Forming die for hollow pipe of automobile shock absorber

Abstract

The utility model relates to the field of automobile shock absorber accessory machining, in particular to an automobile shock absorber hollow pipe forming die which comprises a lower die base arranged on a fixing base, a bottom plate is horizontally arranged at the bottom of the fixing base, an upper die base is arranged on the upper portion of the lower die base, and the surface of the top end of the lower die base is attached to the surface of the bottom end of the upper die base. Insert mechanisms are symmetrically installed on the upper surface of the lower die base, by arranging the replaceable insert mechanisms, when the diameter of an inner hole of a hollow pipe needs to be changed, only the insert mechanisms with inserts of different diameters need to be replaced, the positioning plates are matched with the positioning columns for positioning and fixing, it can be guaranteed that the insert mechanisms are fixed to the lower die base, and therefore the inner hole diameter of the hollow pipe can be changed. And the position of the insert in the forming cavity is ensured to be the center, so that when hollow pipes with different inner hole diameters need to be formed and cast, only the insert mechanism needs to be replaced, the lower die base does not need to be replaced, and the forming and processing cost can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile shock absorber accessories processing, in particular to a hollow tube forming die for an automobile shock absorber. Background Art

[0002] Automobile shock absorber, also known as shock absorber or vibration absorber, is a device used in automobiles to absorb vibration and improve ride comfort. It is mainly used in suspension systems and other locations such as cabs, seats, steering wheels, etc. to play a buffering role to reduce the impact of vibrations caused by uneven roads or vehicle movement on passengers and the vehicle itself. One of the accessories of automobile shock absorbers is called hollow tube, and most of the hollow tube processing methods use molding molds for one-time casting molding.

[0003] However, the molding cavity sizes of many molding dies cannot be changed, so the sizes of hollow tubes after casting are all consistent. If hollow tubes of different sizes are required, different lower mold seats can only be replaced for casting, but the cost will be higher. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and provides a hollow tube forming die for an automobile shock absorber.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A hollow tube forming die for automobile shock absorber, comprising a lower die seat, the lower die seat is arranged on a fixed seat, a bottom plate is horizontally arranged at the bottom of the fixed seat, an upper die seat is arranged on the upper part of the lower die seat, the top surface of the lower die seat is in contact with the bottom surface of the upper die seat, and an insert mechanism is symmetrically installed on the upper surface of the lower die seat;

[0007] A positioning column is arranged on the side wall of one side of the lower die seat, a positioning plate and a plurality of nuts are installed on the positioning column, a threaded portion for installing the nut is opened on the positioning column, and the positioning plate can position and clamp the insert mechanism.

[0008] In addition, a preferred structure is that a flow channel is opened in the middle of the upper surface of the lower mold base, and a plurality of cylindrical molding cavities are symmetrically opened on both sides of the flow channel on the upper surface of the lower mold base, and the flow channels are connected to the molding cavities on both sides.

[0009] In addition, a preferred structure is that the insert mechanism includes a fixed plate, and a plurality of inserts are fixedly connected to one side of the bottom end surface of the fixed plate body, the inserts are cylindrical, and each insert is arranged in the molding cavity.

[0010] In addition, a preferred structure is that the fixing plate has symmetrically provided holes on one side of the plate away from the insert, the holes are used to install the positioning plate, and positioning openings are provided between the holes, the positioning openings are used to install at the positioning columns.

[0011] In addition, a preferred structure is that a through hole is opened through the middle of the positioning plate body, the diameter of the through hole is larger than the diameter of the positioning column, and plug columns are symmetrically arranged on the side wall of one side of the positioning plate body, and the diameter of the plug column is consistent with the diameter of the plug hole.

[0012] In addition, a preferred structure is that an injection port is provided at the bottom surface of the upper mold base, and grooves are symmetrically provided on both sides of the bottom surface of the upper mold base, and the fixing plate can be clamped into the grooves.

