CN221754746U - A cutter holder for CNC lathe - Google Patents

Abstract

The utility model relates to the technical field of numerical control machine tools and discloses a cutter holder for a numerical control lathe, which comprises a back plate, wherein a guide block and a fixed plate are fixedly connected to the side surface of the back plate, circular arc-shaped grooves are formed in the two near sides of a first sliding plate and a second sliding plate, a locking mechanism is arranged in each circular arc-shaped groove, gears are connected to the similar sides of the first rack plate and the second rack plate in a meshed mode, a rotating rod is fixedly connected to one side of each gear, and one side of a motor is fixedly connected to one side of the fixed plate. According to the utility model, the bottom ends of the cutters are inserted into the arc-shaped grooves of the first sliding plate and the second sliding plate, the cutters are fixed by applying pressure to the cutters through the locking mechanism, and then the rotating rod drives the gear to rotate through the driving motor, so that the first rack and the second rack move reversely, the first sliding plate and the second sliding plate are driven to clamp and fix the cutters, and displacement or vibration generated in the high-speed rotation and cutting process is avoided.

Description

A cutter holder for CNC lathe

Technical Field

The utility model relates to the technical field of numerically controlled machine tools, in particular to a cutter clamp for a numerically controlled lathe.

Background Art

A CNC lathe is a machine tool used to process workpieces. It controls the movement and processing of the tool through a computer numerical control system. It can automatically perform various cutting and processing operations according to pre-programmed instructions, including turning, boring, drilling, etc. A cutter is a tool used to cut, cut, score or turn materials. A tool holder is a device or fixture used to clamp the cutting tool. The main purpose of the tool holder is to firmly fix the cutting tool on the machine tool to ensure the stability and accuracy of the tool during the cutting process.

After searching the Chinese patent document with the announcement number CN207681510U, a cutter clamp for a CNC lathe is provided, which is characterized in that it includes: an adjustable cutter clamp, a blade clamp, a clamping screw, a stop screw, a machine tool mounting screw, a cutter seat, a T-nut, and a fastening screw. The adjustable cutter clamp and the cutter seat are both installed by shaft matching. The adjustable cutter clamp can rotate 360° around the cutter seat. The adjustable cutter clamp is provided with an oblique wedge groove for installing the blade. The utility model can install the blade quickly and reliably, the tool adjustment time is short, the blade height adjustment is convenient and fast, the work efficiency is high, and the application range is wide. It is mainly used for the cutting processing of parts of CNC lathes, especially for the processing of various external circular grooves and parts cutting of small parts, high strength and rigidity, high toughness, and complex shapes.

However, in this patent, the tool holder does not have sufficient clamping effect on the tool, and displacement or vibration may occur during high-speed rotation and cutting, which directly affects the accuracy and surface quality of the machining process. In addition, tool replacement is relatively complicated and the tool replacement efficiency is not high.

Utility Model Content

In order to make up for the above shortcomings, the utility model provides a cutter clamp for a CNC lathe, aiming to improve the problems in the prior art that the clamp has insufficient clamping effect on the tool and the tool replacement efficiency is low.

In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a cutting knife clamp for a CNC lathe, comprising a back plate, a guide block and a fixed plate are fixedly connected to the side surface of the back plate, a sliding plate 1 and a sliding plate 2 are slidably connected to the outer side of the guide block, a clamp 1 and a clamp 2 are fixedly connected to the sides of the sliding plate 1 and the sliding plate 2 respectively, arc-shaped grooves are opened on the adjacent sides of the sliding plate 1 and the sliding plate 2, a locking mechanism is arranged in the arc-shaped groove, a rack plate 1 and a rack plate 2 are fixedly connected to one side of the sliding plate 1 and the sliding plate 2 respectively, a gear is meshedly connected to the adjacent sides of the rack plate 1 and the rack plate 2, a rotating rod is fixedly connected to one side of the gear, one end of the rotating rod is fixedly connected to the output end of the motor, and one side of the motor is fixedly connected to one side of the fixed plate.

Through the above technical solution, the bottom end of the cutter is inserted into the arc-shaped groove of the sliding plate 1 and the sliding plate 2, so that the locking mechanism fixes the cutter, and the motor is driven to drive the gear to rotate, thereby causing the rack 1 and the rack 2 to move in the opposite direction, thereby driving the sliding plate 1 and the sliding plate 2 to clamp and fix the cutter, thereby avoiding displacement or vibration during high-speed rotation and cutting.

