Forged aluminum alloy air spring press-fitting process

Abstract

The invention relates to the field of forged aluminum alloy processing, in particular to a forged aluminum alloy air spring press-fitting process, which comprises the following steps: firstly, manually putting fasteners into corresponding hole sites of each forged aluminum alloy product to be press-fitted, then sequentially putting the forged aluminum alloy products to be press-fitted with the fasteners in the hole sites on a press-fitting tool of an index plate workbench, and pressing the forged aluminum alloy products to be press-fitted with the fasteners in the hole sites. And the press-fitting equipment is started until all the press-fitting tools are fully filled, and the press-fitting equipment rotates along with the index plate workbench until all the forged aluminum alloy products to be press-fitted are subjected to press-fitting operation. According to the forged aluminum alloy air spring press-fitting process, the press-fitting operation requirements of a plurality of hole sites in a plurality of forged aluminum alloy products to be press-fitted can be met, multi-hole press-fitting operation of fasteners in the hole sites can be completed at the same time under the action of the press-fitting tool, the automation level is high, the operation efficiency is improved, and the labor intensity of workers is lowered. And the stability of the product quality of the forged aluminum alloy product to be pressed in the pressing process is ensured.

Description

Technical Field

[0001] The present invention relates to the field of forged aluminum alloy processing, and specifically to a press-fitting process for a forged aluminum alloy air spring. Background Art

[0002] Currently, multiple hole positions are processed on forged aluminum alloy products according to actual application requirements. It is necessary to complete the fastening and press-fitting operations with fasteners first. However, since there is no designed supporting press-fitting tooling in the workshop, it is necessary to press-fit each product individually. After the press-fitting of a single product is completed, the press-fitting of the next forged aluminum alloy product to be press-fitted is continued. This makes the overall press-fitting operation inefficient and the automation level low.

[0003] Based on this, the present application proposes a press-fitting process for a forged aluminum alloy air spring. Summary of the Invention

[0004] The present invention provides a press-fitting process for a forged aluminum alloy air spring, which can meet the press-fitting operation requirements of multiple hole positions on multiple forged aluminum alloy products to be press-fitted. Moreover, the fasteners in multiple hole positions can simultaneously complete the press-fitting operations of multiple holes under the action of the press-fitting tooling, with a high automation level, improved operation efficiency, and ensured stability of the product quality of the forged aluminum alloy products to be press-fitted during the press-fitting process.

[0005] To solve the above technical problems, the present invention provides a press-fitting process for a forged aluminum alloy air spring. The press-fitting process includes the following steps:

[0006] S1. Prepare several forged aluminum alloy products to be press-fitted and the corresponding number of fasteners;

[0007] S2. Manually place the fasteners into the hole positions corresponding to each forged aluminum alloy product to be press-fitted;

[0008] S3. Place the forged aluminum alloy products to be press-fitted with fasteners in the hole positions on the press-fitting tooling of the indexing table workbench in sequence until all the press-fitting tooling is full;

[0009] S4. Start the press-fitting equipment. The indexing table workbench automatically rotates and drives the forged aluminum alloy products to be press-fitted on the press-fitting tooling to rotate to the corresponding press-fitting station below the press-fitting equipment. Then, the press-fitting equipment starts to perform the press-fitting operations on each forged aluminum alloy product to be press-fitted in sequence. As the indexing table workbench rotates, until all the forged aluminum alloy products to be press-fitted complete the press-fitting operations;

[0010] S5. After the press-fitting operation is completed, the press-fitting equipment automatically returns, and the press-fitting process ends.

[0011] Preferably, in the pressing operation of S4, the indexing table rotates automatically and drives the pressed product that has completed the pressing operation to rotate to the next station. The pressed product that has completed the pressing operation is taken out by the picking gripper and placed on the discharging conveyor for the next round of operation.

[0012] Preferably, in the pressing operation of S4, by detecting whether the pressure of the pressing equipment reaches the set pressure value, if the set pressure is not reached, the pressing equipment will automatically alarm and stop the operation.

