CN113183028A - Planet disc clamp, process for machining diamond-shaped blade by using planet disc clamp and diamond-shaped blade - Google Patents
Planet disc clamp, process for machining diamond-shaped blade by using planet disc clamp and diamond-shaped blade Download PDFInfo
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- CN113183028A CN113183028A CN202110379141.9A CN202110379141A CN113183028A CN 113183028 A CN113183028 A CN 113183028A CN 202110379141 A CN202110379141 A CN 202110379141A CN 113183028 A CN113183028 A CN 113183028A
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- clamp
- pressure
- grinding disc
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- disc
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
- B24B3/36—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses a planetary disc clamp, a process for processing a diamond blade by utilizing the planetary disc clamp and the diamond blade, and belongs to the field of hard alloy blades, wherein the planetary disc clamp comprises a clamp body, a plurality of workpiece placing positions and a plurality of positioning devices, wherein the workpiece placing positions are annularly arranged along a clearance hole; the workpiece placing position comprises a placing cavity and a avoiding hole, the gap between the placing cavity and a workpiece placed in the placing cavity is less than or equal to 0.1mm, the gap between the placing cavity and the workpiece placed in the placing cavity is controlled to be less than or equal to 0.1mm, the periphery of the workpiece and two acute angle tool points can be simultaneously positioned during grinding, and grinding errors caused by the out-of-plane bottom surface are eliminated.
Description
Technical Field
The invention relates to the field of hard alloy cutters, in particular to a planetary disc clamp, a process for machining a diamond-shaped blade by using the planetary disc clamp and the diamond-shaped blade.
Background
The VCGX series aluminum blade is a 35-degree diamond blade, because a counter bore is large, the two tool points are higher in warping relative to the middle part, the fall is more than 0.5mm, the density distribution is seriously uneven after pressing, the deformation of a blank after sintering is very large, the flatness of the bottom surface is more than 0.3mm, when the bottom surface is ground, the two tool points are pressed by a pressing plate and are arranged in a planetary disc for grinding, because the deformation of the bottom surface is large, the height of the two tool points at the position of 145-degree angle of a ground product can be seriously out of tolerance, and the rejection rate is high. The percent of pass is lower than 80%. Therefore, improvement in the process thereof is required.
Disclosure of Invention
The invention aims to solve at least one technical problem in the prior art, and provides a planetary disc clamp, a process for machining a diamond-shaped blade by using the planetary disc clamp and the diamond-shaped blade.
The technical solution of the invention is as follows:
the planet disc clamp comprises a clamp body, wherein the clamp body is provided with a clearance hole and a plurality of workpiece placing positions, and the workpiece placing positions are annularly arranged along the clearance hole; the workpiece placing position comprises a placing cavity and a avoiding hole, and the gap between the placing cavity and a workpiece placed in the placing cavity is less than or equal to 0.1 mm.
Preferably, the placing cavity is a rhombus, the avoiding holes are positioned on four top corners of the rhombus, and the acute angle of the top corners is 30-40 degrees.
Preferably, the avoidance hole is circular, triangular or quadrangular.
Preferably, the clamp body is made of stainless steel.
Preferably, the clamp body is circular, and a gear ring is arranged at the side end of the circular shape to be meshed with a rotating gear of the driving device.
Preferably, an upper grinding disc is further arranged above the clamp body, and a lower grinding disc is arranged below the clamp body.
The invention also discloses a process for processing the diamond-shaped blade by using the planetary disc clamp, wherein a workpiece is placed in the placing cavity, the upper grinding disc and the lower grinding disc are driven to be in contact with the clamp body and apply pressure, the upper grinding disc and the clamp body rotate in the same direction at a different speed under certain pressure, and the lower grinding disc and the planetary disc clamp rotate in the opposite direction, so that the workpiece is ground, and the diamond-shaped blade is prepared.
