Mould pressing tool for repairing laminated retainer

Abstract

The utility model discloses a mould pressing tool for repairing a laminated retainer, which belongs to the technical field of repairing of the laminated retainer and comprises an upper mould base, a lower mould base, a lower mould base and a mould pressing block, and the bottom end of the upper mould base is abutted against an upper metal framework of the laminated retainer; the middle mold plate is arranged at the bottom end of the upper mold base and abuts against the upper mold base; the middle template is provided with a charging cavity; the auxiliary frame is of a frame structure with an upper opening and a lower opening; the lower die holder is arranged at the bottom end of the middle die plate; and the lower die holder is provided with the anti-skid assembly which is matched with the lower metal framework. According to the utility model, the metal sheet is placed in the auxiliary frame and is uniformly laid on the rubber strip blank in the charging cavity, so that the metal sheet is placed in the middle of the cavity and the distribution uniformity of the rubber layer in the rubber layer and the metal sheet is ensured. Therefore, the problem that the built-in metal sheet of the laminated retainer processed in the prior art deviates to different degrees is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of laminated stopper repair, in particular to a laminated stopper repair molding tool. Background Art

[0002] In the helicopter main suspension, the function of the laminated stopper is to absorb the vibration generated during the operation of the main rotor system. It is mainly composed of three parts: the upper metal frame, the rubber layer and the lower metal frame. As one of the shock-absorbing accessories, the laminated stopper is subjected to alternating loads in the three directions of shear, tension and compression. The rubber layer often has bonding peeling, cracks, bulges and other phenomena, resulting in a very high scrap rate. Therefore, the laminated stopper needs to be maintained and repaired frequently;

[0003] In the prior art, due to different mold tooling structures, the laminated stoppers produced may have internal metal sheets that are offset to varying degrees, resulting in laminated stoppers that are not long-lasting in use or cannot fully meet use requirements. Utility Model Content

[0004] In order to solve the problem that the internal metal sheet of the processed laminated stopper has different degrees of deviation, the utility model provides a laminated stopper repair molding tool, including:

[0005] An upper die seat, the bottom end of which abuts against an upper metal frame of the laminated stopper to achieve positioning of the upper metal frame;

[0006] A middle mold plate, which is arranged at the bottom end of the upper mold base and abuts against the upper mold base;

[0007] The middle template is provided with an opening, the opening is a loading cavity, the loading cavity passes through the center of the middle template from top to bottom, and the loading cavity is adapted to the rubber layer of the laminated stopper;

[0008] An auxiliary frame, the auxiliary frame is a frame structure with upper and lower openings, the auxiliary frame is arranged in the charging cavity, and the auxiliary frame and the charging cavity are detachably connected;

[0009] A lower die seat, the lower die seat is arranged at the bottom end of the middle die plate and abuts against the middle die plate;

[0010] An anti-skid component is arranged on the lower die base, and the anti-skid component cooperates with the lower metal frame to prevent the lower metal frame from sliding and deviating.

[0011] Optionally, positioning holes are provided at the four corners of the upper mold base, the middle mold plate and the lower mold base, the three positioning holes at each corner form a group, the three positioning holes in each group are coaxially arranged, and a positioning pin is commonly provided in each group of the positioning holes to realize the positioning of the upper mold base, the middle mold plate and the lower mold base through the positioning pins.

[0012] Optionally, the upper die seat comprises:

[0013] An upper mold plate, the upper mold plate contacts the external punch and is used to compact the laminated stopper when the mold is closed;

[0014] Two outer top blocks, which are arranged at the bottom end of the upper template and parallel to the two sides of the auxiliary frame, and the lower ends of the outer top blocks are in contact with the upper end of the middle template;

[0015] The inner top block is arranged at the bottom end of the upper template and is located between the two outer top blocks. The bottom end of the inner top block is in contact with the upper metal frame.

[0016] Optionally, the lower die base comprises:

[0017] The lower template is a plate-like structure with a flat bottom, and is used to bear the weight of the entire mold;

[0018] Two outer limiting blocks, the two outer limiting blocks are symmetrically arranged at the top of the lower template, and the two outer limiting blocks are respectively located on both sides of the lower metal frame;

[0019] The inner limiting block is arranged between the two outer limiting blocks at the top end of the lower template, the lower metal frame is located between the two outer limiting blocks, and the top end of the inner limiting block abuts against the lower metal frame.

