CN220427064U - Split type internal thread cutter - Google Patents

Abstract

The utility model discloses a split type internal thread cutter, which comprises a cutter handle, wherein the bottom end of the cutter handle is fixedly connected with a connecting block, the bottom end of the connecting block is fixedly connected with a cutter bar, one side of the cutter bar is provided with a cutter placing groove, the inside of the cutter placing groove is contacted with the outer wall of a cutter blade, one side of the cutter blade is provided with a rotating device, the outside of the rotating device is provided with a fixing device, a workpiece can be fixed through the fixing device, the technical field of internal thread milling cutters is related, when a cylindrical workpiece is fixed, a connecting rod is screwed out of a short block firstly, then a threaded rod is rotated and pushes a retaining plate to be contacted with the surfaces of two sides of the cylindrical workpiece, at the moment, the retaining plate can rotate through an internal hinge and a rotating shaft and is sunken towards the direction of the rectangular block, so that the retaining plate forms an included angle, and the two sides of the cylindrical workpiece can be fixed through the short block and the connecting rod.

Description

Split type internal thread cutter

Technical Field

The utility model relates to the technical field of internal thread milling cutters, in particular to a split internal thread cutter.

Background

The utility model provides a split type internal thread milling cutter has been published to current application number CN201720471882.9, relates to internal thread milling cutter technical field, including the cutter arbor, the upper end welding of cutter arbor has the handle of a knife, the both sides lower part symmetry welding of cutter arbor has operation tool bit pole, and operation tool bit pole is parallel to each other with the cutter arbor, the outside of operation tool bit pole is equipped with a plurality of milling teeth from last equidistance to lower in proper order, balanced sleeve has been cup jointed on the cutter arbor, balanced telescopic top is equipped with circular opening, and first connecting rod and second connecting rod mutually perpendicular, and second connecting rod and balanced sleeve are parallel to each other, the side of second connecting rod is equipped with the screw hole, threaded connection has the threaded rod in the screw hole, the threaded rod runs through the second connecting rod, the side of balanced sleeve is equipped with the first recess that sets up on the horizontal direction and the second recess that sets up on the vertical direction, and bonds first spirit level in the first recess, bond has the second spirit level in the second recess.

The utility model has novel structure, ingenious design and novel structure, and is suitable for popularization.

The prior art has the following defects: the split type internal thread milling cutter is novel in structure, ingenious in design and novel in structure and is suitable for popularization, but the pressing plate in the internal thread milling cutter is arranged to be a plane, so that a workpiece with a relatively flat surface can be fixed, but when a cylindrical workpiece is fixed, the contact area between the pressing plate and the cylindrical workpiece is small, so that during machining, the internal thread of the workpiece can be inclined, and the machining position of the workpiece is changed.

Therefore, it is necessary to invent a split type internal thread cutter.

Disclosure of Invention

The utility model aims to provide a split type internal thread cutter, which solves the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a split type internal thread cutter, includes the handle of a knife, the bottom fixedly connected with connecting block of handle of a knife, the bottom fixedly connected with cutter arbor of connecting block, put the sword groove has been seted up to one side of cutter arbor, put the inside in sword groove and the blade outer wall contact, one side of blade is provided with rotating device, rotating device's outside is provided with fixing device, can fix the work piece through fixing device.

In a preferred embodiment of the utility model, the side of the blade away from the cutter bar is provided with cutting teeth, and the blade and the cutter placing groove are fixed through bolts.

In a preferred embodiment of the utility model, the rotating means comprises: the threaded rod, one side of connecting block near the blade fixedly connected with fixed frame, the threaded rod screw thread is installed in the both sides of fixed frame.

In a preferred embodiment of the present utility model, the fixing device comprises: and the two opposite surfaces of the threaded rod are respectively connected with rectangular blocks in a rotating manner, one side, far away from the threaded rod, of each rectangular block is respectively fixedly connected with a supporting block, and the number of the supporting blocks is eight.

In a preferred embodiment of the utility model, a concave block is fixedly connected to one side, far away from the rectangular block, of each of the eight supporting blocks, a rotating shaft is rotatably connected to the inner portion of each of the eight concave blocks, and a convex block is fixedly connected to the surface of each of the eight rotating shafts and positioned in each of the concave blocks.

