WO2021042683A1

WO2021042683A1 - Method and apparatus for detecting machining datum

Info

Publication number: WO2021042683A1
Application number: PCT/CN2020/077201
Authority: WO
Inventors: 姚遥; 许亚东; 吴伯余; 单剑锋; 丁仁杰; 刘送永; 江红祥
Original assignee: 南通跃通数控设备股份有限公司; 中国矿业大学
Priority date: 2019-09-05
Filing date: 2020-02-28
Publication date: 2021-03-11
Also published as: CN110539368A

Abstract

A method and an apparatus for detecting a datum of lock hole and hinge slot machining equipment. The method comprises the following steps: place a workpiece to be machined (5) on a worktable (32) of lock hole and hinge slot machining equipment (3); provide a sensing probe (6), connected to a numerical control device (7) on the lock hole and hinge slot machining equipment, on a numerical control moving axis mechanism (4) near an end (52) of said workpiece; the numerical control device controls the numerical control moving axis mechanism to move to the end of said workpiece; and when the numerical control moving axis mechanism moves to a position where the sensing probe senses said workpiece, the sensing probe sends a signal to control the numerical control device to set the position as a machining datum. By sensing the position of the end of said workpiece by the sensing probe and using the position as the machining datum, the error in the determination of the machining datum by measuring the length of said workpiece by a measuring device can be avoided.

Description

Method and device for detecting processing benchmark

Technical field

The invention relates to a detection method, in particular to a method and a device for detecting processing benchmarks.

Background technique

The lock reaming slot processing machine is a very important equipment in woodworking machinery. The lock reaming slot processing machine is mainly used to process wooden doors, door frames, window frames, window sash slots, door locks, door lock steps, and door lock hinges. Finished; used for milling and drilling slot forming of wooden door plane and side keyhole shape, and can also be used for slotting and drilling of wooden furniture; convenient and accurate control of door lock slot and hinge processing and production requirements.

In the prior art lock reaming slot processing machine, during the processing of the hole slot of the workpiece to be processed, the workpiece to be processed is usually installed and fixed on the worktable first, and the top end is pressed against the front datum, in order to ensure the processing of the bottom hinge The dimensional accuracy of the position usually requires the bottom end of the workpiece to be processed as a reference, the processing position of multiple hinge groove processing tools is adjusted through a numerical control device, and the multiple hinge groove processing tools are controlled to process the hinge groove on the workpiece at the same time.

In the process of implementing the present invention, the inventor found that the prior art has at least the following problems:

In the prior art, a measuring device is usually added to the numerical control device, and the position of the bottom end of the workpiece to be processed is determined by measuring the length of the reference before the distance by the measuring device. Because there will be certain errors in the measurement of the distance and the positioning of the workpiece to be processed, As a result, the accuracy of the processing position of the bottom hinge cannot be ensured, resulting in low processing accuracy and unable to meet customer requirements.

Summary of the invention

In order to solve the above-mentioned technical problems in the prior art, the embodiments of the present invention provide a method and a device for detecting processing benchmarks. The specific technical solutions are as follows:

In a first aspect, a method for detecting a machining datum is provided, which is used to determine a machining datum for machining a lock reaming slot, wherein the method for detecting a machining datum includes the following steps:

Place the parts to be processed on the worktable of the lock reaming slot processing machine;

An induction probe is arranged on the numerical control moving axis mechanism close to the end of the workpiece to be processed, and is connected with the numerical control device on the lock reaming slot processing machine;

The numerical control device controls the numerical control moving axis mechanism to move to the end of the workpiece; and

When the numerical control moving axis mechanism moves to the position where the inductive probe senses the workpiece to be processed, the inductive probe sends a signal to control the numerical control device to set the position as the processing reference.

In the first possible implementation manner of the first aspect, it further includes the following steps:

The numerical control device drives the processing mechanism to its corresponding processing position through the numerical control moving axis mechanism according to the processing reference.

In the second possible implementation manner of the first aspect, the method of placing the workpiece to be processed on the worktable of the keyhole machine includes the following steps:

Adjust the width of the workbench;

Place the parts to be processed on the drive track of the lock reaming slot processing machine;

Control the rotation of the driving track to transport the workpiece to the worktable and abut on the front datum; and

Control a plurality of compression cylinders to descend, compress the workpieces to be processed, and press and fix the workpieces to be processed on the worktable.

