Spin riveting binding head

Abstract

The utility model discloses a spin riveting binding head which comprises a shell, a workpiece to be machined is arranged below the shell, a machining part used for conducting binding machining on an opening of the workpiece is arranged on the shell, and an included angle a is formed between the machining part and the shell. The rotary riveting binding head solves the problem that in the prior art, a traditional rotary riveting binding head is low in machining quality. The device has the advantages of being simple in structure, convenient to use, high in stability, high in yield and the like.

Description

Technical Field

[0001] The utility model relates to the field of workpiece processing equipment, and more specifically to a rotary riveting hemming head. Background Art

[0002] At present, a new type of hemming head for wheel hub unit is disclosed on the Chinese Patent Network, with the publication number CN209597950U, which belongs to the hemming head field. It includes a hemming spindle and a hemming head, wherein the front end center of the hemming spindle has a mounting groove, a limit platform is fixed on the wall of the mounting groove, an adjusting bolt is also installed on the hemming spindle, which is screwed with the hemming spindle and the front end extends into the mounting groove, a locking block is installed in the mounting groove, an abutment platform is provided at the upper end of the locking block, the side of which contacts the limit platform, an elastic buffer pad with an "L"-shaped cross section is provided on the locking block, and a transverse adjustment groove is provided on the bottom surface of the locking block, the depth of which gradually decreases toward the center of the locking block and matches the front end of the adjusting bolt, and the hemming head and the locking block are detachably fixed. The hemming head is detachably connected to the hemming spindle, and when the hemming head is damaged, it can be disassembled and replaced, and the inclination angle between the hemming head and the rotating spindle can be adjusted, so as to meet the adjustment needs during use and form hemming of different angles.

[0003] The novel rotary riveted hemming head for the hub unit in the above patent has the advantage of adjustable inclination angle, but it adopts an elastic buffer pad set in the locking position to achieve the angle adjustment of the hemming head. Although this method can adjust the inclination angle of the hemming head to a certain extent, the adjustment angle requires workers to constantly use tools to detect the inclination angle of the hemming head, and the use of elastic buffer pads is prone to shaking when processing the workpiece, resulting in changes in the inclination angle of the hemming head when processing the workpiece, resulting in a low yield rate of the processed workpiece. Utility Model Content

[0004] In order to overcome the problem of low processing quality of traditional rotary riveting hemming heads in the prior art, the utility model provides a rotary riveting hemming head with higher processing quality.

[0005] The utility model discloses a rotary riveting hemming head, comprising a shell, a workpiece to be processed is arranged below the shell, a processing part for hemming the opening of the workpiece is arranged on the shell, and an angle a is formed between the processing part and the shell.

[0006] Compared with the traditional vertical processing part, the processing part with an inclined angle can reduce the pressure during the rotary riveting, reduce the influence of the rotary riveting forming on the workpiece, and improve the production efficiency.

[0007] Preferably, a mounting portion for mounting the processing portion is provided in the shell, the mounting portion forms an angle a with the shell, and the processing portion is mounted at the lower end of the mounting portion.

[0008] Preferably, the mounting portion comprises a mounting through hole which is opened in the shell and forms an angle a with the shell, a rivet head mandrel is inserted into the mounting through hole, and a lower end of the rivet head mandrel is connected to the processing portion.

[0009] Preferably, at least two cylindrical roller bearings which are evenly distributed and cooperate with the rivet head mandrel are sleeved on the periphery of the rivet head mandrel, and a spacer sleeve is sleeved on the rivet head mandrel located between the two cylindrical roller bearings.

[0010] Preferably, the upper end of the shell is provided with an upper bearing cover for sealing the upper end of the mounting through hole, and the lower end of the shell is provided with a lower bearing cover for sealing the lower end of the mounting through hole. The upper bearing cover is connected to the upper end of the shell by setting screws, and the lower bearing cover is connected to the lower end of the shell by setting screws.

