CN211840329U

CN211840329U - Transmission system of planer type milling machine workbench

Info

Publication number: CN211840329U
Application number: CN202020438434.0U
Authority: CN
Inventors: 顾立柱; 李冬
Original assignee: Anhui Pengrui Intelligent Technology Co ltd
Current assignee: Anhui Pengrui Intelligent Technology Co ltd
Priority date: 2020-03-30
Filing date: 2020-03-30
Publication date: 2020-11-03
Anticipated expiration: 2030-03-30

Abstract

The utility model discloses a planer type milling machine workstation transmission system belongs to planer type milling machine technical field. The outer side end of the middle bearing of the utility model is provided with an outer side bearing waterproof spacer ring, the position where the outer side bearing waterproof spacer ring is attached to the bearing gland is provided with a plurality of groups of grooves which correspond up and down, and the plurality of groups of grooves form a mechanical seal stop ring; the bottom of the bearing gland positioned outside the tail end seat is provided with a bearing gland water leakage hole communicated with the outside, and the bottom of the inner side of the tail end seat is provided with a tail end seat water leakage hole penetrating through; the both sides of every slide rail of milling machine lathe bed all are provided with crashproof seat, and crashproof seat is provided with crashproof buffer unit towards the inboard of workstation. The utility model aims to overcome the not enough of current lathe drive disk assembly sealed effect poor and easy great striking of taking place when the motion, not only can stop cutting iron fillings, cutting fluid and cutting oil to the invasion of bearing basically, can also avoid transmission system to receive great striking.

Description

Transmission system of planer type milling machine workbench

Technical Field

The utility model relates to a milling machine technical field, more specifically say, relate to a planer type milling machine workstation transmission system.

Background

As is well known, the screw rod is an important part of a machine tool transmission system, and in the machining process, the cutting iron chips mixed with oil and water splashes around in the machining process, and easily flows downwards to the inside of the bearing along the screw rod, so that the screw rod is one of main reasons for causing rusting and damage of the bearing, and the normal use of the machine tool is influenced. But the sealing structure of the transmission system of the existing machine tool is simple, and the situation that cutting scrap iron, cutting fluid and cutting oil enter the bearing cannot be completely avoided.

Meanwhile, during cutting movement of the machine tool, cutting processing is completed through mutual movement between the two sliding saddles, but severe impact actions occur between the motor bases and the tail end bases on the screw rod nut surface and the two ends in the cutting movement process of the machine tool, so that a screw rod transmission system is easily subjected to large impact, the transmission precision and the movement life of the screw rod are influenced, and further the operation stability and the processing precision of the machine tool are influenced.

Therefore, the design of a transmission system of the planer type milling machine workbench which has good sealing effect and can be used for anti-collision buffering is a target pursued in the industry all the time.

Through retrieval, a large number of patents have been published on the waterproof sealing structure of the milling machine transmission part, such as the Chinese patent application number: 2018201993585, the name of invention creation is: the application discloses a sealing structure of a three-axis transmission system of a machining center, which comprises a screw rod, a tail end bearing chamber at the left end of the screw rod, a motor end bearing chamber at the right end of the screw rod, a sealing bearing between the tail end bearing chamber and the motor end bearing chamber as well as between the motor end bearing chamber and the screw rod, locking nuts at two ends of the screw rod, a spacer ring at the inner side of the locking nut, a gland at the outer ring of the spacer ring and the sealing structure; the sealing structure comprises a tail end dust cover, a left sealing ring, a left labyrinth oil slinger, a right sealing ring, a sealing bearing, a right sealing ring and a waterproof cover plate of a motor end bearing chamber. The scheme is a good exploration for the waterproof sealing structure of the milling machine transmission part, but still has a further promotion space, and the research on the waterproof sealing structure of the milling machine transmission part in the industry is never stopped.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved by the utility model

An object of the utility model is to overcome the not enough of current machine tool drive disk assembly sealed effect poor and easy great striking of taking place when the motion, provide a planer-type milling machine workstation transmission system, not only can stop cutting iron fillings, cutting fluid and cutting oil to the invasion of bearing basically, can also avoid transmission system to receive great striking.

2. Technical scheme

In order to achieve the above purpose, the utility model provides a technical scheme does:

the utility model discloses a planer-type milling machine workstation transmission system, the workstation is reciprocating motion under the transmission system drive, wherein transmission system includes the lead screw, be provided with screw-nut on the lead screw, the both ends of lead screw are provided with motor cabinet and tail end seat respectively, motor cabinet and tail end seat are inside all to be equipped with the bearing with lead screw matched with, bearing outside end is provided with outside bearing waterproof spacer ring, wherein the outer tip of the bearing that is located tail end seat one side is provided with bearing gland, the bearing both ends that are located one side of motor cabinet all are provided with bearing gland, and the position that outside bearing waterproof spacer ring and bearing gland laminated mutually all is provided with the recess that the multiunit corresponds from top to bottom, multiunit recess constitutes mechanical seal barrier ring; the bottom of the bearing gland positioned outside the tail end seat is provided with a bearing gland water leakage hole communicated with the outside, and the bottom of the inner side of the tail end seat is provided with a tail end seat water leakage hole penetrating through;

milling machine lathe bed has two slide rails along width direction parallel arrangement, the workstation bottom is provided with the slider with slide rail matched with, wherein the both sides of every slide rail all are provided with crashproof seat, crashproof seat is provided with crashproof buffer unit towards the inboard of workstation, the distance between screw-nut one side nut terminal surface and the tail end seat is L1, the distance between screw-nut opposite side nut terminal surface and the motor cabinet is L2, and L1 is greater than the distance L3 between workstation one terminal surface and the homonymy crashproof buffer unit, L2 is greater than the distance L4 between another terminal surface of workstation and the homonymy crashproof buffer unit.

