Groove forming die

Abstract

The utility model provides a groove forming die, which relates to the technical field of groove processing dies and comprises a lower die, an upper die and an inner support, the upper die is arranged above the lower die, the inner support is arranged in the middle of the lower die, side connecting sliding columns are fixed on two sides of the head end of the inner support, an upper sliding frame is vertically arranged at the head end of the inner support in a sliding mode, and the upper sliding frame is connected with the lower sliding frame in a sliding mode. A middle connecting rotating shaft is fixed to the middle of the upper sliding frame, upper supporting plates are rotationally connected to the two sides of the middle connecting rotating shaft, middle jacking columns vertically sliding are arrayed on the inner support at intervals, middle supporting elastic pieces are fixed to the bottoms of the middle jacking columns, and the lower ends of the middle supporting elastic pieces are fixedly connected with the inner support. And the upper supporting plate is converted into the horizontal state, the upper supporting plate and the inner wall of the circular pipe are attached and supported, the upper supporting plate does not need to be taken out independently, and the problems that after the circular pipe is machined, the supporting plate is separated from the circular pipe, the machining procedure is increased due to arrangement of the supporting plate, and the machining time of the circular pipe is prolonged are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of groove processing molds, in particular to a groove forming mold. Background Art

[0002] A groove forming mold is a processing tool used to form grooves or specific shapes on various materials. The groove forming mold consists of an upper mold and a lower mold. The upper and lower molds are closed to perform groove forming processing on the material in the middle.

[0003] In the processing of the groove of a round tube, the round tube is placed in the groove of the lower mold, and then a horizontal support plate is placed inside the round tube. The horizontal support plate fits the inner wall of the round tube. The support plate provides auxiliary support for the round tube, so that the force during the groove processing of the round tube does not cause deformation at other positions of the round tube. After the processing of the round tube is completed, the support plate and the round tube are separated. The placement of the support plate increases the processing procedure and the time for taking out and placing the round tube. Summary of the Invention

[0004] An embodiment of the present disclosure relates to a groove forming mold. After the lower mold and the upper mold are closed, the upper support plate turns into a horizontal state and fits and supports the inner wall of the round tube, ensuring that the force during the groove processing of the round tube does not cause deformation at other positions, and the upper support plate does not require a separate taking-out operation; after the lower mold and the upper mold are separated, the middle ejector post supports the middle connecting rotating shaft and the upper support plate to move upward, and the upper support plate tilts upward, and the width of the upper support plate becomes narrower and no longer fits the inner wall of the round tube, facilitating the taking-out and placing of the round tube and reducing the time for taking out and placing the round tube.

[0005] In a first aspect of the present disclosure, there is provided a groove forming mold, which specifically includes: a lower mold, an upper mold and an inner bracket. The upper mold is arranged above the lower mold, the inner bracket is arranged in the middle of the lower mold, a lower connecting frame is fixedly arranged on the side of the lower mold, and an upper support spring is fixedly arranged on the top of the lower connecting frame.

[0006] In at least some embodiments, upper connecting frames are fixedly arranged on both sides of the upper mold, a lower pressing frame is slidably arranged at the lower part of the upper mold, and an upper support spring is arranged between the upper connecting frame and the lower pressing frame.

[0007] In at least some embodiments, side connecting sliding columns are fixedly arranged on both sides of the head end of the inner bracket, an upper sliding frame vertically slides at the head end of the inner bracket, a middle connecting rotating shaft is fixedly arranged in the middle of the upper sliding frame, upper support plates are rotatably connected to both sides of the middle connecting rotating shaft, and middle ejector posts that vertically slide are arranged at intervals in the inner bracket.

[0008] In at least some embodiments, the upper end of the upper support spring is fixedly connected to the side connection sliding column, the side connection sliding column and the lower connection frame are slidably connected through, the upper support spring supports the inner bracket and the lower pulley to move upward, and there is a certain interval between the upward movement of the lower pulley and the semi-circular groove of the lower mold to facilitate the sliding installation of the round tube.

