Semicircular bearing outer ring bending die tool

Abstract

The utility model relates to a semicircular bearing outer ring bending die tool which is provided with a bottom plate, a lower bending die is installed on the bottom plate, an upper bending die capable of doing lifting motion is arranged over the lower bending die, the outer ring of the lower end face of the upper bending die is provided with an outer conical surface, and the upper end face of the lower bending die is provided with an inner conical surface correspondingly matched with the outer conical surface. At least two positioning pins which are evenly distributed in the circumferential direction are arranged in an inner ring of the lower bending die, a workpiece to be bent is positioned at the upper ends of the positioning pins, and positioning holes correspondingly matched with the positioning pins are formed in the upper bending die. According to the utility model, the workpiece is fixed on the bending lower die through the positioning pin, and the bending upper die is provided with the positioning hole corresponding to the positioning pin, so that the bending upper die and the bending lower die can be ensured to be accurately matched during bending processing, the two ends of the workpiece can be bent and formed by one-time clamping, the working procedure is simplified, and the working efficiency is improved. And the accuracy of bending sizes of two ends of the workpiece is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, in particular to a semicircular bearing outer ring bending die tooling. Background Art

[0002] Due to the requirements of installation and processing technology, before the semicircular bearing is processed on the outer ring semicircular arc, the two ends of the outer ring plate must be bent into a certain angle as required. Its function is to prevent the outer ring from slipping out of the bearing seat hole when the bearing rotates back and forth in the circumferential direction during operation.

[0003] In the existing mold tooling, when the outer ring plate is bent, the workpiece is placed on the bending lower die, and the bending upper die is lifted and lowered to cooperate with the bending lower die to complete the bending process at both ends of the workpiece.

[0004] Due to the lack of effective positioning of the workpiece on the bending lower die, the workpiece is in a free state. Not only is it inconvenient to align the upper and lower dies, but the bending at both ends of the workpiece needs to be processed in two steps. The dimensional deviation of the product processed in the free state is also large. Summary of the invention

[0005] The technical problem to be solved by the utility model is: in order to overcome the deficiencies in the prior art, the utility model provides a semicircular bearing outer ring bending die tooling which simplifies the process and facilitates die alignment.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a semicircular bearing outer ring bending mold tooling, comprising a bottom plate, a bending lower mold is installed on the bottom plate, a bending upper mold that can perform lifting movement is arranged directly above the bending lower mold, the outer ring of the lower end face of the bending upper mold has an outer conical surface, the upper end face of the bending lower mold has an inner conical surface corresponding to the outer conical surface, at least two circumferentially evenly distributed positioning pins are arranged in the inner ring of the bending lower mold, a workpiece to be bent is positioned at the upper end of the positioning pins, and a positioning hole corresponding to the positioning pins is opened on the bending upper mold.

[0007] Specifically, a lower die seat is fixed on the bottom plate, an upper die seat corresponding to the lower die seat is provided directly above the lower die seat, a die handle for pushing the upper die seat up and down is fixedly connected to the upper end surface of the upper die seat, the bending upper die is fixed to the lower end surface of the upper die seat, the bending lower die is clamped in the lower die seat, and the positioning pin is fixed on the lower die seat.

[0008] Furthermore, an axial annular groove is provided on the lower die seat, the bending lower die is clamped in the axial annular groove, the outer ring surface of the bending lower die is provided with an outer step, the inner ring surface of the bending lower die is provided with an inner step, the upper end surface of the lower die seat is connected with a clamping bolt clamped on the outer step, and the inner wall of the axial annular groove has an outer convex step that abuts against the inner step.

[0009] Preferably, in order to facilitate the disassembly and assembly of the bending lower die, the bending lower die is a half-type structure, and the bottom surface of the bending lower die is spaced from the bottom surface of the axial ring groove.

[0010] Furthermore, a connecting plate is installed between the upper die base and the die handle.

[0011] The beneficial effect of the utility model is that the utility model fixes the workpiece on the bending lower die through the locating pins, and the bending upper die is provided with locating holes corresponding to the locating pins, so that during the bending process, the bending upper die and the bending lower die can be accurately aligned, and the bending forming of the two ends of the workpiece can be completed by one clamping, which simplifies the process and improves the accuracy of the bending dimensions of the two ends of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0013] Figure 1 It is a cross-sectional structural schematic diagram of the utility model.

[0014] Figure 2 yes Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0015] In the figure: 1. bottom plate, 2. bending lower die, 2-1. inner conical surface, 2-2. outer step, 2-3. inner step, 3. bending upper die, 3-1. outer conical surface, 3-2. positioning hole, 4. positioning pin, 5. workpiece, 6. lower die seat, 6-1. axial ring groove, 6-2. outer convex step, 7. upper die seat, 8. die handle, 9. connecting plate. DETAILED DESCRIPTION

[0016] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0017] like Figure 1 , Figure 2 The tooling for bending the outer ring of a semicircular bearing is shown, and comprises a base plate 1, on which a lower die seat 6 is fixed, and an upper die seat 7 is arranged correspondingly above the lower die seat 6. The upper die seat 7 is fixedly connected to a die handle 8 via a connecting plate 9, and the die handle 8 is pushed up and down by a slider of a bending machine, thereby pushing the upper die seat 7 to move up and down relative to the lower die seat 6.

