Tapered roller bearing retainer window hole punching die device

Abstract

The utility model relates to the technical field of bearing manufacturing, in particular to a tapered roller bearing retainer window hole punching die device. Comprising an upper die base arranged on an upper workbench of a hydraulic machine, a lower die base arranged on a lower workbench of the hydraulic machine through a positioning screw, an upper discharging assembly and a lower discharging assembly which are arranged on the upper die base and the lower die base respectively, and a punching assembly which is arranged on the upper die base and used in cooperation with the upper discharging assembly and the lower discharging assembly. The punching assembly comprises a lower pressing plate arranged at the bottom of the upper die base, a lower pressing rod vertically arranged on the lower pressing plate, a guide cylinder arranged at the bottom of the upper die base and a cylindrical positioning base vertically arranged in the guide cylinder in a sliding mode. When the downward pressing rod moves downwards, the multiple limiting grooves formed in the conical bottom of the downward pressing rod are driven to move downwards, so that the multiple punching sliding blocks are driven to synchronously move outwards in the oblique downward direction, window holes needed by the tapered roller bearing retainer are punched at a time, the punching efficiency is improved, the product consistency is guaranteed, and the scattering difference is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing inner component assembly, in particular to a tapered roller bearing retainer window hole punching die device. Background Art

[0002] Tapered roller bearings are a key component widely used in various rotating machinery, and bearing retainers play a vital role. Currently, punching is a common method for producing the retainer window holes in tapered roller bearings. The punch presses used are often traditional single-stroke models. This window punching process is inefficient and can lead to increased dimensional variation in key product dimensions. Utility Model Content

[0003] The purpose of the utility model is to provide a tapered roller bearing retainer window hole punching die device for solving the problems mentioned in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tapered roller bearing retainer window hole punching die device, comprising an upper die base arranged on the upper worktable of a hydraulic press and a lower die base arranged on the lower worktable of the hydraulic press through a positioning screw, an upper discharge assembly and a lower discharge assembly respectively arranged on the upper die base and the lower die base, and a punching assembly arranged on the upper die base and used in conjunction with the upper discharge assembly and the lower discharge assembly, the punching assembly comprising a lower pressure plate arranged at the bottom of the upper die base, a lower pressure rod vertically arranged on the lower pressure plate, a guide cylinder arranged at the bottom of the upper die base, and a vertical sliding member arranged in the guide cylinder. The bottom of the lower pressure rod is conical and has a plurality of limit grooves along the circumference of the conical surface. The bottom of the positioning seat is provided with a plurality of inclined sliding grooves along the circumference. The sliding grooves are arranged in a one-to-one correspondence with the limit grooves. A punching slider is slidably connected in the sliding groove, and one end of the punching slider is adapted and slidably matched with the limit groove. A reset spring is provided on the punching slider, and the two ends of the reset spring are respectively connected with one end of the punching slider and the inner wall of the positioning seat, and the lower pressure rod slides vertically with the positioning seat.

[0005] Furthermore, the upper unloading assembly includes an upper punching rod that slides vertically in the middle of the upper mold base, a pressure plate that slides vertically in the upper mold base, and a retainer punching rod that slides vertically on the lower pressure plate and is located at the bottom of the positioning seat; the bottom of the upper punching rod is located at the upper part of one end of the pressure plate, and the upper part of the retainer punching rod is located at the bottom of the other end of the pressure plate.

[0006] Furthermore, the lower unloading assembly includes a lower punching rod vertically slidingly arranged on the lower die base, a spring upper pressure plate and a spring lower pressure plate arranged on the upper and bottom parts of the positioning screw; the spring upper pressure plate slides with the positioning screw, and a lower punching rod reset spring is provided between the spring upper pressure plate and the spring lower pressure plate.

[0007] Furthermore, a guide post is connected to the lower die base, and the guide post passes through the upper die base and is slidably engaged with the upper die base.

[0008] Furthermore, the lower die base is provided with a plurality of blanking openings corresponding one to one with the punching slide blocks.

