CN115770915A - Gantry machining unit of electric discharge machine tool - Google Patents
Gantry machining unit of electric discharge machine tool Download PDFInfo
- Publication number
- CN115770915A CN115770915A CN202211541348.2A CN202211541348A CN115770915A CN 115770915 A CN115770915 A CN 115770915A CN 202211541348 A CN202211541348 A CN 202211541348A CN 115770915 A CN115770915 A CN 115770915A
- Authority
- CN
- China
- Prior art keywords
- axis
- ram
- guide rail
- slide
- main shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Machine Tool Units (AREA)
Abstract
The invention relates to a gantry machining unit of an electric spark machine tool, which comprises a C-axis mechanism, a Z-axis mechanism and an X-axis mechanism; the C-axis mechanism is characterized in that a main shaft is erected in a main shaft box, a support frame at the bottom end of the main shaft box is provided with a chuck which is driven by the main shaft to rotate around the C axis by 360 degrees, and a Z-axis guide rail is fixed on the back of the main shaft box; the Z-axis mechanism is characterized in that a Z-axis screw rod is arranged on a ram, a slide block for sliding a Z-axis guide rail is arranged on the front surface of the ram, and the Z-axis screw rod drives the main shaft box to slide up and down along a Z axis; the X-axis mechanism is characterized in that an X-axis upper guide rail with an upward slide rail surface and an X-axis lower guide rail with a forward slide rail surface are arranged on a portal frame, an upper slide block which is connected with the X-axis upper guide rail in an up-and-down sliding mode is arranged on the back surface of the ram, and lower slide blocks which are connected with the X-axis lower guide rail in a sliding mode are arranged on two tail wings of the ram respectively to form a three-point positioning anti-overturning structure for the ram to slide left and right along the X axis. The device has the advantages of compact structure, good rigidity and high processing precision.
Description
Technical Field
The invention relates to a processing unit of an electric spark machine tool, in particular to a gantry processing unit of the electric spark machine tool.
Background
The electric spark machine tool is commonly provided with a column structure and a bull-nose structure.
The electric spark machine tool with a column structure realizes the movement of X/Y axes by means of the movement of a workbench, the precision of the X/Y axes is closely related to the weight of a workpiece, and the dynamic precision and the rigidity of the X/Y axes are influenced by the precision. Meanwhile, the stroke of the X/Y axis is limited because the workbench needs to move in a narrow and limited space, if a slightly larger workpiece needs to be designed and processed, the base and the upright post of the machine tool are enlarged, the processing area is obviously smaller relative to the size of the machine tool, and the rigidity is also deteriorated along with the extension of the cross beam of the upright post.
For an electric spark machine tool with a cow-head type structure, the position of a working head of the electric spark machine tool can cause stress change of each component along with the movement of a ram, the precision can be unstable after long-term use, meanwhile, the rigidity is deteriorated due to the fact that the flat ram is overhung too long, the stroke of a main shaft is limited, and the error of the parallelism of a guide rail is amplified along with the increase of the deformation; the design of the structure requires that the machine tool body is heavy and the working head is light, so that the machine tool body is slowly changed by temperature, the working head is sensitive to temperature change, the structure with uneven heating can cause the precision of the machine tool to be changed by temperature change, and the thermal stability is poor.
Since the machining units of these two electric discharge machines have the above problems, which directly affect the machining accuracy and surface quality of the part or the die in practical use, it is necessary to design a new machining unit of the electric discharge machine.
Disclosure of Invention
The invention aims to provide a gantry machining unit of an electric discharge machine tool, which has the advantages of compact structure, good rigidity and high machining precision.
