Stable and rapid punching die for pipe fittings

Abstract

The utility model relates to the technical field of machining, and discloses a pipe fitting stable and rapid punching die which comprises a machine table, a punching head is fixedly connected to the center of the lower side of a hydraulic punching table, a first spring is fixedly connected to the position, close to the edge, of the lower side of the hydraulic punching table, and an upper die limiting plate is fixedly connected to the lower end of the first spring. Transmission racks are fixedly connected to the lower ends of the left side and the right side of the hydraulic punching table, and one-way ratchet wheels are connected to the tooth sides of the lower ends of the transmission racks in an engaged mode. By arranging the ratchet wheel feeding device, after punching of a machine table is completed, a pipe fitting can be pushed by a certain distance, the next punching position can be rapidly determined, it can be guaranteed that punching positions are equally spaced, the rapid positioning function is achieved, the procedure of manually positioning the machining position is avoided, the upper die limiting plate can make contact with the lower die and the pipe fitting in advance during punching, and the punching efficiency is improved. The pipe fitting is limited in the grooves of the upper die and the lower die, and position deviation of the pipe fitting during punching is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of machining, in particular to a stable and rapid punching die for pipe fittings. Background Technique

[0002] In the existing technology, for the punching of pipe fittings, a punching die is often used to process the pipe fittings. The punching die usually consists of components such as a die seat, an upper die, a punch, and a hydraulic press table, which can achieve precise cutting of the pipe fittings, improve the processing quality of products, and realize mass production.

[0003] During the punching process of pipe fittings, it is necessary to position the punching position. Usually, manual use of measuring tools to position the punching position or other auxiliary positioning methods are adopted, but the purpose of rapid punching cannot be achieved, and manual assistance is required. Moreover, when punching pipe fittings, the contact area between the pipe fittings and the upper and lower dies is small, and the upper and lower dies may not be able to clamp and fix the pipe fittings well, resulting in the offset of the pipe fittings and thus producing defective products. Summary of the Utility Model

[0004] Aiming at the problems of unable to quickly position the punching position and the pipe fittings being unable to be stable, the utility model provides a stable and rapid punching die for pipe fittings.

[0005] The utility model adopts the following technical solutions to achieve the technical purpose:

[0006] A stable and rapid punching die for pipe fittings, including a machine table. The upper end of the front side of the machine table is movably connected with a hydraulic punching table. The center of the lower side of the hydraulic punching table is fixedly connected with a punching head. A first spring is fixedly connected near the edge of the lower side of the hydraulic punching table. The lower end of the first spring is fixedly connected with an upper die limiting plate. There is an upper die groove on the lower side of the upper die limiting plate. Connecting columns are fixedly connected near the edge of the upper side of the upper die limiting plate. The outer sides of the connecting columns are sleeved inside the first spring. Fixed blocks are fixedly connected to the lower ends of the left and right sides of the hydraulic punching table. A transmission rack is fixedly connected to the bottom left side of the fixed block. The lower end tooth side of the transmission rack is meshed and connected with a one-way ratchet wheel. A motion steering mechanism is fixedly connected inside the one-way ratchet wheel. A conveying component is fixedly connected to the front end of the motion steering mechanism. A material table is fixedly connected to the lower end of the front side of the machine table. Support plates are fixedly connected to the upper ends of the left and right sides of the material table. A lower template is fixedly connected to the top of the material table. There is a lower die sliding groove on the upper surface of the lower template. A connecting block is fixedly connected to the center of the inner bottom end of the hydraulic punching table. Pop-up mechanisms are arranged on both sides of the connecting block. The one-way ratchet wheel includes a fixed ring sleeve.

[0007] Further, a pin shaft is arranged inside the fixed collar. A claw is movably connected to the outer side of the pin shaft. A chute sleeve is sleeved on the outer side of the fixed collar. A roller is slidably connected to the inside of the chute sleeve. An external tooth is fixedly connected to the outer end of the roller. An internal tooth is fixedly connected to the inside of the external tooth. The ejection mechanism includes a second spring. Second springs and limiting rods are fixedly connected to both sides of the connecting block. The second spring is sleeved on the outer side of the limiting rod. A movable plate is fixedly connected to the outer end of the second spring. The outer end of the limiting rod penetrates through and is movably connected to the inside of the movable plate. A movable bolt is fixedly connected to the bottom end of the outer side of the movable plate. A cylinder is fixedly connected to the inner wall side of the hydraulic punching table. The cylinder is arranged on the outer side of the movable plate. The telescopic rod of the cylinder pushes the movable plate to move, thereby driving the movement of the movable bolt. The end of the movable bolt will move out of the clamping groove.

