Press machine forming device

Abstract

The utility model discloses a press machine forming device which comprises a die frame and two vertical clamps matched with a pipe fitting to be machined, a holding cavity is formed in the die frame, and a feeding port communicated with the holding cavity is formed in the side, where the pipe fitting to be machined is inserted, of the die frame. Inserting ports matched with the two vertical clamps are formed in the positions, on the two sides of the feeding port, of the top of the mold frame, a jacking forming assembly is arranged on the side, opposite to the feeding port, of the mold frame, and holding assemblies matched with the two vertical clamps are arranged at the positions, on the two ends of the feeding port, of the mold frame; the enclasping assembly pushes the two vertical clamps to enclasp the to-be-machined pipe fitting, and then the jacking forming assembly conducts jacking to complete machining of the to-be-machined pipe fitting. The two clamps symmetrical to the steel pipe are directly adopted to directly clamp the steel pipe to be machined, component force of parallel pipe fittings is not generated, waste of thrust generated by the enclasping oil cylinder is avoided, the enclasping oil cylinder does not need large power, and therefore cost is reduced, and energy consumption is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of presses, in particular to a forming device for a press. Background Art

[0002] A press can perform preloading stamping on steel pipes to facilitate the connection of steel pipe parts, making the integration degree higher after forming by the press compared with other methods such as nut fixing or welding, and having better performance. The forming principle of the press for steel pipes is to use a fixture to hold the steel pipe tightly, and then use a cylinder or an oil cylinder to push the forming die towards the pipe orifice of the steel pipe to complete stamping forming.

[0003] Currently, the adopted holding / clamping method mostly uses a structural form with a taper on the outer shape of 4-piece holding pieces. Its advantage is that the concentricity during processing is relatively good, but the disadvantage is that due to the tapered outer shape of the piece holding pieces, while generating a vertical clamping force to clamp the pipe fittings, a component force parallel to the pipe fittings is also generated. Thus, compared with vertical clamping, there is waste, that is, when the same clamping force is required, the clamping oil cylinder requires more stroke and higher force, about more than twice the force of vertical clamping. As a result, higher design parameters in multiples are required for the overall hydraulic power system, the strength of the oil cylinder, and the mold and fixture, thereby bringing high risks, high costs, and high failure rates. Subsequently, problems such as high energy consumption, high power, and high noise of the entire system may also occur. Summary of the Utility Model

[0004] In order to overcome the defects of the prior art, the technical problem to be solved by the utility model is to provide a forming device for a press, which can perform stamping processing on pipe fittings more energy-efficiently and efficiently, and improve the stability and working efficiency during the pressurized forming of pipe fittings.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A forming device for a press provided by the utility model includes a die frame and two vertical fixtures that cooperate with the pipe fittings to be processed. A holding cavity is arranged inside the die frame. The die frame is provided with a feed port communicating with the holding cavity on one side where the pipe fittings to be processed are inserted. The top of the die frame is provided with insertion ports that cooperate with the two vertical fixtures on both sides of the feed port. The die frame is provided with a jacking and forming assembly on the side opposite to the feed port. The die frame is provided with a holding assembly that cooperates with the two vertical fixtures at both ends of the feed port. During pressurized forming, the holding assembly pushes the two vertical fixtures to hold the pipe fittings to be processed tightly, and then the jacking and forming assembly performs jacking to complete the processing of the pipe fittings to be processed. The pushing direction of the holding assembly is perpendicular to the axis of the feed port.

[0007] On one side of the two vertical clamps for clamping the pipe to be processed, there are mutually cooperating positioning parts fixedly provided; at the bottom of the insertion port, there is also a wear-resistant plate, and the wear-resistant plate is detachably connected to the die frame.

