Horizontal machining center automatic tool setting instrument

By introducing a spring cylinder and limit bar structure into the automatic tool setter of a horizontal machining center, the problem of bending of the return spring due to uneven force is solved, achieving higher tool setting accuracy and service life. The structure is simple and low in cost.

CN224322812UActive Publication Date: 2026-06-05DONGGUAN SHENGYUE ELECTROMECHANICAL TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN SHENGYUE ELECTROMECHANICAL TECH CO LTD
Filing Date
2025-06-05
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

The return spring of the automatic tool setter in a traditional horizontal machining center is prone to bending and tilting due to uneven force after long-term and frequent use, which affects the tool setting accuracy and service life.

Method used

A structure comprising a spring cylinder and a limiting strip is designed. Through the cooperation of the limiting slider and the limiting groove, longitudinal displacement guidance is provided to ensure the linear displacement of the reset spring, and the spring cylinder provides a full-enclosed limiting to avoid bending.

Benefits of technology

The linearity of the return spring has been improved, enhancing tool setting accuracy and service life, ensuring the normal operation of the tool setter. The structure is simple and the cost is low.

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Abstract

The utility model discloses a horizontal machining center automatic tool setting instrument, including base, the upper surface fixed mounting of base has the shell, the inside center position fixed mounting of shell has spring cylinder, and the inside installation of spring cylinder has return spring, and the top fixed mounting of return spring has the down pressure block, and the down pressure block is connected with spring cylinder slidingly, and the bottom end inner wall of shell is fixed mounting and has a plurality of circumferential distribution's limit strip, and the side of limit strip is equipped with the longitudinal limit slot, and the upper surface fixed mounting of down pressure block has the guide disc, and the outer wall fixed mounting of guide disc has a plurality of with limit strip's limit sliding block, the utility model discloses a certain up and down linear displacement guide effect is provided to spring, and this can effectively promote the compression displacement linearity and service life of return spring, thereby can guarantee the tool setting precision of the utility model disc to tool setting instrument, avoids the displacement phenomenon that traditional spring appears bending and inclination, has better use effect.
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Description

Technical Field

[0001] This utility model relates to the field of tool setting technology, specifically an automatic tool setting device for a horizontal machining center. Background Technology

[0002] A horizontal machining center is a type of CNC machine tool with its spindle axis parallel to the worktable. It is primarily used for machining various complex parts, and is particularly suitable for multi-process machining of parts with multiple working surfaces, including milling, drilling, boring, reaming, tapping, and two-dimensional and three-dimensional surface machining.

[0003] Horizontal machining centers typically include key components such as a worktable, spindle, and control system. The spindle is horizontal, and the worktable can move along the X, Y, and Z axes. They are usually also equipped with an automatically indexing rotary table, enabling multi-axis linkage, high-speed cutting, and high-precision positioning.

[0004] When machining parts, horizontal machining centers need to use automatic tool setters. Automatic tool setters are key auxiliary devices used in CNC machine tools, machining centers and other equipment to quickly measure and calibrate tool parameters. Their core function is to significantly improve machining efficiency and accuracy by reducing the number of trial cuts and manual adjustment time.

[0005] When using a tool setter, most tools rely on a spring for reset after the tool is pressed down. However, traditional tool setters lack a telescopic guide structure for the spring during reset. As a result, the spring will fatigue after prolonged and frequent use. When the spring is compressed unevenly, the middle part of the spring during reset may bend to the left or right, affecting the straightness of the spring's extension and retraction. This reduces the tool setting accuracy of the tool setter and shortens its service life. Utility Model Content

[0006] The purpose of this invention is to provide an automatic tool setter for horizontal machining centers to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an automatic tool setter for a horizontal machining center, comprising a base, an outer shell fixedly mounted on the upper surface of the base, a spring cylinder fixedly mounted at the center of the inner part of the outer shell, a return spring installed inside the spring cylinder, a pressing block fixedly mounted at the top of the return spring, the pressing block being slidably connected to the spring cylinder, a plurality of circumferentially distributed limiting strips fixedly mounted on the inner wall of the bottom end of the outer shell, longitudinal limiting grooves being formed on the sides of the limiting strips, a guide plate fixedly mounted on the upper surface of the pressing block, a plurality of limiting sliders adapted to the limiting strips fixedly mounted on the outer wall of the guide plate, the limiting sliders being slidably connected to the limiting grooves of the limiting strips, and a primary transmission column fixedly mounted at the center of the upper surface of the guide plate.

