CN207577514U - A kind of nuclear power container take over inner groovy process tool - Google Patents
A kind of nuclear power container take over inner groovy process tool Download PDFInfo
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- CN207577514U CN207577514U CN201721653041.6U CN201721653041U CN207577514U CN 207577514 U CN207577514 U CN 207577514U CN 201721653041 U CN201721653041 U CN 201721653041U CN 207577514 U CN207577514 U CN 207577514U
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000008569 process Effects 0.000 title claims abstract description 23
- 238000003754 machining Methods 0.000 claims description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910000746 Structural steel Inorganic materials 0.000 claims description 4
- 229910001315 Tool steel Inorganic materials 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 16
- 238000005520 cutting process Methods 0.000 description 12
- 229910052742 iron Inorganic materials 0.000 description 8
- 238000003672 processing method Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000003381 stabilizer Substances 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 210000002445 nipple Anatomy 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 229910000997 High-speed steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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Abstract
The utility model is related to a kind of nuclear power container take over inner groovy process tools, including knife bar (3), it is preferred that the cutter hub (5) on knife bar (3) is fixed on by holding screw (4), the knife bar (3) includes tail portion gripping section (31), intermediate lengthening section (32) and head cutter holder (33), the cutter hub (5) is made of shank (51) and blade (52), described shank (51) one end is fixed on by holding screw (4) in knife bar (3), the cutter hub (5) is for 2~6 the identical cutter hub of shape (5), its shank (51) size remains unchanged, blade (52) width and length are become larger by small.
Description
Technical Field
The utility model relates to a processing cutter, concretely relates to inner groovy processing cutter is taken over to nuclear power container.
Background
The voltage stabilizer is a key device of a loop of the nuclear power station and mainly used for stabilizing and adjusting the pressure of the loop. Fluid with temperature change in the process of stabilizing and adjusting pressure frequently enters or flows out of the voltage stabilizer through the connecting pipe of the voltage stabilizer, so that a welding seam between the connecting pipe body and the safety end has constantly changing temperature gradient and alternating stress, and further thermal fatigue or thermal shock failure of a component can be caused, and the safety of a nuclear reactor is influenced. In order to reduce the risk, and meanwhile, in view of ensuring the welding quality, the inner part of the connecting pipe of the voltage stabilizer is generally designed to be provided with an annular groove structure, such as an inner groove of the connecting pipe shown in fig. 1, wherein the inner groove of the connecting pipe is an annular groove, and the influence of the thermal impact on the welding seam in the connecting pipe is avoided by welding a section of thermal impact-proof sleeve.
The annular groove in the connecting pipe is far away from the end part of the connecting pipe, the distance from the annular groove to the end surface of the connecting pipe can reach 500mm, the inner diameter of the connecting pipe is small and is generally within phi 100mm, and the whole set of cutter needs to have long overhang, so that the rigidity is poor; the cross section width of the groove in the connecting pipe is generally 4-14 mm, the length is about 10-50 mm, the length-width ratio can be up to 5 times at most, and scrap iron is easily extruded in the groove to damage a cutter in the machining process, so that the dimensional accuracy and the surface quality of the groove are influenced; meanwhile, the outer diameter of the inner groove of the connecting pipe is usually about 0-10 mm larger than the inner diameter of the connecting pipe body; the common conventional cutter and the processing method thereof cannot process at all; if the dimension of the workpiece is out of tolerance or defective due to the cutting in the machining process, the whole workpiece is scrapped.
For the above reasons, the present inventors have conducted intensive studies to develop a special tool for machining an inner groove of a nipple, which can solve the above problems, to achieve the machining of the inner groove of the nipple.
SUMMERY OF THE UTILITY MODEL
In order to overcome the problems, the inventor of the invention makes an intensive study to design a machining tool for an inner groove of a connecting pipe of a nuclear power container.
