A multi-station gantry milling machine and its machining method

Abstract

This invention relates to a multi-station gantry milling machine and its machining method, belonging to the technical field of gantry milling machines. It includes a gantry milling machine body, with gantry frames mounted on both sides of the outer exterior of the gantry milling machine body. A protective frame is connected to the outer side of the gantry milling machine body and is located inside the gantry frames. A support plate is connected inside the protective frame, and a motor is mounted above the support plate. In this invention, starting the motor drives a rotating rod to rotate, which in turn causes a cleaning frame to move horizontally. The horizontal movement of the cleaning frame on the table surface of the gantry milling machine body cleans debris from the table surface. During the rotation of the cleaning frame, cleaning rollers also rotate, cleaning debris from the table surface grooves. This prevents debris accumulation in the grooves from affecting the installation accuracy of the clamping. A collection frame is provided to collect the debris for subsequent unified processing.

Description

Technical Field

[0001] This invention relates to the field of gantry milling machine technology, specifically to a multi-station gantry milling machine and its machining method. Background Technology

[0002] A gantry milling machine is a heavy-duty precision machining equipment with a gantry frame and a horizontal long bed. It is primarily used for machining large parts on planes, inclined surfaces, and complex curved surfaces. It is a core piece of equipment in the heavy machining field of industrial production. Its overall structure consists of three core parts: the gantry frame, the bed and worktable, and the electrical and control system. The gantry frame includes columns, top beams, and crossbeams. The crossbeams and columns can be equipped with multiple milling heads to achieve simultaneous cutting at multiple stations, greatly improving machining efficiency. Gantry milling machines have a wide range of applications, covering aerospace, energy equipment, engineering machinery, shipbuilding, rail transportation, and many other fields, for machining various large structural components.

[0003] During the machining process of workpieces using existing multi-station gantry milling machines, the cutting chips generated are easily splashed onto the worktable and the surrounding environment. Since the worktable is equipped with a slide groove that cooperates with the fixed fixture, the chips tend to accumulate after falling into the slide groove, which adversely affects the installation and positioning accuracy of the fixture. In addition, the overall area of ​​the worktable of a multi-station gantry milling machine is large, and manual chip removal is time-consuming, labor-intensive, and inefficient, making it difficult to meet the needs of high-efficiency continuous machining.

[0004] To address the aforementioned issues, innovative design based on existing methods is urgently needed. Summary of the Invention

[0005] The purpose of this invention is to provide a multi-station gantry milling machine and a machining method to solve the technical problem in the background art where cutting chips generated when the multi-station gantry milling machine uses the milling head to process the workpiece are prone to accumulation after falling into the slide groove, which has an adverse effect on the installation and positioning accuracy of the fixture. This invention provides a solution that is significantly different from the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a multi-station gantry milling machine, comprising a gantry milling machine body, a gantry frame mounted on both sides of the outer side of the gantry milling machine body, a protective frame connected to the outer side of the gantry milling machine body and disposed inside the gantry frame, a support plate connected inside the protective frame, and a motor mounted above the support plate, a rotating rod connected to the output end of the motor, and a first reciprocating lead screw rotatably connected to both sides inside the protective frame, the first reciprocating lead screw being connected to the rotating rod via a transmission belt assembly. A cleaning frame is fitted onto a protective frame, and the cleaning frame is slidably connected to the protective frame. A transmission rod is rotatably connected to the inner side of the cleaning frame, and gears are fitted to both ends of the transmission rod. A cleaning roller is rotatably connected to the bottom of the cleaning frame, and the inner shaft of the cleaning roller is connected to the transmission rod through a transmission belt assembly. A rack is connected to the inner side of the protective frame above the first reciprocating lead screw, and the rack is meshed with the gear. A collection port is opened on the inner side of the protective frame, and a corrugated pipe is connected below the collection port. A sliding frame is connected to the bottom of the corrugated pipe, and a collection frame is slidably connected to the inner side of the sliding frame.

[0007] A sorting component is disposed inside the protective frame.