Preferably, the pressure is at least 5 pressure sections, and the specific P0 is standing for 3 to 5s under the pressure of 100N,
p1 is 200-250N pressure, the upper grinding disc rotates forwards at 30-60rpm, the planetary disc clamp rotates forwards at 20-50rpm, the lower grinding disc rotates backwards at 30-60rpm, and the time is 2-8 s;
p2 is under the pressure of 300-450N, the upper grinding disc rotates forwards at 60-80rpm for 5-10s, the planet disc clamp rotates forwards at 30-60rpm for 2-7s, the lower grinding disc rotates backwards at 70-100rpm for 5-10 s;
p3 is under the pressure of 700-800N, the upper grinding disc rotates forwards at 60-100rpm for 5-10s, the planet disc clamp rotates forwards at 40-80rpm for 3-9s, the lower grinding disc rotates backwards at 100-120rpm for 5-10 s;
p4 is 200-400N pressure, the upper grinding disc rotates forwards at 20-40rpm, the planet disc clamp rotates forwards at 20-30rpm, the lower grinding disc rotates backwards at 20-30rpm, and the time is 3-9 s;
p5 is kept for 3-5s under the pressure of 150-190N.
The invention also discloses a diamond-shaped blade which is manufactured by adopting the process for machining the diamond-shaped blade by utilizing the planetary disc clamp.
The invention has at least one of the following beneficial effects:
(1) according to the planet disc clamp, the gap between the placing cavity and the machined part placed in the placing cavity is controlled to be less than or equal to 0.1mm, the periphery of the workpiece and two acute-angle tool tips can be simultaneously positioned during grinding, and grinding errors caused by the out-of-flatness of the bottom surface are eliminated.
(2) The planet disc clamp is made of stainless steel materials, so that the service life of the planet disc clamp is prolonged, and the phenomenon that the quick abrasion gap of the clamp is enlarged and the double positioning effect is lost is avoided.
(3) According to the process for machining the diamond blade by using the planetary disc clamp, the upper grinding disc and the planetary disc clamp rotate in the same direction at a different speed under a certain pressure, the lower grinding disc and the planetary disc clamp rotate in the opposite direction to grind a machined part, at least 5 pressure sections are used for grinding at the same time, the diamond blade with the opposite side gap smaller than or equal to 0.01mm is manufactured, and the precision is higher.
Drawings
FIG. 1 is a schematic structural view of a planetary disc holder of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is a schematic view of the process for machining a diamond-shaped blade using a planetary disc fixture according to the present invention;
in the figure, 100-clamp body, 101-placing cavity, 102-toothed ring, 103-avoiding hole, 104-avoiding hole avoiding space, 200-upper grinding disc and 300-lower grinding disc.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1 to 3, a preferred embodiment of the present invention:
the planet disk clamp comprises a clamp body 100, wherein clearance holes 104 and a plurality of workpiece placing positions are formed in the clamp body, and the workpiece placing positions are annularly arranged along the clearance holes 104; the workpiece placing position comprises a placing cavity 101 and a avoiding hole 103, and the gap between the placing cavity 101 and a workpiece placed in the placing cavity is less than or equal to 0.1 mm.
According to the planet disc clamp, the gap between the placing cavity and the machined part placed in the placing cavity is controlled to be less than or equal to 0.1mm, the periphery of the workpiece and two acute-angle tool tips can be simultaneously positioned during grinding, and grinding errors caused by the fact that the flatness of the bottom surface is out of tolerance can be eliminated.
As a preferred embodiment of the present invention, it may also have the following additional technical features:
the placing cavity 101 is in a diamond shape, the avoiding holes 103 are located at four vertex angles of the diamond shape, acute angles among the vertex angles are 30-40 degrees, preferably 35 degrees, in specific application, preferably, the vertical distance of opposite sides of the diamond shape is 10.04mm, and the vertical distance of opposite sides of a workpiece is 9.525 +/-0.025 mm.
The avoiding hole 103 is circular, triangular or quadrilateral, preferably circular, so as to avoid impact of the vertex angle of the rhombic blade during processing.
The clamp body 100 is circular, and a gear ring 102 is provided at a side end of the circular shape to be engaged with a rotary gear of a driving device.
The upper grinding disc 200 is arranged above the clamp body 100, the lower grinding disc 300 is arranged below the clamp body, and when the clamp is applied specifically, an oil cylinder for driving the upper grinding disc to move up and down is arranged above the upper grinding disc, and an oil cylinder for driving the lower grinding disc to move up and down is arranged below the lower grinding disc.
