Unattended perforating machine

Abstract

The utility model relates to the field of perforating machines, and discloses an unattended perforating machine which comprises a machine base, a workbench, a perforating mechanism, a lifting machine head and a high-pressure water pump. The perforating mechanism comprises a rotating head, a hollow electrode and a guider, a guider mounting seat is provided with an adjusting mechanism for adjusting the guider to be perpendicular to a workpiece, and the rotating head is arranged on the lifting machine head; the high-pressure water pump is connected with the rotating head, and working fluid pressurized by the high-pressure water pump enters the hollow electrode through a hollow rotating shaft of the rotating head; the temperature measuring mechanism is arranged near the hollow electrode and is used for generating an electric signal when the temperature of the hollow electrode is abnormal; and the abnormality prevention mechanism is used for executing an abnormality prevention action based on the electric signal. When abnormal temperature is monitored, the puncher can give an alarm at the first time or stop punching work, so that higher loss and problems caused by high temperature are avoided, and unattended operation can be supported.

Description

TECHNICAL FIELD

[0001] The utility model relates to a perforating machine technical field, specifically to a kind of unattended perforating machine. BACKGROUND

[0002] Electric spark perforating machine is also called perforating machine, puncher, small hole machine, fine hole discharge machine, its working principle is to use the fine metal copper pipe of continuous up and down vertical movement as electrode, to workpiece for pulse spark discharge etching and removing metal forming.

[0003] Because hollow electrode used in the processing of electric spark perforating machine is hollow fine metal copper pipe with outer diameter of 0.1mm to 3.0mm, generally, basically use hollow electrode with outer diameter below 1.0mm, the hole in the middle of metal copper pipe is also divided into single hole and multiple holes, in processing, processing liquid needs to pass through hollow electrode, to cool down hollow electrode and workpiece, and flush out the residue in workpiece hole due to discharge etching, because the hole of hollow electrode is very small, it is easy to be blocked by impurities in processing liquid, or because of quality problem of hollow electrode itself, leading to hole blockage, in addition, hollow electrode is clamped too tightly by chuck, deformed and blocked, etc., processing liquid cannot flow out of hollow electrode, so that hollow electrode cannot be cooled down by processing liquid, and is burned and fused or burned and broken in processing discharge, the process time is very short, just a few seconds, at this time, if operator does not find the problem in time to stop machine, electric spark perforating machine discharge system will continue to discharge processing, because there is no residue removal and cooling of processing liquid, workpiece is damaged and / or electric spark perforating machine rotating head chuck is burned.

[0004] Based on the above reasons, the existing perforating machine still needs manual processing, and cannot realize completely automatic unmanned processing. INVENTION CONTENTS

[0005] The utility model aims at providing a kind of unattended perforating machine, can realize abnormal management in the case of unattended when processing temperature is too high, solve the problem of workpiece being damaged and electric spark perforating machine rotating head chuck being burned due to electrode temperature anomaly in prior art.

[0006] To achieve the above object, the utility model adopts the technical scheme of: a kind of unattended perforating machine, comprising: base, workbench, perforating mechanism, elevator head, high-pressure water pump;

[0007] The perforating mechanism includes rotating head, hollow electrode, guider, guider is installed on guider mounting seat, and is concentric with the hollow rotating shaft of rotating head, guider mounting seat is provided with adjusting mechanism for adjusting the perpendicularity of guider and workpiece, and rotating head is arranged on elevator head;

[0008] The high-pressure water pump is connected with rotating head, and the processing liquid pressurized by high-pressure water pump enters hollow electrode through the hollow rotating shaft of rotating head.

[0009] a temperature measuring mechanism arranged near the hollow electrode, the temperature measuring mechanism being configured to generate an electrical signal when the temperature of the hollow electrode is abnormal;

[0010] an abnormality prevention mechanism configured to perform an abnormality prevention action based on the electrical signal.

[0011] In the above solution, the abnormality prevention mechanism comprises an alarm mechanism configured to perform an alarm action based on the electrical signal, and / or a spent electrode removal unit configured to perform an action of removing an abnormal electrode based on the electrical signal.

[0012] In the above solution, the alarm mechanism is configured to alarm when the number of times that the temperature measuring mechanism generates the electrical signal within a set time exceeds a preset number of times.

[0013] In the above solution, the perforating machine comprises a water flushing device and a water flushing control mechanism electrically connected with the water flushing device, and the abnormality prevention mechanism is configured to control the water flushing control mechanism to stop the water flushing device based on the electrical signal.