[0020] Optionally, the anti-slip component includes:

[0021] A jack, the jack is arranged through the two outer limiting blocks and the inner limiting block, and the jack is coaxially arranged with the through hole in the lower metal frame;

[0022] A fixing piece is inserted into the insertion hole and matched with the insertion hole.

[0023] Optionally, the fixing member is a cylindrical pin that matches the socket.

[0024] Optionally, a positioning groove is further provided at the lower end of the middle template, and the positioning groove matches the lower metal frame.

[0025] By adopting the above technical solution, the utility model mainly has the following technical effects:

[0026] In the utility model, by placing the metal sheet in the auxiliary frame, the metal sheet is evenly laid on the rubber strip blank in the loading cavity, so as to place the metal sheet in the middle of the cavity and ensure the uniformity of the rubber layer and the metal sheet in the rubber layer. That is, the problem of different degrees of deviation of the built-in metal sheet in the laminated stopper processed in the prior art is effectively solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of a laminated stopper repair molding tooling of the utility model;

[0028] Figure 2 It is a schematic diagram of the exploded structure of a laminated stopper repair molding tooling of the utility model;

[0029] Figure 3 It is a schematic diagram of the structure of the lower die base of a laminated stopper repair molding tool of the utility model;

[0030] The meanings of the reference numerals are as follows:

[0031] 1. Upper die base; 11. Upper die plate; 12. External ejector block; 13. Internal ejector block;

[0032] 2. Middle template; 21. Loading cavity; 22. Positioning groove;

[0033] 3. Auxiliary frame;

[0034] 4. Lower die base; 41. Lower die plate; 42. External limiting block; 43. Internal limiting block;

[0035] 5. Anti-slip assembly; 51. Socket; 52. Fixing piece;

[0036] 6. Positioning hole;

[0037] 7. Locating pin. DETAILED DESCRIPTION

[0038] In order to enable people in the technical field to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the specification of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment 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.

[0039] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0040] Example:

[0041] See also Figure 1-Figure 3 The utility model provides a laminated stopper repair molding tool, which, in actual application, is used to solve the problem that the built-in metal sheet of the processed laminated stopper has different degrees of deviation. The utility model includes an upper mold base 1, a middle mold plate 2, an auxiliary frame 3, a lower mold base 4 and an anti-slip component 5.

[0042] It should be clear that in the present invention, the upper metal frame, the rubber layer and the lower metal frame included in the laminated stopper are all prior art and will not be described here.

[0043] The bottom end of the upper mold base 1 abuts against the upper metal frame of the laminated stopper to achieve positioning of the upper metal frame. The middle mold plate 2 is arranged at the bottom end of the upper mold base 1 and abuts against the upper mold base 1. The middle mold plate 2 is a plate-like structure, wherein an opening is penetrated through the middle mold plate 2, and the opening is a loading cavity 21. The loading cavity 21 passes through the center of the middle mold plate 2 from top to bottom, and the loading cavity 21 is adapted to the rubber layer of the laminated stopper (that is, the shape and size of the loading cavity 21 match the shape and size of the rubber layer in the laminated stopper, and correspond to the positions of the upper metal frame and the lower metal frame in the mold). On the one hand, the loading cavity 21 is used to load rubber blanks of a specified rubber thickness. On the other hand, the loading cavity 21 connects the upper metal frame, the rubber layer and the lower metal frame to facilitate bonding of the rubber layer to the upper metal frame and the lower metal frame. The auxiliary frame 3 is a frame structure with upper and lower openings. The auxiliary frame 3 is arranged in the charging cavity 21, and the auxiliary frame 3 is detachably connected to the charging cavity 21. The auxiliary frame 3 is used to place the metal sheet required for the rubber layer. The lower die seat 4 is arranged at the bottom end of the middle die plate 2 and abuts against the middle die plate 2. The lower die seat 4 is used to position the lower metal frame of the laminated stopper. The anti-slip component 5 is arranged on the lower die seat 4. The anti-slip component 5 cooperates with the lower metal frame to prevent the lower metal frame from sliding and deflecting. In this embodiment, when loading, the staff places the lower metal frame on the lower die seat 4. After the lower metal frame is placed, the anti-deflection component is installed on the lower die seat 4 to fix the lower metal frame. Then, a layer of blank with a specified thickness of rubber is loaded into the loading cavity 21 on the middle template 2, and the auxiliary frame 3 is installed in the loading cavity 21. At this time, a metal sheet of a specified size is loaded into the auxiliary frame 3, so that the metal sheet slides to the upper end of the rubber blank, and then the rubber blank is loaded into the loading cavity 21 again. The above steps are repeated three times, and the three blanks are loaded in sequence. After the metal sheet and the four-layer rubber blank are assembled, the upper metal frame is placed in the upper die seat 1. At this time, the upper die seat 1, the middle die plate 2 and the lower die plate 41 are buckled together for mold closing and extrusion, so as to press the upper metal frame, the rubber layer and the lower metal frame, and then all three are bonded and fixed to complete the repair of the laminated stopper. In this embodiment, by placing the metal sheet in the auxiliary frame 3, it is evenly laid on the rubber strip blank in the loading cavity 21, so that the metal sheet is placed in the middle of the cavity and the uniformity of the rubber layer and the metal sheet distribution in the rubber layer is ensured. That is, the problem of different degrees of offset of the built-in metal sheet in the laminated stopper processed in the prior art is effectively solved.

