Milling cutter with staggered tooth type structure

Abstract

The utility model provides a staggered tooth type structure milling cutter, and relates to the technical field of milling cutters. The milling cutter is used for solving the technical problems that the whole cutter needs to be replaced after an existing milling cutter is abraded, and more manufacturing materials and funds need to be consumed. A staggered-tooth type structure milling cutter comprises a cutter head, a cutter bar, a gasket and fixing bolts, a plurality of cutting grooves are formed in the cutter head, the cutter bar and the cutter head are jointly provided with the fixing bolts in a threaded mode, the gasket is arranged between the cutter bar and the cutter head, and the fixing bolts penetrate through the gasket. The tool bit can be replaced by screwing down the fixing bolt from the tool bit and the tool bar, the tool bit does not need to be replaced together with the tool bar, the fixing bolt sequentially penetrates through the tool bar, the gasket and the tool bit, a new tool bit can be fixed to the tool bar, and the effect that only the tool bit is replaced is achieved.

Description

Technical Field

[0001] The utility model provides a staggered-tooth structure milling cutter, which relates to the technical field of milling cutters. Background Art

[0002] A milling cutter is a rotary tool with one or more teeth used for milling. When working, each tooth cuts off the excess of the workpiece intermittently in sequence. Milling cutters are mainly used to process planes, steps, grooves, forming surfaces and cut off workpieces on milling machines.

[0003] Existing milling cutters are prone to wear after long-term use. If they are not replaced in time, the workpiece may be defective or the processing accuracy may be insufficient. Therefore, the milling cutter needs to be replaced frequently. However, frequent replacement of the milling cutter requires more manufacturing materials and funds, which will cause more waste.

[0004] Therefore, it is necessary to provide a staggered tooth structure milling cutter in which only the cutter head can be replaced. Utility Model Content

[0005] In order to overcome the disadvantages of the existing milling cutter that the entire tool needs to be replaced after being worn, which consumes a lot of manufacturing materials and funds, the utility model provides a staggered tooth structure milling cutter in which only the cutter head can be replaced.

[0006] In order to achieve the above-mentioned purpose, the embodiment of the utility model provides the following technical solutions: a staggered tooth structure milling cutter, including a cutter head with multiple cutting grooves, a cutter rod, a gasket and a fixing bolt, the cutter rod and the cutter head are threadedly provided with multiple fixing bolts, a gasket is arranged between the cutter rod and the cutter head, and the fixing bolt passes through the gasket.

[0007] As a further preferred solution, it also includes two connecting rods slidably arranged on the knife rod, a wedge block is fixedly connected to the connecting rod, an elastic member is wound around the connecting rod, the mounting seat can be installed on the driving device, a mounting cylinder is installed on the mounting seat, a clamping block is fixed in the mounting cylinder, and the elastic member pushes the wedge block to clamp with the clamping block.

[0008] As a further preferred solution, it also includes a mounting guide sleeve sleeved on the knife rod, and a dust cover is threadedly provided on the mounting guide sleeve, and the dust cover covers the mounting tube.

[0009] As a further preferred solution, it also includes a plurality of ventilation channels opened in the cutter head, an exhaust nozzle is installed in one ventilation channel, and wind hoods are installed in the remaining ventilation channels.

[0010] As a further preferred solution, a protrusion is fixedly connected to the lower part of the knife rod.

[0011] As a further preferred solution, two exhaust holes are provided at the lower part of the knife rod, and dustproof nets are embedded in the exhaust holes.

[0012] Compared with the prior art, the milling cutter provided by the embodiment of the utility model has the following advantages: 1. The cutter head can be replaced by unscrewing the fixing bolts from the cutter head and the cutter rod, without having to connect the cutter rod for replacement. By sequentially passing the fixing bolts through the cutter rod, gasket and cutter head, a new cutter head can be fixed on the cutter rod, thereby achieving the effect of only replacing the cutter head.

[0013] 2. Slide the tool rod into the installation tube, push the wedge block and the connecting rod to slide toward each other through the elastic member, so that the wedge blocks on both sides are engaged with the clamping blocks, and fix the tool rod in the installation tube, so as to facilitate the installation and connection of the milling cutter and the drive device.

