A gap-adjustable blade structure
Patent Information
- Application Number
- CN202522240767.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-23
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-10-23
AI Technical Summary
[0004]针对现有技术的不足，本实用新型提供了一种间隙可调式刀片结构，以解决调节刀座间隙时精度差，且刀座拆装过程繁琐的技术问题
该间隙可调式刀片结构，通过步进电机带动偏心轮和卡块的转动，从而可带动传动板和调节板的水平运动，进而可调整调节板顶部刀座的位置，使得可改变刀片本体与被加工件之间的间隙，避免人为操作偏差，确保刀片本体与被加工件间隙调节更精准，有效减少因间隙把控不准导致的加工瑕疵，保障不同工况下加工质量的一致性，同时通过在刀座底部设置的插销插入卡接套的内部，再通过转动卡接套两侧的旋接头带动锁紧头的运动，从而完成对插销的锁紧限位，方便了对刀座进行模块化的拆装，使得操作人员可快速完成刀座的拆卸与安装，大幅缩短设备停机换刀或维护的时间，提升设备连续作业效率。
Smart Images
Figure CN224896660U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of machining technology, specifically to an adjustable blade structure. Background Technology
[0002] In machining and cutting equipment, the precision of the gap between the cutting tool and the workpiece directly affects the machining quality; therefore, adjustable gap cutting tool structures are widely used. These structures typically require gap adjustment based on parameters such as the material being machined and its thickness. Furthermore, the tool holder, as the mounting base for the cutting tool, needs frequent disassembly and reassembly for tool replacement or maintenance. In existing technologies, cutting tool gap adjustment largely relies on manual operating mechanisms, while the fixing and disassembly of the tool holder employs conventional mechanical connections to meet basic adjustment and disassembly requirements.
[0003] Common structures for adjusting blade clearance often employ manual knobs to drive lead screws or lever assemblies for displacement adjustment. In this design, differences in the operator's hand strength and rotation angle directly affect the adjustment accuracy, making it difficult to maintain a consistent clearance between the blade and the workpiece. This is especially problematic when batch processing workpieces of different specifications, easily leading to machining defects such as burrs and breakage due to clearance deviations. Furthermore, existing tool holders are often fixed to the machine frame with multiple bolts, requiring individual bolt loosening during disassembly. Additionally, space constraints at some connection points make it difficult to access tools, resulting in cumbersome tool holder assembly and disassembly processes. This not only prolongs equipment downtime but also reduces continuous operation efficiency, failing to meet the requirements of machining. Therefore, a blade structure with adjustable clearance is proposed. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides an adjustable blade structure to solve the technical problems of poor accuracy when adjusting the blade holder gap and cumbersome blade holder assembly and disassembly process.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable blade structure, comprising: The mounting platform has mounting accessories connected to both sides of its top. An adjustment plate is inserted inside the mounting accessories, and a transmission plate is connected to the front side of the adjustment plate. A connecting frame is installed on the lower side of the mounting platform. A stepper motor is mounted on the surface of the connecting frame. An eccentric wheel is coaxially connected to the top of the rotor of the stepper motor. A locking block is hinged to the outer side of the upper surface of the eccentric wheel. A through groove is formed inside the transmission plate, the locking block is inserted into the through groove, and an insertion hole is formed inside the assembly end of the adjusting plate, with a pin inserted into the insertion hole; A snap-fit sleeve is installed on the lower surface of the adjusting plate at a position corresponding to the pin. A bearing plate is installed at the top of the pin, and a knife holder is installed on the upper surface of the bearing plate. Both sides of the snap-fit sleeve are screwed with screw heads, and the inner ends of the screw heads are connected to locking heads.
