Automatic punching equipment for water gap of electric melting pipe fitting

Abstract

The utility model discloses an electric melting pipe fitting water gap automatic punching device which comprises a punching support, a lower falling table is arranged on the punching support, a lower fixing tool is arranged in each hole of the lower falling table, a product assembly is connected to each lower fixing tool in an inserted mode, an upper fixing tool is arranged above each product assembly, and a lower fixing tool is arranged on the lower fixing tool. The upper fixing tool is fixed on the top air cylinder mechanism, two punching mechanisms are symmetrically arranged on the punching support base, an adjusting mechanism used for adjusting the positions of the two punching mechanisms is arranged below the two punching mechanisms, and the automatic punching equipment is formed by combining three servo modules and adding a reverse air cylinder; the device has the advantages of being smooth and clean in punching effect, free of burrs, low in failure rate and stable in production.

Description

Technical Field

[0001] This utility model relates to the field of pipe fitting production equipment, specifically to an automatic punching and cutting device for sprue nozzles of electrofusion pipe fittings. Background Technology

[0002] After injection molding, sprue marks remain on the surface of plastic pipe fittings. Therefore, these marks need to be removed after injection molding. The traditional method of removing sprue marks is to manually cut them one by one with a tool. This method is very inefficient, labor-intensive, and easily leads to fatigue. Furthermore, it often results in rework due to incomplete or inaccurate cutting, wasting manpower.

[0003] To address this issue, this invention proposes an automatic punching and cutting device for electrofusion pipe fittings, which avoids the problem of unstable cut quality caused by manual cutting with scissors. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide an automatic punching and cutting device for electrofusion pipe fittings, which realizes the automation of punching and cutting the sprue and improves work efficiency.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] An automatic punching and cutting device for electrofusion pipe fittings includes a punching bracket with a drop platform. Each hole in the drop platform has a lower fixing fixture, and a product component is inserted into each lower fixing fixture. An upper fixing fixture is provided above each product component and is fixed to a top cylinder mechanism. Two punching mechanisms are symmetrically arranged on the base of the punching bracket, and an adjustment mechanism for adjusting their positions is provided below the two punching mechanisms.

[0007] Furthermore, the top cylinder mechanism includes a set of top cylinders, an upper locking plate, and a connecting plate. Two top cylinders are symmetrically installed near both ends on the top plate of the punching bracket. The piston rod of the top cylinder passes through the top plate of the punching bracket and is installed in the connecting plate. An upper locking plate is connected below the connecting plate, and the upper fixing fixture is fixed on the upper locking plate.

[0008] Furthermore, a number of guide post assemblies are spaced apart between the two top cylinders. Each guide post assembly includes a guide post and a linear bearing. The linear bearing is installed in the mounting hole of the top plate of the punching bracket. A pad is provided at the bottom of the guide post extending out of the linear bearing. The pad is fixed to the connecting plate.

[0009] Furthermore, the product component includes a product and a mandrel fitted inside the product, wherein the size of the positioning hole on the upper surface of the mandrel matches the size of the positioning pin on the upper fixing fixture, and the size of the positioning hole on the lower surface of the mandrel matches the size of the positioning pin on the lower fixing fixture.

[0010] Furthermore, the punching mechanism includes a tool assembly, a tilting frame, a punching cylinder, a tilting cylinder, and a tilting fixing frame. The tool assembly includes a tool holder and a punching blade. The punching cylinder is installed inside the tilting frame. A sleeve is installed on the end of the tilting frame facing the product assembly. A linear bearing is installed on the end of the tilting fixing frame near the product assembly. The end of the punching blade passes through the linear bearing and the sleeve and is connected to the moving block of the punching cylinder. The tool holder is fixed on the tilting frame. The end of the tilting frame away from the product assembly is connected to the tilting fixing frame via a rotating shaft. The rotating shaft is connected to the output shaft of the tilting cylinder. The two tilting cylinder fixing frames are connected by a U-shaped connecting plate. A fixing plate is fixedly provided at the bottom of the U-shaped connecting plate.

[0011] Furthermore, the adjustment mechanism includes a linear module one and a linear module two perpendicular to the linear module one. The fixed plate is fixedly connected to the moving block on the linear module one, and the moving block of the linear module two is installed on the lower surface of the linear module.

[0012] Furthermore, a support plate is fixed to the lower surface of the linear module two, and guide shafts are provided near the four corners of the support plate. A base plate is provided below the punching bracket base. Each guide shaft passes through the punching bracket base and extends out of the base plate. Linear bearings are provided at the mating points of the guide shafts with the punching bracket base and the base plate. A servo motor is installed on the lower surface of the punching bracket base. The output shaft of the servo motor is connected to a screw, and the screw extends out of the rotary bearing at the center of the base plate.

