A gantry of a numerical control gantry machining center

Abstract

The utility model relates to numerical control gantry machining center technical field, and disclose a kind of gantry of numerical control gantry machining center, including base, the base top is provided with adjusting mechanism, the adjusting mechanism front side is provided with purification mechanism, the base top is fixedly connected with processing platform, the adjusting mechanism includes first hydraulic cylinder, the first hydraulic cylinder is fixedly connected in base right side, the first hydraulic cylinder left side is fixedly connected with moving seat, the moving seat inside is slidably connected with guide rod, the moving seat top is fixedly connected with gantry body, when using, by the adjusting mechanism being set, first hydraulic cylinder drives moving seat to slide along guide rod left and right, can drive gantry body whole transverse displacement, expand processing coverage, second hydraulic cylinder promotes connecting seat to slide along gantry body front and back, drive fixed frame and laser welding head realize front and back feeding, third hydraulic cylinder drives mounting seat to move along fixed frame up and down, adjusts welding head height.

Description

Technical Field

[0001] This utility model relates to the technical field of CNC gantry machining centers, specifically to a gantry frame for a CNC gantry machining center. Background Technology

[0002] As a high-precision and high-efficiency heavy-duty machining equipment, CNC gantry machining centers are widely used in aerospace, automobile manufacturing, heavy machinery, shipbuilding and other fields. They are mainly used for laser welding, milling, drilling and other machining processes of large plate, box-shaped workpieces and complex structural parts. Among them, the gantry is the core load-bearing and motion execution component of the CNC gantry machining center. Its movement stability, the adjustment range of the machining parts and the adaptability to the working environment directly determine the machining accuracy, production efficiency and operational safety of the equipment, and are the key links affecting the machining quality.

[0003] Most existing gantry cranes use a single hydraulic cylinder or screw to drive the overall lateral displacement of the gantry crane, which easily leads to concentrated force on one side during movement, causing the gantry crane body to tilt and sway, thereby reducing the positioning accuracy of the processed parts. When the gantry crane is equipped with components such as laser welding heads and plasma cutting heads, it will generate a large amount of processing fumes containing metal oxide particles and harmful gases. Existing equipment generally suffers from a lack of or inefficiency in fume treatment capabilities, resulting in harmful fumes spreading throughout the work area.

[0004] According to the description in the patent announcement of a gantry frame for a CNC gantry machining center (authorization announcement number: CN211916093U), the gantry frame of the CNC gantry machining center includes "columns, racks, etc." to realize machining work.

[0005] Regarding the above description, the applicant believes the following issues exist:

[0006] The gantry of this CNC gantry machining center uses columns, racks, etc. to perform machining operations. When in use, the height of this gantry is adjusted by gears and racks, but it does not have a self-locking effect and cannot move the gantry left and right, which affects the versatility of machining. Therefore, this gantry needs to be improved. Utility Model Content

[0007] The purpose of this utility model is to provide a gantry frame for a CNC gantry machining center to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a gantry frame for a CNC gantry machining center, including a base, an adjustment mechanism on the top of the base, a purification mechanism on the front side of the adjustment mechanism, and a machining table fixedly connected to the top of the base;

[0009] The adjustment mechanism includes a first hydraulic cylinder, which is fixedly connected to the right side of the base. A movable seat is fixedly connected to the left side of the first hydraulic cylinder. A guide rod is slidably connected inside the movable seat. A gantry frame body is fixedly connected to the top of the movable seat. A second hydraulic cylinder is fixedly connected to the top of the front surface of the gantry frame body. A connecting seat is fixedly connected to the rear side of the second hydraulic cylinder. A fixed frame is fixedly connected to the left side of the connecting seat. A third hydraulic cylinder is fixedly connected to the top of the fixed frame. A mounting seat is fixedly connected to the bottom of the third hydraulic cylinder. A laser welding head is fixedly connected to the bottom left side of the mounting seat. A fixed frame is fixedly connected to the front side of the mounting seat. An air suction hood is fixedly connected inside the fixed frame. A hose is fixedly connected to the top of the air suction hood. A limit ring is slidably connected to the periphery of the hose. A connector is fixedly connected to the bottom of the front end of the hose. The connector is located inside the purification mechanism.

