Workpiece supporting structure of gantry drilling machine

Abstract

The utility model discloses a workpiece supporting structure of a gantry drilling machine, and belongs to the technical field of plate machining. The structure comprises a groove body, a chip removal device, a supporting grid and four workpiece supports. The four workpiece supports are located at the four corners of the supporting grid correspondingly. The workpiece support comprises two locking fixing rods, at least one suspended supporting rod and a plurality of workpiece supporting plates. The workpiece supporting plate can be adjusted front and back, is arranged on the suspended supporting rod and is fixed to the locking fixing rod in a front-back adjusting mode. The two workpiece supports on the left side are located on the upper left portion of the chip removal device, and the two workpiece supports on the right side are located on the upper right portion of the chip removal device. For the workpiece support at the front part, a workpiece supporting plate is arranged at the front end of the workpiece support, and a plurality of unused workpiece supporting plates are detached or arranged away from the plate; for the workpiece support on the rear portion, a workpiece supporting plate is arranged at the rear end of the workpiece support, and the multiple workpiece supporting plates which are not used are detached or arranged away from the plate. The universality of the supporting structure is better.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of plate processing, especially relates to a workpiece support structure of gantry drilling machine, and is especially used for the drilling of plate laminates. BACKGROUND

[0002] Drilling machine is a kind of machine tool that utilizes drill bit to process workpiece, and is widely used in industrial production. The existing drilling machine usually comprises a rack, a fixing device and a drilling device. The user first fixes the object to be drilled by the fixing device, then moves the drilling device to drill, removes the drilling device after drilling, takes out the drilled object from the fixing device, and then repeats the above steps to drill the objects one by one. The drilled object needs to be replaced with the object to be drilled after each drilling.

[0003] For example, the patent with the application number CN201610743281.9 discloses a numerical control gantry mobile car milling and drilling and boring combined machine tool system, which comprises a workbench, a gantry, a crossbeam, a vertical tool holder, a left bed body, a right bed body, a hydraulic system and an electrical system. The workbench adopts lubricated guide rails, and the workbench spindle is a long spindle structure. Two sets of high-precision double-row short cylindrical roller bearings are installed on the spindle to ensure the radial runout of the workbench. The gantry is composed of a left stand column and a right stand column, and the gantry is connected with the bed body to form a closed symmetrical frame. The crossbeam is arranged in front of the left stand column and the right stand column, and two servo motor drives are arranged on the upper parts of the left stand column and the right stand column. The crossbeam moves vertically on the left stand column and the right stand column through ball screw pairs. The rear of the crossbeam is clamped by a hydraulic oil cylinder, and the right end of the crossbeam is provided with a horizontal feeding box of the tool holder and a walking table that can move with the crossbeam. The vertical tool holder is a numerical control tool holder, and the horizontal and vertical movements are driven by a Fanuc alternating current servo motor. The horizontal and vertical movements of the tool holder are realized through reducers and ball screw pairs. The horizontal movement of the tool holder is realized through a rectangular guide rail and a polytetrafluoroethylene soft belt mechanism. The vertical movement of the ram is realized through a rolling and sliding composite guide rail, and the vertical movement of the ram is provided with a hydraulic balance oil cylinder. The left bed body and the right bed body are each provided with two straight guide rails. The left stand column and the right stand column are arranged on the straight guide rails of the left bed body and the right bed body respectively. The horizontal movement of the gantry is driven by a Fanuc alternating current servo motor and realized through reducers and ball screw pairs. The crossbeam is provided with a boring and milling head box, the workbench is provided with a main transmission box, and the workbench is provided with a cooling and chip removal device.

