A special machine clamp for titanium alloy rivet core rod

Abstract

The invention discloses a special machine clamping tool for titanium alloy rivet core rods, comprising a tool rod, and a tool head, a tool clamp and a blade are arranged at one end of the tool rod; the number of the blades is four, and all are rotationally symmetrically arranged about the outer circle center axis, so that the stability of the device is better and the roundness of the workpiece can be better controlled; the blade is fixed to the tool clamp by an inclined block; the side of the inclined block connected to the tool clamp is a second inclined surface; and the side of the tool clamp connected to the blade is a second inclined surface; an internal threaded hole is also arranged on the end face of the inclined block; the angle between the second inclined surface and the center axis of the internal threaded hole is 5 degrees; the tool clamp close to the inclined block can be fixed; the angle between the first inclined surface and the plane is 5 degrees, so the workpiece can be straightened during the processing to ensure its coaxiality.

Description

Technical Field

[0001] The invention relates to the technical field of cutting tools, in particular to a special machine clamping tool for titanium alloy rivet core rods. Background Art

[0002] In the past, the processing of slender cylinders such as rivet core rods made of titanium alloys was difficult due to the unbalanced force on the workpiece surface, which affected the coaxiality of the workpiece. If the coaxiality requirements were high, it would be difficult to process them, resulting in a high scrap rate and increased production costs. Summary of the invention

[0003] The object of the present invention is to provide a special machine clamping cutter for titanium alloy rivet core rod to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides a technical solution: a special machine clamp knife for titanium alloy rivet core rod, comprising a tool rod, one end of which is provided with a tool head; a tool clamp is provided on the tool head, and the tool clamp is used to fix a blade provided on the tool head; there are four tool clamps, which are all rotationally symmetrically arranged with the central axis of the tool rod as the central axis; the blade is fixed to the tool clamp by a provided bevel block; a plane and a first bevel are provided on the tool clamp, and the angle between the first bevel and the plane is 5 degrees; an internal threaded hole is provided on the end face of the bevel block, and the side of the bevel block connected to the blade is a second bevel, wherein the angle between the second bevel and the central axis of the internal threaded hole is 5 degrees.

[0005] As a preferred technical solution of the present invention: an air inlet hole is provided on the central axis of the knife rod, and a water inlet hole is provided on the knife rod, wherein the angle between the central axis of the water inlet hole and the central axis of the air inlet hole is 35 degrees.

[0006] As a preferred technical solution of the present invention: two 30-degree chamfers are provided on a side of the blade facing the tool holder.

[0007] As a preferred technical solution of the present invention: the knife rod is also provided with two annular grooves for installing sealing rings, and the annular grooves are arranged on both sides of the water inlet hole; the end of the knife rod facing the knife head is also provided with an installation groove for placing an O-ring.

[0008] As a preferred technical solution of the present invention: the tool rod is fixedly connected to the tool head via a positioning plate.

[0009] By adopting the first technical solution, the beneficial effects of the present invention are:

[0010] 1. Since there are four blades, all of which are arranged rotationally symmetrically about the outer circle center axis, the device has better stability and can better control the roundness of the workpiece;

[0011] 2. The angle between the second bevel and the center axis of the internal threaded hole is 5 degrees, which can ensure the fixation of the tool holder close to the bevel block;

[0012] 3. The angle between the first inclined surface and the plane is 5 degrees, so the workpiece can be straightened during the processing to ensure its coaxiality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the main structure of the machine clamping knife of the present invention;

[0014] Figure 2 It is a schematic diagram of the end surface structure of the machine clamping tool of the present invention;

[0015] Figure 3 It is a schematic diagram of the cross-sectional structure of the tool bar of the present invention;

[0016] Figure 4 It is a schematic diagram of the structure of the tool holder and the blade when they are connected;

[0017] Figure 5 It is a front structural schematic diagram of the inclined block of the present invention;

[0018] Figure 6 It is a schematic diagram of the cross-sectional structure of the inclined block of the present invention;

[0019] Figure 7 It is a schematic diagram of the position structure of the blade and the tool holder;

[0020] Figure 8 Schematic diagram of the bolt holes on the side of the cutter head.

[0021] In the figure: 1, workpiece; 2, blade; 3, tool holder; 4, tool head; 5, positioning plate; 6, water inlet hole; 7, tool rod; 8, air inlet hole; 9, mounting groove; 10, ring groove; 11, inclined block; 12, second inclined surface; 13, chamfer; 14, plane; 15, second inclined surface; 16, internal threaded hole; 17 first bolt hole; 18, second bolt hole. DETAILED DESCRIPTION

[0022] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and cannot be understood as limiting the present invention. In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "upper surface", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0023] See also Figure 1-6 The present invention provides an embodiment: a special machine clamp knife for titanium alloy rivet core rod, comprising a knife bar 7, one end of which is provided with a knife head 4; a knife clamp 3 is provided on the knife head 4, and the knife clamp 3 is used to fix the blade 2 provided on the knife head 4; the number of the knife clamps 3 is four, and they are all rotationally symmetrically arranged with the central axis of the knife bar 7 as the central axis; so that the stability of the device is better, and the roundness of the workpiece can be better controlled;

[0024] The blade 2 is fixed to the tool holder 3 by means of a bevel block 11; a plane 14 and a first bevel 12 are provided on the tool holder 3, and the angle between the first bevel 12 and the plane 14 is 5 degrees; the angle between the first bevel 12 and the plane 14 is 5 degrees, so the workpiece can be straightened during the processing to ensure its coaxiality.