[0008] Preferably, the technical solution of the present utility model is that the clamping assembly includes a clamping oil cylinder and a clamping seat. A clamping head is provided at the power output end of the clamping oil cylinder. A sliding groove for sliding connection with the clamping head is provided on the vertical clamp. A clamping hole for cooperating with the clamping head is provided on the die frame. The axis of the clamping hole is perpendicular to the axis of the feeding port. The clamping seat is fixedly connected to the die frame, and the clamping oil cylinder is installed on the clamping seat.

[0009] Preferably, the technical solution of the present utility model is that the jacking and forming assembly includes a jacking oil cylinder and a forming die. A jacking head is provided at the power output end of the jacking oil cylinder. The jacking head is detachably connected to the forming die. A jacking hole for cooperating with the forming die is provided on the die frame. The jacking hole is arranged coaxially with the feeding port; there is also a jacking seat. The jacking seat is fixedly connected to the die frame, and the jacking oil cylinder is installed on the jacking seat.

[0010] Preferably, the technical solution of the present utility model is that the forming die includes a die head and a die core. The die head is arranged coaxially with the feeding port. A fixing part is provided at one end of the die head close to the jacking oil cylinder. A U-shaped notch for cooperating with the fixing part is provided on the jacking head. During jacking, the fixing part is inserted into the U-shaped notch. The die core is annular. The outer ring wall of the die core abuts against the inner wall of the jacking hole, and the inner ring wall of the die core is fixedly connected to the die head.

[0011] The beneficial effects of the present utility model are as follows:

[0012] Compared with the traditional 4-piece clamping method, the present utility model adopts a 2-piece direct clamping method, that is, directly uses two clamps symmetrically arranged on the steel pipe to directly clamp the steel pipe to be processed, without generating a splitting force for parallel pipe fittings, and will not waste the thrust generated by the clamping oil cylinder. In this way, when processing the same pipe fittings to be processed, the clamping oil cylinder does not require a large power. The required pressure for the clamping oil cylinder and the jacking oil cylinder during operation is only 1 / 2 of that of similar equipment, achieving greater energy-saving control for the system power, improving work efficiency, reducing the failure rate of the equipment, and further reducing the design parameters for the entire hydraulic power system, oil cylinders, molds, and clamps, etc., thereby reducing costs and saving energy consumption; and in this case, by setting the die frame, the vertical clamp and the forming die are respectively designed to be detachable from the clamping head and the jacking head, making it more flexible in actual application and replacement, and also facilitating maintenance and repair. Description of the Drawings

[0013] Figure 1It is an explosion schematic diagram of a press forming device provided in the specific embodiment of the present utility model;

[0014] Figure 2 It is an explosion schematic diagram of a press forming device from the rear view perspective provided in the specific embodiment of the present utility model;

[0015] Figure 3 It is an explosion schematic diagram of a press forming device from the bottom perspective provided in the specific embodiment of the present utility model;

[0016] Figure 4 It is a front view perspective structural schematic diagram of a press forming device provided in the specific embodiment of the present utility model;

[0017] Figure 5 It is a rear view perspective structural schematic diagram of a press forming device provided in the specific embodiment of the present utility model;

[0018] Figure 6 It is a bottom view perspective structural schematic diagram of a press forming device provided in the specific embodiment of the present utility model;

[0019] Figure 7 It is a front view perspective structural schematic diagram of a mold frame provided in the specific embodiment of the present utility model;

[0020] Figure 8 It is Figure 7 the cross-sectional schematic diagram of a-a in

[0021] Figure 9 It is a rear view perspective structural schematic diagram of a mold frame provided in the specific embodiment of the present utility model;

[0022] Figure 10 It is a structural schematic diagram of a vertical fixture provided in the specific embodiment of the present utility model;

[0023] Figure 11 It is another perspective structural schematic diagram of a vertical fixture provided in the specific embodiment of the present utility model;

[0024] In the figure:

