Universal shaft withdrawing tool for parts

Abstract

This utility model discloses a universal tooling for removing steel shafts, relating to the technical field of parts punching equipment. It includes a base, a tooling seat on top of the base, and an upper seat on top of the tooling seat, the top of which is connected to a hydraulic press. Multiple product seats with columnar upper ends are fixed to the front and rear of the top of the tooling seat. Each product seat has a storage hole for placing parts. A tool mounting plate is installed at the bottom of the upper seat, and multiple sets of tools are mounted on the bottom of the tool mounting plate corresponding to the product seats. Each set of tools includes two cutting edges, with the two cutting edges of each set positioned on either side directly above the product seat. Upper limit platforms are fixed at both ends of the bottom of the upper seat, and lower limit platforms are fixed at both ends of the top of the tooling seat directly below the upper limit platforms. The distance between the top of the upper limit platform and the top of the lower limit platform is less than the distance between the bottom of the cutting edges and the top of the product seat. Through this positioning punching structure design, damage to the steel shaft can be avoided during removal, allowing the steel shaft to be reused in die-casting production.

Description

Technical Field

[0001] This utility model relates to the technical field of punching equipment for parts, and specifically to a general-purpose tooling for removing shafts from parts. Background Technology

[0002] In the die casting process, in order to enhance the structural strength and assembly performance of the parts, it is often necessary to embed steel shafts inside the parts. These steel shafts are tightly bonded to the die-cast metal to form an integrated structure.

[0003] However, when die-casting defects or quality problems occur in parts, the parts need to be scrapped. In the past, the internal steel shaft was also scrapped after use, resulting in extremely high scrapping costs. If the internal steel shaft needs to be removed, traditionally, manual hammering or grinding wheel cutting is used. This is not only extremely inefficient, but manual operation also makes it difficult to ensure consistency in force and angle, easily damaging the steel shaft and rendering it unusable, thus requiring scrapping. Utility Model Content

[0004] To address the aforementioned issues, this utility model proposes a universal part retraction fixture, comprising a base, a fixture seat on top of the base, and an upper seat on top of the fixture seat, the top of which is connected to a hydraulic press; multiple product seats with columnar upper ends are fixed to the front and rear of the top of the fixture seat, each product seat having a storage hole for placing parts; a tool mounting plate is installed at the bottom of the upper seat, and multiple sets of tools are mounted on the bottom of the tool mounting plate corresponding to the product seats, each set of tools including two cutting edges, with the two cutting edges of a single set of tools positioned on both sides directly above the product seats; upper limit platforms are fixed at both ends of the bottom of the upper seat, and lower limit platforms are fixed at both ends of the top of the fixture seat directly below the upper limit platforms, the distance between the top of the upper limit platform and the top of the lower limit platform being less than the distance between the bottom of the cutting edges and the top of the product seats.

[0005] Furthermore, the tooling base has clearance holes below each product seat, and the clearance holes are connected to the storage holes. The base and the tooling base are fixed together by multiple connecting plates, which are located to the side of the clearance holes.

[0006] Furthermore, an upper positioning platform is installed at the bottom of the upper seat, and four positioning holes are longitudinally opened at the four corners of the upper seat and the upper positioning platform. A lower positioning platform is fixed on the top of the tooling seat, and a positioning rod that is slidably connected to the positioning hole is fixed on the top of the lower positioning platform.

[0007] Furthermore, there are three product seats on the front side of the tooling seat and two on the rear side of the tooling seat, and three sets of cutting tools on the front side of the cutting tool mounting plate and two sets on the rear side of the cutting tool mounting plate.

[0008] Furthermore, each product holder is equipped with a corresponding product code to prevent incorrect installation.

[0009] Furthermore, the cutting edge uses high-speed stainless steel blades, and the product base uses cold-work steel.

[0010] The beneficial effects of this utility model are as follows: 1. Through the positioning punching structure design, damage to the steel shaft can be avoided during the removal process, allowing the steel shaft to be reused in die casting production. This changes the situation where steel shafts can only be scrapped in the traditional processing method, reduces the production cost of enterprises, and realizes the recycling of resources.

[0011] 2. The multi-station design allows for simultaneous part placement and punching operations with three product seats on the front and two on the rear. Combined with the automated drive of the hydraulic press, this improves work efficiency. Meanwhile, the cutting tools are made of high-quality stainless steel blades, which have a service life three times longer than ordinary cold work steel blades, reducing the frequency of tool replacements. The product seats are made of ordinary cold work steel, which is low-cost and easy to procure.

