A quick-change tool set mounting tool holder for numerical control machine tools

Abstract

The application relates to a tool holder for a numerical control machine tool, which can quickly replace a tool set, and belongs to the technical field of numerical control machine tools; a plurality of threaded rods are respectively threaded and connected to a plurality of mounting frames, a resisting plate is suspended in a mounting hole on the mounting frame, two first springs are fixedly arranged on the upper portion of the resisting plate, the upper end of the first spring is fixedly arranged in a groove arranged on the top wall in the mounting hole, a lifting rod is movably inserted into the plurality of threaded rods, a limiting plate is fixedly arranged at the lower end of the lifting rod and exposed from the threaded rod, the limiting plate is located in the mounting hole, a supporting block is movably arranged in the mounting hole, a second spring is fixedly arranged on the lifting rod, and the upper end of the second spring is connected with the inner top wall of the threaded rod; when the tool set is replaced, the locking and fixing state of the plurality of tools does not need to be controlled one by one, so that the tool set can be more conveniently and quickly replaced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of numerical control machine tools, in particular to a tool holder for numerical control machine tools with quick tool change. BACKGROUND

[0002] A numerical control machine tool is a kind of automatic machine tool equipped with a program control system. The existing tool holder for machine tools is generally locked and fixed to the tool set by a plurality of bolts. When the tool set needs to be replaced, the plurality of bolts need to be screwed one by one, which is low in efficiency and cannot realize quick tool change. Therefore, there is an urgent need for a tool holder for numerical control machine tools with quick tool change. SUMMARY

[0003] The present application aims to solve the above problems by providing a tool holder for numerical control machine tools with quick tool change, which is reasonable in design and convenient to use.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present application is as follows: it comprises a fixed frame and a mounting frame, the fixed frame is arranged in a "U" shape, and a plurality of mounting frames are arranged on the fixed frame;

[0005] It also comprises:

[0006] A plurality of threaded rods are arranged on the mounting frames, respectively, and are screwed into the mounting frames in pairs. A contact plate is suspended in the mounting port of the mounting frame. Two springs are fixedly arranged on the upper part of the contact plate. The upper end of the spring is fixedly arranged in the groove on the top wall of the mounting port.

[0007] A plurality of lifting rods are movably inserted into the threaded rods. The lower end of the lifting rod is fixedly arranged with a limiting plate after the threaded rod. The limiting plate is located in the mounting port. A synchronous adjusting mechanism is arranged on the fixed frame and matched with the threaded rod. A supporting block is movably arranged in the mounting port.

[0008] A plurality of springs are fixedly arranged on the lifting rod. The upper end of the spring is connected with the inner top wall of the threaded rod.

[0009] Through the above technical solution, the spring can apply a rebounding thrust to the contact plate, so that the contact plate can preliminarily limit the tool in the mounting port. By cooperating the synchronous adjusting mechanism, the threaded rod, the spring, the lifting rod and the limiting plate, the synchronous limiting and fixing state of the tools in the mounting port can be adjusted, and the tool set can be conveniently and quickly replaced.

[0010] Preferably, the synchronous adjusting mechanism comprises:

[0011] The adjusting frame is fixedly arranged on the fixed frame, a synchronous rod is rotatably arranged on the adjusting frame through a bearing, a plurality of worms are arranged on the synchronous rod, a motor is fixedly arranged on the left side wall of the adjusting frame, the output end of the motor is connected with the synchronous rod, and an independent adjusting and controlling mechanism matched with the worms is arranged on the adjusting frame;

[0012] The fixing block is arranged on the mounting frame, the upper end of the threaded rod is movably arranged on the mounting frame, a worm wheel is movably arranged on the threaded rod, the worm wheel is movably arranged in the fixing block, and the rear side of the worm wheel is exposed from the fixing block and is arranged in mesh with the worm.

[0013] The first guide rod is movably arranged on the outer ring wall of the threaded rod, and the first guide rod is fixedly arranged on the worm wheel.

