CN115741223A

CN115741223A - Ram type double-spindle horizontal machining center

Info

Publication number: CN115741223A
Application number: CN202211579710.5A
Authority: CN
Inventors: 陈巧才; 黄旭奔; 何宝林; 陈盛; 卢曜朗
Original assignee: Jiangnan Cnc Machine Tool Co ltd
Current assignee: Jiangnan Cnc Machine Tool Co ltd
Priority date: 2022-12-09
Filing date: 2022-12-09
Publication date: 2023-03-07

Abstract

The invention discloses a ram-type double-spindle horizontal machining center, which relates to the technical field of numerical control machines and solves the problem of low efficiency of a ball screw pair lubrication mode in the traditional machining center, and comprises two upright columns arranged on a base, wherein one upright column is fixedly provided with an installation plate, one side of each upright column is symmetrically provided with the ball screw pair, and the installation plate is provided with a lubrication device for injecting oil to the ball screw pair; the lubricating device comprises an oil storage cylinder, an oil outlet cap, an oil outlet assembly, a transmission assembly, a fixing assembly and an oil filling hose, and lubricating oil can be uniformly and periodically injected into a channel between a nut on a ball screw pair and a screw through the mutual matching of the designed oil storage cylinder, the oil outlet cap, the oil outlet assembly, the transmission assembly, the fixing assembly and the oil filling hose, so that the automatic and efficient lubrication of the ball screw pair is ensured, the manual filling of lubricating grease is completely replaced, the labor is saved, and the performance, the precision and the service life of the ball screw are improved.

Description

Ram type double-spindle horizontal machining center

Technical Field

The invention relates to the technical field of numerical control machine tools, in particular to a ram type double-spindle horizontal machining center.

Background

At present, as shown in fig. 1, a conventional ram-type dual-spindle horizontal machining center is composed of two sets of spindle units, two sets of X-axis feeds, two sets of Y-axis feeds, two sets of Z-axis feeds, 1 numerical control turntable, and 1 auxiliary feed shaft. The specific layout is as follows: the base is provided with a vertical column 1, a vertical column 2 and a turntable base. The upright 1, the upright 2 and the turntable base can linearly move in parallel on a horizontal plane to form an X1 axis, an X2 axis and an auxiliary axis. The upright post 1 and the upright post 2 are respectively provided with a ram seat 1 and a ram seat 2. The ram seat 1 and the ram seat 2 are hung on the upright column and move linearly in the vertical direction to form Y1-axis and Y2-axis motion. The ram 1 and the ram 2 respectively move linearly in the front-back direction on the ram seat 1 and the ram seat 2 to form Z1-axis and Z2-axis movement. The two groups of main shaft units are respectively arranged on the ram 1 and the ram 2. The main shaft unit clamps the cutting tool to realize the rotation of the tool and provide cutting power. The three feed axes X1, Y1, Z1 move in three directions of left-right, up-down, and front-back to realize the cutting feed of the spindle unit 1. The feeding shafts of the main shaft units 1, X1, Y1 and Z1 form a processing system, and the feeding shafts of the main shaft units 2, X2, Y2 and Z2 also form a processing system, so that parts can be independently processed without being influenced by each other. The numerical control rotary table is arranged on the rotary table seat and can rotate 360 degrees to process four sides of a workpiece. The auxiliary shaft drags the turntable base and the numerical control turntable to move, so that the workpiece is convenient to clamp and disassemble, the machining stroke in the X-axis direction can be increased in a limited manner, and the machining manufacturability is improved. The 7 groups of linear motion shafts are supported and guided by linear guide rails, the servo motor drives the ball screw, and the ball screw drags the motion assembly to move.