[0006] Preferably, the back of the assembly is equipped with a mounting frame, and an insert plate is inserted into the middle of the mounting frame. The front end of the insert plate is connected to the corresponding position on the back of the adjustment plate. The back of the assembly is connected to the adjustment plate through the mounting frame and the insert plate, which can form auxiliary support for the back of the adjustment plate, avoid the adjustment plate from shifting due to unilateral force when moving horizontally, ensure the linearity of the adjustment plate driving the tool holder to move, and further improve the accuracy of gap adjustment.
[0007] Preferably, guide rods are connected to both outer sides of the insert plate, and the outer ends of the guide rods penetrate through the corresponding positions of the mounting frame. Springs are sleeved on the outside of the guide rods. The guide rods on both sides of the insert plate can restrict the movement direction of the insert plate and prevent it from shaking. The outer springs can buffer the impact force when the adjustment plate moves and can also assist the adjustment plate in resetting, reducing vibration during the adjustment process and ensuring the stability of the gap adjustment.
[0008] Preferably, the pin has limiting holes on both sides corresponding to the locking head, and the screw connector has hexagonal grooves on the outer side. The limiting holes of the pin allow the locking head to be precisely engaged, enhancing the locking effect of the pin and preventing loosening. The hexagonal grooves of the screw connector facilitate rotation with tools, reducing the difficulty of operation and improving the convenience and reliability of modular assembly and disassembly of the tool holder.
[0009] Preferably, the inner wall surface of the assembly is provided with a wear-resistant coating, which is made of ceramic matrix composite material and has a thickness of 0.2-0.5 mm. The front surface of the adjustment plate is provided with scale markings, which are evenly distributed along the horizontal movement direction of the adjustment plate. The ceramic matrix wear-resistant coating on the inner wall of the assembly can reduce frictional wear between the adjustment plate and the assembly, extending their service life. The scale markings on the adjustment plate can intuitively display the adjustment position, assisting the operator in accurately controlling the adjustment amount and reducing adjustment errors.
[0010] Preferably, a buffer rubber pad is provided at the hinge of the locking block and the eccentric wheel, the thickness of the buffer rubber pad being 0.5-1 mm, and a rubber soft pad is provided on the inner end surface of the locking head, the thickness of the rubber soft pad being 0.3-0.6 mm. The buffer rubber pad at the hinge of the locking block and the eccentric wheel can reduce the collision wear and noise when the two rotate relative to each other, and the rubber soft pad of the locking head can prevent scratching the pin when locking, while enhancing the locking seal and improving the overall durability of the structure.
[0011] Compared with the prior art, this utility model provides a blade structure with adjustable gap, which has the following advantages: This adjustable-gap blade structure uses a stepper motor to drive the rotation of an eccentric wheel and a locking block, which in turn drives the horizontal movement of the transmission plate and the adjustment plate. This allows for adjustment of the position of the tool holder at the top of the adjustment plate, thus changing the gap between the blade body and the workpiece. This avoids human error and ensures more precise gap adjustment, effectively reducing machining defects caused by inaccurate gap control and guaranteeing consistent machining quality under different working conditions. Furthermore, by inserting a pin at the bottom of the tool holder into the locking sleeve, and then rotating the screw joints on both sides of the locking sleeve to move the locking head, the pin is locked and limited. This facilitates modular disassembly and assembly of the tool holder, allowing operators to quickly disassemble and install the tool holder, significantly reducing downtime for tool changes or maintenance and improving continuous operation efficiency. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the adjusting plate structure of this utility model; Figure 3 This is a schematic diagram of the assembly structure of the pin and snap-fit assembly of this utility model; Figure 4 This is a schematic diagram of the snap-fit sleeve structure of this utility model; Figure 5 This is a schematic diagram of the mounting frame structure of this utility model.