[0013] Furthermore, two side cylinders are symmetrically arranged on both sides of the punching bracket, and the moving blocks of the side cylinders face the upper locking plate.

[0014] Furthermore, when the side cylinder moving block rises, the two ends of the upper locking plate can contact the corresponding side cylinder moving block.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1) The punching equipment of this utility model first activates the top cylinder, which moves the upper locking plate and connecting plate downwards. The locking plate moves the upper fixing fixture toward the positioning hole on the upper surface of the mandrel until the positioning pin on the upper fixing fixture is inserted into its corresponding positioning hole. Then, by adjusting the position of the moving block of the first linear module, the position of the two punching mechanisms in the x-axis direction is adjusted. By adjusting the position of the moving block of the second linear module, the position of the first linear module in the y-axis direction is adjusted, thereby adjusting the y-axis position of the two punching mechanisms. The output shaft of the servo motor rotates the screw, causing the guide shaft to move up and down in the linear bearing, thereby adjusting the height of the bearing plate, thus adjusting the position of the two punching mechanisms in the Z-axis direction. After the entire position is adjusted, the sprue is removed by the cooperation of the blade holder and the punching blade under the drive of the flipping cylinder and the punching cylinder. This realizes the automation of this process and overcomes the various drawbacks of the original method of relying on workers to cut with scissors, such as unstable cut quality.

[0017] 2) This utility model of automatic punching equipment consists of 3 servo modules combined with a reverse cylinder; it has high positional accuracy and flexibility, and is suitable for the fully automatic production of large electrofusion pipe fittings;

[0018] 3) The device mechanism of this utility model is embedded in the whole production line, which has the characteristics of smooth and clean punching effect, no burrs, low failure rate and stable production. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the punching and cutting equipment of this utility model;

[0020] Figure 2 This is a schematic diagram of the product structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the mandrel structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the lower drop platform structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the upper fixing fixture structure of this utility model;

[0024] Figure 6 This is a schematic diagram of the lower fixing fixture structure of this utility model;

[0025] Figure 7 This is a schematic diagram of the punching mechanism of this utility model;

[0026] Figure 8 This is a partial schematic diagram of the adjustment mechanism of this utility model;

[0027] Figure 9 This is a schematic diagram showing the cooperation between the punching cylinder and the punching blade of this utility model;

[0028] Figure 10 This is a schematic diagram of the punching part of this utility model without the punching cylinder installed.

[0029] In the diagram: 1. Punching bracket; 2. Drop platform; 3. Lower fixed fixture; 4. Upper fixed fixture; 5. Top cylinder; 6. Upper locking plate; 7. Connecting plate; 8. Guide post; 9. Pad plate; 12. Product; 13. Mandrel; 14. Tool assembly; 15. Rotating frame; 16. Punching cylinder; 17. Tilting cylinder; 18. Tool holder; 19. Punching blade; 20. Fixing plate; 21. Linear module one; 22. Linear module two; 23. Bearing plate; 24. Guide shaft; 25. Base plate; 26. Linear bearing; 27. Servo motor; 28. Screw; 29. ​​Side cylinder; 30. Rotary bearing; 31. Sleeve; 32. Tilting fixing frame. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the scope described herein.

[0031] Please refer to Figure 1 and 4 -6, an automatic punching and cutting device for electrofusion pipe fitting nozzles, including a punching bracket 1, a drop platform 2 on the punching bracket 1, a lower fixing fixture 3 in each hole of the drop platform 2, a product component inserted into each lower fixing fixture 3, an upper fixing fixture 4 above each product component, the upper fixing fixture 4 being fixed to a top cylinder mechanism, two punching mechanisms symmetrically arranged on the base of the punching bracket 1, and an adjustment mechanism for adjusting their positions below the two punching mechanisms.

[0032] The top cylinder mechanism includes a set of top cylinders 5, an upper locking plate 6 and a connecting plate 7. Two top cylinders 5 are symmetrically installed on the top plate of the punching bracket 1 near both ends. The piston rod of the top cylinder 5 passes through the top plate of the punching bracket 1 and is installed in the connecting plate 7. The locking plate 6 is connected below the connecting plate 7. The upper fixing fixture 4 is fixed on the locking plate 6.

[0033] Several guide post assemblies are spaced apart between the two top cylinders 5. Each guide post assembly includes a guide post 8 and a linear bearing 26. The linear bearing 26 is installed in the mounting hole of the top plate of the punching bracket 1. The bottom of the guide post 8 extending out of the linear bearing 26 is provided with a pad 9, which is fixed to the connecting plate 7.