[0008] Further, the motion steering mechanism includes a first connecting shaft. Protective shells are fixedly connected to both sides of the machine table. A first transmission gear is fixedly connected to the inner end of the first connecting shaft. A second transmission gear is meshed and connected to the outer side of the first transmission gear. A second connecting shaft is fixedly connected to the inside of the second transmission gear. The inner ends of the first connecting shaft and the second connecting shaft are movably connected to the inner side of the protective shell, and the steering torque of the first connecting shaft can be converted into a reverse rotation torque.

[0009] Further, the conveying assembly includes a first conveyor wheel and a second conveyor wheel. Semi-circular grooves are arranged on the outer sides of the first conveyor wheel and the second conveyor wheel. The two conveyor wheels can push the workpiece into the machine table.

[0010] Further, the connecting column includes a column body. A clamping groove is arranged at a position slightly below the middle of the column body. The movable bolt is inserted into the inside of the clamping groove. The connecting column is fixed and drives the upper die limiting plate to remain stationary.

[0011] Further, the bottom of the connecting column is fixedly connected to the top of the upper die limiting plate. The connecting column penetrates through and is movably connected to the bottom of the hydraulic punching table. The connecting column can slide up and down at the bottom of the punching table, driving the upper die limiting plate to move up and down.

[0012] Further, the first connecting shaft and the second connecting shaft penetrate through and are rotatably connected to the inside of the support plate. The support plate can fix the outer end of the motion steering mechanism.

[0013] In summary, the main beneficial effects of the present utility model are as follows:

[0014] This guiding tube punching device can, by setting a ratchet feeding device, push the pipe fitting a certain distance after the punching on the machine table is completed, quickly determine the next punching position, ensure that the punching positions are equally spaced, realize the function of rapid positioning, avoid the process of manually positioning the processing position, reduce the processing error, and save the preparation time before processing.

[0015] This guiding tube punching device can, by setting an upper die limiting plate, contact the lower die and the pipe fitting in advance during punching, limit the pipe fitting in the grooves of the upper and lower dies, prevent the pipe fitting from shifting in position during punching, and by setting a pop-up mechanism, the upper die limiting plate can be separated from the lower die and the pipe fitting in time after punching is completed, avoiding the situation where the ratchet feeding device cannot push the pipe fitting, and shortening the workpiece processing time. Brief Description of the Drawings

[0016] Figure 1 is the three-dimensional structure schematic diagram of the present utility model;

[0017] Figure 2 is the internal schematic diagram of the conveying structure of the present utility model;

[0018] Figure 3 is the partial enlarged structure schematic diagram of the present utility model;

[0019] Figure 4 is the internal structure schematic diagram of the present utility model;

[0020] Figure 5 is the partial enlarged structure schematic diagram of the present utility model;

[0021] Figure 6 is the exploded view of the one-way ratchet of the present utility model;

[0022] Figure 7 is the front view of the one-way ratchet of the present utility model;

[0023] Figure 8 is the structural schematic diagram of the connecting column of the present utility model;

[0024] Figure 9 is the structural schematic diagram of the conveying wheel of the present utility model.

[0025] Reference numerals: 1, machine platform; 2, hydraulic punching platform; 3, punching head; 4, first spring; 5, connecting column; 501, column body; 502, card slot; 6, upper die limiting plate; 7, upper die groove; 8, fixing block; 9, transmission rack; 10, one-way ratchet; 1001, fixed ring sleeve; 1002, external teeth; 1003, internal teeth; 1004, roller; 1005, chute sleeve; 1006, pin shaft; 1007, claw; 11, motion steering mechanism; 1101, first connecting shaft; 1102, first transmission gear; 1103, protective shell; 1104, second transmission gear; 1105, second connecting shaft; 12, conveying assembly; 1201, first conveyor wheel; 1202, second conveyor wheel; 13, support plate; 14, material platform; 15, lower template; 16, lower die chute; 17, connecting block; 18, ejecting mechanism; 1801, second spring; 1802, limiting rod; 1803, movable plate; 1804, movable plug; 1805, cylinder. Detailed implementation mode

