CN217750359U - Unloading lathe bed guide rail for heavy machine tool - Google Patents
Unloading lathe bed guide rail for heavy machine tool Download PDFInfo
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- CN217750359U CN217750359U CN202221177944.2U CN202221177944U CN217750359U CN 217750359 U CN217750359 U CN 217750359U CN 202221177944 U CN202221177944 U CN 202221177944U CN 217750359 U CN217750359 U CN 217750359U
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- guide rail
- unloading
- load
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- lathe bed
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Abstract
The utility model discloses an off-load lathe bed guide rail for heavy lathe relates to heavy lathe technical field, leads to the guide rail to warp easily for solving current lathe bed guide rail bearing heavy lathe, causes the lathe operation shake, and the lathe precision reduces or the lost technical problem. Including two main guide rails and sliding connection in two the slide on main guide rail upper portion, two be provided with the off-load guide rail between the main guide rail, the off-load guide rail with two main guide rail parallel arrangement, off-load guide rail upper portion is provided with the off-load oil pocket, the off-load oil pocket with the off-load guide rail forms confined volume space, the slide is located the upper portion of off-load oil pocket, the utility model discloses take the method that increases an off-load guide rail, let ninety weight of lathe percent bear by the off-load guide rail, the main guide rail of lathe bed only needs to play the guide effect to increase the stability when the lathe moves, improve the precision of lathe.
Description
Technical Field
The utility model relates to a heavy lathe technical field, in particular to off-load lathe bed guide rail for heavy lathe.
Background
The bed guide rails of the existing heavy floor type boring and milling machine and frame type gantry type boring and milling machine mostly adopt a left and right double hydrostatic guide rail structure, all the weight above the guide rails acts on the bed guide rails, and the heavy machine tool usually exceeds 100 tons. Although the hydrostatic guide rail avoids direct contact and friction between metals, the guide rail surface is easy to deform due to the weight of more than 100 tons, in addition, the horizontal precision of the machine body also changes along with external vibration, temperature change and impact during the machining and running of a machine tool, in addition, oil leakage and the like are caused by oil circuit blockage, seal aging or damage, the pressure of an unloading oil cavity of the hydrostatic system is easy to be unstable or lose pressure, the proper and uniform oil film thickness and hydrostatic rigidity cannot be established, the metal surface of the guide rail is in direct contact, the guide rail is abraded or pulled, the running crawls or shakes, and the precision of the machine tool is reduced or lost. The hydrostatic guideway with the structure has poor operation stability and higher later maintenance pressure, and once the guideway is damaged, the maintenance cost is very high.
The guide rail adopting the linear guide rail or the polytetrafluoroethylene friction pair also deforms because the machine tool is pressed by the weight of the machine tool, so that the machine tool shakes, and the precision of the machine tool is reduced or lost.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: in order to solve the current heavy lathe weight and exert pressure and lead to the guide rail to warp on the lathe bed, cause the lathe operation shake, lathe precision reduces or the technical problem who loses, the utility model provides an off-load lathe bed guide rail for heavy lathe bed.
The utility model discloses a realize above-mentioned purpose and specifically adopt following technical scheme:
the utility model provides an off-load lathe bed guide rail for heavy lathe, includes two leading rails and sliding connection in two the slide on leading rail upper portion, two be provided with the off-load guide rail between the leading rail, the off-load guide rail with two leading rail parallel arrangement, off-load guide rail upper portion is provided with the off-load oil pocket, the off-load oil pocket with the off-load guide rail forms confined volumetric space, the slide is located the upper portion in off-load oil pocket.
The unloading guide rail is installed between two original main guide rails, the unloading guide rail is kept parallel to the axial surfaces of the two main guide rails, unloading oil cavities are formed in the upper portions of the unloading guide rails, a closed volume space is formed by the unloading oil cavities and the unloading guide rails, oil with stable pressure is injected into the volume space, the oil with the pressure supports the components above the sliding seat, the sliding seat is suspended on the unloading guide rail by a small distance, the sliding seat moves on the sliding seat through oil film friction, the problem that the two existing guide rails not only have a guiding effect, but also bear the weight of the components above the sliding seat is solved, the added unloading guide rail mainly bears the weight of all the components above the sliding seat, ninety percent of the weight of a machine tool is borne by the unloading guide rail, the main guide rail only needs to play a guiding effect, and the unloading guide rail mainly bearing the weight of the machine tool is unloaded by a plurality of hydraulic oil cylinders through the applied oil pressure so that the weight of the machine tool is transferred to the ground. The unloading guide rail is independent of the main guide rail and is not physically connected with the main guide rail, the unloading guide rail is installed between the two main guide rails and is only in a parallel position relation with the two main guide rails in space, therefore, even if the unloading guide rail is not transferred to the main guide rail due to stress deformation, the main guide rail only plays a guiding role and only bears small force, the main guide rail is not subjected to stress deformation, the phenomenon that the machine tool shakes during operation is avoided, the geometric precision of the machine tool cannot bear overlarge weight and is damaged, and the precision of the machine tool can be kept stable for a long time.