[0034] In this embodiment, there are two guide posts 8.

[0035] Please refer to Figure 2-3The product components include product 12 and a mandrel 13 disposed within product 12. The size of the positioning hole on the upper surface of mandrel 13 matches the size of the positioning pin on the upper fixed fixture 4, and the size of the positioning hole on the lower surface of mandrel 13 matches the size of the positioning pin on the lower fixed fixture 3.

[0036] When the top cylinder 5 is activated, the top cylinder 5 moves downward along with the upper locking plate 6 and the connecting plate 7. The locking plate 6 moves along with the upper fixing fixture 4 toward the positioning hole on the upper surface of the mandrel 13 until the positioning pin on the upper fixing fixture 4 is inserted into its corresponding positioning hole.

[0037] To allow the locating pins on the upper fixed fixture 4 to slowly insert into their corresponding locating holes, two side cylinders 29 are symmetrically arranged on both sides of the punching bracket 1, with the moving blocks of the side cylinders 29 facing the upper locking plate 6. When the moving blocks of the side cylinders 29 rise upward, the two ends of the upper locking plate 6 can contact the moving blocks of their corresponding side cylinders 29.

[0038] Before the top cylinder 5 is pressed down, the side cylinder 29 rises first to ensure that the upper fixed fixture 4 pre-positions the mandrel 13 of the product. After the positioning pin enters the positioning hole of the mandrel 13, the side cylinder 29 descends and the upper fixed fixture 4 fully pushes into the mandrel 13, completing the accurate positioning of the mandrel 13.

[0039] Please refer to Figure 7-10 The punching mechanism includes a tool assembly 14, a flipping frame 15, a punching cylinder 16, a flipping cylinder 17, and a flipping fixing frame 32. The tool assembly 14 includes a tool holder 18 and a punching blade 19. The punching cylinder 16 is installed inside the flipping frame 15. A sleeve 31 is installed at the end of the flipping frame 15 facing the product component. A linear bearing 26 is installed at the end of the flipping fixing frame 32 near the product component. The end of the punching blade 19 passes through the linear bearing 26 and the sleeve 31 and is connected to the moving block of the punching cylinder 16. The tool holder 18 is fixed on the flipping frame 15. The end of the flipping frame 15 away from the product component is connected to the flipping fixing frame 32 through a rotating shaft. The rotating shaft is connected to the output shaft of the flipping cylinder 17. The two flipping cylinder fixing frames are connected by a U-shaped connecting plate. A fixing plate 20 is fixedly provided at the bottom of the U-shaped connecting plate.

[0040] When the tilting cylinder 17 is activated, the output shaft of the tilting cylinder 17 drives the rotating shaft to rotate, which in turn drives the tilting frame 15 to rotate, and the tilting frame 15 drives the tool holder 18 and the tool head 19 to rotate.

[0041] Please refer to Figure 8 The adjustment mechanism includes a linear module 21 and a linear module 22 perpendicular to the linear module 21. The fixed plate 20 is fixedly connected to the moving block on the linear module 21, and the moving block of the linear module 22 is installed on the lower surface of the linear module 21.

[0042] A support plate 23 is fixed on the lower surface of the linear module 22. Guide shafts 24 are provided near the four corners of the support plate 23. A base plate 25 is provided below the base of the punching bracket 1. Each guide shaft 24 passes through the base of the punching bracket 1 and extends out of the base plate 25. Linear bearings 26 are provided at the joints between the guide shaft 24 and the base of the punching bracket 1 and the base plate 25. A servo motor 27 is installed on the lower surface of the base of the punching bracket 1. The output shaft of the servo motor 27 is connected to a screw 28. The screw 28 extends out of the rotary bearing 30 at the center of the base plate 25.

[0043] By adjusting the position of the moving block of linear module 1 21, the x-axis position of the two punching mechanisms is adjusted; by adjusting the position of the moving block of linear module 22, the y-axis position of linear module 1 21 is adjusted, thereby adjusting the y-axis position of the two punching mechanisms; the output shaft of servo motor 27 drives screw 28 to rotate, causing guide shaft 24 to move up and down within linear bearing 26, thereby adjusting the height of bearing plate 23, thus achieving adjustment of the Z-axis position of the two punching mechanisms, facilitating sprue shearing of the product.

