Double-spindle vertical machining center
By integrating milling and grinding functions with an automatic chip scraper through the design of a dual-spindle vertical machining center, the problems of error accumulation and chip cleaning in multi-process machining are solved, and a highly efficient and safe machining process is achieved.
Patent Information
- Application Number
- CN202423017661.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-06
AI Technical Summary
Existing machining centers suffer from low machining accuracy due to repeated clamping during multi-process machining, resulting in accumulated errors, difficult waste removal, and safety hazards.
Design a dual-spindle vertical machining center that integrates milling and grinding spindles and tool magazines, and is equipped with an automatic chip scraper and a tilting table to achieve automatic chip removal.
It improves processing accuracy and efficiency, reduces clamping errors, avoids waste splashing and safety hazards, and simplifies the cleaning process.
Smart Images
Figure CN223492783U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of machine tool processing technology, specifically to a dual-spindle vertical machining center. Background Technology
[0002] A machining center is a CNC machine tool equipped with a tool magazine and automatic tool changer, capable of performing multiple machining operations on a single workpiece clamping. A typical machining center has only one worktable and one spindle. When multiple machining operations are involved, re-clamping is required, resulting in discontinuity between adjacent operations. Excessive re-clamping can lead to error accumulation, causing dimensional and positional tolerances that affect machining accuracy. This is neither efficient nor can it guarantee high-quality machining. During machining, the workpiece generates a significant amount of debris that falls onto the worktable. Since the worktable surface has several T-slots, the debris falls into these slots and is difficult to clean. Operators usually need to use an air gun to clean the worktable; however, the high pressure of the air gun can cause debris to splatter, posing a safety hazard. Summary of the Invention
[0003] The technical problem to be solved by this utility model is to provide a dual-spindle vertical machining center that addresses the shortcomings of the prior art, enabling integrated milling and grinding and automatic chip removal.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a dual-spindle vertical machining center, comprising a base and a column erected behind the base. A left spindle box assembly and a right spindle box assembly are slidably disposed on the front of the column, arranged parallel to each other. A milling spindle is disposed within the left spindle box assembly, and a grinding spindle is disposed within the right spindle box assembly. A left tool magazine assembly and a right tool magazine assembly are disposed on both sides of the column. A sliding seat is slidably disposed on the base, and a worktable is slidably disposed on the sliding seat. A rotary table is disposed on the worktable. The left and right spindle box assemblies are suspended above the rotary table. The worktable includes a table surface and a base, the table surface and the base being hinged together. The base and the sliding seat are slidably connected. A flipping assembly for driving the table surface to rotate is disposed within the sliding seat, and an automatic chip scraping assembly is disposed on the table surface.
[0005] The present invention, possessing the above-mentioned features, achieves a structure integrating dual spindles and dual tool magazines by setting independent milling spindles and grinding spindles, each equipped with a tool magazine. When milling and grinding workpieces, there is no need to re-clamp due to changing processing equipment, reducing errors caused by multiple clamping, improving workpiece processing accuracy and work efficiency, and reducing the floor space. The flip-up worktable surface, combined with the automatic chip scraping component, realizes the function of automatic chip cleaning in the machining center, eliminating the need for the operator to use an air gun to clean the chips in the worktable.
[0006] A further feature of this invention is that the automatic chip scraping assembly includes a slide rod, a lead screw, a drive motor, and a chip scraper. A rectangular groove for mounting the lead screw and slide rod is provided on one side of the horizontal surface of the table. One end of the lead screw is fixed in the rectangular groove, and the other end passes through the groove wall and connects to the drive motor. Both ends of the slide rod are fixed in the rectangular groove. The drive motor is fixedly mounted on the table. The chip scraper is slidably mounted on the table and includes a horizontally arranged scraper section and two vertically arranged connecting sections. The connecting sections are located at both ends of the scraper section. One connecting section passes through the lead screw and is threadedly connected to it, while the other connecting section passes through the slide rod. The side of the scraper section facing the table is in contact with the table and has several chip scrapers adapted to the T-slots on the table.
