CN112894473A

CN112894473A - Numerical control turning machining center system and operation method thereof

Info

Publication number: CN112894473A
Application number: CN202110085541.9A
Authority: CN
Inventors: 钟金梅
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-22
Filing date: 2020-04-22
Publication date: 2021-06-04
Also published as: CN111451834A; CN111451834B

Abstract

The invention discloses a numerical control turning center system and an operation method thereof, the structure of the system comprises a fixed chuck plate, a turning device, a movable clamping device, a moving seat, a water receiving disc and a machine body, wherein one side of the machine body is provided with the fixed chuck plate, the other side of the machine body is provided with the movable clamping device, and the turning device is arranged between the fixed chuck plate and the movable clamping device, compared with the prior art, the numerical control turning center system has the beneficial effects that: through a bellows, the nut is vice, No. two bellows, a guide bar, No. two fixing bases, No. two guide bars, a fixing base, the lead screw, the combination setting of lead screw cooling mechanism, can hide the lead screw, avoid the lead screw to expose and take place the oxidation and rust outward, also can avoid adhesion dust impurity to form the dirt, make the lead screw need not wash, greatly reduced cost of maintenance, make the vice translation of nut smoothly unimpededly simultaneously, do benefit to the precision that improves the vice translation of nut, can dispel the heat to the lead screw, avoid the lead screw body to take place the thermal energy and influence the vice translation of nut, help the lathe work precision.

Description

Numerical control turning machining center system and operation method thereof

The invention relates to a divisional application of numerical control turning center equipment, which is filed on 22.4.2020, and has the application number of CN 202010319769.5.

Technical Field

The invention relates to the technical field of numerical control turning, in particular to a numerical control turning center system and an operation method thereof.

Background

Numerical control turning machining center equipment can process various surfaces of gyration, for example interior outer cylinder, interior outer conical surface, the screw thread, the slot, terminal surface and shaping face etc, the machining precision can reach IT8 an IT7, roughness Ra value is 1.6 ~ 0.8, the turning is often used for processing the part of single axis, the lead screw of current numerical control turning machining center equipment all exposes outside, the lead screw exposes outside for a long time not only easily to oxidize and rust, still can be stained with the dust and form the dirt, the dirt can influence the accuracy of the vice translation of nut, thereby can influence the precision of lathe work, the lead screw of gathering the dirt simultaneously needs to be dismantled and washs, and the washing degree of difficulty is higher, and the cleaning cost is high, rusty lead screw nut can make vice translation obstructed in addition, the event can lead to the guarantor's of lead to the lead.

Disclosure of Invention

The invention mainly aims to overcome the defects of the prior art and provides a numerical control turning machining center system and an operation method thereof.

The invention is realized by adopting the following technical scheme: a numerical control turning center system and an operation method thereof are disclosed, the structure of the system comprises a fixed chuck plate, a turning device, a movable clamping device, a moving seat, a water receiving disc and a machine body, wherein the fixed chuck plate is arranged on one side of the machine body, the movable clamping device is arranged on the other side of the machine body, the turning device is arranged between the fixed chuck plate and the movable clamping device, the turning device is connected with the moving seat, the moving seat is connected with the moving device, the moving device is connected with the machine body, and the water receiving disc is also arranged on the machine body;

the movable device comprises a corrugated pipe, a nut pair, a corrugated pipe, a guide rod, a second fixed seat, a second guide rod, a first fixed seat and a lead screw, one end of the lead screw is connected with the first fixed seat, the other end of the lead screw is connected with the second fixed seat, the nut pair is in threaded connection with the lead screw, one end of the nut pair is fixedly connected with the first fixed seat through the corrugated pipe, the other end of the nut pair is fixedly connected with the second fixed seat through the corrugated pipe, one side of the corrugated pipe and one side of the guide rod are matched with the first guide rod, the other side of the corrugated pipe and the second guide rod are connected, one end of the guide rod and one end of the second guide rod are connected with the first fixed seat, the other end of the guide rod and the second fixed seat are connected with the movable seat, and the first fixed seat and the second fixed seat are.

As a further optimization, the screw rod penetrates through the first corrugated pipe and the second corrugated pipe, and the first corrugated pipe and the second corrugated pipe are identical in composition structure.

