CN220637191U - A broken sword detection device and numerical control lathe for numerical control lathe - Google Patents

Abstract

The application relates to the technical field of numerically controlled lathes, and specifically discloses a broken cutter detection device for a numerically controlled lathe and the numerically controlled lathe, wherein the broken cutter detection device comprises: the insulating piece is arranged between the lathe body and the main shaft or between the lathe body and the tool rest assembly; the controller is electrically connected with the main shaft and the tool rest assembly; the time delay module is electrically connected with the controller, and is connected with the main shaft through a weak current signal wire if the insulating piece is arranged between the lathe body and the main shaft, and is connected with the tool rest assembly through a weak current signal wire if the insulating piece is arranged between the lathe body and the tool rest assembly; the broken cutter detection device can detect that the cutter is broken in the machining process, so that the situation that defective products are generated due to the fact that the cutter cannot be detected to be broken in the machining process is effectively avoided.

Description

A broken sword detection device and numerical control lathe for numerical control lathe

Technical Field

The utility model belongs to the technical field of numerical control lathes, and particularly relates to a cutter breakage detection device for a numerical control lathe and the numerical control lathe.

Background

The existing numerical control lathe comprises a lathe body, a main shaft and a tool rest assembly, wherein at least one tool is arranged on the tool rest assembly, the main shaft can clamp a part to be machined and drive the part to be machined to rotate, and the tool rest assembly can drive the tool to move along the X-axis direction and the Z-axis direction so as to machine the part to be machined. In the machining process, a plurality of cutters are usually required, the working flow of the existing numerical control lathe for machining a part to be machined is shown in fig. 1, specifically, taking the case that three cutters are required in the machining process, the working flow of the numerical control lathe is as follows: 1. machining the part to be machined by using a first cutter; 2. machining the part to be machined by using a second cutter; 3. and processing the part to be processed by using a third cutter. In the machining process, if any one or more of the three cutters are broken, the machining of the part to be machined fails and defective products are generated, and the defective products can only be discarded, so that the conventional numerical control lathe has the problem that the machining cost of the numerical control lathe is increased due to the fact that the defective products are generated because the breakage of the cutters cannot be detected in the machining process.

Accordingly, the prior art is subject to improvement and development.

Disclosure of Invention

The utility model aims at providing a broken knife detection device and numerical control lathe for numerical control lathe can detect the cutter and take place to fracture in the course of working to avoid appearing effectively because the condition that can't detect the cutter and take place to fracture and lead to producing the defective products in the course of working.

In a first aspect, the present application provides a broken knife detection device for numerical control lathe for detect whether the cutter of numerical control lathe takes place to fracture, numerical control lathe includes lathe body, main shaft and knife rest subassembly, and main shaft and knife rest subassembly are all installed on lathe body, and the main shaft is used for the centre gripping to wait to process the part and drive to wait to process the part rotation, and knife rest subassembly is used for installing the cutter and drives the cutter and remove, and lathe body, main shaft, knife rest subassembly, wait to process the material of part and cutter and be electrically conductive material, and broken knife detection device for numerical control lathe includes:

the insulating piece is arranged between the lathe body and the main shaft or between the lathe body and the tool rest assembly;

the controller is electrically connected with the main shaft and the tool rest assembly;

and the time delay module is electrically connected with the controller, and is connected with the spindle through a weak current signal wire if the insulating piece is arranged between the lathe body and the spindle, and is connected with the tool rest assembly through a weak current signal wire if the insulating piece is arranged between the lathe body and the tool rest assembly.

The utility model provides a broken knife detection device for numerical control lathe can detect the cutter and take place to break in the course of working to avoid appearing effectively because the condition that the cutter broken and lead to producing the defective goods in the course of working can't be detected, and then reduce numerical control lathe's processing cost effectively.