As a further improvement, the bearing cover bottom positioned at the inner side and the outer side of the motor seat is provided with a bearing cover water leakage hole communicated with the outside.

As a further improvement, the inner side end of the screw rod close to the tail end seat is provided with a V-shaped end surface oil seal, the inner circle sleeve of the V-shaped end surface oil seal is arranged at the periphery of the screw rod, and the outer circle of the V-shaped end surface oil seal is laminated with the inner side of the tail end seat.

As a further improvement, the medial extremity that the lead screw is close to the motor cabinet is provided with V type terminal surface oil blanket, and the inner circle cover of V type terminal surface oil blanket is established in the lead screw periphery, and the outer lane of V type terminal surface oil blanket is laminated mutually with the bearing gland inboard.

As a further improvement, the end cover on the lead screw near the tail end seat side is provided with a lead screw waterproof cover, and the lead screw waterproof cover is arranged outside the bearing gland.

As a further improvement, the bearing inner side end part located on one side of the tail end seat is provided with an inner side bearing waterproof spacer ring, wherein the inner side bearing waterproof spacer ring is provided with a plurality of groups of grooves with the position of the tail end seat, and the plurality of groups of grooves form a mechanical sealing stop ring.

As a further improvement of the utility model, a bearing positioned at one side of the tail end seat is fixed inside the tail end seat through a bearing seat, and an O-shaped sealing ring I is arranged between a bearing gland outside the tail end seat and the bearing seat; an O-shaped sealing ring II is arranged between the outer bearing waterproof spacer ring positioned at one end of the tail end seat and the screw rod; and an O-shaped sealing ring III is arranged between the inner side bearing waterproof spacer ring positioned at one end of the tail end seat and the screw rod.

As a further improvement of the utility model, an O-shaped sealing ring IV and an O-shaped sealing ring V are respectively arranged between the bearing gland at the inner end and the outer end of the motor base and the motor base; and an O-shaped sealing ring VI is arranged between the bearing waterproof spacer ring at the outer side of one side of the motor base and the screw rod.

As a further improvement, the motor cabinet top is provided with the motor cabinet waterproof cover, and bending down all around of motor cabinet waterproof cover forms sealed manger plate limit, and the manger plate limit extends to the bearing gland outside.

As a further improvement, the anti-collision seat is including setting up the laminating section at the slide rail tip, and the laminating section is fixed on the lathe bed, and the one end that the workstation was kept away from to the laminating section upwards extends and is provided with the support section, and wherein the inboard of support section orientation workstation is provided with anticollision buffer unit.

3. Advantageous effects

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:

(1) the utility model discloses a planer type milling machine workstation transmission system, at first use motor cabinet waterproof cover and tail end seat waterproof cover installed on the bearing room to block most of large granule iron fillings and cutting fluid, cutting oil, prevent it from entering the bearing room by the top and all around, constitute first waterproof sealing structure; the reuse is fixed at the lead screw waterproof cover of lead screw tip, lock nut, and the V type terminal surface oil blanket in the embedding lead screw outside, filter a few tiny iron fillings and the oil water mixture that gets into, constitute second way waterproof sealing structure, then utilize 6O type sealing washers and the mechanical seal stop ring of installing at two bearing room both ends to block mixed profit and tiny iron fillings and get into, and utilize tail end seat hole and bearing gland hole that leaks to guide oil water mixture and tiny iron fillings to the transmission part outside, prevent it to continue to flow toward the bearing direction, constitute third way waterproof sealing structure, utilize the bearing waterproof spacer ring of bearing self to stop tiny iron fillings and waste water completely at last, the invasion of waste oil. Through the left and right double sealing of the bearings on the two sides of the screw rod, the heavy blockage forms a three-dimensional all-dimensional dustproof and waterproof sealing structure, the positioning precision and stability of a transmission part are protected, the service life of a machine tool is prolonged, and the fault rate and the maintenance cost of the machine tool are reduced.

(2) The utility model discloses a planer-type milling machine workstation transmission system, bearing outside end are provided with the waterproof spacer ring of outside bearing, prevent that water, oil from continuing to flow in toward the bearing is inside to can guide water, oil to the bearing below to flow, adopted sealed bearing, form the one deck protection of the most inboard to the bearing, improved the life of bearing. The positions where the outer side bearing waterproof spacer ring and the bearing gland are attached to each other are provided with a plurality of groups of grooves which correspond up and down, and the grooves form a mechanical seal stop ring. In the movement process of the machine tool, the mechanical seal blocking ring forms a mechanical seal state, can block the invasion of the scrap iron, cutting fluid and cutting oil which move at high speed to the bearing in a working state, can better protect the bearing, not only improves the positioning precision and the stability of a transmission part of the machine tool, but also reduces the fault rate and the maintenance cost of the machine tool.