[0007] This utility model, possessing the above-mentioned features, achieves automated chip removal by installing a drive motor on the worktable to rotate the lead screw. The connecting part, threaded to the lead screw, moves axially along the lead screw as it rotates. Driven by the connecting part, the scraper moves along the worktable to clean the upper surface, thus automating chip removal. Because the scraper is equipped with a chip removal blade adapted to the T-slot, it ensures the blade can penetrate deep into the T-slot, effectively removing debris and preventing residue and accumulation. Unlike air gun cleaning methods, the automatic chip removal assembly avoids the problem of debris splashing caused by high-pressure air guns, reducing safety hazards during operation.
[0008] A further feature of this invention is that the scraper section has several serrations on the side facing the table surface, and both the serrations and the scraper blade are made of rubber.
[0009] The present invention, which has the above-mentioned features, has the following characteristics: by setting several serrations on the scraper part, it has the effect of a brush and can scrape away iron filings; both the serrations and the scraper blade are made of rubber, which can effectively prevent the scraper from scratching the worktable when it comes into contact with the worktable.
[0010] A further feature of this invention is that the sliding seat is horizontally positioned above the base, the worktable is parallel to the sliding seat, the horizontal end of the worktable is hinged to the horizontal end of the base, and the flipping assembly is positioned on the sliding seat near the horizontal end of the worktable. The flipping assembly includes a flipping seat, a pneumatic rod, and a connecting seat. The flipping seat is fixedly installed inside the sliding seat, and the connecting seat is fixedly installed on the side of the worktable. The two ends of the pneumatic rod are respectively hinged to the flipping seat and the connecting seat.
[0011] The present invention, which has the above-mentioned features, sets the workbench as a tabletop that can be flipped and a base that cannot be flipped, so that when the tabletop is cleaned and maintained, the tabletop can be tilted by the flipping component, causing the waste in the tabletop and T-slot to slide down under the action of gravity. When used with the automatic scraper component, it can improve the cleaning power and cleaning efficiency.
[0012] A further feature of this invention is that: the lower end face of the platform is provided with a first magnet, the upper end face of the base is provided with an adsorption groove for accommodating the first magnet, and a second magnet that attracts the first magnet is embedded in the adsorption groove.
[0013] The present invention, which has the above-mentioned features, provides magnets that can attract each other on the table and the base, so that when the table is not flipped, it remains overlapping with the base under the attraction of the magnets, thus preventing the worktable from moving during sliding and processing.
[0014] A further feature of this invention is that: a set of longitudinal guide rails is provided on the base, the bottom of the sliding seat is connected to the longitudinal guide rails, a longitudinal drive source is provided inside the base to drive the sliding seat to make longitudinal reciprocating displacement on the longitudinal guide rails, a set of transverse guide rails is provided on the sliding seat, the bottom of the worktable is connected to the transverse guide rails, and a transverse drive source is provided inside the sliding seat to drive the worktable to make transverse reciprocating displacement on the transverse guide rails.
[0015] The present invention, which has the above features, achieves high-precision positioning of the workpiece in a two-dimensional plane by precisely guiding the longitudinal and transverse guide rails and cooperating with the precise control of the longitudinal drive source and the transverse drive source; by overlapping the longitudinal and transverse guide rails, the entire system has a compact structure and occupies a small area.
[0016] A further feature of this invention is that the rotation angle of the rotating platform is 360°.
[0017] The present invention, which has the above-mentioned features, uses a rotary table with a rotation angle of 360°, which can drive the workpiece placed on it to rotate 360°, thereby adjusting the position of the workpiece.
[0018] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description
[0019] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.
[0020] Figure 2 This is a schematic diagram of the structure of the base, sliding seat and worktable in an embodiment of this utility model.
[0021] Figure 3 This is a schematic diagram of the structure of the sliding seat and the worktable in an embodiment of this utility model.
[0022] Figure 4 This is a schematic diagram of the worktable flipping in an embodiment of the present invention.
