Special gantry drilling and milling machine equipment with double spindles and double workbenches

Abstract

The invention relates to the field of multifunctional metal processing machine tools, in particular to double-spindle double-workbench gantry drilling and milling special machine equipment which comprises a fixed gantry lathe bed and further comprises two pairs of Y-axis parallel linear rails installed on a fixed gantry lathe bed platform, and each pair of linear rails of the Y axis is connected with a sliding table in a servo drive mode. The two sides of a gantry of the fixed gantry lathe bed are each provided with a pair of X-axis parallel linear rails, the two pairs of linear rails of the X axis are connected with a sweeping main shaft and a drilling and tapping main shaft in a servo drive mode respectively, and the gantry of the fixed gantry lathe bed is located in the middle of the Y-axis linear rails. According to the machine tool, the two working procedures of face milling and drilling and tapping are integrated on one machine tool, face milling and drilling and tapping do not interfere with each other, function partition is safely isolated, the double sliding tables alternately move in the two machining areas for feeding and discharging, and therefore multi-working-procedure efficient machining of products through a single machine tool is achieved, and the machining efficiency is improved. A special supporting assembly is further designed for the sliding table in the structural layout, and the supporting assembly is used for improving the compatibility of equipment to plate machining.

Description

Technical Field

[0001] The invention relates to the field of multifunctional metal processing machine tools, in particular to a double-spindle double-worktable gantry drilling and milling machine equipment. Background Art

[0002] In order to improve the processing efficiency, the existing conventional gantry machining equipment increases the number of single spindles to two or more, and processes multiple workpieces at the same time to improve the processing efficiency. However, there are also limitations. The main one is that all the spindles are relatively fixed on the same Z-axis slide and perform the same processing content synchronously. A single spindle cannot execute different processing procedures. Products that require multiple processing procedures still require more than one machine tool. Therefore, the present invention proposes a dual-spindle dual-worktable gantry drilling and milling machine equipment in which dual spindles do not interfere with each other. Summary of the invention

[0003] In view of the above-mentioned problems or problems existing in the prior art with multi-spindle gantry, the present invention is proposed.

[0004] Therefore, the object of the present invention is to provide a double-spindle double-worktable gantry drilling and milling machine equipment.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a dual-spindle dual-table gantry drilling and milling machine equipment, including a fixed gantry bed, and also including two pairs of Y-axis parallel linear rails installed on the fixed gantry bed platform, each pair of Y-axis linear rails are servo-driven and connected to a slide, a pair of X-axis parallel linear rails are installed on both sides of the gantry of the fixed gantry bed, the two pairs of X-axis linear rails are servo-driven and connected to a scanning spindle and a drilling spindle, and the gantry of the fixed gantry bed is located in the middle of the Y-axis axis rail; the top of the slide is fixedly connected to a support plate, and the support plate is fixedly connected to a support assembly, which includes An electromagnetic push rod is fixedly connected to the bottom surface of the support plate, and a reducing short tube is fixedly connected to the top surface of the support plate, the large diameter end of the short tube opens upward, and the push rod of the electromagnetic push rod coaxially passes through the short tube, a short column 1 is machined at the top end of the push rod of the electromagnetic push rod, a sliding sleeve is slidably sleeved in the short tube, and an "L"-shaped short pin is arranged between the inner wall of the sliding sleeve and the short column 1, one short side of the short pin passes through the inner wall of the sliding sleeve and is plugged into the inner wall of the short tube, and the other short side of the short pin is in sliding contact with the wall around the short column, a pair of short pins are symmetrically distributed about the short column 1, and a coil spring is sleeved between the tops of the two short pins.

[0006] As a preferred solution of the dual-spindle dual-worktable gantry drilling and milling machine equipment of the present invention, wherein: a partition is arranged between the gantry columns of the fixed gantry bed, and the partition is provided with slots to match the moving paths of the two groups of slides, and each slot is equipped with a pneumatic vertically movable baffle.

[0007] As a preferred solution of the dual-spindle dual-table gantry drilling and milling machine equipment of the present invention, wherein: the exterior of the fixed gantry bed is sleeved with a shell, and safety doors are provided at both ends of the Y-axis line rail of the shell.

[0008] As a preferred solution of the dual-spindle dual-table gantry drilling and milling machine equipment of the present invention, wherein: the outer wall of the small-diameter end of the variable-diameter short tube is threadedly fastened to the threaded hole opened on the support plate.

