A high-precision numerical control machine tool tool rest assembly structure

Abstract

The utility model discloses a high accuracy numerical control machine tool tool rest assembly structure relates to numerical control machine tool technical field, the utility model discloses a tool rest body, corona tooth disc, machine tool cutter and installation base plate, the inside cavity is formed in tool rest body interiorly. The utility model provides stable assembly space for corona tooth disc through the inside cavity of tool rest body, and the helical groove of its lower surface cooperates with the sliding joint spare in the sliding groove, can transform the linear movement of sliding joint spare for the rotary motion of corona tooth disc, and the accurate positioning of machine tool cutter is realized to the cooperation of the joint groove of the side of the plug -in rod body, and the installation base plate is fixed in tool rest body top through fastener, guarantees the stability of overall structure, and also is convenient for the quick dismounting of maintenance. Rotating rod body can be rotatably connected in tool rest body side portion, and the transmission gear of its end portion is engaged with corona tooth disc, when manually driving through the internal hexagon drive groove, can flexibly adjust the rotary state of corona tooth disc, and then control tool position.

Description

Technical Field

[0001] This utility model belongs to the field of CNC machine tool technology, specifically, it relates to a high-precision CNC machine tool tool post assembly structure. Background Technology

[0002] As CNC machine tools develop towards higher precision, higher efficiency, and greater intelligence, the tool post, as a core functional component for achieving rapid tool switching and precise positioning, directly affects machining quality and production efficiency.

[0003] Traditional CNC machine tool turrets mostly use simple gear transmission or lead screw and nut structures. While these can meet basic tool changing requirements, they still have the following limitations in practical applications: First, insufficient positioning accuracy. The transmission structure of traditional turrets (such as ordinary gear plates and sliding grooves) is prone to backlash or wear over long-term use, leading to deviations in tool insertion position and making it difficult to meet the stringent requirements of repeatability in precision machining. Second, poor adjustment flexibility. Manually adjusting the tool position requires complex operations (such as multiple calibrations and bolt tightening), making it difficult to achieve fast and accurate position adjustment, especially in multi-process continuous machining environments. Firstly, the low efficiency of tool changing restricts production cycle time. Secondly, the weak structural stability means that the internal transmission components of traditional tool holders (such as sliding contacts and gear discs) lack effective limiting or buffering designs, which can easily lead to loosening or increased wear due to friction after long-term use. This not only affects the overall structural stability but also shortens the service life. Thirdly, the low level of automation means that traditional tool holders rely heavily on manual operation to complete tool installation and position adjustment, making it difficult to deeply coordinate with the automated control of CNC systems. This makes it difficult to meet the high-frequency, high-response tool changing requirements in automated production lines, thus limiting the improvement of machine tool intelligence.

[0004] In view of this, this utility model is proposed. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a high-precision CNC machine tool tool post assembly structure, which solves the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] A high-precision CNC machine tool tool holder assembly structure includes: a tool holder body, a crown gear disk, a machine tool tool, and a mounting base plate. The tool holder body has an internal cavity, and the crown gear disk is assembled in the internal cavity. A spiral groove is machined on the lower surface of the crown gear disk. A sliding groove is formed on the inner bottom surface of the internal cavity, and a sliding snap-fit ​​component is slidably engaged in the sliding groove. The mounting base plate is fixedly assembled on the top of the tool holder body, and one end of the mounting base plate is fixedly mounted by a fastener.

[0008] The machine tool tool includes a tool holder, a cutting head is fixedly connected to the bottom end of the tool holder, and a plug-in rod is fixedly connected to the top end of the tool holder. The plug-in rod is slidably inserted into the bottom of the tool holder body. A snap-fit ​​groove is provided on the side of the plug-in rod, and the snap-fit ​​groove cooperates with the adapter structure of the sliding snap-fit ​​component.

