"V"-shaped rib demoulding device for a bending machine

Abstract

A "V"-shaped rib demolding device for a bending machine, characterized by comprising: a forming die and a demolding device, including a right demolding device and a left demolding device; wherein, the upper forming die is fixedly connected to the movable beam of the bending machine, and the lower forming die is fixedly connected to the installation table; the bottom of the upper forming die is a "V"-shaped convex structure; a "V"-shaped groove is provided on the lower forming die; the right demolding device and the left demolding device have the same structure and are symmetrically arranged on both sides of the upper forming die; after stamping, the left demolding device and the right demolding device can be adjusted towards the "V"-shaped rib side to clamp the "V"-shaped rib, so that it can be removed from the lower forming die as the upper forming die is lifted. After stamping, the left demolding device and the right demolding device can be adjusted towards the "V"-shaped rib side to clamp the "V"-shaped rib, so that it can be removed from the lower forming die as the upper forming die is lifted, realizing the demolding after the "V"-shaped rib is formed and meeting the demolding requirements after the "V"-shaped rib is formed.

Description

Technical Field

[0001] The present invention relates to the field of hydropower generation, and particularly to a "V"-shaped rib demolding device for use in a bending machine. Background Art

[0002] The "V"-shaped rib is an important part in the stator frame of a hydro (power) generator. Its main functions are to bear the stator core group, improve the stiffness of the frame wall of the stator frame, and utilize the ventilation cavity formed by the "V"-shaped rib and the frame wall to ventilate and cool the frame. The length of the "V"-shaped rib is the same as the height of the frame wall of the stator frame. Its cross-section in the direction perpendicular to the length is "V"-shaped. The two limbs are in close contact with the inner wall of the frame wall of the thin-walled cylinder structure. A number of "V"-shaped ribs are evenly distributed along the inner wall of the cylinder at a small interval, and the cylindrical surface formed by the tops of the "V"-shaped ribs must meet the relevant requirements of the stator frame.

[0003] The processing (forming) of the "V"-shaped rib is achieved by using a bending machine and a special mold installed thereon. Since the "V"-shaped rib is relatively long, after it is formed, under the action of the forming force, the "V"-shaped rib fits tightly with the lower forming mold. The operator needs to use tools such as a crowbar to pry a suitable gap at the end of the "V"-shaped rib to achieve the demolding of the "V"-shaped rib. In this way, the manufacturing efficiency of the "V"-shaped rib will be greatly reduced. Therefore, it is necessary to design a "V"-shaped rib demolding device for use in the processing (forming) of the "V"-shaped rib using a bending machine to replace the method of using tools such as a crowbar to achieve the demolding of the "V"-shaped rib and improve the processing (forming) efficiency of the "V"-shaped rib. Summary of the Invention

[0004] The main technical problem solved by the present invention is: designing a "V"-shaped rib demolding device for use in a bending machine.

[0005] To solve the above technical problem, the technical solution adopted by the present invention is: a "V"-shaped rib demolding device for use in a bending machine, characterized by comprising:

[0006] A forming mold, including an upper forming die and a lower forming die;

[0007] A demolding device, including a right demolding device and a left demolding device;

[0008] Wherein, the upper forming die is fixedly connected to the moving beam of the bending machine, and the lower forming die is fixedly connected to the installation table; the bottom of the upper forming die is a "V"-shaped convex structure; a "V"-shaped groove is provided on the lower forming die; the right demolding device and the left demolding device have the same structure and are symmetrically arranged on both sides of the upper forming die; after stamping, the left demolding device and the right demolding device can be adjusted towards the "V"-shaped rib side to clamp the "V"-shaped rib, so that it can be lifted out of the lower forming die along with the upper forming die.

[0009] Further, the right demolding device is of a bent structure. Among them, the first bent part is a fixed shaft, and the fixed shaft is arranged on the top surface of the upper forming die; the second bent part is a pull rod, and the pull rod is arranged at the end of the fixed shaft. The pull rod extends downward to both sides of the "V"-shaped protrusion on the bottom surface of the upper forming die, and a lifting block is arranged at the bottom of the pull rod.

[0010] Further, two concave areas are arranged on the fixed shaft, and the concave areas are respectively arranged in the middle and at the end of the fixed shaft; the fixed shaft is arranged on the upper forming die through a fixed seat; a limit screw and a locking screw are arranged on the fixed seat. The limit screw is tightened downward and extends into the concave area in the middle to prevent the fixed shaft from detaching from the fixed seat; the locking screw is used to limit the rotation of the fixed shaft in the fixed seat.

