Machine tool

Abstract

The utility model relates to the field of machine tools, in particular to a machine tool comprising a base, a gantry structure and a tool magazine. According to the machine tool, the side, close to a base, of the top of a gantry structure is arranged to be an upwards-sunken concave part, the side, away from the base, of the top of the gantry structure is provided with a protruding part, and a cutter head of a tool magazine is installed on the protruding part. The position of the cutterhead is raised through the arrangement of the protruding part, and then the tool changing position is raised; and the concave part is arranged, so that the machining stroke is increased, and the interference of the cutter head on the main shaft is effectively reduced or avoided. When the main shaft is arranged on the machine tool, due to the lifting of the tool changing position and the arrangement of the concave part, the displacement space for the main shaft to move up and down is increased, and the machining stroke of the main shaft is increased.

Description

Technical Field

[0001] The utility model relates to the field of machine tools, in particular to a machine tool. Background Art

[0002] The tool magazine is a crucial component of CNC machining centers. The number of tools it can hold and the speed at which it can change tools directly impact production efficiency. Vertical and horizontal machining centers typically use a disc-type tool magazine, positioned alongside the machine tool. This arrangement increases the machining center's footprint, hindering the layout of automated production lines and impacting the efficiency of large-scale production.

[0003] Tool magazines can also be placed on top of machine tools, reducing the machining center's footprint: more equipment can be arranged within the same space, improving plant utilization. However, placing the tool magazine on top can interfere with the spindle's machining, further compressing the spindle's travel, as described in Chinese patent CN111559195A. Utility Model Content

[0004] In order to solve the above problems, the purpose of the present invention is to provide a machine tool to solve the problem of interference with spindle machining when the cutter head is set on the top of the machine tool.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] The utility model provides a machine tool, comprising:

[0007] base;

[0008] The gantry structure is arranged on the base, and the top of the gantry structure is provided with an upwardly concave portion on a side close to the base. The top of the gantry structure is also provided with a connecting structure, and the connecting structure has a fixed end installed on the top of the gantry structure and an extended end cantilevered outside the top of the gantry structure;

[0009] A tool magazine having a tool disc mounted on the protruding end of the connecting structure;

[0010] Among them, the top of the gantry structure is provided with a raised portion protruding upward on a side away from the base, and the fixed end of the connecting structure is installed on the raised portion.

[0011] In some embodiments, the gantry structure is an arched structure.

[0012] In some embodiments, the raised portion is integrally provided with the gantry structure.

[0013] In some embodiments, the machine tool further comprises a mounting block, which is detachably disposed on the raised portion, and the connecting structure is mounted on the raised portion via the mounting block.

[0014] In some embodiments, a frame structure is provided on the connection structure, and a protrusion is provided on the mounting block, and the protrusion is inserted into the frame of the connection structure;

[0015] The machine tool also includes a connecting shaft, which is inserted into the connecting structure and the protrusion along the length direction of the gantry structure; the machine tool also includes an adjustment structure and a limiting structure. The adjustment structure is arranged on the protrusion and is used to push the connecting structure to rotate around the connecting shaft as the axis. The limiting structure is inserted from the upper end face of the connecting structure and presses against the protrusion.

[0016] In some embodiments, the adjustment structure includes an adjustment block and an adjustment screw. The adjustment block is arranged on the protrusion, and the adjustment screw passes through the adjustment block along the direction from the gantry structure to the cutter head and abuts against the connecting structure.

[0017] In some embodiments, the limiting structure includes a plurality of limiting screws.

[0018] In some embodiments, the adjustment structure is an adjustment block, which is rotatably disposed on the protrusion and abuts against the connection structure by rotating.

[0019] In some embodiments, an avoidance notch is provided on the side of the connection structure. When the connection structure is connected to the protrusion, the avoidance notch and the protrusion form an avoidance position, and the adjustment block is provided at the avoidance position.

[0020] In some embodiments, the machine tool further includes a positioning structure, which is inserted into the protrusion and the connecting structure.

