Tool breakage detection tool for multi-tool pin hole machining

Abstract

The utility model relates to the technical field of workpiece machining, in particular to a tool breakage detection tool for machining pin holes by multiple tools, which comprises a mounting seat and is characterized in that a support plate is slidably mounted on the mounting seat, a switch support is mounted on the support plate, a magnetic inductive switch is mounted on the switch support, and a magnetic sensor is mounted on the magnetic inductive switch. A shell used for providing protection is installed on the switch support in a sliding mode, a spring used for buffering is installed between the magnetic induction switch and the shell, and a first bolt used for triggering the magnetic induction switch is installed on the shell in a threaded mode. The first bolt pushes the shell to slide after being propped by the cutter, so that the first bolt is close to the magnetic induction switch, the magnetic induction switch is triggered when the first bolt is close, the magnetic induction switch sends data to a numerical control system, the cutter is judged to be normal, the magnetic induction switch cannot be triggered, and the cutter is judged to be damaged; and the effect of greatly reducing the machining reject ratio and the tool cost is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to workpiece processing technical field, especially a kind of tool breakage detection frock for multiple tool machining pin hole. BACKGROUND

[0002] In the mechanical processing industry, especially the pin hole processing of automobile transmission differential shell and other parts, multiple tools are often required to work in sequence to meet the high-precision and high-quality processing requirements. In practical applications, this type of processing has specific requirements for tool breakage detection frock.

[0003] 1. Tool positioning and running technology: when machining pin holes, multiple tools need to be processed in sequence according to the specified order, and each tool needs to be accurately positioned to the processing position.

[0004] 2. Breakage detection technology: the current commonly used tool breakage detection methods include direct observation, sound monitoring and vibration analysis, and direct observation relies on operators to observe the appearance of the tool during processing.

[0005] 3. Processing continuity guarantee technology: to ensure processing continuity, measures need to be taken in time when tool breakage is detected.

[0006] In the machining of automobile transmission differential shell deep hole, the tools used are all hard alloy tools, which are brittle and easy to break. After the breakage of the current tool during processing, the following tools will break due to unqualified holes, greatly increasing the processing failure rate and tool cost. UTILITY MODEL CONTENTS

[0007] To overcome the shortcomings of the prior art, the utility model provides a tool breakage detection frock for multiple tool machining pin hole, which solves the technical problem that in the machining of automobile transmission differential shell deep hole, the tools used are all hard alloy tools, which are brittle and easy to break. After the breakage of the current tool during processing, the following tools will break due to unqualified holes, greatly increasing the processing failure rate and tool cost.

[0008] To achieve the above purpose, the utility model is implemented by the following technical solutions:

[0009] A tool breakage detection frock for multiple tool machining pin hole, comprising a mounting seat, a support plate slidably mounted on the mounting seat, a switch support mounted on the support plate, a magnetic induction switch mounted on the switch support, an outer shell for providing protection slidably mounted on the switch support, a spring for buffering mounted between the magnetic induction switch and the outer shell, and a first bolt for triggering the magnetic induction switch threadedly mounted on the outer shell.

[0010] Preferably, a limiting groove for limiting is formed in the switch support.

[0011] Preferably, the second bolt is symmetrically screwed on the shell for limiting.

[0012] Preferably, the lower end of the second bolt is located inside the limiting groove.

[0013] Preferably, the third bolt is mounted on the switch support for connecting with the support plate.

[0014] Preferably, the threaded rod is rotatably mounted on the support plate.

[0015] Preferably, the threaded rod is threadedly connected with the mounting seat.

[0016] Preferably, the impeller is fixedly mounted on the side end of the threaded rod.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] I. When using, after the cutter is machined, it is driven by the automatic equipment to approach the first bolt, the first bolt is pushed by the cutter to slide the shell, the shell slides to the bottom end of the switch support against the elastic force of the spring, the first bolt approaches the magnetic induction switch, the magnetic induction switch sends a signal to the numerical control system when the first bolt approaches, and the cutter is determined to be normal, and the machining is continued.

[0019] II. When installing, the impeller is rotated to drive the threaded rod to rotate, the threaded rod is threadedly connected with the mounting seat, the support plate is slid by rotating the impeller, the detection trigger position of the cutter is changed, and the effect that different installation requirements can be met is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0020] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, and the utility model can be implemented according to the content of the specification, the following preferred embodiments of the utility model are described in detail in the following.

[0021] Figure 1 It is the support plate structure diagram of the utility model;

[0022] Figure 2 It is the mounting seat structure diagram of the utility model;

[0023] Figure 3 It is the shell cross section structure diagram of the utility model;

[0024] Figure 4 The explosion structure diagram of the utility model.