[0014] In the above solution, the perforating machine comprises an electrical discharge system, and the abnormality prevention mechanism is configured to control the electrical discharge system to stop the electrical discharge machining of the hollow electrode based on the electrical signal.

[0015] In the above solution, the perforating machine comprises a clamping mechanism configured to prevent the hollow electrode from shaking during machining.

[0016] In the above solution, the clamping mechanism is arranged in a retractable or rotating structure.

[0017] In the above solution, the perforating machine comprises a clamping mechanism, and the temperature measuring mechanism is arranged at the clamping mechanism; and / or the temperature measuring mechanism moves up and down synchronously with the hollow electrode.

[0018] In the above solution, at least two sliding blocks are arranged on the track of the clamping mechanism to keep the hollow electrode clamped and the guide concentric when the clamping mechanism moves up and down.

[0019] In the above solution, the guide is arranged below the rotating head, and the temperature measuring mechanism is arranged between the guide and the rotating head.

[0020] In the above solution, the perforating machine comprises a spent electrode removal unit, the spent electrode removal unit has an electrode supporting function, and the spent electrode removal unit is provided with an electrode supporting mechanism.

[0021] In the above solution, the spent electrode removal unit comprises a clamping mechanism, and / or the spent electrode removal unit is movable up and down.

[0022] In the scheme, the perforating machine comprises an automatic electrode replacement system; the automatic electrode replacement system automatically replaces the hollow electrode based on the electric signal.

[0023] Thanks to the technical scheme, the utility model has the following advantages compared with the prior art:

[0024] The unattended perforating machine comprises a rotating head, a hollow electrode and a guider; a high-pressure water pump is connected with the rotating head; the machining liquid pressurized by the high-pressure water pump enters the hollow electrode through the hollow rotating shaft of the rotating head; the temperature of the electrode at the machining position is monitored by using the added temperature measuring mechanism; the temperature measuring mechanism is arranged near the hollow electrode; the temperature measuring mechanism is used to generate an electric signal when the temperature of the hollow electrode is abnormal; and the abnormality prevention mechanism is used to perform an abnormality prevention action based on the electric signal; when the abnormal temperature is monitored, the perforating machine can be stopped from perforating work in the first time or an alarm is given, so that greater loss and problems caused by high temperature are avoided, and the unattended machining with a higher degree of automation can be supported. BRIEF DESCRIPTION OF DRAWINGS

[0025] ATTACHMENT Figure 1 FIG. 1 is a schematic view of an unattended perforating machine in an embodiment of the utility model;

[0026] ATTACHMENT Figure 2 FIG. 2 is a structural schematic view of a temperature measuring mechanism in the unattended perforating machine in another embodiment of the utility model;

[0027] ATTACHMENT Figure 3 FIG. 3 is a structural schematic view of a clamping mechanism in the unattended perforating machine in an embodiment of the utility model;

[0028] In the drawings, 10 is a machine base, 20 is a workbench, 30 is a perforating mechanism, 40 is a lifting head, 50 is a high-pressure water pump, 31 is a rotating head, 32 is a hollow electrode, 33 is a guider, 60 is a temperature measuring mechanism, 70 is a water flushing device, 80 is a clamping mechanism, 81 is a sliding block, and 90 is an alarm mechanism. DETAILED DESCRIPTION

[0029] In the description of the utility model, it is necessary to explain, the term "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and so on indicate the orientation or position relation based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the indicated device or element must have a particular orientation, a particular orientation and operation, therefore, it cannot be understood as a limitation on the utility model;The terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance;In addition, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected;It can be mechanically connected, or electrically connected;It can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0030] As Figures 1-2 The utility model embodiment provides a kind of unattended perforating machine, comprising: base 10, workbench 20, perforating mechanism 30, elevator head 40, high-pressure water pump 50;

[0031] The perforating mechanism 30 includes rotating head 31, hollow electrode 32, guider 33, guider 33 is installed on guider mounting seat, and is concentric with the hollow rotating shaft of rotating head 31, guider mounting seat is provided with adjusting mechanism for adjusting the perpendicularity of guider 33 and workpiece, rotating head 31 is arranged on elevator head 40;

[0032] The high-pressure water pump 50 is connected with rotating head 31, and the processing liquid pressurized by high-pressure water pump 50 enters hollow electrode 32 via the hollow rotating shaft of rotating head 31;

[0033] Temperature measuring mechanism 60, the temperature measuring mechanism 60 is arranged near the hollow electrode 32, and the temperature measuring mechanism 60 is used to generate electrical signal when hollow electrode 32 temperature is abnormal;

[0034] Abnormality prevention mechanism is used for executing abnormality prevention action based on the electrical signal.

