Milling device of combined tool rest

Abstract

The utility model provides a milling device of a combined tool rest. Relates to the field of profile machining equipment, and aims to solve the problem that errors are accumulated due to the fact that a plurality of functional holes in the same section position of a whole profile are located and machined from a plurality of positions at present. The plurality of milling machine heads can respectively work to complete the processing of functional holes on the section bar, and meanwhile, the milling machine heads share the cutter rest, so that the positioning reference can be unified, the error accumulation is reduced, and the processing precision is improved.

Description

Technical Field

[0001] The utility model relates to the field of profile processing equipment, in particular to a milling device of a combined tool holder. Background Art

[0002] In the process of processing plastic profiles, milling is required to open holes. According to the material and shape of the plastic, choose the appropriate milling tool to ensure the quality and efficiency of the hole opening. During processing, it is necessary to pay attention to controlling the speed and feed rate of the tool to ensure the accuracy of the hole opening position and achieve efficient, accurate and stable processing results.

[0003] A Chinese patent (publication number: CN210208807U) discloses a plastic profile milling machine with a tool adjustment device. The frame is provided with a tool adjustment assembly that can adjust the inclination angle of the telescopic cylinder. When working, the window frame is placed on the workbench, the clamping assembly is opened for clamping, and the inclination angle of the telescopic cylinder and the bevel knife group is adjusted by the tool adjustment assembly. Then the drive cylinder is opened to bring the workbench together with the door and window frame close to the horizontal knife group, the vertical knife group and the bevel knife group, and milling is performed from three different directions respectively. The bevel knife group can cope with complex cutting conditions and adjust the angle, thereby improving the milling accuracy. However, it is suitable for profiles that have been cut and assembled, and the profile is short in the axial direction, which is convenient for positioning. For milling the functional holes of the entire profile that has not been cut in advance, the scattered arrangement of the tools requires multiple positioning, and the workpiece needs to be pulled and adjusted when processing the functional holes at different positions, which is easy to cause error accumulation, resulting in a large deviation in the relative position between multiple functional holes on the same segment, affecting the installation of hardware and positioning screws on the switched segments. Utility Model Content

[0004] The purpose of the utility model is to provide a milling device with a combined tool holder in view of the defects in the prior art. By configuring a double tool holder, each of which carries a plurality of milling heads, which are arranged in a surrounding manner from the ring of the profile conveying path, the plurality of milling heads can work separately to complete the processing of functional holes on the profile. At the same time, the milling heads share a common tool holder to unify the positioning reference, reduce error accumulation, and thus improve processing accuracy.

[0005] In order to achieve the above purpose, the following technical solutions are adopted:

[0006] A milling device of a combined tool holder, comprising:

[0007] A tool holder, comprising a horizontal limb and a vertical limb butted at the ends, a tool holder is provided on each side of the profile conveying path, and the profile conveying path is located between the horizontal limbs of the tool holders on different sides and between the horizontal limbs of the tool holders on different sides;

[0008] A milling machine head is provided, wherein the milling machine heads are slidably connected to the horizontal limbs and the vertical limbs of the tool holder, respectively, and the milling machine heads are connected to the tool holder through a telescopic mechanism, and the milling heads of the milling machine heads face the profile conveying path;

[0009] The positioning component is provided with a three-axis motion mechanism, the output end of which is connected to the tool holder, and is used to drive the tool holder and the milling head to adjust their positions relative to the profile conveying path.

[0010] Furthermore, the horizontal limbs and vertical limbs of the tool holder are connected to form an L-shape, the concave side of the L-shaped structure faces the profile conveying path, and a working channel for the profile to pass through is formed between the two tool holders located on both sides of the profile conveying path.

[0011] Furthermore, along the direction of the profile conveying path, support frames are respectively provided upstream and downstream of the working channel, and guide grooves for placing the profiles are provided on the support frames.

[0012] Furthermore, the milling head includes a first milling head installed on the horizontal limb and a second milling head installed on the vertical limb. The milling head axis corresponding to the first milling head is distributed vertically, and the milling head axis corresponding to the second milling head is distributed horizontally.

[0013] Furthermore, the milling head also includes a third milling head installed on the tool holder, and the milling head axis corresponding to the third milling head is inclined relative to the horizontal plane and faces the edge of the profile.

