Connector housing roll press tool

Abstract

This application provides a connector housing roll forming fixture, belonging to the technical field of connector housing roll forming equipment. Specifically, a three-jaw chuck on a lathe is used to clamp a first positioning seat, then the connector housing is placed on the first positioning seat, and a second positioning seat is placed on top of the connector housing. The second positioning seat is then fixed using a center on the lathe in conjunction with a tapered groove. Finally, the three-jaw chuck on the lathe is rotated, thereby causing the connector to rotate. At the same time, the roll forming tool assembly moves to apply a certain pressure to the surface of the housing, causing it to undergo metal plastic deformation, thus realizing the roll forming process. The portion of the second sleeve located inside the second end includes an annular support portion and an annular shaping portion. The support portion abuts against the side wall of the second end, and the outer peripheral side of the shaping portion gradually tapers from the end face of the second end to the side of the designed annular platform. The end face of the shaping portion abuts against the designed annular platform. The design of the support portion and the shaping portion of the second sleeve ensures the shape of the roll forming and improves the quality of the housing roll forming.

Description

Technical Field

[0001] This application relates to the field of connector housing rolling equipment, and more particularly to a connector housing rolling fixture. Background Technology

[0002] Roll forming is a process that utilizes the cold plasticity of metals at room temperature. A lathe is used to rotate the workpiece while a rolling fixture applies pressure to its surface, causing plastic deformation and allowing for the rolling of various workpieces. Currently, the rolling fixture structure consists of a rotating shaft passing through a roller with an interference fit. The shaft and roller frame are fixed by a snap ring. However, this structure is unstable. The roller experiences high frictional resistance during rolling, and with wear and tear, it wobbles during the actual rolling process, producing multiple rolling marks. Furthermore, the coaxiality between the fixture and the workpiece cannot be guaranteed, resulting in uneven rolling depth and shape, negatively impacting product quality. Summary of the Invention

[0003] In view of this, this application provides a connector housing rolling tool, which solves the problems in the prior art and improves the rolling quality of connector housings.

[0004] The connector housing rolling tooling provided in this application adopts the following technical solution:

[0005] A connector housing rolling fixture is provided. The connector includes a plug and a housing sleeved around the plug. The housing has a first end and a second end, respectively. The rolling position of the housing is located on the end side wall of the second end of the housing. A gap is provided between the end side wall of the housing at the rolling position and the plug. The connector housing rolling fixture includes:

[0006] A positioning assembly includes a first positioning seat and a second positioning seat. The first positioning seat includes a first fixed shaft and a first sleeve that are fixedly connected and coaxial. The first fixed shaft is used to connect with the rotary output shaft of a lathe via a clamping assembly. The first sleeve is used to fit around the outer periphery of a first end, and a positioning platform that abuts against the end face of the first end is provided inside the first sleeve. The second positioning seat includes a second fixed shaft and a second sleeve that are fixedly connected and coaxial. The end of the second fixed shaft facing away from the second sleeve has a tapered groove for engaging with the center of the lathe. The end face of the second sleeve facing away from the second fixed shaft is located between the side wall of the second end and the plug, and the end face of the second sleeve abuts against a design ring platform inside the housing. The portion of the second sleeve inside the second end includes an annular support portion and an annular shaping portion. The support portion is closer to the end face of the second end than the shaping portion. The support portion abuts against the side wall of the second end. The outer peripheral side of the shaping portion gradually tapers from the end face of the second end towards the design ring platform.

[0007] A rolling cutter assembly includes a bracket and a roller mounted on the bracket. The outer peripheral side of the roller abuts against the outer wall of the housing at the rolling position on the second end. The bracket is used to connect a force-applying component, which applies a force to the roller near the axis of the housing.