[0025] Legend: 1, mounting seat; 2, support plate; 3, switch support; 4, magnetic induction switch; 5, shell; 6, spring; 7, first bolt; 8, second bolt; 9, third bolt; 11, threaded rod; 12, impeller; 13, limit groove. DETAILED DESCRIPTION

[0026] The embodiment of the application provides a tool breakage detection tool for multi-tool machining pin holes, effectively solves the technical problem that in the deep hole machining of the differential housing of the automobile transmission, the tool used is a hard alloy tool, which is brittle and easy to break, after the breakage of the current tool in the machining process, the following tools will break due to unqualified holes, greatly increasing the processing failure rate and tool cost, when in use, after tool machining, the tool will be driven by the automatic equipment to approach the first bolt, the first bolt will push the shell to slide after being pushed by the tool, the shell will slide to the bottom end of the switch support against the elastic force of the spring, the first bolt approaches the magnetic induction switch, when the first bolt approaches, the magnetic induction switch will be triggered, the magnetic induction switch will send a signal to the numerical control system, and it is determined that the tool is normal, and the machining is continued, if the tool is broken, the first bolt cannot be contacted, the magnetic induction switch cannot be triggered, and it is determined that the tool is damaged, and the machining is stopped, the tool is replaced by the operator, and then the machining is continued, the tool condition can be detected, subsequent tool breakage is avoided, the processing failure rate and tool cost are greatly reduced, when installing, the threaded rod is rotated by rotating the impeller, since the threaded rod is in threaded connection with the mounting seat, therefore, the rotation of the impeller can make the support plate slide, the tool detection trigger position is changed, and the effect that different installation requirements can be met is achieved.

[0027] EMBODIMENT

[0028] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , the technical scheme in the embodiment of the application effectively solves the technical problem that in the deep hole machining of the differential housing of the automobile transmission, the tool used is a hard alloy tool, which is brittle and easy to break, after the breakage of the current tool in the machining process, the following tools will break due to unqualified holes, greatly increasing the processing failure rate and tool cost, and the overall idea is as follows:

[0029] To address the problems existing in the prior art, this utility model provides a tooling fixture for detecting tool breakage in multi-tool pin hole machining, including a mounting base 1, a support plate 2 slidably mounted on the mounting base 1, a switch support 3 mounted on the support plate 2, a magnetic induction switch 4 mounted on the switch support 3, and a protective housing 5 slidably mounted on the switch support 3.

[0030] A spring 6 for buffering is installed between the magnetic induction switch 4 and the housing 5. A first bolt 7 for triggering the magnetic induction switch 4 is threaded on the housing 5. A limiting groove 13 for limiting is opened on the switch support 3. A second bolt 8 for limiting is symmetrically threaded on the housing 5.

[0031] The lower end of the second bolt 8 is located inside the limiting groove 13. A third bolt 9 for connecting with the support plate 2 is installed on the switch support 3. A threaded rod 11 is rotatably installed on the support plate 2. The threaded rod 11 is threadedly connected to the mounting seat 1. A pulsator 12 is fixedly installed on the side end of the threaded rod 11.

[0032] Mounting base 1: As the basic component of the tooling, it is used to fix the tooling in the required position and provide installation support for the entire tooling. Other components, such as support plate 2, are installed and operate based on it.

[0033] Support plate 2: It is slidably mounted on the mounting base 1. It can drive the threaded rod 11 to rotate by rotating the impeller 12. It can slide by using the threaded connection between the threaded rod 11 and the mounting base 1, thereby changing the trigger position of the tool detection to adapt to different installation requirements. At the same time, it serves as the mounting carrier of the switch support 3, connecting the switch support 3 and being connected to the third bolt 9 on the switch support 3.

[0034] Switch support 3: Installed on support plate 2, it provides installation position for components such as magnetic induction switch 4 and housing 5. It has a limiting groove 13 for limiting the movement, which cooperates with the second bolt 8 on housing 5 to limit the sliding of housing 5. At the same time, it is connected to support plate 2 by third bolt 9 to ensure its own installation stability on support plate 2. It plays a connecting and supporting role in the entire tooling structure.

[0035] Magnetic induction switch 4: Installed on switch support 3 and connected to the CNC system, it sends a data signal to the CNC system after receiving the trigger signal from the first bolt 7, thereby determining whether the tool is normal. It is a key component for judging the tool status and controlling the machining process.

[0036] Housing 5: slidingly mounted on the switch support 3, plays a protective role, when the first bolt 7 is pushed by the cutter, it will slide to the bottom of the switch support 3 against the elastic force of the spring 6, drive the first bolt 7 close to the magnetic induction switch 4 to trigger detection, the second bolt 8 is symmetrically threaded, the lower end of the second bolt 8 is located inside the limiting groove 13, realizing the sliding limit of itself;

[0037] Spring 6: installed between the magnetic induction switch 4 and the housing 5, provides a buffer effect, when the housing 5 is subjected to external force (such as the first bolt 7 is indirectly pushed by the cutter), the elastic force of the spring 6 can buffer the sliding of the housing 5, make the movement of the housing 5 more stable, avoid impact on the magnetic induction switch 4, ensure the stability of the detection process, at the same time, when the cutter leaves, it will push the first bolt 7 back to its original position through the elastic force;