Further, the tool rest assembly comprises an X-axis linear carriage, a Z-axis linear carriage and a conductive tool carrier, wherein the X-axis linear carriage comprises a first carriage, the Z-axis linear carriage comprises a second carriage, the Z-axis linear carriage is mounted on the lathe body, the X-axis linear carriage is mounted on the second carriage, the conductive tool carrier is mounted on the first carriage, and at least one tool bearing table is mounted on the conductive tool carrier.

Further, the insulating piece is arranged between the Z-axis linear carriage and the lathe body, and the time delay module is connected with the Z-axis linear carriage, the X-axis linear carriage, the conductive knife bracket or the knife bearing table through weak current signal lines.

Further, the insulating piece is arranged between the second carriage and the X-axis linear carriage, and the time delay module is connected with the X-axis linear carriage, the conductive knife bracket or the knife bearing table through a weak current signal line.

Further, the insulating piece is arranged between the conductive knife bracket and the first carriage, and the delay module is connected with the conductive knife bracket or the knife bearing table through a weak current signal wire.

Further, the insulator is arranged between the conductive knife bracket and the knife bearing table, and the delay module is connected with the knife bearing table through a weak current signal wire.

Further, the numerically controlled lathe further comprises a first protection cover, and the first protection cover is installed on the X-axis linear carriage.

The first protective cover can prevent metal scraps produced in the machining process from falling onto the X-axis linear carriage, so that the technical scheme can effectively avoid the situation that the X-axis linear carriage is damaged or blocked due to the fact that the metal scraps produced in the machining process fall onto the X-axis linear carriage, and the service life of the X-axis linear carriage is prolonged effectively.

Further, the numerical control lathe also comprises a second protective cover, and the second protective cover is arranged on the Z-axis linear carriage.

The second safety cover can prevent that the metal piece that produces in the course of working from falling on the Z axle straight line planker, therefore this technical scheme can avoid appearing effectively that the metal piece that produces in the course of working falls on the Z axle straight line planker and leads to the damage of Z axle straight line planker or the dead condition of card to prolong the life of Z axle straight line planker effectively.

Further, the tool rest assembly comprises an X-axis linear carriage, a Z-axis linear carriage and at least one tool bearing platform, the insulating piece comprises an insulating tool carrier, the X-axis linear carriage comprises a first carriage, the Z-axis linear carriage comprises a second carriage, the Z-axis linear carriage is mounted on the lathe body, the X-axis linear carriage is mounted on the second carriage, the insulating tool carrier is mounted on the first carriage, the tool bearing platform is mounted on the insulating tool carrier, and the delay module is connected with the tool bearing platform through a weak electric signal line.

In a second aspect, the present utility model also provides a numerically controlled lathe, which includes a break detection device for a numerically controlled lathe as provided in the first aspect.

The utility model provides a numerical control lathe can detect the cutter and take place to break in the course of working to avoid appearing effectively because the condition that the cutter broken and lead to producing the defective products in the course of working can't detect, and then reduce numerical control lathe's processing cost effectively.

Therefore, the cutter breakage detection device for the numerical control lathe and the numerical control lathe provided by the utility model can detect the cutter breakage in the machining process, so that the condition that defective products are generated due to the fact that the cutter breakage cannot be detected in the machining process is effectively avoided, and the machining cost of the numerical control lathe is effectively reduced.

Drawings

Fig. 1 is a flow chart of a conventional numerical control lathe for machining a part to be machined.

Fig. 2 is a schematic diagram of a simple structure of a break detection device for a numerically controlled lathe according to a first embodiment of the present application.

Fig. 3 is a schematic diagram of a simple structure of a break detection device for a numerically controlled lathe according to a second embodiment of the present application.

Fig. 4 is a detailed schematic diagram of a knife break detection device for a numerically controlled lathe provided in an embodiment of the present application, not including a first protective cover and a second protective cover, and where the knife rest assembly includes a conductive knife bracket.

Fig. 5 is a schematic front view of a cutter breakage detection device for a numerically controlled lathe, including a first protective cover and a second protective cover, and an insulating member including an insulating cutter bracket according to an embodiment of the present application.