[0021] The beneficial effects of the present invention include an upwardly concave recessed portion within the top of the gantry structure, a raised portion disposed on the top of the gantry structure, and a cutterhead mounted on the raised portion. The raised portion elevates the cutterhead, thereby increasing the tool change position; while the upwardly concave portion increases the machining stroke, effectively reducing or eliminating interference between the cutterhead and the spindle. When a spindle is installed on a machine tool, the elevated tool change position and the upwardly concave portion increase the vertical displacement space of the spindle, thereby increasing the spindle's machining stroke. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0023] Figure 1 It is a schematic structural diagram of a machine tool in some embodiments of the present utility model;

[0024] Figure 2 is a partial view of a machine tool in some embodiments of the present invention;

[0025] Figure 3 This is a structural diagram of a machine tool in some embodiments of the present invention from another perspective;

[0026] Figure 4 It is a partial enlarged view of the adjustment structure in some embodiments of the present utility model;

[0027] Figure 5 It is a partial enlarged view of the adjustment structure in other embodiments of the utility model.

[0028] The figures are marked as follows: 1-base, 2-gantry structure, 21-recessed portion, 22-raised portion, 3-cutter disc, 4-mounting block, 5-connecting structure, 6-bump, 7-connecting shaft, 8-adjustment structure, 81-adjustment block, 82-adjustment screw, 9-limiting structure, 10-positioning structure. DETAILED DESCRIPTION

[0029] In order to help those skilled in the art better understand the present invention, the following will provide a clear and complete description of the technical solutions in the embodiments of the present invention, in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present invention.

[0030] refer to Figure 1 and Figure 2 Some embodiments of the present invention relate to a machine tool. The machine tool comprises a base 1, a gantry structure 2, and a tool magazine. The gantry structure 2 is mounted on the base 1. The top of the gantry structure 2 is provided with an upwardly concave recess 21 on a side adjacent to the base 1. A connecting structure 5 is also mounted on the top of the gantry structure 2. The connecting structure 5 has a fixed end mounted on the top of the gantry structure 2 and an extended end extending beyond the top of the gantry structure 2.

[0031] The tool magazine includes a cutterhead 3, which is mounted on the protruding end of a connecting structure 5. An upwardly projecting protrusion 22 is also provided on the top of the gantry structure 2, on the side facing away from the base 1. The fixed end of the connecting structure 5 is mounted on this protrusion 22. The connecting structure 5 is located between the cutterhead 3 and the mounting block 4, creating a certain distance between them and preventing interference between the cutterhead 3 and other structures.

[0032] The present invention incorporates an upwardly recessed recess 21 within the top of the gantry structure 2, and a raised portion 22 disposed on the top of the gantry structure 2. The cutterhead 3 is mounted on this raised portion 22 via the fixed end of the connecting structure 5. The raised portion 22 elevates the cutterhead 3, thereby increasing the tool change position. The recess 21 increases the machining stroke, effectively reducing or eliminating interference between the cutterhead 3 and the spindle. When the spindle is installed on a machine tool, the elevated tool change position and the recess 21 increase the vertical displacement space of the spindle, thereby increasing the spindle's machining stroke.

[0033] When the cutterhead 3 is mounted on top of the gantry structure 2, the circular cutterhead 3 occupies a certain amount of space vertically, causing interference with the upwardly moving spindle. A raised portion 22 is provided on the top of the gantry structure 2 to raise the tool change position, and an upwardly recessed portion 21 is provided on the inner side of the top of the gantry structure 2 to increase the tool change travel distance and reduce or eliminate machining interference with the spindle caused by the cutterhead 3.

[0034] In some embodiments, please refer to Figure 1 and Figure 2 The gantry structure 2 is an arched structure. The arched structure can make the overall force more uniform, reduce the local stress of the gantry structure, and improve the stability of the gantry structure.

[0035] Further, in some embodiments, reference Figure 1 and Figure 2 In order to further increase the rigidity of the gantry structure 2 , the protrusion 22 is integrally provided with the gantry structure 2 .

[0036] In some embodiments, reference Figure 1 and Figure 2 The machine tool also includes a mounting block 4, which is detachably arranged on the raised portion 22. The connecting structure 5 is installed on the raised portion 22 through the mounting block 4, and the cutter disc 3 is arranged on the mounting block 4 through the connecting structure 5. Specifically, the setting of the mounting block 4 can further improve the position of the cutter disc 3 and reduce or eliminate interference. In addition, the detachable setting of the mounting block 4 can avoid directly installing the cutter disc 3 on the gantry structure 2. The gantry structure 2 is large in size and inconvenient to process; while the mounting block 4 is small in size and convenient to process. By setting the cutter disc 3 on the gantry structure 2 through the mounting block 4, it can also avoid setting too many structures for connecting the cutter disc 3 on the gantry structure 2, which affects the performance of the gantry structure 2.