[0014] 3. By threading the dust cover onto the mounting guide sleeve, the dust cover covers the connection between the tool rod and the mounting tube, thereby achieving the effect of dustproofing the connection between the tool rod and the mounting tube.

[0015] 4. The air flow formed when the cutter head rotates can be sucked into the ventilation channel through the wind hood, and the heat on the cutter head is absorbed by the incoming cold air flow, and the air flow and heat are discharged outward through the exhaust nozzle to achieve the effect of dissipating heat for the cutter head. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0017] Figure 2 It is a three-dimensional cross-sectional structural schematic diagram of the tool rod, gasket and fixing bolt of the utility model.

[0018] Figure 3 The utility model is a three-dimensional cross-sectional structural schematic diagram of the installation guide sleeve, dust cover and dust net.

[0019] Figure 4 It is a three-dimensional cross-sectional structural schematic diagram of the clamping block, the mounting seat and the mounting tube of the utility model.

[0020] Figure 5 For this utility model Figure 4 Enlarged view of point A in the middle.

[0021] Figure 6 It is a three-dimensional cross-sectional structural schematic diagram of the tool rod, dust cover and mounting tube of the utility model.

[0022] Among them: 1-cutter head, 101-cutting groove, 2-cutter rod, 201-bump, 3-gasket, 4-fixing bolt, 5-block, 6-mounting seat, 601-mounting cylinder, 7-wedge block, 8-elastic member, 9-connecting rod, 10-mounting guide sleeve, 11-dust cover, 12-wind hood, 1201-ventilation channel, 13-exhaust nozzle, 14-exhaust hole, 1401-dust net. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with specific embodiments. It should also be noted that, unless otherwise clearly specified and limited, terms such as: setting, installing, connecting, and connecting should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Embodiment 1: A staggered tooth structure milling cutter, see Figure 1 and Figure 2 As shown, it includes a cutter head 1, on which a plurality of cutting grooves 101 are opened, and also includes a tool rod 2, a gasket 3 and a fixing bolt 4. The tool rod 2 and the tool head 1 are circumferentially threaded with a plurality of fixing bolts 4. A gasket 3 for reducing friction is arranged between the tool rod 2 and the tool head 1, and the fixing bolt 4 passes through the gasket 3.

[0025] When the milling cutter is in use, the workpiece can be processed through the cutting groove 101 of the cutter head 1. When the cutter head 1 is worn and needs to be replaced, the cutter head 1 can be replaced by unscrewing the fixing bolt 4 from the cutter head 1 and the tool rod 2. There is no need to connect the tool rod 2 for replacement. Then, the fixing bolt 4 is passed through the tool rod 2, the gasket 3 and the cutter head 1 in sequence to fix the new cutter head 1 on the tool rod 2. The gasket 3 can avoid direct friction between the cutter head 1 and the tool rod 2, thereby reducing the wear between the cutter head 1 and the tool rod 2.

[0026] Example 2: Based on Example 1, refer to Figure 4 and Figure 5 As shown, it also includes two symmetrical connecting rods 9 that are slidably arranged on the knife rod 2. The connecting rod 9 slides horizontally along the knife rod 2. One end of the connecting rod 9 located in the knife rod 2 is fixedly connected with a wedge block 7 by welding. An elastic member 8 is wound around the connecting rod 9. The mounting seat 6 can be installed on the driving device. A mounting cylinder 601 is installed on the mounting seat 6 by welding. A clamping block 5 is fixed in the mounting cylinder 601 by welding. The elastic member 8 pushes the wedge block 7 to clamp with the clamping block 5.

[0027] When the milling cutter needs to be fixed on the driving device, the tool rod 2 is slidably inserted into the mounting tube 601. At this time, the clamping block 5 pushes the wedge blocks 7 on both sides, and the wedge blocks 7 drive the connecting rod 9 to slide to the side away from each other, so that the elastic member 8 is compressed and deformed. After the wedge block 7 passes over the clamping block 5, the elastic member 8 pushes the wedge block 7 and the connecting rod 9 to reset, and the wedge blocks 7 on both sides are clamped with the clamping block 5 to fix the tool rod 2 in the mounting tube 601. When the driving device drives the mounting seat 6 to rotate, the tool rod 2 rotates synchronously with the mounting tube 601 and the clamping block 5 on the mounting seat 6.