[0009] Optionally, a rotating rod is rotatably connected to the side of the tool holder body. One end of the rotating rod is fixedly connected to a transmission gear, which is located in the internal cavity and meshes with the crown-shaped gear plate. The other end of the rotating rod is provided with an internal hexagonal drive groove for driving rotation.

[0010] Optionally, a sleeve structure is fixedly provided on the upper surface of the crown-shaped toothed disk, and the top end of the sleeve structure is rotatably engaged with the top wall of the internal cavity.

[0011] Optionally, a non-standard shaped rod is fixedly provided on the inner top wall of the internal cavity. The plug-in rod penetrates the bottom of the tool holder body and is inserted into the sleeve structure. A non-standard shaped hole is opened at the top of the plug-in rod, and the non-standard shaped hole is sleeved on the outer peripheral surface of the non-standard shaped rod.

[0012] Optionally, the top of the sliding snap-fit ​​component is fixedly provided with a toothed structure, which engages with the spiral groove.

[0013] Optionally, a drive motor is fixedly mounted on the upper surface of the mounting base plate, and the output end of the drive motor passes through the surface of the mounting base plate and is fixedly assembled with the top of the tool holder body.

[0014] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0015] The internal cavity of the tool holder body provides a stable assembly space for the crown gear disc. The spiral groove on its lower surface engages with the sliding engagement piece within the sliding groove, converting the rotational motion of the crown gear disc into the linear movement of the sliding engagement piece. This, combined with the engagement groove on the side of the insertion rod, achieves precise positioning of the machine tool tool. The mounting plate is fixed to the top of the tool holder body with fasteners, ensuring overall structural stability and facilitating quick disassembly and assembly during maintenance. The rotating rod is rotatably connected to the side of the tool holder body, and its end gear meshes with the crown gear disc. Manually driven via the internal hexagonal drive slot, the rotation of the crown gear disc can be flexibly adjusted, thereby controlling the tool position. Operation is convenient and the adjustment process is controllable. The sleeve structure on the upper surface of the crown gear disc rotatably engages with the top wall of the internal cavity, reducing rotational friction resistance, improving rotational smoothness, and reducing the risk of long-term wear. The non-standard shaped rod on the top wall of the internal cavity engages with the non-standard shaped hole at the top of the insertion rod, using shape limiting to prevent circumferential rotation or offset of the insertion rod, further ensuring the accuracy of the tool installation position. The toothed structure on the top of the sliding connector engages with the spiral groove, precisely transmitting motion and force, and enhancing the accuracy of tool insertion depth or position control. Furthermore, the drive motor on the upper surface of the mounting base is directly fixed to the top of the tool holder body, and can automatically drive the tool holder body to rotate or adjust its angle via its output end, achieving automated tool assembly and positioning, reducing manual intervention and improving production efficiency.

[0016] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0017] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0018] Figure 1 A schematic diagram of the overall structure of the tool post assembly for a high-precision CNC machine tool;

[0019] Figure 2 This is a schematic diagram of a machine tool tool structure;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the tool holder;

[0021] Figure 4 This is a schematic diagram of the crown-shaped toothed disc structure.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 100. Tool holder body; 101. Internal cavity; 102. Non-standard shaped rod; 103. Sliding groove;

[0024] 200. Sliding snap-fit ​​connector; 201. Toothed structure;

[0025] 300. Crown-shaped toothed disc; 301. Sleeve; 302. Spiral groove;

[0026] 400. Machine tool cutting tool; 401. Tool holder; 402. Cutting head; 403. Connecting rod body; 404. Non-standard shaped hole; 405. Snap-fit ​​groove;

[0027] 500. Rotating rod; 501. Transmission gear; 502. Internal hexagonal drive slot;

[0028] 600. Mounting base plate; 601. Fasteners;

[0029] 700. Drive motor.

[0030] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings.

