Search

CN-115890305-B - Z-shaped material high-precision sawing method

CN115890305BCN 115890305 BCN115890305 BCN 115890305BCN-115890305-B

Abstract

The invention relates to a Z-type material high-precision sawing method, which comprises the following steps of (1) adding a front correcting mechanism and a rear correcting mechanism on a positioning and clamping mechanism, (2) carrying out primary correction on Z-type materials through the front correcting mechanism and the rear correcting mechanism, carrying out batch processing if the Z-type materials are sawed at 90 degrees, obtaining a detection sample by carrying out primary correction trial cutting if the Z-type materials are beveled, (3) measuring errors, obtaining a gap distance delta S Solid one for the detection sample, carrying out batch processing if the gap requirement is delta S Is provided with , carrying out secondary correction if the gap requirement is delta S Solid one ≤ΔS Is provided with , carrying out secondary correction if the delta S Solid one ＞ΔS Is provided with is the required feed variable of the front correcting mechanism is delta S Former one and the required feed variable of the rear correcting mechanism is delta S The latter one , and S Front two ＝S Former one ±ΔS Former one , And adjusting the front correcting mechanism according to the step S Front two , adjusting the rear correcting mechanism according to the step S Second two , and performing batch processing after adjustment or checking. The sawing method has the advantages of reasonable design, small change to the existing sawing equipment, strong operability, strong universality, high sawing precision and the like.

Inventors

  • WANG LINGHONG

Assignees

  • 济南康宏机械有限公司

Dates

Publication Date
20260505
Application Date
20221129

Claims (10)

