CN108995058B - Spherical arc-shaped diamond saw blade machining and cutting method - Google Patents
Spherical arc-shaped diamond saw blade machining and cutting method Download PDFInfo
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- CN108995058B CN108995058B CN201810933141.7A CN201810933141A CN108995058B CN 108995058 B CN108995058 B CN 108995058B CN 201810933141 A CN201810933141 A CN 201810933141A CN 108995058 B CN108995058 B CN 108995058B
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- 238000005520 cutting process Methods 0.000 title claims abstract description 74
- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 36
- 239000010432 diamond Substances 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000003754 machining Methods 0.000 title claims description 14
- 238000003466 welding Methods 0.000 claims abstract description 58
- 239000011159 matrix material Substances 0.000 claims abstract description 27
- 238000003672 processing method Methods 0.000 claims abstract description 10
- 239000000758 substrate Substances 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 238000003698 laser cutting Methods 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000000463 material Substances 0.000 abstract description 17
- 238000007689 inspection Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000002093 peripheral effect Effects 0.000 abstract description 4
- 239000010426 asphalt Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 238000009826 distribution Methods 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 210000000476 body water Anatomy 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- QFXZANXYUCUTQH-UHFFFAOYSA-N ethynol Chemical group OC#C QFXZANXYUCUTQH-UHFFFAOYSA-N 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/22—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by cutting, e.g. incising
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D7/00—Accessories specially adapted for use with machines or devices of the preceding groups
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Road Repair (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The invention relates to a processing and cutting method of a spherical arc diamond saw blade, which is applied to the field of road traffic engineering, in particular to a processing method of a cutting tool of concrete, asphalt and the like or mixed materials thereof and an application scheme thereof. A processing method of spherical arc diamond saw blade mainly comprises cold stamping mode and structure of matrix, welding method and tooling of matrix and tool bit, and the finished product is spherical arc diamond saw blade; a cutting method of spherical arc diamond saw blade includes three cutting directions of horizontal circumference, vertical swing and vertical circumference, the effect of cutting seam is expressed as arc shape in vertical direction, and the horizontal direction is round. The invention discloses a processing and cutting method of a spherical arc diamond saw blade, which solves the problem of poor repair durability of the road surface around the inspection well, and obtains a more reasonable stress condition after repairing materials, thereby improving the maintenance and repair quality of the peripheral area of the inspection well.
Description
Technical Field
The invention relates to a processing and cutting method of a spherical arc diamond saw blade, which is applied to the field of road traffic engineering, in particular to a processing method of a cutting tool of concrete, asphalt and the like or mixed materials thereof and an application scheme thereof.
Background
In municipal facility construction, the problems of road sedimentation, cracks, breakage and the like around a road inspection well (inspection well and catch basin) are always stubborn diseases existing on the road, and are common diseases existing in municipal administration for a long time, so that the traffic running safety is seriously influenced, and the urban environment quality is greatly influenced. However, the repair is subject to the problems of poor durability and short maintenance period.
The road surface around the inspection well is repaired by the following steps: cutting and breaking the damaged pavement, and filling the repairing material. The existing cutting mode is to use a round tool to mark the sinking or cracking range of the inspection well edge by chalk by taking the center of the well as the center of the circle. The minimum distance required by the well lid edge is 30cm-50cm, the well lid edge is cut by a joint cutter for multiple times, and finally, the road structure around the inspection well is broken by an air pick, so that impact is easily generated to the well ring in the breaking and disassembling process, and the road structure around the inspection well is damaged. And the wall of the cutting groove is in a vertical structure, and the repaired material only provides vertical friction force. However, the vehicle is mainly impacted in the horizontal direction in the running process, and after a period of time, the vertical structure is broken. Therefore, the cutting mode has the problems of poor durability of the repaired pavement and short repairing interval period.
