Internal cooling type external expansion hydraulic cutter handle

Abstract

The utility model discloses an internal cooling type external expansion hydraulic knife handle, which belongs to the technical field of hydraulic knife handles, and comprises a knife handle, the peripheral side of the knife handle is respectively provided with an annular groove, a pressurizing bolt and a protective sleeve, the inside of the knife handle is respectively provided with an adjusting component, a cooling channel and a cavity, and the adjusting component is arranged in the cavity. According to the cooling device, the adjusting assembly is arranged, the self-locking adjusting knob is rotated, the self-locking adjusting knob drives the inner gear ring to rotate through the gear, the first sliding block pushes the supporting rod to move upwards through the second sliding block, the first connecting rod is promoted to drive the second connecting rod to rotate, and finally the adjusting block rotates with the hollow shaft as the axis, so that the angle of the cooling spray head is adjusted; and therefore, the cooling liquid can be accurately sprayed to the cutting part, and the applicability of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to hydraulic tool holder technical field especially relates to an internal cooling type external expansion hydraulic tool holder. BACKGROUND

[0002] The internal cooling type external expansion hydraulic tool holder is an advanced tool clamping technology, and a large amount of heat is generated in the tool holder during machining due to long-term work, so that the internal cooling type external expansion hydraulic tool holder is integrated with a cooling channel, which can reduce the problem of built-up edge caused by insufficient cooling effect during machining, and therefore it is necessary to design an internal cooling type external expansion hydraulic tool holder.

[0003] For example, a kind of internal cooling type external expansion hydraulic tool holder of Chinese invention patent (CN218613016U) includes tool body;One end of tool body is equipped with the butt joint for installing tool;Butt joint includes inner sleeve and outer sleeve;Tight interlayer is formed between outer sleeve and inner sleeve;Corresponding interlayer is equipped with communicating hole on tool body;The inside of inner sleeve is equipped with cooling flow channel, one end is butted with tool body, one end is equipped with liquid outlet corresponding cooling flow channel, but the device in the process of use faces different length tools, cooling liquid can not be accurately sprayed to cutting position, the cooling effect of cutting edge is poor, therefore improvement is needed. UTILITY MODEL CONTENTS

[0004] The utility model aims at: in order to solve the prior art but the device in the process of use faces different length tools, cooling liquid can not be accurately sprayed to cutting position, the cooling effect of cutting edge is poor the problem of, and a kind of internal cooling type external expansion hydraulic tool holder is presented.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] An internal cooling type external expansion hydraulic tool holder, comprising a tool holder, an annular groove, a pressurizing bolt and a protective sleeve are arranged on the outer periphery side of the tool holder, an adjusting assembly, a cooling channel and a cavity are arranged in the tool holder, and the adjusting assembly is arranged in the cavity.

[0007] The adjusting assembly comprises an inner gear ring, four first sliding blocks are fixedly connected to the outer periphery side of the inner gear ring in a circumferential array, a second sliding block is arranged on the side of the first sliding block away from the inner gear ring, a support rod and two springs are fixedly connected to the top of the second sliding block, the other end of the spring is fixedly connected to the inner wall of the tool holder, a connecting seat is fixedly connected to the end of the support rod away from the second sliding block, a first rotating shaft is rotatably connected in the connecting seat, a first connecting rod is fixedly connected to the outer periphery side of the first rotating shaft, and a second connecting rod is slidably connected to the outer periphery side of the first connecting rod.

[0008] As a further description of the above technical scheme:

[0009] The first sliding block and the second sliding block are both provided with inclined surfaces, and the second sliding block, the supporting rod and the connecting base are all slidingly connected in the cavity.

[0010] As a further description of the above technical solution:

[0011] The second connecting rod is fixedly connected with an adjusting block at a side away from the connecting base, both ends of the adjusting block are fixedly connected with hollow shafts, the hollow shafts are in communication with the inside of the adjusting block, the hollow shafts are communicated with infusion tubes through liquid pipe rotary joints at a side away from the adjusting block, the infusion tubes are fixedly connected in the handle, and the other ends of the infusion tubes are in communication with the cooling channel.

