Double-workbench gantry machining center
By designing a double worktable and sliding/fixed components in the gantry machining center, and utilizing the adjustment of the sliding worktable and machining head driven by a motor, continuous machining of workpieces can be achieved, solving the downtime problem caused by workpiece replacement in the existing technology and improving machining efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAMEN MILANG PRECISION MASCH CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-05-15
AI Technical Summary
Existing gantry machining centers require downtime when changing workpieces, resulting in low processing efficiency.
Design a dual-table gantry machining center, employing sliding and fixed components. A third motor drives the sliding table to slide longitudinally, while the first and second motors drive the machining head for lateral and vertical adjustment, enabling continuous machining of the workpiece.
When one workpiece is finished, another workpiece can be started immediately, reducing installation and disassembly time, improving production efficiency, and ensuring continuous operation of the processing machine.
Smart Images

Figure CN224238805U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of machining center technology, specifically a dual-table gantry machining center. Background Technology
[0002] A gantry machining center is a machining center in which the axis of the spindle Z-axis is set perpendicular to the worktable. The overall structure is a large machining center with a portal frame consisting of two columns and a top beam, and there is also a crossbeam in the middle of the two columns.
[0003] Currently, the gantry machining centers used in this field operate by placing workpieces on the machining table for processing. After processing is completed, the workpiece is removed from the machining table, and another workpiece is placed on the machining table for subsequent processing. This process requires machine downtime, resulting in slow processing efficiency. Therefore, a dual-worktable gantry machining center is needed to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to provide a double-table gantry machining center to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a double-table gantry machining center, including a machining table, a support frame fixedly installed on the top of the machining table near the back side, a top beam fixedly installed on the top of the support frame, a moving machining mechanism extending from the inside to the outside of the top beam, and a workpiece fixing mechanism provided on the top of the machining table.
[0006] The workpiece fixing mechanism includes a sliding component and a fixing component. The sliding component is disposed on the top of the processing table, and the fixing component is disposed on the top of the sliding component.
[0007] The sliding assembly includes a third motor, which is fixedly mounted on the top of the processing table. A third lead screw is fixedly mounted on the output end of the third motor. A bearing seat is fixedly mounted on the top of the processing table. A guide rail is fixedly mounted on the top of the processing table. A sliding worktable is slidably mounted on the outside of the guide rail to facilitate longitudinal sliding adjustment of the part's position.
[0008] Preferably, the sliding worktable is threaded onto the outside of the third lead screw, and the end of the third lead screw away from the third motor is rotatably mounted inside the bearing seat, so that the third lead screw can drive the sliding worktable to slide longitudinally.
[0009] Preferably, two sets of sliding components are provided and are symmetrically installed with respect to the center line of the front of the worktable, which facilitates continuous processing of parts.
[0010] Preferably, the fixing assembly includes a mounting bracket, which is fixedly mounted on the top of the sliding worktable. A cylinder is fixedly mounted on the outer side of the mounting bracket. A push rod is provided extending from the inside of the cylinder to the outside. A sliding clamp is fixedly mounted on the end of the push rod away from the cylinder. A fixing clamp is fixedly mounted on the top of the sliding worktable. A limit rod is fixedly mounted on the back of the sliding clamp. Limit seats are fixedly mounted on both ends of the cylinder to facilitate fixing the parts.
[0011] Preferably, a through hole is provided at the corresponding position of the limiting seat and the limiting rod, and the limiting rod is slidably installed inside the through hole to facilitate the sliding clamp to perform limiting sliding.
[0012] Preferably, the top of the sliding worktable is provided with two cylinders, a sliding clamp and a fixing clamp, which are symmetrically distributed around the center line of the front of the sliding worktable, so as to facilitate fixing two parts on one sliding worktable.
[0013] Preferably, the moving processing mechanism includes a first motor, which is fixedly installed on the left side of the top beam frame. A first lead screw is fixedly installed at the output end of the first motor. A sliding seat is slidably installed inside the top beam frame extending to the front. A second motor is fixedly installed on the top of the sliding seat. A second lead screw is fixedly installed at the output end of the second motor. A sliding table is slidably installed inside the sliding seat extending to the front. A processing cutter head is provided on the outside of the sliding table to facilitate the horizontal and vertical sliding adjustment of the position of the processing cutter head.
[0014] Preferably, the sliding seat is threaded on the outside of the first lead screw, and the sliding table is threaded on the outside of the second lead screw, so that the second lead screw can drive the sliding table to slide.
[0015] Compared with the prior art, this utility model provides a double-table gantry machining center, which has the following beneficial effects:
[0016] 1. This dual-worktable gantry machining center, through its workpiece fixing mechanism, allows for simultaneous machining of one part on one sliding worktable while another part is loaded onto the other. The time it takes to remove one part after machining is sufficient for the other part to begin machining immediately, saving time and reducing the time spent installing and removing parts. The machining center can operate continuously without stopping, improving production efficiency.
