Hot riveting fixture and wire preparation device

Abstract

This invention relates to the field of machining fixture technology, specifically to a hot riveting fixture and a wire preparation apparatus. The wire preparation apparatus includes a hot riveting fixture comprising two heatable fixtures capable of clamping a part to be processed. At least one heatable fixture includes a fixture body and a protrusion connected to the fixture body, and the protrusion is used to heat-press a groove onto the exterior of the part to be processed. The hot riveting fixture of this invention can heat-press grooves onto the part to be processed that can mate with the injection-molded structure, and eliminates the need for cyclohexanone, thus improving safety.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of processing jigs, in particular to a hot riveting jig and a wire preparation device. BACKGROUND

[0002] In related technologies, when some parts are prepared, an external injection of an outer layer structure having a protection function is usually required, for example, when a wire is prepared, a wire sheath is usually injected outside the sheath of the wire; the related technology usually needs to use cyclohexanone to corrode and melt the part to be injected, so that the injected structure can be reliably bonded with the corroded and melted surface.

[0003] However, cyclohexanone has slight toxicity and is a carcinogenic substance, which is not conducive to the safety of personnel. SUMMARY

[0004] The purpose of the present application is to provide a hot riveting jig and a wire preparation device, the hot riveting jig can hot press a groove on the part to be processed which can cooperate with the injected structure, and does not need to use cyclohexanone, which is conducive to improving safety.

[0005] Embodiments of the present application are implemented as follows:

[0006] In a first aspect, the present application provides a hot riveting jig, comprising:

[0007] Two heatable jigs, the two heatable jigs can clamp the part to be processed; wherein at least one heatable jig comprises a jig body and a protrusion, the protrusion is connected with the jig body, and the protrusion is used to hot press a groove on the outside of the part to be processed.

[0008] In an optional embodiment, each heatable jig comprises a jig body and a protrusion connected with the jig body; the two heatable jigs are used together to hot press grooves on opposite sides of the part to be processed.

[0009] In an optional embodiment, the jig body is provided with a relief groove, and the protrusion is located in the relief groove.

[0010] In an optional embodiment, the relief groove is a circular arc groove, the heatable jig comprises at least two protrusions, and the at least two protrusions are distributed along the circumferential direction of the circular arc groove.

[0011] In an optional embodiment, the relief groove is a circular arc groove, the heatable jig comprises at least two protrusions, and the at least two protrusions are distributed along the extension direction of the central axis of the circular arc groove.

[0012] In an optional embodiment, one end of the protrusion which is not connected with the jig body is provided with an inclined surface, and the distance between the inclined surfaces of the two protrusions distributed along the circumferential direction of the circular arc groove gradually increases from one end close to the jig body to one end away from the jig body.

[0013] In an optional embodiment, the fixture body includes a main body and three riveting parts. All three riveting parts are connected to the main body and each of the three riveting parts has a relief groove and a protrusion connected to the main body. The three riveting parts are arranged sequentially at intervals along the extension direction of the central axis of the relief groove, and the relief grooves of the three riveting parts are relatively distributed.

[0014] In an optional implementation, the height of the protrusion is at least 0.3mm-1mm.

[0015] In an optional embodiment, the raised surface is electroplated with chromium.

[0016] In an optional embodiment, the heatable fixture further includes an electric heating element disposed on the fixture body for heating the protrusion.

[0017] In an optional implementation, the electric heating element is a heating resistor.

[0018] Secondly, the present invention provides a wire preparation apparatus, including a hot riveting fixture according to any of the foregoing embodiments.

[0019] In an optional embodiment, the wire preparation apparatus further includes a drive assembly that is driven to at least one of two heatable fixtures for bringing the two heatable fixtures closer to or further apart from each other.

