CN212665433U

CN212665433U - Transverse moving system of integral double-beam gantry milling machine and embedded ram fixing structure thereof

Info

Publication number: CN212665433U
Application number: CN202021334398.XU
Authority: CN
Inventors: 蔡晶; 王祚达; 冯学胜
Original assignee: NANJING NINGQING CNC MACHINE TOOL MANUFACTURE CO Ltd
Current assignee: NANJING NINGQING CNC MACHINE TOOL MANUFACTURE CO Ltd
Priority date: 2020-07-08
Filing date: 2020-07-08
Publication date: 2021-03-09
Anticipated expiration: 2030-07-08

Abstract

The utility model relates to a sideslip system of integral double-beam gantry milling machine and embedded ram fixing structure thereof, aiming at solving the technical problems that the ram is easy to generate the shaking of the motion direction and the positioning precision of the main shaft in the high-speed motion of the beam, comprising the ram and the main shaft, a pair of beams are arranged at the two sides of the ram, a pair of linear guide rails and a beam lead screw are arranged on the beam, a sideslip piece is arranged between the pair of beams, connecting plates which slide along the pair of linear guide rails are respectively fixed at the two opposite sides of the sideslip piece, the connecting plates are in threaded connection with the beam lead screw, and a first motor for driving the beam lead; a mounting cavity is longitudinally formed in the transverse moving piece, a linear guide rail pair II and a ram screw rod are arranged in the mounting cavity, the ram is connected with the linear guide rail pair II in a sliding mode and is connected with the ram screw rod in a threaded mode, and a motor II for driving the ram screw rod to rotate is arranged on the cross beam sliding plate. The utility model discloses reinforcing ram and main shaft mounting structure stability reduces high-speed motion gliding pillow and rocks, improves the effect of accurate positioning under the high-speed motion of main shaft.

Description

Transverse moving system of integral double-beam gantry milling machine and embedded ram fixing structure thereof

Technical Field

The utility model belongs to the technical field of the technique of gantry milling machine and specifically relates to a sideslip system of integral two crossbeam gantry milling machine and embedded ram fixed knot construct thereof are related to.

Background

The milling machine is a milling machine with a portal frame and a horizontal long lathe bed. The planer type milling machine can simultaneously machine the surface by a plurality of milling cutters, has higher machining precision and production efficiency, and is suitable for machining planes and inclined planes of large-scale workpieces in batch and mass production. The numerical control planer type milling machine can also process space curved surfaces and some special parts.

Chinese patent publication No. CN201415278Y discloses a double-beam gantry milling machine, which comprises a base, side beams, columns, a main shaft, a linear guide pair and a lead screw, wherein two sides of the base are respectively provided with a fixed beam, the fixed beams are respectively provided with the linear guide pair and the lead screw, the fixed beams are provided with the side beams, the side beams are mounted on the fixed beams through the linear guide pair and the lead screw, the two beams are fixed on the side beams in parallel, the cross beams are respectively provided with the linear guide pair and the lead screw, the cross beams are provided with a connecting plate, the connecting plate is mounted on the cross beams through the linear guide pair and the lead screw, the connecting plate is connected with the columns through the linear guide pair and the lead screw, the main shaft is mounted on the columns, the columns are arranged between the connecting plates, the linear guide pair is mounted on the horizontal end surface of the.

The above prior art solutions have the following drawbacks: the connecting plates are used as main connecting parts for the vertical columns and the main shafts to transversely move along the cross beams, the two sides of each vertical column, facing the two cross beams, are respectively connected with one connecting plate through the linear guide rail pairs and the screw rods, and meanwhile, the connecting plates are connected with the adjacent cross beams through the linear guide rail pairs and the screw rods, so that the vertical columns are limited between opposite sides by the pair of connecting plates arranged along the length direction of the cross beams, the main shafts and the vertical columns are high in mass, when the vertical columns and the main shafts move along the linear guide rail pairs on the cross beams at high speed along with the pair of connecting plates, the vertical columns and the main shafts are limited in relative movement trend of the ram and the connecting plates by the linear guide rail pairs connected between the vertical columns and the connecting plates and the screw rods.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a sideslip system of integral two crossbeam longmen milling machine and ram fixed knot construct thereof has reinforcing ram and main shaft mounting structure stability, reduces the problem that the ram rocked under the high-speed motion, improves the effect of accurate positioning under the high-speed motion of main shaft.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides an embedded ram fixed knot of integral two crossbeam longmen milling machine constructs, includes the sideslip piece, the back of the body both sides that carry on the back of the body of sideslip piece are fixed with the connecting plate of the connection crossbeam that slides respectively, vertically be formed with the installation cavity that is used for installing the ram in the sideslip piece.