[0004] In the prior art, the plate is placed on the workpiece support structure and fixed by the corresponding fixing structure during the drilling process. The prior art has at least the following problems: the drilled plate needs to be replaced with the plate to be drilled after each drilling, which leads to low drilling efficiency. The size of the plate is different, and the support structure needs to be adjusted according to the size of the plate to ensure the support effect while minimizing the support points (to avoid interference with the drill bit). Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a workpiece support structure for a gantry drilling machine. This structure allows sheet metal to be placed on one or more processing zones, enabling simultaneous clamping and unloading of sheet metal in other zones while processing is being performed in one zone, resulting in high efficiency. The number and position of the workpiece support plates are adjustable to accommodate sheet metal of different specifications. The technical solution is as follows:

[0006] This utility model embodiment provides a workpiece support structure for a gantry drilling machine, including a groove 1 and a chip removal device 2 at its bottom. The groove 1 is a rectangular groove arranged along the front-to-back direction, and the chip removal device 2 is arranged along the front-to-back direction and located in the middle of the groove 1. The workpiece support structure also includes a support grid 4 and four workpiece supports 5 on its upper side. The support grid 4 is horizontally arranged, located inside the groove 1, and above the chip removal device 2. It is a grid plate with four processing areas at its four corners. The four workpiece supports 5 are located on the four processing areas. Each workpiece support 5 includes two locking rods 51 arranged side by side, at least one suspended support rod 52 between the two locking rods 51, and multiple workpiece support plates 53 arranged side by side. The locking rods 51 and the suspended support rods 52 are all arranged along the front-to-back direction. All of them are fixed on the upper side of the support grid 4; the workpiece support plate 53 is arranged in the left and right direction, and can be adjusted back and forth. It is detachably mounted on the locking rod 51, with its middle part placed on the suspended support rod 52. Its left and right ends are respectively fixed to the two locking rods 51 in a back and forth adjustment manner; the two workpiece supports 5 on the left are arranged side by side and are located at the upper left of the chip removal device 2, and the two workpiece supports 5 on the right are arranged side by side and are located at the upper right of the chip removal device 2; for the front workpiece support 5, the front end of the workpiece support 5 is provided with a workpiece support plate 53, and the unused multiple workpiece support plates 53 are removed or set away from the plate 3; for the rear workpiece support 5, the rear end of the workpiece support 5 is provided with a workpiece support plate 53, and the unused multiple workpiece support plates 53 are removed or set away from the plate 3.

[0007] In this embodiment of the present invention, the chip removal device 2 is located on the center line of the trough 1; the bottom of the trough 1 is conical, with the left side of its bottom sloping downward from left to right to the left side of the chip removal device 2, and the right side of its bottom sloping downward from right to left to the right side of the chip removal device 2.

[0008] Furthermore, in this embodiment of the present invention, the two locking rods 51 are provided with sliding grooves 55 on their opposite sides, and the sliding grooves 55 are arranged in the front-to-back direction; the left and right ends of the lower side of the workpiece support plate 53 are provided with two sliders 56 that cooperate with the sliding grooves 55, and their ends are placed on the corresponding locking rods 51; the sliders 56 are slidably disposed in the corresponding sliding grooves 55, and the sliders 56 near the chip removal device 2 are provided with locking bolts 57; the locking bolts 57 are arranged in the left-to-right direction and lock the workpiece support plate 53 to the locking rods 51.

[0009] Preferably, in this embodiment of the present invention, the front and rear sides of the upper part of the workpiece support plate 53 gradually approach each other to form an isosceles trapezoid that is smaller at the top and larger at the bottom.

[0010] In this embodiment of the utility model, the supporting grid 4 includes multiple horizontal beams 41 arranged side by side and multiple vertical beams 42 arranged side by side. The horizontal beams 41 are arranged in the left-right direction and their left and right ends are respectively fixed to the left and right sides of the groove 1. The vertical beams 42 are arranged in the front-back direction and their front and rear ends are respectively fixed to the front and rear sides of the groove 1. The horizontal beams 41 and vertical beams 42 are arranged intersectingly. The workpiece bracket 5 also includes multiple reinforcing beams 54 arranged side by side. The reinforcing beams 54 are arranged in the left-right direction and are located between two locking rods 51. They are intersecting with the suspended support rods 52. Their tops are lower than the tops of the suspended support rods 53. They are fixed to the upper side of the corresponding horizontal beams 41. The locking rods 51 and the suspended support rods 52 are fixed to the upper side of the corresponding vertical beams 42.