[0009] In at least some embodiments, a middle support elastic member is fixed to the bottom of the middle top column, the lower end of the middle support elastic member is fixedly connected to the inner bracket, and rotating lower pulleys are arranged at intervals in an array at the bottom of the inner bracket, and the lower pulleys assist in supporting the inner bracket and the inner wall of the round tube.

[0010] In at least some embodiments, the middle top column is vertically below the middle connection rotating shaft, the top of the middle top column is in contact with the upper support plate, the middle top column supports the middle connection rotating shaft and the upper support plate to tilt upward, and the width of the two upper support plates after tilting becomes narrower and no longer fits the inner wall of the round tube.

[0011] In at least some embodiments, when the lower mold and the upper mold are closed, the lower pressing frame and the upper sliding frame are in contact, the bottom of the upper support plate and the inner bracket are horizontally in contact, the upper support plate maintains a horizontal state, and the two horizontally arranged upper support plates are in contact with and support the inner wall of the round tube.

[0012] The present utility model provides a groove forming mold, which has the following beneficial effects:

[0013] After the lower mold and the upper mold are closed, the upper support plate turns to a horizontal state, and the upper support plate is in contact with and supports the inner wall of the round tube, ensuring that the force during the processing of the round tube groove does not cause deformation at other positions, and there is no need to separately take out the upper support plate for operation.

[0014] After the lower mold and the upper mold are separated, the middle top column supports the middle connection rotating shaft and the upper support plate to move upward, the upper support plate tilts upward, and the width of the upper support plate becomes narrower and no longer fits the inner wall of the round tube, facilitating the taking out and placing of the round tube, and reducing the time for taking out and placing the round tube.

[0015] The lower pulley rotates in contact with the inner wall of the round tube, the upper support spring supports the inner bracket and the lower pulley to move upward, the lower pulley reduces the frictional pressure with the round tube, the resistance during the taking out and placing of the round tube is smaller, and it is more convenient to install the round tube. During the groove forming process, the lower pulley simultaneously assists in supporting the inner bracket and the inner wall of the round tube, improving the stability of the round tube processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings of the embodiments will be briefly introduced below.

[0017] The drawings in the following description only relate to some embodiments of the present utility model and do not limit the present utility model.

[0018] In the drawings:

[0019] Figure 1 A schematic diagram showing the overall structure of the present application;

[0020] Figure 2 A schematic diagram showing the structure of the lower mold of the present application;

[0021] Figure 3 A schematic diagram showing the cross-sectional structure of the inner bracket of the present application;

[0022] Figure 4 A schematic diagram showing the structure of the upper mold of the present application;

[0023] Figure 5 A schematic diagram showing the structure of the inner bracket in a disassembled state of the present application;

[0024] Figure 6 A schematic diagram showing the structure of the present application in a disassembled state;

[0025] List of reference numerals

[0026] 1. Lower mold; 101. Lower connecting frame; 102. Upper support spring;

[0027] 2. Upper mold; 201. Upper connecting frame; 202. Lower pressing frame;

[0028] 3. Inner bracket; 301. Side connecting sliding column; 302. Upper sliding frame; 303. Middle connecting rotating shaft; 304. Upper support plate; 305. Middle top column; 306. Lower pulley; 307. Middle support elastic member. Detailed implementation manners

[0029] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0030] Embodiment 1: Please refer to Figures 1 to 6 :

[0031] The present utility model provides a groove forming die, comprising: a lower die 1, an upper die 2 and an inner bracket 3. A lower connecting frame 101 is fixedly arranged on the side of the lower die 1, and an upper supporting spring 102 is fixedly arranged on the top of the lower connecting frame 101. An upper die 2 is arranged above the lower die 1. Upper connecting frames 201 are fixedly arranged on both sides of the upper die 2. A lower pressing frame 202 is slidably arranged at the lower part of the upper die 2. An upper supporting spring 102 is arranged between the upper connecting frame 201 and the lower pressing frame 202. An inner bracket 3 is arranged in the middle of the lower die 1. Side connecting sliding columns 301 are fixedly arranged on both sides of the first end of the inner bracket 3. An upper sliding frame 302 is vertically slidable at the first end of the inner bracket 3. A middle connecting rotating shaft 303 is fixedly arranged in the middle of the upper sliding frame 302. Upper supporting plates 304 are rotatably connected to both sides of the middle connecting rotating shaft 303. Middle top columns 305 which slide vertically are arranged at intervals in the inner bracket 3. The upper end of the upper supporting spring 102 is fixedly connected to the side connecting sliding column 301. The side connecting sliding column 301 and the lower connecting frame 101 are slidably connected through each other. The upper supporting spring 102 supports the inner bracket 3 and the lower pulley 306 to move upward. The upward movement of the lower pulley 306 has a certain interval from the semi-circular groove of the lower die 1 to facilitate the sliding installation of the round tube.

