Drilling and milling cutter for machining through groove

Abstract

The utility model discloses a drilling and milling cutter for processing a through groove, which particularly relates to the technical field of drilling and milling cutters and comprises a first cutter handle, a second cutter handle is arranged at the top of the first cutter handle, a cutter head is arranged at the bottom of the first cutter handle, a fixing component is arranged between the first cutter handle and the cutter head, and a connecting component is arranged between the first cutter handle and the second cutter handle. The clamping block and the clamping groove are connected and matched with the fixing rod to install the tool bit at the bottom of the first tool handle, the tool bit can be fixed, and the tool bit can be detached conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling and milling cutters, and more specifically, to a drilling and milling cutter for machining through grooves. Background Art

[0002] Drilling and milling cutters are divided into two independent tools: drill bits and milling cutters. Drill bits are tools used to drill through holes or blind holes in solid materials and can expand existing holes; milling cutters are rotary tools with one or more teeth used for milling. In the process of through-groove processing, it is necessary to first position the drill bit on the workpiece, and then use the milling cutter to process the groove body. However, in the existing process of through-groove processing, it is necessary to repeatedly stop the machine to replace the tool, which will reduce the efficiency of through-groove processing.

[0003] The utility model patent with patent publication number CN218855699U discloses a through-groove processing drilling and milling cutter, including a shank and a cutter head integrally arranged at the front of the shank. The advantage of this structure is that it is particularly suitable for processing through-grooves with high-precision requirements. The drilling position is first processed by locating the drill tip groove at the front end of the drilling cutter segment, and the hole position is pre-drilled by rotating the drilling cutter segment. After the hole body is drilled, the cutter head continues to rotate and extend into the hole, and the second PCD blade pre-deepens the hole. As the milling cutter segment goes deeper, the through-groove body is milled by side milling. The drilling and milling process has a long service life and high drilling and milling precision. In addition, when using this drilling and milling cutter, only the drilling cutter segment at the front of the cutter head can be used for drilling processing, that is, it can also be used as a drill bit alone.

[0004] However, in actual use, although this structure can improve the accuracy of through-groove processing, since the tool handle and the tool head are an integrated structure, when the tool head is worn during the through-groove processing and needs to be replaced, the tool head and the tool handle can only be replaced as a whole, which not only increases the replacement cost but also reduces the efficiency of through-groove processing. Utility Model Content

[0005] In order to overcome the problems and defects in the prior art, the utility model provides a drilling and milling cutter for machining through grooves to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a drilling and milling cutter for processing through grooves, comprising a first tool handle, a second tool handle is provided on the top of the first tool handle, a tool head is provided on the bottom of the first tool handle, a fixing component is provided between the first tool handle and the tool head, and a connecting component is provided between the first tool handle and the second tool handle, which is conducive to the convenient disassembly of the tool head and the first tool handle.

[0007] Preferably, the fixing assembly includes a positioning rod arranged on the top of the cutter head, a positioning hole is provided on the surface of the first knife handle, the positioning rod is located inside the positioning hole, a card slot is provided on the surface of the first knife handle and is located outside the positioning hole, a plurality of telescopic rods are provided on the outside of the positioning rod, a card block is provided at one end of the plurality of telescopic rods, the card block is engaged with the card slot, which is conducive to the preliminary fixation of the cutter head and the first knife handle.

[0008] Preferably, the connecting assembly includes a threaded rod arranged at the top of the first handle and the top of the second handle, a threaded hole is provided on the surface of the second handle, the threaded rod at the top of the first handle is threadedly connected to the threaded hole, through holes are provided on the surfaces of the two threaded rods, fixing holes are provided on the surfaces of the first handle and the second handle, the through holes are connected with the fixing holes, a fixing rod is provided on one side of the first handle and the second handle, one end of the two fixing rods passes through the fixing hole and the through hole and extends to one side of the first handle and the second handle respectively, and a baffle is provided on one end of the two fixing rods, which is conducive to fixing the second handle and the first handle.

[0009] Preferably, a plurality of stretching rods are provided on one side of the two baffles and outside the fixing rod, and one end of the stretching rods is respectively connected to the first handle surface and the second handle surface, which is conducive to positioning the fixing rod.

[0010] Preferably, a connecting hole is provided on the surface of the positioning rod, and the connecting hole is through-connected with the fixing hole on the surface of the first handle. The fixing rod on one side of the first handle is located inside the connecting hole, which is conducive to double fixation of the cutter head.

[0011] Preferably, a plurality of the telescopic rods are sleeved with springs, one end of the plurality of the springs are connected to the surface of the positioning rod, and the other end of the plurality of the springs are connected to the surface of the block, which is conducive to resetting the block.