[0010] Preferably, the guide rod is fixedly connected to the inner side of the front end of the base, the connecting seat is slidably connected to the inside of the gantry frame body, and the mounting seat is slidably connected to the inside of the fixed frame, so as to ensure the stability of the moving seat through the guide rod.

[0011] Preferably, the limiting ring is fixedly connected to the top left side of the gantry frame body, and the laser welding head is located on the top of the processing table, so as to ensure the stability of the hose through the limiting ring.

[0012] Preferably, the first hydraulic cylinder, the movable seat, and the guide rod are provided in two sets, and are symmetrically distributed on the front and rear sides of the base, so as to ensure the stability of the movement of the gantry frame body by providing two sets.

[0013] Preferably, the purification mechanism includes a support platform, which is fixedly connected to the front side of the gantry frame body. A purification box is fixedly connected to the top of the support platform. A connecting pipe is fixedly connected to the bottom front side of the purification box. A fan is fixedly connected to the front side of the connecting pipe. An installation frame is slidably connected inside the purification box. A sealing frame is fixedly connected to the left side of the installation frame. A fixing pin is threadedly connected inside the sealing frame. A filter cartridge is slidably connected inside the installation frame. The filter cartridge is located at the bottom of the connector. An activated carbon frame is slidably connected inside the installation frame.

[0014] Preferably, the top of the purification box is fixedly connected to the periphery of the connector, the fan is fixedly connected to the front side of the top of the support platform, the top of the filter cartridge is in contact with the bottom of the connector, and the activated carbon frame is located at the bottom of the filter cartridge, so as to facilitate the filtration of welding fumes through the filter cartridge.

[0015] Preferably, the fixing pin passes through the interior of the purification box, the sealing frame is slidably connected to the left outer perimeter of the purification box, and the activated carbon frame has a feeding port at the top, which is rectangular, so as to ensure the stability of the sealing frame by fixing the pin.

[0016] Compared with the prior art, this utility model provides a gantry frame for a CNC gantry machining center, which has the following advantages:

[0017] 1. The gantry of this CNC gantry machining center, through its adjustable mechanism, features a first hydraulic cylinder that drives a movable seat to slide left and right along a guide rod, thereby driving the gantry body to move laterally and expanding the processing coverage. A second hydraulic cylinder pushes a connecting seat to slide back and forth along the gantry body, causing the fixed frame and laser welding head to feed forward and backward. A third hydraulic cylinder drives a mounting seat to move up and down along the fixed frame, adjusting the height of the welding head. The coordinated operation of multiple hydraulic cylinders, combined with the guiding and limiting functions of the guide rod and gantry body, allows for a wide adjustment range of the laser welding head, adapting to the processing needs of workpieces of different sizes and shapes. This improves the accuracy of processing positioning and ensures the stability of processing quality. The suction hood on the fixed frame is close to the laser welding head, allowing for close-range capture of welding fumes. The two sets of first hydraulic cylinders, movable seats, and guide rods symmetrically distributed on the front and rear sides of the base ensure balanced force distribution on the gantry body during lateral movement, preventing tilting or swaying caused by unilateral force and improving the stability of movement.

[0018] 2. The gantry frame of this CNC gantry machining center features a purification mechanism. The suction hood on the fixed frame is close to the laser welding head, allowing for close-range capture of welding fumes. A fan, through connecting pipes, hoses, and connectors, forms a negative pressure suction channel, rapidly drawing the fumes into the purification chamber. Inside the purification chamber, the filter cartridges first filter particulate matter from the fumes, and the activated carbon frame below adsorbs and purifies harmful gases. This dual purification effect reduces the emission of harmful substances from the fumes, preventing environmental pollution and minimizing harm to the respiratory tract of operators. The mounting frame slides into the purification chamber and is secured by a sealing frame and fixing pins. Unscrewing the fixing pins allows the mounting frame to be pulled out, facilitating the replacement or cleaning of the internal filter cartridges and activated carbon frame. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the adjustment mechanism.

