A precision saw blade laser cutting equipment

Abstract

The present invention relates to the field of laser cutting technology, specifically to a precision saw blade laser cutting device, comprising a device body, a laser head, a base, a support frame, a support mechanism, a positioning rod, an inner plate, an outer plate, and an extension mechanism, wherein the laser head is installed on the device body, the base is located below the device body, the support frame is installed above a storage table, the support mechanism is installed on the support frame, the positioning rod is located on the top of the support frame, and the inner plate and the outer plate are both installed on the support frame. By setting a support seat equal to the size of a saw blade to be processed, when laser cutting is performed on the saw blade base, the pressure brought by the high-temperature gas during laser cutting can be used to drive the pressure balance of the inner and outer circles of the saw blade edge. At the same time, after the processing is completed, the finished saw blade can be quickly separated from the saw blade base by the reset of the spring, thereby improving the processing efficiency and yield rate of the precision saw blade.

Description

Technical Field

[0001] The invention relates to the technical field of laser cutting, in particular to a precision saw blade laser cutting device. Background Art

[0002] Precision saw blade laser cutting equipment is a kind of equipment that uses laser beam as cutting tool, and accurately controls the moving path and power density of laser beam through computer, so as to achieve precision cutting of saw blade and other materials. This equipment combines the high precision, high speed and flexibility of laser technology with the accuracy of computer control, providing unprecedented precision and efficiency for cutting saw blade and other materials; During the manufacturing process of the saw blade base, the plate needs to be laser cut to produce a saw blade base with saw teeth. However, the support of the plate needs to keep sufficient space under the saw blade to avoid damage to the support caused by laser cutting. Therefore, several empty grooves will be left on the surface of the support. However, the laser cutting process uses a laser to melt the surface of the substrate, and then removes it under the action of high-pressure gas. During this process, the high-pressure gas will exert a certain pressure on this part of the saw blade substrate. During the saw blade formation process, the laser cutting is performed around the edge of the saw blade. At this time, the local pressure of the saw blade base will be too large, which will cause the precision saw blade to deflect during the laser cutting process, making it difficult to ensure the yield of the precision saw blade. At the same time, during the laser cutting process, the molten iron chips will splash everywhere under the action of the high-pressure gas, which will cause environmental pollution and even personal injury on the one hand, and on the other hand, the splashing iron chips will affect the progress of laser cutting. The iron chips will damage the edge of the processed saw blade or the saw blade base to be processed, further affecting the yield of the precision saw blade. In order to solve the above problems, the prior art proposes a variety of solutions, such as providing a collection trough to collect iron filings, or fixing and clamping the saw blade base through a clamping mechanism, thereby avoiding local deformation of the saw blade base caused by pressure. However, in this process, the precision saw blade is difficult to remove after laser cutting, and the deflected saw blade will cause the edges and corners of the precision saw blade that has just been cut to be damaged, thereby affecting the yield of the precision saw blade.

[0003] Based on this, in order to solve the problem that it is difficult to maintain pressure balance at each cutting point of the precision saw blade during laser cutting, and to be able to take it out quickly after completion to ensure the yield of the precision saw blade, the present invention designs a precision saw blade laser cutting equipment. Summary of the invention

[0004] The present invention provides a precision saw blade laser cutting device, which solves the problem that it is difficult to maintain pressure balance at each cutting point of the precision saw blade during laser cutting and to be able to quickly take it out after completion to ensure the yield of the precision saw blade; by setting a support seat equal to the size of the saw blade to be processed, and then when laser cutting is performed on the saw blade base, the pressure brought by the high-temperature gas during laser cutting can be used to drive the pressure balance between the inner and outer circles of the saw blade edge, and at the same time, after the processing is completed, the spring can be used to quickly separate the completed saw blade from the saw blade base, thereby improving the processing efficiency and yield of the precision saw blade.