Fig. 6 is an enlarged schematic view of the structure at a in fig. 5.

Fig. 7 is a detailed schematic diagram of a knife break detection device for a numerically controlled lathe provided herein that includes a first protective cover and a second protective cover and the knife rest assembly includes a conductive knife bracket.

Fig. 8 is an enlarged schematic view of the structure at B in fig. 7.

Fig. 9 is a flow chart of the numerical control lathe of the present application for machining a part to be machined.

Description of the reference numerals: 1. a lathe body; 2. a main shaft; 3. a carriage assembly; 31. x-axis linear carriage; 32. a Z-axis linear carriage; 33. a conductive knife bracket; 4. an insulating member; 41. an insulating knife bracket; 42. an insulating spacer; 43. an insulating screw; 5. a controller; 6. a delay module; 7. weak current signal line; 8. a part to be processed; 9. a cutter; 10. a tool carrying table; 11. a first protective cover; 12. and a second protective cover.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model.

The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed.

In a first aspect, the present application provides a broken cutter detection device for a numerically controlled lathe for detect whether cutter 9 of the numerically controlled lathe breaks, the numerically controlled lathe includes lathe body 1, main shaft 2 and knife rest subassembly 3 are all installed on lathe body 1, main shaft 2 is used for the centre gripping to wait to process part 8 and drive to wait to process part 8 rotation, knife rest subassembly 3 is used for installing cutter 9 and drives cutter 9 and remove, lathe body 1, main shaft 2, knife rest subassembly 3, wait to process the material of part 8 and cutter 9 and be electrically conductive material, a broken cutter detection device for a numerically controlled lathe includes:

an insulator 4 disposed between the lathe body 1 and the spindle 2 or between the lathe body 1 and the tool rest assembly 3;

the controller 5 is electrically connected with the spindle 2 and the tool rest assembly 3;

and the time delay module 6 is electrically connected with the controller 5, and the time delay module 6 is connected with the spindle 2 through a weak current signal wire 7 if the insulating piece 4 is arranged between the lathe body 1 and the tool rest assembly 3, and the time delay module 6 is connected with the tool rest assembly 3 through the weak current signal wire 7 if the insulating piece 4 is arranged between the lathe body 1 and the spindle 2.

The numerically controlled lathe of this embodiment includes a lathe body 1, a spindle 2, and a tool rest assembly 3, where the spindle 2 and the tool rest assembly 3 of this embodiment are disposed on the lathe body 1, that is, the lathe body 1 supports the spindle 2 and the tool rest assembly 3, and the lathe body 1 of this embodiment is made of an existing conductive material (such as an alloy or a composite metal), that is, the numerically controlled lathe of this embodiment is capable of conducting electricity, and it should be understood that since the lathe body 1 is placed on the ground, the lathe body 1 of this embodiment is connected to the ground, that is, the lathe body 1 of this embodiment corresponds to a ground terminal. The main shaft 2 of this embodiment is the current subassembly, and this main shaft 2 can centre gripping wait to process part 8 and drive wait to process part 8 rotation, and this wait to process part 8 is the part that the numerical control lathe needs to process, and the material of main shaft 2 and wait to process part 8 of this embodiment is current electrically conductive material. The tool rest assembly 3 of this embodiment is an existing assembly, at least one tool 9 is mounted on the tool rest assembly 3, the tool rest assembly 3 can drive the tool 9 to move along the X-axis direction or the Z-axis direction, and the materials of the tool rest assembly 3 and the tool 9 of this embodiment are both conductive materials. The insulator 4 of this embodiment is a device made of existing insulating materials (such as mica, mineral materials, and phenolic resins), and the insulator 4 of this embodiment is disposed between the lathe body 1 and the spindle 2 or between the tool rest assembly 3 and the lathe body 1, and since the insulator 4 is not electrically conductive, this embodiment corresponds to the spindle 2 or the tool rest assembly 3 not being grounded when the tool 9 is not in contact with the part 8 to be machined. The controller 5 of this embodiment is electrically connected to the spindle 2 and the tool rest assembly 3, and the controller 5 can control the spindle 2 to drive the part 8 to be machined to rotate and control the tool rest assembly 3 to drive the tool 9 to move so as to machine the part 8 to be machined. The delay module 6 of this embodiment is an existing module, the delay module 6 of this embodiment may include a capacitor, a diode, a triode, an inductor, or other devices capable of charging and discharging, the delay module 6 of this embodiment is preferably an input circuit of a PLC for controlling an electromagnetic valve provided in patent document CN104100761B, the delay module 6 of this embodiment generates a ground signal and delays the ground signal when grounded (specifically, the delay module 6 of this embodiment delays the ground signal by 0.1 s), if the insulator 4 is disposed between the lathe body 1 and the spindle 2, the delay module 6 is connected to the spindle 2 through a weak signal line 7, if the insulator 4 is disposed between the lathe body 1 and the tool rest assembly 3, the delay module 6 is connected to the tool rest assembly 3 through the weak signal line 7, that is, the delay module 6 of this embodiment is equivalent to being electrically connected to the devices located above the insulator 4.

