Z-axis tool setting gauge of machining center
By combining positive and negative threaded lead screws with limiting inserts, slots, and limiting pins, the problem of thread wear during frequent disassembly of the Z-axis tool setter is solved, achieving stable installation and high-precision tool setting.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN SHENGYUE ELECTROMECHANICAL TECH CO LTD
- Filing Date
- 2025-05-21
- Publication Date
- 2026-05-12
AI Technical Summary
During frequent disassembly and reassembly over a long period, the threaded structure of the Z-axis tool setter on the machining center wears down, leading to unstable installation and affecting the tool setting accuracy.
It adopts a combination structure of positive and negative threaded screws, limit inserts, slots and limit pins. The limit inserts and limit slots work together to limit the tool setter base in the front and back, and the limit pins limit it in the left and right, so as to prevent the tool setter base from moving.
It improves the installation and use stability of the tool setter, avoids screw wear, ensures tool setting accuracy, and has the characteristics of quick installation and disassembly.
Smart Images
Figure CN224223412U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tool setting equipment technology, specifically a Z-axis tool setting equipment for machining centers. Background Technology
[0002] A machining center is a highly automated, multi-functional CNC machine tool that integrates various machining processes such as milling, drilling, boring, and tapping, and is equipped with a tool magazine and automatic tool changer. Its core feature is that through pre-programming of a computer numerical control system, it enables multiple continuous machining operations to be completed in a single workpiece clamping, significantly improving efficiency and accuracy.
[0003] Machining centers require tool setting during the machining process to ensure the accuracy of workpiece machining. Tool setting requires a Z-axis tool setter, which is usually fixed to the worktable with screws. After tool setting, it is removed. However, due to frequent disassembly and installation over a long period of time, the thread structure of the screws wears down, which can cause the Z-axis tool setter to become unstable and prone to slight shaking. In actual machining, this can affect the accuracy of tool setting, thereby affecting the accuracy of CNC machined parts. Utility Model Content
[0004] The purpose of this invention is to provide a Z-axis tool setter for machining centers to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a Z-axis tool setting device for a machining center, comprising a fixed base, a guide groove on the upper surface of the fixed base, a threaded screw rotatably mounted in the guide groove via a bearing, the threaded screw being a positive and negative threaded screw, and threaded seats threaded onto both the positive and negative threads of the threaded screw, clamping plates fixedly mounted on the upper surfaces of the two threaded seats, two limiting strips fixedly mounted on the outer walls of the opposite sides of the two clamping plates, the two sets of limiting strips being mirror-symmetrically distributed, each limiting strip having a primary limiting hole on its upper side, a tool setting base disposed between the two clamping plates, a limiting slot adapted to the limiting strips being provided on both sides of the outer walls of the tool setting base, and a secondary limiting hole adapted to the primary limiting hole being provided on the outer walls of both the front and rear ends of the tool setting base.
[0006] Preferably, both the primary limiting hole and the secondary limiting hole are threaded through holes, and each of the primary and secondary limiting holes is provided with a limiting pin that matches its diameter.
[0007] Preferably, a Z-axis tool setter is fixedly installed at the center of the upper surface of the tool setter base.
[0008] Preferably, one end of the threaded screw passes through the fixed base and is fixedly connected to a knob, and the outer wall of the knob is provided with anti-slip serrations.
[0009] Preferably, the upper and lower ends of the guide groove and the upper surface of the fixed base are fixedly installed with limiting crossbars adapted to the tool setting base.
[0010] Preferably, the fixed base has mounting holes at all four corners of its outer surface for fixing the base body.