[0025] 1. Mold frame; 2. Vertical fixture; 11. Clamping cavity; 12. Feeding port; 13. Insertion interface; 3. Lifting and forming assembly; 4. Clamping assembly; 41. Clamping oil cylinder; 42. Clamping seat; 411. Clamping head; 21. Sliding groove; 14. Clamping hole; 31. Lifting oil cylinder; 32. Forming die; 311. Lifting head; 15. Lifting hole; 33. Lifting seat; 321. Die head; 322. Die core; 3211. Fixed part; 3111. U-shaped notch; 22. Positioning part; 16. Wear-resistant plate. Specific embodiment

[0026] The technical solution of the present utility model will be further described below in conjunction with the accompanying drawings and through specific embodiments.

[0027] As shown in the figure, a press forming device includes a die frame 1 and two vertical clamps 2 that cooperate with the pipe fittings to be processed. A clamping cavity 11 is provided inside the die frame 1. The die frame 1 is provided with a feed port 12 communicating with the clamping cavity 11 on the side where the pipe fittings to be processed are inserted. On the top of the die frame 1, insertion ports 13 that cooperate with the two vertical clamps 2 are opened on both sides of the feed port 12. During operation, the two vertical clamps 2 are inserted into the clamping cavity 11 to cooperate with the feed port 12. Then, in order to prevent the two vertical clamps 2 from falling out from the bottom of the insertion ports 13, wear-resistant plates 16 are provided at the bottoms of the insertion ports 13. The wear-resistant plates 16 are detachably connected to the die frame 1. The die frame 1 is provided with a jacking and forming assembly 3 on the side opposite to the feed port 12. The die frame 1 is provided with a clamping assembly 4 that cooperates with the two vertical clamps 2 at both ends of the feed port 12. During pressure forming, the clamping assembly 4 pushes the two vertical clamps 2 to clamp the pipe fittings to be processed. Then, the jacking and forming assembly 3 jacks up to complete the processing of the pipe fittings to be processed. The pushing direction of the clamping assembly 4 is perpendicular to the axis of the feed port 12. At the same time, the two vertical clamps 2 are fixedly provided with mutually cooperating positioning parts 22 on the side clamping the pipe material. In this way, when the clamping assembly 4 pushes the two vertical clamps 2, the pipe fittings to be processed can be clamped stably and well. At the same time, under the combined action of the clamping assembly 4 and the jacking and forming assembly 3, good concentricity is maintained.

[0028] Preferably, the clamping assembly 4 includes a clamping oil cylinder 41 and a clamping seat 42. A clamping head 411 is provided at the power output end of the clamping oil cylinder 41. The vertical clamp 2 is provided with a sliding groove 21 that slidably connects with the clamping head 411. The die frame 1 is provided with a clamping hole 14 that cooperates with the clamping head 411. The axis of the clamping hole 14 is perpendicular to the axis of the feed port 12. The clamping seat 42 is fixedly connected to the die frame 1, and the clamping oil cylinder 41 is installed on the clamping seat 42.

[0029] Preferably, the jacking and forming assembly 3 includes a jacking oil cylinder 31 and a forming die 32. A jacking head 311 is provided at the power output end of the jacking oil cylinder 31. The jacking head 311 and the forming die 32 are detachably connected. The die frame 1 is provided with a jacking hole 15 that cooperates with the forming die 32. The jacking hole 15 is coaxially arranged with the feeding port 12. It further includes a jacking seat 33. The jacking seat 33 is fixedly connected to the die frame 1, and the jacking oil cylinder 31 is installed on the jacking seat 33. Thus, through the jacking hole 15, it is ensured that when the jacking oil cylinder 31 jacks the forming die 32 towards the pipe fitting to be processed for pressure forming, good concentricity can be maintained. Further, the forming die 32 includes a die head 321 and a die core 322. The die head 321 is coaxially arranged with the feeding port 12. A fixing portion 3211 is provided at one end of the die head 321 close to the jacking oil cylinder 31. A U-shaped notch 3111 that cooperates with the fixing portion 3211 is provided on the jacking head 311. Thus, during the assembly process, the fixing portion 3211 can be inserted into the U-shaped notch 3111, and then jacking is performed. During jacking, the fixing portion 3211 is inserted into the U-shaped notch 3111. The die core 322 is annular, the outer ring wall of the die core 322 abuts against the inner wall of the jacking hole 15, and the inner ring wall of the die core 322 is fixedly connected to the die head 321.

