A linear spring rounded corner cutting tool

Abstract

This utility model relates to the field of counterweight technology and discloses a linear spring rounded corner cutter. It solves the problem that current linear spring rounded corner cutters lack a stable buffer structure, and prolonged use is prone to tool deformation due to impact, shortening their service life. The cutter includes a tool shank, with a cutter head connected to its upper end. A cooling assembly is connected to the outer side of the tool shank, and a tool holder is connected to its lower end. A pressure plate is connected to the lower end of the tool shank extending into the tool holder. This utility model, through the setting of the buffer assembly, combines the elastic force of the spring, the damping force of the damping rod, the friction force of the friction plate and friction groove, and the attraction force of the magnetic block and magnetic plate to form a comprehensive buffer resistance opposite to the downward movement direction of the tool shank. This counteracts the rigid impact force when the tool shank contacts the workpiece, effectively preventing cracks and chipping of the tool shank and cutter head due to rigid contact, thus extending the tool's service life.

Description

Technical Field

[0001] This utility model belongs to the field of counterweight technology, specifically a linear spring rounded corner cutting tool. Background Technology

[0002] As a core elastic component in mechanical equipment, the quality of the rounded corners at the ends of linear springs directly affects assembly safety and equipment operational stability. Currently, most linear spring rounding tools on the market adopt a rigid "tool shank + cutter head" structure design. During machining, a large rigid impact is generated at the moment the tool contacts the spring workpiece. This impact is directly transmitted to the tool shank, which can easily cause micro-deformation of the tool shank. Long-term use can lead to tool shank bending and cutter head chipping, affecting the tool's service life. Furthermore, such linear spring rounding tools lack a stable buffer structure, and with prolonged use, the impact can easily cause tool shank deformation, shortening its service life. Utility Model Content

[0003] In view of the above situation and to overcome the defects of the prior art, this utility model provides a linear spring rounding cutter, which effectively solves the problem that the current linear spring rounding cutter lacks a stable buffer structure, and that after long-term use, impact can easily cause the cutter bar to deform and shorten its service life.

[0004] This utility model provides the following technical solution: a linear spring rounded corner cutter, including a cutter bar, a cutter head connected to the upper end of the cutter bar, a cooling assembly connected to the outer side of the cutter bar, a cutter holder connected to the lower end of the cutter bar, a pressure plate connected to the lower end of the cutter bar extending through to the inside of the cutter holder, a buffer assembly connected to the lower end of the pressure plate, the buffer assembly including a first toothed plate installed on both sides of the lower end of the pressure plate, a limit rod connected to both sides of the lower end of the first toothed plate, the lower end of the limit rod connected to the bottom end of the inside of the cutter holder, and the other end of the limit rod extending through to the inside of the first toothed plate connected to a limit plate; The bottom of the tool holder is connected to a mounting base. Support plates are symmetrically connected to both sides of the upper part of the mounting base. A gear is connected between the two opposing support plates. The gear meshes with the first toothed plate. A sliding plate is slidably connected to the inner side of the mounting base.

[0005] Optionally, damping rods are connected to both sides of the lower end of the slide plate. The lower end of the damping rod is connected to the bottom of the mounting base. A spring is sleeved on the outside of the damping rod. One end of the spring is connected to the bottom of the mounting base, and the other end of the spring is connected to one side of the slide plate.

[0006] Optionally, a second toothed plate is connected to both sides of the upper end of the slide plate. The second toothed plate is meshed with a gear. A friction plate is connected to one end of the second toothed plate. One end of the friction plate is slidably connected to one end of the mounting base. A friction groove is provided on the mounting base at the slidable connection point of the friction plate.

[0007] Optionally, a magnetic block is embedded at one end of the friction plate, and a magnetic suction plate is connected to one side of the inside of the friction groove.

[0008] Optionally, the cooling assembly includes a cooling seat mounted on the outside of the tool holder, the output end of the cooling seat is connected to a conveying pipe, a fixing plate is connected to the outside of the conveying pipe, and one end of the fixing plate is connected to the outside of the tool holder.

[0009] Optionally, one end of the delivery pipe is connected to a separation pipe, one end of the separation pipe is connected to the outside of the cutter head, and one end of the separation pipe is connected to a nozzle.

[0010] Optionally, a sealing ring is connected to the upper end of the tool holder, and the sealing ring is slidably sleeved on the outside of the tool holder.

[0011] In summary, this application includes at least one of the following beneficial technical effects: This invention utilizes a buffer assembly to combine the elastic force of the spring, the damping force of the damping rod, the friction force between the friction plate and the friction groove, and the attraction force between the magnetic block and the magnetic plate. This creates a comprehensive buffer resistance that is opposite to the downward movement direction of the tool holder, thus counteracting the rigid impact force when the tool holder contacts the workpiece. This effectively prevents damage such as cracks and chipping of the tool holder and tool head caused by rigid contact, and extends the tool's service life. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a linear spring rounded corner cutting tool; Figure 2 This is a schematic diagram of the installation structure of the pressure plate; Figure 3 This is a schematic diagram of the buffer component; Figure 4 This is a schematic diagram of the connection structure of the limiting plate; Figure 5 This is a schematic diagram of the installation structure of the friction plate; Figure 6 This is a schematic diagram of the connection structure of the magnetic blocks; Figure 7 This is a schematic diagram of the cooling component.