[0008] Preferably, an insulating plate is fixedly installed on the upper surface of the primary conductive column, and a plurality of uniformly distributed primary conductive sheets are fixedly installed on the outer surface of the insulating plate.

[0009] Preferably, a secondary conductive sheet is disposed above each of the primary conductive sheets, and the primary conductive sheets and the secondary conductive sheets are in conductive contact.

[0010] Preferably, several of the secondary conductive sheets are fixedly installed on the inner wall of the outer casing.

[0011] Preferably, a secondary conductive post is fixedly installed on the upper surface of the insulating plate, and a tool setting head is fixedly installed at the top of the secondary conductive post.

[0012] Preferably, the cutting head and the outer casing are slidably connected.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model features a reset spring that can be compressed and deformed within a spring cylinder. The spring cylinder provides initial full-enclosure limiting for the reset spring, preventing it from bending laterally. This ensures the linearity of the reset spring's extension and retraction, thereby improving the spring's linear displacement effect.

[0015] During the displacement of the guide plate, the side limiting slider can slide up and down within the limiting groove of the limiting strip. Through the cooperation of several limiting sliders and limiting strips, the vertical displacement of the guide plate can be guided. In actual use, this can effectively prevent the guide plate from tilting. By preventing the guide plate from tilting, the return spring can be prevented from being compressed and bent due to uneven force, thus providing better compression protection for the return spring.

[0016] By providing a certain vertical linear displacement guiding effect to the spring, the linearity of the compression displacement and service life of the return spring can be effectively improved, thereby ensuring the tool setting accuracy of the tool setting device of this utility model, avoiding the bending and tilting displacement phenomenon of traditional springs, having a better use effect, stronger practicality, and a simple overall structure, low manufacturing difficulty, low use cost, and suitable for practical implementation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the external three-dimensional structure of the automatic tool setting device according to an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the internal insulating plate structure of the automatic tool setter according to an embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the internal structure of the primary conductive column in an embodiment of the present invention;

[0020] Figure 4 This is a three-dimensional schematic diagram of the internal cutting structure of the tool setting device according to an embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the internal cutting plane structure of the tool setting device according to an embodiment of the present invention.

[0022] In the diagram: 1. Base; 2. Outer shell; 3. Spring cylinder; 4. Return spring; 5. Lower pressure block; 6. Guide plate; 7. Limiting strip; 8. Limiting slider; 9. Primary conductive post; 10. Insulating plate; 11. Primary conductive sheet; 12. Secondary conductive sheet; 13. Secondary conductive post; 14. Tool setting head. Detailed Implementation

[0023] 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.

[0024] 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.

[0025] 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.

[0026] Please see Figure 1-5 An embodiment of this utility model is provided: an automatic tool setter for a horizontal machining center, including a base 1, an outer shell 2 fixedly installed on the upper surface of the base 1, a spring cylinder 3 fixedly installed at the center of the inner part of the outer shell 2, a return spring 4 installed inside the spring cylinder 3, a lower pressure block 5 fixedly installed at the top of the return spring 4, and the lower pressure block 5 slidably connected to the spring cylinder 3, so that when the lower pressure block 5 is subjected to external vertical downward pressure, its lower pressure block 5 can compress the return spring 4 at the bottom, so that it is in a compressed state;

[0027] Several circumferentially distributed limiting strips 7 are fixedly installed on the inner wall of the bottom end of the outer shell 2. The side of the limiting strips 7 is provided with longitudinal limiting grooves. The upper surface of the lower pressure block 5 is fixedly installed with a guide plate 6. Several limiting sliders 8 that are adapted to the limiting strips 7 are fixedly installed on the outer wall of the guide plate 6. The limiting sliders 8 are slidably connected to the limiting grooves of the limiting strips 7.

