Machine clamping type ultrathin hard alloy milling cutter

Abstract

The utility model belongs to the technical field of milling cutters, and particularly relates to a mechanically-clamped ultrathin hard alloy milling cutter which comprises a cutter handle and a cutter head, an inserting groove is formed in the bottom of the cutter handle, and a rack matched with the inserting groove is fixed to the top of the cutter head. According to the machine clamping type ultrathin hard alloy milling cutter, the cutter handle, the cutter head, the inserting groove, the rack, the key groove, the fastening bolt, the toothed plate, the clamping plate, the clamping hole and the clamping assembly are arranged, and in the using process of the machine clamping type ultrathin hard alloy milling cutter, the cutter handle and the cutter head are connected and fixed in a clamping mode through cooperation of the rack and the toothed plate; after the fastening bolt is loosened to adjust the moving distance of the clamping plate, the tool bit can extend out of the interior of the tool handle to be adjusted, so that a deep hole needed by a workpiece can be conveniently milled, and under the cooperation of the clamping plate and the clamping assembly, the clamping plate can play a limiting role in the fastening bolt for fixing the stable connection of the tool handle and the tool bit; therefore, the fastening bolt can be prevented from loosening due to vibration in the machining process.

Description

TECHNICAL FIELD

[0001] The utility model relates to milling cutter technical field, concretely is a machine clamping type super thin hard alloy milling cutter. BACKGROUND

[0002] Milling cutter is a rotary cutter with one or more teeth for milling, each tooth cuts off the excess of the workpiece intermittently in turn during work, and is mainly used for processing plane, step, groove, shaped surface and cutting off workpiece on milling machine, while hard alloy milling cutter refers to the milling cutter made of hard alloy, but the length of the shank of the current hard alloy milling cutter is mostly fixed, the length of the shank cannot be adjusted according to the milling requirement, thereby it is inconvenient to mill deep hole, therefore the machine clamping type super thin hard alloy milling cutter is provided to solve the above problems. SUMMARY

[0003] (I) technical problem solved

[0004] In view of the defects of the prior art, the utility model provides a machine clamping type super thin hard alloy milling cutter, which solves the problems in the above background art.

[0005] (II) technical scheme

[0006] The utility model discloses a machine clamping type super thin hard alloy milling cutter, which solves the problems in the above background art.

[0007] A machine clamping type super thin hard alloy milling cutter, which comprises a shank and a tool bit, a slot is formed in the bottom of the shank, a rack that is matched with the slot is fixed on the top of the tool bit, the rack is inserted into the slot, a key groove is formed in the surface of the shank, two threaded holes are formed in the key groove, a fastening bolt is screwed into each threaded hole, one end of each fastening bolt extends into the slot and is rotatably connected to a gear plate that is matched with the rack through a bearing, the gear plate is engaged with the rack, two clamping plates for limiting the fastening bolts are placed in the key groove, each clamping plate is clamped on the surface of a corresponding fastening bolt, a clamping hole is formed in each clamping plate, and a clamping assembly for clamping the clamping holes is arranged in the key groove.

[0008] Further, the clamping assembly comprises a support plate fixed in the key groove, two strip-shaped grooves are formed in the side wall of the support plate, two moving blocks are slidably connected between the two strip-shaped grooves, a clamping rod that is matched with the clamping hole is fixed on the surface of each moving block, each clamping rod is clamped in a corresponding clamping hole, two springs are fixed on the support plate, the other end of each spring is fixedly connected to a corresponding moving block, and two pushing blocks are slidably connected to the surface of the support plate, each pushing block is fixedly connected to a corresponding moving block.

[0009] Further, two telescopic protective covers are fixed between the two moving blocks, and the two telescopic protective covers are located inside the corresponding strip-shaped grooves.

[0010] Further, the surfaces of the two pushing blocks are fixed with anti-skid protrusions at equal distances.

[0011] Further, the surface of the shank is provided with guide grooves in a ring array, and the top end of the cutter head is fixed with guide rods matched with the guide grooves in a ring array.

[0012] Further, the surface of the cutter head is provided with chip removal grooves in a spiral.