The invention also discloses a second embodiment:
the process for machining the diamond-shaped blade by using the planetary disc clamp comprises the steps of putting a machined piece into a placing cavity 101, driving an upper grinding disc 200 and a lower grinding disc 300 to be in contact with a clamp body 100 and applying pressure, carrying out equidirectional differential rotation on the upper grinding disc 200 and the clamp body 100 under certain pressure, and carrying out reverse rotation on the lower grinding disc and the planetary disc clamp to grind the machined piece so as to obtain the diamond-shaped blade. The clamp body is made of Q235 steel.
Example 1
The processing technology is adopted, except that the pressure is 5 pressure sections, and the concrete P0 is kept still for 4s under the pressure of 90N;
p1 is under 226N pressure, the upper millstone rotates forwards at 45rpm, the planetary disk clamp rotates forwards at 30rpm, the lower millstone rotates backwards at 45rpm, and the time is 5 s;
p2 is 470N pressure, the upper grinding disc rotates forwards at 70rpm for 8s, the planet disc clamp rotates forwards at 40rpm for 5s, the lower grinding disc rotates backwards at 90rpm for 8 s;
p3 is under 780N pressure, the upper grinding disc rotates forwards at 80rpm for 8s, the planetary disc clamp rotates forwards at 50rpm for 5s, and the lower grinding disc rotates backwards at 110rpm for 8 s;
p4 is under 320N pressure, the upper millstone rotates forwards at 30rpm, the planetary disc clamp rotates forwards at 25rpm, the lower millstone rotates backwards at 30rpm, and the time is 5 s;
p5 was left at 170N for 4 s.
Example 2
The processing technology is adopted, except that the pressure is 5 pressure sections, and specifically, the P0 is kept still for 5s under the pressure of 120N;
p1 is under 280N pressure, the upper millstone rotates forwards at 45rpm, the planetary disk clamp rotates forwards at 30rpm, the lower millstone rotates backwards at 45rpm, and the time is 5 s;
p2 is at 490N pressure, the upper grinding disc rotates forward at 70rpm for 8s, the planet disc clamp rotates forward at 40rpm for 5s, the lower grinding disc rotates backward at 90rpm for 8 s;
p3 is under 730N pressure, the upper grinding disc rotates forwards at 80rpm for 8s, the planetary disc clamp rotates forwards at 50rpm for 5s, and the lower grinding disc rotates backwards at 110rpm for 8 s;
p4 is under 250N pressure, the upper millstone rotates forwards at 30rpm, the planetary disc clamp rotates forwards at 25rpm, the lower millstone rotates backwards at 30rpm, and the time is 5 s;
p5 was left standing for 3s under 160N pressure.
Example 3
The processing technology is adopted, except that the pressure is 5 pressure sections, and specifically, the P0 is kept still for 3s under the pressure of 130N;
p1 is under 240N pressure, the upper millstone rotates forwards at 45rpm, the planetary disk clamp rotates forwards at 30rpm, the lower millstone rotates backwards at 45rpm, and the time is 5 s;
p2 is 470N pressure, the upper grinding disc rotates forwards at 70rpm for 8s, the planet disc clamp rotates forwards at 40rpm for 5s, the lower grinding disc rotates backwards at 90rpm for 8 s;
p3 is under 790N pressure, the upper millstone rotates forwards at 80rpm for 8s, the planetary disk clamp rotates forwards at 50rpm for 5s, and the lower millstone rotates backwards at 110rpm for 8 s;
p4 is that under the pressure of 340N, the upper millstone rotates forwards at 30rpm, the planet disc clamp rotates forwards at 25rpm, the lower millstone rotates backwards at 30rpm, and the time is 5 s;
p5 was left at 170N for 3 s.
Example 4
The processing technology is adopted, except that the pressure is 5 pressure sections, and specifically, the P0 is kept still for 3s under the pressure of 100N;
p1 is under 250N pressure, the upper millstone rotates forwards at 45rpm, the planetary disk clamp rotates forwards at 25rpm, the lower millstone rotates backwards at 60rpm, and the time is 5 s;
p2 is under 450N pressure, the upper millstone rotates forwards at 80rpm for 8s, the planet disk clamp rotates forwards at 60rpm for 5s, and the lower millstone rotates backwards at 80rpm for 8 s;
p3 is 760N pressure, the upper grinding disc rotates forwards at 70rpm for 8s, the planet disc clamp rotates forwards at 60rpm for 5s, the lower grinding disc rotates backwards at 120rpm for 8 s;
p4 is 300N pressure, the upper millstone rotates forwards at 35rpm, the planetary disk clamp rotates forwards at 24rpm, the lower millstone rotates backwards at 30rpm, and the time is 5 s;
p5 was left standing for 3s under 160N pressure.
