Numerical control machine tool with reverse tool setting function

Abstract

The numerical control machine tool with the reverse tool setting function comprises a machine tool body, a main shaft, a cutter head, a first installation track and a second installation track are arranged on the machine tool body, the first installation track and the second installation track are parallel, the cutter head is arranged on the first installation track through a multi-shaft moving assembly, a tool is installed on the cutter head, and the first installation track and the second installation track are parallel. A tailstock is arranged on the second mounting rail, a sliding mounting platform is further arranged on the second mounting rail between the tailstock and the main shaft, a mounting vertical plate is arranged on the sliding mounting platform, a tool setting gauge is mounted on the mounting vertical plate, and an arc-shaped avoiding protection plate is arranged at the top of the mounting vertical plate; and a groove protection block is arranged on the arc-shaped avoiding protection plate. The tool setting gauge is not limited in installation, wide in model selection range and convenient and reliable to use.

Description

Technical Field

[0001] The utility model relates to the technical field of machining equipment, in particular to a numerically controlled machine tool with a reverse tool setting function. Background Art

[0002] Machining lathe is one of the commonly used processing equipment. It clamps the workpiece by the chuck installed on the processing spindle, and then uses the tool on the cutter head for effective processing. When the tool is worn or replaced with a new one during the processing, the tool needs to be corrected again. In the absence of a tool setter, manual correction of tool wear is required. With the emergence of automatic tool setters, correction can be performed through the automatic tool setter, which greatly improves the accuracy.

[0003] The existing automatic tool setter is installed on the side of the spindle. There is a drive motor inside the tool setter that can lower the swing arm to enter the tool calibration state, and swing it up to retract it for storage. There is a probe at the front of the swing arm. The probe is a square block that can touch the tool in five directions and perform tool calibration. Specifically, when the tool tip touches the probe, a value is generated. This value will automatically calculate the difference with the original set constant. The difference is corrected to the corresponding tool wear in the CNC system, which can ensure that the accuracy of the machined parts is within a certain range to ensure the processing quality. In addition, after setting the constant, subsequent corrections are all controlled by program, which can automatically correct and save manpower.

[0004] Due to the limitation of the installation position of the automatic tool setter, the automatic tool setter has certain usage restrictions, such as size, that is, the size of the part and the size of the fixture. When the part is large, the fixture also needs to match the larger outer diameter. At this time, the larger fixture will occupy the installation position space of the automatic tool setter, resulting in the automatic tool setter being unable to be installed in place, thereby limiting the size and model selection of the automatic tool setter, and even the conventional installation position cannot be fixed and used. Summary of the Invention

[0005] The technical problem to be solved by the utility model is to provide a CNC machine tool with a reverse tool setting function, wherein the tool setting instrument has no restrictions on installation, a wide range of models to be selected, and is convenient and reliable to use.

[0006] In order to solve the above technical problems, the utility model provides a CNC machine tool with a reverse tool setting function, including a machine tool body, wherein a spindle, a tool disc and two parallel first mounting rails and a second mounting rail are provided on the machine tool body, the tool disc is set on the first mounting rail through a multi-axis moving component, a tool is installed on the tool disc, a tailstock is provided on the second mounting rail, and a sliding mounting platform is also provided on the second mounting rail between the tailstock and the spindle, a mounting vertical plate is provided on the sliding mounting platform, a tool setting instrument is installed on the mounting vertical plate, an arc-shaped avoidance protection plate is provided on the top of the mounting vertical plate, and a groove protection block is provided on the arc-shaped avoidance protection plate.

[0007] Furthermore, the sliding mounting platform is provided with a positioning block on one side surface of the multi-axis moving component, the positioning block is provided with a slot, and the multi-axis moving component is provided with a driving cylinder, and the positioning shaft of the driving cylinder can extend into the positioning block.

[0008] Furthermore, the sliding mounting platform includes a base and a bottom plate, a guide protrusion is provided at the bottom of the base, the bottom plate abuts against the bottom surface of the guide protrusion and cooperates with the base to lock to form two limiting spaces, and the sliding mounting platform is set on the second mounting rail through the two limiting spaces.

