CN112621268A

CN112621268A - Fixed cutter device convenient for replacing cutter for machine tool

Info

Publication number: CN112621268A
Application number: CN202011452115.6A
Authority: CN
Inventors: 李鹏; 倪健
Original assignee: Shandong Zecheng Cnc Machinery Co ltd
Current assignee: Shandong Zecheng Cnc Machinery Co ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-04-09
Anticipated expiration: 2040-12-10
Also published as: CN112621268B

Abstract

The invention relates to the technical field of machine tool machining, in particular to a fixed cutter device convenient for cutter replacement for a machine tool, which comprises a placing seat, a transmission mechanism, an adjusting mechanism, an operating mechanism, a fastening mechanism and a cooling mechanism, wherein the placing seat is provided with a positioning hole; when the tool is used, the adjusting mechanism is arranged on one side of the transmission mechanism, so that the operating mechanism is further conveniently adjusted, and the tool can be conveniently and quickly operated to adjust during operation; the fastening mechanism is arranged in the operating mechanism, so that the cutter in the operating mechanism can be conveniently and truly limited and fixed, meanwhile, the limiting and fixing state can be conveniently released at any time, the use of a plurality of fasteners is avoided, and the cutter can be more conveniently mounted and dismounted; the cooling mechanism is arranged at the bottom of the placing seat, so that corresponding cooling liquid can be conveniently added to the operating mechanism and the machined part in the actual machining process, the cooling and radiating effects on the operating mechanism and the machined part can be conveniently achieved, and the normal machining process is guaranteed.

Description

Fixed cutter device convenient for replacing cutter for machine tool

Technical Field

The invention relates to the technical field of machine tool machining, in particular to a cutter fixing device convenient for cutter replacement for a machine tool.

Background

Machine tools are machines for manufacturing machines, also called machine tools or machine tools, which are conventionally called machine tools for short. Generally, the machining method is divided into a metal cutting machine, a forging machine, a woodworking machine and the like. The methods for machining machine parts in modern machine manufacturing are numerous: in addition to cutting, casting, forging, welding, pressing, extruding, etc., however, in general, a part requiring high precision and fine surface roughness is finished by cutting on a machine tool. The machine tool plays an important role in the construction of national economy modernization.

However, when a machine tool is used at present, it is difficult to conveniently and quickly adjust a machining tool of the machine tool, and actual machining is inconvenient; meanwhile, a plurality of fasteners are mostly needed when the traditional machine tool machining tool is fixedly installed, and the installation and the disassembly process are very inconvenient; in addition, in an actual machining process, when the operation time is too long, the temperature of the machining tool and the temperature of the workpiece may be too high, thereby affecting a normal machining process.

Disclosure of Invention

The invention provides a fixed cutter device for a machine tool, which is convenient for replacing a cutter and aims to solve the problems in the prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a lathe is with fixed cutter device convenient to replacement cutter, is including settling seat, drive mechanism, adjustment mechanism, operating device, fastening device and cooling body for settle other mechanisms the inside of settling seat is equipped with conveniently right adjustment mechanism with operating device removes drive mechanism, one side of drive mechanism is equipped with conveniently right operating device plays the regulating action adjustment mechanism, adjustment mechanism deviates from one side of drive mechanism is equipped with conveniently realizes machining operating device, operating device's inside is equipped with conveniently further right operating device plays spacing arrangement effect fastening device, one side of drive mechanism bottom is equipped with conveniently right the device during operation operating device and processing work piece play the cooling device.

Specifically, drive mechanism includes motor, first screw rod, gag lever post and transmission piece, the position that is close to the top on one side of the seat of arrangement is equipped with the motor, the one end of motor extends to the seat of arrangement is inside and be connected with first screw rod, first screw rod threaded connection in the inside of transmission piece, the transmission piece block in the inside of seat of arrangement, the inside of seat of arrangement is equipped with the gag lever post, the gag lever post link up the transmission piece.

Specifically, adjustment mechanism is including settling frame, knob, second screw rod, connecting block and first spring, the transmission piece deviates from the one end of settling seat is fixed with settle the frame, the top of settling the frame is equipped with the knob, the bottom of knob is connected with the second screw rod, second screw rod threaded connection in the inside of connecting block, just the connecting block the block in settle inside the frame, the bottom of connecting block is connected with first spring, the bottom of first spring is fixed in the inner wall of settling the frame, just first spring twine in the second screw rod.