As a further description of the above technical solution:

The locking mechanism includes an outer cylinder and a slide bar, wherein the outer diameter of the slide bar is slidably connected to the inner diameter of the outer cylinder, and a spring is arranged inside the outer cylinder. The slide bar is pressed by the cutter, so that the slide bar presses the spring and then slides inside the outer cylinder, so that the spring applies a reaction force to the slide bar, and the slide bar presses the cutter to fix it.

As a further description of the above technical solution:

One end of the spring is fixedly connected to the inner bottom surface of the outer cylinder, and the other end is fixedly connected to one end of the slide bar. The spring allows the slide bar to slide smoothly in and out of the inner part of the outer cylinder, thereby facilitating the insertion and removal of the cutter.

As a further description of the above technical solution:

There are four locking mechanisms, and the bottom ends of each of the two outer cylinders are fixedly connected to the arc-shaped grooves of the sliding plate 1 and the sliding plate 2, respectively, and the outer ends of the sliding rods are configured to be hemispherical. The design that one end of each of the four locking mechanisms faces the center of the arc-shaped groove further enhances the fixing effect on the cutter.

As a further description of the above technical solution:

The top of the rack plate 1 is fixedly connected to the limiting plate 1, and the top of the rack plate 2 is fixedly connected to the limiting plate 2. The limiting plate 1 and the limiting plate 2 limit the rack plate 1 and the rack plate 2 respectively, and are placed in the process of gear rotation to make the rack 1 and the rack 2 fall off and separate.

As a further description of the above technical solution:

There are four guide blocks, two of which are fixedly connected to the upper part of one side of the back plate, and the other two are fixedly connected to the lower part of one side of the back plate. The left and right sides of the sliding plate 1 and the sliding plate 2 are slidably connected with guide blocks, so that the sliding plate 1 and the sliding plate 2 slide towards or away from each other on one side of the back plate, thereby clamping or releasing the cutter.

As a further description of the above technical solution:

The backs of the sliding plate 1 and the sliding plate 2 are both provided with two chute grooves, and the inner sides of the chute grooves are slidably connected to the outer sides of the guide blocks. Through the guide blocks, the sliding plate 1 and the sliding plate 2 are made to slide along a straight line on one side of the back plate.

As a further description of the above technical solution:

The back plate and the fixing plate are provided with mounting threaded holes on one side, and the mounting threaded holes are aligned with the hole positions on the numerical control lathe, so that the tool holder is integrally fixed and connected to the lathe by bolts.

The utility model has the following beneficial effects:

1. In the utility model, the bottom end of the cutter is inserted into the arc-shaped groove of the sliding plate 1 and the sliding plate 2, and pressure is applied to fix it through the locking mechanism, and then the motor is driven to drive the gear to rotate, thereby making the rack 1 and the rack 2 move in the opposite direction, thereby driving the sliding plate 1 and the sliding plate 2 to clamp and fix the cutter, thereby avoiding displacement or vibration during high-speed rotation and cutting.

2. In the utility model, the motor is driven to drive the rotating rod to rotate, thereby moving the rack 1 and the rack 2, so that the sliding plate 1 and the sliding plate 2 are away from the tool, and the tool is directly pulled out from the arc-shaped groove, and other tools are placed and fixed, thereby improving the efficiency of tool replacement.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the three-dimensional structure of a cutter holder for a CNC lathe proposed by the utility model;

FIG2 is a schematic diagram of the structure of the gear portion of a cutter holder for a CNC lathe according to the present invention;

FIG3 is a schematic diagram of the clamping state structure of the clamp 1 and the clamp 2 of a cutter clamp for a CNC lathe proposed by the utility model;

FIG. 4 is a schematic diagram of the internal structure of a locking mechanism of a cutter clamp for a CNC lathe proposed by the present invention.

Legend:

1. Back plate; 2. Sliding plate 1; 3. Sliding plate 2; 4. Clamp 1; 5. Clamp 2; 6. Guide block; 7. Locking mechanism; 71. Outer cylinder; 72. Sliding rod; 73. Spring; 8. Fixed plate; 9. Mounting threaded hole; 10. Motor; 11. Turnbar; 12. Gear; 13. Rack plate 1; 14. Rack plate 2; 15. Limit plate 1; 16. Limit plate 2.