Disclosure of Invention
In order to solve the problems, the invention aims to provide a processing method of an arc-shaped diamond saw blade and an application scheme thereof, wherein the processing method is matched with a circumference cutting machine, so that the surface which is cut into an arc shape by 360 degrees of rotation around a well cover can be realized, a cutting area is peeled by matching with a lifting machine, a breaking and disassembling tool is not needed, and a more reasonable stress condition is obtained after a repairing material is filled, so that the maintenance and repair quality of the peripheral area of an inspection well is improved.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the processing method of the spherical arc diamond saw blade mainly comprises the steps of manufacturing a base body and a tool bit and welding the base body and the tool bit, and comprises the following processing steps:
a. the manufacturing method comprises the steps of manufacturing a base body, wherein the base body structure is of a spherical arc structure, the size of the base body structure is designed according to the use requirement, and the middle part of the spherical surface of the base body is of a plane structure and is used for being assembled with a cutting machine; the center of the plane structure is provided with an assembly hole for being assembled with a cutting machine; an auxiliary assembly hole is arranged beside the assembly hole, and the size, the position or the absence of the auxiliary assembly hole is set according to cutting power and assembly factors; the edge of the spherical surface of the base body is of a water gap structure, the spherical surface of the base body is uniformly distributed on the circumference of the arc-shaped edge of the spherical surface of the base body, and the size and the number appearance of the spherical surface of the base body are changed according to requirements; the manufacturing process of the matrix is that a round steel sheet with holes is stamped, then the stamping internal stress is removed by a heat treatment process, the dimension correction is carried out by machining after the heat treatment, and the nozzle structure is formed by circumferential laser cutting after the matrix machining.
b. The cutter head is manufactured, the cutter head contains diamond components, the thickness of the cutter head is larger than that of the matrix, and the size of the cutter head is designed according to the use requirement; the cutter head is of an arc-shaped structure, and the radius of the inner end of the cutter head is matched with the radius of the outer end of the basal body, so that correct welding is ensured; the outer end face of the cutter head is provided with a turbine structure, the turbine structure is uniformly distributed on the circumference of the arc-shaped edge of the outer end face of the cutter head, the purpose of the turbine structure is to reduce friction, increase cutting speed, and the shape, the number and the distribution mode of the turbine structure are designed according to the use requirements.
c. The base body is welded with the cutter head, the cutter heads are welded with the base body in an arc surface contact mode and are uniformly distributed in the circumferential direction, the thickness of the cutter heads is larger than that of the base body, and the thickness of the cutter heads is larger than that of the base body by 0.001-2mm. The cutter head and two sides of the matrix are provided with side gaps, and the inner side of the side gap is slightly larger than the outer side of the side gap; the laser head is aligned to the joint of the cutter head and the matrix according to the specified angle, power and position for welding, the operation is repeated until the front welding is finished, and the back welding is carried out by a similar method until the back welding is finished.
d. The cutter head is edged after welding, and the top edge and the side edge of the cutter head are required to be edged after welding so as to ensure cutting performance.
The technical scheme of the invention is further improved as follows: the punching die comprises an upper die punch and a lower die punch, wherein the upper die punch is of a cylindrical structure, a cavity matched with a target stamping part is arranged in the upper die punch, the central area of the upper die punch is of a planar structure, a guide rod hole matched with a guide rod of the lower die punch is arranged in the center of the upper die punch, the lower die punch is of an appearance matched with the upper die punch, and a guide rod is arranged in the center of the lower die punch.
The technical scheme of the invention is further improved as follows: the welding tool is a combined structure and comprises a magnet and a tool module, wherein the magnet is of a columnar structure with a certain diameter and thickness, is embedded into the tool module, does not slide relatively in a working state, and magnetic force of the magnet meets certain adsorption requirements; the tool module has certain rigidity and appearance, wholly is square, and the contact surface of frock and welding matrix is the arcwall face, and its radian and welding matrix radian assorted, and one side of tool module is magnet circle piece standing groove, has certain degree of depth, and the opposite side is the tool bit standing groove, has certain degree of depth and width, and its degree of depth is the same by tool bit and matrix welded side gap height requirement, and the width is the same with tool bit height, and length is the same with tool bit length, the outside of tool bit standing groove is the step plane that has certain height, and its effect is supplementary fixed, location tool bit.
According to the processed spherical arc-shaped diamond saw blade, the cutting method of the spherical arc-shaped diamond saw blade is to use a circumferential cutting machine to perform the following cutting operations:
a. the circular cutting machine is assembled with an arc saw blade and is positioned and fixed.
b. The circumference cutting machine has two independent rotation acting directions of horizontal circumferential rotation and self-rotation of the saw blade rotating shaft. The circumference cutting machine takes the circumference center of the well cover as a rotation center and is provided with a fixed structure so that the circumference cutting machine does not horizontally and vertically move when rotating.
c. The saw blade rotating shaft is upwards biased by 45 degrees and downwards biased by 5 degrees by taking the horizontal as a reference, namely, swings in the vertical direction by taking-5-50 degrees as a swinging angle, and simultaneously axially rotates according to rated power;
d. after the saw blade shaft rotates, the saw blade starts to cut the road surface, the saw blade rotating shaft swings downwards to a specified stroke to stop vertical swing, and the horizontal circumferential rotation starts to perform circumferential cutting;
e. the cut pavement is stripped by a lifter in a cutting area.