In a preferred embodiment of the utility model, two of the retaining plates are fixedly mounted on the convex block, two ends of the two retaining plates are fixedly connected with the short blocks, eight of the short blocks are fixedly connected with the opposite faces of the eight short blocks through connecting rods.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

The beneficial effects are that:

through improving in current technique, be provided with the short piece through the both sides at the butt board and fix through the connecting rod, make the butt board can fix smooth work piece, when fixed cylindrical work piece, screw out the connecting rod in the short piece earlier, then rotate the threaded rod and promote butt board and cylindrical work piece both sides surface contact, the butt board will rotate through inside hinge and pivot and to the direction of rectangular block sunken this moment, make the butt board form an contained angle, and fix cylindrical work piece's both sides, can effectually make the butt board can be sunken and form the contained angle to fix when fixed cylindrical work piece through setting up short piece and connecting rod, the problem that the internal thread can incline and make the processing position to the work piece change when fixed cylindrical work piece has been solved.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 is a schematic structural view of a split type internal thread cutter.

Fig. 2 is a schematic side view of a split internal thread cutter.

Fig. 3 is a schematic structural view of a blade in a split internal thread cutter.

Fig. 4 is a schematic structural view of a rotating device in a split type internal thread cutter.

Fig. 5 is a schematic structural view of a fixing device in a split type internal thread cutter.

In the figure: the cutter comprises a cutter handle 1, a connecting block 2, a cutter bar 3, a cutter placing groove 4, a cutter blade 5, cutting teeth 6, bolts 7, a fixed frame 8, a threaded rod 9, a rectangular block 10, a supporting block 11, a concave block 12, a rotating shaft 13, a convex block 14, a retaining plate 15, a short block 16 and a connecting rod 17.

Detailed Description

The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.

Referring to fig. 1-5, the utility model provides a split internal thread cutter, and in order to achieve the above purpose, the utility model provides the following technical scheme: the utility model provides a split type internal thread cutter, includes handle of a knife 1, the bottom fixedly connected with connecting block 2 of handle of a knife 1, is provided with strip type spirit level (not marked in the drawing) at the surface of connecting block 2, and the model of strip type spirit level is: ST200-0.02, guarantee through the strip spirit level that the cutter keeps parallel with the work piece, the bottom fixedly connected with cutter arbor 3 of connecting block 2, tool steel or high carbon steel material, tool steel has higher hardness and can keep high hardness and red hardness under high temperature, with high wearability and suitable toughness, put the sword groove 4 has been seted up to one side of cutter arbor 3, put the sword groove 4 and set up in the bottom of fixed frame 8, put the both ends of sword groove 4 still to be provided with the chip groove (not annotate in the figure), can discharge the piece when processing through the chip groove, put the inside of sword groove 4 and blade 5 outer wall contact, blade 5 is carbide material, carbide has hardness height, wear resistance, intensity and toughness are better, heat resistance, a series of excellent properties such as corrosion resistance, especially its high hardness and wearability remain unchanged basically even under 500 ℃, still very high hardness at 1000 ℃, the sword groove 6 has been seted up to one side that blade 5 kept away from 3, fix through bolt 7 between blade 5 and the sword groove 4, when need dismantle blade 5 change, need the blade 5 to change blade 5, it can be fixed to install the device through the inside that rotates the device that the inside of blade 5 just need to change 5 to the blade 5, the device is put blade 5 to rotate, the device is put the device to the outside to be provided with the blade 5.

The rotating device comprises: the threaded rod 9, one side fixedly connected with fixed frame 8 that connecting block 2 is close to blade 5, threaded rod 9 screw thread installs in the both sides of fixed frame 8, one side of threaded rod 9 is provided with the commentaries on classics piece (not annotate in the figure), through rotating the commentaries on classics piece for threaded rod 9 can rotate and promote fixing device to remove towards opposite face, thereby fix the both sides of work piece, thereby let cutter arbor 3 and cylindrical work piece keep vertical state, the space is left to the both sides of fixed frame 8 and cutter arbor 3, make the air can be through each position and blade 5 contact, can reduce the temperature effectively and prolong this split type internal thread milling cutter's life in the course of working.