However, in the using process, because the ball screw needs to be lubricated in the process of performing rolling circulating motion on the channel of the nut and the screw, timely lubrication is a basic condition for ensuring the normal work of the ball screw assembly, grease lubrication is adopted in the traditional ball screw assembly lubrication mode, manual regular shutdown and lubrication oil filling are needed in the grease lubrication mode, but in some occasions where grease lubrication cannot be performed due to space limitation, the lubrication of the ball screw assembly becomes a problem, if sufficient lubrication cannot be obtained for a long time, the failure rate of the ball screw assembly is greatly increased, and meanwhile, the performance, the precision and the service life of the ball screw are also reduced. Therefore, a ram type double-spindle horizontal machining center is provided.

Disclosure of Invention

The invention aims to provide a ram-type double-spindle horizontal machining center which is convenient for oiling and lubricating a ball screw pair, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a ram type double-spindle horizontal machining center comprises two upright columns arranged on a base, wherein a mounting plate is fixed on one of the upright columns, ball screw pairs are symmetrically arranged on one side of each upright column, and a lubricating device for oiling the ball screw pairs is arranged on each mounting plate; lubricating arrangement includes an oil storage section of thick bamboo, the cap that produces oil, the subassembly that produces oil, drive assembly, fixed subassembly and oiling hose, an oil storage section of thick bamboo passes through fixed subassembly fixed mounting be in on the mounting panel, the cap threaded connection that produces oil is in the bottom of an oil storage section of thick bamboo, the subassembly that produces oil is installed an oil storage section of thick bamboo with between the cap that produces oil, the one end of oiling hose with the inside intercommunication of the cap that produces oil, just the other end of oiling hose with nut on the ball screw pair is linked together with the channel of lead screw, drive assembly installs on the mounting panel.

Preferably, the subassembly of producing oil includes the baffle, lets the beam hanger, seals piece, reciprocating spring and reciprocating mechanism, the baffle is fixed the inside of a cap for producing oil, the baffle with the bottom surface of an oil storage section of thick bamboo is laminated mutually, the both ends of letting the beam hanger slide respectively and run through the inside of baffle with the bottom of a cap for producing oil, the top of letting the beam hanger extend to the inside of an oil storage section of thick bamboo is fixed with the fixed block, sealed piece fixed cover is in let the outside of beam hanger, seted up on the baffle with the sealed hole of sealed piece looks adaptation, reciprocating spring's both ends respectively with the baffle with fixed block fixed connection, reciprocating mechanism installs on the mounting panel and with let the bottom transmission of beam hanger connect, can conveniently supply with the emollient in the oil storage section of thick bamboo through the subassembly of producing oil of design.

Preferably, the reciprocating mechanism comprises a reciprocating cam, a roller, a stepped shaft, a fixed bearing seat, a movable bearing seat, a spline shaft, a spline housing and a first bevel gear, the reciprocating cam is fixedly sleeved on the outer side of the middle of the stepped shaft, the right end of the stepped shaft is rotatably connected with the fixed bearing seat, the spline shaft is fixedly arranged at the left end of the stepped shaft, the spline housing is rotatably connected with the movable bearing seat, the first bevel gear is fixedly arranged at the left end of the spline housing, the first bevel gear is slidably connected with the spline shaft through the spline housing, the output end of the transmission assembly is in transmission connection with the first bevel gear, and the reciprocating mechanism can be used for conveniently and intermittently supplying the lubricant.

Preferably, a sliding block is fixed at the bottom of the movable bearing seat, a sliding rail matched with the sliding block is fixed on the mounting plate, electric push rods are installed on the front side and the rear side of the movable bearing seat, one end of each electric push rod is fixedly connected with the fixing assembly, the first bevel gear and the transmission assembly can be separated and combined through the electric push rods, and the motion of the reciprocating mechanism can be controlled by means of power of the ball screw pair.