[0009] Furthermore, a locking screw is provided on the base, and the locking screw is used to abut against the second mounting rail.

[0010] Furthermore, the mounting vertical plate is an L-shaped bracket, the arc-shaped avoidance protection plate is fixed on the L-shaped bracket, a positioning edge is provided on the base corresponding to the L-shaped bracket, and the L-shaped bracket rests on the positioning edge and is locked and connected to the base.

[0011] Furthermore, an anti-collision detection component is provided on the tailstock or the sliding mounting platform, and the anti-collision detection component is used to detect the relative position between the tailstock and the sliding mounting platform.

[0012] Furthermore, the anti-collision detection component includes a distance sensor, which is used to measure the distance between the tailstock and the sliding mounting platform.

[0013] Furthermore, the anti-collision detection component includes a photoelectric switch and a trigger rod, one end of the trigger rod is set through two mounting plates, a compression end plate and a spring are set on the trigger rod between the two mounting plates, and a trigger protrusion is set on the tail of the trigger rod. The trigger protrusion cooperates with the photoelectric switch to determine the position between the tailstock and the sliding mounting platform.

[0014] Beneficial effects of the utility model:

[0015] 1. By setting up a sliding mounting platform on the existing track for installing the tool setter, the tool setter is not interfered with by the fixture and the workpiece, and the tool setter measurement is not limited by size.

[0016] 2. The sliding mounting platform can move on the track without affecting the movement of the tailstock, that is, without affecting the normal operation of the machine tool.

[0017] 3. Through the setting of anti-collision detection components, the tailstock will not collide with the sliding mounting platform during movement, effectively protecting the tool setter. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the installation structure of the tool setting instrument of the utility model from the first perspective;

[0020] Figure 3 This is a schematic diagram of the tool setting instrument installation structure from a second perspective of the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of the driving cylinder portion of the utility model;

[0022] Figure 5 This is a schematic diagram of the installation position structure of the anti-collision detection component of the utility model;

[0023] Figure 6 It is a structural schematic diagram of the anti-collision detection component of the utility model. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0025] Reference Figures 1 to 4As shown, an embodiment of a CNC machine tool with a reverse tool setting function of the present invention includes a machine tool body 1, on which a spindle 2, a cutter head 3 and two parallel first mounting rails 4 and second mounting rails 5 are provided. The first mounting rail and the second mounting rail are both existing structures. The second mounting rail is composed of two parallel metal strips. The cutter head is set on the first mounting rail through a multi-axis moving component 111. The cutter head is driven to move on the first mounting rail by the multi-axis moving component and can be driven to move to a corresponding processing position. A tool 6 is installed on the cutter head for processing. A tailstock 7 is provided on the second mounting rail, and the tailstock is mainly used to hold some longer parts tightly. A sliding mounting platform 8 is also provided on the second mounting rail between the tailstock and the spindle. The sliding mounting platform is provided with a mounting vertical plate 9, and a tool setter 10 is installed on the mounting vertical plate. An arc-shaped avoidance protection plate 11 is provided on the top of the mounting vertical plate, and a groove protection block 12 is provided on the arc-shaped avoidance protection plate. When the tool setter is in the initial state, its swing arm is in an upward state, and the probe is located in the groove protection block for effective protection. The arc-shaped avoidance protection plate avoids the protruding components on the tailstock while fixing the groove protection block.

[0026] The installation position of the above-mentioned tool setter is to transfer the tool setter installed on the outer housing of the spindle in the prior art to a sliding mounting platform. The sliding mounting platform can slide on the second mounting track, so that the fixture and workpiece size will not interfere with the tool setter. When the tool needs to be adjusted, the tool disc is moved to the corresponding position through the multi-axis moving assembly, and then the tool setter is rotated and released to detect the tool on the tool disc. The multi-axis moving assembly drives the tool to move to cooperate with the detection.