Specifically, operating device includes support, cutter body, bolt, second spring and fixture block, the connecting block deviates from the one end of settling the frame is connected with the support, the inside of support is equipped with the cutter body, the top of support is equipped with the bolt, just the bottom threaded connection of bolt in the inside of cutter body, the inside that the bolt is close to bottom part position back of the body both sides is connected with one respectively the second spring, the other end of second spring is connected with the fixture block, the fixture block in the inside of cutter body.

Specifically, the fastening mechanism comprises a rotating block, a second screw rod, a supporting rod, a clamping rod and a third spring, the rotating block is arranged at the top of the bolt, the bottom end of the rotating block is connected with the second screw rod, the second screw rod is in threaded connection with the inside of the supporting rod, the supporting rod is clamped in the bolt, two sides of the bolt close to the bottom end are respectively clamped with one clamping rod, the third spring is wound on the clamping rod, one end of the third spring is fixed to the clamping rod, and the other end of the third spring is fixed to the inner wall of the bolt.

Specifically, cooling body includes storage tank, pinion rack, gear, bull stick, siphunculus, lead to pole and fourth spring, the middle part of mount bottom one side is fixed with the storage tank, one side block of storage tank bottom has the siphunculus, the inside block of siphunculus has the lead to pole, the winding has on the lateral wall of lead to pole the fourth spring, the top of fourth spring is fixed in the lead to pole, the bottom of fourth spring is fixed in the inner wall of siphunculus, the bottom middle part of transmission piece is fixed with the pinion rack, the pinion rack block in the inside of mount, just the bottom meshing of pinion rack has the gear, the gear is located inside the lateral wall of storage tank, the middle part of gear is connected with the bull stick, just the bull stick extends to inside the storage tank.

The invention has the beneficial effects that:

(1) when the fixed cutter device convenient for cutter replacement for the machine tool is used, the adjusting mechanism is arranged on one side of the transmission mechanism, and the operating mechanism is further conveniently adjusted through the corresponding screw rod transmission assembly, so that the cutter can be conveniently and quickly operated to adjust during operation, and the use is more convenient; namely: during actual processing, the user can manually rotate the knob, the knob rotates to drive the second screw rod to rotate, the second screw rod rotates to enable the connecting block to move back and forth continuously in the arranging frame, the first spring is pressed simultaneously, therefore, the operating mechanism is further convenient to adjust, the operating tool which can be conveniently and rapidly operated is adjusted, and the use is more convenient.

(2) When the fixed cutter device convenient for replacing the cutter for the machine tool is used, the fastening mechanism is arranged in the operating mechanism, and the cutter in the operating mechanism is conveniently really limited and fixed through the corresponding lead screw transmission assembly and the corresponding spring clamping block assembly, and meanwhile, the limit and fixed state is conveniently released at any time, so that the use of a plurality of fasteners is avoided, and the installation and the disassembly of the cutter are more convenient; namely: get into the inside back of cutter body at the bolt, the user can manually rotate the commentaries on classics piece, it rotates to rotate and drives the second screw rod and rotate, the second screw rod rotates and makes the kelly continuous in the inside removal of bolt, until extrudeing the conflict to two kellies, when the fixture block received the extrusion conflict, the third spring contracts simultaneously, the fixture block can direct block to the inside of support, thereby conveniently play real spacing fixed effect to the cutter body, also be convenient for simultaneously remove spacing fixed state at any time, the use of a plurality of fasteners has been avoided, make the installation to the cutter body dismantle more convenient.

(3) When the fixed cutter device convenient for replacing the cutter for the machine tool is used, the cooling mechanism is arranged at the bottom of the placing seat, and corresponding cooling liquid can be conveniently added to the operating mechanism and a machined part in the actual machining process through corresponding toothed plate gear transmission and a cam-like extrusion assembly, so that the cooling and heat dissipation effects on the operating mechanism and the machined part can be conveniently realized, and the normal machining process is ensured; namely: in actual operation, along with the removal of transmission block, can drive the pinion rack and remove simultaneously, and then drive gear revolve, gear revolve drives the bull stick and rotates, along with the rotation of bull stick, can be continuous to push the conflict to the through-rod, the fourth spring is compressed simultaneously, expose to the outside back of storage tank completely as the logical groove of through-rod bottom, the inside coolant liquid that adds in advance of storage tank will directly spill to operating device and machined part on, thereby the convenience can add corresponding coolant liquid on operating device and machined part in actual course of working, make and conveniently play cooling heat dissipation's effect to operating device and machined part, guarantee the normal of course of working.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural diagram illustrating the overall structure of a preferred embodiment of a fixed tool device for a machine tool, which facilitates tool replacement, according to the present invention;