[0014] Furthermore, the milling heads on all tool holders are arranged in sequence and at intervals around the profile conveying path.

[0015] Furthermore, the main body of the telescopic mechanism is fixed to the tool holder, the output portion of the telescopic mechanism is connected to the milling head, and the moving path of the output portion of the telescopic mechanism is parallel to the sliding path of the milling head relative to the tool holder.

[0016] Furthermore, the three-axis motion mechanism includes three groups of translation units connected in sequence, corresponding to the translations in the X, Y and Z directions respectively, wherein the translation in the X direction is parallel to the direction of the profile conveying path, the translation in the Y direction is parallel to the distribution direction of the horizontal limbs, and the translation in the Z direction is parallel to the distribution direction of the vertical limbs.

[0017] Furthermore, the translation unit includes a slide rail, a slider, a carrier plate and a screw nut mechanism. The carrier plate slides with the slide rail through the slider. The carrier plate is connected to the guide rail or tool holder of other translation units. The screw nut mechanism connects the carrier plate to drive the carrier plate to translate along the slide rail.

[0018] Furthermore, the screw-nut mechanism includes a screw and a nut that matches the screw, the nut is rotatably connected to the carrier plate through a support, and one end of the screw is connected to the translational driving element.

[0019] Compared with the prior art, the utility model has the following advantages and positive effects:

[0020] (1) In order to solve the problem of error accumulation caused by positioning and processing multiple functional holes in the same section of the entire profile from multiple positions, a double tool holder is configured to carry multiple milling heads respectively, which are arranged in a circle from the profile conveying path. The multiple milling heads can work separately to complete the processing of the functional holes on the profile. At the same time, the shared tool holder of the milling heads can unify the positioning reference, reduce error accumulation, and thus improve the processing accuracy.

[0021] (2) An L-shaped tool holder is used to adapt to the side walls of the profile in the up and down directions and the front and back directions. A milling head corresponding to the side wall is configured to facilitate the corresponding processing of functional holes on different side walls. The milling mechanism with an inclined axis can adapt to the processing of water tanks distributed at the edge position and meet the processing needs of various functional holes on the profile.

[0022] (3) A corresponding three-axis moving mechanism is configured for each L-shaped tool holder to drive the tool holder to adjust in the three-axis direction to meet the position requirements of each milling head carried on the tool holder during processing. Combined with the feed mechanism configured for the milling mechanism, precise processing of the functional holes can be achieved, thereby improving the processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0024] Figure 1 It is a schematic diagram of a milling device of a combined tool holder in an embodiment of the utility model.

[0025] Figure 2 It is a side view schematic diagram of the milling device of the combined tool holder in the embodiment of the utility model.

[0026] Figure 3 It is a schematic diagram of the three-axis motion mechanism of the milling device of the combined tool holder in the embodiment of the utility model.

[0027] Figure 4 It is a schematic diagram of the relative positions of the milling device of the combined tool holder and the profile in the embodiment of the utility model.

[0028] In the figure, 1. tool holder, 2. horizontal limb, 3. vertical limb, 4. profile conveying path, 5. profile, 6. milling head, 7. first milling head, 8. second milling head, 9. third milling head, 10. three-axis motion mechanism, 11. support frame, 12. X-axis translation unit, 13. Y-axis translation unit, 14. Z-axis translation unit, 15. carrier plate, 16. screw nut mechanism, 17. telescopic mechanism. DETAILED DESCRIPTION

[0029] In a typical implementation of the present invention, Figure 1-Figure 4 As shown, a milling device with a combined tool holder is proposed.

[0030] At present, a single milling head is arranged in sequence along the conveying direction of the profile 5, and milling is performed from multiple positions to obtain functional holes, which leads to low processing efficiency. At the same time, using multiple heads to work separately, there is a problem of inconsistent processing datums, resulting in error accumulation. Based on this, this embodiment provides a milling device with a combined tool holder, which realizes a unified positioning datum by sharing a tool holder 1, effectively reduces error accumulation, and improves processing accuracy.