By adopting the technical scheme, the ram and the spindle installed on the ram are longitudinally installed in the installation cavity, the transverse moving piece is connected with the two cross beams through the connecting plates on the two sides in a sliding mode respectively and slides along the cross beams, the installation cavity has the effect of limiting circumferential clamping of the ram, and in the high-speed movement of the ram, the stability of the installation structure of the ram and the spindle is favorably enhanced, the stability of the installation structure of the ram and the spindle is enhanced, the phenomenon that the ram shakes during high-speed movement is reduced, and the effect of accurate positioning of the spindle under high-speed movement is improved.

A transverse moving system applying the embedded ram fixing structure of the integral double-beam gantry milling machine comprises a ram and a main shaft installed on the ram, wherein a pair of beams are arranged on two sides of the ram in parallel, a linear guide rail pair I and a beam screw rod are arranged on the beam along the length direction of the beam, two connecting plates are respectively connected with the linear guide rail pair I on the beam in a sliding manner, the connecting plates are in threaded connection with the beam screw rod, and a motor I for driving the beam screw rod to rotate is fixed at the end part of the beam, which is positioned on the beam screw rod;

the transverse moving piece is positioned in the installation cavity and is longitudinally provided with a linear guide rail pair II and a ram screw rod, the ram is connected with the linear guide rail pair II in a sliding mode and is connected with the ram screw rod in a threaded mode, and a motor II for driving the ram screw rod to rotate is fixed on the transverse moving piece.

By adopting the technical scheme, an assembler puts the ram and the main shaft fixed on the ram into the mounting cavity, drives the ram screw rod to rotate through the driving motor II so as to drive the ram to longitudinally move along the linear guide rail pair II to adjust the feeding of the main shaft, the transverse moving piece simultaneously stretches across the pair of cross beams through the connecting plates on two sides and is connected with the linear guide rail pair I in a sliding mode, drives the cross beam screw rod to rotate through the driving motor so as to drive the transverse moving piece to transversely move along the linear guide rail pair I, the mounting cavity formed in the transverse moving piece covers the ram and the main shaft in the transverse moving process, the problem that the ram and the main shaft shake along with the transverse moving piece in the transverse moving process is favorably reduced, and the positioning precision of the main shaft after the main shaft moves to a.

The present invention may be further configured in a preferred embodiment as: the transverse moving piece comprises a pair of beam sliding plates which are fixed oppositely, opposite surfaces of the pair of beam sliding plates are symmetrically provided with butt joint grooves which form the installation cavity, the linear guide rail pair II is fixed on the groove wall of the butt joint groove, the ram screw rod is rotationally connected with the butt joint groove, and the motor II is fixed on the top surface of the beam sliding plate;

the top surface of the cross beam is provided with a screw rod groove along the length direction of the cross beam, two ends of the screw rod groove in the length direction are respectively fixed with a first bearing seat for the rotation connection of the cross beam screw rod, and the two connecting plates respectively extend to the opposite side above the cross beam.

Through adopting above-mentioned technical scheme, a pair of crossbeam slide is respectively along crossbeam length direction mutual disposition, and through relative butt joint groove with the ram centre gripping between relative, when operating personnel driving motor one drove the crossbeam lead screw and rotates, the crossbeam slide relies on the connecting plate of erectting at the crossbeam top surface to slide along the lead screw groove, the connecting plate on the one hand through the form of erectting above the crossbeam to the crossbeam slide and the ram of installing on it, the main shaft provides the holding power, on the other hand the connecting plate slides along the lead screw groove in-process, the lead screw groove provides spacing guide effect for the connecting plate process of sliding, further improve the crossbeam slide and the ram of installing on it, the mobility stability of main shaft.

The present invention may be further configured in a preferred embodiment as: and the opposite side surfaces of the pair of cross beams are respectively provided with a third linear guide rail pair along the length direction of the cross beam, and the cross beam sliding plate is connected with the third linear guide rail pair in a sliding manner towards the side wall of the cross beam.