[0008] Optionally, the end face of the first end includes an annular inclined surface and an annular protrusion. The annular protrusion is located in the inner circle of the annular inclined surface. The inner wall of the first sleeve is provided with an annular flange that protrudes radially inward. The annular flange serves as the positioning platform. The annular flange surrounds the outer periphery of the annular protrusion. The side of the annular flange facing away from the first fixed shaft is an inclined surface, and the inclined surface gradually slopes towards the first fixed shaft from the outside to the inside. The inclined surface matches the annular inclined surface on the end face of the first end.

[0009] Optionally, the rolling cutter assembly further includes a rotating shaft and a bearing. The rotating shaft passes through the roller and is fixedly connected to the roller. Both ends of the rotating shaft are connected to the bracket via bearings. The inner ring of the bearing is fixedly connected to the rotating shaft, and the bearing is mounted on the bracket.

[0010] Optionally, a first annular boss is provided on both ends of the roller, and the first annular boss abuts against the inner ring of the bearing;

[0011] The bracket has a through hole for accommodating the bearing, and the bearing and the through hole are fitted together. The rolling cutter assembly also includes an end cap, and each bearing is provided with an end cap. The end cap covers the opposite end faces of the two bearings and is fixed to the bracket with screws. The end faces of the outer rings of the two bearings are provided with annular grooves. The end cap is provided with a second annular boss that mates with the annular groove. When the end cap is fixed to the bracket, the second annular boss presses against the bottom of the annular groove and presses the inner ring of the bearing against the first annular boss.

[0012] Optionally, the rotating shaft is provided with a stepped surface that abuts against the opposite end faces of the two bearings, and the stepped surface abuts against the inner ring end face of the bearing.

[0013] Optionally, the surfaces of the positioning assembly and the rolling cutter assembly are provided with a chrome plating layer.

[0014] Optionally, when the positioning component and the housing are engaged, the axes of the first fixed shaft, the first sleeve, the second fixed shaft and the second sleeve are parallel to the vertical direction, and the first positioning seat is located below the second positioning seat.

[0015] In summary, this application includes the following beneficial technical effects:

[0016] The design of the second sleeve support and shaping part ensures the shape of the roll forming and improves the quality of the shell roll forming.

[0017] The inclined surface inside the first sleeve matches the annular inclined surface on the end face of the first end. The inclined surface inside the first sleeve contacts the inclined surface at the bottom of the housing, which serves to guide and position the housing and ensure that the inclined surface is coaxial with the housing. This ensures that when the moving rolling cutter assembly applies pressure to the surface of the housing, the housing produces a uniform circumferential rolling depth, thereby improving the quality of the housing rolling process.

[0018] The engagement of the first annular boss on the roller and the second annular boss on the end cap not only supports the bearing but also prevents the bearing, roller, and shaft from moving axially. This serves to fix the shaft and roller, ensuring the stable rotation and trajectory of the roller and improving the quality of the housing roll forming. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the connector housing rolling tooling of this application;

[0021] Figure 2 This is a schematic diagram of the structure of the first positioning seat in this application;

[0022] Figure 3 This is a schematic diagram of the structure of the second positioning seat in this application;

[0023] Figure 4 This is a schematic diagram of the overall structure of the roller burnishing tool assembly of this application;

[0024] Figure 5 This is a schematic diagram of the structure of each component of the rolling cutter assembly of this application.

[0025] Explanation of reference numerals in the attached drawings: 1. Housing; 11. First end; 12. Second end; 13. Annular inclined surface; 14. Annular protrusion; 15. Design ring platform; 2. Center point; 3. Three-jaw chuck; 4. First positioning seat; 41. First fixed shaft; 42. First sleeve; 43. Annular flange; 5. Second positioning seat; 51. Second fixed shaft; 511. Conical groove; 52. Second sleeve; 53. Support part; 54. Shaping part; 6. Roller assembly; 61. Roller; 611. First annular boss; 62. Bracket; 63. Bearing; 631. Annular groove; 64. Rotating shaft; 641. Stepped surface; 65. End cap; 651. Second annular boss; 66. Screw. Detailed Implementation

[0026] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0027] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0028] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0029] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The illustrations only show the components related to this application and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0030] Furthermore, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that the described aspects can be practiced without these specific details.