[0031] See also Figure 1 The milling device of the combined tool holder includes a tool holder 1, a milling head 6 and a positioning component. Tool holders 1 are respectively provided on both sides of the profile conveying path 4. The two tool holders 1 are arranged opposite to each other, and the profile conveying path 4 is located between the two oppositely arranged tool holders 1. Multiple milling heads 6 are respectively installed on the tool holders 1. The milling heads 6 on the tool holder 1 can respectively perform milling processing on the profiles 5 on the groove conveying path, and form functional holes on the profiles 5 to serve as drainage grooves, hardware installation holes, etc. The positioning component can drive the tool holder 1 and the milling head 6 thereon to move, so as to adjust the position of the tool holder 1 and the milling head 6, so that the milling head at the end of the milling head 6 changes its relative position with the profile 5, which is convenient for precise processing of the profile 5.

[0032] like Figure 2 The tool holder 1 is L-shaped, and each tool holder 1 includes a horizontal limb 2 and a vertical limb 3. The two tool holders 1 are respectively arranged on both sides of the profile conveying path 4. Figure 2 Taking the position shown in as an example, one tool holder 1 is located at the upper left of the profile conveying path 4, and the other tool holder 1 is located at the lower right of the profile conveying path 4. In addition, a working channel for the profile 5 to pass through is formed between the two oppositely arranged tool holders 1, and the profile conveying path 4 passes through this working channel.

[0033] The profile conveying path 4 is located between the horizontal limb 2 of one tool holder 1 and the horizontal limb 2 of another tool holder 1, and between the vertical limb 3 of one tool holder 1 and the vertical limb 3 of another tool holder 1. The horizontal limbs 2 of the two tool holders 1 are arranged in the horizontal direction, and the vertical limbs 3 of the two tool holders 1 are distributed in the vertical direction.

[0034] like Figure 2 As shown, the horizontal limb 2 and the vertical limb 3 of the tool holder 1 are connected to form an L shape, and the concave side of the L-shaped structure faces the profile conveying path 4. A working channel for the profile 5 to pass through is formed between the two tool holders 1 located on both sides of the profile conveying path 4.

[0035] The milling head 6 is slidably connected to the horizontal limb 2 and the vertical limb 3 of the tool holder 1, respectively. The milling head 6 is installed on the tool holder 1 through a sliding pair such as a slide rail and a slider mechanism to guide the milling head 6 during its movement. The milling head 6 can extend the milling head output at the end to the working channel to perform milling processing on the profile 5 in the working channel. The milling head 6 can pull the milling head back into the range of the tool holder 1, thereby avoiding the profile 5 in the working channel in a non-working state, reducing the impact on other milling heads 6 during processing.

[0036] The main body of the telescopic mechanism 17 is fixed to the tool holder 1 , the output portion of the telescopic mechanism 17 is connected to the milling head 6 , and the moving path of the output portion of the telescopic mechanism 17 is parallel to the sliding path of the milling head 6 relative to the tool holder 1 .

[0037] In order to realize the feeding and retraction process of the milling head, the milling head 6 is connected to the tool holder 1 through a telescopic mechanism 17, and the position is adjusted as needed to realize feeding processing and retraction avoidance. The milling head of each milling head 6 is facing the profile conveying path 4 to realize the processing of the profile 5. In this embodiment, the telescopic part can adopt a linear telescopic element such as a cylinder and an electric cylinder to drive the milling head 6 to move relative to the frame to realize feeding milling processing and retraction avoidance of the profile 5. When a cylinder is used, the cylinder body of the cylinder is fixed to the tool holder 1, and the end of the piston rod of the cylinder is connected to the milling head 6 as the cylinder output end to drive the milling head 6 to feed.

[0038] The milling head 6 can be a combination of a servo motor and a milling cutter. The output end of the servo motor is connected to the milling cutter, and the milling cutter is driven to rotate to achieve processing of the profile 5.

[0039] like Figure 2 and Figure 3 As shown, in order to more accurately control the position of the milling head, a positioning assembly is also provided. The positioning assembly includes a three-axis motion mechanism 10, the output end of which is connected to the tool holder 1, which can realize the movement of the tool holder 1 and the milling head in three-dimensional space, thereby accurately adjusting their position relative to the profile conveying path 4.

