Nozzle manufacturing mold for plasma cutting gun

Abstract

The utility model discloses a nozzle manufacturing mold for a plasma cutting gun, and belongs to the technical field of molds. The device mainly comprises a base; the lower die assembly is arranged on the base; the upper die assembly is arranged above the base, and the upper die assembly is provided with a top plate suitable for installation and an upper die plate suitable for die assembly; the lubricating assembly is arranged on the upper die assembly and comprises two sets of moving rods, and the moving rods penetrate through the top plate; the oil cylinder is mounted at the bottom of the moving rod; the bristles are circumferentially arranged at the bottom of the oil cylinder; the two sets of reset springs are arranged between the top of the oil cylinder and the bottom of the top plate, and the movable rod is sleeved with the reset springs. According to the nozzle manufacturing mold for the plasma cutting gun, through the arrangement of the lubricating assembly, lubricating oil can be smeared on the mold cavity every time punching is conducted, manual operation is not needed, and therefore the production efficiency is improved, and the effect of automatically smearing the lubricating oil is achieved.

Description

Technical Field

[0001] This application relates to the field of mold technology, specifically to a mold for manufacturing a nozzle for a plasma cutting gun. Background Technology

[0002] A plasma cutting gun is a processing tool that uses the heat of a high-temperature plasma arc to locally melt the metal at the cut of a workpiece, and uses the momentum of high-speed plasma to eject the molten metal to form a kerf. The structure of a plasma cutting gun typically includes a nozzle, an electrode, a gas supply system, etc.

[0003] To ensure that the size, shape, and quality of the nozzle meet the design requirements, molds are required during the manufacturing process.

[0004] In the prior art, when manufacturing nozzles, the sheet metal to be stamped is usually placed between the upper and lower dies of the mold. Then, lubricating oil is applied to the surface or cavity of the mold. The upper and lower dies are then closed to stretch and deform the sheet metal through stamping, so that it initially forms the required nozzle shell. With the help of lubricating oil, the formed nozzle will not get stuck in the mold cavity. Then, the nozzle can be removed and placed into the subsequent process.

[0005] However, in the existing technology, lubricating oil is usually applied manually. In the case of large-scale production, the efficiency of manual lubricating oil application is low, which leads to a slowdown in production progress and increases the labor intensity of workers. Therefore, the application of lubricating oil needs to be automated.

[0006] Therefore, it is necessary to provide a mold for manufacturing the nozzle of a plasma cutting gun to solve the above problems.

[0007] It should be noted that the above information disclosed in this Background section is only for understanding the background technology of the present application concept, and therefore, it may contain information that does not constitute prior art. Summary of the Invention

[0008] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide a nozzle manufacturing mold for a plasma cutting gun that achieves the effect of automatically applying lubricating oil.

[0009] The technical solution adopted by this application to solve its technical problem is: a mold for manufacturing a nozzle for a plasma cutting gun, including a base; a lower mold assembly disposed on the base; an upper mold assembly disposed above the base, the upper mold assembly having a top plate suitable for installation and an upper template suitable for mold closing; a lubrication assembly disposed on the upper mold assembly, the lubrication assembly including: two sets of moving rods, the moving rods penetrating the top plate; an oil cylinder, the oil cylinder being installed at the bottom of the moving rods; at least two sets of bristles, the bristles being arranged circumferentially at the bottom of the oil cylinder; and two sets of return springs, the return springs being disposed between the top of the oil cylinder and the bottom of the top plate, the return springs being sleeved on the outside of the moving rods.

[0010] Furthermore, a mounting bracket is installed on the top of the top plate, an oil tank is installed on the mounting bracket, a sealing cover is installed on the oil tank, an oil outlet pipe is installed at the bottom of the oil tank, and a solenoid valve is installed on the oil outlet pipe.

[0011] Furthermore, the oil drum is equipped with an oil guide pipe, and the inside of the oil drum has a cavity. One end of the brush extends into the cavity, and one end of the oil guide pipe extends into the cavity. A sliding groove is provided through the top plate, and the oil outlet pipe is located inside the sliding groove.

[0012] Furthermore, the lower mold assembly includes a base plate mounted on the base, with at least two sets of vertical rods running through the base plate, and a support plate mounted on the top of the vertical rods.

