Cutting saw offset measurement detection device, cutting saw, and sawing stock loss compensation method

Abstract

The application discloses a cutting saw offset measuring detection device, a cutting saw and a sawing material loss compensation method, and relates to the field of aluminum alloy profile production devices. The detection device comprises a base, an offset adjusting plate, a reference cylinder and an adjusting screw. The base and the reference cylinder are installed on the offset adjusting plate, and the offset adjusting plate is adjusted in the horizontal position through the adjusting screw. The upper surface of the base is a positioning surface, and an end surface detection plane which is perpendicular to the positioning surface and coincides with the center of the reference cylinder is arranged on the reference cylinder. The offset distance of the swinging shaft center of the saw blade relative to the rear positioning surface of the workpiece and the offset distance of the end surface of the saw blade and the swinging shaft center of the upper hanging saw blade can be accurately measured, the material loss problem is effectively and accurately solved, and the sawing precision of the equipment is obviously improved.

Description

Technical Field

[0001] This invention relates to the field of aluminum alloy profile production equipment, and in particular to a cutting saw offset measurement and detection device, a cutting saw and a saw material damage compensation method. Background Technology

[0002] When a top-mounted saw blade cuts profiles, material loss occurs from both ends of the blade. In existing technologies, the material loss value is mostly determined by testing the saw blade on a sample machine and then measuring the material loss.

[0003] The method of testing the sawn profiles and then measuring the material loss has the following disadvantages: 1. The sharp tip of the sawn profile will produce a large measurement error; 2. It can only measure a few commonly used angles, such as 45°, 90°, 135°, etc., and compensation is performed separately for each angle after measurement; The drawback of the above measurement method is that the measurement error is large, resulting in poor control of the final finished material length accuracy; it can only compensate for individual angles and cannot achieve compensation for arbitrary angles.

[0004] According to the design requirements of top-mounted saw blade sawing, the swing center of the top-mounted saw blade needs to be offset by a distance 'a' behind the positioning surface of the worktable. The thickness of the saw blade is 'h', and the two ends of the saw blade are respectively separated by a distance 'h1' and 'h2' from the swing center.

[0005] Due to processing and assembly errors, as well as the uncertainty of saw blade thickness, the values ​​of a, h, h1, and h2 are uncertain and different for each machine. In order to maintain the sawing accuracy of the sawing center, it is necessary to accurately calculate and compensate for the material loss, so as to achieve a high sawing accuracy at any angle.

[0006] Currently, conventional measurement methods cannot detect the values ​​of a, h, h1, and h2, which means that saws that use an overhead saw to rotate and cut at bevel angles cannot achieve arbitrary angles and can only cut at fixed angles. Summary of the Invention

[0007] The purpose of this invention is to address the problems of large measurement errors in existing methods, which result in poor control of the final product length accuracy; and the inability to compensate for arbitrary angles, which can only compensate for individual angles. This invention provides a cutting saw offset measurement and detection device, a cutting saw, and a saw material damage compensation method.

[0008] To address the existing problems, the first aspect of the present invention provides a cutting saw offset measuring and detection device, the detection device comprising a base, an offset adjustment plate, a reference cylinder, and an adjustment screw; the base and the reference cylinder are mounted on the offset adjustment plate, and the offset adjustment plate is adjusted to a horizontal position by the adjustment screw; the upper surface of the base is a positioning surface, and the reference cylinder is provided with an end face detection plane that is perpendicular to the positioning surface and coincides with the center of the reference cylinder.

[0009] A second aspect of the present invention provides an overhead arbitrary angle cutting saw, comprising a detection device and a frame, wherein a worktable is provided on the frame, the bottom surface of a base is disposed on the worktable, and the positioning surface is in contact with the rear positioning surface of the worktable; an overhead saw blade is disposed on the upper part of the worktable, and the overhead saw blade is connected to a drive mechanism; an overhead seat for detecting the center of the saw blade swing axis is disposed on the upper part of the overhead saw blade; the center of the saw blade swing axis is coaxial with a reference cylinder.

[0010] Preferably, the driving mechanism is a saw blade motor, which is mounted on the frame via a motor mounting bracket.

[0011] A third aspect of the present invention provides a method for compensating for material loss in an overhead arbitrary angle cutting saw, comprising the following steps: The testing device is placed on the workbench; A dial indicator is installed on the saw blade motor mounting bracket; Rotate and swing the upper suspended saw blade, adjust the offset adjustment plate and adjust the horizontal position of the upper suspended saw blade so that the dial indicator reading is the same at any angle. Measure the distance between the center of the adjusted reference cylinder and the positioning surface to determine the offset value of the saw blade swing axis center relative to the rear positioning surface; Move the upper suspended saw blade horizontally or adjust the horizontal position of the detection device so that the end face of the upper suspended saw blade contacts the center plane of the detection device; Measure the moving distance to obtain the distance between the end face of the suspended saw blade and the center of the saw blade swing.