[0005] In order to achieve the above object, the present invention provides the following technical solutions: A precision saw blade laser cutting device provided by the present invention includes a device body, a laser head, a base, a support frame, a support mechanism, a positioning rod, an inner plate, an outer plate, and an extension mechanism, wherein the laser head is installed on the device body, the base is located below the device body, the support frame is installed above the storage table, the support mechanism is installed on the support frame, the positioning rod is located on the top of the support frame, the inner plate and the outer plate are both installed on the support frame, the inner plate and the support frame are rotatably connected, and in the initial state, the inner plate and the outer plate fit each other, and the positioning rod is squeezed to drive the outer plate to expand outward and the inner plate to gather inward, the outer plate and the inner plate support the laser cutting part through the support mechanism, and the outer plate and the inner plate form a protective channel, thereby directionally collecting iron filings brought by laser cutting, thereby improving the efficiency and quality of precision saw blade laser cutting.

[0006] Preferably, the arc length of the outer plate is 1 / 4 of the circumference of the saw blade, and the inner plate is rotatably connected to the support frame. The free ends of adjacent inner plates fit together when gathered. On the one hand, they can support the inner and outer points of the point to be processed, so that the point to be processed always maintains a balanced pressure, thereby avoiding the position deviation of the saw blade substrate under the action of high-pressure gas blowing, thereby causing the precision saw blade to deviate during processing. On the other hand, the iron filings generated by laser cutting can be passed through the outer plate and the inner plate in the form of a "channel" and transferred to the bottom for directional collection.

[0007] Preferably, the supporting mechanism comprises a compression spring, an extrusion ring, a push block, a return spring, a connecting rod, a fixed ring, and a torsion spring, wherein the compression spring is located at the center position of the supporting frame, the bottom of the positioning rod is connected to the compression spring, the extrusion ring is located at the bottom end of the positioning rod, the push block is installed on the supporting frame, the extrusion block and the push block are wedge-shaped matched, the push block is connected to the outer plate, the return spring is installed between the push block and the supporting frame, the connecting rod is installed between the outer plate and the inner plate, the fixed ring is installed on the supporting frame, the fixed ring is rotatably connected to the inner plate, the torsion spring is installed on the fixed ring, and the torsion spring is installed at the connection between the fixed ring and the inner plate. On the one hand, it can collect iron filings brought by laser cutting, and on the other hand, it can conduct solid heat between the inner plate and the outer plate. The connection between the fixed ring and the inner plate here is: there is a ring buckle under the inner plate, which is rotatably connected to the fixed ring through the torsion spring, and there is a protrusion under the ring buckle, which is used to be hinged with the connecting rod, and then the inner plate can be driven to rotate under the action of the connecting rod.

[0008] Preferably, the extension mechanism includes an inner groove and a baffle, the inner groove is opened at the inner edge of the outer plate side wall, the baffle is installed on the inner edge of the other side wall of the outer plate, and the baffle is located in the inner groove. On the one hand, it can increase the supporting area of ​​the top for the saw blade base plate, and on the other hand, it can ensure that the outer plate can be shielded to a certain extent by the baffle after being unfolded, thereby allowing iron filings and hot gases to flow downward along the complete ring.

[0009] Preferably, the inner plate is initially higher than the outer plate, and the circumference of the inner plate at the initial position is equal to the circumference of the saw blade to be processed. The inner plate can lift the precision saw blade upward while resetting, so that the precision saw blade is in a ring shape and is pushed upward, avoiding the problem of single-point extrusion causing the precision saw blade to be difficult to remove.

[0010] Preferably, a corrugated layer is installed between adjacent outer panels, and the inner surface of the corrugated layer is coated with a wear-resistant heat-absorbing coating, so that the corrugated layer can come into contact with iron filings that are adhered to the corrugated layer or the outer wall of the inner panel due to iron filings splashing after unfolding, and the iron filings on the surface of the corrugated layer can be removed by folding and unfolding.

[0011] Preferably, a spherical groove is provided at the top of the positioning rod, and a rubber sealing gasket is installed at the edge of the spherical groove. When a saw blade without a hole in the center is produced, the saw blade will squeeze the rubber sealing gasket downward. Initially, the gas in the spherical groove will overflow from the non-squeezed side, and the spherical groove will gradually produce a certain adsorption effect on the saw blade (a specific sealing gasket structure can be set there, such as an airbag with a one-way valve). After the cutting is completed, the saw blade can be adsorbed on the positioning rod at this location to achieve protection for the saw blade.