[0020] The beneficial effects of the hot riveting fixture of this invention include: the hot riveting fixture provided by this invention includes two heatable fixtures, which can clamp the part to be processed; wherein, at least one heatable fixture includes a fixture body and a protrusion, the protrusion being connected to the fixture body, and the protrusion being used to heat-press a groove on the outside of the part to be processed. In this way, the part to be processed can be clamped by two heatable fixtures, and at least one of them can heat-press a groove on the surface of the part to be processed. The heat-pressed groove can ensure the structural reliability of the injection-molded part. Since the use of cyclohexanone is not required, it is beneficial to improve safety; moreover, it is convenient to operate and highly efficient.

[0021] The beneficial effects of the wire preparation apparatus of the present invention include: the wire preparation apparatus provided by the present invention includes the aforementioned hot riveting fixture, which can use two heatable fixtures to clamp the wire to be processed, and at least one of them can be used to heat-press a groove on the surface of the wire. The heat-pressed groove can ensure the reliability of the structure of the injection-molded part. Since there is no need to use cyclohexanone, it is beneficial to improve safety; moreover, it is convenient to operate and highly efficient. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is an exploded structural diagram of the hot riveting fixture and the wire in an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of the hot riveting fixture and the wire in an embodiment of the present invention;

[0025] Figure 3 for Figure 2 A cross-sectional view along the AA direction;

[0026] Figure 4 This is a schematic diagram of the structure of the heatable fixture in an embodiment of the present invention from a first perspective;

[0027] Figure 5 This is a schematic diagram of the structure of the heatable fixture in an embodiment of the present invention from a second perspective;

[0028] Figure 6 This is a cross-sectional view of the wire in an embodiment of the present invention.

[0029] Icons: 010-Hot riveting fixture; 100-Heatable fixture; 110-Jig body; 111-Allowing groove; 112-Body part; 113-Riveting part; 114-Gap; 120-Protrusion; 121-Bevel; 200-Wire; 210-Sheath; 211-Groove; 220-Wire sheath. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0032] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0033] In the description of this invention, it should be noted that the terms "inner" and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed when in use. They are only used to facilitate the description of this invention and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0034] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] This embodiment provides a wire preparation device, which can be used to set grooves on the outer sheath of the wire during wire preparation, so that the injection molding material can flow into the grooves during wire injection molding of the wire sheath, ensuring a reliable fit between the injection molded wire sheath and the wire sheath.

[0036] Please refer to Figures 1-3 The wire preparation apparatus includes a hot riveting fixture 010, which comprises two heatable fixtures 100 capable of clamping the part to be processed. At least one heatable fixture 100 includes a fixture body 110 and a protrusion 120 connected to the fixture body 110, and the protrusion 120 is used to heat-press a groove onto the exterior of the part to be processed. In this way, the part to be processed can be clamped using two heatable fixtures 100, and at least one of them can heat-press a groove onto the surface of the part. The heat-pressed groove ensures the structural integrity of the injection-molded part, and since cyclohexanone is not required, safety is improved.

[0037] It should be noted that the hot riveting fixture 010 in this embodiment is used to heat-form a groove on the surface of the conductor, specifically, it can heat-form a groove on the surface of the conductor's sheath.

[0038] Please refer to Figure 4 and Figure 5In this embodiment, each heatable fixture 100 includes a fixture body 110 and a protrusion 120 connected to the fixture body 110; the two heatable fixtures 100 are used together to heat-press grooves on both opposite sides of the part to be processed. In this way, when it is necessary to set grooves on both opposite sides of the part, not only is the ease of operation ensured, but the processing efficiency is also effectively improved.

[0039] It should be understood that in other embodiments, only one heatable fixture 100 may include a fixture body 110 and a protrusion 120 connected to the fixture body 110, while the other heatable fixture 100 may not have a protrusion 120. In this embodiment, the two heatable fixtures 100 can heat-press a groove on one side of the part to be processed. If it is necessary to heat-press a groove on both sides of the part, a groove can be heat-pressed on one side first, and then the part can be rotated to heat-press a groove on the other side as well.

