Steel pipe necking equipment with necking die convenient to replace

Abstract

The utility model discloses a steel pipe necking device convenient to replace a necking die, which comprises a base, a mounting rod, a mounting plate, a hydraulic cylinder and the necking die, the mounting rod is fixedly connected to the base, and the mounting plate is fixedly connected to the top of the mounting rod; the hydraulic cylinder is arranged on the mounting plate, the necking die comprises an upper die and a lower die, the upper die is connected to a piston rod of the hydraulic cylinder, and the lower die is located on the base; a replacement table is arranged on one side of the base, a material carrying table is arranged on the other side of the base, the replacement table and the material carrying table are the same in height, when the hydraulic cylinder drives the upper die to ascend to the initial position, the top face of the replacement table is flush with the bottom face of the upper die, and when the upper die arranged on the replacement table moves towards the bottom of the hydraulic cylinder, the upper die at the bottom of the hydraulic cylinder moves towards the material carrying table. The connecting stability of the connecting die can be guaranteed, and the necking die can be conveniently replaced.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel pipe processing, and particularly relates to a steel pipe necking device which is convenient for replacing a necking die. Background Art

[0002] The necking device, belonging to non-cutting processing equipment, has the advantages of high production efficiency, simple process, easy operation, raw material saving, stable quality, etc., and is thus widely used in the processing and manufacturing industry. A necking device usually needs to process various types of steel pipes. When processing different types of steel pipes or steel pipes with different processing requirements, the necking die needs to be replaced. The existing necking die only ensures the connection stability and ignores the difficulty of replacement. The equipment needs more time to replace the die, which affects the processing efficiency of the steel pipe. Content of the Utility Model

[0003] This part of the content of this application is used to briefly introduce the concepts, which will be described in detail in the following detailed implementation part. This part of the content of this application is not intended to identify the key features or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a steel pipe necking device which is convenient for replacing a necking die.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a steel pipe necking device which is convenient for replacing a necking die, comprising a base, a mounting rod, a mounting plate, a hydraulic cylinder and a necking die. The mounting rod is fixedly connected to the base, and the mounting plate is fixedly connected to the top of the mounting rod. The hydraulic cylinder is arranged on the mounting plate. The necking die comprises an upper die and a lower die. The upper die is connected to the piston rod of the hydraulic cylinder, and the lower die is located on the base. A replacement table is arranged on one side of the base, and a loading table is arranged on the other side. The heights of the replacement table and the loading table are the same. When the hydraulic cylinder drives the upper die to rise to the initial position, the top surface of the replacement table is flush with the bottom surface of the upper die. When the upper die placed on the replacement table moves towards the bottom of the hydraulic cylinder, the upper die at the bottom of the hydraulic cylinder moves towards the loading table.

[0006] Further, a connecting plate is arranged on the piston rod of the hydraulic cylinder, a connecting block is arranged on the upper die, and a connecting groove corresponding to the connecting block is arranged on the connecting plate.

[0007] Further, the connecting block is of a T-shaped structure, a first positioning block is arranged on the connecting block, and a first positioning groove corresponding to the first positioning block is arranged at the top of the connecting groove.

[0008] Further, a first movable groove is arranged on the connecting block, the first positioning block is located in the first movable groove, and a first connecting spring is arranged at the bottom of the first positioning block. One end of the first connecting spring is fixedly connected to the bottom surface of the first movable groove.

[0009] Further, a second movable groove is provided on the side wall of the first positioning groove, a first push rod is provided on the side wall of the second movable groove, a guide groove is provided on the first positioning block, and the position of the guide groove is aligned with the position of the second movable groove.

[0010] Further, an extension rod is provided on the first push rod, and the extension rod passes through the connecting plate; a slider is provided on the first push rod, a sliding groove for the slider to move is provided on the inner wall of the second movable groove, and a return spring is provided on the slider.

[0011] Further, a connecting frame is provided on the mounting plate, a guide sleeve is provided on the connecting frame, a push block is provided in the guide sleeve, and the extension rod is at the bottom of the guide sleeve.

[0012] Further, a connecting rod is provided on the push block, a guide block is provided on the upper die, and a through groove corresponding to the guide block is provided on the connecting plate.

[0013] Further, a mounting groove corresponding to the lower die is provided on the base, a third movable groove is provided on the side wall of the lower die, a second positioning block is provided in the third movable groove, a second connecting spring is provided on the second positioning block, one end of the second connecting spring is fixedly connected to the inner wall of the third movable groove, and a second positioning groove corresponding to the second positioning block is provided on the inner wall of the mounting groove.