[0011] Specifically, in this embodiment of the present invention, each workpiece support 5 is provided with a suspended support rod 52, three reinforcing beams 54 and M workpiece support plates 53. Two locking rods 51, one suspended support rod 52 and three reinforcing beams 54 form a grid-shaped structure, where M is an integer from 4 to 6.

[0012] Specifically, in this embodiment of the present invention, there are 6 longitudinal beams 42 and 6 transverse beams 41; the distance between the third transverse beam 41 and the fourth transverse beam 41 is 5-10cm; the third longitudinal beam 42 and the fourth longitudinal beam 42 are located on the left and right sides of the chip removal device 2 respectively and the distance between them is 10-25cm.

[0013] Preferably, in this embodiment of the present invention, the upper part of the front and rear sides of the trough 1 are provided with a flip door; the flip door is arranged in the left and right direction, its bottom is hinged to the trough 1, and its left and right ends are detachably connected to the corresponding side of the trough 1 by means of pins.

[0014] The beneficial effects of the technical solution provided by this utility model embodiment are as follows: This utility model embodiment provides a workpiece support structure for a gantry drilling machine, which can place sheet metal on one or more processing areas. While processing is being performed in one processing area, sheet metal in other processing areas can be clamped and removed, resulting in high efficiency. The number and position of the workpiece support plates can be adjusted to accommodate sheet metal of different specifications. This support structure is a mesh structure, which facilitates chip removal. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the workpiece support structure of the gantry drilling machine in this embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of the workpiece support structure of the gantry drilling machine in this embodiment of the present invention, showing the structure of the supporting steel plate.

[0017] Figure 3 yes Figure 1 A magnified view of a portion of the image;

[0018] Figure 4 This is a schematic diagram of the structure of the locking rod away from the chip removal device;

[0019] Figure 5 This is a structural diagram of the side of the locking rod near the chip removal device.

[0020] In the diagram: 1. Tank body; 2. Chip removal device; 3. Plate; 4. Support grid; 5. Workpiece support.

[0021] 41. Horizontal beam; 42. Longitudinal beam;

[0022] 51 Locking rod, 52 Suspended support rod, 53 Workpiece support plate, 54 Reinforcing beam, 55 Slide groove, 56 Slider, 57 Locking bolt. Detailed Implementation

[0023] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0024] Example 1

[0025] See Figures 1-5 Example 1 provides a workpiece support structure for a gantry drilling machine, including a groove 1, a chip removal device 2, a support grid 4, and four workpiece supports 5. The groove 1 is a rectangular groove arranged along the front-to-back direction, with a conical bottom. Specifically, the left side of the bottom of the groove 1 slopes downward from left to right to the left side of the chip removal device 2, and the right side of the bottom slopes downward from right to left to the right side of the chip removal device 2. The chip removal device 2 is located at the bottom of the groove 1, arranged along the front-to-back direction, and is located in the middle of the groove 1 (specifically on the centerline of the groove 1), with its front extending forward relative to the front side of the groove 1.

[0026] The supporting grid 4 is horizontally arranged inside the trough 1 and above the chip removal device 2. It is a mesh plate with four processing zones at its four corners. Specifically, the supporting grid 4 includes multiple horizontal beams 41 arranged side by side and multiple vertical beams 42 arranged side by side. The horizontal beams 41 are arranged in the left-right direction and their left and right ends are fixed to the left and right sides of the trough 1, respectively. The vertical beams 42 are arranged in the front-back direction and their front and rear ends are fixed to the front and rear sides of the trough 1, respectively. The horizontal beams 41 and the vertical beams 42 are arranged intersectingly.

[0027] The four workpiece supports 5 are located in the four processing zones, at the four corners of the upper side of the support grid 4. Each processing zone is equipped with a fixing structure for the fixing plate 3.