By adopting the technical scheme, when an operator drives the two connecting plates to move, the connecting plates are guided by the linear guide pair one in a limiting way, meanwhile, the beam sliding plate is guided by the linear guide pair three in a limiting way towards the two sides of the pair of beams, and in the transverse motion process of the ram and the main shaft driven by the beam sliding plate, the two linear guide pair one is matched with the two linear guide pair three to simultaneously provide limiting action on the beam sliding plate and the connecting plates in a direction perpendicular to the length direction of the beams and in the longitudinal direction, so that the movement stability of the beam sliding plate is further enhanced.

The present invention may be further configured in a preferred embodiment as: and an end seat is arranged between the opposite surfaces of the two ends of the pair of cross beams, and the end seat and the end part of the pair of cross beams are integrally formed.

By adopting the technical scheme, after the end seat and the two cross beams are integrally formed, the relative positions of the two cross beams are fixed, so that assembly errors generated in the process of assembling the two cross beams are reduced, the accuracy of the relative positions of the two cross beams is improved, the structural strength of the integrally formed two cross beams is further enhanced, and the capacities of moving the bearing cross beam sliding plate, the ram and the main shaft and resisting stress deformation are improved.

The present invention may be further configured in a preferred embodiment as: the beam is hollow, a plurality of reinforcing ribs I are arranged inside the beam, and a plurality of lightening holes are formed in the outer side walls of the beam and the end seat.

By adopting the technical scheme, after the beam is hollowed inside, lightening holes are formed in the outer walls of the beam and the end seat, the overall quality of the beam and the end seat is reduced, the follow-up improvement of the moving speed of the beam is facilitated, the structural strength of the beam after the beam is hollowed inside is enhanced through the first reinforcing ribs, and the defects of insufficient bearing and bending strength of the beam are avoided.

The present invention may be further configured in a preferred embodiment as: a pair of the opposite side walls of the cross member is provided with reinforcing convexities.

Through adopting above-mentioned technical scheme, when the crossbeam bears crossbeam slide, ram and the reciprocal high-speed motion in-process of main shaft, two crossbeams relatively form the effort to the restriction tensioning of crossbeam slide, still need bear the pressure that the crossbeam slide dead weight produced simultaneously, strengthen the convex surface and be favorable to strengthening the whole bending resistance of crossbeam, compressive strength, improve the ability that the crossbeam resisted the external force and warp.

The present invention may be further configured in a preferred embodiment as: the side wall of the beam sliding plate is provided with a plurality of weight reducing grooves, and reinforcing ribs II are arranged in the weight reducing grooves.

By adopting the technical scheme, the weight reduction grooves are formed to reduce the overall mass of the beam sliding plate, the reinforcing ribs II are additionally arranged to compensate the overall structural strength of the beam sliding plate reduced by the weight reduction grooves, the beam sliding plate effectively reduced in weight by the weight reduction grooves is beneficial to improving the transverse moving speed along the beam, and the pressure on the beam in the states of static, high-speed motion and the like is reduced.

The present invention may be further configured in a preferred embodiment as: the side wall of the beam sliding plate, facing one end of the beam, is fixedly provided with a contact limit switch, the side wall of the beam is fixedly provided with a travel switch stop iron matched with the contact limit switch, and the contact limit switch is in control connection with the first motor.

By adopting the technical scheme, after the beam sliding plate moves to the travel switch stop iron, the travel switch stop iron touches the contact limit switch to stop the motor I quickly, so that the motion of the beam sliding plate is stopped in time, and the beam sliding plate and the beam are prevented from generating rigid collision.

The present invention may be further configured in a preferred embodiment as: and the top surfaces of the pair of end seats are relatively fixed with anti-collision supports, and the side walls of the anti-collision supports, which face the beam sliding plate, are fixed with anti-collision blocks.

By adopting the technical scheme, when the beam sliding plate is not normally stopped after being close to the end seat in the moving process, the beam sliding plate which continues to move collides with the anti-collision block to stop, and the anti-collision block prevents the beam sliding plate from directly and rigidly colliding with the end seat, so that the protection of the end seat, the beam sliding plate, the ram on the beam sliding plate and the main shaft is improved.