As further optimization, the corrugated pipe comprises a corrugated pipe, guide rings, guide pieces and a first radiating fin, the guide rings are fixed on a long wave section of the corrugated pipe at intervals, the guide pieces are arranged at the centers of two sides of the guide rings, one guide piece is in clearance fit with the first guide rod, the other guide piece is in clearance fit with the second guide rod, the first radiating fin is uniformly distributed on the outer wall of the guide rings, the first radiating fin, the guide pieces and the guide rings are arranged in an integrated structure, the screw rod penetrates through the corrugated pipe and adopts clearance fit with the corrugated pipe, one end of the corrugated pipe is fixedly connected with the first fixing seat, and the other end of the corrugated pipe is fixedly connected with the nut pair.

As further optimization, the lead screw is including lead screw body, cooling tube, heat transfer pipe, direction annular, the cooling tube runs through in the heat transfer pipe, the heat transfer pipe runs through in the lead screw body and both adopt interference fit, the both ends of heat transfer pipe all are equipped with the direction annular, heat transfer pipe one end links to each other with a fixing base, and the other end meets with No. two fixing bases.

As further optimization, the mobile device still is equipped with lead screw cooling mechanism, lead screw cooling mechanism is including stirring wheel, rack translation board, piston head, liquid reserve pipe, No. two fin, bulge loop, sealing washer, liquid reserve pipe central point puts and is equipped with the stirring wheel, stir wheel and rack translation board and mesh mutually, place the liquid reserve pipe in the rack translation board in, the both ends of rack translation board all are fixed with the piston head, be equipped with the coolant liquid between the one end that rack translation board was kept away from to the piston head and the liquid reserve pipe, the end of liquid reserve pipe is equipped with sealing washer, bulge loop, direction annular clearance fit, sealing washer and cooling pipe seamless connection, the outer wall of liquid reserve pipe still equipartition has No. two fin.

As further optimization, the one end of stock solution pipe runs through in fixing base No. one, and the other end runs through in No. two fixing bases, the stock solution pipe is linked together with the cooling tube, the stock solution pipe also embeds there is the coolant liquid.

Advantageous effects

Compared with the prior art, the invention provides a numerical control turning center system and an operation method thereof, and the numerical control turning center system has the following beneficial effects:

(I) according to the invention, the first corrugated pipe, the second corrugated pipe and the nut pair are combined, so that the screw rod can be concealed, the screw rod is prevented from being exposed outside and being oxidized to rust, dust impurities are prevented from adhering to form dirt, the screw rod is not required to be cleaned, the maintenance cost is greatly reduced, the nut pair is enabled to translate smoothly without hindrance, and the translation precision of the nut pair is improved;

(II) the corrugated pipe is supported by combining the guide ring, the guide sheet, the first guide rod and the second guide rod, so that the corrugated pipe is effectively prevented from collapsing, the corrugated pipe is kept parallel to the screw rod, the corrugated pipe is prevented from being damaged, the screw rod rotates smoothly without resistance, and the translation of the nut pair is facilitated;

(III) the guide ring has a heat dissipation function by additionally arranging the heat dissipation fins, so that the corrugated pipe and the lead screw are favorably dissipated, and the problem that the translation precision of the nut pair is influenced by thermal expansion of the lead screw is further prevented;

according to the invention, (IV) through the combined arrangement of the screw rod cooling mechanism and the screw rod, the rack translation plate can translate through the rotation direction of the dial wheel, the piston head can push the cooling liquid through translation, the heated cooling liquid in the cooling pipe can be extruded, the cool cooling liquid can be injected into the cooling pipe again, and the extruded heated cooling liquid can be cooled and reused, so that the cooling liquid can be recycled, the heat dissipation of the screw rod body is further realized, the phenomenon that the translation of the nut pair is influenced due to the thermal expansion of the screw rod body is avoided, and the heat dissipation of the heated cooling liquid can be accelerated through the arrangement of the second heat dissipation fin.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural diagram of a numerical control turning center system and an operation method thereof according to the present invention.

Fig. 2 is a schematic structural diagram of a first operating state of the mobile device according to the present invention.

Fig. 3 is a schematic structural diagram of a second operating state of the mobile device according to the present invention.

Fig. 4 is a schematic structural diagram of a third operating state of the mobile device according to the present invention.

