CN217727869U

CN217727869U - Hydraulic knife handle convenient for adjusting dynamic balance

Info

Publication number: CN217727869U
Application number: CN202123310947.7U
Authority: CN
Inventors: 陈长硈; 王荪馨; 韩洪
Original assignee: Jiangsu Shuangyang Machinery Technology Co ltd
Current assignee: Jiangsu Shuangyang Machinery Technology Co ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-11-04
Anticipated expiration: 2031-12-27

Abstract

The utility model discloses a hydraulic pressure handle of a knife convenient to adjust dynamic balance, the axle center department of the double-layered sword end of handle of a knife is equipped with the axle center and presss from both sides the sword hole, in the handle of a knife, be equipped with annular oil pocket with the axle center corresponding to the outside that presss from both sides the sword hole, annular oil pocket intracavity, towards the chamber wall middle part that presss from both sides sword hole one side be equipped with the annular arch with the axle center, the oil pressure regulating groove intercommunication that the annular oil pocket established through logical oilhole and handle of a knife lateral wall, the oil pressure regulating groove is the screw hole to oil pressure regulating groove and the sealed fixed connection of oil pressure regulating bolt who matches, the lateral wall of handle of a knife, corresponding to annular oil pocket position department fixedly connected with dynamic balance adjustable ring. According to the structure, the utility model discloses a hydraulic pressure handle of a knife convenient to adjust dynamic balance, through the setting of dynamic balance adjustable ring can be to the regulation of dynamic balance behind the hydraulic pressure handle of a knife clamping cutter to still can realize dynamic balance behind the assurance handle of a knife clamping cutter.

Description

Hydraulic knife handle convenient for adjusting dynamic balance

Technical Field

The utility model relates to a technical field of high accuracy machining equipment, concretely relates to hydraulic pressure handle of a knife convenient to adjust dynamic balance.

Background

The clamping mode of the hydraulic knife handle is different from that of a traditional knife handle system, only one pressurizing bolt is needed for screwing, when the bolt is screwed, the sealing block of the piston can be pushed to generate hydraulic oil pressure in the knife handle, the pressure is uniformly transmitted to the steel expansion sleeve from the circumferential direction, and the expansion wall clamps the knife. The hydraulic pressure can control the radial run-out error precision and the repeated positioning precision of the system to be below 3 mu m. Because high-pressure oil pressure exists in the hydraulic tool handle, when the tool is clamped, the structure damping is greatly increased due to the built-in oil cavity structure and the high-pressure oil, and the tool and the main shaft of the machine tool can be effectively prevented from vibrating. Practical application shows that the clamping system can not only improve the machining precision and quality, but also improve the service life of the cutter in cutting machining by times. The tool holder not only has the maintenance-free function and the anti-pollution capability, but also is easy to use and can clamp the tool safely. When the tool is fastened, the clamping pressure can guide any oil or impurities on the tool shank into small grooves in the expansion sleeve (machined), so that the surface area for clamping can be cleaned and kept dry, the slipping phenomenon is eliminated, and the torque of the main shaft can be well transmitted to the tool.

However, in the use of the hydraulic tool handle, although the hydraulic tool handle is already adjusted in dynamic balance during production, in the actual machining process, the problem of dynamic balance still occurs in the hydraulic tool handle after the tool is mounted, which causes the problems of low machining precision, shortened service life of the tool and even the potential hazard of possible accidents in machining.

The research of technical personnel finds that the problem of dynamic balance of the tool holder after the tool is installed is that when the hydraulic tool holder clamps the clamping end of the tool, the acting position and the acting force of the expansion force generated by the annular oil cavity on the inner wall of the tool clamping hole are different relatively due to different hole wall thicknesses of the tool clamping hole, and the hole wall thickness of the tool clamping hole is not only related to the processing precision, but also related to the welding and fixing precision of the tool holder; this results in the hydraulic oil in the annular oil chamber causing the dynamic balance of the tool shank to change after the tool shank is clamped, and the change of the dynamic balance is different when the clamping ends of the clamped tool are different. How to solve the dynamic balance problem of the hydraulic knife handle after being knocked down is a technical problem which needs to be solved urgently in the field.