[0009] As a preferred solution of the dual-spindle dual-worktable gantry drilling and milling machine equipment of the present invention, a conical transition is arranged between the short column 1 and the push rod of the electromagnetic push rod, and the outer wall of the "L"-shaped bent outer corner of the short pin is provided with a groove 1 that fits and sleeves with the conical surface, the side wall of the short tube is provided with a conical hole, and one end of the short pin is matched and plugged with the conical hole along the radial direction of the short tube, and the circumferential wall of the other end of the short pin is provided with a circular arc groove 2 that fits and sleeves with the circumferential wall of the short column.

[0010] As a preferred solution of the dual-spindle dual-worktable gantry drilling and milling machine equipment of the present invention, wherein: the top of the sliding sleeve is set as a circular groove, the bottom of the sliding sleeve is provided with a circular sliding groove, and one end of the two short pins and the short columns are slidingly connected with the sliding groove.

[0011] As a preferred solution of the dual-spindle dual-table gantry drilling and milling machine equipment of the present invention, the coil spring is arranged at the bottom of the circular groove, and the inner diameter of the coil spring after contraction is smaller than the size obtained by subtracting the diameter of the short column from twice the diameter of the short pin.

[0012] As a preferred solution of the dual-spindle dual-table gantry drilling and milling machine equipment of the present invention, wherein: the top of the short column one is turned to form a short column two, and the top of the short column two is clamped with a retaining spring, and the outer diameter of the retaining spring is larger than the diameter of the short column one.

[0013] As a preferred solution of the dual-spindle dual-table gantry drilling and milling machine equipment of the present invention, wherein: the radius of the short column one minus the radius of the short column two is greater than the depth of the short pin end inserted into the tapered hole.

[0014] As a preferred solution of the dual-spindle and dual-worktable gantry drilling and milling machine equipment of the present invention, wherein: the fixed gantry bed platform is located on both sides of the two pairs of Y-axis line rails and is provided with chip grooves, the cross-sectional contour of the chip groove is semicircular, and a spiral screw is coaxially sleeved in the chip groove, and one end of the screw is fixedly coaxially connected to a pulley and rotatably connected to the fixed gantry bed sheet metal.

[0015] The beneficial effects of the dual-spindle dual-table gantry drilling and milling machine equipment of the present invention: the present invention integrates the two processes of milling and drilling and tapping into one machine tool, the milling and drilling and tapping processing do not interfere with each other, and the functional areas are safely isolated. The double slides alternately move in the two processing areas to load and unload materials, thereby realizing efficient multi-process processing of the product by a single machine tool. The present invention also designs a special support component for the slide in the structural layout to improve the compatibility of the equipment with plate processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0017] Figure 1 This is a structural schematic diagram of the dual-spindle dual-table gantry drilling and milling machine equipment from the drilling and tapping spindle side perspective.

[0018] Figure 2 This is a structural schematic diagram of the dual-spindle dual-table gantry drilling and milling machine equipment located from the scanning spindle side perspective.

[0019] Figure 3 Schematic diagram of the structure of the dual-spindle dual-table gantry drilling and milling machine after removing the sheet metal shell.

[0020] Figure 4 Schematic diagram of the chip removal structure of the fixed gantry bed Figure 5 It is a structural diagram of the slide.

[0021] Figure 6 It is a schematic diagram of the structure of the support plate on the slide.

[0022] Figure 7 It is a structural cross-sectional view of the pallet located at the support assembly.

[0023] Figure 8 for Figure 7 Structural cross-section view at point A in the middle.

[0024] Fig. 9 for Figure 8 Structural breakdown diagram.

