Tool for centering tool bit and tool bar of PCD (Poly Crystal Diamond) tool before welding

Abstract

The utility model relates to the technical field of PCD (Poly Crystal Diamond) cutters, and discloses a tool for centering a cutter head and a cutter bar of a PCD cutter before welding, which comprises a stand column, the stand column is placed perpendicular to a horizontal plane, a guide rail placed along the vertical direction is fixedly arranged on the outer surface of the stand column, an upper sliding block capable of sliding along a track of the guide rail is arranged on the guide rail, and a lower sliding block capable of sliding along the track of the guide rail is arranged on the upper sliding block. The outer surface of the upper sliding block is connected with a tool bit reducing sleeve; a tool bar reducing sleeve is arranged at the lower end of the guide rail, and the tool bit reducing sleeve and the tool bar reducing sleeve are coaxially distributed in the vertical direction; the tool bit centering device solves the problems that in the prior art, during centering operation, the tool bit is large in placement deviation and prone to falling off, and has the advantage that centering operation of the tool bit and a tool bar structure is achieved more rapidly and accurately, so that the allowance of the PCD tool bit is reduced, the material consumption of the PCD tool bit is reduced, the machining allowance of subsequent procedures is reduced, the production efficiency is improved, and the production cost is reduced. And the manufacturing cost is reduced from the source.

Description

TECHNICAL FIELD

[0001] The utility model relates to PCD cutter technical field, concretely is a kind of tooling for PCD cutter before welding head and shank centring. BACKGROUND

[0002] PCD cutter is composed of two parts of tungsten steel shank and PCD head, because shank and head are two different materials respectively, production process needs to be welded as a whole by welding process, then cutting edge processing is carried out.There is a process called centring before welding, that is, first, a layer of solder is applied on the end face of shank head, then the center of PCD head and the center of shank are pasted and combined, and coaxiality is tried to be achieved, so as to ensure that the allowance of PCD head in 360 degree direction of circumference is sufficient and uniform when cutting edge is processed in the next process.Currently, the centring process is manually carried out, the operator holds shank with left hand, applies solder with right hand, and places PCD head on the end face of shank with tweezers held by right hand, and whether the center of PCD head is in the center is observed, and adjustment is continuously carried out until it is considered that the center is in the center.

[0003] Problems exist in the process of manual centring: 1, shank is inclined, which causes PCD head to fall off; 2, hand shaking causes PCD head to fall off; 3, PCD head is not placed in place, and the center of gravity of PCD head is unbalanced and falls off; 4, the error is too large in visual observation of centring; 5, the deviation of the result of centring by the operator with poor eyesight is large. 6, because PCD head falls off, it needs to be re-applied with solder and re-centred, and repeated operation is carried out, which consumes a long time. The above problems cause the coaxiality of PCD head and shank to be too poor, which causes no processing allowance in a certain circumferential direction in the next process, and the semi-finished cutter is scrapped. In order to solve this problem, the traditional solution is to increase the diameter of PCD head to make up for the deviation. However, after the diameter of PCD head is increased, the problems of increase of raw material cost, increase of processing difficulty in the next process, increase of processing cost, reduction of efficiency and the like are caused. SUMMARY

[0004] (I) Technical problem solved: in view of the deficiencies of the prior art, the utility model provides a tooling for centring PCD head and shank before welding, which has the advantages of faster and more accurate centring operation of the structure of PCD head and shank, and solves the problem of large deviation and easy falling of PCD head in the centring operation of the prior art.

[0005] (II) Technical scheme: in order to achieve the purpose of faster and more accurate centring operation of the structure of PCD head and shank, the utility model provides the following technical scheme: a tooling for centring PCD head and shank before welding, comprising a vertical column, the vertical column is placed vertically to the horizontal plane, an outer surface of the vertical column is fixedly provided with a guide rail placed in the vertical direction, an upper sliding block slidably mounted on the guide rail is provided on the guide rail, and an outer surface of the upper sliding block is connected with a head variable-diameter sleeve; a shank variable-diameter sleeve is arranged at the lower end of the guide rail, and the head variable-diameter sleeve and the shank variable-diameter sleeve are coaxially distributed in the vertical direction.

[0006] Preferably, the lower end of the guide rail is provided with a lower sliding block; the tool head reducing sleeve and the tool rod reducing sleeve are connected with the upper support and the lower support respectively, and the upper support and the lower support are fixedly connected with the upper sliding block and the lower sliding block through bolts respectively.

[0007] Preferably, the side surfaces of the upper sliding block and the lower sliding block are respectively provided with an upper locking mechanism and a lower locking mechanism, and when the upper locking mechanism and the lower locking mechanism are started, the upper sliding block and the lower sliding block lose the freedom of movement on the surface of the guide rail.