[0017] 2. This dual-table gantry machining center, through its movable machining mechanism, uses a first motor and a second motor to drive the machining head to adjust its horizontal and vertical positions during use, and a third motor at the bottom to drive the sliding worktable to adjust its vertical movement, so that the machining head can process the parts. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the front structure of this utility model;
[0021] Figure 3 This is a side view of the structure of this utility model;
[0022] Figure 4 This is a schematic diagram of the appearance and structure of the processing table and connected mechanism of this utility model;
[0023] Figure 5 This is a schematic diagram of the external structure of the sliding worktable and its connected mechanism of this utility model.
[0024] Figure 6 This is a schematic diagram of the open state of the sliding clamp of this utility model.
[0025] In the diagram: 1. Machining table; 2. Support frame; 3. Top beam frame; 4. Moving machining mechanism; 41. First motor; 42. First lead screw; 43. Sliding seat; 44. Second motor; 45. Second lead screw; 46. Sliding table; 47. Machining cutter head; 5. Workpiece fixing mechanism; 51. Sliding assembly; 511. Third motor; 512. Third lead screw; 513. Bearing seat; 514. Guide rail; 515. Sliding worktable; 52. Fixing assembly; 521. Mounting frame; 522. Cylinder; 523. Push rod; 524. Limit rod; 525. Limit seat; 526. Sliding fixture; 527. Fixed fixture. Detailed Implementation
[0026] 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.
[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0028] Example 1:
[0029] To enable continuous machining of parts by the machining center, please refer to [link / reference]. Figure 1-6 This utility model provides a technical solution: a double-worktable gantry machining center, including a machining table 1, a support frame 2 fixedly installed on the top of the machining table 1 near the back side, a top beam frame 3 fixedly installed on the top of the support frame 2, a moving machining mechanism 4 extending from the inside to the outside of the top beam frame 3, and a workpiece fixing mechanism 5 provided on the top of the machining table 1.
[0030] The workpiece fixing mechanism 5 includes a sliding component 51 and a fixing component 52. The sliding component 51 is disposed on the top of the processing table 1, and the fixing component 52 is disposed on the top of the sliding component 51.
[0031] The sliding assembly 51 includes a third motor 511, which is fixedly mounted on the top of the processing table 1. A third lead screw 512 is fixedly mounted on the output end of the third motor 511. A bearing seat 513 is fixedly mounted on the top of the processing table 1. A guide rail 514 is fixedly mounted on the top of the processing table 1. A sliding worktable 515 is slidably mounted on the outside of the guide rail 514 to facilitate longitudinal sliding adjustment of the part's position.
[0032] Furthermore, the sliding worktable 515 is threaded onto the outside of the third lead screw 512, and the end of the third lead screw 512 away from the third motor 511 is rotatably mounted inside the bearing seat 513, so that the third lead screw 512 can drive the sliding worktable 515 to slide longitudinally.
[0033] Furthermore, two sets of sliding components 51 are provided and are symmetrically installed with respect to the center line of the front of the worktable, which facilitates continuous processing of parts.
[0034] Furthermore, the fixing component 52 includes a mounting bracket 521, which is fixedly mounted on the top of the sliding worktable 515. A cylinder 522 is fixedly mounted on the outer side of the mounting bracket 521. A push rod 523 is provided inside the cylinder 522 and extends to the outside. A sliding clamp 526 is fixedly mounted on the end of the push rod 523 away from the cylinder 522. A fixing clamp 527 is fixedly mounted on the top of the sliding worktable 515. A limit rod 524 is fixedly mounted on the back of the sliding clamp 526. Limit seats 525 are fixedly mounted on both ends of the cylinder 522 to facilitate the fixing of parts.
[0035] Furthermore, through holes are provided at corresponding positions of the limiting seat 525 and the limiting rod 524, and the limiting rod 524 is slidably installed inside the through hole to facilitate the sliding clamp 526 to perform limiting sliding.
[0036] Furthermore, the top of the sliding worktable 515 is provided with two cylinders 522, a sliding clamp 526 and a fixing clamp 527, which are symmetrically distributed around the center line of the front of the sliding worktable 515, making it easy to fix two parts on one sliding worktable 515.
[0037] Example 2:
[0038] To enable the machining head 47 to move and adjust its position, this utility model provides another embodiment. Please refer to [link / reference needed]. Figure 2 and Figure 3 Furthermore, in conjunction with Embodiment 1, the moving processing mechanism 4 includes a first motor 41, which is fixedly installed on the left side of the top beam frame 3. A first lead screw 42 is fixedly installed at the output end of the first motor 41. A sliding seat 43 is slidably installed inside the top beam frame 3 extending to the front. A second motor 44 is fixedly installed on the top of the sliding seat 43. A second lead screw 45 is fixedly installed at the output end of the second motor 44. A sliding table 46 is slidably installed inside the sliding seat 43 extending to the front. A processing cutter head 47 is provided on the outside of the sliding table 46, which facilitates the horizontal and vertical sliding adjustment of the position of the processing cutter head 47.