[0031] This application provides a connector housing rolling tool.

[0032] like Figures 1-4As shown, a connector housing rolling fixture is provided. The connector includes a plug and a housing 1 sleeved on the outer periphery of the plug. The two ends of the housing 1 are a first end 11 and a second end 12, respectively. The rolling position of the housing 1 is located on the end side wall of the second end 12 of the housing 1. A gap is provided between the side wall of the housing 1 at the rolling position and the plug.

[0033] The connector housing roll forming tooling includes:

[0034] The positioning assembly includes a first positioning seat 4 and a second positioning seat 5. The first positioning seat 4 includes a first fixed shaft 41 and a first sleeve 42 that are fixedly connected and coaxial. The first fixed shaft 41 is used to connect to the rotary output shaft of the lathe via a clamping assembly, which can be a three-jaw chuck 3. The first sleeve 42 is used to fit around the outer periphery of the first end 11, and the first sleeve 42 has a positioning platform that abuts against the end face of the first end 11. The second positioning seat 5 includes a second fixed shaft 51 and a second sleeve 52 that are fixedly connected and coaxial. The end of the second fixed shaft 51 facing away from the second sleeve 52 has a tapered section for engaging with the center point 2 of the lathe. The second sleeve 52 has a groove 511. The end face of the second sleeve 52 facing away from the second fixed shaft 51 is located between the side wall of the second end 12 and the plug. The end face of the second sleeve 52 away from the second fixed shaft 51 abuts against the design ring platform 15 inside the housing 1. The portion of the second sleeve 52 located inside the second end 12 includes an annular support portion 53 and an annular shaping portion 54. The support portion 53 is closer to the end face of the second end 12 than the shaping portion 54. The support portion 53 abuts against the side wall of the second end 12. The outer peripheral side of the shaping portion 54 gradually decreases from the end face of the second end 12 to the side of the design ring platform 15. The end face of the shaping portion 54 abuts against the design ring platform 15.

[0035] The rolling cutter assembly 6 includes a bracket 62 and a roller 61 mounted on the bracket 62. The outer peripheral side of the roller 61 abuts against the outer wall of the housing 1 at the rolling position on the second end 12. The bracket 62 is used to connect a force-applying component, which is used to apply a force to the roller 61 near the axis of the housing 1. The force-applying component can be a hydraulic cylinder or a pneumatic cylinder.

[0036] When the positioning component and the housing 1 are engaged, the axes of the first fixed shaft 41, the first sleeve 42, the second fixed shaft 51 and the second sleeve 52 are parallel to the vertical direction, and the first positioning seat 4 is located below the second positioning seat 5.

[0037] First, the first positioning seat 4 is clamped by the three-jaw chuck 3 on the lathe. Then, the connector housing 1 is placed on the first positioning seat 4. The outer peripheral side wall of the first end 11 of the housing 1 abuts against the inner wall of the first sleeve 42. The second positioning seat 5 is placed above the connector housing 1. Then, the second positioning seat 5 is fixed by the center 2 of the lathe in conjunction with the conical groove 511. Finally, the three-jaw chuck 3 on the lathe is rotated, thereby driving the connector to rotate. At the same time, the rolling cutter assembly 6 is moved to apply a certain pressure to the surface of the housing 1, so as to produce metal plastic deformation and realize the rolling process. The design of the support part 53 and the shaping part 54 of the second sleeve 52 ensures the shape of the rolling and improves the quality of the rolling of the housing 1.