[0013] In the diagram: 1. Tool holder; 2. Tool head; 3. Cooling assembly; 31. Cooling base; 32. Conveying pipe; 33. Fixing plate; 34. Separation pipe; 35. Nozzle; 4. Tool holder; 5. Pressure plate; 6. Buffer assembly; 61. First toothed plate; 62. Limiting rod; 63. Limiting plate; 64. Mounting base; 66. Slide plate; 67. Damping rod; 68. Spring; 69. Second toothed plate; 610. Friction plate; 611. Friction groove; 612. Magnetic block; 613. Magnetic suction plate; 614. Support plate; 615. Gear; 7. Sealing ring. Detailed Implementation

[0014] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0015] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0016] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0017] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example

[0019] like Figure 1 and Figure 2 As shown, the present invention proposes a linear spring rounded corner cutter, including a cutter bar 1, a cutter head 2 connected to the upper end of the cutter bar 1, a cooling assembly 3 connected to the outer side of the cutter bar 1, a cutter holder 4 connected to the lower end of the cutter bar 1, and a pressure plate 5 connected to the lower end of the cutter bar 1 extending through to the inside of the cutter holder 4. The cutter bar 1 moves downward, causing the pressure plate 5 to move, which in turn causes the first toothed plates 61 on both sides of the lower end of the pressure plate 5 to move. A sealing ring 7 is connected to the upper end of the cutter holder 4, and the sealing ring 7 is slidably sleeved on the outside of the cutter bar 1. The sealing ring 7 seals the connection between the cutter holder 4 and the cutter bar 1 to prevent foreign matter from entering the gap between the cutter bar 1 and the cutter holder 4. A buffer assembly 6 is connected to the lower end of the pressure plate 5.

[0020] like Figure 3 As shown, the buffer assembly 6 includes a first toothed plate 61 installed on both sides of the lower end of the pressure plate 5. Limiting rods 62 are connected to both sides of the lower end of the first toothed plate 61. The first toothed plate 61 slides along the outside of the limiting rods 62, which can strictly limit the movement trajectory of the first toothed plate 61 and prevent it from deviating and causing transmission jamming. The lower end of the limiting rod 62 is connected to the bottom of the inside of the tool holder 4. The other end of the limiting rod 62 extends through to the inside of the first toothed plate 61 and is connected to a limiting plate 63. The limiting plate 63 prevents the limiting rod 62 from disengaging from the first toothed plate 61.

[0021] The bottom of the tool holder 4 is connected to a mounting base 64. Support plates 614 are symmetrically connected to both sides of the upper part of the mounting base 64. The support plates 614 are used to mount the gear 615. The gear 615 is connected between the two opposing support plates 614 and meshes with the first toothed plate 61. A sliding plate 66 is slidably connected to the inner side of the mounting base 64. Damping rods 67 are connected to both sides of the lower end of the sliding plate 66. The damping rods 67 and springs 68 are stretched under the action of the sliding plate 66, generating resistance and slowing down the movement of the tool holder 1, thereby buffering the speed. The lower end of the damping rod 67 is connected to the bottom of the mounting base 64. A spring 68 is sleeved on the outside of the damping rod 67. One end of the spring 68 is connected to the bottom of the mounting base 64, and the other end of the spring 68 is connected to one side of the sliding plate 66.

[0022] like Figure 5 As shown, the upper ends of the slide plate 66 are connected to the two sides of the second toothed plate 69. The second toothed plate 69 is meshed with the gear 615. One end of the second toothed plate 69 is connected to the friction plate 610. The friction plate 610 and the friction groove 611 are arranged in an inverted trapezoidal structure, which is wider at the top and narrower at the bottom, rather than rectangular. One end of the friction plate 610 is slidably connected to one end of the mounting base 64.

[0023] like Figure 6 As shown, the mounting base 64 has a friction groove 611 at the sliding connection of the friction plate 610. A magnetic block 612 is embedded at one end of the friction plate 610. A magnetic suction plate 613 is connected to one side of the friction groove 611. When the friction plate 610 moves along the friction groove 611, the magnetic block 612 at one end of the friction plate 610 and the magnetic suction plate 613 on the inside of the friction groove 611 gradually approach each other, and a magnetic attraction force is generated between them. This resistance directly acts on the direction of movement of the friction plate 610, hindering the rapid movement of the friction plate 610 and achieving a buffering and deceleration effect.

