Tool magazine capacity expansion device for vertical machining center

Abstract

The utility model relates to a tool magazine capacity expanding device for a vertical machining center, and aims to solve the problems that in the prior art, large-size tools seriously affect the capacity of a tool magazine, multiple persons need to be matched for installation when the large-size tools are installed in the tool magazine, the labor intensity is increased, the tool changing efficiency is reduced, operators need to enter a machine tool wholly, and the machining cost is high. Certain potential safety hazards exist. According to the tool magazine expansion device, a U-shaped support is arranged at the top of a base, cushion blocks distributed on the two sides of an opening of the U-shaped support are arranged at the top of the U-shaped support, and a U-shaped clamping block is arranged between the two cushion blocks; mounting grooves are formed in the attaching positions of the two side walls of the U-shaped clamping block and the cushion block, knife handle check blocks are slidably mounted in the mounting grooves, one side of each knife handle check block is in an arc shape, the arc ends of the knife handle check blocks can stretch into the inner side of the U-shaped clamping block, and a plurality of reset assemblies are arranged between the non-arc ends of the knife handle check blocks and the inner side walls of the sides, away from the guide groove, of the mounting grooves; pressing plates are arranged on the opening sides of the mounting grooves.

Description

Technical Field

[0001] The utility model relates to a tool magazine expansion device, in particular to a tool magazine expansion device used for a vertical machining center. Background Art

[0002] With the continuous development of society, the high-precision machining industry has entered a rapid development stage. High-precision machining is widely used in high-speed rail, automobile, shipbuilding, precision machinery, mold and other industries, and is highly dependent on vertical machining centers. In order to meet the machining needs of vertical machining centers, tool magazines are equipped for vertical machining centers to facilitate tool replacement during machining, so as to improve the production and machining efficiency of vertical machining centers.

[0003] Although the tool magazine can store cutting tools, for some large-sized cutting tools (mass greater than 15kg, tool diameter greater than 100mm; such as large disc cutters, angle heads, etc.), when the tool magazine is used for storage, the large-sized cutting tools seriously affect the capacity of the tool magazine, and when loading large-sized cutting tools into the tool magazine, multiple people are required to cooperate in the installation, which increases labor intensity while reducing tool change efficiency. In addition, the operator needs to enter the interior of the machine tool with his whole body, which poses certain safety hazards. Utility Model Content

[0004] The utility model aims to solve the technical problems in the prior art that large-sized tools seriously affect the capacity of the tool magazine, and that multiple people are required to cooperate in the installation when loading large-sized tools into the tool magazine, which increases labor intensity and reduces tool change efficiency. In addition, the operator needs to enter the interior of the machine tool with his whole body, which poses certain safety hazards. A tool magazine expansion device for a vertical machining center is provided.

[0005] In order to solve the above technical problems, the technical solutions provided by the utility model are as follows:

[0006] A tool magazine expansion device for a vertical machining center, which is special in that:

[0007] It includes a base in a frustum frame structure, a notch is arranged at the top of the side of the base, and a bottom plate is arranged at the bottom of the base for connecting with the machine tool;

[0008] A U-shaped bracket is arranged on the top of the base, and pads are arranged on the top of the U-shaped bracket and distributed on both sides of the opening of the U-shaped bracket, and a U-shaped clamping block is arranged between the two pads; the openings of the U-shaped bracket and the U-shaped clamping block are located on the same side as the notch for inserting the tool;

[0009] The pad block and the outer walls on both sides of the opening of the U-shaped block are respectively provided with mounting grooves at the joints, and the outer walls on both sides of the opening of the U-shaped block are respectively provided with guide grooves corresponding to and communicating with the mounting grooves, and a tool handle stopper is installed in the mounting groove and the tool handle stopper can move along the guide groove and extend into the inner side of the U-shaped block, and one end of the tool handle stopper facing the inner side of the U-shaped block is an arc end for abutting against the tool handle of the tool, and the other end is a non-arc end;

[0010] The inner walls on both sides of the U-shaped block are provided with limiting grooves connected to the mounting groove, and the limiting grooves are adapted to the arc end of the tool handle stopper, and are used to limit the tool handle stopper along the moving direction; a plurality of reset components are arranged between the non-arc end of the tool handle stopper and the inner side wall of the mounting groove away from the guide groove;

[0011] The opening ends of the upper parts of the installation groove and the guide groove are provided with pressure plates for limiting the position of the tool handle stopper and the reset assembly.