The working flow of the numerically controlled lathe for machining the part 8 to be machined in this embodiment is shown in fig. 9, specifically, taking the case that three tools 9 are needed in the machining process, the working flow of the numerically controlled lathe is as follows: 1. machining the part 8 to be machined by using a first cutter 9; 2. detecting a broken cutter; 3. machining the part 8 to be machined by using a second cutter 9; 4. detecting a broken cutter; 5. the part 8 to be machined is machined with a third tool 9. Wherein, the control logic of broken knife detection is: if the controller 5 acquires the grounding signal, the cutter 9 is indicated not to break; if the controller 5 does not acquire the grounding signal, it indicates that the cutter 9 is broken. It should be understood that if the breakage of the tool 9 is detected, the nc lathe is controlled to stop the machining of the part 8 to be machined, the tool 9 is replaced after the nc lathe is stopped, and the part 8 to be machined is reworked with a new tool 9, and since the length of the tool 9 is reduced after the breakage of the tool 9, that is, the broken tool 9 cannot contact the part 8 to be machined, even if the machining process is continued after the breakage of the tool 9, the occurrence of defective products due to the contact of the broken tool 9 with the part 8 to be machined does not occur. It should also be understood that, since the machining of the part 8 to be machined is completed after the part 8 to be machined is machined by the third tool 9, if the part 8 to be machined is a defective product, it means that the third tool 9 is broken, and therefore, after the part 8 to be machined is machined by the last tool 9, the embodiment may not perform the tool breakage detection on the last tool 9, and the embodiment may also perform the tool breakage detection on the last tool 9.

The working principle of the embodiment is as follows: the utility model provides a break detection device for numerical control lathe includes insulating part 4 and time delay module 6, insulating part 4 sets up between lathe body 1 and main shaft 2 or sets up between lathe body 1 and knife rest subassembly 3, if insulating part 4 sets up between lathe body 1 and main shaft 2, time delay module 6 is connected with main shaft 2 through weak current signal line 7, if insulating part 4 sets up between lathe body 1 and knife rest subassembly 3, time delay module 6 is connected with knife rest subassembly 3 through weak current signal line 7, with insulating part 4 setting up between main shaft 2 and lathe body 1, time delay module 6 is connected with main shaft 2 through weak current signal line 7 for example, because insulating part 4 sets up between main shaft 2 and lathe body 1, insulating part 4 is nonconductive, i.e. main shaft 2 is not grounded when cutter 9 is not contacted with the part 8 that is to be processed, the insulating piece 4 is not arranged between the tool rest assembly 3 and the lathe body 1, namely, the tool rest assembly 3 and the tool 9 are grounded, so that if the tool 9 is not broken, the tool 9 is contacted with the part 8 to be machined in the machining process of the part 8 to be machined, the spindle 2 and the delay module 6 are grounded and generate grounding signals, the delay module 6 is grounded to a time node when the machining of the tool 9 is finished, if the tool 9 is broken in the machining process of the part 8 to be machined, the delay module 6 cannot be grounded to the time node when the machining of the tool 9 is finished, and because the delay module 6 can delay the grounding signals, if the tool 9 is not broken, the controller 5 can acquire the grounding signals delayed by the delay module 6 after the machining of the tool 9 is finished, if the tool 9 is broken, the controller 5 cannot acquire the grounding signals after the machining of the tool 9 is finished, therefore, whether the cutter 9 is broken or not can be judged through the mode of whether the grounding signal is obtained after the cutter 9 is machined, namely, the cutter 9 is broken in the machining process can be detected by the cutter breaking detection device for the numerical control lathe, so that the situation that defective products are generated due to the fact that the cutter 9 cannot be detected to be broken in the machining process is effectively avoided, and the machining cost of the numerical control lathe is effectively reduced. Further, since this embodiment controls the numerically controlled lathe to stop when the breakage of the tool 9 is detected, this embodiment can avoid the occurrence of breakage of the tool 9 used in the subsequent process due to continued processing even if the breakage of the tool 9 occurs.