Preferably, transmission assembly includes transfer line, first spur gear, second spur gear, transmission shaft, backup pad, rotor plate, gag lever post and second bevel gear, the bottom of transfer line with ram top fixed connection on the stand, the top of transfer line is run through mounting panel and vertical upwards extension, the bottom of first spur gear pass through the bearing with the rotor plate rotates to be connected, the bottom of rotor plate is through a plurality of the gag lever post with the top fixed connection of mounting panel, the thread groove has been seted up in the outside of transfer line, be carved with the internal thread in the mesopore of first spur gear, first spur gear pass through the internal thread with the outside threaded connection of transfer line, and with second spur gear meshing connects, second spur gear fixed cover is in the outside of transmission shaft, the backup pad pass through the bearing with the transmission shaft rotates to be connected and its bottom mounting on the mounting panel, second bevel gear fixes the top of transmission shaft is convenient for transmit the vice power of ball screw through transmission assembly.

Preferably, fixed subassembly includes mount, arc splint and bolt, the mount with arc splint all are equipped with two, two arc splint are fixed respectively two the top of mount, two the inboard of arc splint with the outer wall of an oil storage section of thick bamboo presss from both sides tight cooperation, and two both ends all pass through about the arc splint bolt fixed connection, the bottom mounting of mount is in on the mounting panel, electric putter's one end is fixed on the lateral wall of mount, conveniently fix an oil storage section of thick bamboo through fixed subassembly.

Preferably, the top threaded connection of an oil storage barrel has an injection cover, the oil storage barrel is made of transparent plastic materials, and lubricating oil is convenient to add through the injection cover.

Preferably, the bottom of the oil outlet cap is fixed with a sealing ring, and the inner wall of the sealing ring is in contact with the outer side of the oil drain rod, so that the sealing performance of the bottom of the oil outlet cap is improved.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, through the mutual matching of the designed oil storage cylinder, the oil outlet cap, the oil outlet assembly, the transmission assembly, the fixing assembly and the oil filling hose, lubricating oil can be uniformly and periodically injected into the nut on the ball screw pair and the channel of the screw, so that the ball screw pair can be automatically and efficiently lubricated, the manual lubricating grease filling is completely replaced, the labor is saved, the problem that the failure rate of the ball screw pair is greatly increased due to insufficient lubrication for a long time is avoided, and meanwhile, the performance, the precision and the service life of the ball screw are improved.

Drawings

FIG. 1 is a schematic structural diagram of a conventional ram-type double-spindle horizontal machining tool;

FIG. 2 is a schematic view of the overall structure of the present invention;

FIG. 3 is a schematic view of the structure of the lubricating device of the present invention;

FIG. 4 is a partial cross-sectional structural schematic of the present invention;

FIG. 5 is a schematic view of a portion of the oil outlet assembly of the present invention;

FIG. 6 is a schematic view of the reciprocating mechanism assembly of the present invention;

FIG. 7 is a schematic view of a portion of the reciprocating mechanism of the present invention;

FIG. 8 is a schematic view of the transmission assembly of the present invention;

FIG. 9 is a schematic view of a fixing assembly according to the present invention.

In the figure: 1-upright column; 2-mounting a plate; 3-ball screw pair; 4-a lubricating device; 5-an oil storage cylinder; 6-oil outlet cap; 7-an oil outlet assembly; 8-a transmission assembly; 9-a fixed component; 10-oil injection hose; 11-a separator; 12-oil drain rod; 13-a sealing block; 14-a reciprocating spring; 15-a reciprocating mechanism; 16-fixing block; 17-sealing the hole; 18-a reciprocating cam; 19-a roller; 20-a stepped shaft; 21-fixing the bearing seat; 22-a movable bearing seat; 23-a splined shaft; 24-spline housing; 25-a first bevel gear; 26-a slide block; 27-a slide rail; 28-electric push rod; 29-a transmission rod; 30-a first straight gear; 31-a second spur gear; 32-a drive shaft; 33-a support plate; 34-a rotating plate; 35-a limiting rod; 36-a second bevel gear; 37-a fixed mount; 38-arc splint; 39-bolt; 40-injection cap; 41-sealing ring.