The invention aims to realize the purpose, and the gantry machining unit of the electric spark machine tool comprises a C-axis mechanism, a Z-axis mechanism and an X-axis mechanism; the C-axis mechanism is characterized in that a main shaft is erected in a main shaft box, a support frame at the bottom end of the main shaft box is provided with a chuck which is driven by the main shaft to rotate around the C axis by 360 degrees, and a Z-axis guide rail is fixed on the back of the main shaft box; the Z-axis mechanism is characterized in that a Z-axis screw rod is arranged on a ram, a slide block for a Z-axis guide rail to slide is arranged on the front surface of the ram, the slide block is driven by the Z-axis screw rod to drive a spindle box to slide up and down along a Z axis, and a Z-axis grating ruler for measuring the up-down stroke of a spindle along the Z axis direction is arranged on the side surface of the ram; the X-axis mechanism is characterized in that an X-axis upper guide rail with an upward slide rail surface and an X-axis lower guide rail with a forward slide rail surface are arranged on a portal frame, an upper slide block which is connected with the X-axis upper guide rail in an up-and-down sliding manner is arranged on the back surface of the ram, and lower slide blocks which are connected with the side surface of the X-axis lower guide rail in a sliding manner are respectively arranged on two tail wings of the ram to form a three-point positioning sliding anti-overturning structure of the ram; the ram is driven by an X-axis screw rod arranged on a portal frame to slide left and right along an X axis, and an X-axis grating ruler for measuring the left and right strokes of the ram along the X axis direction is arranged on the portal frame.
According to the invention, the left and right upright posts of the portal frame are both in a right trapezoid structure to form an anti-overturning structure of the portal frame, the bottoms of the left and right upright posts are both provided with screw nut seats, and the portal frame is driven by a left and right screw rods on a lathe bed of an electric discharge machine tool through the screw nut seats.
According to the invention, the Z-axis lead screw is driven by the Z-axis servo motor through the Z-axis transmission assembly, and the X-axis lead screw is driven by the X-axis servo motor through the X-axis transmission assembly.
In the invention, the gantry frame is provided with an electric spark machine discharge unit at the beam part.
The invention has the following positive effects: the processing unit adopts a portal gantry structure, a gantry of the machine tool moves along a Y axis, and a main shaft moves along an X axis, namely the processing unit of the portal gantry structure moves along the X/Y axis and a corresponding workbench is not moved, so that the problem that the dynamic precision and rigidity of the electric spark machine tool with a column structure are influenced by the movement of the workbench to realize the movement of the X/Y axis is solved; the processing unit of the portal frame structure also solves the problems that the rigidity is deteriorated and the stroke of the main shaft is limited due to the fact that the smooth pillow of the electric spark machine tool with the ox-head structure is too long in overhanging; the left and right upright posts of the portal frame are of right-angle trapezoidal structures, so that the lateral supporting surfaces are increased, the ram, the spindle box and the portal frame hung in front are balanced in stress, the rigidity is good, and the processing precision is high.
The following examples are provided to further illustrate the present invention in conjunction with the description of the figures.
Drawings
FIG. 1 is a schematic perspective view of a gantry-type EDM machine;
FIG. 2 is a schematic perspective view of an embodiment of the present invention;
FIG. 3 is a schematic perspective view of the embodiment of FIG. 2 viewed from another direction;
FIG. 4 is a schematic left side view of the embodiment of FIG. 2;
FIG. 5 is a schematic structural view of the headstock and ram of the embodiment of FIG. 2;
fig. 6 is a schematic perspective view of the ram of the embodiment of fig. 2.
In the figure, 1, main shaft; 2. a support frame; 3. a chuck; 4. a Z-axis guide rail; 5. a ram; 6. a Z-axis lead screw; 7. a slider; 8. a Z-axis grating scale; 9. a gantry; 10. an X-axis upper guide rail; 11. an X-axis lower guide rail; 12. an upper slide block; 13. a tail wing; 14. a lower slide block; 15. an X-axis lead screw; 16. an X-axis grating scale; 17. a left and a right upright; 18. a screw nut seat; 19. a Z-axis servo motor; 20. an X-axis servo motor; 21. an electric discharge unit of the electric discharge machine; 22. and (4) a main spindle box.