[0028] The workpiece support 5 includes two locking rods 51 arranged side-by-side, at least one suspended support rod 52 between the two locking rods 51, multiple workpiece support plates 53 arranged side-by-side, and multiple reinforcing beams 54 arranged side-by-side. The locking rods 51 and suspended support rods 52 are both arranged in the front-back direction and are fixed to the upper side of the corresponding longitudinal beam 42. If there are multiple suspended support rods 52, they are arranged side-by-side. The reinforcing beams 54 are arranged in the left-right direction, positioned between the two locking rods 51, intersecting with the suspended support rods 52. Their tops are lower than the tops of the suspended support rods 53, and they are fixed to the upper side of the corresponding transverse beam 41. The workpiece support plates 53 are arranged in the left-right direction, adjustable front-back, and detachably (e.g., removed forward or backward) mounted on the locking rods 51. The middle part rests on the suspended support rods 52, and the left and right ends are respectively adjustable and fixed to the two locking rods 51. Two workpiece supports 5 on the left are arranged side-by-side, positioned above and to the left of the chip removal device 2. Two workpiece supports 5 on the right are also arranged side-by-side, positioned above and to the right of the chip removal device 2. For the front workpiece support 5, a workpiece support plate 53 is provided at its front end. Multiple unused workpiece support plates 53 are removed or positioned away from the plate 3 (located at the front or rear, with multiple workpiece support plates 53 arranged adjacent to each other). For the rear workpiece support 5, a workpiece support plate 53 is provided at its rear end. Multiple unused workpiece support plates 53 are removed or positioned away from the plate 3 (located at the front or rear, with multiple workpiece support plates 53 arranged adjacent to each other). At least two workpiece support plates 53 are required to support the plate 3. Therefore, if the number of workpiece support plates 53 in each workpiece support 5 is N, for workpiece supports 5 that support the plate 3, the number of unused workpiece support plates 53 is less than or equal to N-1; for workpiece supports 5 that do not support the plate 3, the number of unused workpiece support plates 53 is N.

[0029] Further, see Figures 4-5In this embodiment of the invention, the two locking rods 51 have sliding grooves 55 on their opposite sides, which are arranged in the front-to-back direction. Two sliders 56 (vertically arranged) that cooperate with the sliding grooves 55 are located at the left and right ends of the lower side of the workpiece support plate 53, with their ends resting on the corresponding locking rods 51. The sliders 56 slide within the corresponding sliding grooves 55, and the slider 56 near the chip removal device 2 is provided with a locking bolt 57. The locking bolt 57 is arranged in the left-to-right direction and locks the workpiece support plate 53 onto the locking rod 51. Specifically, for the workpiece support 5 on the left side, the slider 56 on the right locking rod 51 is provided with a locking bolt 57. Loosening the locking bolt 57 allows the workpiece support plate 53 to be adjusted forward and backward or removed forward and backward.

[0030] Preferably, in this embodiment of the invention, the front and rear sides of the upper part of the workpiece support plate 53 gradually approach each other to form an isosceles trapezoid with a smaller upper part and a larger lower part, so as to reduce the contact area and facilitate drilling.

[0031] Example 2

[0032] Example 2 provides a workpiece support structure for a gantry drilling machine, which is basically the same as the structure in Example 1, except that: in this example, the upper part of the front and rear sides of the groove 1 is provided with a flip door. The flip door is arranged in the left-right direction, and its bottom is hinged to the groove 1. Its left and right ends are detachably connected to the corresponding sides of the groove 1 through pins (arranged in the left-right direction and equipped with pin holes). Specifically, the flip door on the front side can be opened forward, and the flip door on the rear side can be opened backward; opening the flip door allows the operator to enter to adjust the workpiece support plate 53 and place the plate 3.

[0033] Example 3

[0034] Example 3 provides a workpiece support structure for a gantry drilling machine, which is basically the same as the structure of Example 1, except that: in this example, each workpiece support 5 is provided with a suspended support rod 52, three reinforcing beams 54, and M workpiece support plates 53. Two locking rods 51, one suspended support rod 52, and three reinforcing beams 54 form a grid-like structure, where M is an integer from 4 to 6. Correspondingly, there are 6 longitudinal beams 42 and 6 transverse beams 41. The distance between the third transverse beam 41 (counting from front to back) and the fourth transverse beam 41 is 5-10 cm, and the distance between the other transverse beams 41 is 30-80 cm. The third longitudinal beam 42 (counting from right to left) and the fourth longitudinal beam 42 are located on the left and right sides of the chip removal device 2, respectively, and the distance between them is 10-25 cm, while the distance between the other longitudinal beams 42 is 30-80 cm.