To sum up, the utility model discloses a following at least one useful technological effect:

1. under the high-speed transverse moving state of the transverse moving piece, the ram and the main shaft are clamped and limited by an installation cavity formed by the transverse moving piece, so that the problem that the ram and the main shaft shake along with the transverse moving of the transverse moving piece in the transverse moving process is favorably solved, and the positioning precision of the main shaft after moving to a processing position at high speed is improved;

2. the pair of beam sliding plates clamp the ram between the pair of beam sliding plates, on one hand, the connecting plate provides supporting force for the beam sliding plates, the ram and the main shaft which are arranged on the beam sliding plates in a mode of being erected above the beam, on the other hand, in the sliding process of the connecting plate along the screw rod groove, the screw rod groove provides limiting and guiding effects for the sliding process of the connecting plate, and the moving stability of the beam sliding plates, the ram and the main shaft which are arranged on the beam sliding plates is further improved;

3. the end seat and the two cross beams are integrally formed, so that assembly errors generated in the process of assembling the two cross beams are reduced, the accuracy of the relative positions of the two cross beams is improved, the structural strength of the two cross beams which are integrally formed is further enhanced, and the capacities of bearing the cross beam sliding plate, the ram and the main shaft for moving and resisting stress deformation are improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the cross beam, the side beam, the end seat, the cross beam sliding plate, the connecting plate and the ram in this embodiment.

Fig. 2 is a partial cross-sectional view for embodying the docking slot, the spindle, the ram-ram screw rod connection structure, and the linear guide rail pair two in this embodiment.

Fig. 3 is a sectional view showing a ram, a second linear guide pair, and a cross member slide plate connection structure according to the present embodiment.

Fig. 4 is a partial sectional view of the third linear guide pair, the reinforcing convex surface, the second reinforcing rib, and the square pressing block in this embodiment.

Fig. 5 is a partial view of the bumper bracket, bumper block, contact limit switch and travel switch stop iron of the present embodiment.

Fig. 6 is a partial cross-sectional view of the beam according to the present embodiment for embodying the hollow structure and the first reinforcing rib inside the beam.

In the figure, 1, a cross beam; 10. a side beam; 11. an end seat; 12. a screw rod groove; 13. a first linear guide rail pair; 131. a first guide rail; 132. a first sliding block; 14. a cross beam lead screw; 15. a first motor; 16. a first bearing seat; 17. lightening holes; 18. a reinforcing convex surface; 19. square briquetting; 2. a beam slide plate; 21. a connecting plate; 211. a nut seat; 22. a butt joint groove; 23. a mounting cavity; 231. a transmission cavity; 24. a fixed seat; 25. a second linear guide rail pair; 251. a second guide rail; 252. a second sliding block; 26. a ram screw; 261. a second bearing seat; 262. a limiting block; 27. a second motor; 28. a weight reduction groove; 29. a coupling; 3. reinforcing ribs I; 31. a first central cylinder; 32. a first reinforcing plate; 4. a second reinforcing rib; 41. a second central cylinder; 42. a second reinforcing plate; 5. a contact limit switch; 51. a travel switch stop iron; 6. an anti-collision support; 61. an anti-collision block; 7. a third linear guide rail pair; 71. a third guide rail; 72. a third sliding block; 8. a grating scale; 9. a ram; 91. a main shaft; 92. a nut pair; 93. and fixing the bracket.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, the transverse moving system of an integral double-beam gantry milling machine and the embedded ram fixing structure thereof disclosed by the utility model comprise a pair of beams 1 arranged in parallel, two ends of the pair of beams 1 are respectively and oppositely connected with end seats 11 integrally formed with the pair of beams 1, and the bottom surfaces of the end seats 11 are fixed with side beams 10 sliding along a fixed beam and a milling machine base (not shown in the figure); after the end seat 11 and the two cross beams 1 are integrally formed, the relative positions of the two cross beams 1 are fixed, so that assembly errors generated in the process of assembling the two cross beams 1 are reduced, the accuracy of the relative positions of the two cross beams 1 is improved, the structural strength of the two cross beams 1 which are integrally formed is further enhanced, and the capacity of moving a bearing object and resisting stress deformation of the two cross beams 1 is improved.

Referring to fig. 1 and 2, a traverse member is erected between a pair of beams 1, the traverse member includes a pair of beam sliding plates 2 which are arranged along the length direction of the beams 1 and are fixedly connected relatively, a pair of butt joint grooves 22 are formed along the longitudinal symmetry on the opposite surfaces of the pair of beam sliding plates 2, a mounting cavity 23 is formed in the pair of butt joint grooves 22, a ram 9 is longitudinally arranged in the mounting cavity 23, a spindle 91 is fixed at the center of the bottom of the ram 9, and the spindle 91 is mounted on the ram 9 according to the prior art of planer type milling machine equipment, which is not described herein again.