  1. 1.Z type material high-precision sawing method is characterized by comprising the following steps: (1) The positioning clamping mechanism is additionally provided with a front correcting mechanism and a rear correcting mechanism which are matched to work, the rear correcting mechanism horizontally acts on the rear suspension part of the Z-shaped material, the front correcting mechanism horizontally acts on the front suspension part of the Z-shaped material, the feeding amount of at least one of the front correcting mechanism and the rear correcting mechanism is adjustable, the feeding amount of at least one of the front correcting mechanism and the rear correcting mechanism is designed to be accurately adjusted, and the posture of the Z-shaped material is adjusted through the matching of the front correcting mechanism and the rear correcting mechanism; (2) First-stage correction, according to the design size of standard Z-type material, respectively calculating the required feeding quantity of front correction mechanism as The required feed amount of the post-correction mechanism is Then adjusting the front correcting mechanism to reach the feeding amount Adjusting the post-correction mechanism to achieve the feeding amount The Z-shaped material is subjected to primary correction through the cooperation of the front correction mechanism and the rear correction mechanism, and then is subjected to primary correction clamping through the cooperation of the front correction mechanism and the rear correction mechanism, if the Z-shaped material is subjected to 90-degree sawing, the Z-shaped material which is subjected to centering clamping is subjected to batch sawing processing by a 90-degree sawing machine head directly, if the Z-shaped material is subjected to beveling, the Z-shaped material which is subjected to primary correction clamping is subjected to trial cutting by the beveling sawing machine head to obtain a detection sample, and then the detection sample is subjected to measurement error; (3) Measuring error, comparing the bevel of the sample to the standard bevel, aligning the upper end or lower end of the bevel with the corresponding end of the standard bevel, and measuring the gap distance Setting the allowable maximum value of the gap to If (3) Batch sawing can be performed if The value of (2) needs to be corrected at the next stage; (4) Second order correction according to And the design parameters of the front correcting mechanism and the rear correcting mechanism are used for calculating the feed variable required by the front correcting mechanism as follows The feed variable required by the post-correction mechanism is Thereby obtaining the feed amount required by the front correcting mechanism as follows The feed amount required by the post-correction mechanism is Adjusting the front correcting mechanism to reach the feeding amount Adjusting the post-correction mechanism to achieve the feeding amount Then batch sawing the Z-shaped material by using a miter saw head, or measuring and checking the secondary correction effect, if Then continue the next stage of correction until , , 。
  2. 2. The high-precision sawing method for Z-type materials according to claim 1, wherein the positioning and clamping mechanism and the sawing machine head are installed on a machine frame, a main beam is arranged on the machine frame along the feeding direction of the Z-type materials, the positioning and clamping mechanism comprises a working table plate, a rear positioning plate is arranged on the rear side of the working table plate, a front clamping mechanism is arranged on the front side of the working table plate, and an upper pressing mechanism is arranged on the main beam.
  3. 3. The Z-type material high-precision sawing method according to claim 2, wherein the front clamping mechanism comprises a cantilever plate arranged on a main beam, a clamping slide rail is arranged on the cantilever plate, an included angle of 45 degrees is formed between the clamping slide rail and the Z-type material feeding direction, a clamping slide plate is arranged on the clamping slide rail, clamping side plates are respectively arranged on two sides of the clamping slide plate, a clamping pressing plate is arranged at the bottom of each clamping side plate, a clamping cylinder is arranged on the cantilever plate and connected with the clamping slide plate, the upper pressing mechanism comprises an upper pressing guide rail seat arranged at the upper end of the main beam, an upper pressing guide rail is vertically arranged on the upper pressing guide rail seat, an upper pressing slide plate is arranged on the upper pressing guide rail, an upper pressing cylinder is arranged at the lower end of the upper pressing guide rail seat, and the upper pressing cylinder is connected with the upper pressing slide plate.
  4. 4. A method of high precision sawing Z material according to claim 3 wherein two miter saw heads and two positioning and clamping mechanisms are symmetrically provided on the frame, one set of miter saw heads and positioning and clamping mechanism being for 45 ° sawing and the other set of miter saw heads and positioning and clamping mechanism being for 135 ° sawing.
  5. 5. The method of high precision sawing a Z-shaped material according to claim 4 wherein said front correction mechanism is provided on a front clamping mechanism and said rear correction mechanism is provided on a main beam.
  6. 6. The method for high-precision sawing of a Z-type material according to claim 3 or 5 wherein the feeding amount of the front correcting mechanism is designed to be precisely adjustable, the front correcting mechanism comprises a front guide rail arranged at the upper end of the clamping pressing plate, the front guide rail forms an included angle of 45 degrees with the feeding direction of the Z-type material, a front sliding plate is arranged on the front guide rail, a front top plate is arranged on the front sliding plate, front servo electric cylinders are arranged on two clamping side plates, the front servo electric cylinders are connected with the front sliding plate, and the feeding amount of the front correcting mechanism is precisely adjusted through the front servo electric cylinders.
  7. 7. The method of high precision sawing of a Z-type material according to claim 6 wherein the rear correction mechanism comprises a rear guide rail arranged on a main beam, the rear guide rail is perpendicular to the feeding direction of the Z-type material, a rear sliding top plate is arranged on the rear guide rail, an avoidance opening for the rear sliding top plate to extend out is arranged on the rear positioning plate, a rear driver is arranged on the main beam and is connected with the rear sliding top plate, and the rear driver is a cylinder or a servo electric cylinder.
  8. 8. The method for high-precision sawing of Z-shaped materials according to claim 7, wherein when the rear driver adopts a cylinder, the rear sliding top plate always applies rear jacking force to a rear suspension position of the Z-shaped materials, the feeding amount of the rear correcting mechanism can be adjusted in a passive adaptability mode according to the feeding amount of the front correcting mechanism, and when the rear driver adopts a servo electric cylinder, the feeding amount of the rear correcting mechanism is adjusted accurately through the servo electric cylinder.
  9. 9. The method of high precision sawing of a Z-type material according to claim 8 wherein said front top plate has a height from a work platen of The horizontal distance between the front end of the front top plate and the front end of the clamping pressing plate in the initial position is The height of the rear sliding top plate from the working table plate is The horizontal distance from the front end of the rear sliding top plate to the front end of the rear positioning plate in the initial position is Setting the corresponding height on the front side of the standard Z-shaped material The horizontal distance from the position to the front end face of the lower end of the standard Z-shaped material is The said Setting the corresponding height of the rear side surface of the standard Z-shaped material The horizontal distance from the position to the rear end face of the lower end of the standard Z-shaped material is The said 。
  10. 10. The method according to claim 9, wherein the test sample comprises two test profiles after the first-stage correction clamping test cutting, the upper ends or the lower ends of the two test profiles are aligned when the error is measured, and then the gap at the other end is measured to be Then ; When the lower ends of the two detection sectional materials are aligned and the upper ends have a gap, the front correction is needed, and the height in the design size of the standard Z-shaped sectional materials is known as follows Then it can be calculated that: ; ; ; ; when the upper ends of the two detection sectional materials are aligned, and the lower ends of the two detection sectional materials have gaps, the two detection sectional materials need to be corrected backwards, and then the calculation can be performed: ; 。