Detailed Description

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

Example 1

As shown in fig. 2 and 3, the ram-type double-spindle horizontal machining center shown in the figure comprises two upright posts 1 mounted on a base, wherein a mounting plate 2 is fixed on one upright post 1, ball screw pairs 3 are symmetrically arranged on one side of the upright post 1, and a lubricating device 4 for oiling the ball screw pairs 3 is arranged on the mounting plate 2; the lubricating device 4 comprises an oil storage cylinder 5, an oil outlet cap 6, an oil outlet assembly 7, a transmission assembly 8, a fixing assembly 9 and an oil injection hose 10, wherein the oil storage cylinder 5 is fixedly installed on the installation plate 2 through the fixing assembly 9, the oil outlet cap 6 is in threaded connection with the bottom of the oil storage cylinder 5, the oil outlet assembly 7 is installed between the oil storage cylinder 5 and the oil outlet cap 6, one end of the oil injection hose 10 is communicated with the inside of the oil outlet cap 6, the other end of the oil injection hose 10 is communicated with a channel of a screw rod and a nut on the ball screw pair 3, the transmission assembly 8 is installed on the installation plate 2, through the designed oil storage cylinder 5, the oil outlet cap 6, the oil outlet assembly 7, the transmission assembly 8 and the fixing assembly 9 and the oil injection hose 10 are matched with each other, lubricating oil can be regularly and uniformly injected into the channel of the screw rod and the nut on the ball screw pair 3, automatic and efficient lubrication of the ball screw pair is guaranteed, manual lubricating grease is completely replaced, manpower is saved, and the problem that the failure rate of the ball pair is greatly increased due to insufficient lubrication for a long time is solved, the performance of the ball screw rod is also improved, the precision and the service life of the ball screw rod is prolonged.

As shown in fig. 2 to 5, in order to supply the lubricant in the oil storage cylinder 5 conveniently, the oil outlet assembly 7 includes a partition plate 11, an oil drainage rod 12, a sealing block 13, a reciprocating spring 14 and a reciprocating mechanism 15, the partition plate 11 is fixed inside the oil outlet cap 6, the partition plate 11 is attached to the bottom surface of the oil storage cylinder 5, two ends of the oil drainage rod 12 respectively penetrate through the inside of the partition plate 11 and the bottom of the oil outlet cap 6 in a sliding manner, the top end of the oil drainage rod 12 extends into the oil storage cylinder 5 and is fixed with a fixing block 16, the sealing block 13 is fixedly sleeved on the outer side of the oil drainage rod 12, the partition plate 11 is provided with a sealing hole 17 matched with the sealing block 13, two ends of the reciprocating spring 14 are respectively fixedly connected with the partition plate 11 and the fixing block 16, and the reciprocating mechanism 15 is installed on the installation plate 2 and is in transmission connection with the bottom of the oil drainage rod 12.

Meanwhile, as shown in fig. 6 and 7, in order to facilitate intermittent supply of the lubricant, the reciprocating mechanism 15 includes a reciprocating cam 18, a roller 19, a stepped shaft 20, a fixed bearing seat 21, a movable bearing seat 22, a spline shaft 23, a spline housing 24 and a first bevel gear 25, the reciprocating cam 18 is fixedly sleeved outside the middle of the stepped shaft 20, the right end of the stepped shaft 20 is rotatably connected with the fixed bearing seat 21, the spline shaft 23 is fixed at the left end of the stepped shaft 20, the spline housing 24 is rotatably connected with the movable bearing seat 22, the first bevel gear 25 is fixed at the left end of the spline housing 24, the first bevel gear 25 is slidably connected with the spline shaft 23 through the spline housing 24, and the output end of the transmission assembly 8 is in transmission connection with the first bevel gear 25.