[0012] Preferably, the support frame includes a support rod and a support seat, the top of the support frame is a conical surface, and the support seat is detachably connected to the base. The top of the support rod is set to be a conical surface, so that the fallen iron filings will fall downward along the inclined surface of the conical surface, and at the same time, a part of the iron filings flying upward will be blocked by the bottom plane of the support rod.

[0013] Preferably, the inner plate is an arc that bends inwardly, and protrusions are installed on the outer surface of the inner plate and the inner surface of the outer plate. The protrusions can block the iron filings from flying below, and the iron filings are blocked by the shielding block above, so that the iron filings will not fly upward, thereby improving the collection efficiency of the iron filings. In addition, the protrusions can also enhance the heat dissipation effect.

[0014] Preferably, the protrusions are arranged in a staggered manner, and a blocking block is installed on the top of the outer plate. The staggered arrangement of the protrusions can avoid interfering with each other when merged, and at the same time can contact each other, thereby making the remaining iron filings contact each other.

[0015] The beneficial effects of the present invention are as follows: 1. The present invention proposes a precision saw blade laser cutting device. When cutting the saw blade substrate, high-pressure gas blows the substrate downward through the laser head and squeezes the positioning rod. After the positioning rod is squeezed, it drives the outer plate to expand outward and the inner plate to gather inward, thereby driving the support frame to present two different states. Under the action of the supporting mechanism and the stretching mechanism, the precision saw blade can be cut. At the same time, the state of the precision saw blade changes during cutting, so that the pressure inside and outside the edge of the precision saw blade is kept equal during cutting. At the same time, the outer plate and the inner plate can be used to form a protective channel, thereby directionally collecting iron filings caused by laser cutting, thereby improving the efficiency and quality of precision saw blade laser cutting.

[0016] 2. The present invention proposes a precision saw blade laser cutting equipment, which drives the support mechanism through a positioning rod, and the support mechanism drives the outer plate to move outward; under the action of the support mechanism and the extension mechanism, the outer plate can synchronously drive the inner plate to gather inward, and the top of the inner plate is folded inward, thereby forming a complete support ring, which can support the inner and outer points of the point to be processed, so that the point to be processed always maintains a balanced pressure, thereby avoiding the position deviation of the saw blade base plate under the action of high-pressure gas blowing, thereby causing the precision saw blade to deviate during processing, and on the other hand, the iron chips generated by laser cutting can be passed through the outer plate and the inner plate in the form of a "channel" and transferred to the bottom for directional collection, thereby avoiding the splash of iron chips and improving the protection of saw blade laser cutting.

[0017] 3. The present invention proposes a precision saw blade laser cutting equipment. When the high-pressure gas squeezes the saw blade base plate, the base plate drives the positioning rod to squeeze the compression spring downward, and synchronously drives the extrusion ring to move downward. When the extrusion ring moves downward, it drives the push block to move toward the outer ring through the wedge-shaped cooperation. The push block drives the outer plate connected to it to move toward the outer ring. At this time, the push block will synchronously drive the connecting rod to move outward, and the connecting rod is connected to the fixed ring. At this time, the push block drives the connecting rod to rotate around the fixed ring through the sliding groove, and then drives the other end of the connecting rod to be squeezed toward the inner ring, and then drives the inner plate connected to the other end of the connecting rod to fold toward the inner ring. As the inner plate folds, the free ends of the inner plate gradually press against each other, thereby forming a ring shape, and then the inner plate and the outer plate form two support rings, and also constitute a directional transfer channel. On the one hand, it can collect iron filings brought by laser cutting, and on the other hand, it can conduct heat through the solid of the inner plate and the outer plate, thereby improving the heat dissipation efficiency of laser cutting and improving the yield of precision saw blades. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation mode of the present invention or the technical solution in the prior art, the drawings required for use in the specific implementation mode or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are one implementation mode of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the support frame of the present invention; Figure 3 It is a usage diagram of the support mechanism of the present invention; Figure 4 yes Figure 3 The enlarged view of point A in the middle; Figure 5 It is a schematic diagram of the connecting rod of the present invention; Figure 6 is a schematic diagram of the extension mechanism of the present invention; Figure 7 It is a schematic diagram of the spherical groove in the present invention; Figure 8 It is a schematic diagram of the protrusion of the present invention; Fig. 9 It is a schematic diagram of the outer plate and the inner plate of the present invention.