[0013] Furthermore, at least two sets of buffer springs are provided between the support plate and the base plate. The buffer springs are sleeved on the outside of the vertical rod. A lower punch is installed on the top of the base plate. The lower punch is located below the support plate. A through groove is opened through the support plate.

[0014] Furthermore, the upper mold assembly includes at least two sets of connecting pillars disposed on the top of the top plate, at least two sets of connecting rods installed on the bottom of the top plate, the upper mold plate being installed on the bottom of the connecting rods, a mold cavity being provided through the upper mold plate, two sets of guide pillars being installed on the bottom of the top plate, and two sets of guide sleeves being installed on the base, with the guide pillars slidably disposed inside the guide sleeves.

[0015] The beneficial effects of this application are: the plasma cutting gun nozzle manufacturing mold provided by this application, through the setting of the lubrication component, allows the mold cavity to be lubricated with lubricating oil each time it is stamped, without the need for manual operation, thereby improving production efficiency and achieving the effect of automatic lubrication.

[0016] In addition to the above-described purposes, features and advantages, the present application also has other purposes, features and advantages. The present application will be further described in detail below with reference to the drawings. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0018] In the attached diagram:

[0019] Figure 1 This is an overall schematic diagram of a manufacturing mold for a plasma cutting gun nozzle according to this application;

[0020] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0021] Figure 3 for Figure 1 Another sectional view of the whole;

[0022] Figure 4 for Figure 3 Enlarged view of point B in the middle;

[0023] The following are the labeling elements in the figure:

[0024] 1. Base;

[0025] 2. Upper mold assembly; 21. Connecting pillar; 22. Top plate; 23. Connecting rod; 24. Upper template; 25. Mold cavity; 26. Guide pillar;

[0026] 3. Lower mold assembly; 31. Guide sleeve; 32. Base plate; 33. Lower punch; 34. Vertical rod; 35. Buffer spring; 36. Bearing plate;

[0027] 4. Lubrication components; 41. Sealing cap; 42. Oil tank; 43. Mounting bracket; 44. Solenoid valve; 45. Oil outlet pipe; 46. Moving rod; 47. Return spring; 48. Oil guide pipe; 49. Oil cylinder; 410. Brush bristles; 411. Slide groove. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

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

[0030] like Figure 1 As shown, this application provides a nozzle manufacturing mold for a plasma cutting gun, including a base 1, and a lower mold assembly 3 disposed on the base 1. The lower mold assembly 3 is used to place the plate to be processed, specifically:

[0031] The lower mold assembly 3 includes a base plate 32 fixedly installed on the base 1, and multiple sets of vertical rods 34 are provided through the base plate 32 so that the vertical rods 34 can slide up and down on the base plate 32 under the action of external force. Meanwhile, a bearing plate 36 is fixedly installed on the top of the vertical rods 34. The bearing plate 36 is used to place the sheet material, so that when the vertical rods 34 move, the bearing plate 36 moves and the sheet material moves synchronously.

[0032] Meanwhile, multiple sets of buffer springs 35 are provided between the bearing plate 36 and the bottom plate 32. The buffer springs 35 are sleeved on the outside of the vertical rod 34 so that when the bearing plate 36 moves, the buffer springs 35 are compressed and the bearing plate 36 is reset under the action of the buffer springs 35 after the external force disappears.

[0033] Meanwhile, a lower punch 33 is fixedly installed on the top of the base plate 32. The lower punch 33 is located below the support plate 36 and has a through groove through the support plate 36 so that when the support plate 36 moves the plate, the punch passes through the through groove and cooperates with the subsequent equipment to squeeze the plate so that the plate gets the required shape.

[0034] Meanwhile, an upper mold assembly 2 is provided above the lower mold assembly 3. The upper mold assembly 2 is used to perform a mold closing operation with the lower mold assembly 3 to stretch the sheet metal.

[0035] like Figure 1 As shown, the upper mold assembly 2 includes a top plate 22 disposed above the support plate 36. Multiple sets of connecting columns 21 are fixedly installed on the top of the top plate 22 to connect the connecting columns 21 to the drive equipment on the production line, thereby driving the top plate 22 to rise or fall under the drive of the drive equipment.