[0018] A bending upper die 3 is fixed on the lower end surface of the upper die seat 7, and an axial annular groove 6-1 is provided on the lower die seat 6, and a bending lower die 2 is installed in the axial annular groove 6-1. The bending lower die 2 is a Hough structure, and the bottom surface of the bending lower die 2 is spaced apart from the bottom surface of the axial annular groove 6-1. The bending lower die 2 with such a structure adopts the Hough structure and is short in length, so it is easy to install and disassemble quickly.

[0019] Two centrally symmetrical positioning pins 4 are fixed on the lower die seat 6 inside the axial annular groove 6-1. The upper ends of the two positioning pins 4 protrude from the upper end surface of the lower die seat 6. The workpiece 5 to be bent is positioned on the upper ends of the two positioning pins 4. The bending upper die 3 is provided with positioning holes 3-2 corresponding to the positioning pins 4.

[0020] The outer circle of the lower end surface of the bending upper die 3 has an outer conical surface 3-1, and the upper end surface of the bending lower die 2 has an inner conical surface 2-1 corresponding to the outer conical surface 3-1. The cone angles of the outer conical surface 3-1 and the inner conical surface 2-1 can be determined according to the bending angle of the outer circle of the workpiece 5 specified by the technical requirements, such as 15 degrees, 30 degrees or 45 degrees.

[0021] An outer step 2-2 is provided on the outer ring surface of the bending lower die 2, and an inner step 2-3 is provided on the inner ring surface of the bending lower die 2. A clamping bolt which is clamped on the outer step 2-2 is connected to the upper end surface of the lower die seat 6, and an outer convex step 6-2 which abuts against the inner step 2-3 is provided on the inner wall of the axial ring groove 6-1. In this way, the bending lower die 2 can be fixed in the axial ring groove 6-1 of the lower die seat 6.

[0022] At the beginning, the slider of the bending machine is at the highest point, and the upper die seat 7 and the lower die seat 6 are in a state of being separated from each other. Then the workpiece 5 is placed on the two positioning pins 4 for positioning and fixing. At this time, the bending machine starts to run. When the bending upper die 3 is close to the bending lower die 2, the two positioning pins 4 are correspondingly inserted into the positioning holes 3-2 of the bending upper die 3 to guide the movement of the bending upper die 3. When the bending upper die 3 continues to move downward, the two ends of the workpiece 5 are bent and formed synchronously through the cooperation between the outer conical surface 3-1 of the bending upper die 3 and the inner conical surface 2-1 of the bending lower die 2; when the slider of the bending machine moves down to the lowest point, the two ends of the workpiece 5 are bent, and at the same time, the slider starts to move upward to the starting position to start the bending and forming of the next workpiece 5.

[0023] The utility model fixes the workpiece 5 on the bending lower die 2 by means of the locating pin 4, and the bending upper die 3 is provided with a locating hole 3-2 corresponding to the locating pin 4, so that during the bending process, the alignment between the bending upper die 3 and the bending lower die 2 can be ensured to be accurate, and the bending forming of the two ends of the workpiece 5 can be completed by one clamping, which simplifies the process and improves the accuracy of the bending dimensions of the two ends of the workpiece 5.

[0024] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A semicircular bearing outer ring bending die tooling, comprising a bottom plate (1), characterized in that: A bending lower die (2) is installed on the bottom plate (1), and a bending upper die (3) capable of lifting and lowering movement is arranged directly above the bending lower die (2); the outer ring of the lower end surface of the bending upper die (3) has an outer conical surface (3-1), and the upper end surface of the bending lower die (2) has an inner conical surface (2-1) corresponding to the outer conical surface (3-1); at least two circumferentially evenly distributed positioning pins (4) are arranged in the inner ring of the bending lower die (2); a workpiece (5) to be bent is positioned at the upper end of the positioning pins (4), and a positioning hole (3-2) corresponding to the positioning pins (4) is opened on the bending upper die (3).

2. The semicircular bearing outer ring bending die tooling according to claim 1, characterized in that: A lower die base (6) is fixed on the bottom plate (1), an upper die base (7) corresponding to the lower die base (6) is arranged directly above the lower die base (6), a die handle (8) for pushing the upper die base (7) to rise and fall is fixedly connected to the upper end surface of the upper die base (7), a bending upper die (3) is fixed on the lower end surface of the upper die base (7), a bending lower die (2) is clamped in the lower die base (6), and the positioning pin (4) is fixed on the lower die base (6).

3. The semicircular bearing outer ring bending die tooling as claimed in claim 2, characterized in that: The lower die seat (6) is provided with an axial annular groove (6-1), the bending lower die (2) is clamped in the axial annular groove (6-1), the outer ring surface of the bending lower die (2) is provided with an outer step (2-2), the inner ring surface of the bending lower die (2) is provided with an inner step (2-3), the upper end surface of the lower die seat (6) is connected with a clamping bolt clamped on the outer step (2-2), and the inner wall of the axial annular groove (6-1) is provided with an outer convex step (6-2) against the inner step (2-3).

4. The semicircular bearing outer ring bending die tooling as claimed in claim 3 is characterized by: The bending lower die (2) is a Hough-type structure, and the bottom surface of the bending lower die (2) is spaced apart from the bottom surface of the axial annular groove (6-1).

5. The semicircular bearing outer ring bending die tooling as claimed in claim 2, characterized in that: A connecting plate (9) is installed between the upper die seat (7) and the die handle (8).

Images