Preferably, the lower end of the unloading guide rail is sequentially provided with a first spherical gasket, a cushion block, a first adjustable sizing block and an unloading guide rail foot.
Preferably, the unloading guide rail is connected with an unloading guide rail anchor through at least two tie bolts, and the first adjustable sizing block, the cushion block and the first spherical washer are fixed between the unloading guide rail and the unloading guide rail anchor.
Preferably, the edge of the upper end face of the unloading guide rail foot close to the edge is provided with a threaded through hole matched with the tension bolt, the boss is protruded on the transverse shaft surface at the bottom end of the unloading guide rail, and the boss is provided with a threaded through hole matched with the tension bolt.
Preferably, the unloading guide rail is connected with an unloading guide rail anchor through at least two tension bolts.
Preferably, the side wall of the unloading guide rail anchor is provided with a plurality of convex blocks.
Preferably, off-load lathe bed guide rail still includes the lathe bed, lathe bed preformed hole has been seted up to the lathe bed.
Preferably, the diameter of the lathe bed preformed hole is matched with the diameter of the end face of an unloading guide rail anchor.
Preferably, the lathe bed is arranged on the ground through unloading guide rail feet and foot bolts.
Preferably, the foundation bolt is arranged at the lower end of the lathe bed, a second adjustable pad and a second spherical washer are sequentially placed between the foundation bolt and the lathe bed, and a round hole connected with the foundation bolt in a matched mode is formed in the bottom end of the lathe bed.
Preferably, the unloading guide rail is provided with an unloading oil cavity, and the unloading oil cavity is provided with an unloading oil cavity hole.
The utility model discloses following beneficial effect has:
1. the utility model discloses an increase the design of off-load guide rail, the off-load guide rail is located between two main rails of lathe bed, structurally only there is the parallel position relation, there is not any hard joint on the physical machinery, even the off-load guide rail also can not transmit on main rail because of the atress warp like this, make ninety percent weight of lathe be born by the off-load guide rail, to the fluid of confined volume space injection steady pressure, pressure fluid holds up the part more than the slide, make the slide suspension a very little distance on the off-load guide rail, play the off-load effect, main rail of lathe bed only need play the guide effect, the very big reduction of lathe weight that main rail bore, the life of main rail has been increased, thereby increase the stability when the lathe moves, improve the precision of lathe bed, improve the geometrical accuracy stability of lathe bed guide rail, the precision of lathe also can be promoted.
2. The utility model discloses in, through the installation of lathe bed, leading rail and off-load guide rail and each lower margin, accomplish the utility model discloses a constructional device, simple structure has simplified the structure of main lathe bed guide rail, reduces manufacturing cost and operation maintenance cost of maintenance, and the convenience is maintained from work to the lathe bed. The unloading guide rail mainly bearing pressure is formed by unloading the weight of a machine tool through the applied oil pressure by a plurality of hydraulic oil cylinders so as to transfer the weight of the machine tool to the ground, and the support of the unloading guide rail is a follow-up support, so that the operation precision of the machine tool cannot be influenced by deformation or position error with a guide rail of a machine tool body. The lathe bed is convenient to transfer the weight of the lathe born by the unloading guide rail to the ground through the arrangement of the unloading guide rail anchor, and the effect of stabilizing the lathe bed is also achieved by reducing the bearing of the unloading guide rail.
3. The utility model is suitable for a heavy lathe such as heavy floor type boring and milling machine and heavy frame-type longmen boring and milling machine.