[0024] like Figure 7The cooling assembly 3 includes a cooling seat 31 installed outside the tool holder 1. The cooling seat 31 is filled with coolant. The output end of the cooling seat 31 is connected to a delivery pipe 32, which delivers the coolant to the inside of a separator pipe 34. A fixing plate 33 is connected to one side of the delivery pipe 32. One end of the fixing plate 33 is connected to one side of the tool holder 1. One end of the delivery pipe 32 is connected to the separator pipe 34, which delivers the liquid evenly to a nozzle 35. One end of the separator pipe 34 is connected to the outside of the tool head 2, and the other end of the separator pipe 34 is connected to a nozzle 35. The nozzle 35 sprays coolant to cool the tool head 2 and prevent overheating during processing.

[0025] The implementation principle of the linear spring rounded corner cutter in this application embodiment is as follows: During use, when the cutter head 2 contacts the linear spring workpiece and generates cutting force, this force is transmitted to the cutter bar 1, causing the cutter bar 1 to move along one side of the axial direction. The cutter bar 1 causes the pressure plate 5 to move to one side. At the same time, under the limitation of the limiting rod, the pressure plate 5 causes the first toothed plate 61 to move in a straight line. Because the first toothed plate 61 meshes with the gear 615 between the support plates 614 on both sides of the upper part of the mounting base 64, the downward movement of the first toothed plate 61 will drive the gear 615 to rotate around the axis between the support plates 614. Also, because the gear 615 meshes with the second toothed plates 69 on both sides of the upper end of the slide plate 66, the rotation of the gear 615 will be converted into The upward linear movement of the second toothed plate 69 causes it to move synchronously. The second toothed plate 69 pulls the slide plate 66 and the friction plate 610 to move. The damping rod 67 and the spring 68 are stretched under force, generating resistance and providing initial buffering. The contact between the friction plate 610 and the inner wall of the friction groove 611 generates sliding friction. As the friction plate 610 moves, the magnetic block 612 at one end of the friction plate 610 gradually approaches the magnetic suction plate 613 inside the friction groove 611. The magnetic attraction between the two increases as the relative distance decreases, forming a secondary buffering force to counteract the rigid impact force when the tool holder 1 contacts the workpiece, achieving smooth deceleration of the tool holder 1 and preventing damage to the tool holder 1 due to rigid contact.

[0026] The above specific embodiments are merely optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A linear spring rounding tool comprising a tool bar (1), characterized in that: The upper end of the tool holder (1) is connected to the tool head (2), the outer side of the tool holder (1) is connected to the cooling assembly (3), the lower end of the tool holder (1) is connected to the tool holder (4), the lower end of the tool holder (1) extends through to the inside of the tool holder (4) and is connected to the pressure plate (5), the lower end of the pressure plate (5) is connected to the buffer assembly (6), the buffer assembly (6) includes a first toothed plate (61) installed on both sides of the lower end of the pressure plate (5), the lower ends of the first toothed plate (61) are connected to the limit rods (62), the lower ends of the limit rods (62) are connected to the bottom end of the inside of the tool holder (4), and the other end of the limit rods (62) extends through to the inside of the first toothed plate (61) and is connected to the limit plate (63). The tool holder (4) is connected to a mounting base (64) at its bottom. Support plates (614) are symmetrically connected to both sides of the upper part of the mounting base (64). A gear (615) is connected between the two opposing support plates (614). The gear (615) meshes with the first toothed plate (61). A sliding plate (66) is slidably connected to the inner side of the mounting base (64).

2. A linear spring rounding tool according to claim 1, characterized in that: Damping rods (67) are connected to both sides of the lower end of the slide plate (66). The lower end of the damping rod (67) is connected to the bottom inside of the mounting base (64). A spring (68) is sleeved on the outside of the damping rod (67). One end of the spring (68) is connected to the bottom inside of the mounting base (64), and the other end of the spring (68) is connected to one side of the slide plate (66).

3. A linear spring rounding tool according to claim 1, characterized in that: The upper end of the slide plate (66) is connected to two sides of a second toothed plate (69). The second toothed plate (69) is meshed with a gear (615). One end of the second toothed plate (69) is connected to a friction plate (610). One end of the friction plate (610) is slidably connected to one end of the mounting base (64). The mounting base (64) is provided with a friction groove (611) at the sliding connection point of the friction plate (610).

4. A linear spring rounding tool according to claim 3, wherein: A magnetic block (612) is embedded at one end of the friction plate (610), and a magnetic suction plate (613) is connected to one side of the inside of the friction groove (611).

5. A linear spring rounding tool according to claim 1, wherein: The cooling assembly (3) includes a cooling seat (31) installed outside the tool holder (1), the output end of the cooling seat (31) is connected to a conveying pipe (32), a fixing plate (33) is connected to the outside side of the conveying pipe (32), and one end of the fixing plate (33) is connected to the outside side of the tool holder (1).

6. A linear spring rounding tool according to claim 5, wherein: One end of the delivery pipe (32) is connected to a separation pipe (34), one end of the separation pipe (34) is connected to the outside of the cutter head (2), and one end of the separation pipe (34) is connected to a nozzle (35).

7. A linear spring rounding tool according to claim 1, wherein: The upper end of the tool holder (4) is connected to a sealing ring (7), which is slidably sleeved on the outside of the tool holder (1).

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