[0038] First bolt 7: threaded on the housing 5, used to trigger the magnetic induction switch 4, when the cutter is close to it after finishing processing, it is pushed by the cutter to slide the housing 5, and then close to the magnetic induction switch 4, if the cutter is normal, it will trigger the magnetic induction switch 4 to send a normal cutter signal to the numerical control system, if the cutter is broken, it cannot be triggered, thus realizing the detection and triggering of the cutter state;

[0039] Second bolt 8: symmetrically threaded on the housing 5, the lower end is located inside the limiting groove 13, cooperates with the limiting groove 13 to limit the sliding of the housing 5, ensures the sliding of the housing 5 within the specified range, guarantees the normal operation of the detection tool;

[0040] Third bolt 9: installed on the switch support 3, used to connect with the support plate 2, strengthens the connection stability between the switch support 3 and the support plate 2, ensures the stability of the whole tool structure, makes the parts work together without displacement or looseness due to loose connection;

[0041] Threaded rod 11: rotatingly installed on the support plate 2, threaded with the mounting seat 1, rotating the wave wheel 12 can drive it to rotate, then through the cooperation with the threads of the mounting seat 1, makes the support plate 2 slide, changes the cutter detection trigger position, meets different installation requirements;

[0042] Wave wheel 12: fixedly installed on the side end of the threaded rod 11, through rotating it, the threaded rod 11 can be rotated, thus realizing the adjustment of the position of the support plate 2, facilitates to change the cutter detection trigger position according to different installation requirements;

[0043] Limiting groove 13: opened on the switch support 3, cooperates with the second bolt 8 on the housing 5, limits the sliding of the housing 5, ensures the position accuracy and stability of the sliding of the housing 5 on the switch support 3, makes the action of the detection tool more reliable.

[0044] Working principle:

[0045] First, in the installation, the mounting seat 1 is fixedly installed in the position required to be installed, and the magnetic induction switch 4 is connected with the numerical control system, in use, after the tool machining is completed, the first bolt 7 is pushed to slide the shell 5, the shell 5 will overcome the elastic force of the spring 6 to slide to the bottom end of the switch support 3, so that the first bolt 7 approaches the magnetic induction switch 4, when the first bolt 7 approaches, the magnetic induction switch 4 will be triggered, the magnetic induction switch 4 will send a signal to the numerical control system, and the tool is determined to be normal, and the machining is continued, if the tool is broken, the magnetic induction switch 4 cannot be triggered, and the tool is determined to be damaged, and the machining is stopped, the tool is replaced by the operator, and then the machining is continued, the tool condition can be detected, the subsequent tool breakage is avoided, the machining defective rate and tool cost are greatly reduced.

[0046] Second, in the installation, rotating the wave wheel 12 can drive the threaded rod 11 to rotate, since the threaded rod 11 is threadedly connected with the mounting seat 1, rotating the wave wheel 12 can make the support plate 2 slide, so that the tool detection triggering position is changed, and the effect that different installation requirements can be met is achieved.

[0047] Finally, it should be noted that: obviously, the above embodiments are only examples for clearly illustrating the utility model, and are not limited to the implementation mode. For ordinary skilled persons in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and impossible to enumerate all the implementation modes. The obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. A multi-tool tool breakage detection tool for machining a pin hole, comprising a mounting seat (1), characterized in that, The mounting base (1) is slidably installed with a support plate (2), the support plate (2) is installed with a switch support (3), the switch support (3) is installed with a magnetic induction switch (4), the switch support (3) is slidably installed with a shell (5) for providing protection, the magnetic induction switch (4) and the shell (5) are installed with a spring (6) for buffering, the shell (5) is threadedly installed with a first bolt (7) for triggering the magnetic induction switch (4).

2. A tool break detection fixture for use in multi-tool machining of a pin hole as set forth in claim 1, wherein, The switch support (3) is provided with a limiting groove (13) for limiting.

3. A tool break detection fixture for use in machining a pin hole with a multi-tool cutter as set forth in claim 1, wherein, The shell (5) is symmetrically threadedly installed with a second bolt (8) for limiting.

4. The tool breakage detection tooling fixture for multi-tool machining of a pin hole according to claim 3, wherein The lower end of the second bolt (8) is located in the limiting groove (13).

5. A tool break detection fixture for use in machining a pin hole with a multi-tool cutter as set forth in claim 1, wherein, The switch support (3) is installed with a third bolt (9) for connecting with the support plate (2).

6. A tool break detection fixture for use in machining a pin hole with a multi-tool cutter as defined in claim 1, wherein, The support plate (2) is rotatably installed with a threaded rod (11).

7. A tool break detection fixture for use with a multi-tool pin boring tool as defined in claim 6, wherein: The threaded rod (11) is threadedly connected with the mounting base (1).

8. A tool break detection fixture for use with a multi-tool pin boring tool as defined in claim 6, wherein: The side end of the threaded rod (11) is fixedly installed with a impeller (12).

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