PCB milling cutter fishtail cutting mechanism

Abstract

The utility model relates to the technical field of milling cutter machining, in particular to a PCB milling cutter fishtail cutting mechanism which comprises a shell, a driving assembly and a cutting mechanism are arranged in the shell through a support, and the cutting mechanism comprises a sliding plate and a cutting table. The sliding plate is connected with the driving assembly and detachably connected with the cutting table through the fixing assembly, the cutting table is used for fixing a milling cutter, the fixing assembly can quickly disassemble and assemble the cutting table, and the rotary supporting rod can be matched with the positioning column to position and fix the cutting table. Moreover, the step part can be utilized to give way to the cutting table by rotating again, and the clamping condition of the pressing block is avoided, so that the adaptability of the device to milling cutters with different specifications can be improved by disassembling and assembling the cutting table, and a large amount of time can be saved during equipment maintenance, repair or component replacement, so that the downtime is shortened, and the production efficiency is improved. The milling cutter production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of milling cutter processing, in particular to a fish-tail cutting mechanism for a PCB milling cutter. Background Technique

[0002] The fish-tail processing of a PCB milling cutter is an important process for manufacturing the bottom edge of the PCB milling cutter. This process mainly involves grinding the bottom edge of a rod stock with a left-handed groove or a right-handed groove to form a specific fish-tail shape.

[0003] In order to facilitate milling cutter processing, a fish-tail cutting mechanism for a PCB milling cutter is proposed. For example, the Chinese patent publication number "CN109759651A" in the prior art discloses a cutting mechanism for a PCB milling cutter, including a base, a support column, a panel and a connecting plate. In the middle position on the side of the top of the base, two parallel bottom plates are provided. Slide rails are respectively fixed on the two bottom plates. One end of the base between the two bottom plates is provided with a first fixed seat, and the other end of the base between the two bottom plates is provided with a first motor. The output end of the second motor drives the second lead screw to rotate through a coupling. Since the nut seat on one side of the connecting plate is threadedly connected to the second lead screw, and the clamping block on the side wall of the connecting plate is arranged on the sliding rod, the connecting plate moves horizontally along the sliding rod to complete the cutting of the horizontal part of the part. After the cutting is completed, the output end of the third motor is controlled to rotate in the reverse direction to raise the panel, so that the working head at the bottom of the cutting machine is separated from the surface of the part to complete the cutting work. The device can realize the horizontal cutting of the part and can control the cutting depth, and the operation is convenient.

[0004] In specific operations, the cutting table is used to fix the workpiece and allows the cutting tool to move precisely during the processing. However, different specifications of milling cutters require different cutting tables for fixation, and the cutting table cannot be disassembled and assembled quickly. Then, the cumbersome replacement steps will affect the processing efficiency of the milling cutter, and the practicability is poor. Content of the Utility Model

[0005] The purpose of the utility model is to solve the above-mentioned disadvantages in the prior art that the cutting table cannot be disassembled and assembled quickly, which affects the processing efficiency of the milling cutter, and a fish-tail cutting mechanism for a PCB milling cutter is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] Design a fish-tail cutting mechanism for a PCB milling cutter, including a housing. Inside the housing, a driving component and a cutting mechanism are arranged through a bracket. The cutting mechanism includes a sliding plate and a cutting table. The sliding plate is connected to the driving component and is detachably connected to the cutting table through a fixing component. The cutting table is used to fix the milling cutter.

[0008] Furthermore, the fixing component includes positioning posts. The sliding plate is rectangular in structure, and the positioning posts are fixed at the top corners thereof. There are stepped portions on both sides of the cutting table, and the cutting table is also inserted into the positioning posts through positioning holes. The top of the base has a tubular connecting portion, which is slidably connected to the support rod, and a guiding groove is further formed on its outer periphery. The guiding groove is arc-shaped and extends to form a clamping groove and a relief groove on the upper and lower sides of the end respectively.

[0009] Furthermore, it further includes a base. The sliding plate is provided with a support rod through the base at the stepped portion. A pressing block is provided at the top end of the support rod, and a protruding portion is provided at the bottom end. The pressing block can abut against the stepped portion.