[0040] Please continue to refer to Figure 4 and Figure 5 In this embodiment, the fixture body 110 is provided with a relief groove 111, and the protrusion 120 is located within the relief groove 111. Since the hot riveting fixture 010 of this embodiment is used to heat-press grooves on the outside of the wire sheath, placing the protrusion 120 within the relief groove 111 helps to prevent other parts of the heatable fixture 100, except for the protrusion 120, from contacting the wire, thereby ensuring that the grooves are reliably heat-pressed on the wire sheath without easily burning other parts that do not need to be heat-pressed. Moreover, by placing the protrusion 120 within the relief groove 111, the protrusion 120 does not protrude or only protrudes partially relative to the fixture body 110, thereby enabling the fixture body 110 to protect the protrusion 120 and improving the problem that the protrusion 120 is easily bumped or damaged.

[0041] It should be understood that in other embodiments, the fixture body 110 may not have the clearance groove 111, and the protrusion 120 protrudes relative to the fixture body 110 so that when the protrusion 120 contacts the part to be processed, the fixture body 110 will not contact the part to be processed, thereby avoiding the parts of the part to be processed that do not need to be heated being burned.

[0042] Since the hot riveting fixture 010 in this embodiment is used to heat-press grooves on the outside of the sheath of the wire, and the cross-section of the wire is usually circular, in order to ensure as much as possible that the parts of the wire that do not need to be heat-pressed into grooves are not burned, the clearance groove 111 is set as an arc groove.

[0043] It should be understood that in other embodiments, the clearance groove 111 may also be a rectangular groove or the like, and is not specifically limited here.

[0044] The number of protrusions 120 on the heatable fixture 100 can be selected as needed; in a preferred embodiment, the heatable fixture 100 includes at least two protrusions 120, which are spaced apart circumferentially along the arcuate groove. This arrangement allows at least two grooves to be hot-pressed onto the exterior of the workpiece at one time using a single heatable fixture 100, thereby ensuring the efficiency of hot-pressing the grooves.

[0045] In a preferred embodiment, the heatable fixture 100 includes at least two protrusions 120, which are spaced apart along the extension direction of the central axis of the arc groove. This arrangement enables at least two grooves to be heat-pressed onto the outside of the workpiece at one time using a single heatable fixture 100, thereby improving the efficiency of heat-pressing at least two grooves.

[0046] The heatable fixture 100 of this embodiment includes 6 protrusions 120, which are distributed in two rows. The two rows of protrusions 120 are spaced apart along the inner circumference of the arc groove. Each row includes 3 protrusions 120, and the 3 protrusions 120 in each row are spaced apart along the extension direction of the central axis of the arc groove.

[0047] In other embodiments, the number of protrusions 120 on the heatable fixture 100 may be 1, 2, 3, 10, etc., and no specific limitation is made here.

[0048] The shape of the protrusion 120 can be set as needed. In this embodiment, the protrusion 120 is roughly quadrangular prism so that the groove formed by the heat treatment of the protrusion 120 is roughly rectangular.

[0049] Of course, in other embodiments, the protrusion 120 may also be cylindrical, triangular prism, pentagonal prism, etc., and no specific limitation is made here.

[0050] Furthermore, since the hot riveting fixture 010 of this embodiment is used to heat-press grooves on the outer surface of the conductor sheath, in order to ensure that the depth of the grooves at various positions on the sheath surface is approximately the same; please refer to... Figure 4 One end of the protrusion 120 not connected to the fixture body 110 is provided with a slope 121, and the slopes 121 of two protrusions 120 distributed circumferentially along the arc groove are roughly arranged in a trumpet shape, that is, the distance between the slopes 121 of two protrusions 120 distributed circumferentially along the arc groove gradually increases from the end closer to the fixture body 110 to the end farther away from the fixture body 110. By providing a slope 121 at the end of the protrusion 120, compared with the embodiment where the end face of the protrusion 120 is a horizontal plane, the problem of uneven depth of the groove formed by heat treatment can be improved, thereby ensuring that the injection molding material is fully filled in the groove, and ensuring the reliability of subsequent injection molding.

[0051] It should be noted that the hot riveting fixture 010 in this embodiment is used to heat-press grooves into the surface of the sheath of the conductor. In order to avoid damage to the metal wire inside the conductor during heat pressing, the grooves should be heat-pressed through by the hot riveting fixture 010.