[0027] Since the sliding mounting platform is movable, its position can change. When it changes, the relative position of the tool setter and the tool on the cutter disc will change, so that the axis moving assembly cannot find the exact position. Therefore, a positioning block 13 is provided on the side surface of the sliding mounting platform located at the multi-axis moving assembly, and a slot 14 is provided on the positioning block. A driving cylinder 15 is provided on the multi-axis moving assembly, and the positioning shaft of the driving cylinder can extend and extend into the positioning block. The moving direction of the sliding mounting platform is located in the radial direction of the positioning shaft. Therefore, when the positioning shaft extends into the slot, the multi-axis moving assembly moves along the first mounting track, which can drive the sliding mounting platform to move synchronously, and after extending, the position between the cutter disc and the tool setter is fixed. When the position is determined, the relative position of the tool setter and the tool can also be determined. Then the positioning shaft retracts, and the multi-axis moving assembly drives the tool on the cutter disc to move for tool setting operation.

[0028] The cam 16 is fixed to the workpiece 16 by means of a guide rail 17 and a bottom plate 17, and the bottom plate 17 is provided with a guide protrusion 18 at the bottom of the base. The bottom plate abuts against the bottom surface of the guide protrusion and is locked with the base to form two limit spaces 19. The cam 16 is fixed to the workpiece 16 by means of the two limit spaces. The cam 16 is fixed to the workpiece 16 by means of the two limit spaces. The cam 16 is fixed to the workpiece 16 by means of the two limit spaces. The cam 16 is fixed to the workpiece 16 by means of the two limit spaces. The cam 16 is fixed to the workpiece 16 by means of the two limit spaces. The cam 16 is fixed to the workpiece 16 by means of the two limit spaces. The cam 16 is fixed to the workpiece 16 by means of the two limit spaces. The cam 16 is fixed to the workpiece 16 by means of the two limit spaces. The cam 16 is fixed to the workpiece 16 by means of the two limit spaces. The cam 16 is fixed to the workpiece 16 by means of the two limit spaces. The cam 16 is fixed to the workpiece 16 by means of the two limit spaces. The above-mentioned locking method is: a locking screw is provided on the base, and the locking screw is used to abut against the second mounting rail. After abutment, the locking screw continues to be rotated. The locking screw can lift the base upward through the reaction force, and also drive the bottom plate to move upward. The bottom plate finally abuts against the bottom of the second mounting rail, and as the pressure applied increases, an effective clamping and fixing effect is achieved.

[0029] When the sliding mounting platform is in a fixed position, the multi-axis moving component records its position after one positioning. When the sliding mounting platform does not move, multiple tool setting operations do not require position verification and can be performed directly according to the recorded position without the need for the positioning shaft of the driving cylinder to extend into the slot for positioning operations.

[0030] After the sliding mounting platform moves, if it is manually operated, it is necessary to extend the positioning shaft of the driving cylinder into the slot for positioning. If it is moved in coordination with the driving cylinder, after moving into position, first lock the sliding mounting platform on the second mounting rail to ensure that the position does not change. This position is the relative position point for the tool setting operation.

[0031] A positioning block can also be set on the tailstock, which is consistent with the movement principle of the sliding mounting platform. By coordinating the movement of multi-axis moving components, the use of active moving components can be reduced, thereby reducing the preparation cost.

[0032] The sliding mounting platform is made of metal and has a large weight. In order to facilitate production and preparation, it is optimized and designed. The mounting vertical plate is designed as an L-shaped bracket. The arc-shaped avoidance protection plate is fixed on the L-shaped bracket. A positioning edge 20 is provided on the base corresponding to the L-shaped bracket. The L-shaped bracket rests on the positioning edge and is locked and connected to the base. The L-shaped bracket is separated from the base, and then the installation position is determined by the positioning plate and then locked and fixed, which facilitates assembly and reduces the difficulty of preparation.

[0033] Reference Figure 5 As shown, since the tailstock and the sliding mounting platform are both on the second mounting track, there is interference between their movement, and collisions can cause damage to the equipment. Therefore, an anti-collision detection component 21 is provided on the tailstock or the sliding mounting platform. The anti-collision detection component is used to detect the relative position between the tailstock and the sliding mounting platform. Specifically, the anti-collision detection component can be a distance sensor, which is used to measure the distance between the tailstock and the sliding mounting platform. When the distance is close, it means that a collision is about to occur.