Referring to fig. 2 and 3, a linear guide rail pair 25 is longitudinally arranged on the groove wall of the butt joint groove 22 of the beam sliding plate 2, the linear guide rail pair 25 comprises a guide rail pair 251 longitudinally fixed on the surface of the ram 9 facing the butt joint groove 22 and a slide block pair 252 fixed on the groove wall of the butt joint groove 22 and connected with the guide rail pair 251 in a sliding manner, a transmission cavity 231 is longitudinally hollowed in the butt joint groove 22 opposite to the two sides of the pair of beam sliding plates 2, bearing seats second 261 are relatively fixed on the cavity walls at the two longitudinal ends in the transmission cavity 231 in the beam sliding plate 2, a ram screw rod 26 is rotatably connected between the pair of bearing seats second 261, a nut pair 92 is fixedly connected on the side wall of the ram 9 facing the ram screw rod 26, the nut pair 92 is in threaded connection with the ram screw rod 26, a motor second 27 is fixed on the top surface of the beam sliding plate 2 through a fixing seat 24, and the output end wall of the motor second 27 penetrates through the transmission cavity, the opposite surfaces of the pair of bearing seats 261 are respectively fixed with a limiting block 262 for limiting the moving position of the nut seat 92; an operator drives the second motor 27 to drive the ram screw rod 26 to rotate, the ram 9 is limited by the second guide rails 251 to rotate and moves along the axial direction of the ram screw rod 26 along with the nut pair 92, and therefore the longitudinal feeding motion of the main shaft 91 connected to the lower portion of the ram 9 is achieved.

Referring to fig. 3, the left and right back side walls of the lower portion of the ram 9 are respectively fixed with a fixing support 93 through bolts, the two fixing supports 93 respectively extend to the lower ends of the pair of beam sliding plates 2, the pair of fixing supports 93 are conveniently clamped and fixed to fix the ram 9 in the transporting process of the ram 9, and when the ram 9 is installed and used, an operator needs to detach the fixing supports 93 to avoid interference with the movement of the ram 9.

Referring to fig. 3 and 4, a plurality of weight-reducing grooves 28 penetrating through the mounting cavity 23 are formed in the outer side wall of the beam sliding plate 2, reinforcing ribs two 4 are fixed in the weight-reducing grooves 28, the structures of the reinforcing ribs two 4 are not unique, in the embodiment, the reinforcing ribs two 4 comprise central cylinders two 41 and four reinforcing plates two 42 uniformly fixed along the circumferential direction of the outer cylindrical surface of the central cylinders two 41, and the central cylinders two 41 are perpendicular to the outer side wall of the beam sliding plate 2 and are fixedly connected with the beam sliding plate 2 together with the reinforcing plates two 42; the overall mass of the beam sliding plate 2 is greatly reduced by arranging a large number of weight reducing grooves 28 penetrating the mounting cavity 23, and meanwhile, the overall structural strength of the beam sliding plate 2 reduced by the weight reducing grooves 28 is compensated by additionally arranging a plurality of reinforcing ribs II 4, so that the beam sliding plate 2 after effective weight reduction is beneficial to improving the transverse moving speed along the beam 1 and reducing the pressure of the beam sliding plate 2 on the beam 1 in the states of static, high-speed motion and the like.