[0013] The beneficial effects of the utility model are as follows: by setting up a replaceable insert mechanism, when it is necessary to change the inner hole diameter of the hollow tube, it is only necessary to replace the insert mechanism with inserts of different diameters, and the positioning plate cooperates with the positioning column for positioning and fixing, which can ensure that the insert mechanism is fixed on the lower die seat, and ensure that the position of the insert in the molding cavity is at the center. In this way, when it is necessary to mold and cast hollow tubes with different inner hole diameters, it is only necessary to replace the insert mechanism without replacing the lower die seat, which can effectively reduce the cost of molding processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the forming mold;

[0015] Figure 2 It is a structural schematic diagram of the upper die base;

[0016] Figure 3 It is a structural schematic diagram of the lower die base;

[0017] Figure 4 is a cross-sectional view of the lower die base;

[0018] Figure 5 It is a schematic diagram of the structure after the insert mechanism is separated from the lower die base;

[0019] Figure 6 It is a structural schematic diagram of the insert mechanism.

[0020] In the figure: 1 bottom plate, 2 fixed seat, 3 lower mold seat, 31 runner, 32 molding cavity, 4 upper mold seat, 41 groove, 42 injection port, 5 insert mechanism, 51 fixed plate, 52 plug hole, 53 positioning port, 54 insert, 6 fixed guide column, 7 top plate, 8 positioning column, 9 positioning plate, 91 through hole, 92 plug column, 10 nut. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-6 A hollow tube forming mold for automobile shock absorber, comprising a lower die seat 3, the lower die seat 3 is arranged on a fixed seat 2, a bottom plate 1 is horizontally arranged at the bottom of the fixed seat 2, an upper die seat 4 is arranged on the upper part of the lower die seat 3, the top surface of the lower die seat 3 is in contact with the bottom surface of the upper die seat 4, and an insert mechanism 5 is symmetrically installed on the upper surface of the lower die seat 3;

[0023] A positioning column 8 is provided on the side wall of one side of the lower mold base 3, and a positioning plate 9 and a plurality of nuts 10 are installed on the positioning column 8. A threaded portion for installing the nut 10 is opened on the positioning column 8, and the positioning plate 9 can position and clamp the insert mechanism 5. A fixed guide column 6 is provided on the fixed base 2 for positioning and installing the upper mold base 4 and the lower mold base 3, and a top plate 7 is provided on the top. These are all existing technologies of molding molds and are well known to people in this field. There is no need to elaborate on their structure and installation method.

[0024] Among them, a flow channel 31 is opened in the middle of the upper surface of the lower mold base 3, and multiple cylindrical molding cavities 32 are symmetrically opened on both sides of the flow channel 31 on the upper surface of the lower mold base 3, and the flow channel 31 is connected to the molding cavities 32 on both sides. The multiple molding cavities 32 are convenient for one-time casting and molding of multiple hollow tubes.

[0025] In addition, the insert mechanism 5 includes a fixed plate 51, and a plurality of inserts 54 are fixedly connected to one side of the bottom surface of the fixed plate 51. The insert 54 is cylindrical, and each insert 54 is arranged in the molding cavity 32. The insert 54 is used for molding the hollow part of the hollow tube body, and the insert mechanism 5 with inserts 54 of different sizes can be replaced, so that hollow tubes with different inner hole diameters can be cast and molded, and this can be completed without replacing the lower mold base 3.

[0026] In addition, a side of the fixing plate 51 away from the insert 54 is symmetrically provided with holes 52, the holes 52 are used to install the positioning plate 9, and a positioning opening 53 is provided between the holes 52, the positioning opening 53 is used to install on the positioning column 8, the holes 52 facilitate the installation of the positioning plate 9, and thus cooperate with the positioning column 8 to install and fix the fixing plate 51.

[0027] In addition, a through hole 91 is opened through the middle of the positioning plate 9, and the diameter of the through hole 91 is larger than the diameter of the positioning column 8. Plug columns 92 are symmetrically arranged on the side wall of one side of the positioning plate 9. The diameter of the plug column 92 is consistent with the diameter of the hole 52. The plug column 92 can be inserted into the hole 52, so as to position and clamp the fixing plate 51.

[0028] In addition, an injection port 42 is provided at the bottom surface of the upper mold base 4 , and grooves 41 are symmetrically provided on both sides of the bottom surface of the upper mold base 4 , into which the fixing plate 51 can be inserted, and the grooves 41 facilitate the fixing of the fixing plate 51 .