[0030] The present utility model is described through preferred embodiments. Those skilled in the art know that without departing from the spirit and scope of the present utility model, various changes or equivalent replacements can be made to these features and embodiments. The present utility model is not limited by the specific embodiments disclosed herein, and other embodiments falling within the scope of the claims of this application all belong to the protection scope of the present utility model.

Claims

1. A press forming device, characterized in that: The invention comprises a mold frame (1) and two vertical clamps (2) which cooperate with the pipe to be processed. The mold frame (1) is provided with a clamping cavity (11). The mold frame (1) is provided with a feed port (12) which is connected to the clamping cavity (11) on the side where the pipe to be processed is inserted. The top of the mold frame (1) is provided with plugging interfaces (13) which cooperate with the two vertical clamps (2) on both sides of the feed port (12). The mold frame (1) is provided with a lifting molding component (3) on the side opposite to the feed port (12). The mold frame (1) is provided with clamping components (4) which cooperate with the two vertical clamps (2) at both ends of the feed port (12). During pressure molding, the clamping component (4) pushes the two vertical clamps (2) to clamp the pipe to be processed, and then the lifting molding component (3) lifts the pipe to be processed to complete the processing. The pushing direction of the clamping component (4) is perpendicular to the axis of the feed port (12).

2. A press forming device according to claim 1, characterized in that: The clamping assembly (4) comprises a clamping cylinder (41) and a clamping seat (42); a clamping head (411) is provided at the power output end of the clamping cylinder (41); the vertical clamp (2) is provided with a slide groove (21) slidably connected to the clamping head (411); the mold frame (1) is provided with a clamping hole (14) matching the clamping head (411); the axis of the clamping hole (14) is perpendicular to the axis of the feed port (12); the clamping seat (42) and the mold frame (1) are fixedly connected; and the clamping cylinder (41) is mounted on the clamping seat (42).

3. A press forming device according to claim 1, characterized in that: The jacking and forming assembly (3) comprises a jacking cylinder (31) and a forming mold (32); a jacking head (311) is provided at the power output end of the jacking cylinder (31); the jacking head (311) and the forming mold (32) are detachably connected; the mold frame (1) is provided with a jacking hole (15) that matches the forming mold (32); the jacking hole (15) is coaxially arranged with the feed port (12); and the jacking seat (33) is also included; the jacking seat (33) and the mold frame (1) are fixedly connected; and the jacking cylinder (31) is installed on the jacking seat (33).

4. A press forming device according to claim 3, characterized in that: The molding die (32) comprises a die head (321) and a die core (322); the die head (321) is coaxially arranged with the feed port (12); a fixing portion (3211) is arranged at one end of the die head (321) close to the lifting cylinder (31); a U-shaped notch (3111) cooperating with the fixing portion (3211) is arranged on the lifting head (311); during lifting, the fixing portion (3211) is inserted into the U-shaped notch (3111); the die core (322) is annular; an outer annular wall of the die core (322) abuts against an inner wall of the lifting hole (15); and an inner annular wall of the die core (322) is fixedly connected to the die head (321).

5. A press forming device according to claim 2, characterized in that: The two vertical clamps (2) are fixedly provided with mutually matching positioning parts (22) on one side for clamping the pipe material to be processed.

6. A press forming device according to claim 5, characterized in that: A wear-resistant plate (16) is also provided at the bottom of the plug-in port (13), and the wear-resistant plate (16) and the mold frame (1) are detachably connected.

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