[0008] Preferably, the sorting component includes a mounting rod connected to the inner side of the protective frame, and a sliding frame sleeved on the mounting rod. The mounting rod is rotatably connected to a second reciprocating screw, and the second reciprocating screw is connected to a rotating rod through a bevel gear set. The bottom of the collecting frame is connected to a bottom roller, and a curved block is connected to the bottom of the inner side of the protective frame, with the curved block positioned between the two sets of bottom rollers. Protective doors are installed on both sides of the protective frame via hinges.

[0009] Preferably, the bottom of the cleaning frame and the outer side of the cleaning roller are provided with bristles, and the bristles of the cleaning roller are convex outwards. The inner side of the protective frame is connected with a shielding soft cloth, and the shielding soft cloth is located on one side of the first reciprocating screw.

[0010] Preferably, the inner side of the protective frame is provided with a sliding protrusion, and the sliding protrusion is slidably connected to the cleaning frame.

[0011] Preferably, a first bearing seat is connected above the protective frame support base, and the bearing seat is rotatably connected to the rotating rod; a second bearing seat is connected to the inner side of the cleaning frame, and the second bearing seat is rotatably connected to the transmission rod.

[0012] Preferably, a shielding scraper is provided below the cleaning frame, and the shielding scraper is located above the cleaning roller.

[0013] Preferably, the bottom inner side of the sliding frame is provided with a sloping protrusion, and there is a gap between the sloping protrusion and the bottom inner side of the protective frame. The bottom height of the sloping protrusion is lower than the height of the bottom roller shaft. A fixed door is provided on one side of the collection frame, and the fixed door is fitted to the collection frame.

[0014] Preferably, there are two sets of mounting rods, and a sliding rod is connected between the two sets of mounting rods, and the sliding rod is slidably connected to the sliding frame.

[0015] A gantry milling machine machining method includes the following steps:

[0016] S1: Place the workpiece on the main table of the gantry milling machine, fix it with detachable tooling, start the gantry to adjust the position of the milling head to process the workpiece, and the protective frame prevents debris from splashing out.

[0017] S2: After processing, disassemble the tooling, start the motor to drive the rotating rod to rotate, and the rotating rod drives the first reciprocating screw to rotate through the transmission belt, thereby driving the cleaning frame to reciprocate in the horizontal direction and push away the debris on the main table of the gantry milling machine;

[0018] S3: The cleaning frame drives the gear to rotate along the rack, the gear drives the transmission rod to rotate, and the transmission rod drives the cleaning roller to rotate synchronously, cleaning the debris in the countertop slide. The debris is pushed to the collection port and falls into the collection frames at both ends through the corrugated pipe.

[0019] S4: The rotating rod drives the second reciprocating screw through the bevel gear set, which drives the collection frame to move laterally back and forth, and works with the lifting structure to move up and down. The combined motion compacts and organizes the internal debris, increasing the storage capacity.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. In this invention, a motor drives a rotating rod to rotate, which in turn causes a cleaning frame to move horizontally. The horizontal movement of the cleaning frame on the main table of the gantry milling machine cleans debris from the table surface. During the rotation of the cleaning frame, cleaning rollers are also driven to rotate, which cleans debris from the table surface grooves, thus preventing debris from accumulating in the grooves and affecting the installation accuracy of the clamping. Furthermore, a collection frame is provided to collect the debris, facilitating subsequent unified processing.

[0022] 2. In this invention, the rotating rod rotates, which drives the second reciprocating screw to rotate. The rotation of the second reciprocating screw drives the sliding frame to reciprocate laterally. The reciprocating motion of the sliding frame drives the collecting frame to reciprocate laterally. During the reciprocating motion of the collecting frame, it also reciprocates vertically due to the interaction between the bottom roller and the curved block. During the movement of the collecting frame, the internal debris can be organized, reducing the accumulation of debris and making the gaps between the debris smaller, thereby enabling the collecting frame to collect more debris. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the inner structure of the protective frame of the present invention;

[0025] Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A;

[0026] Figure 4 This is a schematic diagram of the side structure of the protective frame of the present invention;

[0027] Figure 5 This is a schematic diagram of the front structure of the protective frame of the present invention;

[0028] Figure 6 For the present invention Figure 5 Enlarged structural diagram at point B;

[0029] Figure 7 This is a schematic diagram of the top surface structure of the protective frame of the present invention;

[0030] Figure 8 This is a schematic diagram of the inner structure of the cleaning frame of the present invention.

