Detection method for ultra-large type hard alloy circular saw blade base body

Abstract

The invention discloses a detection method for an ultra-large type hard alloy circular saw blade base body, and relates to the technical field of saw blade base body detection. According to the detection method for the ultra-large type hard alloy circular saw blade base body, the diameter (D) of the ultra-large type hard alloy circular saw blade base body ranges from phi 2000 mm to phi 2800mm; the detection method comprises the following steps: step 1, appearance detection: detecting whether burrs and corrosion exist on the surface of a base body or not through visual inspection; checking whether cracks exist on the surface of the substrate by using a 10-time magnifying lens; the surface roughness of the base body is detected according to the regulation of GB / T6060.3; according to the detection method, through multi-dimensional detection (appearance, hardness, size, form and location tolerance, dynamic balance and the like), the surface quality, mechanical property, geometric accuracy and dynamic characteristics are covered, the quality defects of the ultra-large type hard alloy circular saw blade base body are accurately recognized, the product quality is guaranteed from the source, saw cutting operation faults caused by the base body problem are avoided, and the production efficiency is improved. And the overall performance and reliability of the saw blade are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of saw blade substrate detection, in particular to a detection method for a super-large hard alloy circular saw blade substrate. BACKGROUND

[0002] The super-large hard alloy circular saw blade substrate (diameter Φ2000-Φ2800mm) is a key component for sawing wood, artificial board, plastic, non-ferrous metal and other materials, and its quality directly affects the sawing efficiency, processing precision and operation safety. Due to its super-large size (diameter far exceeding the conventional saw blade substrate), the requirements for material performance, shape precision, mechanical properties and dynamic balance are more stringent during manufacturing and use.

[0003] From the application scenario, such super-large saw blade substrate is usually used in large-scale processing equipment and needs to realize continuous and stable cutting operation under high-speed rotation. If the substrate has appearance defects (such as cracks and burrs), it may cause stress concentration and lead to the risk of fracture; if the size precision (such as flatness, radial runout and end face runout) is not up to standard, it will cause vibration and noise increase during sawing, which not only reduces the processing precision, but also aggravates the equipment wear; if the hardness is uneven or exceeds the specified range (HRC38-48), it will affect the wear resistance and impact resistance of the saw blade, and shorten the service life; and if the dynamic unbalance exceeds the standard, it will cause additional centrifugal force when rotating at high speed, which may cause equipment failure or even safety accidents. Therefore, a detection method is designed to accurately detect the key indicators such as appearance, hardness, shape size, flatness, radial runout, end face runout and dynamic unbalance, so as to effectively control the quality of the super-large hard alloy circular saw blade substrate and ensure its reliability and stability in actual application. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a detection method for a super-large hard alloy circular saw blade substrate, which solves the problems raised in the background art.

[0005] To achieve the above purpose, the present application realizes the following technical scheme: a detection method for a super-large hard alloy circular saw blade substrate, the diameter (D) of the super-large hard alloy circular saw blade substrate is Φ2000-Φ2800mm, and the detection method comprises the following steps:

[0006] Step one, appearance detection: check whether there are burrs and rust on the surface of the substrate by visual inspection; check whether there are cracks on the surface of the substrate using a 10x magnifying glass; detect the surface roughness of the substrate according to the provisions of GB / T6060.3;

[0007] Step two, hardness detection: according to the requirements of GB / T230.1, three points are randomly selected on the substrate for detection, and the average value of the three detection results is taken as the substrate hardness value. The difference between the maximum value and the minimum value is calculated to obtain the same piece hardness difference value of the substrate;

[0008] Step three, size detection: the outer diameter of the substrate is measured by a steel tape measure; the thickness of the substrate is measured by an outer diameter micrometer with a graduation value of 0.01 mm; the groove depth, side gap and step depth are measured by a depth gauge with a graduation value of 0.02 mm; the groove width is measured by a vernier caliper with a graduation value of 0.02 mm; the inner hole diameter is measured by a special plug gauge, or a vernier caliper with a graduation value of 0.02 mm, or an inner diameter dial gauge with a graduation value of 0.01 mm; all inspection items are evenly inspected in three directions along the diameter direction, and the average value is taken;

[0009] Step four, flatness detection: the flatness of the substrate is checked by using a 500:0.02 flatness gauge and a plug gauge;