[0012] 3. A dual positioning structure is set up. On the one hand, the part is initially positioned by the placement hole on the product seat that matches the shape of the part. On the other hand, the positioning rod between the upper seat and the tooling seat cooperates with the positioning hole to guide the part and effectively avoid the punching position deviation caused by the part placement offset. At the same time, the cooperation design of the upper limit stage and the lower limit stage controls the downward pressure distance of the upper seat and prevents the blade from being excessively pressed down, which would damage the part and the tool. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a front view structural diagram of the present utility model; Figure 3 This is a schematic diagram of the internal structure of the present invention; Figure 4 This is a side view of the structure of this utility model.

[0014] The reference numerals in the attached drawings are explained as follows: 1. Upper seat; 101. Positioning hole; 2. Tool mounting plate; 3. Cutting edge; 4. Positioning rod; 5. Upper positioning platform; 6. Lower positioning platform; 7. Product seat; 701. Storage hole; 8. Base; 9. Upper limit platform; 10. Lower limit platform; 11. Tooling seat; 1101. Clearance hole; 12. Connecting plate. Detailed Implementation

[0015] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0017] The present invention will be further described below with reference to the accompanying drawings: Universal tooling for removing shafts from parts, such as Figures 1-4 As shown, the device includes a base 8, a tooling seat 11 on top of the base 8, and an upper seat 1 on top of the tooling seat 11. The top of the upper seat 1 is connected to the hydraulic press. Multiple product seats 7 with columnar upper ends are fixed to the front and back of the top of the tooling seat 11. The product seats 7 have storage holes 701 for placing parts. A tool mounting plate 2 is installed at the bottom of the upper seat 1. Multiple sets of tools are installed at the bottom of the tool mounting plate 2 corresponding to the product seats 7. Each set of tools includes two cutting edges 3. The two cutting edges 3 of a single set of tools are located on both sides directly above the product seats 7. The tooling seat 11 has clearance holes 1101 below each product seat 7. The clearance holes 1101 are connected to the storage holes 701. The base 8 and the tooling seat 11 are fixed together by multiple connecting plates 12. The connecting plates 12 are located to the side of the clearance holes 1101.

[0018] The fixture 11 supports the product seat 7 and has a clearance hole 1101. It is also fixed to the base 8 through the connecting plate 12 to enhance the overall structural strength of the fixture. The upper seat 1 is connected to the hydraulic press and a tool mounting plate 2 is installed to realize the transmission of driving force. The product seat 7 positions the parts through the placement hole 701 to prevent the parts from shifting during the punching process. Under the drive of the hydraulic press, the tool punches the joint between the parts and the steel shaft to separate the steel shaft. The clearance hole 1101 guides the separated steel shaft to slide down for easy collection. The connecting plate 12 reinforces the connection between the base 8 and the fixture 11 and avoids blocking the clearance hole 1101, which would affect the exit of the steel shaft.

[0019] like Figure 1 and Figure 2 As shown, in this embodiment, upper limit platforms 9 are fixed at both ends of the bottom of the upper seat 1, and lower limit platforms 10 are fixed at both ends of the top of the tooling seat 11 directly below the upper limit platforms 9. The distance between the top of the upper limit platform 9 and the top of the lower limit platform 10 is less than the distance between the bottom of the blade 3 and the top of the product seat 7. An upper positioning platform 5 is installed at the bottom of the upper seat 1. Four positioning holes 101 are longitudinally opened at the four corners of the upper seat 1 and the upper positioning platform 5. A lower positioning platform 6 is fixed at the top of the tooling seat 11, and a positioning rod 4 is slidably connected to the positioning hole 101 at the top of the lower positioning platform 6.

[0020] Among them, the upper limit stage 9 and the lower limit stage 10 limit the maximum downward pressure distance of the upper seat 1 to prevent the cutting edge 3 from colliding with the product seat 7 due to excessive downward pressure, thus protecting the cutting tool and the product seat 7 from damage; the positioning rod 4 and the positioning hole 101 provide guidance for the up and down movement of the upper seat 1 to prevent the upper seat 1 from shifting laterally during the movement, ensuring that the cutting tool is always aligned with the punching position of the part.

[0021] like Figure 1 As shown, in this embodiment, three product holders 7 are arranged on the front side of the tooling holder 11, and two are arranged on the rear side of the tooling holder 11. Three sets of cutters are arranged on the front side of the cutter mounting plate 2, and two sets are arranged on the rear side of the cutter mounting plate 2. Each product holder 7 is marked with a corresponding product code to prevent incorrect placement. The distribution of multiple workstations increases the part processing capacity of a single operation. The three workstations on the front side and the two workstations on the rear side can operate simultaneously to meet the batch processing needs of the production line. The code markings provide clear placement guidance for operators, ensuring that different types of parts are accurately placed on the corresponding product holders 7, preventing punching failures due to incorrect part placement.

