Numerical control automatic contour milling machine

Abstract

The utility model discloses a numerical control automatic contour milling machine, which is used for contour machining of a workpiece to be machined and is characterized by comprising a side mounting frame, a machining component, a bottom fixing table and a clamping mechanism, the machining component is mounted on the side of the side mounting frame, the bottom fixing table is arranged on the lower portion of the machining component, and the clamping mechanism is arranged on the bottom fixing table. The clamping mechanism comprises a corner driving part, a screw rod mounting seat, a screw rod coupling, a first screw rod, a first clamping plate assembly, a second screw rod and a second clamping plate assembly, and a clamping space is formed between the first clamping plate assembly and the second clamping plate assembly; the corner driving piece operates to drive the first lead screw to rotate, so that the clamping space between the first clamping plate assembly and the second clamping plate assembly becomes larger or smaller, and then the to-be-machined workpiece is clamped and positioned. The size of the clamping space is adjusted through cooperation of the first lead screw, the first clamping plate assembly and the second lead screw, then a workpiece is automatically positioned and clamped, the auxiliary time for multiple times of tool setting is saved, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to milling machine technology, in particular to a numerically controlled automatic contour milling machine. Background Art

[0002] At present, in industrial production, it is often necessary to use a milling machine to mill workpieces. The milling machine includes a base, a crossbeam, a mounting beam and a milling cutter assembly, wherein the crossbeam is arranged on the base, the mounting beam is slidably arranged on the crossbeam, and the milling cutter assembly is movably arranged on the mounting beam.

[0003] The patent document with application number "CN202080041532.3" discloses a milling cutter for a milling machine, which comprises a box for fixing the tip, a main body forming a tool seat for inserting the box, and a fixing part for fixing the box, wherein the main body has a fixing part insertion hole adjacent to the inner side of the tool seat in the radial direction and a partition wall between the tool seat and the fixing part insertion hole, the fixing part inserted into the fixing part insertion hole causes the radial outward force to spread to the partition wall, the tool seat is formed in a manner to generate a reaction force that counteracts the radial outward force acting on the box through the partition wall, and the box is fixed to the tool seat based on the radial outward force.

[0004] The patent document with application number "CN201810553014.4" discloses a milling machine. The milling machine includes a machine base, a driving assembly and a milling assembly. The machine base includes a base, two crossbeams and a mounting beam. The two crossbeams are arranged on the base at intervals. The driving assembly includes a mounting block, a lifting cylinder, a sliding block and a driving member. The mounting beam is provided with a plurality of mounting grooves. The milling assembly includes a main shaft and a milling cutter connected to the main shaft, and the main shaft is connected to the driving member. A closing assembly is also provided on the base. The closing assembly is located between the two crossbeams. The closing assembly includes a closing cylinder and a sealing ring arranged on the periphery of the closing cylinder. A closing cavity is formed in the closing cylinder, and a milling cutter groove is provided at the bottom of the closing cavity. The milling cutter of the milling machine can be installed in place and the milling process is relatively simple.

[0005] The above patent document, combined with the prior art, reveals that the existing CNC automatic contour milling machine has the following defects:

[0006] 1. In current CNC machining, the position of each loading will deviate, which results in the need to calibrate the tool before each machining, which is time-consuming and labor-intensive.

[0007] 2. The machine tool spindle design adopts a mechanical spindle solution. Due to the existence of an intermediate transmission structure in the step-by-step speed regulation, the output speed accuracy and stability are relatively poor. Summary of the invention

[0008] In order to overcome the deficiencies of the prior art, the utility model provides a numerically controlled automatic contour milling machine, which solves the problem that the position of feeding may deviate.