[0038] The end face of the first end 11 includes an annular inclined surface 13 and an annular protrusion 14. The annular protrusion 14 is located in the inner circle of the annular inclined surface 13. The inner wall of the first sleeve 42 is provided with an annular flange 43 that protrudes radially inward. The annular flange 43 serves as the positioning platform and surrounds the outer periphery of the annular protrusion 14. The side of the annular flange 43 facing away from the first fixed shaft 41 is an inclined surface, and the inclined surface gradually slopes towards the first fixed shaft 41 from the outside in. The inclined surface matches the annular inclined surface 13 on the end face of the first end 11. The inclined surface inside the first sleeve 42 contacts the inclined surface at the bottom of the housing 1, which guides and positions the housing 1 and ensures that the inclined surface is coaxial with the housing 1. This ensures that when the moving rolling cutter assembly 6 applies pressure to the surface of the housing 1, the housing 1 produces a uniform circumferential rolling depth.

[0039] like Figure 5 As shown, the rolling cutter assembly 6 also includes a rotating shaft 64 and a bearing 63. The rotating shaft 64 passes through the roller 61 and is fixedly connected to the roller 61. Both ends of the rotating shaft 64 are connected to the bracket 62 through the bearing 63. The inner ring of the bearing 63 is fixedly connected to the rotating shaft 64, and the bearing 63 is mounted on the bracket 62.

[0040] The roller 61 has a first annular boss 611 on both ends, and the first annular boss 611 abuts against the inner ring of the bearing 63. The bracket 62 has a through hole for accommodating the bearing 63, and the bearing 63 and the through hole are fitted together. The rolling cutter assembly 6 also includes an end cap 65, and each bearing 63 is provided with an end cap 65. The end cap 65 covers the opposite end faces of the two bearings 63 and is fixed to the bracket 62 by screws 66. The outer rings of the two bearings 63 have an annular groove 631 on their end faces. The end cap 65 has a second annular boss 651 that mates with the annular groove 631. When the end cap 65 is fixed to the bracket 62, the second annular boss 651 presses against the bottom of the annular groove 631, and the second annular boss 651 presses the inner ring of the bearing 63 against the first annular boss 611. The rotating shaft 64 is interference-fitted with the inner ring of the bearing 63 and the roller 61 to ensure that the shaft 64 and the roller 61 are relatively stationary. At the same time, the second annular boss 651 avoids contact with the rotating shaft 64 and the inner ring of the bearing 63. The fit between the first annular boss 611 on the roller 61 and the second annular boss 651 on the end cover 65 not only supports the bearing 63, but also prevents the bearing 63, roller 61 and rotating shaft 64 from moving axially, thus fixing the rotating shaft 64 and roller 61 and ensuring the stable rotation and rotation trajectory of the roller 61.

[0041] The rotating shaft 64 is provided with a stepped surface 641 that abuts against the end faces of the two bearings 63. The stepped surface 641 abuts against the inner ring end face of the bearing 63 and is used to position the bearing 63 during the process of installing the bearing 63 on the rotating shaft 64.

[0042] Both the positioning component and the roller burnishing tool assembly 6 have a chrome-plated surface. All parts of the positioning component and the roller burnishing tool assembly 6 undergo chrome plating to enhance their corrosion resistance. Furthermore, all parts of the roller burnishing tool assembly 6 are made of Q235 steel, a material with good plasticity and toughness. Additionally, the roller 61 and the shaft 64, which are prone to wear, undergo heat treatment to ensure a hardness within the HRC55-60 range, enhancing their durability.