[0040] like Figure 4 As shown, by installing multiple milling heads on the tool holder 1, the functional holes of the profile 5 are processed in different orientations, and the milling head 6 is driven to work as needed to adapt to the functional hole processing requirements of different profiles 5, thereby greatly improving the processing efficiency.

[0041] Through the precise control of the common tool holder 1 and the positioning assembly, the milling heads 6 installed on the same tool holder 1 achieve a unified positioning reference and precise position adjustment, effectively reducing error accumulation and improving processing accuracy. Since the milling heads 6 can slide on the tool holder 1 and be adjusted through the telescopic mechanism 17, the number and position of the milling heads 6 can be flexibly configured according to different processing requirements.

[0042] In this embodiment, the holes to be processed on the profile 5 may vary according to the application and industry requirements. The through holes are often used as drainage grooves and drainage holes, the blind holes can be used for various fixing and connection requirements, the threaded holes are used to match screws or bolts to achieve connection with other components, and the connection holes or decorative holes can also be opened.

[0043] During the transportation and processing of the profile 5, the profile 5 may shift or shake due to its own weight or processing force, resulting in reduced processing accuracy. In this embodiment, support frames 11 are arranged upstream and downstream of the profile conveying path 4, and guide grooves are arranged on the support frames 11 for positioning and fixing the profile 5. The profile 5 can remain stable during the transportation process, avoiding shifting and shaking, and improving the processing accuracy.

[0044] During the processing of the profile 5, milling operations in different directions need to be performed according to the geometric shape of the profile 5 and the distribution position of the functional holes. In this regard, in this embodiment, the first milling head 76 and the second milling head 86 are respectively installed on the horizontal limb 2 and the vertical limb 3, and the milling head axes in different directions are set to meet the milling requirements in different directions; the milling processing of the profile 5 in multiple directions can be realized, which improves the flexibility and efficiency of the processing.

[0045] The edge of the profile 5 needs to be finely milled to meet the specific geometric shape and the requirements of the functional hole at this position. In this embodiment, a third milling head 96 is installed on the tool holder 1, and the axis of the milling head is arranged to be tilted and distributed toward the edge of the profile 5 to achieve fine milling of the edge. The tilted milling head can achieve fine processing of the edge of the profile 5, thereby improving the processing accuracy and processing quality.

[0046] The milling heads 6 are arranged on the tool holder 1 in sequence and at intervals around the profile conveying path 4, so as to realize milling of multiple positions of the profile 5, thereby improving the processing efficiency and processing accuracy.

[0047] like Figure 3 As shown, during the machining process, it is necessary to perform precise three-dimensional motion control on the milling head 6. In this regard, in this embodiment, a three-axis motion mechanism 10 is adopted, including three groups of translation units connected in sequence, namely an X-axis translation unit 12, a Y-axis translation unit 13 and a Z-axis translation unit 14. The three groups of translation units are used to respectively realize translations in the X-axis, Y-axis and Z-axis directions, so as to realize precise three-dimensional motion control of the milling head 6.

[0048] like Figure 4As shown, the translation unit includes a slide rail, a slider, a carrier plate 15 and a screw nut mechanism 16. The carrier plate 15 slides with the slide rail through the slider. The carrier plate 15 is connected to the guide rail or tool holder 1 of other translation units. The screw nut mechanism 16 is connected to the carrier plate 15 to drive the carrier plate 15 to translate along the slide rail. The slide rail is a guide for movement. The slider cooperates with the slide rail to achieve smooth sliding. The carrier plate 15 is connected to other translation units or the tool holder 1, and the screw nut mechanism 16 provides power to drive the carrier plate 15 to translate along the slide rail, thereby realizing accurate and smooth movement of the translation unit.

[0049] In this embodiment, the carrier plate 15 corresponding to the Z-direction translation unit 14 is connected to the tool holder 1, and three-dimensional motion control of the tool holder 1 and the milling head thereon is achieved through simultaneous or separate actions of the three groups of translation units.