[0052] The height of the protrusion 120 is at least 0.3mm-1mm, so as to use the protrusion 120 to heat-press a groove with a depth of 0.3mm-1mm on the sheath of the conductor, thereby ensuring that the structure injected into the outer sheath of the conductor is firmly attached to the sheath.

[0053] It should be noted that the height of the protrusion 120 is at least 0.3mm-1mm, which means that the height of the protrusion 120 can be greater than 1mm. When using the protrusion 120 to heat-press grooves on the surface of the sheath, it is only necessary to ensure that the protrusion 120 can heat grooves with a depth of 0.3mm-1mm on the sheath.

[0054] It should also be noted that using a protrusion 120 with a length greater than 1mm to heat-press a groove into the surface of the sheath can also prevent the parts that do not need to be heated from being burned due to the length of the protrusion 120 being too short. For example, if the length of the protrusion 120 is 0.5mm, and if a groove with a depth of 0.5mm is to be heat-pressed into the surface of the sheath using the protrusion 120, the entire protrusion 120 needs to be inserted into the sheath. In this way, other parts of the sheath that do not need to be heated may come into contact with the bottom of the relief groove 111, thus causing burns.

[0055] To prevent the raised part from sticking after hot stamping, chrome plating can be applied to the surface of the raised part.

[0056] Please refer to Figure 5 In this embodiment, the fixture body 110 includes a body portion 112 and a riveting portion 113. The riveting portion 113 is connected to the body portion 112 and has a relief groove 111. The protrusion 120 is connected to the body portion 112. Further, the fixture body 110 includes three riveting portions 113. Along the extension direction of the central axis of the relief groove 111, the three riveting portions 113 are arranged sequentially at intervals, and each riveting portion 113 has a relief groove 111. The three relief grooves 111 are relatively distributed. By arranging two adjacent riveting portions 113 at intervals, the gap 114 between them can avoid the wire, thereby ensuring that the parts of the wire that do not need to be heated are not burned.

[0057] The heatable fixture 100 of this embodiment also includes an electric heating element (not shown in the figure), which is disposed on the fixture body 110 and is used to heat the protrusion 120; in this way, it can be ensured that the protrusion 120 is used to reliably heat-seal grooves on the workpiece to be processed.

[0058] The electric heating element can be selected as needed; in this embodiment, the electric heating element is a heating resistor. The heating temperature can be 120±5℃, and is not specifically limited here.

[0059] It should be understood that in other embodiments, the electric heating element may also be a mica heating element, a ceramic heater, etc., and is not specifically limited here.

[0060] It should be noted that the electric heating element can heat only the protrusion 120 or heat both the protrusion 120 and the fixture body 110 simultaneously; no specific limitation is made here.

[0061] Optionally, the wire preparation apparatus also includes a thermocouple disposed in the heatable fixture 100 for detecting the heating temperature of the electric heating element; this arrangement ensures that the wire preparation apparatus can reliably heat-press grooves into the parts at 120±5°C. Furthermore, both the thermocouple and the electric heating element are disposed within the body portion 112 of the fixture body 110 to reliably ensure that the protrusion 120 can be heated to the required temperature and to ensure the accuracy and reliability of temperature detection.

[0062] The wire preparation apparatus of this embodiment also includes a drive assembly (not shown in the figure), which is in transmission engagement with at least one of the two heatable fixtures 100 to move the two heatable fixtures 100 closer to or further apart from each other. This arrangement helps to improve the automation level of the wire preparation apparatus and ensures improved efficiency in heat-forming grooves.

[0063] The drive assembly can be selected as needed; the drive assembly in this embodiment includes a cylinder, which is connected to one of the heatable fixtures 100 and the other heatable fixture 100 is fixed in position. The cylinder is used to drive the heatable fixture 100 connected to it to move closer to or away from the other heatable fixture 100. When the two heatable fixtures 100 are close to each other, the workpiece to be processed between them can be clamped and the workpiece clamped between them can be heat-pressed into a groove.

