Multifunctional machine tool facilitating tool changing

Abstract

The multifunctional machine tool comprises a base, a main machine frame, an auxiliary machine frame, a machine head, a machining table and a tool changing mechanism, the main machine frame is arranged on one side of the base, the auxiliary machine frame is arranged close to the main machine frame, and the machine head is connected with the main machine frame in an up-down sliding mode through a lifting unit. The machining table is arranged on the auxiliary machine frame through the XY-axis moving platform and located below the machine head, the tool changing mechanism is arranged on one side of the auxiliary machine frame through a support and comprises a driving motor, a rotating disc and a plurality of tool changing modules, and the driving motor is arranged on the support and connected with the center of the rotating disc through a rotating shaft. The multiple tool changing modules are evenly distributed on the rotary disc in the circumferential direction. According to the utility model, various cutters can be quickly replaced through the cutter replacing mechanism, the machining of door and window profiles in different working procedures can be realized through one machine tool, the working procedure conversion time is saved, the existing drilling machine or milling machine can be upgraded and transformed, high-end machine tools do not need to be purchased, the production cost is saved, and the machine tool is suitable for small, medium and micro enterprises.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tools for door and window processing, in particular to a multifunctional machine tool with convenient tool change. Background Art

[0002] In the production process of door and window profiles, different processing techniques are often involved, such as drilling air holes, opening lock grooves, milling end faces, etc. These processes often require the use of different machine tools for processing. Drilling air holes requires a drilling machine, while opening lock grooves and milling end faces require a milling machine. It is time-consuming and laborious to switch workpieces back and forth between different processes, resulting in a lot of waste of man-hours.

[0003] If you want to complete all processing steps on a machine tool, the machine tool needs to have the corresponding tool changing function. At present, some CNC machine tools use tool magazines to realize the function of automatic tool changing, such as the automatic tool changing mechanism of the tool magazine of the processing machine tool disclosed in patent CN220407984U, and the tool changing mechanism of a precision CNC machine tool disclosed in patent CN220347858U, which can realize automatic tool changing.

[0004] However, this type of structure is relatively complex and costly, and can only be used in conjunction with high-end machine tools such as machining centers and CNC machine tools. It cannot be adapted to ordinary drilling machines or milling machines. If high-end machine tools are purchased, it will be beyond the affordability of small and medium-sized enterprises.

[0005] To this end, the present application proposes a multifunctional machine tool with a simple structure, low cost and convenient tool change to solve the above problems. Utility Model Content

[0006] To achieve the above-mentioned purpose, the utility model provides a multifunctional machine tool for convenient tool changing, including a base, a main frame, an auxiliary frame, a machine head, a processing table and a tool changing mechanism, wherein the main frame is arranged on one side of the base, the auxiliary frame is arranged close to the main frame, the machine head is connected to the main frame for vertical sliding via a lifting unit, the processing table is arranged on the auxiliary frame via an XY-axis moving platform and is located below the machine head, the tool changing mechanism is arranged on one side of the auxiliary frame via a bracket, the tool changing mechanism includes a driving motor, a turntable and a plurality of tool changing modules, the driving motor is arranged on the bracket and connected to the center of the turntable via a rotating shaft, and the plurality of tool changing modules are evenly distributed on the turntable along the circumferential direction.

[0007] Furthermore, a plurality of notches are evenly distributed along the circumference of the turntable at the edge thereof, and an arc-shaped sliding groove is symmetrically provided on both sides of the notch.

[0008] Furthermore, the tool changing module includes a tool handle and a clamping arm, the rear end of the clamping arm is connected in an opening and closing manner via a torsion spring, the front end of the clamping arm is slidably connected to an arc-shaped slide groove via a roller, the front end of the clamping arm is provided with an arc-shaped clamping portion adapted to the tool handle, and the tool handle is connected to the clamping arm via the arc-shaped clamping portion.

[0009] Furthermore, the upper surface of the arc-shaped clamping portion is an inclined structure, the upper side wall of the positioning slot on the knife handle is also an inclined structure, and the lower side wall of the positioning slot on the knife handle is a flat structure.

[0010] Furthermore, a transverse slide rail is provided on the base, and the bottom of the bracket is slidably connected to the transverse slide rail via a slide seat.

[0011] Furthermore, the bracket includes a support sleeve, an adjustment rod and a crossbeam. The adjustment rod is slidably arranged in the support sleeve, and the crossbeam is arranged at the top of the adjustment rod along the horizontal direction.

[0012] Furthermore, the adjusting rod is provided with a plurality of positioning holes at intervals, and the supporting sleeve is provided with a positioning pin penetrating in the transverse direction, and the positioning pin passes through the positioning holes to fix the adjusting rod in the supporting sleeve.