[0010] Step five, radial circular runout detection: the center hole of the substrate is positioned and clamped by a mandrel, the dial gauge is placed in contact with the substrate outer circle, and the substrate is slowly rotated, and the difference between the maximum and minimum values of the dial gauge is read out, which is the radial circular runout value;

[0011] Step six, end face circular runout detection: the dial gauge contact is placed at a distance of 10 mm from the tooth groove bottom of the substrate side surface, and the difference between the maximum and minimum values of the dial gauge is read out, which is the end face circular runout value;

[0012] Step seven, dynamic unbalance detection: dynamic unbalance detection is performed on the substrate to ensure that the weight deviation meets the specified requirements.

[0013] According to the above technical scheme, the maximum allowable value of the substrate surface roughness in step one is Ra3.2μm.

[0014] According to the above technical scheme, in step two, the substrate hardness requirement is Rockwell hardness HRC=38-48, and the same piece hardness difference of the substrate is required to be ≤4HRC.

[0015] According to the above technical scheme, in step four, the flatness of the substrate should meet the following requirements:

[0016] When 2000≤D≤2100mm, the flatness is ≤0.40mm;

[0017] When 2100<D≤2200mm, the flatness is ≤0.50mm;

[0018] When 2200<D≤2300mm, the flatness is ≤0.55mm;

[0019] When 2300 < D ≤ 2500 mm, the flatness is ≤ 0.60 mm;

[0020] When 2500 < D ≤ 2800 mm, the flatness is ≤ 0.70 mm.

[0021] According to the above technical solution, in the step five, the radial runout of the outer circle of the base to the inner hole axis should meet the following provisions:

[0022] When 2000 ≤ D ≤ 2100 mm, the radial runout is ≤ 0.50 mm;

[0023] When 2100 < D ≤ 2200 mm, the radial runout is ≤ 0.60 mm;

[0024] When 2200 < D ≤ 2300 mm, the radial runout is ≤ 0.65 mm;

[0025] When 2300 < D ≤ 2500 mm, the radial runout is ≤ 0.70 mm;

[0026] When 2500 < D ≤ 2800 mm, the radial runout is ≤ 0.80 mm.

[0027] According to the above technical solution, in the step six, the end face runout of the two sides of the base to the inner hole axis should meet the following provisions:

[0028] When 2000 ≤ D ≤ 2100 mm, the end face runout is ≤ 0.50 mm;

[0029] When 2100 < D ≤ 2200 mm, the end face runout is ≤ 0.60 mm;

[0030] When 2200 < D ≤ 2300 mm, the end face runout is ≤ 0.65 mm;

[0031] When 2300 < D ≤ 2500 mm, the end face runout is ≤ 0.70 mm;

[0032] When 2500 < D ≤ 2800 mm, the end face runout is ≤ 0.80 mm.

[0033] According to the above technical solution, in the step seven, the allowable eccentric weight of the base should meet the following provisions:

[0034] When 2000 ≤ D ≤ 2100 mm, the allowable eccentric weight is ≤ 50;

[0035] When 2100 < D ≤ 2200 mm, the allowable eccentric weight is ≤ 60;

[0036] When 2200 < D ≤ 2300 mm, the allowable eccentric weight is ≤ 80;

[0037] When 2300 < D ≤ 2500 mm, the allowable eccentric weight ≤ 90;

[0038] When 2500 < D ≤ 2800 mm, the allowable eccentric weight ≤ 110.

[0039] The application provides a detection method for a super-large hard alloy circular saw blade base.

[0040] (1) The application can accurately identify the quality defects of the super-large hard alloy circular saw blade base through multi-dimensional detection (appearance, hardness, size, geometric tolerance, dynamic balance, etc.), covering surface quality, mechanical properties, geometric accuracy and dynamic characteristics, thereby guaranteeing product quality from the source, avoiding sawing operation failures caused by base problems, and improving the overall performance and reliability of the saw blade.

[0041] (2) The application can effectively control the discreteness of performance parameters such as base hardness and size through operations such as multiple point value averaging and difference value for hardness detection and multiple direction measurement for size detection, thereby ensuring consistent performance of the same base and different batches of bases, improving the stability of the saw blade in large-scale and continuous sawing operations, and reducing sawing precision differences caused by base performance fluctuations.

