Wire drawing jig

Abstract

The utility model relates to the field of jigs, and provides a wire drawing jig which comprises an upper die plate and a lower die plate. The lower die plate is provided with a limiting part, the limiting part provides limiting for a workpiece, the workpiece is placed on the lower die plate and abuts against the limiting part, the upper die plate and the lower die plate are in press fit, the workpiece is fixed to the limiting part, a pull wire of the workpiece extends out of the lower die plate, the pull wire is pulled out, and the workpiece is fixed to the limiting part. And a workpiece is fixed by the upper template and the lower template and is separated from the stay wire. The pull wire drawing device has the effect of conveniently fixing a workpiece to draw a pull wire.

Description

Technical Field

[0001] The present application relates to the field of jigs, and in particular to a wire drawing jig. Background Art

[0002] When an annular workpiece is produced, there is a forming line inside. After the forming line is extracted, a forming cavity is formed in the workpiece. Therefore, the forming line needs to be extracted after the workpiece is formed.

[0003] Currently, the common wire extraction method on the market is usually performed using manual wire extractors. After manually holding the workpiece, one end of the wire is clamped with the manual wire extractor and pulled out with force. This method is labor-intensive and can easily cause fatigue to the operator. It can also easily cause the workpiece to shift, resulting in damage to the inner wall of the workpiece or deformation of the workpiece during the wire extraction process, affecting product quality. Summary of the Invention

[0004] In order to improve the above-mentioned problems, the present application provides a wire drawing fixture.

[0005] The wire drawing fixture provided in this application adopts the following technical solution:

[0006] A wire extraction jig comprises an upper template and a lower template; the lower template is provided with a limiting portion, the limiting portion provides a limit for a workpiece, the workpiece is placed on the lower template and abuts against the limiting portion, the upper template and the lower template are pressed together to fix the workpiece on the limiting portion, and the pulling wire of the workpiece extends outward from the lower template, the pulling wire is extracted, and the workpiece is fixed by the upper template and the lower template and separated from the pulling wire.

[0007] By adopting the above technical solution, the pressing effect of the upper template and the lower template is used to fix the workpiece on the limiting part, so that the workpiece is firmly placed, and then the pulling wire is extracted, which ensures the stability of the workpiece placement and avoids the deviation of the workpiece. The tightening effect of the limiting part also reduces the loss of the inner wall of the workpiece and the deformation of the workpiece due to force during the pulling process.

[0008] Optionally, the lower template is provided with a plurality of limiting portions.

[0009] By adopting the above technical solution, when the upper template and the lower template are pressed together at a single time, wire drawing can be performed on multiple workpieces at the same time, thereby accelerating the wire drawing speed and improving the drawing efficiency.

[0010] Optionally, the limiting portion includes a limiting protrusion; two limiting grooves are provided on the limiting protrusion; when the workpiece is placed, it is sleeved on the limiting protrusion, and both ends are respectively inserted into the two limiting grooves.

[0011] By adopting the above technical solution, the workpiece is tightly pressed against the limiting protrusion, and the two limiting grooves are limited, so that when the pull wire is extracted, the workpiece cannot be separated from the limiting protrusion and the limiting groove, thereby facilitating the removal of the pull wire.

[0012] Optionally, a fixing protrusion is provided at the notch of the limiting groove, and the fixing protrusion is pressed against both ends of the workpiece.

[0013] By adopting the above technical solution, the fixing protrusion is pressed against the two ends of the workpiece, and the fixing protrusion reduces the inner diameter of the groove of the limiting groove, so that the fixing protrusion is pressed against the workpiece in the direction of the workpiece, so as to achieve the effect of further clamping or pressing the two ends of the workpiece.

[0014] Optionally, the lower template is further provided with a guide groove that matches the workpiece placement position.

[0015] By adopting the above technical solution, the guide groove can enable the workpiece to be placed along the inner groove of the guide groove, so that the workpiece can be placed stably, quickly and accurately in contact with the limiting protrusion.

[0016] Optionally, a fitting groove corresponding to the limiting groove is provided on the upper template. When the upper template is fitted with the lower template, the limiting groove and the fitting groove are docked to form a complete fixed cavity, and the workpiece is located in the fixed cavity.

[0017] By adopting the above technical solution, when the upper template and the lower template are fitted together, the limiting groove and the fitting groove are connected to form a complete fixed cavity. The workpiece is located in the fixed cavity, and the inner wall of the workpiece fits the groove wall of the limiting groove and the groove wall of the fitting groove respectively, thereby increasing the contact area, increasing the friction force, and making the workpiece more stable.

[0018] Optionally, friction lines for anti-slip are provided in the engaging groove.