[0028] See also Figure 3 As shown, it also includes a mounting guide sleeve 10 which is sleeved on the lower part of the knife rod 2 by welding. A dust cover 11 is threadedly provided on the mounting guide sleeve 10, and the dust cover 11 covers the mounting tube 601.

[0029] When processing the workpiece, some cutting chips and dust will be raised. By threading the dust cover 11 onto the mounting guide sleeve 10, the dust cover 11 covers the connection between the tool rod 2 and the mounting cylinder 601, thereby preventing chips and dust from entering the connection between the tool rod 2 and the mounting cylinder 601.

[0030] See also Figure 2 As shown, it also includes four ventilation channels 1201 opened in the cutter head 1, an exhaust nozzle 13 is embedded in one of the ventilation channels 1201, and wind caps 12 are embedded in the other ventilation channels 1201.

[0031] When the cutter head 1 processes the workpiece, the cutter head 1 will generate a large amount of heat, which may easily cause the cutter head 1 to be more easily deformed and damaged. At this time, the air flow formed when the cutter head 1 rotates can be sucked into the ventilation channel 1201 through the wind hood 12, and the heat on the cutter head 1 is absorbed by the incoming cold air flow, and the air flow and heat are discharged outwardly through the exhaust nozzle 13.

[0032] See also Figure 4 and Figure 6 As shown, a protrusion 201 is fixedly connected to the lower part of the knife rod 2 by welding; two symmetrical exhaust holes 14 are opened at the lower part of the knife rod 2, and a dustproof net 1401 is embedded in the exhaust hole 14.

[0033] The protrusion 201 prevents the knife rod 2 from rotating in the installation tube 601, and at the same time, the rotation of the installation tube 601 can drive the knife rod 2 to rotate synchronously; when the knife rod 2 is inserted into the clamping block 5, the air in the knife rod 2 is discharged to the outside through the exhaust hole 14 to prevent the knife rod 2 from being difficult to insert into the clamping block 5. The dustproof net 1401 can prevent dust and other foreign matter from entering the knife rod 2 through the exhaust hole 14.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A staggered tooth structure milling cutter, comprising a cutter head (1), the cutter head (1) being provided with a plurality of cutting grooves (101), characterized in that: It also includes a knife bar (2), a gasket (3) and a fixing bolt (4); a plurality of fixing bolts (4) are threadedly arranged on the knife bar (2) and the knife head (1); a gasket (3) is arranged between the knife bar (2) and the knife head (1); and the fixing bolt (4) passes through the gasket (3).

2. A staggered tooth structure milling cutter according to claim 1, characterized in that: The invention also comprises two connecting rods (9) slidably arranged on the knife rod (2), a wedge block (7) being fixedly connected to the connecting rod (9), an elastic member (8) being wound around the connecting rod (9), a mounting seat (6) being mountable on the driving device, a mounting cylinder (601) being mounted on the mounting seat (6), a clamping block (5) being fixedly connected in the mounting cylinder (601), and the elastic member (8) pushing the wedge block (7) to clamp with the clamping block (5).

3. A staggered tooth structure milling cutter according to claim 2, characterized in that: It also includes a mounting guide sleeve (10) sleeved on the knife rod (2), a dust cover (11) being threadedly provided on the mounting guide sleeve (10), and the dust cover (11) covers the mounting cylinder (601).

4. A staggered tooth structure milling cutter according to claim 1, characterized in that: It also includes a plurality of ventilation channels (1201) provided in the cutter head (1), an exhaust nozzle (13) being installed in one ventilation channel (1201), and wind caps (12) being installed in the remaining ventilation channels (1201).

5. The staggered tooth structure milling cutter according to claim 1, characterized in that: A protrusion (201) is fixedly connected to the lower part of the knife rod (2).

6. A staggered tooth structure milling cutter according to claim 1, characterized in that: Two exhaust holes (14) are provided at the lower part of the knife rod (2), and a dustproof net (1401) is embedded in the exhaust hole (14).

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