[0012] Preferably, in step 1, the bottom surface of the base contacts the worktable surface, and the positioning surface remains in contact with the rear positioning surface of the worktable surface.

[0013] Preferably, in step 2, the dial indicator is magnetically fixed to the frame.

[0014] Preferably, in step 2, the dial indicator contact is made on the outer circular surface of the reference cylinder of the detection device.

[0015] Preferably, in step 3, the swing center of the upper suspended saw blade is coaxial with the reference cylinder.

[0016] As can be seen from the above technical solutions, the beneficial effects of the present invention are: the present invention can accurately measure the offset distance a of the center of the saw blade swing axis relative to the workpiece rear positioning surface and the offset distances h1 and h2 between the end face (side face) of the saw blade and the center of the swing axis of the upper suspended saw blade through the detection device, thereby determining the variation model of material loss s according to any angle and formula, thus effectively and accurately solving the material loss problem and significantly improving the sawing accuracy of the equipment. Attached Figure Description

[0017] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the detection device of the present invention.

[0019] Figure 2 This is a schematic diagram of the structure of the detection device of the present invention mounted on an overhead arbitrary angle cutting saw. Figure 1 .

[0020] Figure 3 This is a schematic diagram of the structure of the detection device of the present invention mounted on an overhead arbitrary angle cutting saw. Figure 2 .

[0021] Figure 4 This is a top view of the overhead arbitrary angle cutting saw of the present invention.

[0022] Figure 5 for Figure 4 An enlarged diagram of A in the diagram.

[0023] Figure 6 A diagram illustrating material loss when sawing a workpiece at any angle. Figure 1 .

[0024] Figure 7 A diagram illustrating material loss when sawing a workpiece at any angle. Figure 2 .

[0025] Figure 8 A diagram illustrating material loss when sawing a workpiece at any angle. Figure 3 .

[0026] Figure 9 A diagram illustrating material loss when sawing a workpiece at any angle. Figure 4 .

[0027] Figure 10 A diagram illustrating material loss when sawing a workpiece at any angle. Figure 5 .

[0028] In the diagram: 1. Base; 2. Offset adjustment plate; 3. Reference cylinder; 4. Adjusting screw; 5. Frame; 6. Worktable; 7. Upper suspended saw blade; 8. Saw blade motor; 9. Motor mounting base; 10. Upper suspension seat; 11. Positioning surface; 12. Workpiece profile; 13. Scrap material; 31. End face inspection plane. Detailed Implementation

[0029] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0030] Referring to the figure, the first aspect of the present invention discloses a cutting saw offset measuring and detection device, including a base 1, an offset adjustment plate 2, and a reference cylinder 3; the base 1 and the reference cylinder 3 are mounted on the offset adjustment plate 2, the upper surface of the base 1 is a positioning surface 11, and the reference cylinder 3 is provided with an end face detection plane 31 that is perpendicular to the positioning surface 11 and coincides with the center of the reference cylinder 3; it also includes an adjusting screw 4, which is mounted on the reference cylinder, and the offset adjustment plate 2 is adjusted to a horizontal position by adjusting the adjusting screw 4; obviously, in order to achieve the horizontal position adjustment of the offset adjustment plate 2, it can also be achieved manually or in other ways.

[0031] The second aspect of this invention discloses an overhead arbitrary angle cutting saw, including a frame 5, a worktable 6 on the frame 5, a base 1 on the worktable 6, a positioning surface 11 in contact with the rear positioning surface of the worktable 6; an overhead saw blade 7 on the upper part of the worktable 6, the overhead saw blade 7 being connected to a drive mechanism; an overhead seat 10 for detecting the center of the saw blade swing axis on the upper part of the overhead saw blade 7; the center of the saw blade swing axis is coaxial with the reference cylinder 3.

[0032] The driving mechanism is a saw blade motor 8, which is mounted on the frame 5 via a motor mounting base 9.

[0033] A third aspect of the present invention provides a method for compensating for material loss in an overhead arbitrary angle cutting saw. First, using detection method one, the central axis of the special detection device and the swing axis of the upper suspended saw blade are concentric, and the offset distance 'a' of the center of the saw blade swing axis relative to the workpiece rear positioning surface is accurately measured and determined. Then, using detection method 2 and the detection device, move the upper suspended saw blade or the detection device horizontally along the X-axis a distance so that one end face (side) of the 90° saw blade contacts the central plane on the central axis of the detection device. By accurately measuring the moving distance, the offset distance h1 between the measured plane of the 90° saw blade and the center of the swing axis of the upper suspended saw blade can be determined.

[0034] Similarly, the offset distance h2 of the other end face (side) of the saw blade relative to the center of the swing axis of the upper-mounted saw blade can be detected. This step can also be determined by detecting the saw blade thickness h and then calculating h2 = h - h1.

[0035] Saw blade thickness: h = h1 + h2.

