CNC machining center tool holder structure

Abstract

This utility model discloses a CNC machining center tool holder structure, including a mounting base, a fixed base that is closed at the bottom of the mounting base, and a tool holder body integrally formed at the top of the mounting base. Mounting holes are provided at the four corners of the mounting base, and a reinforcing clamping mechanism is provided inside the mounting base at the inner edge of the mounting holes. By designing the reinforcing clamping mechanism, after the mounting base and the fixed base are fixedly installed with bolts, multiple push rods and trapezoidal push blocks are simultaneously pressed and moved. The ends of the trapezoidal push blocks smoothly contact the surface of the inclined body and clamp the limiting clamping block onto the surface of the fixed bolts for reinforcement. This provides auxiliary reinforcement and fixation after the mounting base is installed. The tool head, installed inside the tool holder body, is less prone to loosening and instability during frequent machining operations. The double-fixed installation enhances safety and improves the auxiliary reinforcement of the tool holder on the CNC machining tool.

Description

Technical Field

[0001] This utility model belongs to the field of tool holder technology, specifically relating to a tool holder structure for a CNC machining center. Background Technology

[0002] A CNC machining center is an automated machine tool equipped with a program control system. When machining on an automated machine tool, it is necessary to install machining heads inside it. Usually, the tool heads are installed by installing tool holders on the drive end inside the automated machine tool. The existing tool holders are mounting bases used to fix the tool heads in CNC machining centers.

[0003] In existing CNC machining centers, when tool holders are used to fix and install machining heads on CNC machine tools, the fixed base is welded to the drive end of the CNC machine tool, and the tool holder and the fixed base are fixed by fixing bolts after surface limiting engagement. After the fixed installation, it is not convenient to reinforce the tool holder. Therefore, when the tool holder is locked and fixed to the tool head after the fixed installation, the tool holder is easily stressed when the tool head is subjected to machining force. The frequent stress on the tool holder can easily cause the bolts to loosen, which can lead to danger and damage to the machined parts in severe cases. This affects the auxiliary fixation of the tool holder when it is installed and used on the CNC machine tool. To address this issue, this utility model proposes a CNC machining center tool holder structure. Utility Model Content

[0004] The purpose of this invention is to provide a tool holder structure for CNC 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 CNC machining center tool holder structure, including a mounting base, a fixed base that is closed at the bottom end of the mounting base, a tool holder body integrally formed at the top end of the mounting base, mounting holes at the four corners of the mounting base, a reinforcing clamping mechanism provided inside the mounting base at the inner edge of the mounting hole, the reinforcing clamping mechanism including a pushing and pressing component provided at the edge of the mounting hole, a clamping and reinforcing component provided at the end of the pushing and pressing component, and a fixing and pressing component provided at the end of the pushing and pressing component on the surface of the mounting base;

[0006] A sealing mechanism is provided on the inner surface of the end of the tool holder body. The sealing mechanism includes a mounting component located at the top of the inner surface of the tool holder body. A pressure sealing component is provided inside the mounting component. An air intake component is provided on the surface of the pressure sealing component located on the surface of the tool holder body.

[0007] Preferably, the pushing and pressing assembly includes an adjustment groove located inside the mounting base at the edge of the mounting hole, with a trapezoidal push block positioned at one end of the adjustment groove, and a push rod welded to the top of the trapezoidal push block.

[0008] Preferably, the clamping and reinforcing assembly includes a limiting clamping block installed on one side of the bottom end inside the adjusting groove. One end of the limiting clamping block is integrally formed with an inclined surface, which is in smooth contact with the surface of the trapezoidal push block. A return spring is fixed at the connection between the bottom end of the limiting clamping block and the bottom end inside the adjusting groove.

[0009] Preferably, the fixing and clamping assembly includes a limiting and closing groove formed at the top edge of the mounting hole on the surface of the mounting base, and the top end of the push rod extends into the interior of the limiting and closing groove. A pressure plate is limited inside the limiting and closing groove, and fixing screws are threadedly connected to the surface of the pressure plate at equal intervals. Internal threaded holes matching the fixing screws are formed at equal intervals on the inner side of the limiting and closing groove.

[0010] Preferably, the mounting assembly includes a mounting groove formed at the top of the inner surface of the tool holder body, and the mounting groove has an annular structure.