[0012] Furthermore, the reset assembly comprises a reset spring, and two ends of the reset spring are respectively in contact with the non-arc end of the shank stopper and the inner side wall of the mounting groove away from the guide groove.

[0013] Further, or, the reset assembly comprises a reset spring and a guide block, the guide block is installed in the middle of the reset spring, and the two ends of the reset spring are respectively abutted against the non-arc end of the handle stopper and the inner side wall of the mounting groove away from the guide groove;

[0014] A reset groove matching the guide block is arranged at the bottom of the pressure plate along the expansion and contraction direction of the reset spring, and the guide block can slide along the reset groove.

[0015] Furthermore, a plurality of evenly distributed columns are fixedly connected to the top of the base, the tops of the columns pass through the cushion blocks, and the tops of the columns are fixedly mounted with limit plates by bolts;

[0016] A buffer spring is sleeved on the column, and the buffer spring is located between the base and the U-shaped bracket, and two ends of the buffer spring are respectively in contact with the U-shaped bracket and the base.

[0017] Furthermore, bosses are provided at the lower ends of the two cushion blocks on the sides close to each other, and the upper surfaces of the two bosses form a U-shaped card block mounting surface, and the U-shaped card block is fixedly mounted on the U-shaped card block mounting surface.

[0018] Furthermore, a machine tool connecting plate is embedded in the bottom plate, and a plurality of connecting holes for connecting to the machine tool are formed on the machine tool connecting plate.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] 1. The tool magazine expansion device for a vertical machining center provided by the utility model is fixed to the machine tool through a bottom plate, and the tool is loaded into the opening of the U-shaped block through the notch of the base, the U-shaped bracket and the opening of the U-shaped block, so as to realize the storage and placement of the tool. At the same time, the tool can be fixed in the U-shaped block through the cooperation of the tool handle block and the reset assembly to prevent the tool from falling due to vibration during the machining process of the machine tool.

[0021] 2. The tool magazine expansion device for a vertical machining center provided by the utility model has a column and a buffer spring. The column can support the buffer spring. The buffer spring can absorb the impact force between the spindle and the base when the tool is taken or placed, thereby avoiding the problem of slight deformation of the spindle and the lead screw of the machine tool due to impact, thereby affecting the accuracy of the machine tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the utility model;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of the embodiment of the utility model without the pressing plate;

[0024] Figure 3 for Figure 2 A schematic diagram of the structure enlargement at the center A;

[0025] Explanation of the accompanying drawings: 1-base, 2-bottom plate, 21-machine tool connecting plate, 211-connecting hole, 3-U-shaped bracket, 4-pad, 5-U-shaped block, 6-tool handle stopper, 61-arc end, 62-non-arc end, 7-reset spring, 8-guide block, 9-pressure plate, 10-column, 11-buffer spring, 12-limiting plate, 13-bolt, 14-mounting groove. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying drawings to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] like Figure 1 and Figure 2 As shown, a tool magazine expansion device for a vertical machining center includes a base 1 in a frustum frame structure, a bottom plate 2 is provided at the bottom of the base 1, a machine tool connecting plate 21 is embedded in the bottom plate 2, and a plurality of connecting holes 211 for connecting to the machine tool are opened on the machine tool connecting plate 21; the tool magazine expansion device is fixed to the machine tool through the connecting holes 211 on the machine tool connecting plate 21, so as to realize the fixation of the tool magazine expansion device in the machine tool.