[0036] Material loss s = s1 + s2 s1 = s1A + s1B s1A=a / tanα1 s1B=h1 / sinα1 s2 = s2A + s2B s2A=a / tanα2 s2B=h2 / sinα2 The material loss values ​​s1 and s2 at both ends of the saw blade are obtained by calculating the material loss s = s1 + s2 after each angle sawing by the saw blade. The material loss s is calculated as s = s1 + s2, and the material loss s of the saw cut is obtained. Then the feeding length = finished product length + material loss s. The feeding length can be used to complete feeding at any angle and any length.

[0037] Specific testing method one: The bottom surface of the base contacts the worktable surface, and the positioning surface keeps in contact with the rear positioning surface of the worktable surface. The dial indicator is magnetically fixed on the saw blade motor mounting base, so that the dial indicator contact is in contact with the outer circular surface of the reference cylinder of the special testing device. Rotate and swing the suspended saw blade, observe the dial indicator pointer reading, and use the adjusting screw to adjust the offset adjustment plate of the special testing device, and adjust the horizontal position of the suspended saw blade on the saw accordingly (or adjust the horizontal position of the testing device) so that the dial indicator pointer reading is the same at any angle. At this point, the adjustment is complete, meaning the swing center of the upper-suspended saw blade is coaxial with the reference cylinder of the detection device.

[0038] By accurately measuring the distance between the center of the adjusted reference cylinder and the positioning surface, the offset value 'a' of the saw head's swing center relative to the rear positioning surface can be determined.

[0039] Method 2: Based on Method 1, move the upper suspended saw blade horizontally a distance (or adjust the horizontal position of the testing device) so that one end face (side) of the upper suspended saw blade contacts the central plane of the testing device. Accurately measure the moving distance to obtain the distance h1 between the end face of the saw blade and the center of the saw blade's swing. Similarly, h2 can be measured.

[0040] The terms "upper," "lower," "outer," "inner," etc., used in the specification, claims, and accompanying drawings of this invention are used to distinguish relative positional relationships and are not necessarily qualitative. It should be understood that such data can be interchanged where appropriate so that embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0041] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A top-mounted arbitrary angle cutting saw, characterized in that, Includes a cutting saw offset measuring and detection device and a frame; The cutting saw offset measuring and detection device includes a base, an offset adjustment plate, and a reference cylinder; the base and the reference cylinder are mounted on the offset adjustment plate, and the offset adjustment plate is adjusted to a horizontal position by adjusting screws; the upper surface of the base is a positioning surface, and the reference cylinder is provided with an end face detection plane that is perpendicular to the positioning surface and coincides with the center of the reference cylinder; The frame is provided with a worktable, the bottom surface of the base is provided on the worktable, and the positioning surface is in contact with the rear positioning surface of the worktable; an upper suspended saw blade is provided on the upper part of the worktable, and the upper suspended saw blade is connected to a drive mechanism; an upper suspension seat for detecting the center of the saw blade swing axis is provided on the upper part of the upper suspended saw blade; the center of the saw blade swing axis is coaxial with the reference cylinder.

2. The overhead arbitrary angle cutting saw according to claim 1, characterized in that, It also includes adjusting screws, which are mounted on the reference cylinder and used to adjust the horizontal position of the offset adjustment plate.

3. The overhead arbitrary angle cutting saw according to claim 2, characterized in that, The drive mechanism is a saw blade motor, which is mounted on the frame via a motor mounting bracket.

4. A method for compensating material loss in an overhead arbitrary angle cutting saw, characterized in that, The method of using the overhead arbitrary angle cutting saw as described in claim 3 includes the following steps: 1) The testing device is placed on the workbench; 2) Install a dial indicator on the saw blade motor mounting bracket; 3) Rotate and swing the upper suspended saw blade, adjust the offset adjustment plate and adjust the horizontal position of the upper suspended saw blade so that the dial indicator reading is the same at any angle; 4) Measure the distance between the center of the adjusted reference cylinder and the positioning surface to determine the offset value of the saw blade swing axis center relative to the rear positioning surface; 5) Horizontally move the upper suspended saw blade or adjust the horizontal position of the detection device so that the end face of the upper suspended saw blade contacts the center plane of the detection device; 6) Measure the moving distance to obtain the distance between the end face of the suspended saw blade and the center of the saw blade swing.

5. The material loss compensation method for overhead arbitrary angle cutting saws according to claim 4, characterized in that, In step 1, the bottom surface of the base contacts the worktable surface, and the positioning surface remains in contact with the rear positioning surface of the worktable surface.

6. The material loss compensation method for overhead arbitrary angle cutting saws according to claim 4, characterized in that, In step 2, the dial indicator is magnetically attached to the frame.

7. The material loss compensation method for overhead arbitrary angle cutting saws according to claim 6, characterized in that, In step 2, the dial indicator contacts the outer circular surface of the reference cylinder of the detection device.

8. The material loss compensation method for overhead arbitrary angle cutting saws according to claim 4, characterized in that, In step 3, the swing center of the upper suspended saw blade is coaxial with the reference cylinder.

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