[0035] Example 4

[0036] See Figure 2Example 4 provides a workpiece support structure for a gantry drilling machine, which is basically the same as the structure in Example 3, except that the workpiece support structure in this example is used on a gantry drilling machine. The gantry drilling machine can move in the front-to-back direction. The plate 3 is located in the right rear processing area of ​​the tank 1, and the other three processing areas do not process the plate 3. The plate 3 is supported by two workpiece support plates 53. The number of workpiece support plates 53 in each workpiece bracket 5 is 5. The workpiece support plates 53 in the right rear processing area are distributed as 1 (located at the front end of the plate 3), 1 (located at the rear end of the plate 3), and 3 (located at the front of the plate 3). The workpiece support plates 53 in the other three processing areas are distributed as 1 and 4. The plate can be clamped and removed in any of the other three processing areas (preferably the left front processing area).

[0037] Example 5

[0038] Example 5 provides a workpiece support structure for a gantry drilling machine, which is basically the same as the structure in Example 3, except that the workpiece support structure in this example is used on a gantry drilling machine. The gantry drilling machine can move in the front-to-back direction. The plate 3 is relatively wide and is located on the two processing areas at the rear of the tank 1 (spanning the two processing areas). Therefore, the two processing areas at the front do not process the plate 3. The right rear and left rear processing areas each use two workpiece support plates 53 to support the plate 3. The number of workpiece support plates 53 in each workpiece bracket 5 is 5. The distribution of the workpiece support plates 53 in the right rear and left rear processing areas is 1 (located at the front end of the plate 3), 1 (located at the rear end of the plate 3), and 3 (located at the front of the plate 3). The distribution of the workpiece support plates 53 in the other two processing areas is 1 and 4. Thus, the plate can be clamped and removed simultaneously in the two processing areas at the front.

[0039] Example 6

[0040] Example 6 provides a workpiece support structure for a gantry drilling machine, which is basically the same as the structure in Example 3, except that the workpiece support structure in this example is used on a gantry drilling machine. The gantry drilling machine can move in the front-back direction. The plate 3 is located in the right rear processing area of ​​the tank 1, and the plate is relatively long. The other three processing areas do not process the plate 3. The plate 3 is supported by three workpiece support plates 53 (located at the front and rear ends and the middle of the plate 3, respectively). Each workpiece support bracket 5 has 5 workpiece support plates 53. The workpiece support plates 53 in the right rear processing area are distributed as follows: 1 (located at the front end of the plate 3), 1 (located in the middle of the plate 3), 1 (located at the rear end of the plate 3), and 2 (located at the front of the plate 3). The workpiece support plates 53 in the other three processing areas are distributed as follows: 1 and 4. The plate can be clamped and removed in any of the other three processing areas (preferably the left front processing area).

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A workpiece support structure for a gantry drilling machine, comprising a groove (1) and a chip removal device (2) at its bottom, wherein the groove (1) is a rectangular groove arranged along the front-to-back direction, and the chip removal device (2) is arranged along the front-to-back direction and is located in the middle of the groove (1); characterized in that, The workpiece support structure also includes a support grid (4) and four workpiece supports (5) on its upper side; the support grid (4) is horizontally arranged, located in the groove (1), located above the chip removal device (2), and is a mesh plate with four processing areas at its four corners; the four workpiece supports (5) are located on the four processing areas respectively. The workpiece support (5) includes two locking rods (51) arranged side by side, at least one suspended support rod (52) between the two locking rods (51), and multiple workpiece support plates (53) arranged side by side. The locking rods (51) and the suspended support rods (52) are both arranged in the front-back direction and are fixed on the upper side of the support grid (4). The workpiece support plates (53) are arranged in the left-right direction and can be adjusted back and forth. They are detachably mounted on the locking rods (51), with the middle part placed on the suspended support rods (52), and the left and right ends respectively fixed to the two locking rods (51) in a front-back adjustment manner. The two workpiece supports (5) on the left are arranged side by side and are located above the left of the chip removal device (2). The two workpiece supports (5) on the right are arranged side by side and are located above the right of the chip removal device (2). For the front workpiece support (5), a workpiece support plate (53) is provided at the front end of the workpiece support (5). The unused multiple workpiece support plates (53) are removed or set away from the plate (3). For the rear workpiece support (5), a workpiece support plate (53) is provided at the rear end of the workpiece support (5). The unused multiple workpiece support plates (53) are removed or set away from the plate (3).