Example 5
The processing technology is adopted, except that the pressure is 5 pressure sections, and specifically, the P0 is kept still for 3s under the pressure of 100N;
p1 is under 250N pressure, the upper millstone rotates forwards at 40rpm, the planetary disk clamp rotates forwards at 25rpm, the lower millstone rotates backwards at 45rpm, and the time is 5 s;
p2 is under 440N pressure, the upper millstone rotates forwards at 76rpm for 8s, the planetary disk clamp rotates forwards at 40rpm for 5s, the lower millstone rotates backwards at 85rpm for 8 s;
p3 is under 760N pressure, the upper grinding disc rotates forwards at 85rpm for 8s, the planet disc clamp rotates forwards at 45rpm for 5s, the lower grinding disc rotates backwards at 105rpm for 8 s;
p4 is 300N pressure, the upper millstone rotates forwards at 30rpm, the planetary disc clamp rotates forwards at 25rpm, the lower millstone rotates backwards at 30rpm, and the time is 5 s;
p5 was left standing for 3s under 160N pressure.
Comparative example 1
The processing technology is adopted, except that the pressure is 3 pressure sections, and specifically, the P0 is kept still for 3s under the pressure of 100N;
p1 is under 450N pressure, the upper millstone rotates forwards at 70rpm for 8s, the planet disk clamp rotates forwards at 40rpm for 5s, and the lower millstone rotates backwards at 90rpm for 8 s;
p2 is under 760N pressure, the upper grinding disc rotates forwards at 80rpm for 8s, the planetary disc clamp rotates forwards at 50rpm for 5s, and the lower grinding disc rotates backwards at 110rpm for 8 s;
p3 was left standing for 3s under 160N pressure.
Comparative example 2
This comparative example is a modification of example 1, and the specific jig is made of epoxy resin.
The difference in thickness between opposite sides of the blade produced in the above example was measured and the measured values are shown in Table 1.
The blades obtained from example 1 and comparative example 2 were also tested after 100 passes, and the difference in thickness between the opposite sides of the blade was measured, as shown in table 2.
TABLE 1
TABLE 2
| Test specimen | Example 1 | Comparative example 2 |
| Difference in thickness of opposite sides (mm) | 0.02 | 0.3 |
As can be seen from Table 1, the thickness difference of two opposite sides of the blade prepared by the cutting process is very small and is far lower than that of the blade prepared by the comparative example 1, mainly because the embodiment adopts a 5-pressure section to grind a machined part step by step under different pressures, the machining stress of the machined part can be effectively and gradually released, so that the probability of the blade that two sides are tilted or deformed is very small, and the thickness difference of the two opposite sides is small; meanwhile, as can be seen from table 2, after the fixture body in embodiment 1 is used for 100 times, the difference value of the two opposite edges of the prepared blade is far lower than that of the blade in comparative example 2, mainly because the fixture body in embodiment 1 is made of Q235 steel, the situation that the rapid abrasion gap of the fixture is enlarged and the double positioning effect is lost is avoided, namely, the fixture body made of epoxy resin is subjected to durable grinding, the gap of the two opposite edges of the product is enlarged, and the reject ratio is increased.
The above additional technical features can be freely combined and used in superposition by those skilled in the art without conflict.
In the description of the embodiments of the present invention, it should be understood that "-" and "-" indicate the same range of two numerical values, and the range includes the endpoints. For example: "A-B" means a range of greater than or equal to A and less than or equal to B. "A to B" means a range of not less than A and not more than B.
In the description of the embodiments of the present invention, the term "and/or" herein is only one kind of association relationship describing an associated object, and means that there may be three kinds of relationships, for example, a and/or B, and may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
The above description is only a preferred embodiment of the present invention, and the technical solutions that achieve the objects of the present invention by basically the same means are all within the protection scope of the present invention.