[0011] Preferably, the tail ends of both limiting screws are fixedly installed with nuts, and the limiting screws and nuts are integrally formed structurally.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] This invention utilizes a combination of limiting inserts and limiting slots to limit the forward and backward movement of the tool setting base, preventing it from shifting. Furthermore, the use of limiting screws and limiting holes effectively limits the left and right movement of the tool setting base, preventing any lateral movement. Through the combined use of these structures, the tool setting base can be effectively fixed in both forward / backward and left / right planes, providing a superior tenon-and-mortise type fixing effect. This enhances practicality, facilitates installation and disassembly, and avoids the wear problems associated with traditional screw-based assembly by eliminating the need for frequent, high-intensity disassembly. This significantly improves the installation and stability of the Z-axis tool setting device, resulting in better practical performance and ensuring tool setting accuracy. Attached Figure Description
[0014] Figure 1 This is a left-side three-dimensional structural diagram of the Z-axis tool setting device assembly according to an embodiment of the present invention;
[0015] Figure 2 This is a right-side perspective three-dimensional structural diagram of the Z-axis tool setting device assembly according to an embodiment of the present invention;
[0016] Figure 3 This is a schematic diagram of the upper surface structure of the fixed base according to an embodiment of the present invention;
[0017] Figure 4 This is an embodiment of the present utility model. Figure 1 A magnified structural diagram of region A.
[0018] In the diagram: 1. Fixed base; 2. Guide groove; 3. Threaded screw; 4. Threaded seat; 5. Clamping plate; 6. Limiting insert; 7. Primary limiting hole; 8. Tool setting base; 9. Limiting slot; 10. Secondary limiting hole; 11. Limiting screw; 12. Knob; 13. Z-axis tool setting device; 14. Limiting crossbar. Detailed Implementation
[0019] 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.
[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0022] Please see Figure 1-4 An embodiment of this utility model is provided: a Z-axis tool setter for a machining center, including a fixed base 1, a guide groove 2 is provided on the upper surface of the fixed base 1, and a threaded screw 3 is rotatably installed in the guide groove 2 through a bearing. The threaded screw 3 is a positive and negative threaded screw, and a threaded seat 4 is threadedly sleeved on both the positive and negative threads of the threaded screw 3.
[0023] In this structural design, since the threaded screw 3 is a forward and reverse type, when the threaded screw 3 rotates forward and reverse, the two threaded seats 4 connected to it will move relative to each other, that is, move away from each other or move closer to each other. The displacement effect of the relative movement depends on the forward and reverse rotation of the threaded screw 3.
[0024] Further, please refer to the appendix to the instruction manual. Figure 3 as well as Figure 4As shown, clamping plates 5 are fixedly installed on the upper surfaces of the two threaded seats 4. Two limiting strips 6 are fixedly installed on the outer walls of the opposite side of the two clamping plates 5. The two sets of limiting strips 6 are distributed in a mirror symmetrical manner. Each limiting strip 6 has a first-level limiting hole 7 on its upper side. A tool setting base 8 is provided between the two clamping plates 5. Limiting slots 9 that are adapted to the limiting strips 6 are provided on the outer walls of both sides of the tool setting base 8. Second-level limiting holes 10 that are adapted to the first-level limiting holes 7 are provided on the outer walls of the front and rear ends of the tool setting base 8.
[0025] Furthermore, both the primary limiting hole 7 and the secondary limiting hole 10 are threaded through holes, and the primary limiting hole 7 and the secondary limiting hole 10 are provided with limiting screws 11 that are adapted to their hole diameters.
[0026] Based on the above structure, when it is necessary to limit the installation of the tool setting base 8, the tool setting base 8 can be placed between the two clamping plates 5, and then the threaded screw 3 can be manually driven to rotate. When the threaded screw 3 rotates clockwise, the two threaded blocks 4 connected to it can move closer to each other. When the two threaded blocks 4 move closer to each other, they will synchronously drive the clamping plates 5 on them to move closer to each other.
[0027] When the two clamping plates 5 approach each other, the limiting insert 6 on the outside of the clamping plate 5 can be inserted into the limiting slot 9 of the tool setting base 8. In this way, the tool setting base 8 can be limited in the front and back by the cooperation of the limiting insert 6 and the limiting slot 9, so as to prevent the tool setting base 8 from moving back and forth.