[0028] In this structural design, when the guide plate 6 is subjected to downward pressure, it will compress the bottom return spring 4 through the lower pressure block 5. The return spring 4 can be compressed and deformed within the spring cylinder 3, and the spring cylinder 3 can perform preliminary full-enclosure limiting work on the return spring 4, preventing the return spring 4 from bending to the side. This ensures the linearity of the return spring 4's extension and retraction, thereby improving the linear displacement effect of the spring.

[0029] During the displacement of the guide plate 6, the side limiting slider 8 can slide up and down within the limiting groove of the limiting strip 7. Through the cooperation of several limiting sliders 8 and limiting strip 7, the vertical displacement of the guide plate 6 can be guided. In actual use, the tilting of the guide plate 6 can be effectively prevented. By preventing the guide plate 6 from tilting, the compression and bending of the return spring 4 due to uneven force can be effectively prevented, thus providing better compression protection for the return spring 4.

[0030] In this embodiment, in order to ensure the normal use of the tool setting device of this utility model, a primary conductive column 9 is fixedly installed at the center of the upper surface of the guide plate 6, an insulating plate 10 is fixedly installed on the upper surface of the primary conductive column 9, and a plurality of uniformly distributed primary conductive sheets 11 are fixedly installed on the outer surface of the insulating plate 10.

[0031] Furthermore, a secondary conductive sheet 12 is provided above each primary conductive sheet 11, and the primary conductive sheet 11 and the secondary conductive sheet 12 are electrically connected. Several secondary conductive sheets 12 are fixedly installed on the inner wall of the outer casing 2.

[0032] Furthermore, a secondary conduction post 13 is fixedly installed on the upper surface of the insulating plate 10, and a tool setting head 14 is fixedly installed at the top of the secondary conduction post 13. The tool setting head 14 is slidably connected to the outer shell 2.

[0033] Based on the above structure, when the automatic tool setter of this utility model is in use, the tool of the horizontal machining center can press down on the tool setting head 14 of this utility model under the action of its drive structure. After being pressed down by the tool, the tool setting head 14 can be lowered. When the tool setting head 14 is lowering, it will drive the insulating plate 10 to lower synchronously through the secondary transmission column 13. When the insulating plate 10 lowers, the primary conductive plate 11 on its outer side can also lower synchronously. At this time, the primary conductive plate 11 and the secondary conductive plate 12 are separated and are in a de-energized state. The tool setter transmits the de-energized state to the CNC center system. The CNC system receives the circuit break signal, thereby triggering axis motion locking and compensation calculation, thus ensuring the normal tool setting operation of the tool setter of this utility model and ensuring normal use effect.

[0034] Working principle: When in use, the automatic tool setter can be installed in a horizontal machining center through the base 1 and electrically connected to it so that it can be connected to the CNC system of the machining center through the data cable harness;

[0035] When the automatic tool setter of this utility model is in use, the tool of the horizontal machining center can press down on the tool setting head 14 of this utility model under the action of its drive structure. After being pressed down by the tool, the tool setting head 14 can be lowered. When the tool setting head 14 is lowering, it will drive the insulating plate 10 to descend synchronously through the secondary transmission column 13. When the insulating plate 10 descends, the primary conductive plate 11 on its outer side can descend synchronously. At this time, the primary conductive plate 11 and the secondary conductive plate 12 are separated and are in a de-energized state. The tool setter transmits the de-energized state to the CNC center system. The CNC system receives the circuit breaker signal and triggers axis motion locking and compensation calculation, thereby ensuring the normal tool setting operation of the tool setter of this utility model and ensuring normal use effect.