[0013] Preferably, in S1, the fastener is a screw. A clearance fit section and a guiding section are sequentially connected from top to bottom on the rod body of each screw, and the outer diameter of the guiding section is smaller than the outer diameter of the clearance fit section.

[0014] Preferably, in S3, several pressing toolings are equidistantly distributed in a circular shape on the indexing table. Each pressing tooling includes a fixing part, a placing part, and several spring compression components. The fixing part is fixedly arranged on the indexing table, the placing part is fixedly arranged above the fixing part, a placing groove for placing the forging aluminum alloy product to be pressed is opened on the upper surface of the placing part, a transition hole and a mounting hole corresponding to the hole positions of the forging aluminum alloy product to be pressed are respectively opened in the placing groove and the fixing part, the inner diameter of the transition hole is smaller than the inner diameter of the mounting hole, and the inner diameter of the transition hole is larger than the lower outer diameter of the fastener;

[0015] The spring compression component includes a buffer and a spring. The spring is installed in the mounting hole and its bottom is fixed to the indexing table. The top of the spring is sleeved outside the bottom of the buffer, and the top of the buffer extends into the transition hole.

[0016] Preferably, the buffer includes a connecting section, a limiting section, and a guiding section sequentially arranged from top to bottom. The connecting section extends into the transition hole, the limiting section is located below the transition hole and its outer diameter is larger than the inner diameter of the transition hole, and the top of the spring is sleeved outside the guiding section.

[0017] The beneficial effects of the present invention are:

[0018] 1. The forging aluminum alloy air spring pressing process of the present invention can meet the pressing operation requirements of multiple hole positions on multiple forging aluminum alloy products to be pressed. And the fasteners in multiple hole positions can simultaneously complete the pressing operation of multiple holes under the action of the pressing tooling, with a high degree of automation, improving the operation efficiency and ensuring the stability of the product quality of the forging aluminum alloy product to be pressed during the pressing process;

[0019] 2. Through the cooperative design of the indexing table workbench, the press-fitting tooling, the press-fitting equipment and the material-taking gripper, the present invention can realize the automation of the press-fitting operation, reduce the manual operation cost, ensure the press-fitting accuracy, and automatically complete the press-fitting operation of multiple forged aluminum alloy products to be press-fitted. Among them, the design of the press-fitting tooling can provide a placement groove with a limiting function for the forged aluminum alloy products to be press-fitted, reduce the offset in the horizontal direction, and can also meet the press-fitting requirements of multiple hole positions on the forged aluminum alloy products to be press-fitted. Moreover, under the action of the spring compression assembly, it can slow down the impact force of the fastener during the press-fitting process, and can also provide an upward ejection force for the taking of the forged aluminum alloy products to be press-fitted after the press-fitting operation, facilitating the separation of the forged aluminum alloy products to be press-fitted from the press-fitting tooling;

[0020] 3. The present invention selects a screw with a clearance fit section and a guiding section on the rod body as the fastener. The clearance fit section can ensure the perpendicularity of the press-fitting, and the guiding section can play a certain guiding role, facilitating the press-fitting of the screw, improving the accuracy in the press-fitting operation, and ensuring the stability of the product quality of the forged aluminum alloy products to be press-fitted during the press-fitting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a schematic structural diagram of the press-fitting process of the forged aluminum alloy air spring according to Embodiment 1 of the present invention;

[0023] Figure 2 is Figure 1 the schematic diagram of A-A in

[0024] Figure 3 is Figure 2 the schematic diagram of part B in

[0025] In the figure, 1-indexing table workbench, 2-press-fitting tooling, 3-press-fitting equipment, 4-screw, 21-fixing part, 22-placement part, 23-spring compression assembly, 41-clearance fit section, 42-guiding section,

[0026] 100-forged aluminum alloy product to be press-fitted, 221-transition hole, 211-mounting hole, 231-buffer, 232-spring, 2311-limiting section. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0028] Embodiment 1

[0029] As Figures 1 - 3 , a forging aluminum alloy air spring press-fitting process, the press-fitting process includes the following steps:

[0030] S1. Prepare several forging aluminum alloy products 100 to be press-fitted and the corresponding number of fasteners;