[0031] In the diagram: 1. Main body of the gantry milling machine; 2. Gantry frame; 3. Protective frame; 4. Motor; 5. Rotating rod; 6. First reciprocating lead screw; 7. Cleaning frame; 8. Transmission rod; 9. Gear; 10. Cleaning roller; 11. Rack; 12. Bellows; 13. Sliding frame; 14. Collection frame; 15. Organizing assembly; 151. Mounting rod; 152. Second reciprocating lead screw; 153. Bottom roller; 154. Curved block; 155. Protective door. Detailed Implementation

[0032] To further illustrate the technical means and effects adopted by the present invention in order to achieve the intended purpose, the following detailed description is provided in conjunction with the accompanying drawings and preferred embodiments, based on the specific implementation methods, structures, features and effects of the present invention.

[0033] Please see Figure 1 - Figure 8This invention provides a technical solution: a multi-station gantry milling machine, including a gantry milling machine body 1, gantry frames 2 installed on both sides of the gantry milling machine body 1, a protective frame 3 connected to the outside of the gantry milling machine body 1, and the protective frame 3 located inside the gantry frame 2. A support plate is connected inside the protective frame 3, and a motor 4 is installed above the support plate. A rotating rod 5 is connected to the output end of the motor 4. A first reciprocating screw 6 is rotatably connected to both sides inside the protective frame 3, and the first reciprocating screw 6 is connected to the rotating rod 5 through a transmission belt assembly. A cleaning frame 7 is sleeved on the first reciprocating screw 6, and the cleaning frame 7 is slidably connected to the protective frame 3. A transmission rod 8 is rotatably connected to the inside of the cleaning frame 7, and gears 9 are sleeved at both ends of the transmission rod 8. A cleaning roller 10 is rotatably connected to the bottom of the cleaning frame 7, and the inner shaft of the cleaning roller 10 is connected to the transmission rod 8 through a transmission belt assembly. A rack 11 is connected to the inner side of the protective frame 3 above the first reciprocating screw 6, and the rack 11 meshes with the gear 9. A collection port is opened on the inner side of the protective frame 3, and a bellows 12 is connected below the collection port. A sliding frame 13 is connected to the bottom of the bellows 12, and a collection frame 14 is slidably connected to the inner side of the sliding frame 13. The starting motor 4 drives the rotating rod 5 to rotate, and the rotating rod 5 drives the cleaning frame 7 to move horizontally. The horizontal movement of the cleaning frame 7 on the table of the gantry milling machine body 1 can clean the debris on the table. During the rotation of the cleaning frame 7, the cleaning roller 10 will rotate. The rotating cleaning roller 10 can clean the debris in the table slide groove, thereby avoiding the accumulation of debris in the slide groove and affecting the installation accuracy of the clamping. The collection frame 14 is set to collect the debris, which is convenient for subsequent unified processing.

[0034] Organizing component 15 is located inside the protective frame 3.

[0035] In one embodiment of the present invention, the sorting component 15 includes a mounting rod 151 connected to the inner side of the protective frame 3, and a sliding frame 13 sleeved on the mounting rod 151. The mounting rod 151 is rotatably connected to a second reciprocating screw 152, and the second reciprocating screw 152 is connected to the rotating rod 5 through a bevel gear set. The bottom of the collecting frame 14 is connected to a bottom roller 153, and a curved block 154 is connected to the bottom of the inner side of the protective frame 3, and the curved block 154 is disposed between two sets of bottom rollers 153. Protective doors 155 are installed on both sides of the protective frame 3 through hinges. The rotating rod 5 rotates... During the movement, the second reciprocating screw 152 will rotate, and the rotation of the second reciprocating screw 152 will drive the sliding frame 13 to perform lateral reciprocating motion. The lateral reciprocating motion of the sliding frame 13 will drive the collection frame 14 to perform lateral reciprocating motion. During the lateral reciprocating motion of the collection frame 14, it will also be affected by the cooperation of the bottom roller 153 and the curved block 154 to perform vertical reciprocating motion. During the movement of the collection frame 14, the internal debris can be sorted out, reducing the pile-up of debris and making the gap between the debris smaller, so that the collection frame 14 can collect more debris.

