving force of the adjusting block 8 through sliding cooperation with the guide rod 801. The second guide groove 901 limits the movement direction of the adjusting block 8 by limiting the guide block 802, preventing it from deviating. The superposition of the double inclined guides ensures that the adjusting block 8 can only move linearly along the radial direction of the drive seat 101, ensuring the adjustment accuracy of the cutting fluid flow port and achieving precise matching between the flow rate and cutting requirements.
[0025] The tool includes a hole-opening tool 201, which is installed at the bottom of the tool holder 2. The hole-opening tool 201 has a flow channel 202 inside, which can directly transport cutting fluid from inside the tool holder 2 to inside the hole-opening tool 201 to form an internal cooling channel, so as to avoid problems such as dulling and chipping of the hole-opening tool 201 due to high temperature, and extend the service life of the hole-opening tool 201.
[0026] In one embodiment of the present invention, the middle section of the hole-opening tool 201 is provided with multiple spray holes that are connected to the flow channel 202. The positions of the spray holes correspond to the reflective groove 302. The cutting fluid transported by the flow channel 202 is sprayed out directionally through the spray holes. Based on the positional correspondence between the spray holes and the reflective groove 302, the cutting fluid can be precisely guided by the reflective groove 302 to the machining area of the guide plate, so that the cutting fluid can fully cover the periphery of the hole position of the guide plate and quickly remove the heat generated by cutting.
[0027] As one embodiment of the present invention, a cooling pipe for the flow of cutting fluid is provided in the tool holder 2. The flow pipe 202 is connected to the cooling pipe, which is beneficial to adjust the diameter of the cooling pipe by the adjustment component located in the drive seat 101, so as to realize the real-time matching of the delivery of cutting fluid and the cutting conditions of the drilling tool 201.
[0028] Working principle: First, the guide plate is fixed on the processing platform of the drilling machine 1. After the device is started, the drive seat 101 outputs power to drive the tool holder 2 to drive the drilling tool 201 to descend smoothly in the vertical direction and gradually approach the part to be processed on the guide plate. Since the bottom end of the movable seat 301 extends out of the protective seat 3, the bottom end of the movable seat 301 first abuts against the surface of the guide plate. Through the uniformly distributed extrusion support force, a constraint is formed, which forms an all-round extrusion support on the part to be processed on the guide plate, offsetting the instantaneous impact force generated by the drilling tool 201 during the drilling operation. This avoids defects such as edge warping and hole position displacement caused by the concentrated force on the thin steel plate guide plate from the root. As the drilling tool 201 continues to descend and performs cutting work, the connecting seat 402 fixed on the side wall of the drive seat 101 pushes the rotating rod 4 to rotate adaptively around the center point through the connecting rod 401. The movable seat 301 and the drilling tool 201 have synchronous and opposite relative movements. While maintaining the support and protection of the guide plate, it avoids the feed trajectory of the drilling tool 201 and does not affect the continuity and processing accuracy of the drilling operation. During the drilling process, the cutting fluid flows through the cooling pipes of the drive seat 101 and the tool holder 2, and through the flow pipe 202 inside the drilling tool 201. On the one hand, the cutting fluid flows at high speed in the flow pipe 202, quickly carrying away the heat generated by the drilling tool 201 during cutting and reducing the temperature of the drilling tool 201. On the other hand, the spray hole at the bottom of the flow pipe 202 sprays out the cutting fluid, which forms a uniformly covered reflective flow field through the reflective groove 302, covering the machining area of the guide plate and reducing the temperature of the workpiece machining area. At the same time, the impact force of the high-pressure water flow washes away the machining waste generated by drilling, improving the overall production efficiency. As the rotation speed of the drilling tool 201 gradually increases according to the processing requirements, the rotation speed of the rotating seat 5 fixed at the top of the tool holder 2 increases synchronously. The centrifugal force on the centrifugal throwing block 501 on the rotating seat 5 gradually increases with the increase of rotation speed. Under the action of centrifugal force, it expands outward around the axis and squeezes the connecting spring 502 to rotate. The expansion motion of the centrifugal throwing block 501 pushes the sliding seat 6 to move linearly along the radial direction of the drive seat 101. Since the moving groove 601 on the sliding seat 6 adopts an inclined structure design and the moving block 702 is embedded in the moving groove 601, the linear movement of the sliding seat 6 is squeezed by the inclined guiding effect of the moving groove 601. The pressure of the moving block 702 causes the rotating ring 7 to rotate around the axis. Since the guide rod 801 and the guide block 802 are fixed on the two side walls of the adjusting block 8 respectively, and the guide rod 801 is slidably installed in the first guide groove 701 opened on the surface of the rotating ring 7, and the guide block 802 is slidably installed in the second guide groove 901 opened at the bottom of the fixed ring 9, the rotating ring 7 rotates while driving the adjusting block 8 to move linearly in the radial direction, changing the flow diameter of the cutting fluid. By adaptively adjusting the flow rate of the cutting fluid through centrifugal force, the flow rate is matched with the cutting requirements, ensuring the stability of the processing quality while reducing the cost of production consumables.
