Metal insert hexagonal flange face locking nut press-fitting device

Abstract

The utility model belongs to the field of stamping equipment, and provides a metal insert hexagonal flange face locking nut press-fitting device which comprises a rack platen, a rotating disc, a lower die assembly and an upper die assembly. Wherein the turntable is rotationally mounted on a rack bedplate and can rotate around the central axis of the turntable; the lower die assembly comprises a plurality of lower dies which are installed on the rotating disc and can rotate along with the rotating disc. The lower dies are evenly distributed around the rotating center axis of the rotating disc. The upper die assembly comprises stamping die heads opposite to the rotating disc in a spaced mode and a stamping die driving mechanism in transmission connection with the stamping die heads, the stamping die heads can be sequentially opposite to the front faces of the lower dies in the rotating process of the rotating disc, the stamping die driving mechanism is used for driving the stamping die heads to be close to or away from the lower dies, and the moving direction of the stamping die heads is parallel to the axial direction of the rotating disc.

Description

Technical Field

[0001] The present application belongs to the field of stamping equipment, and in particular relates to a press-fitting device for a metal-inserted hexagonal flange locking nut. Background Art

[0002] In the field of mechanical engineering, fasteners are key components for connecting and fixing various parts. Their performance and reliability directly affect the stability and safety of the entire mechanical system. Hexagonal flange locking nuts with metal inserts have a good locking effect, but the pressing equipment used to press the metal inserts onto the hexagonal flange locking nuts in traditional technology often takes a long time due to structural design defects, which seriously affects the production efficiency of the metal insert hexagonal flange locking nuts. Therefore, it is necessary to solve the above technical problems. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a metal insert hexagonal flange face locking nut press-fitting device to solve the technical problem of low efficiency of press-fitting equipment in the prior art.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted in the present application is: to provide a metal insert hexagonal flange face locking nut press-fitting device, comprising:

[0005] Rack table;

[0006] A turntable, rotatably mounted on the frame plate and capable of rotating around its own central axis;

[0007] A lower mold assembly, comprising a plurality of lower molds mounted on the turntable and capable of rotating with the turntable, wherein the plurality of lower molds are evenly distributed around the rotation center axis of the turntable;

[0008] The upper die assembly includes a die head spaced opposite to the turntable and a die driving mechanism transmission-connected to the die head. The die head can be opposite to the front sides of several lower dies in turn during the rotation of the turntable. The die driving mechanism is used to drive the die head to approach or move away from the lower die and the moving direction of the die head is parallel to the axial direction of the turntable.

[0009] Optionally, the turntable is provided with a plurality of through holes parallel to the axial direction of the turntable and for the lower die to pass through, and the lower die assembly further comprises a pad block provided between the turntable and the frame platen and a first spring connected between the turntable and the lower die;

[0010] The deformation direction of the first spring is parallel to the axial direction of the turntable. The pad is used to be spaced opposite to the lower die when the die head is not extruding the lower die, and is also used to support the lower die passing through the through hole during the process when the die head extrudes the lower die and overcomes the elastic force of the first spring.

[0011] Optionally, the lower die assembly further comprises a lower die seat connected to the turntable;

[0012] The lower die base forms a sliding cavity for accommodating the lower die, the lower die is slidably connected to the lower die base through the inner wall of the sliding cavity, and the sliding direction of the lower die relative to the lower die base is parallel to the moving direction of the lower die passing through the through hole.

[0013] Optionally, the die driving mechanism comprises a support connected to the frame platen and a hydraulic cylinder mounted on the support;

[0014] The die head is connected to the output end of the hydraulic cylinder, and the output direction of the hydraulic cylinder is parallel to the sliding direction of the lower die relative to the lower die seat.

