Double-spindle gantry machining center

By introducing a dual-spindle design into the gantry machining center, the two spindle machining structures work simultaneously, which solves the shortcomings of the existing gantry machining center in high-speed and high-efficiency machining, and realizes efficient light cutting machining, which is particularly suitable for the machining needs of symmetrical parts.

CN224488550UActive Publication Date: 2026-07-14NEWAY CNC EQUIPMENT (SUZHOU) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NEWAY CNC EQUIPMENT (SUZHOU) CO LTD
Filing Date
2025-07-21
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing gantry machining centers perform well in heavy cutting and high-precision machining, but they are insufficient in high-speed and high-efficiency machining, making it difficult to meet the needs of some scenarios.

Method used

A dual-spindle gantry machining center was designed, comprising two tool magazines and two spindle machining structures. Each spindle machining structure includes a crossbeam, a saddle, a ram, and a five-axis head. The crossbeam slides along the length of the bed, while the saddle and ram slide along the width and height of the bed. The five-axis head is installed at the bottom of the ram, enabling simultaneous machining by both spindles and improving efficiency.

Benefits of technology

The dual-spindle design enables high-speed and efficient light-cutting machining, making it particularly suitable for the efficient machining of symmetrical parts and improving machining efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a double spindle gantry machining center belongs to lathe field, and the double spindle gantry machining center includes the body, tool magazine and revolving stage, and the quantity of tool magazine is two, and two tool magazines are installed respectively in the both ends of body, and the double spindle gantry machining center still includes spindle machining structure, and the quantity of spindle machining structure is two, and two spindle machining structures correspond with two tool magazines respectively, and every spindle machining structure includes crossbeam, slide saddle, slide saddle and five shaft head, and crossbeam slidingly installs in the top of body, and crossbeam extends along the width direction of body, and crossbeam can slide along the length direction of body relative to body, and slide saddle slidingly installs in crossbeam, and slide saddle slides along the width direction of body relative to crossbeam, and slide saddle slidingly installs in slide saddle, and slide saddle slides along the height direction of body relative to slide saddle, and five shaft head installs in the bottom of slide saddle, and through setting two spindle machining structures, two spindle machining structures process the part simultaneously, and improve processing efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of machine tools, and in particular to a twin-spindle gantry machining center. Background Technology

[0002] A gantry machining center is a machine tool specifically designed for machining large and complex-shaped workpieces. Its main characteristic is that the spindle's Z-axis is perpendicular to the worktable, and the overall structure consists of a portal frame formed by two columns and a top beam. This design gives the gantry machining center high rigidity and stability. A crossbeam is usually also installed between the two columns, further enhancing the overall rigidity of the machine tool. This structural feature makes it particularly suitable for heavy cutting and high-precision machining tasks.

[0003] Existing gantry structures are more suited to heavy cutting, with relatively slow machining speeds and high machining accuracy requirements, which do not meet the needs of some scenarios requiring high-speed and high-efficiency machining. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, one of the objectives of this utility model is to provide a dual-spindle gantry machining center that improves machining efficiency by setting up dual spindles.

[0005] One of the objectives of this utility model is achieved through the following technical solution:

[0006] A dual-spindle gantry machining center includes a bed, tool magazines, and a rotary table. Two tool magazines are installed at opposite ends of the bed. The center also includes two spindle machining structures, each corresponding to one of the tool magazines. Each spindle machining structure includes a crossbeam, a saddle, a ram, and a five-axis head. The crossbeam is slidably mounted on the top of the bed and extends along the width of the bed. The crossbeam is capable of sliding relative to the bed along its length. The saddle is slidably mounted on the crossbeam and slides relative to the crossbeam along the width of the bed. The ram is slidably mounted on the saddle and slides relative to the saddle along the height of the bed. The five-axis head is mounted on the bottom of the ram.

[0007] Furthermore, the crossbeam includes a main body, a first slide rail, a second slide rail, a first slider, and a second slider. The first slide rail is disposed on the top of the main body, the second slide rail is disposed on the side of the main body, the first slider is slidably mounted on the first slide rail, the second slider is slidably mounted on the second slide rail, and the slide saddle is mounted on the first slider and the second slider.

[0008] Furthermore, the cross-section of the sliding saddle is L-shaped.