Preferably, in the step c, the swinging angle of the saw blade rotating shaft is 0-45 degrees based on the horizontal.
Preferably, in the step c, the swinging angle of the saw blade rotating shaft is 0-30 degrees based on the horizontal.
The technical scheme of the invention is further improved as follows: when the saw blade rotating shaft swings, the horizontal is used as a reference,
by adopting the technical scheme, the invention has the following technical effects:
a spherical arc diamond saw blade processing method and its application scheme, which can realize circular arc surface cut by 360 degree rotation around well cover, and uses lifter to peel off cutting area, without using breaking tool, to obtain reasonable stress condition after filling repair material, to improve maintenance and repair quality of inspection well periphery area.
A method for laser welding a tool bit on an inclined/arcuate surface is provided, which is of reference value for the manner in which irregular surface welding objects are welded.
The novel cutting method for maintaining the peripheral pavement of the well lid is high in cutting efficiency, other breaking and disassembling tools are not needed, and impact on the well ring and damage to the peripheral pavement structure are reduced in the cutting process. Meanwhile, the cutting surface is arc-shaped, the repairing material has more reasonable stress condition after repairing, and the repairing material has longer service life, so that the repairing material is damaged by the pressure applied by the vehicle as small as possible, thereby prolonging the durability of the repaired pavement and further prolonging the repairing period.
Drawings
FIG. 1 is a schematic view of a finished spherical arcuate diamond saw blade;
FIG. 2 is a spherical arcuate diamond saw blade substrate;
FIG. 3 is a spherical arc diamond saw blade bit
FIG. 4 is a schematic view of a stamping die structure prior to the stamping process;
FIG. 5 is a schematic drawing of the stamping result after the stamping process;
FIG. 6 is a schematic diagram of a welding tool for a base body and a tool bit;
FIG. 7 is a schematic view of the front welding of a base to a tool bit;
FIG. 8 is a schematic view of the reverse side welding of a base to a tool bit;
FIG. 9 is a schematic view of a spherical arcuate diamond saw blade cutting scheme;
fig. 10 is a schematic diagram showing the comparison of the cutting effect of a spherical arc-shaped diamond saw blade and a conventional planar saw blade.
The novel diamond saw blade comprises a base body, 2, a tool bit, 3, a finished spherical arc diamond saw blade, 4, a stamping die, 6, a circumference cutting machine, 7, a damaged pavement cutting block, 12, a tool bit welding structure, 13, a base body water gap structure, 14, a base body plane structure, 141, an auxiliary assembly hole, 142, a rotor assembly hole, 15 and a base body spherical arc; 21. the turbine structure of the outer end face of the cutter head, 22 and the arc-shaped welding surface of the cutter head; 41. the tool comprises an upper punch, 42, a lower punch, 51, a magnet, 52, a tool module, 521, a magnet round block placing groove, 522, a tool bit placing groove, 523, an arc-shaped structure, 524, a step plane, 61, a horizontal shaft of a circumference cutting machine, 71, a cutting seam, 8 and a well cover.
Detailed Description
The invention is further described in detail below with reference to the attached drawings and specific examples:
the invention discloses a processing and cutting method of a spherical arc diamond saw blade, which is applied to the field of road traffic engineering, in particular to a processing method of a cutting tool of concrete, asphalt and the like or mixed materials thereof and an application scheme thereof. The following are specific examples:
the invention relates to a processing method of a spherical arc diamond saw blade, which mainly comprises the processes of manufacturing a base body, manufacturing a tool bit, welding the base body and the tool bit, and the like. As shown in fig. 1, the finished arc-shaped diamond saw blade 3 is formed by welding a base body 1 and a tool bit 2 in a laser welding mode.
The first step: the manufacturing process of the matrix mainly comprises four main working procedures of punching, heat treatment, machining and laser cutting of the round steel sheet with the holes.