[0036] As one embodiment of the present invention, the bottom of the cleaning frame 7 and the outer side of the cleaning roller 10 are both provided with bristles, and the bristles of the cleaning roller 10 are convex outward. The inner side of the protective frame 3 is connected with a shielding soft cloth, and the shielding soft cloth is located on one side of the first reciprocating screw 6. By providing bristles, the debris on the operating table of the gantry milling machine body 1 can be cleaned better, and the shielding soft cloth can protect the slide groove of the protective frame 3, so as to prevent debris from splashing into the slide groove of the protective frame 3 and affecting the rotation of the first reciprocating screw 6.

[0037] As one embodiment of the present invention, a sliding protrusion is provided on the inner side of the protective frame 3, and the sliding protrusion is slidably connected to the cleaning frame 7. The sliding protrusion limits the cleaning frame 7 and improves the stability of the cleaning frame 7 during horizontal movement.

[0038] In one embodiment of the present invention, a first bearing seat is connected above the support base of the protective frame 3, and the bearing seat is rotatably connected to the rotating rod 5. A second bearing seat is connected to the inner side of the cleaning frame 7, and the second bearing seat is rotatably connected to the transmission rod 8. By setting the first bearing seat and the rotating rod 5 for limiting, the stability of the rotating rod 5 during rotation is improved. By setting the second bearing seat for limiting the transmission rod 8, the stability of the transmission rod 8 during rotation is improved.

[0039] As one embodiment of the present invention, a shielding scraper is provided below the cleaning frame 7 and the shielding scraper is located above the cleaning roller 10. By providing the shielding scraper, the debris above the bristles can be cleaned, and the situation where the debris comes into contact with the transmission belt and the cleaning roller 10 cannot rotate is avoided.

[0040] As one embodiment of the present invention, a sloping protrusion is provided on the bottom inner side of the sliding frame 13, and there is a gap between the sloping protrusion and the bottom inner side of the protective frame 3. The bottom height of the sloping protrusion is lower than the height of the bottom roller 153 shaft. A fixed door is provided on one side of the collection frame 14, and the fixed door fits into the collection frame 14. The collection frame 14 can be taken out from the sliding frame 13 by opening the fixed door. During the pulling process, the bottom roller 153 can be naturally lifted upward by the sloping protrusion, thereby improving the disassembly and installation efficiency of the collection frame 14.

[0041] In one embodiment of the present invention, two sets of mounting rods 151 are provided, and a sliding rod is connected between the two sets of mounting rods 151. The sliding rod is slidably connected to the sliding frame 13, and the sliding frame 13 is limited by the sliding rod to improve the stability of the sliding frame 13 during horizontal movement.

[0042] The processing method provided in this embodiment is described below, and specifically includes the following steps:

[0043] S1: Place the workpiece on the table of the main body 1 of the gantry milling machine, fix it with detachable tooling, start the gantry frame 2 to adjust the position of the milling head to process the workpiece, and the protective frame 3 prevents debris from splashing out.

[0044] S2: After processing, disassemble the tooling, start the motor 4 to drive the rotating rod 5 to rotate, and the rotating rod 5 drives the first reciprocating screw 6 to rotate through the transmission belt, thereby driving the cleaning frame 7 to reciprocate in the horizontal direction to push and sweep the debris on the table of the gantry milling machine body 1.

[0045] S3: The cleaning frame 7 drives the gear 9 to rotate along the rack 11, the gear 9 drives the transmission rod 8 to rotate, and the transmission rod 8 drives the cleaning roller 10 to rotate synchronously, cleaning the debris in the countertop slide. The debris is pushed to the collection port and falls into the collection frames 14 at both ends through the corrugated pipe 12.

[0046] S4: The rotating rod 5 drives the second reciprocating screw 152 through the bevel gear set, which drives the collection box 14 of the collection chamber to move laterally and reciprocally. It also works with the lifting structure to move up and down, so as to compact and sort the internal debris and increase the storage capacity.