[0009] Furthermore, the crossbeam also includes a clamping structure, which is mounted on the first slide rail and brakes the slide saddle.

[0010] Furthermore, the crossbeam also includes a buffer structure, and there are two buffer structures, which are installed on the main body and located at both ends of the second slide rail.

[0011] Furthermore, the buffer structure is a hydraulic buffer structure.

[0012] Furthermore, the slides of the two spindle machining structures are parallel to each other.

[0013] Furthermore, the crossbeam is provided with weight-reducing holes.

[0014] Furthermore, the dual-spindle gantry machining center also includes a chip conveyor, which is mounted on the bed and located in the middle of the bed.

[0015] Furthermore, the dual-spindle gantry machining center also includes a water tank, a water chiller, and a hydraulic station, with the water tank installed at the bottom of the machine bed.

[0016] Compared to existing technologies, this utility model of a dual-spindle gantry machining center includes a bed, a tool magazine, and a rotary table. It has two tool magazines, each mounted at one end of the bed. The dual-spindle gantry machining center also includes two spindle machining structures, each corresponding to one of the two tool magazines. Each spindle machining structure includes a crossbeam, a saddle, a ram, and a five-axis head. The crossbeam is slidably mounted on the top of the bed, extending along the width of the bed and capable of sliding relative to the bed along its length. The saddle is slidably mounted on the crossbeam, sliding relative to the crossbeam along the width of the bed. The ram is slidably mounted on the saddle, sliding relative to the saddle along the height of the bed. The five-axis head is mounted at the bottom of the ram. By setting up two spindle machining structures, both can simultaneously process parts, improving machining efficiency. Attached Figure Description

[0017] Figure 1 This is a perspective view of the dual-spindle gantry machining center of this utility model;

[0018] Figure 2 for Figure 1 A 3D view of the crossbeam of a twin-spindle gantry machining center;

[0019] Figure 3 for Figure 1 Front view of a twin-spindle gantry machining center.

[0020] In the diagram: 10. Bed; 20. Chip conveyor; 30. Tool magazine; 40. Rotary table; 50. Water tank; 60. Water chiller; 70. Hydraulic station; 80. Spindle machining structure; 81. Crossbeam; 810. Main body; 811. First slide rail; 812. First slider; 813. Clamping structure; 814. Second slide rail; 815. Second slider; 816. Buffer structure; 82. Saddle; 83. Ram; 84. Five-axis head. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or it can be fixed through another intermediate component. When a component is said to be "connected to" another component, it can be directly connected to the other component or it may be fixed through another intermediate component. When a component is said to be "set on" another component, it can be set directly on the other component or it may be set through another intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] Please see Figures 1 to 3 This utility model of a dual-spindle gantry machining center is used for high-speed, light-cut machining that requires high efficiency, especially for machining symmetrical parts.

[0025] The dual-spindle gantry machining center includes a bed 10, a chip conveyor 20, a tool magazine 30, a rotary table 40, a water tank 50, a water chiller 60, a hydraulic station 70, and a spindle machining structure 80.

[0026] The bed 10 is used to install the chip conveyor 20, tool magazine 30, rotary table 40, water tank 50, and spindle machining structure 80.

[0027] The chip conveyor 20 is installed in the middle of the bed 10, corresponding to the part to be processed, to receive the waste chips generated during the machining of the five-axis head 84.

[0028] There are two tool magazines 30, which are installed at both ends of the bed 10 and correspond to the two spindle machining structures 80 respectively.

[0029] The rotary table 40 is used to clamp the workpiece to be processed.

[0030] The water tank 50 is installed at the bottom of the bed 10 to collect and filter the coolant, allowing the coolant to be recycled.

[0031] The water chiller 60 is installed on one side of the bed 10. The water chiller 60 is connected to the inside of the spindle to cool the spindle.

[0032] The hydraulic station 70 is installed at the bottom of the water chiller 60, and the hydraulic station 70 operates the machining center through hydraulic control.

[0033] There are two spindle machining structures 80, which can process the workpiece simultaneously, improving machining efficiency. Both spindle machining structures 80 are slidably mounted on the top of the bed 10 and are parallel to each other. Specifically, each spindle machining structure 80 includes a crossbeam 81, a slide saddle 82, a slide ram 83, and a five-axis head 84.