Fig. 5 is a schematic internal structure diagram of a first operating state of the mobile device according to the present invention.

Fig. 6 is a schematic structural diagram of an enlarged view of a in fig. 5.

Fig. 7 is a schematic structural view of a first bellows according to the present invention.

Fig. 8 is a schematic cross-sectional view of the screw rod of the present invention.

Fig. 9 is a schematic structural view of the screw rod and the screw rod cooling mechanism of the present invention.

Fig. 10 is a schematic structural view of an enlarged view of B in fig. 9.

Fig. 11 is a schematic structural view of an enlarged view of C in fig. 9.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

the automatic water-saving device comprises a fixed chuck plate 1, a turning device 2, a movable clamping device 3, a moving device 4, a moving seat 5, a water-receiving disc 6, a machine body 7, a first corrugated pipe 1E, a nut pair 2E, a second corrugated pipe 3E, a first guide rod 4E, a second fixed seat 5E, a second guide rod 6E, a first fixed seat 7E, a screw rod 8E, a corrugated pipe 1E1, a guide ring 1E2, a guide plate 1E3, a first cooling fin 1E4, a screw rod body 8E1, a cooling pipe 8E2, a heat transfer pipe 8E3, a guide ring groove 8E4, a screw rod cooling mechanism 9E, a dial wheel 9E1, a rack translation plate 9E2, a piston head 9E3, a liquid storage pipe 9E4, a second cooling fin 9E5, a convex ring 9E6 and a sealing ring 9E 7.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1, the present invention provides a numerical control turning center system and an operating method thereof: the structure of the machine comprises a fixed chuck plate 1, a turning device 2, a movable clamping device 3, a moving device 4, a moving seat 5, a water receiving disc 6 and a machine body 7, wherein the fixed chuck plate 1 is arranged on one side of the machine body 7, the movable clamping device 3 is arranged on the other side of the machine body 7, the turning device 2 is arranged between the fixed chuck plate 1 and the movable clamping device 3, the turning device 2 is connected with the moving seat 5, the moving seat 5 is connected with the moving device 4, the moving device 4 is connected with the machine body 7, and the water receiving disc 6 is further arranged on the machine body 7;

referring to fig. 2-5, the moving device 4 includes a first bellows 1E, a nut pair 2E, a second bellows 3E, a first guide rod 4E, a second fixing seat 5E, a second guide rod 6E, a first fixing seat 7E, and a screw rod 8E, one end of the screw rod 8E is connected to the first fixing seat 7E, the other end is connected to the second fixing seat 5E, the screw rod 8E is connected to the nut pair 2E by a screw thread, one end of the nut pair 2E is fixedly connected to the first fixing seat 7E through the first bellows 1E, the other end is fixedly connected to the second fixing seat 5E through the second bellows 3E, one side of the first bellows 1E and the second bellows 3E is matched with the first guide rod 4E, the other side of the second guide rod 6E, one end of the first guide rod 4E and the second guide rod 6E is connected to the first fixing seat 7E, the other end even No. two fixing base 5E, the vice 2E of nut is connected with removal seat 5, a fixing base 7E, No. two fixing base 5E all with organism 7 fixed connection, lead screw 8E runs through in a bellows 1E, No. two bellows 3E, the constitution structure of a bellows 1E is the same with No. two bellows 3E, and the combination setting of a bellows 1E, No. two bellows 3E and the vice 2E of nut can be hidden lead screw 8E, avoids lead screw 8E to expose and take place the oxidation and rust outward, also can avoid adhesion dust impurity to form the dirt for lead screw 85 need not wash, greatly reduced cost of maintenance makes the vice 2E translation of nut smoothly unimpeded simultaneously, does benefit to the precision that improves the vice 2E translation of nut.