[0036] Meanwhile, multiple sets of connecting rods 23 are fixedly installed at the bottom of the top plate 22. An upper template 24 is fixedly installed at the bottom of the connecting rod 23. A mold cavity 25 is provided through the upper template 24. The size of the mold cavity 25 is larger than the size of the lower punch 33. When the top plate 22 moves, the upper template 24 is moved synchronously through the connecting rods 23, and then the upper template 24 is closed with the lower mold assembly 3 to press and stretch the sheet metal to obtain the required shape.

[0037] Meanwhile, two sets of guide pillars 26 are fixedly installed at the bottom of the top plate 22, and two sets of guide sleeves 31 are fixedly installed on the base 1. The guide pillars 26 are slidably disposed inside the guide sleeves, so that when the upper mold assembly 2 and the lower mold assembly 3 are closed, the guide pillars 26 move into the inside of the guide sleeves to restrict the mold closing direction.

[0038] In summary, during use, the board is placed on the support plate 36, and the driving equipment controls the top plate 22 to descend, thereby driving the upper template 24 to descend through the connecting rod 23. At the same time, the guide column 26 is inserted into the guide sleeve 31 for guidance.

[0039] Then the upper template 24 first contacts the plate, and as the upper template 24 continues to move, it synchronously drives the support plate 36 to move downward. At this time, the buffer spring 35 is compressed. As the upper template 24 continues to move, the lower punch 33 gradually extends out of the support plate 36, pushes the plate into the mold cavity 25, stretches and deforms it, and then completes the forming of the nozzle.

[0040] Meanwhile, a lubrication component 4 is provided on the upper mold assembly 2, which is used for the lubrication operation of the mold cavity 25;

[0041] like Figures 1-4 As shown, the lubrication assembly 4 includes two sets of moving rods 46 that pass through the top plate 22, and an oil cylinder 49 is fixedly installed at one end of the moving rod 46. The oil cylinder 49 is adapted to contact the plate entering the mold cavity 25 during the forming process of the nozzle, and move upward under the action of the plate.

[0042] Meanwhile, the bottom of the oil cylinder 49 is provided with multiple sets of bristles 410, which are coated with lubricating oil. The bristles 410 are arranged circumferentially at the bottom of the oil cylinder 49 to form a circle, so that the bristles 410 fit against the inner wall of the mold cavity 25. This allows the bristles 410 to move synchronously when the oil cylinder 49 moves, so as to apply lubricating oil to the inner wall of the mold cavity 25.

[0043] To replenish the lubricating oil on the bristles 410, a mounting bracket 43 is fixedly installed on the top of the top plate 22. An oil tank 42 is fixedly installed on the mounting bracket 43 to store the lubricating oil. A sealing cap 41 is provided on the oil tank 42 to seal it. At the same time, an oil outlet pipe 45 is fixedly installed at the bottom of the oil tank 42. A solenoid valve 44 is provided on the oil outlet pipe 45 to control the opening and closing of the oil outlet pipe 45.

[0044] One end of the oil outlet pipe 45 is inserted into the interior of the top plate 22. At the same time, a cavity (not shown in the figure) is opened inside the oil cylinder 49, and an oil guide pipe 48 is provided on the oil cylinder 49. The oil guide pipe 48 and the oil outlet pipe 45 are on the same axis, and one end of the oil guide pipe 48 extends into the interior of the cavity. One end of the bristles 410 extends into the cavity.

[0045] Continue to refer Figure 4 A groove 411 adapted to the oil guide pipe 48 is provided through the top plate 22. The oil outlet pipe 45 is located inside the groove 411. It should be noted that in the initial state, the oil cylinder 49 is located inside the mold cavity 25, and the diameter of the oil guide pipe 48 is larger than the diameter of the oil outlet pipe 45, so that when the oil cylinder 49 moves upward, it will drive the oil guide pipe 48 to move upward simultaneously until it enters the interior of the groove 411 and is fitted outside the oil outlet pipe 45. At this time, the solenoid valve 44 can be opened to allow the lubricating oil in the oil tank 42 to be introduced into the cavity for replenishment and to wet the brush bristles 410 again.

[0046] Meanwhile, two sets of return springs 47 are provided between the top of the oil cylinder 49 and the bottom of the top plate 22. The return springs 47 are sleeved on the outside of the moving rod 46, so that when the oil cylinder 49 moves the moving rod 46 upward, it is compressed. After the nozzle is formed, when the upper mold assembly 2 is reset, the oil cylinder 49 is reset by the restoring force of the return springs 47.