[0028] After the limiting insert 6 is fully inserted into the limiting slot 9, the first-level limiting hole 7 of the limiting insert 6 can be aligned with the second-level limiting hole 10 of the tool setting base 8. Then, the limiting screw 11 can be screwed into the first-level limiting hole 7 and the second-level limiting hole 10. In this way, the limiting screw 11 can effectively limit the tool setting base 8 to the left and right, thereby effectively preventing the tool setting base 8 from moving left and right.
[0029] This tool setting device structure, in actual use, utilizes the cooperation of the limiting insert 6 and the limiting slot 9 to limit the forward and backward movement of the tool setting base 8, preventing it from moving forward or backward. The limiting screw 11, in conjunction with the limiting hole, effectively limits the left and right movement of the tool setting base 8, thus preventing lateral movement. Through the combined use of these structures, the front-back and left-right planar limiting and fixing of the tool setting base 8 is effectively achieved. It has a good tenon-and-mortise type limiting and fixing effect, is more practical, and is convenient to install and disassemble. By avoiding frequent high-intensity disassembly with screws, it effectively avoids the wear problems associated with traditional screw-based assembly, effectively improving the installation and use stability of this Z-axis tool setting device, resulting in better practical performance and ensuring tool setting accuracy.
[0030] In this embodiment, in order to ensure the normal tool setting effect, a Z-axis tool setting device 13 is fixedly installed at the center of the upper surface of the tool setting base 8.
[0031] In this embodiment, in order to better manually rotate the threaded screw 3, one end of the threaded screw 3 passes through the fixed base 1 and is fixedly connected to a knob 12. The outer wall of the knob 12 is provided with anti-slip serrations, so that the threaded screw 3 can be manually driven to rotate in both directions through the knob 12.
[0032] In this embodiment, in order to limit the initial placement position of the tool setting base 8, the upper and lower ends of the guide groove 2 and the upper surface of the fixed base 1 are fixedly installed with limiting crossbars 14 that are adapted to the tool setting base 8.
[0033] In this way, when the tool setting base 8 is placed, it can be placed between the two limiting horizontal bars 14. Thus, the two limiting horizontal bars 14 can initially limit the front and rear of the tool setting base 8, so that when the clamping plate 5 is displaced, the limiting insert 6 can be smoothly inserted into the inside of the limiting slot 9, which has a certain plug-in limiting effect and makes the structure more convenient to use.
[0034] In this embodiment, in order to install the Z-axis tool setter assembly of this utility model as a whole, mounting holes for fixing the base are provided at the four corners of the outer surface of the fixed base 1.
[0035] In this embodiment, in order to facilitate manual screwing in or removing of the limiting screws 11, nuts are fixedly installed at the tail ends of both limiting screws 11, and the limiting screws 11 and nuts are integrally molded.
[0036] Working principle: When the Z-axis tool setting assembly of this utility model is in use, it can be installed in the tool setting area of the machining center through the fixed base 1, and the Z-axis tool setting can ensure normal use effect.
[0037] When the Z-axis tool setter 13 needs to be installed, the tool setter base 8 can be placed between the two limiting horizontal bars 14. The two limiting horizontal bars 14 can initially limit the front and rear of the tool setter base 8, so that when the clamping plate 5 is displaced, the limiting insert 6 can be smoothly inserted into the limiting slot 9, which has a certain plug-in limiting effect and makes the structure more convenient to use.
[0038] Then, the threaded screw 3 is manually driven to rotate by knob 12. When the threaded screw 3 rotates clockwise, the two threaded blocks 4 connected to it can move closer to each other. When the two threaded blocks 4 move closer to each other, they will synchronously drive the clamping plate 5 on them to move closer to each other.
[0039] When the two clamping plates 5 approach each other, the limiting insert 6 on the outside of the clamping plate 5 can be inserted into the limiting slot 9 of the tool setting base 8. In this way, the tool setting base 8 can be limited in the front and back by the cooperation of the limiting insert 6 and the limiting slot 9, so as to prevent the tool setting base 8 from moving back and forth.