Referring to fig. 6-7, the first corrugated tube 1E includes a corrugated tube 1E1, a guide ring 1E2, guide plates 1E3, and a first heat sink 1E4, the guide ring 1E2 is fixed on the long wave section of the corrugated tube 1E1 at intervals, the centers of both sides of the guide ring 1E2 are respectively provided with two guide plates 1E3, the two guide plates 1E3 are provided, one guide plate 1E3 is in clearance fit with the first guide rod 4E, the other guide plate 1E3 is in clearance fit with the second guide rod 6E, the outer wall of the guide ring 1E2 is further uniformly provided with a first heat sink 1E4, the first heat sink 1E4, the guide plate 1E3 and the guide ring 1E2 are integrated, the lead screw 8E penetrates through the corrugated tube 1E1 and is in clearance fit, one end of the corrugated tube 1E1 is fixedly connected to the first fixing seat 7E, and the other end is fixedly connected to the nut pair 2E, the utility model discloses a nut pair 2E's translation, including the lead screw, the lead screw 1E1, bellows 1E1 is parallel to lead screw 8E, and the setting of guide vane 1E3 and a guide bar 4E, No. two guide bars 6E's combination plays supporting role to bellows 1E1, prevents effectively that bellows 1E1 from taking place to cave in, makes bellows 1E1 keep parallel with lead screw 8E, avoids bellows 1E1 impaired, makes lead screw 8E's rotation smooth and easy without hindrance, does benefit to the translation of nut pair 2E, a fin 1E 4's setting has radiating function, does benefit to bellows 1E1, lead screw 85 and dispels the heat, further prevents that lead screw 85 from taking place the thermal expansion and influence.

Example 2

Referring to fig. 8, the screw 8E includes a screw body 8E1, a cooling tube 8E2, a heat transfer tube 8E3, and a guide ring groove 8E4, the cooling tube 8E2 penetrates through the heat transfer tube 8E3, the heat transfer tube 8E3 penetrates through the screw body 8E1, the two heat transfer tube and the heat transfer tube adopt interference fit, the guide ring grooves 8E4 are respectively disposed at two ends of the heat transfer tube 8E3, one end of the heat transfer tube 8E3 is connected to the first fixing seat 7E, and the other end is connected to the second fixing seat 5E, so that the heat dissipation and cooling can be performed on the screw body 8E1, and the screw body 8E1 is prevented from thermal expansion to affect the translation of the nut pair 2E.

Referring to fig. 9-11, the moving device 4 is further provided with a lead screw cooling mechanism 9E, the lead screw cooling mechanism 9E includes a toggle wheel 9E1, a rack translation plate 9E2, a piston head 9E3, a liquid storage tube 9E4, a second heat sink 9E5, a convex ring 9E6 and a sealing ring 9E7, the center of the liquid storage tube 9E4 is provided with a toggle wheel 9E1, the toggle wheel 9E1 is engaged with the rack translation plate 9E2, the rack translation plate 9E2 is disposed in the liquid storage tube 9E4, both ends of the rack translation plate 9E2 are fixed with the piston head 9E3, a cooling liquid is disposed between one end of the piston head 9E3 far away from the rack translation plate 9E2 and the liquid storage tube 9E4, the end of the liquid storage tube 9E4 is provided with a sealing ring 9E7 and a convex ring 9E6, the ring 9E6 is movably matched with a guide groove 8E 6867, and the sealing ring 2 is connected with the cooling tube 2, liquid storage tube 9E 4's outer wall still equipartition has No. two fin 9E5, liquid storage tube 9E 4's one end is run through in fixing base 7E No. one, and the other end runs through in No. two fixing base 5E, liquid storage tube 9E4 is linked together with cooling tube 8E2, liquid storage tube 9E4 also embeds there is the coolant liquid for the coolant liquid of being heated in cooling tube 8E2 can be extruded, and cool coolant liquid can pour into cooling tube 8E2 once more in, the heated coolant liquid of being extruded can be cooled and reuse, thereby the coolant liquid obtains cyclic utilization, further plays the heat dissipation to lead screw body 8E 1.

The working principle of the invention is as follows: the screw rod 8E can drive the nut pair 2E to translate when rotating, the translation of the nut pair 2E can generate pressure on the first corrugated pipe 1E, and generate pulling force on the second corrugated pipe 3E, or generate pulling force on the first corrugated pipe 1E, and generate pressure on the second corrugated pipe 3E, the corrugated pipe 1E1 is stressed, and then translates under the guiding action of the guide sheet 1E3, the first guide rod 4E and the second guide rod 6E, because of the matching of the first guide rod 4E and the second guide rod 6E with the guide sheet 1E3, the corrugated pipe 1E1 is supported, the corrugated pipe 1E1 is effectively prevented from collapsing, the corrugated pipe 1E1 can be kept parallel to the screw rod 8E, the corrugated pipe 1E1 is prevented from being damaged, the smooth rotation of the screw rod 8E is facilitated, the translation of the nut pair 2E is facilitated, and the first corrugated pipe 1E and the second corrugated pipe 3E can hide the screw rod 8E, the lead screw 8E is prevented from being exposed outside and being oxidized to rust, dust impurities can be prevented from adhering to form dirt, the lead screw 8E is not required to be cleaned, the maintenance cost is greatly reduced, meanwhile, the nut pair 2E is enabled to translate smoothly, the translation precision of the nut pair 2E is improved, the cooling liquid in the cooling pipe 8E2 can be used for cooling the lead screw body 8E1, the lead screw body 8E1 is prevented from being expanded due to heat to influence the translation precision of the nut pair 2E, the rack translation plate 9E2 is enabled to translate through the rotation direction of the dial wheel 9E1, the piston head 9E3 can push the cooling liquid through translation, the heated cooling liquid in the cooling pipe 8E2 is enabled to be extruded, the cold cooling liquid can be injected into the cooling pipe 8E2 again, the extruded heated cooling liquid is enabled to be cooled and reused, the cooling liquid is enabled to be recycled, and the heat dissipation of the lead screw body 8E1 is further achieved, the phenomenon that the translation of the nut pair 2E is influenced by the thermal expansion of the lead screw body 8E1 is avoided, and the heat dissipation of the heated cooling liquid can be accelerated by the arrangement of the second cooling fin 9E 5.

In summary, the technical progress obtained by the invention compared with the prior art is as follows: according to the invention, through the combination arrangement of the first corrugated pipe, the nut pair, the second corrugated pipe, the first guide rod, the second fixing seat, the second guide rod, the first fixing seat, the lead screw and the lead screw cooling mechanism, the lead screw can be concealed, the lead screw is prevented from being exposed to the outside and being oxidized and rusted, dust and impurities are prevented from adhering to form dirt, the lead screw is not required to be cleaned, the maintenance cost is greatly reduced, meanwhile, the nut pair is enabled to translate smoothly and unimpededly, the translation precision of the nut pair is improved, the lead screw can be cooled, the translation of the nut pair is prevented from being influenced by the thermal expansion of a lead screw body, and the turning precision is facilitated.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a numerical control turning machining center equipment, its structure is including deciding (1) the (2) chuck, moving, presss from both sides device (3), mobile device (4), removes seat (5), water collector (6), organism (7) one side is equipped with decides (1) the (1) chuck, and the opposite side is equipped with and moves and presss from both sides device (3), decide (1) chuck and move and press from both sides turning device (2) that are equipped with between device (3) and are connected with removing seat (5), remove seat (5) and link in mobile device (4) that meet with organism (7), organism (7) still are equipped with water collector (6), its characterized in that:

the moving device (4) comprises a first corrugated pipe (1E), a nut pair (2E), a second corrugated pipe (3E), a first guide rod (4E), a second fixing seat (5E), a second guide rod (6E), a first fixing seat (7E) and a lead screw (8E), the lead screw (8E) is connected with the first fixing seat (7E) and the second fixing seat (5E), the lead screw (8E) is provided with the nut pair (2E), one end of the nut pair (2E) is fixedly connected with the first fixing seat (7E) through the first corrugated pipe (1E), the other end of the nut pair (2E) is fixedly connected with the second fixing seat (5E) through the second corrugated pipe (3E), the first corrugated pipe (1E) and the second corrugated pipe (3E) are matched with the first guide rod (4E) and the second guide rod (6E), and the nut pair (2E) is connected with the moving seat (5), the first fixed seat (7E) and the second fixed seat (5E) are fixedly connected with the machine body (7);

the screw rod (8E) penetrates through the first corrugated pipe (1E) and the second corrugated pipe (3E), and the first corrugated pipe (1E) and the second corrugated pipe (3E) are identical in structure.

2. The numerical control turning machining center apparatus according to claim 1, characterized in that: a bellows (1E) including bellows (1E1), guide ring (1E2), guide plate (1E3), fin (1E4), bellows (1E1) are fixed with guide ring (1E2), guide ring (1E2) are equipped with two the same guide plate (1E3), one guide plate (1E3) and a guide bar (4E) cooperation, another guide plate (1E3) cooperate No. two guide bars (6E), guide ring (1E2) equipartition has a fin (1E4), lead screw (8E) run through in bellows (1E1), bellows (1E1) one end and a fixing base (7E) link firmly, the other end and the vice (2E) rigid coupling of nut.

3. The numerical control turning machining center apparatus according to claim 1, characterized in that: lead screw (8E) is including lead screw body (8E1), cooling tube (8E2), heat transfer pipe (8E3), direction annular (8E4), cooling tube (8E2) run through in heat transfer pipe (8E3) with lead screw body (8E1) complex, heat transfer pipe (8E3) are equipped with direction annular (8E4), heat transfer pipe (8E3) are connected with fixing base (7E), No. two fixing bases (5E).

4. The numerical control turning machining center apparatus according to claim 1, characterized in that: the moving device (4) is also provided with a screw rod cooling mechanism (9E), the screw rod cooling mechanism (9E) comprises a toggle wheel (9E1), a rack translation plate (9E2), a piston head (9E3), a liquid storage pipe (9E4), a second cooling fin (9E5), a convex ring (9E6) and a sealing ring (9E7), the liquid storage pipe (9E4) is provided with a poking wheel (9E1) matched with the rack translation plate (9E2), a piston head (9E3) is fixed on the rack translation plate (9E2), a cooling liquid is arranged in the liquid storage pipe (9E4), the tail end of the liquid storage pipe (9E4) is provided with a sealing ring (9E7) and a convex ring (9E6), bulge loop (9E6) and guide ring groove (8E4) cooperation, sealing washer (9E7) are connected with cooling tube (8E2), No. two fin (9E5) are still equipartition to stock solution pipe (9E 4).

5. The numerical control turning machining center apparatus according to claim 4, characterized in that: stock solution pipe (9E4) one end is run through in fixing base (7E), and the other end runs through in No. two fixing bases (5E), stock solution pipe (9E4) and cooling tube (8E2) intercommunication, stock solution pipe (9E4) also embeds there is the coolant liquid.

6. A CNC turning center system and method of operating same according to any one of claims 1-5, wherein:

the screw rod (8E) can drive the nut pair (2E) to translate when rotating, the nut pair (2E) can generate pressure on the first corrugated pipe (1E) and generate tension on the second corrugated pipe (3E) or generate tension on the first corrugated pipe (1E) and generate pressure on the second corrugated pipe (3E), and the corrugated pipe (1E1) is stressed and translates under the guiding action of the guide piece (1E3), the first guide rod (4E) and the second guide rod (6E);

due to the matching of the first guide rod (4E) and the second guide rod (6E) with the guide sheet (1E3), thereby supporting the corrugated pipe (1E1), effectively preventing the corrugated pipe (1E1) from collapsing, so that the corrugated pipe (1E1) can be kept parallel to the screw rod (8E) to avoid the damage of the corrugated pipe (1E1), so that the screw rod (8E) rotates smoothly without resistance, the translation of the nut pair (2E) is facilitated, the first corrugated pipe (1E) and the second corrugated pipe (3E) can conceal the screw rod (8E), thereby avoiding the screw rod (8E) from being exposed outside to be oxidized and rusted, also avoiding dust and impurities from adhering to form dirt, leading the screw rod (8E) not to be cleaned, greatly reducing the maintenance cost, meanwhile, the nut pair (2E) can translate smoothly without resistance, so that the translation precision of the nut pair (2E) is improved;

the cooling liquid in the cooling pipe (8E2) can cool the screw rod body (8E1), the screw rod body (8E1) is prevented from being expanded due to heat to influence the translation precision of the nut pair (2E), the rack translation plate (9E2) is enabled to translate through the rotation direction of the dial wheel (9E1), the piston head (9E3) can push the cooling liquid through translation, the heated cooling liquid in the cooling pipe (8E2) can be extruded out, the cold cooling liquid can be injected into the cooling pipe (8E2) again, the extruded heated cooling liquid can be cooled and reused, and the cooling liquid can be recycled;

the screw rod body (8E1) is further radiated, the phenomenon that the translation of the nut pair (2E) is influenced due to the thermal expansion of the screw rod body (8E1) is avoided, and the second radiating fins (9E5) are arranged to accelerate the radiation of the heated cooling liquid.