[0014] Further, a fourth movable groove is provided on the side wall of the second positioning groove, a second push rod and an electromagnet are provided in the fourth movable groove, a third connecting spring is provided on the second push rod, one end of the third connecting spring is fixedly connected to the inner wall of the fourth movable groove, and the second push rod is made of a magnet.

[0015] The beneficial effect of the present utility model is: to provide a steel pipe necking equipment that can not only ensure the connection stability of the connecting die but also facilitate the replacement of the necking die. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of this application are used to provide a further understanding of this application, making other features, objects, and advantages of this application more obvious. The schematic embodiments and descriptions of the drawings of this application are used to explain this application and do not constitute an improper limitation of this application.

[0017] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic, and the elements and elements are not necessarily drawn to scale.

[0018] In the drawings:

[0019] Figure 1 is a schematic structural diagram of a steel pipe necking equipment for facilitating the replacement of a necking die in an embodiment of the present utility model.

[0020] Figure 2 is Figure 1Cross-sectional view of the connecting block of the steel pipe necking equipment for conveniently replacing the necking die in the illustrated embodiment.

[0021] Figure 3 For Figure 2 The enlarged view of part A in

[0022] Figure 4 For Figure 1 Cross-sectional view of the upper die of the steel pipe necking equipment for conveniently replacing the necking die in the illustrated embodiment.

[0023] Figure 5 For Figure 4 The enlarged view of part B in

[0024] Figure 6 For Figure 1 Cross-sectional view of the lower die of the steel pipe necking equipment for conveniently replacing the necking die in the illustrated embodiment.

[0025] Figure 7 For Figure 6 The enlarged view of part C in

[0026] The meanings of the reference numerals in the figure are as follows:

[0027] 101, base; 102, mounting rod; 103, mounting plate; 104, hydraulic cylinder; 105, replacement table; 106, loading table; 107, upper die; 1071, guide block; 108, lower die; 109, first positioning block; 1091, guide groove; 1092, first connecting spring; 110, first push rod; 1101, extension rod; 1102, slider; 1103, return spring; 111, connecting frame; 112, guide sleeve; 113, push block; 1131, connecting rod; 114, second positioning block; 1141, second connecting spring; 115, second push rod; 1151, third connecting spring. Detailed implementation manners

[0028] Hereinafter, embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. Although some embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to more thoroughly and completely understand the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not used to limit the protection scope of the present disclosure.

[0029] In addition, it should be noted that for the convenience of description, only the parts related to the relevant utility model are shown in the drawings. Without conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other.

[0030] It should be noted that the concepts such as "first" and "second" mentioned in this disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependent relationships.

[0031] It should be noted that the modification of "one" and "multiple" mentioned in this disclosure is illustrative rather than restrictive. Those skilled in the art should understand that unless otherwise clearly specified in the context, it should be understood as "one or more".

[0032] The names of the messages or information exchanged between multiple devices in the embodiments of this disclosure are only for illustrative purposes and are not used to limit the scope of these messages or information.

[0033] The following will detail this disclosure with reference to the accompanying drawings and in conjunction with embodiments.

[0034] As Figure 1-7 shown, a steel pipe necking device for conveniently replacing the necking die includes a base 101, a mounting rod 102, a mounting plate 103, a hydraulic cylinder 104 and a necking die. The mounting rod 102 is fixedly connected to the base 101, and the mounting plate 103 is fixedly connected to the top of the mounting rod 102; the hydraulic cylinder 104 is arranged on the mounting plate 103, and the piston rod of the hydraulic cylinder 104 passes through the mounting plate 103. The necking die includes an upper die 107 and a lower die 108. The upper die 107 is connected to the piston rod of the hydraulic cylinder 104, and the lower die 108 is located on the base 101; a replacement table 105 is arranged on one side of the base 101, and a loading table 106 is arranged on the other side. The heights of the replacement table 105 and the loading table 106 are the same. When the hydraulic cylinder 104 drives the upper die 107 to rise to the initial position, the top surface of the replacement table 105 is flush with the bottom surface of the upper die 107. When the upper die 107 placed on the replacement table 105 moves towards the bottom of the hydraulic cylinder 104, the upper die 107 at the bottom of the hydraulic cylinder 104 moves towards the loading table 106.

[0035] A connecting plate is fixedly connected to the piston rod of the hydraulic cylinder. A connecting block is arranged on the upper die 107, and a connecting groove corresponding to the connecting block is arranged on the connecting plate; the connecting block has a T-shaped structure. A first movable groove is arranged on the connecting block, a first positioning block 109 is arranged in the first movable groove, a first positioning groove corresponding to the first positioning block 109 is arranged at the top of the connecting groove, and a first connecting spring 1092 is arranged at the bottom of the first positioning block 109. One end of the first connecting spring 1092 is fixedly connected to the bottom surface of the first movable groove.

