Four-axis high-precision numerical control machining tool
By adopting a structure including machine, gantry, tool movement group and fixture assembly in a four-axis machining machine tool, the vibration problem caused by single-arm clamping is solved, and more stable component clamping and higher machining accuracy is achieved. .
Patent Information
- Application Number
- CN202421185896.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-28
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-05-28
AI Technical Summary
During processing, the existing four-axis machining machine tools are prone to vibration due to single-arm clamping technology, resulting in errors in machining accuracy.
A four-axis high-precision CNC machining machine tool is designed, adopting a structure including a machine, a gantry, a tool movement group and a fixture assembly. The fixture assembly includes a third motor motion sub-group, a third stator rail, a workbench and a clamping member. The assembly, through the third motor rotating subset and the third stator rail, the clamp assembly realizes rotation of the clamping member through the first servo motor, fixture, rotating shaft and fixture, and combines with the limit protection block of the tool activity group to improve the The stability and vibration resistance of parts are achieved.
It realizes more stable clamping of machining parts, reduces vibration during processing, reduces processing errors, and improves processing accuracy and accuracy.
Smart Images
Figure CN222344879U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of four-axis CNC machining machine tools, in particular to a four-axis high-precision CNC machining machine tool. Background Art
[0002] Four-axis machining centers have an additional A-axis compared to three-axis machining centers. The additional A-axis can create more complex parts, which is difficult to achieve with three axes. This opens up new possibilities for design and manufacturing. By allowing continuous machining from different angles without manually adjusting the workpiece, four-axis machining can significantly reduce production time. The additional axis can better control the machining process, thereby improving precision and accuracy. Existing four-axis machining centers use single-arm clamping technology, which is prone to vibration of parts during machining, resulting in errors in machining accuracy. Utility Model Content
[0003] The purpose of the utility model is to provide a four-axis high-precision CNC machining machine tool to solve the problems raised in the above background technology.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a four-axis high-precision CNC machining machine tool, comprising a machine platform, a gantry, a tool movable group and a fixture assembly arranged above the machine platform, the gantry is arranged above the machine platform, and a limit platform for limiting the gantry is convexly provided around the machine platform, the tool movable group is arranged above the gantry, the fixture assembly comprises a third motor mover group, a third stator guide rail, a workbench and two clamping component assemblies, the third stator guide rail is fixedly arranged above the machine platform, the workbench is arranged above the third stator guide rail through the third motor mover group, and the clamping component assemblies are symmetrically arranged on the top of the workbench.
[0005] Preferably, the clamping member assembly includes a first servo motor, a fixing member, a rotating shaft and a clamp, the fixing member is fixedly disposed above the workbench, the first servo motor is fixedly connected to the fixing member, one end of the rotating shaft passes through the fixing member and is transmission-connected to the first servo motor, and the other end of the rotating shaft is fixedly connected to the clamp.
[0006] Preferably, a shock-absorbing and anti-skid pad is arranged on the surface of the clamp.
[0007] Preferably, the tool movable group includes a first stator guide rail, a first motor mover group, a first connecting plate, a second connecting plate, a second stator guide rail, a second motor mover group, a third connecting plate, a machine head and a tool connector. The first stator guide rail is fixedly arranged on the top of the gantry, the first connecting plate is connected to the first stator guide rail through the first motor mover group, the second connecting plate is fixedly connected to one side of the first connecting plate, the second stator guide rail is arranged on a side of the second connecting plate away from the first connecting plate, the third connecting plate is connected to the second stator guide rail through the second motor mover group, the machine head is fixedly arranged on a side of the third connecting plate away from the second motor mover group, and a tool connector is arranged at the bottom of the machine head.
[0008] Preferably, a tool body is arranged below the tool connecting member.
[0009] Preferably, the tool movable group further includes a limit protection block, and the limit protection blocks are arranged at both ends of the first stator guide rail and both ends of the second stator guide rail.