[0011] Preferably, the compression sealing assembly includes a flexible mounting ring fixedly installed inside the mounting groove by screws, and a sealing airbag is bonded to the inner surface of the flexible mounting ring by adhesive. An inner flexible reinforcing ring is integrally provided on the inner surface of the sealing airbag.

[0012] Preferably, the air intake assembly includes an air nozzle integrally disposed on the surface of the sealing airbag, the end of the air nozzle extending to the end of the blade holder body, and a sealing cap threadedly connected to the outer surface of the air nozzle.

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

[0014] By designing a reinforced clamping mechanism, the mounting base and the fixed base can be fixed together with fixing bolts. Then, multiple push rods and trapezoidal push blocks are simultaneously squeezed and moved. The end of the trapezoidal push block smoothly contacts the surface of the inclined body and clamps the limiting clamping block onto the surface of the fixing bolt for reinforcement. This provides auxiliary reinforcement and fixation after the mounting base is installed. The tool head installed inside the tool holder body is less likely to loosen or become unstable when subjected to frequent machining forces. The double-fixed installation makes it safer to use and improves the auxiliary reinforcement of the tool holder on the CNC machining tool. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This utility model Figure 1 Enlarged structural diagram of section A;

[0017] Figure 3 This is a partial cross-sectional view of the mounting hole, mounting base, and limiting clamping block of this utility model;

[0018] Figure 4 This utility model Figure 3 Enlarged structural diagram of section C;

[0019] Figure 5 This utility model Figure 1 Enlarged structural diagram of section B;

[0020] Figure 6 This is a partial cross-sectional view of the flexible mounting ring, sealing airbag, and tool holder body of this utility model.

[0021] In the diagram: 101, fixed base; 102, mounting base; 103, tool holder body; 1031, flexible mounting ring; 1032, mounting groove; 1033, sealing airbag; 1034, inner flexible reinforcing ring; 1035, air nozzle; 1036, sealing cap; 104, mounting hole; 1041, limiting closing groove; 1042, pressure plate; 1043, fixing screw; 1044, push rod; 1045, trapezoidal push block; 1046, adjusting groove; 1047, limiting clamping block; 1048, return spring; 1049, inclined surface. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1 to 6 This utility model provides a technical solution: a CNC machining center tool holder structure, including a mounting base 102, a fixed base 101 that is closed at the bottom end of the mounting base 102, a tool holder body 103 integrally provided at the top end of the mounting base 102, mounting holes 104 provided at the four corner positions of the mounting base 102, and a reinforcing clamping mechanism provided at the inner edge of the mounting holes 104 inside the mounting base 102.

[0024] The reinforcing clamping mechanism includes a pushing and squeezing assembly located at the edge of the mounting hole 104. The end of the pushing and squeezing assembly is provided with a clamping and reinforcing assembly, and the end of the pushing and squeezing assembly is provided with a fixing and pressing assembly on the surface of the mounting base 102. After the mounting base 102 and the fixed base 101 are fixedly installed, the reinforcing clamping mechanism reinforces the fixing bolts fixedly installed inside the mounting hole 104. The double reinforcement makes it less prone to loosening and instability.

[0025] In order to facilitate the compression and reinforcement of the limiting clamping block 1047 by pushing the compression assembly, in this embodiment, preferably, the pushing compression assembly includes an adjustment groove 1046 opened at the edge of the mounting hole 104 and located inside the mounting base 102. A trapezoidal push block 1045 is limited at the top end of one end of the adjustment groove 1046. A push rod 1044 is welded to the top end of the trapezoidal push block 1045, which can drive the trapezoidal push block 1045 to compress and adjust when multiple push rods 1044 are pressed at the same time.

[0026] To facilitate the reinforcing installation of the fixing bolt after it has been fixed inside the mounting hole 104, in this embodiment, preferably, the clamping and reinforcing assembly includes a limiting clamping block 1047 installed on one side of the bottom end inside the adjusting groove 1046. One end of the limiting clamping block 1047 is integrally formed with an inclined surface 1049. The inclined surface 1049 is in smooth contact with the surface of the trapezoidal push block 1045. When the push rod 1044 moves the trapezoidal push block 1045, the surface of the trapezoidal push block 1045 is in smooth contact with the surface of the inclined surface 1049, squeezing and pushing the limiting clamping block 1047 to clamp the surface of the fixing bolt for reinforcement. A return spring 1048 is fixed at the connection between the bottom end of the limiting clamping block 1047 and the bottom end inside the adjusting groove 1046. When disassembling, the limiting clamping block 1047 returns to its original position after the squeezing force disappears.