FIG. 2 is a schematic view of a connection structure of the mounting seat, the transmission mechanism, the adjusting mechanism, the operating mechanism and the fastening mechanism shown in FIG. 1;

FIG. 3 is a schematic view of a connection structure of the seat, the transmission mechanism and the cooling mechanism shown in FIG. 1;

FIG. 4 is an enlarged view of the structure A shown in FIG. 1;

FIG. 5 is an enlarged view of the structure B shown in FIG. 2;

fig. 6 is an enlarged schematic view of the structure C shown in fig. 3.

In the figure: 1. the device comprises a placing seat, 2, a transmission mechanism, 21, a motor, 22, a first screw rod, 23, a limiting rod, 24, a transmission block, 3, an adjusting mechanism, 31, a placing frame, 32, a knob, 33, a second screw rod, 34, a connecting block, 35, a first spring, 4, an operating mechanism, 41, a support, 42, a cutter body, 43, a bolt, 44, a second spring, 45, a clamping block, 5, a fastening mechanism, 51, a rotating block, 52, a second screw rod, 53, a resisting rod, 54, a clamping rod, 55, a third spring, 6, a cooling mechanism, 61, a storage tank, 62, a toothed plate, 63, a gear, 64, a rotating rod, 65, a through pipe, 66, a through rod, 67 and a fourth spring.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-6, the fixed tool device for a machine tool, which is convenient for replacing a tool, according to the present invention includes a placement seat 1, a transmission mechanism 2, an adjusting mechanism 3, an operating mechanism 4, a fastening mechanism 5 and a cooling mechanism 6, wherein the placement seat 1 for placing other mechanisms is internally provided with the transmission mechanism 2 which is convenient for moving the adjusting mechanism 3 and the operating mechanism 4, one side of the transmission mechanism 2 is provided with the adjusting mechanism 3 which is convenient for adjusting the operating mechanism 4, one side of the adjusting mechanism 3, which is far away from the transmission mechanism 2, is provided with the operating mechanism 4 which is convenient for implementing mechanical processing, the inside of the operating mechanism 4 is provided with the fastening mechanism 5 which is convenient for further limiting and placing the operating mechanism 4, and one side of the bottom of the transmission mechanism 2 is provided with the cooling mechanism which is convenient for dissipating heat and cooling the operating mechanism 4 and a processing workpiece when the device works And a mechanism 6.

Specifically, the transmission mechanism 2 includes a motor 21, a first screw 22, a limiting rod 23 and a transmission block 24, the motor 21 is arranged at a position close to the top end of one side of the placement base 1, one end of the motor 21 extends into the placement base 1 and is connected with the first screw 22, the first screw 22 is in threaded connection with the transmission block 24, the transmission block 24 is clamped inside the placement base 1, the limiting rod 23 is arranged inside the placement base 1, and the limiting rod 23 penetrates through the transmission block 24; when the device is used, a user can switch on the motor 21, the motor 21 rotates to drive the first screw rod 22 to rotate, the first screw rod 22 rotates to enable the transmission block 24 to move back and forth in the placing seat 1, and then the adjusting mechanism 3 and the operating mechanism 4 are driven to move, so that a corresponding machining process is conveniently carried out.