In particular to a processing cutter for an inner groove of a connecting pipe of a nuclear power container,
the cutter comprises a cutter bar 3 and a cutter body 5 fixed on the cutter bar 3, the cutter body 5 is fixed with the cutter bar 3 through a set screw 4,
the tool shank 3 comprises a tail clamping section 31, a middle elongated section 32 and a head tool holder 33,
the end edge of the head holder 33 away from the middle elongated section 32 is provided with a notch 331, and the notch 331 is provided with a plurality of threaded through holes 332 for installing the set screws 4, so that the head holder 33 is fixedly connected with the cutter body 5 through the set screws 4.
Wherein,
the lateral cross-section of the tail clamping section 31 is approximately rectangular,
the intermediate elongate section 32 is circular in transverse cross-section,
the head holder 33 has a rectangular transverse cross-section and a transverse cross-sectional area smaller than the inner circle of the adapter body.
Wherein,
the middle elongated section 32 is provided with a groove 321 along the length direction, the groove 321 is a rectangular or U-shaped groove, and a cooling pipe is arranged in the groove;
the cutter bar 3 is formed integrally,
the cutter bar 3 is high-quality carbon structural steel or tool steel,
the set screw 4 is a socket head cap screw,
the notch 331 is rectangular.
Wherein,
the cutter body 5 is composed of a handle part 51 and a blade part 52, the handle part 51 and the blade part 52 are integrally formed,
the other end of the shank 51 is secured in the indentation 331 of the header holder 33 by a set screw 4,
the blade 52 is connected with one end of the shank 51 and protrudes out of the side surface of the shank 51, and the part of the blade 52 connected with the shank 51 forms a chamfer angle.
Wherein,
one section of the blade part 52 is circular arc, the right side of the circular arc of the section is connected with the handle part by an equidistant straight line,
the blade portion 52 is symmetrical about a center line of the circular arc-shaped cross section along a horizontal projection of the cross section having the circular arc-shaped cross section direction.
Wherein,
the blade part 52 is further provided with a chip breaker 521, the chip breaker 521 is preferably of a circular arc shape, and the chip breaker 521 is used for discharging steel chips generated when the cutter processes the inner groove 1 of the adapter.
Wherein,
the cutter body 5 is 2-6 cutter bodies 5 with the same shape, the size of the handle part 51 is kept unchanged, the width and the length of the blade part 52 are gradually increased from small to large,
the width of the blade part 52 of the maximum cutter body 5 is consistent with the width of the inner groove 1 of the adapter; the distance from the center line of the circular arc section of the blade part 52 to the side surface of the handle part 51 is kept constant.
The utility model discloses the beneficial effect who has includes:
(1) the processing cutter for the inner groove of the connecting pipe provided by the utility model has simple structure and lower manufacturing cost;
(2) according to the processing cutter for the inner groove of the connecting pipe, the cutter can be polished by the cutter, and is repeatedly used, so that the use cost is low;
(3) according to the inner groove processing cutter for the connecting pipe, which is provided by the utility model, the cutter comprises a plurality of cutter bodies, the cutter body strength can be ensured to be maximum in each turning process, and the turning process is safe and reliable;
(4) according to the processing cutter for the inner groove of the connecting pipe, the grooves have processing allowance in the processing process, and the processing allowance is still left when the grooves have problems, so that the scrapping of workpieces cannot be caused;
(5) according to the utility model provides a take over inner groovy processing cutter can guarantee that turning process iron fillings can discharge smoothly, avoids iron fillings crowded in the recess.
Drawings
FIG. 1 shows the state after the groove in the adapter is machined;
FIG. 2 shows a schematic view of a tool mounting arrangement;
FIG. 3 shows a schematic view of the tool holder configuration;
FIG. 4 shows a side view of the knife bar construction;
FIG. 5 shows a schematic view of a blade structure;
FIG. 6 shows a schematic view of a blade structure;
FIG. 7 shows a top view of the cutter body structure;
FIG. 8 shows a top view of the cutter body structure;
FIG. 9 shows a side view of the cutter body structure;
fig. 10 shows a side view of the cutter body structure;
fig. 11 shows a side view of the cutter body structure.
