Extrusion die for metal bent pipe

Abstract

The utility model belongs to the technical field of pipe bending dies, and particularly relates to a metal pipe bending extrusion die which comprises a numerical control bed and a rotating seat hinged to one side of the numerical control bed, a sliding clamping seat is arranged at the upper end of the rotating seat through an air cylinder, a clamping die connected in a clamping mode is arranged at the front end of the clamping seat, and a wheel die is fixedly arranged on the numerical control bed. A linkage block matched with the clamping base in a clamped mode is arranged in the clamping die, a connecting rod is arranged on the clamping die in an inserted and clamped mode, and the linkage block and the connecting rod are matched so that the wheel die combination can be fixed to the clamping die. It can be understood that firstly, the clamping die can be rapidly disassembled and assembled on the clamping base through the arranged clamping component, meanwhile, the stability of the clamping die after installation can be guaranteed, secondly, the wheel die and the clamping die can be combined through the arranged connecting rod, and storage of the die when the die is not used is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipe bending dies, in particular to an extrusion die for metal pipe bending. Background Art

[0002] CNC pipe bending machines are mainly used for laying and repairing pipes in power construction, highway and railway construction, boilers, bridges, ships, furniture, decoration, etc. They have the advantages of multiple functions, reasonable structure, simple operation, convenient movement, and fast installation.

[0003] The bending die of the pipe bending machine is an important tool for bending pipes into specific shapes. Its design and manufacturing quality directly affect the quality and efficiency of the pipe bending.

[0004] The mold includes: wheel mold: used to guide the pipe to bend along a predetermined path and form the required bending shape; clamping mold: used to clamp the pipe to prevent it from sliding or moving during the bending process;

[0005] When metal tubes of different sizes need to be bent, the corresponding molds need to be replaced to ensure the bending effect. Traditional wheel molds and clamping molds generally need to be fixed by bolts, which is obviously not convenient for operation, not conducive to the rapid replacement of molds, and affects the bending efficiency of metal tubes; secondly, wheel molds and clamping molds are placed independently when not in use, which is prone to installation errors when in use;

[0006] In order to solve the above problems, the present application proposes an extrusion die for a metal bent pipe. Utility Model Content

[0007] The utility model aims to provide an extrusion die for a metal bent pipe, which solves the problems raised in the above-mentioned background technology.

[0008] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0009] The utility model is an extrusion die for a metal bent pipe, comprising a numerical control bed and a rotating seat hinged on one side of the numerical control bed, wherein the upper end of the rotating seat is provided with a sliding clamping seat through a cylinder, the front end of the clamping seat is provided with a clamping die for clamping connection, a wheel die is fixedly arranged on the numerical control bed, a linkage block for clamping and matching with the clamping seat is arranged inside the clamping die, a connecting rod is inserted and clamped on the clamping die, and the linkage block and the connecting rod cooperate to fix the wheel die combination on the clamping die.

[0010] Furthermore, a waist-shaped groove is provided at the upper end of the linkage block, a rectangular groove is provided at the lower end of the waist-shaped groove and is interconnected, an arc block is fixedly provided on one side of the waist-shaped groove, a rectangular block is fixed at the bottom of the connecting rod, and an annular groove is provided at the lower end of the connecting rod.

[0011] Furthermore, the lower end of the connecting rod can be inserted into the clamp and can slide in the waist-shaped groove, the rectangular block and the rectangular groove are plugged into each other and can slide, and the arc block slides and engages with the annular groove to lock the connecting rod on the clamp.

[0012] Furthermore, a handle is fixed on the top of the connecting rod, the rectangular block matches the diameter of the wheel mold mounting hole, and a gap equal to the height of the wheel mold is formed between the bottom of the handle and the upper end of the clamping mold. The connecting rod can pass through the wheel mold and be locked with the clamping mold and the linkage block.

[0013] Furthermore, a plug-in block is fixed on one side of the clamping seat, a locking groove is provided on one side of the middle of the plug-in block, a plug-in groove plugged into the plug-in block is provided on the clamping mold, and a locking block plugged into the locking groove is fixed on the side of the linkage block.

[0014] Furthermore, a pressure rod is fixed to one end of the linkage block, and the pressure rod passes through the side of the clamping die, and a locking spring is arranged between the end of the linkage block away from the pressure rod and the inside of the clamping die.

[0015] Further, the locking block is engaged with the locking groove through a locking spring, and the arc block is engaged with the annular groove through a locking spring.

[0016] The utility model has the following beneficial effects:

[0017] The utility model realizes the rapid installation and removal of the clamping die by arranging the matching of the plug-in block and the plug-in slot, and then arranging the matching of the locking slot and the locking block through the clamping mode, and can ensure the reliability during use;

[0018] The utility model is connected with the clamping die by setting a connecting rod, and the connecting rod can also connect the wheel die to the clamping die, which is convenient for storage and transportation of the clamping die and the wheel die when not in use, and avoids confusion of different sizes when reinstalled. The locking of the connecting rod is in a linkage state with the locking of the clamping die and the clamping seat, which has the advantages of high structural coordination and convenient operation.