Description

Z-shaped material high-precision sawing method Technical Field The invention relates to the technical field of sawing of door and window profiles, in particular to a Z-shaped profile high-precision sawing method. Background Sawing is an indispensable procedure in the processing of door and window profiles, common sawing includes 45 ° sawing, 90 ° sawing and 135 ° sawing, the 45 ° sawing and 135 ° sawing are also collectively called chamfering, the 90 ° sawing is also called vertical sawing, and the sawing equipment used includes double-head sawing, triple-head sawing, sawing processing center and the like, and the sawing processing center generally refers to sawing equipment which integrates 45 ° sawing, 135 ° sawing and 90 ° sawing. At present, various sawing devices are relatively mature in development, and the sawing devices are different in terms of working principle and specific structural form. Whatever sawing equipment comprises a sawing machine head and a positioning and clamping mechanism matched with the sawing machine head for use, the existing positioning and clamping mechanism basically adopts four directions of front and back and up and down for positioning and clamping, and the existing sawing equipment for the sectional materials which are square in shape, high in structural strength and difficult to deform can basically meet the processing requirements. The Z-shaped material is a section with a cross section similar to a Z shape, wherein a bridge-cut-off aluminum section shown in fig. 18 is typical, and a Z-shaped section (which can be processed into a hanging piece) shown in fig. 19 is also typical, and the section has the greatest characteristic of suspending in the front and the rear. The bridge-cutoff aluminum profile comprises an aluminum part A, a heat insulation strip and an aluminum part B which are connected in sequence, the middle part needs to be connected and supported by a heat insulation strip. Taking the broken bridge aluminum profile saw cutting as an example, because the broken bridge aluminum profile is formed by rolling composite machine processing, the machining errors exist, in addition, the front and the rear of the broken bridge aluminum profile are suspended, the strength of the middle heat insulation strip is common, the factors are unfavorable for positioning and clamping, when the existing positioning and clamping mechanism is adopted for positioning and clamping the broken bridge aluminum profile, the broken bridge aluminum profile is in an inclined state (when the positioning and clamping mechanism is adopted for positioning and clamping, the aluminum part B at the lower end can be well positioned and clamped, and the aluminum part A at the upper end is easy to incline forwards or backwards) is positioned and clamped, so that the saw section is inclined when the broken bridge aluminum profile is sawed at 45 degrees and 135 degrees, two saw cutting surfaces cannot be attached when two saw cutting aluminum profiles are assembled at the corner, and gaps exist in the middle, which clearly seriously affect the door and window machining quality. Various attempts have been made in the prior art to improve the sawing accuracy of Z-type materials, however there are always some inadequacies. At present, the most commonly used and accepted mode is to design a special fixture (mould) for a specific section bar, and the solution can improve sawing precision, but the solution also has some defects, firstly, the cost is high, the fixture is special and cannot be used universally, the types and the sizes of the section bar are various, the cost is obviously increased only by arranging a plurality of sets of special fixtures, the special fixtures are replaced in actual use, the replacement is time-consuming and labor-consuming, the production efficiency is influenced, secondly, the sawing precision is improved but limited, the high-precision sawing processing requirement is not met in most cases, the main reason is that the adverse effect caused by the system error is not eliminated, namely, the special fixture is manufactured according to the design size of the Z-shaped material, but the special fixture cannot truly rightly clamp the Z-shaped material in most cases (in most cases, the Z-shaped material is clamped in a forward or backward inclined manner) due to the existence of the system error, and the further improvement of the sawing precision is limited. The system errors mainly comprise errors of the clamp, such as errors of clamp machining precision, errors of cylinder operation used for clamping or limiting, and the like, and all the adverse factors directly influence sawing precision of Z-shaped materials. Obviously, the problem of high-precision sawing of Z-type materials is not well solved in the prior art. Therefore, it is very necessary to perform systematic deep analysis on the Z-type material sawing process, and in particular, innovatively improve the Z-type mater