The reference numbers illustrate:
1-inner groove of adapter
2-connecting pipe body
3-knife bar
31-tail clamping section
32-middle extension section
321-groove
33-head tool holder
331-notch
332-threaded through hole
4-set screw
5-knife body
51-handle
52-blade part
521-chip breaker
522-inner arc
523-outer arc
L1-length of blade extending beyond shank
Radius of the circular arc of the R1-section
R2-radius of inner arc
A1-included angle between left side circular arc and right side equidistant straight line of circular arc section of blade part
A2-arc edge relief angle
D1-width of right side of blade
D2-shank section Width
D3-distance from center line of arc-shaped section of blade part to one side face of handle part
D4-handle height
D5-distance between the circle center of the arc inside the edge and the top surface of the edge
D6-diameter of arc
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. The features and advantages of the present invention will become more apparent from the description.
The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
According to the nuclear power container adapter inner groove machining tool provided by the utility model, referring to fig. 2 and 3, the tool comprises a tool bar 3 and a tool body 5 fixed on the tool bar 3, the tool body 5 is fixed with the tool bar 3 through a set screw 4, wherein the tool bar 3 comprises a tail clamping section 31, a middle lengthening section 32 and a head tool holder 33,
in a preferred embodiment, referring to fig. 4, an edge of one end of the head holder 33 away from the middle extension section 32 is provided with a notch 331, and the notch 331 is provided with a plurality of threaded through holes 332 for installing the set screws 4, so that the head holder 33 is fixedly connected with the cutter body 5 through the set screws 4.
The equipment used in the processing process is a common horizontal lathe, a cutter rod 3 is clamped on the lathe, and a cutter body and the cutter rod are fixedly connected in a propping manner through a set screw 4.
In a preferred embodiment, referring to fig. 3 and 4, the middle elongated section 32 is provided with a groove 321 along the length direction, the groove 321 is a rectangular or U-shaped groove, and a cooling pipe is arranged in the groove; middle extension section 32 sets up rectangle or U-shaped groove and can place condenser tube for cooling down in the course of working.
In a preferred embodiment, as shown with reference to fig. 3 and 4, the lateral cross-section of the trailing clamping section 31 is approximately rectangular. The upper surface and the lower surface of the tail clamping section 31 are planes and parallel, the transverse section of the tail clamping section 31 is preferably approximately rectangular, the other end of the tail clamping section 31 is connected with a lathe, the opposite side of the tail clamping section 31 and the clamping position of the lathe is a plane and is vertical to the upper surface and the lower surface, and the distance between the upper surface and the lower surface is matched with the clamping position of the lathe; facilitating the fixation of the tail clamping section 31 to the lathe.
In a preferred embodiment, referring to fig. 3 and 4, the transverse cross section of the middle extension segment 32 is circular, and the transverse cross section area is as large as possible and can be placed in the inner hole of the connecting pipe body; the transverse section of the middle lengthened section 32 is not limited, is preferably circular, and the processing process is ensured not to collide with the inner wall of the connecting pipe body under the condition that the sectional area is as large as possible;
in a preferred embodiment, as shown in fig. 3 and 4, the head holder 33 has a transverse cross-section smaller than the inner circle of the adapter body, and preferably has a rectangular transverse cross-section, and the head holder 33 must be accommodated in the inner hole of the adapter body;
the cutter bar 3 is formed integrally,
the cutter bar 3 is high-quality carbon structural steel or tool steel,
the set screw 4 is a socket head cap screw,
the cutter body 5 is made of high-speed steel,
the notch 331 is a rectangular shape and,
because the annular groove in the connecting pipe to be processed is far away from the end part of the connecting pipe, the distance from the annular groove to be processed to the end surface of the connecting pipe can reach 500mm, the inner diameter of the connecting pipe is small and is generally within phi 100mm, the whole set of cutter needs to have long overhang and needs to keep good rigidity, and the structure of the cutter bar just can meet the requirement.
The cutter bar 3 is made of high-quality carbon structural steel or tool steel and needs to be quenched and tempered to improve the strength of the cutter bar.