[0015] Optionally, the turntable is transmission-connected with a driving mechanism for driving the turntable;

[0016] The driving mechanism comprises a servo motor mounted on the frame via a motor seat and a first spline shaft connected to the output end of the servo motor via a coupling, and further comprises a spline sleeve sleeved on the first spline shaft, a second spline shaft movably mounted inside the spline sleeve and capable of moving relative to the spline sleeve along the axial direction of the spline sleeve, and a second spring sleeved on the second spline shaft;

[0017] One end of the second spline shaft away from the first spline shaft is connected to the turntable and can drive the turntable to rotate, the two ends of the second spring are respectively connected to the spline sleeve and the turntable, and the deformation direction of the second spring is parallel to the sliding direction of the second spline shaft relative to the spline sleeve.

[0018] Optionally, a flange portion is formed at one end of the spline sleeve facing the rotating disk, and the second spring abuts between the flange portion and the rotating disk.

[0019] Optionally, the length of the second spline shaft along its own axial direction is greater than the length of the first spline shaft along its own axial direction.

[0020] Optionally, a bearing seat is connected to the frame plate, and a radial thrust bearing is installed on the bearing seat;

[0021] The radial thrust bearing is sleeved on the outside of the spline sleeve and is used to support the spline sleeve to rotate relative to the frame plate.

[0022] The beneficial effect of the metal insert hexagonal flange face locking nut press-fitting device provided by the present application is that: compared with the prior art, a turntable and a plurality of lower dies distributed on the turntable around the central axis of the turntable are provided in the metal insert hexagonal flange face locking nut press-fitting device provided by the present application. In this way, as the turntable continues to rotate, when the metal insert and the hexagonal flange face locking nut placed on one of the lower dies are in the press-fitting process, the metal insert and the hexagonal flange face locking nut in the remaining lower dies can be placed and taken out, which can effectively shorten the time for the metal insert to be pressed onto the hexagonal flange face locking nut, thereby significantly improving the press-fitting efficiency of the metal insert hexagonal flange face locking nut press-fitting device in the present application, which is far superior to the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0024] Figure 1 A schematic diagram of the overall structure of a metal insert hexagonal flange locking nut press-fitting device provided in an embodiment of the present application;

[0025] Figure 2 A schematic top view of the structure of a metal insert hexagonal flange locking nut press-fitting device provided in an embodiment of the present application;

[0026] Figure 3 For along Figure 2 The cross-sectional structure diagram along the AA line;

[0027] Figure 4 for Figure 3 A magnified view of the structure at B in the middle;

[0028] Figure 5 for Figure 3 A magnified view of the structure at C in the middle;

[0029] Figure 6 It is a schematic diagram of the processing state of the metal insert hexagonal flange locking nut in the embodiment of the present application.

[0030] Among them, the reference numerals in the figure are: 101, frame plate; 102, turntable; 103, lower die; 104, die head; 105, through hole; 106, cushion block; 107, first spring; 108, lower die seat; 109, sliding cavity; 110, support; 111, hydraulic cylinder; 112, motor seat; 113, servo motor; 114, coupling; 115, first spline shaft; 116, spline sleeve; 117, second spline shaft; 118, second spring; 119, flange; 120, bearing seat; 121, radial thrust bearing; 201, metal insert; 202, hexagonal flange face locking nut. DETAILED DESCRIPTION

[0031] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0032] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0033] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0035] Please also read Figures 1 to 6 Now, a metal insert hexagonal flange face locking nut press-fitting device provided in an embodiment of the present application is described. The metal insert hexagonal flange face locking nut press-fitting device comprises a frame plate 101, a turntable 102, a lower die assembly and a lower die assembly. Among them:

[0036] The turntable 102 is rotatably mounted on the frame platen 101 and can rotate around its own central axis; the lower die assembly includes a plurality of lower dies 103 mounted on the turntable 102 and can rotate with the turntable 102, and the plurality of lower dies 103 are evenly distributed around the rotation center axis of the turntable 102; the upper die assembly includes a die head 104 spaced opposite to the turntable 102 and a die driving mechanism transmission-connected to the die head 104, the die head 104 can be opposite to the front faces of the plurality of lower dies 103 in sequence during the rotation of the turntable 102, the die driving mechanism is used to drive the die head 104 to approach or move away from the lower die 103, and the moving direction of the die head 104 is parallel to the axial direction of the turntable 102.