Disclosure of Invention

The utility model aims to provide a: the hydraulic knife handle is convenient to adjust the dynamic balance, and the dynamic balance after the knife is clamped by the hydraulic knife handle can be adjusted through the arrangement of the dynamic balance adjusting ring, so that the dynamic balance can still be realized after the knife handle is clamped by the knife; the dynamic balance adjustment of the tool holder is more accurate through the arrangement of the dynamic balance adjustment rings; the dynamic balance adjusting ring is arranged in the annular notch B of the annular sleeve, so that the phenomenon that the fixing of the dynamic balance adjusting ring can generate extra pressure on hydraulic oil in an annular oil cavity in the tool shank is avoided, the acting force of the oil pressure adjusting bolt 7 on the hydraulic oil in the annular oil cavity is further changed, then, the change of the clamping force of the tool shank on the clamping end of the tool is further caused, and finally, the change of the dynamic balance of the tool shank is caused; through the bar groove that establishes in the double-layered knife hole, can make the inner wall in double-layered knife hole separate into a plurality of bar-shaped pieces, and hydraulic oil in annular oil intracavity receives a plurality of inside bellied bar-shaped pieces that can make the inner wall in double-layered knife hole form evenly distributed after the pressure, thereby avoid because the effort of the hydraulic oil in the annular oil intracavity makes the annular protruding can lead to the effort inequality of double-layered knife hole to the exposed core of cutter to the random shape of convex position when double-layered knife hole one side is convex, and then the centre gripping effort of influence handle of a knife and cutter is unbalanced, influence the normal processing of cutter.

The utility model adopts the technical proposal that:

hydraulic pressure handle of a knife convenient to adjust dynamic balance, including the handle of a knife, the axle center department of the double-layered sword end of handle of a knife is equipped with double-layered sword hole with the axle center, in the handle of a knife, be equipped with annular oil pocket with the axle center corresponding to the outside of double-layered sword hole, annular oil pocket intracavity, towards being equipped with annular arch with the axle center in the chamber wall middle part of double-layered sword hole one side, the oil pressure adjustment tank intercommunication that the annular oil pocket established through logical oilhole and handle of a knife lateral wall, the oil pressure adjustment tank is the screw hole to oil pressure adjustment tank and the sealed fixed connection of oil pressure adjusting bolt that matches, the lateral wall of handle of a knife, be corresponding to annular oil pocket position department fixedly connected with dynamic balance adjustable ring.

The utility model discloses the further improvement scheme is, dynamic balance adjustable ring is equipped with a plurality ofly to set gradually along the axial of handle of a knife.

The utility model discloses further improve the scheme and be, the handle of a knife is equipped with annular notch A with the axle center corresponding to the lateral wall that presss from both sides sword hole one end, dynamic balance adjustable ring fixed connection is in annular notch A.

The utility model discloses further improve the scheme and be, annular notch A's annular cambered surface is equipped with the external screw thread, annular notch A passes through the external screw thread and is with axle center fixed connection with the ring casing, the dynamic balance adjustable ring passes through ring casing and handle of a knife fixed connection.

The utility model discloses further improve the scheme and be, annular sleeve's lateral wall, be located the one end of keeping away from the double-layered sword end and be equipped with annular notch B with the axle center, dynamic balance adjustable ring fixed connection is in the within range that annular notch B and annular notch A enclose.

The utility model discloses a further improvement scheme is, when annular sleeve and handle of a knife complete fixation, annular notch B corresponds with the bellied axial position of annular.

The utility model discloses a further improvement is, the inner wall in double-layered knife hole is equipped with many bar grooves that set up along the axial, the bar groove uses the axle center of handle of a knife as central evenly distributed.

The utility model discloses a further improvement scheme is, press from both sides the blind rivet connecting hole intercommunication that the sword hole and the handle of a knife other end established with the axle center to the blind rivet connecting hole is equipped with the internal thread corresponding to handle of a knife and blind rivet link position department.

The beneficial effects of the utility model reside in that:

first, the utility model discloses a hydraulic pressure handle of a knife convenient to adjust dynamic balance, the setting through dynamic balance adjustable ring can be to the dynamic balance's of hydraulic pressure handle of a knife clamping cutter back regulation to still can realize dynamic balance after having guaranteed handle of a knife clamping cutter.