The set screw 4 is a standard component and is used for fastening the cutter body 5, and is preferably an inner hexagonal socket head cap screw.
In a preferred embodiment, as shown in fig. 5 and 6, the cutter body 5 is composed of a shank 51 and an edge 52, the shank 51 and the edge 52 are integrally formed, the shank 51 is fixed in a rectangular notch 331 of the head holder 33 by a set screw 4, and the shank 51 is preferably rectangular.
In a preferred embodiment, referring to fig. 7 and 8, the blade 52 is connected to one end of the shank 51 and protrudes from the side of the shank 51, and the portion of the blade 52 connected to the shank 51 forms a bevel. To avoid stress concentration, the portion of the blade 52 that meets the shank 51 may be beveled to provide a gradual transition.
In a preferred embodiment, as shown in fig. 11, the upper left corner of the blade portion 52 is a circular arc-shaped blade, and no chamfer is provided, the circular arc diameter D6 can be used for machining the width of the inner groove of the adapter, that is, the circular arc diameter D6 is equal to the width of the inner groove of the machined adapter; the circular arc diameter D6 is the blade width of the largest cutter body; as shown in fig. 6, the arc edge back angle a2 may be 3-15 °, that is, the included angle of the arc edge in the vertical direction is 3-15 °.
In a preferred embodiment, as shown in fig. 7 and 8, a cross section of the blade portion 52 is a circular arc, and the right side of the circular arc of the cross section is connected with the handle portion by a straight line with equal distance; the section circular arc is in equal slope transition connection with the equidistant straight line on the right side of the section circular arc, the included angle of the oblique line (namely, the included angle A1 between the circular arc on the left side of the section circular arc and the equidistant straight line on the right side of the section circular arc) is preferably 5-12 degrees, namely, the included angle in the horizontal plane of the circular arc edge is preferably 5-12 degrees; to avoid stress concentration, the portion of the blade 52 that meets the shank 51 may be beveled to provide a gradual transition.
The blade portion 52 is symmetrical about a center line of the circular arc-shaped cross section along a horizontal projection of the cross section having the circular arc-shaped cross section direction, as shown in fig. 8.
Referring to fig. 9 and 11, the blade portion 52 can be completely arranged in the inner groove 1 of the adapter along the cross-sectional direction shown in the figure, so as to facilitate cutting, and the maximum circular arc diameter D6(2 times R1) of the cutter body 5 is equal to the width of the machined inner groove 1 of the adapter, namely the diameter of the inner groove of the adapter;
in a preferred embodiment, referring to fig. 11, the inner profile of the blade part 52 is a circular arc, and the radius R2 of the blade part inner circular arc 522 is 1-10 mm larger than the inner circle radius of the adapter inner groove 1; as shown in FIG. 10, the distance D5 between the center of the arc of the inner side of the blade and the top surface of the blade is 1-5 mm; as shown in fig. 11, the outer side profile is formed by sequentially connecting multiple straight lines in a forward direction, the outer side profile is preferably an arc, and the radius of the outer side arc 523 is 2-10 mm smaller than the radius of the outer circle of the inner groove of the adapter; the structure can facilitate processing and ensure the strength of the blade part.
The special structure of the blade part can well process the shape of the inner groove of the adapter.
In a preferred embodiment, as shown in fig. 5 and 6, the blade portion 52 is further provided with a chip breaker 521, the chip breaker 521 is preferably of a circular arc shape, and the chip breaker 521 is used for collecting and discharging steel chips generated when the tool processes the inner groove 1 of the adapter;
referring to fig. 5 and 6, the chip breaker 521 is disposed on the right side of the circular-arc-shaped blade, the depth of the chip breaker 521 is preferably 1-5 mm, and the width of the chip breaker 521 is determined according to the maximum cutting depth, for example, the maximum cutting depth of the cutter body is 15mm, it is recommended that the width of the chip breaker 521 is 16-20 mm, that is, the width of the chip breaker 521 is 1-5 mm wider than the maximum cutting depth of the cutter body 5; meanwhile, the blade 52 is higher than the shank 51 to ensure the strength of the blade 52.