(3) The utility model discloses a planer-type milling machine workstation transmission system, the bearing gland bottom that is located the tail end seat outside is seted up with external communicating bearing gland hole that leaks, and the tail end seat hole that leaks that runs through is seted up to the inboard bottom of tail end seat. The design in bearing gland hole and the tail end seat hole that leaks not only can avoid small part to get into the indoor iron fillings of cutting of bearing, cutting fluid and cutting oil and accumulate in the tail end seat bearing room, prevents it to continue to flow toward the bearing direction, can also improve drive disk assembly's sealing performance, avoids influencing drive disk assembly's location precision and machining precision.

(4) The utility model discloses a planer-type milling machine workstation transmission system, the both sides of every slide rail all are provided with the anticollision seat, the anticollision seat is provided with anticollision buffer unit towards the inboard of workstation, when the workstation is reciprocating motion about under transmission's drive, the striking action takes place between workstation both sides terminal surface and the anticollision buffer unit of installing on the slide rail, because planer-type milling machine's moving part weight is big, inertia is big, the striking dynamics is big, adopt modified anticollision structure, protection lead screw and screw-nut that can be better, protect whole lead screw transmission system, avoid transmission system to receive great striking, transmission system's transmission precision and motion stability have been improved.

Drawings

Fig. 1 is a schematic front view of a transmission system according to the present invention;

FIG. 2 is a schematic top view of the transmission system of the present invention;

FIG. 3 is a schematic cross-sectional view of section G-G of FIG. 2;

FIG. 4 is an enlarged view of the structure at I in FIG. 3;

FIG. 5 is an enlarged view of the structure at II in FIG. 3;

FIG. 6 is a schematic structural view of a worktable according to the present invention;

FIG. 7 is a schematic top view of the structure of FIG. 6;

FIG. 8 is a schematic structural view of a transmission system according to the present invention;

FIG. 9 is an enlarged schematic view of region H of FIG. 6;

fig. 10 is a schematic structural diagram of the oil buffer according to the present invention.

The reference numerals in the schematic drawings illustrate:

100. a work table; 200. a bed body; 210. an anti-collision seat; 211. a fitting section; 212. a support section; 220. an anti-collision buffer unit; 230. a slide rail; 240. a hydraulic shock absorber; 201. an inner barrel; 202. an outer cylinder; 203. an oil filler hole; 241. a silencing sleeve; 242. a collided head; 243. a buffer shaft; 244. oil sealing; 245. a bearing; 246. an oil return hole; 247. a piston; 248. a spring; 249. an oil drain hole;

600. a transmission system; 610. a screw rod; 601. a first O-shaped sealing ring; 602. an O-shaped sealing ring II; 603. an O-shaped sealing ring III; 604. an O-shaped sealing ring IV; (ii) a 05. An O-shaped sealing ring V; 606. an O-shaped sealing ring six; 607. a V-shaped end face oil seal; 610. a screw rod; 611. a feed screw nut; 612. a nut end face; 620. a motor base; 621. a waterproof cover of the motor base; 630. a tail end seat; 631. a tail end seat waterproof cover; 632. a tail seat water leakage hole; 633. a water baffle; 640. a bearing gland; 641. a water leakage hole of the bearing gland; 650. a bearing; 651. a bearing seat; 652. the outer bearing waterproof spacer ring; 653. the inner side bearing waterproof spacer ring; 660. a mechanical seal barrier ring; 690. waterproof cover of lead screw.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The present invention will be further described with reference to the following examples.

Example 1

Referring to fig. 1 to 5, in the transmission system of a planer type milling machine table of this embodiment, the table 100 in this embodiment is driven by the transmission system 600 to reciprocate, wherein the transmission system 600 includes a screw 610, a motor base 620 and a tail end base 630 are respectively disposed at two ends of the screw 610, bearings 650 matched with the screw 610 are disposed inside the motor base 620 and the tail end base 630, and the bearings 650 located at one side of the tail end base 630 are fixed inside the tail end base 630 through a bearing block 651. In this embodiment, an outer bearing waterproof spacer 652 is disposed at an outer end of the bearing 650 to prevent water and oil penetrating into the motor mount 620 and the tail mount 630 from continuously flowing into the bearing 650 and guide the water and oil to flow below the bearing 650, and by using the sealing bearing 650, an innermost layer of protection is formed on the bearing 650, thereby improving the sealing performance and the service life of the bearing 650. The outer end of the bearing 650 located on one side of the tail end seat 630 is provided with a bearing gland 640, the two ends of the bearing 650 located on one side of the motor seat 620 are provided with the bearing glands 640, and the positions where the outer side bearing waterproof spacer ring 652 is attached to the bearing glands 640 are provided with a plurality of groups of grooves corresponding up and down, the plurality of groups of grooves form a mechanical seal stop ring 660, namely, a plurality of groups of annular grooves are formed between the outer side bearing waterproof spacer ring 652 and the bearing glands 640 in a circumferential direction. Specifically, as shown in fig. 4 and 5, a bearing cover 640 is disposed on the left side of the bearing 650 on the left side of the lead screw 610 in this embodiment, and bearing covers 640 are disposed on the left and right sides of the bearing 650 on the right side of the lead screw 610, as shown in fig. 4, a plurality of sets of grooves corresponding to each other up and down are disposed at the position where the bearing cover 640 on the left side of the left bearing 650 in this embodiment is attached to the outer bearing waterproof spacer 652 on the left side of the left bearing 650, and the plurality of sets of grooves cooperate to form a mechanical seal blocking ring 660. Meanwhile, an inner side bearing waterproof spacer ring 653 is arranged at the inner side end of the bearing 650 positioned on one side of the tail end seat 630, wherein a plurality of groups of grooves are formed in the positions where the inner side bearing waterproof spacer ring 653 and the tail end seat 630 are attached to each other, and the plurality of groups of grooves form a mechanical seal stop ring 660. Specifically, in this embodiment, one side of the tail end base 630 is attached to the bearing seat 651, the other side of the tail end base 630 is attached to the outer periphery of the inner bearing waterproof spacer 653, wherein a plurality of concave grooves are formed at the position where the inner bearing waterproof spacer 653 is attached to the tail end base 630, that is, a plurality of sets of semi-annular grooves are formed between the inner bearing waterproof spacer 653 and the tail end base 630 around the circumferential direction, and the plurality of sets of semi-annular grooves form the mechanical seal stop ring 660.