[0037] In the metal insert hexagonal flange face locking nut press-fitting device provided in this embodiment, a turntable 102 and a plurality of lower dies 103 distributed on the turntable 102 around the central axis of the turntable 102 are provided. As the turntable 102 continues to rotate, when the metal insert 201 and the hexagonal flange face locking nut 202 placed on one of the lower dies 103 are in the press-fitting process, the metal insert 201 and the hexagonal flange face locking nut 202 in the remaining lower dies 103 can be placed and taken out, which can effectively shorten the time for the metal insert 201 to be pressed onto the hexagonal flange face locking nut 202, thereby significantly improving the press-fitting efficiency of the metal insert hexagonal flange face locking nut press-fitting device in this application, which is far superior to the prior art. In addition, the separation of the riveting work area from the placing and taking out area also has better safety.

[0038] In another embodiment of the present application, please refer to Figures 1 to 6 The turntable 102 is provided with a plurality of through holes 105 parallel to the axial direction of the turntable 102 and for the lower die 103 to pass through. The lower die assembly also includes a pad 106 disposed between the turntable 102 and the frame platen and a first spring 107 connected between the turntable 102 and the lower die 103. The deformation direction of the first spring 107 is parallel to the axial direction of the turntable 102. The pad 106 is used to be spaced and opposite to the lower die 103 when the die head 104 does not squeeze the lower die 103, and is also used to support the lower die 103 passing through the through holes 105 in the process of the die head 104 squeezing the lower die 103 and overcoming the elastic force of the first spring 107.

[0039] According to the above structure provided in this embodiment, when the punch head 104 punches the metal insert 201 and the hexagonal flange locking nut 202 in the lower die 103, it can drive the lower die 103 to overcome the elastic force of the first spring 107 and pass through the through hole 105 to abut against the cushion block 106, and the pressure from the punch head 104 can be offset by the cushion block 106 and does not act on the turntable 102, so that the turntable 102 provided in this embodiment can be used stably for a longer time and further improve the press-fitting efficiency of the metal insert hexagonal flange locking nut press-fitting device in this embodiment. In addition, when the punch head 104 and the lower die 103 are separated, the lower die 103 can be reset in the reverse direction under the action of the first spring 107, which is conducive to avoiding the interference between the lower end of the lower die 103 and the cushion block 106 and allowing the turntable 102 to rotate more smoothly.

[0040] In another embodiment of the present application, please refer to Figures 1 to 6 The lower die assembly further includes a lower die seat 108 connected to the turntable 102, the lower die seat 108 forms a sliding cavity 109 for accommodating the lower die 103, the lower die 103 is slidably connected to the lower die seat 108 through the inner wall of the sliding cavity 109, and the sliding direction of the lower die 103 relative to the lower die seat 108 is parallel to the moving direction of the lower die 103 passing through the through hole 105. According to the above structure provided in this embodiment, the lower die seat 108 slidably connected to the lower die 103 can provide a stable sliding guide for the movement of the lower die 103 relative to the through hole 105, so that the lower die 103 can move more stably and quickly, which is conducive to further improving the press-fitting efficiency of the metal insert hexagonal flange face locking nut press-fitting device in this embodiment.

[0041] In another embodiment of the present application, please refer to Figures 1 to 6 The die driving mechanism includes a support 110 connected to the frame plate 101 and a hydraulic cylinder 111 installed on the support 110. The die head 104 is connected to the output end of the hydraulic cylinder 111, and the output direction of the hydraulic cylinder 111 is parallel to the sliding direction of the lower die 103 relative to the lower die seat 108. According to the above structure provided in this embodiment, the hydraulic cylinder 111 can well ensure that the moving direction of the die head 104 is parallel to the sliding direction of the lower die 103 relative to the lower die seat 108, which can further improve the press-fitting efficiency of the metal insert hexagonal flange face locking nut press-fitting device in this embodiment.