In a preferred embodiment, referring to fig. 7 and 8, the cutter body 5 is 2 to 6 cutter bodies with the same shape, the size of the shank 51 is kept unchanged, the width and length of the blade 52 are gradually increased from small to large, and the width (i.e., the circular arc diameter D6, as shown in fig. 11) of the maximum cutter body 5 is consistent with the width of the groove; the distance between the center line of the circular arc edge of the blade part 52 of the cutter body 5 and the side surface of the shank part (i.e., the distance D3 between the center line of the circular arc cross section of the blade part and the side surface of the shank part) is kept constant.
The processing process is characterized in that the cutter bodies with different specifications are replaced to gradually process the inner grooves of the connecting pipes until the final size is reached, the processing of the inner grooves of the connecting pipes of the nuclear power container can be effectively finished through the cutter, the cost is low, the manufacturing is convenient, the use can be repeated, the processing process is safe and reliable, and the safety of nuclear products is guaranteed.
The processing method of the inner groove processing cutter of the adapter tube comprises the following steps:
step 1): the shortest cutter body 5 is fixed on the cutter bar 3,
step 2): utilizing the inner wall of the connecting pipe to set a tool;
step 3): trial run;
step 4): withdrawing the cutter and cleaning scrap iron;
step 5): and (5) changing the tool, and repeating the steps until the groove 1 in the whole adapter is machined.
The processing method of the inner groove processing cutter of the adapter tube comprises the following steps:
step 1): the side of the handle of the cutter body 5 with the shortest blade 52 is closely attached to the inner side of the rectangular notch 331 of the cutter holder 3 head, the cutter body is fixed on the cutter bar 3 by a set screw 4 passing through the threaded hole 332 at the upper part of the rectangular notch 331, and the other end of the cutter bar is clamped on a lathe.
Step 2): utilizing the inner wall of the connecting pipe to carry out tool setting, and calculating and marking the axial extension length of the cutter bar and the radial offset of the cutter bar when the cutter bar enters the connecting pipe;
step 3): trial run, marking the position of the tool nose when the tool nose just starts to turn the inner groove of the connecting pipe, and calculating the maximum cutting depth and the corresponding position of the tool body according to the length of the blade part of the tool body extending out of the handle part;
step 4): turning an inner groove of the connecting pipe, slowly feeding axially, wherein the feeding amount is not more than 0.4mm/rad, paying attention to the vibration condition of the cutter bar, and withdrawing the cutter and cleaning scrap iron every time 1-2 mm is turned;
step 5): when the maximum turning depth of the 1 st cutter body is reached, retracting the cutter, replacing the 1 st cutter body with a2 nd cutter body with the cutting part of the 1 st cutter body being slightly longer, and repeating the steps until the inner groove of the whole connecting pipe is machined.
It is to be noted that the axial feed should be gradually reduced as the turning depth is increased during the turning process.
The processing cutter and the processing method for the inner groove of the connecting pipe have the advantages that the cutter is simple in structure and low in manufacturing cost; the cutter can be polished by the cutter, and can be repeatedly used, so that the use cost is low; the cutter comprises a plurality of cutter bodies, the strength of the cutter body can be ensured to be maximum in each turning process, and the turning process is safe and reliable; the inner grooves of the connecting pipe have machining allowance in the machining process, and the machining allowance still exists when a problem occurs, so that a workpiece cannot be scrapped; can guarantee that turning process iron fillings can discharge smoothly, avoid iron fillings crowded in the interior recess of takeover. Through the utility model discloses can effectively accomplish the processing to this kind of takeover inner groovy, size and precision all satisfy the product requirement, and not only the cost is few, and course of working safe and reliable has still guaranteed nuclear power product safety, has promoted nuclear power product manufacturing capacity.