[0011] Preferably, a bearing seat for mounting the rivet head mandrel is embedded in the shell at the upper end of the mounting through hole, a spherical roller bearing is mounted on the upper end of the bearing seat, and the bearing seat and the spherical roller bearing are connected by screws.

[0012] Preferably, the longitudinal section of the processing portion is in an inverted "T" shape, the upper end of the processing portion is embedded in the lower end of the rivet head core shaft and is fixed with screws, and the bottom of the processing portion is provided with an annular processing groove matching the opening of the workpiece.

[0013] Preferably, the longitudinal section of the bearing seat is in an inverted "T" shape, a through hole vertically penetrating the bearing seat is provided at the center of the bearing seat, the upper end of the rivet head mandrel is embedded in the through hole, ball head plungers for limiting the upper end of the rivet head mandrel are embedded on the inner walls of the bearing seat at the left and right ends of the through hole, and limiting grooves matching the ball head plungers are respectively provided on the left and right sides of the upper end of the rivet head mandrel.

[0014] When in use, the utility model is fixed on the main shaft of the rotary riveting machine, the processing part is opposite to the workpiece and maintains an inclined angle a, the rotary riveting machine is started, the processing part rotates and applies pressure on the workpiece to complete the rotary riveting. The utility model adopts embedded installation and rigid connection with screws, the jitter generated during operation is small, the inclined angle a is not easy to change when processing the workpiece, the stability is high, and the yield rate of the processed workpiece is high.

[0015] The utility model has the following beneficial effects: simple structure, convenient use, high stability and high yield rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Attached Figure 1 It is a structural schematic diagram of the utility model.

[0017] Attached Figure 2It is a schematic diagram of the longitudinal section structure of the utility model.

[0018] Attached Figure 3 It is a front view of the utility model.

[0019] Attached Figure 4 It is a top view of the utility model.

[0020] Shell 1, workpiece 2, processing part 3, mounting through hole 4, rivet head mandrel 5, cylindrical roller bearing 6, spacer 7, upper bearing cover 8, lower bearing cover 9, bearing seat 10, spherical roller bearing 11, annular processing groove 12, ball head plunger 13, limit groove 14, through hole 15. DETAILED DESCRIPTION

[0021] The technical solution of the utility model is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0022] Embodiment: According to the attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 and attached Figure 4 For further explanation, a rotary riveting hemming head in this example includes a shell 1, a workpiece 2 to be processed is provided below the shell 1, a processing portion 3 for hemming the opening of the workpiece 2 is provided on the shell 1, and the processing portion 3 forms an angle a with the shell 1.

[0023] The housing 1 is provided with a mounting portion for mounting the processing portion 3 , the mounting portion and the housing 1 form an angle a, and the processing portion 3 is mounted at the lower end of the mounting portion.

[0024] The mounting portion includes a mounting through hole 4 which is opened in the shell 1 and forms an angle a with the shell 1 . A rivet head mandrel 5 is inserted into the mounting through hole 4 . The lower end of the rivet head mandrel 5 is connected to the processing portion 3 .

[0025] At least two cylindrical roller bearings 6 which are evenly distributed and used in conjunction with the rivet head mandrel 5 are sleeved on the periphery of the rivet head mandrel 5 , and a spacer sleeve 7 is sleeved on the rivet head mandrel 5 between the two cylindrical roller bearings 6 .

[0026] The upper end of the shell 1 is provided with an upper bearing cover 8 for sealing the upper end of the mounting through hole 4, and the lower end of the shell 1 is provided with a lower bearing cover 9 for sealing the lower end of the mounting through hole 4. The upper bearing cover 8 is connected to the upper end of the shell 1 by setting screws, and the lower bearing cover 9 is connected to the lower end of the shell 1 by setting screws.

[0027] A bearing seat 10 for mounting the rivet head mandrel 5 is embedded in the housing 1 located at the upper end of the mounting through hole 4. A spherical roller bearing 11 is sleeved on the upper end of the bearing seat 10. The bearing seat 10 and the spherical roller bearing 11 are connected by screws.