[0027] To facilitate the simultaneous compression and movement of the four push rods 1044 via a fixed clamping assembly, in this embodiment, preferably, the fixed clamping assembly includes a limiting closing groove 1041 formed at the top edge of the mounting hole 104 on the surface of the mounting base 102, and the top of the push rod 1044 extends into the interior of the limiting closing groove 1041. A pressure plate 1042 is limited inside the limiting closing groove 1041, and fixing screws 1043 are threaded at equal intervals on the surface of the pressure plate 1042. Internal threaded holes matching the fixing screws 1043 are formed at equal intervals on the inner side of the limiting closing groove 1041. After the pressure plate 1042 is limited and closed inside the limiting closing groove 1041, rotating the fixing screws 1043 to insert them into the internal threaded holes moves the pressure plate 1042. When the pressure plate 1042 moves, it simultaneously compresses and moves the four push rods 1044.

[0028] A sealing mechanism is provided on the inner surface of the end of the tool holder body 103. The sealing mechanism includes a mounting component located at the top of the inner surface of the tool holder body 103. A tight sealing component is provided inside the mounting component. An air inlet component is provided on the surface of the tight sealing component located on the surface of the tool holder body 103. After the tool head is installed inside the tool holder body 103, the sealing mechanism seals and protects the tool head from the inner surface of the tool holder body 103, making it difficult for chips and cutting fluid generated during machining to enter the interior.

[0029] In order to facilitate the installation of the flexible mounting ring 1031 and the sealing airbag 1033 by means of the mounting assembly, in this embodiment, preferably, the mounting assembly includes a mounting groove 1032 formed at the top of the inner surface of the tool holder body 103, and the mounting groove 1032 has a ring structure, so that the sealing airbag 1033 can be installed inside the mounting groove 1032 by means of the flexible mounting ring 1031.

[0030] To facilitate the sealing and protection of the cutting head after installation inside the tool holder body 103 using a tight-fitting sealing assembly, in this embodiment, preferably, the tight-fitting sealing assembly includes a flexible mounting ring 1031 fixed inside the mounting groove 1032 by screws. A sealing airbag 1033 is bonded to the inner surface of the flexible mounting ring 1031 with adhesive. An inner flexible reinforcing ring 1034 is integrally provided on the inner surface of the sealing airbag 1033. After the sealing airbag 1033 is installed, the cutting head is located inside the tool holder body 103. The sealing airbag 1033 inflates, causing the inner flexible reinforcing ring 1034 to contact the surface of the cutting head for tight sealing, making it difficult for debris and cutting fluid to enter the interior during machining.

[0031] To facilitate the inflation and sealing of the sealing airbag 1033 via the air intake assembly, in this embodiment, preferably, the air intake assembly includes an air nozzle 1035 integrally disposed on the surface of the sealing airbag 1033. The end of the air nozzle 1035 extends to the end of the cutter head 103. A sealing cap 1036 is threadedly connected to the outer surface of the air nozzle 1035. After installation, the air nozzle 1035 can be used to fill the interior of the sealing airbag 1033 with air, pressing the inner surface of the inner flexible reinforcing ring 1034 tightly against the outer surface of the cutter head for a tight seal. The sealing cap 1036 can then be rotated to seal the air nozzle 1035.

[0032] The working principle and usage process of this utility model: Before use, the fixed base 101 is first fixedly installed on the drive end of the CNC machining center. After the mounting base 102 and the fixed base 101 are closed in a limiting manner, the fixing bolt passes through the mounting hole 104 and is fixedly installed inside the fixed base 101, thereby fixing the tool holder body 103 and fixing the tool head inside the tool holder body 103, which facilitates the installation and use of the tool head through the tool holder.

[0033] Then, after the cutting head is installed inside the tool holder body 103, the cutting head penetrates the interior of the sealing airbag 1033. The flexible mounting ring 1031 is closed inside the mounting groove 1032 and fixed with screws. After installation, the air nozzle 1035 extends to the surface of the tool holder body 103. At this time, air is inflated into the interior of the sealing airbag 1033 through the air nozzle 1035 until the surface of the inner flexible reinforcing ring 1034 is pressed tightly against the outer surface of the cutting head for sealing and protection. The sealing cap 1036 is rotated to seal the air nozzle 1035. Thus, when the cutting head is installed through the tool holder body 103, it is not easy for chips and cutting fluid to enter the bottom end of the tool holder body 103 during operation, effectively sealing and protecting the tool holder and improving the tight sealing of the cutting head installation on the CNC machining tool.