The utility model discloses in to the wide 9mm of groove in the takeover that will process, dark 26mm is the example:
the cutter body is 4 in the processing process, and the processing method is shown in a figure 8:
the length L1 of the blade part of the cutter body extending out of the handle part is 20mm, the radius of the circular arc blade of the cutting edge point (namely the radius R1 of the circular arc of the cross section) is 3mm, and the width D1 of the right side of the cutting edge part is 5 mm;
2, the length L1 of the blade part of the cutter body extending out of the handle part is 22mm, the radius of the circular arc blade of the tool nose of the blade part is 3.5mm, and the width D1 of the right side of the blade part is 6 mm;
the length L1 of the blade part of the cutter body extending out of the handle part is 24mm, the radius of the circular arc blade of the blade part tool nose is 4mm, and the width D1 of the right side of the blade part is 7 mm;
the length L1 of the blade part of the cutter body extending out of the handle part is 28mm, the radius of the circular arc blade of the cutting edge is 4.5mm, and the width D1 of the right side of the cutting edge is 8 mm.
Referring to FIG. 8, when the cross-sectional width D2 of the shank of the cutter body is 18mm and the height D4 of the shank is 20mm, the dimension from the center line of the edge portion of the cutter body to the left side surface of the shank (i.e., the distance D3 from the center line of the circular cross-section of the edge portion to one side surface of the shank) of the above 4-mentioned cutter bodies is 21 mm. The shank dimensions were unchanged. The width of the maximum cutter body (i.e. the width of the blade part and the diameter D6 of the circular arc) is the width of the inner groove 1 of the adapter, as shown in FIG. 11.
The processing method comprises the following specific steps:
the side surface of the handle part of the cutter body 1 is tightly attached to the inner side of the rectangular notch of the cutter holder at the head part of the cutter bar, the cutter body is fixed on the cutter bar by a set screw penetrating through a threaded hole at the upper part of the rectangular notch, and the other end of the cutter bar is clamped on a lathe;
utilizing the inner wall of the connecting pipe to carry out tool setting, calculating and marking the axial extension length of the cutter bar to be-480 mm, and the radial offset of the cutter bar when the cutter bar enters the connecting pipe to be-3 mm;
trial run, marking the position of the tool nose when the tool nose just starts to turn the inner groove of the connecting pipe, and calculating the maximum cutting depth of the tool body to be 18mm and the corresponding position according to the length of the blade part of the tool body extending out of the handle part; it is ensured that the shank 51 is at least 2mm from the socket 1.
Turning an inner groove of the connecting pipe, slowly feeding axially, wherein the feeding amount is not more than 0.4mm/rad, paying attention to the vibration condition of the cutter bar, and withdrawing the cutter and cleaning scrap iron every time 1-2 mm is turned;
when the maximum turning depth of the 1 st cutter body is 18mm, retracting the cutter, replacing the 1 st cutter body with a2 nd cutter body which is slightly longer than the 1 st cutter body, repeating the above steps until the 4 th cutter body is processed to reach the final size of the inner groove of the connecting pipe, and finishing the processing of the inner groove of the whole connecting pipe.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "left", "right", and the like indicate the directions or positional relationships based on the operational states of the present invention, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.
The present invention has been described above in connection with preferred embodiments, which are merely exemplary and illustrative. On this basis, can be right the utility model discloses carry out multiple replacement and improvement, these all fall into the utility model discloses a protection scope.
Claims (8)
1. A nuclear power container adapter inner groove machining tool is characterized by comprising a tool bar (3) and a tool body (5) fixed on the tool bar (3), wherein the tool body (5) is fixed with the tool bar (3) through a set screw (4),
the cutter bar (3) comprises a tail clamping section (31), a middle lengthening section (32) and a head cutter holder (33),
a notch (331) is formed in the edge of one end, away from the middle lengthened section (32), of the head tool holder (33), a plurality of threaded through holes (332) are formed in the notch (331) and used for installing the set screws (4), and therefore the head tool holder (33) is fixedly connected with the tool body (5) through the set screws (4).