[0010] Furthermore, a tension spring is sleeved on the outer periphery of the support rod, and both ends of the tension spring are fixedly connected to the protruding portion and the side surface of the sliding plate respectively.

[0011] Furthermore, the top of the base has a tubular connecting portion, which is slidably connected to the support rod, and a guiding groove is further formed on its outer periphery. The guiding groove is arc-shaped and extends to form a clamping groove and a relief groove on the upper and lower sides of the end respectively.

[0012] Furthermore, a guiding portion is fixed on the outer periphery of the support rod. The guiding portion is slidably connected to the guiding groove and the relief groove, and is also clamped with the clamping groove.

[0013] A kind of PCB milling cutter fishtail cutting mechanism proposed by the present utility model has the beneficial effects that: through the fixing component, the cutting table can be quickly disassembled and assembled. Rotating the support rod can cooperate with the positioning posts to position and fix the cutting table, and rotating again can use the stepped portion to make way for the cutting table to avoid the situation of the pressing block being stuck. In this way, by disassembling and assembling the cutting table, the adaptability of the device to milling cutters of different specifications can be improved, and a large amount of time can be saved during equipment maintenance, repair or component replacement, thereby reducing the downtime and improving the production efficiency of the milling cutter. The structure is simple, the operation is convenient, and the practicability is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is a schematic structural diagram of the cutting mechanism of the present utility model;

[0016] Figure 3 is a schematic structural diagram of the fixing component of the present utility model;

[0017] Figure 4 is Figure 3 an enlarged structural diagram of area A.

[0018] In the figure: 1, housing; 2, bracket; 3, drive assembly; 4, cutting mechanism; 41, slide plate; 42, cutting table; 421, stepped portion; 5, fixing assembly; 51, positioning post; 52, positioning hole; 53, base; 531, connecting portion; 532, guiding groove; 533, relief groove; 54, support rod; 541, pressing block; 542, protruding portion; 543, tension spring; 55, guiding portion. Detailed implementation manner

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0020] Refer to Figures 1-4 , a PCB milling cutter fishtail cutting mechanism, including a housing 1, a drive assembly 3 and a cutting mechanism 4 are arranged inside the housing 1 through a bracket 2. The cutting mechanism 4 includes a slide plate 41 and a cutting table 42. The slide plate 41 is connected to the drive assembly 3, and is detachably connected to the cutting table 42 through a fixing assembly 5. The cutting table 42 is used to fix the milling cutter.

[0021] It should be added that the drive assembly 3 includes a lead screw driven by a motor to rotate. The lead screw is rotatably connected to the bottom of the bracket 2. The bracket 2 is slidably connected to the slide plate 41, and a slot is provided at the top thereof. The bottom of the slide plate 41 is located in the slot and is threadedly connected to the lead screw through a fixing block for movement;

[0022] Among them, the cutting mechanism 4 further includes a grinding head, a cutting fluid spraying assembly, a grinding wheel grinding assembly, etc.

[0023] Furthermore, the fixing assembly 5 includes a positioning post 51. The slide plate 41 has a rectangular structure, and the positioning post 51 is fixed at the top corner thereof. Stepped portions 421 are provided on both sides of the cutting table 42, and it is also inserted into the positioning post 51 through a positioning hole 52.

[0024] Specifically, the slide plate 41 is limited by the positioning post 51 and the positioning hole 52, and is fixed in cooperation with the pressing block 541.

[0025] Still further, it further includes a base 53. The slide plate 41 is provided with a support rod 54 through the base 53 at the stepped portion 421. The top end of the support rod 54 is provided with a pressing block 541, and a protruding portion 542 is provided at the bottom end. The pressing block 541 can abut against the stepped portion 421.

[0026] In more detail, a tension spring 543 is sleeved on the outer periphery of the support rod 54 , and two ends of the tension spring 543 are fixedly connected to the protrusion 542 and the side surface of the slide plate 41 , respectively.

[0027] In general, the top of the base 53 has a tubular connecting portion 531, which is slidably connected to the support rod 54, and a guide groove 532 is also opened on the periphery. The guide groove 532 is an arc-shaped structure, and extends on the upper and lower sides of the end to form a snap-in groove and a clearance groove 533 respectively.