[0047] Working principle: First, when a workpiece needs to be processed, the workpiece is placed on the table of the gantry milling machine body 1 and fixed with a detachable fixture. Then, the gantry 2 is started to adjust the milling head above the workpiece for processing. The protective frame 3 will block the debris generated during the workpiece processing to prevent the debris from splashing into the external environment. After the workpiece is processed, the fixture is removed and the motor 4 is started. The motor 4 drives the rotating rod 5 to rotate. Since the rotating rod 5 is connected to the first reciprocating screw 6 through a transmission belt, the rotation of the rotating rod 5 will drive the first reciprocating screw 6 to rotate synchronously. Since the cleaning frame 7 is sleeved in the rotating groove of the first reciprocating screw 6 and is slidably connected to the protective frame 3, the rotation of the first reciprocating screw 6 will drive the cleaning frame 7 to perform horizontal reciprocating motion. The horizontal movement of the cleaning frame 7 pushes the debris above the table of the gantry milling machine body 1 to move.

[0048] Secondly, during the horizontal movement of the cleaning frame 7, the gear 9 will move synchronously. Since the gear 9 is meshed with the rack 11, the gear 9 will rotate under the influence of the rack 11 during the horizontal movement. The rotation of the gear 9 will drive the transmission rod 8 to rotate. Since the transmission rod 8 is connected to the inner groove shaft of the cleaning roller 10 through the transmission belt assembly, the rotation of the transmission rod 8 will drive the cleaning roller 10 to rotate. During the rotation of the cleaning roller 10, the bristles will clean the debris in the sliding groove of the table of the gantry milling machine body 1. Both ends of the protective frame 3 are equipped with collection frames 14. The horizontal movement of the cleaning frame 7 and the cleaning roller 10 will push the debris to the top of the collection port. The debris will enter the collection frame 14 through the corrugated pipe 12 under the influence of gravity.

[0049] Finally, after the cleaning frame 7 moves to the collection port at the other end of the protective frame 3, it will return to its starting position. During this return motion, the cleaning frame 7 will again push the debris, causing it to enter the collection frame 14 in the initial section. Since the rotating rod 5 is connected to the second reciprocating screw 152 via a bevel gear set, the rotation of the rotating rod 5 will also drive the second reciprocating screw 152 to rotate. Furthermore, since the second reciprocating screw 152 is sleeved with the sliding frame 13, and the sliding frame 13 is slidably connected to the sliding rod, the rotation of the second reciprocating screw 152 will drive the collection frame 14 to reciprocate laterally. During the horizontal movement of the sliding frame 13, the collection frame 14 will reciprocate horizontally. The horizontal movement of the collection frame 14 will drive the bottom roller 153 to move horizontally. During the horizontal movement of the bottom roller 153, it will move above the curved block 154 and lift the collection frame 14, causing the collection frame 14 to move vertically. Therefore, the collection frame 14 will also reciprocate vertically during the reciprocating horizontal movement. Through the combined movement, the debris inside the collection frame 14 is sorted, reducing the situation of debris piling up alone and reducing the gaps between debris, so that more debris can be collected.

[0050] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A multi-station gantry milling machine, comprising a gantry milling machine body (1), characterized in that: The gantry milling machine body (1) is equipped with a gantry frame (2) on both sides of its exterior. A protective frame (3) is connected to the outside of the gantry milling machine body (1), and the protective frame (3) is located inside the gantry frame (2). A support plate is connected inside the protective frame (3), and a motor (4) is installed above the support plate. A rotating rod (5) is connected to the output end of the motor (4). A first reciprocating screw (6) is rotatably connected to both sides inside the protective frame (3), and the first reciprocating screw (6) is connected to the rotating rod (5) through a transmission belt assembly. A cleaning frame (7) is sleeved on the first reciprocating screw (6), and the cleaning frame (7) is slidably connected to the protective frame (3). (7) A transmission rod (8) is rotatably connected to the inside. Gears (9) are sleeved on both ends of the transmission rod (8). A cleaning roller (10) is rotatably connected to the bottom of the cleaning frame (7). The inner shaft of the cleaning roller (10) is connected to the transmission rod (8) through a transmission belt assembly. A rack (11) is connected to the inside of the protective frame (3) above the first reciprocating screw (6). The rack (11) meshes with the gear (9). A collection port is opened on the inside of the protective frame (3). A corrugated pipe (12) is connected below the collection port. A sliding frame (13) is connected to the bottom of the corrugated pipe (12). A collection frame (14) is slidably connected to the inside of the sliding frame (13). Organizing component (15) is disposed inside the protective frame (3).