In the third possible implementation manner of the first aspect, the method of arranging an induction probe on the numerically controlled moving axis mechanism close to the end of the workpiece to be processed further includes the following steps:

A support plate is vertically arranged on the numerical control moving axis mechanism close to the end of the workpiece to be processed;

An induction probe is installed on the upper end of the support plate and connected with the numerical control device on the lock reaming slot processing machine.

In a second aspect, a device for detecting processing benchmarks is provided, which is provided on the numerical control moving axis mechanism of a lock reaming slot processing machine for determining the benchmarks of the lock reaming slot processing machine, characterized in that the device for detecting processing benchmarks includes :

An induction probe is arranged on the numerical control moving axis mechanism close to the end of the workpiece, and is connected with the numerical control device on the lock reaming slot processing machine. The numerical control device can drive the numerical control moving shaft mechanism to move to the end of the workpiece, And drive the sensing probe to move to the end of the workpiece;

Wherein, when the numerical control device drives the numerical control moving axis mechanism to move to the end of the workpiece, and drives the sensing probe to move, when the numerical control moving axis mechanism moves to the position where the sensing probe senses the workpiece to be processed, the sensing probe sends a signal, Control the numerical control device to set the position as the processing reference.

In the first possible implementation manner of the second party, the lock reaming groove processing machine further includes:

One machine

A workbench is set on the machine platform, and the workbench is used to place the parts to be processed;

At least one drive crawler is arranged on the machine platform, and at least one drive crawler is used to transport the workpiece to be processed; and

A front datum is set on the worktable, and the front datum is used to position the front end of the workpiece.

In combination with the first possible implementation manner of the second party, in the second possible implementation manner of the second party, the numerical control device further includes:

The numerical control motor is set on the machine table; and

The drive screw is arranged on the machine table in parallel with the worktable and is connected with the numerical control motor. The screw pair of the drive screw is connected with the numerical control moving shaft mechanism close to the end of the workpiece to be processed, and the numerical control motor rotates by driving the drive screw , And drive the numerical control moving axis mechanism close to the end of the workpiece to be processed to move closer to the end of the workpiece to be processed, and drive the sensing probe to move to the end of the workpiece to be processed.

In the third possible implementation of the second party, the sensing probe is a laser probe.

Compared with the prior art, the present invention has the following advantages:

The invention senses the position of the bottom end of the workpiece to be processed by the induction probe and uses it as the processing reference, which can avoid errors in determining the processing reference due to the way the measuring device measures the length of the workpiece to be processed, thereby ensuring the processing of the hinge groove Accuracy.

Description of the drawings

In order to explain the technical solutions in the embodiments of the present invention more clearly, the following will briefly introduce the drawings needed in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained from these drawings without creative work.

Fig. 1 is a schematic flow chart of the steps of a method for detecting processing benchmarks according to an embodiment of the present invention.

Fig. 2 is a schematic flow chart of the steps of the method of placing the workpiece on the worktable of the reaming groove processing machine according to an embodiment of the present invention.

Fig. 3 is a schematic flow chart of the steps of setting an induction probe on the numerically controlled moving axis mechanism close to the end of the workpiece according to an embodiment of the present invention.

Fig. 4 is a schematic diagram of the structure of the device for detecting processing datums of the first and second embodiments of the present invention installed on a lock reaming groove processing machine.

detailed description

In order to make the objectives, technical solutions and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.

In an embodiment of the present invention, please refer to Fig. 1 and Fig. 4 at the same time. Fig. 1 shows a schematic diagram of the step flow of a method 1 for detecting a machining reference according to an embodiment of the present invention, and Fig. 4 shows a device 2 for detecting a machining reference. A schematic diagram of the structure set on the lock reaming slot processing machine 3. The method 1 for detecting processing standards shown in this embodiment is used to determine the processing standards of the lock reaming slot processing machine 3. The method 1 for detecting processing standards includes the following steps 101-104, among which:

Step 101: Place the workpiece 5 to be processed. The workpiece 5 to be processed is placed on the worktable 32 of the reaming groove processing machine 3, and the front end thereof abuts against the front datum 34.

Specifically, please refer to FIG. 2, which shows a schematic flow diagram of the steps of a method of placing the workpiece 5 to be processed on the worktable 32 of the reaming slot processing machine 3 according to an embodiment of the present invention. The method 8 of placing the workpiece 5 to be processed on the worktable 32 of the lock reaming groove processing machine 3 includes the following steps 801-804, wherein:

Step 801: Adjust the workbench 32.

Specifically, according to the width of the workpiece 5 to be processed, the first working table 321 is controlled to move along the Y-axis direction, and the distance between the first working table 321 and the second working table 322 is adjusted.