[0020] In the figure: 1. Equipment body; 2. Laser head; 3. Base; 4. Support frame; 41. Support rod; 411. Conical surface; 42. Support seat; 5. Support mechanism; 51. Compression spring; 52. Extrusion ring; 53. Push block; 54. Reset spring; 55. Connecting rod; 56. Fixed ring; 57. Torsion spring; 6. Positioning rod; 61. Spherical groove; 62. Sealing gasket; 7. Inner plate; 71. Protrusion; 8. Outer plate; 81. Corrugated layer; 82. Blocking block; 9. Extension mechanism; 91. Inner groove; 92. Baffle. DETAILED DESCRIPTION

[0021] In order to better understand the above solution, the above technical solution is described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] like Figure 1 , 2 As shown in Figure 9, a precision saw blade laser cutting device provided by the present invention includes a device body 1, a laser head 2, a base 3, a support frame 4, a support mechanism 5, a positioning rod 6, an inner plate 7, an outer plate 8, and an extension mechanism 9. The laser head 2 is installed on the device body 1, the base 3 is located below the device body 1, the support frame 4 is installed above the storage table, the support mechanism 5 is installed on the support frame 4, the positioning rod 6 is located on the top of the support frame 4, the inner plate 7 and the outer plate 8 are both installed on the support frame 4, and in the initial state, the inner plate 7 and the outer plate 8 are in contact with each other, and the positioning rod 6 is squeezed to drive the outer plate 8 to expand outward and the inner plate 7 to gather inward, and the outer plate 8 and the inner plate 7 support the laser cutting part through the support mechanism 5.

[0023] When laser cutting of saw blades is required, the precision saw blade substrate is placed above the base 3 of the equipment platform. When the saw blade substrate is cut, high-pressure gas blows the substrate downward through the laser head 2 and squeezes the positioning rod 6. After squeezing, the positioning rod 6 drives the outer plate 8 to expand outward and the inner plate 7 to gather inward, thereby driving the support frame 4 to present two different states. Under the action of the supporting mechanism 5 and the stretching mechanism 9, the cutting of the precision saw blade is realized. At the same time, the state of the precision saw blade changes during cutting, so that the pressure inside and outside the edge of the precision saw blade is kept equal during cutting. At the same time, the outer plate 8 and the inner plate 7 can be used to form a protective channel, thereby directionally collecting iron filings brought by laser cutting, thereby improving the efficiency and quality of laser cutting of precision saw blades.

[0024] like Figure 2 As shown, as a specific embodiment of the present invention, the arc length of the outer plate 8 is 1 / 4 of the circumference of the saw blade, the inner plate 7 is hinged to the support frame 4, and the free ends of adjacent inner plates 7 fit together when gathered.

[0025] The outer plate 8 and the inner plate 7 are initially located at the edge of the position of the circumference of the saw blade to be processed, and the initial arc length of the outer plate 8 is 1 / 4 of the circumference of the saw blade. When the precision saw blade is performing laser cutting, the support mechanism 5 is driven by the positioning rod 6, and the support mechanism 5 drives the outer plate 8 to move outward; when the outer plate 8 moves outward, the outer plate 8 moves laterally along the axis, that is, the outer plate 8 does not rotate, and the outer plate 8 cannot rotate to fully support the outer periphery of the saw blade. Under the action of the support mechanism 5 and the extension mechanism 9, the outer plate 8 can synchronously drive the inner plate 7 to The inner plate 7 is gathered together, and the top end of the inner plate 7 is folded inward to form a complete support ring, which can support the inner and outer points of the point to be processed, so that the point to be processed always maintains a balanced pressure, thereby avoiding the deviation of the saw blade base plate under the action of high-pressure gas blowing, and causing the precision saw blade to deviate during processing; on the other hand, the iron filings generated by laser cutting can be transferred to the bottom through the outer plate 8 and the inner plate 7 in the form of a "channel" for directional collection, thereby avoiding the splash of iron filings and improving the protection of saw blade laser cutting.