[0009] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0010] The utility model is used for punching the window holes of the tapered roller bearing retainer at one time; when the lower pressure rod moves downward, multiple limit slots provided on the conical bottom of the lower pressure rod are driven to move downward, thereby driving multiple punching slide blocks to move outward synchronously along the oblique downward direction, so as to punch the inner wall of the conical surface of the tapered roller bearing retainer, thereby improving the punching efficiency, ensuring product consistency, and reducing dispersion. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a cross-sectional view of the overall structure of the utility model;

[0012] Figure 2 This is a cross-sectional view of the upper die base of the utility model;

[0013] Figure 3 This is a cross-sectional view of the lower die base of the utility model;

[0014] Figure 4 This is a top view of the utility model;

[0015] Figure 5 It is a bottom view of the utility model.

[0016] In the picture:

[0017] 1. Upper die base; 2. Lower die base; 3. Upper discharge assembly; 4. Lower discharge assembly; 5. Punching assembly; 6. Lower pressure plate; 7. Lower pressure rod; 8. Guide cylinder; 9. Positioning seat; 10. Return spring of upper punching rod; 11. Slide groove; 12. Punching slider; 13. Return spring; 14. Pressure plate; 15. Retainer punching rod; 16. Lower punching rod; 17. Positioning screw; 18. Spring upper pressure plate; 19. Spring lower pressure plate; 20. Return spring of lower punching rod; 21. Guide column; 22. Blanking port; 23. Tapered roller bearing retainer; 24. Upper punching rod. DETAILED DESCRIPTION

[0018] See also Figures 1 to 5, a tapered roller bearing retainer window hole punching die device, comprising an upper die base 1 arranged on the upper worktable of a hydraulic press and a lower die base 2 arranged on the lower worktable of the hydraulic press through a positioning screw 17, an upper unloading assembly 3 and a lower unloading assembly 4 respectively arranged on the upper die base 1 and the lower die base 2, and a punching assembly 5 arranged on the upper die base 1 and used in conjunction with the upper unloading assembly 3 and the lower unloading assembly 4; when punching the tapered roller bearing retainer 23, the tapered roller bearing retainer 23 is first placed on the lower die base 2, and then the upper worktable of the hydraulic press drives the upper die base 1 and the punching assembly 5 arranged on the upper die base 1 to punch the tapered roller bearing retainer 23. After the punching is completed, the upper worktable of the hydraulic press moves upward. If the tapered roller bearing retainer 23 is stuck at the upper die base 1, the material is unloaded through the upper unloading assembly 3. If the tapered roller bearing retainer 23 is stuck at the lower die base 2, the material is unloaded through the lower unloading assembly 4.

[0019] The punching assembly 5 for realizing the above-mentioned punching operation is composed of a lower pressure plate 6 arranged at the bottom of the upper die base 1, a lower pressure rod 7 vertically arranged on the lower pressure plate 6, a guide cylinder 8 arranged at the bottom of the upper die base 1, and a cylindrical positioning seat 9 vertically slidingly arranged in the guide cylinder 8; when the upper worktable of the hydraulic press drives the upper die base 1 to move downward, the lower pressure plate 6, the lower pressure rod 7 and the positioning seat 9 are driven downward together, and the positioning seat 9 moves down to the bottom end of the inner wall of the tapered roller bearing retainer 23 to support it, and when the lower pressure rod 7 moves downward, the multiple limit grooves opened on the conical bottom of the lower pressure rod 7 move downward. Since the limit grooves and the slide grooves 11 are arranged one to one and one end of the punching slider 12 is adapted and slidably matched with the limit grooves, the limit grooves move downward, driving the multiple inclined slide grooves opened along the circumferential direction at the bottom of the positioning seat 9. The punching slider 12 in the groove 11 moves outward synchronously along the oblique downward direction to punch the inner wall of the tapered roller bearing retainer 23. The remaining material from the punching falls from the multiple blanking openings 22 corresponding to the punching slider 12 on the lower die base 2. After the punching is completed, the upper worktable of the hydraulic press moves upward, driving the lower pressure plate 6 and the lower pressure rod 7 to move upward. An upper punching rod reset spring 10 is connected between the lower pressure plate 6 and the positioning seat 9, so the positioning seat 9 will also move up together, and synchronously under the action of the reset spring 13, the punching slider 12 returns to its original position to carry out the subsequent tapered roller bearing retainer 23 punching operation. Finally, the stability during punching is increased by connecting the guide column 21 that slides with the upper die base 1 on the lower die base 2.