[0036] A second movable groove is provided on the side wall of the first positioning groove, a first push rod 110 is provided on the side wall of the second movable groove, a guide groove 1091 is provided on the first positioning block 109, and the position of the guide groove 1091 is aligned with the position of the second movable groove; an extension rod 1101 is provided on the first push rod 110, and the extension rod 1101 passes through the connecting plate; a slider 1102 is provided on the first push rod 110, a sliding groove for the slider 1102 to move is provided on the inner wall of the second movable groove, and a return spring 1103 is provided on the slider 1102.

[0037] A connecting frame 111 is provided on the mounting plate 103, a guide sleeve 112 is provided on the connecting frame 111, a push block 113 is provided in the guide sleeve 112, and the extension rod 1101 is at the bottom of the guide sleeve 112; two connecting blocks are provided on the upper die 107, so two guide sleeves 112 are provided. A connecting rod 1131 is provided on the push block 113 to connect the push blocks 113 in the two guide sleeves 112 together. A guide block 1071 is provided on the upper die 107, and a through groove corresponding to the guide block 1071 is provided on the connecting plate.

[0038] The first positioning block 109 on the upper die 107 on the replacement table 105 extends out of the first movable slot. At this time, the extension rod 1101 is on one side of the first positioning block 109. When replacing the upper die 107, the hydraulic cylinder 104 drives the upper die 107 to rise so that the upper die 107 resets to the initial position. The upper die 107 on the replacement table 105 and the upper die 107 on the connecting plate are on the same horizontal plane. Push the upper die 107 on the replacement table 105 towards the connecting plate. When the upper die 107 on the replacement table 105 moves, the side wall of the first positioning block 109 abuts against the extension rod 1101 and pushes the first push rod 110 to move. The first push rod 110 abuts against the guide slot 1091 and pushes the first positioning block 109 on the upper die 107 on the connecting plate into the first movable slot. The side wall of the upper die 107 on the replacement table 105 abuts against the side wall of the upper die 107 on the connecting plate. The upper die 107 on the replacement table 105 pushes the upper die 107 on the connecting plate to move. After the extension rod 1101 moves, it moves away from the bottom of the guide sleeve 112. After the push block 113 loses the supporting force, it moves downward under the action of gravity. The push block 113 pushes the first positioning block 109 downward into the first movable slot. The upper die 107 on the replacement table 105 continues to move until it completely moves to the bottom of the connecting plate. At the same time, the new upper die 107 pushes the original upper die 107 at the bottom of the connecting plate onto the loading table 106. When the upper die 107 moves, the guide block 1071 moves to the bottom of the connecting rod 1131 and pushes the connecting rod 1131 to move. The push block 113 rises together with the connecting rod 1131 so that the push block 113 moves away from one end of the extension rod 1101. The return spring 1103 pushes the slider 1102 to move back. The first push rod 110 enters the second movable slot. When the first positioning block 109 of the new upper die 107 moves to below the first positioning slot, the first connecting spring 1092 pushes the first positioning block 109 to insert into the first positioning slot, fixing the upper die 107 on the connecting plate and completing the replacement of the upper die 107.

[0039] The base 101 is provided with a mounting groove corresponding to the lower die 108. The side wall of the lower die 108 is provided with a third movable slot. A second positioning block 114 is arranged in the third movable slot. A second connecting spring 1141 is arranged on the second positioning block 114. One end of the second connecting spring 1141 is fixedly connected to the inner wall of the third movable slot. The inner wall of the mounting groove is provided with a second positioning slot corresponding to the second positioning block 114.

[0040] The side wall of the second positioning slot is provided with a fourth movable slot. A second push rod 115 and an electromagnet are arranged in the fourth movable slot. A third connecting spring 1151 is arranged on the second push rod 115. One end of the third connecting spring 1151 is fixedly connected to the inner wall of the fourth movable slot. The second push rod 115 is made of magnet.

[0041] When replacing the lower die 108, the electromagnet is energized to push the second push rod 115 to move outwards from the fourth movable slot. The second push rod 115 pushes the second positioning block 114 in the second positioning slot to move outwards. The second positioning block 114 disengages from the second positioning slot, and a new lower die 108 is pushed into the installation slot from one end of the installation slot. The new lower die 108 pushes the lower die 108 in the installation slot to move. The electromagnet is de-energized, and the third connecting spring 1151 pulls the second push rod 115 into the fourth movable slot. The second positioning block 114 on the new lower die 108 moves to one side of the second positioning slot and then inserts into the second positioning slot, completing the replacement of the lower die 108.