In some embodiments, the carriage assembly 3 includes an X-axis linear carriage 31, a Z-axis linear carriage 32, and a conductive blade carrier 33, the X-axis linear carriage 31 including a first carriage, the Z-axis linear carriage 32 including a second carriage, the Z-axis linear carriage 32 being mounted on the lathe body 1, the X-axis linear carriage 31 being mounted on the second carriage, the conductive blade carrier 33 being mounted on the first carriage, the conductive blade carrier 33 having at least one blade carrier 10 mounted thereon. The X-axis linear carriage 31 and the Z-axis linear carriage 32 of this embodiment are both conventional devices, the operation principle of which is not discussed in detail herein, the X-axis linear carriage 31 includes a first carriage, the Z-axis linear carriage 32 includes a second carriage, the Z-axis linear carriage 32 of this embodiment can drive the X-axis linear carriage 31 to move in the Z-axis direction to move the tool 9 in the Z-axis direction because the X-axis linear carriage 31 is mounted on the second carriage, and the X-axis linear carriage 31 of this embodiment can drive the conductive tool carriage 33 to move in the X-axis direction to move the tool 9 in the X-axis direction because the conductive tool carriage 33 is mounted on the first carriage. The tool holders 10 of this embodiment are used to mount tools 9 that are required for use during machining, and it should be understood that each tool holder 10 can mount only one tool 9, so that if a plurality of tools 9 are required for use during machining of a numerically controlled lathe, a plurality of tool holders 10 are mounted on the conductive tool carrier 33.

In some embodiments, the insulator 4 is disposed between the Z-axis linear carriage 32 and the lathe body 1, and the delay module 6 is connected to the Z-axis linear carriage 32, the X-axis linear carriage 31, the conductive blade carrier 33, or the blade carrier 10 through the weak electric signal line 7. The insulator 4 of this embodiment is disposed between the Z-axis linear carriage 32 and the lathe body 1, that is, this embodiment corresponds to the Z-axis linear carriage 32, the X-axis linear carriage 31, the conductive blade carrier 33, and the tool carrier 10 being not grounded when the tool 9 is not in contact with the part 8 to be machined, and since the delay module 6 is connected to the Z-axis linear carriage 32, the X-axis linear carriage 31, the conductive blade carrier 33, or the tool carrier 10 through the weak signal line 7, the Z-axis linear carriage 32, the X-axis linear carriage 31, the conductive blade carrier 33, and the delay module 6 are grounded when the tool 9 is in contact with the part 8 to be machined. It should be understood that, since the numerically controlled lathe needs to use different tools 9 when machining different parts 8 to be machined (i.e. different tool holders 10 need to be mounted on the conductive tool carrier 33), if the delay module 6 is connected to the tool holder 10 through the weak current signal line 7, the weak current signal line 7 is connected to the tool holder 10 before each machining, so the delay module 6 of this embodiment is preferably connected to the Z-axis linear carriage 32, the X-axis linear carriage 31 or the conductive tool carrier 33 through the weak current signal line 7 in order to simplify the machining process.