[0012] As a further description of the above technical solution:

[0013] The adjusting block is provided as a cylinder, the adjusting block and the hollow shafts are both rotationally connected in the handle, the adjusting block is fixedly connected with a cooling nozzle at a side away from the second connecting rod, and the cooling nozzle is located outside the handle.

[0014] As a further description of the above technical solution:

[0015] The inner gear ring is meshed with a gear, one side of the gear is fixedly connected with a second rotating shaft, the second rotating shaft is fixedly connected with a self-locking adjusting knob at a side away from the gear, the self-locking adjusting knob is arranged outside the handle, and the second rotating shaft is rotationally connected in the handle.

[0016] As a further description of the above technical solution:

[0017] The protective sleeve is provided with threads on the outer circumferential side and the inner wall of the annular groove, the protective sleeve is screw-connected in the annular groove, the protective sleeve is slidingly connected on the outer circumferential side of the handle, and the pressurizing bolt is located between the protective sleeve and the handle.

[0018] As a further description of the above technical solution:

[0019] The cooling channel is communicated with an external infusion device through a pipeline, and the inner gear ring is rotationally connected in the cavity.

[0020] As described above, due to the adoption of the above technical solution, the beneficial effects of the present application are:

[0021] 1. In the present application, the adjusting assembly is arranged, the self-locking adjusting knob is rotated, the self-locking adjusting knob drives the inner gear ring to rotate through the gear, the first sliding block pushes the supporting rod to move upward through the second sliding block, the first connecting rod drives the second connecting rod to rotate, and finally the adjusting block rotates around the hollow shaft as the axis, so that the angle of the cooling nozzle is adjusted to adapt to different lengths of the cutting tool, and the cooling liquid can be accurately sprayed to the cutting position, thereby improving the applicability of the device.

[0022] 2. The utility model discloses a protective sleeve is set up, and the operator removes and rotates the protective sleeve, and makes the outer circumferential side thread of protective sleeve and the thread in annular groove engage, thereby make protective sleeve screen press bolt, prevent the invasion of coolant and metal scrap in press bolt in the processing, avoid the press generation bolt rust or loose, improved the stability of device. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is whole structure schematic diagram of the utility model;

[0024] Figure 2 It is split structure schematic diagram of the utility model;

[0025] Figure 3 It is whole cross section structure schematic diagram of the utility model;

[0026] Figure 4 It is whole structure schematic diagram of the utility model adjusting assembly.

[0027] Legend:

[0028] 1, handle of knife;2, annular groove;3, protective sleeve;4, press bolt;5, cooling channel;6, adjusting assembly;601, inner gear ring;602, first sliding block;603, second sliding block;604, support rod;605, spring;606, connecting seat;607, first rotating shaft;608, first connecting rod;609, second connecting rod;610, adjusting block;611, hollow shaft;612, infusion tube;613, cooling nozzle;614, gear;615, second rotating shaft;616, self-locking adjusting knob. DETAILED DESCRIPTION

[0029] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0030] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: an internal cooling type outer expansion hydraulic knife handle, including handle of knife 1, handle of knife 1 outer circumferential side is respectively provided with annular groove 2, press bolt 4 and protective sleeve 3, handle of knife 1 inner portion is respectively provided with adjusting assembly 6, cooling channel 5 and cavity, adjusting assembly 6 is set in cavity;

[0031] The adjusting assembly 6 comprises an inner ring gear 601, four first sliding blocks 602 in circumferential array are fixedly connected to the outer circumferential side of the inner ring gear 601, the first sliding blocks 602 are provided with second sliding blocks 603 away from the side of the inner ring gear 601, the top of the second sliding blocks 603 is fixedly connected with a supporting rod 604 and two springs 605, the other end of the springs 605 is fixedly connected with the inner wall of the shank 1, the end of the supporting rod 604 away from the second sliding block 603 is fixedly connected with a connecting seat 606, the connecting seat 606 is rotatably connected with a first rotating shaft 607 inside, the first rotating shaft 607 is fixedly connected with a first connecting rod 608 on the outer circumferential side, and the first connecting rod 608 is slidably connected with a second connecting rod 609 on the outer circumferential side.