[0025] In the figure: 100, fixed gantry bed; 101, sweeping spindle; 102, drilling spindle; 103, partition; 104, baffle; 105, shell; 106, safety door; 107, chip groove; 108, screw; 200, slide; 201, support plate; 202, support assembly; 203, electromagnetic push rod; 204, short tube; 205, short column one; 206, short column two; 207, tapered surface; 208, sliding sleeve; 209, short pin; 210, coil spring; 211, retaining spring; 204a, tapered hole; 208a, circular groove; 208b, slide groove; 209a, groove one; 209b, groove two. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] Example, see Figure 1 to Figure 9 This embodiment provides a dual-spindle dual-table gantry drilling and milling machine equipment, which integrates the two processes of milling and drilling and tapping into one machine tool and isolates the functional areas to achieve multi-process efficient processing of products, such as Figure 3 As shown, it includes a fixed gantry bed 100, and also includes two pairs of Y-axis parallel linear rails installed on the platform of the fixed gantry bed 100, each pair of Y-axis linear rails are servo-driven and connected to the slide 200, a pair of X-axis parallel linear rails are installed on both sides of the gantry of the fixed gantry bed 100, and the two pairs of X-axis linear rails are servo-driven and connected to the scanning spindle 101 and the drilling spindle 102, and the gantry of the fixed gantry bed 100 is located in the middle of the Y-axis line rails, and the fixed gantry bed 100 platform is located on both sides of the two pairs of Y-axis line rails. The chip grooves 107 are arranged, and the cross-sectional profile of the chip grooves 107 is semicircular, and a spiral screw 108 is coaxially sleeved in the chip groove 107, and one end of the screw 108 is fixedly coaxially connected to a pulley and rotatably connected to the sheet metal of the fixed gantry bed 100; like Figure 5 As shown, the top of the slide 200 is fixedly connected with a support plate 201. Figure 6 and Figure 7 As shown, the support plate 201 is fixedly connected to a support assembly, such as Figure 8 and Fig. 9As shown, it includes an electromagnetic push rod 203 fixedly connected to the bottom surface of the support plate 201, and a reducing short tube 204 fixedly connected to the top surface of the support plate 201, the large diameter end of the short tube 204 opens upward, and the push rod of the electromagnetic push rod 203 coaxially penetrates the short tube 204, and the top of the push rod of the electromagnetic push rod 203 is machined with a short column 205, a sliding sleeve 208 is slidably sleeved in the short tube 204, and an "L"-shaped short pin 209 is arranged between the inner wall of the sliding sleeve 208 and the short column 205, one short side of the short pin 209 penetrates the inner wall of the sliding sleeve 208 and is plugged into the inner wall of the short tube 204, and the other short side of the short pin 209 is in sliding contact with the peripheral wall of the short column 205, and a pair of short pins 209 are symmetrically distributed about the short column 205, and a coil spring 210 is sleeved between the tops of the two short pins 209.

[0028] Specifically, Figure 3 As shown, a partition 103 is provided between the gantry columns of the fixed gantry bed 100, and the partition 103 is provided with slots to match the moving paths of the two sets of slides 200, and each slot is provided with a pneumatic vertically movable baffle 104, as shown in FIG. Figure 1 and Figure 2 As shown, a shell 105 is sleeved on the outside of the fixed gantry bed 100, and safety doors 106 are provided at both ends of the Y-axis rail of the shell 105.

[0029] like Figure 8 As shown, the outer wall of the small diameter end of the reducing short tube 204 is threadedly fastened to the threaded hole opened on the support plate 201, as shown in FIG. Fig. 9 As shown, a conical surface 207 is provided between the short column 205 and the push rod of the electromagnetic push rod 203 for transition, and a groove 209a is provided on the outer wall of the "L"-shaped bent outer corner of the short pin 209 to fit and sleeve with the conical surface 207, a conical hole 204a is provided on the side wall of the short tube 204, and one end of the short pin 209 is matched and inserted with the conical hole 204a along the radial direction of the short tube 204, and a groove 209b with an arc surface is provided on the peripheral wall of the other end of the short pin 209 to fit and sleeve with the peripheral wall of the short column 205, the top of the sliding sleeve 208 is set as a circular groove 208a, and the bottom of the sliding sleeve 208 located at the circular groove 208a is provided with a circular sliding groove 208b, and one end of the two short pins 209 slidingly connected with the short column 1 205 is matched with the slide groove 208b for sliding connection, and the coil spring 210 is arranged at the bottom of the circular groove 208a, and the inner diameter of the coil spring 210 after shrinkage is smaller than the size obtained by subtracting the diameter of the short column 1 205 from the twice diameter of the short pin 209, the top of the short column 1 205 is machined with the short column 206, and the top of the short column 206 is clamped with a retaining spring 211, the outer diameter of the retaining spring 211 is larger than the diameter of the short column 1 205, and the radius of the short column 1 205 minus the radius of the short column 206 is larger than the depth of the end of the short pin 209 inserted into the tapered hole 204a.

[0030] The present invention provides a dual-spindle dual-table gantry drilling and milling machine, and in particular provides a multifunctional machining structure layout of a machine tool, and a slide 200 and a workpiece support assembly 202 thereof serving the structure layout.

[0031] The structural layout of the dual-spindle dual-worktable of the present invention is different from that of existing machining equipment in that, although both the present invention and existing machine tools use necessary equipment components such as linear rails and servo motors, and also adopt existing CNC programming and execution systems, the functional structural layout of the spindle and slide 200 of the present invention is completely different from that of existing equipment.