[0020] The upper unloading assembly 3 for unloading the upper die base 1 is composed of an upper punching rod 24 which is vertically slidably arranged in the middle of the upper die base 1, a pressure plate 14 which is vertically slidably arranged in the upper die base 1, and a retainer punching rod 15 which is vertically slidably arranged on the lower pressure plate 6 and is located at the bottom of the positioning seat 9; in the initial state, the upper punching rod 24, the pressure plate 14 and the retainer punching rod 15 make the upper punching rod 24 stuck on the upper part of the upper die base 1, the pressure plate 14 stuck on the upper part of the lower pressure plate 6, and the middle protrusion of the retainer punching rod 15 stuck on the bottom of the guide cylinder 8. When punching, the tapered roller bearing retainer 23 lifts the retainer punching rod 15. The bottom of the upper punching rod 24 is located at the upper part of one end of the pressure plate 14, and the upper part of the retainer punching rod 15 is located at the bottom of the other end of the pressure plate 14, so the upper punching rod 24 and the pressure plate 14 will be lifted up synchronously. After the punching is completed, the upper worktable of the hydraulic press moves upward to drive the upper die base 1 to move upward to the upper crossbeam of the hydraulic press (fixed on the hydraulic press housing and will not move with the upper worktable). The upper crossbeam prevents the upper punching rod 24 from continuing to move upward, and when the upper die base 1 continues to move upward, the upper punching rod 24 presses against the pressure plate 14 and the retainer punching rod 15 to push out the tapered roller bearing retainer 23 stuck in the upper die base 1 to complete the unloading.

[0021] The lower unloading assembly 4 for unloading the lower die base 2 is composed of a lower punching rod 16 vertically slidingly arranged on the lower die base 2, a spring upper pressure plate 18 and a spring lower pressure plate 19 arranged on the upper and bottom of the positioning screw 17; the lower punching rod 16 is against the bottom of the tapered roller bearing retainer 23. When punching, the tapered roller bearing retainer 23 moves downward, causing the spring upper pressure plate 18 slidingly matched with the positioning screw 17 to move downward, thereby causing the lower punching rod reset spring 20 arranged between the spring upper pressure plate 18 and the spring lower pressure plate 19 to contract. After the punching is completed, the restriction is lost, the lower punching rod reset spring 20 stretches, driving the spring upper pressure plate 18 to move upward, thereby driving the lower punching rod 16 to move upward, and ejecting the tapered roller bearing retainer 23 stuck on the lower die base 2.

[0022] The working principle of the utility model is as follows: when punching the tapered roller bearing retainer 23, the tapered roller bearing retainer 23 is first placed in the placement groove opened on the lower die seat 2 and adapted to the shape of the tapered roller bearing retainer 23 by the manipulator, and then the hydraulic press is started, and the upper die seat 1 is driven downward by the workbench of the hydraulic press, and then the lower pressure plate 6, the lower pressure rod 7 and the positioning seat 9 are driven downward. At this time, the upper punching rod 24, the pressure plate 14 and the retainer punching rod 15 fall freely and are stuck in the corresponding position. When the lower pressure rod 7 moves downward, the conical surface at its end causes multiple punching slides 12 to move outward synchronously along the oblique downward direction, and the positioning seat 9 moves to the inner wall of the tapered roller bearing retainer 23, and then the multiple punching slides 12 are used to punch the conical surface of the inner wall of the tapered roller bearing retainer 23, and the reset spring 13 is stretched. At this time, the lower punching rod 16 is pushed downward by the bottom of the tapered roller bearing retainer 23, so that the spring upper pressure plate 18 is lowered. The upper punching rod 24 is pressed against the upper die base 1 and the lower pressing plate 6, the lower pressing rod 7 and the positioning seat 9 are pressed against the upper die base 1. When the upper die base 1 continues to move upward, the punching rod 15 will push out the tapered roller bearing retainer 23 stuck on the upper die base 1 and collect it by the robot; if the tapered roller bearing retainer 23 after punching is stuck in the placement groove of the lower die base 2, then after the positioning seat 9 moves up, the lower punching rod reset spring 20 loses its restriction and stretches, driving the spring upper pressure plate 18 to move upward, and then driving the lower punching rod 16 to move upward, pushing out the tapered roller bearing retainer 23, and collecting it by the robot.