Detailed Description
Referring to fig. 1 to 6, the present embodiment is a gantry machining unit of an electric discharge machine, including a C-axis mechanism, a Z-axis mechanism, and an X-axis mechanism; the C-axis mechanism is characterized in that a main shaft 1 is erected in a main shaft box 22, a chuck 3 which is driven by the main shaft to rotate around a C axis for 360 degrees is arranged on a supporting frame 2 at the bottom end of the main shaft box, and a Z-axis guide rail 4 is fixed on the back of the main shaft box; the Z-axis mechanism is characterized in that a Z-axis lead screw 6 is arranged on a ram 5, a slide block 7 for a Z-axis guide rail to slide is arranged on the front surface of the ram, the slide block is driven by the Z-axis lead screw to drive a spindle box to slide up and down along a Z axis, and a Z-axis grating ruler 8 for measuring the up-and-down stroke of a spindle along the Z axis direction is arranged on the side surface of the ram; the X-axis mechanism is characterized in that an X-axis upper guide rail 10 with an upward slide rail surface and an X-axis lower guide rail 11 with a forward slide rail surface are arranged on a portal frame 9, an upper slider 12 which is connected with the X-axis upper guide rail in an up-and-down sliding manner is arranged on the back surface of the ram, and a lower slider 14 which is connected with the X-axis lower guide rail in a sliding manner is respectively arranged on two tail wings 13 of the ram, so that a three-point positioning sliding anti-overturning structure of the ram is formed; the ram is driven by an X-axis screw rod 15 arranged on a portal frame to slide left and right along an X axis, and an X-axis grating ruler 16 for measuring the left and right strokes of the ram along the X axis direction is arranged on the portal frame; the left and right upright posts 17 of the portal frame are both in a right-angle trapezoidal structure to form an anti-overturning structure of the portal frame, and the bottoms of the left and right upright posts are both provided with a screw rod nut seat 18 to form a structure that the portal frame is driven by a left screw rod and a right screw rod on the bed body of the electric spark machine tool to slide back and forth along the Y-axis direction; the Z-axis lead screw is driven by a Z-axis servo motor 19 through a Z-axis transmission assembly, and the X-axis lead screw is driven by an X-axis servo motor 20 through an X-axis transmission assembly; the gantry frame is provided with an electric spark machine discharge unit 21 at the beam part.
The invention is assembled, the main spindle box is assembled: fixedly installing two Z-axis guide rails on the back of a main shaft box, installing a support frame at the bottom end of the main shaft box, and then installing a chuck which is driven by a main shaft to rotate around a C axis by 360 degrees; assembling a ram: installing a Z-axis screw rod, a Z-axis servo motor, a coupler, a bearing and the like on a ram, installing two Z-axis cooling fans on a motor cover, and installing the motor cover on the upper part of the ram; assembling a portal frame: the X-axis upper guide rail and the X-axis lower guide rail are arranged on two guide rail surfaces of a portal frame, and an X-axis lead screw, a coupler, a locking nut, an X-axis servo motor, a Y-axis nut seat, a locking shaft metal plate and the like are arranged on the portal frame.
When the X-axis servo motor and the X-axis lead screw are used, a main shaft arranged in the main shaft box can rotate 360 degrees around a C axis, the main shaft box driven by the Z-axis servo motor and the Z-axis lead screw slides up and down along the Z axis, and the ram slides left and right along the X axis under the drive of the X-axis servo motor and the X-axis lead screw.
Claims (4)
1. The gantry machining unit of the electric spark machine tool is characterized in that: comprises a C-axis mechanism, a Z-axis mechanism and an X-axis mechanism;
the C-axis mechanism is characterized in that a spindle (1) is erected in a spindle box (22), a support frame (2) at the bottom end of the spindle box is provided with a chuck (3) which is driven by the spindle to rotate around a C axis for 360 degrees, and a Z-axis guide rail (4) is fixed on the back of the spindle box;
the Z-axis mechanism is characterized in that a Z-axis lead screw (6) is arranged on a ram (5), a slide block (7) for a Z-axis guide rail to slide is arranged on the front surface of the ram, the Z-axis lead screw drives the spindle box to slide up and down along the Z axis, and a Z-axis grating ruler (8) for measuring the up-and-down stroke of the spindle along the Z axis direction is arranged on the side surface of the ram;
the X-axis mechanism is characterized in that an X-axis upper guide rail (10) with an upward slide rail surface and an X-axis lower guide rail (11) with a forward slide rail surface are arranged on a portal frame (9), an upper sliding block (12) which is connected with the X-axis upper guide rail in an up-and-down sliding mode is mounted on the back surface of the ram, and lower sliding blocks (14) which are connected with the side surface of the X-axis lower guide rail in a sliding mode are mounted on two tail wings (13) of the ram respectively to form a three-point positioning sliding anti-overturning structure of the ram; the ram is driven by an X-axis screw rod (15) arranged on a portal frame to slide left and right along an X axis, and an X-axis grating ruler (16) for measuring the left and right strokes of the ram along the X axis direction is arranged on the portal frame.