Specifically, the adjusting mechanism 3 includes a placement frame 31, a knob 32, a second screw 33, a connection block 34 and a first spring 35, the placement frame 31 is fixed at one end of the transmission block 24 away from the placement seat 1, the knob 32 is arranged at the top of the placement frame 31, the second screw 33 is connected to the bottom end of the knob 32, the second screw 33 is in threaded connection with the inside of the connection block 34, the connection block 34 is clamped inside the placement frame 31, the first spring 35 is connected to the bottom of the connection block 34, the bottom of the first spring 35 is fixed to the inner wall of the placement frame 31, and the first spring 35 is wound on the second screw 33; when the tool is used, the adjusting mechanism 3 is arranged on one side of the transmission mechanism 2, and the operating mechanism 4 is further conveniently adjusted through the corresponding lead screw transmission assembly, so that the tool can be conveniently and quickly operated to adjust during operation, and the tool is more convenient to use; namely: during actual processing, the user can be manual right the knob 32 rotates, the knob 32 rotates and drives the second screw rod 33 rotates, the second screw rod 33 rotates and makes the connecting block 34 is continuous settle the inside round trip movement of frame 31, first spring 35 is pressed simultaneously, thereby it is further convenient right operating device 4 adjusts for can convenient and fast's operation cutter adjust when the operation, make and use more convenient.

Specifically, the operating mechanism 4 includes a support 41, a tool body 42, a bolt 43, a second spring 44 and a fixture block 45, one end of the connecting block 34 away from the mounting frame 31 is connected with the support 41, the tool body 42 is arranged inside the support 41, the bolt 43 is arranged at the top of the support 41, the bottom of the bolt 43 is in threaded connection with the inside of the tool body 42, the insides of the bolt 43 close to two sides of the bottom end part are respectively connected with one second spring 44, the other end of the second spring 44 is connected with the fixture block 45, and the fixture block 45 is clamped inside the tool body 42; when the tool body 42 is used, the tool body 42 can be clamped inside the support 41, and then the bolt 43 is in threaded connection with the support 41 and the tool body 42, so that the tool body 42 is initially installed and fixed, and further, when the bolt 43 enters the bottom end of the tool body 42, the clamping block 45 is automatically clamped in a hole groove in the inner wall of the tool body 42 under the action of the second spring 44, so that the tool body 42 is further conveniently installed and fixed.

Specifically, the fastening mechanism 5 includes a rotating block 51, a second screw 52, a resisting rod 53, a clamping rod 54 and a third spring 55, the rotating block 51 is disposed at the top of the bolt 43, the second screw 52 is connected to the bottom end of the rotating block 51, the second screw 52 is in threaded connection with the inside of the resisting rod 53, the resisting rod 53 is clamped inside the bolt 43, one clamping rod 54 is respectively clamped on two sides of the bolt 43 near the bottom end, the third spring 55 is wound on the clamping rod 54, one end of the third spring 55 is fixed to the clamping rod 54, and the other end of the third spring 55 is fixed to the inner wall of the bolt 43; when the tool is used, the fastening mechanism 5 is arranged inside the operating mechanism 4, and the tool in the operating mechanism 4 is conveniently really limited and fixed through the corresponding lead screw transmission assembly and the corresponding spring clamping block assembly, and meanwhile, the limiting and fixing state is conveniently released at any time, so that the use of a plurality of fasteners is avoided, and the tool is more convenient to install and disassemble; namely: bolt 43 gets into inside back of cutter body 42, the user can be manual right change piece 51 rotates, change piece 51 rotates and drives second screw rod 52 rotates, second screw rod 52 rotates the order kelly 54 is continuous bolt 43 is inside to be removed, until to two kelly 54 extrudes the conflict, works as when fixture block 54 receives the extrusion conflict, third spring 55 contracts simultaneously, fixture block 54 can direct block extremely the inside of support 41, thereby it is convenient right cutter body 42 plays real spacing fixed effect, also is convenient for simultaneously relieve spacing fixed state at any time, has avoided the use of a plurality of fasteners, makes right cutter body 42's installation dismantlement is more convenient.

