High-stability numerical control cutter

Abstract

The utility model relates to the technical field of numerical control tools, and discloses a high-stability numerical control tool which comprises a mounting plate mounted on a machine tool, a connecting shaft fixedly connected to the middle of the mounting plate and penetrating through the mounting plate, a tool fixedly connected to the bottom of the connecting shaft, an annular cover fixedly connected to the bottom of the mounting plate and arranged on the outer side of the connecting shaft in a sleeving mode, and a clamping groove is formed in the outer side of the annular cover. A positioning mechanism is arranged on the inner side of the connecting shaft and comprises two internal thread sleeves, the two internal thread sleeves are rotationally connected to the two ends of the annular cover correspondingly, the inner sides of the two internal thread sleeves are in threaded connection with screw rods penetrating through the internal thread sleeves correspondingly, and one ends of the two screw rods are fixedly connected with clamping plates used for clamping the connecting shaft correspondingly; the other ends of the two screw rods are fixedly connected with limiting blocks, and a manual part is arranged at the top end of the annular cover. According to the utility model, the connecting shaft can be fixed under the action of clamping force of the clamping plates at the same time, and the problem of deviation caused by asynchronous stress at one end of the connecting shaft is effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of CNC cutting tool technology, and more specifically, to a highly stable CNC cutting tool. Background Technology

[0002] CNC machine tools are short for numerical control machine tools. They are automated machine tools equipped with a program control system. This control system can logically process programs with control codes or other symbolic instructions, decode them, represent them with coded numbers, and input them into the CNC device through an information carrier. CNC machine tools sometimes need to be used in conjunction with cutting tools to process some parts, so the cutting tools need to have good stability.

[0003] A search revealed that Chinese Patent Publication No. CN219336009U discloses "a high-stability CNC cutting tool, comprising: an upper assembly, the upper assembly including a rotating shaft, a mounting plate fixedly connected to the bottom of the rotating shaft, a fixing block and a fixing rod fixedly connected to the bottom of the mounting plate, the fixing rod being located outside the fixing block, a ring cover, a fixing ring and a cutting tool being fixedly connected to the bottom of the fixing block, the fixing ring being located inside the ring cover, the cutting tool being fixedly connected to the inner surface of the fixing ring, a screw being movably connected to the middle of the ring cover, a knob and a second locking plate being fixedly connected to the outer end and inner end of the screw respectively, a rubber pad being fixedly connected to the end of the second locking plate, and a first fixing plate and a shrinking cover being fixedly connected to the outer surface and bottom of the ring cover respectively".

[0004] However, in the process of implementing the relevant technology, the above-mentioned patent has certain technical defects. In particular, when clamping the tool, the patent requires first rotating a knob to make one of the clamping plates contact the rotating shaft, and then rotating another knob to make the other clamping plate contact the rotating shaft and clamp it. This adjustment method makes it difficult to make the two clamping plates clamp the rotating shaft synchronously, which easily leads to the instability of the rotating shaft tilting, thereby affecting the normal operation of the tool. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, this utility model provides a highly stable CNC cutting tool, which solves the problem that the tool clamping in the existing technology is prone to tilting.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-stability CNC cutting tool, comprising a mounting plate mounted on a machine tool, a connecting shaft fixedly connected to the middle of the mounting plate, a cutting tool fixedly connected to the bottom of the connecting shaft, a ring cover fixedly connected to the bottom of the mounting plate, the ring cover being sleeved on the outside of the connecting shaft, a positioning mechanism provided on the inside of the connecting shaft, the positioning mechanism comprising two internal threaded sleeves, the two internal threaded sleeves being rotatably connected to the two ends of the ring cover respectively, a threaded rod threaded through the internal threaded sleeves being threaded to the inside of each of the two internal threaded sleeves, a clamping plate fixedly connected to one end of each of the two screws for clamping the connecting shaft, a limit plate fixedly connected to the other end of each of the two screws, and a manual component provided at the top of the ring cover for driving the two internal threaded sleeves to rotate synchronously in opposite directions.