4. The utility model discloses in, through the lug that off-load guide rail lower margin set up for off-load guide rail lower margin buries in the ground, when carrying out the lathe operation, the lug can play the effect of stabilizing the lathe bed, improves the stability of lathe bed, avoids the lathe shake.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a schematic view of the pre-installation structure of the unloading guide rail of the present invention;
fig. 3 is a schematic diagram of the structure of the bed body of the present invention;
reference numerals: 1-a main guide rail; 2, a lathe bed; 3-a slide seat; 4-unloading guide rail; 5-unloading oil cavity; 6-a first adjustable sizing block; 7-a second adjustable sizing block; 8-unloading guide rail anchor; 9-tensioning bolts; 10-a first spherical washer; 11-a second spherical washer; 12-cushion blocks; 13-foundation bolts; and 14-reserving holes on the lathe bed.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.
As shown in fig. 1 to 3, the present embodiment provides.
Example 1
The utility model provides an off-load lathe bed guide rail for heavy lathe, includes two main guide rail 1 and sliding connection in two slide 3 on 1 upper portion of main guide rail, two be provided with off-load guide rail 4 between the main guide rail 1, off-load guide rail 4 and two 1 parallel arrangement of main guide rail, 4 upper portions of off-load guide rail are provided with off-load oil pocket 5, off-load oil pocket 5 with off-load guide rail 4 forms confined volume space slide 3 is placed to two 1 upper ends of main guide rail, and slide 3 and 1 constitution X axle kinematic pair of main guide rail, and slide 3 are located the upper portion of off-load oil pocket 5.
In the embodiment, an unloading guide rail 4 is installed between two original main guide rails 1, the unloading guide rail 4 is kept parallel to the axial surfaces of the two main guide rails 1, an unloading oil cavity 5 is arranged at the upper part of the unloading guide rail 4, the unloading oil cavity 5 and the unloading guide rail 4 form a closed volume space, oil with stable pressure is injected into the volume space, the pressure oil supports the parts above the sliding seat 3, the sliding seat is suspended on the unloading guide rail 4 for a small distance, and the sliding seat 3 moves on the unloading guide rail through oil film friction.
In the embodiment, a method of adding one unloading guide rail 4 is adopted, the weight of all parts above the sliding seat 3 is mainly borne, ninety percent of the weight of the machine tool is borne by the unloading guide rail 4, and the main guide rail 1 only needs to play a role in guiding. The relief guide 4 is independent of the main guide 1 and has no physical connection to the main guide 1. The unloading guide rail 4 is positioned between the two main guide rails 1, and the unloading guide rail 4 is only in a parallel position relation with the two main guide rails 1 in space, so that even if the unloading guide rail 4 is deformed due to stress and cannot be transmitted to the main guide rails 1, the main guide rails 1 only play a role in guiding and only bear small force. Therefore, the main guide rail 1 cannot be stressed and deformed, the geometric accuracy of the machine tool cannot be damaged, and the accuracy of the machine tool can be kept stable for a long time. The main guide rail 1 structural member can also be made to be relatively thin, or a standard linear guide rail or a plastic-coated lubricating guide rail and other types with simple structure and lower operation and maintenance cost are adopted. The unloading guide rail 4 mainly bearing pressure is formed by unloading the weight of a machine tool through the applied oil pressure by a plurality of hydraulic oil cylinders so as to transmit the weight of the machine tool to the ground. And the support of the unloading guide rail 4 is a follow-up support, so that the running precision of the machine tool cannot be influenced by deformation or position error with the guide rail of the machine tool body.
Example 2
Based on embodiment 1, the lower end of the unloading guide rail 4 is sequentially provided with a first spherical washer 10, a cushion block 12, a first adjustable sizing block 6 and an unloading guide rail foot 8.
In this embodiment, the first adjustable sizing block 6 is used for leveling the unloading guide rail 4 of the first lathe bed, and also transfers the weight of the lathe bed to the ground, the cushion block 12 is used for a medium between the unloading guide rail anchor 8 and the first adjustable sizing block 6, so as to play a role of compensating a size chain, and further control the height of the unloading guide rail 4, and the first spherical washer 10 is used for ensuring the tight contact between the first lathe bed 2 and the first adjustable sizing block 6 by utilizing the characteristic that the degree of freedom of an object on a spherical surface is not limited.
Example 3
Based on embodiment 2, the unloading guide rail 4 is connected with the unloading guide rail anchor 8 through at least two tension bolts 9.
In this embodiment, the two tie bolts 9 are arranged to enhance the connection stability of the unloading guide rail 4 and the unloading guide rail anchor 8, the first adjustable sizing block 6, the cushion block 12 and the first spherical washer 10 are fixed between the unloading guide rail 4 and the unloading guide rail anchor 8, and the tie bolts 9 and the adjustable sizing block spherical washer 10 jointly play a role in adjusting the straightness and distortion of the unloading guide rail 4.