[0032] Please see Figure 1-4 As shown, this embodiment provides a high-precision CNC machine tool tool holder assembly structure, including: a tool holder body 100, a crown gear disk 300, a machine tool tool 400, and a mounting base plate 600. The tool holder body 100 has an internal cavity 101. The crown gear disk 300 is assembled in the internal cavity 101. The lower surface of the crown gear disk 300 is machined with a spiral groove 302. The inner bottom surface of the internal cavity 101 is provided with a sliding groove 103. A sliding snap-fit ​​component 200 is slidably engaged in the sliding groove 103. The mounting base plate 600 is fixedly assembled on the top of the tool holder body 100. One end of the mounting base plate 600 is fixedly installed by a fastener 601.

[0033] The machine tool tool 400 includes a tool holder 401. A cutting head 402 is fixedly connected to the bottom end of the tool holder 401, and a plug-in rod 403 is fixedly connected to the top end of the tool holder 401. The plug-in rod 403 is slidably inserted into the bottom of the tool holder body 100. A snap-fit ​​groove 405 is provided on the side of the plug-in rod 403, and the snap-fit ​​groove 405 cooperates with the matching structure of the sliding snap-fit ​​member 200.

[0034] The internal cavity 101 of the tool holder body 100 provides a stable assembly space for the crown gear disk 300. The spiral groove 302 cooperates with the sliding snap-fit ​​member 200 in the sliding groove 103. The rotation of the crown gear disk drives the sliding snap-fit ​​member to move along the sliding groove, thereby achieving precise positioning of the machine tool tool 400. The mounting base plate 600 is fixed to the top of the tool holder body 100 by fasteners 601, which not only ensures the installation stability of the overall structure, but also facilitates quick disassembly and replacement during subsequent maintenance.

[0035] like Figure 3-4 As shown, in this embodiment, a rotating rod 500 is rotatably connected to the side of the tool holder body 100. A transmission gear 501 is fixedly connected to one end of the rotating rod 500. The transmission gear 501 is located in the internal cavity 101 and meshes with the crown gear 300. The other end of the rotating rod 500 has an internal hexagonal drive groove 502 for driving rotation. The rotating rod 500 is rotatably connected to the side of the tool holder body 100, and the transmission gear 501 at its end meshes with the crown gear 300. When the rotating rod 500 is driven by the internal hexagonal drive groove 502, the crown gear 300 can be indirectly driven to rotate, realizing flexible adjustment of the position of the machine tool 400. The operation is convenient and the adjustment process is highly controllable.

[0036] like Figure 3-4 As shown, a sleeve structure 301 is fixedly provided on the upper surface of the crown-shaped toothed disk 300 in this embodiment. The top end of the sleeve structure 301 is rotatably engaged with the top wall of the internal cavity 101. By rotating the sleeve structure 301 on the upper surface of the crown-shaped toothed disk 300 with the top wall of the internal cavity 101, the frictional resistance during the rotation of the crown-shaped toothed disk 300 can be reduced, the rotational stability can be improved, and the risk of wear after long-term use can be reduced, thus extending the service life of the structure.

[0037] like Figure 2-4 As shown, in this embodiment, a non-standard shaped rod 102 is fixedly installed on the inner top wall of the internal cavity 101. A connecting rod 403 penetrates the bottom of the tool holder body 100 and is inserted into the sleeve structure 301. A non-standard shaped hole 404 is opened at the top of the connecting rod 403, and the non-standard shaped hole 404 is fitted onto the outer circumferential surface of the non-standard shaped rod 102. Through the fitting and engagement of the non-standard shaped rod 102 on the inner top wall of the internal cavity 101 with the non-standard shaped hole 404 at the top of the connecting rod 403, the non-standard shape limiting design effectively prevents circumferential rotation or displacement of the connecting rod 403 during insertion, ensuring the installation position accuracy of the machine tool tool 400.

[0038] like Figure 3-4As shown, the top of the sliding snap-fit ​​connector 200 in this embodiment is fixedly provided with a toothed structure 201, which engages with the spiral groove 302. By engaging the toothed structure 201 on the top of the sliding snap-fit ​​connector 200 with the spiral groove 302, the rotational motion of the crown gear disk 300 can be converted into the linear reciprocating motion of the sliding snap-fit ​​connector 200, thereby precisely controlling the insertion depth or position of the machine tool cutter 400 and improving the positioning accuracy of the assembly process.

[0039] like Figure 1-4 As shown, a drive motor 700 is fixedly mounted on the upper surface of the mounting base 600 in this embodiment. The output end of the drive motor 700 passes through the surface of the mounting base 600 and is fixedly assembled with the top of the tool holder body 100. By directly fixing the drive motor 700 on the upper surface of the mounting base 600 to the top of the tool holder body 100, the output end of the drive motor 700 can automatically drive the tool holder body 100 to rotate or adjust its angle, thereby realizing the automated assembly and positioning of the machine tool tool 400, reducing manual intervention and improving production efficiency.

[0040] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A high-precision CNC machine tool tool post assembly structure, characterized in that, include: The tool holder body (100), crown gear disc (300), machine tool tool (400), and mounting base plate (600) are provided. The tool holder body (100) has an internal cavity (101). The crown gear disc (300) is assembled in the internal cavity (101). The lower surface of the crown gear disc (300) is machined with a spiral groove (302). The inner bottom surface of the internal cavity (101) is provided with a sliding groove (103). A sliding snap-fit ​​piece (200) is slidably engaged in the sliding groove (103). The mounting base plate (600) is fixedly assembled on the top of the tool holder body (100). One end of the mounting base plate (600) is fixedly installed by a fastener (601). The machine tool tool (400) includes a tool holder (401), a cutting head (402) is fixedly connected to the bottom end of the tool holder (401), and a plug-in rod body (403) is fixedly connected to the top end of the tool holder (401). The plug-in rod body (403) is slidably inserted into the bottom of the tool holder body (100). A snap-fit ​​groove (405) is provided on the side of the plug-in rod body (403), and the snap-fit ​​groove (405) cooperates with the adapter structure of the sliding snap-fit ​​member (200).

2. The high-precision CNC machine tool tool post assembly structure according to claim 1, characterized in that, The side of the tool holder body (100) is rotatably connected to a rotating rod (500). One end of the rotating rod (500) is fixedly connected to a transmission gear (501). The transmission gear (501) is located in the internal cavity (101) and meshes with the crown gear (300). The other end of the rotating rod (500) is provided with an internal hexagonal drive groove (502) for driving rotation.

3. The high-precision CNC machine tool tool post assembly structure according to claim 1, characterized in that, A sleeve structure (301) is fixedly provided on the upper surface of the crown toothed disc (300), and the top end of the sleeve structure (301) is rotatably engaged with the top wall of the internal cavity (101).

4. The high-precision CNC machine tool tool post assembly structure according to claim 3, characterized in that, A non-standard shaped rod (102) is fixedly installed on the inner top wall of the internal cavity (101). The plug-in rod (403) penetrates the bottom of the tool holder body (100) and is inserted into the sleeve structure (301). A non-standard shaped hole (404) is opened at the top of the plug-in rod (403). The non-standard shaped hole (404) is sleeved on the outer circumferential surface of the non-standard shaped rod (102).

5. The high-precision CNC machine tool tool post assembly structure according to claim 1, characterized in that, The top of the sliding snap-fit ​​member (200) is fixedly provided with a toothed structure (201), which engages with the spiral groove (302).

6. The high-precision CNC machine tool tool post assembly structure according to claim 1, characterized in that, A drive motor (700) is fixedly disposed on the upper surface of the mounting base plate (600), and the output end of the drive motor (700) passes through the surface of the mounting base plate (600) and is fixedly assembled with the top of the tool holder body (100).

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