[0064] It should be noted that the cylinder is connected to the main body 112 of the heatable fixture 100 in a transmission connection to avoid interference with the protrusion 120 forming a groove on the component due to heat.

[0065] It should be understood that in other embodiments, the drive assembly includes two cylinders that are connected in a one-to-one manner to two heatable fixtures 100, so as to reliably drive the two heatable fixtures 100 toward or away from each other using the two cylinders.

[0066] In other embodiments, the drive assembly may also include hydraulic cylinders or electric actuators, etc., which are not specifically limited here.

[0067] The working principle of the wire preparation device in this embodiment includes: Please refer to...Figure 1 and Figure 6 The wire 200 to be processed is placed between two heatable fixtures 100, and the protrusions 120 of the two heatable fixtures 100 are heated. A drive assembly is used to bring the two heatable fixtures 100 closer together, so that the protrusions 120 heat-press grooves 211 into the outer surface of the sheath 210 of the wire 200. This allows the raw material to flow into the heat-pressed grooves 211 when the sheath 220 of the wire 200 is injection molded onto the sheath 210; resulting in... Figure 6 The wire shown.

[0068] In summary, the hot riveting fixture 010 of the present invention can be used in a wire preparation device. The hot riveting fixture 010 is easy to operate and highly efficient by setting grooves on the parts to be processed. The processing does not require the use of cyclohexanone and is highly safe.

[0069] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A hot clinching tool, characterized by, The application relates to a hot riveting jig, which comprises two heatable jigs (100) capable of clamping a part to be processed, and at least one of the heatable jigs (100) is capable of hot-pressing a groove on the surface of the part to be processed; wherein at least one of the heatable jigs (100) comprises a jig body (110) and a protrusion (120) connected with the jig body (110), and the protrusion (120) is used for hot-pressing a groove on the outside of the part to be processed. The jig body (110) is provided with a clearance groove (111), and the protrusion (120) is located in the clearance groove (111). The clearance groove (111) is a circular arc groove, and the heatable jig (100) comprises at least two protrusions (120); the at least two protrusions (120) are distributed along the circumferential direction of the circular arc groove. The end of the protrusion (120) not connected with the jig body (110) is provided with an inclined surface (121), and the distance between the inclined surfaces (121) of the two protrusions (120) distributed along the circumferential direction of the circular arc groove gradually increases from the end close to the jig body (110) to the end far away from the jig body (110). Each of the heatable jigs (100) comprises the jig body (110) and the protrusion (120) connected with the jig body (110); and the two heatable jigs (100) are used for hot-pressing a groove on the opposite sides of the part to be processed.

2. The hot clinching tool of claim 1, wherein, The at least two protrusions (120) are distributed along the extension direction of the central axis of the circular arc groove.

3. The hot clinching tool of claim 1, wherein, The jig body (110) comprises a body part (112) and three riveting parts (113), the three riveting parts (113) are connected with the body part (112), the three riveting parts (113) are provided with the clearance groove (111), and the protrusion (120) is connected with the body part (112); the three riveting parts (113) are sequentially and spacedly arranged along the extension direction of the central axis of the clearance groove (111), and the clearance grooves (111) of the three riveting parts (113) are relatively distributed.

4. The hot clinch tool of claim 1, wherein, The height of the protrusion (120) is at least 0.3-1 mm; and / or 5. The hot clinching tool according to any one of claims 1-4, characterized in that The surface of the protrusion (120) is chrome-plated. The heatable jig (100) further comprises an electric heating element arranged on the jig body (110) and used for heating the protrusion (120).

6. The hot clinching tool according to any one of claims 1-4, wherein The application further relates to a wire preparation device comprising the hot riveting jig according to any one of claims 1-6, and the part to be processed is a wire, and the hot riveting jig is used for hot-pressing a groove on the surface of the wire.

7. A wire preparation device, characterized by The wire preparation device further comprises a driving assembly in transmission cooperation with at least one of the two heatable jigs (100) and used for moving the two heatable jigs (100) close to or away from each other.

8. The guide wire preparation device of claim 7, wherein ​

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