Numerical control gantry hydraulic tool loosening frame

Abstract

The utility model discloses a numerical control gantry hydraulic loosening knife rest, which relates to the technical field of hydraulic loosening knife rests and comprises a knife rest stand column, a first motor is fixedly connected to the top of the knife rest stand column, a knife rest fixing plate is arranged on one side of the knife rest stand column and is in sliding connection with the knife rest stand column, and the hydraulic loosening knife rest is fixedly connected to the knife rest fixing plate. A hydraulic chuck is arranged at the bottom of the hydraulic tool loosening frame; according to the hydraulic tool loosening frame, the tool bit is clamped in an elastic mode through the hydraulic chuck, the clamping force of a tool is accurately controlled, the tool needs to bear large cutting force in the high-speed cutting process, the clamping force of the hydraulic chuck can be accurately adjusted through the pressure sensor and the numerical control system, it is ensured that the tool is clamped reliably, and the machining precision is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of hydraulic tool holder, specifically a numerical control gantry hydraulic tool holder. BACKGROUND

[0002] In the field of modern numerical control machining, especially in the application of numerical control gantry machine tools, the machining process is increasingly complex, and frequent tool replacement is often required to complete different processes. For example, in the large die manufacturing, aerospace parts machining, shipbuilding and other industries, the machining of workpieces may require milling, boring, drilling and other machining operations, and different operations have different requirements for the type, size and shape of tools. Therefore, an efficient, accurate and reliable tool changing system has become a key factor in ensuring machining efficiency and quality.

[0003] Traditional mechanical tool releasing devices often use manual or simple mechanical structures to achieve tool clamping and loosening. This method is tedious and time-consuming when facing frequent tool replacement requirements. For example, in some small mechanical processing workshops using ordinary milling machines, a manual wrench is used to loosen and clamp the tool, and each tool replacement may take several minutes or even longer, greatly reducing the machining efficiency.

[0004] The mechanical tool releasing device is not accurate in the control of clamping force. Since it relies on the elastic deformation of the mechanical structure or the simple screw nut mechanism, it is difficult to achieve accurate adaptation of the clamping force required by different tools. In high-speed cutting and other machining scenarios with high requirements for tool clamping force, the tool may loosen or be damaged due to excessive clamping force. INVENTION CONTENTS

[0005] The utility model aims at providing a numerical control gantry hydraulic tool holder. A plurality of tool bits are connected to the tool holder through buckles. During the machining process, the tool bits can be quickly switched according to different process requirements. This multi-tool configuration reduces the time spent searching for and installing tools when replacing tools, further improving the machining efficiency. At the same time, the hydraulic tool holder is provided with a hydraulic chuck at the bottom, and a pressure sensor is provided inside the hydraulic tool holder and electrically connected to the numerical control system. During the tool clamping process, the hydraulic system can provide stable and sufficient clamping force to ensure that the tool is reliably clamped. In high-speed cutting machining, reliable tool clamping can prevent the tool from loosening during the machining process, ensuring the safety and accuracy of the machining. The technical problems raised in the above background technology are solved.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] The utility model provides a numerical control gantry hydraulic tool holder, its characterized in being: including the tool holder stand, the first motor is fixedly connected to the top of tool holder stand, and the tool holder stand one side is equipped with the tool holder fixed plate, and with tool holder stand slidingly connected, the hydraulic tool holder is fixedly connected on the tool holder fixed plate, and the hydraulic tool holder bottom is equipped with the hydraulic chuck.

[0008] As a further technical scheme of the utility model, the other side of the tool holder stand is equipped with a sliding frame and is bolted to the tool holder stand, one side of the sliding frame is slidingly connected to a cutter head support, the cutter head support front end bottom is equipped with a cutter head, and a plurality of tool bits are buckle-connected to the cutter head.