[0036] When the insulating plate 10 is descending, the insulating plate 10 can press the lower pressure block 5 through the primary conductive column 9, causing the lower pressure block 5 to compress the return spring 4 at the bottom, thereby putting the return spring 4 in a compressed state. When the tool of the machining center is removed after the tool setting is completed, the pressure disappears, and the compressed return spring 4 can elastically reset. When the return spring 4 elastically resets, it elastically extends, thereby pushing the structural assembly on it to move upward. At this time, the primary conductive plate 11 and the secondary conductive plate 12 make conductive contact again, and each structure resets for the next tool setting and movement.

[0037] The present invention allows the reset spring 4 to be compressed and deformed within the spring cylinder 3, thereby enabling the spring cylinder 3 to perform a preliminary full-enclosure limiting function on the reset spring 4, preventing the reset spring 4 from bending to the side, thus ensuring the linearity of the reset spring 4 and improving the linear displacement effect of the spring.

[0038] During the displacement of the guide plate 6, the side limiting slider 8 can slide up and down within the limiting groove of the limiting strip 7. Through the cooperation of several limiting sliders 8 and limiting strip 7, the vertical displacement of the guide plate 6 can be guided. In actual use, the tilting of the guide plate 6 can be effectively prevented. By preventing the guide plate 6 from tilting, the compression and bending of the return spring 4 due to uneven force can be effectively prevented, thus better protecting the return spring 4 from compression.

[0039] By providing a certain vertical linear displacement guiding effect to the spring, the linearity of the compression displacement of the return spring 4 and its service life can be effectively improved, thereby ensuring the tool setting accuracy of the tool setting device of this utility model, avoiding the bending and tilting displacement phenomenon of traditional springs, having a better use effect, stronger practicality, and a simple overall structure, low manufacturing difficulty, low use cost, and suitable for practical implementation.

[0040] 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. An automatic tool setter for a horizontal machining center, comprising a base (1), characterized in that, A housing (2) is fixedly installed on the upper surface of the base (1). A spring cylinder (3) is fixedly installed at the center of the inner part of the housing (2). A return spring (4) is installed inside the spring cylinder (3). A pressing block (5) is fixedly installed at the top of the return spring (4). The pressing block (5) is slidably connected to the spring cylinder (3). Several circumferentially distributed limiting strips (7) are fixedly installed on the inner wall of the bottom end of the housing (2). A longitudinal limiting groove is opened on the side of the limiting strip (7). A guide plate (6) is fixedly installed on the upper surface of the pressing block (5). Several limiting sliders (8) adapted to the limiting strips (7) are fixedly installed on the outer wall of the guide plate (6). The limiting sliders (8) are slidably connected to the limiting grooves of the limiting strips (7). A primary transmission column (9) is fixedly installed at the center of the upper surface of the guide plate (6).

2. The automatic tool setter for a horizontal machining center according to claim 1, characterized in that: An insulating plate (10) is fixedly installed on the upper surface of the primary conductive column (9), and a number of uniformly distributed primary conductive sheets (11) are fixedly installed on the outer surface of the insulating plate (10).

3. The automatic tool setter for a horizontal machining center according to claim 2, characterized in that: Each of the primary conductive sheets (11) is provided with a secondary conductive sheet (12) above it, and the primary conductive sheet (11) and the secondary conductive sheet (12) are in conductive contact.

4. The automatic tool setter for a horizontal machining center according to claim 3, characterized in that: Several of the secondary conductive sheets (12) are fixedly installed on the inner wall of the outer casing (2).

5. An automatic tool setter for a horizontal machining center according to claim 2, characterized in that: A secondary conductive post (13) is fixedly installed on the upper surface of the insulating plate (10), and a cutting head (14) is fixedly installed on the top of the secondary conductive post (13).

6. An automatic tool setter for a horizontal machining center according to claim 5, characterized in that: The cutting head (14) is slidably connected to the outer casing (2).