Knurling cutter

Abstract

The utility model discloses a knurling tool, and relates to the technical field of knurling machining. The device comprises a cutter bar, an adjusting table, two fixed seats and a knurl wheel, a fixed side plate is arranged on the adjusting table, and a sliding shaft is arranged on the adjusting table; two sliding holes are formed in the fixed side plate, and bolt holes communicated with the sliding holes are formed in the fixed seat; a hexagonal flange bolt fixes the sliding shaft through the sliding hole and the bolt hole; a part is located between the two knurl wheels and is bidirectionally and symmetrically extruded and cut by the two knurl wheels. The position of the fixed seat is adjusted by adjusting the sliding shaft, so that the machining requirements of parts with different sizes are met; the distance between the two fixing seats is adjusted through the sliding shaft, adjustment of the distance between the two knurling wheels is achieved, under the condition that the outer diameters of parts are consistent, the consistency of the outer diameters after knurling is excellent, the production efficiency is improved, and the knurling machining cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of knurling processing, and more specifically, it is a knurling tool. Background Art

[0002] The knurling processing method is an extrusion cutting method. The equipment used is a special thread rolling machine or an ordinary lathe, and the tools used are special thread rolling wheels and general knurling wheels; the thread rolling machine is used for mass production processing, and the ordinary lathe is used for single-piece and small-batch production processing.

[0003] The special thread rolling machine requires special thread rolling wheels for production processing, and the tool cost is high; the processing quality of the ordinary lathe is poor in stability, the product is easy to be distorted and deformed, and the dimensional accuracy cannot be controlled.

[0004] Therefore, it is necessary to develop a knurling tool that improves the stability and efficiency of small-batch knurling products. Content of the Utility Model

[0005] The purpose of the utility model is to overcome the deficiencies of the above background art and provide a knurling tool.

[0006] In order to achieve the above purpose, the technical solution of the utility model is: a knurling tool, characterized in that: it includes a tool shank, an adjustment table located at the top of the tool shank, two fixed seats symmetrically arranged on the adjustment table, and knurling wheels installed on each fixed seat;

[0007] A fixed side plate is arranged on the adjustment table, and a sliding shaft is arranged on the adjustment table. One fixed seat is slidably connected to one end of the sliding shaft, and the other fixed seat is slidably connected to the other end of the sliding shaft; two sliding holes are opened on the fixed side plate, and bolt holes communicating with the sliding holes are opened on the fixed seat; the sliding shaft is fixed by a hexagon flange bolt passing through the sliding holes and the bolt holes;

[0008] The part is located between the two knurling wheels and is bilaterally symmetrically extruded and cut by the two knurling wheels.

[0009] In the above technical solution, a first V-shaped groove is arranged on the fixed side plate, a second V-shaped groove is arranged on the fixed seat, and the first V-shaped groove matches the second V-shaped groove.

[0010] In the above technical solution, an installation groove is opened at the top of the fixed seat, a core shaft hole passing through the installation groove is opened on the fixed seat, the core shaft is installed in the core shaft hole, and the knurling wheel is fixed in the installation groove through the core shaft.

[0011] In the above technical solution, a screw hole communicating with the core shaft hole is opened on the fixed seat, and the core shaft is fixed by an internal hexagon flat-end set screw passing through the screw hole.

[0012] In the above technical solution, a sliding shaft hole is formed in the fixed seat, the sliding shaft hole communicates with the bolt hole, and the sliding shaft is located in the sliding shaft hole.

[0013] In the above technical solution, a positioning groove is formed at the top of the adjusting table, a positioning wheel is arranged in the middle of the sliding shaft, and the positioning wheel is located in the positioning groove.

[0014] Compared with the prior art, the present utility model has the following advantages:

[0015] 1) In the present utility model, the position of the fixed seat is adjusted by adjusting the sliding shaft, so as to meet the processing requirements of different part sizes; the distance between the two fixed seats is adjusted by the sliding shaft, so as to adjust the distance between the two knurling wheels. When the outer diameter sizes of the parts are the same, the outer diameter sizes after knurling are excellent in consistency, the production efficiency is improved, and the cost of knurling processing is reduced.