[0042] In another embodiment of the present application, please refer to Figures 1 to 6The rotating disk 102 is connected to a driving mechanism for driving the rotating disk 102. The driving mechanism includes a servo motor 113 mounted on the frame through a motor seat 112 and a first spline shaft 115 connected to the output end of the servo motor 113 through a coupling 114, and also includes a spline sleeve 116 sleeved on the first spline shaft 115, a second spline shaft 117 movably mounted inside the spline sleeve 116 and capable of moving relative to the spline sleeve 116 along the axial direction of the spline sleeve 116, and a second spring 118 sleeved on the second spline shaft 117; one end of the second spline shaft 117 away from the first spline shaft 115 is connected to the rotating disk 102 and can drive the rotating disk 102 to rotate, and the two ends of the second spring 118 are respectively connected to the spline sleeve 116 and the rotating disk 102, and the deformation direction of the second spring 118 is parallel to the sliding direction of the second spline shaft 117 relative to the spline sleeve 116.

[0043] According to the above structure provided in this embodiment, the first spline shaft 115 connected to the output end of the servo motor 113 can drive the second spline shaft 117 to rotate through the spline sleeve 116. Since the second spline shaft 117 connected to the turntable 102 can move relative to the spline sleeve 116 along the axial direction of the spline sleeve 116 and a second spring 118 with a deformation direction parallel to the axial direction of the spline sleeve 116 is arranged between the spline sleeve 116 and the turntable 102. In this way, when the movement of the lower die 103 relative to the turntable 102 fails and the lower die 103 is stuck relative to the turntable 102, the impact force from the die head 104 can overcome the elastic force of the second spring 118, so that the second spline shaft 117 and the turntable 102 connected to the second spline shaft 117 can move axially along the spline sleeve 116, which can offset a part of the impact force of the die head 104 acting on the turntable 102, so that the turntable 102 provided in this embodiment can be used stably for a longer period of time and further improve the pressing efficiency of the metal insert hexagonal flange surface locking nut pressing device in this embodiment.

[0044] In another embodiment of the present application, please refer to Figures 1 to 6 , a flange portion 119 is formed at one end of the spline sleeve 116 facing the rotating disk 102, and the second spring 118 abuts between the flange portion 119 and the rotating disk 102. According to the above structure provided in this embodiment, the flange portion 119 formed on the spline sleeve 116 can significantly increase the contact area between the second spring 118 and the spline sleeve 116, which is conducive to the stable use of the rotating disk 102 for a longer period of time and is conducive to further improving the press-fitting efficiency of the metal insert hexagonal flange surface locking nut press-fitting device in this embodiment.

[0045] In another embodiment of the present application, please refer to Figures 1 to 6, the length of the second spline shaft 117 along its own axial direction is greater than the length of the first spline shaft 115 along its own axial direction. According to the above structure provided in this embodiment, the longer second spline shaft 117 is not only conducive to the installation of the rotating disk 102, but also conducive to more stable movement relative to the spline sleeve 116, while the shorter first spline shaft 115 can be used to stably drive the spline sleeve 116, the second spline shaft 117 and the rotating disk 102 to rotate, which is conducive to the stable use of the rotating disk 102 for a longer time and is conducive to further improving the press-fitting efficiency of the metal insert hexagonal flange face locking nut press-fitting device in this embodiment.

[0046] In another embodiment of the present application, please refer to Figures 1 to 6 The frame plate 101 is connected with a bearing seat 120, and a radial thrust bearing 121 is installed on the bearing seat 120. The radial thrust bearing 121 is sleeved on the outside of the spline sleeve 116 and is used to support the spline sleeve 116 to rotate relative to the frame plate 101. According to the above structure provided in this embodiment, the radial thrust bearing 121 used to support the spline sleeve 116 can make the spline sleeve 116 rotate more stably relative to the frame plate 101, which is conducive to the stable use of the turntable 102 for a longer time and is conducive to further improving the press-fitting efficiency of the metal insert hexagonal flange surface locking nut press-fitting device in this embodiment.