[0040] After the limiting insert 6 is fully inserted into the limiting slot 9, the first-level limiting hole 7 of the limiting insert 6 can be aligned with the second-level limiting hole 10 of the tool setting base 8. Then, the limiting screw 11 can be screwed into the first-level limiting hole 7 and the second-level limiting hole 10. In this way, the limiting screw 11 can effectively limit the tool setting base 8 to the left and right, thereby effectively preventing the tool setting base 8 from moving left and right. In this way, the rapid assembly of the Z-axis tool setting device 13 can be completed.
[0041] During disassembly, simply rotate the limiting screw 11 in the reverse direction to remove it, and then rotate the threaded screw 3 in the reverse direction to move the limiting insert 6 out of the limiting slot 9. This completes the quick disassembly of the Z-axis tool setter 13, which has good quick assembly and disassembly characteristics and is more convenient to use.
[0042] In summary, the Z-axis tool setting device structure of this utility model, in actual use, through the cooperation of the limiting insert 6 and the limiting slot 9, can limit the front and rear movement of the tool setting base 8, preventing it from moving forward and backward. Furthermore, through the cooperation of the limiting screw 11 and the limiting hole, it can effectively limit the left and right movement of the tool setting base 8, thus preventing lateral movement. Through the cooperation of the above structures, the front-to-back and left-to-right planar limiting and fixing of the tool setting base 8 can be effectively completed, providing a good tenon-and-mortise type limiting and fixing effect, enhancing practicality, and facilitating installation and disassembly. By avoiding frequent high-intensity disassembly with screws, it effectively avoids the wear problem of traditional screw-based assembly, effectively improving the installation and use stability of this utility model's Z-axis tool setting device, resulting in good practical performance and ensuring tool setting accuracy.
[0043] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A Z-axis tool setter for a machining center, comprising a fixed base (1), characterized in that, The upper surface of the fixed base (1) is provided with a guide groove (2). A threaded screw (3) is rotatably installed in the guide groove (2) through a bearing. The threaded screw (3) is a positive and negative screw. A threaded seat (4) is threaded onto both the positive and negative threads of the threaded screw (3). A clamping plate (5) is fixedly installed on the upper surface of the two threaded seats (4). Two limiting strips (6) are fixedly installed on the outer wall of the opposite side of the two clamping plates (5). The two sets of limiting strips (6) are distributed in a mirror symmetrical manner. A first-level limiting hole (7) is opened on the upper side of each limiting strip (6). A tool setting base (8) is provided between the two clamping plates (5). A limiting slot (9) adapted to the limiting strip (6) is opened on both sides of the outer wall of the tool setting base (8). A second-level limiting hole (10) adapted to the first-level limiting hole (7) is opened on the outer wall of the front and rear ends of the tool setting base (8).
2. The Z-axis tool setter for a machining center according to claim 1, characterized in that: Both the primary limiting hole (7) and the secondary limiting hole (10) are threaded through holes, and each of the primary limiting hole (7) and the secondary limiting hole (10) is provided with a limiting screw (11) that matches its hole diameter.
3. The Z-axis tool setter for a machining center according to claim 1, characterized in that, A Z-axis tool setter (13) is fixedly installed at the center of the upper surface of the tool setter base (8).
4. The Z-axis tool setter for a machining center according to claim 1, characterized in that: One end of the threaded screw (3) passes through the fixed base (1) and is fixedly connected to a knob (12). The outer wall of the knob (12) is provided with anti-slip serrations.
5. A Z-axis tool setter for a machining center according to claim 1, characterized in that: Limiting crossbars (14) adapted to the tool setting base (8) are fixedly installed at both ends of the guide groove (2) and on the upper surface of the fixed base (1).
6. A Z-axis tool setter for a machining center according to claim 1, characterized in that: The fixed base (1) has mounting holes at the four corners of its outer surface for fixing the base body.
7. A Z-axis tool setter for a machining center according to claim 2, characterized in that: Both of the limiting screws (11) are fixedly fitted with nuts at their tail ends, and the limiting screws (11) and nuts are integrally formed in a structural design.