Example 4
Based on embodiment 3, the edge that is close to of the upper end face of the unloading guide rail foot 8 is provided with a threaded through hole matched with the tension bolt 9, the boss is protruded on the transverse shaft face at the bottom end of the unloading guide rail 4, and the boss is provided with a threaded through hole matched with the tension bolt 9.
In this embodiment, through the threaded through holes respectively formed in the unloading guide rail 4 and the unloading guide rail anchor 8, the tension bolt 9 can conveniently pass through the threaded through hole to further fix the first adjustable sizing block 6, the cushion block 12 and the first spherical washer 10 between the unloading guide rail 4 and the unloading guide rail anchor 8, so as to obtain an integral structure.
Example 5
Based on embodiment 3 or embodiment 4, the side wall of the unloading guide foot 8 is provided with a plurality of convex blocks.
In the embodiment, the unloading guide rail foot 8 is buried in the ground through the convex block arranged on the unloading guide rail foot 8, when the machine tool runs, the friction of the unloading guide rail foot 8 is increased, the unloading guide rail foot 8 is buried and is difficult to loosen, the convex block can play a role in stabilizing the machine tool body, the stability of the machine tool body is improved, and the machine tool is prevented from shaking.
Example 6
Based on embodiment 1 and embodiment 5, the unloading lathe bed guide rail further comprises a lathe bed 2, the lathe bed 2 is provided with a lathe bed preformed hole 14, and the aperture of the lathe bed preformed hole 14 is matched with the diameter of the end face of the unloading guide rail foot 8.
In this embodiment, after the unloading guide rail 4 is connected to the unloading guide rail anchor 8 through the tension bolt 9 based on embodiment 5 to obtain an integrated structure, the integrated structure is easily passed through the bed body prepared hole 14 formed in the bed body 2, the unloading guide rail anchor 8 is placed on the ground after passing through the bed body prepared hole 14, and since the length of the unloading guide rail 4 is greater than the aperture of the bed body prepared hole 14, the unloading guide rail 4 cannot pass through the bed body prepared hole 14, the unloading guide rail 4 is placed on the end face of the bed body 2, and the aperture of the bed body prepared hole 14 is consistent with the diameter of the contact area of the unloading guide rail anchor 8, so that the unloading guide rail anchor 8 can pass through the bed body prepared hole 14.
Example 7
Based on embodiment 6, the lathe bed 2 is arranged on the ground through the unloading guide rail anchor 8 and the anchor bolt 13, the anchor bolt 13 is arranged at the lower end of the lathe bed 2, the second adjustable pad 7 and the second spherical washer 11 are sequentially arranged between the anchor bolt 13 and the lathe bed 2, and the bottom end of the lathe bed 2 is provided with a round hole in matched connection with the anchor bolt 13.
In this embodiment, the lathe bed 2 is supported on the ground through the unloading guide rail anchor 8 and the anchor bolt 13, the setting of the very second spherical washer 11 of the adjustable shim 7 of second has been placed in proper order between anchor bolt 13 and the lathe bed 2, the main guide rail 1 leveling usefulness that is used for adjusting the lathe bed of the adjustable shim 7 of second also transmits the weight of lathe for the setting of ground, the setting of second spherical washer 11 is used for utilizing the unrestricted characteristics of object degree of freedom on the sphere, guarantees the in close contact between lathe bed 2 and the adjustable shim 7 of second, through the round hole that the lathe bed 2 was seted up, be convenient for anchor bolt 13 and lathe bed 2 to be connected.
Example 8
Based on the embodiment 1, the unloading oil cavity 4 is provided with an unloading oil cavity hole.
In this embodiment, through the unloading oil cavity hole formed in the unloading oil cavity 4, oil with stable pressure can be injected into the unloading oil cavity 5 through the unloading oil cavity hole, and the pressure oil supports all the components above the sliding base 3, so that the sliding base 3 is suspended on the unloading guide rail 4 by a small distance, and the sliding base 3 is rubbed by an oil film when moving above the unloading guide rail 4.