[0047] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A metal insert hexagonal flange locking nut press-fitting device, characterized in that: include: Rack table (101); A turntable (102) is rotatably mounted on the frame plate (101) and is capable of rotating around its own central axis; A lower mold assembly, comprising a plurality of lower molds (103) mounted on the rotating disk (102) and capable of rotating along with the rotating disk (102), wherein the plurality of lower molds (103) are evenly distributed around a rotation center axis of the rotating disk (102); An upper die assembly, comprising a die head (104) spaced opposite to the rotating disk (102) and a die driving mechanism drivingly connected to the die head (104), wherein the die head (104) can sequentially face the front faces of a plurality of lower dies (103) during the rotation of the rotating disk (102), and the die driving mechanism is used to drive the die head (104) to approach or move away from the lower dies (103), and the moving direction of the die head (104) is parallel to the axial direction of the rotating disk (102); The turntable (102) is provided with a plurality of through holes (105) parallel to the axial direction of the turntable (102) and for the lower die (103) to pass through, and the lower die assembly further comprises a cushion block (106) arranged between the turntable (102) and the frame platen, and a first spring (107) connected between the turntable (102) and the lower die (103); The deformation direction of the first spring (107) is parallel to the axial direction of the rotating disk (102); the cushion block (106) is used to be spaced apart from the lower die (103) when the punch head (104) does not squeeze the lower die (103); and is also used to support the lower die (103) passing through the through hole (105) when the punch head (104) squeezes the lower die (103) and overcomes the elastic force of the first spring (107); The rotating disk (102) is transmission-connected to a driving mechanism for driving the rotating disk (102); The driving mechanism comprises a servo motor (113) mounted on the frame via a motor seat (112), and a first spline shaft (115) connected to the output end of the servo motor (113) via a coupling (114), and further comprises a spline sleeve (116) sleeved on the first spline shaft (115), a second spline shaft (117) movably mounted inside the spline sleeve (116) and capable of moving relative to the spline sleeve (116) along the axial direction of the spline sleeve (116), and a second spring (118) sleeved on the second spline shaft (117); One end of the second spline shaft (117) away from the first spline shaft (115) is connected to the turntable (102) and is capable of driving the turntable (102) to rotate; two ends of the second spring (118) are respectively connected to the spline sleeve (116) and the turntable (102); and a deformation direction of the second spring (118) is parallel to a sliding direction of the second spline shaft (117) relative to the spline sleeve (116).

2. The metal insert hexagonal flange locking nut press-fitting device according to claim 1, characterized in that: The lower die assembly further comprises a lower die seat (108) connected to the turntable (102); The lower die base (108) forms a sliding cavity (109) for accommodating the lower die (103); the lower die (103) is slidably connected to the lower die base (108) via the inner wall of the sliding cavity (109); and the sliding direction of the lower die (103) relative to the lower die base (108) is parallel to the moving direction of the lower die (103) passing through the through hole (105).

3. The metal insert hexagonal flange locking nut press-fitting device according to claim 2, characterized in that: The punch die driving mechanism comprises a support (110) connected to the frame platen (101) and a hydraulic cylinder (111) mounted on the support (110); The punch head (104) is connected to the output end of the hydraulic cylinder (111), and the output direction of the hydraulic cylinder (111) is parallel to the sliding direction of the lower die (103) relative to the lower die base (108).

4. The metal insert hexagonal flange locking nut press-fitting device according to claim 1, characterized in that: A flange portion (119) is formed at one end of the spline sleeve (116) facing the rotating disk (102), and the second spring (118) abuts between the flange portion (119) and the rotating disk (102).

5. The metal insert hexagonal flange locking nut press-fitting device according to claim 1, characterized in that: The length of the second spline shaft (117) along its own axial direction is greater than the length of the first spline shaft (115) along its own axial direction.

6. The metal insert hexagonal flange locking nut press-fitting device according to claim 1, characterized in that: A bearing seat (120) is connected to the frame plate (101), and a radial thrust bearing (121) is installed on the bearing seat (120); The radial thrust bearing (121) is sleeved on the outside of the spline sleeve (116) and is used to support the spline sleeve (116) to rotate relative to the frame plate (101).

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