TWM504653U - Miniaturized large stroke CNC milling machine - Google Patents

Description

Miniaturized large stroke CNC engraving and milling machine

This creation is related to the technology of a CNC engraving and milling machine, especially a gantry CNC milling machine, which is composed of an X-axis mechanism, a Y-axis mechanism and a Z-axis mechanism. The X-axis mechanism has a larger The effective stroke can reach the CNC engraving and milling machine with high precision, high rigidity and small size and large stroke with X-axis mechanism.

At present, regarding the moving column gantry or (fixed column gantry) CNC CNC milling machine, the X-axis mechanism design, the X-axis beam is the front type, the line rail is arranged on the front side of the X-axis beam, and the upper and lower sides are arranged in a horizontal parallel direction, the ball screw The front is also the same, and it is impossible to deepen the deepening of its X-axis structure.

Conventional mechanisms are used on larger machines, and free weights will have a relative preload, and the lack of cutting rigidity is less significant. Conventional mechanisms are used for small machines, which are not suitable for use because of their small size and light weight.

The main foundation of the moving column gantry type CNC is stacked on the Y-axis. The Y-axis mechanism is driven by round bars and line rails. The line rails are arranged in a forward or horizontal direction, and there is almost no precision and rigidity. The round bar straight track is subjected to the stacking weight from the X-axis and Z-axis mechanisms, the mechanism deformation and precision displacement in static state; the dynamic cutting feed is limited System, the department is not professional mainstream, the flutter of the machine often causes the tool to be damaged, and the noise is self-evident. In particular, due to the narrow organization, the parts are not easy to arrange, and the commercial considerations have generally been copied and plagiarized. The long-term lead to small machines can not replace a seat, and the processing efficiency and precision of steel are very regrettable. The flutter of the machine often makes the surface of the workpiece rough, so that the tool is damaged, and the noise is self-evident.

Therefore, how to create a wrap-around wraparound, with a Y-axis rail set large span device set in the opposite direction, and a plurality of Y-axis rails in the center of the two-sided column and the X-shaped saddle body The group is supported by the horizontal direction and a plurality of X-axis upper slides. The structure has a certain strength, not only easy to cut steel, but also the rapid feed can reach more than 24000mm/min, which can be held not only statically or dynamically. The conditions of steel and high precision will be the active disclosure of this creation.

The purpose of this creation is to provide a CNC engraving and milling machine with small size and large stroke, mainly for X-axis, Y-axis, Z-axis three-axis positioning accuracy, repeating precision, XY/YZ/XZ verticality and other precision up to u level. After long-term real machine testing, the original accuracy can still be maintained.

The purpose of this creation is to provide a CNC engraving and milling machine with a small size and large stroke, mainly for providing a small-sized machine with flexibility, miniaturization and large stroke, and three-axis, four-axis and five-axis specifications. . For the production of very small and high-precision components, or large-area milling, drilling holes, etc. have a fairly accurate performance, comparable to large machinery.

The purpose of this creation is to provide a CNC engraving and milling with a small size and large stroke. The machine has a floating cutter head, with the superior rubber floating ring as the main component. When the knife is used, the cutter bar and the cutter disc impact, and the upper and lower cutterhead have the characteristics of buffering.

In order to achieve the above objectives, the present invention provides a miniaturized and large-stroke CNC engraving and milling machine, which is applied to a gantry CNC milling machine, which is a combination of an X-axis mechanism, a Y-axis mechanism and a Z-axis mechanism, wherein The X-axis mechanism includes: an X-axis beam rear-type body, two X-axis rails, a U-shaped X-axis saddle body, a plurality of X-axis upper sliders, and an X-axis lower slider. The X-axis rails are respectively disposed on the upper and lower sides of the X-axis beam rear-mounted body; the ㄈ-shaped X-axis saddle body is disposed on the front side of the X-axis beam rear-mounted body, and is connected to the Z-axis mechanism. The X-axis upper slider is assembled on the upper side of the X-shaped X-axis saddle body; the X-axis lower slider is assembled on the lower side of the ㄈ-shaped X-axis saddle body; the complex X-axis upper slider and the X-axis slide The block is integrated with the X-axis rails on the upper and lower sides of the X-axis beam rear-type body, the plurality of X-axis upper sliders cover the range beyond the main effective stroke of the X-axis rail, and the X-axis lower slider covers only the X-axis rail One-third of the range of travel. The Y-axis mechanism comprises a bottom plate base assembly, two side uprights, a plurality of Y-axis rail sets, a central support steel plate and a transmission adapter, and a ball screw is arranged on the transmission adapter. A set of Y-axis rail sets are arranged above the central support steel plate in the opposite direction, and the left and right sides of the central support steel plate are combined with the two side uprights, under high precision conditions, and in the center of the two side uprights and the X-shaped saddle body of the X-axis saddle body Set the Y-axis transverse rail group support, and the machine is stable.