[0009] As a further technical scheme of the utility model, the cutter head middle is bolted to a rotating shaft, the other end of the rotating shaft extends above the cutter head support and is rotatably connected to the cutter head support through a bearing; a pulley is fitted and installed on the rotating shaft above the cutter head support, one side of the pulley is equipped with a cutter head motor and is fixedly connected to the cutter head support, one end of the cutter head motor output shaft is also fitted and installed with a pulley, and the pulley is drivingly connected to the pulley fitted and installed on the rotating shaft through a belt.

[0010] As a further technical scheme of the utility model, one end of the sliding frame is bolted to a second motor, a rectangular groove is formed in the sliding frame, a second screw rod is arranged in the rectangular groove, one end of the second screw rod is connected to the second motor, and the other end is rotatably connected to the other end of the sliding frame; a sliding block is rotatably connected to the second screw rod, and the sliding block is fixedly connected to the cutter head support.

[0011] As a further technical scheme of the utility model, a first screw rod is fitted and connected to the first motor output shaft, and a stop block is fixedly connected to the other end of the first screw rod; a sliding block is rotatably connected to the first screw rod, and the sliding block is fixedly connected to the tool holder fixed plate.

[0012] As a further technical scheme of the utility model, two slide rails are fixedly connected to one side of the tool holder stand, and a sliding block is fitted and installed on each slide rail, and the sliding block is fixedly connected to the tool holder fixed plate.

[0013] As a further technical scheme of the utility model, a pressure sensor is arranged in the hydraulic tool holder, and the pressure sensor is electrically connected to the numerical control system.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] The utility model discloses, through pressure sensor and numerical control system electricity is connected, can real -time monitoring hydraulic slack tool holder internal pressure, accurate control tool clamping force, when high -speed cutting processing, tool needs to bear bigger cutting force, through pressure sensor, numerical control system can accurate adjustment hydraulic chuck's clamping force, ensure that tool clamping is reliable, improve processing accuracy,

[0016] The utility model discloses, the configuration of multiple tool bits on the cutter head, when switching tools between different processes, without spending a lot of time to find and install tools as in the traditional way, in complex processing task, the tool bit on the cutter head can be quickly switched, reducing the time of tool replacement, at the same time, the cutter holder fixing plate, cutter head support and other components are driven by the motor, can be quickly moved to the specified position, in the processing flow of multiple processes, the cutter head and cutter head support are quickly moved to the specified position by the motor drive, which can greatly shorten the processing cycle.

[0017] The utility model discloses, stable clamping force can reduce tool vibration and wear and tear in the processing, when tool clamping force is stable, the cutting force of tool is even, reduced tool wear and tear, in high -speed cutting processing, the vibration of tool can lead to tool wear and tear aggravation, pressure sensor can pass through control clamping force, reduce tool vibration, thereby prolonging tool service life. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the three-dimensional structure schematic diagram of the utility model.

[0019] Figure 2 It is the front view of the utility model Figure 1 .

[0020] Figure 3 It is the plan view of the utility model Figure 1 .

[0021] Figure 4 It is the left view of the utility model Figure 1 .

[0022] Figure 5 It is another perspective three-dimensional structure schematic diagram of the utility model Figure 1 .

[0023] Figure 6 It is the local structure amplification schematic diagram of the utility model Figure 3 .

[0024] In the drawing: 1 - tool holder stand, 2 - first motor, 3 - cutter holder fixing plate, 4 - hydraulic slack tool holder, 5 - first screw rod, 6 - sliding frame, 7 - second motor, 8 - cutter head support, 9 - cutter head motor, 10 - cutter head, 11 - tool bit, 12 - rotating shaft, 13 - second screw rod, 14 - slide rail, 15 - sliding block, 16 - hydraulic chuck. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the scope of protection of the utility model.

[0026] Please refer to Figures 1-6 In the embodiments of the utility model, the knife rest stand 1 is provided with the first motor 2 at the top, the knife rest fixing plate 3 is arranged on one side of the knife rest stand 1 and is in sliding connection with the knife rest stand 1, the hydraulic knife rest 4 is fixedly connected to the knife rest fixing plate 3, and the hydraulic chuck 16 is arranged at the bottom of the hydraulic knife rest 4.