[0026] like Figure 2-4 As shown, as a specific embodiment of the present invention, the support mechanism 5 includes a compression spring 51, an extrusion ring 52, a push block 53, a return spring 54, a connecting rod 55, a fixed ring 56, and a torsion spring 57. The compression spring 51 is located at the center of the support frame 4, the bottom of the positioning rod 6 is connected to the compression spring 51, the extrusion ring 52 is located at the bottom end of the positioning rod 6, the push block 53 is installed on the support frame 4, the extrusion block and the push block 53 are wedge-matched, the push block 53 is connected to the outer plate 8, the return spring 54 is installed between the push block 53 and the support frame 4, the connecting rod 55 is installed between the outer plate 8 and the inner plate 7, the fixed ring 56 is installed on the support frame 4, the fixed ring 56 is rotatably connected to the inner plate 7, the torsion spring 57 is installed on the fixed ring 56, and the torsion spring 57 is installed at the connection between the fixed ring 56 and the inner plate 7.

[0027] When the high-pressure gas squeezes the saw blade base plate, the base plate drives the positioning rod 6 to squeeze the compression spring 51 downward, and synchronously drives the squeezing ring 52 to move downward. When the squeezing ring 52 moves downward, it drives the push block 53 to move toward the outer circle through the wedge-shaped cooperation. The push block 53 drives the outer plate 8 connected thereto to move toward the outer circle. At this time, the push block 53 will synchronously drive the connecting rod 55 to move outward, and the connecting rod 55 is connected to the bottom of the inner plate 7. Then, the push block 53 drives the connecting rod 55 to move outward. At this time, the other end of the connecting rod 55 is slidably connected to the outer plate 8 (the connecting rod 55 is always located inside the outer plate 8, but can slide up and down along the outer plate 8). , and then the connecting rod 55 pulls the bottom of the inner plate 7 to move outward, the inner plate 7 will rotate around the fixed ring 56, and the top of the inner plate 7 will fold toward the center inner circle. As the inner plate 7 folds, the free ends of the inner plate 7 gradually press against each other to form a ring shape, and then the inner plate 7 and the outer plate 8 form two support rings, and also constitute a directional transfer channel, which can collect iron filings brought by laser cutting on the one hand, and conduct heat through the inner plate 7 and the outer plate 8 on the other hand. Compared with traditional air heat transfer, the fixed heat conduction effect is obviously better than that of gas, thereby improving the heat dissipation efficiency of laser cutting and improving the yield of precision saw blades.

[0028] like Figure 5 As shown, as a specific embodiment of the present invention, the stretching mechanism 9 includes an inner groove 91 and a baffle 92. The inner groove 91 is opened at the inner edge of the side wall of the outer plate 8, and the baffle 92 is installed on the inner edge of the other side wall of the outer plate 8. In the initial position (that is, the outer plate 8 is surrounded by a circular ring), the baffle 92 is located in the inner groove 91, where the baffle 92 is fixed to one side of the outer plate 8. When the outer plate 8 slides outward, if there is no baffle 92, there will be a gap between adjacent outer plates 8. At this time, the baffle 92 can fill the gap between adjacent outer plates 8, and at the same time can enhance the integrity of the multiple outer plates 8, and will not cause a situation where one outer plate 8 moves while the others are stationary, thereby ensuring the uniformity of the pressure.

[0029] In the process of the outer plate 8 moving outward, the outer plates 8 adjacent to each other gradually move away, and at this time, the baffle 92 also slides outward from the inner groove 91, thereby driving the baffle 92 to gradually fill the gap after the outer plate 8 moves outward, thereby ensuring that the baffle 92 can always form a circle (not a circle, but it can fill the gap) after moving outward again. On the one hand, it can increase the support area of ​​the top for the saw blade base plate, and on the other hand, it can ensure that the outer plate 8 forms a complete ring, thereby allowing iron filings and hot gases to flow downward along the complete ring, while improving the heat dissipation effect, it also achieves directional conduction of iron filings, thereby improving the yield of precision saw blades. Of course, after the outer plate 8 is unfolded, since there is a certain gap between the baffle 92 and the inner groove 91, there is a possibility that iron filings will flow out of this gap, but the relatively small amount. If you want to avoid it, you can add a corrugated layer 81 between the inner groove 91 and the baffle 92 (the two ends of the corrugated layer are respectively connected to the adjacent ends of the two outer plates 8), thereby ensuring that the iron filings will not flow out.