[0019] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 This is a schematic diagram of the overall appearance structure of the utility model;

[0022] Figure 2 for Figure 1 Schematic diagram of the structure after the middle clamping die is disassembled;

[0023] Figure 3 It is a structural schematic diagram of the utility model when the clamping die and the wheel die are combined and stored;

[0024] Figure 4 for Figure 3 Schematic diagram of the structure with partial sectioning;

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] In the figure: 1. CNC bed; 2. Rotating seat; 3. Clamping seat; 31. Plug-in block; 32. Locking groove; 4. Clamping die; 41. Plug-in groove; 5. Wheel die; 6. Linkage block; 61. Locking block; 62. Waist-shaped groove; 63. Rectangular groove; 64. Arc block; 65. Pressure rod; 66. Locking spring; 7. Connecting rod; 71. Rectangular block; 72. Annular groove; 73. Handle. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the description of the present invention, it should be understood that terms such as "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limitations on the present invention.

[0029] See also Figure 1-4 As shown, the utility model is an extrusion die for a metal bent pipe, comprising a CNC bed 1 and a rotating seat 2 hinged on one side of the CNC bed 1, a sliding clamping seat 3 is provided on the upper end of the rotating seat 2 through a cylinder, a clamping die 4 is provided at the front end of the clamping seat 3 for snap-fit ​​connection, a wheel die 5 is fixedly arranged on the CNC bed 1, a linkage block 6 which is snap-fitted with the clamping seat 3 is provided inside the clamping die 4, a connecting rod 7 is inserted and snap-fitted on the clamping die 4, and the linkage block 6 and the connecting rod 7 can cooperate to fix the wheel die 5 on the clamping die 4.

[0030] Among them, a waist-shaped groove 62 is provided at the upper end of the linkage block 6, and a rectangular groove 63 is provided inside the linkage block 6, which is located at the lower end of the waist-shaped groove 62 and is interconnected. An arc block 64 is fixedly arranged on one side of the waist-shaped groove 62, and a rectangular block 71 is fixed at the bottom of the connecting rod 7. An annular groove 72 is provided at the lower end of the outer side of the connecting rod 7. The lower end of the connecting rod 7 can be inserted into the clamping mold 4 and can slide in the waist-shaped groove 62. The rectangular block 71 and the rectangular groove 63 are plugged into each other and can slide. The arc block 64 engages with the annular groove 72 by sliding and locks the connecting rod 7 on the clamping mold 4. In this embodiment, the length and width of the rectangular block 71 are smaller than the diameter of the connecting rod 7. The cooperation of the rectangular block 71 and the arc block 64 is used to limit the direction of the handle 73 to avoid the rotation of the clamping mold 4 and the wheel mold 5 after the handle 73 is extracted.

[0031] Among them, a handle 73 is fixed on the top of the connecting rod 7, the rectangular block 71 is consistent with the diameter of the mounting hole of the wheel mold 5, and a gap equal to the height of the wheel mold 5 is formed between the bottom of the handle 73 and the upper end of the clamping mold 4. The connecting rod 7 can pass through the wheel mold 5 and be locked with the clamping mold 4 and the linkage block 6. In this embodiment, the handle 73 is integrally connected to the connecting rod 7, which is convenient for the insertion and removal of the connecting rod 7 and also convenient for the movement of the clamping mold 4 and the wheel mold 5 after the combination.

[0032] Among them, a plug-in block 31 is fixed on one side of the clamping seat 3, a locking groove 32 is opened on the middle side of the plug-in block 31, a plug-in groove 41 plugged with the plug-in block 31 is opened on the clamping die 4, and a locking block 61 plugged with the locking groove 32 is fixed on the side of the linkage block 6. In this embodiment, after the plug-in groove 41 and the plug-in block 31 are vertically plugged in, the plug-in groove 41 and the locking groove 32 arranged in the horizontal direction cooperate to effectively ensure the connection reliability of the clamping seat 3 and the clamping die 4, and it also has the advantage of convenient operation.

[0033] Among them, a pressure rod 65 is fixed at one end of the linkage block 6, and the pressure rod 65 passes through the side of the clamping die 4, and a locking spring 66 is arranged between the end of the linkage block 6 away from the pressure rod 65 and the inside of the clamping die 4. In this embodiment, the pressure rod 65 is a disengagement button, and the engagement between the clamping seat 3 and the clamping die 4 and the engagement between the connecting rod 7 and the linkage block 6 are all disengaged by pressing the pressure rod 65, which has the advantages of good structural linkage effect and convenient operation.

[0034] Among them, the locking block 61 is engaged with the locking groove 32 through the locking spring 66, and the arc block 64 is engaged with the annular groove 72 through the locking spring 66. The two connections in this embodiment are locked by the locking spring 66, which has the advantage of high structural fit. At the same time, this connection structure has reliable stability.