Second, the utility model discloses a hydraulic pressure handle of a knife convenient to adjust dynamic balance through the setting of a plurality of dynamic balance adjustable rings to make the dynamic balance of handle of a knife adjust more accurately.

Third, the utility model discloses a hydraulic pressure handle of a knife convenient to adjust dynamic balance sets up in ring casing's annular notch B through with the dynamic balance adjustable ring to avoid the fixed hydraulic oil that can produce extra pressure to the annular oil intracavity in the handle of a knife of dynamic balance adjustable ring, and then changed oil pressure adjusting bolt 7 to the effort of the hydraulic oil of annular oil intracavity, then further arouse the change of handle of a knife to the clamp force of cutter exposed core again arouses the change of handle of a knife dynamic balance at last.

Fourth, the utility model discloses a hydraulic pressure handle of a knife convenient to adjust dynamic balance, through the bar groove that establishes in the double-layered knife hole, can make the inner wall that presss from both sides the knife hole separate into a plurality of bar-shaped pieces, and can make the inner wall that presss from both sides the knife hole form a plurality of inside bellied bar-shaped pieces of evenly distributed after the hydraulic oil in annular oil intracavity receives pressure, thereby avoid because the effort of the hydraulic oil in the annular oil intracavity makes annular protruding to pressing from both sides the knife hole one side convex in the time the random shape of convex position can lead to pressing from both sides the effort inequality of knife hole to the exposed core of cutter, and then the centre gripping effort that influences handle of a knife and cutter is uneven, influence the normal processing of cutter.

Drawings

Fig. 1 is a schematic front sectional view of the present invention.

Detailed Description

As can be seen from fig. 1, the hydraulic knife handle convenient for adjusting dynamic balance comprises a knife handle 1, a knife clamping hole 2 is coaxially arranged at the axis center of the knife clamping end of the knife handle 1, an annular oil cavity 3 is coaxially arranged in the knife handle 1 and corresponding to the outer side of the knife clamping hole 2, an annular bulge 4 is coaxially arranged in the annular oil cavity 3 and facing the middle part of the cavity wall on one side of the knife clamping hole 2, the annular oil cavity 3 is communicated with an oil pressure adjusting groove 5 arranged on the side wall of the knife handle 1 through an oil through hole 6, the oil pressure adjusting groove 5 is a threaded hole, the oil pressure adjusting groove 5 is fixedly connected with a matched oil pressure adjusting bolt 7 in a sealing manner, and a dynamic balance adjusting ring 11 is fixedly connected to the outer side wall of the knife handle 1 and corresponding to the position of the annular oil cavity 3; a plurality of dynamic balance adjusting rings 11 are arranged and are sequentially arranged along the axial direction of the tool shank 1; the outer side wall of one end, corresponding to the cutter clamping hole 2, of the cutter handle 1 is coaxially provided with an annular notch A10, and the dynamic balance adjusting ring 11 is fixedly connected into the annular notch A10; the annular cambered surface of the annular notch A10 is provided with an external thread 12, the annular notch A10 is coaxially and fixedly connected with an annular sleeve 14 through the external thread 12, and the dynamic balance adjusting ring 11 is fixedly connected with the tool shank 1 through the annular sleeve 14; an annular notch B13 is coaxially formed in one end, located far away from the cutter clamping end, of the outer side wall of the annular sleeve 14, and the dynamic balance adjusting ring 11 is fixedly connected in a range defined by the annular notch B13 and the annular notch A10; when the annular sleeve 14 and the tool shank 1 are completely fixed, the annular notch B13 corresponds to the axial position of the annular bulge 4; the inner wall of the cutter clamping hole 2 is provided with a plurality of strip-shaped grooves 16 which are axially arranged, and the strip-shaped grooves 16 are uniformly distributed by taking the axis of the cutter handle 1 as the center; the tool clamping hole 2 is communicated with a blind rivet connecting hole 8 which is coaxially formed in the other end of the tool shank 1, and an internal thread 9 is arranged at the position, corresponding to the connecting end of the tool shank 1 and the blind rivet, of the blind rivet connecting hole 8.