[0023] Figure 4 This is a schematic diagram of the top structure of the movable seat;

[0024] Figure 5 This is a schematic diagram of the left side structure of the connector;

[0025] Figure 6 This is a schematic diagram of the purification mechanism.

[0026] Figure 7 This is a schematic diagram of the front structure of the cleanroom.

[0027] Figure 8 This is a cross-sectional view of the cleanroom.

[0028] In the diagram: 1. Base; 2. Adjustment mechanism; 3. Purification mechanism; 4. Processing table; 21. First hydraulic cylinder; 22. Moving seat; 23. Gantry frame body; 24. Guide rod; 25. Second hydraulic cylinder; 26. Connecting seat; 27. Fixing frame; 28. Third hydraulic cylinder; 29. ​​Mounting seat; 291. Fixing bracket; 292. Suction hood; 293. Laser welding head; 294. Hoses; 295. Limiting ring; 296. Connecting head; 31. Support platform; 32. Purification box; 33. Sealing frame; 34. Connecting pipe; 35. Fan; 36. Fixing pin; 37. Mounting frame; 38. Filter cartridge; 39. Activated carbon frame. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] This utility model provides the following technical solution:

[0032] Example 1

[0033] Please see Figure 1-8This utility model provides a technical solution: a gantry frame for a CNC gantry machining center, including a base 1, an adjustment mechanism 2 on the top of the base 1, a purification mechanism 3 on the front side of the adjustment mechanism 2, and a processing table 4 fixedly connected to the top of the base 1.

[0034] The adjustment mechanism 2 includes a first hydraulic cylinder 21, which is fixedly connected to the right side of the base 1. A movable seat 22 is fixedly connected to the left side of the first hydraulic cylinder 21. A guide rod 24 is slidably connected inside the movable seat 22. A gantry frame body 23 is fixedly connected to the top of the movable seat 22. A second hydraulic cylinder 25 is fixedly connected to the top of the front surface of the gantry frame body 23. A connecting seat 26 is fixedly connected to the rear side of the second hydraulic cylinder 25. A fixed frame 27 is fixedly connected to the left side of the connecting seat 26. A third hydraulic cylinder 28 is fixedly connected to the top of the fixed frame 27. A mounting seat 29 is fixedly connected to the bottom of the third hydraulic cylinder 28. A laser welding head 293 is fixedly connected to the bottom left side of the mounting seat 29. A fixed frame 291 is fixedly connected to the front side of the mounting seat 29. An air suction hood 292 is fixedly connected inside the fixed frame 291. A hose 294 is fixedly connected to the top of the air suction hood 292. A limit ring 295 is slidably connected to the periphery of the hose 294. A connector 296 is fixedly connected to the bottom of the front end of the hose 294. The connector 296 is located inside the purification mechanism 3.

[0035] The guide rod 24 is fixedly connected to the inner side of the front end of the base 1, the connecting seat 26 is slidably connected to the inside of the gantry frame body 23, and the mounting seat 29 is slidably connected to the inside of the fixed frame 27, so as to ensure the stability of the movement of the movable seat 22 through the guide rod 24.

[0036] The limiting ring 295 is fixedly connected to the top left side of the gantry frame body 23, and the laser welding head 293 is located on the top of the processing table 4, so that the limiting ring 295 can be used to ensure the stability of the hose 294.

[0037] Two sets of the first hydraulic cylinder 21, the movable seat 22, and the guide rod 24 are provided and symmetrically distributed on the front and rear sides of the base 1. By setting two sets, the stability of the movement of the gantry frame body 23 can be ensured.