DETAILED DESCRIPTION

The following will be combined with the drawings in the specification of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

1-4, an embodiment of the utility model is provided: a cutter clamp for a CNC lathe, comprising a back plate 1, a guide block 6 and a fixed plate 8 are fixedly connected to the side of the back plate 1, a sliding plate 2 and a sliding plate 3 are slidably connected to the outer side of the guide block 6, a clamp 4 and a clamp 5 are fixedly connected to the sides of the sliding plate 12 and the sliding plate 23 respectively, arc-shaped grooves are opened on the adjacent sides of the sliding plate 12 and the sliding plate 23, a locking mechanism 7 is arranged in the arc-shaped groove, a rack plate 13 and a rack plate 14 are fixedly connected to one side of the sliding plate 12 and the sliding plate 23 respectively, a gear 12 is meshedly connected to the adjacent sides of the rack plate 13 and the rack plate 24, a rotating rod 11 is fixedly connected to one side of the gear 12, one end of the rotating rod 11 is fixedly connected to the output end of the motor 10, and one side of the motor 10 is fixedly connected to one side of the fixed plate 8.

The bottom end of the cutter is inserted into the arc-shaped groove of the sliding plate 1 2 and the sliding plate 2 3, so that the locking mechanism 7 fixes the cutter. By driving the motor 10, the rotating rod 11 drives the gear 12 to rotate, thereby causing the rack 1 and the rack 2 to move in the opposite direction, thereby driving the sliding plate 1 2 and the sliding plate 2 3 to clamp and fix the cutter, thereby avoiding displacement or vibration during high-speed rotation and cutting.

The locking mechanism 7 includes an outer cylinder 71 and a sliding rod 72 . The outer diameter of the sliding rod 72 is slidably connected to the inner diameter of the outer cylinder 71 . A spring 73 is arranged inside the outer cylinder 71 .

The cutter presses the slide bar 72, so that the slide bar 72 presses the spring 73 and then slides inside the outer tube 71, so that the spring 73 applies a reaction force to the slide bar 72, and the slide bar 72 presses the cutter to fix it.

One end of the spring 73 is fixedly connected to the inner bottom surface of the outer cylinder 71 , and the other end of the spring 73 is fixedly connected to one end of the sliding rod 72 .

The spring 73 allows the slide bar 72 to slide smoothly in and out of the outer cylinder 71, thereby facilitating the insertion and removal of the cutter.

There are four locking mechanisms 7, and the bottom ends of every two outer cylinders 71 are fixedly connected to the arc-shaped grooves of the sliding plate 1 2 and the sliding plate 2 3 respectively, and the outer end of the sliding rod 72 is set to be hemispherical.

The design that one end of each of the four locking mechanisms 7 faces the center of the arc-shaped groove further enhances the fixing effect on the cutter.

The top end of the rack plate 1 13 is fixedly connected to the limiting plate 1 15 , and the top end of the rack plate 2 14 is fixedly connected to the limiting plate 2 16 .

The limiting plate 15 and the limiting plate 2 16 respectively limit the rack plate 13 and the rack plate 2 14, and are placed in the process of the gear 12 rotating so that the rack 1 and the rack 2 fall off and separate.

Four guide blocks 6 are provided, two of which are fixedly connected to the upper part of one side of the back plate 1 , and the other two guide blocks 6 are fixedly connected to the lower part of one side of the back plate 1 .

The left and right sides of the sliding plates 1 2 and 2 3 are slidably connected with guide blocks 6, so that the sliding plates 1 2 and 2 3 slide towards or away from each other on one side of the back plate 1, thereby clamping or releasing the cutter.

The backs of the sliding plate 1 2 and the sliding plate 2 3 are both provided with two sliding grooves, and the inner sides of the sliding grooves are slidably connected to the outer sides of the guide blocks 6 .

The guide block 6 allows the sliding plate 1 2 and the sliding plate 2 3 to slide along a straight line on one side of the back plate 1 .

Mounting threaded holes 9 are provided on one side of the back plate 1 and the fixing plate 8 at the top and bottom.