[0032] The specific implementation is: by rotating the self-locking adjusting knob 616, the self-locking adjusting knob 616 drives the gear 614 to rotate through the second rotating shaft 615, the gear 614 then drives the inner ring gear 601 to rotate, and the first sliding block 602 on the inner ring gear starts to extrude the second sliding block 603; in the extrusion process, the second sliding block 603 compresses the spring 605 while pushing the supporting rod 604 to move upward, the supporting rod 604 transmits power to the first connecting rod 608 through the connecting seat 606, so that the first connecting rod 608 moves upward, then the first connecting rod 608 drives the second connecting rod 609 to move, and finally the adjusting block 610 rotates around the hollow shaft 611, the angle of the cooling nozzle 613 is accurately adjusted, so as to adapt to cutters of different lengths, ensure that the cooling liquid can be accurately sprayed to the cutting position, and thus the applicability of the device is improved, and the shape of the cooling channel 5 can be set according to actual needs.

[0033] The contact surface of the first slider 602 and the second slider 603 is provided as an inclined surface, the second slider 603, the supporting rod 604 and the connecting base 606 are slidingly connected in the cavity, the second connecting rod 609 is fixedly connected with the adjusting block 610 away from one side of the connecting base 606, the hollow shaft 611 is fixedly connected at both ends of the adjusting block 610 and communicates with the inside of the adjusting block 610, the infusion tube 612 is in communication with the hollow shaft 611 away from one end of the adjusting block 610 through a liquid pipe rotary joint, the infusion tube 612 is fixedly connected in the handle 1, the other end of the infusion tube 612 is in communication with the cooling channel 5, the adjusting block 610 is provided as a cylinder, the adjusting block 610 and the hollow shaft 611 are rotatably connected in the handle 1, the cooling spray head 613 is fixedly connected away from one side of the adjusting block 610, the cooling spray head 613 is located outside the handle 1, the gear 614 is engaged in the inner gear ring 601, the second rotating shaft 615 is fixedly connected on one side of the gear 614, the self-locking adjusting knob 616 is fixedly connected away from one side of the second rotating shaft 615, the self-locking adjusting knob 616 is provided outside the handle 1, the second rotating shaft 615 is rotatably connected in the handle 1, the outer circumferential side of the protective sleeve 3 and the inner wall of the annular groove 2 are both provided with threads, the protective sleeve 3 is threadedly connected in the annular groove 2, the protective sleeve 3 is slidingly connected on the outer circumferential side of the handle 1, the pressurizing bolt 4 is located between the protective sleeve 3 and the handle 1, the cooling channel 5 is in communication with an external infusion device through a pipeline, and the inner gear ring 601 is rotatably connected in the cavity.

[0034] The specific implementation is that: the operator moves and rotates the protective sleeve 3, so that the threads on the outer circumference of the protective sleeve 3 are closely engaged with the threads in the annular groove 2, the protective sleeve 3 shields the pressurizing bolt 4, prevents the cooling liquid and metal debris from penetrating into the inside of the pressurizing bolt 4 during the machining process, and thus avoids that the stability of the device is affected due to corrosion or loosening of the pressurizing bolt 4, and improves the overall reliability of the device.

[0035] Working principle: in use, the operator inserts the cutter into the handle 1, after the cutter is inserted, the operator turns the pressure bolt 4 through the tool, and the cutter is fixed, then the operator moves and rotates the protective sleeve 3 to the annular groove 2 direction, the outer peripheral side thread of the protective sleeve 3 is engaged with the inner wall thread of the annular groove 2, when the protective sleeve 3 moves to the bottom of the annular groove 2, the shielding of the pressure bolt 4 is completed, then the self-locking adjusting knob 616 is rotated, the self-locking adjusting knob 616 drives the gear 614 to rotate through the second rotating shaft 615, the gear 614 drives the inner tooth ring 601 to rotate, the first sliding block 602 on the outer peripheral side of the inner tooth ring 601 is extruded, the second sliding block 603 is extruded, the spring 605 is extruded at the same time, the support rod 604 is moved upward, the first connecting rod 608 is moved upward through the connecting seat 606, the adjusting block 610 is rotated through the second connecting rod 609, so that the adjusting block 610 drives the cooling nozzle 613 to rotate around the hollow shaft 611, so as to adjust the angle of the cooling nozzle 613, ensure that the angle of the nozzle is aligned with the position of the cutter blade, then the operator connects the handle 1 with the machine tool spindle, the machine tool spindle drives the cutter to process the material through the handle 1, at the same time, the external liquid supply device inputs the cooling liquid into the cooling channel 5 through the pipeline, then the cooling liquid is sprayed out through the cooling nozzle 613, and the cutter in the handle 1 and the external area is cooled at the same time.