[0014] Through the above technical scheme, the motor can synchronously drive the plurality of worms to rotate through the synchronous rod, and then the synchronous rotation of the plurality of worm wheels is realized, so that the plurality of threaded rods can be synchronously moved up and down, and the synchronous adjustment of the locked and fixed state of the plurality of cutters can be realized.

[0015] Preferably, the independent adjusting and controlling mechanism comprises:

[0016] The second guide rod is movably arranged on the worm, and the second guide rod is fixedly arranged on the synchronous rod.

[0017] The first electric push rod is fixedly arranged in the adjusting frame, the output end of the first electric push rod is fixedly provided with a stop block, and the stop block is movably arranged at the right end of the worm.

[0018] The control switch is fixedly arranged in the threaded rod, the control switch is electrically connected with the first electric push rod, and the control switch is movably arranged in cooperation with the upper end of the lifting rod.

[0019] Through the above technical scheme, the movable state of the plurality of worms can be independently controlled by cooperation of the control switch, the first electric push rod and the stop block. After the limiting plate completely limits a certain cutter, the threaded rod corresponding to the cutter and the worm wheel can stop rotating, and the synchronous rod can still rotate, so that the corresponding worm is in a movable state, and the other worms can continue to drive the other worm wheels to rotate, so as to lock the other cutters which are not completely limited.

[0020] Preferably, the mounting frame is provided with a height adjusting mechanism, and the height adjusting mechanism comprises:

[0021] The guide strips are fixedly arranged on the two side walls of the mounting port, movably arranged in the guide grooves on the side walls of the supporting block, and inclined upward at the rear end.

[0022] The sliding block is slidably arranged in the sliding groove on the bottom wall of the mounting port, and two guide columns are fixedly arranged on the upper portion of the sliding block and movably inserted into the cylindrical groove on the lower portion of the supporting block.

[0023] The second threaded rod is rotatably connected to the mounting block through the bearing and rotatably connected to the sliding block through the screw.

[0024] The second threaded rod is rotatably connected to the mounting block through the bearing and rotatably connected to the sliding block through the screw.

[0025] Preferably, a plurality of second electric push rods are fixedly arranged on the upper portion of the fixed frame, the output ends of the second electric push rods are fixedly connected to the mounting frame, and the second electric push rods can drive the mounting frame to move forward, so that the cutting tools on the mounting frame move forward away from other cutting tools to work.

[0026] Preferably, a guide support rod is fixedly arranged on the rear side wall of the mounting frame and movably connected to the fixed frame, which can provide movement guidance for the mounting frame, make the movement process more stable, and provide auxiliary support for the mounting frame.

[0027] Preferably, a plurality of second electric push rods are fixedly arranged on the upper portion of the fixed frame, the output ends of the second electric push rods are fixedly connected to the mounting frame, and the second electric push rods can drive the mounting frame to move forward, so that the cutting tools on the mounting frame move forward away from other cutting tools to work.

[0028] Preferably, a front side of the lower side wall of the abutting plate is provided with an upwardly inclined chamfer, which is more convenient for inserting and mounting the cutting tool into the mounting port.

[0029] Compared with the prior art, the present application has the following advantages:

[0030] 1. The synchronous adjustment mechanism can realize synchronous control of the plurality of first threaded rods, and the cooperation with the abutting plate, the first spring, the lifting rod, the limiting plate and the second spring can realize simultaneous limiting and locking of the plurality of installed cutting tools, thereby facilitating quick replacement of the cutting tool group.

[0031] 2. The cooperation of the independent regulation mechanism can independently control the movement of the plurality of worms, avoiding the phenomenon that the synchronous rod cannot continue to rotate after fixing and locking a cutting tool, and thereby avoiding the phenomenon that the remaining cutting tools cannot be fixed and locked.

[0032] 3. By cooperating with the height adjusting mechanism, the height of the cutter can be adjusted by adjusting the height of the supporting block. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 It is a structural schematic diagram of the present application.

[0034] Figure 2 It is a sectional view of the fixing frame, mounting frame, adjusting frame and fixing block in the present application.