In addition, as shown in fig. 6, in order to control the movement of the reciprocating mechanism 15 conveniently, a sliding block 26 is fixed at the bottom of the movable bearing seat 22, a sliding rail 27 matched with the sliding block 26 is fixed on the mounting plate 2, electric push rods 28 are installed at the front and rear sides of the movable bearing seat 22, one end of each electric push rod 28 is fixedly connected with the fixed assembly 9, and the first bevel gear 25 and the transmission assembly 8 can be separated and combined through the electric push rods 28.

Meanwhile, as shown in fig. 9, in order to facilitate the addition of lubricating oil, the top of the oil storage barrel 5 is in threaded connection with an injection cover 40, and the oil storage barrel is made of transparent plastic material.

As shown in fig. 4, in order to increase the sealing performance of the bottom of the oil discharge cap 6, a seal ring 41 is fixed to the bottom of the oil discharge cap 6, and the inner wall of the seal ring 41 contacts the outside of the drain rod 12.

When carrying out oiling to ball screw pair 3: firstly, the electric push rod 28 is started to work, the electric push rod 28 drives the movable bearing seat 22 to move towards the left side, the movable bearing seat 22 can drive the first bevel gear 25 with the spline sleeve 24 mounted on the movable bearing seat to move towards the left side, the first bevel gear 25 with the spline sleeve 24 slides towards the left side on the spline shaft 23, so that the first bevel gear 25 is in butt joint with the transmission assembly 8, the ball screw pair 3 is started to work after the butt joint is completed, the ball screw pair 3 drives the ram to move up and down, power is transmitted to the first bevel gear 25 through the transmission assembly 8, the first bevel gear 25 can drive the stepped shaft 20 to rotate, the stepped shaft 20 drives the reciprocating cam 18 to continuously rotate, the reciprocating cam 18 is matched with the roller 19 when rotating, the oil drain rod 12 connected with the roller 19 can reciprocate up and down, the oil drain rod 12 can drive the sealing block 13 to reciprocate up and down, so that the sealing hole 17 is intermittently performed, when the oil storage cylinder 5 above the partition plate 11 is opened, the lubricating grease can flow into the lower part of the partition plate 11 through the oil drain hose 10, the lubricating grease can continuously flow into the lubricating oil drain pipe, and the lubricating nut on the ball screw pair 3, so that the lubricating grease can be intermittently and the lubricating grease can be completely replaced by manpower, and the manual lubricating grease can be automatically saved; the ball screw pair 3 can be controlled to run up and down for 5-10 periods by an electric control system on the machine tool, and the oil supply frequency is ensured to be between 5-10 times, so that the oil supply quantity is kept sufficient and the pollution to the environment caused by excessive filling is prevented.

Example 2

As shown in fig. 8, this embodiment further describes example 1, the transmission assembly 8 in the figure includes a transmission rod 29, a first spur gear 30, a second spur gear 31, a transmission shaft 32, a support plate 33, a rotating plate 34, a limiting rod 35 and a second bevel gear 36, a bottom end of the transmission rod 29 is fixedly connected to a top of a ram on the column 1, a top end of the transmission rod 29 penetrates through the mounting plate 2 and extends vertically upward, a bottom of the first spur gear 30 is rotatably connected to the rotating plate 34 through a bearing, a bottom of the rotating plate 34 is fixedly connected to a top of the mounting plate 2 through a plurality of limiting rods 35, an outer side of the transmission rod 29 is provided with a thread groove, a middle hole of the first spur gear 30 is internally provided with an internal thread, the first spur gear 30 is connected to an outer side of the transmission rod 29 through an internal thread and is engaged with the second spur gear 31, the second spur gear 31 is fixedly sleeved on an outer side of the transmission shaft 32, the support plate 33 is rotatably connected to the transmission shaft 32 through a bearing, and a bottom end of the support plate is fixed to the mounting plate 2, the second bevel gear 36 is fixed to a top of the transmission assembly 8, which facilitates power transmission of the ball screw pair 3.