[0031] S2. Manually place the fasteners into the corresponding hole positions of each forging aluminum alloy product 100 to be press-fitted;

[0032] S3. Place the forging aluminum alloy products 100 to be press-fitted with fasteners in the hole positions on several press-fitting toolings 2 of the indexing table workbench 1 in sequence until all the press-fitting toolings 2 are full;

[0033] S4. Start the press-fitting device 3, the indexing table workbench 1 automatically rotates and drives the forging aluminum alloy products 100 to be press-fitted on the press-fitting toolings 2 to rotate to the corresponding press-fitting stations below the press-fitting device 3, and then the press-fitting device 3 starts to perform the press-fitting operations on each forging aluminum alloy product 100 in sequence. With the rotation of the indexing table workbench 1, until all the forging aluminum alloy products 100 to be press-fitted complete the press-fitting operations;

[0034] S5. After the press-fitting operation is completed, the press-fitting device 3 automatically returns, and the press-fitting process ends.

[0035] In this embodiment, during the press-fitting operation, the indexing table workbench 1 automatically rotates and drives the press-fitted products that have completed the press-fitting operation to rotate to the next station, and the press-fitted products that have completed the press-fitting operation are taken out by the picking gripper and placed on the discharging conveyor for the next round of operation; by detecting whether the pressure of the press-fitting device 3 reaches the set pressure value, if the set pressure is not reached, the press-fitting device 3 automatically alarms and stops the operation, and notifies the technician to handle it in time.

[0036] In this embodiment, the fastener is a screw 4, and a clearance fit section 41 and a guiding section 42 are sequentially connected from top to bottom on the rod body of each screw 4. The outer diameter of the guiding section 42 is smaller than the outer diameter of the clearance fit section 41; the clearance fit section can ensure the perpendicularity of the press-fitting, and the guiding section can play a certain guiding role, facilitating the press-fitting of the screw, improving the accuracy in the press-fitting operation, and ensuring the stability of the product quality of the forging aluminum alloy product to be press-fitted during the press-fitting process.

[0037] In this embodiment, a plurality of press-fitting toolings 2 are equidistantly distributed in a circular shape on the indexing table 1. Each press-fitting tooling 2 includes a fixing part 21, a placing part 22, and a plurality of spring compression assemblies 23. The fixing part 21 is fixedly arranged on the indexing table 1, the placing part 22 is fixedly arranged above the fixing part 21. A placing groove for placing the forging aluminum alloy product 100 to be press-fitted is formed on the upper surface of the placing part 22. A transition hole 221 and a mounting hole 211 corresponding to the hole positions of the forging aluminum alloy product 100 to be press-fitted are respectively formed in the placing groove and the fixing part 21. The inner diameter of the transition hole 221 is smaller than that of the mounting hole 211, and the inner diameter of the transition hole 221 is larger than the lower outer diameter of the fastener. Specifically, in this embodiment, the number of press-fitting toolings is set to 6, and there are 4 hole positions on the forging aluminum alloy product to be press-fitted. The positions of the 4 hole positions can be set according to actual processing requirements. Of course, in other embodiments, the number of press-fitting toolings and the hole positions can be set to others according to actual needs.

[0038] In this embodiment, the spring compression assembly 23 includes a buffer member 231 and a spring 232. The spring 232 is installed in the mounting hole 211 and its bottom is fixed to the indexing table 1. The top of the spring 232 is sleeved on the outer side of the bottom of the buffer member 231. The top of the buffer member 231 extends into the transition hole 221. Under the action of the spring compression assembly, it can slow down the impact force of the fastener during the press-fitting process, and can also provide an upward ejection force for taking the forging aluminum alloy product to be press-fitted after the press-fitting operation is completed, facilitating the separation of the forging aluminum alloy product to be press-fitted from the press-fitting tooling.