2. Gantry machining unit of an electric discharge machine according to claim 1, characterized in that: the left and right upright posts (17) of the portal frame are both in a right-angle trapezoidal structure to form an anti-overturning structure of the portal frame, the bottoms of the left and right upright posts are both provided with screw and nut seats (18), and the portal frame is driven by a left screw and a right screw on the bed body of the electric spark machine tool through the screw and nut seats.
3. Gantry machining unit of an electric discharge machine according to claim 1, characterized in that: the Z-axis lead screw is driven by a Z-axis servo motor (19) through a Z-axis transmission assembly, and the X-axis lead screw is driven by an X-axis servo motor (20) through an X-axis transmission assembly.
4. Gantry machining unit of an electric discharge machine according to claim 1, characterized in that: the gantry frame is provided with an electric spark machine discharge unit (21) at the beam part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211541348.2A CN115770915A (en) | 2022-12-02 | 2022-12-02 | Gantry machining unit of electric discharge machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211541348.2A CN115770915A (en) | 2022-12-02 | 2022-12-02 | Gantry machining unit of electric discharge machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115770915A true CN115770915A (en) | 2023-03-10 |
Family
ID=85391294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211541348.2A Pending CN115770915A (en) | 2022-12-02 | 2022-12-02 | Gantry machining unit of electric discharge machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115770915A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117583944A (en) * | 2024-01-17 | 2024-02-23 | 爱派尔(常州)数控科技有限公司 | Gantry machining machine tool |
-
2022
- 2022-12-02 CN CN202211541348.2A patent/CN115770915A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117583944A (en) * | 2024-01-17 | 2024-02-23 | 爱派尔(常州)数控科技有限公司 | Gantry machining machine tool |
| CN117583944B (en) * | 2024-01-17 | 2024-03-19 | 爱派尔(常州)数控科技有限公司 | Gantry machining machine tool |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111002047A (en) | Numerical control movable beam type five-axis gantry machining center machine tool | |
| CN104801987A (en) | Large pentahedral gantry machining center and method for compensating deformation of movable cross beam | |
| CN214517990U (en) | Numerical control worm grinding wheel gear grinding machine | |
| CN218613005U (en) | Section bar processing positioner and numerical control are bored and are milled lathe | |
| CN113941861A (en) | Turning and milling integrated machine tool | |
| CN115770915A (en) | Gantry machining unit of electric discharge machine tool | |
| CN102398224B (en) | Orthogonal three-axis machine tool | |
| CN115815783A (en) | Automatic move planer-type casing friction stir welding equipment that location detection clamp was got | |
| CN216503388U (en) | Turning and milling combined type machine tool | |
| CN1559754A (en) | Laser processing center for machining mould | |
| CN212217764U (en) | Numerical control movable beam type five-axis gantry machining center machine tool | |
| CN211103028U (en) | Novel movable beam type high-precision machining center | |
| CN112338291A (en) | Novel rack shaping special grinding machine | |
| CN218592000U (en) | Gantry machining unit of electric discharge machine tool | |
| CN115816105A (en) | Five-axis milling machining center | |
| CN115555872A (en) | Five-axis machining numerical control machine tool based on high-precision positioning assembly | |
| EP3834984B1 (en) | Machine structure for machine tool | |
| CN218592001U (en) | Gantry type high-precision numerical control electric spark machine tool | |
| CN218946924U (en) | Tail shield grease groove processing equipment and system thereof | |
| CN202367599U (en) | Orthorhombic triaxial machine tool | |
| CN220313479U (en) | Five aircraft nose fixed mounting structure | |
| CN214720875U (en) | Flange case support plane degree finish milling device | |
| CN211939880U (en) | Main shaft precision positioning device | |
| CN221290278U (en) | Triaxial chamfering device | |
| CN220761655U (en) | Machining center of vertical fixed beam gantry structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |