A numerical control machine tool tool magazine placing structure
By designing limiting pads and compression components on the disc-shaped tool head of the CNC machine tool tool magazine, the problem of unstable tool position was solved, the tool was stably clamped, and the accurate operation of the robot was ensured.
Patent Information
- Application Number
- CN202522103731.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-29
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-29
AI Technical Summary
The lack of auxiliary locking design on the disc-type tool magazine of CNC machine tools leads to unstable tool position, affecting the accurate gripping and placement of the robot arm.
A disc tool magazine body with screw fixing and tool limiting gaskets were designed. The fixing gasket and support gasket are integrally injection molded. Combining compression and extrusion components, the tool is stably clamped by limiting protrusions and hemispherical limiting design.
This effectively prevents the tool holder from shifting, ensuring accurate gripping and placement by the robotic arm and improving the stability of the tool position.
Smart Images
Figure CN224674405U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of CNC machine tool magazine technology, specifically relating to a CNC machine tool magazine placement structure. Background Technology
[0002] A CNC machine tool tool magazine is a tool chuck storage device used to store multiple different types of cutting tools (such as milling cutters, drills, taps, etc.) required for machining. The tools are generally fixed to the chuck as a whole, and the tool chuck is placed on the tool magazine. There are many types of CNC machine tool tool magazines. One common type is the disc-type tool magazine. The tool disc is a two-dimensional plane, and all tool holders are fixed on a circle. The main structure of the CNC machine tool tool magazine includes the tool disc and the elastic pads made of rubber material that support the tools.
[0003] When changing tools on a CNC machine tool tool magazine, an external robotic arm is generally used to grip the tool and move it radially along the tool turret to replace the tool on the shim. During this tool replacement process, the tool gripped by the robotic arm is placed on the shim. Because the shim is elastic, the tool supported and fixed by the shim is not stable enough, and the tool position may shift, affecting the accurate gripping and placement by the robotic arm. The shim on the tool turret does not have an auxiliary locking design to clamp the tool, which is a shortcoming and needs to be improved. Existing disc-type CNC machine tool magazines have the problem that the shims on the tool disc lack an auxiliary locking design to clamp the tool when placing tools. To address this, this application proposes a CNC machine tool magazine placement structure. Utility Model Content
[0004] The purpose of this utility model is to provide a tool magazine placement structure for CNC machine tools, so as to solve the problem mentioned in the background art that there is no auxiliary locking design on the shims of the tool disc to clamp the tool.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a CNC machine tool tool magazine placement structure, comprising... The disc tool magazine body and tool limiting shims are fixed by screws. The tool limiting shims include a fixed shim and a support shim that are integrally injection molded. The opposing surfaces of the ends of the support shims are provided with blocking protrusions, and the opposing surfaces of the ends of the support shims are provided with connecting blocks. A semi-cylinder is fixed on the connecting block. A compression assembly fixedly connected to a fixing pad includes a stabilizing block, a compression spring installed inside the stabilizing block, and a compression rod with one end slidably inserted inside the stabilizing block. The extrusion assembly connected to the compression rod includes a fixed cylinder sleeved on the outside of the compression rod, connecting rods symmetrically distributed on the fixed cylinder, an extrusion block fixed to the end of the connecting rod by screws, and an extrusion rod mounted on the extrusion block.
[0006] Preferably, the support pad is U-shaped, and equidistant limiting protrusions are fixed on the surface of the end of the support pad, and the limiting protrusions are in an inclined state.
[0007] Preferably, a right-angled fixing plate is fixed on the extrusion block, and a hemisphere is fixed on the surface of the fixing plate facing the support pad.
[0008] Preferably, the distance between the fixing plate and the supporting pad is 5 mm, and the distance between adjacent limiting protrusions is the same as the distance between adjacent hemispheres.
[0009] Preferably, the stabilizing block is a cuboid shape with an open top surface, one end of the compression rod located inside the stabilizing block is a "T"-shaped columnar structure, and the other end of the compression rod is a semi-circular spherical structure.
[0010] Preferably, the extrusion assembly has a right-angled structure, and the extrusion block has a right-angled trapezoidal three-dimensional structure.
[0011] Preferably, the connecting block is a right-angled triangular three-dimensional structure, the inclined surface of the extrusion block is opposite to and parallel to the inclined surface of the connecting block, and the outer surface of the semi-cylinder is tangent to the outer surface of the extrusion rod.
[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. In this utility model, through the designed compression component, extrusion component and connecting block, the tool cassette is placed in the tool limiting pad and pushes the compression rod, connecting rod, extrusion block and extrusion rod move to extrude the connecting block and the end of the support pad, the support pad further clamps the tool cassette, and prevents the tool cassette from shifting, and has the functions of reinforcing the support pad and locking the tool cassette.
[0013] 2. In this utility model, through the design of the limiting protrusion, the fixing plate and the hemisphere, the hemisphere on the fixing plate is limited by the limiting protrusion, thus preventing the fixing plate from shifting, thereby preventing the extrusion block from shifting, and realizing the limiting of the fixing plate and the extrusion block. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 For the present utility model Figure 1 Enlarged structural diagram of section B in the middle; Figure 3 For the present utility model Figure 1 Enlarged structural diagram of section C; Figure 4 This is a three-dimensional structural diagram of the fixing plate of this utility model; In the diagram: 1. Disc-shaped tool magazine body; 2. Tool limiting shim; 3. Compression assembly; 4. Extrusion assembly; 5. Fixing plate; 6. Connecting block; 21. Fixing shim; 22. Supporting shim; 31. Stabilizing block; 32. Compression spring; 33. Compression rod; 41. Fixing cylinder; 42. Connecting rod; 43. Extrusion block; 44. Extrusion rod; 51. Hemisphere; 61. Semi-cylinder; 221. Blocking protrusion; 222. Limiting protrusion. Detailed Implementation
[0015] 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.
[0016] Please see Figures 1 to 4 This utility model provides a technical solution: a CNC machine tool tool magazine placement structure, including a disc tool magazine body 1 fixed by screws and a tool limiting gasket 2. The tool limiting gasket 2 includes an integrally injection-molded fixing gasket 21 and a supporting gasket 22. Figure 1In the diagram, A represents a cylindrical tool chuck that holds the tool in place. The tool chuck rests on a support pad 22. An external robotic arm grasps the tool chuck to facilitate tool replacement. Each end of the support pad 22 has a curved, blocking protrusion 221 on its opposing surfaces. When the tool chuck moves onto the support pad 22, the support pad 22 expands. When the tool chuck is inside the support pad 22, the elastic plastic material supporting the deformed support pad 22 returns to its original position, thus supporting the tool chuck and the tool. Each end of the support pad 22 has a connecting block 6 on its opposing surfaces. A semi-cylinder 61 is fixed to the connecting block 6. The connecting block 6 and the semi-cylinder 61 act as a retainer against the compression block 43. The compression assembly 3, fixedly connected to the fixed pad 21, includes a stabilizing block 31 and is mounted on the stabilizing block 43. The compression spring 32 inside block 31 and the compression rod 33, one end of which is slidably inserted into the stable block 31, compress the compression rod 33 when the tool chuck moves into the support pad 22. The compression rod 33 compresses the compression spring 32. The compression assembly 4 connected to the compression rod 33 consists of a fixed cylinder 41 sleeved on the outside of the compression rod 33, a connecting rod 42 symmetrically distributed on the fixed cylinder 41, a compression block 43 fixed to the end of the connecting rod 42 by screws, and a compression rod 44 installed on the compression block 43. When the compression rod 33 is compressed and moved, the compression assembly 4 moves accordingly. The fixed cylinder 41, the connecting rod 42, the compression block 43, and the compression rod 44 move. The compression block 43 and the compression rod 44 compress the semi-cylinder 61. The connecting block 6 and the end of the support pad 22 are compressed. The support pad 22 further clamps the tool chuck to prevent the tool chuck from shifting.
[0017] In this embodiment, the support pad 22 is U-shaped, and equidistant limiting protrusions 222 are fixed on the surface of the end of the support pad 22. The limiting protrusions 222 are in an inclined state. A right-angled fixing plate 5 is fixed on the extrusion block 43. A hemisphere 51 is fixed on the surface of the fixing plate 5 facing the support pad 22. When the connecting rod 42, the extrusion block 43 and the extrusion rod 44 move, the fixing plate 5 moves, and the hemisphere 51 extrudes the end of the support pad 22, causing it to deform. This facilitates the hemisphere 51 being located between adjacent limiting protrusions 222. The hemisphere 51 on the fixing plate 5 is limited by the limiting protrusions 222, preventing the fixing plate 5 from displacing, thereby preventing the extrusion block 43 from displacing, and achieving the limitation of the fixing plate 5 and the extrusion block 43.
[0018] In this embodiment, the distance between the fixing plate 5 and the support pad 22 is 5 mm. The distance between adjacent limiting protrusions 222 is the same as the distance between adjacent hemispheres 51. The hemispheres 51 on the fixing plate 5 are limited by the limiting protrusions 222 to prevent the fixing plate 5 from shifting.
[0019] In this embodiment, the stabilizing block 31 is a cuboid with an open top surface. One end of the compression rod 33 located inside the stabilizing block 31 is a "T"-shaped columnar structure, and the other end of the compression rod 33 is a semi-circular spherical structure. The spherical end of the compression rod 33 is in point contact with the tool holder, and the contact area between them is small, resulting in low friction.
[0020] In this embodiment, the extrusion assembly 4 is a right-angled structure, the extrusion block 43 is a right-angled trapezoidal three-dimensional structure, and the connecting block 6 is a right-angled triangular three-dimensional structure. The inclined surface of the extrusion block 43 is opposite to and parallel to the inclined surface of the connecting block 6. The outer surface of the semi-cylinder 61 is tangent to the outer surface of the extrusion rod 44. When the fixed cylinder 41 and connecting rod 42, the extrusion block 43 and the extrusion rod 44 move, the extrusion block 43 and the extrusion rod 44 extrude the semi-cylinder 61, and the connecting block 6 and the end of the support pad 22 are extruded. The support pad 22 further clamps the tool barrel clamp to prevent the tool barrel clamp from shifting.
[0021] Working principle and usage process of this utility model: When the tool chuck is placed on the tool limiting shim 2, the tool chuck pushes the compression rod 33. When the compression rod 33 moves, the compression rod 33 compresses the compression spring 32; When the compression rod 33 is squeezed and moved, the compression assembly 4 moves accordingly, and the fixed cylinder 41 and connecting rod 42, compression block 43 and compression rod 44 move. The extrusion block 43 and the extrusion rod 44 extrude the semi-cylinder 61, and the ends of the connecting block 6 and the support pad 22 are extruded. The support pad 22 further clamps the tool cassette holder to prevent the tool cassette holder from shifting. It has the functions of reinforcing the support pad 22 and locking the tool cassette holder. When the connecting rod 42, the pressing block 43 and the pressing rod 44 move, the fixing plate 5 moves, and the hemisphere 51 presses the end of the support pad 22, causing it to deform, which is beneficial for the hemisphere 51 to be located between adjacent limiting protrusions 222. The hemispherical 51 on the fixed plate 5 is limited by the limiting protrusion 222, which prevents the fixed plate 5 from shifting, thereby preventing the extrusion block 43 from shifting, and thus achieving the limitation of the fixed plate 5 and the extrusion block 43. When the tool chuck is removed radially, the tool chuck expands the end of the support pad 22, the end of the support pad 22 moves in the direction a, the hemisphere 51 and the limiting protrusion 222 are misaligned, and under the elastic force of the compression spring 32, the connecting rod 42, the extrusion block 43 and the extrusion rod 44 move in the opposite direction to reset. In summary: The gasket on the cutter head has an auxiliary locking design for clamping the cutter. The cutter cassette is placed inside the cutter limiting gasket 2 and pushes the compression rod 33. The connecting rod 42, the extrusion block 43 and the extrusion rod 44 move, and the ends of the connecting block 6 and the support gasket 22 are compressed. The support gasket 22 further clamps the cutter cassette, preventing the cutter cassette from shifting. It has the functions of reinforcing the support gasket 22 and locking the cutter cassette.
[0022] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A tool magazine placement structure for a CNC machine tool, characterized in that: include The disc tool magazine body (1) and tool limiting shim (2) are fixed by screws. The tool limiting shim (2) includes a fixed shim (21) and a support shim (22) integrally injection molded. The opposing surfaces of the ends of the support shim (22) are provided with blocking protrusions (221). The opposing surfaces of the ends of the support shim (22) are provided with connecting blocks (6). A semi-cylinder (61) is fixed on the connecting block (6). The compression assembly (3) is fixedly connected to the fixing pad (21), including a stabilizing block (31), a compression spring (32) installed inside the stabilizing block (31), and a compression rod (33) with one end slidably inserted inside the stabilizing block (31). The extrusion assembly (4) connected to the compression rod (33) includes a fixed cylinder (41) sleeved on the outside of the compression rod (33), connecting rods (42) symmetrically distributed on the fixed cylinder (41), an extrusion block (43) fixed to the end of the connecting rod (42) by screws, and an extrusion rod (44) installed on the extrusion block (43).
2. The tool magazine placement structure for a CNC machine tool according to claim 1, characterized in that: The support pad (22) is U-shaped, and the surface of the end of the support pad (22) is fixed with equidistant limiting protrusions (222), which are in an inclined state.
3. The tool magazine placement structure for a CNC machine tool according to claim 2, characterized in that: A right-angled fixing plate (5) is fixed on the extrusion block (43), and a hemisphere (51) is fixed on the surface of the fixing plate (5) facing the support pad (22).
4. The tool magazine placement structure for a CNC machine tool according to claim 3, characterized in that: The distance between the fixing plate (5) and the support pad (22) is 5 mm, and the distance between adjacent limiting protrusions (222) is the same as the distance between adjacent hemispheres (51).
5. The tool magazine placement structure for a CNC machine tool according to claim 1, characterized in that: The stabilizing block (31) is a cuboid with an open top surface. The compression rod (33) has a "T"-shaped columnar structure at one end inside the stabilizing block (31) and a semi-circular spherical structure at the other end.
6. The tool magazine placement structure for a CNC machine tool according to claim 1, characterized in that: The extrusion assembly (4) has a right-angle structure, and the extrusion block (43) has a right-angled trapezoidal three-dimensional structure.
7. The tool magazine placement structure for a CNC machine tool according to claim 1, characterized in that: The connecting block (6) is a right-angled triangular three-dimensional structure. The inclined surface of the extrusion block (43) is opposite to and parallel to the inclined surface of the connecting block (6). The outer surface of the semi-cylinder (61) is tangent to the outer surface of the extrusion rod (44).