[0035] Figure 3 It is an enlarged view of A part in Figure 2

[0036] Figure 4 It is a schematic diagram of the internal structure of the adjusting frame in the present application.

[0037] Figure 5 It is an enlarged view of B part in Figure 4

[0038] Figure 6 It is a sectional view of the first threaded rod in the present application.

[0039] Figure 7 It is a schematic diagram of the connection between the abutting plate and the non-slip pad in the present application.

[0040] BRIEF DESCRIPTION OF DRAWINGS

[0041] Fixing frame 1, mounting frame 2, first threaded rod 3, abutting plate 4, first spring 5, lifting rod 6, limiting plate 7, synchronous adjusting mechanism 8, adjusting frame 8-1, synchronous rod 8-2, worm 8-3, motor 8-4, fixing block 8-5, worm wheel 8-6, first guide rod 8-7, supporting block 9, independent control mechanism 10, second guide rod 10-1, first electric push rod 10-2, stop block 10-3, control switch 10-4, height adjusting mechanism 11, guide strip 11-1, sliding block 11-2, guide column 11-3, second threaded rod 11-4, second electric push rod 12, guide support rod 13, non-slip pad 14, second spring 15. DETAILED DESCRIPTION

[0042] The present application will be further described below in conjunction with the drawings. Example 1

[0043] As Figures 1-7 ​​As shown, the embodiment comprises a fixing frame 1 and a mounting frame 2, the fixing frame 1 is provided in a "U" structure, a plurality of mounting frames 2 are arranged on the fixing frame 1, a plurality of second electric push rods 12 are arranged on the upper part of the fixing frame 1 through bolts, the output end of the second electric push rod 12 is fixedly connected with the mounting frame 2 through bolts and supports, the second electric push rod 12 can drive the mounting frame 2 to move to the front side, so that the cutter on the mounting frame 2 moves forward away from other cutters to work, avoiding the metal scraps on the machine tool to splash on other cutters at will, a guide support rod 13 is arranged on the rear side wall of the mounting frame 2 through bolts, the guide support rod 13 is movably arranged on the fixing frame 1, which not only provides movement guide for the mounting frame 2, but also provides auxiliary support for the mounting frame 2, so that the movement process is more stable;

[0044] It also comprises:

[0045] A plurality of first threaded rods 3 are arranged on the mounting frames 2 in pairs, a resisting plate 4 is suspended in the mounting port of the mounting frame 2, a non-slip pad 14 is fixedly arranged on the lower side wall of the resisting plate 4, which can improve the friction between the resisting plate 4 and the cutter, a chamfer is arranged on the front side edge of the lower side wall of the resisting plate 4, which is inclined upward, so that the cutter can be more conveniently inserted into the mounting port, two first springs 5 are fixedly arranged on the upper part of the resisting plate 4, the upper end of the first spring 5 is fixedly arranged in the groove arranged on the top wall of the mounting port, and the counteracting elastic force of the first spring 5 applied to the resisting plate 4 can realize the preliminary clamping and limiting of the cutter in the mounting port;

[0046] A plurality of lifting rods 6 are movably inserted into the first threaded rods 3, a limiting plate 7 is fixedly arranged on the lower end of the lifting rod 6 exposed from the rear of the first threaded rod 3, the limiting plate 7 is located in the mounting port, a synchronous adjusting mechanism 8 is arranged on the fixing frame 1 and matched with the first threaded rod 3, and a supporting block 9 is movably arranged in the mounting port;

[0047] A plurality of second springs 15 are fixedly arranged on the lifting rod 6, and the upper end of the second spring 15 is connected with the inner top wall of the first threaded rod 3;

[0048] The synchronous adjusting mechanism 8 comprises:

[0049] Two adjusting frames 8-1 are fixedly arranged on the fixing frame 1 through bolts, a synchronous rod 8-2 is rotatably arranged on the adjusting frame 8-1 through a bearing, a plurality of worms 8-3 are arranged on the synchronous rod 8-2, a motor 8-4 is fixedly arranged on the left side wall of the adjusting frame 8-1 through bolts, the output end of the motor 8-4 is connected with the synchronous rod 8-2, and an independent adjusting and controlling mechanism 10 matched with the worm 8-3 is arranged on the adjusting frame 8-1;