In step 802, the workpiece 5 to be processed is placed. The workpiece 5 to be processed is placed on the driving track 33 of the lock reaming groove processing machine 3.

Specifically, the workpiece 5 to be processed can be manually placed on the drive track 33 of the lock reaming slot processing machine 3, or the workpiece 5 can be placed on the drive track 33 of the lock ream slot processing machine 3 by a mechanical arm. 33, but not limited to this. The workpiece 5 to be processed may be a door leaf or a door frame, but it is not limited to this.

Step 803, the workpiece 5 to be processed is transmitted. The driving crawler 33 is controlled to rotate, and the workpiece 5 to be processed is transported to the worktable 32 and abutted on the front datum 34.

Specifically, the driving device drives the transmission crawler 33 to rotate to drive the workpiece 5 to be processed to move toward the worktable 32 until it moves to the worktable 32, and the front end 51 of the workpiece 5 to be processed abuts on the front datum 34.

Step 804, pressing and fixing the workpiece 5 to be processed. Control a plurality of compression cylinders 301 to descend, press the workpiece 5 to be processed, and press and fix the workpiece 5 to the worktable 32.

Specifically, the piston rods of the plurality of pressing cylinders 301 are controlled to extend downward and abut against the upper end of the workpiece 5 to be processed, and the workpiece 5 to be processed is compressed and fixed on the worktable 32.

Step 102: Set the sensing probe 6. An induction probe 6 is arranged on the numerical control moving axis mechanism 4 close to the end 52 of the workpiece 5 to be processed, and is connected to the numerical control device 7 on the lock reaming slot processing machine 3.

Specifically, please refer to FIG. 3, which shows a schematic flow diagram of the steps of setting a sensing probe 6 on the numerically controlled moving axis mechanism 4 close to the end 52 of the workpiece 5 according to an embodiment of the present invention. The method 9 of arranging an induction probe 6 on the numerically controlled moving axis mechanism 4 close to the end 52 of the workpiece 5 to be processed further includes the following steps 901-903, wherein:

Step 901, a support plate 61 is set. A support plate 61 is vertically arranged on the numerically controlled moving axis mechanism 4 close to the end 52 of the workpiece 5 to be processed.

Specifically, one end of the support plate 61 is vertically mounted on the numerical control moving axis mechanism 4 close to the end 52 of the workpiece 5 by screws, and is located outside the numerical control moving axis mechanism 4, but it is not limited to this.

In step 902, the sensing probe 6 is set. An induction probe 6 is installed on the upper end of the support plate 61 and connected with the numerical control device 7 on the lock reaming slot processing machine 3.

Specifically, the sensing probe 6 is installed and fixed on the support plate 61 so that the sensing probe 6 can move with the lock reaming slot processing machine 3, and then the sensing probe 6 is connected to the numerical control device 7 on the lock reaming slot processing machine 3 through a wire. Connect, but not limited to this.

Step 103, searching for processing benchmarks. The numerical control device 7 controls the numerical control moving axis mechanism 4 to move to the end 52 of the workpiece 5 to be processed.

Specifically, the numerical control device 7 is activated to perform numerical control programming. The numerical control device 7 controls the numerical control moving axis mechanism 4 to move to the end 52 of the workpiece 5, and at the same time drives the sensing probe 6 to move toward the end 52 of the workpiece 5 to find Processing benchmark.

Step 104: Position the processing datum. When the numerical control moving axis mechanism 4 moves to the position where the sensing probe 6 senses the workpiece 5 to be processed, the sensing probe 6 sends a signal to control the numerical control device 7 to set the position as a processing reference.

Specifically, when the CNC moving axis mechanism 4 moves to the position where the sensing probe 6 senses the workpiece 5, the position sensed at this time is the bottom end 52 of the workpiece 5, and the sensing probe 6 sends a signal to control the CNC The device 7 sets the bottom end 52 of the workpiece 5 to be processed as a processing reference.

In a preferred embodiment, the method 1 for detecting processing benchmarks further includes the following step 105, wherein:

Step 105: Adjust the processing position of the CNC moving axis mechanism 4. The numerical control device 7 drives the processing mechanism to its corresponding processing position through the numerical control moving axis mechanism 4 according to the processing reference.

Specifically, numerical control programming is performed, with the machining reference as the zero point, the numerical control device 7 drives the machining mechanism to move to its corresponding machining position in turn through the numerical control moving axis mechanism 4 on the side close to the end 52 of the workpiece 5, and is fixed.