[0047] In summary, during the nozzle forming process, the oil cylinder 49 contacts the plate entering the mold cavity 25 and moves upward under the action of the plate, thereby driving the brush bristles 410 with lubricating oil to apply oil to the inner wall of the mold cavity 25.

[0048] At this time, the moving rod 46 moves upward synchronously and squeezes the return spring 47. When the upper mold assembly 2 and the lower mold assembly 3 are fully closed, the plate is stamped into the nozzle shell on the bearing plate 36. At the same time, the oil guide pipe 48 on the oil cylinder 49 is sleeved on the outside of the oil outlet pipe 45. At this time, the oil outlet pipe 45 can be opened by the solenoid valve 44 to introduce the lubricating oil in the oil tank 42 into the oil cylinder 49 for replenishment, so that the bristles 410 are wetted again.

[0049] After stamping is completed, the upper die is reset. At this time, the support plate 36 is reset under the action of the buffer spring 35, and at the same time, it drives the stamped nozzle to move upward to prevent it from getting stuck on the lower punch 33. After the support plate 36 is reset, as the upper die assembly 2 continues to reset, the upper die assembly 2 gradually separates from the support plate 36. At this time, the oil cylinder 49 is reset by the restoring force of the reset spring 47. When the oil cylinder 49 is reset, it can push the stamped nozzle inside the mold cavity 25 out of the mold cavity 25, making demolding smoother and further preventing it from getting stuck.

[0050] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A mold for manufacturing a nozzle for a plasma cutting gun, characterized in that: include: Base (1); The lower mold assembly (3) is disposed on the base (1); The upper mold assembly (2) is disposed above the base (1) and has a top plate (22) suitable for installation and an upper mold plate (24) suitable for mold closing. A lubrication assembly (4) is disposed on the upper mold assembly (2), and the lubrication assembly (4) includes: Two sets of movable rods (46) pass through the top plate (22); An oil cylinder (49) is mounted on the bottom of the movable rod (46); At least two sets of bristles (410) are arranged circumferentially at the bottom of the oil cylinder (49); Two sets of return springs (47) are provided between the top of the oil cylinder (49) and the bottom of the top plate (22), and the return springs (47) are sleeved on the outside of the moving rod (46).

2. The mold for manufacturing a nozzle for a plasma cutting gun according to claim 1, characterized in that: A mounting bracket (43) is installed on the top of the top plate (22), an oil tank (42) is installed on the mounting bracket (43), a sealing cover (41) is provided on the oil tank (42), an oil outlet pipe (45) is provided at the bottom of the oil tank (42), and a solenoid valve (44) is provided on the oil outlet pipe (45).

3. The mold for manufacturing a nozzle for a plasma cutting gun according to claim 2, characterized in that: An oil guide pipe (48) is provided on the oil cylinder (49). A cavity is opened inside the oil cylinder (49). One end of the brush bristles (410) extends into the cavity. One end of the oil guide pipe (48) extends into the cavity. A sliding groove (411) is provided through the top plate (22). Part of the oil outlet pipe (45) is located inside the sliding groove (411).

4. A mold for manufacturing a nozzle for a plasma cutting gun according to claim 1, characterized in that: The lower mold assembly (3) includes a base plate (32) mounted on the base (1), and at least two sets of vertical rods (34) are provided through the base plate (32), with a bearing plate (36) mounted on the top of the vertical rods (34).

5. A mold for manufacturing a nozzle for a plasma cutting gun according to claim 4, characterized in that: At least two sets of buffer springs (35) are provided between the support plate (36) and the base plate (32). The buffer springs (35) are sleeved on the outside of the vertical rod (34). A lower punch (33) is installed on the top of the base plate (32). The lower punch (33) is located below the support plate (36). A through groove is provided on the support plate (36).

6. A mold for manufacturing a nozzle for a plasma cutting gun according to claim 1, characterized in that: The upper mold assembly (2) includes at least two sets of connecting columns (21) disposed on the top of the top plate (22), at least two sets of connecting rods (23) installed on the bottom of the top plate (22), the upper mold plate (24) is installed on the bottom of the connecting rods (23), a mold cavity (25) is provided through the upper mold plate (24), two sets of guide columns (26) are installed on the bottom of the top plate (22), two sets of guide sleeves (31) are installed on the base (1), and the guide columns (26) are slidably disposed inside the guide sleeves (31).

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