[0007] As a preferred technical solution of this utility model, the bottom end of the limiting plate is fixedly connected to a guide rod arranged parallel to the screw. The guide rod passes through the side wall of the ring cover and is slidably connected to the ring cover. The end of the guide rod away from the limiting plate is fixedly connected to the clamping plate.

[0008] As a preferred embodiment of this utility model, both clamps are arc-shaped structures, and rubber pads are fixedly connected to the inner sides of both clamps.

[0009] As a preferred embodiment of this utility model, the two screws have the same thread direction and the same length.

[0010] As a preferred technical solution of this utility model, the manual component includes a rotating sleeve sleeved on the outside of the ring cover. The top end of the rotating sleeve is rotatably connected to the mounting plate. One end of each of the two internal threaded sleeves is fixedly connected to a bevel gear, and the bottom end of the rotating sleeve is fixedly connected to a bevel gear. Both bevel gears mesh with bevel gears.

[0011] As a preferred embodiment of this utility model, a plurality of handles are fixedly connected to the outer side of the rotating sleeve, and the plurality of handles are distributed at equal angles around the rotating sleeve.

[0012] As a preferred embodiment of this utility model, a fixing plate is fixedly connected to the bottom of the ring cover, a collar is fixedly connected to the bottom end of the connecting shaft, and a plurality of buffer members are arranged between the collar and the fixing plate, which are distributed at equal angles around the collar.

[0013] As a preferred embodiment of this utility model, the buffer component includes a sleeve, the top end of which is hinged to a fixed plate, a sleeve rod slidably connected to the bottom end of the sleeve, the bottom end of the sleeve rod being hinged to a collar, a friction block slidably connected to the inner side of the sleeve, the friction block being fixedly connected to the top of the sleeve rod, and a spring sleeved on the top end of the inner side of the sleeve, the top end of the spring abutting against the inner wall of the sleeve, and the bottom end of the spring abutting against the friction block.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: During installation, the two internal threaded sleeves are driven to rotate synchronously in opposite directions by a manual component. Since the two screws have the same helical direction, they can move synchronously towards each other, causing the two clamping plates to move towards the connecting shaft synchronously and clamp it synchronously. This allows the connecting shaft to be fixed by the clamping force of the clamping plates at the same time, effectively avoiding the problem of misalignment caused by asynchronous force on one end of the connecting shaft. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a high-stability CNC cutting tool according to the present invention;

[0016] Figure 2 This is a schematic diagram of the positioning mechanism of this utility model;

[0017] Figure 3 This is a structural schematic diagram of the manual component of this utility model;

[0018] Figure 4 This is a partial structural schematic diagram of the present invention;

[0019] Figure 5 This is a schematic diagram of the structure of the buffer component of this utility model.

[0020] In the diagram: 1. Mounting plate; 2. Connecting shaft; 3. Cutting tool; 4. Ring cover; 5. Positioning mechanism; 51. Internal threaded sleeve; 52. Screw; 53. Limiting plate; 54. Clamping plate; 55. Rubber pad; 56. Manual component; 561. Bevel gear one; 562. Rotating sleeve; 563. Bevel gear two; 564. Handle; 57. Guide rod; 6. Fixing plate; 7. Collar; 8. Buffer component; 81. Sleeve; 82. Sleeve rod; 83. Friction block; 84. Spring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1 to 5 As shown, this utility model provides a high-stability CNC cutting tool, including a mounting plate 1 installed on a machine tool. A connecting shaft 2 is fixedly connected to the middle of the mounting plate 1, penetrating the mounting plate 1. A cutting tool 3 is fixedly connected to the bottom of the connecting shaft 2. A ring cover 4 is fixedly connected to the bottom of the mounting plate 1, and the ring cover 4 is sleeved on the outside of the connecting shaft 2. A positioning mechanism 5 is provided on the inside of the connecting shaft 2. The positioning mechanism 5 includes two internal threaded sleeves 51, which are rotatably connected to the two ends of the ring cover 4. A screw 52 penetrating the internal threaded sleeve 51 is threadedly connected to the inside of each of the two internal threaded sleeves 51. The screws 52 have the same thread direction and the two screws 52 have the same length. One end of each screw 52 is fixedly connected to a clamping plate 54 for clamping the connecting shaft 2. The other end of each screw 52 is fixedly connected to a limiting plate 53. The bottom end of the limiting plate 53 is fixedly connected to a guide rod 57 arranged parallel to the screws 52. The guide rod 57 passes through the side wall of the ring cover 4 and is slidably connected to the ring cover 4. The end of the guide rod 57 away from the limiting plate 53 is fixedly connected to the clamping plate 54. The top end of the ring cover 4 is provided with a manual component 56 for driving the two internal threaded sleeves 51 to rotate synchronously in opposite directions.