Claims

1. A tapered roller bearing retainer window hole punching die device, comprising an upper die base (1) arranged on an upper worktable of a hydraulic press, a lower die base (2) arranged on a lower worktable of the hydraulic press via a positioning screw (17), an upper discharge assembly (3) and a lower discharge assembly (4) respectively arranged on the upper die base (1) and the lower die base (2), and a punching assembly (5) arranged on the upper die base (1) and used in conjunction with the upper discharge assembly (3) and the lower discharge assembly (4), characterized in that: The punching assembly (5) comprises a lower pressing plate (6) arranged at the bottom of the upper die seat (1), a lower pressing rod (7) arranged vertically on the lower pressing plate (6), a guide cylinder (8) arranged at the bottom of the upper die seat (1), and a cylindrical positioning seat (9) arranged vertically in the guide cylinder (8); an upper punching rod return spring (10) is connected between the lower pressing plate (6) and the positioning seat (9), the bottom of the lower pressing rod (7) is conical and has a plurality of limit grooves along the circumference of the conical surface, and the bottom of the positioning seat (9) is circumferentially opened. A plurality of inclined slide grooves (11) are provided, and the slide grooves (11) are arranged in a one-to-one correspondence with the limit grooves. A punching slider (12) is slidably connected in the slide groove (11), and one end of the punching slider (12) is adapted to and slidably fits with the limit groove. A return spring (13) is sleeved on the punching slider (12), and the two ends of the return spring (13) are respectively connected to one end of the punching slider (12) and the inner wall of the positioning seat (9), and the lower pressure rod (7) is vertically slidably fitted with the positioning seat (9).

2. A tapered roller bearing retainer window punching die device according to claim 1, characterized in that: The upper unloading assembly (3) comprises an upper punching rod (24) vertically slidingly arranged in the middle of the upper die base (1), a pressure plate (14) vertically slidingly arranged in the upper die base (1), and a retainer punching rod (15) vertically slidingly arranged on the lower pressure plate (6) and located at the bottom of the positioning seat (9); the bottom of the upper punching rod (24) is located at the upper part of one end of the pressure plate (14), and the upper part of the retainer punching rod (15) is located at the bottom of the other end of the pressure plate (14).

3. A tapered roller bearing retainer window punching die device according to claim 2, characterized in that: The lower unloading assembly (4) comprises a lower punching rod (16) vertically slidably arranged on the lower die base (2), a spring upper pressure plate (18) and a spring lower pressure plate (19) arranged on the upper and lower parts of the positioning screw (17); the spring upper pressure plate (18) is slidably engaged with the positioning screw (17), and a lower punching rod return spring (20) is provided between the spring upper pressure plate (18) and the spring lower pressure plate (19).

4. A tapered roller bearing retainer window punching die device according to claim 2, characterized in that: A guide post (21) is connected to the lower die base (2), and the guide post (21) passes through the upper die base (1) and is in sliding engagement with the upper die base (1).

5. A tapered roller bearing retainer window punching die device according to claim 2, characterized in that: The lower die base (2) is provided with a plurality of blanking openings (22) corresponding one to one with the punching slide blocks (12).

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