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Please refer to Figures 1 - 9 As shown in the figure, a stable and fast punching die for pipe fittings includes a machine platform 1. The upper end of the front side of the machine platform 1 is movably connected with a hydraulic punching platform 2. The center of the lower side of the hydraulic punching platform 2 is fixedly connected with a punching head 3. The lower side of the hydraulic punching platform 2 near the edge is fixedly connected with a first spring 4. The lower end of the first spring 4 is fixedly connected with an upper die limiting plate 6. An upper die groove 7 is arranged on the lower side of the upper die limiting plate 6. The upper side of the upper die limiting plate 6 near the edge is fixedly connected with a connecting column 5. The outer side of the connecting column 5 is sleeved inside the first spring 4. The left and right sides of the lower end of the hydraulic punching platform 2 are fixedly connected with fixing blocks 8. The bottom left side of the fixing block 8 is fixedly connected with a transmission rack 9. The lower end tooth side of the transmission rack 9 is meshed with a one-way ratchet 10. A motion steering mechanism 11 is fixedly connected inside the one-way ratchet 10. The front end of the motion steering mechanism 11 is fixedly connected with a conveying assembly 12. The lower end of the front side of the machine platform 1 is fixedly connected with a material platform 14. The left and right sides of the upper end of the material platform 14 are fixedly connected with support plates 13. The top of the material platform 14 is fixedly connected with a lower template 15. A lower die chute 16 is arranged on the upper surface of the lower template 15. The center of the inner bottom end of the hydraulic punching platform 2 is fixedly connected with a connecting block 17. Ejecting mechanisms 18 are arranged on both sides of the connecting block 17.

[0028] Please refer to Figures 1 - 9As shown in the figure, the one-way ratchet 10 includes a fixed collar 1001. Inside the fixed collar 1001, there is a pin shaft 1006. A pawl 1007 is movably connected to the outside of the pin shaft 1006. A chute sleeve 1005 is sleeved on the outside of the fixed collar 1001. A roller 1004 is slidably connected inside the chute sleeve 1005. An external gear 1002 is fixedly connected to the outer end of the roller 1004. An internal gear 1003 is fixedly connected inside the external gear 1002, which can convert the up-and-down movement of the machine table 1 into a one-way horizontal movement.

[0029] Please refer to Figures 1 - 9 As shown in the figure, the ejection mechanism 18 includes a second spring 1801. On both sides of the connecting block 17, a second spring 1801 and a limiting rod 1802 are fixedly connected. The second spring 1801 is sleeved on the outside of the limiting rod 1802. The outer end of the second spring 1801 is fixedly connected to a movable plate 1803. The outer end of the limiting rod 1802 penetrates and is movably connected to the inside of the movable plate 1803. A movable latch 1804 is fixedly connected to the bottom end on the outside of the movable plate 1803. A cylinder 1805 is fixedly connected to the inner wall side of the hydraulic punching table 2. The cylinder 1805 is arranged on the outside of the movable plate 1803.

[0030] Please refer to Figures 1 - 9 As shown in the figure, the motion steering mechanism 11 includes a first connecting shaft 1101. On both sides of the machine table 1, protective shells 1103 are fixedly connected. The inner end of the first connecting shaft 1101 is fixedly connected to a first transmission gear 1102. A second transmission gear 1104 is meshed with the outside of the first transmission gear 1102. A second connecting shaft 1105 is fixedly connected inside the second transmission gear 1104. The inner ends of the first connecting shaft 1101 and the second connecting shaft 1105 are movably connected to the inside of the protective shell 1103.

[0031] Please refer to Figures 1 - 9 As shown in the figure, the conveying assembly 12 includes a first conveyor wheel 1201 and a second conveyor wheel 1202. Semicircular grooves are arranged on the outside of the first conveyor wheel 1201 and the second conveyor wheel 1202. The upper and lower wheels cooperate to step-transport the workpiece.