[0050] A plurality of fixed blocks 8-5 are provided on the mounting racks 2 by bolts, the upper end of the threaded rod 3 is movably arranged on the mounting rack 2, a worm gear 8-6 is movably arranged on the threaded rod 3, the worm gear 8-6 is movably arranged in the fixed block 8-5, and the rear side of the worm gear 8-6 is exposed from the fixed block 8-5 and is meshed with the worm 8-3;

[0051] A plurality of first guide rods 8-7 are movably arranged on the outer ring wall of the threaded rod 3 in equal circular angle distribution, and the first guide rod 8-7 is fixedly arranged on the worm gear 8-6, the motor 8-4 can drive the plurality of worms 8-3 to rotate through the synchronous rod 8-2, thereby realizing the synchronous rotation of the plurality of worm gears 8-6, so that the plurality of threaded rods 3 can be synchronously moved up and down, and the synchronous adjustment of the locked state of the plurality of cutters can be realized.

[0052] The independent control mechanism 10 comprises:

[0053] A plurality of second guide rods 10-1 are movably arranged on the worm 8-3 in equal circular angle distribution, and the second guide rod 10-1 is fixedly arranged on the synchronous rod 8-2 through bolts;

[0054] A first electric push rod 10-2 is fixedly arranged in the adjusting rack 8-1 through bolts, and the output end of the first electric push rod 10-2 is fixedly arranged with a stop block 10-3, and the stop block 10-3 is movably arranged at the right end of the worm 8-3;

[0055] A control switch 10-4 is fixedly arranged in the threaded rod 3, the control switch 10-4 is electrically connected with the first electric push rod 10-2, and the control switch 10-4 is movably arranged in cooperation with the upper end of the lifting rod 6, through the cooperation of the control switch 10-4, the first electric push rod 10-2 and the stop block 10-3, the movable state of the plurality of worms 8-3 can be independently controlled, after the limiting plate 7 completely limits a certain cutter, the threaded rod 3 corresponding to the cutter and the worm gear 8-6 can stop rotating, while the synchronous rod 8-2 can still rotate, so that the corresponding worm 8-3 is in a moving state, and the other worms 8-3 can continue to drive the other worm gears 8-6 to rotate, thereby locking the other cutters which are not completely limited. Embodiment 2:

[0056] Referring to Figures 1-2 the embodiment 1, the mounting rack 2 is further improved and provided with a height adjusting mechanism 11, the height adjusting mechanism 11 comprises:

[0057] The guide strip 11-1 is two, which are respectively arranged on the two side walls of the installation opening through bolt fixing, and is movably arranged in the guide groove arranged on the side wall of the supporting block 9, and the guide strip 11-1 is arranged with the rear end upwardly inclined;

[0058] The sliding block 11-2 is slidably arranged in the sliding groove arranged on the bottom wall of the installation opening, and the upper part of the sliding block 11-2 is fixedly provided with two guide columns 11-3, which are movably inserted into the cylindrical groove arranged on the lower part of the supporting block 9;

[0059] The second threaded rod 11-4 is rotatably inserted into the installation block through the bearing, and is rotatably inserted into the sliding block 11-2 through the thread, when the second threaded rod 11-4 is rotated, the sliding block can drive the supporting block 9 to move through the guide column 11-3, and the movement of the supporting block 9 is guided by the guide strip 11-1, so that the installation height of the tool can be adjusted.

[0060] When the present application is used, a plurality of tools are respectively inserted into a plurality of installation openings, and the anti-skid pad 14 is abutted on the tool, at this time, the second spring 15 is compressed and pushed by the rebounding force of itself to make the abutment plate 4 preliminarily clamp and limit the tool;

[0061] When the installation height of the tool needs to be adjusted, the second threaded rod 11-4 can be rotated, so that the sliding block 11-2 slides in the sliding groove, and drives the supporting block 9 to move forward and backward in the installation opening through the guide column 11-3, and under the guiding effect of the guide strip 11-1, the supporting block 9 can also move up and down, so as to change the installation height of the tool;

[0062] After the installation height adjustment of the tool is completed, the motor 8-4 is started, the motor 8-4 drives the plurality of worms 8-3 to rotate through the synchronous rod 8-2 and the second guide rod 10-1, the worms 8-3 drive the worms 8-6 to rotate through the meshing of the worms 8-3 and the worms 8-6, the worms 8-6 drive the first threaded rod 3 to rotate through the first guide rod 8-7, the first threaded rod 3 can drive the lifting rod 6 and the limiting plate 7 to move downward through the first spring 5, after a limiting plate 7 is in contact with the tool, the corresponding first threaded rod 3 continues to move downward while rotating, the lifting rod 6 moves to the inside of the first threaded rod 3 and the first spring 5, when the limiting plate 7 is in contact with the first threaded rod 3, the tool can be completely clamped and fixed, at the same time, the lifting rod 6 triggers the control switch 10-4, the first electric push rod 10-2 is shortened and drives the stop block 10-3 to move upward, at this time, the stop block 10-3 corresponding to the tool is separated from the corresponding worm 8-3, then the synchronous rod 8-2 can continue to rotate, at this time, the worm 8-3 cannot drive the worm 8-6 to rotate and is changed to move to the right side, and the other worms 8-3 can continue to drive the corresponding worm 8-6 to rotate, until all the tools are completely clamped and fixed;

[0063] When it is necessary to disassemble the tool, the driving shaft of the motor 8-4 is reversely rotated, the motor 8-4 drives the plurality of worms 8-3 to reversely rotate through the synchronous rod 8-2 and the second guide rod 10-1, the worms 8-3 move to the left side, after the left end of the worm 8-3 is in contact with the side wall of the adjusting frame 8-1, the worm 8-6 is reversely rotated, the worm 8-6 drives the first threaded rod 3 to reversely rotate through the first guide rod 8-7, the first threaded rod 3 moves upward, the first spring 5 is elongated and reset, at the same time, the lifting rod 6 moves downward in the first threaded rod 3 and is separated from the control switch 10-4, the control switch 10-4 drives the first electric push rod 10-2 to drive the stop block 10-3 to move downward and is in contact with the right end of the worm 8-3, when all the limiting plates 7 are separated from the tool, the plurality of tools can be taken out for replacement.

[0064] Compared with the prior art, the beneficial effects of the specific embodiment are as follows:

[0065] 1. The synchronous adjusting mechanism 8 can realize synchronous control of the plurality of first threaded rods 3, and the cooperation of the contact plate 4, the first spring 5, the lifting rod 6, the limiting plate 7 and the second spring 15 can simultaneously limit and lock the plurality of installed tools, so that the quick replacement of the tool group is more convenient;

[0066] 2. The cooperation of the independent regulating mechanism 10 can independently control the movement of the plurality of worms 8-3, so that the phenomenon that the synchronous rod 8-2 cannot continue to rotate after a tool is fixed and locked and the remaining tools cannot be fixed and locked is avoided.

[0067] 3. By the cooperation of the height adjusting mechanism 11, the installation height of the tool can be adjusted by adjusting the height of the supporting block 9.

[0068] The above description is only to illustrate the technical solutions of the present application but not to limit the present application. Other modifications or equivalent replacements to the technical solutions of the present application made by those skilled in the art should be covered in the scope of claims of the present application as long as they do not depart from the spirit and scope of the present application.