[0032] In an embodiment of the present disclosure, a middle supporting elastic member 307 is fixedly arranged at the bottom of the middle top column 305. The lower end of the middle supporting elastic member 307 is fixedly connected to the inner bracket 3. Lower pulleys 306 which rotate are arranged at intervals at the bottom of the inner bracket 3. The lower pulleys 306 assist in supporting the inner bracket 3 and the inner wall of the round tube, improving the stability of round tube processing.

[0033] In an embodiment of the present disclosure, the middle top column 305 is vertically below the middle connecting rotating shaft 303. The top of the middle top column 305 is in contact with the upper supporting plate 304. The middle top column 305 supports the middle connecting rotating shaft 303 and the upper supporting plate 304 to tilt upward. The width of the two upper supporting plates 304 after tilting becomes narrower and no longer fits the inner wall of the round tube. A gap space is formed between the upper supporting plate 304 and the round tube, facilitating the removal and placement of the round tube. The existence of the gap space facilitates the alignment work when the round tube is placed, further reducing the time for removing and placing the round tube.

[0034] In an embodiment of the present disclosure, when the lower die 1 and the upper die 2 are closed, the lower pressing frame 202 is in contact with the upper sliding frame 302. The bottom of the upper supporting plate 304 is horizontally in contact with the inner bracket 3. The upper supporting plate 304 maintains a horizontal state. The two horizontal upper supporting plates 304 are in contact with and support the inner wall of the round tube, ensuring that no deformation occurs at other positions of the round tube during the processing of the round tube groove.

[0035] In Embodiment 2, on the basis of Embodiment 1, the middle top column 305 is omitted. The middle supporting elastic member 307 directly makes sliding contact with the upper supporting plate 304. The middle supporting elastic member 307 supports the upper supporting plate 304 to tilt upward, reducing the number of components, and lowering the assembly cost and assembly efficiency.

[0036] Working principle of this embodiment: The lower mold 1 is fixed to the lower workbench of the hydraulic press, and the upper mold 2 is fixed to the lifting mechanism of the hydraulic press. The upper mold 2 moves downward to press the steel pipe in the top groove of the lower mold 1 to perform the groove forming operation. The inner support 3 is located inside the semi-circular groove of the lower mold 1. The outer part of the round pipe is slidably fitted with the semi-circular groove of the lower mold 1, and the inner side of the round pipe is fitted with the lower pulley 306. The upper support spring 102 supports the inner support 3 and the lower pulley 306 to move upward. The upward movement of the lower pulley 306 has a certain interval from the semi-circular groove of the lower mold 1, which is convenient for the sliding installation of the round pipe. The upward support of the upper support spring 102 for the lower pulley 306 can reduce the friction and downward pressure on the round pipe, and the resistance during the removal and placement of the round pipe is smaller, making it more convenient for the installation of the round pipe. After the lower mold 1 and the upper mold 2 are closed, during the groove forming process, the lower pulley 306 and the inner support 3 synchronously descend and press down the upper support spring 102. The lower pulley 306 remains in contact with the inner wall of the round pipe, and the lower pulley 306 provides auxiliary support for the inner support 3 and the inner wall of the round pipe, improving the stability of the round pipe processing. The upper support plate 304 does not need to be taken out separately;