As shown in fig. 2, the structure of the substrate 1 is in a spherical arc shape 15, the size of the substrate is designed according to the use requirement, the substrate can be processed by stamping, machining and other modes, and the performance of the substrate is ensured by post-treatment processes such as heat treatment and the like; the base 1 has a base planar structure 14 for assembly with a cutter; the further planar base structure 14 has rotor mounting holes 142 for mounting with a cutter; the further basal plane structure 14 is provided with auxiliary assembly holes 141, and the size, the position and the like of the auxiliary assembly holes can be set or not according to factors such as cutting power, assembly and the like; the matrix 1 is provided with matrix water gap structures 13 which are uniformly distributed on the circumference of the matrix 1, and the size and the number and the shape of the matrix water gap structures can be changed according to the requirements.
The main processing process of the matrix is as follows:
and (3) stamping: the upper punch 41, the lower punch 42 and the central hole round steel sheet matrix 1 participate. In which the central hole of the base body 1 is placed into the positioning rod of the lower punch 42. The upper punch 41 is pressed down with a certain pressure until the base body is completely fitted to the punch cavity, and is taken out after the punching is completed. The base body 1 is stamped and then is circumferentially provided with an arc-shaped structure, so that a primary structure of a spherical arc 15 of the base body is formed.
The stamping die is as shown in fig. 4 and 5: the upper punch 41 is of a cylindrical structure, a cavity matched with the target stamping part is arranged in the upper punch, the central area of the upper punch is of a planar structure, and a guide rod hole matched with a guide rod of the lower punch 42 is formed in the center of the upper punch; the lower punch 42 has a profile matching the upper punch with a guide rod in the center.
After the primary structure of the spherical arc is formed by stamping, the following heat treatment process is carried out: the substrate 1 is subjected to heat treatment to remove the stamping internal stress; further machining process: carrying out size correction on the substrate 1 through machining after heat treatment; further laser cutting process: after machining the substrate 1, the substrate nozzle structure 13 is formed by circumferential laser cutting.
And a second step of: the cutter head 2 is a cutter head containing diamond components, the thickness of the cutter head is larger than that of the matrix, and the size of the cutter head can be designed according to the use requirement; the cutter head 2 is of a welding surface arc-shaped structure 22, and the radius of the inner end of the cutter head 2 is matched with the radius of the outer end of the matrix 1, so that correct welding is ensured; the outer end face of the cutter head 2 is provided with turbine structures 21, and the turbine structures are uniformly distributed on the circumference of the arc-shaped edge of the outer end face of the cutter head, so that friction is reduced, cutting speed is increased, and the appearance, the number, the distribution mode and the like of the cutter head can be designed into other forms according to use requirements.
And a third step of: the base body and the tool bit are welded, the base body 1 and the tool bit 2 are welded into a whole in a welding mode of laser welding, oxy-acetylene brazing, high-frequency welding and the like, wherein the laser welding has the highest comprehensive performance, the laser welding can achieve higher machining precision by matching with the tool, the laser welding for the spherical base body and the diamond is a preferential welding mode, and the welding result is uniformly distributed in the circumferential direction as shown in figure 1. The welding fixture adopts a combined structural component, as shown in fig. 6, and specifically comprises a magnet 51 and a fixture module 52. The magnet 51 is of a columnar structure with a certain diameter and thickness, is embedded into the tooling module 52, does not slide relatively with the tooling module 52 in a working state, and meets certain adsorption requirements by magnetic force; the tooling module 52 has certain rigidity and appearance and is square as a whole; the tool module is provided with an arc-shaped structure 523, and the contact surface of the welding tool and the welding matrix is an arc-shaped surface in a side view, and the radian of the arc-shaped surface is matched with the radian of the welding matrix; a magnet round block placing groove 521 with a certain depth is arranged on one side of the tooling module 52; the other side of the tooling module 52 is also provided with a tool bit placing groove 522, which has a certain depth and a certain width, wherein the depth is determined by the height of the side gap between the tool bit and the substrate, the width is determined by the height of the tool bit, and the length is determined by the length of the tool bit; outside of the bit placement groove 522 is a stepped plane 524 with a certain height, which serves to assist in fixing and positioning the bit.
Description of welding process: as shown in fig. 7, a tool bit is placed in the tool bit placing groove 522, the tool bit is absorbed outside the matrix, the tool bit is adjusted to a proper position, the laser head is aligned to the position near the joint of the tool bit and the matrix according to a specified angle, power, position and the like for welding, and the operation is repeated until the front welding is finished; the reverse side weld is performed in a completely similar manner until the weld is completed, as shown in fig. 8.