[0012] Technical effects and advantages of the utility model:

[0013] 1. By setting a fixing component, pull the fixing rod on one side of the first handle to separate it from the fixing hole on the surface of the first handle, place the positioning rod inside the positioning hole, move the clamping block into the clamping slot and clamp it, and then pass the fixing rod through the positioning hole and the connecting hole, which can not only fix the cutter head and the first handle, but also facilitate the disassembly of the cutter head and the first handle;

[0014] 2. By setting up a connecting component, the fixing rod is taken out from the inside of the second handle, and the threaded rod on the top of the first handle is placed inside the threaded hole on the surface of the second handle to connect them. Then, the fixing rod is passed through the fixing hole on the surface of the second handle and the through hole on the surface of the threaded rod in sequence, thereby fixing the first handle and the second handle, and extending the length of the first handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 It is a side structural schematic diagram of the utility model.

[0017] Figure 3 It is a schematic diagram of the connection structure between the first knife handle and the second knife handle of the utility model.

[0018] Figure 4 It is a state structure schematic diagram of the utility model.

[0019] Figure 5 For the utility model Figure 4 A partial enlarged schematic diagram in the middle.

[0020] The accompanying drawings are marked as follows: 1. first knife handle; 2. second knife handle; 3. knife head; 4. positioning rod; 5. positioning hole; 6. telescopic rod; 7. clamping block; 8. threaded rod; 9. threaded hole; 10. through hole; 11. fixing rod; 12. baffle; 13. stretching rod; 14. connecting hole; 15. spring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] As attached Figure 1-5 A drilling and milling cutter for machining through grooves shown in the figure comprises a first tool handle 1, a second tool handle 2 is provided on the top of the first tool handle 1, a tool head 3 is provided on the bottom of the first tool handle 1, a fixing component is provided between the first tool handle 1 and the tool head 3, and a connecting component is provided between the first tool handle 1 and the second tool handle 2.

[0023] As attached Figure 1 , 4 As shown in Figure 5, the fixing assembly includes a positioning rod 4 arranged on the top of the cutter head 3, a positioning hole 5 is opened on the surface of the first knife handle 1, the positioning rod 4 is located inside the positioning hole 5, a card slot is opened on the surface of the first knife handle 1 and is located outside the positioning hole 5, a plurality of telescopic rods 6 are arranged on the outside of the positioning rod 4, and a card block 7 is provided at one end of the plurality of telescopic rods 6, and the card block 7 is engaged with the card slot. The positioning rod 4 is placed inside the positioning hole 5 so that the card block 7 is connected with the card slot, and the cutter head 3 and the first knife handle 1 can be preliminarily fixed.

[0024] As attached Figure 1 ,2 As shown in , 3 and 4, the connecting component includes a threaded rod 8 arranged at the top of the first handle 1 and the top of the second handle 2, a threaded hole 9 is opened on the surface of the second handle 2, the threaded rod 8 at the top of the first handle 1 is threadedly connected to the threaded hole 9, through holes 10 are opened on the surfaces of the two threaded rods 8, fixing holes are opened on the surfaces of the first handle 1 and the second handle 2, the through holes 10 are through-connected with the fixing holes, a fixing rod 11 is provided on one side of the first handle 1 and the second handle 2, one end of the two fixing rods 11 passes through the fixing hole and the through hole 10 and extends to one side of the first handle 1 and the second handle 2 respectively, a baffle 12 is provided on one end of the two fixing rods 11, the threaded rod 8 at the top of the first handle 1 is placed inside the threaded hole 9 on the surface of the second handle 2, and then the fixing rod 11 is passed through the fixing hole and the through hole 10 in sequence, so that the first handle 1 and the second handle 2 can be fixed.

[0025] As attached Figure 3 As shown, a plurality of stretching rods 13 are provided on one side of the two baffles 12 and outside the fixed rod 11. One end of the stretching rod 13 is respectively connected to the surface of the first handle 1 and the surface of the second handle 2. Pulling the baffle 12 drives the fixed rod 11 to move to one side, causing the stretching rod 13 to extend and retract.

[0026] As attached Figure 4 As shown, a connecting hole 14 is opened on the surface of the positioning rod 4, and the connecting hole 14 is connected to the fixing hole on the surface of the first handle 1. The fixing rod 11 on one side of the first handle 1 is located inside the connecting hole 14. The fixing hole is connected to the through hole 10 through the fixing rod 11, so that the cutter head 3 and the first handle 1 can be further fixed.

[0027] As attached Figure 5 As shown, multiple telescopic rods 6 are each sleeved with a spring 15, one end of each of the springs 15 is connected to the surface of the positioning rod 4, and the other end of each of the springs 15 is connected to the surface of the clamping block 7. When the clamping block 7 moves to the position of the clamping slot, the elasticity of the spring 15 can generate a rebound force on the telescopic rod 6, so that the telescopic rod 6 pushes the clamping block 7 to move into the clamping slot, and then the clamping block 7 can be clamped with the clamping slot.