[0009] The first aspect of the utility model is to provide a numerically controlled automatic contour milling machine, which is used for contour processing of a workpiece to be processed, and is characterized in that it includes a side mounting frame, a machining component, a bottom fixed platform, and a clamping mechanism. The machining component is installed on the side of the side mounting frame, and the bottom fixed platform is arranged at the bottom of the machining component. The clamping mechanism includes a corner driving member, a screw rod mounting seat, a screw rod coupling, a first screw rod, a first clamping plate assembly, a second screw rod, and a second clamping plate assembly. The corner driving member is fixed to the bottom fixed platform and drives the first screw rod to rotate. The end of the first screw rod The end of the second screw rod is connected and fixed with the screw coupling, the first screw rod is rotatably installed on the screw rod mounting seat, the rotation direction of the first screw rod is opposite to that of the second screw rod, the first screw rod is screwed to the first clamping plate assembly, the second screw rod is screwed to the second clamping plate assembly, and a clamping space is formed between the first clamping plate assembly and the second clamping plate assembly; the operation of the corner drive component drives the first screw rod, the screw coupling, and the second screw rod to rotate, so that the clamping space between the first clamping plate assembly and the second clamping plate assembly becomes larger or smaller, thereby clamping and positioning the workpiece to be processed.

[0010] In the first aspect of the utility model, as a preferred embodiment, a placement groove is provided on the bottom fixing platform, and an end positioning stop iron is provided along the inner side of the placement groove, and the end positioning stop iron is located between the first clamping plate assembly and the second clamping plate assembly.

[0011] In the first aspect of the utility model, as a preferred embodiment, a middle placement plate is arranged in the placement groove.

[0012] In the first aspect of the utility model, as a preferred embodiment, a first slide rail is provided at the lower portion of the first clamping plate assembly, and the lower portion of the first clamping plate assembly is slidably mounted on the first slide rail.

[0013] In the first aspect of the utility model, as a preferred embodiment, a second slide rail is provided at the lower portion of the second clamping plate assembly, and the lower portion of the second clamping plate assembly is slidably mounted on the second slide rail.

[0014] In the first aspect of the utility model, as a preferred embodiment, the second clamping plate assembly includes a first clamping plate and a second clamping plate, and the end of the first clamping plate is fixed to the second clamping plate by screws.

[0015] In the first aspect of the utility model, as a preferred embodiment, the extension direction of the first clamping plate assembly is parallel to the extension direction of the second clamping plate assembly.

[0016] In the first aspect of the utility model, as a preferred embodiment, the extension direction of the first clamping plate assembly is perpendicular to the extension direction of the first screw rod.

[0017] In the first aspect of the utility model, as a preferred embodiment, the machining assembly includes an upper driving member, a transmission belt, a second pulley, a spindle assembly, and a tool. A first pulley is provided at the lower portion of the upper driving member, the first pulley and the second pulley are connected by the transmission belt, the second pulley is fixed to the spindle assembly, and a tool is provided at the lower portion of the spindle assembly.

[0018] In the first aspect of the utility model, as a preferred embodiment, the number of the screw rod mounting seats is 2, one of which is arranged at the lower part of the first screw rod, and the other screw rod mounting seat is arranged at the lower part of the second screw rod.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] The rotation direction of the first screw is opposite to that of the second screw. The first screw is screwed to the first clamping plate assembly, and the second screw is screwed to the second clamping plate assembly, so that a clamping space is formed between the first clamping plate assembly and the second clamping plate assembly. The corner drive member drives the first screw, the screw coupling, and the second screw to rotate, so that the clamping space between the first clamping plate assembly and the second clamping plate assembly becomes larger or smaller, thereby clamping and positioning the workpiece to be processed. The corner drive member, the screw mounting seat, the screw coupling, the first screw, the first clamping plate assembly, and the second screw are used to adjust the size of the clamping space, thereby automatically positioning and clamping the workpiece, saving the auxiliary time of multiple tool setting and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional diagram of the utility model;

[0022] Figure 2 Another perspective view of the present utility model;

[0023] Figure 3 It is another three-dimensional diagram of the utility model;

[0024] Figure 4 It is another three-dimensional diagram of the utility model;

[0025] Figure 5 It is a partial stereogram of the utility model;

[0026] Figure 6 Another partial stereogram of the utility model;

[0027] Figure 7 It is another partial stereogram of the utility model;

[0028] Figure 8 It is another partial stereogram in the utility model;

[0029] Fig. 9 This is a structural diagram of the clamping mechanism.

