Punching type bearing outer ring blanking die

Abstract

The utility model relates to a stamping type bearing outer ring blanking die which comprises a lower die body, an upper die body capable of moving up and down is arranged over the lower die body, a forming die head is arranged in the lower die body, a stamping die head of a hollow structure is arranged on the upper die body corresponding to the lower portion of the forming die head, and the lower end of the stamping die head is provided with a horn mouth contracting inwards. The forming die head comprises an ejector rod arranged in the lower die and a forming sleeve arranged at the upper end of the ejector rod in a sliding mode, a guide plate is suspended below the upper die, a plurality of compression springs are connected between the guide plate and the upper die, the stamping die head is in sliding fit with the guide plate, the front side face of the guide plate is provided with a spray pipe blowing high-pressure gas towards the ejector rod, and a waste hole is formed in the lower die. According to the utility model, the bearing outer ring subjected to punch forming is blown into the material box through high-pressure gas connected into the spray pipe, and waste materials are discharged from the waste material hole, so that the whole steel plate can be directly subjected to punch forming without being cut into strips and then being punched, and therefore, steel materials can be saved, the working efficiency is improved, and the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of bearing manufacturing technology, and in particular to a stamping die for blanking the outer ring of a bearing. Background Technology

[0002] The outer rings of stamped bearings are mostly made using a stamping process. In the blanking process, the existing operation steps are as follows: first, a whole steel plate is cut into strips, and the width of each steel plate is slightly larger than the diameter of the outer ring of the bearing to be stamped. Then, the operator pushes the strip steel plate into the blanking stamping die. The upper and lower dies work together to stamp the strip steel plate into a bearing blank. Then, the formed outer ring blank is pushed into the material box. After the stamping of one steel plate is completed, the stamping of the next steel plate is carried out. The material box filled with outer ring blanks is transferred to the next forming die for the forming stamping of the bearing outer ring.

[0003] However, this stamping method, which involves cutting the entire steel plate into strips, results in excess steel plate becoming scrap because each strip needs to be slightly wider than the diameter of the outer ring of the bearing being stamped. This leads to material waste and increases the cost of bearing manufacturing. Furthermore, the bearing blanks after stamping are manually cut, which increases the workload of the operators and is not conducive to improving work efficiency. Utility Model Content

[0004] The technical problem to be solved by this utility model is: in order to overcome the shortcomings of the prior art, this utility model provides a stamping type bearing outer ring blanking die to reduce material waste and effectively improve operating efficiency.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a stamping bearing outer ring blanking die, including a lower die, an upper die that can move up and down is provided directly above the lower die, a forming die head is provided inside the lower die, and a hollow stamping die head is provided on the upper die below the forming die head. The lower end of the stamping die head has an inwardly contracting flared mouth. The forming die head includes a push rod provided in the lower die and a forming sleeve slidably provided on the upper end of the push rod. A guide plate is suspended below the upper die, and several compression springs are connected between the guide plate and the upper die. The stamping die head and the guide plate are slidably engaged. The front side of the guide plate is provided with a nozzle for blowing high-pressure gas towards the push rod. A waste hole is opened on the lower die located behind the push rod, and a cutter corresponding to the position of the waste hole is installed on the upper die. The cutter is slidably engaged with the guide plate.

[0006] Furthermore, an adapter plate is fixed to the upper end face of the upper die, and a base plate is fixed to the bottom face of the lower die. The adapter plate is fixed to the punch of the punch press, and the base plate is fixed to the worktable of the punch press.

[0007] Furthermore, the bottom of the top rod is fixed to the base plate, and the forming sleeve is connected to three circumferentially distributed connecting rods. The connecting rods pass through the lower mold and the base plate and are connected to a flange. The bottom surface of the flange is provided with a return spring to reset the forming sleeve upward.

[0008] Furthermore, each corner of the upper mold is provided with a tie rod for suspension, and the lower end of the tie rod is threadedly connected to the guide plate.

[0009] Furthermore, guide sleeves are respectively installed at both ends of the rear side of the adapter plate, and guide posts that slide in cooperation with the guide sleeves are fixed on the base plate.

[0010] The beneficial effects of this utility model are as follows: By connecting a nozzle to the guide plate, this utility model uses high-pressure gas to blow the stamped bearing outer ring into the material box, and the waste material is discharged from the waste material hole, thereby maintaining the continuity of the stamping operation and improving work efficiency. The whole steel plate can be directly stamped without cutting it into strips before stamping, thus saving steel and reducing production costs. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0012] Figure 1 This is a three-dimensional structural schematic diagram of the present invention.

[0013] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0014] Figure 3 This is a three-dimensional structural schematic diagram of the molding die head described in this utility model.

[0015] Figure 4 This is a three-dimensional structural schematic diagram of the stamping die head described in this utility model.

[0016] In the diagram: 1. Lower mold, 2. Upper mold, 3. Forming die head, 3-1. Ejector rod, 3-2. Forming sleeve, 3-3. Connecting rod, 3-4. Flange, 4. Stamping die head, 4-1. Trumpet mouth, 5. Guide plate, 6. Compression spring, 7. Nozzle, 8. Waste hole, 9. Cutter, 10. Adapter plate, 11. Base plate, 12. Return spring, 13. Tie rod, 14. Guide sleeve, 15. Guide post. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0018] like Figures 1-4The stamping die for blanking the outer ring of a bearing has a base plate 11, and an adapter plate 10 is provided directly above the base plate 11. The adapter plate 10 is fixed to the punch of the punch press, and the base plate 11 is fixed on the worktable of the punch press.