The welding results are shown in figures 1, 7 and 8 and are characterized by uniform circumferential distribution; the further cutter head 2 is in arc surface contact welding with the base body 1, the thickness of the cutter head is larger than that of the base body, side gaps are formed on two sides of the cutter head and the base body, and the side gaps are characterized in that the inner sides are slightly larger than the outer sides, as shown in fig. 1; the top edge and the side edge of the cutter head 2 need to be sharpened after further welding so as to ensure cutting performance.
The cutting application scheme of the spherical arc-shaped diamond saw blade is shown in fig. 9, which is a schematic diagram of the cutting scheme of the spherical arc-shaped diamond saw blade:
1. the circumference cutting machine 6 is provided with an arc-shaped saw blade 3 and is positioned and fixed;
2. the circumference cutting machine has two independent rotation acting directions of horizontal circumferential rotation and self-rotation of the saw blade rotating shaft. The circumference cutting machine takes the circumference center of the well cover as a rotation center and is provided with a fixed structure so that the circumference cutting machine does not horizontally and vertically move when rotating;
3. the saw blade rotating shaft is at a certain angle, can be upwards biased by 50 degrees and downwards biased by 5 degrees by taking the horizontal as a reference, namely-5-50 degrees, and swings at a preferential swinging angle of 0-45 degrees, optimally 0-30 degrees, and simultaneously axially rotates according to rated power; simultaneously, axially rotating according to rated power;
4. after the saw blade shaft rotates, the saw blade starts to cut the road surface, the saw blade rotating shaft swings downwards to a specified stroke to stop vertical swing, and the horizontal circumferential rotation starts to perform circumferential cutting;
5. the cut broken road surface cutting block 7 is peeled off in the cutting area by a lifter.
After the spherical arc-shaped diamond saw blade 3 enters the stable cutting stage, the cutting effect is as shown in fig. 9 and 10 (longitudinal section), the cutting slit 71 is in the same arc shape as the arc surface of the diamond saw blade 3, and the cutting slit 71 is circular in a top view.
The purpose of repairing by using the spherical arc diamond saw blade cutting scheme is that the repairing material has longer service life, so that the repairing material is damaged by the pressure applied by the vehicle as small as possible.
In fig. 10, F1 is a vehicle applied pressure, F2 is a relative friction pressure, and F3 is a mutual friction pressure.
Fig. 10 is a graph comparing the cutting effect of the conventional plane saw blade, and the left side is a schematic diagram showing the stress after the filling repair material in the broken area after cutting. The pressure applied by the vehicle is vertical pressure, and the repairing area only has relative friction force in the vertical direction with the surrounding pavement, so that the friction force is small, and under the condition, the material of the repairing area is weak in combination with the material of the original area, and is easy to deform and sink under compression; the right side of the diagram is a stress schematic diagram after the spherical arc-shaped cutting piece is cut and repaired, vertical pressure applied by a vehicle to the repair material is decomposed into vertical and horizontal directions on an arc-shaped cutting surface, so that the relative friction force direction of the vertical pressure is tangential to an arc-shaped excircle.
Claims (6)
1. The processing method of the spherical arc diamond saw blade is characterized by comprising the following processing steps of manufacturing a base body, manufacturing a tool bit and welding the base body and the tool bit:
a. the manufacturing method comprises the steps of manufacturing a substrate, wherein the substrate structure is in a spherical arc structure, and the middle part of the spherical surface of the substrate is in a plane structure and is used for being assembled with a cutting machine; the center of the plane structure is provided with an assembly hole for being assembled with a cutting machine; an auxiliary assembly hole is arranged beside the assembly hole; the edge of the spherical surface of the base body is of a water gap structure, and the spherical surface of the base body is uniformly distributed on the circumference of the arc-shaped edge of the spherical surface of the base body; the manufacturing process of the matrix comprises the steps of stamping a round steel sheet with holes, removing stamping internal stress by using a heat treatment process, carrying out size correction by machining after heat treatment, and forming a water gap structure by circumferential laser cutting after the matrix machining;
b. the cutter head is manufactured, the cutter head contains diamond components, and the thickness of the cutter head is larger than that of the matrix; the cutter head is of an arc-shaped structure, and the radius of the inner end of the cutter head is matched with the radius of the outer end of the basal body, so that correct welding is ensured; the outer end face of the cutter head is provided with a turbine structure, and the turbine structure is uniformly distributed on the circumference of the arc-shaped edge of the outer end face of the cutter head, so that friction is reduced, and cutting speed is increased;
c. the base body is welded with the cutter head, the cutter heads are welded with the base body in a contact manner through arc surfaces, the cutter heads are uniformly distributed in the circumferential direction, the thickness of the cutter heads is larger than that of the base body, and the side clearance between the cutter heads and the inner side of the cambered surface of the base body after welding is larger than that between the cutter heads and the outer side of the cambered surface of the base body; the laser head is aligned to the joint of the cutter head and the matrix according to the specified angle, power and position for welding, the operation is repeated until the front welding is finished, and the back welding is carried out by a similar method until the back welding is finished;
d. the cutter head is edged after welding, and the top edge and the side edge of the cutter head are required to be edged after welding so as to ensure cutting performance.