[0039] As Figure 3 shown, the buffer member 231 includes a connecting section, a limiting section 2311, and a guiding section arranged in sequence from top to bottom. The connecting section extends into the transition hole 221. The limiting section 2311 is located below the transition hole 221 and its outer diameter is larger than the inner diameter of the transition hole 221. The top of the spring 232 is sleeved on the outer side of the guiding section. The design of this limiting section can limit the upward movement stroke of the connecting section under the action of the spring, prevent the spring from excessive stretching, and improve the service life of the press-fitting tooling.

[0040] The above-disclosed are only the preferred embodiments of the present invention. Of course, the scope of the rights of the present invention cannot be limited thereby. Therefore, equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. A forging aluminum alloy air spring press-fitting process, characterized in that, The press-fitting process includes the following steps: S1. Prepare several forged aluminum alloy products (100) to be press-fitted and the corresponding number of fasteners; S2. Manually place the fasteners into the corresponding hole positions of each forged aluminum alloy product (100) to be press-fitted; S3. Place the forged aluminum alloy products (100) with fasteners in the hole positions on several press-fitting toolings (2) of the indexing table workbench (1) in sequence until all the press-fitting toolings (2) are full; S4. Start the press-fitting device (3). The indexing table workbench (1) automatically rotates and drives the forged aluminum alloy products (100) on the press-fitting toolings (2) to rotate to the corresponding press-fitting stations below the press-fitting device (3), and then the press-fitting device (3) starts to perform the press-fitting operations on each forged aluminum alloy product (100) in sequence. With the rotation of the indexing table workbench (1), until all the forged aluminum alloy products (100) to be press-fitted complete the press-fitting operations; S5. After the press-fitting operations are completed, the press-fitting device (3) automatically returns, and the press-fitting process ends.

2. The forging aluminum alloy air spring press-fitting process according to claim 1, characterized in that In the press-fitting operation of S4, the indexing table workbench (1) automatically rotates and drives the press-fitted products that have completed the press-fitting operations to rotate to the next station, and the press-fitted products that have completed the press-fitting operations are taken out by the picking gripper and placed on the discharging conveyor for the next round of operations.

3. A forging aluminum alloy air spring press-fitting process according to claim 1, characterized in that In the press-fitting operation of S4, by detecting whether the pressure of the press-fitting device (3) reaches the set pressure value. If the set pressure is not reached, the press-fitting device (3) automatically alarms and stops the operation.

4. A forging aluminum alloy air spring press-fitting process according to claim 1, characterized in that, In S1, the fastener is a screw (4). A clearance fit section (41) and a guiding section (42) are sequentially connected from top to bottom on the rod body of each screw (4), and the outer diameter of the guiding section (42) is smaller than the outer diameter of the clearance fit section (41).

5. A forging aluminum alloy air spring press-fitting process according to claim 1, characterized in that In S3, several press-fitting toolings (2) are equidistantly distributed in a circular shape on the indexing table workbench (1). Each press-fitting tooling (2) includes a fixing part (21), a placing part (22), and several spring compression components (23). The fixing part (21) is fixedly arranged on the indexing table workbench (1), the placing part (22) is fixedly arranged above the fixing part (21), a placing groove for placing the forged aluminum alloy product (100) to be press-fitted is formed on the upper surface of the placing part (22), a transition hole (221) corresponding to the hole position of the forged aluminum alloy product (100) and a mounting hole (211) are respectively formed in the placing groove and the fixing part (21), the inner diameter of the transition hole (221) is smaller than the inner diameter of the mounting hole (211), and the inner diameter of the transition hole (221) is larger than the lower end outer diameter of the fastener; The spring compression component (23) includes a buffer (231) and a spring (232). The spring (232) is installed in the mounting hole (211), the top of the spring (232) is sleeved on the outer side of the bottom of the buffer (231), and the top of the buffer (231) extends into the transition hole (221).

6. The forging aluminum alloy air spring pressing process according to claim 5, characterized in that The buffer member (231) includes a connecting section, a limiting section (2311), and a guiding section which are arranged in sequence from top to bottom. The connecting section extends into the transition hole (221). The limiting section (2311) is located below the transition hole (221) and its outer diameter is greater than the inner diameter of the transition hole (221). The top of the spring (232) is sleeved on the outside of the guiding section.

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