[0023] Figure 5 This is a schematic diagram of the structure of the scraper component in an embodiment of this utility model. Detailed Implementation
[0024] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.
[0025] like Figure 1-5 The dual-spindle vertical machining center shown includes a base 1 and a column 2 erected behind the base 1. A left spindle box assembly 3 and a right spindle box assembly 4 are slidably mounted on the front of the column 2, arranged parallel to each other. A milling spindle 31 is housed in the left spindle box assembly 3, and a grinding spindle 41 is housed in the right spindle box assembly 4. A left tool magazine assembly 5 and a right tool magazine assembly 6 are mounted on both sides of the column 2. A sliding seat 7 is slidably mounted on the base 1, and a worktable 8 is slidably mounted on the sliding seat 7. A rotary table 9 is mounted on the worktable 8. The rotation angle is 360°. The left spindle box assembly 3 and the right spindle box assembly 4 are suspended above the rotary table 9. The worktable 8 includes a table surface 81 and a base 82. The table surface 81 and the base 82 are hinged. The lower end surface of the table surface 81 is provided with a first magnet 11. The upper end surface of the base 82 is provided with an adsorption groove 821 to accommodate the first magnet 11. A second magnet 12 that attracts the first magnet 11 is embedded in the adsorption groove 821. The base 82 is slidably connected to the sliding seat 7. The sliding seat 7 is provided with a flipping assembly 30 that drives the table surface 81 to flip. An automatic scraping assembly 20 is provided on the table surface 81.
[0026] The automatic chip scraper assembly 20 includes a slide rod (not shown), a lead screw 21, a drive motor 22, and a chip scraper 23. A rectangular groove 811 for mounting the lead screw 21 and the slide rod is provided on one side of the table 81. One end of the lead screw 21 is fixed inside the rectangular groove 811, and the other end passes through the groove wall of the rectangular groove 811 and connects to the drive motor 22. Both ends of the slide rod are fixed inside the rectangular groove 811. The drive motor 22 is fixedly mounted on the table 81. The chip scraper 23 is slidably disposed on the table 81 and includes a horizontally arranged scraper section. 231. Two vertically arranged connecting parts 232 are located at both ends of the scraper part 231. One connecting part 232 passes through the lead screw 21 and is threaded to it. The other connecting part 232 passes through the slide rod. The side of the scraper part 231 facing the table surface 81 is in contact with the table surface 81. Several scraper blades 233 adapted to the T-slots 812 on the table surface 81 are provided on it. Several serrations 234 are provided on the side of the scraper part 231 facing the table surface 81. The serrations 234 and the scraper blades 233 are all made of rubber.
[0027] The sliding seat 7 is horizontally positioned above the base 1. The worktable 8 is parallel to the sliding seat 7. The horizontal end of the worktable 81 is hinged to the horizontal end of the base 82. The flipping assembly 30 is located on the sliding seat 7 near the horizontal end of the worktable 81. The flipping assembly 30 includes a flipping seat 31, a pneumatic rod 32, and a connecting seat 33. The flipping seat 31 is fixedly installed inside the sliding seat 7, and the connecting seat 33 is fixedly installed on the side of the worktable 81. The two ends of the pneumatic rod 32 are hinged to the flipping seat 31 and the connecting seat 33, respectively.
[0028] The base 1 is provided with a set of longitudinal guide rails 13, the bottom of the sliding seat 7 is connected to the longitudinal guide rails 13, the base 1 is provided with a longitudinal drive source 14 that drives the sliding seat 7 to make longitudinal reciprocating displacement on the longitudinal guide rails 13, the sliding seat 7 is provided with a set of transverse guide rails 15, the bottom of the worktable 8 is connected to the transverse guide rails 15, the sliding seat 7 is provided with a transverse drive source 16 that drives the worktable 8 to make transverse reciprocating displacement on the transverse guide rails 15.
