CN114952371A - Rotating tool apron with retractable and replaceable tool - Google Patents

Abstract

The invention discloses a rotary tool apron with a retractable and replaceable tool, which belongs to the technical field of parts of numerical control machines and comprises a rotary seat, wherein the bottom surface of the rotary seat is fixedly connected with a tool seat, a plurality of placing cavities are formed in the rotary seat, a steering mechanism is movably connected in the placing cavities, the steering mechanism comprises a lifting seat in sliding connection with the placing cavities, a rotary block is rotatably connected in the lifting seat, the rotary block is fixedly connected with a clamping mechanism through a connecting rod, tools are connected in the clamping mechanism, one tool is in inserting fit with the tool seat, the rest tools are arranged in the placing cavities, and the top surface of the rotary seat is connected with a limiting mechanism. According to the tool storage device, the lifting seat is driven to slide downwards, the connecting rod is rotated to enable the ejector rod in the rotating block to be abutted against the groove on the inner upper side of the lifting seat, so that the tool can be driven to rotate into the storage cavity, the tool is stored and protected through the storage cavity, the protection performance is good, the operation is simple, and the use is convenient.

Description

A rotary tool holder with retractable and replaceable tools

technical field

The invention relates to the technical field of numerical control machine tool parts, and more particularly, to a rotary tool holder with a retractable and replaceable tool.

Background technique

The CNC machine tool turns the workpiece through the rotation of the tool installed on the tool holder. When the workpiece is clamped on the CNC machine tool, the tool is exposed along with the equipment, which is easy to cause damage to the tool and workers. The prior art publication number is CN111730372A The patent document provides a CNC machine tool with retractable tools. The device drives the lateral mounting frame to rotate on the lower end face of the fixed support plate through the connection of the turret, so that the tool holder can drive the tool to rotate to the highest point. At this time, through the two A fixed side guard can protect the tool holder and the tool to avoid the collision of the tool when the workpiece is clamped.

Although the device has many beneficial effects, the following problems still exist: the protection of the tool is relatively simple, and the tool is easy to shake through the connection of the turret when rotating at high speed, which affects the processing quality of the workpiece or even damages the tool, and has poor stability. In addition, in the patented technologies such as CN209578941U, CN215999554U, etc., although the tool can be retracted and the tool can be stabilized in one place, the tool is limited to one position, and the working position cannot be adjusted. In view of this, we propose a rotary tool holder with retractable tool replacement.

SUMMARY OF THE INVENTION

1. Technical problems to be solved

The purpose of the present invention is to provide a retractable and replaceable rotary cutter seat, which can stably accommodate unused cutters, and improve the stability of the rotary seat during rotation through a counterweight plate, so as to solve the above-mentioned problems in the background art.

2. Technical solutions

A rotary cutter seat with a retractable and replaceable tool, comprising a rotary seat, a bottom surface of the rotary seat is connected and fixed with a cutter seat, a plurality of placement cavities are opened on the rotary seat, and a steering mechanism is movably connected in the placement cavity, so The steering mechanism includes a lift seat slidably connected to the placement cavity, a rotating block is rotatably connected in the lifting seat, a clamping mechanism is connected and fixed to the rotating block through a connecting rod, and a tool is connected in the clamping mechanism, one of which is The knives are inserted and matched with the knives seat, and the rest of the knives are arranged in the placement cavity. The top surface of the rotating seat is connected with a limiting mechanism, and the limiting mechanism includes a lifting, sliding and rotating relative to the top surface of the rotating seat. A connecting ring, the outer wall of the connecting ring is connected and fixed with a plurality of limit plates, and the outer wall of the connecting ring is also rotatably connected with a counterweight plate.

Preferably, the lift seat is slidably connected to the chute provided on the placement cavity, and the inner side of the lift seat is connected to the placement cavity through a spring A.

Preferably, two top rods are slidably connected in the rotating block, and the two top rods are connected by a spring B, the upper and lower ends of the inner wall of the lifting seat are provided with a plurality of grooves, and the ends of the top rods are Fitted with the groove.

Preferably, the clamping mechanism includes two clamping plates A, the outer sides of the clamping plates A are provided with clamping plates B, and bolts are passed between the two clamping plates A and between the two clamping plates B. Nuts are connected, two of the clamping plates A are in close contact with the tool, and one of the clamping plates B is connected with the connecting rod.

Preferably, a rotation groove is fixedly connected to the outer wall of the clamping plate A, and a plurality of balls are rollingly connected to the inner wall of the clamping plate B, and the balls are in rolling contact with the rotation groove.

Preferably, the limiting mechanism includes a threaded ring that is connected and fixed with the rotating seat, a rotating ring is threadedly connected to the threaded ring, a hand wheel is connected and fixed on the outside of the rotating ring, and a connecting ring is rotatably connected to the bottom surface of the rotating ring .

Preferably, the inner diameter of the connecting ring is larger than the outer diameter of the threaded ring.

Preferably, the limiting plate abuts against and cooperates with a tool provided in the placement cavity.

Preferably, at least one side of the counterweight plate is fixedly connected with a plurality of clamping blocks, the inner wall of the placement cavity is provided with clamping grooves adapted to the clamping blocks, and the clamping blocks are slidably matched with the clamping grooves.

Preferably, the card slot has an L-shaped structure.

3. Beneficial effects

Compared with the prior art, the advantages of the present invention are:

1. The present invention drives the lifting seat to slide downward, and rotates the connecting rod to make the ejector rod in the rotating block abut with the groove on the upper side of the lifting seat, so as to drive the tool to rotate into the placement cavity, and the tool is carried out through the placement cavity. Storage protection, good protection, and simple operation, easy to use.

2. The present invention connects different tools through a plurality of clamping mechanisms, and the steering mechanism can drive the tools to be inserted into the tool seat, so that different tools can be quickly cut, and the processing efficiency of the workpiece is improved. At the same time, the spring A pulls the lifting seat to rise , which makes the connection between the tool and the tool holder stable and improves the stability during clamping.

3. The present invention drives the rotating ring to descend by rotating the handwheel, so that the limit plate will go down to the upper part of the placement cavity, and the limit plate will limit the position of the tool in the placement cavity, which can prevent the centrifugal force generated by the rotating seat from driving the tool. Shake, further improve the protection of the knife.

4. In the present invention, the counterweight plate is arranged in the placement cavity without the tool, and after the clamping block is engaged with the clamping groove, the weight of the outer circumference of the rotating seat is evenly distributed, and the stability of the rotating seat is improved during rotation. Improve the quality of workpiece processing.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

FIG. 2 is a schematic view of the disassembly of the limiting mechanism, the rotating seat and the cutter structure of the present invention;

Fig. 3 is the anatomical schematic diagram of the rotating seat structure of the present invention;

FIG. 4 is a schematic diagram of the structural cooperation of the cutter and the limit plate according to the present invention;

5 is a schematic diagram of the disassembly of the steering mechanism of the present invention;

6 is a schematic diagram of the disassembly of the clamping mechanism of the present invention;

Fig. 7 is the disassembled schematic diagram of the limiting mechanism of the present invention;

Description of the symbols in the figure: 1. CNC machine tool; 2. Rotary shaft; 3. Rotary seat; 4. Tool seat; 5. Placement cavity; 501, Chute; , rotating block; 603, spring A; 604, ejector rod; 605, spring B; 606, groove; 7, connecting rod; 8, clamping mechanism; 801, clamping plate A; 802, clamping plate B; 803 , rotating groove; 804, ball; 9, tool; 10, limit mechanism; 1001, threaded ring; 1002, rotating ring; 1003, hand wheel; 1004, connecting ring; 1005, limit plate; 1006, counterweight plate; 1007, card block.

Detailed ways

Please refer to Figures 1-7, the present invention provides a technical solution:

A rotating tool holder with retractable and replaceable tools includes a rotating base 3. As shown in Figure 1, the rotating base 3 is connected to a CNC machine tool 1 through a rotating shaft 2, and a tool base 4 is connected and fixed on the bottom surface of the rotating base 3. A plurality of placing cavities 5 are evenly opened, and a steering mechanism 6 is movably connected in the placing cavity 5. The steering mechanism 6 includes a lifting seat 601 slidably connected with the placing cavity 5, and a rotating block 602 is rotatably connected in the lifting seat 601, and the rotating block 602 passes through The connecting rod 7 is connected and fixed with a clamping mechanism 8 , a tool 9 is connected in the clamping mechanism 8 , and a limiting mechanism 10 is connected to the top surface of the rotating base 3 .

In this technical solution, tools 9 can be placed in multiple placement cavities 5, so that the tool holder 4 can be connected with different tools 9 to perform complex processing on the workpiece, and the lifting seat 601 is driven to descend, so that the connection between the tool 9 and the tool holder 4 is cancelled. , through the rotation of the rotating block 602 and the lifting seat 601, the tool 9 can be driven to rotate into the placement cavity 5, and the limiting mechanism 10 can improve the protection of the tool 9 in the placement cavity 5 and the stability of the rotating seat 3.

Specifically, as shown in FIGS. 4 and 5 , the lift seat 601 is slidably connected to the chute 501 provided on the placement cavity 5 , and the inner side of the lift seat 601 is connected to the placement cavity 5 through a spring A603 .

In this technical solution, when the lift seat 601 is at the lower part of the chute 501, it can drive the connected tool 9 to separate from the tool seat 4. After the spring A603 contracts, it drives the lift seat 601 to rise to the upper part of the chute 501, and the tool 9 and the tool seat are increased. 4 The stability of the connection.

Further, as shown in FIG. 5 , two ejector rods 604 are slidably connected in the rotating block 602, and the two ejector rods 604 are connected by a spring B605. The upper and lower ends of the inner wall of the lift seat 601 are provided with a plurality of grooves 606. The end of the rod 604 abuts against the groove 606 .

In this technical solution, when the spring B605 drives the ejector rod 604 to abut the groove 606, the rotating block 602 is stably connected to the lifting seat 601. When the external force in the rotating direction of the rotating block 602 is greater than the elastic force of the spring B605, the spring B605 drives the ejector The rod 604 is retracted so that the rotation block 602 can be rotated.

Further, as shown in FIG. 6 , the clamping mechanism 8 includes two clamping plates A801, and a clamping plate B802 is provided on the outer side of the clamping plate A801, between the two clamping plates A801 and between the two clamping plates B802. They are all connected by bolts and nuts, the two clamping plates A801 are closely attached to the cutter 9, and one of the clamping plates B802 is connected to the connecting rod 7.

In this technical solution, the two clamping plates A801 cooperate to clamp the tool 9 , and at the same time, the two clamping plates A801 can rotate within the two clamping plates B802 to facilitate the connection between the tool 9 and the tool seat 4 .

Further, a rotation groove 803 is fixedly connected to the outer wall of the clamping plate A801 , and a plurality of balls 804 are rollingly connected to the inner wall of the clamping plate B802 , and the balls 804 are in rolling contact with the rotation groove 803 .

In this technical solution, the ball 804 cooperates with the rotating groove 803 to make the tool 9 rotate more smoothly and reduce the wear of the clamping mechanism 8 .

Furthermore, one of the cutters 9 is inserted into the cutter seat 4 , and the rest of the cutters 9 are arranged in the placement cavity 5 .

In this technical solution, multiple cutters 9 are provided, which can quickly switch cutters of different styles, save time for changing cutters 9, and improve the machining efficiency of the workpiece.

Further, as shown in FIG. 7 , the limiting mechanism 10 includes a threaded ring 1001 that is fixedly connected to the rotating base 3 , a rotating ring 1002 is threadedly connected to the threaded ring 1001 , and a handwheel 1003 is connected and fixed to the outside of the rotating ring 1002 . A connecting ring 1004 is rotatably connected to the bottom surface of the connecting ring 1002 , a plurality of limit plates 1005 are evenly connected and fixed on the outer wall of the connecting ring 1004 , and a counterweight plate 1006 is also rotatably connected to the outer wall of the connecting ring 1004 .

In this technical solution, rotating the handwheel 1003 can drive the rotating ring 1002 to move up and down on the threaded ring 1001, so as to drive the limit plate 1005 and the counterweight plate 1006 on the connecting ring 1004 to move, and the connecting ring 1004 can be relative to the rotating ring 1002 is rotated, so that the counterweight plate 1006 can be rotated to the placement cavity 5 corresponding to the used tool, so as to make up for the lack of weight after the tool 9 is unscrewed and used, so that the weight distribution of the rotating tool seat tends to be uniform, and the stability of rotation is ensured. .

Furthermore, the inner diameter of the connecting ring 1004 is larger than the outer diameter of the threaded ring 1001 .

In this technical solution, the connecting ring 1004 is not directly connected with the threaded ring 1001 , and the connecting ring 1004 is driven to move synchronously by the lifting and lowering of the rotating ring 1002 .

Further, the limiting plate 1005 abuts against and cooperates with the cutter 9 disposed in the placement cavity 5 .

In this technical solution, when the connecting ring 1004 descends, it drives the limiting plate 1005 to descend into the upper end of the placement cavity 5, and the limiting plate 1005 can limit the position of the cutter 9 to prevent the cutter 9 from shaking and improve protection.

In addition, referring to FIG. 3 and FIG. 7 , both sides of the counterweight plate 1006 are fixedly connected with a plurality of clamping blocks 1007 , and the inner wall of the placement cavity 5 is provided with a clamping slot 502 adapted to the clamping blocks 1007 . 1007 is slidingly matched with the card slot 502, and the card slot 502 has an L-shaped structure.

In this technical solution, the counterweight plate 1006 is clamped with the placement cavity 5 without the tool 9, so that the peripheral weight of the rotating base 3 is evenly distributed, ensuring the rotating base 3 to maintain stability during rotation, and improving the quality of workpiece processing.