Claims (9)
1. Planet dish anchor clamps, its characterized in that: the fixture comprises a fixture body (100), wherein clearance holes (104) and a plurality of workpiece placing positions are formed in the fixture body, and the workpiece placing positions are annularly arranged along the clearance holes (104); the workpiece placing position comprises a placing cavity (101) and a avoiding hole (103), and the gap between the placing cavity (101) and a workpiece placed in the placing cavity is less than or equal to 0.1 mm.
2. The planet carrier clamp of claim 1, wherein: the placing cavity (101) is in a diamond shape, the avoiding holes (103) are positioned on four vertex angles of the diamond shape, and the acute angle in the vertex angles is 30-40 degrees.
3. The planet carrier clamp of claim 1, wherein: the avoiding hole (103) is circular, triangular or quadrilateral.
4. The planet carrier clamp of claim 1, wherein: the clamp body (100) is made of stainless steel.
5. The planet carrier clamp of claim 1, wherein: the clamp body (100) is circular, and a gear ring (102) is arranged at the side end of the circular shape to be meshed with a rotating gear of a driving device.
6. The planet carrier clamp of claim 1, wherein: an upper grinding disc (200) is further arranged above the clamp body (100), and a lower grinding disc (300) is arranged below the clamp body.
7. The technology for processing the rhombic blade by using the planet disk clamp is characterized in that: the machining piece is placed in the placing cavity (101), the upper grinding disc (200) and the lower grinding disc (300) are driven to be in contact with the clamp body (100) and apply pressure, the upper grinding disc (200) and the clamp body (100) rotate in the same direction at a different speed under certain pressure, and the lower grinding disc and the planetary disc clamp rotate in the opposite direction, so that the machining piece is ground, and the diamond-shaped blade is manufactured.
8. The process for machining a diamond-shaped blade by using the planetary disc clamp as claimed in claim 7, wherein the process comprises the following steps: the pressure is at least 5 pressure sections, the concrete P0 is kept still for 3-5s under the pressure of 100N,
p1 is 200-250N pressure, the upper grinding disc rotates forwards at 30-60rpm, the planetary disc clamp rotates forwards at 20-50rpm, the lower grinding disc rotates backwards at 30-60rpm, and the time is 2-8 s;
p2 is under the pressure of 300-450N, the upper grinding disc rotates forwards at 60-80rpm for 5-10s, the planet disc clamp rotates forwards at 30-60rpm for 2-7s, the lower grinding disc rotates backwards at 70-100rpm for 5-10 s;
p3 is under the pressure of 700-800N, the upper grinding disc rotates forwards at 60-100rpm for 5-10s, the planet disc clamp rotates forwards at 40-80rpm for 3-9s, the lower grinding disc rotates backwards at 100-120rpm for 5-10 s;
p4 is 200-400N pressure, the upper grinding disc rotates forwards at 20-40rpm, the planet disc clamp rotates forwards at 20-30rpm, the lower grinding disc rotates backwards at 20-30rpm, and the time is 3-9 s;
p5 is kept for 3-5s under the pressure of 150-190N.
9. A diamond blade characterized by: the diamond-shaped blade is manufactured by the process for machining the diamond-shaped blade by using the planetary disk clamp as claimed in claim 7 or 8.
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| CN202110379141.9A CN113183028B (en) | 2021-04-08 | 2021-04-08 | Process for machining diamond-shaped blade by using planet disc clamp and diamond-shaped blade |
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| CN202110379141.9A CN113183028B (en) | 2021-04-08 | 2021-04-08 | Process for machining diamond-shaped blade by using planet disc clamp and diamond-shaped blade |
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| CN113183028B CN113183028B (en) | 2022-11-29 |
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Cited By (1)
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| CN208629205U (en) * | 2018-08-31 | 2019-03-22 | 东莞金源五金机械有限公司 | A kind of conducting block twin grinder |
| CN109290937A (en) * | 2018-10-12 | 2019-02-01 | 汉能新材料科技有限公司 | A kind of chip-bearing disc, grinder, polishing machine, grinding method and polishing method |
| CN111975501A (en) * | 2020-08-19 | 2020-11-24 | 宁波三韩合金材料有限公司 | Carbide blade grinding shaping processing lines |
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| CN114405985A (en) * | 2022-01-06 | 2022-04-29 | 江苏伟恒土壤治理科技有限公司 | Electro-catalysis spraying spinning polluted soil crushing and repairing equipment |
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