CN217452992U

CN217452992U - Novel three-point tool shank capable of finely adjusting coaxiality of workpiece

Info

Publication number: CN217452992U
Application number: CN202221511739.5U
Authority: CN
Inventors: 丁云
Original assignee: Changzhou Baiyue Machinery Technology Co ltd
Current assignee: Changzhou Baiyue Machinery Technology Co ltd
Priority date: 2022-06-17
Filing date: 2022-06-17
Publication date: 2022-09-20
Anticipated expiration: 2032-06-17

Abstract

The utility model relates to a handle of a knife technical field especially relates to a novel three point can finely tune handle of a knife of work piece axiality, have the shank body of collet chuck including the spiro union, the centre gripping has the work piece in the collet chuck, and the one end of the shank body sets up the three fine setting hole that is cyclic annular distribution, and is three the inside in fine setting hole all is provided with the fine setting subassembly, the disc department outer wall of the shank body is fixed with the three L shaped plate that is cyclic annular distribution. The utility model discloses manual rotatory hexagonal piece enables the screw thread auxiliary rod to produce small accurate flexible volume, can promote the knock pin when the screw thread auxiliary rod stretches out, when the screw thread auxiliary rod retracts, the knock pin is returned by the elasticity that dish spring group provided, pretension between screw thread auxiliary rod and the knock pin simultaneously, can guarantee that the screw thread is not hard up for a long time, smooth stainless steel ring surrounds around collet chuck screw thread end face of cylinder, three knock pins are used in smooth stainless steel ring simultaneously, smooth stainless steel ring contacts the collet chuck, adjust the eccentricity of collet chuck, the adjustable axiality by clamping workpiece and handle of a knife.

Description

Novel three-point tool shank capable of finely adjusting coaxiality of workpiece

Technical Field

The utility model relates to a handle of a knife technical field especially relates to a novel handle of a knife of three points work piece axiality can be finely tuned.

Background

The tool holder is a tool, is a connecting piece of a mechanical main shaft, a cutter and other accessory tools, and is mainly standardized in spindle models with BT, SK, CAPTO, BBT, HSK and other specifications.

The handle of a knife cooperation collet chuck is used for the centre gripping work piece, headstock gyration is processed, the axiality of work piece and headstock is very important, in order to improve the axiality of work piece and headstock, under the prerequisite of adopting the high accuracy collet chuck, can only rely on the machining precision who improves handle of a knife self to guarantee at present, but the machining precision is not can infinitely improve, and the material also can have the deformation, and other factors such as temperature, wearing and tearing degree, all can influence the axiality, so need the handle of a knife of an adjustable axiality to solve this problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a novel three-point tool handle capable of finely adjusting the coaxiality of workpieces.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a novel handle of a knife of three points work piece axiality can be finely tuned, has the handle of a knife body of collet chuck including the spiro union, the work piece is held to the collet chuck inner clamp, and the one end of the handle of a knife body sets up three fine setting hole that is cyclic annular distribution, and is three the inside in fine setting hole all is provided with the fine setting subassembly, the disc department outer wall of the handle of a knife body is fixed with three L shaped plate that is cyclic annular distribution, and is three the outer wall that the L shaped plate is close to the handle of a knife body is fixed with auxiliary positioning assembly.

Preferably, the fine adjustment assembly comprises a thread auxiliary seat, a thread auxiliary rod, a top pin, a disc spring group and a smooth stainless steel ring, the thread auxiliary rod is screwed in the thread auxiliary seat, the disc spring group is sleeved on the top pin, and the smooth stainless steel ring is sleeved on the outer wall of the collet.

Preferably, the top end of the ejector pin is in contact with the bottom end of the threaded auxiliary rod, the bottom end of the ejector pin is in contact with the smooth stainless steel ring, and a hexagonal block is fixed at one end of the threaded auxiliary rod.

Preferably, the auxiliary positioning assembly comprises a cylindrical pipe, the inner wall of the cylindrical pipe is provided with threads, the cylindrical pipe is connected with a thread block through a thread screw, the outer wall of one end of the cylindrical pipe is provided with a round opening, the inner wall of the round opening is slidably connected with a fixed rod, one end of the fixed rod is fixedly connected with the thread block, a built-in groove is reserved in the fixed rod, the inner wall of the built-in groove is fixed with a spring, one end of the spring is fixed with a sliding plate, one end of the fixed rod is provided with a sliding opening, and the inner wall of the sliding opening is slidably connected with a screw rod.

Preferably, the outer wall spiro union of screw rod has the holding ring, and the holding ring is fixed with the blotter with the dead lever outer wall, and the one end of screw rod is fixed with the slipmat.

Preferably, the positioning ring is in contact with the outer wall of one end of the columnar pipe, and the cushion pad is in contact with the outer wall of one end of the fixing rod.