Specifically, the cooling mechanism 6 comprises a storage tank 61, a toothed plate 62, a gear 63, a rotating rod 64, a through pipe 65, a through rod 66 and a fourth spring 67, the middle part of one side of the bottom end of the placing seat 1 is fixed with the storage tank 61, one side of the bottom of the storage tank 61 is clamped with the through pipe 65, the through rod 66 is clamped inside the through pipe 65, the fourth spring 67 is wound on the side wall of the through rod 66, the top of the fourth spring 67 is fixed on the through rod 66, the bottom of the fourth spring 67 is fixed on the inner wall of the through pipe 65, the toothed plate 62 is fixed in the middle of the bottom end of the transmission block 24, the toothed plate 62 is clamped in the placing seat 1, and the gear 63 is engaged with the bottom of the toothed plate 62, the gear 63 is arranged inside the sidewall of the storage tank 61, the middle part of the gear 63 is connected with the rotating rod 64, and the rotating rod 64 extends to the inside of the storage tank 61; when the cooling device is used, the cooling mechanism 6 is arranged at the bottom of the placing seat 1, and through corresponding toothed plate gear transmission and an extrusion assembly similar to a cam, corresponding cooling liquid can be conveniently added to the operating mechanism 4 and a workpiece in the actual machining process, so that the operating mechanism 4 and the workpiece can be conveniently cooled and radiated, and the normal machining process is ensured; namely: in actual operation, along with the removal of transmission block 24, can drive pinion rack 62 removes simultaneously, and then drives gear 63 rotates, gear 63 rotates the drive bull stick 64 rotates, along with the rotation of bull stick 64, can be continuous right through pole 66 extrudees the conflict, fourth spring 67 is compressed simultaneously, works as the logical groove of through pole 67 bottom exposes completely to the outside back of storage tank 61, the inside coolant liquid that adds in advance of storage tank 61 will directly spill to on operating device 4 and the machined part, thereby conveniently can be right in the actual course of working add corresponding coolant liquid on operating device 4 and the machined part, make and to conveniently play cooling heat dissipation's effect operating device 4 and machined part, guarantee the normal of course of working.

When the tool is used, firstly, a user can manually rotate the knob 32, the knob 32 rotates to drive the second screw 33 to rotate, the second screw 33 rotates to enable the connecting block 34 to continuously move back and forth in the mounting frame 31, and the first spring 35 is simultaneously pressed, so that the operating mechanism 4 is further conveniently adjusted, the tool can be conveniently and quickly operated to adjust during operation, and the tool is more convenient to use; in actual operation, a user can switch on the motor 21, the motor 21 rotates to drive the first screw 22 to rotate, the first screw 22 rotates to enable the transmission block 24 to move back and forth in the placing seat 1, and then the adjusting mechanism 3 and the operating mechanism 4 are driven to move, so that a corresponding processing process is conveniently carried out; in addition, before using, a user can clamp the tool body 42 in the support 41, and then connect the bolt 43 in the support 41 and the tool body 42 by screw threads, so as to initially mount and fix the tool body 42, and further, when the bolt 43 enters the bottom end of the tool body 42, the clamping block 45 can be automatically clamped in the hole groove of the inner wall of the tool body 42 under the action of the second spring 44, so as to further facilitate mounting and fixing of the tool body 42; furthermore, after the bolt 43 enters the interior of the cutter body 42, a user can manually rotate the rotating block 51, the rotating block 51 rotates to drive the second screw rod 52 to rotate, the second screw rod 52 rotates to enable the clamping rods 54 to continuously move in the interior of the bolt 43 until the two clamping rods 54 are extruded and abutted, when the clamping blocks 54 are extruded and abutted, the third spring 55 contracts simultaneously, and the clamping blocks 54 can be directly clamped in the support 41, so that the cutter body 42 is conveniently limited and fixed really, the limiting and fixing state can be conveniently relieved at any time, the use of a plurality of fasteners is avoided, and the installation and the disassembly of the cutter body 42 are more convenient; simultaneously, along with the removal of transmission block 24, can drive pinion rack 62 and remove simultaneously, and then drive gear 63 and rotate, gear 63 rotates and drives bull stick 64 and rotate, along with bull stick 64's rotation, can be continuous to push away conflict logical pole 66, fourth spring 67 is compressed simultaneously, after logical groove when leading to 67 bottom exposes to storage tank 61's outside completely, the inside coolant liquid that adds in advance of storage tank 61 will directly spill to operating device 4 and machined part on, thereby the convenience can add corresponding coolant liquid on operating device 4 and machined part in actual course of working, make and conveniently play cooling heat dissipation's effect to operating device 4 and machined part, guarantee the normal of course of working.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A fixed cutter device convenient for replacing a cutter for a machine tool is characterized by comprising a placing seat (1), a transmission mechanism (2), an adjusting mechanism (3), an operating mechanism (4), a fastening mechanism (5) and a cooling mechanism (6), wherein the placing seat (1) used for placing other mechanisms is internally provided with the transmission mechanism (2) which is convenient for the adjusting mechanism (3) and the operating mechanism (4) to move, one side of the transmission mechanism (2) is provided with the adjusting mechanism (3) which is convenient for the operating mechanism (4) to adjust, one side of the adjusting mechanism (3) departing from the transmission mechanism (2) is provided with the operating mechanism (4) which is convenient for realizing mechanical processing, the inside of the operating mechanism (4) is provided with the fastening mechanism (5) which is convenient for the operating mechanism (4) to further play a limiting and placing role, one side of the bottom of the transmission mechanism (2) is provided with a cooling mechanism (6) which is convenient for the operating mechanism (4) and the processed workpiece to dissipate heat and cool when the device works.