[0035] It can be understood that the locking component provided firstly can realize the quick disassembly and assembly of the clamping mold 4 on the clamping seat 3, and at the same time can ensure the stability of the clamping mold 4 after installation. Secondly, the connecting rod 7 is provided to combine the wheel mold 5 with the clamping mold 4, so as to facilitate the storage of the mold when not in use.

[0036] A specific application of this embodiment is: Figure 1 The figure shows the use state of the mold. When it is necessary to remove it for replacement or storage, the pressing rod 65 is pressed to drive the linkage block 6 to slide inside the clamping mold 4, the locking spring 66 is compressed, and the arc block 64 is disengaged from the annular groove 72. The connecting rod 7 is first removed from the top of the clamping mold 4. After the locking blocks 61 and 42 are disengaged, the clamping mold 4 is lifted upward until the insertion groove 41 and the insertion block 31 are disengaged. Then, the clamping mold 4 can be removed from the clamping seat 3, and the wheel mold 5 is removed by a wrench or other tools. The center hole on the wheel mold 5 is connected with the center hole on the clamping mold 4 for plugging with the connecting rod 7. Corresponding to the hole, the connecting rod 7 passes through the wheel mold 5 and is inserted into the clamping mold 4. At this time, the pressing rod 65 is pressed to compress the locking spring 66, and the rectangular block 71 enters the rectangular groove 63. The bottom of the connecting rod 7 enters the waist-shaped groove 62, and the annular groove 72 cooperates with the arc block 64. The bottom of the handle 73 contacts the upper surface of the wheel mold 5. After the clamping mold 4 is released, the arc block 64 is stuck in the annular groove 72 under the action of the locking spring 66. At this time, the connecting rod 7 is locked on the clamping mold 4 together with the wheel mold 5, and the handle 73 can realize the convenience of mold movement.

[0037] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0038] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An extrusion die for a metal bent pipe, comprising a numerically controlled bed (1) and a rotating seat (2) hinged to one side of the numerically controlled bed (1), characterized in that: The upper end of the rotating seat (2) is provided with a sliding clamping seat (3) through a cylinder, the front end of the clamping seat (3) is provided with a clamping die (4) that is snap-connected, a wheel die (5) is fixedly arranged on the CNC machine (1), a linkage block (6) that is snap-connected with the clamping seat (3) is arranged inside the clamping die (4), a connecting rod (7) is inserted and snap-connected on the clamping die (4), and the linkage block (6) and the connecting rod (7) cooperate to fix the wheel die (5) on the clamping die (4).

2. The extrusion die for a metal elbow according to claim 1, characterized in that: A waist-shaped groove (62) is provided at the upper end of the linkage block (6), a rectangular groove (63) is provided at the lower end of the waist-shaped groove (62) and is interconnected, an arc block (64) is fixedly provided on one side of the waist-shaped groove (62), a rectangular block (71) is fixedly provided at the bottom of the connecting rod (7), and an annular groove (72) is provided at the lower end of the connecting rod (7).

3. The extrusion die for a metal elbow according to claim 2, characterized in that: The lower end of the connecting rod (7) can be inserted into the clamping mold (4) and can slide in the waist-shaped groove (62); the rectangular block (71) and the rectangular groove (63) are plugged into each other and can slide; the arc block (64) is engaged with the annular groove (72) by sliding and locks the connecting rod (7) on the clamping mold (4).

4. The extrusion die for a metal elbow according to claim 3, characterized in that: A handle (73) is fixed on the top of the connecting rod (7); the diameter of the rectangular block (71) matches that of the mounting hole of the wheel mold (5); a gap equal to the height of the wheel mold (5) is formed between the bottom of the handle (73) and the upper end of the clamping mold (4); the connecting rod (7) can pass through the wheel mold (5) and be locked with the clamping mold (4) and the linkage block (6).

5. The extrusion die for a metal elbow according to claim 4, characterized in that: A plug-in block (31) is fixed on one side of the clamping seat (3), a locking groove (32) is provided on one side of the middle of the plug-in block (31), a plug-in groove (41) plugged into the plug-in block (31) is provided on the clamping die (4), and a locking block (61) plugged into the locking groove (32) is fixed on the side of the linkage block (6).

6. The extrusion die for a metal elbow according to claim 5, characterized in that: A pressure rod (65) is fixed to one end of the linkage block (6), and the pressure rod (65) passes through the side of the clamping mold (4). A locking spring (66) is arranged between the end of the linkage block (6) away from the pressure rod (65) and the inside of the clamping mold (4).

7. The extrusion die for a metal elbow according to claim 6, characterized in that: The locking block (61) is engaged with the locking groove (32) via a locking spring (66), and the arc block (64) is engaged with the annular groove (72) via a locking spring (66).

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