[0010] Compared with the prior art, the beneficial effects of the utility model are:
[0011] 1. A four-axis high-precision CNC machining machine, comprising a machine platform, a gantry, a tool movable group and a fixture assembly arranged above the machine platform, wherein the gantry is arranged above the machine platform, and a limit table for limiting the gantry is convexly arranged around the machine platform, the tool movable group is arranged above the gantry, the fixture assembly comprises a third motor mover group, a third stator guide rail, a workbench and two clamping component assemblies, the third stator guide rail is fixedly arranged above the machine platform, the workbench is arranged above the third stator guide rail through the third motor mover group, and the clamping component assemblies are symmetrically arranged on the top of the workbench, so as to achieve more stable clamping of processed parts, reduce vibration generated during processing, and reduce processing errors. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a front view of the overall structure of the utility model;
[0013] Figure 2 It is a side view of the overall structure of the utility model;
[0014] Figure 3 It is a top view of the overall structure of the utility model;
[0015] In the figure: machine 1, gantry 2, tool movable group 3, first stator guide rail 30, first motor mover group 31, first connecting plate 32, second connecting plate 33, second stator guide rail 34, second motor mover group 35, third connecting plate 36, machine head 37, tool connecting part 38, tool body 380, limit protection block 39, fixture assembly 4, clamping part assembly 40, first servo motor 400, fixing part 401, rotating shaft 402, fixture 403, third stator guide rail 41, workbench 42. DETAILED DESCRIPTION
[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0017] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or position relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0018] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0019] like Figures 1 to 3As shown, the present embodiment is a four-axis high-precision CNC machining machine tool, comprising a machine platform 1, a gantry 2, a tool movable group 3 and a fixture 403 assembly 4 arranged above the machine platform 1, wherein the gantry 2 is arranged above the machine platform 1, and the machine platform 1 is provided with a limit table convexly arranged around the gantry 2, and the tool movable group 3 is arranged above the gantry 2, and the fixture 403 assembly 4 comprises a clamping component assembly 40, a third stator guide rail 41 and a workbench 42, and the third stator guide rail 41 is fixedly arranged above the machine platform 1, and the workbench 42 is arranged above the third stator guide rail 41 through a third motor mover group (not shown in the figure), and the workbench 42 is provided with a clamping component assembly 40, and the clamping component assembly 40 is used to clamp the machined parts, so as to realize the clamping of the processing parts by the present invention.
[0020] Specifically, the clamping member assembly 40 includes a first servo motor 400, a fixing member 401, a rotating shaft 402 and a clamp 403. The fixing member 401 is fixedly arranged above the workbench 42. The first servo motor 400 is fixedly connected to the fixing member 401. One end of the rotating shaft 402 passes through the fixing member 401 and is transmission-connected to the first servo motor 400. The other end of the rotating shaft 402 is fixedly connected to the clamp 403. When the first servo motor 400 is operated, the rotating shaft 402 drives the clamp 403 to rotate. The rotation of the clamp 403 of the utility model realizes the increase of the fourth axis A axis of the utility model.
[0021] Furthermore, the clamping component assemblies 40 are symmetrically arranged on the top of the workbench 42, and the two clamping component assemblies 40 clamp the processed parts at the same time, which improves the stability and vibration resistance of the processed parts and improves the processing accuracy of the utility model.
[0022] Furthermore, the tool movable group 3 includes a first stator guide rail 30, a first motor mover group 31, a first connecting plate 32, a second connecting plate 33, a second stator guide rail 34, a second motor mover group 35, a third connecting plate 36, a machine head 37 and a tool connecting piece 38, wherein the first stator guide rail 30 is fixedly arranged at the top of the gantry 2, the first connecting plate 32 is connected to the first stator guide rail 30 through the first motor mover group 31, the second connecting plate 33 is fixedly connected to the first connecting plate 32 through a fastener, the second stator guide rail 34 is fixedly arranged on the front side of the second connecting plate 33, the third connecting plate 36 is connected to the second stator guide rail 34 through the second motor mover group 35, and the machine head 37 is connected to the second stator guide rail 34 through the second motor mover group 35. It is fixedly arranged at the front end of the third connecting plate 36, and a tool connecting piece 38 is arranged at the bottom of the machine head 37. The tool body 380 is arranged below the tool connecting piece 38. The first motor mover group 31 is operated to drive the first connecting plate 32 to slide along the first stator guide rail 30, thereby realizing the function of the tool movable group 3 of the utility model to move left and right. The second motor mover group 35 is operated to drive the third connecting plate 36 to slide up and down along the second stator guide rail 34, thereby realizing the function of the tool movable group 3 of the utility model to move up and down. By arranging the operation activities of the first motor mover group 31 and the second motor mover group 35, the tool movable group 3 of the utility model can move more accurately, thereby enhancing the processing accuracy of the utility model.