[0032] Please refer to Figures 1 - 9 As shown in the figure, the connecting column 5 includes a column body 501. A card slot 502 is arranged at a position slightly below the middle of the column body 501. The movable latch 1804 is inserted into the inside of the card slot 502, which can fix the connecting column and keep it relatively stationary when rising.

[0033] Please refer to Figures 1 - 9 As shown in the figure, the bottom of the connecting column 5 is fixedly connected to the top of the upper die limiting plate 6. The connecting column 5 penetrates and is movably connected to the bottom of the hydraulic punching table 2.

[0034] Please refer to Figures 1 - 9As shown, the first connecting shaft 1101 and the second connecting shaft 1105 penetrate and are rotatably connected to the inside of the support plate 13, playing a supporting role for the connecting shafts.

[0035] Working principle: Please refer to Figures 1 - 9 As shown, the pipe fitting to be processed is placed into the circular gap between the first transmission wheel 1201 and the second transmission wheel 1202. The hydraulic punching table 2 is started, and the hydraulic punching table 2 begins to descend. Synchronously, the descent of the hydraulic punching table 2 will drive the fixed block 8 and the transmission rack 9 to descend. Since the transmission rack 9 and the one-way ratchet 10 are meshed with each other, the descent of the transmission rack 9 will drive the counterclockwise rotation of the one-way ratchet 10. As a result, the first connecting shaft 1101 remains stationary, causing the first transmission wheel 1201 and the second transmission wheel 1202 to also remain stationary. As the hydraulic punching table 2 continues to descend, the upper die limiting plate 6 begins to contact and press the lower template 15 and the workpiece to be processed. The first spring 4 begins to be compressed and the connecting column 5 moves upward. The punching head 3 passes through the through hole on the upper die limiting plate 6 to extrude and punch the workpiece. At this time, the card slot 502 has moved into the hydraulic punching table 2. The movable pin 1804 moves away from the connecting block 17 under the elastic force of the second spring 1801, and the end of the movable pin 1804 will be inserted into the card slot 502. The hydraulic punching table 2 begins to lift upward. Since the movable pin 1804 hinders the downward movement of the column body 501 and simultaneously limits the position of the upper die limiting plate 6, the upper die limiting plate 6 will rise with the hydraulic punching table 2 at this time and will not continue to press the upper surface of the lower template 15 and the workpiece;

[0036] As the hydraulic punching platform 2 rises, the transmission rack 9 will also rise synchronously, and the outer teeth 1002 meshing with the transmission rack 9 will also rotate clockwise, and the back of the inner teeth 1003 will conflict with the back of the claw 1007, so that the claw 1007 cannot rotate around the pin 1006, thereby driving the fixed ring sleeve 1001 and the first connecting shaft 1101 to rotate together. The rotation of the first connecting shaft 1101 drives the first transmission wheel 1201 to rotate clockwise. At the same time, the rotation of the first connecting shaft 1101 drives the first transmission gear 1102 to rotate, and the first transmission gear 1102 will drive the second transmission gear 1104 meshing therewith. The rotation of the second transmission gear 1104 will cause the second connecting shaft 1105 and the second transmission wheel 1202 to rotate synchronously. Rotating counterclockwise, the two transmission wheels work together to push the pipe along the lower die slide 16 toward the other end of the machine 1. When the hydraulic punch 2 rises to the predetermined point, the cylinder 1805 is started, and the telescopic rod of the cylinder 1805 will act on the movable plate 1803. The movable plate 1803 will move toward the direction close to the connecting block 17 and compress the second spring 1801. Synchronously, the movable latch 1804 will also be driven, and the end of the movable latch 1804 will move out of the slot 502. Then, the first spring 4 will reset, pushing the connecting column 5 and the upper die limit plate 6 to move downward and restore the extended state. The hydraulic punch 2 continues to move downward and punch on the workpiece. The hydraulic punch 2 rises, and the workpiece moves a distance toward the other end and punches. The cycle is repeated until the workpiece is processed.

