Machining die for support

Abstract

The utility model discloses a machining die for a support, and belongs to the field of aviation industry manufacturing. Comprising an upper die set and a lower die set arranged below the upper die set. The upper die set comprises a protruding block. The lower die set comprises a lower die body, a positioning block, a positioning pin, an ejector and a lower die cavity. The lower die cavity is formed in the center of the lower die body, the lower die cavity is matched with the bent machined part in shape, and the protruding block is right opposite to the lower die cavity and is pressed downwards to the lower die cavity to bend the machined part; the positioning block is arranged at the top of the lower die body, the ejector is arranged in the lower die cavity, the positioning pin is arranged on the ejector, and the positioning pin and a positioning hole in a machined part are positioned in a matched mode. According to the machining die, the support can be bent for multiple times at a time under the condition that allowance does not need to be removed, machining forming is conducted at a time on the premise that the position degree of each through hole is guaranteed, the problem of position deviation of the through holes is solved, the production cycle can be shortened to the maximum extent, and the product percent of pass is improved.

Description

Technical Field

[0001] The utility model belongs to the field of aviation industry manufacturing and relates to a processing die for a bracket. Background Art

[0002] With the rapid development of the aviation industry and the urgency of delivery tasks, especially for aircraft engines, pipeline bracket parts have higher requirements in terms of delivery quality and production cycle. Since the bracket parts are made of special materials and there are many through holes with strict position tolerances in the parts, if conventional forming methods are used, several bends are required to complete the product forming. However, this will cause the position of the through holes to have different degrees of deviation, resulting in a lower product qualification rate.

[0003] For example, the bracket structure of the part to be processed needs to have three bends. Since the left and right bends have low bending heights, the excess needs to be removed after bending. The three bends need to be performed step by step. After multiple bends, the positions of the through holes will have different degrees of deviations, which reduces the product qualification rate. Utility Model Content

[0004] In order to overcome the shortcomings of the above-mentioned prior art, the purpose of the utility model is to provide a processing mold for a bracket, which can be processed and formed in one time while ensuring the position accuracy of each through hole, thereby solving the problem of hole position deviation and shortening the production cycle to the maximum extent and improving the product qualification rate.

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

[0006] The utility model provides a processing mold for a bracket, comprising an upper mold group and a lower mold group arranged below the upper mold group;

[0007] The upper mold assembly includes a protrusion;

[0008] The lower mold assembly includes a lower mold body, a positioning block, a positioning pin, a pusher and a lower mold cavity;

[0009] The lower die cavity is opened at the center of the lower die body, the lower die cavity matches the shape of the processed part after bending, the convex block is arranged opposite to the lower die cavity, and the convex block is pressed down to the lower die cavity to bend the processed part;

[0010] The positioning block is arranged on the top of the lower mold body, the ejector is arranged inside the lower mold cavity, the positioning pin is arranged on the ejector, and the positioning pin cooperates with the positioning hole on the processed part for positioning.

[0011] In a specific implementation process, the positioning block includes a first positioning block and a second positioning block.

[0012] The first positioning block and the second positioning block are respectively located on two sides of the lower mold cavity, and the distance between the opposite surfaces of the first positioning block and the second positioning block is equal to the distance between the left and right sides of the processed part.

[0013] In a specific implementation process, the lower mold cavity is T-shaped, and the lower mold cavity includes a first groove and a second groove that are connected to each other, and the ejector is located inside the second groove.

[0014] In a specific implementation process, the bending height of the first groove is higher than the bending height of the second groove.

[0015] In a specific implementation process, a plurality of openings are provided on the center line of the ejector.

[0016] In a specific implementation process, the positioning pins are evenly arranged on the openings.

[0017] In a specific implementation process, an ejection channel of the ejector is provided through the lower mold body below the ejector, and the ejection channel of the ejector is used to cooperate with the ejector to eject the processed parts.

[0018] In a specific implementation process, the upper mold assembly further includes an upper mold base, the upper mold base is disposed above the protrusion, and the upper mold base is fixedly connected to the protrusion.

[0019] In a specific implementation process, a positioning hole corresponding to the positioning pin is opened on the protrusion.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] The utility model provides a processing mold for a bracket. The bracket mold is divided into an upper and lower mold group. The lower mold group is responsible for the placement and positioning of the bracket and auxiliary bending, and the upper mold group is responsible for the fastening and active bending of the bracket. The convex block and the lower mold cavity cooperate to form a bend to obtain a bracket that is processed and formed in one time. The positioning block, the positioning pin, the confirmation hole and the positioning hole are set accordingly to further confirm the fixed position and avoid the position deviation of the through hole. The above-mentioned processing mold allows the bracket to be bent in multiple passes at one time without removing the excess, and the processing mold is processed and formed in one time under the premise of ensuring the position of each through hole, which not only solves the problem of through hole position deviation, but also shortens the production cycle to the maximum extent and improves the product qualification rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a cross-sectional view of a processing mold of the bracket of the utility model;

[0023] Figure 2 A top view of the lower die set and processed parts of the processing die of the bracket of the utility model;

[0024] Figure 3 A processing cross-sectional view of a processing mold for a bracket of the utility model;

[0025] Figure 4 It is a schematic diagram of ejection of processing parts of a processing mold of the bracket of the utility model.