[0030] In the figure: 10, side mounting frame; 20, machining assembly; 21, upper driving member; 211, first pulley; 22, transmission belt; 23, second pulley; 24, spindle assembly; 25, tool; 30, bottom fixing table; 31, placement slot; 32, middle placement plate; 33, end positioning stop iron; 200, clamping mechanism; 40, corner driving member; 50, screw mounting seat; 60, screw coupling; 70, first screw; 71, first clamping plate assembly; 72, first slide rail; 80, second screw; 81, second clamping plate assembly; 801, first clamping plate; 802, second clamping plate; 82, second slide rail; 300, workpiece to be processed. DETAILED DESCRIPTION

[0031] Below, in conjunction with the accompanying drawings and specific embodiments, the utility model is further described. It should be noted that, under the premise of no conflict, the various embodiments described below or the various technical features can be arbitrarily combined to form a new embodiment. Except for special instructions, the materials and equipment used in this embodiment can be purchased from the market. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0032] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In the description of the present application, "plurality" means two or more, unless otherwise precisely and specifically specified.

[0033] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be connected through an intermediary medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0034] The terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0035] like Figure 1-9 As shown, a CNC automatic contour milling machine is used for contour processing of a workpiece 300 to be processed, characterized in that it includes a side mounting frame 10, a machining component 20, a bottom fixed platform 30, and a clamping mechanism 200. The machining component 20 is installed on the side of the side mounting frame 10, and the bottom fixed platform 30 is arranged at the lower part of the machining component 20. The clamping mechanism 200 includes a corner driving member 40, a screw mounting seat 50, a screw coupling 60, a first screw 70, a first clamping plate assembly 71, a second screw 80, and a second clamping plate assembly 81. The corner driving member 40 is fixed to the bottom fixed platform 30 and drives the first screw 70 to rotate. The end of the first screw 70 is in contact with the The end of the second screw 80 is connected and fixed by the screw coupling 60, the first screw 70 is rotatably mounted on the screw mounting seat 50, the first screw 70 has a rotation direction opposite to that of the second screw 80, the first screw 70 is screwed to the first clamping plate assembly 71, the second screw 80 is screwed to the second clamping plate assembly 81, and a clamping space is formed between the first clamping plate assembly 71 and the second clamping plate assembly 81; the corner drive 40 drives the first screw 70, the screw coupling 60, and the second screw 80 to rotate, so that the clamping space between the first clamping plate assembly 71 and the second clamping plate assembly 81 becomes larger or smaller, thereby clamping and positioning the workpiece 300 to be processed. The size of the clamping space is adjusted by the cooperation of the corner drive 40, the screw mounting seat 50, the screw coupling 60, the first screw 70, the first clamping plate assembly 71, and the second screw 80, thereby automatically positioning and clamping the workpiece, saving the auxiliary time of multiple tool setting and improving production efficiency.

[0036] In the first aspect of the utility model, as a preferred embodiment, a placement groove 31 is provided on the bottom fixing platform 30, and an end positioning stop iron 33 is provided along the inner side of the placement groove 31, and the end positioning stop iron 33 is located between the first clamping plate assembly 71 and the second clamping plate assembly 81.

[0037] Specifically, it should be noted that the end positioning iron 33 is used to limit the X direction, and the two clamping plate assemblies are used to limit the Y direction. After the x-axis is positioned after each loading, the ball screw and the screw nut are clamped together by automatic centering, and the two clamping plate assemblies are used to achieve the y-axis positioning and fixation of the material, thereby ensuring the consistency of the loading position each time within the accuracy requirements, eliminating the need for repeated tool setting operations.

[0038] In the first aspect of the utility model, as a preferred embodiment, the machining assembly 20 includes an upper driving member 21, a transmission belt 22, a second pulley 23, a spindle assembly 24, and a tool 25. A first pulley 211 is provided at the lower portion of the upper driving member 21. The first pulley 211 and the second pulley 23 are connected by the transmission belt 22. The second pulley 23 is fixed to the spindle assembly 24. A tool 25 is provided at the lower portion of the spindle assembly 24. Improvement of precision and stability under the traditional low-cost mechanical spindle solution.

[0039] In the first aspect of the utility model, as a preferred embodiment, a middle placement plate 32 is provided in the placement groove 31. A first slide rail 72 is provided at the lower part of the first clamping plate assembly 71, and the lower part of the first clamping plate assembly 71 is slidably mounted on the first slide rail 72. A second slide rail 82 is provided at the lower part of the second clamping plate assembly 81, and the lower part of the second clamping plate assembly 81 is slidably mounted on the second slide rail 82, further improving the stability of clamping.