The utility model has the advantages that:

1. this novel handle of a knife of three point finely tune work piece axiality, three fine setting subassembly has been set up, enable the vice pole of screw thread to produce small accurate flexible volume through manual rotatory hexagonal piece, can promote the knock pin when the vice pole of screw thread stretches out, when the vice pole of screw thread retracts, the knock pin is returned by the elasticity that dish spring group provided, pretension between vice pole of screw thread and the knock pin simultaneously, can guarantee that the screw thread is not hard up for a long time, smooth stainless steel ring surrounds around collet chuck screw thread end face of cylinder, three knock pins are used in on smooth stainless steel ring simultaneously, smooth stainless steel ring contacts the collet chuck, adjust the eccentricity of collet chuck, the joining of smooth stainless steel simultaneously can disperse pressure, reduce wearing and tearing, avoid the wearing and tearing that the direct contact of knock pin and collet chuck produced, summarize the aforesaid, can effectual regulation by the axiality of centre gripping work piece and handle of a knife.

2. This novel handle of a knife of three points can finely tune work piece axiality has set up three assistance-localization real-time subassembly, rotates the screw rod and can drive the screw block and the inside formation normal running fit of column, adjusts the interval between slipmat and the handle of a knife body, then the slipmat can hug closely handle of a knife body one end under the influence of spring, lets the handle of a knife body and collet chuck junction more fasten, avoids the collet chuck to take place the skew in the use, the holding ring can form normal running fit with the screw rod to this adjustable screw motion range.

Drawings

FIG. 1 is a schematic view of a vertical cross-sectional structure of a novel three-point tool holder for fine adjustment of workpiece coaxiality, according to the present invention;

FIG. 2 is an enlarged view of A in FIG. 1;

FIG. 3 is a schematic diagram of a side view structure of a novel three-point tool holder capable of fine-tuning the coaxiality of a workpiece;

fig. 4 is the utility model provides a novel three fine setting subassembly of handle of a knife of work piece axiality is finely tuned to three is erected cross-section distribution structure sketch map.

In the figure: 1 knife handle body, 2 collet chucks, 3 smooth stainless steel rings, 4 knock pins, 5 disc spring groups, 6 thread auxiliary seats, 7 thread auxiliary rods, 8 workpieces, 9L-shaped plates, 10 cylindrical pipes, 11 thread blocks, 12 fixing rods, 13 springs, 14 sliding plates, 15 screw rods, 16 anti-skidding pads, 17 positioning rings and 18 cushion pads.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Embodiment 1, refer to fig. 1-4, a novel three-point tool holder capable of fine-tuning workpiece coaxiality comprises a tool shank body 1 in threaded connection with a collet 2, a workpiece 8 is clamped in the collet 2, three fine-tuning holes distributed annularly are formed in one end of the tool shank body 1, fine-tuning assemblies are arranged in the three fine-tuning holes, three L-shaped plates 9 distributed annularly are fixed on the outer wall of the disc-shaped part of the tool shank body 1, and an auxiliary positioning assembly is fixed on the outer wall, close to the tool shank body 1, of the three L-shaped plates 9;

the fine adjustment assembly comprises a threaded auxiliary seat 6, a threaded auxiliary rod 7, a top pin 4, a disc spring group 5 and a smooth stainless steel ring 3, the threaded auxiliary rod 7 is in threaded connection with the threaded auxiliary seat 6, the disc spring group 5 is sleeved on the top pin 4, and the smooth stainless steel ring 3 is sleeved on the outer wall of the collet chuck 2;

the top end of the ejector pin 4 is in contact with the bottom end of the threaded auxiliary rod 7, the bottom end of the ejector pin 4 is in contact with the smooth stainless steel ring 3, and a hexagonal block is fixed at one end of the threaded auxiliary rod 7.

Embodiment 2 is optimized on the basis of embodiment 1, the auxiliary positioning assembly includes a cylindrical pipe 10, the inner wall of the cylindrical pipe 10 is provided with a thread, the cylindrical pipe 10 is screwed with a thread block 11 through the thread, the outer wall of one end of the cylindrical pipe 10 is provided with a round mouth, the inner wall of the round mouth is connected with a fixing rod 12 in a sliding manner, one end of the fixing rod 12 is fixedly connected with the thread block 11, an internal groove is reserved in the fixing rod 12, a spring 13 is fixed on the inner wall of the internal groove, a sliding plate 14 is fixed on one end of the spring 13, a sliding mouth is formed at one end of the fixing rod 12, and the inner wall of the sliding mouth is connected with a screw rod 15 in a sliding manner;

a positioning ring 17 is screwed on the outer wall of the screw rod 15, a cushion pad 18 is fixed on the positioning ring 17 and the outer wall of the fixed rod 12, and an anti-skid pad 16 is fixed at one end of the screw rod 15;

the three anti-slip pads 16 are tightly attached to one end of the tool shank body 1 under the influence of the three springs 13 and buffer the vibration force, so that the joint of the tool shank body 1 and the collet chuck 2 can be fastened, and the collet chuck 2 is prevented from deviating in the using process;

the positioning ring 17 is in contact with the outer wall of one end of the cylindrical pipe 10, and the cushion 18 is in contact with the outer wall of one end of the fixing rod 12.