[0044] In some embodiments, the upper mold base 1, the middle mold plate 2 and the lower mold base 4 are provided with positioning holes 6 at the four corners, and the three positioning holes 6 at each corner form a group, and the three positioning holes 6 in each group are coaxially arranged, and each group of positioning holes 6 is provided with positioning pins 7 to realize positioning of the upper mold base 1, the middle mold plate 2 and the lower mold base 4 through the positioning pins 7 (that is, the positioning pins are inserted into each group of positioning holes), so that the upper metal skeleton, the rubber layer and the lower metal skeleton of the laminated stopper are aligned with each other when the mold is closed, thereby improving the accuracy and stability of the bonding of the three. Preferably, the diameter of the two positioning pins 7 close to the head of the laminated stopper is larger than the diameter of the two positioning pins 7 on the other side, so that the staff can determine the head direction of the laminated stopper, which can ensure that the head of the laminated stopper produced each time is consistent, avoiding the errors and inconsistencies that may be caused by manual filling of the laminated stopper.

[0045] In this embodiment, the upper mold base 1 includes an upper mold plate 11, two outer top blocks 12 and an inner top block 13. The upper mold plate 11 is in contact with the external punch, and the upper mold plate is used to compact the laminated stopper when the mold is closed, and can make the mold force uniform. The two outer top blocks 12 are arranged at the bottom end of the upper mold plate 11 and are parallel to the two sides of the auxiliary frame 3. The lower ends of the outer top blocks 12 abut against the upper ends of the middle mold plate 2. The outer top blocks 12 can clamp the auxiliary frame 3 when the mold is closed to prevent the auxiliary frame 3 from shifting. The inner top block 13 is arranged at the bottom end of the upper mold plate 11 and is located between the two outer top blocks 12. The bottom end of the inner top block 13 abuts against the upper metal frame to achieve fixed positioning of the upper metal frame, so that the upper metal frame can be aligned with the rubber layer for bonding.

[0046] In this embodiment, the lower mold base 4 includes a lower mold plate 41, two outer limiting blocks 42 and an inner limiting block 43. The lower mold plate 41 is a plate-like structure with a flat bottom end, and the lower mold plate 41 is used to bear the weight of the entire mold. The two outer limiting blocks 42 are symmetrically arranged at the top of the lower mold plate 41, and the two outer limiting blocks 42 are respectively located on both sides of the lower metal skeleton. The outer limiting blocks 42 can limit the lower metal skeleton when the mold is closed to prevent it from sliding and deviating. The inner limiting block 43 is arranged between the two outer limiting blocks 42 at the top of the lower mold plate 41. The lower metal skeleton is located between the two outer limiting blocks 42, and the top of the inner limiting block 43 abuts against the lower metal skeleton. The inner limiting block 43 is used to support the lower metal skeleton to prevent it from being damaged due to excessive force when the mold is closed.

[0047] In this embodiment, the anti-slip assembly 5 includes a socket 51 and a fixing member 52. The socket 51 is arranged to penetrate the two outer limiting blocks 42 and the inner limiting block 43, and the socket 51 is coaxially arranged with the through hole in the lower metal frame. The fixing member 52 is inserted into the socket 51, and the fixing member 52 cooperates with the socket 51, and the fixing member 52 sequentially penetrates the socket 51 and the lower metal frame of the laminated stopper to fix the lower metal frame on the lower mold base 4. Preferably, the fixing member 52 is a cylindrical pin matching the socket 51.