[0042] (3) The application can guarantee the stability of the base during high-speed rotation, reduce vibration and noise, and meet the needs of large-scale processing equipment for high-precision and high-reliability saw blade bases, thereby prolonging the service life of the equipment and the saw blade, by detecting flatness, radial and end face runout, dynamic balance, etc. according to the application scenarios (high-speed and heavy-load sawing) of super-large bases.

[0043] (4) The application can provide a basis for production process quality control and facilitate after-sales analysis and quality improvement by constructing a standardized detection process and recording and tracing detection data, thereby promoting the standardization and systematization of super-large saw blade base production from manufacturing to quality control. BRIEF DESCRIPTION OF DRAWINGS

[0044] Fig. 1 The figure is a detection process schematic diagram of the application;

[0045] Fig. 2 The figure is a saw blade base end face runout and radial runout detection schematic diagram. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the application will be described in detail below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, not all embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the application.

[0047] Referring to Figs. 1-2 One embodiment of the present application is a detection method for a super-large hard alloy circular saw blade base, the diameter (D) of the super-large hard alloy circular saw blade base is Φ2000-Φ2800mm, and the detection method comprises the following steps:

[0048] Step one, appearance detection: check whether burrs and rust exist on the surface of the base by visual inspection; check whether cracks exist on the surface of the base by using a 10 times magnifying glass; and detect the surface roughness of the base according to the provisions of GB / T6060.3;

[0049] Step two, hardness detection: perform according to the requirements of GB / T230.1, detect three points on the base at random, take the average value of the three detection results as the hardness value of the base, calculate the difference value between the maximum value and the minimum value to obtain the same piece hardness difference value of the base;

[0050] Step three, outer dimension detection: measure the outer diameter and other dimensions of the base by using a steel tape measure; measure the thickness of the base by using an outside micrometer with a division value of 0.01mm; measure the groove depth, side gap and step depth by using a depth gauge with a division value of 0.02mm; measure the groove width by using a vernier caliper with a division value of 0.02mm; measure the inner hole diameter by using a special plug gauge, or a vernier caliper with a division value of 0.02mm, or an inside micrometer with a division value of 0.01mm; all inspection items are uniformly inspected in three directions along the diameter direction, and the average value is taken;

[0051] Step four, flatness detection: check the flatness of the base by using a 500:0.02 flat ruler and a plug gauge;

[0052] Step five, radial roundness runout detection: position and clamp the center hole of the base by using a mandrel, place the dial gauge in contact with the base outer circle by using the contact head, slowly rotate the base, read the difference value between the maximum and minimum values of the dial gauge, which is the radial roundness runout value;

[0053] Step six, end face roundness runout detection: place the contact head of the dial gauge at a position 10mm away from the tooth groove bottom on the side surface of the base, read the difference value between the maximum and minimum values of the dial gauge, which is the end face roundness runout value;

[0054] Step seven, dynamic unbalance detection: perform dynamic unbalance detection on the base to ensure that the weight deviation meets the specified requirements.

[0055] The maximum allowable value of the surface roughness of the base in step one is Ra3.2μm.

[0056] In step two, the hardness requirement of the base is Rockwell hardness HRC=38-48, and the same piece hardness difference requirement of the base is ≤4HRC.

[0057] In step four, the flatness of the base body shall comply with the following provisions:

[0058] When 2000≤D≤2100mm, the flatness is ≤0.40mm;

[0059] When 2100

[0060] When 2200

[0061] When 2300

[0062] When 2500

[0063] In step five, the radial runout of the outer circle of the base body to the axis of the inner hole shall comply with the following provisions:

[0064] When 2000≤D≤2100mm, the radial runout is ≤0.50mm;

[0065] When 2100

[0066] When 2200

[0067] When 2300

[0068] When 2500

[0069] In step six, the end face runout of the two side faces of the base body to the axis of the inner hole shall comply with the following provisions:

[0070] When 2000≤D≤2100mm, the end face runout is ≤0.50mm;

[0071] When 2100

[0072] When 2200

[0073] When 2300

[0074] When 2500

[0075] In step seven, the allowable weight deviation of the base body shall comply with the following provisions:

[0076] when 2000 < D < 2100 mm, the allowable eccentric weight < 50;

[0077] when 2100 < D < 2200 mm, the allowable eccentric weight < 60;

[0078] when 2200 < D < 2300 mm, the allowable eccentric weight < 80;

[0079] when 2300 < D < 2500 mm, the allowable eccentric weight < 90;

[0080] when 2500 < D < 2800 mm, the allowable eccentric weight < 110.