[0028] A notch is provided at the top of the side of the base 1, a U-shaped bracket 3 is provided at the top of the base 1, and pads 4 distributed on both sides of the opening of the U-shaped bracket 3 are provided at the top of the U-shaped bracket 3, and bosses are provided at the lower ends of the two pads 4 on the side close to each other, and the upper surfaces of the two bosses constitute a U-shaped block mounting surface, and the U-shaped block 5 is fixedly installed on the U-shaped block mounting surface; the opening of the U-shaped block 5 matches the size of the tool handle, and in order to be able to place a variety of tools, the U-shaped block 5 can be replaced according to the size of the tool.

[0029] In order to put the tool into the tool magazine expansion device, the opening and the notch of the U-shaped bracket 3 and the U-shaped clamping block 5 are located on the same side for tool loading.

[0030] like Figure 2 and Figure 3 As shown, mounting grooves 14 are respectively provided at the fitting parts of the outer walls on both sides of the opening of the cushion block 4 and the U-shaped block 5, and guide grooves corresponding to and connected with the mounting grooves 14 are respectively provided on the outer walls on both sides of the opening of the U-shaped block 5, and a tool handle stopper 6 is installed in the mounting groove 14 and the tool handle stopper 6 can move along the guide groove and extend into the inner side of the U-shaped block 5, and one end of the tool handle stopper 6 facing the inner side of the U-shaped block 5 is an arc end 61 for abutting against the tool handle of the tool, and the other end is a non-arc end 62; limiting grooves connected with the mounting groove 14 are provided on the inner walls on both sides of the U-shaped block 5, and the limiting grooves are adapted to the arc end 61 of the tool handle stopper 6 for limiting the tool handle stopper 6 along the movement direction; a plurality of reset components are provided between the non-arc end 62 of the tool handle stopper 6 and the inner side wall of the mounting groove 14 away from the guide groove. The opening ends of the mounting groove 14 and the upper part of the guide groove are provided with a pressing plate 9 for limiting the position of the tool handle stopper 6 and the reset assembly.

[0031] In the process of moving the tool into the U-shaped block 5, the tool handle squeezes the arc end 61 of the tool handle stopper 6, causing the tool handle stopper 6 to squeeze the reset component and retract into the mounting groove 14. When the tool handle is placed in place, the tool handle stopper 6 extends out of the mounting groove 14 under the action of the reset component, fixing the position of the tool in the U-shaped block 5 to prevent the tool from falling off from the open side of the U-shaped block 5 during machine tool processing.

[0032] The reset assembly includes a reset spring 7 and a guide block 8. The guide block 8 is installed in the middle of the reset spring 7. The two ends of the reset spring 7 are respectively abutted against the non-arc end 62 of the shank stop block 6 and the inner wall of the mounting groove 14 away from the guide groove. A reset groove matching the guide block 8 is provided at the bottom of the pressure plate 9 along the telescopic direction of the reset spring 7, and the guide block 8 can slide along the reset groove.

[0033] The guide block 8 is installed in the middle of the return spring 7 and matches with the return groove at the bottom of the pressure plate 9, so that the return spring 7 can maintain maximum efficiency during the compression and return process.

[0034] In order to reduce the impact force between the machine tool spindle and the tool magazine expansion device during the tool change process, a plurality of evenly distributed columns 10 are fixedly connected to the top of the base 1, the top of the column 10 passes through the cushion block 4, and the top of the column 10 is fixedly installed with a limit plate 12 by a bolt 13; a buffer spring 11 is sleeved on the column 10, and the buffer spring 11 is located between the base 1 and the U-shaped bracket 3, and the two ends of the buffer spring 11 are respectively in contact with the U-shaped bracket 3 and the base 1. Through the cooperation of the buffer spring 11 and the column 10, after the U-shaped bracket 3, the cushion block 4 or the U-shaped clamping block 5 are impacted by the spindle, the buffer spring is compressed along the column to reduce the impact between the spindle and the tool magazine expansion device, and ensure that the machining accuracy of the machine tool does not change due to the impact.

[0035] When the tool magazine expansion device of the utility model is used for a vertical machining center, it is fixed inside the machine tool through the connecting hole 211 on the machine tool connecting plate 21, and a tool path is set on the machine tool. When the tool needs to be replaced, the machine tool spindle completes the removal or placement of the tool through the tool path.