Referring to fig. 1 and 2, a pair of beam sliding plates 2 extends towards two side walls of a beam 1 to form connecting plates 21, the pair of connecting plates 21 and the beam sliding plates 2 are integrally formed and are respectively erected on the top surfaces of the pair of beams 1, linear guide rail pairs 13 are respectively arranged on the top surfaces of the pair of beams 1 and the positions attached to the opposite side edges of the pair of beams 1 along the length direction of the beam 1, each linear guide rail pair 13 comprises a guide rail pair 131 fixed on the top surface of the beam 1 and a slide block pair 132 fixed on the bottom surface of the connecting plate 21 and connected with the guide rail pair 131 in a sliding manner, a screw rod groove 12 is formed in the top surface of the pair of beams 1 and the side, opposite to the guide rail pair 131, of the beam 1 along the length direction of the beam 1, bearing blocks 16 are relatively fixed on the bottom walls of two ends of the screw rod groove 12 in the length direction, a beam screw rod 14 is rotatably connected between the bearing blocks, the output end of the motor I15 is fixedly connected with the end wall of the beam lead screw 14 coaxially, and the bottom surface of the connecting plate 21 is fixedly provided with a nut seat 211 which is connected with the beam lead screw 14 in a threaded manner and slides along the lead screw groove 12; the crossbeam sliding plates 2 are simultaneously and transversely erected on the pair of crossbeams 1 through the pair of connecting plates 21, an operator drives the crossbeam screw mandrel 14 to rotate through the driving motor I15, the crossbeam screw mandrel 14 drives the nut seat 211 and the connecting plates 21 to slide along the screw groove 12, so that the pair of crossbeam sliding plates 2 and the ram 9 and the spindle 91 in the installation cavity 23 slide along the linear guide rail I131, on one hand, the connecting plates 21 provide supporting force for the crossbeam sliding plates 2 and the ram 9 and the spindle 91 installed on the crossbeam sliding plates 2 through the manner of being erected above the crossbeam 1, on the other hand, in the sliding process of the connecting plates 21 and the nut seats 211 along the screw groove 12, the screw groove 12 provides limiting and guiding effects for the sliding process of the connecting plates 21, the moving stability of the crossbeam sliding plates 2 and the ram 9 and the spindle 91 installed on the crossbeam sliding plates 2 is further improved, and the ram 9 and the spindle 91 are clamped and limited in the installation cavity 23 formed by the pair of, the stability of the mounting structures of the ram 9 and the main shaft 91 is improved, the problem that the ram 9 and the main shaft 91 shake along with the transverse movement of the pair of beam sliding plates 2 is solved, and the positioning precision of the main shaft 91 after moving to a machining position at a high speed is improved.

Referring to fig. 4 and 5, the opposite side surfaces of the pair of beams 1 are located on the side edges of the first attaching guide rails 131, a plurality of square pressing blocks 19 which tightly abut against the side edges of the first attaching guide rails 131 are fixed along the length direction of the first attaching guide rails 131, when the connecting plates 21 are driven by the beam screw 14 and slide along the first attaching guide rails 131, the pair of connecting plates 21 and the beam sliding plates 2 fixed between the pair of connecting plates 21 generate tensile force on the pair of first attaching guide rails 131, and the square pressing blocks 19 further strengthen the stability of the first attaching guide rails 131 on the beams 1, and reduce the possibility that the first.

Referring to fig. 2 and 4, a linear guide rail pair three 7 is arranged between the side surface of the beam 1 facing the beam sliding plate 2 and the beam sliding plate 2 along the length direction of the beam 1, and the linear guide rail pair three 7 comprises a guide rail three 71 fixed on the side wall of the beam 1 facing the beam sliding plate 2 and a slide block 72 fixed on the side wall of the beam sliding plate 2 facing the beam 1 and connected with the guide rail three 71 in a sliding manner; when an operator drives the cross beam sliding plate 2 to move by the first drive motor 15, the cross beam sliding plate 2 is not only subjected to the limiting guide effect which is mainly used for limiting the left and right direction play trend of the cross beam sliding plate 2 and is generated by the third pair of linear guide rails 7 on the two back side surfaces, but also is subjected to the limiting guide effect which is mainly used for limiting the up and down direction play trend of the cross beam sliding plate 2, the first two guide rails 131 and the third two guide rails 71 are matched, and the stability of the cross beam sliding plate 2 under high-speed movement is further improved.

Referring to fig. 1 and 2, a grating ruler 8 is fixed on a side wall of one of the beams 1 facing the other beam 1 along the length direction of the beam 1, the grating ruler 8 is used for measuring distance data of the beam sliding plate 2 moving along the length direction of the beam 1, so as to improve the moving precision of the beam sliding plate 2, and the structural principle of the grating ruler 8 is the prior art and is not described herein again.