[0027] By adopting the above technical scheme, the first motor 2 on the knife rest stand 1 drives the knife rest fixing plate 3 to slide along the knife rest stand 1, which enables the hydraulic knife rest 4 to quickly move to a suitable position. When it is necessary to clamp the tool, the hydraulic chuck 16 at the bottom of the hydraulic knife rest 4 can generate strong clamping force, ensuring that the tool is stably fixed. By controlling the movement of the first motor 2, the tool can be conveniently loosened and clamped, and the machining efficiency is improved.

[0028] Further, the sliding connection mode of the knife rest fixing plate 3 and the knife rest stand 1 enables the position of the knife rest to be accurately controlled, which is very important for the positioning of the tool during machining. In numerical control machining, accurate positioning of the knife rest can ensure the position accuracy of the tool during machining, thereby improving the machining quality.

[0029] In the embodiments, the other side of the knife rest stand 1 is provided with the sliding frame 6 and is in bolt connection with the knife rest stand 1, one side of the sliding frame 6 is in sliding connection with the cutter disc support 8, the cutter disc 10 is arranged at the front end of the cutter disc support 8, and the plurality of tool bits 11 are buckle-connected to the cutter disc 10.

[0030] By adopting the above technical scheme, the plurality of tool bits 11 are buckle-connected to the cutter disc 10. In actual machining, different types and specifications of tools are often required for different processes. For example, a large-diameter milling cutter is required for rough machining to quickly remove excess amount, and a small-diameter tool is required for finish machining to ensure surface smoothness. The configuration of the plurality of tool bits 11 enables the operator to quickly switch the tool bits during machining without frequently taking the tools from outside, which greatly reduces the tool replacement time and significantly improves the machining efficiency.

[0031] Further, the slide frame 6 is slidably connected to the cutter disc support 8, so that the cutter disc support 8 can move along the slide frame 6 smoothly. This design gives the cutter disc 10 and the tool bits 11 thereon accurate and flexible positioning capability. When facing the processing needs of a workpiece with a complex shape, the cutter disc 10 can be quickly moved to the appropriate position, and the corresponding tool bit 11 can be accurately positioned.

[0032] In this embodiment, the cutter disc 10 is bolted with a rotating shaft 12, and the other end of the rotating shaft 12 extends above the cutter disc support 8 and is rotatably connected to the cutter disc support 8 through a bearing. A pulley is installed above the rotating shaft 12 of the cutter disc support 8, and a cutter motor 9 is arranged on one side of the pulley and fixedly connected to the cutter disc support 8. The output shaft of the cutter motor 9 is also connected with a pulley, and the pulley is connected to the pulley installed on the rotating shaft 12 through a belt.

[0033] By adopting the above technical solution, the cutter motor 9 is used as a power drive, and the power is transmitted to the rotating shaft 12 through belt transmission, thereby driving the cutter disc 10 to rotate. The cutter disc 10 and the cutter disc support 8 are quickly moved to the specified position at the bottom of the hydraulic tool holder 4 by the cutter motor 9. The configuration of the multiple tool bits 11 on the cutter disc 10 makes it unnecessary to spend a lot of time to find and install the tool as in the traditional way when switching the tool between different processes. In complex processing tasks, the tool bits 11 on the cutter disc 10 can be quickly switched, reducing the time for tool replacement and greatly shortening the processing cycle.

[0034] In this embodiment, the slide frame 6 is bolted with a second motor 7 at one end, and a rectangular groove is formed in the slide frame 6, and a second screw rod 13 is arranged in the rectangular groove. One end of the second screw rod 13 is connected to the second motor 7, and the other end is rotatably connected to the other end of the slide frame 6. A sliding block is rotatably connected to the second screw rod 13, and the sliding block is fixedly connected to the cutter disc support 8.

[0035] By adopting the above technical solution, the second motor 7 drives the second screw rod 13 to rotate. Since the second screw rod 13 is rotatably connected to the sliding block, and the sliding block is fixedly connected to the cutter disc support 8, when the second screw rod 13 rotates, the sliding block will move along the axial direction of the second screw rod 13 according to the principle of screw transmission. This transmission method has the characteristics of high precision and can realize accurate control of the position of the cutter disc support 8.

