CN221064578U

CN221064578U - Hard alloy bar for PCB milling cutter

Info

Publication number: CN221064578U
Application number: CN202322679690.5U
Authority: CN
Inventors: 王忠平; 王恺; 董智韬; 李四猛; 刘亚琪; 蔡家礼; 王乃安
Original assignee: Heyuan Fuma Cemented Carbide Co Ltd
Current assignee: Heyuan Fuma Cemented Carbide Co Ltd
Priority date: 2023-10-08
Filing date: 2023-10-08
Publication date: 2024-06-04
Anticipated expiration: 2033-10-08

Abstract

The utility model relates to the technical field of milling cutters and provides a hard alloy bar for a PCB milling cutter, which comprises an alloy bar, wherein a square groove is formed in the bottom of the alloy bar, a square block is inserted into the square groove, milling cutter blades are fixedly connected to the upper side and the lower side of the square block, and clamping grooves are fixedly connected to the two sides of the square block. According to the utility model, the square block is plugged into the square groove, the square block is inserted into the clamping groove, the sleeve in the limiting structure extrudes and limits the extrusion block, so that the square block is fixed, the sleeve moves upwards, the extrusion block contacts and limits the extrusion block, the square block can be detached from the clamping groove by separating the insertion block, the milling blade is converted to process according to different requirements, and the alloy rod can be detached, so that the alloy rod is suitable for various milling blades, the cost is relatively saved, the placing space is saved, and the practicability of the structure is improved.

Description

Hard alloy bar for PCB milling cutter

Technical Field

The utility model relates to the technical field of milling cutters, in particular to a hard alloy bar for a PCB milling cutter.

Background

The PCB milling cutter adopts international famous brand hard alloy bars and tungsten steel bars in the manufacturing process, has high hardness, high wear resistance, high strength, bending resistance and breakage resistance, has long service life, is various in the variety of PCB milling cutters on the market, can often be used for milling cutters of various types, can be used for processing planes, steps, grooves, forming surfaces, cutting off workpieces and the like on a milling machine, is divided into a cutter blade and a cutter handle, and is usually manufactured by the cutter handle through bars and is connected with the workpieces to drive the cutter blade to process.

Through searching Chinese patent numbers: CN210254438U discloses a reverse PCB milling cutter, it includes the handle of a knife, the handle of a knife passes through the toper section and links to each other with the cutter body transition, processing has the left-hand cutting edge on the cutter body, forms left-hand chip groove between the adjacent left-hand cutting edge, and processing has the fish tail that is used for initially boring at the end of the cutter body, a plurality of peripheral cutting edges have evenly been arranged to the front end of the cutter body. The spiral angle direction of the milling cutter is changed from right-handed cutting to left-handed right-handed cutting, so that the cutting force direction of the milling cutter to a workpiece is changed into transverse and longitudinal downward directions, the problem of plate edges can be effectively solved, and the cutting precision and quality of the plate are improved.

However, when implementing the above technical solution, the following problems exist: above technical scheme is effectual solves the limit problem, improves the precision and the quality of panel cutting, but in actual use, when processing different work pieces, can use different milling cutter sword, cast or welded as an organic whole between traditional cutting edge and the handle of a knife, if need a plurality of models, it needs to be connected assorted handle of a knife between with the cutting edge, leads to can using more materials in production process, and because handle of a knife is connected with the cutting edge, when putting, comparatively occupation space.

Disclosure of utility model

The utility model provides a hard alloy bar for a PCB milling cutter, which solves the problems that in the production process of the milling cutter in the related art, the cutting edge is uniformly matched with the cutter handles, so that in the production process, a plurality of cutter handles are needed for cutting edges of different types, the material is wasted, and the cutter handles are connected with the cutter handles, and when the cutter handles are placed, more space is occupied due to overlong whole cutter handles.

The technical scheme of the utility model is as follows: the hard alloy bar for the PCB milling cutter comprises an alloy bar, wherein a square groove is formed in the bottom of the alloy bar, a square block is inserted into the square groove, milling cutter blades are fixedly connected to the upper side and the lower side of the square block, and clamping grooves are fixedly connected to the two sides of the square block;

Two movable grooves are formed in two sides of the alloy rod, an extrusion block is connected to the two movable grooves in a sliding mode, an inserting block is fixedly connected to one side of the extrusion block, one side of the inserting block penetrates through the alloy rod, the inserting block is connected with the clamping groove in a sliding mode, the inserting block is matched with the clamping groove, the clamping groove is clamped with the clamping groove, and a limiting structure is arranged on the outer side wall of the alloy rod.

Preferably, the limiting structure comprises a bottom ring fixedly connected to the outer side wall of the alloy rod, a sleeve slidingly connected to the outer side wall of the alloy rod, a thread line arranged on the outer side wall of the alloy rod, and a fixing ring screwed on the outer side wall of the thread line, wherein the inner wall of the sleeve is contacted with the other side of the extrusion block, and the bottom of the sleeve is contacted with the top of the bottom ring.