[0008] Preferably, the upper support and the lower support are both provided with coaxial mounting grooves penetrating through the upper and lower surfaces in the vertical direction, and the tool head reducing sleeve and the tool rod reducing sleeve are detachably connected with the upper support and the lower support through the mounting grooves.

[0009] Preferably, the lower end of the column is fixedly connected with a base through bolts, and the base is parallel to the horizontal plane.

[0010] Preferably, the base is rectangular, and the upper surface of the base is arrayed with more than four horizontal adjusting nuts, and the height of the horizontal adjusting nut in the vertical direction is adjustable.

[0011] (Three) beneficial effects: compared with the prior art, the utility model provides a kind of tooling for the PCD cutter before welding tool head and tool rod centering, with the following beneficial effects:

[0012] 1、The tooling for the PCD cutter before welding tool head and tool rod centering, by installing vertical guide rail on column, limiting the movement direction of upper sliding block and lower sliding block, making it have and only have vertical freedom of movement, ensuring that the mounting grooves in the upper support and the lower support on the front surface of the two are coaxially distributed, so that the tool head reducing sleeve and the tool rod reducing sleeve coaxially connected in the mounting groove, in use, by the detachability of tool head reducing sleeve and tool rod reducing sleeve, select the reducing sleeve with diameter consistent with the tool head and tool rod to be centered, insert tool rod into tool rod reducing sleeve, loosen upper locking stud, move upper sliding block to tool rod head position, lock upper locking stud, put PCD cutter into tool head reducing sleeve, at this time, tool head and tool rod are coaxial, loosen upper locking stud, move upper sliding block part upwards more than 50mm away from PCD cutter, keep vertical direction to remove tool rod, complete tool head and tool rod centering operation;Compared with the prior art, the utility model avoids large error that may occur during manual centering, simplifies the operation, can control the error range within 0.1mm, thereby reducing the excess of PCD cutter, reducing the material consumption of PCD cutter, reducing the machining allowance of subsequent process, improving production efficiency, reducing manufacturing cost from the source.

[0013] 2. The tool for centering the head and the shank of the PCD cutter before welding, the bottom of the column is fixedly connected with the base through bolts, and the edge of the base is arranged with more than four horizontal adjusting nuts, in use, the operator can change the length of the part exceeding the lower surface of the base by turning the horizontal adjusting nut, so that the base is kept parallel to the horizontal plane no matter where it is placed, and the accuracy of the centering operation is increased. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a complete structure schematic view of the utility model;

[0015] Figure 2 It is a local enlarged structure schematic view of the head reducing sleeve of the utility model;

[0016] Figure 3 It is a local enlarged structure schematic view of the shank reducing sleeve of the utility model;

[0017] Figure 4 It is a front view structure schematic view of the utility model when the head is being aligned.

[0018] In the figure: 1, column; 2, guide rail; 3, upper sliding block; 31, upper support; 311, head reducing sleeve; 32, upper locking mechanism; 4, lower sliding block; 41, lower support; 411, shank reducing sleeve; 42, lower locking mechanism; 5, base; 51, horizontal adjusting nut. DETAILED DESCRIPTION

[0019] 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.

[0020] Please refer to Figures 1-4The utility model relates to a tooling for the centering of PCD cutters in a pair of welded head and shank, which comprises a vertical column 1, the vertical column 1 is perpendicular to the horizontal plane, the outer surface is fixedly installed with guide rail 2 which is placed along the vertical direction, the guide rail 2 is installed with upper sliding block 3 which can slide along the track of guide rail 2, the outer surface of upper sliding block 3 is connected with head variable diameter sleeve 311; the lower end of guide rail 2 is provided with shank variable diameter sleeve 411, the head variable diameter sleeve 311 and the shank variable diameter sleeve 411 are coaxially distributed in the vertical direction, which ensures the accuracy of centering operation; the lower end of guide rail 2 is provided with lower sliding block 4; the head variable diameter sleeve 311 and the shank variable diameter sleeve 411 are connected with upper support 31 and lower support 41 respectively, the upper support 31 and the lower support 41 are fixedly connected with upper sliding block 3 and lower sliding block 4 through bolts respectively, so that the position of the shank variable diameter sleeve 411 and the head variable diameter sleeve 311 in the vertical direction can be adjusted according to the specific size of the cutter to be centered in operation.

[0021] Please refer to Figures 1-3 The side surfaces of upper sliding block 3 and lower sliding block 4 are respectively provided with upper locking mechanism 32 and lower locking mechanism 42, the locking mechanism acting on guide rail 2 is prior art and is not described in detail here; when upper locking mechanism 32 and lower locking mechanism 42 are started, upper sliding block 3 and lower sliding block 4 lose the freedom of movement on the surface of guide rail 2, so as to fix upper sliding block 3 and lower sliding block 4 at a certain height, which facilitates centering installation.