Claims

1. A quick-change tool group for numerical control machine tool mounting tool holder, it contains fixed frame (1) and mounting frame (2), fixed frame (1) is provided with "U" structure, fixed frame (1) is provided with a plurality of mounting frames (2); characterized in that It also contains: A number of threaded rods (3) are respectively two two groups by thread rotation and are provided on a plurality of mounting frames (2), a mounting port in the mounting frame (2) is provided with a contact plate (4), the upper part of the contact plate (4) is fixedly provided with two first springs (5), the upper end of the first spring (5) is fixedly arranged in the groove provided on the top wall in the mounting port, the mounting frame (2) is provided with a height adjusting mechanism (11); Lifting rod (6), the lifting rod (6) is a plurality of, respectively, the lifting rod (6) is movably inserted into the first threaded rod (3), the lower end of the lifting rod (6) is fixedly arranged outside the first threaded rod (3) and is provided with a limiting plate (7), the limiting plate (7) is located in the mounting port, the fixed frame (1) is provided with a synchronous adjusting mechanism (8) matched with the first threaded rod (3), and the mounting port is movably provided with a supporting block (9); A plurality of second springs (15) are respectively fixedly arranged on the lifting rod (6), and the upper end of the second spring (15) is connected with the inner top wall of the first threaded rod (3); The synchronous adjusting mechanism (8) contains: Adjusting frame (8-1), the adjusting frame (8-1) is two, and is fixedly arranged on the fixed frame (1), the adjusting frame (8-1) is rotatably arranged with a synchronous rod (8-2) through a bearing, the synchronous rod (8-2) is provided with a plurality of worms (8-3), the left side wall of the adjusting frame (8-1) is fixedly provided with a motor (8-4), the output end of the motor (8-4) is connected with the synchronous rod (8-2), and the adjusting frame (8-1) is provided with an independent control mechanism (10) matched with the worm (8-3); A plurality of fixed blocks (8-5) are respectively arranged in a group on a plurality of mounting frames (2), the upper end of the first threaded rod (3) is movably arranged in the mounting frame (2), the worm (8-6) is movably arranged in the fixed block (8-5), and the rear side of the worm (8-6) is exposed from the fixed block (8-5) and is arranged in mesh with the worm (8-3); A plurality of first guide rods (8-7) are movably inserted into the outer ring wall of the first threaded rod (3) at equal angles, and the first guide rod (8-7) is fixedly arranged on the worm (8-6); The independent control mechanism (10) contains: A plurality of second guide rods (10-1) are movably arranged on the worm (8-3) at equal angles, and the second guide rod (10-1) is fixedly arranged on the synchronous rod (8-2) The first electric push rod (10-2) is fixedly arranged in the adjusting frame (8-1), and the output end of the first electric push rod (10-2) is fixedly provided with a stop block (10-3) which is movably arranged at the right end of the worm (8-3); The control switch (10-4) is fixedly arranged in the first threaded rod (3), and the control switch (10-4) is electrically connected with the first electric push rod (10-2) and is movably arranged at the upper end of the lifting rod (6); The height adjusting mechanism (11) comprises: The guide bars (11-1) are two and are fixedly arranged on the two side walls of the mounting port, and the guide bars (11-1) are movably arranged in the guide grooves formed in the side walls of the supporting block (9), and the guide bars (11-1) are inclined upward at the rear ends; The sliding block (11-2) is slidably arranged in the sliding groove formed in the bottom wall of the mounting port, and the upper part of the sliding block (11-2) is fixedly provided with two guide columns (11-3) which are movably inserted into the cylindrical grooves formed in the lower part of the supporting block (9); The second threaded rod (11-4) is rotatably connected to the mounting block through a bearing, and the second threaded rod (11-4) is rotatably connected to the sliding block (11-2) through a thread.

2. The tool holder according to claim 1, characterized in that: A plurality of second electric push rods (12) are fixedly arranged on the upper part of the fixed frame (1), and the output ends of the second electric push rods (12) are fixedly connected with the mounting frame (2).

3. The tool holder according to claim 2, characterized in that: The guiding support rod (13) is movably arranged on the fixed frame (1).

4. The tool holder according to claim 1, characterized in that: The anti-skid pad (14) is fixedly arranged on the lower side wall of the abutting plate (4).

5. The tool holder according to claim 1, characterized in that: The front side of the lower side wall of the abutting plate (4) is provided with a front side upwardly inclined chamfer.

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