[0048] In some embodiments, a positioning groove 22 is further provided at the lower end of the middle template 2, and the positioning groove 22 matches the lower metal frame, that is, the positioning groove 22 is highly adapted to the head of the lower metal frame, thereby preventing the middle template from damaging the lower metal frame during mold closing, and further positioning the lower metal frame.

[0049] Finally, it should be noted that the embodiments of the present invention disclose only preferred embodiments of the present invention, which 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 aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A laminated stopper repair molding tool, characterized in that: include: An upper die seat (1), the bottom end of which abuts against an upper metal frame of the laminated stopper to achieve positioning of the upper metal frame; A middle mold plate (2), the middle mold plate (2) being arranged at the bottom end of the upper mold base (1) and abutting against the upper mold base (1); The middle template (2) is provided with an opening, the opening being a loading cavity (21), the loading cavity (21) passing through the center of the middle template (2) from top to bottom, and the loading cavity (21) is adapted to the rubber layer of the laminated stopper; An auxiliary frame (3), the auxiliary frame (3) being a frame structure with upper and lower openings, the auxiliary frame (3) being arranged in the charging cavity (21), and the auxiliary frame (3) and the charging cavity (21) being detachably connected; A lower die base (4), the lower die base (4) being arranged at the bottom end of the middle die plate (2) and abutting against the middle die plate (2); An anti-skid component (5) is arranged on the lower die base (4), and the anti-skid component (5) cooperates with the lower metal frame to prevent the lower metal frame from sliding and deviating.

2. A laminated stopper repair molding tool according to claim 1, characterized in that: Positioning holes (6) are arranged at the four corners of the upper die base (1), the middle die plate (2) and the lower die base (4). The three positioning holes (6) at each corner form a group. The three positioning holes (6) in each group are coaxially arranged. A positioning pin (7) is arranged in each group of positioning holes (6) to realize positioning of the upper die base (1), the middle die plate (2) and the lower die base (4) through the positioning pin (7).

3. A laminated stopper repair molding tool according to claim 1, characterized in that: The upper die base (1) comprises: An upper mold plate (11), the upper mold plate (11) contacts the external punch and is used to compact the laminated stopper when the mold is closed; Two outer top blocks (12), the two outer top blocks (12) are arranged at the bottom end of the upper template (11) and are parallel to the two sides of the auxiliary frame (3), and the lower ends of the outer top blocks (12) are in contact with the upper end of the middle template (2); An inner top block (13), the inner top block (13) is arranged at the bottom end of the upper template (11) and is located between the two outer top blocks (12), and the bottom end of the inner top block (13) is in contact with the upper metal frame.

4. A laminated stopper repair molding tool according to claim 1, characterized in that: The lower die base (4) comprises: A lower mold plate (41), wherein the lower mold plate (41) is a plate-like structure with a flat bottom end, and the lower mold plate (41) is used to bear the weight of the entire mold; Two outer limiting blocks (42), the two outer limiting blocks (42) are symmetrically arranged at the top of the lower template (41), and the two outer limiting blocks (42) are respectively located on both sides of the lower metal frame; An inner limiting block (43), wherein the inner limiting block (43) is arranged between the two outer limiting blocks (42) at the top end of the lower template (41), the lower metal frame is located between the two outer limiting blocks (42), and the top end of the inner limiting block (43) is in contact with the lower metal frame.

5. A laminated stopper repair molding tool according to claim 4, characterized in that: The anti-slip assembly (5) comprises: A plug hole (51), the plug hole (51) is arranged through the two outer limiting blocks (42) and the inner limiting block (43), and the plug hole (51) is coaxially arranged with a through hole in the lower metal frame; A fixing member (52), wherein the fixing member (52) is inserted into the insertion hole (51), and the fixing member (52) matches the insertion hole (51).

6. A laminated stopper repair molding tool according to claim 5, characterized in that: The fixing member (52) is a cylindrical plug pin that matches the insertion hole (51).

7. A laminated stopper repair molding tool according to claim 1, characterized in that: The lower end of the middle template (2) is also provided with a positioning groove (22), and the positioning groove (22) matches the lower metal frame.

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