[0019] By adopting the above technical solution, the friction lines can increase the contact friction with the workpiece, especially when the upper template and the lower template are pressed together, further preventing the workpiece from being pulled out of the fixture due to excessive tension.

[0020] Optionally, the upper template is provided with a plurality of positioning holes, and the lower template is provided with positioning protrusions corresponding one-to-one to the positioning holes, and the positioning holes are plugged into the positioning protrusions.

[0021] By adopting the above technical solution, the role of the positioning holes and positioning protrusions is to enable the upper template and the lower template to be quickly positioned and fitted without spending time on alignment, thereby ensuring accuracy while improving ease of use.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. The workpiece is fixed to the limit part by the pressing action of the upper template and the lower template, so that the workpiece is placed firmly. Then the wire is pulled out, which ensures the stability of the workpiece and avoids the deviation of the workpiece. The tightening action of the limit part also reduces the loss of the inner wall of the workpiece and the deformation of the workpiece during the pulling process.

[0024] 2. When the upper and lower templates are pressed together at a single time, multiple workpieces can be pulled and drawn at the same time, which speeds up the extraction and improves the extraction efficiency.

[0025] 3. By using the workpiece and the limiting protrusion to press tightly together and the two limiting grooves to limit the position, the workpiece cannot be separated from the limiting protrusion and the limiting groove when the wire is extracted, thereby facilitating the removal of the wire;

[0026] 4. The fixing protrusion is pressed against both ends of the workpiece, and the fixing protrusion reduces the inner diameter of the notch of the limiting groove, so that the fixing protrusion is pressed against the workpiece in the direction of the workpiece, so as to achieve the effect of further clamping or pressing the two ends of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 1 is a schematic diagram of the three-dimensional structure of a fixture in one embodiment of the present application;

[0028] Figure 2 This application Figure 1 Schematic diagram of the enlarged structure of A;

[0029] Figure 3 is a bottom-up structural schematic diagram of a fixture in some embodiments of the present application;

[0030] Figure 4 is a partial three-dimensional structural diagram of a fixture in some embodiments of the present application;

[0031] The marks in the accompanying drawings are: 1. Upper template, 11. Fitting groove, 12. Positioning hole, 2. Lower template, 21. Limiting part, 211. Limiting protrusion, 212. Limiting groove, 213. Fixing protrusion, 22. Guide groove, 23. Positioning protrusion, 24. Step opening, 25. Lifting plate. DETAILED DESCRIPTION

[0032] The following describes the embodiments of the present application through specific examples. Those skilled in the art can easily understand the other advantages and effects of the present application from the information disclosed in this application. The present application can also be implemented or applied through different specific embodiments. The details in this application can also be modified or changed according to different viewpoints and application systems without departing from the spirit of this application. It should be noted that the embodiments and features in the embodiments of this application can be combined with each other unless they conflict.

[0033] The following is a detailed description of the embodiments of the present application with reference to the accompanying drawings so that those skilled in the art can easily implement the present application. The present application can be embodied in many different forms and is not limited to the embodiments described herein.

[0034] In the description of this application, reference to the terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of this application. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and integrate different embodiments or examples described in this application, as well as features of different embodiments or examples, unless otherwise contradictory.

[0035] Furthermore, the terms "first" and "second" are used solely to indicate a target and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the context of this application, "plurality" means two or more, unless otherwise specifically defined.

[0036] Throughout this specification, when a device is said to be "connected" to another device, this includes not only "direct connection" but also "indirect connection" with other elements interposed therebetween. Furthermore, when a device is said to "include" a certain component, unless otherwise stated, this does not exclude the inclusion of other components but rather implies that the device may include other components.

[0037] The following is combined with Figure 1 -Attached Figure 4 , further details of this application are given.

[0038] The embodiment of the present application discloses a wire drawing jig.

[0039] A wire drawing fixture is used for the wire drawing process of the internal forming wire of the workpiece, which can remove the wire used for the internal forming of the workpiece to complete the forming cavity in the workpiece. Figure 1 The artifact shown.

[0040] refer to Figure 1 As shown, the jig includes an upper template 1 and a lower template 2; the upper template 1 and the lower template 2 are of the same style and can adopt a rectangular plate structure made of metal. The metal material can provide tensile and compressive resistance, which can reduce the wear of the jig during multiple uses.

[0041] The lower template 2 is provided with a limiting portion 21, which provides a limit for the workpiece. When the upper template 1 is separated from the lower template 2, the space above the lower template 2 is opened so that the workpiece can be placed on the lower template 2 and abut against the limiting portion 21. The workpiece is clamped by the limiting portion 21 so that the workpiece cannot escape from the limiting portion 21.