[0032] In combination with the prior art, the following is explained: Although the existing gantry machining equipment has two or even more spindles, the spindles are all fixed on the Z-axis slide 200, and the spindles are relatively fixed. There are two main ways to improve the machining efficiency: First, a fixture corresponding to the number of spindles is installed on the workpiece fixing table, and the relative position error between the fixture and the spindle is very high. All spindles are processed completely synchronously. This is a common multi-spindle processing method in the machining industry, that is, simply increasing or decreasing the number of spindles, and does not change the original functional structure layout of the machine tool; second, different spindles clamp different types of tools and process the same workpiece alternately, eliminating the process of tool changing in the tool magazine, thereby improving production efficiency very limitedly. When one spindle is processing, the other spindles are idle; The working mode of the dual-spindle dual-worktable structure layout of the present invention is: Figure 1 , Figure 2 and Figure 3 The two slides 200 move back and forth between the milling processing area and the drilling and tapping processing area on both sides of the gantry. The two processing areas are isolated by a partition 103 and a movable baffle 104. The purpose of isolation is to prevent flying chips from the processing area from affecting the loading and unloading of non-processing areas. The milling processing area is the loading area, and it enters the drilling and tapping processing area after scanning, and unloads from the drilling and tapping processing area after processing is completed. The blank is first scanned in the milling processing area. The two spindles can work simultaneously without interfering with each other, and the slide 200 continuously alternates positions for loading and unloading.

[0033] To achieve the above-mentioned objective functions, the present invention also involves the following technical details: refer to Figure 3 and Figure 5The fixing of the flat workpiece is to press or clamp the edge of the workpiece. When drilling and tapping the flat workpiece, the workpiece is easily deformed under the downward pressure of the tool. Therefore, there must be enough support points at the bottom of the flat workpiece. Drilling and tapping has another technical difficulty. When a through hole needs to be processed, the tool must pass through the workpiece. If there is an overlap between the processing position and the support, the tool will damage the support. Therefore, the present invention also provides a support assembly.

[0034] refer to Figure 8 The present invention supports the workpiece by contacting the top of the sleeve 208. When the electromagnetic push rod 203 is retracted, when its thinner short column 1 205 is between the two short pins 209, the coil spring 210 is contracted and drives the two short pins 209 to the middle of the sleeve 208, so that the short pins 209 are separated from the tapered hole 204a of the short tube 204. The electromagnetic push rod 203 continues to contract, and the retaining spring 211 at the top of the short column 206 presses down the top of the short pin 209, ensuring that the sleeve 208 contracts into the short tube 204, so that the sleeve 208 is separated from the bottom surface of the workpiece, leaving space for the tool to penetrate the workpiece; When the electromagnetic push rod 203 is pushed upward, Figure 5 As shown, the workpiece needs to be clamped and fixed on the support plate 201 first. The short column 206 tends to push open the short pin 209. However, since the resistance of the sliding sleeve 208 sliding upward is less than the resistance of the opening coil spring 210, the short column 206 is able to push the sliding sleeve 208 upward by pushing up the short pin 209. When the sliding sleeve 208 hits the bottom surface of the workpiece, the short column 206 is able to push open the short pin 209, so that the short pin 209 is inserted into the tapered hole 204a on the side wall of the short tube 204 through its chamfered end. The chamfer at the end of the short pin 209 fits with the inner wall of the tapered hole 204a to provide highly precise positioning of the sliding sleeve 208.

[0035] The installation position of each support component corresponds to the coordinates of the X-axis and Y-axis of the machine tool. When the spindle moves to the preset support component coordinate position, the machine tool system retracts the electromagnetic push rod 203 at the corresponding position. When the spindle leaves this position, the electromagnetic push rod 203 is ejected.

[0036] In summary, the present invention integrates the two processes of milling and drilling and tapping on one machine tool. The milling and drilling and tapping processes do not interfere with each other, and the functional areas are safely isolated. The double slides 200 alternately move in the two processing areas to load and unload materials, thereby realizing efficient multi-process processing of the product by a single machine tool. The present invention also designs a special support component for the slide 200 in the structural layout to improve the compatibility of the equipment with plate processing.