[0026] Among them: 1-upper mold group; 2-positioning block; 2-1-first positioning block; 2-2-second positioning block; 3-positioning pin; 3-1-first positioning pin; 3-2-second positioning pin; 4-ejector; 5-lower mold cavity; 6-bump; 7-processed part; 8-ejector ejection channel; 9-lower mold body. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art 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 embodiment 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 should fall within the scope of protection of the utility model.

[0028] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0029] The utility model is further described in detail below with reference to the accompanying drawings:

[0030] See also Figure 1 The utility model provides a processing mold for a bracket, including an upper and lower mold group. The lower mold group is responsible for the placement, positioning and auxiliary bending of the bracket, and the upper mold group 1 is responsible for the fastening and active bending of the bracket. The upper mold group 1 includes a protrusion 6 and an upper mold base, and the lower mold group includes a lower mold body 9, a positioning block 2, a positioning pin 3, a ejector 4 and a lower mold cavity 5.

[0031] Specifically, the upper mold base of the upper mold set 1 is arranged above the protrusion 6, and the upper mold base is fixedly connected to the protrusion 6, preferably by bolt connection. The protrusion 6 is also provided with a positioning hole corresponding to the positioning pin 3. The lower mold cavity 5 in the lower mold set is arranged directly below the protrusion 6. The protrusion 6 of the upper mold set 1 is pressed down, and the lower mold cavity 5 cooperates with the protrusion 6 to bend the part, so that the part is formed by multiple bends at one time.

[0032] Specifically, the lower die cavity 5 is opened at the center of the lower die body 9, and the lower die cavity 5 matches the shape of the processed part 7 after bending. Preferably, it includes a first groove and a second groove that are connected, so that the bending height of the first groove can be higher than the bending height of the second groove. The convex block 6 is arranged opposite to the lower die cavity 5, and the convex block 6 presses the processed part 7 placed on the lower die body 9 to bend the processed part 7 into the groove in the lower die cavity 5; the ejector 4 is arranged inside the lower die cavity 5, and more specifically, the ejector 4 is located inside the second groove.

[0033] Specifically, a plurality of openings are provided on the center line of the ejector 4, and the positioning pins 3 are provided on the ejector 4, the number of the positioning pins 3 is greater than or equal to 1, and they are evenly distributed on the ejector 4. More accurately, the positioning pins are evenly provided on the openings, and the number of the openings is greater than the number of the positioning pins 3. The positioning pins 3 cooperate with the positioning holes on the processed part 7 for positioning and cooperate with the positioning holes on the protrusion 6 for further positioning.

[0034] Specifically, the positioning block 2 is arranged at the top of the lower mold body 9, and the positioning block 2 includes a first positioning block 2-1 and a second positioning block 2-2. The first positioning block 2-1 and the second positioning block 2-2 are respectively located on both sides of the lower mold cavity 5, and the distance between the opposite surfaces of the first positioning block 2-1 and the second positioning block 2-2 is equal to the distance between the left and right sides of the processing part 7. To be more specific, the first positioning block 2-1 and the second positioning block 2-2 are respectively located on both sides of the processing part 7 mounted above the lower mold cavity 5, and are fixedly connected to the lower mold body 9 by bolts.

[0035] Specifically, an ejection channel 8 is provided through the lower mold body 9 below the ejector 4, and the ejection channel 8 can cooperate with the ejector 4 to eject the processed part 7. The number of the ejection channels 8 of the ejector is greater than or equal to 1. When the number of the ejection channels 8 of the ejector is 1, it is opened in the center position below the ejector 4. When the number of the ejection channels 8 of the ejector is greater than 1, they are evenly opened below the ejector 4.

[0036] The method of using the above processing mold is as follows:

[0037] S1: Figure 2As shown, the front bracket of the bending is placed above the ejector 4 and the lower mold cavity 5, and the ejector 4 is ejected and matched through the ejector ejection channel 8 by a tool, so that the ejector 4 is flush with the upper end of the lower mold cavity 5, and the positioning pin 3 on the ejector 4 can pass through the positioning hole on the bracket, and the positioning block 2 is adjusted to fix the part;

[0038] S2: Figure 3 As shown, the upper mold assembly 1 is pressed downward, and the lower mold cavity 5 cooperates with the convex block 6 of the upper mold assembly 1 to bend the processed part 7, so that the processed part 7 is formed by multiple bends at one time;

[0039] S3: Figure 4 As shown, a tool is used to eject the processed molded product through the ejection channel 8 and the ejector 4;

[0040] S4: Place the product formed by tooling A on the lower die of tooling B and position it based on the positioning pin 3.