[0028] The working principle of the utility model is as follows: when in use, the cutter head 3 is first placed at the bottom of the first knife handle 1, so that the multiple card blocks 7 outside the positioning rod 4 are located inside the card slot on the surface of the first knife handle 1, and the resistance formed by the card slot on the card block 7 causes the telescopic rod 6 and the spring 15 to telescope and push the cutter head 3 upward. Since the card slot is set as a T-shape, when the card block 7 moves to the T-shape of the card slot, the elasticity of the spring 15 drives the telescopic rod 6 to rebound and generate a driving force on the card block 7, so that the card block 7 is connected with the card slot, and then the baffle 12 is pulled. The fixing rod 11 is driven to move, and the fixing rod 11 is passed through the fixing hole on the surface of the first tool handle 1 and the connecting hole 14 on the surface of the positioning rod 4. When the cutter head 3 needs to be disassembled, the fixing rod 11 is driven to move out from the fixing hole by pulling the baffle plate 12, and then the cutter head 3 is pulled. Since the cross section of the clamping block 7 is T-shaped, it can be misaligned with the clamping groove, and then the positioning rod 4 can be taken out from the first tool handle 1, which not only can connect the cutter head 3 with the first tool handle 1, but also facilitates the disassembly of the cutter head 3 and the first tool handle 1;

[0029] When a deeper through groove needs to be processed, the second tool handle 2 is placed on the threaded rod 8 on the top of the first tool handle 1, so that the threaded rod 8 is connected to the threaded hole 9 on the surface of the second tool handle 2, and then the fixing rod 11 on one side of the second tool handle 2 is pulled and passed through the fixing hole on the surface of the second tool handle 2 and the through hole 10 on the surface of the threaded rod 8 in sequence, so that the first tool handle 1 and the second tool handle 2 can be fixed, and the length of the first tool handle 1 can be extended. The utility model connects the cutter head 3 to the first tool handle 1, which is convenient for disassembly, and fixes the first tool handle 1 and the second tool handle 2 to increase the length of the first tool handle 1, which is beneficial for improving the efficiency of through groove processing.

[0030] Finally: The above embodiments are only illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A drilling and milling cutter for machining a through groove, comprising a first tool holder (1), characterized in that: A second knife handle (2) is provided on the top of the first knife handle (1), a knife head (3) is provided on the bottom of the first knife handle (1), a fixing component is provided between the first knife handle (1) and the knife head (3), and a connecting component is provided between the first knife handle (1) and the second knife handle (2).

2. A drilling and milling cutter for machining a through groove according to claim 1, characterized in that: The fixing assembly comprises a positioning rod (4) arranged on the top of the blade head (3); a positioning hole (5) is provided on the surface of the first blade handle (1); the positioning rod (4) is located inside the positioning hole (5); a clamping groove is provided on the surface of the first blade handle (1) and is located outside the positioning hole (5); a plurality of telescopic rods (6) are provided outside the positioning rod (4); a clamping block (7) is provided at one end of each of the plurality of telescopic rods (6); and the clamping block (7) is clamped in the clamping groove.

3. A drilling and milling cutter for machining a through groove according to claim 1, characterized in that: The connection assembly comprises a threaded rod (8) arranged at the top of the first handle (1) and the top of the second handle (2); a threaded hole (9) is provided on the surface of the second handle (2); the threaded rod (8) at the top of the first handle (1) is threadedly connected to the threaded hole (9); a through hole (10) is provided on the surface of the two threaded rods (8); a fixing hole is provided on the surface of the first handle (1) and the second handle (2); the through hole (10) is connected to the fixing hole; a fixing rod (11) is provided on one side of the first handle (1) and the second handle (2); one end of the two fixing rods (11) passes through the fixing hole and the through hole (10) and extends to one side of the first handle (1) and the second handle (2) respectively; and a baffle (12) is provided on one end of the two fixing rods (11).

4. A drilling and milling cutter for machining a through groove according to claim 3, characterized in that: A plurality of stretching rods (13) are provided on one side of the two baffles (12) and outside the fixed rod (11), and one end of the stretching rods (13) is respectively connected to the surface of the first handle (1) and the surface of the second handle (2).

5. The drilling and milling cutter for machining a through groove according to claim 2, characterized in that: A connection hole (14) is provided on the surface of the positioning rod (4), and the connection hole (14) is connected to a fixing hole on the surface of the first knife handle (1), and the fixing rod (11) on one side of the first knife handle (1) is located inside the connection hole (14).

6. A drilling and milling cutter for machining a through groove according to claim 2, characterized in that: A spring (15) is sleeved on each of the plurality of telescopic rods (6), one end of each of the plurality of springs (15) is connected to the surface of the positioning rod (4), and the other end of each of the plurality of springs (15) is connected to the surface of the clamping block (7).

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