[0040] In the first aspect of the utility model, as a preferred embodiment, the second clamping plate assembly 81 includes a first clamping plate 801 and a second clamping plate 802, and the end of the first clamping plate 801 is fixed to the second clamping plate 802 by screws. The extension direction of the first clamping plate assembly 71 is parallel to the extension direction of the second clamping plate assembly 81. The extension direction of the first clamping plate assembly 71 is perpendicular to the extension direction of the first screw rod 70, and positioning is performed in two directions, with high positioning accuracy.

[0041] In the first aspect of the utility model, as a preferred embodiment, the number of the screw mounting seats 50 is 2, one of the screw mounting seats 50 is arranged at the lower part of the first screw 70, and the other screw mounting seat 50 is arranged at the lower part of the second screw 80, thereby improving the stability of the structure.

[0042] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A CNC automatic contour milling machine, used for contour processing of a workpiece to be processed, characterized in that: Includes side mounting frame, machined components, bottom fixing table, clamping mechanism, The machining component is installed on the side of the side mounting frame, and the bottom fixed platform is arranged at the lower part of the machining component. The clamping mechanism comprises a corner driving member, a screw mounting seat, a screw coupling, a first screw, a first clamping plate assembly, a second screw, and a second clamping plate assembly. The corner driving member is fixed to the bottom fixed platform and drives the first screw to rotate, and the end of the first screw and the end of the second screw are connected and fixed by the screw coupling. The first screw is rotatably installed on the screw mounting seat, and the rotation direction of the first screw is opposite to that of the second screw. The first screw is screwed to the first clamping plate assembly, and the second screw is screwed to the second clamping plate assembly. A clamping space is formed between the first clamping plate assembly and the second clamping plate assembly; The operation of the corner drive component drives the first screw, the screw coupling, and the second screw to rotate, so that the clamping space between the first clamping plate assembly and the second clamping plate assembly becomes larger or smaller, thereby clamping and positioning the workpiece to be processed.

2. The CNC automatic contour milling machine according to claim 1, characterized in that: The bottom fixing platform is provided with a placement groove, and the placement groove is provided with an end positioning stop iron along the inner side, and the end positioning stop iron is located between the first clamping plate assembly and the second clamping plate assembly.

3. The CNC automatic contour milling machine according to claim 2, characterized in that: A middle placement plate is arranged in the placement groove.

4. The CNC automatic contour milling machine according to claim 1, characterized in that: A first slide rail is disposed at the lower portion of the first clamping plate assembly, and the lower portion of the first clamping plate assembly is slidably mounted on the first slide rail.

5. The CNC automatic contour milling machine according to claim 1, characterized in that: A second slide rail is disposed at the lower portion of the second clamping plate assembly, and the lower portion of the second clamping plate assembly is slidably mounted on the second slide rail.

6. The CNC automatic contour milling machine according to claim 1, characterized in that: The second clamping plate assembly includes a first clamping plate and a second clamping plate, and the end of the first clamping plate is fixed to the second clamping plate by screws.

7. The CNC automatic contour milling machine according to claim 1, characterized in that: An extension direction of the first clamping plate assembly is parallel to an extension direction of the second clamping plate assembly.

8. The CNC automatic contour milling machine according to claim 7, characterized in that: An extending direction of the first clamping plate assembly is perpendicular to an extending direction of the first screw rod.

9. The CNC automatic contour milling machine according to claim 1, characterized in that: The machining assembly includes an upper driving member, a transmission belt, a second pulley, a spindle assembly, and a tool. A first pulley is provided at the lower portion of the upper driving member. The first pulley and the second pulley are connected by the transmission belt. The second pulley is fixed to the spindle assembly. A tool is provided at the lower portion of the spindle assembly.

10. The CNC automatic contour milling machine according to claim 1, characterized in that: The number of the screw rod mounting seats is two, one of which is arranged at the lower part of the first screw rod, and the other screw rod mounting seat is arranged at the lower part of the second screw rod.

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