The rotary tool holder for the retractable and replaceable tool described in this application document, when the required workpiece needs to be placed on the CNC machine tool 1, the rotating handwheel 1003 drives the limit plate 1005 and the counterweight plate 1006 on the connecting ring 1004 to rise, pull down and The tool 9 connected to the tool holder 4 makes the tool 9 disengage from the tool holder 4. At this time, the lifting seat 601 descends in the chute 501, and the tool 9 is rotated. The tool 9 drives the rotating block 602 to rotate. After the abutment of the groove 606 is canceled, it abuts against the groove 606 on the upper side, so that the current tool 9 is rotated into the placement cavity 5, and the handwheel 1003 is reversely rotated to make the connecting ring 1004 descend, and the limit plate 1005 is opposite to the placement cavity 5. The inner tool 9 is limited, and then the required workpiece can be placed on the CNC machine tool 1, which can avoid the collision of the tool 9 and the damage to the tool 9 when the workpiece is placed and installed. better protection.

When machining the workpiece, the required tool 9 is rotated out of the placement cavity 5 and clamped with the tool holder 4. The spring A603 shrinks to drive the lift seat 601 to rise, so that the drive tool 9 is connected to the tool holder 4 stably, and the counterweight plate 1006 The clamping block 1007 is clamped with the clamping slot 502 , so that the weight of the rotating base 3 is evenly distributed, and the rotating base 4 is ensured to rotate stably.

Claims (10)

1. The utility model provides a rotation blade holder of collapsible change of cutter, includes and rotates the seat, its characterized in that: the bottom surface of the rotating seat is fixedly connected with a cutter seat, a plurality of placing cavities are arranged on the rotating seat, steering mechanisms are movably connected in the placing cavities,

the steering mechanism comprises a lifting seat which is connected with the placing cavity in a sliding way, a rotating block is connected in the lifting seat in a rotating way,

the rotating block is fixedly connected with a clamping mechanism through a connecting rod,

cutters are connected in the clamping mechanism, one of the cutters is matched with the cutter seat in an inserting way, the other cutters are arranged in the placing cavity,

rotate the seat top surface and be connected with stop gear, stop gear is including rotating seat top surface lift slip and pivoted go-between relatively, go-between outer wall connection is fixed with a plurality of limiting plates, just the go-between outer wall still rotates and is connected with the weight plate.

2. A tool-retractable rotary holder according to claim 1, wherein: the lifting seat is connected with a sliding groove formed in the placing cavity in a sliding mode, and the inner side of the lifting seat is connected with the placing cavity through a spring A.

3. A tool-retractable rotary holder according to claim 1, wherein: two ejector rods are connected in the rotating block in a sliding manner and are connected through a spring B;

a plurality of grooves are formed in the upper end and the lower end of the inner wall of the lifting seat, and the end part of the ejector rod is in butt fit with the grooves.

4. A tool-retractable rotary holder according to claim 1, wherein: the clamping mechanism comprises two clamping plates A, a clamping plate B is arranged on the outer side of each clamping plate A, and the two clamping plates A and the two clamping plates B are connected through bolts and nuts;

the two clamping plates A are tightly attached to the cutter, and one clamping plate B is connected with the connecting rod.

5. The cutting tool retractable rotary holder of claim 4, wherein: the outer wall of the clamping plate A is fixedly connected with a rotating groove, the inner wall of the clamping plate B is connected with a plurality of balls in a rolling mode, and the balls are in rolling contact with the rotating groove.

6. A tool-retractable rotary holder according to claim 1, wherein: the limiting mechanism comprises a threaded ring fixedly connected with the rotating seat, a rotating ring is connected to the threaded ring in a threaded mode, a hand wheel is fixedly connected to the outer side of the rotating ring in a connected mode, and a connecting ring is rotatably connected to the bottom face of the rotating ring.

7. The cutting tool retractable rotary holder of claim 6, wherein: the inner diameter of the connecting ring is larger than the outer diameter of the threaded ring.

8. The cutting tool retractable rotary holder of claim 1, wherein: the limiting plate is matched with a cutter arranged in the placing cavity in an abutting mode.

9. A tool-retractable rotary holder according to claim 1, wherein: the weight plate is characterized in that a plurality of clamping blocks are fixedly connected to at least one side of the weight plate, clamping grooves matched with the clamping blocks are formed in the inner wall of the placing cavity, and the clamping blocks are in sliding fit with the clamping grooves.

10. A tool-retractable rotary holder according to claim 9, wherein: the clamping groove is of an L-shaped structure.

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