[0038] Example 2

[0039] Please see Figure 1-8 Furthermore, based on Embodiment 1, the purification mechanism 3 further includes a support platform 31, which is fixedly connected to the front side of the gantry frame body 23. A purification box 32 is fixedly connected to the top of the support platform 31. A connecting pipe 34 is fixedly connected to the bottom front side of the purification box 32. A fan 35 is fixedly connected to the front side of the connecting pipe 34. An installation frame 37 is slidably connected inside the purification box 32. A sealing frame 33 is fixedly connected to the left side of the installation frame 37. A fixing pin 36 is threadedly connected inside the sealing frame 33. A filter cartridge 38 is slidably connected inside the installation frame 37. The filter cartridge 38 is located at the bottom of the connector 296. An activated carbon frame 39 is slidably connected inside the installation frame 37.

[0040] The top of the purification box 32 is fixedly connected to the periphery of the connector 296, the fan 35 is fixedly connected to the front side of the top of the support platform 31, the top of the filter cartridge 38 is in contact with the bottom of the connector 296, and the activated carbon frame 39 is located at the bottom of the filter cartridge 38 to facilitate the filtration of welding fumes through the filter cartridge 38.

[0041] The fixing pin 36 runs through the inside of the purification box 32, and the sealing frame 33 is slidably connected to the outer left side of the purification box 32. The activated carbon frame 39 has a feeding port on the top, which is rectangular, so that the sealing frame 33 can be stabilized by the fixing pin 36.

[0042] In actual operation, when this device is used and welding of metal plates is required, first place the two plates on the top of the processing table 4 and make the positions of the two plates to be welded overlap each other, and then fix the two plates with external fixing equipment.

[0043] The first hydraulic cylinder 21 drives the movable seat 22 to slide left and right along the guide rod 24, which can drive the overall lateral displacement of the gantry frame body 23 and expand the processing coverage area. The second hydraulic cylinder 25 pushes the connecting seat 26 to slide back and forth along the gantry frame body 23, which drives the fixed frame 27 and the laser welding head 293 to achieve forward and backward feeding. The third hydraulic cylinder 28 drives the mounting seat 29 to move up and down along the fixed frame 27 to adjust the height of the welding head. The cooperation of multiple hydraulic cylinders, combined with the guiding and limiting functions of the guide rod 24, the gantry frame body 23 and other components, makes the laser welding head 293 have a wide adjustment range, which can adapt to the processing needs of workpieces of different sizes and shapes, improve the processing positioning accuracy, and ensure the stability of processing quality. The two sets of first hydraulic cylinders 21, movable seats 22 and guide rods 24 symmetrically distributed on the front and rear sides of the base 1 make the gantry frame body 23 bear force evenly when moving laterally, avoid tilting or shaking caused by force on one side, and improve the stability of movement.

[0044] When the laser welding head 293 is located at the welding point of the two plates, welding can be performed on the two plates. The suction hood 292 on the fixed frame 291 is close to the laser welding head 293 and can capture the welding fumes at close range. The fan 35 forms a negative pressure suction channel through the connecting pipe 34, the hose 294 and the connector 296 to quickly suck the fumes into the purification box 32. The filter cartridge 38 in the purification box 32 can first filter the particulate matter in the fumes, and the activated carbon frame 39 below can then adsorb and purify the harmful gases. The dual purification effect reduces the emission of harmful substances in the fumes, which not only avoids environmental pollution, but also reduces the harm of fumes to the respiratory tract of operators. The mounting frame 37 is slidably connected to the purification box 32 and is fixed by the sealing frame 33 and the fixing pin 36. The mounting frame 37 can be pulled out by unscrewing the fixing pin 36, which makes it convenient to replace or clean the internal filter cartridge 38 and activated carbon frame 39.

[0045] After processing, activated carbon can be added through the feeding port at the top of the activated carbon frame 39. After adding and replacing, the mounting frame 37 can be slidably connected to the inside of the purification box 32. After installation, the top of the filter cartridge 38 will contact the bottom of the connector 296. At this time, the sealing frame 33 and the purification box 32 can be fixed by the fixing pin 36 to ensure the stability of the mounting frame 37.