[0030] As a specific embodiment of the present invention, the inner plate 7 is initially higher than the outer plate 8, and the circumference of the inner plate 7 at the initial position is equal to the circumference of the saw blade to be processed.

[0031] When the inner plate 7 and the outer plate 8 are combined, the inner plate 7 is slightly higher than the outer plate 8. At this time, the inner plate 7 and the outer plate 8 are both located below the edge of the precision saw blade. After the precision saw blade completes the cutting, the inner plate 7 can lift the precision saw blade upward while resetting, so that the precision saw blade is in a ring shape and is pushed upward, avoiding the problem of single-point extrusion causing the precision saw blade to be difficult to remove, thereby improving the efficiency of laser cutting of the precision saw blade.

[0032] like Figure 6 As shown, as a specific embodiment of the present invention, a corrugated layer 81 is installed between adjacent outer plates 8, and the inner surface of the corrugated layer 81 is coated with a wear-resistant heat-absorbing coating. The two ends of the corrugated layer 81 are respectively connected to two adjacent outer plates 8, so that the corrugated layer 81 can be unfolded when the outer plate 8 is stretched.

[0033] The corrugated layer 81 allows the top of the baffle 92 to be flush with the upper surface of the outer plate 8 under the action of the corrugated layer 81 when the outer plate 8 expands outward. The corrugated layer 81 can also change the space between the outer plate 8 and the top of the inner plate 7. The corrugated layer 81 can play a blocking role when it shrinks to prevent impurities from falling between the outer plate 8 and the inner plate 7. By setting the radial length of the folded corrugated layer 81, it can contact the iron filings adhered to the corrugated layer 81 or the outer wall of the inner plate 7 due to iron filings splashing, and then the iron filings on the outer edge of the top of the inner plate 7 and the lower surface of the blocking block 82 can be removed by folding and unfolding, and the iron filings can be knocked off, thereby improving the cleaning effect of the inner plate 7 and the blocking block 82. The corrugated layer 81 is made of metal. The heat from the laser cutting above will flow from top to bottom along the texture of the corrugated layer 81, and the heat can be better transferred to the bottom. At the same time, the unfolded corrugated layer 81 can increase the heat dissipation surface, thereby improving the heat dissipation effect at the precision saw blade.

[0034] like Figure 7 As shown, as a specific embodiment of the present invention, a spherical groove 61 is formed at the top of the positioning rod 6 , and a rubber sealing pad 62 is installed at the edge of the spherical groove 61 .

[0035] When producing saw blades with center holes, the spherical groove 61 can leave a certain space for laser cutting of the center of the saw blade. Since a reset spring 54 is installed under the positioning rod 6, after the cutting is completed, the reset spring 54 will drive the positioning rod 6 to move upward, and then cooperate with the inner plate 7 to push the precision saw blade upward synchronously, thereby improving the cutting efficiency of the precision saw blade and facilitating the removal of the precision saw blade. At the same time, the rubber sealing pad 62 at this location has a certain compression effect. When producing saw blades without a hole in the center, the saw blade will squeeze the rubber sealing pad 62 downward at this time. Initially, the unilateral squeezing will cause the gas in the spherical groove 61 to overflow from the non-squeezed side, and the spherical groove 61 will gradually produce a certain adsorption effect on the saw blade (the structure of the sealing pad 62 can be specifically set at this location, such as an airbag with a one-way valve). After the cutting is completed, the saw blade can be adsorbed on the positioning rod 6 at this location. After completing the cutting of all saw blades on the substrate, the waste substrate is removed vertically upward, and all completed saw blades are completely adsorbed on the positioning rod 6, thereby improving the cutting efficiency and yield of the precision saw blade.

[0036] As a specific implementation of the present invention, the support frame 4 includes a support rod 41 and a support seat 42 , the top of the support rod 41 is a conical surface 411 , and the support seat 42 is detachably connected to the base 3 .