Referring to fig. 1 and 5, a contact limit switch 5 is fixed on the side wall of the cross beam sliding plate 2 facing the end of the cross beam 1 far away from the first motor 15, the contact limit switch 5 is close to the opposite surface of the cross beam 1 on one side and the opposite surface of the cross beam 1 on the other side, a travel switch stop iron 51 corresponding to the contact limit switch 5 on the same side is fixed on the side wall of the cross beam 1 far away from the end of the first motor 15, the contact limit switch 5 controls the on-off of a power supply connected with the first motor 15, an anti-collision support 6 is fixed on the top surface of a pair of end bases 11 relatively, an anti-collision block 61 is fixed on the side wall of the anti-collision support 6 facing the cross beam sliding plate 2, and the relative distance of the pair of anti-; when the beam sliding plate 2 moves to the travel switch stop iron 51, the travel switch stop iron 51 just engages with the contact limit switch 5 and stops the motor one 15 quickly, so that the movement of the beam sliding plate 2 is stopped in time, the beam sliding plate 2 and the beam 1 are prevented from generating rigid collision, when the beam sliding plate 2 is not stopped normally after being close to the end seat 11 in the moving process, the beam sliding plate 2 which moves continuously collides with the anti-collision block 61 to stop, the anti-collision block 61 prevents the beam sliding plate 2 from directly and rigidly colliding with the end seat 11, and the protection of the end seat 11, the beam sliding plate 2, the ram 9 on the beam sliding plate 2 and the main shaft 91 is improved.

Referring to fig. 4 and 6, the inside of the beam 1 is hollowed out and the bottom surface thereof penetrates the inside, a plurality of first reinforcing ribs 3 are arranged inside the beam 1 along the length direction of the beam 1, the structures of the first reinforcing ribs 3 are not unique, in this embodiment, the first reinforcing ribs 3 include a first central cylinder 31 and four first reinforcing plates 32 uniformly fixed along the circumferential direction of the outer cylinder surface of the first central cylinder 31, wherein a pair of first reinforcing plates 32 located on the same radial straight line of the first central cylinder 31 are respectively fixedly connected with two inner side walls of the beam 1, the other pair of first reinforcing plates 32 are respectively connected with first reinforcing plates 32 of the first reinforcing ribs 3 on two sides along the length direction of the beam 1, a plurality of through holes 321 are penetrated through the plate surface of the first reinforcing plates 32 to reduce the mass of the first reinforcing plates 32 and the total weight of the assembled beam 1, a plurality of lightening holes 17 are formed on the outer side walls of the beam 1 and the end seat 11, after, thereby effectively reduce the whole quality of crossbeam 1 and end seat 11 by a wide margin, be favorable to follow-up improvement crossbeam 1 velocity of motion, through the structural strength of a plurality of stiffening ribs 3 reinforcing inside fretwork back crossbeam 1, reduce the crossbeam 1 in the use bear, the bending strength not enough problem.

Referring to fig. 4, a pair of opposite side walls of the cross beam 1 respectively extend oppositely along the length direction of the cross beam 1 to form reinforcing convex surfaces 18, the cross section of each reinforcing convex surface 18 is in an isosceles trapezoid shape, when the cross beam 1 bears the reciprocating high-speed motion process of the cross beam sliding plate 2, the ram 9 and the main shaft 91, the two opposite cross beams 1 form an acting force for limiting tensioning on the cross beam sliding plate 2 and also bear pressure generated by the self weight of the cross beam sliding plate 2, and the reinforcing convex surfaces 18 are beneficial to enhancing the integral bending resistance and compressive strength of the cross beam 1 and improving the capacity of the cross beam.

The implementation principle of the embodiment is as follows: after the ram 9 and the main shaft 91 are placed in the installation cavity 23, the ram 9 and the main shaft 91 are limited and guided by a plurality of linear guide rail pairs 25, a pair of motors 27 are driven to respectively drive a pair of ram screw rods 26 to rotate, so that longitudinal feeding motion of the ram 9 and the main shaft 91 can be realized, an operator drives a pair of motors 15 to drive a pair of beam screw rods 14 to rotate, the beam sliding plates 2 are erected on a pair of beams 1 through a pair of connecting plates 21 on two opposite sides, the connecting plates 21 are driven by the beam screw rods 14 to move along the length direction of the beams 1, meanwhile, the connecting plates 21 are limited and guided by the linear guide rail pairs 13 and the screw rod grooves 12, when the ram 9 and the main shaft 91 which are arranged between the pair of beam sliding plates 2 are opposite to each other move along the length direction of the beams 1 along with the beam sliding plates 2, the installation cavity 23 forms a clamping and limiting effect on, Resulting in a problem of poor positioning accuracy of the main shaft 91.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides an embedded ram fixed knot of integral two crossbeam longmen milling machine constructs which characterized in that: the device comprises a transverse moving piece, wherein two opposite sides of the transverse moving piece are respectively fixed with a connecting plate (21) connected with a cross beam (1) in a sliding manner, and a mounting cavity (23) used for mounting a ram (9) is longitudinally formed in the transverse moving piece.