[0023] Furthermore, the tool movable group 3 also includes a limit protection block 39. The limit protection blocks 39 are arranged at both ends of the first stator guide rail 30 and the second stator guide rail 34 to perform limit protection on the first motor mover group 31 and the second motor mover group 35 during operation, thereby improving the safety and stability of the linear motor operation of the utility model.
[0024] The method of using this embodiment is as follows: when the user uses the utility model, the clamp 403 symmetrically arranged at the top of the workbench 42 is used to clamp and fix the parts to be processed, and the workbench 42 is moved to the bottom of the tool movable group 3 through the cooperation of the third motor mover group and the third stator guide rail 41, the first motor mover group 31 is operated, the tool movable group 3 moves left and right along the first stator guide rail 30, and the second motor mover group 35 is operated. The tool movable group 3 moves up and down along the second stator guide rail 34, and the tool movable group 3 moves along the first stator guide rail 30 and the second stator guide rail 34, realizing the function of the tool body 380 of the utility model moving left and moving up and down.
[0025] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A four-axis high-precision CNC machining machine tool, characterized in that: The invention comprises a machine platform (1), a gantry (2), a tool movable group (3) and a fixture assembly (4) arranged above the machine platform (1); the gantry (2) is arranged above the machine platform (1); a limit platform for limiting the position of the gantry (2) is protrudingly provided around the machine platform (1); the tool movable group (3) is arranged above the gantry (2); the fixture assembly (4) comprises a third motor mover group, a third stator guide rail (41), a workbench (42) and two clamping member assemblies (40); the third stator guide rail (41) is fixedly arranged above the machine platform (1); the workbench (42) is arranged above the third stator guide rail (41) through the third motor mover group; and the clamping member assemblies (40) are symmetrically arranged on the top of the workbench (42).
2. A four-axis high-precision CNC machining machine tool according to claim 1, characterized in that: The clamping member assembly (40) comprises a first servo motor (400), a fixing member (401), a rotating shaft (402) and a clamp (403); the fixing member (401) is fixedly arranged above the workbench (42); the first servo motor (400) is fixedly connected to the fixing member (401); one end of the rotating shaft (402) passes through the fixing member (401) and is transmission-connected to the first servo motor (400); and the other end of the rotating shaft (402) is fixedly connected to the clamp (403).
3. A four-axis high-precision CNC machining machine tool according to claim 2, characterized in that: A shock-absorbing and anti-skid pad is arranged on the surface of the clamp (403).
4. The four-axis high-precision CNC machining machine tool according to claim 1, characterized in that: The tool movable group (3) comprises a first stator guide rail (30), a first motor mover group (31), a first connecting plate (32), a second connecting plate (33), a second stator guide rail (34), a second motor mover group (35), a third connecting plate (36), a machine head (37) and a tool connecting piece (38); the first stator guide rail (30) is fixedly arranged on the top of the gantry (2); the first connecting plate (32) is connected to the first stator guide rail (30) via the first motor mover group (31); The second connecting plate (33) is fixedly connected to one side of the first connecting plate (32); a second stator guide rail (34) is arranged on a side of the second connecting plate (33) away from the first connecting plate (32); the third connecting plate (36) is connected to the second stator guide rail (34) via a second motor mover group (35); the machine head (37) is fixedly arranged on a side of the third connecting plate (36) away from the second motor mover group (35); a tool connecting piece (38) is arranged at the bottom of the machine head (37).
5. A four-axis high-precision CNC machining machine tool according to claim 4, characterized in that: A tool body (380) is arranged below the tool connecting member (38).
6. A four-axis high-precision CNC machining machine tool according to claim 4, characterized in that: The tool movable group (3) also includes a position limiting protection block (39), and the position limiting protection blocks (39) are arranged at both ends of the first stator guide rail (30) and the second stator guide rail (34).