[0042] The necking die is replaced by a parallel pushing method, making the replacement of the die more convenient and fast. At the same time, with the settings of the first positioning block 109 and the second positioning block 114, the stability of the die connection is ensured, and the stability of the equipment use is ensured.

[0043] The above description is only some preferred embodiments of the present disclosure and an explanation of the applied technical principles. Those skilled in the art should understand that the scope of the utility model involved in the embodiments of the present disclosure is not limited to the technical solutions formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above utility model concept. For example, the technical solutions formed by mutually replacing the above features with the technical features (but not limited to) having similar functions disclosed in the embodiments of the present disclosure.

Claims

1. A steel pipe shrinking device for convenient replacement of shrinking molds, comprising a base, a mounting rod, a mounting plate, a hydraulic cylinder and a shrinking mold, wherein the mounting rod is fixedly connected to the base, and the mounting plate is fixedly connected to the top of the mounting rod; the hydraulic cylinder is arranged on the mounting plate, and the shrinking mold comprises an upper mold and a lower mold, wherein the upper mold is connected to the piston rod of the hydraulic cylinder, and the lower mold is located on the base; characterized in that: A replacement platform is provided on one side of the base, and a loading platform is provided on the other side. The replacement platform and the loading platform have the same height. When the hydraulic cylinder drives the upper mold to rise to the initial position, the top surface of the replacement platform is flush with the bottom surface of the upper mold. When the upper mold placed on the replacement platform moves toward the bottom of the hydraulic cylinder, the upper mold at the bottom of the hydraulic cylinder moves toward the loading platform.

2. The steel pipe necking device for conveniently replacing necking dies according to claim 1 is characterized in that: A connecting plate is provided on the piston rod of the hydraulic cylinder, a connecting block is provided on the upper die, and a connecting groove corresponding to the connecting block is provided on the connecting plate.

3. The steel pipe necking device for conveniently replacing necking dies according to claim 2 is characterized in that: The connecting block has a T-shaped structure, a first positioning block is provided on the connecting block, and a first positioning groove corresponding to the first positioning block is provided on the top of the connecting groove.

4. The steel pipe necking device for conveniently replacing necking dies according to claim 3 is characterized in that: The connecting block is provided with a first movable groove, the first positioning block is located in the first movable groove, a first connecting spring is provided at the bottom of the first positioning block, and one end of the first connecting spring is fixedly connected to the bottom surface of the first movable groove.

5. The steel pipe necking device for conveniently replacing necking dies according to claim 4 is characterized in that: A second movable groove is provided on the side wall of the first positioning groove, a first push rod is provided on the side wall of the second movable groove, and a guide groove is provided on the first positioning block, and the position of the guide groove is aligned with the position of the second movable groove.

6. The steel pipe necking device for conveniently replacing necking dies according to claim 5 is characterized in that: The first push rod is provided with an extension rod, and the extension rod passes through the connecting plate; the first push rod is provided with a sliding block, and the inner wall of the second movable groove is provided with a sliding groove for the sliding block to move, and the sliding block is provided with a reset spring.

7. The steel pipe necking device for conveniently replacing necking dies according to claim 6 is characterized in that: A connecting frame is arranged on the mounting plate, a guide sleeve is arranged on the connecting frame, a push block is arranged in the guide sleeve, and the extension rod is located at the bottom of the guide sleeve.

8. The steel pipe necking device for conveniently replacing necking dies according to claim 7 is characterized in that: The push block is provided with a connecting rod, the upper die is provided with a guide block, and the connecting plate is provided with a through groove corresponding to the guide block.

9. The steel pipe necking device for conveniently replacing necking dies according to claim 1, characterized in that: The base is provided with an installation groove corresponding to the lower mold, the side wall of the lower mold is provided with a third movable groove, the third movable groove is provided with a second positioning block, the second positioning block is provided with a second connecting spring, one end of the second connecting spring is fixedly connected to the inner wall of the third movable groove; the inner wall of the installation groove is provided with a second positioning groove corresponding to the second positioning block.

10. The steel pipe necking device for conveniently replacing necking dies according to claim 9, characterized in that: A fourth movable groove is provided on the side wall of the second positioning groove, a second push rod and an electromagnet are provided in the fourth movable groove, a third connecting spring is provided on the second push rod, one end of the third connecting spring is fixedly connected to the inner wall of the fourth movable groove, and the second push rod is made of a magnet.

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