2. The method for machining the spherical arc diamond saw blade according to claim 1, wherein a stamping die is used for stamping the round steel sheet with holes in the manufacture of the substrate, the stamping die comprises an upper die punch and a lower die punch, the upper die punch is of a cylindrical structure, a cavity matched with a target stamping part is formed in the upper die punch, the central area of the upper die punch is of a planar structure, a guide rod hole matched with a guide rod of the lower die punch is formed in the center of the upper die punch, the lower die punch is of an appearance matched with the upper die punch, and the guide rod is arranged in the center of the lower die punch.
3. The method for machining the spherical arc-shaped diamond saw blade according to claim 1, wherein a welding tool is adopted for welding the base body and the tool bit, the welding tool is of a combined structure and comprises a tool module and a magnet, a magnet placing groove is formed in one side of the tool module, a welding tool bit placing groove is formed in the other side of the tool module, a step plane is formed in the outer side of the welding tool bit placing groove and used for assisting in fixing and positioning the tool bit, a contact surface between the tool and the welding base body on the tool module is an arc-shaped surface, the radian of the arc-shaped surface is matched with that of the welding base body, and the magnet is embedded into the magnet placing groove on the tool module and does not slide relatively in a working state.
4. The method of claim 1, wherein the tool tip thickness is greater than 0.001 mm to 2mm of the substrate thickness.
5. A method of cutting a spherically curved diamond saw blade machined according to the method of claims 1 to 4, comprising the steps of:
a. the circular cutting machine is provided with an arc saw blade and is positioned and fixed;
b. the circumference cutting machine has two independent rotation acting directions of horizontal circumferential rotation and self-rotation of the saw blade rotating shaft, takes the circumference center of the well lid as the rotation center, and has a fixed structure so that the circumference cutting machine does not horizontally and vertically move during rotation;
c. the saw blade rotating shaft is upwards biased by 45 degrees and downwards biased by 5 degrees by taking the horizontal as a reference, namely, swings in the vertical direction by taking-5-45 degrees as a swinging angle, and simultaneously axially rotates according to rated power;
d. after the saw blade shaft rotates, the saw blade starts to cut the road surface, the saw blade rotating shaft swings downwards to a specified stroke to stop vertical swing, and the horizontal circumferential rotation starts to perform circumferential cutting;
e. the cut pavement is stripped by a lifter in a cutting area.
6. The method of claim 5, wherein the rotation axis of the saw blade in the step c swings at an angle of 0 ° to 30 ° with respect to the horizontal.
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| DE4205840A1 (en) * | 1992-02-26 | 1993-09-02 | Kress Elektrik Gmbh & Co | Spindle lock for hammer drill with chisel function - is effected by bringing sliding gear cluster of spindle drive transmission into mesh with teeth of locking segment fixed to housing |
| JP2007160910A (en) * | 2005-12-15 | 2007-06-28 | Shigemasa Kametaki | Free cut saw |
| KR100952069B1 (en) * | 2009-08-25 | 2010-04-21 | 태평림건설 주식회사 | Apparatus for cutting road surface to repair a manhole |
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| KR20150066851A (en) * | 2013-12-09 | 2015-06-17 | 미래피앤씨(주) | Manhole repair road pavement cutting device and method using the same manhole repair |
| CN107059927A (en) * | 2017-01-03 | 2017-08-18 | 合肥市华阳工程机械有限公司 | A kind of sphere inspection shaft repair machine |
| CN206916597U (en) * | 2017-04-14 | 2018-01-23 | 丁武轩 | A kind of environment-friendly type concrete highway pavement grooving machine |
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