To sum up, the utility model relates to an installation method of off-load lathe bed guide rail for heavy lathe does, at first lifts lathe bed 2 and puts on a set of height case such as place in advance, and height case height is greater than 0.8 meter, makes things convenient for constructor at 2 below concatenation operations of lathe bed. The foundation bolts 13 are connected with round holes arranged at the lower end of the lathe bed 2, and the connection mode of the two main guide rails 1 and the lathe bed 2 is consistent with the connection mode of the existing guide rails and the lathe bed 2. The unloading guide rail 4 is arranged between two main guide rails 1 of a lathe bed 2, the unloading guide rail 4 is arranged in a mode that unloading guide rail feet 8 are placed on the ground regularly according to the distance of 0.5 m, then a first adjustable sizing block 6, a cushion block 12 and a first spherical washer 10 are sequentially placed on the unloading guide rail feet 8, then the unloading guide rail 4 is placed on the unloading guide rail feet 8, bolts are threaded and screwed 9, and therefore all the part unloading guide rail 4, the first adjustable sizing block 6, the cushion block 12, the first spherical washer 10 and the unloading guide rail feet 8 are connected into a whole. And then hoisting the group of unloading guide rail feet 8 to pass through a reserved through hole 14 of the bed body 2 from top to bottom to rest on the bed body. And circular holes in the middle of all the feet and the lathe body have certain gaps, the leveling and grouting are roughly adjusted, the lathe body is leveled after grouting cement is dried, and then the unloading guide rail 4 is leveled by taking the main guide rail 1 as a reference. The straightness of the unloading guide rail 4 is adjusted by a second adjustable sizing block 6, and the distortion is adjusted by a left tensioning bolt 9 and a right tensioning bolt 9. The unloading guide rail 4 is required to be parallel to the main guide rail 1, and the unloading guide rail is twisted by 0.01/1000, namely, the installation of the unloading lathe bed guide rail for the heavy machine tool is completed.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. The utility model provides an off-load lathe bed guide rail for heavy lathe, includes two main guide rail (1) and sliding connection in two slide (3) on main guide rail (1) upper portion, its characterized in that, two be provided with off-load guide rail (4) between main guide rail (1), off-load guide rail (4) and two main guide rail (1) parallel arrangement, off-load guide rail (4) upper portion is provided with off-load oil pocket (5), off-load oil pocket (5) with off-load guide rail (4) form confined volume space, slide (3) are located the upper portion of off-load oil pocket (5).
2. An unloading lathe bed guide rail for a heavy machine tool according to claim 1, characterized in that a first spherical washer (10), a cushion block (12), a first adjustable sizing block (6) and an unloading guide rail anchor (8) are sequentially arranged at the lower part of the unloading guide rail (4), the unloading lathe bed guide rail further comprises a lathe bed (2), and a lathe bed reserved hole (14) is formed in the lathe bed (2).
3. An unloading bed guide for a heavy duty machine tool according to claim 2, characterized in that the unloading guide (4) is connected to an unloading guide foot (8) by at least two tie bolts (9).
4. An unloading lathe bed guide rail for a heavy machine tool according to claim 3, characterized in that the upper end surface of the unloading guide rail anchor (8) near the edge is provided with a threaded through hole matched with the tension bolt (9), the bottom end transverse shaft surface of the unloading guide rail (4) is protruded to be a boss, and the boss is provided with a threaded through hole matched with the tension bolt (9).
5. An unloading bed guide rail for a heavy duty machine tool according to claim 4, characterized in that the side wall of the unloading guide rail foot (8) is provided with a plurality of projections.
6. An unloading bed guide rail for a heavy-duty machine tool according to claim 5, characterized in that the bore diameter of the bed reserve hole (14) matches the end face diameter of the unloading bed foot (8).
7. An unloading bed guide for a heavy machine tool according to claim 2, characterised in that the bed (2) is placed on the ground by means of unloading guide foot (8) and foot bolt (13).
8. The unloading lathe bed guide rail for the heavy-duty machine tool according to claim 7, characterized in that the foundation bolt (13) is arranged at the lower end of the lathe bed (2), a second adjustable pad (7) and a second spherical washer (11) are sequentially arranged between the foundation bolt (13) and the lathe bed (2), and a round hole matched and connected with the foundation bolt (13) is formed in the bottom end of the lathe bed (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221177944.2U CN217750359U (en) | 2022-05-17 | 2022-05-17 | Unloading lathe bed guide rail for heavy machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221177944.2U CN217750359U (en) | 2022-05-17 | 2022-05-17 | Unloading lathe bed guide rail for heavy machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217750359U true CN217750359U (en) | 2022-11-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221177944.2U Active CN217750359U (en) | 2022-05-17 | 2022-05-17 | Unloading lathe bed guide rail for heavy machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217750359U (en) |
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- 2022-05-17 CN CN202221177944.2U patent/CN217750359U/en active Active
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