[0016] 2) During processing, the two knurling wheels of the present utility model are always perpendicular to the part axis, so that the radial force on the part is basically zero, the force on the part is reduced, the part will not be deformed, broken or cracked, and the part quality is improved.

[0017] 3) The tool structure of the present utility model is simple, the on-site operation is convenient, the process method has high flexibility, and the production cost is low.

[0018] 4) The present utility model solves the problems of product stability and processing efficiency in the process of small-batch knurling processing; solves the problem of tool applicability, is suitable for processing by a variety of equipment, and at the same time, due to the simple operation of the tool, solves the problem of uneven knurling in the knurling processing of repair parts.

[0019] 5) The existing processing method is single-direction force extrusion cutting, while the cutting method of the present utility model is two-way symmetric force cutting, which improves the production efficiency and part quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a structural schematic diagram of the present utility model.

[0021] Figure 2 is a front view of the present utility model.

[0022] Figure 3 is a side view of the present utility model.

[0023] Figure 4 is a structural schematic diagram of the fixed seat.

[0024] Figure 5 is a front view of the tool bar and the adjusting table.

[0025] Among them, 1 - tool shank, 2 - adjusting table, 21 - fixed side plate, 211 - sliding hole, 212 - first V-shaped groove, 22 - sliding shaft, 221 - positioning wheel, 23 - positioning groove, 3 - fixed seat, 31 - bolt hole, 32 - second V-shaped groove, 33 - mounting groove, 34 - mandrel hole, 35 - mandrel, 36 - screw hole, 37 - sliding shaft hole, 4 - knurling wheel, 51 - hexagon flange bolt, 52 - hexagon socket flat end set screw, 6 - part. Detailed implementation mode

[0026] The following will describe in detail the implementation of the present invention in conjunction with the accompanying drawings. However, they do not constitute a limitation to the present invention and are only for illustration purposes. At the same time, the advantages of the present invention will become clearer and easier to understand through the description.

[0027] Referring to the accompanying drawings, it can be seen that a knurling tool is characterized in that it includes a tool shank 1, an adjusting table 2 located at the top of the tool shank 1, two fixed seats 3 symmetrically arranged on the adjusting table 2, and a knurling wheel 4 installed on each fixed seat 3;

[0028] A fixed side plate 21 is provided on the adjusting table 2, and a sliding shaft 22 is provided on the adjusting table 2. One fixed seat 3 is slidably connected to one end of the sliding shaft 22, and the other fixed seat 3 is slidably connected to the other end of the sliding shaft 22; two sliding holes 211 are opened on the fixed side plate 21, and a bolt hole 31 communicating with the sliding holes 211 is opened on the fixed seat 3; the hexagon flange bolt 51 fixes the sliding shaft 22 through the sliding holes 211 and the bolt hole 31;

[0029] The part 6 is located between the two knurling wheels 4 and is bilaterally symmetrically squeezed and cut by the two knurling wheels 4.

[0030] A first V-shaped groove 212 is provided on the fixed side plate 21, a second V-shaped groove 32 is provided on the fixed seat 3, and the first V-shaped groove 212 matches the second V-shaped groove 32; the first V-shaped groove 212 meshes with the second V-shaped groove 32, increasing the connection stability between the fixed seat 3 and the adjusting table 2; a step is provided on the fixed seat 3, one side of the step is placed on the top of the fixed side plate 21, and the other side is provided with the first V-shaped groove 212.

[0031] A mounting groove 33 is opened at the top of the fixed seat 3, a mandrel hole 34 passing through the mounting groove 33 is opened on the fixed seat 3, a mandrel 35 is installed in the mandrel hole 34, and the knurling wheel 4 is fixed in the mounting groove 33 through the mandrel 35.

[0032] The fixed seat 3 is provided with a screw hole 36 communicating with the mandrel hole 34, and the hexagon socket flat end set screw 52 fixes the mandrel 35 through the screw hole 36.

[0033] The fixed seat 3 is provided with a sliding shaft hole 37 which communicates with the bolt hole 31, and the sliding shaft 22 is located in the sliding shaft hole 37.