The fixing device includes: the two rectangular blocks 10 can be pushed to move through the threaded rods 9, the supporting blocks 11 are fixedly connected to one sides of the two rectangular blocks 10 far away from the threaded rods 9, the supporting blocks 11 are respectively arranged at four corners of the two rectangular blocks 10, eight supporting blocks 11 are respectively fixedly connected with the concave blocks 12 at one sides of the eight supporting blocks 11 far away from the rectangular blocks 10, the rotating shafts 13 are respectively and rotatably connected to the inner parts of the eight concave blocks 12, the rotating shafts 13 can rotate through the concave blocks 12, the surfaces of the eight rotating shafts 13 are respectively and fixedly connected with the convex blocks 14 which are positioned in the concave blocks 12, the convex blocks 14 can rotate through the rotating shafts 13, the two supporting blocks 15 are fixedly arranged on the convex blocks 14, hinges (not marked in the drawing) are arranged in the middle of the supporting blocks 15, the two ends of the two supporting blocks 15 are fixedly connected with the short blocks 16, eight short blocks 16 are arranged, the opposite surfaces of the eight short blocks 16 are fixed through connecting rods 17, the connecting rods 17 are in threaded connection with the short blocks 16, the abutting plates 15 are fixed through the connecting rods 17 and the short blocks 16, so that the abutting plates 15 cannot rotate through hinges, the two rectangular blocks 10 are pushed to move towards the opposite surfaces while the threaded rods 9 rotate, two sides of a workpiece are fixed, when a cylindrical workpiece is fixed, the connecting rods 17 are screwed out from between the two short blocks 16, then the abutting plates 15 are driven to move by pushing the rectangular blocks 10, when the abutting plates 15 on the two sides are in contact with the surface of the cylindrical workpiece, the abutting plates 15 rotate through hinges and rotate inside the concave blocks 12 through the convex blocks 14 and the rotating shafts 13, so that the abutting plates 15 are inwards recessed towards the rectangular blocks 10, and an included angle is formed, the cylindrical workpiece is fixed through the two offset plates 15 forming an included angle, and then the cutter and the cylindrical workpiece are ensured to be parallel through the strip level, so that the internal thread of the cylindrical workpiece is always not inclined, and the cutter bar 3 and the cylindrical workpiece are kept in a vertical state.

The working principle of the utility model is as follows: when the cutter is used, a workpiece is placed between two retaining plates 15, then the rotating block is rotated, so that the threaded rod 9 can rotate and push the two rectangular blocks 10 to move towards opposite surfaces, two sides of the workpiece are fixed, when a cylindrical workpiece is fixed, the connecting rod 17 is screwed out from between the two short blocks 16, then the rectangular blocks 10 are pushed to drive the retaining plates 15 to move, when the retaining plates 15 on two sides are in contact with the surface of the cylindrical workpiece, the retaining plates 15 rotate through the hinge and rotate in the concave block 12 through the convex block 14 and the rotating shaft 13, the retaining plates 15 are recessed inwards towards the direction of the rectangular blocks 10, an included angle is formed, the cylindrical workpiece is fixed through the two retaining plates 15 forming the included angle, then the cutter is ensured to be parallel to the cylindrical workpiece through the bar-type level gauge, the internal threads of the cylindrical workpiece are not inclined all the time, so that the cutter bar 3 is kept in a vertical state with the cylindrical workpiece, when the cutter bar 5 is required to be dismounted and replaced, the cutter bar 5 can be replaced from the inside the cutter groove 4, and the cutter bar 5 can be removed from the cutter groove 4.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (6)

1. The utility model provides a split type internal thread cutter, includes handle of a knife (1), the bottom fixedly connected with connecting block (2) of handle of a knife (1), the bottom fixedly connected with cutter arbor (3) of connecting block (2), put sword groove (4) have been seted up to one side of cutter arbor (3), put the inside in sword groove (4) and blade (5) outer wall and contact, its characterized in that, one side of blade (5) is provided with rotating device, rotating device's outside is provided with fixing device, can fix the work piece through fixing device.

2. The split internal thread cutter according to claim 1, wherein the cutting teeth (6) are arranged on one side of the blade (5) far away from the cutter bar (3), and the blade (5) and the cutter placing groove (4) are fixed through bolts (7).

3. A split internal thread tool as claimed in claim 2, wherein the rotation means comprises: the threaded rod (9), one side of connecting block (2) near blade (5) fixedly connected with fixed frame (8), threaded rod (9) screw thread installation is in the both sides of fixed frame (8).

4. A split internal thread tool as claimed in claim 3, wherein the securing means comprises: and the two opposite surfaces of the threaded rod (9) are respectively and rotatably connected with rectangular blocks (10), one sides, far away from the threaded rod (9), of the rectangular blocks (10) are respectively and fixedly connected with support blocks (11), and eight support blocks (11) are arranged.

5. The split type internal thread cutter as claimed in claim 4, wherein one side of the eight supporting blocks (11) far away from the rectangular block (10) is fixedly connected with a concave block (12), the inside of the eight concave blocks (12) is rotatably connected with a rotating shaft (13), and the surface of the eight rotating shafts (13) is fixedly connected with a convex block (14) which is positioned in the inside of the concave block (12).

6. The split type internal thread cutter as claimed in claim 5, wherein the retaining plates (15) are fixedly mounted on the convex blocks (14), two retaining plates (15) are fixedly connected with short blocks (16) at two ends of each retaining plate (15), eight short blocks (16) are arranged, and eight opposite faces of each short block (16) are fixed through connecting rods (17).