[0013] In the diagram: 1. Mounting platform; 2. Assembly set; 3. Adjusting plate; 4. Transmission plate; 5. Connecting frame; 6. Stepper motor; 7. Eccentric wheel; 8. Locking block; 9. Through slot; 10. Pin; 11. Bearing disc; 12. Tool holder; 13. Snap-fit sleeve; 14. Insertion hole; 15. Rotary joint; 16. Locking head; 17. Limiting hole; 18. Mounting frame; 19. Insert plate; 20. Guide rod; 21. Spring. Detailed Implementation
[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0015] This utility model provides a technical solution: an adjustable blade structure, including a mounting platform 1, a mounting bracket 2, an adjusting plate 3, a transmission plate 4, a connecting frame 5, a stepper motor 6, an eccentric wheel 7, a locking block 8, a through groove 9, a pin 10, a bearing plate 11, a blade holder 12, a snap-fit sleeve 13, a insertion hole 14, a screw connector 15, a locking head 16, a limiting hole 17, a mounting frame 18, an insert plate 19, a guide rod 20, and a spring 21. Please see Figure 1 The top two sides of the mounting platform 1 are connected to the mounting accessories 2. An adjustment plate 3 is inserted inside the mounting accessories 2. A transmission plate 4 is connected to the front side of the adjustment plate 3. Please see Figure 2 A connecting frame 5 is installed on the lower side of the mounting platform 1. A stepper motor 6 is installed on the surface of the connecting frame 5. An eccentric wheel 7 is coaxially connected to the top of the rotor of the stepper motor 6. A locking block 8 is hinged to the outer side of the upper surface of the eccentric wheel 7. The through slot 9 is opened inside the transmission plate 4, and the locking block 8 is inserted inside the through slot 9. The stepper motor 6 drives the eccentric wheel 7 and the locking block 8 to rotate, thereby driving the transmission plate 4 and the adjusting plate 3 to move horizontally. This allows the position of the tool holder 12 on the top of the adjusting plate 3 to be adjusted, so that the gap between the tool body and the workpiece can be changed. This avoids human operation deviation, ensures more precise adjustment of the gap between the tool body and the workpiece, effectively reduces machining defects caused by inaccurate gap control, and ensures the consistency of machining quality under different working conditions. Please see Figure 3 The assembly end of the adjustment plate 3 has an insertion hole 14 inside, and a pin 10 is inserted into the insertion hole 14. The snap-fit sleeve 13 is installed on the lower surface of the adjusting plate 3 at a position corresponding to the pin 10. A bearing disc 11 is mounted on the top of the pin 10, and a tool holder 12 is mounted on the upper surface of the bearing disc 11. Please refer to [link / reference]. Figure 4 Both sides of the inner side of the snap-fit sleeve 13 are screwed with screw heads 15, and the inner end of each screw head 15 is connected to a locking head 16. Please see Figure 1 The back of the accessory 2 is equipped with a mounting frame 18, please refer to [link / reference]. Figure 5 An insert plate 19 is inserted into the middle of the mounting frame 18. The front end of the insert plate 19 is connected to the corresponding position on the back of the adjustment plate 3. Guide rods 20 are connected to both sides of the outer side of the insert plate 19. The outer ends of the guide rods 20 pass through the corresponding positions of the mounting frame 18. A spring 21 is sleeved on the outside of the guide rods 20. The pin 10 at the bottom of the tool holder 12 is inserted into the inside of the snap-fit sleeve 13. The locking head 16 is moved by rotating the screw joints 15 on both sides of the snap-fit sleeve 13, thereby completing the locking and limiting of the pin 10. This facilitates the modular disassembly and assembly of the tool holder 12, allowing operators to quickly disassemble and install the tool holder 12, greatly shortening the downtime for tool replacement or maintenance, and improving the continuous operation efficiency of the equipment. Limiting holes 17 are provided on both sides of the inner side of the pin 10, corresponding to the locking head 16. Hexagonal grooves are provided on the outer side of the screw joint 15. The inner wall surface of the assembly 2 is provided with a wear-resistant coating, which is made of ceramic matrix composite material and has a thickness of 0.2-0.5 mm. The front surface of the adjusting plate 3 is provided with scale markings, which are evenly distributed along the horizontal movement direction of the adjusting plate. A buffer rubber pad is provided at the hinge of the locking block 8 and the eccentric wheel 7, with a thickness of 0.5-1 mm. A rubber soft pad is provided on the inner end surface of the locking head 16, with a thickness of 0.3-0.6 mm.