When transmitting the power of the ball screw pair 3: the ram can run up and down for 5-10 cycles by controlling the ball screw pair 3 by an electric control system on the machine tool, so that the ram can run up and down for 5-10 cycles, the transmission rod 29 can be driven to move up and down in the process of moving up and down of the ram, the transmission rod 29 is in threaded connection with the first straight gear 30, and the first straight gear 30 is in rotational connection with the rotating plate 34, so that the first straight gear 30 can be driven to rotate along with the lifting and lowering of the transmission rod 29, namely the second straight gear 31 is driven to rotate, the transmission shaft 32 fixed with the second straight gear 31 is driven to rotate, the transmission shaft 32 can drive the second bevel gear 36 to rotate, the second bevel gear 36 drives the first bevel gear 25 to rotate, and the power of the ball screw pair 3 is transmitted to the first bevel gear 25.

Example 3

As shown in fig. 9, this embodiment further illustrates embodiment 1, the fixing assembly 9 in the figure includes two fixing frames 37, two arc-shaped clamping plates 38 and two bolts 39, the two fixing frames 37 and the two arc-shaped clamping plates 38 are both provided, the two arc-shaped clamping plates 38 are respectively fixed at the top ends of the two fixing frames 37, the inner sides of the two arc-shaped clamping plates 38 are in clamping fit with the outer wall of the oil storage cylinder 5, the left end and the right end of the two arc-shaped clamping plates 38 are both fixedly connected through the bolts 39, the bottom end of the fixing frame 37 is fixed on the mounting plate 2, one end of the electric push rod 28 is fixed on the outer side wall of the fixing frame 37, and the oil storage cylinder 5 is conveniently fixed through the fixing assembly 9.

When the oil reservoir 5 is fixed: only need align two arc splint 38 clamp in the outer wall of storage cylinder 5, then screw in bolt 39 and fix arc splint 38 can.

In the scheme, after the lubricant storage barrel is used for a period of time, a worker can clearly observe the amount of the lubricant in the lubricant storage barrel 5 through the transparent lubricant storage barrel 5, and if the lubricant is found to be in the bottom, the injection cover 40 is screwed by hand to open the lubricant storage barrel 5, so that new lubricant is poured into the lubricant storage barrel 5, and the lubricant is replenished.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a horizontal machining center of two main shafts of ram formula, is including installing two stand (1) above the base, one of them be fixed with mounting panel (2) on stand (1), one side symmetry of stand (1) is equipped with ball screw pair (3), its characterized in that: a lubricating device (4) for oiling the ball screw pair (3) is arranged on the mounting plate (2); lubricating arrangement (4) are including an oil storage section of thick bamboo (5), oil outlet cap (6), oil outlet assembly (7), drive assembly (8), fixed subassembly (9) and oiling hose (10), an oil storage section of thick bamboo (5) passes through fixed subassembly (9) fixed mounting be in on mounting panel (2), oil outlet cap (6) threaded connection be in the bottom of an oil storage section of thick bamboo (5), oil outlet assembly (7) are installed oil storage section of thick bamboo (5) with between oil outlet cap (6), the one end of oiling hose (10) with the inside intercommunication of oil outlet cap (6), just the other end of oiling hose (10) with the nut on ball screw pair (3) is linked together with the channel of lead screw, install drive assembly (8) on mounting panel (2).

2. The ram-type double-spindle horizontal machining center according to claim 1, characterized in that: go out oily subassembly (7) including baffle (11), draining pole (12), sealed piece (13), reciprocal spring (14) and reciprocating mechanism (15), baffle (11) are fixed go out the inside of oil cap (6), baffle (11) with the bottom surface of an oil storage section of thick bamboo (5) is laminated mutually, the both ends of leaking oil pole (12) slide respectively and run through the inside of baffle (11) with the bottom of going out oil cap (6), the top of leaking oil pole (12) extends to the inside of an oil storage section of thick bamboo (5) is fixed with fixed block (16), sealed piece (13) are fixed to be overlapped in leak the outside of oil pole (12), seted up on baffle (11) with sealed hole (17) of sealed piece (13) looks adaptation, the both ends of reciprocal spring (14) respectively with baffle (11) with fixed block (16) fixed connection, reciprocating mechanism (15) are installed on mounting panel (2) and with the bottom transmission of leaking oil pole (12) is connected.