The method 1 of the present invention for detecting the processing datum senses the position of the bottom end of the workpiece 5 to be processed by the sensing probe 6 and uses it as the processing datum, which can avoid the existence of determining the processing datum by measuring the length of the workpiece 5 by the measuring device. Therefore, the machining accuracy of the hinge groove is ensured.

In the second embodiment of the present invention, please refer to FIG. 4, which shows a schematic diagram of the structure of the device 2 for detecting processing fiducials of the second embodiment of the present invention disposed on the reaming groove processing machine 3. The device 2 for detecting processing benchmarks shown in this embodiment is provided on the numerically controlled moving axis mechanism 4 of the lock ream slot processing machine 3 and is used to determine the benchmark of the lock ream slot processing machine 3.

The device 2 for detecting the processing reference includes an inductive probe 6. The inductive probe 6 is preferably a laser probe, but it is not limited to this. The induction probe 6 is arranged on the numerical control moving axis mechanism 4 close to the end 52 of the workpiece 5, and is connected to the numerical control device 7 on the lock reaming slot processing machine 3. The numerical control device 7 can drive the numerical control moving shaft mechanism 4 to the waiting The end 52 of the workpiece 5 moves and drives the sensing probe 6 to move to the end 52 of the workpiece 5 to be processed. The part to be processed 5 shown in this embodiment is a door leaf, but it is not limited to this. Those skilled in the art can also choose to apply it to the determination of the processing benchmarks of other parts to be processed 5 according to the teaching of this embodiment. For example, door frames.

In a preferred embodiment, the numerical control device 7 further includes a numerical control motor 71 and a transmission screw 72. The numerical control motor 71 is arranged on the machine table 31 and is located on the side away from the front end 51 of the workpiece 5 to be processed. The working table 32 is arranged in parallel on the machine table 31 and connected with the numerical control motor 71, and the screw pair of the transmission screw 72 is connected with the numerical control moving shaft mechanism 4 close to the end 52 of the workpiece 5.

The numerical control motor 71 drives the transmission screw 72 to rotate, and drives the numerical control moving axis mechanism 4 close to the end 52 of the workpiece 5 to move to the end 52 close to the workpiece 5, and drives the sensing probe 6 to approach the end 52 to be processed The end 52 of the piece 5 moves, but the structure of the numerical control device 7 is not limited to this, and those skilled in the art can also choose other suitable numerical control devices 7 according to the teaching of this embodiment.

When the CNC moving axis mechanism 4 moves to the position where the sensing probe 6 senses the workpiece 5, the position sensed at this time is the end 52 of the workpiece 5, and the sensing probe 6 sends a signal to control the CNC device 7 The position (that is, the position of the end 52 of the part to be processed 5) is set as the processing reference, so as to realize the detection of the processing reference of the part to be processed 5 through the inductive probe 6, which can prevent the measuring device used in the prior art from measuring the part to be processed The length of the hinge is used to determine the error existing in the machining reference, thereby ensuring the machining accuracy of the hinge groove.

In a preferred embodiment, the lock reaming groove processing machine 3 further includes a machine table 31, a work table 32, at least one transmission track 33 and a front datum 34. The work table 32 is arranged on the machine table 31 and the work table 32 Used to place the parts to be processed 5. The workbench 32 disclosed in this embodiment also includes a first workbench 321 and a second workbench 322 that are arranged oppositely. The first workbench 321 can move along the X-axis and Y-axis directions of the machine platform 31, and the second workbench 322 can move along the X-axis direction of the machine platform 31.

Before placing the workpiece 5 to be processed, the first worktable 321 is controlled to move along the Y-axis direction according to the width of the workpiece 5 to be processed, the distance between the first worktable 321 and the second worktable 322 is adjusted, and the workpiece 5 to be processed is moved When reaching the first workbench 321 and the second workbench 322, the workpiece 5 to be processed is driven to move along the X axis through the first workbench 321 and the second workbench 322 for processing, but the structure of the workbench 32 is not Limited to this, those skilled in the art can also choose other suitable structure of the workbench 32 according to the teaching of this embodiment.

At least one driving crawler 33 is arranged on the machine platform 31. The at least one transmission track 33 disclosed in this embodiment is arranged between the first workbench 32 and the second workbench 32, but it is not limited to this. This embodiment further discloses that the number of at least one driving crawler 33 is two, and the two driving crawlers 33 are arranged in parallel between the first working table 321 and the second working table 322, but it is not limited thereto.