[0034] Of course, refer to Figure 6 As shown, the anti-collision detection assembly can also be designed to include a photoelectric switch 22 and a trigger rod 23. One end of the trigger rod passes through two mounting plates 27. A compression end plate 24 and a spring 25 are installed between the two mounting plates. A trigger protrusion 26 is installed at the end of the trigger rod. The trigger protrusion cooperates with the photoelectric switch to determine the position between the tailstock and the sliding mounting platform. The spring compresses the compression end plate, keeping the trigger rod extended. In this extended state, the trigger protrusion is located outside the photoelectric switch. When the detection tailstock and the sliding mounting platform approach, the trigger rod first abuts against the side of the detection tailstock or the sliding mounting platform. As the trigger rod continues to move, the compression end plate compresses the spring. The trigger protrusion is located on the trigger rod and does not move. While the mounting plate and the photoelectric switch continue to move, the trigger protrusion approaches the photoelectric switch. When the trigger protrusion enters the detection area of the photoelectric switch, the photoelectric switch is triggered, indicating an impending collision and stopping movement. This simple structure and low cost are the advantages of the anti-collision detection assembly.

[0035] The above embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Any equivalent substitution or modification made by those skilled in the art based on the present invention shall fall within the protection scope of the present invention.

Claims

1. A CNC machine tool with a reverse tool setting function, comprising a machine tool body, wherein the machine tool body is provided with a spindle, a cutter head, and two parallel first and second mounting rails, wherein the cutter head is provided on the first mounting rail via a multi-axis moving assembly, a tool is provided on the cutter head, and a tailstock is provided on the second mounting rail, wherein: A sliding mounting platform is also provided on the second mounting track between the tailstock and the main spindle, a mounting vertical plate is provided on the sliding mounting platform, a tool setting instrument is installed on the mounting vertical plate, an arc-shaped avoidance protection plate is provided on the top of the mounting vertical plate, and a groove protection block is provided on the arc-shaped avoidance protection plate.

2. The CNC machine tool with reverse tool setting function according to claim 1, characterized in that: The sliding installation platform is provided with a positioning block on one side surface of the multi-axis moving component, the positioning block is provided with a slot, and the multi-axis moving component is provided with a driving cylinder, and the positioning shaft of the driving cylinder can extend into the positioning block.

3. The CNC machine tool with reverse tool setting function according to claim 1, characterized in that: The sliding mounting platform includes a base and a bottom plate. A guide protrusion is provided at the bottom of the base. The bottom plate abuts against the bottom surface of the guide protrusion and cooperates with the base to lock to form two limiting spaces. The sliding mounting platform is set on the second mounting track through the two limiting spaces.

4. The CNC machine tool with reverse tool setting function according to claim 3, characterized in that: The base is provided with a locking screw, and the locking screw is used to abut against the second mounting rail.

5. The CNC machine tool with reverse tool setting function according to claim 3, characterized in that: The mounting vertical plate is an L-shaped bracket, the arc-shaped avoidance protection plate is fixed on the L-shaped bracket, a positioning edge is provided on the base corresponding to the L-shaped bracket, and the L-shaped bracket rests on the positioning edge and is locked and connected with the base.

6. The CNC machine tool with reverse tool setting function according to claim 1, characterized in that: The tailstock or the sliding mounting platform is provided with an anti-collision detection component, and the anti-collision detection component is used to detect the relative position between the tailstock and the sliding mounting platform.

7. The CNC machine tool with reverse tool setting function according to claim 6, characterized in that: The anti-collision detection assembly includes a distance sensor, which is used to measure the distance between the tailstock and the sliding mounting platform.

8. The CNC machine tool with reverse tool setting function according to claim 6, characterized in that: The anti-collision detection component includes a photoelectric switch and a trigger rod. One end of the trigger rod is set through two mounting plates. A compression end plate and a spring are set on the trigger rod between the two mounting plates. A trigger protrusion is set on the tail of the trigger rod. The trigger protrusion cooperates with the photoelectric switch to determine the position between the tailstock and the sliding mounting platform.

Images