Similarly, as shown in fig. 5, in this embodiment, a plurality of sets of grooves corresponding up and down are provided at a position where the bearing gland 640 on the right side of the right side bearing 650 is attached to the outer bearing waterproof spacer 652 on the right side of the right side bearing 650, and the mechanical seal stop ring 660 is also formed by the cooperation of the plurality of sets of annular grooves. In addition, a plurality of inward concave grooves are arranged at the position where the bearing gland 640 at the left side of the right bearing 650 is attached to the screw 610, and a semi-annular mechanical seal blocking ring 660 is formed by the plurality of grooves. In the movement process of the machine tool, the mechanical seal blocking ring 660 is in a mechanical seal state, and can block scrap iron, cutting fluid and cutting oil which move at high speed in the working state from intruding into the bearing 650 from gaps among the bearing gland 640, the outer side bearing waterproof spacer ring 652, the tail end seat 630, the inner side bearing waterproof spacer ring 653, the bearing gland 640 and the lead screw 610, so that the bearing 650 can be better protected, the positioning precision and the stability of a transmission part of the machine tool are improved, and the fault rate and the maintenance cost of the machine tool are reduced.

As shown in fig. 4, in the present embodiment, the bottom of the bearing cover 640 located outside the tail seat 630 is provided with a bearing cover water leakage hole 641 communicating with the outside, and the bottom of the inside of the tail seat 630 is provided with a tail seat water leakage hole 632 penetrating through the bearing cover 640, and the tail seat water leakage hole 632 is communicated with the outside. Specifically, in this embodiment, the outer bearing water-proof spacer 652 is provided with a convex section protruding outwards, the bearing gland 640 at the left side of the tail end seat 630 is provided with a concave section corresponding to the convex section, the bottom of the groove section is provided with a bearing gland water leakage hole 641 communicated with the outside, as shown by the arrow in fig. 4, scrap iron, cutting fluid and cutting oil permeate into the bearing gland water leakage hole 641 from the gap between the outer bearing waterproof ring 652 and the left bearing gland 640, and is discharged through the bearing gland leakage hole 641. similarly, the bottom of the right side of the tail end seat 630 is provided with a tail end seat leakage hole 632 communicated with the outside, the tail end seat leakage hole 632 is arranged on the left side of the right mechanical seal stop ring 660, when a small amount of scrap iron, cutting fluid and cutting oil permeate into the tail seat water leakage holes 632 from the gap between the screw 610 and the right tail seat 630, the scrap iron, the cutting fluid and the cutting oil are discharged through the tail seat water leakage holes 632. Bearing gland hole 641 and tail end seat hole 632 that leaks's design not only can further avoid small part to get into the indoor iron fillings of cutting, cutting fluid and the cutting oil of bearing and guide its outside discharge in tail end seat 630 bearing chamber accumulation, prevent that it continues to flow toward bearing 650 direction, can also improve drive disk assembly's sealing performance, avoid influencing drive disk assembly's location precision and machining precision.

As shown in fig. 5, the bottom of the bearing cover 640 close to the inner and outer sides of the motor base 620 in this embodiment is provided with a through bearing cover water leakage hole 641. A bearing cover water leakage hole 641 is formed in the lower portion of the screw 610 in the bearing cover 640 on the left side of the motor base 620, and scrap iron, cutting fluid and cutting oil flow into the bearing cover water leakage hole 641 from a gap between the screw 610 and the bearing cover 640 on the left side and are discharged through the bearing cover water leakage hole 641. In the same way, a bearing cover water leakage hole 641 is formed in the lower portion of the screw 610 in the bearing cover 640 on the right side of the motor base 620, and scrap iron, cutting fluid and cutting oil flow into the bearing cover water leakage hole 641 from a gap between the bearing waterproof spacer ring 652 on the right side and the bearing cover 640 on the right side and are discharged through the bearing cover water leakage hole 641. The design of bearing gland hole 641 that leaks can avoid small part entering bearing chamber's cutting iron fillings, cutting fluid and cutting oil to accumulate in motor cabinet 620 bearing chamber, prevents it to continue to flow toward bearing 650 direction, avoids causing bearing 650 to damage, has further improved bearing 650's life.