[0037] The support rod 41 is used to push the push block 53 to push the outer plate 8 to move, and the push block 53 can drive the connecting rod 55 to move, and the connecting rod 55 pulls the inner plate 7 to rotate around the fixed ring 56. Therefore, the support rod 41 is located between the inner plate 7 and the outer plate 8, which will hinder the channel formed by the inner plate 7 and the outer plate 8. Therefore, the top of the support rod 41 is set to be a conical surface 411, and the fallen iron filings will fall downward along the inclined surface of the conical surface 411. At the same time, a part of the iron filings flying upward will be blocked by the bottom plane of the support rod 41, thereby reducing the upward flying of iron filings to damage the edge of the processed saw blade or interfere with the edge being laser cut, thereby improving the yield of precision saw blade laser cutting.

[0038] like Figure 8 As shown, as a specific embodiment of the present invention, the inner plate 7 is an arc shape that bends inward, and the outer surface of the inner plate 7 and the inner surface of the outer plate 8 are provided with protrusions 71. The protrusions 71 on the inner plate 7 and the protrusions 71 on the outer plate 8 are arranged alternately, and a shielding block 82 is provided on the top of the outer plate 8.

[0039] The inner plate 7 bends inward to form a complete annular shape, and can form a collection channel with the outer plate 8 while playing a supporting role. The staggered arrangement of the protrusions 71 can prevent interference with each other when they are merged, but the gap between the adjacent protrusions 71 of the inner plate 7 and the outer plate 8 is smaller than the gap between the iron filings. When there are iron filings remaining, the protrusions 71 close to each other will squeeze out the iron filings, and then remove the remaining iron filings after opening again, thereby preventing the iron filings from adhering for a long time and improving the cleaning effect. At the same time, the protrusions 71 can prevent the iron filings from splashing below, and the iron filings will not fly upwards due to the blocking block 82 above, thereby improving the collection efficiency of the iron filings. In addition, the protrusions 71 can also enhance the heat dissipation effect, thereby improving the laser cutting efficiency of the precision saw blade.

[0040] When the precision saw blade needs to be cut, the staff places the precision saw blade substrate above the base 3 of the equipment platform, and then starts the laser head 2. On the one hand, the laser head 2 emits a high temperature to melt the substrate, and on the other hand, the high-pressure gas blows the impurities of the melted substrate through the laser head 2. At the same time, the high-pressure gas will also drive the substrate to be squeezed downward, and then squeeze the positioning rod 6. A pressure rod can be added here. When the laser head 2 is started, the pressure rod starts to squeeze the substrate synchronously, so that the substrate moves downward, thereby ensuring that the positioning rod 6 can be squeezed downward until the substrate reaches the support frame 4. After the positioning rod 6 is squeezed, it drives the outer plate 8 to expand outward and the inner plate 7 to gather inward, thereby driving the support frame 4 to present two different states. Under the action of the support mechanism 5 and the extension mechanism 9, the cutting of the precision saw blade is realized.

[0041] The base plate drives the positioning rod 6 to squeeze the compression spring 51 downward, and synchronously drives the extrusion ring 52 to move downward. When the extrusion ring 52 moves downward, it drives the push block 53 to move toward the outer ring through the wedge-shaped cooperation. The push block 53 drives the outer plate 8 connected thereto to move toward the outer ring. When the outer plate 8 moves outward, the baffle 92 will separate from the inner groove 91, but it can still cover the gap that should be left between the outer plates 8, and then cooperate with the corrugated layer 81 to make the outer plate 8 form a complete ring. At this time, the push block 53 will synchronously drive the connecting rod 55 to move outward, and the connecting rod 55 is connected to the bottom of the inner plate 7, and then at this time, the push block 53 The connecting rod 55 is driven to move outward. At this time, the other end of the connecting rod 55 is slidably connected to the outer plate 8, and then the connecting rod 55 pulls the bottom of the inner plate 7 to move outward, and the inner plate 7 will rotate around the fixed ring 56, and the top of the inner plate 7 will fold toward the center inner circle. As the inner plate 7 folds, the free ends of the inner plate 7 gradually press against each other to form a ring shape, and then the inner plate 7 and the outer plate 8 form two support rings, and also constitute a directional transfer channel, which can collect iron filings caused by laser cutting on the one hand, and conduct heat through the solid of the inner plate 7 and the outer plate 8 on the other hand, thereby improving the yield and cutting efficiency of the precision saw blade.