[0013] Furthermore, the bottom of the support sleeve is fixedly connected to the slide seat via reinforcing ribs.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model can realize quick replacement of various cutting tools through the tool changing mechanism, and can realize different processing steps of door and window profiles through one machine tool, thus saving the time of process conversion, and can be upgraded on the existing drilling machine or milling machine, without the need to purchase high-end machine tools, thus saving production costs, and is suitable for use by small, medium and micro enterprises. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 for Figure 1 A magnified view of the local structure at point A in the middle;

[0018] Figure 3 It is a top view structural schematic diagram of the tool changing mechanism in the utility model;

[0019] Figure 4 It is a schematic diagram of the top view of the turntable in the utility model;

[0020] Figure 5 It is a schematic diagram of the top view of the clamp arm in the utility model;

[0021] Figure 6It is a schematic diagram of the connection structure between the knife handle and the clamp arm in the utility model. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments 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 in 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.

[0023] like Figure 1 As shown, the multifunctional machine tool for convenient tool changing in this embodiment includes a base 1, a main frame 2, an auxiliary frame 3, a machine head 4, a processing table 5 and a tool changing mechanism 6. The main frame 2 is arranged on one side of the base 1, the auxiliary frame 3 is arranged close to the main frame 2, the machine head 4 is connected to the main frame 2 for vertical sliding via a lifting unit 7, the processing table 5 is arranged on the auxiliary frame 3 via an XY-axis moving platform 8 and is located below the machine head 4, and the tool changing mechanism 6 is arranged on one side of the auxiliary frame 3 via a bracket 9.

[0024] Among them, the machine head 4, the processing table 5, the lifting unit 7, and the XY axis moving platform 8 are all existing technologies in this field.

[0025] The base 1 is also provided with a transverse slide rail 10 , and the bottom of the bracket 9 is slidably connected to the transverse slide rail 10 via a slide seat 11 . The bracket 9 can be pushed to reciprocate along the transverse slide rail 10 , so that the tool changing mechanism 6 is moved closer to or away from the machine head 4 .

[0026] The bracket 9 includes a support sleeve 91, an adjustment rod 92 and a crossbeam 93. The adjustment rod 92 is slidably disposed in the support sleeve 91, and the crossbeam 93 is disposed at the top of the adjustment rod 92 along the horizontal direction.

[0027] like Figure 2 As shown, a plurality of positioning holes 94 are provided at intervals on the adjusting rod 92, and a positioning pin 95 is provided on the support sleeve 91 and passes through the positioning hole 94 to fix the adjusting rod 92 in the support sleeve 91. Through the cooperation of the positioning pin 95 and the positioning hole 94, the overall height of the bracket 9 can be adjusted to adapt to machine tools of different heights.

[0028] The bottom of the support sleeve 91 is fixedly connected to the slide seat 11 via a reinforcing rib 96, thereby playing a role in strengthening the structure.

[0029] The tool changing mechanism 6 includes a driving motor 61, a turntable 62 and a plurality of tool changing modules 63. The driving motor 61 is arranged above the cross beam 93 of the bracket 9 and is connected to the center of the turntable 62 through a rotating shaft 64. The plurality of tool changing modules 63 are evenly distributed on the turntable 62 along the circumferential direction.

[0030] The driving motor 61 may be a stepping motor or a dividing motor, which can accurately control the rotation angle of the turntable 62 .

[0031] like Figure 3-4 As shown, in this embodiment, six notches 621 are evenly distributed along the circumferential direction of the edge of the turntable 62, and an arc-shaped slide groove 622 is symmetrically provided on both sides of each notch 621. A tool changing module 63 is provided at each notch 621, and different tools, such as drills, milling cutters, tapping tools, boring tools, etc., are installed on each tool changing module 63.

[0032] Each movement of the driving motor 61 can drive the turntable 62 to rotate 60°, so that different tools are aligned with the tool installation holes at the bottom of the machine head 4.

[0033] like Figure 5-6 As shown, the tool changing module 63 includes a tool handle 631 and a clamping arm 632. The rear end of the clamping arm 632 is connected in an opening and closing manner via a torsion spring 633. The front end of the clamping arm 632 is slidably connected to the arc-shaped slide groove 622 via a roller 634. The front end of the clamping arm 632 is provided with an arc-shaped clamping portion 635 that is compatible with the tool handle 631. The tool handle 631 is connected to the clamping arm 632 via the arc-shaped clamping portion 635.

[0034] The upper surface of the arc-shaped clamping portion 635 is an inclined surface structure, the upper side wall of the positioning slot 636 on the knife handle 631 is also an inclined surface structure, and the lower side wall of the positioning slot 636 is a flat surface structure. When the knife handle 631 cooperates with the clamp arm 632, the arc-shaped clamping portion 635 is located in the positioning slot 636, and the knife handle 631 can only move downward and push the clamp arms 632 on both sides open under the action of the inclined surface, so that the knife handle 631 and the clamp arm 632 are separated; on the contrary, since the lower surface of the arc-shaped clamping portion 635 and the lower side wall of the positioning slot 636 are both flat structures, the knife handle 631 cannot move upward.