[0046] In this application, all the first hydraulic cylinder 21, the second hydraulic cylinder 25, the third hydraulic cylinder 28, the blower 35, and the laser welding head 293 need to be connected to the same PLC controller near the gantry frame body 23 to ensure automated operation and parameter adjustment of the equipment. The PLC controller is existing technology, and those skilled in the art are well aware of its operation method, so it will not be described in detail here.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A gantry frame for a CNC gantry machining center, comprising a base (1), characterized in that: An adjustment mechanism (2) is provided on the top of the base (1), a purification mechanism (3) is provided on the front side of the adjustment mechanism (2), and a processing table (4) is fixedly connected to the top of the base (1). The adjustment mechanism (2) includes a first hydraulic cylinder (21), which is fixedly connected to the right side of the base (1). A movable seat (22) is fixedly connected to the left side of the first hydraulic cylinder (21). A guide rod (24) is slidably connected inside the movable seat (22). A gantry frame body (23) is fixedly connected to the top of the movable seat (22). A second hydraulic cylinder (25) is fixedly connected to the top of the front surface of the gantry frame body (23). A connecting seat (26) is fixedly connected to the rear side of the second hydraulic cylinder (25). A fixed frame (27) is fixedly connected to the left side of the connecting seat (26). A third hydraulic cylinder (28) is fixedly connected to the top of the fixed frame (27). The bottom of the third hydraulic cylinder (28) is fixedly connected to a mounting base (29). A laser welding head (293) is fixedly connected to the left side of the bottom of the mounting base (29). A fixing frame (291) is fixedly connected to the front side of the mounting base (29). An air suction hood (292) is fixedly connected inside the fixing frame (291). A hose (294) is fixedly connected to the top of the air suction hood (292). A limit ring (295) is slidably connected to the periphery of the hose (294). A connector (296) is fixedly connected to the bottom of the front end of the hose (294). The connector (296) is located inside the purification mechanism (3).

2. The gantry frame of a CNC gantry machining center according to claim 1, characterized in that: The guide rod (24) is fixedly connected to the inner side of the front end of the base (1), the connecting seat (26) is slidably connected to the inside of the gantry frame body (23), and the mounting seat (29) is slidably connected to the inside of the fixed frame (27).

3. The gantry frame of a CNC gantry machining center according to claim 1, characterized in that: The limiting ring (295) is fixedly connected to the top left side of the gantry frame body (23), and the laser welding head (293) is located on the top of the processing table (4).

4. The gantry frame of a CNC gantry machining center according to claim 1, characterized in that: The first hydraulic cylinder (21), the movable seat (22) and the guide rod (24) are provided in two sets and are symmetrically distributed on the front and rear sides of the base (1).

5. The gantry frame of a CNC gantry machining center according to claim 1, characterized in that: The purification mechanism (3) includes a support platform (31), which is fixedly connected to the front side of the gantry frame body (23). A purification box (32) is fixedly connected to the top of the support platform (31). A connecting pipe (34) is fixedly connected to the bottom front side of the purification box (32). A fan (35) is fixedly connected to the front side of the connecting pipe (34). An installation frame (37) is slidably connected inside the purification box (32). A sealing frame (33) is fixedly connected to the left side of the installation frame (37). A fixing pin (36) is threaded inside the sealing frame (33). A filter cartridge (38) is slidably connected inside the installation frame (37). The filter cartridge (38) is located at the bottom of the connector (296). An activated carbon frame (39) is slidably connected inside the installation frame (37).

6. The gantry frame of a CNC gantry machining center according to claim 5, characterized in that: The top of the purification box (32) is fixedly connected to the periphery of the connector (296), the fan (35) is fixedly connected to the front side of the top of the support platform (31), the top of the filter cartridge (38) is in contact with the bottom of the connector (296), and the activated carbon frame (39) is located at the bottom of the filter cartridge (38).

7. The gantry frame of a CNC gantry machining center according to claim 5, characterized in that: The fixing pin (36) passes through the inside of the purification box (32), the sealing frame (33) is slidably connected to the outer left side of the purification box (32), and the activated carbon frame (39) has a feeding port on the top and is rectangular.

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