[0011] Further, the pull rod is sleeved outside the fixed shaft, and the pull rod can rotate around the fixed shaft as the axis. A screw hole is opened between the pull rod and the fixed shaft, and a set screw can be placed in the screw hole. The set screw is used to limit the relative rotation between the pull rod and the fixed shaft.

[0012] Further, the pull rod includes: an upper pull rod, a lower pull rod and a limit sleeve; the upper pull rod is connected to the end of the fixed shaft, the upper pull rod and the lower pull rod are hinged through a pin shaft, and a lifting block is arranged near the edge at the bottom of the lower pull rod; a limit sleeve is sleeved on the upper pull rod.

[0013] Further, the lifting block is connected to the lower pull rod through a connecting screw, and the lifting block is replaceable.

[0014] Further, several forming devices are arranged.

[0015] The present invention designs a "V"-shaped rib demolding device for a bending machine, including a forming die and a demolding device. Among them, the forming die includes an upper forming die and a lower forming die; the demolding device includes a right demolding device and a left demolding device; the steel plate is placed on the lower forming die, and the upper forming die presses downward to form a "V"-shaped rib. After stamping is completed, the left demolding device and the right demolding device can be adjusted toward the "V"-shaped rib side to clamp the "V"-shaped rib, so that it is removed from the lower forming die as the upper forming die is lifted, realizing the demolding after the "V"-shaped rib is formed and meeting the demolding requirements after the "V"-shaped rib is formed.

[0016] In addition, in the present invention, the demolding device includes a fixed shaft and a pull rod. When the steel plate is loaded and the upper forming die presses downward, in order to prevent the demolding device from interfering with the stamping process, the pull rod is set as a rotating rod that can rotate around the fixed shaft as the axis. Before stamping starts, first rotate the pull rod along the lifting shaft to the horizontal position and tighten the locking bolt and the set bolt on the fixed shaft to prevent the interference of the demolding device.

[0017] Secondly, to avoid interference between the lifting block and the "V"-shaped rib when the pull rod rotates downward from the horizontal position to the vertical position, the upper pull rod and the lower pull rod of the pull rod are arranged to be hinged. When the lifting block and the "V"-shaped rib interfere with each other, rotate the lower pull rod to avoid the "V"-shaped rib. After placing it in the specified position, pull down the limit sleeve sleeved on the upper pull rod to fix the pull rod and clamp the "V"-shaped rib for easy removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 FIG. is a side view of the overall structure of a "V"-shaped rib demoulding device for a bending machine according to the present invention.

[0020] Figure 2 FIG. is a front view of the overall structure of a "V"-shaped rib demoulding device for a bending machine according to the present invention.

[0021] Figure 3 FIG. is a schematic diagram of the use of a "V"-shaped rib demoulding device for a bending machine according to the present invention.

[0022] Figure 4 FIG. is a front view of a "V"-shaped rib demoulding device for a bending machine according to the present invention.

[0023] Figure 5 FIG. is a side view of a "V"-shaped rib demoulding device for a bending machine according to the present invention.

[0024] Wherein:

[0025] 1, hydraulic cylinder; 2, moving beam; 3, upper forming die; 4, demoulding device; 5, lower forming die;

[0026] 6, installation table; 7, workbench; 8, "V"-shaped rib; 41, right demoulding device;

[0027] 42, left demoulding device; 411, fixed seat; 412, lifting shaft; 413, upper pull rod;

[0028] 414, lower pull rod; 415, pin shaft; 416, limit sleeve; 417, lifting block;

[0029] 418, tightening screw; DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work shall fall within the protection scope of the present invention.