[0050] The lead screw nut mechanism 16 includes a lead screw and a nut that cooperates with the lead screw. The nut is rotatably connected to the carrier plate 15 through a support. One end of the lead screw is connected to a translational drive element. The lead screw nut mechanism 16 cooperates with the lead screw and the nut. When the lead screw rotates, the nut will perform linear motion along the axial direction of the lead screw. The nut is rotatably connected to the carrier plate 15 through a support to ensure that the movement of the nut is smooth and accurate. One end of the lead screw is connected to the translational drive element. The translational drive element can be a servo motor, a stepper motor, etc. By controlling the rotation of the translational drive element, the rotation of the lead screw can be accurately controlled, and then the movement of the carrier plate 15 can be accurately controlled.

[0051] The accurate position and angle of the milling head 6 during the processing are ensured, and the processing accuracy and processing quality are improved. At the same time, due to the stability of the screw nut mechanism 16, the service life of the equipment is also extended.

[0052] A corresponding three-axis moving mechanism is configured for each L-shaped tool holder 1 to drive the tool holder 1 to adjust in three-axis directions to meet the position requirements of each milling head 6 carried on the tool holder 1 during processing. Combined with the feed mechanism configured for the milling mechanism, precise processing of functional holes can be achieved to improve processing accuracy.

[0053] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A milling device with a combined tool holder, characterized in that: include: A tool holder, comprising a horizontal limb and a vertical limb butted at the ends, a tool holder is provided on each side of the profile conveying path, and the profile conveying path is located between the horizontal limbs of the tool holders on different sides and between the horizontal limbs of the tool holders on different sides; A milling machine head is provided, wherein the milling machine heads are slidably connected to the horizontal limbs and the vertical limbs of the tool holder, respectively, and the milling machine heads are connected to the tool holder through a telescopic mechanism, and the milling heads of the milling machine heads face the profile conveying path; The positioning component is provided with a three-axis motion mechanism, the output end of which is connected to the tool holder, and is used to drive the tool holder and the milling head to adjust their positions relative to the profile conveying path.

2. The milling device of the combined tool holder according to claim 1, characterized in that: The horizontal limbs and vertical limbs of the tool holder are connected to form an L shape, the concave side of the L-shaped structure faces the profile conveying path, and a working channel for the profile to pass through is formed between the two tool holders located on both sides of the profile conveying path.

3. The milling device of the combined tool holder according to claim 2, characterized in that: In the direction of the profile conveying path, support frames are respectively provided upstream and downstream of the working channel, and guide grooves for placing the profiles are provided on the support frames.

4. The milling device of the combined tool holder according to claim 1, characterized in that: The milling head comprises a first milling head installed on the horizontal limb and a second milling head installed on the vertical limb. The milling head axis corresponding to the first milling head is distributed vertically, and the milling head axis corresponding to the second milling head is distributed horizontally.

5. The milling device of the combined tool holder according to claim 1 or 4, characterized in that: The milling head also includes a third milling head installed on the tool holder. The milling head axis corresponding to the third milling head is inclined relative to the horizontal plane and faces the edge of the profile.

6. The milling device of the combined tool holder according to claim 5, characterized in that: The milling heads on all tool holders are arranged in sequence and at intervals around the profile conveying path.

7. The milling device of the combined tool holder according to claim 1, characterized in that: The main body of the telescopic mechanism is fixed to the tool holder, the output part of the telescopic mechanism is connected to the milling machine head, and the moving path of the output part of the telescopic mechanism is parallel to the sliding path of the milling machine head relative to the tool holder.

8. The milling device of the combined tool holder according to claim 1, characterized in that: The three-axis motion mechanism includes three groups of translation units connected in sequence, corresponding to the translations in the X, Y and Z directions respectively, wherein the translation in the X direction is parallel to the profile conveying path direction, the translation in the Y direction is parallel to the distribution direction of the horizontal limbs, and the translation in the Z direction is parallel to the distribution direction of the vertical limbs.

9. The milling device of the combined tool holder according to claim 8, characterized in that: The translation unit includes a slide rail, a slider, a carrier plate and a screw nut mechanism. The carrier plate slides with the slide rail through the slider, the carrier plate is connected to the guide rail or tool holder of other translation units, and the screw nut mechanism connects the carrier plate to drive the carrier plate to translate along the slide rail.

10. The milling device of the combined tool holder according to claim 9, characterized in that: The lead screw and nut mechanism comprises a lead screw and a nut matching the lead screw. The nut is rotatably connected to the carrier plate through a support, and one end of the lead screw is connected to a translation driving element.

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