[0023] During installation, the two internal threaded sleeves 51 are driven to rotate synchronously in opposite directions by the manual component 56. Since the two screws 52 have the same helical direction, they can move synchronously towards each other, causing the two clamping plates 54 to move towards the connecting shaft 2 synchronously and clamp it synchronously. This ensures that the connecting shaft 2 is fixed by the clamping force of the clamping plates 54, effectively avoiding the problem of misalignment caused by uneven force on one end of the connecting shaft 2.

[0024] Both clamping plates 54 are arc-shaped, and rubber pads 55 are fixedly connected to the inner sides of both clamping plates 54. The rubber pads 55 have good elasticity, which can prevent excessive pressure from damaging the connecting shaft 2 when pressure is applied to it.

[0025] The manual component 56 includes a rotating sleeve 562 sleeved on the outside of the ring cover 4. The top end of the rotating sleeve 562 is rotatably connected to the mounting plate 1. One end of each of the two internal threaded sleeves 51 is fixedly connected to a bevel gear 561. The bottom end of the rotating sleeve 562 is fixedly connected to a bevel gear 563. Both bevel gears 561 mesh with bevel gear 563. Several levers 564 are fixedly connected to the outside of the rotating sleeve 562. The levers 564 are distributed at equal angles around the rotating sleeve 562.

[0026] By manually operating the lever 564, the rotating sleeve 562 is rotated, causing the bevel gear 563 to rotate. This causes the two bevel gears 561 to rotate synchronously in opposite directions, which in turn causes the two internal threaded sleeves 51 to rotate synchronously in opposite directions. Since the two screws 52 have the same helical direction, they can move synchronously towards each other, causing the two clamping plates 54 to move towards the connecting shaft 2 synchronously and clamp it synchronously. This ensures that the connecting shaft 2 is fixed by the clamping force of the clamping plates 54 simultaneously, effectively preventing the problem of misalignment caused by asynchronous force on one end of the connecting shaft 2.

[0027] Among them, a fixed plate 6 is fixedly connected to the bottom of the ring cover 4, and a collar 7 is fixedly connected to the bottom of the connecting shaft 2. Several buffer members 8 are arranged around the collar 7 at equal angles between the collar 7 and the fixed plate 6. The buffer member 8 includes a sleeve 81, the top of the sleeve 81 is hinged to the fixed plate 6, the bottom of the sleeve 81 is slidably connected to a sleeve rod 82, the bottom of the sleeve rod 82 is hinged to the collar 7, a friction block 83 is slidably connected to the inner side of the sleeve 81, the friction block 83 is fixedly connected to the top of the sleeve rod 82, and a spring 84 is sleeved on the top of the inner side of the sleeve 81. The top of the spring 84 abuts against the inner wall of the sleeve 81, and the bottom of the spring 84 abuts against the friction block 83.