In this embodiment, a V-shaped end face oil seal 607 is disposed at the end of the inner side of the screw 610 close to the tail end seat 630, the inner ring of the V-shaped end face oil seal 607 is sleeved on the periphery of the screw 610, and the outer ring of the V-shaped end face oil seal 607 is attached to the inner side of the tail end seat 630. Specifically, as shown in fig. 4, in this embodiment, a V-shaped end face oil seal 607 is disposed between the left side of the screw 610 and the right side end of the tail end seat 630, and the inner ring and the outer ring of the V-shaped end face oil seal 607 are respectively attached to the outer circumference of the screw 610 and the inner side of the tail end seat 630, so as to form a further heavy sealing protection for the bearing 650, and further prevent scrap iron, cutting fluid and cutting oil from entering the infringement bearing 650.

In this embodiment, a V-shaped end face oil seal 607 is disposed at the end of the inner side of the screw 610 close to the motor base 620, the inner ring of the V-shaped end face oil seal 607 is sleeved on the periphery of the screw 610, and the outer ring of the V-shaped end face oil seal 607 is attached to the inner side of the bearing gland 640. Specifically, as shown in fig. 4, a V-shaped end face oil seal 607 is arranged between the right side of the screw 610 and the bearing cover 640 on the left side of the motor base 620 in this embodiment, and the inner ring and the outer ring of the V-shaped end face oil seal 607 are respectively attached to the outer periphery of the screw 610 and the inner side of the bearing cover 640, so as to prevent the cutting iron chips, the cutting fluid and the cutting oil from entering the infringement bearing 650.

As shown in fig. 4, in this embodiment, the end portion of the screw 610 close to the tail end base 630 is sleeved with a screw waterproof cover 690, the screw waterproof cover 690 is covered outside the bearing gland 640, specifically, in this embodiment, the end portion of the left side of the screw 610 is sleeved with the screw waterproof cover 690, which can block the cutting iron chips, the cutting fluid and the cutting oil from entering the inside of the transmission component at the end portion, thereby further improving the sealing and waterproof performance of the transmission component.

In this embodiment, the worktable 100 reciprocates under the driving of the transmission system 600, wherein the transmission system 600 includes a lead screw 610, a lead screw nut 611 is disposed on the lead screw 610, end surfaces of two sides of the lead screw nut 611 are nut end surfaces 612, and two ends of the lead screw 610 are further respectively provided with a motor base 620 and a tail end base 630. In the conventional machine tool transmission system 600, the impact action occurs between the nut end surface 612 and the motor base 620 and the tail end base 630 at the two ends, and the lead screw transmission system 600 is easily subjected to large impact, so that the transmission precision and the motion stability of the transmission system 600 are influenced, and further the operation stability and the machining precision of a machine tool are influenced.

In order to avoid the influence of a large impact on the transmission system 600 of the machine tool, the collision avoidance structure of the machine tool is improved in the embodiment, so that the large impact on the transmission system 600 is avoided. As shown in fig. 6, in this embodiment, two sliding rails 230 are arranged in parallel in the width direction of the bed 200, the sliding rails 230 extend in the length direction of the bed 200, a slider matched with the sliding rails 230 is arranged at the bottom of the workbench 100, two sides of each sliding rail 230 are provided with crash pads 210, the crash pads 210 are provided with crash cushion units 220 towards the inner side of the workbench 100, specifically, as shown in the orientation shown in fig. 6, the right side of the crash pad 210 on the left side of the sliding rail 230 is provided with the crash cushion units 220, and the left side of the crash pad 210 on the right side of the sliding rail 230 is provided with. As shown in fig. 8, in this embodiment, a distance between the nut end surface 612 on one side of the screw nut 611 and the tail end base 630 is L1, a distance between the nut end surface 612 on the other side of the screw nut 611 and the motor base 620 is L2, L1 is greater than a distance L3 between one end surface of the workbench 100 and the on-side crash cushion unit 220, and L2 is greater than a distance L4 between the other end surface of the workbench 100 and the on-side crash cushion unit 220. Specifically, in this embodiment, a distance L3 between the left end surface of the workbench 100 and the left crash cushion unit 220 is smaller than a distance L1 between the left nut end surface 612 and the tail end base 630, and a distance L4 between the right end surface of the workbench 100 and the right crash cushion unit 220 is smaller than a distance L2 between the right nut end surface 612 and the motor base 620. When the workbench 100 is driven by the transmission system 600 to reciprocate left and right, the impact action occurs between the end surfaces of the two sides of the workbench 100 and the anti-collision buffer units 220 mounted on the slide rails 230, and due to the fact that the moving parts of the gantry milling machine are heavy in weight, large in inertia and large in impact force, an improved anti-collision structure is adopted, the screw 610 and the screw nut 611 can be better protected, the whole screw transmission system 600 is protected, the transmission system 600 is prevented from being greatly impacted, and the transmission precision and the motion stability of the transmission system 600 are improved.