Preferably, the top of the sleeve is fixedly connected with an anti-falling pad, and the top of the anti-falling pad is contacted with the bottom of the fixing ring.

Preferably, the other side of the extrusion block is fixedly connected with a buckle plate, and the top of the buckle plate is provided with a stress opening.

Preferably, a sliding groove is formed in one side of the alloy rod, a sliding block is connected in the sliding groove in a sliding mode, and the sliding block is connected with the sleeve.

Preferably, the hollow frame is fixedly connected to the inside of the square groove, and the bottom of the hollow frame is contacted with the top of the square block.

Preferably, a limiting groove is formed in the bottom of the movable groove, a limiting block is connected to the inside of the limiting groove in a sliding mode, and the limiting block is connected with the extrusion block.

Preferably, the outer side wall of the fixing ring is fixedly connected with an anti-slip pad, and the anti-slip pad is adhered to the fixing ring.

The working principle and the beneficial effects of the utility model are as follows:

According to the utility model, the square block is plugged into the square groove, inserted into the clamping groove, and then extruded and limited by the sleeve in the limiting structure, so that the square block is fixed, the sleeve moves upwards, the extruded block is contacted and limited, the clamping groove can be separated from the square block, the milling blade is converted for processing according to different requirements, and the alloy bar can be suitable for various milling blades through detachment, thereby relatively saving cost and space for placing the alloy bar, and further increasing the practicality of the structure.

Drawings

The utility model will be described in further detail with reference to the drawings and the detailed description.

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic cross-sectional elevation view of the present utility model;

FIG. 3 is a schematic perspective view of a square block according to the present utility model;

fig. 4 is an enlarged schematic view of the structure of fig. 2a according to the present utility model.

In the figure: 1. an alloy rod; 2. a square groove; 3. square blocks; 4. milling a blade; 5. a clamping groove; 6. a movable groove; 7. extruding a block; 8. inserting blocks; 9. a limit structure; 901. a bottom ring; 902. a sleeve; 903. a thread line; 904. a fixing ring; 10. an anti-falling pad; 11. a buckle plate; 12. a force receiving port; 13. a sliding groove; 14. a sliding block; 15. a hollow frame; 16. a limit groove; 17. a limiting block; 18. an anti-slip mat.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical scheme of a hard alloy bar for a PCB milling cutter, which comprises: the alloy rod comprises an alloy rod 1, wherein the alloy rod 1 is supported by hard alloy materials, a square groove 2 is formed in the bottom of the alloy rod 1, a space is reserved in the square groove 2 during production, a square block 3 is inserted into the square groove 2, the square block 3 is matched with the square groove 2, milling cutter blades 4 are fixedly connected to the upper side and the lower side of the square block 3, and clamping grooves 5 are fixedly connected to the two sides of the square block 3;

Two movable grooves 6 have been seted up to the both sides of alloy rod 1, and the inside sliding connection of two movable grooves 6 has extrusion piece 7, and one side fixedly connected with inserted block 8 of extrusion piece 7, one side of inserted block 8 runs through to the inside of alloy rod 1, and sliding connection between the two, and phase-match between inserted block 8 and the draw-in groove 5, and phase joint between the two, and the lateral wall of alloy rod 1 is provided with limit structure 9.

Specifically, the limiting structure 9 comprises a bottom ring 901 fixedly connected to the outer side wall of the alloy rod 1, a sleeve 902 slidingly connected to the outer side wall of the alloy rod 1, a thread 903 arranged on the outer side wall of the alloy rod 1, and a fixing ring 904 screwed to the outer side wall of the thread 903, wherein the inner wall of the sleeve 902 is contacted with the other side of the extrusion block 7, and the bottom of the sleeve 902 is contacted with the top of the bottom ring 901;

Through the inside of sleeve 902 and extrusion piece 7 contact, upper fixed ring 904 is spacing down to sleeve 902, and the bottom is contacted with bottom ring 901, and is fixed to sleeve 902, realizes spacing to extrusion piece 7.

Specifically, the top of sleeve 902 is fixedly connected with anti-drop pad 10, and the top of anti-drop pad 10 contacts with the bottom of fixed ring 904, and anti-drop pad 10 increases the area of contact between sleeve 902 and fixed ring 904, reduces the possibility of breaking away from between the two.

Specifically, the other side fixedly connected with buckle 11 of extrusion piece 7, atress mouth 12 has been seted up at the top of buckle 11, through the atress mouth 12 operation in the buckle 11, can be convenient for to the pulling of extrusion piece 7 of pressurization piece, drives the separation between insert 8 and the draw-in groove 5, realizes dismantling.

Specifically, a sliding groove 13 is formed in one side of the alloy rod 1, a sliding block 14 is connected in the sliding groove 13 in a sliding manner, the sliding block 14 is connected with the sleeve 902, and when the sleeve 902 moves, the sliding block 14 slides in the sliding groove 13 to limit the sliding block.