When the tool is used, firstly, the annular sleeve 14 sleeved with the dynamic balance adjusting ring 11 is screwed to be completely connected and fixed with the external thread 12 of the tool holder 1, then the clamping end of the tool is directly extended into the tool clamping hole 2, then the oil pressure adjusting bolt 7 is screwed to enable the oil pressure adjusting bolt 7 to move downwards along the oil pressure adjusting groove 5, then the oil pressure adjusting bolt 7 applies pressure to the hydraulic oil, the hydraulic oil is extruded and then transfers the pressure to the annular bulge 4 in the annular oil cavity 3, so that the annular bulge 4 is extruded towards one side of the tool clamping hole 2, and the clamping end of the tool in the tool clamping hole 2 is clamped and fixed; in addition, according to the dynamic balance state of the tool holder 1, the dynamic balance adjusting ring 11 between the notch B13 of the annular sleeve 14 and the notch A10 arranged on the tool holder is adjusted until the tool holder 1 clamped with the tool is in dynamic balance.

Claims

1. Hydraulic pressure handle of a knife convenient to adjust dynamic balance, its characterized in that: including handle of a knife (1), the axle center department of the double-layered sword end of handle of a knife (1) is equipped with axle center and presss from both sides sword hole (2), in handle of a knife (1), be equipped with annular oil pocket (3) with the axle center in the outside that presss from both sides sword hole (2), annular oil pocket (3) are interior, be equipped with annular arch (4) with the axle center towards the chamber wall middle part that presss from both sides sword hole (2) one side, oil pressure adjusting groove (5) intercommunication that oil hole (6) and handle of a knife (1) lateral wall were established is led to in annular oil pocket (3), oil pressure adjusting groove (5) are the screw hole to oil pressure adjusting groove (5) and the sealed fixed connection of oil pressure adjusting bolt (7) that match, the lateral wall of handle of a knife (1), be corresponding to annular oil pocket (3) position department fixedly connected with dynamic balance adjusting ring (11).

2. The hydraulic knife handle convenient for adjusting dynamic balance as recited in claim 1, characterized in that: the dynamic balance adjusting rings (11) are arranged in a plurality and are sequentially arranged along the axial direction of the tool holder (1).

3. The hydraulic knife handle convenient for adjusting dynamic balance as recited in claim 1, characterized in that: the outer side wall of the knife handle (1) corresponding to one end of the knife clamping hole (2) is provided with an annular notch A (10) in the same axial direction, and the dynamic balance adjusting ring (11) is fixedly connected in the annular notch A (10).

4. A hydraulic tool shank for facilitating adjustment of dynamic balance as set forth in claim 3 wherein: the annular cambered surface of annular notch A (10) is equipped with external screw thread (12), annular notch A (10) is through external screw thread (12) and annular sleeve pipe (14) with axle center fixed connection, dynamic balance adjustable ring (11) are through annular sleeve pipe (14) and handle of a knife (1) fixed connection.

5. The hydraulic tool shank for facilitating adjustment of dynamic balance of claim 4, wherein: the utility model discloses a dynamic balance adjusting ring, including annular sleeve (14), the one end that is located to keep away from the double-layered sword end of lateral wall, be equipped with annular notch B (13) with the axle center, dynamic balance adjusting ring (11) fixed connection is in the within range that annular notch B (13) and annular notch A (10) enclose.

6. A hydraulic tool shank for facilitating adjustment of dynamic balance as set forth in claim 5 wherein: when the annular sleeve (14) and the tool handle (1) are completely fixed, the annular notch B (13) corresponds to the axial position of the annular protrusion (4).

7. The hydraulic knife handle convenient for adjusting dynamic balance as recited in claim 1, characterized in that: the inner wall of the cutter clamping hole (2) is provided with a plurality of strip-shaped grooves (16) which are axially arranged, and the strip-shaped grooves (16) are uniformly distributed by taking the axis of the cutter handle (1) as the center.

8. The hydraulic tool shank for facilitating adjustment of dynamic balance of claim 1, wherein: the rivet connecting hole (8) which is coaxially arranged at the other end of the knife handle (1) is communicated with the knife clamping hole (2), and an internal thread (9) is arranged at the position, corresponding to the connecting end of the knife handle (1) and the rivet, of the rivet connecting hole (8).