[0035] The above-mentioned electric signal is generally sent to the control system first, and then sent to the abnormality prevention mechanism and the like by the control system to further control other actions. The electric signal can also be directly sent to the abnormality prevention mechanism or other systems, such as the discharging system, and then sent to the control system by the other systems. The processing liquid can be water, saponification liquid, spark machine oil, and the like. When the abnormality prevention mechanism receives the electric signal indicating temperature abnormality (for example, when the temperature at the processing position of the hollow electrode exceeds the ambient temperature by 50 degrees), a pass or fail action can be made based on the electric signal, thereby controlling the execution of the abnormality prevention action.

[0036] The temperature measuring mechanism 60 can be a contact type (thermocouple) or a non-contact type (infrared temperature measurement), and is preferably waterproof. The workpiece refers to a workpiece to be perforated. The abnormality prevention mechanism can be arranged at any fixed position on the perforating machine or at a corresponding position based on the specific form and function of the abnormality prevention mechanism.

[0037] The perforating machine has two water pumps, one of which is a high-pressure water pump 50 for supplying high-pressure water to the copper pipe, and the other is an external auxiliary water pump for flushing the workpiece, which has relatively low water pressure. The high-pressure water pump 50 is connected to the rotating head 31 by a high-pressure water pipe.

[0038] The abnormality prevention mechanism includes an alarm mechanism 90 and / or a waste electrode removal part, the alarm mechanism 90 is configured to perform an alarm action based on the electric signal; and the waste electrode removal part is configured to perform an action of removing the abnormal electrode based on the electric signal.

[0039] In addition, the alarm mechanism 90 is configured to alarm when the number of times that the temperature measuring mechanism 60 generates the electric signal within a set time exceeds a preset number of times. The alarm mechanism 90 can be an audible and visual alarm device.

[0040] When the temperature is abnormal, the temperature measuring mechanism 60 generates an electric signal. At this time, it can be due to the fact that there are too many particulate impurities in the processing liquid, which is not suitable for continuous processing. The action of removing the abnormal electrode can be performed by the waste electrode removal part to temporarily stop the processing. If it is a very thin hollow electrode, such as a diameter of 0.3 mm or less, it can be instantaneously fused and cannot automatically remove the waste electrode. An alarm can be given to prompt the operator to replace the processing liquid and clean the pipeline.

[0041] The perforating machine includes a water flushing device 70 and a water flushing control mechanism, the water flushing control mechanism is electrically connected to the water flushing device 70, and the abnormality prevention mechanism is configured to cause the water flushing control mechanism to control the water flushing device 70 to stop working based on the electric signal.

[0042] When the temperature is abnormal, the temperature measuring mechanism 60 generates an electrical signal, at which time the processing liquid supply to the copper pipe needs to be stopped, otherwise the copper pipe has been burned off and continues to spray processing liquid, which is easy to cause the machine tool bed and the surrounding ground to be watered. The abnormality prevention mechanism can include a flushing control mechanism, or the abnormality prevention mechanism and the flushing control mechanism are integrally formed, or the abnormality prevention mechanism and the flushing control mechanism are connected to control the flushing control mechanism.

[0043] The perforating machine includes a discharge system, and the abnormality prevention mechanism is configured to stop the discharge processing of the hollow electrode based on the electrical signal.

[0044] Ensure that the discharge can be stopped in time to prevent the hollow electrode from burning off the electrode chuck of the rotary head 31, and prevent the hollow electrode from melting and being inconvenient for subsequent waste electrode removal; the abnormality prevention mechanism can include a discharge system, or the abnormality prevention mechanism and the discharge system are integrally formed, or the abnormality prevention mechanism and the discharge system are connected to control the flushing control mechanism.

[0045] The perforating machine includes a clamping mechanism 80 for preventing the hollow electrode from shaking during processing; and / or, the clamping mechanism 80 is provided as a retractable or rotating structure.

[0046] The main function of the clamping mechanism 80 is to support the electrode to prevent the hollow electrode from shaking during processing and reduce the waste of the hollow electrode 32.

[0047] As shown in Figure 3 The perforating machine includes a clamping mechanism 80, and the temperature measuring mechanism 60 is arranged at the clamping mechanism 80; and / or, the temperature measuring mechanism 60 moves up and down synchronously with the hollow electrode.

[0048] In this way, the temperature measuring mechanism 60 can accompany and continuously approach the hollow electrode processing position, and the measured temperature is more accurate and reliable.

[0049] At least two sliding blocks 81 are arranged on the track of the clamping mechanism 80 to keep the clamped hollow electrode concentric with the guide when the clamping mechanism 80 moves up and down.