2. A fixed tool device for a machine tool for facilitating replacement of a tool according to claim 1, wherein: drive mechanism (2) include motor (21), first screw rod (22), gag lever post (23) and transmission piece (24), the position that is close to the top on one side of arrangement seat (1) is equipped with motor (21), the one end of motor (21) extends to arrangement seat (1) is inside and is connected with first screw rod (22), first screw rod (22) threaded connection in the inside of transmission piece (24), transmission piece (24) block in the inside of arrangement seat (1), the inside of arrangement seat (1) is equipped with gag lever post (23), gag lever post (23) link up transmission piece (24).

3. A fixed tool device for a machine tool facilitating tool replacement according to claim 2, wherein: adjustment mechanism (3) are including settling frame (31), knob (32), second screw rod (33), connecting block (34) and first spring (35), driving block (24) deviate from the one end of settling seat (1) is fixed with settle frame (31), the top of settling frame (31) is equipped with knob (32), the bottom of knob (32) is connected with second screw rod (33), second screw rod (33) threaded connection in the inside of connecting block (34), just connecting block (34) block in settle frame (31) inside, the bottom of connecting block (34) is connected with first spring (35), the bottom of first spring (35) is fixed in the inner wall of settling frame (31), just first spring (35) twine in second screw rod (33).

4. A fixed tool device for a machine tool facilitating tool replacement according to claim 3, wherein: operating device (4) include support (41), cutter body (42), bolt (43), second spring (44) and fixture block (45), connecting block (34) deviate from the one end of settling frame (31) is connected with support (41), the inside of support (41) is equipped with cutter body (42), the top of support (41) is equipped with bolt (43), just the bottom threaded connection of bolt (43) in the inside of cutter body (42), the inside that bolt (43) are close to bottom position back of the body both sides is connected with one respectively second spring (44), the other end of second spring (44) is connected with fixture block (45), fixture block (45) block in the inside of cutter body (42).

5. A fixed tool device for a machine tool facilitating tool replacement according to claim 4, wherein: the fastening mechanism (5) comprises a rotating block (51), a second screw rod (52), a resisting rod (53), a clamping rod (54) and a third spring (55), the rotating block (51) is arranged at the top of the bolt (43), the bottom end of the rotating block (51) is connected with the second screw rod (52), the second screw rod (52) is in threaded connection with the inside of the resisting rod (53), the resisting rod (53) is clamped in the inside of the bolt (43), two sides of the bolt (43) close to the bottom end are respectively clamped with one clamping rod (54), the clamping rod (54) is wound with the third spring (55), one end of the third spring (55) is fixed to the clamping rod (54), and the other end of the third spring (55) is fixed to the inner wall of the bolt (43).

6. A fixed tool device for a machine tool facilitating tool replacement according to claim 2, wherein: the cooling mechanism (6) comprises a storage tank (61), a toothed plate (62), a gear (63), a rotating rod (64), a through pipe (65), a through rod (66) and a fourth spring (67), wherein the middle part of one side of the bottom end of the setting seat (1) is fixed with the storage tank (61), one side of the bottom of the storage tank (61) is clamped with the through pipe (65), the inside of the through pipe (65) is clamped with the through rod (66), the fourth spring (67) is wound on the side wall of the through rod (66), the top of the fourth spring (67) is fixed on the through rod (66), the bottom of the fourth spring (67) is fixed on the inner wall of the through pipe (65), the middle part of the bottom end of the transmission block (24) is fixed with the toothed plate (62), the toothed plate (62) is clamped in the inside of the setting seat (1), and the bottom of the toothed plate (62) is meshed with the gear (63), the gear (63) is arranged inside the side wall of the storage tank (61), the middle of the gear (63) is connected with the rotating rod (64), and the rotating rod (64) extends to the inside of the storage tank (61).