[0034] The top of the adjusting table 2 is provided with a positioning groove 23, and a positioning wheel 221 is arranged in the middle of the sliding shaft 22, and the positioning wheel 221 is located in the positioning groove 23.

[0035] In actual use, the knurling processing diameter range of the present utility model is between 0 and 10 mm; the present utility model is applicable to the following equipment for processing: ordinary lathe C616 and below, instrument lathe, sliding headstock lathe, small CNC lathe.

[0036] The using method of the present utility model includes the following steps:

[0037] Step 1: Fix the knurling wheels 4 on the two fixed seats 3 through the mandrel 35, and then fix the mandrel 35 with the hexagon socket flat end set screw 52.

[0038] Step 2: According to the diameter of the part 6 to be processed, adjust the distance between the two fixed seats 3 through the sliding shaft 22 to realize the adjustment of the distance between the knurling wheels 4; after adjustment, fix the fixed seat 3 with the hexagon flange bolt 51 to ensure that the distance between the knurling wheels 4 does not change during processing.

[0039] Step 3: Install the tool bar 1 on the machine tool tool rest and adjust the center height of the tool. When the tool feeds on the machine tool, make the two knurling wheels 4 contact the part 6 at the same time and feed to the axis of the part 6, and then perform an axial feed movement; complete the knurling processing.

[0040] During processing, the two knurling wheels 4 are always perpendicular to the axis of the part 6, so that the radial force on the part 6 is basically zero, reducing the force on the part 6, preventing the part 6 from deforming, cracking and breaking, and improving the quality of the part 6.

[0041] Adjust the distance between the two fixed seats 3 through the sliding shaft 22 to realize the adjustment of the distance between the two knurling wheels 4. When the outer diameter of the part 6 is the same, the consistency of the outer diameter size after knurling is excellent, improving the production efficiency and reducing the cost of knurling processing.

[0042] This tool is suitable for batch production of knurling processing of parts between 0 and 10 mm.

[0043] Other parts not described belong to the prior art.

Claims

1. A knurling tool, characterized in that: It includes a tool shank (1), an adjusting table (2) located at the top of the tool shank (1), two fixed seats (3) symmetrically arranged on the adjusting table (2), and knurling wheels (4) installed on each fixed seat (3); A fixed side plate (21) is provided on the adjusting table (2), and a sliding shaft (22) is provided on the adjusting table (2). One fixed seat (3) is slidably connected to one end of the sliding shaft (22), and the other fixed seat (3) is slidably connected to the other end of the sliding shaft (22); Two sliding holes (211) are formed in the fixed side plate (21), and a bolt hole (31) communicating with the sliding hole (211) is formed in the fixed seat (3); A hexagon flange bolt (51) fixes the sliding shaft (22) through the sliding hole (211) and the bolt hole (31); A part (6) is located between the two knurling wheels (4) and is bilaterally symmetrically extruded and cut by the two knurling wheels (4).

2. The knurling tool according to claim 1, characterized in that: A first V-shaped groove (212) is provided on the fixed side plate (21), and a second V-shaped groove (32) is provided on the fixed seat (3), and the first V-shaped groove (212) matches the second V-shaped groove (32).

3. A knurling tool according to claim 1, wherein: An installation groove (33) is formed at the top of the fixed seat (3), a mandrel hole (34) passing through the installation groove (33) is formed in the fixed seat (3), a mandrel (35) is installed in the mandrel hole (34), and the knurling wheel (4) is fixed in the installation groove (33) through the mandrel (35).

4. A knurling tool according to claim 3, wherein: The fixed seat (3) is provided with a screw hole (36) communicating with the mandrel hole (34), and an internal hexagon flat end set screw (52) fixes the mandrel (35) through the screw hole (36).

5. A knurling tool according to claim 1, characterized in that: A sliding shaft hole (37) is formed in the fixed seat (3), the sliding shaft hole (37) communicates with the bolt hole (31), and the sliding shaft (22) is located in the sliding shaft hole (37).

6. A knurling tool according to claim 5, characterized in that: A positioning groove (23) is formed at the top of the adjusting table (2), a positioning wheel (221) is provided in the middle of the sliding shaft (22), and the positioning wheel (221) is located in the positioning groove (23).

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