[0029] In this embodiment, the molten metal to be poured into the molding cavity 32 is input through the upper mold base 4, the molten metal flows into the runner 31 from the injection port 42, and then the molten metal flows into each molding cavity 32 on both sides from the runner 31, and then the metal solidifies into a hollow tube under the intervention of the insert 54, and then it can be demolded and taken out. When it is necessary to change the inner hole diameter of the molded hollow tube, the insert mechanism 5 can be removed.

[0030] After the locating plate 9 is fixed, the fixing plate 51 can be taken out vertically, and each insert 54 is separated from the molding cavity 32 at the same time. Then, the insert 54 with the required diameter is replaced and placed vertically on the lower mold base 3 to ensure that each insert 54 enters the molding cavity 32 on both sides and the positioning port 53 falls on the positioning column 8 to ensure that when the locating plate 9 is passed on the positioning column 8, the plug posts 92 on both sides can be aligned with the plug holes 52 on both sides. After adjusting the position, push the locating plate 9 forward so that the plug posts 92 can be inserted into the plug holes 52. Then, screw on the nut 10 to fix the locating plate 9. The positioning column 8 plays an effective positioning and fixing role. After the locating plate 9 is fixed, the fixing plate 51 can be fixed so that it can be installed in the correct position to ensure that the insert 54 is in the center of the molding cavity 32. Then, the hollow tube batch casting molding can be carried out.

[0031] In the utility model, a replaceable insert mechanism 5 is provided. When the inner hole diameter of the hollow tube needs to be changed, it is only necessary to replace the insert mechanism 5 with the insert 54 of different diameter. In addition, the positioning plate 9 cooperates with the positioning column 8 for positioning and fixing. It can ensure that the insert mechanism 5 is fixed on the lower die base 3 and that the position of the insert 54 in the molding cavity 32 is at the center. In this way, when it is necessary to mold and cast hollow tubes with different inner hole diameters, it is only necessary to replace the insert mechanism 5 without replacing the lower die base 3, which can effectively reduce the cost of molding processing.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hollow tube forming die for automobile shock absorber, comprising a lower die base (3), characterized in that: The lower die base (3) is arranged on the fixed base (2), a bottom plate (1) is horizontally arranged at the bottom of the fixed base (2), an upper die base (4) is arranged on the upper part of the lower die base (3), the top surface of the lower die base (3) is in contact with the bottom surface of the upper die base (4), and an insert mechanism (5) is symmetrically installed on the upper surface of the lower die base (3); A positioning column (8) is provided on a side wall of one side of the lower die base (3), a positioning plate (9) and a plurality of nuts (10) are installed on the positioning column (8), a threaded portion for installing the nuts (10) is provided on the positioning column (8), and the positioning plate (9) can position and clamp the insert mechanism (5).

2. The automobile shock absorber hollow tube forming mold according to claim 1, characterized in that: A flow channel (31) is provided in the middle of the upper surface of the lower die seat (3), and a plurality of cylindrical molding cavities (32) are symmetrically provided on the upper surface of the lower die seat (3) on both sides of the flow channel (31), and the flow channel (31) is communicated with the molding cavities (32) on both sides.

3. The automobile shock absorber hollow tube forming mold according to claim 1, characterized in that: The insert mechanism (5) comprises a fixed plate (51), and a plurality of inserts (54) are fixedly connected to one side of the bottom surface of the fixed plate (51), the inserts (54) are cylindrical, and each insert (54) is arranged in the molding cavity (32).

4. The automobile shock absorber hollow tube forming mold according to claim 3, characterized in that: The fixing plate (51) has symmetrically provided insertion holes (52) on one side of the plate body away from the insert (54), the insertion holes (52) being used to install the positioning plate (9), and positioning openings (53) being provided between the insertion holes (52), the positioning openings (53) being used to install at the positioning column (8).

5. The automobile shock absorber hollow tube forming mold according to claim 4, characterized in that: A through hole (91) is provided in the middle of the positioning plate (9), the diameter of the through hole (91) is larger than the diameter of the positioning column (8), and plug columns (92) are symmetrically arranged on a side wall of one side of the positioning plate (9), the diameter of the plug columns (92) is consistent with the diameter of the plug holes (52).

6. The automobile shock absorber hollow tube forming mold according to claim 1, characterized in that: An injection port (42) is provided at the bottom surface of the upper mold base (4), and grooves (41) are symmetrically provided on both sides of the bottom surface of the upper mold base (4), and the fixing plate (51) can be clamped into the grooves (41).

Images