[0042] Then, the upper template 1 and the lower template 2 are pressed together to completely fix the workpiece on the limiting part 21. The workpiece cannot be separated from the upper template 1 and the lower template 2. At the same time, the pull wire of the workpiece extends out of the lower template 2, and the worker can pull out the pull wire. The workpiece is fixed by the upper template 1 and the lower template 2 and separated from the pull wire.

[0043] Specifically, the workpiece is fixed to the limiting portion 21 by utilizing the pressing effect of the upper template 1 and the lower template 2, so that the workpiece is firmly placed, and then the pulling wire is extracted, which ensures the stability of the workpiece placement and avoids the workpiece from shifting. The tightening effect of the limiting portion 21 also reduces the loss of the inner wall of the workpiece and the deformation of the workpiece during the pulling process.

[0044] Furthermore, the lower template 2 is provided with a number of limit portions 21, so that when the upper template 1 and the lower template 2 are pressed together at a single time, wires can be extracted from multiple workpieces at the same time, thereby speeding up the wire extraction and improving the extraction efficiency.

[0045] In some embodiments, reference Figure 1 and Figure 2 As shown, the limiting portion 21 includes a limiting protrusion 211, and two limiting grooves 212 are provided on the limiting protrusion 211. The two limiting grooves 212 are used to clamp the two ends of the workpiece. When the workpiece is placed, it is sleeved on the limiting protrusion 211 so that the inner wall of the workpiece is close to the limiting protrusion 211. Then the two ends of the workpiece are respectively inserted into the two limiting grooves 212, so that the position of the workpiece is fixed. By using the tight contact between the workpiece and the limiting protrusion 211 and the limitation of the two limiting grooves 212, when the pull wire is extracted, the workpiece cannot be separated from the limiting protrusion 211 and the limiting groove 212, thereby facilitating the removal of the pull wire.

[0046] For further reference, Figure 2 As shown, a fixing protrusion 213 is provided at the notch of the limiting groove 212, and the fixing protrusion 213 is pressed against the two ends of the workpiece. The fixing protrusion 213 reduces the inner diameter of the notch of the limiting groove 212, so that the fixing protrusion 213 is pressed against the workpiece in the direction of the workpiece, so as to achieve the effect of further clamping or pressing the two ends of the workpiece. After the workpiece is tightened, it cannot be separated from the limiting groove 212 and the limiting protrusion 211, which improves the stability when removing the wire.

[0047] Furthermore, a guide groove 22 matching the workpiece placement position is provided on the lower template 2. The guide groove 22 enables the workpiece to be placed along the inner groove of the guide groove 22 when placed, so that the workpiece can be placed stably, quickly and accurately in contact with the limiting protrusion 211. The position of the workpiece can also be limited by the guide groove 22 when the wire is extracted, further reducing the offset.

[0048] In some embodiments, reference Figure 3 As shown, the upper template 1 is provided with a fitting groove 11 corresponding to the limit groove 212, that is, the number and setting position of the fitting groove 11 correspond one to one, so that when the upper template 1 and the lower template 2 are fitted together, the limit groove 212 and the fitting groove 11 are docked to form a complete fixed cavity, and the workpiece is located in the fixed cavity, and the inner wall of the workpiece is respectively fitted with the groove wall of the limit groove 212 and the groove wall of the fitting groove 11, thereby increasing the contact area, increasing the friction force, and making the workpiece more stable. At the same time, the upper template 1 covers the lower template 2, so that the workpiece cannot be separated from the limit groove 212 and the limit protrusion 211.

[0049] Among them, the inner diameter of the limiting groove 212 and the fitting groove 11 can be slightly smaller than the diameter of the workpiece, so that when the workpiece is embedded in the limiting groove 212 and the fitting groove 11, the groove wall can be fastened because the inner diameter is slightly larger than the limiting groove 212 and the fitting groove 11, especially when the upper template 1 presses the workpiece downward, the workpiece can be subjected to the pressing force between the upper template 1 and the lower template 2, so as to further improve the stability of the workpiece placement, and in the pressing process, the workpiece fits the groove wall of the fitting groove 11 and the limiting groove 212 and the wall surface of the limiting protrusion 211, so that when the wire is extracted, it is subjected to the action of force, and each position of the workpiece is subjected to the pressing effect, thereby reducing the position offset and deformation of the workpiece.

[0050] Furthermore, anti-slip friction grooves are provided in the fitting groove 11, which can increase the contact friction with the workpiece, especially when the upper template 1 and the lower template 2 are pressed together, further preventing the workpiece from being pulled out of the fixture due to excessive tension.