[0022] In the embodiment, upper support 31 and lower support 41 are both provided with coaxial installation grooves penetrating the upper and lower surfaces in the vertical direction, head variable diameter sleeve 311 and shank variable diameter sleeve 411 are both detachably connected with upper support 31 and lower support 41 through the installation grooves, so that the device can realize the replacement of head variable diameter sleeve 311 and shank variable diameter sleeve 411 when centering cutters of different sizes, thereby expanding the application range of the utility model.

[0023] Please refer to Figure 1 The lower end of vertical column 1 is fixedly connected with base 5 through bolts, and base 5 is parallel to the horizontal plane; in the embodiment, base 5 is rectangular, and horizontal adjustment nut 51 is arranged at each of the four end points, the height of horizontal adjustment nut 51 in the vertical direction is adjustable, and in use, the operator can change the length of the part exceeding the lower surface of base 5 by turning horizontal adjustment nut 51, so that base 5 remains parallel to the horizontal plane no matter where it is placed, thereby increasing the accuracy of centering operation.

[0024] Working principle: in this embodiment, the cutter bar variable diameter sleeve 411 is matched with different cutter bar sizes by changing the inner diameter size, the cutter head variable diameter sleeve 311 is the same, before use, adjust the base 5 to be horizontal through horizontal adjusting bolts, select the corresponding specification cutter bar variable diameter sleeve 411 and insert it into the lower support 41 hole, select the corresponding specification cutter head variable diameter sleeve 311 and insert it into the upper support 31 hole, insert the cutter bar into the cutter bar variable diameter sleeve 411, loosen the upper locking stud, move the upper slider 3 down to the cutter bar head position, lock the upper locking stud, put the PCD cutter head into the cutter head variable diameter, at this time the cutter head and the cutter bar are coaxial, loosen the upper locking stud, move the upper slider 3 component up to move away from the PCD cutter head more than 50mm, keep vertical direction to take out the cutter bar, complete the cutter head and cutter bar centering operation.

[0025] In summary, the tool for centering the cutter head and the cutter bar before welding, through the special centering tool operation is simple, fast, efficient, quality is guaranteed, the cutter head and the cutter bar are coaxial, the coaxiality can be controlled within 0.1mm, thereby reducing the allowance of the PCD cutter head, reducing the material consumption of the PCD cutter head, reducing the machining allowance of the subsequent process, improving the production efficiency, and reducing the manufacturing cost from the source.

[0026] It should be noted that in this paper, terms such as "including", "containing" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article or equipment including the element.

[0027] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A tooling for PCD cutters in pairs of weld-on tips and shanks, comprising a column (1), characterised in that: The column (1) is perpendicular to the horizontal plane, and the outer surface is fixedly installed with a guide rail (2) placed in the vertical direction, the guide rail (2) is installed with an upper sliding block (3) which can slide along the guide rail (2) track, the outer surface of the upper sliding block (3) is connected with a cutter head reducing sleeve (311); the lower end of the guide rail (2) is provided with a cutter bar reducing sleeve (411), the cutter head reducing sleeve (311) and the cutter bar reducing sleeve (411) are coaxially distributed in the vertical direction.

2. A tooling fixture for PCD cutters in pairs of pre-welded tips and shanks according to claim 1, characterized in that: The lower end of the guide rail (2) is provided with a lower sliding block (4); the cutter head reducing sleeve (311) and the cutter bar reducing sleeve (411) are connected with an upper support (31) and a lower support (41) respectively, the upper support (31) and the lower support (41) are fixedly connected with the upper sliding block (3) and the lower sliding block (4) by bolts respectively.

3. A tooling fixture for PCD cutters in pairs of pre-welded tips and shanks as claimed in claim 2, wherein: The side surface of the upper sliding block (3) and the lower sliding block (4) is respectively provided with an upper locking mechanism (32) and a lower locking mechanism (42), when the upper locking mechanism (32) and the lower locking mechanism (42) are started, the upper sliding block (3) and the lower sliding block (4) lose the freedom of motion on the surface of the guide rail (2).

4. A tooling fixture for PCD cutters in pairs of pre-welded tips and shanks as claimed in claim 2, wherein: The upper support (31) and the lower support (41) are both provided with coaxial installation grooves penetrating the upper and lower surfaces in the vertical direction, the cutter head reducing sleeve (311) and the cutter bar reducing sleeve (411) are both detachably connected with the upper support (31) and the lower support (41) through the installation grooves.

5. A tooling fixture for PCD cutters in pairs of pre-welded tips and shanks as claimed in claim 1, wherein: The lower end of the column (1) is fixedly connected with a base (5) through bolts, the base (5) is parallel to the horizontal plane.

6. A tooling fixture for PCD cutters in pairs of pre-welded tips and shanks according to claim 5, wherein: The base (5) is rectangular, and the upper surface of the base (5) is arrayed with more than four horizontal adjusting nuts (51) on the edge, the height of the horizontal adjusting nut (51) in the vertical direction is adjustable.

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