[0028] The spring 84 is designed to buffer the tool 3 during operation, while the friction block 83 can slide inside the sleeve 81 and exert sliding friction with the inner wall of the sleeve 81. This can convert the impact energy of the tool 3 into heat energy and ensure the stable operation of the tool 3.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-stability CNC cutting tool, comprising a mounting plate (1) mounted on a machine tool, wherein a connecting shaft (2) is fixedly connected to the middle of the mounting plate (1) and passes through the mounting plate (1), and a cutting tool (3) is fixedly connected to the bottom of the connecting shaft (2), characterized in that: The bottom of the mounting plate (1) is fixedly connected with a ring cover (4), the ring cover (4) is sleeved on the outer side of the connecting shaft (2), the inner side of the connecting shaft (2) is provided with a positioning mechanism (5), the positioning mechanism (5) comprises two inner threaded sleeves (51), the two inner threaded sleeves (51) are rotatably connected at the two ends of the ring cover (4) respectively, the inner sides of the two inner threaded sleeves (51) are both threadedly connected with a screw rod (52) penetrating through the inner threaded sleeve (51), one end of each of the two screw rods (52) is fixedly connected with a clamping plate (54) for clamping the connecting shaft (2), the other end of each of the two screw rods (52) is fixedly connected with a limiting plate (53), and the top end of the ring cover (4) is provided with a manual piece (56) for driving the two inner threaded sleeves (51) to synchronously and reversely rotate.

2. The high-stability numerical control cutter according to claim 1, characterized in that: The bottom end of the limiting plate (53) is fixedly connected with a guide rod (57) which is arranged in parallel with the screw rod (52), the guide rod (57) penetrates through the side wall of the ring cover (4) and is slidably connected with the ring cover (4), and the end, away from the limiting plate (53), of the guide rod (57) is fixedly connected with the clamping plate (54).

3. The high-stability CNC cutter according to claim 1, characterized in that: The two clamping plates (54) are both of arc-shaped structure, and the inner sides of the two clamping plates (54) are both fixedly connected with rubber pads (55).

4. The high-stability CNC cutter according to claim 1, characterized in that: The screw threads of the two screw rods (52) are the same in direction, and the lengths of the two screw rods (52) are the same.

5. The high-stability CNC cutter according to claim 1, characterized in that: The manual piece (56) comprises a rotating sleeve (562) which is sleeved outside the ring cover (4), the top end of the rotating sleeve (562) is rotatably connected with the mounting plate (1), one end of each of the two inner threaded sleeves (51) is fixedly connected with a bevel gear (561), the bottom end of the rotating sleeve (562) is fixedly connected with a bevel gear (563), and the two bevel gears (561) are all in mesh with the bevel gear (563).

6. A high stability CNC cutter as claimed in claim 5 wherein: The outer side of the rotating sleeve (562) is fixedly connected with a plurality of handle rods (564) which are distributed at equal angles around the rotating sleeve (562).

7. The high-stability CNC cutter according to claim 1, characterized in that: The bottom of the ring cover (4) is fixedly connected with a fixed plate (6), the bottom end of the connecting shaft (2) is fixedly connected with a sleeve ring (7), and a plurality of buffer pieces (8) which are distributed at equal angles around the sleeve ring (7) are arranged between the sleeve ring (7) and the fixed plate (6).

8. A high stability CNC tool according to claim 7, characterized in that: The buffer piece (8) comprises a sleeve (81), the top end of the sleeve (81) is hingedly connected with the fixed plate (6), the bottom end of the sleeve (81) is slidably connected with a sleeve rod (82), the bottom end of the sleeve rod (82) is hingedly connected with the sleeve ring (7), the inner side of the sleeve (81) is slidably connected with a friction block (83), the top portion of the sleeve rod (82) is fixedly connected with the friction block (83), the top end of the inner side of the sleeve (81) is sleeved with a spring (84), the top end of the spring (84) is in abutment with the inner wall of the sleeve (81), and the bottom end of the spring (84) is in abutment with the friction block (83).

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