3. The ram-type double-spindle horizontal machining center according to claim 2, characterized in that: the reciprocating mechanism (15) comprises a reciprocating cam (18), a roller (19), a stepped shaft (20), a fixed bearing seat (21), a movable bearing seat (22), a spline shaft (23), a spline housing (24) and a first bevel gear (25), the reciprocating cam (18) is fixedly sleeved on the outer side of the middle of the stepped shaft (20), the right end of the stepped shaft (20) is rotatably connected with the fixed bearing seat (21), the spline shaft (23) is fixed at the left end of the stepped shaft (20), the spline housing (24) is rotatably connected with the movable bearing seat (22), the first bevel gear (25) is fixed at the left end of the spline housing (24), the first bevel gear (25) is slidably connected with the spline shaft (23) through the spline housing (24), and the output end of the transmission assembly (8) is in transmission connection with the first bevel gear (25).

4. The ram-type double-spindle horizontal machining center according to claim 3, characterized in that: the bottom of movable bearing seat (22) is fixed with slider (26), be fixed with on mounting panel (2) with slide rail (27) of slider (26) looks adaptation, electric putter (28) are all installed to both sides around movable bearing seat (22), the one end of electric putter (28) with fixed subassembly (9) fixed connection.

5. The ram-type double-spindle horizontal machining center according to claim 3, characterized in that: drive assembly (8) are including transfer line (29), first spur gear (30), second spur gear (31), transmission shaft (32), backup pad (33), rotor plate (34), gag lever post (35) and second bevel gear (36), the bottom of transfer line (29) with ram top fixed connection on stand (1), the top of transfer line (29) is run through mounting panel (2) and vertical upwards extend, the bottom of first spur gear (30) pass through the bearing with rotor plate (34) rotate and are connected, the bottom of rotor plate (34) is through a plurality of gag lever post (35) with the top fixed connection of mounting panel (2), the thread groove has been seted up in the outside of transfer line (29), the mesopore internal thread that is carved with of first spur gear (30), first spur gear (30) pass through the internal thread with the outside threaded connection of transfer line (29), and with second spur gear (31) meshing connection, second spur gear (31) fixed cover is in the outside of transmission shaft (32), backup pad (33) pass through the internal thread with the transmission shaft is fixed at second spur gear (32) the transmission shaft (32) and second bevel gear (36) top fixed on its mounting panel (2).

6. The ram-type double-spindle horizontal machining center according to claim 4, wherein: fixed subassembly (9) are including mount (37), arc splint (38) and bolt (39), mount (37) with arc splint (38) all are equipped with two, two arc splint (38) are fixed respectively two the top of mount (37), two the inboard of arc splint (38) with the outer wall clamp cooperation of oil storage section of thick bamboo (5), and two both ends all pass through about arc splint (38) bolt (39) fixed connection, the bottom mounting of mount (37) is in on mounting panel (2), the one end of electric putter (28) is fixed on the lateral wall of mount (37).

7. The ram-type double-spindle horizontal machining center according to claim 1, characterized in that: the top threaded connection of oil storage barrel (5) has injection lid (40), the oil storage barrel adopts transparent plastic material to make.

8. The ram-type double-spindle horizontal machining center according to claim 2, characterized in that: and a sealing ring (41) is fixed at the bottom of the oil outlet cap (6), and the inner wall of the sealing ring (41) is in contact with the outer side of the oil drain rod (12).