[0022] In this embodiment, the cutting edge 3 is made of high-quality stainless steel, and the product seat 7 is made of cold-work steel. The use of high-quality stainless steel for the cutting edge 3 improves its service life compared to ordinary cold-work steel; the use of ordinary cold-work steel for the product seat 7 results in lower cost and easier procurement.

[0023] The working principle of this utility model is as follows: First, install the upper seat 1 of this shaft retraction tool on the hydraulic press. The operator identifies the corresponding part according to the code on the part and accurately places the corresponding part on the product seat 7 with the same code, ensuring the alignment of the part and the product seat 7. Multiple different parts can be placed on different product seats 7 at the same time.

[0024] Start the hydraulic press, which drives the upper seat 1 to slowly press down. During the pressing process, the positioning rod 4 at the bottom of the upper seat 1 is inserted into the corresponding positioning hole 101. The cooperation between the positioning hole 101 and the positioning rod 4 ensures the precise alignment between the tool of the upper seat 1 and the tooling seat 11, effectively ensuring the accuracy and stability of each punching.

[0025] As the upper seat 1 is pressed down further, the two cutting edges 3 of the tool cut into the part under the action of the hydraulic press, punching the external components on both sides of the internal steel shaft. The upper limit platform 9 at the bottom of the upper seat 1 gradually approaches the lower limit platform 10 at the top of the fixture 11. When the two contact, the upper seat 1 stops pressing down. At this time, the cutting edges 3 have completed punching the external components on the side of the steel shaft of the part. At the same time, the clearance hole 1101 under the fixture 11 provides sufficient space for the punched steel shaft to slide out. After the tool completes the punching action, the steel shaft slides out smoothly from the clearance hole 1101 under the action of gravity, and the operator can easily remove the part.

[0026] After punching is completed, the hydraulic press drives the upper seat 1 to reset its stroke. Under the action of the hydraulic press, the upper seat 1 slowly rises back to its initial position. The operator removes the punched parts from the product seat 7 and places new parts to be removed from the shaft, preparing for the next round of shaft removal operation.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A universal part retraction tooling, comprising a base (8), wherein a tooling seat (11) is provided above the base (8), characterized in that: A top seat (1) is provided above the tooling seat (11), and the top of the top seat (1) is connected to the hydraulic press; multiple product seats (7) with columnar upper ends are fixed at the front and back of the top of the tooling seat (11), and the product seats (7) are provided with storage holes (701) for placing parts. A tool mounting plate (2) is installed at the bottom of the top seat (1), and multiple sets of tools are installed at the bottom of the tool mounting plate (2) corresponding to the product seats (7). Each set of tools includes two cutting edges (3), and the two cutting edges (3) of a single set of tools are located on both sides directly above the product seats (7); upper limit platforms (9) are fixed at both ends of the bottom of the top seat (1), and lower limit platforms (10) are fixed at both ends of the top of the tooling seat (11) directly below the upper limit platforms (9). The distance between the top of the upper limit platform (9) and the top of the lower limit platform (10) is less than the distance between the bottom of the cutting edge (3) and the top of the product seat (7).

2. The universal shaft retraction tooling for parts according to claim 1, characterized in that: The tooling base (11) has a clearance hole (1101) below each product base (7). The clearance hole (1101) is connected to the storage hole (701). The base (8) and the tooling base (11) are fixed together by multiple connecting plates (12). The connecting plates (12) are located to the side of the clearance hole (1101).

3. The universal part retraction tooling according to claim 1, characterized in that: The upper seat (1) is equipped with an upper positioning platform (5) at the bottom. The upper seat (1) and the upper positioning platform (5) have four positioning holes (101) that are longitudinally opened at the four corners. The tooling seat (11) is fixed with a lower positioning platform (6) at the top. The lower positioning platform (6) is fixed with a positioning rod (4) that is slidably connected to the positioning hole (101).

4. The universal shaft retraction tooling for parts according to claim 1, characterized in that: The product holder (7) has three on the front side of the tooling holder (11) and two on the rear side of the tooling holder (11). The cutting tool has three sets on the front side of the cutting tool mounting plate (2) and two sets on the rear side of the cutting tool mounting plate (2).

5. The universal part retraction tooling according to claim 4, characterized in that: Each product holder (7) has a corresponding product code to prevent incorrect installation.

6. The universal shaft retraction tooling for parts according to claim 1, characterized in that: The blade (3) is made of stainless steel, and the product seat (7) is made of cold work steel.

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