[0028] The longitudinal section of the processing part 3 is in an inverted "T" shape. The upper end of the processing part 3 is embedded in the lower end of the rivet head core shaft 5 and is fixed with screws. The bottom of the processing part 3 is provided with an annular processing groove 12 that matches the opening of the workpiece 2.

[0029] The longitudinal section of the bearing seat 10 is in an inverted "T" shape. A through hole 15 is provided in the center of the bearing seat 10 and vertically penetrates the bearing seat 10. The upper end of the rivet head mandrel 5 is embedded in the through hole 15. Ball head plungers 13 for limiting the upper end of the rivet head mandrel 5 are embedded on the inner wall of the bearing seat 10 located at the left and right ends of the through hole 15. Limiting grooves 14 matching the ball head plunger 13 are respectively provided on the left and right sides of the upper end of the rivet head mandrel 5.

[0030] The above description is only a specific embodiment of the present invention, but the structural features of the present invention are not limited thereto. Any changes or modifications made by any technician in the field of the present invention are included in the patent scope of the present invention.

Claims

1. A rotary riveting hemming head, comprising a housing (1), wherein a workpiece (2) to be processed is disposed below the housing (1), wherein: The shell (1) is provided with a processing portion (3) for performing a rolling process on the opening of the workpiece (2); the processing portion (3) and the shell (1) form an angle a.

2. The rotary riveting hemming head according to claim 1 is characterized in that: A mounting portion for mounting the processing portion (3) is provided in the shell (1), the mounting portion and the shell (1) form an angle a, and the processing portion (3) is mounted at the lower end of the mounting portion.

3. The rotary riveting hemming head according to claim 2 is characterized in that: The mounting portion comprises a mounting through hole (4) which is opened in the shell (1) and forms an angle a with the shell (1), a rivet head mandrel (5) is inserted into the mounting through hole (4), and the lower end of the rivet head mandrel (5) is connected to the processing portion (3).

4. The rotary riveting hemming head according to claim 3 is characterized in that: The rivet head mandrel (5) is provided with at least two cylindrical roller bearings (6) which are evenly distributed and used in conjunction with the rivet head mandrel (5) and a spacer sleeve (7) is provided on the rivet head mandrel (5) between the two cylindrical roller bearings (6).

5. The rotary riveting hemming head according to claim 3 is characterized in that: The upper end of the housing (1) is provided with an upper bearing cover (8) for sealing the upper end of the mounting through hole (4), and the lower end of the housing (1) is provided with a lower bearing cover (9) for sealing the lower end of the mounting through hole (4). The upper bearing cover (8) is connected to the upper end of the housing (1) by means of screws, and the lower bearing cover (9) is connected to the lower end of the housing (1) by means of screws.

6. The rotary riveting hemming head according to claim 3 is characterized in that: A bearing seat (10) for mounting a rivet head spindle (5) is embedded in the housing (1) located at the upper end of the mounting through hole (4), a spherical roller bearing (11) is mounted on the upper end of the bearing seat (10), and the bearing seat (10) and the spherical roller bearing (11) are connected by screws.

7. The rotary riveting hemming head according to claim 3 is characterized in that: The longitudinal section of the processing portion (3) is in an inverted "T" shape. The upper end of the processing portion (3) is embedded in the lower end of the rivet head mandrel (5) and is fixed by screws. The bottom of the processing portion (3) is provided with an annular processing groove (12) that matches the opening of the workpiece (2).

8. The rotary riveting hemming head according to claim 6, characterized in that: The longitudinal section of the bearing seat (10) is in an inverted "T" shape. A through hole (15) is provided at the center of the bearing seat (10) and vertically penetrates the bearing seat (10). The upper end of the rivet head mandrel (5) is embedded in the through hole (15). Ball head plungers (13) for limiting the upper end of the rivet head mandrel (5) are embedded on the inner walls of the bearing seat (10) at the left and right ends of the through hole (15). Limiting grooves (14) matching the ball head plungers (13) are provided on the left and right sides of the upper end of the rivet head mandrel (5).

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