When the workpiece 5 to be processed is placed 5 on the at least one driving crawler 33, the driving device drives the at least one driving crawler 33 to rotate, driving the workpiece 5 to be processed to move toward the worktable 32 to transport the workpiece 5 to be processed. The front datum 34 is set on the worktable 32. When at least one driving crawler 33 is transported to the worktable 32, the front end 51 of the workpiece 5 to be processed abuts on the front datum 34 to prevent it from continuing to move, thereby the workpiece 5 to be processed Positioning, but not limited to this.

The above description shows and describes several preferred embodiments of the present invention, but as before, it should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as an exclusion of other embodiments, but can be used for various other embodiments. Combinations, modifications, and environments can be modified through the above teachings or technology or knowledge in related fields within the scope of the inventive concept herein. The modifications and changes made by those skilled in the art do not depart from the spirit and scope of the present invention, and should fall within the protection scope of the appended claims of the present invention.

Claims

A method for detecting a machining datum is used for determining a datum of a lock reaming slot processing machine, characterized in that the method for detecting a machining datum includes the following steps:

Placing the workpiece to be processed on the worktable of the lock reaming slot processing machine;

An induction probe is arranged on the numerical control moving axis mechanism close to the end of the workpiece to be processed, and is connected with the numerical control device on the lock reaming slot processing machine;

The numerical control device controls the numerical control moving axis mechanism to move to the end of the workpiece; and

When the numerical control moving axis mechanism moves to the position where the sensing probe senses the workpiece to be processed, the sensing probe sends a signal to control the numerical control device to set the position as a processing reference.
The method for detecting processing benchmarks according to claim 1, characterized in that it further comprises the following steps:

The numerical control device drives the processing mechanism to move to its corresponding processing position through the numerical control moving axis mechanism according to the processing reference.
The method for detecting processing benchmarks according to claim 1, wherein the method of placing the workpiece to be processed on the worktable of the keyhole machine comprises the following steps:

Adjust the width of the worktable;

Placing the workpiece to be processed on the drive track of the lock reaming slot processing machine;

Control the rotation of the driving crawler to transport the workpiece to be processed to the worktable and abut on the front backing; and

Controlling a plurality of pressing cylinders to descend, pressing on the workpiece to be processed, and pressing and fixing the workpiece to be processed on the worktable.
The method for detecting processing benchmarks according to claim 1, wherein the method of arranging an induction probe on the numerically controlled moving axis mechanism near the end of the workpiece to be processed further comprises the following steps:

A support plate is vertically arranged on the numerical control moving axis mechanism close to the end of the workpiece to be processed;

The sensing probe is installed on the upper end of the support plate and connected with the numerical control device on the lock reaming slot processing machine.
A device for detecting processing benchmarks is arranged on the numerical control moving axis mechanism of a lock reaming slot processing machine, and used for determining the benchmarks of the lock reaming slot processing machine. The device is characterized in that the device for detecting processing benchmarks includes:

An induction probe is arranged on the numerical control moving axis mechanism near the end of the workpiece to be processed, and is connected to the numerical control device on the lock reaming slot processing machine, and the numerical control device can drive the numerical control moving shaft mechanism to the Moving the end of the part to be processed, and drive the sensing probe to move to the end of the part to be processed;

Wherein, when the numerical control device drives the numerical control moving axis mechanism to move to the end of the workpiece to be processed and drives the sensing probe to move, when the numerical control moving axis mechanism moves until the sensing probe senses everything When the position of the workpiece to be processed is described, the sensing probe sends a signal to control the numerical control device to set the position as a processing reference.
The device for detecting processing benchmarks according to claim 5, wherein the lock reaming groove processing machine further comprises:

One machine

A workbench, which is set on the machine platform, and the workbench is used to place the workpiece to be processed;

At least one drive crawler is arranged on the machine platform, and the at least one drive crawler is used to transport the workpiece to be processed; and

A front backer is arranged on the workbench, and the front backer is used for positioning the front end of the workpiece to be processed.
The method for detecting processing benchmarks according to claim 6, wherein the numerical control device further comprises:

A numerically controlled motor is set on the machine table; and

The drive screw is arranged on the machine table in parallel with the worktable and is connected to the numerical control motor. The screw pair of the drive screw is connected to the end of the workpiece close to the workpiece. The numerical control moving shaft mechanism is connected, and the numerical control motor drives the numerical control moving shaft mechanism close to the end of the workpiece to be processed by driving the transmission screw to rotate, and moves toward the end of the workpiece to be processed, and The sensing probe is driven to move to the end of the workpiece.
The method for detecting processing benchmarks according to claim 5, wherein the sensing probe is a laser probe.