[0025] An internal threaded hole 16 is provided on the end face of the bevel block 11, and a side of the bevel block 11 connected to the blade 2 is a second bevel 15, wherein the angle between the second bevel 15 and the center axis of the internal threaded hole 16 is 5 degrees, which can ensure that the tool holder 3 close to the bevel block 11 is fixed.

[0026] Since an air inlet hole 8 is provided on the central axis of the tool rod 7, and a water inlet hole 6 is provided on the tool rod 7, wherein the angle between the central axis of the water inlet hole 6 and the central axis of the air inlet hole 8 is 35 degrees, it is convenient for gas and liquid to flow to the tool head 4 at the same time, thereby cleaning and cooling the tool head 4.

[0027] Since the blade 2 is provided with two 30-degree chamfers 13 on one side facing the tool holder 3, it is convenient to blow out the iron cuttings under the action of the air cavity and the water cavity of the tool rod 7, preventing the iron cuttings from entering the cutter head 4 or getting stuck on the blade 2, scratching the blade 2, and affecting the processing accuracy.

[0028] To prevent leakage of liquid and gas, the knife bar 7 is provided with two annular grooves 10 for installing sealing rings, and the annular grooves 10 are arranged on both sides of the water inlet hole 6; the end of the knife bar 7 facing the knife head 4 is also provided with an installation groove 9 for placing an O-ring. The above scheme makes the flow rate of liquid and gas high, and effectively handles the iron filings.

[0029] Since the knife rod 7 is fixedly connected to the knife head 4 via the positioning plate 5, for example, the two are fixedly connected by welding, it is possible to save materials and costs.

[0030] The working principle of the present invention is: firstly, the threaded hole on the end face of the cutter head 4 is connected by bolts. After the bolts are fixed, the positioning of the blade 2 can be realized, and then the blade adjustment is convenient to ensure that the central axis of the workpiece 1 is on the axis of the machine clamping knife. When the blade adjustment is completed and the bolts are tightened, the workpiece performs a rotational motion, and the titanium alloy rivet core rod special machine clamping knife performs a feeding motion. When the two are in contact, the tip of the blade 2 starts to cut the workpiece. As time goes by, the feed amount is continuously increased, and the workpiece 1 enters the cutter head 4. The deviation of 5° is presented on the back of the knife clamp 3 and the contact surface of the blade 2 and the knife clamp 3. In this process, the workpiece can be straightened to ensure its coaxiality.

[0031] like Figure 7 As shown in the figure, the blade 2 and the tool holder 3 are 0.1° apart in order to prevent the blade from being processed for the second time. The iron cuttings generated during the processing are blown out by the blade 2 with two 30° chamfers 13 under the action of the air cavity and water cavity of the tool rod 7, so as to prevent the iron cuttings from entering the cutter head 4 or getting stuck on the blade 2, scratching the blade 2 and affecting the processing accuracy.

[0032] Finally, the processing is completed after it reaches the designated position.

[0033] In addition, Figure 8 As shown, by connecting the bolts with the first bolt holes on the end face of the cutter head, the cutter head 4 is slightly deformed so that the screws in the second bolt holes 18 on the side are tightened, thereby constraining the bolts on the side and ensuring the fixation of the cutter head 4 and the blade 2.

[0034] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A machine-clamped knife, characterized in that: It comprises a knife rod (7), one end of which is provided with a knife head (4); The cutter head (4) is provided with a cutter clamp (3), and the cutter clamp (3) is used to fix the provided blade (2) on the cutter head (4); The number of the tool holders (3) is four, and all are rotationally symmetrically arranged with the central axis of the tool rod (7) as the central axis; The blade (2) is fixed to the blade holder (3) via a provided bevel block (11); The tool holder (3) is provided with a plane (14) and a first inclined surface (12), and the angle between the first inclined surface (12) and the plane (14) is 5 degrees; An internal threaded hole (16) is provided on the end surface of the inclined block (11), and a surface of the inclined block (11) connected to the blade (2) is a second inclined surface (15), wherein the angle between the second inclined surface (15) and the central axis of the internal threaded hole (16) is 5 degrees; An air inlet hole (8) is provided on the central axis of the knife rod (7), and a water inlet hole (6) is provided on the knife rod (7); wherein the angle between the central axis of the water inlet hole (6) and the central axis of the air inlet hole (8) is 35 degrees; The knife rod (7) is also provided with two annular grooves (10) for installing sealing rings, and the annular grooves (10) are arranged on both sides of the water inlet hole (6); An end of the knife rod (7) facing the knife head (4) is also provided with a mounting groove (9) for accommodating an O-ring; The knife rod (7) is fixedly connected to the knife head (4) via a positioning plate (5).

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