[0051] In some embodiments, reference Figure 1 and Figure 3 As shown, the upper template 1 is provided with a number of positioning holes 12, and the lower template 2 is provided with positioning protrusions 23 corresponding to the positioning holes 12 one by one. The positioning holes 12 are plugged into the positioning protrusions 23. The function of the positioning holes 12 and the positioning protrusions 23 is to enable the upper template 1 and the lower template 2 to be quickly positioned and fitted without spending time on alignment, thereby ensuring accuracy while improving ease of use. At the same time, the positioning protrusions 23 and the positioning holes 12 can also provide a limiting function, so that when pressing, the position of the upper template 1 or the lower template 2 will not be offset, ensuring that the pressing position of the upper template 1 and the lower template 2 is accurate and fixed during the process of pulling the wire.

[0052] For further reference, Figure 1 As shown, both the lower template 2 and the upper template 1 are provided with a stepped opening 24, and the stepped opening 24 of the upper template 1 fits with the stepped opening 24 of the lower template 2. When the upper template 1 and the lower template 2 are pressed together, the two stepped openings 24 are butted against each other. The fitting form of the stepped openings 24 can further improve the stability of the upper template 1 and the lower template 2 when pressed together, and avoid offset or misalignment.

[0053] Further, refer to Figure 4 As shown, a lifting plate 25 is also inserted at the stepped opening 24 of the lower template 2. The lifting plate 25 extends along the stepped opening 24 to the last limiting portion 21, and the length of the lifting plate 25 is longer than the length of the lower template 2, so that the lifting plate 25 can extend a part when inserted into the stepped opening 24.

[0054] The purpose of setting up the lifting plate 25 is that when all the workpieces are pulled out and the pulling wires are completed, the upper template 1 is separated from the lower template 2, and then the lifting plate 25 is lifted or lifted upward, so that the lifting plate 25 pushes all the workpieces upward to loosen the workpieces or eject the workpieces from the limiting groove 212 and the limiting protrusion 211, so as to facilitate the unified ejection and collection of all the workpieces and improve the convenience of recycling.

[0055] The lifting plate 25 may be a wedge-shaped plate, with a lower height near the limiting protrusion 211 and a higher height near the positioning protrusion 23 , so that the lifting plate 25 does not affect the placement of the workpiece.

[0056] Among them, the width of the lifting plate 25 is from the mouth wall of the stepped opening 24 to the end near the guide groove 22, so that the lifting plate 25 will not occupy the placement space of the workpiece. When the workpiece needs to be taken out, the lifting plate 25 is pulled, and the wedge surface of the lifting plate 25 will move along the bottom of the workpiece and lift the workpiece up, thereby completing the ejection and facilitating the collection of the workpiece.

[0057] The examples of this specific embodiment are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, any equivalent changes made based on the structure, shape, and principle of this application should be included in the scope of protection of this application.

Claims

1. A wire drawing fixture, characterized in that: The invention comprises an upper template (1) and a lower template (2); the lower template (2) is provided with a limiting portion (21), the limiting portion (21) provides a limit for the workpiece, the workpiece is placed on the lower template (2) and abuts against the limiting portion (21), the upper template (1) and the lower template (2) are pressed together, the workpiece is fixed on the limiting portion (21), and the pull wire of the workpiece extends outward from the lower template (2), the pull wire is extracted, and the workpiece is fixed by the upper template (1) and the lower template (2) and separated from the pull wire.

2. A wire drawing jig according to claim 1, characterized in that: The lower template (2) is provided with a plurality of limiting portions (21).

3. A wire drawing jig according to claim 2, characterized in that: The limiting portion (21) comprises a limiting protrusion (211); two limiting grooves (212) are provided on the limiting protrusion (211); when the workpiece is placed, it is sleeved on the limiting protrusion (211), and its two ends are respectively inserted into the two limiting grooves (212).

4. A wire drawing jig according to claim 3, characterized in that: A fixing protrusion (213) is provided at the notch of the limiting groove (212), and the fixing protrusion (213) is tightly pressed against both ends of the workpiece.

5. The wire drawing jig according to claim 1, characterized in that: The lower template (2) is also provided with a guide groove (22) that matches the workpiece placement position.

6. The wire drawing jig according to claim 3, characterized in that: The upper template (1) is provided with a fitting groove (11) corresponding to the limiting groove (212); when the upper template (1) and the lower template (2) are fitted together, the limiting groove (212) and the fitting groove (11) are docked to form a complete fixed cavity, and the workpiece is located in the fixed cavity.

7. A wire drawing jig according to claim 6, characterized in that: The engaging groove (11) is provided with friction lines for anti-slip.

8. The wire drawing jig according to claim 1, characterized in that: The upper template (1) is provided with a plurality of positioning holes (12), and the lower template (2) is provided with positioning protrusions (23) corresponding one-to-one to the positioning holes (12), and the positioning holes (12) are plugged into the positioning protrusions (23).

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