2. A traverse system using a ram fixing structure built in an integral type double-beam gantry milling machine according to claim 1, comprising a ram (9) and a main shaft (91) installed on the ram (9), characterized in that: a pair of cross beams (1) are arranged on two sides of the ram (9) in parallel, a pair of linear guide rails (13) and a cross beam screw rod (14) are arranged on each cross beam (1) along the length direction of each cross beam (1), two connecting plates (21) are connected with the pair of linear guide rails (13) on the cross beams (1) in a sliding mode respectively, the connecting plates (21) are connected with the cross beam screw rod (14) in a threaded mode, and a motor I (15) for driving the cross beam screw rod (14) to rotate is fixed at the end portion, located on the cross beam screw rod (14), of each cross beam (1);

the transverse moving piece is positioned in the mounting cavity (23) and is longitudinally provided with a linear guide rail pair II (25) and a ram screw rod (26), the ram (9) is connected with the linear guide rail pair II (25) in a sliding mode and is in threaded connection with the ram screw rod (26), and a motor II (27) for driving the ram screw rod (26) to rotate is fixed on the transverse moving piece.

3. The traversing system according to claim 2, wherein the ram fixing structure is embedded in the integral double-beam gantry milling machine, and the traversing system comprises: the transverse moving piece comprises a pair of beam sliding plates (2) which are fixed oppositely, opposite surfaces of the pair of beam sliding plates (2) are symmetrically provided with butt joint grooves (22) forming the mounting cavity (23), a second linear guide rail pair (25) is fixed on the groove wall of the butt joint groove (22), a ram screw rod (26) is rotatably connected in the butt joint groove (22), and a second motor (27) is fixed on the top surface of the beam sliding plate (2);

the top surface of crossbeam (1) has seted up lead screw groove (12) along crossbeam (1) length direction, the both ends of lead screw groove (12) length direction are fixed with respectively and supply crossbeam lead screw (14) rotate bearing frame one (16) of connecting, two connecting plate (21) extend to relative one side respectively the top of crossbeam (1).

4. The traversing system according to claim 3, wherein the ram fixing structure is embedded in the integral double-beam gantry milling machine, and the traversing system comprises: the pair of opposite side surfaces of the cross beam (1) are respectively provided with a linear guide rail pair III (7) along the length direction of the cross beam (1), and the cross beam sliding plate (2) is connected with the linear guide rail pair III (7) in a sliding mode towards the side wall of the cross beam (1).

5. The traversing system of the ram fixing structure embedded in the integral double-beam gantry milling machine according to claim 3 or 4, wherein: an end seat (11) is arranged between the opposite surfaces of the two ends of the cross beam (1), and the end seat (11) and the end part of the cross beam (1) are integrally formed.

6. The traversing system according to claim 5, wherein the ram fixing structure is embedded in the integral double-beam gantry milling machine, and the traversing system comprises: the beam (1) is hollow, a plurality of reinforcing ribs I (3) are arranged inside the beam (1), and a plurality of lightening holes (17) are formed in the outer side walls of the beam (1) and the end seat (11).

7. The traversing system according to claim 5, wherein the ram fixing structure is embedded in the integral double-beam gantry milling machine, and the traversing system comprises: a pair of opposite side walls of the cross beam (1) are provided with reinforcing convex surfaces (18).

8. The traversing system according to claim 5, wherein the ram fixing structure is embedded in the integral double-beam gantry milling machine, and the traversing system comprises: the side wall of the beam sliding plate (2) is provided with a plurality of weight reducing grooves (28), and reinforcing ribs II (4) are arranged in the weight reducing grooves (28).

9. The traversing system according to claim 5, wherein the ram fixing structure is embedded in the integral double-beam gantry milling machine, and the traversing system comprises: crossbeam slide (2) orientation the lateral wall of crossbeam (1) one end is fixed with contact limit switch (5), the lateral wall of crossbeam (1) is fixed with the cooperation travel switch stop iron (51) that contact limit switch (5) used, contact limit switch (5) control connection motor (15).

10. The traversing system according to claim 5, wherein the ram fixing structure is embedded in the integral double-beam gantry milling machine, and the traversing system comprises: and the top surfaces of the pair of end seats (11) are relatively fixed with anti-collision supports (6), and the side walls of the anti-collision supports (6) facing the beam sliding plate (2) are fixed with anti-collision blocks (61).