2. The tool for machining the inner groove of the connecting pipe of the nuclear power vessel as claimed in claim 1,
the transverse section of the tail clamping section (31) is approximately rectangular,
the transverse section of the middle lengthened section (32) is circular,
the transverse section of the head tool holder (33) is rectangular, and the transverse sectional area of the head tool holder is smaller than the inner circle area of the connecting pipe body.
3. The tool for machining the inner groove of the nuclear power vessel adapter tube according to claim 1 or 2,
the middle lengthened section (32) is provided with a groove (321) along the length direction, the groove (321) is a rectangular or U-shaped groove, and a cooling pipe is arranged in the groove.
4. The tool for machining the inner groove of the connecting pipe of the nuclear power vessel as claimed in claim 1,
the cutter bar (3) is integrally formed,
the cutter bar (3) is high-quality carbon structural steel or tool steel,
the set screw (4) is a socket head cap screw,
the notch (331) is rectangular.
5. The tool for machining the inner groove of the connecting pipe of the nuclear power vessel as claimed in claim 1,
the cutter body (5) consists of a handle part (51) and a blade part (52), the handle part (51) and the blade part (52) are integrally formed,
the other end of the handle part (51) is fixed in a notch (331) of the head tool holder (33) through a set screw (4),
the blade (52) is connected with one end of the handle (51) and protrudes out of the side surface of the handle (51), and the part of the blade (52) connected with the handle (51) forms a chamfer angle.
6. The tool for machining the inner groove of the nuclear power vessel adapter tube according to claim 5,
one section of the blade part (52) is circular arc, the right side of the circular arc is an equidistant straight line and is connected with the handle part (51),
the blade part (52) is symmetrical about a center line of the circular arc-shaped section along a horizontal projection of the section having the circular arc-shaped section direction.
7. The tool for machining the inner groove of the connecting pipe of the nuclear power vessel as claimed in claim 5 or 6,
the blade part (52) is further provided with a chip breaker groove (521), the chip breaker groove (521) is of a circular arc shape, and the chip breaker groove (521) is used for discharging steel chips generated when the cutter processes the inner groove (1) of the connecting pipe.
8. The tool for machining the inner groove of the nuclear power vessel adapter tube according to claim 5,
the cutter body (5) is 2-6 cutter bodies (5) with the same shape, the size of the handle part (51) is kept unchanged, the width and the length of the blade part (52) are gradually increased from small to large,
the width of the blade part (52) of the largest cutter body (5) is consistent with that of the inner groove (1) of the connecting pipe;
the distance between the center line of the circular-arc section of the blade part (52) and the side surface of the handle part (51) is kept constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721653041.6U CN207577514U (en) | 2017-12-01 | 2017-12-01 | A kind of nuclear power container take over inner groovy process tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721653041.6U CN207577514U (en) | 2017-12-01 | 2017-12-01 | A kind of nuclear power container take over inner groovy process tool |
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| CN207577514U true CN207577514U (en) | 2018-07-06 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107803536A (en) * | 2017-12-01 | 2018-03-16 | 哈电集团（秦皇岛）重型装备有限公司 | A kind of nuclear power container adapter inner groovy process tool and its processing method |
| CN113145868A (en) * | 2021-04-09 | 2021-07-23 | 宁夏西北骏马电机制造股份有限公司 | Machining method and machining tool for machining small-diameter cylinder by lifting vertical lathe |
-
2017
- 2017-12-01 CN CN201721653041.6U patent/CN207577514U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107803536A (en) * | 2017-12-01 | 2018-03-16 | 哈电集团（秦皇岛）重型装备有限公司 | A kind of nuclear power container adapter inner groovy process tool and its processing method |
| CN107803536B (en) * | 2017-12-01 | 2023-08-25 | 哈电集团（秦皇岛）重型装备有限公司 | Nuclear power container connecting pipe inner groove machining tool and machining method thereof |
| CN113145868A (en) * | 2021-04-09 | 2021-07-23 | 宁夏西北骏马电机制造股份有限公司 | Machining method and machining tool for machining small-diameter cylinder by lifting vertical lathe |
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