In some embodiments, the insulator 4 is disposed between the second carriage and the X-axis linear carriage 31, and the delay module 6 is connected to the X-axis linear carriage 31, the conductive blade carrier 33, or the blade carrier 10 through the weak electric signal line 7. The insulator 4 of this embodiment is disposed between the second carriage and the X-axis linear carriage 31, that is, this embodiment corresponds to making the X-axis linear carriage 31, the conductive blade carrier 33, and the blade carrier 10 ungrounded when the blade 9 is not in contact with the part 8 to be processed, and since the delay module 6 is connected to the X-axis linear carriage 31, the conductive blade carrier 33, or the blade carrier 10 through the weak signal line 7, the X-axis linear carriage 31, the conductive blade carrier 33, the blade carrier 10, and the delay module 6 are grounded when the blade 9 is in contact with the part 8 to be processed. It should be understood that, since the numerically controlled lathe needs to use different tools 9 when machining different parts 8 to be machined (i.e. different tool holders 10 need to be mounted on the conductive tool carrier 33), if the delay module 6 is connected to the tool holder 10 through the weak current signal line 7, the weak current signal line 7 is connected to the tool holder 10 before each machining, so the delay module 6 of this embodiment is preferably connected to the X-axis linear carriage 31 or the conductive tool carrier 33 through the weak current signal line 7 in order to simplify the machining process.

In some embodiments, the insulator 4 is disposed between the conductive blade carrier 33 and the first carriage, and the delay module 6 is connected to the conductive blade carrier 33 or the blade carrier 10 by the weak electric signal line 7. The insulator 4 of this embodiment is disposed between the first carriage and the conductive blade carrier 33, i.e., this embodiment corresponds to making the conductive blade carrier 33 and the blade carrier 10 ungrounded when the blade 9 is not in contact with the part 8 to be machined, and since the delay module 6 is connected to the conductive blade carrier 33 or the blade carrier 10 through the weak signal line 7, the conductive blade carrier 33, the blade carrier 10, and the delay module 6 are grounded if the blade 9 is in contact with the part 8 to be machined. It should be understood that, since the numerically controlled lathe needs to use different tools 9 when machining different parts 8 to be machined (i.e. different tool holders 10 need to be mounted on the conductive tool carrier 33), if the delay module 6 is connected to the tool holders 10 through the weak current signal line 7, the weak current signal line 7 is connected to the tool holders 10 before each machining, so the delay module 6 of this embodiment is preferably connected to the conductive tool carrier 33 through the weak current signal line 7 in order to simplify the machining process.

In some embodiments, the insulator 4 is disposed between the conductive blade carrier 33 and the blade carrier 10, and the delay module 6 is connected to the blade carrier 10 by the weak electric signal line 7. Specifically, the insulating member 4 of this embodiment includes an insulating spacer 42 and an insulating screw 43 (refer to fig. 8), the insulating spacer 42 is provided between the conductive blade bracket 33 and the first carriage, the conductive blade bracket 33 is locked and fixed to the first carriage by the insulating screw 43 of this embodiment, and the insulating spacer 42 of this embodiment is preferably a mica insulating spacer. The insulator 4 of this embodiment is disposed between the conductive tool carrier 33 and the tool carrier 10, i.e. this embodiment corresponds to the tool carrier 10 being ungrounded when the tool 9 is not in contact with the part 8 to be machined, since the delay module 6 is connected to the tool carrier 10 via the weak signal line 7, both the tool carrier 10 and the delay module 6 are grounded if the tool 9 is in contact with the part 8 to be machined. It should be understood that, since the delay module 6 of this embodiment is connected to the tool carrying platforms 10 through the weak electric signal lines 7, and the delay module 6 can be connected to only one tool carrying platform 10 through one weak electric signal line 7, if the number of tool carrying platforms 10 is plural, the number of weak electric signal lines 7 is plural.