The working principle is as follows:

when the tool is used, a workpiece 8 is inserted into the collet chuck 2, then the three screw rods 15 are rotated to drive the thread blocks 11 to form rotating fit with the interior of the cylindrical pipe 10, the three anti-slip pads 16 can be contacted with the tool shank body 1, then the spacing between the positioning ring 17 and the fixing rod 12 is rotated, so that the running range of the screw rods 15 can be adjusted, when the workpiece 8 is machined, the three anti-slip pads 16 cling to one end of the tool shank body 1 under the influence of the three springs 13 and buffer the vibration force, the joint of the tool shank body 1 and the collet chuck 2 can be fastened, and the collet chuck 2 is prevented from deviating in the using process;

during adjustment, the auxiliary threaded rod 7 can generate tiny precise telescopic amount by manually rotating the hexagonal block, when the auxiliary threaded rod 7 extends out, the ejector pin 4 can be pushed, when the auxiliary threaded rod 7 retracts, the ejector pin 4 retracts due to the elastic force provided by the disc spring group 5, meanwhile, the auxiliary threaded rod 7 and the ejector pin 4 are pre-tightened, the threads can be prevented from loosening for a long time, the smooth stainless steel ring 3 surrounds the cylindrical surface of the threaded end of the collet chuck 2, the three ejector pins 4 act on the smooth stainless steel ring 3 at the same time, the smooth stainless steel ring 3 is in contact with the collet chuck 2, the eccentricity of the collet chuck 2 is adjusted, meanwhile, the smooth stainless steel ring 3 is added to disperse pressure, abrasion is reduced, abrasion caused by direct contact of the ejector pin 4 and the collet chuck 2 is avoided, and the coaxiality of a clamped workpiece 8 and the tool shank body 1 can be effectively adjusted.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a novel handle of a knife of three points work piece axiality of can finely tuning, has the shank body (1) of collet chuck (2) including the spiro union, its characterized in that, workpiece (8) are held to the collet chuck (2) interior clamp, and the one end of shank body (1) sets up three fine setting hole that is cyclic annular distribution, and is three the inside in fine setting hole all is provided with the fine setting subassembly, the disc department outer wall of shank body (1) is fixed with three L shaped plate (9) that are cyclic annular distribution, and is three the outer wall that L shaped plate (9) are close to the shank body (1) is fixed with auxiliary positioning assembly.

2. The novel three-point cutter handle capable of finely adjusting the coaxiality of a workpiece according to claim 1, wherein the fine adjustment assembly comprises a screw auxiliary seat (6), a screw auxiliary rod (7), a top pin (4), a disc spring group (5) and a smooth stainless steel ring (3), the screw auxiliary rod (7) is screwed in the screw auxiliary seat (6), the disc spring group (5) is sleeved on the top pin (4), and the smooth stainless steel ring (3) is sleeved on the outer wall of the collet (2).

3. A novel three-point tool shank capable of finely adjusting the coaxiality of workpieces as claimed in claim 2, characterized in that the top end of the top pin (4) is in contact with the bottom end of the screw pair rod (7), the bottom end of the top pin (4) is in contact with the smooth stainless steel ring (3), and a hexagonal block is fixed at one end of the screw pair rod (7).

4. The novel knife handle capable of finely adjusting the coaxiality of a workpiece at three points as claimed in claim 1, wherein the auxiliary positioning assembly comprises a cylindrical pipe (10), the inner wall of the cylindrical pipe (10) is provided with threads, the cylindrical pipe (10) is in threaded connection with a thread block (11) through the threads, the outer wall of one end of the cylindrical pipe (10) is provided with a round opening, the inner wall of the round opening is in sliding connection with a fixing rod (12), one end of the fixing rod (12) is fixedly connected with the thread block (11), a built-in groove is reserved in the fixing rod (12), a spring (13) is fixed on the inner wall of the built-in groove, a sliding plate (14) is fixed at one end of the spring (13), a sliding opening is formed at one end of the fixing rod (12), and a screw (15) is in sliding connection with the inner wall of the sliding opening.

5. The novel knife handle capable of finely adjusting the coaxiality of workpieces at three points as claimed in claim 4, wherein a positioning ring (17) is screwed on the outer wall of the screw rod (15), a cushion pad (18) is fixed on the outer walls of the positioning ring (17) and the fixing rod (12), and a non-slip pad (16) is fixed on one end of the screw rod (15).

6. A novel three-point fine adjustable tool shank for workpiece coaxiality according to claim 5, wherein the positioning ring (17) is in contact with the outer wall of one end of the cylindrical tube (10), and the cushion pad (18) is in contact with the outer wall of one end of the fixing rod (12).