[0043] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A connector housing rolling fixture, the connector comprising a plug and a housing (1) sleeved on the outer periphery of the plug, the housing (1) having a first end (11) and a second end (12) at its two ends, the rolling position of the housing (1) being located on the end side wall of the second end (12) of the housing (1), a gap being provided between the side wall of the housing (1) at the rolling position and the plug, characterized in that, The connector housing roll forming tooling includes: The positioning assembly includes a first positioning seat (4) and a second positioning seat (5). The first positioning seat (4) includes a first fixed shaft (41) and a first sleeve (42) that are fixedly connected and coaxial. The first fixed shaft (41) is used to connect with the rotary output shaft of the lathe via a clamping assembly. The first sleeve (42) is used to be sleeved on the outer periphery of the first end (11), and the first sleeve (42) is provided with a positioning platform that abuts against the end face of the first end (11). The second positioning seat (5) includes a second fixed shaft (51) and a second sleeve (52) that are fixedly connected and coaxial. The end of the second fixed shaft (51) facing away from the second sleeve (52) is provided with a center (2) of the lathe for connecting with the center (2) of the lathe. The conical groove (511) is matched with the second sleeve (52). The end face of the second sleeve (52) facing away from the second fixed shaft (51) is located between the side wall of the second end (12) and the plug. The end face of the second sleeve (52) abuts against the design ring platform (15) inside the housing (1). The part of the second sleeve (52) located inside the second end (12) includes an annular support part (53) and an annular shaping part (54). The support part (53) is closer to the end face of the second end (12) than the shaping part (54). The support part (53) abuts against the side wall of the second end (12). The outer peripheral side of the shaping part (54) gradually decreases from the end face of the second end (12) to the side of the design ring platform (15). The rolling cutter assembly (6) includes a bracket (62) and a roller (61) mounted on the bracket (62). The outer peripheral side of the roller (61) abuts against the outer wall of the housing (1) at the rolling position on the second end (12). The bracket (62) is used to connect a force-applying component, which is used to apply a force to the roller (61) near the axis of the housing (1).

2. The connector housing rolling fixture according to claim 1, characterized in that, The end face of the first end (11) includes an annular inclined surface (13) and an annular protrusion (14). The annular protrusion (14) is located in the inner circle of the annular inclined surface (13). The inner wall of the first sleeve (42) is provided with an annular flange (43) that protrudes radially inward. The annular flange (43) serves as the positioning platform. The annular flange (43) surrounds the outer periphery of the annular protrusion (14). The side of the annular flange (43) facing away from the first fixed shaft (41) is an inclined surface. The inclined surface gradually tilts towards the side of the first fixed shaft (41) from the outside to the inside. The inclined surface matches the annular inclined surface (13) on the end face of the first end (11).

3. The connector housing rolling fixture according to claim 1, characterized in that, The rolling cutter assembly (6) further includes a rotating shaft (64) and a bearing (63). The rotating shaft (64) passes through the roller (61), and the rotating shaft (64) and the roller (61) are fixedly connected. The two ends of the rotating shaft (64) are connected to the bracket (62) through the bearing (63). The inner ring of the bearing (63) is fixedly connected to the rotating shaft (64), and the bearing (63) is mounted on the bracket (62).

4. The connector housing rolling fixture according to claim 3, characterized in that, The roller (61) has a first annular boss (611) on both ends, and the first annular boss (611) abuts against the inner ring of the bearing (63); The bracket (62) is provided with a through hole for accommodating the bearing (63). The bearing (63) and the through hole are fitted together. The rolling cutter assembly (6) also includes an end cap (65). Each bearing (63) is provided with an end cap (65). The end cap (65) covers the opposite end faces of the two bearings (63). The end cap (65) is fixed to the bracket (62) by screws (66). The end faces of the outer rings of the two bearings (63) are provided with an annular groove (631). The end cap (65) is provided with a second annular boss (651) that mates with the annular groove (631). When the end cap (65) is fixed to the bracket (62), the second annular boss (651) presses against the bottom of the annular groove (631), and the second annular boss (651) presses the inner ring of the bearing (63) against the first annular boss (611).

5. The connector housing rolling fixture according to claim 3, characterized in that, The rotating shaft (64) is provided with a stepped surface (641) that abuts against the end faces of the two bearings (63), and the stepped surface (641) abuts against the inner ring end face of the bearing (63).

6. The connector housing rolling fixture according to claim 1, characterized in that, The surfaces of the positioning component and the rolling cutter component are coated with a chrome layer.

7. The connector housing rolling tooling according to claim 1, characterized in that, When the positioning component and the housing (1) are engaged, the axes of the first fixed shaft (41), the first sleeve (42), the second fixed shaft (51) and the second sleeve (52) are parallel to the vertical direction, and the first positioning seat (4) is located below the second positioning seat (5).

Images