[0031] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0032] As Figures 1-5 shown, a demolding device 4 for a "V"-shaped rib 8 used in a bending machine, characterized by comprising:

[0033] A forming die, including an upper forming die 3 and a lower forming die 5;

[0034] A demolding device 4, including a right demolding device 41 and a left demolding device 42;

[0035] Wherein, the upper forming die 3 is fixedly connected to the moving beam 2 of the bending machine, and the lower forming die 5 is fixedly connected to the mounting table 6; the bottom of the upper forming die 3 is a "V"-shaped convex structure; a "V"-shaped groove is provided on the lower forming die 5; the right demolding device 41 and the left demolding device 42 have the same structure and are symmetrically arranged on both sides of the upper forming die 3; after stamping, the left demolding device 42 and the right demolding device 41 can be adjusted towards the "V"-shaped rib 8 side to clamp the "V"-shaped rib 8, so that it is removed from the lower forming die 5 as the upper forming die 3 is lifted. During processing, the steel plate is placed on the lower forming die 5, and the upper forming die 3 presses downward to form a "V"-shaped rib 8. After stamping, the left demolding device 42 and the right demolding device 41 can be adjusted towards the "V"-shaped rib 8 side to clamp the "V"-shaped rib 8, so that it is removed from the lower forming die 5 as the upper forming die 3 is lifted, realizing the demolding after the "V"-shaped rib 8 is formed and meeting the demolding requirements after the "V"-shaped rib 8 is formed.

[0036] Since the left demolding device 42 and the right demolding device 41 have the same structure, the structure of the right demolding device 41 will be described in detail herein. As Figure 2As shown, the right demolding device 41 is a bent structure. Among them, the first bent part is a fixed shaft, and the fixed shaft is arranged on the top surface of the upper forming die 3; the second bent part is a pull rod, and the pull rod is arranged at the end of the fixed shaft. The pull rod extends downward to both sides of the "V" - shaped protrusion on the bottom surface of the upper forming die 3, and a lifting block 417 is arranged at the bottom of the pull rod.

[0037] Among them, as Figure 4 shown, two recessed areas are arranged on the fixed shaft, and the recessed areas are respectively arranged in the middle and the end of the fixed shaft; the fixed shaft is arranged on the upper forming die 3 through a fixed seat 411; limit screws and locking screws are arranged on the fixed seat 411. The limit screws are tightened downward and extend into the recessed area in the middle to prevent the fixed shaft from detaching from the fixed seat 411; the locking screws are used to limit the rotation of the fixed shaft in the fixed seat 411.

[0038] As Figure 5 shown, the pull rod is sleeved outside the fixed shaft, and the pull rod can rotate around the fixed shaft as the axis. A screw hole is opened between the pull rod and the fixed shaft, and a set screw can be placed in the screw hole. The set screw is used to limit the relative rotation between the pull rod and the fixed shaft.

[0039] Among them, the pull rod includes: an upper pull rod 413, a lower pull rod 414 and a limit sleeve 416; the upper pull rod 413 is connected to the end of the fixed shaft. The upper pull rod 413 and the lower pull rod 414 are hinged through a pin shaft 415. A lifting block 417 is arranged near the edge at the bottom of the lower pull rod 414; a limit sleeve 416 is sleeved on the upper pull rod 413.

[0040] As Figure 4 shown, the lifting block 417 is connected to the lower pull rod 414 through a connecting screw, and the lifting block 417 is replaceable. In actual production, although the "V" - shaped ribs 8 used by the unit are different, by adjusting and selecting different lifting blocks 417 and lower pull rods 414, it can be used for the forming operation of "V" - shaped ribs 8 of various specifications.

[0041] In addition, since the "V" - shaped rib 8 is relatively long, several demolding devices are provided. The left demolding device 42 and the right demolding device 41 are installed in pairs, and several forming molds are installed on the upper forming die 3.

[0042] The present invention designs a "V"-shaped rib 8 demoulding device 4 for a bending machine, including a forming die and a demoulding device 4. Among them, the forming die includes an upper forming die 3 and a lower forming die 5; the demoulding device 4 includes a right demoulding device 41 and a left demoulding device 42; the steel plate is placed on the lower forming die 5, and the upper forming die 3 presses downward to form a "V"-shaped rib 8. After stamping, the left demoulding device 42 and the right demoulding device 41 can be adjusted toward the "V"-shaped rib 8 side to clamp the "V"-shaped rib 8, so that it is removed from the lower forming die 5 as the upper forming die 3 is lifted, realizing the demoulding after the "V"-shaped rib 8 is formed and meeting the demoulding requirements after the "V"-shaped rib 8 is formed.

[0043] In addition, in the present invention, the demoulding device 4 includes a fixed shaft and a pull rod. When the steel plate is loaded and the upper forming die 3 presses downward, in order to prevent the demoulding device 4 from interfering with the stamping process, the pull rod is set as a rotating rod that can rotate around the fixed shaft. Before stamping starts, first rotate the pull rod along the lifting shaft 412 to the horizontal position and tighten the locking bolt and the set bolt on the fixed shaft to prevent the interference of the demoulding device 4.