[0029] In actual production, the left milling spindle of this dual-spindle vertical machining center can perform milling (finishing) on the workpiece, while the right grinding spindle can perform grinding (ultra-finishing) on the workpiece. The workpiece is placed on a rotary table, and the position of the workpiece on the X and Y axes can be adjusted by the cooperation of the longitudinal drive source and the transverse drive source. The accuracy of the rotary table is one-thousandth of a degree. By rotating the rotary table, the workpiece can be fine-tuned and rotated along the Z axis.
[0030] After processing, the rotary table can be removed, and the pneumatic rod drives the table surface to rotate. After the table surface rotates to a certain tilt, it stops rotating. The drive motor drives the lead screw to rotate, and the scraper connected to the lead screw threadedly moves axially along the lead screw, moving from the raised end of the table surface to the hinged end of the table surface and the base, scraping off the waste chips and realizing the automation of waste chip cleaning.
Claims
1. A dual-spindle vertical machining center, comprising a base and a column erected behind the base, characterized in that: The front of the column is slidably equipped with a left spindle box assembly and a right spindle box assembly, which are arranged parallel to each other. The left spindle box assembly contains a milling spindle, and the right spindle box assembly contains a grinding spindle. The two sides of the column are equipped with a left tool magazine assembly and a right tool magazine assembly. A sliding seat is slidably mounted on the base, and a worktable is slidably mounted on the sliding seat. A rotary table is mounted on the worktable, and the left and right spindle box assemblies are suspended above the rotary table. The worktable includes a table surface and a base, which are hinged together. The base is slidably connected to the sliding seat. The sliding seat contains a flipping assembly that drives the table surface to rotate, and an automatic chip scraper is mounted on the table surface.
2. The dual-spindle vertical machining center according to claim 1, characterized in that: The automatic chip scraping assembly includes a slide rod, a lead screw, a drive motor, and a chip scraper. A rectangular groove for mounting the lead screw and slide rod is provided on one side of the horizontal surface of the table. One end of the lead screw is fixed in the rectangular groove, and the other end passes through the groove wall and connects to the drive motor. Both ends of the slide rod are fixed in the rectangular groove. The drive motor is fixedly mounted on the table. The chip scraper is slidably disposed on the table and includes a horizontally arranged scraper section and two vertically arranged connecting sections. The connecting sections are located at both ends of the scraper section. One connecting section passes through the lead screw and is threaded to it, and the other connecting section passes through the slide rod. The side of the scraper section facing the table is in contact with the table surface and has several chip scrapers adapted to the T-slots on the table surface.
3. A dual-spindle vertical machining center according to claim 2, characterized in that: The scraper section has several serrations on the side facing the table surface, and both the serrations and the scraper blade are made of rubber.
4. A dual-spindle vertical machining center according to claim 1 or 2, characterized in that: The sliding seat is horizontally positioned above the base. The worktable is parallel to the sliding seat. The horizontal end of the worktable is hinged to the horizontal end of the base. The flipping assembly is located on the sliding seat near the horizontal end of the worktable. The flipping assembly includes a flipping seat, a pneumatic rod, and a connecting seat. The flipping seat is fixedly installed inside the sliding seat, and the connecting seat is fixedly installed on the side of the worktable. The two ends of the pneumatic rod are respectively hinged to the flipping seat and the connecting seat.
5. A dual-spindle vertical machining center according to claim 4, characterized in that: The lower end face of the platform is provided with a first magnet, and the upper end face of the platform is provided with an adsorption groove for accommodating the first magnet. A second magnet that is attracted to the first magnet is embedded in the adsorption groove.
6. A dual-spindle vertical machining center according to claim 1, characterized in that: The base is provided with a set of longitudinal guide rails, the bottom of the sliding seat is connected to the longitudinal guide rails, the base is provided with a longitudinal drive source that drives the sliding seat to make longitudinal reciprocating displacement on the longitudinal guide rails, the sliding seat is provided with a set of transverse guide rails, the bottom of the worktable is connected to the transverse guide rails, and the sliding seat is provided with a transverse drive source that drives the worktable to make transverse reciprocating displacement on the transverse guide rails.
7. A dual-spindle vertical machining center according to claim 1, characterized in that: The rotation angle of the rotating platform is 360°.