As shown in fig. 9, in this embodiment, the crash pad 210 includes a joint section 211 disposed at an end of the slide rail 230, the joint section 211 is fixed on the bed 200, one end of the joint section 211 away from the workbench 100 extends upward to be provided with a support section 212, and the support section 212 is provided with a crash cushion unit 220 toward an inner side of the workbench 100. The L-shaped design of the anti-collision seat 210 can better fix the anti-collision buffer unit 220 on both sides of the workbench 100, and the anti-collision buffer unit 220 is prevented from loosening in the collision process. In this embodiment, the anti-collision buffer unit 220 is an anti-collision buffer block, wherein the outer side of the anti-collision seat 210 away from the workbench 100 is further provided with a reinforcing plate, so that the overall strength of the anti-collision structure is further increased. In this embodiment, the noise reduction member is disposed on the anti-collision buffer unit 220, so that noise generated during collision can be greatly reduced, and a good working environment is provided

Example 2

The basic structure of the transmission system of the planer type milling machine workbench of the embodiment is as in embodiment 1, further, as shown in fig. 4, in the embodiment, a first O-ring 601 is arranged between the bearing gland 640 and the bearing seat 651 at the outer side of the tail end seat 630, and the first O-ring 601 can prevent cutting iron chips, cutting fluid and cutting oil from penetrating from a gap between the bearing gland 640 and the bearing seat 651 at the left side of the tail end seat 630 to the direction of the bearing 650; a second O-shaped sealing ring 602 is arranged between the outer bearing waterproof spacer ring 652 at one end of the tail end seat 630 and the lead screw 610, and the second O-shaped sealing ring 602 can prevent cutting iron chips, cutting fluid and cutting oil from penetrating from a gap between the outer bearing waterproof spacer ring 652 and the lead screw 610 to the direction of the bearing 650; an O-shaped sealing ring III 603 is arranged between the inner side bearing waterproof spacer 653 positioned at one end of the tail end seat 630 and the screw rod 610, and the O-shaped sealing ring III 603 can prevent cutting iron chips, cutting fluid and cutting oil from penetrating from a gap between the inner side bearing waterproof spacer 653 and the screw rod 610 to the direction of the bearing 650. Therefore, the first O-ring 601, the second O-ring 602, and the third O-ring 603 are used in cooperation, so that the cutting iron chips, the cutting fluid, and the cutting oil can be better prevented from penetrating toward the bearing 650, and the sealing integrity in the bearing chamber of the tail end seat 630 is further protected.

As shown in fig. 5, in this embodiment, four O-ring seals 604 and five O-ring seals 605 are respectively disposed between the bearing gland 640 at the inner end and the outer end of the motor base 620 and the motor base 620, specifically, in this embodiment, four O-ring seals 604 are disposed between the bearing gland 640 at the left end of the motor base 620 and the left end of the motor base 620, five O-ring seals 605 are disposed between the bearing gland 640 at the right end of the motor base 620 and the right end of the motor base 620, the four O-ring seals 604 can prevent the cutting iron chips, the cutting fluid and the cutting oil from penetrating toward the bearing 650 through the gap between the bearing gland 640 at the left end of the motor base 620 and the left end of the motor base 620, and the five O-ring seals 605 can prevent the cutting iron chips, the cutting fluid and the cutting oil from penetrating toward the bearing 650 through the gap between the bearing gland 640 at the right end of the. In this embodiment, an O-ring seal six 606 is provided between the bearing waterproof spacer 652 on the outer side of the motor base 620 and the lead screw 610, and the O-ring seal six 606 can prevent the cutting iron chips, the cutting fluid, and the cutting oil from penetrating toward the bearing 650 through the gap between the inner bearing waterproof spacer 652 on the right end of the motor base 620 and the lead screw 610. Therefore, the cooperation of the four O-shaped seal rings 604, the five O-shaped seal rings 605 and the six O-shaped seal rings 606 can better prevent the cutting iron chips, the cutting fluid and the cutting oil from permeating towards the bearing 650, and further protect the sealing integrity in the bearing chamber of the motor base 620.

Example 3

The basic structure of the gantry milling machine workbench transmission system of the embodiment is as in embodiment 2, further, as shown in fig. 2, in the embodiment, a motor base waterproof cover 621 is arranged at the top of the motor base 620, the periphery of the motor base waterproof cover 621 is bent downwards to form a sealed water retaining edge, and the water retaining edge extends to the outer side of the bearing gland 640. The motor base 620 bearing chamber inner structure is completely covered under the motor base waterproof cover 621, the dustproof and waterproof effect is good, a sealed water retaining edge is formed around the motor base 620 bearing chamber inner structure, cutting scrap iron, cutting fluid and cutting oil can be further prevented from flowing into the bearing chamber, the service life of the bearing 650 is prolonged, and the sealing structure is practical and reliable.

The top of tail end seat 630 is provided with tail end seat waterproof cover 631 in this embodiment, and tail end seat waterproof cover 631 bends down all around and forms sealed manger plate limit, and the manger plate limit extends to the lead screw waterproof cover 690 outside, and the tail end seat waterproof cover 631 inboard is provided with breakwater 633, and breakwater 633 extends along the width direction of tail end seat waterproof cover 631. The bearing chamber inner structure of the tail end seat 630 is completely covered under the tail end seat waterproof cover 631, the dustproof and waterproof effects are good, the periphery of the tail end seat is made into a sealed water blocking edge, cutting iron chips, cutting fluid and cutting oil can be further prevented from flowing into the bearing chamber, the water baffle 633 on the right side of the top of the tail end seat waterproof cover 631 can guide the cutting iron chips, the cutting fluid and the cutting oil generated in the working process of a machine tool to the outer side of a transmission part, and the bearing 650 is further protected.

As shown in fig. 4, in this embodiment, the end portions of the left and right sides of the screw 610 are provided with the locking nuts, and the two end portions of the screw 610 contacting with the bearing 650 are further sealed and locked, so that the integrity of the movement of the transmission part is protected, and the service life of the bearing 650 can be prolonged.

In this embodiment, the motor base waterproof cover 621 and the tail end base waterproof cover 631 which are installed on the bearing chamber are used to block most of large-particle iron chips, cutting fluid and cutting oil from entering the bearing chamber from the top and the periphery to form a first waterproof sealing structure; then, a screw rod waterproof cover 690 fixed at the end of the screw rod 610, a locking nut and a V-shaped end face oil seal 607 embedded in the periphery of the screw rod 610 are used for filtering a few of entering fine iron chips and oil-water mixtures to form a second waterproof sealing structure, then 6O-shaped sealing rings and mechanical sealing stop rings 660 installed at two ends of two bearing chambers are used for stopping the entering of mixed oil-water and fine iron chips, mixed oil-water and fine iron chips are guided to the outer side of the transmission part by using a tail end seat water leakage hole 632 and a bearing gland water leakage hole 641 to prevent the mixed oil-water and fine iron chips from continuously flowing towards the bearing 650 to form a third waterproof sealing structure, and finally, the invasion of fine iron chips, waste water and waste oil is completely stopped by using an outer side bearing waterproof spacer 652 and an inner. Through the left and right double sealing of the bearings 650 on the two sides of the screw rod 610, the three-dimensional all-dimensional dustproof and waterproof sealing structure is formed by heavy blocking, so that the positioning precision and stability of a transmission part are protected, the service life of a machine tool is prolonged, and the fault rate and the maintenance cost of the machine tool are reduced.

Example 4

The basic structure of the transmission system of a planer type milling machine workbench of the present embodiment is as in embodiment 1, except that the collision avoidance buffer unit 220 in the present embodiment is a hydraulic buffer 240. As shown in fig. 10, the hydraulic buffer 240 in this embodiment includes an inner cylinder 201, an outer cylinder 202 concentrically disposed, and end caps disposed at two ends, wherein an oil hole 203 communicated with the inner cylinder 201 is formed on one end cap for injecting hydraulic oil into the inner cylinder 201. A plurality of oil discharge holes 249 are circumferentially formed in the outer wall of the inner cylinder 201, a plurality of rows of oil discharge holes 249 are formed in the oil discharge holes 249, a spring 248 is arranged in the inner cylinder 201, one end of the spring 248 is connected with a buffer shaft 243 through a piston 247, the buffer shaft 243 extends out of the end cover on the other side of the oil pressure buffer 240, a collision head 242 is arranged at the end part, far away from the piston 247, of the buffer shaft 243, an oil seal 244 is arranged on one side, close to the collision head 242, of a bearing 245, the buffer shaft 243 is collided to move towards the left side of the outer cylinder 202 to drive the piston 247 to move leftwards and extrude the spring 248, and when the spring 248 is extruded, hydraulic oil flows into a cavity between the inner. In this embodiment, a plurality of oil return holes 246 are circumferentially formed in a side wall of an end portion of the inner cylinder 201 close to the collided head 242, specifically, in this embodiment, an oil return hole 246 is formed in a side wall of a right end portion of the inner cylinder 201, and hydraulic oil in a cavity between the inner cylinder 201 and the outer cylinder 202 can flow back into the inner cylinder 201 from the oil return hole 246. In addition, the head 242 is sleeved with a noise reduction sleeve 241 for reducing noise generated during collision.

When the buffer shaft 243 is impacted by external force, the piston 247 is driven to extrude the hydraulic oil in the inner cylinder 201, the hydraulic oil in the inner cylinder 201 is discharged outwards from the oil discharge hole 249 after being pressurized, and meanwhile, the hydraulic oil discharged from the inner cylinder 201 flows back to the inner cylinder 201 from the oil return hole 246 on the right side of the inner cylinder 201; when the external force disappears, the spring 248 pulls the piston 247 back to the initial position to wait for the next action, and the oil buffer 240 can effectively buffer the impact force of the two end surfaces of the workbench 100, thereby prolonging the service life of the machine tool.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims

1. The utility model provides a planer-type milling machine workstation transmission system, workstation (100) are reciprocating motion under transmission system (600) drive, and wherein transmission system (600) include lead screw (610), are provided with screw-nut (611) on lead screw (610), and the both ends of lead screw (610) are provided with motor cabinet (620) and tail end seat (630) respectively, and motor cabinet (620) and tail end seat (630) are inside all to be equipped with bearing (650) with lead screw (610) matched with, its characterized in that: an outer bearing waterproof spacer ring (652) is arranged at the outer side end of the bearing (650), a bearing gland (640) is arranged at the outer end part of the bearing (650) positioned on one side of the tail end seat (630), bearing glands (640) are arranged at the two end parts of the bearing (650) positioned on one side of the motor seat (620), a plurality of groups of grooves which correspond up and down are arranged at the positions where the outer bearing waterproof spacer ring (652) is attached to the bearing glands (640), and the mechanical seal stop ring (660) is formed by the grooves; the bottom of the bearing gland (640) positioned on the outer side of the tail end seat (630) is provided with a bearing gland water leakage hole (641) communicated with the outside, and the bottom of the inner side of the tail end seat (630) is provided with a tail end seat water leakage hole (632) which penetrates through;

two sliding rails (230) are arranged in parallel along the width direction of the milling machine body (200), sliding blocks matched with the sliding rails (230) are arranged at the bottom of the workbench (100), anti-collision seats (210) are arranged on two sides of each sliding rail (230), anti-collision buffer units (220) are arranged on the inner sides, facing the workbench (100), of the anti-collision seats (210), the distance between the nut end face (612) on one side of the screw nut (611) and the tail end seat (630) is L1, the distance between the nut end face (612) on the other side of the screw nut (611) and the motor seat (620) is L2, L1 is larger than the distance L3 between one end face of the workbench (100) and the anti-collision buffer unit (220) on the same side, and L2 is larger than the distance L4 between the other end face of the workbench (100) and the anti-collision buffer unit (220).

2. A planer milling machine table drive system according to claim 1, characterized in that: the bottom of the bearing gland (640) positioned at the inner side and the outer side of the motor base (620) is provided with bearing gland water leakage holes (641) communicated with the outside.

3. A planer milling machine table drive system according to claim 1, characterized in that: the end part of the inner side, close to the tail end seat (630), of the screw rod (610) is provided with a V-shaped end face oil seal (607), the inner ring of the V-shaped end face oil seal (607) is sleeved on the periphery of the screw rod (610), and the outer ring of the V-shaped end face oil seal (607) is attached to the inner side of the tail end seat (630).

4. A planer milling machine table drive system according to claim 1, characterized in that: the end part of the inner side of the screw rod (610) close to the motor base (620) is provided with a V-shaped end face oil seal (607), the inner ring of the V-shaped end face oil seal (607) is sleeved on the periphery of the screw rod (610), and the outer ring of the V-shaped end face oil seal (607) is attached to the inner side of the bearing gland (640).

5. A planer milling machine table drive system according to claim 1, characterized in that: the end part of one side, close to the tail end seat (630), of the screw rod (610) is sleeved with a screw rod waterproof cover (690), and the screw rod waterproof cover (690) is covered on the outer side of the bearing gland (640).

6. A planer milling machine table drive system according to claim 1, characterized in that: an inner side bearing waterproof spacer ring (653) is arranged at the end part of the inner side of the bearing (650) positioned on one side of the tail end seat (630), wherein a plurality of groups of grooves are formed in the positions where the inner side bearing waterproof spacer ring (653) is attached to the tail end seat (630), and the plurality of groups of grooves form a mechanical seal stop ring (660).

7. A milling planer table drive system according to claim 6, wherein: a bearing (650) positioned on one side of the tail end seat (630) is fixed in the tail end seat (630) through a bearing seat (651), and an O-shaped sealing ring I (601) is arranged between a bearing gland (640) on the outer side of the tail end seat (630) and the bearing seat (651); an O-shaped sealing ring II (602) is arranged between the outer bearing waterproof spacer ring (652) positioned at one end of the tail end seat (630) and the screw rod (610); an O-shaped sealing ring III (603) is arranged between the inner side bearing waterproof spacer ring (653) at one end of the tail end seat (630) and the screw rod (610).

8. A planer milling machine table drive system according to claim 1, characterized in that: an O-shaped sealing ring IV (604) and an O-shaped sealing ring V (605) are respectively arranged between the bearing gland (640) at the inner end and the outer end of the motor base (620) and the motor base (620); and an O-shaped sealing ring six (606) is arranged between the outer bearing waterproof spacer ring (652) positioned on one side of the motor base (620) and the screw rod (610).

9. A planer milling machine table drive system according to any one of claims 1 to 8, wherein: the top of the motor base (620) is provided with a motor base waterproof cover (621), the periphery of the motor base waterproof cover (621) is bent downwards to form a sealed water retaining edge, and the water retaining edge extends to the outer side of the bearing gland (640).

10. A planer milling machine table drive system according to claim 1, characterized in that: anticollision seat (210) are including setting up laminating section (211) at slide rail (230) tip, and laminating section (211) are fixed on lathe bed (200), and laminating section (211) keep away from the one end of workstation (100) and upwards extend and be provided with support section (212), and wherein support section (212) are provided with crashproof buffer unit (220) towards the inboard of workstation (100).