[0019] An upper mold 2 is fixed to the bottom surface of the adapter plate 10, and a lower mold 1 is fixed to the upper surface of the base plate 11. A forming die head 3 is provided inside the lower mold 1, and a hollow stamping die head 4 is provided on the upper mold 2 below the forming die head 3. The lower end of the stamping die head 4 has an inwardly contracting flared mouth 4-1.

[0020] The upper mold 2 is provided with a guide plate 5 below it. Stepped holes are opened at the four corners of the upper mold 2. A pull rod 13 is suspended in the stepped hole. The lower end of the pull rod 13 is threaded to the guide plate 5. Five compression springs 6 are connected between the guide plate 5 and the upper mold 2. The stamping die head 4 slides with the guide plate 5. After one stamping is completed, the compression springs 6 help the upper mold 2 to reset.

[0021] The forming die head 3 includes a push rod 3-1, a forming sleeve 3-2, a connecting rod 3-3, and a flange 3-4. The push rod 3-1 is located inside the lower die 1, and its bottom is fixed to the upper surface of the base plate 11. The forming sleeve 3-2 is slidably located on the upper end of the push rod 3-1. The flange 3-4 is located on the bottom surface of the base plate 11. Three connecting rods 3-3 are evenly distributed circumferentially between the forming sleeve 3-2 and the flange 3-4. The upper end of the connecting rod 3-3 is fixed to the bottom of the forming sleeve 3-2. After the connecting rod 3-3 passes through the lower die 1 and the base plate 11, its lower end is fixed to the flange 3-4. The bottom surface of the flange 3-4 is provided with a return spring 12 to reset the forming sleeve 3-2 upward.

[0022] The guide plate 5 has an inclined surface at the center of its front side, and a nozzle 7 for blowing high-pressure gas toward the upper end of the push rod 3-1 is connected to the center of the inclined surface; a rectangular waste hole 8 is opened on the left and right sides of the lower mold 1 located behind the push rod 3-1, the waste hole 8 penetrates the bottom plate 11, and a cutter 9 corresponding to the position of the waste hole 8 is fixed on the upper mold 2, the cutter 9 slidingly engaging with the guide plate 5.

[0023] Guide sleeves 14 are respectively installed at both ends of the rear side of the adapter plate 10, and guide posts 15 that slide in cooperation with the guide sleeves 14 are fixed on the base plate 11.

[0024] During stamping, the upper end face of the ejector pin 3-1 presses against the steel plate used as raw material. Under the pressure of the punch press, the upper die 2 moves downward, driving the stamping die head 4 to press down on the steel plate. At the same time, the forming sleeve 3-2 is pressed down. The stamping die head 4 first stamps the steel plate into a circular steel sheet. When the stamping die head 4 continues to move downward, the flared mouth 4-1 of the stamping die head 4 presses down on the circular steel sheet, causing the periphery of the circular steel sheet to deform as the forming sleeve 3-2 moves down, until a bowl-shaped bearing outer ring blank is formed. Then, the nozzle 7 blows out high-pressure gas, blowing the stamped bearing outer ring blank into the material box placed behind the punch press. The scrap material cut by the cutter 9 falls into the scrap box through the scrap hole 8.

[0025] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A stamping die for blanking outer rings of bearings, comprising a lower die (1) and an upper die (2) that can move up and down, located directly above the lower die (1), characterized in that: The lower mold (1) is provided with a forming die head (3), and the upper mold (2) below the forming die head (3) is provided with a hollow stamping die head (4). The lower end of the stamping die head (4) has an inwardly contracting flared mouth (4-1). The forming die head (3) includes a push rod (3-1) provided in the lower mold (1) and a forming sleeve (3-2) slidably provided on the upper end of the push rod (3-1). A guide plate (5) is suspended below the upper mold (2). 5) Several compression springs (6) are connected to the upper mold (2). The stamping die head (4) is slidably engaged with the guide plate (5). The front side of the guide plate (5) is provided with a nozzle (7) for blowing high-pressure gas towards the push rod (3-1). The lower mold (1) located behind the push rod (3-1) is provided with a waste hole (8). The upper mold (2) is equipped with a cutter (9) corresponding to the position of the waste hole (8). The cutter (9) is slidably engaged with the guide plate (5).

2. The stamping die for blanking the outer ring of a bearing as described in claim 1, characterized in that: The upper die (2) is fixed with a transition plate (10) on its upper end face, and the lower die (1) is fixed with a base plate (11) on its bottom surface. The transition plate (10) is fixed to the punch of the punch press, and the base plate (11) is fixed on the punch press worktable.

3. The stamping die for blanking the outer ring of a bearing as described in claim 2, characterized in that: The bottom of the top rod (3-1) is fixed to the bottom plate (11). The forming sleeve (3-2) is connected to three circumferentially distributed connecting rods (3-3). The connecting rods (3-3) pass through the lower mold (1) and the bottom plate (11) and are connected to a flange (3-4). The bottom surface of the flange (3-4) is provided with a return spring (12) to reset the forming sleeve (3-2) upward.

4. The stamping die for blanking the outer ring of a bearing as described in claim 3, characterized in that: The upper mold (2) is provided with tie rods (13) at the corners, and the lower end of the tie rods (13) is threadedly connected to the guide plate (5).

5. The stamping die for blanking the outer ring of a bearing as described in claim 4, characterized in that: Guide sleeves (14) are installed at both ends of the rear side of the adapter plate (10), and guide posts (15) that slide with the guide sleeves (14) are fixed on the base plate (11).

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