[0035] When installing the tool in the utility model, the staff first pushes the bracket 9 to the side of the auxiliary frame 3, so that the tool changing mechanism 6 is located below the machine head 4, and one of the tool changing modules 63 is aligned with the tool mounting hole at the bottom of the machine head 4; because the tool mounting hole and the tool handle 631 are conical surfaces, they have a certain fault tolerance rate, so it is only necessary to roughly align the tool changing module 63 with the tool mounting hole without precise positioning.

[0036] The driving motor 61 drives the turntable 62 to rotate a certain angle so that the required tool changing module 63 is aligned with the tool installation hole so as to install the corresponding tool.

[0037] The lifting unit 7 drives the machine head 4 to move downward, so that the tool installation hole at the bottom of the machine head 4 slowly enters the conical part at the top of the tool handle 631. During this process, the tool installation hole will gradually correct the left and right position of the bracket 9 (it can also be actively corrected manually).

[0038] As the machine head 4 gradually moves downward, the upper part of the knife handle 631 completely enters the tool installation hole at the bottom of the machine head 4, completing the installation and fixation of the knife handle 631. The machine head 4 continues to move downward, and when its downward pressure reaches the critical value of the torsion spring 633, the clamping arms 632 on both sides are pushed open, so that the knife handle 631 is separated from the clamping arms 632, and finally the bracket 9 is pulled out.

[0039] When it is necessary to replace a different tool, first move the machine head 4 downward, then push the bracket 9 to the tool changing station, so that the positioning slot 636 of the tool handle 631 is inserted into the arc-shaped clamping portion 635 of the clamping arm 632 from the side, and then move the machine head 4 upward. Since the lower surface of the arc-shaped clamping portion 635 and the lower side wall of the positioning slot 636 are both planar structures, the tool handle 631 cannot move upward, so the tool handle 631 will be pulled out of the tool mounting hole, and finally the above-mentioned tool mounting action can be performed.

[0040] The utility model can realize the quick replacement of various cutting tools through the tool changing mechanism 6, and can realize the processing of door and window profiles in different processes through one machine tool, thus saving the time of process conversion, and can be upgraded on the existing drilling machine or milling machine, without the need to purchase high-end machine tools, thus saving production costs, and is suitable for use by small and medium-sized enterprises.

[0041] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multifunctional machine tool for convenient tool change, characterized in that: It includes a base, a main frame, an auxiliary frame, a machine head, a processing table and a tool changing mechanism. The main frame is arranged on one side of the base, the auxiliary frame is arranged close to the main frame, the machine head is connected to the main frame for vertical sliding via a lifting unit, the processing table is arranged on the auxiliary frame via an XY axis moving platform and is located below the machine head, the tool changing mechanism is arranged on one side of the auxiliary frame via a bracket, the tool changing mechanism includes a driving motor, a turntable and a plurality of tool changing modules, the driving motor is arranged on the bracket and connected to the center of the turntable via a rotating shaft, and the plurality of tool changing modules are evenly distributed on the turntable along the circumferential direction.

2. The multifunctional machine tool for convenient tool change according to claim 1, characterized in that: A plurality of notches are evenly distributed along the circumference of the rotating disk at the edge thereof, and an arc-shaped sliding groove is symmetrically arranged on both sides of the notch.

3. The multifunctional machine tool for convenient tool change according to claim 2, characterized in that: The tool changing module includes a tool handle and a clamping arm. The rear end of the clamping arm is connected in an opening and closing manner via a torsion spring, and the front end of the clamping arm is slidably connected to an arc-shaped slide groove via a roller. The front end of the clamping arm is provided with an arc-shaped clamping portion adapted to the tool handle, and the tool handle is connected to the clamping arm via the arc-shaped clamping portion.

4. The multifunctional machine tool for convenient tool change according to claim 3, characterized in that: The upper surface of the arc-shaped clamping portion is an inclined structure, the upper side wall of the positioning slot on the knife handle is also an inclined structure, and the lower side wall of the positioning slot on the knife handle is a flat structure.

5. The multifunctional machine tool for convenient tool change according to claim 1, characterized in that: The base is also provided with a transverse slide rail, and the bottom of the bracket is slidably connected to the transverse slide rail through a slide seat.

6. The multifunctional machine tool for convenient tool change according to claim 1, characterized in that: The bracket comprises a support sleeve, an adjustment rod and a crossbeam. The adjustment rod is slidably arranged in the support sleeve, and the crossbeam is arranged at the top end of the adjustment rod along the horizontal direction.

7. The multifunctional machine tool for convenient tool change according to claim 6, characterized in that: The adjusting rod is provided with a plurality of positioning holes at intervals, and the supporting sleeve is provided with a positioning pin which penetrates in the transverse direction. The positioning pin passes through the positioning holes to fix the adjusting rod in the supporting sleeve.

8. The multifunctional machine tool for convenient tool change according to claim 7, characterized in that: The bottom of the support sleeve is fixedly connected to the slide seat via reinforcing ribs.

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