[0039] Furthermore, the sliding seat 43 is threaded onto the outside of the first lead screw 42, and the sliding table 46 is threaded onto the outside of the second lead screw 45, so that the second lead screw 45 can drive the sliding table 46 to slide.
[0040] In actual operation, when this device is used, the workpiece is placed between the fixed fixture 527 and the sliding fixture 526. The cylinder 522 drives the push rod 523 to slide, so that the push rod 523 drives the sliding fixture 526 to clamp and fix the workpiece. The first motor 41 drives the first lead screw 42 to rotate, so that the first lead screw 42 drives the sliding seat 43 to slide laterally. The second motor 44 drives the second lead screw 45 to rotate, so that the second lead screw 45 drives the sliding table 46 to slide up and down, so that the processing head 47 can move laterally and vertically to adjust the processing position. At the same time, the third motor 511 drives the third lead screw 512 to rotate, so that the third lead screw 512 drives the sliding worktable 515 to slide longitudinally on the guide rail 514, so that the sliding worktable 515 drives the workpiece to move longitudinally to adjust the position.
[0041] While one of the sliding worktables 515 is processing, another part is placed on another sliding worktable 515. The cylinder 522 drives the push rod 523, so that the sliding fixture 526 cooperates with the fixed fixture 527 to clamp and fix the part. When the part being processed is completed, the other sliding worktable 515 continues to process and replaces the completed part, thus realizing continuous processing of parts.
[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
Claims
1. A dual-table gantry machining center, comprising a machining table (1), characterized in that: A support frame (2) is fixedly installed on the top of the processing table (1) near the back side. A top beam frame (3) is fixedly installed on the top of the support frame (2). A moving processing mechanism (4) is provided inside the top beam frame (3) and a workpiece fixing mechanism (5) is provided on the top of the processing table (1). The workpiece fixing mechanism (5) includes a sliding component (51) and a fixing component (52). The sliding component (51) is disposed on the top of the processing table (1), and the fixing component (52) is disposed on the top of the sliding component (51). The sliding assembly (51) includes a third motor (511), which is fixedly installed on the top of the processing table (1). A third lead screw (512) is fixedly installed at the output end of the third motor (511). A bearing seat (513) is fixedly installed on the top of the processing table (1). A guide rail (514) is fixedly installed on the top of the processing table (1). A sliding worktable (515) is slidably installed on the outside of the guide rail (514).
2. The dual-table gantry machining center according to claim 1, characterized in that: The sliding worktable (515) is threaded onto the outside of the third lead screw (512), and the end of the third lead screw (512) away from the third motor (511) is rotatably mounted inside the bearing seat (513).
3. The dual-table gantry machining center according to claim 1, characterized in that: Two sets of sliding components (51) are provided and are installed symmetrically about the center line of the front of the worktable.
4. A dual-table gantry machining center according to claim 1, characterized in that: The fixing component (52) includes a mounting bracket (521), which is fixedly mounted on the top of the sliding worktable (515). A cylinder (522) is fixedly mounted on the outside of the mounting bracket (521). A push rod (523) is provided inside the cylinder (522) and extends to the outside. A sliding clamp (526) is fixedly mounted on the end of the push rod (523) away from the cylinder (522). A fixing clamp (527) is fixedly mounted on the top of the sliding worktable (515). A limit rod (524) is fixedly mounted on the back of the sliding clamp (526). Limit seats (525) are fixedly mounted on both ends of the cylinder (522).
5. A double-table gantry machining center according to claim 4, characterized in that: The limiting seat (525) and the limiting rod (524) are provided with through holes at corresponding positions, and the limiting rod (524) is slidably installed inside the through holes.
6. A double-table gantry machining center according to claim 4, characterized in that: The top of the sliding worktable (515) is provided with two cylinders (522), a sliding clamp (526) and a fixed clamp (527), which are symmetrically distributed around the center line of the front of the sliding worktable (515).
7. A double-table gantry machining center according to claim 1, characterized in that: The moving processing mechanism (4) includes a first motor (41), which is fixedly installed on the left side of the top beam frame (3). A first lead screw (42) is fixedly installed at the output end of the first motor (41). A sliding seat (43) is slidably installed inside the top beam frame (3) extending to the front. A second motor (44) is fixedly installed on the top of the sliding seat (43). A second lead screw (45) is fixedly installed at the output end of the second motor (44). A sliding table (46) is slidably installed inside the sliding seat (43) extending to the front. A processing head (47) is provided on the outside of the sliding table (46).
8. A double-table gantry machining center according to claim 7, characterized in that: The sliding seat (43) is threaded onto the outside of the first lead screw (42), and the sliding table (46) is threaded onto the outside of the second lead screw (45).