[0029] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.
Claims
1. A guide plate drilling device for a chainsaw trimming equipment, comprising a punch (1), a drive base (101), and a cutter holder (2), characterized in that: The punching machine (1) is provided with a drive seat (101), a tool holder (2) is rotatably installed inside the drive seat (101), a protective seat (3) is installed on the side wall of the drive seat (101), a protective component is provided inside the protective seat (3), a rotating seat (5) is fixed at the top of the tool holder (2), and an adjustment component is provided inside the drive seat (101). The protective assembly includes a movable seat (301) that is slidably installed inside the protective seat (3). The inner wall of the movable seat (301) is provided with multiple reflective grooves (302). A rotating rod (4) is elastically rotatably installed inside the protective seat (3). A connecting rod (401) is rotatably installed at both ends of the rotating rod (4). A connecting seat (402) is fixed at the bottom of the drive seat (101) and the top of the movable seat (301). The end of the connecting rod (401) is rotatably connected to the connecting seat (402).
2. The guide plate opening device for a chainsaw trimming equipment according to claim 1, characterized in that: The bottom of the movable seat (301) extends out of the bottom of the protective seat (3).
3. The guide plate opening device for a chainsaw trimming equipment according to claim 1, characterized in that: The adjustment assembly includes a sliding seat (6) slidably mounted in the drive seat (101), the sliding seat (6) having a moving groove (601) on its side wall, and three centrifugal sling blocks (501) rotatably mounted on the side wall of the rotating seat (5), and a rotating ring (7) rotatably mounted in the drive seat (101), the rotating ring (7) having a first guide groove (701) on its surface, a moving block (702) fixed at the bottom of the rotating ring (7), a guide rod (801) slidably mounted in the first guide groove (701), an adjustment block (8) fixed at the end of the guide rod (801), a guide block (802) mounted on the side wall of the adjustment block (8), and a fixing ring (9) fixed in the drive seat (101), the fixing ring (9) having a second guide groove (901) at its bottom.
4. The guide plate opening device for a chainsaw trimming equipment according to claim 3, characterized in that: The moving slot (601) is designed to be inclined, and the moving block (702) is located inside the moving slot (601).
5. The guide plate opening device for a chainsaw trimming equipment according to claim 3, characterized in that: The rotating seat (5) is provided with a connecting spring (502) on its side wall, and the centrifugal throwing block (501) is connected to the side wall of the rotating seat (5) through the connecting spring (502).
6. The guide plate opening device for a chainsaw trimming equipment according to claim 3, characterized in that: Both the first guide groove (701) and the second guide groove (901) are designed to be inclined, and the guide block (802) is slidably installed in the second guide groove (901).
7. A drill bit for a chainsaw trimming device, suitable for the guide plate opening device according to any one of claims 1-6, comprising an opening tool (201), characterized in that: The hole-opening tool (201) is installed at the bottom of the tool holder (2), and a flow channel (202) is opened inside the hole-opening tool (201).
8. A drill bit for a chainsaw trimming device according to claim 7, characterized in that: The middle section of the opening tool (201) is provided with multiple injection holes that are connected to the flow pipe (202), and the position of the injection holes corresponds to the reflective groove (302).
9. A drill bit for a chainsaw trimming device according to claim 7, characterized in that: The tool holder (2) has a cooling pipe for the flow of cutting fluid, and the flow pipe (202) is connected to the cooling pipe.