[0036] In this embodiment, the first motor 2 is connected with a first screw rod 5 on the output shaft, and the other end of the first screw rod 5 is fixedly connected with a stop block. A sliding block is rotatably connected to the first screw rod 5, and the sliding block is fixedly connected to the tool holder fixed plate 3.

[0037] By adopting the above technical scheme, the first motor 2 drives the first screw rod 5 to rotate, the first screw rod 5 is rotationally connected with the sliding block in cooperation, and the sliding block is fixedly connected with the tool holder fixed plate 3; according to the characteristics of screw rod transmission, when the first screw rod 5 rotates, the sliding block will move linearly along the axial direction of the first screw rod 5, thereby driving the tool holder fixed plate 3 to move; this screw rod transmission mode has high precision and can accurately control the position of the tool holder fixed plate 3; in some high-precision machining tasks, the position of the tool holder fixed plate 3 is accurately controlled, so that the machining precision can reach a high level, and the tool can accurately reach the required machining position.

[0038] Further, the other end of the first screw rod 5 is fixedly connected with a stop block, which plays a limiting and protecting role; when the sliding block moves on the first screw rod 5, if an abnormal situation occurs, the sliding block will be stopped by the stop block when it moves to a certain position, thereby avoiding excessive movement of the sliding block and the tool holder fixed plate 3, preventing possible collision or damage, and ensuring the safety of the equipment and the operator.

[0039] In the embodiment, the tool holder column 1 is fixedly connected with two slide rails 14 on one side of the tool holder fixed plate 3, and each slide block 15 is installed on the slide rail 14 in cooperation, and the slide block 15 is fixedly connected with the tool holder fixed plate.

[0040] By adopting the above technical scheme, the two slide rails 14 are fixedly connected with the tool holder column 1, and the slide blocks 15 are installed on the slide rails 14 in cooperation, and the slide blocks 15 are fixedly connected with the tool holder fixed plate 3; this design provides accurate guidance for the movement of the tool holder fixed plate 3; when the tool holder fixed plate 3 moves, the slide blocks 15 slide along the slide rails 14, thereby limiting the movement track of the tool holder fixed plate 3, so that the tool holder fixed plate 3 can only move in the predetermined straight line direction, avoiding deviation or shaking of the tool holder fixed plate 3 during movement, ensuring the accuracy of the machining path of the tool, and thereby improving the machining precision.

[0041] In the embodiment, the hydraulic tool holder 4 is internally provided with a pressure sensor, and the pressure sensor is electrically connected with the numerical control system.

[0042] By adopting the above technical scheme, the pressure sensor can accurately feedback the clamping state of the tool by monitoring the internal pressure of the hydraulic tool holder 4 in real time; in numerical control machining, different tools and different machining processes have different requirements for clamping force; for example, in high-speed milling, the tool needs to withstand large centrifugal force and cutting resistance, so high-strength clamping force is required; in fine boring and other fine processes, excessive clamping force can easily damage the workpiece, so the clamping force needs to be appropriately reduced; by connecting the pressure sensor with the numerical control system, the system can dynamically control the hydraulic system according to the preset clamping force standard, so that each clamping is accurate and correct, and the machining precision is stable.

[0043] The working principle of the utility model is: firstly, in the workpiece machining process, the first motor 2 on the top of the tool rest stand 1 is started, drives the first lead screw 5 connected therewith to rotate, because the sliding block matched with the rotation connection on the first lead screw 5 is fixed with the tool rest fixed plate 3, according to the lead screw transmission principle, the tool rest fixed plate 3 will slide up and down along the slide rail 14 slide block 15 on one side of the tool rest stand 1, thereby adjusting the height position of the hydraulic tool rest 4, the bottom hydraulic chuck 16 and the tool head, accurately positioning the tool in the vertical direction;