[0037] In some embodiments, reference Figure 2 、 Figure 3 and Figure 4The connecting structure 5 is provided with a frame structure, and the mounting block 4 is provided with a protrusion 6, which is inserted into the frame of the connecting structure 5. By using a connecting shaft 7 inserted into the connecting structure 5 and the protrusion 6 along the length direction of the gantry structure 2, the connecting structure 5 provided with the frame structure can rotate around the connecting shaft 7 as the axis. The rotation of the connecting structure 5 causes the cutter head 3 to rotate around the connecting shaft 7. Figure 4 As shown, the axial direction of the connecting shaft 7 is generally along the left-right direction. It should be noted that the protrusion 6 is inserted into the connecting structure 5, and then the connecting shaft 7 is inserted into the connecting structure 5 and the protrusion 6. This allows the connecting structure 5 to rotate only slightly around the connecting shaft 7. In actual operation, the cutter head 3 only requires slight adjustments.

[0038] In some embodiments, reference Figure 3 and Figure 4 The machine tool also includes an adjustment structure 8 and a limit structure 9. The adjustment structure 8 is set on the protrusion 6 and is used to push the connecting structure 5 to rotate with the connecting shaft 7 as the axis. The rotation direction of the cutter head is referenced Figure 3 In the direction of the arrow in . After the cutter disc 3 is adjusted by the adjustment structure 8, the rotation of the connecting structure 5 is limited by the limiting structure 9. Specifically, a through hole is provided on the upper end face of the connecting structure 5, and the limiting structure 9 is inserted from the hole so that the limiting structure 9 abuts against the protrusion 6, thereby preventing the connecting structure 5 from rotating any further, thereby playing a limiting role. When it is necessary to adjust the position of the cutter disc 3 again, the limiting structure 9 is pulled out so that a gap is left between the limiting structure 9 and the protrusion 6. The gap is the movement space of the connecting structure 5, so that the connecting structure 5 can rotate with the connecting shaft 7 as the axis. When the position of the cutter disc 3 is adjusted, the limiting structure 9 is inserted again so that the limiting structure 9 abuts against the protrusion 6, thereby preventing the connecting structure 5 from rotating any further, thereby playing a limiting role.

[0039] In some embodiments, the limiting structure 9 includes limiting screws. Multiple screw holes are provided through the connecting structure 5, and multiple screws are inserted into the corresponding screw holes. The multiple screws limit the bump 6, making the limiting structure 9 apply a more uniform force to the bump 6.

[0040] In some embodiments, reference Figure 3 and Figure 4 Adjustment structure 8 includes an adjustment block 81 and an adjustment screw 82. Adjustment block 81 is mounted on protrusion 6. Adjustment screw 82 passes through adjustment block 81 in the direction from gantry structure 2 to cutterhead 3 and abuts against connection structure 5. Adjustment block 81 is fixed to protrusion 6 and cannot rotate. When cutterhead 3 needs to be adjusted, adjustment screw 82 is rotated. By turning adjustment screw 82 in or out, the cutterhead 3 is adjusted. For example, turning adjustment screw 82 in will cause connection structure 5 to rotate, which in turn drives the cutterhead 3 to rotate.

[0041] In some embodiments, reference Figure 3 and Figure 5 The adjustment structure 8 comprises an adjustment block 81, which is rotatably mounted on the protrusion 6 and rotates to abut the connecting structure 5. Specifically, the adjustment block 81 is mounted on the side of the protrusion 6. A screw is then inserted from the adjustment block 81 into the protrusion 6, positioning the adjustment block 81 on the protrusion 6 and allowing the adjustment block 81 to rotate about the screw. When the adjustment block 81 rotates, it pushes on the connecting structure 5, generating a thrust force on the connecting structure 5, thereby enabling the connecting structure 5 to rotate and thereby adjusting the rotation of the cutterhead 3.

[0042] In some embodiments, reference Figure 4 and Figure 5 An avoidance notch is provided on the side of the connecting structure 5. When the connecting structure 5 is connected to the protrusion 6, there is a certain position space between the avoidance notch and the mounting block 4, so that the avoidance notch and the protrusion 6 form an avoidance position. The adjustment block 81 is provided at the avoidance position. The position space between the avoidance notch and the mounting block 4 facilitates the installation and adjustment of the adjustment block 81.