[0016] This solution uses a stepper motor 6 to drive the rotation of the eccentric wheel 7 and the locking block 8, which in turn drives the horizontal movement of the transmission plate 4 and the adjusting plate 3. This allows for adjustment of the position of the tool holder 12 on top of the adjusting plate 3, thereby changing the gap between the blade body and the workpiece. This avoids human error and ensures more precise gap adjustment, effectively reducing machining defects caused by inaccurate gap control and ensuring consistent machining quality under different working conditions. By inserting the pin 10 at the bottom of the tool holder 12 into the locking sleeve 13, and then rotating the screw joints 15 on both sides of the locking sleeve 13 to drive the movement of the locking head 16, the pin 10 is locked and limited. This facilitates modular disassembly and assembly of the tool holder 12, allowing operators to quickly disassemble and install the tool holder 12, significantly reducing downtime for tool replacement or maintenance and improving the efficiency of continuous operation.
[0017] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0018] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A blade structure with adjustable gap, characterized in that, include: Mounting platform (1), with mounting accessories (2) connected to both sides of the top of the mounting platform (1), and an adjusting plate (3) inserted inside the mounting accessories (2), and a transmission plate (4) connected to the front side of the adjusting plate (3). A connecting frame (5) is installed on the lower side of the mounting platform (1). A stepper motor (6) is installed on the surface of the connecting frame (5). An eccentric wheel (7) is coaxially connected to the top of the rotor of the stepper motor (6). A locking block (8) is hinged to the outer side of the upper surface of the eccentric wheel (7). A through groove (9) is opened inside the transmission plate (4), the locking block (8) is inserted into the through groove (9), and the assembly end of the adjusting plate (3) is provided with a socket (14), and a pin (10) is inserted into the socket (14). A snap-fit sleeve (13) is installed on the lower surface of the adjusting plate (3) at a position corresponding to the pin (10). A bearing plate (11) is installed at the top of the pin (10), and a knife holder (12) is installed on the upper surface of the bearing plate (11). A screw connector (15) is screwed onto both sides of the inside of the snap-fit sleeve (13), and a locking head (16) is connected to the inner end of the screw connector (15).
2. The adjustable blade structure according to claim 1, characterized in that: The back of the assembly (2) is provided with an installation frame (18), and an insert plate (19) is inserted in the middle of the interior of the installation frame (18). The front end of the insert plate (19) is connected to the corresponding position on the back of the adjustment plate (3).
3. The adjustable blade structure according to claim 2, characterized in that: Guide rods (20) are connected to both sides of the outer side of the insert plate (19). The outer ends of the guide rods (20) pass through the corresponding positions of the mounting frame (18). Springs (21) are sleeved on the outside of the guide rods (20).
4. The adjustable blade structure according to claim 1, characterized in that: Limiting holes (17) are provided on both sides of the inner side of the pin (10) corresponding to the locking head (16), and hexagonal grooves are provided on the outer side of the screw connector (15).
5. The adjustable blade structure according to claim 1, characterized in that: The inner wall surface of the assembly (2) is provided with a wear-resistant coating. The wear-resistant coating is made of ceramic matrix composite material and the thickness of the wear-resistant coating is 0.2-0.5 mm. The front surface of the adjustment plate (3) is provided with scale marking lines, which are evenly distributed along the horizontal movement direction of the adjustment plate.
6. The adjustable blade structure according to claim 1, characterized in that: The hinge between the locking block (8) and the eccentric wheel (7) is provided with a buffer rubber pad, the thickness of which is 0.5-1 mm. The inner end surface of the locking head (16) is provided with a rubber pad, the thickness of which is 0.3-0.6 mm.