Claims

1. An automatic punching and cutting device for electrofusion pipe fitting nozzles, comprising a punching bracket (1), wherein a drop platform (2) is provided on the punching bracket (1), a lower fixing fixture (3) is provided in each hole of the drop platform (2), a product component is inserted into each lower fixing fixture (3), and an upper fixing fixture (4) is provided above each product component, characterized in that... The upper fixing tool (4) is fixed on the top cylinder mechanism, two punching mechanisms are symmetrically arranged on the base of the punching support (1), and an adjusting mechanism for adjusting the positions of the two punching mechanisms is arranged below the two punching mechanisms.

2. The automatic punching and cutting device for the water gap of the electric melting pipe according to claim 1, characterized in that The top cylinder mechanism comprises a group of top cylinders (5), an upper locking plate (6) and a connecting plate (7), two top cylinders (5) are symmetrically arranged on the top plate of the punching support (1) near the two ends, the piston rods of the top cylinders (5) pass through the top plate of the punching support (1) and are arranged in the connecting plate (7), the upper locking plate (6) is connected below the connecting plate (7), and the upper fixing tool (4) is fixed on the upper locking plate (6).

3. The automatic punching and cutting device for the water gap of the electric melting pipe according to claim 2, characterized in that A plurality of guide column assemblies are arranged between the two top cylinders (5), each guide column assembly comprises a guide column (8) and a linear bearing (26), the linear bearing (26) is arranged in a mounting hole in the top plate of the punching support (1), and the guide column (8) extends out of the bottom of the linear bearing (26) and is provided with a pad (9), and the pad (9) is fixed on the connecting plate (7).

4. The automatic punching and cutting device for the water gap of the electric melting pipe according to claim 1, characterized in that The product assembly comprises a product (12) and a core rod (13) sleeved on the product (12), the upper surface positioning hole of the core rod (13) is matched with the positioning pin on the upper fixing tool (4) in size, and the lower surface positioning hole of the core rod (13) is matched with the positioning pin on the lower fixing tool (3) in size.

5. The automatic punching and cutting device for the water gap of the electric melting pipe according to claim 1, characterized in that The punching mechanism comprises a cutter assembly (14), a turnover frame (15), a punching cylinder (16), a turnover cylinder (17) and a turnover fixing frame (32), wherein the cutter assembly (14) comprises a cutter holder (18) and a punching cutter (19), the punching cylinder (16) is arranged in the turnover frame (15), a sleeve (31) is arranged at the end of the turnover frame (15) facing the product assembly, a linear bearing (26) is arranged at the end of the turnover fixing frame (32) facing the product assembly, the end of the punching cutter (19) passes through the linear bearing (26) and the sleeve (31) and is connected with the moving block of the punching cylinder (16), the cutter holder (18) is fixed on the turnover frame (15), and the end of the turnover frame (15) away from the product assembly is connected with the turnover fixing frame (32) through a rotating shaft, the rotating shaft is connected with the output shaft of the turnover cylinder (17), two turnover cylinder fixing frames are connected through a U-shaped connecting plate, and a fixed plate (20) is fixed at the bottom of the U-shaped connecting plate.

6. The automatic punching and cutting device for the water gap of the electric melting pipe according to claim 5, characterized in that The adjusting mechanism comprises a linear module one (21) and a linear module two (22) perpendicular to the linear module one (21), the fixed plate (20) is fixedly connected with the moving block of the linear module one (21), and the moving block of the linear module two (22) is arranged on the lower surface of the linear module one (21).

7. The automatic punching and cutting device for the water gap of the electric melting pipe according to claim 6, characterized in that The linear module two (22) lower surface is fixed with a bearing plate (23), the bearing plate (23) is close to four corners and is equipped with a guide shaft (24), the die cutting support (1) bottom is equipped with a bottom plate (25), each guide shaft (24) passes through the die cutting support (1) bottom and extends out of the bottom plate (25), the guide shaft (24) is equipped with a linear bearing (26) with the die cutting support (1) bottom and the bottom plate (25), the die cutting support (1) bottom lower surface is installed with a servo motor (27), the servo motor (27) output shaft is connected with a screw rod (28), the screw rod (28) extends out of the rotating bearing (30) in the center of the bottom plate (25).

8. The automatic punching and cutting device for the water gap of the electric melting pipe according to claim 1, characterized in that The die cutting support (1) both sides plate is equipped with two side air cylinders (29) symmetrically, the side air cylinder (29) moving block is towards the upper locking plate (6).

9. The automatic punching and cutting device for the water gap of the electric melting pipe according to claim 8, characterized in that When the side air cylinder (29) moving block rises upwards, the upper locking plate (6) both ends can contact with the corresponding side air cylinder (29) moving block.

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