[0044] Secondly, in order to avoid interference between the lifting block 417 and the "V"-shaped rib 8 when the pull rod rotates downward from the horizontal position to the vertical position, the upper pull rod 413 and the lower pull rod 414 of the pull rod are set to be hinged. When the lifting block 417 and the "V"-shaped rib 8 interfere with each other, rotate the lower pull rod 414 to avoid the "V"-shaped rib 8. After being placed in the designated position, pull down the limit sleeve 416 sleeved on the upper pull rod 413 to fix the pull rod so that it clamps the "V"-shaped rib 8 for easy removal.

[0045] During actual use, first fix the demoulding device 4 on the upper forming die 3. First insert the fixed shaft into the fixed seat 411, and first tighten the limit screw. The limit screw is tightened downward and extends into the concave area in the middle to prevent the fixed shaft from detaching from the fixed seat 411.

[0046] During the feeding and stamping process of the stamping machine, in order to avoid the interference of the discharging device, the pull rod is set as a rotating rod that can rotate around the fixed shaft. Before stamping starts, first rotate the pull rod along the lifting shaft 412 to the horizontal position and tighten the locking bolt and the set bolt on the fixed shaft to prevent the interference of the demoulding device 4.

[0047] After stamping is completed, loosen the locking screw and the set screw, rotate the pull rod to the vertical position, and then tighten the locking screw and the set screw to allow the discharging device to move. If the lifting block 417 and the "V"-shaped rib 8 interfere with each other when the pull rod rotates to the vertical position, rotate the lower pull rod 414 to avoid the "V"-shaped rib 8. After being placed in the designated position, pull down the limit sleeve 416 sleeved on the upper pull rod 413 to fix the hinged position of the pull rod so that it clamps the "V"-shaped rib 8 for easy removal.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A "V"-shaped rib demolding device for a bending machine, characterized in that, it includes: A forming die, including an upper forming die and a lower forming die; A demolding device, including a right demolding device and a left demolding device; Wherein, the upper forming die is fixedly connected to the moving beam of the bending machine, and the lower forming die is fixedly connected to the installation table; the bottom of the upper forming die is a "V"-shaped convex structure; a "V"-shaped groove is provided on the lower forming die; the right demolding device and the left demolding device have the same structure and are symmetrically arranged on both sides of the upper forming die; after stamping, the left demolding device and the right demolding device can be adjusted towards the "V"-shaped rib side to clamp the "V"-shaped rib and move it out of the lower forming die as the upper forming die is lifted; The right demolding device is a bending structure. Among them, the first bending part is a fixed shaft, and the fixed shaft is arranged on the top surface of the upper forming die; the second bending part is a pull rod, and the pull rod is arranged at the end of the fixed shaft. The pull rod extends downward to both sides of the "V"-shaped convex on the bottom surface of the upper forming die, and a lifting block is arranged at the bottom of the pull rod; The pull rod is sleeved outside the fixed shaft. The pull rod can rotate around the fixed shaft as the axis. A screw hole is opened between the pull rod and the fixed shaft, and a set screw can be placed in the screw hole to limit the relative rotation between the pull rod and the fixed shaft; The pull rod includes: an upper pull rod, a lower pull rod and a limit sleeve; the upper pull rod is connected to the end of the fixed shaft, the upper pull rod and the lower pull rod are hinged by a pin shaft, and a lifting block is arranged near the edge at the bottom of the lower pull rod; a limit sleeve is sleeved on the upper pull rod.

2. A "V"-shaped rib demolding device for a bending machine according to claim 1, characterized in that: Two concave areas are provided on the fixed shaft, and the concave areas are respectively arranged in the middle and the end of the fixed shaft; the fixed shaft is arranged on the upper forming die through a fixed seat; a limit screw and a locking screw are arranged on the fixed seat. The limit screw is tightened downward and extends into the concave area in the middle to prevent the fixed shaft from detaching from the fixed seat; the locking screw is used to limit the rotation of the fixed shaft in the fixed seat.

3. A "V"-shaped rib demolding device for a bending machine according to claim 1, characterized in that: The lifting block is connected to the lower pull rod by a connecting screw, and the lifting block is replaceable.

4. A "V"-shaped rib demolding device for a bending machine according to claim 1, characterized in that: Several demolding devices are provided.

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