By aligning the mounting threaded hole 9 with the hole position on the CNC lathe, the tool holder is integrally fixedly connected to the lathe by bolts.

Working principle: When in use, the user aligns the mounting threaded hole 9 with the hole position on the CNC lathe, fixes the tool clamp as a whole to the lathe with bolts, and inserts the bottom end of the cutter into the arc-shaped groove of the sliding plate 1 2 and the sliding plate 2 3, thereby driving the sliding rod 72 to press the spring 73 and slide inside the outer cylinder 71. The four locking mechanisms 7 fix the cutter through the rebound of the spring 73, and the motor 10 drives the rotating rod 11 to rotate, thereby driving the rotating rod 11 to rotate the gear 12, and through the meshing action, the rack 1 and the rack 2 move in the opposite direction, thereby driving the sliding plate 1 2 and the sliding plate 2 3 to slide, thereby clamping and fixing the cutter, and cooperating with each other to avoid displacement or vibration during high-speed rotation and cutting. When the cutter model needs to be changed or a new cutter needs to be replaced, the motor 10 is driven to make the sliding plate 1 2 and the sliding plate 2 3 slide on the outside of the guide block 6 and move away from each other, loosen the cutter, directly pull the cutter out of the arc-shaped groove, put in other cutters, and then fix them, thereby improving the efficiency of tool replacement.

Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. The cutter holder for the numerical control lathe comprises a back plate (1), and is characterized in that: the side fixedly connected with guide block (6) and fixed plate (8) of backplate (1), the outside sliding connection of guide block (6) has first (2) of sliding plate, second (3) of sliding plate, the side of first (2) of sliding plate, second (3) of sliding plate is fixedly connected with anchor clamps (4) respectively, second (5) of anchor clamps, circular arc-shaped grooving has all been seted up to the side of first (2) of sliding plate, second (3) of sliding plate looks near side, circular arc-shaped is grooved and is provided with locking mechanical system (7), one side of first (2) of sliding plate, second (3) of sliding plate is fixedly connected with rack board (13), rack board second (14) respectively, the nearly side meshing of rack board first (13), rack board second (14) is connected with gear (12), one side fixedly connected with bull stick (11) of gear (12), one end fixed connection of bull stick (11) is at the output of motor (10), one side fixedly connected with in one side of fixed plate (8) of motor (10).

2. The cutter holder for a numerically controlled lathe according to claim 1, wherein: the locking mechanism (7) comprises an outer cylinder (71) and a sliding rod (72), wherein the outer diameter of the sliding rod (72) is connected with the inner diameter of the outer cylinder (71) in a sliding mode, and a spring (73) is arranged inside the outer cylinder (71).

3. A cutter holder for a numerically controlled lathe as set forth in claim 2, wherein: one end of the spring (73) is fixedly connected to the inner bottom surface of the outer cylinder (71), and the other end of the spring is fixedly connected to one end of the sliding rod (72).

4. A cutter holder for a numerically controlled lathe as set forth in claim 2, wherein: the locking mechanisms (7) are four, the bottom ends of every two outer cylinders (71) are respectively and fixedly connected to arc-shaped grooved positions of the first sliding plate (2) and the second sliding plate (3), and the outer ends of the sliding rods (72) are hemispherical.

5. The cutter holder for a numerically controlled lathe according to claim 1, wherein: the top of the first rack plate (13) is fixedly connected with a first limiting plate (15), and the top of the second rack plate (14) is fixedly connected with a second limiting plate (16).

6. The cutter holder for a numerically controlled lathe according to claim 1, wherein: the guide blocks (6) are four, two guide blocks (6) are fixedly connected to the upper portion of one side of the backboard (1) respectively, and the other two guide blocks (6) are fixedly connected to the lower portion of one side of the backboard (1) respectively.

7. The cutter holder for a numerically controlled lathe according to claim 1, wherein: two sliding grooves are formed in the back surfaces of the first sliding plate (2) and the second sliding plate (3), and the inner sides of the sliding grooves are connected to the outer sides of the guide blocks (6) in a sliding mode.

8. The cutter holder for a numerically controlled lathe according to claim 1, wherein: and mounting threaded holes (9) are formed in the upper part and the lower part of one side of the backboard (1) and one side of the fixing plate (8).