[0013] (Three) beneficial effects

[0014] Compared with the prior art, the utility model provides a machine clamp type ultra -thin hard alloy milling cutter has the following beneficial effects:

[0015] The utility model discloses a shank, cutter head, slot, rack, keyway, fastening bolt, toothed plate, clamping plate, clamping hole and clamping assembly are set up, during using this machine clamp type ultra -thin hard alloy milling cutter, utilize the cooperation of rack and toothed plate, make the shank and the cutter head adopt the clamping mode and connect fixed, after loosening the fastening bolt and adjusting the moving distance of clamping plate, can the cutter head is from the inside of shank and stretches out and adjusts, thereby facilitate the milling machining operation of the deep hole of the workpiece required, and under the cooperation of clamping plate and clamping assembly, make clamping plate can to the fastening bolt of fixed shank and cutter head connection stable and play the limiting action, thereby can avoid the loosening of fastening bolt because of vibration in the processing. DETAILED DESCRIPTION

[0016] Figure 1 It is the whole structure schematic diagram of the utility model;

[0017] Figure 2 It is the shank structure schematic diagram of the utility model;

[0018] Figure 3 It is the cutter head structure schematic diagram of the utility model;

[0019] Figure 4 It is the clamping plate structure schematic diagram of the utility model;

[0020] Figure 5 It is the support plate structure schematic diagram of the utility model;

[0021] Figure 6 It is the pushing block structure schematic diagram of the utility model.

[0022] In the figure: 1, handle; 2, head; 3, slot; 4, rack; 5, keyway; 6, fastening bolt; 7, toothed plate; 8, clamping plate; 9, clamping hole; 10, clamping assembly; 1001, support plate; 1002, strip-shaped slot; 1003, moving block; 1004, clamping rod; 1005, spring; 1006, pushing block; 1007, telescopic protective cover; 1008, anti-skid convex strip; 11, guide slot; 12, guide rod; 13, chip removal groove. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] EMBODIMENT

[0025] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , one embodiment of the utility model provides a machine clamp type ultra-thin hard alloy milling cutter, which comprises a handle 1 and a head 2, the bottom of the handle 1 is provided with a slot 3, the top of the head 2 is fixedly provided with a rack 4 matched with the slot 3, the rack 4 is inserted into the inside of the slot 3, the surface of the handle 1 is provided with a keyway 5, two threaded holes provided on the keyway 5 are threadedly connected with fastening bolts 6, one end of the two fastening bolts 6 extends into the inside of the slot 3 and is rotatably connected with a toothed plate 7 matched with the rack 4 through a bearing, the toothed plate 7 is engagedly connected with the rack 4, two clamping plates 8 for limiting the fastening bolts 6 are placed in the inside of the keyway 5, the clamping plates 8 are clamped on the surfaces of the corresponding fastening bolts 6 respectively, clamping holes 9 are provided on the clamping plates 8, a clamping assembly 10 for clamping the clamping holes 9 is arranged in the inside of the keyway 5, during use of the machine clamp type ultra-thin hard alloy milling cutter, when the length of the head 2 needs to be adjusted, the clamping plates 8 can be quickly released from the limitation by operating the clamping assembly 10, after the clamping plates 8 are taken out from the inside of the keyway 5, the two fastening bolts 6 can be loosened at this time, the fastening bolts 6 are moved after being loosened, the limitation of the rack 4 is released after the toothed plate 7 is moved, then the head 2 can be adjusted by being moved downward and sliding, after the length adjustment is completed, the two fastening bolts 6 can be rotated again to engage the toothed plate 7 with the rack 4, then the clamping plates 8 can be placed in the inside of the keyway 5 again to limit the fastening bolts 6, at this time, the adjusted head 2 can be limited and fixed.

[0026] As shown in Figure 1 , Figure 5 andFigure 6 As shown in some embodiments, the card assembly 10 includes a support plate 1001 fixed inside the key groove 5, the side wall of the support plate 1001 is provided with two strip-shaped grooves 1002, two moving blocks 1003 are slidably connected between the two strip-shaped grooves 1002, two telescopic protective covers 1007 are fixed between the two moving blocks 1003, the two telescopic protective covers 1007 are respectively located inside the corresponding strip-shaped grooves 1002, which can further protect the spring 1005 fixed on the support plate 1001, the surface of the moving block 1003 is fixed with a clamping rod 1004 matched with the clamping hole 9, the clamping rod 1004 is clamped in the corresponding clamping hole 9, two springs 1005 are fixed on the support plate 1001, the other end of the spring 1005 is fixedly connected with the corresponding moving block 1003, two push blocks 1006 are slidably connected on the surface of the support plate 1001, anti-skid protrusions 1008 are equidistantly fixed on the surface of the two push blocks 1006, the anti-skid protrusions 1008 can increase the friction between the hands and the surface of the push block 1006, thereby achieving the effect of anti-skid when the push block 1006 is moved, the push block 1006 is fixedly connected with the corresponding moving block 1003, when the card plate 8 needs to be taken out from the inside of the key groove 5, the operator can move the push block 1006, the push block 1006 moves to drive the moving block 1003 to move, the spring 1005 is in a compressed state after the moving block 1003 moves, and the clamping rod 1004 slides out of the clamping hole 9 when the moving block 1003 moves, at this time, the card plate 8 can be taken out from the inside of the key groove 5, during installation, the above operation is repeated, after the card plate 8 is placed into the key groove 5 again, the push block 1006 is loosened, and then one end of the clamping rod 1004 is inserted into the clamping hole 9 again under the resetting force of the compressed spring 1005, at this time, the card plate 8 can be fixed in the key groove 5, and during the taking and placing of the card plate 8 from the inside of the key groove 5, the operator can choose to separate or simultaneously remove.