[0042] The basic principles and beneficial effects of the present invention are shown and described above. At the same time, the present invention is not limited to the above embodiments. Without departing from the effects and scope of the present invention, the present invention may have various changes and improvements. These changes and improvements all fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A precision saw blade laser cutting device, characterized in that: The invention comprises a device body (1), a laser head (2), a base (3), a support frame (4), a support mechanism (5), a positioning rod (6), an inner plate (7), an outer plate (8), and an extension mechanism (9), wherein the laser head (2) is mounted on the device body (1), the base (3) is located below the device body (1), the support frame (4) is mounted above a storage table, the support mechanism (5) is mounted on the support frame (4), the positioning rod (6) is located at the top of the support frame (4), the inner plate (7) and the outer plate (8) are both mounted on the support frame (4), in an initial state, the inner plate (7) and the outer plate (8) are in contact with each other, and after being squeezed, the positioning rod (6) drives the outer plate (8) to expand outwards and the inner plate (7) to gather inwards, respectively, and the outer plate (8) and the inner plate (7) support the laser cutting part through the support mechanism (5).

2. The precision saw blade laser cutting device according to claim 1, characterized in that: The arc length of the outer plate (8) is 1 / 4 of the circumference of the saw blade, the inner plate (7) is rotatably connected to the support frame (4), and the free ends of adjacent inner plates (7) fit together when gathered.

3. The precision saw blade laser cutting device according to claim 2, characterized in that: The support mechanism (5) comprises a compression spring (51), an extrusion ring (52), a push block (53), a return spring (54), a connecting rod (55), a fixed ring (56), and a torsion spring (57); the compression spring (51) is located at the center of the support frame (4); the bottom of the positioning rod (6) is connected to the compression spring (51); the extrusion ring (52) is located at the bottom end of the positioning rod (6); the push block (53) is installed on the support frame (4); the extrusion block and the push block (53) are connected to each other. ) wedge-shaped fit, the push block (53) is connected to the outer plate (8), the return spring (54) is installed between the push block (53) and the support frame (4), the connecting rod (55) is installed between the outer plate (8) and the inner plate (7), the fixed ring (56) is installed on the support frame (4), the fixed ring (56) is rotatably connected to the inner plate (7), the torsion spring (57) is installed on the fixed ring (56), and the torsion spring (57) is installed at the connection between the fixed ring (56) and the inner plate (7).

4. The precision saw blade laser cutting device according to claim 2, characterized in that: The extension mechanism (9) comprises an inner groove (91) and a baffle (92); the inner groove (91) is opened on the inner edge of the side wall of the outer plate (8); the baffle (92) is installed on the inner edge of the other side wall of the outer plate (8), and the baffle (92) is located at the inner groove (91).

5. The precision saw blade laser cutting device according to claim 4, characterized in that: The inner plate (7) is initially higher than the outer plate (8), and the circumference of the inner plate (7) at the initial position is equal to the circumference of the saw blade to be processed.

6. The precision saw blade laser cutting device according to claim 5, characterized in that: A corrugated layer (81) is installed between adjacent outer plates (8), and the inner surface of the corrugated layer (81) is coated with a wear-resistant heat-absorbing coating.

7. The precision saw blade laser cutting device according to claim 3, characterized in that: A spherical groove (61) is formed at the top end of the positioning rod (6), and a rubber sealing pad (62) is installed at the edge of the spherical groove (61).

8. The precision saw blade laser cutting device according to claim 3, characterized in that: The support frame (4) comprises a support rod (41) and a support seat (42); the top of the support frame (4) is a conical surface (411); and the support seat (42) is detachably connected to the base (3).

9. The precision saw blade laser cutting device according to claim 6, characterized in that: The inner plate (7) is in the shape of an arc that bends inwards, and protrusions (71) are installed on the outer surface of the inner plate (7) and the inner surface of the outer plate (8).

10. The precision saw blade laser cutting device according to claim 9, characterized in that: The protrusions (71) are arranged in a staggered manner, and a blocking block (82) is installed on the top of the outer plate (8).

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