2. The multi-station gantry milling machine according to claim 1, characterized in that: The sorting component (15) includes a mounting rod (151) connected to the inside of the protective frame (3), and a sliding frame (13) sleeved on the mounting rod (151). The mounting rod (151) is rotatably connected to a second reciprocating screw (152), and the second reciprocating screw (152) is connected to the rotating rod (5) through a bevel gear set. The bottom of the collection frame (14) is connected to a bottom roller (153). The bottom of the inside of the protective frame (3) is connected to a curved block (154), and the curved block (154) is located between two sets of bottom rollers (153). The protective frame (3) is fitted with protective doors (155) on both sides through hinges.

3. A multi-station gantry milling machine according to claim 2, characterized in that: The bottom of the cleaning frame (7) and the outside of the cleaning roller (10) are both provided with bristles, and the bristles of the cleaning roller (10) are convex outward. The inner side of the protective frame (3) is connected with a shielding soft cloth, and the shielding soft cloth is located on one side of the first reciprocating screw (6).

4. A multi-station gantry milling machine according to claim 3, characterized in that: The inner side of the protective frame (3) is provided with a sliding protrusion, and the sliding protrusion is slidably connected to the cleaning frame (7).

5. A multi-station gantry milling machine according to claim 4, characterized in that: The protective frame (3) is connected to a first bearing seat above the support base, and the bearing seat is rotatably connected to the rotating rod (5). The cleaning frame (7) is connected to a second bearing seat inside, and the second bearing seat is rotatably connected to the transmission rod (8).

6. A multi-station gantry milling machine according to claim 5, characterized in that: A shielding scraper is provided below the cleaning frame (7), and the shielding scraper is located above the cleaning roller (10).

7. A multi-station gantry milling machine according to claim 6, characterized in that: The sliding frame (13) has a sloping protrusion at the bottom inside, and there is a gap between the sloping protrusion and the bottom inside of the protective frame (3). The bottom height of the sloping protrusion is lower than the height of the bottom roller (153) shaft. The collection frame (14) has a fixed door on one side, and the fixed door is in contact with the collection frame (14).

8. A multi-station gantry milling machine according to claim 7, characterized in that: The mounting rod (151) is provided in two sets, and a sliding rod is connected between the two sets of mounting rods (151), and the sliding rod is slidably connected to the sliding frame (13).

9. A gantry milling machine machining method, characterized in that: The machining method applicable to the multi-station gantry milling machine according to any one of claims 1-8 includes the following steps: S1: Place the workpiece on the table of the main body (1) of the gantry milling machine, fix it with a detachable fixture, start the gantry frame (2) to adjust the position of the milling head to process the workpiece, and use the protective frame (3) to block the debris from splashing out. S2: After processing, disassemble the tooling, start the motor (4) to drive the rotating rod (5) to rotate, and the rotating rod (5) drives the first reciprocating screw (6) to rotate through the transmission belt, thereby driving the cleaning frame (7) to reciprocate in the horizontal direction and push and sweep the debris on the table of the gantry milling machine body (1). S3: The cleaning frame (7) drives the gear (9) to rotate along the rack (11), the gear (9) drives the transmission rod (8) to rotate, and the transmission rod (8) drives the cleaning roller (10) to rotate synchronously, cleaning the debris in the tabletop slide groove. The debris is pushed to the collection port and falls into the collection frames (14) at both ends through the corrugated pipe (12). S4: The rotating rod (5) drives the second reciprocating screw (152) through the bevel gear set, which drives the collection frame (14) to move horizontally and reciprocally, and cooperates with the lifting structure to achieve up and down movement, so as to compact and sort the internal debris and increase the storage capacity.

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