[0050] The at least two sliding blocks 81 can ensure that the clamping part is determined by at least two points to form a straight line, and the hollow electrode and the temperature measuring mechanism 60 do not shake when moving up and down, and the positioning is more accurate.

[0051] The guide 33 is arranged below the rotary head 31, and the temperature measuring mechanism 60 is arranged between the guide 33 and the rotary head 31. This facilitates the temperature measuring mechanism 60 to measure more accurate temperature.

[0052] The electrode taking device comprises an electrode supporting function, and the electrode taking device is provided with an electrode supporting mechanism.

[0053] In some cases, the electrode taking device comprises a clamping mechanism 80; that is, the electrode taking device can perform the action of taking the electrode when it is necessary to take out the waste electrode, and can also realize the electrode supporting function in the form of the clamping mechanism 80 during the machining process.

[0054] In some cases, the electrode taking device can move up and down to follow the hollow electrode to move up and down, so as to facilitate the realization of better electrode supporting function in the form of the clamping mechanism 80 during the machining process.

[0055] The electrode taking device comprises an electrode supporting function, and the electrode taking device is provided with an electrode supporting mechanism.

[0056] The above embodiments are only for illustrating the technical concept and characteristics of the utility model, and the purpose is to enable persons skilled in the art to understand the content of the utility model and implement it, and cannot limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit and essence of the utility model shall be covered within the protection scope of the utility model.

Claims

1. An unattended puncher characterized by, The invention relates to a perforating machine comprising: a machine base, a worktable, a perforating mechanism, a lifting head, a high-pressure water pump; the perforating mechanism comprises a rotating head, a hollow electrode, and a guide, the guide is mounted on a guide mounting seat and concentric with the hollow rotating shaft of the rotating head, the guide mounting seat is provided with an adjusting mechanism for adjusting the perpendicularity of the guide to the workpiece, and the rotating head is arranged on the lifting head; the high-pressure water pump is connected with the rotating head, and the machining liquid pressurized by the high-pressure water pump enters the hollow electrode through the hollow rotating shaft of the rotating head; a temperature measuring mechanism is arranged near the hollow electrode, and the temperature measuring mechanism is used to generate an electric signal when the temperature of the hollow electrode is abnormal; an abnormality prevention mechanism is used to perform an abnormality prevention action based on the electric signal.

2. The unattended puncher of claim 1, wherein, The abnormality prevention mechanism comprises an alarm mechanism and / or a spent electrode removal part, the alarm mechanism is used to perform an alarm action based on the electric signal; and the spent electrode removal part is used to perform an action of removing the abnormal electrode based on the electric signal. Furthermore, the alarm mechanism is used to alarm when the number of times that the temperature measuring mechanism generates the electric signal within a set time exceeds a preset number of times.

3. The unattended punch of claim 1, wherein, The perforating machine comprises a water flushing device and a water flushing control mechanism, the water flushing control mechanism is electrically connected with the water flushing device, and the abnormality prevention mechanism is configured to make the water flushing control mechanism control the water flushing device to stop working based on the electric signal.

4. The unattended punch of claim 1, wherein, The perforating machine comprises an electrical discharge system, and the abnormality prevention mechanism is configured to make the electrical discharge system stop the electrical discharge machining of the hollow electrode based on the electric signal.

5. The unattended punch of claim 1, wherein, The perforating machine comprises a clamping mechanism for preventing the hollow electrode from shaking during machining; Furthermore, the clamping mechanism is provided in a retractable or rotating structure.

6. The unattended punch of claim 5, wherein, The perforating machine comprises a clamping mechanism, and the temperature measuring mechanism is arranged at the clamping mechanism; and / or the temperature measuring mechanism moves up and down synchronously with the hollow electrode.

7. The unattended punch of claim 6, wherein, At least two sliding blocks are arranged on the track of the clamping mechanism to keep the hollow electrode clamped concentric with the guide when the clamping mechanism moves up and down.

8. The unattended punch of claim 1, wherein, The guide is arranged below the rotating head, and the temperature measuring mechanism is arranged between the guide and the rotating head.

9. The unattended punch of claim 2, wherein, The perforating machine comprises a spent electrode removal part, the spent electrode removal part has an electrode supporting function, and the spent electrode removal part is provided with an electrode supporting mechanism, Furthermore, the spent electrode removal part comprises a clamping mechanism, and / or the spent electrode removal part is movable up and down.

10. The unattended punch of claim 1, wherein, The perforating machine comprises an automatic electrode replacement system, and the automatic electrode replacement system automatically replaces the hollow electrode based on the electric signal.

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