[0034] Finally, after the fixed seat 101 and the mounting seat 102 are installed by the fixing bolts, the pressure plate 1042 is limited and closed inside the limiting closing groove 1041. When the rotating fixing screw 1043 is inserted into the internal thread hole, it drives the pressure plate 1042 to move inward, which simultaneously squeezes and moves the multiple push rods 1044 and the trapezoidal push block 1045. The end of the trapezoidal push block 1045 smoothly contacts the surface of the inclined body 1049, which squeezes and moves the limiting clamping block 1047 on the bottom side of the adjusting groove 1046 until the limiting clamping block 1047 is clamped on the outer surface of the fixing bolt for reinforcement. This strengthens the installation of the mounting seat 102 after installation. The tool head installed inside the tool holder body 103 is less likely to loosen or become unstable when subjected to frequent processing forces. The double-fixed installation makes it safer to use and improves the auxiliary reinforcement of the tool holder on the CNC machining tool.

[0035] 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 CNC machining center tool holder structure, comprising a mounting base (102), wherein a fixed base (101) is closed at the bottom end of the mounting base (102), a tool holder body (103) is integrally provided at the top end of the mounting base (102), and mounting holes (104) are provided at the four corner positions of the mounting base (102), characterized in that: The inner edge of the mounting hole (104) is provided with a reinforcing clamping mechanism inside the mounting base (102). The reinforcing clamping mechanism includes a pushing and squeezing component provided at the edge of the mounting hole (104). The end of the pushing and squeezing component is provided with a clamping and reinforcing component. The end of the pushing and squeezing component is provided with a fixing and pressing component on the surface of the mounting base (102). The inner surface of the end of the tool holder (103) is provided with a sealing mechanism. The sealing mechanism includes a mounting component disposed at the top of the inner surface of the tool holder (103). The mounting component is provided with a tight sealing component inside. The surface of the tight sealing component is provided with an air intake component on the surface of the tool holder (103).

2. The CNC machining center tool holder structure according to claim 1, characterized in that: The pushing and squeezing assembly includes an adjustment groove (1046) located inside the mounting base (102) at the edge of the mounting hole (104). A trapezoidal push block (1045) is limited at the top of one end of the adjustment groove (1046), and a push rod (1044) is welded to the top of the trapezoidal push block (1045).

3. The CNC machining center tool holder structure according to claim 2, characterized in that: The clamping and reinforcing assembly includes a limiting clamping block (1047) that is installed on one side of the bottom inside the adjusting groove (1046). One end of the limiting clamping block (1047) is integrally formed with an inclined body (1049). The inclined body (1049) is in smooth contact with the surface of the trapezoidal push block (1045). A return spring (1048) is fixed at the connection between the bottom end of the limiting clamping block (1047) and the bottom inside the adjusting groove (1046).

4. The CNC machining center tool holder structure according to claim 2, characterized in that: The fixing and clamping assembly includes a limiting closing groove (1041) with the top edge of the mounting hole (104) located on the surface of the mounting base (102), and the top end of the push rod (1044) extends into the interior of the limiting closing groove (1041). A pressure plate (1042) is limited inside the limiting closing groove (1041). The surface of the pressure plate (1042) is threaded with fixing screws (1043) at equal intervals. The inner side of the limiting closing groove (1041) is provided with internal threaded holes that match the fixing screws (1043).

5. The CNC machining center tool holder structure according to claim 1, characterized in that: The mounting assembly includes a mounting groove (1032) formed at the top of the inner surface of the tool holder body (103), and the mounting groove (1032) has an annular structure.

6. A CNC machining center tool holder structure according to claim 5, characterized in that: The compression sealing assembly includes a flexible mounting ring (1031) that is fixedly installed inside the mounting groove (1032) by screws. A sealing airbag (1033) is fixedly attached to the inner surface of the flexible mounting ring (1031) by adhesive. An inner flexible reinforcing ring (1034) is integrally provided on the inner surface of the sealing airbag (1033).

7. A CNC machining center tool holder structure according to claim 6, characterized in that: The air intake assembly includes an air nozzle (1035) integrally disposed on the surface of the sealing airbag (1033), the end of the air nozzle (1035) extending to the end of the blade holder body (103), and a sealing cap (1036) threadedly connected to the outer surface of the air nozzle (1035).

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