[0036] The above merely describes a preferred embodiment of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. An internally cooled hydraulic expansion tool holder comprising a tool holder (1), characterized in that: The outer periphery of the tool holder (1) is respectively provided with an annular groove (2), a pressurizing bolt (4) and a protective sleeve (3), and the inner part of the tool holder (1) is respectively provided with an adjusting assembly (6), a cooling channel (5) and a cavity, and the adjusting assembly (6) is arranged in the cavity. The adjusting assembly (6) comprises an inner gear ring (601), the outer periphery of the inner gear ring (601) is fixedly connected with four first sliding blocks (602) arranged in a circumferential array, the side, away from the inner gear ring (601), of the first sliding block (602) is provided with a second sliding block (603), the top of the second sliding block (603) is fixedly connected with a supporting rod (604) and two springs (605), the other end of the spring (605) is fixedly connected with the inner wall of the tool holder (1), the end, away from the second sliding block (603), of the supporting rod (604) is fixedly connected with a connecting seat (606), the inside of the connecting seat (606) is rotatably connected with a first rotating shaft (607), the outer periphery of the first rotating shaft (607) is fixedly connected with a first connecting rod (608), and the outer periphery of the first connecting rod (608) is slidably connected with a second connecting rod (609).

2. The inner-cooled hydraulic expansion tool holder according to claim 1, wherein: The contact surfaces of the first sliding block (602) and the second sliding block (603) are both arranged as inclined surfaces, and the second sliding block (603), the supporting rod (604) and the connecting seat (606) are all slidably connected in the cavity.

3. The inner-cooled hydraulic expansion tool holder according to claim 2, wherein: The side, away from the connecting seat (606), of the second connecting rod (609) is fixedly connected with an adjusting block (610), both ends of the adjusting block (610) are fixedly connected with hollow shafts (611), the hollow shafts (611) are in communication with the inside of the adjusting block (610), the end, away from the adjusting block (610), of the hollow shaft (611) is connected in communication with a liquid delivery pipe (612) through a liquid pipe rotary joint, the liquid delivery pipe (612) is fixedly connected in the tool holder (1), and the other end of the liquid delivery pipe (612) is in communication with the cooling channel (5).

4. The inner-cooled hydraulic expansion tool holder according to claim 3, wherein: The adjusting block (610) is arranged as a cylinder, and the adjusting block (610) and the hollow shaft (611) are both rotatably connected in the tool holder (1), the side, away from the second connecting rod (609), of the adjusting block (610) is fixedly connected with a cooling nozzle (613), and the cooling nozzle (613) is located outside the tool holder (1).

5. The inner-cooled hydraulic expansion tool holder according to claim 4, wherein: The inside of the inner gear ring (601) is meshed with a gear (614), one side of the gear (614) is fixedly connected with a second rotating shaft (615), the side, away from the gear (614), of the second rotating shaft (615) is fixedly connected with a self-locking adjusting knob (616), the self-locking adjusting knob (616) is arranged outside the tool holder (1), and the second rotating shaft (615) is rotatably connected in the tool holder (1).

6. The inner-cooled hydraulic expansion tool holder according to claim 5, wherein: The outer periphery of the protective sleeve (3) and the inner wall of the annular groove (2) are both provided with threads, the protective sleeve (3) is threadedly connected in the annular groove (2), the protective sleeve (3) is slidably connected on the outer periphery of the tool holder (1), and the pressurizing bolt (4) is located between the protective sleeve (3) and the tool holder (1).

7. The inner-cooled hydraulic expansion tool holder according to claim 6, wherein: The cooling channel (5) is connected in communication with an external liquid delivery device through a pipeline, and the inner gear ring (601) is rotatably connected in the cavity.

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