[0037] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A double-spindle double-table gantry drilling and milling machine, comprising a fixed gantry bed (100), characterized in that: It also includes two pairs of Y-axis parallel linear rails installed on the platform of the fixed gantry bed (100), each pair of Y-axis linear rails are servo-drivenly connected to a slide table (200), a pair of X-axis parallel linear rails are installed on both sides of the gantry of the fixed gantry bed (100), the two pairs of X-axis linear rails are servo-drivenly connected to a scanning spindle (101) and a drilling spindle (102), and the gantry of the fixed gantry bed (100) is located in the middle of the Y-axis linear rails; The top of the slide (200) is fixedly connected to a support plate (201), and the support plate (201) is fixedly connected to a support assembly, which includes an electromagnetic push rod (203) fixedly connected to the bottom surface of the support plate (201), and a short diameter reducing tube (204) fixedly connected to the top surface of the support plate (201), the large diameter end of the short tube (204) is open upward, and the push rod of the electromagnetic push rod (203) coaxially passes through the short tube (204), the top of the push rod of the electromagnetic push rod (203) is machined with a short column (205), and the short tube (20 4) The inner sliding sleeve is connected with a sliding sleeve (208), and an "L" short pin (209) is provided between the inner wall of the sliding sleeve (208) and the short column (205), one short side of the short pin (209) penetrates the inner wall of the sliding sleeve (208) and is plugged into the inner wall of the short tube (204), and the other short side of the short pin (209) is in close contact with the peripheral wall of the short column (205), a pair of the short pins (209) are symmetrically distributed about the short column (205), and a coil spring (210) is sleeved between the top ends of the two short pins (209).

2. The double-spindle double-table gantry drilling and milling machine equipment according to claim 1, characterized in that: A partition plate (103) is provided between the gantry columns of the fixed gantry bed (100), and the partition plate (103) is provided with slots matching the moving paths of the two sets of slides (200), and each slot is provided with a pneumatic vertically movable baffle plate (104).

3. The double-spindle double-table gantry drilling and milling machine equipment according to claim 2, characterized in that: The fixed gantry bed (100) is sleeved with a shell (105) on its exterior, and safety doors (106) are provided at both ends of the shell (105) located on the Y-axis rail.

4. The double-spindle double-table gantry drilling and milling machine equipment according to claim 1, characterized in that: The outer wall of the small-diameter end of the reducing short tube (204) is threadedly fastened to a threaded hole provided on the supporting plate (201).

5. The double-spindle double-table gantry drilling and milling machine equipment according to claim 1, characterized in that: A conical surface (207) is provided between the short column (205) and the push rod of the electromagnetic push rod (203) for transition, and a groove (209a) is provided on the outer wall of the "L"-shaped bent outer corner of the short pin (209) to fit and sleeve with the conical surface (207), a conical hole (204a) is provided on the side wall of the short tube (204), and one end of the short pin (209) is matched and plugged with the conical hole (204a) along the radial direction of the short tube (204), and a groove (209b) with an arc surface is provided on the peripheral wall of the other end of the short pin (209) to fit and sleeve with the peripheral wall of the short column (205).

6. The double-spindle double-table gantry drilling and milling machine equipment according to claim 5, characterized in that: The top end of the sliding sleeve (208) is arranged as a circular groove (208a), the bottom of the sliding sleeve (208) is arranged with a circular sliding groove (208b), and one end of the two short pins (209) slidingly connected with the short column (205) is matched with the sliding groove (208b) for sliding connection.

7. The double-spindle double-table gantry drilling and milling machine equipment according to claim 6, characterized in that: The coil spring (210) is arranged at the bottom of the circular groove (208a), and the inner diameter of the coil spring (210) after contraction is smaller than the size obtained by subtracting the diameter of the short column (205) from twice the diameter of the short pin (209).

8. The double-spindle double-table gantry drilling and milling machine equipment according to claim 5, characterized in that: The top end of the short column one (205) is machined to form a short column two (206), and the top end of the short column two (206) is clamped with a retaining ring (211), wherein the outer diameter of the retaining ring (211) is greater than the diameter of the short column one (205).

9. The double-spindle double-table gantry drilling and milling machine equipment according to claim 8, characterized in that: The radius of the short column 1 (205) minus the radius of the short column 2 (206) is greater than the depth of the end of the short pin (209) inserted into the tapered hole (204a).

10. The double-spindle double-table gantry drilling and milling machine equipment according to claim 1, characterized in that: The fixed gantry bed (100) platform is provided with chip grooves (107) on both sides of the two pairs of Y-axis rails, the cross-sectional profile of the chip groove (107) is semicircular, and a helical screw rod (108) is coaxially sleeved in the chip groove (107), and one end of the screw rod (108) is fixedly coaxially connected to a pulley and rotatably connected to the fixed gantry bed (100) sheet metal.

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