A precision multi-irregular surface parallel processing numerical control machine tool

Abstract

The utility model discloses a kind of precision multi-form surface parallel processing numerical control machine tools, two wing-shaped platforms that stretch out to two sides are equipped in middle part of bed body, a stable double-sided gantry is configured on the platform, two groups of symmetrical transverse dovetail guide rails are in the two sides of gantry;Single transverse slide is equipped on the dovetail guide rail of left side of gantry, the slide is guided by left side dovetail guide rail, hand shake left side 'T' type screw rod is longitudinally moved;Vertical dovetail guide rail is equipped in the front of transverse slide, vertical slide is vertically moved under the drive of vertical 'T' type screw rod through vertical dovetail guide rail, round handle is equipped in the upper end of vertical 'T' type screw rod;One piece horizontal milling head is equipped on left side vertical slide;The milling head of right side includes two inclined milling heads, two inclined milling heads are respectively configured on front and rear two vertical slides.The utility model is high in processing efficiency, better in stability, and easy to operate.

Description

Technical Field

[0001] This utility model relates to a precision multi-faceted parallel machining CNC machine tool. Background Technology

[0002] In the existing technology, there exists a key component used in knitting machinery—the needle plate. This is a long, strip-shaped steel plate component. Figure 1 Before the success of this technology, it was usually used in gantry planer processing. This process has several disadvantages: 1. It is difficult to sharpen the planer blade, so the groove dimensions are not standardized; 2. Due to the unstable precision of the planer, the groove shape error is large, and it is difficult to guarantee the straightness of the groove; 3. The processing speed is slow. It usually takes 2-3 hours to plan two wire grooves on a plate.

[0003] Of course, modern horizontal machining centers can also process... Figure 1 The workpiece shown can be machined with high precision in terms of groove shape and longitudinal straightness of the wire groove. However, there are also drawbacks: 1. Due to the maximum length of the workpiece exceeding 2450mm, a long machine tool table is required, and the machine tool spindle needs to be equipped with B-axis oscillation. This results in a higher price for the machining center; 2. Due to the complex shape, at least five tool changes are required during machining. At a feed rate of F=120mm / min, machining two (one set) wire grooves on a 2800mm long needle plate takes 117 minutes. Including loading and tool changing time, this single process takes at least 140 minutes per needle plate. Therefore, assuming a 16-hour two-shift system, each machine tool can process 7 needle plates per day. A typical small needle plate factory in this industry produces about 30,000 sets (60,000 pieces) annually, requiring 28-30 large machining centers. Such a large equipment configuration is unacceptable for most small and medium-sized factories. Utility Model Content

[0004] The purpose of this invention is to provide a precision multi-faceted parallel machining CNC machine tool with high processing efficiency, better stability, and simple operation.

[0005] The technical solution of this utility model is:

[0006] A precision multi-face parallel machining CNC machine tool includes a bed, characterized in that: two wing-shaped platforms extending to both sides are provided in the middle of the bed, and a stable double-sided gantry is configured on the platform; two sets of symmetrical transverse dovetail guides are provided on both sides of the gantry; a horizontal milling spindle is configured on the left side of the gantry, and two milling spindles with opposite angles are configured on the right side of the gantry.

[0007] A single transverse slide is mounted on the left side of the gantry dovetail guide rail. The slide is guided by the left dovetail guide rail and moves longitudinally by hand-cranking the left "T"-shaped screw. A vertical dovetail guide rail is located in front of the transverse slide. The vertical slide moves vertically via the vertical dovetail guide rail and is driven by the vertical "T"-shaped screw. A round handle is mounted on the upper end of the vertical "T"-shaped screw.

[0008] On the right side of the machine tool, that is, on the right side of the gantry beam, there is a transverse dovetail guide rail symmetrically arranged with the left side. Two transverse slides of the same size are mounted on the guide rail. The two transverse slides move along the right dovetail guide rail respectively. The two "T"-shaped lead screws are manually driven. The end faces of the two transverse slides have the same vertical dovetail guide rails, which guide the two vertical slides respectively.

[0009] A horizontal milling head is mounted on the left vertical slide plate; the right milling head includes two inclined milling heads, which are respectively arranged on the front and rear vertical slide plates.