[0043] In some embodiments, reference Figure 2 and Figure 4 The machine tool also includes a positioning structure 10, which is inserted into the protrusion 6 and the connecting structure 5. Specifically, the protrusion 6 is provided with a positioning portion extending toward one side of the base 1. The positioning structure 10 includes a screw. The screw is inserted from the positioning portion into the connecting structure 5 to position the adjusted cutter head 3.

[0044] The technical solutions of some embodiments of the present application are designed with a raised portion 22 structure on the top of the gantry structure of the machine tool, so that when a disc-shaped or umbrella-shaped tool magazine is installed on the top of the gantry structure of the machine tool, the position of the tool disc 3 can be improved; by setting the recessed portion 21, the spindle is increased by a tool changing stroke, the position of the tool magazine is also improved, the machining interference area is eliminated, and the space occupation caused by the tool magazine being arranged next to the side of the machine tool is avoided.

[0045] In addition, some embodiments of the present application are also designed with an adjustment block 81, so as to adjust the tool magazine conveniently and quickly, thereby achieving the purpose of reducing the equipment footprint and changing tools quickly and efficiently.

[0046] The above is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as the scope of protection of the present invention.

Claims

1. A machine tool, characterized in that: include: Base (1); A gantry structure (2) is arranged on the base (1), and a top of the gantry structure (2) is provided with an upwardly recessed recess (21) on a side close to the base (1). A connecting structure (5) is also installed on the top of the gantry structure (2), and the connecting structure (5) has a fixed end installed on the top of the gantry structure (2) and an extended end cantilevered outside the top of the gantry structure (2); A tool magazine, the tool magazine having a tool disc (3), the tool disc (3) being mounted on the protruding end of the connecting structure (5); Wherein, a protruding portion (22) protruding upward is provided on the top of the gantry structure (2) on a side away from the base (1), and the fixed end of the connecting structure (5) is mounted on the protruding portion (22).

2. The machine tool according to claim 1, wherein: The gantry structure (2) is an arched structure.

3. The machine tool according to claim 1, wherein: The raised portion (22) is integrally arranged with the gantry structure (2).

4. The machine tool according to claim 1 or 3, characterized in that The machine tool further comprises a mounting block (4), the mounting block (4) being detachably arranged on the raised portion (22), and the connecting structure (5) being mounted on the raised portion (22) via the mounting block (4).

5. The machine tool according to claim 4, characterized in that The connecting structure (5) is provided with a frame structure, the mounting block (4) is provided with a protrusion (6), and the protrusion (6) is inserted into the frame of the connecting structure (5); The machine tool further comprises a connecting shaft (7), which is inserted into the connecting structure (5) and the protrusion (6) along the length direction of the gantry structure (2); the machine tool further comprises an adjustment structure (8) and a limiting structure (9), wherein the adjustment structure (8) is arranged on the protrusion (6) and is used to push the connecting structure (5) to rotate around the connecting shaft (7), and the limiting structure (9) is inserted from the upper end surface of the connecting structure (5) and abuts against the protrusion (6).

6. The machine tool according to claim 5, characterized in that The adjustment structure (8) comprises an adjustment block (81) and an adjustment screw (82); the adjustment block (81) is arranged on the protrusion (6); the adjustment screw (82) passes through the adjustment block (81) along the direction from the gantry structure (2) to the cutter head (3) and abuts against the connection structure (5).

7. The machine tool according to claim 6, characterized in that The limiting structure (9) is provided with a plurality of limiting screws.

8. The machine tool according to claim 5, wherein: The adjustment structure (8) is an adjustment block (81), and the adjustment block (81) is rotatably arranged on the protrusion (6) and abuts against the connection structure (5) by rotating.

9. The machine tool according to any one of claims 6 to 8, characterized in that: A relief notch is provided on the side of the connecting structure (5); when the connecting structure (5) is connected to the protrusion (6), the relief notch and the protrusion (6) form a relief position, and the adjustment block (81) is provided at the relief position.

10. The machine tool according to claim 9, characterized in that The machine tool further comprises a positioning structure (10), wherein the positioning structure (10) is inserted into the protrusion (6) and the connecting structure (5).

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