Specifically, the inside fixedly connected with hollow frame 15 of square groove 2, the bottom of hollow frame 15 contacts with the top of square piece 3, and hollow frame 15 is convenient for spacing square piece 3, and after square piece 3 contacted with hollow frame 15, just draw-in groove 5 aligns with inserted block 8.

Specifically, the bottom of the movable groove 6 is provided with a limit groove 16, the inside of the limit groove 16 is slidably connected with a limit block 17, the limit block 17 is connected with the extrusion block 7, and the extrusion block 7 slides in the limit groove 16 to limit through the limit block 17 when moving, and meanwhile, the extrusion block 7 can be prevented from being separated from the movable groove 6.

Specifically, the outer side wall of the fixed ring 904 is fixedly connected with an anti-slip pad 18, the anti-slip pad 18 is adhered to the fixed ring 904, the friction force of the fixed ring 904 is increased by the anti-slip pad 18, and the convenience of operation is improved.

The working principle and the using flow of the utility model are as follows: firstly, an alloy rod 1 is fixed at a corresponding position, a square block 3 is inserted into a square groove 2, the upper part is contacted with a hollow frame 15, then a sleeve 902 extrudes an extrusion block 7, so that the extrusion block 7 pushes a movable insertion block 8 to be inserted into a clamping groove 5, the square block 3 is limited, and a milling cutter blade 4 below is used for processing;

If the milling cutter blade 4 needs to be replaced, the fixing ring 904 can be rotated to move upwards to limit the contact of the sleeve 902, the sleeve 902 is pulled upwards, the stress opening 12 is buckled to enable the extrusion block 7 to drive the insertion block 8 to be separated from the clamping groove 5 to release the limit, the square block 3 can be detached to be replaced, one alloy rod 1 can be used for a plurality of milling cutter blades 4, and when the alloy rod 1 and a plurality of milling cutter blades 4 are placed, the placing space is saved relatively to the welding of the alloy rod 1 and the milling cutter blades 4.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. The hard alloy bar for the PCB milling cutter comprises an alloy bar (1), and is characterized in that a square groove (2) is formed in the bottom of the alloy bar (1), a square block (3) is inserted into the square groove (2), milling cutter blades (4) are fixedly connected to the upper side and the lower side of the square block (3), and clamping grooves (5) are fixedly connected to the two sides of the square block (3);

Two movable grooves (6) are formed in two sides of the alloy rod (1), two extrusion blocks (7) are connected to the inner portions of the movable grooves (6) in a sliding mode, inserting blocks (8) are fixedly connected to one sides of the extrusion blocks (7), one sides of the inserting blocks (8) penetrate through the alloy rod (1) and are connected in a sliding mode, the inserting blocks (8) are matched with the clamping grooves (5) and are connected with the clamping grooves in a clamping mode, and limiting structures (9) are arranged on the outer side walls of the alloy rod (1).

2. The hard alloy bar for the PCB milling cutter according to claim 1, wherein the limiting structure (9) comprises a bottom ring (901) fixedly connected to the outer side wall of the alloy bar (1), a sleeve (902) slidingly connected to the outer side wall of the alloy bar (1), a thread (903) arranged on the outer side wall of the alloy bar (1), and a fixing ring (904) screwed on the outer side wall of the thread (903), the inner wall of the sleeve (902) is contacted with the other side of the extrusion block (7), and the bottom of the sleeve (902) is contacted with the top of the bottom ring (901).

3. The hard alloy bar for a milling cutter for a PCB according to claim 2, wherein a drop-off prevention pad (10) is fixedly connected to the top of the sleeve (902), and the top of the drop-off prevention pad (10) is in contact with the bottom of the fixing ring (904).

4. The hard alloy bar for the PCB milling cutter according to claim 1, wherein a pinch plate (11) is fixedly connected to the other side of the extrusion block (7), and a stress opening (12) is formed in the top of the pinch plate (11).

5. The hard alloy bar for the PCB milling cutter according to claim 2, wherein a sliding groove (13) is formed in one side of the alloy bar (1), a sliding block (14) is slidably connected in the sliding groove (13), and the sliding block (14) is connected with the sleeve (902).

6. The hard alloy bar for the PCB milling cutter according to claim 1, wherein a hollow frame (15) is fixedly connected to the inside of the square groove (2), and the bottom of the hollow frame (15) is contacted with the top of the square block (3).

7. The hard alloy bar for the PCB milling cutter according to claim 1, wherein a limiting groove (16) is formed in the bottom of the movable groove (6), a limiting block (17) is connected to the inside of the limiting groove (16) in a sliding manner, and the limiting block (17) is connected with the extrusion block (7).

8. The hard alloy bar for a milling cutter for a PCB according to claim 2, wherein an anti-slip pad (18) is fixedly connected to the outer side wall of the fixing ring (904), and the anti-slip pad (18) is adhered to the fixing ring (904).