In a preferred embodiment, a supporting rear steel plate is further coupled to the rear side of the X-axis beam rear-mounted body, and a transmission adapter is disposed at the center. A ball screw is arranged in the center of the X-axis rail, and the ball screw is inserted into the transmission from the rear. On the seat.

In a preferred embodiment, a floating cutter head is further included. The floating cutter head has a steering mechanism, a center rotor, a superior rubber floating ring, and a plurality of tool holders.

In a preferred embodiment, the X-axis mechanism, the Y-axis mechanism, and the Z-axis mechanism. The X-axis and the Y-axis are assembled from a 45-55-line rail, a Z-axis 45-level rail, and a three-axis C3-diameter 25-ball lead screw, and are precision-adjusted.

1‧‧‧Small CNC travel engraving machine

11‧‧‧X axial mechanism

111‧‧‧X-axis beam rear body

112‧‧‧X axis rail

113‧‧‧ㄈ X-axis saddle body

114‧‧‧X-axis upper slider

115‧‧‧X-axis lower slider

116‧‧‧Supported steel plate

1161‧‧‧Transmission adapter

12‧‧‧Y axial mechanism

121‧‧‧Bottom base assembly

122‧‧‧ column

123‧‧‧Y axis rail group

124‧‧‧Central support plate

125‧‧‧Transmission adapter

126‧‧‧Rolling screw

13‧‧‧Z axial mechanism

131‧‧‧Z-axis saddle track group

14‧‧‧Floating cutterhead

141‧‧ ‧ steering mechanism

142‧‧‧Center rotor

143‧‧‧Excellent rubber floating ring

144‧‧‧Tool holder

Fig. 1 is a perspective structural view of a preferred embodiment of a CNC engraving and milling machine for miniaturizing a large stroke.

Fig. 2 is a front elevational view showing a preferred embodiment of the X-axis mechanism of the CNC engraving and milling machine for miniaturizing a large stroke.

Fig. 3 is a side elevational view of a preferred embodiment of the X-axis mechanism of the CNC engraving and milling machine for miniaturizing large strokes.

Fig. 4 is a perspective structural view showing a preferred embodiment of the Y-axis mechanism of the CNC engraving and milling machine for miniaturizing a large stroke.

Fig. 5 is an exploded perspective view showing a preferred embodiment of a floating cutter head of a CNC engraving and milling machine for miniaturizing a large stroke.

Fig. 6 is a perspective assembled view of a preferred embodiment of a floating cutter head of a CNC engraving and milling machine for miniaturizing a large stroke.

Figure 7 is a floating type of CNC engraving and milling machine for miniaturization and large stroke. A side view of a preferred embodiment of the cutterhead.

The embodiments of the present invention are described below by way of specific embodiments, and those skilled in the art can readily appreciate other advantages and effects of the present invention from the disclosure herein.

The embodiments of the present invention are described below with reference to the drawings. It should be noted that the following drawings are simplified schematic diagrams, and only the basic concept of the creation is illustrated in a schematic manner, and only the structure related to the creation is illustrated in the drawings. Rather than drawing according to the number, shape and size of the components in actual implementation, the types, quantities and proportions of the components in actual implementation are not limited to the illustrations, and can be changed according to the actual design requirements.