[0041] Example

[0042] The present embodiment provides a processing mold for a bracket, including an upper mold set 1 and a lower mold set, the upper mold set 1 includes a convex block 6 connected by a fixing bolt and an upper mold base, the convex block 6 is arranged below the upper mold base, and the lower mold set includes a lower mold body 9, a first positioning block 2-1 and a second positioning block 2-2, a first positioning pin 3-1 and a second positioning pin 3-2, an ejector 4 and a lower mold cavity 5, and an ejector ejection channel 8. The lower mold cavity 5 includes a first groove and a second groove that are connected.

[0043] The upper mold set 1 is arranged above the lower mold set, and the protrusion 6 faces the lower mold cavity 5. The protrusion 6 of the upper mold set 1 is pressed down, and the lower mold cavity 5 cooperates with the protrusion 6 to bend the part, so that the part is formed by three bends at one time. The ejector 4 is located inside the second groove. Three openings are opened on the center line of the ejector 4, and two positioning pins 3 are respectively set in the openings opened at both ends of the ejector 4. The number of positioning holes on the protrusion 6 is 2, and they face the two positioning pins 3.

[0044] The first positioning block 2-1 and the second positioning block 2-2 are respectively located on both sides of the processing part 7 mounted above the lower mold cavity 5, and are fixedly connected to the lower mold body 9 with bolts. The lower mold body 9 below the ejector 4 is penetrated by two ejector ejection channels 8 distributed at both ends of the ejector 4.

[0045] The processing mold of a bracket provided in this embodiment allows the bracket to be bent in multiple steps at one time without removing the excess, and the processing mold can be processed and formed in one time while ensuring the position accuracy of each through hole, which not only solves the problem of through hole position deviation, but also shortens the production cycle to the maximum extent and improves the product qualification rate.

[0046] The above content is only for explaining the technical idea of ​​the utility model and cannot be used to limit the protection scope of the utility model. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the utility model shall fall within the protection scope of the claims of the utility model.

Claims

1. A processing mold for a bracket, characterized in that: It comprises an upper mold group (1) and a lower mold group arranged below the upper mold group (1); The upper mold assembly (1) comprises a protrusion (6); The lower mold assembly comprises a lower mold body (9), a positioning block (2), a positioning pin (3), a pusher (4) and a lower mold cavity (5); The lower die cavity (5) is opened at the center of the lower die body (9), the lower die cavity (5) matches the shape of the processed part (7) after bending, the convex block (6) is arranged opposite to the lower die cavity (5), and the convex block (6) is pressed down to the lower die cavity (5) to bend the processed part (7); The positioning block (2) is arranged on the top of the lower mold body (9), the ejector (4) is arranged inside the lower mold cavity (5), the positioning pin (3) is arranged on the ejector (4), and the positioning pin (3) cooperates with the positioning hole on the processed part (7) for positioning.

2. The processing mold of the bracket according to claim 1, characterized in that: The positioning block (2) comprises a first positioning block (2-1) and a second positioning block (2-2), The first positioning block (2-1) and the second positioning block (2-2) are respectively located on two sides of the lower mold cavity (5), and the distance between the opposite surfaces of the first positioning block (2-1) and the second positioning block (2-2) is equal to the distance between the left and right sides of the processed part (7).

3. The processing mold of the bracket according to claim 1, characterized in that: The lower mold cavity (5) is in a T-shape, and comprises a first groove and a second groove which are in communication with each other, and the ejector (4) is located inside the second groove.

4. The processing mold for the bracket according to claim 3, characterized in that: The bending height of the first groove is higher than the bending height of the second groove.

5. The processing mold for the bracket according to claim 1, characterized in that: A plurality of openings are provided on the center line of the ejector (4).

6. The processing mold for the bracket according to claim 5, characterized in that: The positioning pins are evenly arranged on the openings.

7. The processing mold for the bracket according to claim 1, characterized in that: An ejector ejection channel (8) is provided through the lower mold body (9) below the ejector (4), and the ejector ejection channel (8) is used to cooperate with the ejector (4) to eject the processed part (7).

8. The processing mold for the bracket according to claim 1, characterized in that: The upper mold assembly (1) also includes an upper mold base, which is arranged above the convex block (6) and is fixedly connected to the convex block (6).

9. The processing mold for the bracket according to claim 1 or 8, characterized in that: The protrusion (6) is provided with a positioning hole corresponding to the positioning pin (3).

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