[0081] While embodiments of the present application have been shown and described with reference to particular embodiments thereof, it will be understood by those skilled in the art that various changes in form and details can be made therein without departing from the spirit and scope of the application as defined by the appended claims and their equivalents.

Claims

1. A method of testing a supermassive cemented carbide circular saw blade base, characterized in that: The diameter (D) of the super-large cemented carbide circular saw blade base is Φ2000-Φ2800mm, and the detection method comprises the following steps: Step one, appearance detection: check whether there are burrs and rust on the surface of the base by visual inspection; check whether there are cracks on the surface of the base by using a 10 times magnifying glass; detect the surface roughness of the base according to the provisions of GB / T6060.3; Step two, hardness detection: perform according to the requirements specified in GB / T230.1, detect three points on the base, take the average value of the three detection results as the hardness value of the base, calculate the difference between the maximum value and the minimum value to obtain the same piece hardness difference value of the base; Step three, outer dimension detection: measure the outer diameter and other dimensions of the base by using a steel tape; measure the thickness of the base by using an outer diameter micrometer with a graduation value of 0.01mm; measure the groove depth, side gap and step depth by using a depth gauge with a graduation value of 0.02mm; measure the groove width by using a vernier caliper with a graduation value of 0.02mm; measure the inner hole diameter by using a special plug gauge, or a vernier caliper with a graduation value of 0.02mm, or an inner diameter dial gauge with a graduation value of 0.01mm; all inspection items are uniformly inspected in three directions along the diameter direction, and the average value is taken; Step four, flatness detection: check the flatness of the base by using a 500:0.02 flat ruler and a plug gauge; Step five, radial roundness runout detection: position and clamp the center hole of the base with a mandrel, place the dial gauge on the contact head to contact the outer circle of the base, slowly rotate the base, and read the difference between the maximum and minimum values of the dial gauge, which is the radial roundness runout value; Step six: end face roundness runout detection: place the dial gauge contact head on the base side surface 10mm away from the tooth groove bottom, read the difference between the maximum and minimum values of the dial gauge, which is the end face roundness runout value; Step seven: dynamic unbalance detection: perform dynamic unbalance detection on the base to ensure that the weight deviation meets the specified requirements.

2. A method of testing a super-hard carbide circular saw blade base according to claim 1, characterized in that: The maximum allowable value of the surface roughness of the base in step one is Ra3.2μm.

3. A method of testing a super-hard carbide circular saw blade base according to claim 2, characterized in that: In step two, the hardness requirement of the base is Rockwell hardness HRC=38-48, and the hardness difference of the same piece of the base is required to be ≤4HRC.

4. A method of testing a super-hard carbide circular saw blade base according to claim 3, characterized in that: In step four, the flatness of the base should meet the following provisions: When 2000≤D≤2100mm, the flatness is ≤0.40mm; When 2100 When 2200 When 2300 When 2500 5. A method of testing a super-hard carbide circular saw blade base according to claim 4, characterized in that: When 2500 In step five, the radial runout of the outer circle of the base to the inner hole axis should meet the following provisions: When 2000≤D≤2100mm, the radial roundness runout is ≤0.50mm; When 2100 When 2200 When 2300 When 2500 When 2500 6. A method of testing a super-hard carbide circular saw blade base according to claim 5, characterized in that: In the step six, the end face circle run-out of the base body facing the inner hole axis should meet the following provisions: When 2000≤D≤2100mm, the end face circle run-out is ≤0.50mm; When 2100 When 2200 When 2300 When 2300 7. A method of testing a super-hard carbide circular saw blade base according to claim 6, characterized in that: When 2500 When 2500 In the step seven, the allowable eccentric weight of the base body should meet the following provisions: When 2000≤D≤2100mm, the allowable eccentric weight is ≤50; When 2100 When 2200 When 2300 When 2300 When 2500 When 2500

Images