[0010] An adjustable rotary plate is provided between the right milling head and the vertical slide to allow for the selection of different tilt angles.

[0011] Two independent spiral chip conveyors are installed on both sides of the machine bed. Chips and coolant will be automatically discharged to the cooling tank on the left. The lower layer of the cooling tank contains coolant, while the chips discharged by the spiral chip conveyors remain in the upper layer of the cooling tank, and the coolant flows into the cooling tank. Inside the cooling tank, there is a sedimentation tank and a filter tank to remove fine chips from the flowing coolant.

[0012] The upper part of the bed is equipped with a worktable, and a set of linear rolling guides provides precision guidance for the worktable between the bed and the workpiece. A permanent magnet platform is installed on the upper part of the worktable to clamp and position the workpiece. The longitudinal servo motor drives the worktable to move via the longitudinal ball screw.

[0013] This invention effectively improves processing efficiency and fully guarantees the quality of the processed needle plates. It can use 5-6 milling cutters (including saw blade milling cutters and forming saw blade milling cutters) for simultaneous processing. With an increased worktable travel length of approximately 1050mm, the maximum travel in a single pass is approximately 3250mm, and the processing time is 32 minutes. Each machine tool can process approximately 30 needle plates per day (16 hours). Based on an annual production of 30,000 sets (60,000 pieces), only 7 machine tools are needed. Because the machine tool is suitable for mass production, its operating mechanism is much simpler than that of a machining center, and it offers better rigidity, stability, and ease of operation. General workers can become proficient in its operation after two days of training.

[0014] The lower part of this invention is the bed component, with an elongated worktable. The worktable is precisely guided by longitudinal guide rails, and a servo motor drives the longitudinal movement of the worktable via a ball screw. A permanent magnet platform is fixed on the worktable. This permanent magnet platform is self-milled with a hobbing cutter, resulting in excellent flatness. The workpiece will be stably attracted to the permanent magnet platform. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a schematic diagram of a needle plate, a key component used in existing knitting machinery, where part A is the main processing location.

[0017] Figure 2 This is a structural schematic diagram of one embodiment of the present invention.

[0018] Figure 3 yes Figure 1 Another side view.

[0019] Figure 4 This is a diagram showing the tool configuration on the left. Detailed Implementation

[0020] A precision multi-faceted parallel machining CNC machine tool has two wing-shaped platforms extending to both sides in the middle of the bed 1. A stable double-sided gantry 10 is mounted on the platform. There are two sets of symmetrical transverse dovetail guideways 10.1 and 24.1 on both sides of the gantry. Two milling spindles 19 and 20 with opposite angles are mounted on the right side of the gantry, forming a complete multi-tool parallel machining process system.

[0021] A single transverse slide plate 12 is mounted on the left side of the gantry 10.1 dovetail guide rail. This slide plate is guided by the left dovetail guide rail and moved longitudinally by manually cranking the left "T"-shaped lead screw 13. A vertical dovetail guide rail 12.1 is located in front of the transverse slide plate 12. The vertical slide plate 9 moves vertically via the vertical dovetail guide rail and is driven by the vertical "T"-shaped lead screw 11. A circular handle 11.1 is mounted on the upper end of the vertical "T"-shaped lead screw. The vertical slide plate 9 is driven up and down by the handwheel 11 via the lead screw 11.1 to adjust the tool depth.

[0022] On the right side of the machine tool, specifically the right side of the gantry beam 14, there is a symmetrically arranged transverse dovetail guide rail 14.1. Two identical transverse slides 15 and 27 are mounted on this guide rail. The two transverse slides move along the right-side dovetail guide rail 14.1, driven manually by two T-shaped lead screws 28 and 29. The end faces of the two transverse slides 15 and 27 have identical vertical dovetail guide rails 15.1 and 27.1, respectively, guiding the two vertical slides 17 and 25. The two vertical slides 17 and 25 are moved up and down by manually manipulating the two vertical T-shaped lead screws 16 and 26 using two circular handles.

[0023] The upper part of the machine bed is equipped with a worktable 2, which is precisely guided by a set of linear rolling guides 7 between the machine bed and the workpiece. A permanent magnet platform 4 is mounted on the upper part of the worktable for clamping and positioning the workpiece. A longitudinal servo motor 21 drives the worktable movement via a longitudinal ball screw 22.

[0024] A horizontal milling head 8 is mounted on the left vertical slide plate, and 3-6 shaped saw blade milling cutters can be installed on the spindle. The size and configuration of the blades should be configured according to the requirements of the needle plate drawing.

[0025] The left-side tool configuration includes spacers 31, 32, 33, 34, and blades 35, 36, 37, and 38.

[0026] The milling head and cutting tool configuration on the right side of this patented technology is shown in the figure. Two inclined milling heads 19 and 20 are respectively positioned on the front and rear vertical slide plates 17 and 25. The spindle center forms a certain angle with the horizontal direction (e.g., 15° or 30°). An adjustable rotary plate 18 and 24 are provided between the milling head and the vertical slide plates 17 and 25 to facilitate the selection of different tilt angles.

[0027] Given that this machine tool is designed for mass production and the cutting tools do not need to be constantly repositioned, the movement of the three transverse slides and three vertical slides in this design is all manual, with a digital display device to facilitate adjustments when the tools wear out or need replacement. Of course, these six directions could also be designed with servo motor drives for even greater ease of operation. However, this would change the machine tool's digital controller from single-axis to seven-axis control, significantly increasing the machine tool's cost. This configuration is optional and can be chosen by the user.

[0028] Two independent spiral chip conveyors 23 are installed on both sides of the machine bed 1, automatically discharging chips and coolant to the cooling tank 5 on the left. The lower layer of the cooling tank contains coolant, while the chips discharged by the spiral chip conveyors remain in the upper layer of the cooling tank 5, and the coolant flows into the cooling tank 5. The coolant in this technology enters the cooling tank 5, which contains a sedimentation tank and a filter tank to remove fine chips from the flowing coolant. When the cooling water pump 6 is working, the pumped coolant will be virtually free of residual chips.

Claims

1. A precision multi-face parallel machining CNC machine tool, comprising a bed, characterized in that: Two wing-shaped platforms extending to the sides are provided in the middle of the bed. A stable double-sided gantry is mounted on the platform. There are two sets of symmetrical transverse dovetail guides on both sides of the gantry. A horizontal milling spindle is mounted on the left side of the gantry, and two milling spindles with opposite angles are mounted on the right side of the gantry. A single transverse slide is mounted on the left side of the gantry dovetail guide rail. The slide is guided by the left dovetail guide rail and moves longitudinally by hand-cranking the left "T"-shaped screw. A vertical dovetail guide rail is located in front of the transverse slide. The vertical slide moves vertically via the vertical dovetail guide rail and is driven by the vertical "T"-shaped screw. A round handle is mounted on the upper end of the vertical "T"-shaped screw. On the right side of the machine tool, that is, on the right side of the gantry beam, there is a transverse dovetail guide rail symmetrically arranged with the left side. Two transverse slides of the same size are mounted on the guide rail. The two transverse slides move along the right dovetail guide rail respectively. The two "T"-shaped lead screws are manually driven. The end faces of the two transverse slides have the same vertical dovetail guide rails, which guide the two vertical slides respectively. A horizontal milling head is mounted on the left vertical slide plate; the right milling head includes two inclined milling heads, which are respectively arranged on the front and rear vertical slide plates.

2. The precision multi-face parallel machining CNC machine tool according to claim 1, characterized in that: An adjustable rotary plate is provided between the right milling head and the vertical slide to allow for the selection of different tilt angles.

3. A precision multi-faceted parallel machining CNC machine tool according to claim 1 or 2, characterized in that: Two independent spiral chip conveyors are installed on both sides of the machine bed. Chips and coolant will be automatically discharged to the cooling tank on the left. The lower layer of the cooling tank contains coolant, while the chips discharged by the spiral chip conveyors remain in the upper layer of the cooling tank, and the coolant flows into the cooling tank. Inside the cooling tank, there is a sedimentation tank and a filter tank to remove fine chips from the flowing coolant.

4. A precision multi-faceted parallel machining CNC machine tool according to claim 1 or 2, characterized in that: The upper part of the bed is equipped with a worktable, and a set of linear rolling guides provides precision guidance for the worktable between the bed and the workpiece. A permanent magnet platform is installed on the upper part of the worktable to clamp and position the workpiece. The longitudinal servo motor drives the worktable to move via the longitudinal ball screw.

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