[0044] When the tool head 11 needs to be switched to perform different processes in the machining process, the cutter head motor 9 is started, the pulley on the output shaft of the cutter head motor 9 drives the pulley on the rotating shaft 12 through the belt, the rotating shaft 12 is bolted with the cutter disc 10, so that the cutter disc 10 stably rotates on the cutter disc support 8 until the target tool head 11 is rotated to the accurate replacement position;

[0045] The hydraulic tool rest 4 is responsible for the clamping and loosening operation of the tool, when the tool needs to be clamped, the hydraulic system applies pressure to the hydraulic chuck 16 under the control of the numerical control system, firmly fixing the tool; At this time, the pressure sensor in the hydraulic tool rest 4 monitors the pressure value in real time and feeds back the data to the numerical control system, if the pressure does not reach the preset standard, the numerical control system will instruct the hydraulic system to continue to increase the pressure until the clamping force reaches the standard, ensuring that the tool is stable during machining; When the tool needs to be replaced, the numerical control system controls the hydraulic system to release pressure to loosen the tool, which is convenient for replacement; Each part moves in an orderly manner, from tool positioning, switching, to clamping and loosening, each link is accurately matched, realizing automatic and high-precision machining process.

[0046] For those skilled in the art, it is obvious that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0047] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, the skilled person should regard the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by the skilled person.

Claims

1. A numerical control hydraulic loose tool holder for a portal, characterized by: Including the tool rest column (1), the first motor (2) is fixedly connected on the top of the tool rest column (1), the tool rest column (1) is equipped with the tool rest fixed plate (3) on one side, and is slidably connected with the tool rest column (1), the hydraulic tool rest (4) is fixedly connected on the tool rest fixed plate (3), and the hydraulic tool rest (4) is equipped with the hydraulic chuck (16) on the bottom.

2. The numerical control hydraulic loose tool holder of the portal type according to claim 1, characterized in that: The other side of the tool rest column (1) is equipped with the sliding frame (6), and is bolted with the tool rest column (1), one side of the sliding frame (6) is slidably connected with the cutter disc support (8), the cutter disc support (8) is equipped with the cutter disc (10) on the front end bottom, and the cutter disc (10) is buckled with a plurality of tool bits (11).

3. The numerical control hydraulic loose tool holder of the gantry type according to claim 2, characterized in that: The rotating shaft (12) is bolted in the middle of the cutter disc (10), one end of the rotating shaft (12) extends to above the cutter disc support (8), and is rotatably connected with the cutter disc support (8) through the bearing; the rotating shaft (12) above the cutter disc support (8) is fitted with a pulley, one side of the pulley is equipped with the cutter disc motor (9), and is fixedly connected with the cutter disc support (8), one end of the output shaft of the cutter disc motor (9) is also fitted with a pulley, and the pulley is connected with the pulley fitted with the rotating shaft (12) through the belt drive.

4. The numerical control hydraulic loose tool holder of the gantry type according to claim 2, characterized in that: One end of the second motor (7) is bolted with the sliding frame (6), a rectangular groove is formed in the sliding frame (6), and the second screw rod (13) is arranged in the rectangular groove, one end of the second screw rod (13) is connected with the second motor (7), and the other end is rotatably connected with the other end of the sliding frame (6); the second screw rod (13) is rotatably connected with the sliding block, and the sliding block is fixedly connected with the cutter disc support (8).

5. The CNC hydraulic loosing tool holder gantry according to claim 1, characterized in that: The first screw rod (5) is fitted on the output shaft of the first motor (2), and the other end of the first screw rod (5) is fitted with the stop block; the first screw rod (5) is rotatably connected with the sliding block, and the sliding block is fixedly connected with the tool rest fixed plate (3).

6. The CNC hydraulic loosing tool holder gantry according to claim 1, characterized in that: The tool rest column (1) is fixedly connected with two slide rails (14) on one side of the tool rest fixed plate (3), and the sliding block (15) is fitted on the slide rail (14), and the sliding block (15) is fixedly connected with the tool rest fixed plate.

Images