[0028] Finally, a guide portion 55 is fixed to the periphery of the support rod 54 , and the guide portion 55 is slidably connected to the guide groove 532 and the clearance groove 533 , and is also engaged with the engaging groove.

[0029] In specific operation, the guide groove 532 provides a guiding function for the guide portion 55, so that the support rod 54 fixes the cutting table 42 by rotating and lifting. Therefore, the length of the pressing block 541 is equal to or less than the length of the base 53, and the cutting table 42 is avoided by rotating and using the step portion 421 to avoid being stuck.

[0030] In addition, the yield groove 533 provides a movable space for the guide part 55, so that the guide part 55 is engaged with the engaging groove under the tension of the tension spring 543. The engaging groove is a slightly recessed groove. By fixing the guide part 55, the pressure block 541 is made to contact the step part 421. Of course, a rubber pad is provided on the bottom surface of the pressure block 541.

[0031] In addition, the tension spring 543 is fixed by hooks at both ends, so that the tension spring 543 and the support rod 54 can be easily replaced. The pressing block 541 and the protrusion 542 are both threadedly connected to the support rod 54 .

[0032] Working mode: When working, the cutting table 42 with the milling cutter fixed thereon is placed on the slide 41, and the positioning hole 52 is plugged into the positioning column 51, and the support rod 54 is rotated so that the guide portion 55 moves under the guiding action of the guide groove 532;

[0033] After the support rod 54 is released, the support rod 54 drives the guide part 55 to move upward under the tension of the tension spring 543, so that the guide part 55 is engaged with the engaging groove. In this way, the pressure block 541 contacts the step part 421 and cooperates with the positioning hole 52 and the positioning column 51 to fix it. Similarly, the support rod 54 is pressed again, and the groove 533 gives way to the guide part 55, and the guide part 55 is disengaged from the engaging groove to unlock the support rod 54.

[0034] Finally, the cutting table 42 is driven to move by the driving component 3, and the grinding process is carried out by using the cutting mechanism 4.

[0035] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, making equivalent substitutions or changes, shall be covered by the protection scope of the present utility model.

Claims

1. A fish-tail cutting mechanism for a PCB milling cutter, comprising a housing (1), characterized in that: Inside the housing (1), a driving assembly (3) and a cutting mechanism (4) are provided through a bracket (2). The cutting mechanism (4) includes a sliding plate (41) and a cutting table (42). The sliding plate (41) is connected to the driving assembly (3), and is detachably connected to the cutting table (42) through a fixing assembly (5). The cutting table (42) is used for fixing a milling cutter.

2. The fish-tail cutting mechanism of a PCB milling cutter according to claim 1, characterized in that: The fixing assembly (5) includes positioning posts (51). The sliding plate (41) has a rectangular structure, and the positioning posts (51) are fixed at the top corners thereof. Step portions (421) are provided on both sides of the cutting table (42), and the cutting table (42) is also inserted into the positioning posts (51) through positioning holes (52).

3. A PCB milling cutter fishtail cutting mechanism according to claim 2, characterized in that: It further includes a base (53). The sliding plate (41) is located at the step portion (421) and is provided with a support rod (54) through the base (53). A pressing block (541) is provided at the top end of the support rod (54), and a protrusion (542) is provided at the bottom end. The pressing block (541) can abut against the step portion (421).

4. A PCB milling cutter fishtail cutting mechanism according to claim 3, characterized in that: A tension spring (543) is sleeved on the periphery of the support rod (54). The two ends of the tension spring (543) are respectively fixedly connected to the protrusion (542) and the side surface of the sliding plate (41).

5. A fish-tail cutting mechanism of a PCB milling cutter according to claim 3, characterized in that: The top of the base (53) has a tubular connecting portion (531). The connecting portion (531) is slidably connected to the support rod (54), and a guiding groove (532) is further formed on its periphery. The guiding groove (532) has an arc-shaped structure, and a clamping groove and a relief groove (533) are respectively formed by extending the upper and lower sides at the end.

6. A PCB milling cutter fishtail cutting mechanism according to claim 5, characterized in that: A guiding portion (55) is fixed on the periphery of the support rod (54). The guiding portion (55) is slidably connected to the guiding groove (532) and the relief groove (533), and is also clamped with the clamping groove.

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