[0036] In other embodiments of the present utility model, the reset assembly includes a reset spring 7, and both ends of the reset spring 7 are respectively abutted against the non-arc end 62 of the shank stopper 6 and the inner side wall of the mounting groove 14 away from the guide groove.

[0037] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or replacements within the technical scope disclosed in the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A tool magazine expansion device for a vertical machining center, characterized in that: It comprises a base (1) in the form of a frustum frame structure, a notch is arranged at the top end of the side of the base (1), and a bottom plate (2) is arranged at the bottom of the base (1) for connection with a machine tool; A U-shaped bracket (3) is arranged on the top of the base (1); cushion blocks (4) are arranged on the top of the U-shaped bracket (3) and are distributed on both sides of the opening of the U-shaped bracket (3); a U-shaped clamping block (5) is arranged between the two cushion blocks (4); the openings of the U-shaped bracket (3) and the U-shaped clamping block (5) are located on the same side as the notch, and are used for inserting a tool; The pad (4) and the outer walls of both sides of the opening of the U-shaped clamping block (5) are respectively provided with mounting grooves (14), and the outer walls of both sides of the opening of the U-shaped clamping block (5) are respectively provided with guide grooves corresponding to and communicating with the mounting grooves (14). A tool handle stopper (6) is installed in the mounting groove (14) and the tool handle stopper (6) can move along the guide groove and extend into the inner side of the U-shaped clamping block (5). One end of the tool handle stopper (6) facing the inner side of the U-shaped clamping block (5) is an arc end (61) for contacting with the tool handle of the tool, and the other end is a non-arc end (62); The inner walls on both sides of the U-shaped clamping block (5) are provided with limiting grooves connected to the mounting groove (14), the limiting grooves being matched with the arc ends (61) of the tool handle stopper (6) and used for limiting the tool handle stopper (6) along the moving direction; a plurality of reset components are provided between the non-arc ends (62) of the tool handle stopper (6) and the inner side wall of the mounting groove (14) away from the guide groove; The opening ends of the upper parts of the installation groove (14) and the guide groove are provided with a pressing plate (9) for limiting the position of the tool handle stopper (6) and the reset assembly.

2. The tool magazine expansion device for a vertical machining center according to claim 1, characterized in that: The reset assembly comprises a reset spring (7), the two ends of which are respectively in contact with the non-arc end (62) of the handle stopper (6) and the inner side wall of the mounting groove (14) away from the guide groove.

3. The tool magazine expansion device for a vertical machining center according to claim 1, characterized in that: Alternatively, the reset assembly comprises a reset spring (7) and a guide block (8), wherein the guide block (8) is mounted in the middle of the reset spring (7), and both ends of the reset spring (7) are respectively in contact with the non-arc end (62) of the handle stopper (6) and the inner side wall of the mounting groove (14) away from the guide groove; A reset groove matching the guide block (8) is arranged at the bottom of the pressure plate (9) along the expansion and contraction direction of the reset spring (7), and the guide block (8) can slide along the reset groove.

4. The tool magazine expansion device for a vertical machining center according to claim 2 or 3, characterized in that: A plurality of evenly distributed columns (10) are fixedly connected to the top of the base (1), the top ends of the columns (10) pass through the cushion blocks (4), and the top ends of the columns (10) are fixedly mounted with limit plates (12) via bolts (13); The upright column (10) is sleeved with a buffer spring (11), which is located between the base (1) and the U-shaped bracket (3), and the two ends of the buffer spring (11) are respectively in contact with the U-shaped bracket (3) and the base (1).

5. The tool magazine expansion device for a vertical machining center according to claim 4, characterized in that: The lower ends of the two cushion blocks (4) on the sides close to each other are both provided with bosses, and the upper surfaces of the two bosses form a U-shaped clamping block mounting surface, and the U-shaped clamping block (5) is fixedly mounted on the U-shaped clamping block mounting surface.

6. The tool magazine expansion device for a vertical machining center according to claim 5, characterized in that: A machine tool connecting plate (21) is embedded in the bottom plate (2), and a plurality of connecting holes (211) for connecting to a machine tool are provided on the machine tool connecting plate (21).

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