Referring to FIG. 1 , FIG. 2 and FIG. 3 , a perspective view of a preferred embodiment of a CNC engraving and milling machine for miniaturizing a large stroke, a side view of a preferred embodiment of the X-axis mechanism, and an X-axis. A side view of a preferred embodiment of the mechanism. As shown in the figure, the CNC engraving and milling machine 1 of the miniaturization and large stroke of the present invention is applied to a gantry CNC milling machine, which is a combination of an X-axis mechanism 11, a Y-axis mechanism 12 and a Z-axis mechanism 13. The X-axis mechanism 11 includes an X-axis beam rear-type body 111, two X-axis rails 112, a U-shaped X-axis saddle body 113, a plurality of X-axis upper sliders 114, and an X-axis lower slider 115.

The two X-axis rails 112 are respectively disposed on the upper and lower sides of the X-axis beam rear-mounted body 111 (as shown in FIG. 3), and the U-shaped X-axis saddle body 113 is disposed on the front side of the X-axis beam rear-mounted body 111, and is connected. Z-axis mechanism 13; complex X-axis upper slider 114 assembly On the upper side in the U-shaped saddle body 113; the X-axis lower slider 115 is assembled on the lower side of the U-shaped saddle body 113; the plurality of X-axis upper sliders 114 and one X-axis lower slider 115 The X-axis rail 112 is integrated with the upper and lower X-axis rails 112 of the X-axis beam rear-mounted body 111, and the plurality of X-axis upper sliders 114 cover the range beyond the main effective stroke of the X-axis rail 112 (as shown in FIGS. 1 and 2). The X-axis lower slider 115 covers only one-third of the stroke range of the X-axis rail 112 (as shown in FIG. 2).

In this embodiment, a supporting rear steel plate 116 is further coupled to the rear side of the X-axis beam rear-mounted body 111, and a transmission adapter 1161 (shown in FIG. 3) is disposed at the center, and the X-axis rail 112 is disposed. A ball screw 1121 is mounted in the center of the center, and the ball screw 1121 is placed on the transmission adapter 1161 from the rear.

Please refer to FIG. 4 again, which is a perspective structural view of a preferred embodiment of the Y-axis mechanism of the CNC engraving and milling machine for miniaturizing large strokes. As shown, the Y-axis mechanism 12 of the present invention includes a floor frame assembly 121 (see FIG. 1), two side columns 122, a plurality of Y-axis rail sets 123, a central support plate 124, and a transmission adapter 125. . A ball screw 126 is provided on the transmission adapter 125.

With the above structure, the miniaturized and large-stroke CNC engraving and milling machine of the present invention has an overall structure forming a serpentine wrap around, and is equipped with a Y-axis rail group 123 anti-radial type large span device, and the left and right side columns 122 are relayed. The point is set to the left and right side support of the plurality of Y-axis rail groups 123, and the plurality of X-axis upper sliders 114, the structure has a certain strength, in addition to easy cutting of steel, the rapid feed can reach more than 24000 mm/min, not only static or Dynamic can hold high steel, high precision conditions, complex X-axis upper slider 114, complex Y The axis track set 123 effectively withstands any load acting in all directions, such as radial, reverse radial and lateral. High-efficiency cutting, more effective suppression of machine shake, ensure mechanical accuracy and tool life. In addition, the built-in spindle is easy to operate, and it can produce large and high-precision components, and can also be used for large-area milling and drilling of fine holes.

Please refer to FIG. 5, FIG. 6 and FIG. 7 for a perspective exploded view, a perspective assembled view and a side view of a preferred embodiment of a floating cutter head of a CNC engraving and milling machine for miniaturization and large stroke. As shown in the figure, the CNC engraving and milling machine 1 (see FIG. 1) of the miniaturized large stroke of the present invention further includes a floating cutter head 14 having a steering mechanism 141, a center rotor 142, and a The superior rubber floating ring 143 and the plurality of tool holders 144.

By the arrangement of the floating cutter head 14, the impact of the cutter bar and the cutter disc during the cutter can be prevented. The material of the vibrating float ring 143 has a cushioning characteristic, and the impact force is absorbed by the opposite direction of the cutter (as shown in FIG. 7). The broach can also achieve the cushioning effect. The floating cutter head 14 has a simple principle and a simple structure, and the superior rubber floating ring 143 can achieve a non-impacting tool change action, so that the pull tool does not need to be programmed, and the tool change is more convenient.