In some embodiments, the numerically controlled lathe further includes a first protective cover 11, the first protective cover 11 being mounted on the X-axis linear carriage 31. The numerically controlled lathe of this embodiment further includes the first guard cover 11, and this first guard cover 11 is installed on the straight carriage 31 of X axle, and this first guard cover 11 can prevent that the metal piece that produces in the course of working from falling on the straight carriage 31 of X axle, and consequently this embodiment can avoid effectively appearing because the metal piece that produces in the course of working falls on the straight carriage 31 of X axle and lead to the straight carriage 31 of X axle to damage or the condition of blocking to prolong the life of straight carriage 31 of X axle effectively.

In some embodiments, the numerically controlled lathe further includes a second protective cover 12, the second protective cover 12 being mounted on the Z-axis linear carriage 32. The numerically controlled lathe of the embodiment further comprises a second protection cover 12, the second protection cover 12 is installed on the Z-axis linear carriage 32, and the second protection cover 12 can prevent metal scraps generated in the machining process from falling onto the Z-axis linear carriage 32, so that the situation that the Z-axis linear carriage 32 is damaged or blocked due to the fact that the metal scraps generated in the machining process fall onto the Z-axis linear carriage 32 can be effectively avoided, and the service life of the Z-axis linear carriage 32 is effectively prolonged.

In some embodiments, the tool rest assembly 3 comprises an X-axis linear carriage 31, a Z-axis linear carriage 32, and at least one tool carrier 10, the insulator 4 comprises an insulated tool carrier 41, the X-axis linear carriage 31 comprises a first carriage, the Z-axis linear carriage 32 comprises a second carriage, the Z-axis linear carriage 32 is mounted on the lathe body 1, the X-axis linear carriage 31 is mounted on the second carriage, the insulated tool carrier 41 is mounted on the first carriage, the tool carrier 10 is mounted on the insulated tool carrier 41, and the delay module 6 is connected to the tool carrier 10 via the weak electrical signal line 7. This embodiment corresponds to the arrangement of the insulating member 4 between the insulating blade carrier 41 and the blade carrier 10, i.e. this embodiment corresponds to the fact that the blade carrier 10 is not grounded when the blade 9 is not in contact with the part 8 to be machined, since the delay module 6 is connected to the blade carrier 10 via the weak signal line 7, both the blade carrier 10 and the delay module 6 are grounded if the blade 9 is in contact with the part 8 to be machined. It should be understood that, since the delay module 6 of this embodiment is connected to the tool carrying platforms 10 through the weak electric signal lines 7, and the delay module 6 can be connected to only one tool carrying platform 10 through one weak electric signal line 7, if the number of tool carrying platforms 10 is plural, the number of weak electric signal lines 7 is plural.

From the above, the cutter breakage detection device for the numerical control lathe can detect that the cutter 9 breaks in the machining process, so that the situation that defective products are generated due to the fact that the cutter 9 cannot be detected to break in the machining process is effectively avoided, and the machining cost of the numerical control lathe is effectively reduced.

In a second aspect, the present utility model also provides a numerically controlled lathe, which includes a break detection device for a numerically controlled lathe as provided in the first aspect.

An embodiment of the present application provides a numerically controlled lathe, which includes the break detection device for a numerically controlled lathe provided in the first aspect. The working principle of the numerically controlled lathe provided in the embodiment of the present application is the same as that of the cutter breakage detection device for a numerically controlled lathe provided in the first aspect, and will not be discussed in detail here.

From the above, the numerical control lathe provided by the application can detect that the cutter 9 breaks in the machining process, so that the situation that defective products are generated due to the fact that the cutter 9 cannot be detected to break in the machining process is effectively avoided, and the machining cost of the numerical control lathe is effectively reduced.