[0027] As shown in some embodiments, Figure 2 and Figure 3 As shown in some embodiments, the surface of the handle 1 is provided with a ring-shaped array of guide grooves 11, and the top end of the head 2 is fixed with a ring-shaped array of guide rods 12 matched with the guide grooves 11, so that after the handle 1 and the head 2 are inserted and fixed, the stability of the connection between the two can be further enhanced.

[0028] As shown in some embodiments, Figure 1 As shown in some embodiments, the surface of the head 2 is provided with a spiral-shaped array of chip removal grooves 13, and the number of the chip removal grooves 13 provided on the surface of the head 2 is four, so that the generated waste chips can be cleaned in time during milling.

[0029] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application have been described in detail, for the skilled in the art, it still can be modified, or for the equivalent replacement of part of the technical features of the technical solutions recorded in the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, shall be included within the scope of the present application.

Claims

1. A machine clamped ultra-thin carbide milling cutter comprising a shank (1) and a head (2), characterized in that: The bottom of the tool holder (1) is provided with a slot (3), the top of the tool bit (2) is fixed with a rack (4) matched with the slot (3), the rack (4) is inserted into the slot (3), the surface of the tool holder (1) is provided with a keyway (5), two threaded holes are formed in the keyway (5), and the two threaded holes are threadedly connected with fastening bolts (6), one end of the two fastening bolts (6) extends into the slot (3) and is rotatably connected with a tooth plate (7) matched with the rack (4) through a bearing, the tooth plate (7) is engaged with the rack (4), the keyway (5) is provided with two clamping plates (8) for limiting the fastening bolts (6), the clamping plates (8) are clamped on the surfaces of the corresponding fastening bolts (6) respectively, and the clamping plates (8) are provided with clamping holes (9), and the keyway (5) is provided with a clamping assembly (10) for clamping the clamping holes (9).

2. The machine clamped ultra-thin carbide milling cutter according to claim 1, characterized in that: The clamping assembly (10) comprises a supporting plate (1001) fixed in the keyway (5), two strip-shaped grooves (1002) are formed in the side wall of the supporting plate (1001), two moving blocks (1003) are slidably connected between the two strip-shaped grooves (1002), clamping rods (1004) matched with the clamping holes (9) are fixed on the surfaces of the moving blocks (1003), the clamping rods (1004) are clamped in the corresponding clamping holes (9) respectively, two springs (1005) are fixed on the supporting plate (1001), the other ends of the springs (1005) are fixedly connected with the corresponding moving blocks (1003) respectively, and two pushing blocks (1006) are slidably connected to the surface of the supporting plate (1001). The pushing blocks (1006) are fixedly connected with the corresponding moving blocks (1003) respectively.

3. The machine clamped ultra-thin carbide milling cutter according to claim 2, characterized in that: Two telescopic protective covers (1007) are fixed between the two moving blocks (1003), and the two telescopic protective covers (1007) are located in the corresponding strip-shaped grooves (1002) respectively.

4. The machine clamped ultra-thin carbide milling cutter according to claim 2, characterized in that: The surfaces of the two pushing blocks (1006) are fixed with anti-skid protrusions (1008) at equal intervals.

5. The machine clamped ultra-thin carbide milling cutter according to claim 1, characterized in that: The surface of the tool holder (1) is provided with guide grooves (11) in a ring array, and the top end of the tool bit (2) is fixed with guide rods (12) matched with the guide grooves (11) in a ring array.

6. The machine clamped ultra-thin carbide milling cutter according to claim 1, characterized in that: The surface of the tool bit (2) is provided with a spiral-shaped chip groove (13).

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