The floating cutter head 14 can prevent the impact of the cutter rod and the cutter head during the cutter, so that the spindle bearing steel ball can be prevented from being damaged and the tool magazine can affect the long-term service life due to frequent shaking. Moreover, the superior rubber floating ring 143 is placed in the center rotor 142 and disposed in the center of the floating cutter head 14. The cutters are driven by the drive shaft to connect the driven steering mechanism to the axis of the center rotor 12, so that the intermittent cutter head 14 can be reversed and reversed to achieve the tool number positioning, which can also make the tool change more convenient.

Compared with the prior art, the CNC engraving and milling machine of the miniaturization and large stroke of the creation mainly adopts the X-axis beam rear type body combined with the U-shaped X-axis saddle body and the supporting steel plate to achieve four-sided wrapping, the structural design Absolute improvement for X-axis cutting, steel, and stability. The slider on the X-axis has a plurality of sliders, and the slider on the X-axis covers a range beyond the main effective stroke of the X-axis rail to strengthen the rigidity between the slider on the X-axis and the X-axis rail. And the X-axis lower slider singular only covers one-third of the X-axis rail travel range, so it can have a large effective stroke.俾 It can achieve the high precision, high rigidity and small size of the X-axis mechanism.

While the foregoing description and drawings have disclosed the preferred embodiments of the present invention, it is to be understood that various modifications, various modifications and substitutions may be used in the preferred embodiments of the present invention without departing from the scope of the appended claims. The spirit and scope of this creative principle. It will be appreciated by those skilled in the art that the present invention can be modified in many forms, structures, arrangements, ratios, materials, components and components. Therefore, the embodiments disclosed herein are to be considered as illustrative of the present invention and are not intended to limit the present invention. The scope of this creation is defined by the scope of the appended patent application and covers its legal equivalents and is not limited to the foregoing description.

1‧‧‧Small CNC travel engraving machine

11‧‧‧X axial mechanism

111‧‧‧X-axis beam rear body

112‧‧‧X axis rail

113‧‧‧ㄈ X-axis saddle body

114‧‧‧X-axis upper slider

115‧‧‧X-axis lower slider

116‧‧‧Supported steel plate

12‧‧‧Y axial mechanism

121‧‧‧Bottom base assembly

123‧‧‧Y axis rail group

13‧‧‧Z axial mechanism

131‧‧‧Z-axis saddle track group

14‧‧‧Floating cutterhead

Claims (3)

A small-sized and large-stroke CNC engraving and milling machine is applied to a gantry CNC milling machine, which is composed of an X-axis mechanism, a Y-axis mechanism and a Z-axis mechanism, and the X-axis mechanism is located on the Y-axis. Above the mechanism, the Z-axis mechanism is located above the Y-axis mechanism, wherein the X-axis mechanism comprises: an X-axis beam rear-type body; and two X-axis rails respectively disposed on the X-axis beam rear type The upper and lower sides of the body; a ㄈ-shaped X-axis saddle body disposed on the front side of the X-axis beam rear-mounted body; and the plurality of X-axis upper sliders assembled on the upper side of the ㄈ-shaped X-axis saddle body An X-axis lower slider is assembled on the lower side of the X-axis saddle body; and is integrated with the X-axis beam rear-type body, and the X-axis upper slider covers a range beyond the main effective stroke of the X-axis rail; The Y-axis mechanism comprises: a bottom plate base assembly, two side uprights, a plurality of Y-axis rail sets, a central support steel plate and a transmission adapter; a set of Y-axis rail sets are disposed above the central support steel plate in a reverse direction Set, the left and right sides of the central support steel plate are combined with the two side columns, with high precision And two side uprights and the X-axis saddle ㄈ shaped central body is provided another group of a plurality of Y-axis rails in cross direction of the support member furnishings. The CNC engraving and milling machine of the miniaturized large stroke according to claim 1 further comprises a supporting rear steel plate coupled to the rear side of the X-axis cross-body rear body, and the X-axis mechanism is centrally provided with a transmission adapter. seat. The miniaturized large stroke CNC engraving and milling machine according to claim 1 further comprises a floating cutter head having a steering mechanism, a center rotor, a superior rubber floating ring and a plurality of tool holders.