Therefore, the cutter breakage detection device for the numerical control lathe and the numerical control lathe provided by the utility model can detect the breakage of the cutter 9 in the processing process, so that the condition that defective products are generated due to the fact that the cutter 9 cannot be detected to be broken in the processing process is effectively avoided, and the processing cost of the numerical control lathe is effectively reduced.

In the description of the present specification, reference to the terms "one embodiment," "certain embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

What has been described above is merely some embodiments of the present utility model. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the utility model.

Claims (10)

1. The utility model provides a broken sword detection device for numerical control lathe for detect whether the cutter of numerical control lathe takes place to fracture, numerical control lathe includes lathe body, main shaft and knife rest subassembly, the main shaft with knife rest subassembly is all installed on the lathe body, the main shaft is used for the centre gripping to wait to process the part and drive wait to process the part rotation, knife rest subassembly is used for installing the cutter drives the cutter removes, lathe body the main shaft, knife rest subassembly wait to process the part with the material of cutter is electrically conductive material, its characterized in that, a broken sword detection device for numerical control lathe includes:

an insulator disposed between the lathe body and the spindle or between the lathe body and the carriage assembly;

the controller is electrically connected with the main shaft and the tool rest assembly;

the time delay module is electrically connected with the controller, if the insulating piece is arranged between the lathe body and the main shaft, the time delay module is connected with the main shaft through a weak current signal wire, and if the insulating piece is arranged between the lathe body and the tool rest assembly, the time delay module is connected with the tool rest assembly through a weak current signal wire.

2. The apparatus of claim 1, wherein the carriage assembly comprises an X-axis linear carriage, a Z-axis linear carriage, and a conductive blade carrier, the X-axis linear carriage comprising a first carriage, the Z-axis linear carriage comprising a second carriage, the Z-axis linear carriage being mounted on the lathe body, the X-axis linear carriage being mounted on the second carriage, the conductive blade carrier being mounted on the first carriage, the conductive blade carrier having at least one blade carrier mounted thereon.

3. The breaking detection device for a numerically controlled lathe according to claim 2, wherein the insulating member is disposed between the Z-axis linear carriage and the lathe body, and the delay module is connected to the Z-axis linear carriage, the X-axis linear carriage, the conductive tool carrier, or the tool carrying table through the weak electric signal line.

4. The breaking detection device for a numerically controlled lathe according to claim 2, wherein the insulating member is disposed between the second carriage and the X-axis linear carriage, and the delay module is connected to the X-axis linear carriage, the conductive tool carrier, or the tool carrying table through the weak electric signal line.

5. The breaking detection device for a numerically controlled lathe according to claim 2, wherein the insulating member is disposed between the conductive tool carrier and the first carriage, and the delay module is connected to the conductive tool carrier or the tool carrying table through the weak current signal line.

6. The breaking detection device for a numerically controlled lathe according to claim 2, wherein the insulator is provided between the conductive tool carrier and the tool carrier, and the delay module is connected to the tool carrier through the weak current signal line.

7. The breaking detection device for a numerically controlled lathe according to claim 2, further comprising a first protection cover mounted on the X-axis linear carriage.

8. The break detection device for a numerically controlled lathe according to claim 2, further comprising a second protective cover mounted on the Z-axis linear carriage.

9. The tool breakage detection device for a numerically controlled lathe according to claim 1, wherein the tool rest assembly comprises an X-axis linear carriage, a Z-axis linear carriage and at least one tool carrier, the insulator comprises an insulated tool carrier, the X-axis linear carriage comprises a first carriage, the Z-axis linear carriage comprises a second carriage, the Z-axis linear carriage is mounted on the lathe body, the X-axis linear carriage is mounted on the second carriage, the insulated tool carrier is mounted on the first carriage, the tool carrier is mounted on the insulated tool carrier, and the delay module is connected with the tool carrier through the weak electric signal line.

10. A numerically controlled lathe comprising a break detection apparatus for a numerically controlled lathe according to any one of claims 1 to 9.