[0037] During the process of the upper mold 2 moving downward and the lower mold 1 closing, the upper mold 2, the lower connecting frame 101, and the lower pressing frame 202 move downward synchronously. The lower pressing frame 202 presses down in contact with the upper sliding frame 302. The upper sliding frame 302, the middle connecting rotating shaft 303, and the upper support plate 304 move downward synchronously. The two upper support plates 304 are in contact with the top plane of the inner support 3. The upper support plates 304 turn into a horizontal state. The two horizontal upper support plates 304 are in contact with and support the inner wall of the round pipe, ensuring that the round pipe does not deform at other positions during the groove processing of the round pipe;

[0038] After the groove is formed, after the upper mold 2 moves upward and separates from the lower mold 1, the middle support spring 307 supports the middle top column 305 to move upward. The middle top column 305 supports the middle connecting rotating shaft 303 and the upper support plate 304 to move upward. The middle connecting rotating shaft 303 and the upper sliding frame 302 move upward synchronously. One side of the upper support plate 304 close to the middle connecting rotating shaft 303 tilts upward synchronously. The width of the two upper support plates 304 after tilting becomes narrower and no longer fits the inner wall of the round pipe. There is a gap space between the upper support plate 304 and the round pipe, which is convenient for the removal and placement of the round pipe. The existence of the gap space is convenient for the alignment work when placing the round pipe, further reducing the time for removing and placing the round pipe; The upper support spring 102 supports the side connecting sliding column 301 and the inner support 3 to move upward synchronously. The inner support 3 and the lower pulley 306 move upward. The upward movement of the lower pulley 306 can reduce the downward pressure on the round pipe, facilitating the removal of the round pipe.

[0039] In this article, the following points need to be noted:

[0040] 1. The drawings of the embodiments of this disclosure only relate to the structures involved in the embodiments of this disclosure. Other structures can refer to the general design.

[0041] 2. Without conflict, the embodiments of the present disclosure and the features in the embodiments may be combined with each other to obtain new embodiments.

[0042] The above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

1. A groove forming die, comprising: Lower die (1), upper die (2) and inner support (3); characterized in that an upper die (2) is arranged above the lower die (1), an inner support (3) is arranged in the middle of the lower die (1), side connection sliding columns (301) are fixed on both sides of the head end of the inner support (3), an upper sliding frame (302) slides vertically at the head end of the inner support (3), a middle connection rotating shaft (303) is fixed in the middle of the upper sliding frame (302), upper support plates (304) are rotatably connected on both sides of the middle connection rotating shaft (303), and middle top columns (305) that slide vertically are arranged at intervals in an array on the inner support (3).

2. The groove forming die according to claim 1, characterized in that A lower connection frame (101) is fixedly arranged on the side of the lower die (1), and an upper support spring (102) is fixedly arranged on the top of the lower connection frame (101).

3. The groove forming die according to claim 2, characterized in that Upper connection frames (201) are fixedly arranged on both sides of the upper die (2), a lower pressing frame (202) slides on the lower part of the upper die (2), and an upper support spring (102) is arranged between the upper connection frame (201) and the lower pressing frame (202).

4. The groove forming die according to claim 3, characterized in that The upper end of the upper support spring (102) is fixedly connected to the side connection sliding column (301), and the side connection sliding column (301) is slidably connected through the lower connection frame (101).

5. The groove forming die according to claim 4, characterized in that A middle support elastic member (307) is fixed at the bottom of the middle top column (305), the lower end of the middle support elastic member (307) is fixedly connected to the inner support (3), and rotating lower pulleys (306) are arranged at intervals in an array at the bottom of the inner support (3).

6. The groove forming die according to claim 5, characterized in that The middle top column (305) is vertically below the middle connection rotating shaft (303), the top of the middle top column (305) is in contact with the upper support plate (304), and the middle top column (305) supports the middle connection rotating shaft (303) and the upper support plate (304) to tilt upward.

7. The groove forming die according to claim 6, characterized in that When the lower die (1) and the upper die (2) are closed, the lower pressing frame (202) is in contact with the upper sliding frame (302), the bottom of the upper support plate (304) is horizontally in contact with the inner support (3), and the upper support plate (304) maintains a horizontal state.

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