[0034] The crossbeam 81 is slidably mounted on the top of the bed 10, and is arranged along the width direction of the bed 10 and can slide along the length direction of the bed 10. Specifically, the crossbeam 81 includes a main body 810, a first slide rail 811, a first slider 812, a clamping structure 813, a second slide rail 814, a second slider 815, and a buffer structure 816. The main body 810 is provided with weight-reducing holes to reduce the weight of the crossbeam 81. The first slide rail 811 is located on the top of the main body 810 and can bear the weight of the saddle 82. The first slider 812 is slidably mounted on the first slide rail 811. The clamping structure 813 is mounted on the first slide rail 811 and is used for braking the saddle 82. The second slide rail 814 is located on the side of the main body 810 and is perpendicular to the first slide rail 811. The second slider 815 is slidably mounted on the second slide rail 814. There are two buffer structures 816, which are installed at both ends of the second slide rail 814. The buffer structures 816 are used to reduce shock when the slide saddle 82 slides to the end of the second slide rail 814. In this embodiment, the buffer structure 816 is an elastic element.

[0035] The slide saddle 82 has an L-shaped cross-section and is connected to the first slider 812 and the second slider 815, allowing the slide saddle 82 to slide on the crossbeam 81. The slide saddle 82 can move relative to the crossbeam 81 in the width direction of the bed 10. The ram 83 is slidably mounted on the slide saddle 82 and can move relative to the slide saddle 82 in the height direction of the bed 10. The five-axis head 84 is mounted on the bottom of the ram 83 and performs machining on the workpiece.

[0036] This utility model of a dual-spindle gantry machining center improves machining efficiency by setting up two spindle machining structures 80, which can simultaneously process parts.

[0037] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model. These are all equivalent modifications and improvements made to the above embodiments based on the essential technology of this utility model, and all of these fall within the protection scope of this utility model.

Claims

1. A twin-spindle gantry machining center, comprising a bed, a tool magazine, and a rotary table, characterized in that: The tool magazine is provided in two parts, which are respectively installed at both ends of the machine bed. The dual-spindle gantry machining center also includes two spindle machining structures, which correspond to the two tool magazines respectively. Each spindle machining structure includes a crossbeam, a saddle, a ram, and a five-axis head. The crossbeam is slidably installed on the top of the machine bed and extends along the width direction of the machine bed. The crossbeam can slide relative to the machine bed along the length direction of the machine bed. The saddle is slidably installed on the crossbeam and slides relative to the crossbeam along the width direction of the machine bed. The ram is slidably installed on the saddle and slides relative to the saddle along the height direction of the machine bed. The five-axis head is installed at the bottom of the ram.

2. The dual-spindle gantry machining center according to claim 1, characterized in that: The crossbeam includes a main body, a first slide rail, a second slide rail, a first slider, and a second slider. The first slide rail is disposed on the top of the main body, the second slide rail is disposed on the side of the main body, the first slider is slidably mounted on the first slide rail, the second slider is slidably mounted on the second slide rail, and the saddle is mounted on the first slider and the second slider.

3. The dual-spindle gantry machining center according to claim 2, characterized in that: The cross-section of the sliding saddle is L-shaped.

4. The dual-spindle gantry machining center according to claim 2, characterized in that: The crossbeam also includes a clamping structure, which is mounted on the first slide rail and brakes the slide saddle.

5. The dual-spindle gantry machining center according to claim 2, characterized in that: The crossbeam also includes a buffer structure, and there are two buffer structures. The two buffer structures are installed on the main body and located at both ends of the second slide rail.

6. The dual-spindle gantry machining center according to claim 5, characterized in that: The buffer structure is a hydraulic buffer structure.

7. The dual-spindle gantry machining center according to claim 1, characterized in that: The slides of the two spindle machining structures are parallel to each other.

8. The dual-spindle gantry machining center according to claim 1, characterized in that: The crossbeam is equipped with weight-reducing holes.

9. The dual-spindle gantry machining center according to claim 1, characterized in that: The twin-spindle gantry machining center also includes a chip conveyor, which is mounted on the bed and located in the middle of the bed.

10. The dual-spindle gantry machining center according to claim 1, characterized in that: The dual-spindle gantry machining center also includes a water tank, a water chiller, and a hydraulic station, with the water tank installed at the bottom of the machine bed.