2. The workpiece support structure of the gantry drilling machine according to claim 1, characterized in that, The chip removal device (2) is located on the center line of the tank (1); the bottom of the tank (1) is conical, with the left side of its bottom sloping downward from left to right to the left side of the chip removal device (2), and the right side of its bottom sloping downward from right to left to the right side of the chip removal device (2).

3. The workpiece support structure of the gantry drilling machine according to claim 1, characterized in that, Two locking rods (51) are provided with sliding grooves (55) on opposite sides, and the sliding grooves (55) are arranged in the front-to-back direction; the workpiece support plate (53) is provided with two sliders (56) at the left and right ends of the lower side, which cooperate with the sliding grooves (55), and their ends are placed on the corresponding locking rods (51); the sliders (56) are slidably arranged in the corresponding sliding grooves (55), and the sliders (56) near the chip removal device (2) are provided with locking bolts (57); the locking bolts (57) are arranged in the left-to-right direction and lock the workpiece support plate (53) on the locking rods (51).

4. The workpiece support structure of the gantry drilling machine according to claim 1, characterized in that, The front and rear sides of the upper part of the workpiece support plate (53) gradually approach each other to form an isosceles trapezoid with a smaller upper part and a larger lower part.

5. The workpiece support structure of the gantry drilling machine according to claim 1, characterized in that, The supporting grid (4) includes multiple horizontal beams (41) arranged side by side in front and back and multiple vertical beams (42) arranged side by side in left and right. The horizontal beams (41) are arranged in the left and right direction and their left and right ends are respectively fixed to the left and right sides of the groove (1). The vertical beams (42) are arranged in the front and back direction and their front and rear ends are respectively fixed to the front and rear sides of the groove (1). The horizontal beams (41) and the vertical beams (42) are arranged in a cross direction. The workpiece support (5) also includes multiple reinforcing beams (54) arranged side by side; the reinforcing beams (54) are arranged in the left and right direction, between two locking rods (51), and are arranged intersecting with the suspended support rods (52). The top of the reinforcing beams (54) is lower than the top of the suspended support rods (52), and they are fixed on the upper side of the corresponding crossbeam (41); the locking rods (51) and the suspended support rods (52) are fixed on the upper side of the corresponding longitudinal beams (42).

6. The workpiece support structure of the gantry drilling machine according to claim 5, characterized in that, Each workpiece support (5) is provided with a suspended support rod (52), three reinforcing beams (54) and M workpiece support plates (53). Two locking rods (51), one suspended support rod (52) and three reinforcing beams (54) form a grid-shaped structure, where M is an integer from 4 to 6.

7. The workpiece support structure of the gantry drilling machine according to claim 6, characterized in that, The number of longitudinal beams (42) is 6, and the number of cross beams (41) is 6; the distance between the third cross beam (41) and the fourth cross beam (41) is 5-10cm; the third longitudinal beam (42) and the fourth longitudinal beam (42) are located on the left and right sides of the chip removal device (2) respectively, and the distance between them is 10-25cm.

8. The workpiece support structure of the gantry drilling machine according to claim 1, characterized in that, The upper part of the front and rear sides of the trough (1) is provided with a flip door; the flip door is arranged in the left and right direction, its bottom is hinged to the trough (1), and its left and right ends are detachably connected to the corresponding side of the trough (1) by a pin.

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