Claims

1. A stable and fast punching die for pipe fittings, comprising a machine platform (1), characterized in that: The front upper end of the machine platform (1) is movably connected to a hydraulic punch (2); the lower side of the hydraulic punch (2) is fixedly connected to a first spring (4) near the edge; the lower end of the first spring (4) is fixedly connected to an upper die limit plate (6); the upper side of the upper die limit plate (6) is fixedly connected to a connecting column (5) near the edge; the lower ends of the left and right sides of the hydraulic punch (2) are fixedly connected to fixed blocks (8); the bottom left side of the fixed block (8) is fixedly connected to a transmission rack (9); the lower end of the transmission rack (9) is fixedly connected to a plurality of connecting rods (5). A one-way ratchet (10) is meshedly connected to the tooth side, a motion steering mechanism (11) is fixedly connected inside the one-way ratchet (10), a conveying assembly (12) is fixedly connected to the front end of the motion steering mechanism (11), a material table (14) is fixedly connected to the front lower end of the machine table (1), a lower template (15) is fixedly connected to the top of the material table (14), a connecting block (17) is fixedly connected to the center of the inner bottom end of the hydraulic punching table (2), and ejection mechanisms (18) are provided on both sides of the connecting block (17); The one-way ratchet (10) comprises a fixed ring sleeve (1001), a pin shaft (1006) is arranged inside the fixed ring sleeve (1001), a claw (1007) is movably connected to the outer side of the pin shaft (1006), a slide sleeve (1005) is sleeved on the outer side of the fixed ring sleeve (1001), a roller (1004) is slidably connected inside the slide sleeve (1005), an outer end of the roller (1004) is fixedly connected to an external tooth (1002), and an internal tooth (1003) is fixedly connected inside the external tooth (1002); The ejection mechanism (18) comprises a second spring (1801), the second spring (1801) and a limiting rod (1802) are fixedly connected to both sides of the connection block (17), the interior of the second spring (1801) is sleeved on the exterior of the limiting rod (1802), the outer end of the second spring (1801) is fixedly connected to a movable plate (1803), the outer end of the limiting rod (1802) passes through and is movably connected to the interior of the movable plate (1803), the outer bottom end of the movable plate (1803) is fixedly connected to a movable latch (1804), and the inner wall side of the hydraulic punch (2) is fixedly connected to a cylinder (1805), and the cylinder (1805) is arranged on the outer side of the movable plate (1803).

2. A stable and fast punching die for pipe fittings according to claim 1, characterized in that: Place The motion steering mechanism (11) comprises a first connecting shaft (1101), and protective shells (1103) are fixedly connected to both sides of the machine platform (1); the inner end of the first connecting shaft (1101) is fixedly connected to a first transmission gear (1102), the outer side of the first transmission gear (1102) is meshingly connected to a second transmission gear (1104), the interior of the second transmission gear (1104) is fixedly connected to a second connecting shaft (1105), and the inner ends of the first connecting shaft (1101) and the second connecting shaft (1105) are movably connected to the inner side of the protective shell (1103).

3. A stable and fast punching die for pipe fittings according to claim 1, characterized in that: The transmission assembly (12) comprises a first transmission wheel (1201) and a second transmission wheel (1202), and semicircular grooves are arranged on the outer sides of the first transmission wheel (1201) and the second transmission wheel (1202).

4. A stable and fast punching die for pipe fittings according to claim 1, characterized in that: The connecting column (5) comprises a column body (501), a slot (502) is provided at a lower middle portion of the column body (501), and the movable latch (1804) is inserted into the slot (502).

5. The stable and fast punching die for pipe fittings according to claim 1, characterized in that: The bottom of the connecting column (5) is fixedly connected to the top of the upper die limiting plate (6), the connecting column (5) passes through and is movably connected to the bottom of the hydraulic punch (2), and the outer side of the connecting column (5) is sleeved inside the first spring (4).

6. A stable and fast punching die for pipe fittings according to claim 2, characterized in that: The upper ends of both sides of the material platform (14) are fixedly connected to a support plate (13), and the first connecting shaft (1101) and the second connecting shaft (1105) penetrate through and are rotatably connected to the interior of the support plate (13).

7. The stable and fast punching die for pipe fittings according to claim 1, characterized in that: An upper die groove (7) is provided on the lower side of the upper die limiting plate (6), and a lower die sliding groove (16) is provided on the upper surface of the lower die plate (15).

8. The stable and fast punching die for pipe fittings according to claim 1, characterized in that: A punching head (3) is fixedly connected to the center of the lower side of the hydraulic punching platform (2).

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