Nut extrusion jig

Abstract

The utility model discloses a nut extrusion jig which comprises a tool base used for positioning a workpiece. The positioning assembly comprises a positioning column and an elastic part, a positioning part is arranged at the top end of the positioning column, and the positioning part is used for being connected to a nut inner hole of a workpiece in a penetrating mode; the positioning column is connected to one end of the elastic component, and one end of the elastic component is connected to the tool base; the elastic component is used for providing elastic stress for driving the positioning column to move upwards; and the ejector rod is used for being inserted into the nut and pressing the nut. According to the nut extrusion jig, the positioning part of the positioning column penetrates into the inner hole of the nut of the workpiece to position the nut, and then the ejector rod is pressed downwards corresponding to the nut structure, so that the nut of the workpiece is pressed, and the positioning column used for positioning the nut can be pressed to compress the elastic component to be separated from the workpiece.

Description

Technical Field

[0001] This utility model relates to the field of tooling and fixture technology, and in particular to a nut pressing fixture. Background Technology

[0002] Currently, with the development of hard drive storage technology, as a core component of computer consumer electronics products, its application in human production and daily life is becoming increasingly widespread. Among them, the read / write head arm is a crucial component of the hard drive, and its performance directly affects the hard drive's performance. Due to the certain defect rate in the pressing of the read / write head arm and nut, it is necessary to remove the nut from the read / write head arm and reassemble it for reuse.

[0003] Traditional methods involve pressing out the nut without a jig, which requires a long time for manual alignment. This not only involves high manual labor intensity but also easily damages the magnetic head arm, resulting in economic losses. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a nut pressing fixture, in which the positioning part of the positioning post is inserted into the inner hole of the nut of the workpiece for nut positioning, and then the ejector rod presses downwards corresponding to the nut structure. In this way, the nut of the workpiece is compressed, and the positioning post used to position the nut can be compressed and the elastic component is separated from the workpiece.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A nut pressing fixture, comprising,

[0007] A tooling base, which is used to position the workpiece;

[0008] A positioning assembly includes a positioning post and an elastic component. The top end of the positioning post is provided with a positioning part for passing through the inner hole of the nut on the workpiece. The positioning post is connected to one end of the elastic component, and one end of the elastic component is connected to the tooling base. The elastic component is used to provide an elastic stress that drives the positioning post to move upward.

[0009] An ejector rod is used to insert into the nut and apply pressure to the nut.

[0010] Furthermore, the ejector rod is provided with an ejector protrusion and an ejector step, the ejector protrusion being protruding from the bottom end face of the ejector rod; the ejector step surrounding the outer periphery of the ejector protrusion.

[0011] Furthermore, the bottom outer surface of the ejector protrusion is provided with a guide cone surface; the outer diameter of the guide cone surface gradually decreases from top to bottom.

[0012] Furthermore, the positioning part includes a positioning protrusion and a positioning step; the positioning protrusion protrudes from the top surface of the positioning post, and the positioning step surrounds the outer periphery of the positioning protrusion.

[0013] Furthermore, the tooling base is provided with a positioning groove; the top end of the positioning groove extends to the top surface of the tooling base; the positioning post and the elastic component are both installed in the positioning groove, and the elastic component provides a way to drive the positioning post to move upward so that the positioning part extends out of the positioning groove.

[0014] Furthermore, the top inner wall of the positioning groove is provided with a first limiting step; the outer surface of the positioning post is provided with a second limiting step; the second limiting step is used to limit and abut against the first limiting step when the positioning post moves upward.

[0015] Furthermore, the bottom end of the positioning groove extends to the bottom end face of the tooling base; a positioning screw is connected to the bottom end of the positioning groove.

[0016] Furthermore, the end face of the tooling base is provided with a support step and a support boss, the support boss protruding from the end of the support step; the positioning component is provided on the support boss.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. By applying downward force to the ejector rod through a pressing mechanism (such as a top-pressing cylinder or a top-pressing hydraulic cylinder), the ejector rod moves downward after being pressed, and can press down to the workpiece nut. After the workpiece nut is pressed, the positioning pin used to position the nut can be compressed and the elastic component can be separated from the workpiece. In this way, the nut is easier to remove from the workpiece, and it is ensured that the magnetic head arm is not damaged. It can also save labor and time costs.

[0019] 2. During the downward disengagement of the workpiece nut, the positioning part of the positioning pin penetrates into the inner hole of the nut in the workpiece to position the nut. This reduces the risk of misalignment during the downward disengagement process and prevents damage to the nut hole in the workpiece due to misalignment. Furthermore, after the nut separates from the workpiece, it moves downwards along with the positioning part of the positioning pin, and is gradually supported by the elastic component, preventing the nut from falling off after disengagement. Attached Figure Description

[0020] Figure 1 This is a cross-sectional view of the nut pressing fixture of this utility model;

[0021] Figure 2 This is a schematic diagram of the overall structure of the nut pressing fixture of this utility model.

[0022] Figure 3This is an exploded structural diagram of the nut pressing fixture of this utility model;

[0023] Figure 4 This is a schematic diagram of the exploded structure of the nut pressing fixture of this utility model from another perspective.

[0024] Figure 5 This is a schematic diagram of the tooling base of this utility model;

[0025] Figure 6 This is a schematic diagram of the ejector rod of this utility model.

[0026] In the diagram: 10. Tooling base; 11. Support boss; 12. Support step; 13. Positioning groove; 20. Positioning post; 21. Positioning protrusion; 22. Positioning step; 23. Second limit step; 30. Elastic component; 40. Positioning screw; 50. Ejector rod; 51. Ejector protrusion; 52. Ejector step; 60. Workpiece; 61. Nut. Detailed Implementation

[0027] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments:

[0028] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not 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 utility model.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0030] like Figures 1-6 The nut pressing fixture shown includes a tooling base 10, a positioning assembly, and an ejector rod 50. The tooling base 10 can position the workpiece 60. Specifically, the positioning assembly includes a positioning pin 20 and an elastic member 30. A positioning part is provided at the top of the positioning pin 20, which can pass through the inner hole of the nut 61 in the workpiece 60. The positioning pin 20 is connected to one end of the elastic member 30, and one end of the elastic member 30 is connected to the tooling base 10. The elastic member 30 can provide an elastic stress, under which the positioning pin 20 moves upward. Additionally, the ejector rod 50 can be inserted into the nut 61 and apply pressure to the nut 61.

[0031] Based on the above structure, when using the nut pressing fixture of this utility model, the workpiece 60 can be placed on the tooling base 10. When the workpiece 60 is placed on the tooling base 10, the inner hole of the nut 61 of the workpiece 60 nut 61 on the tooling base 10 can be aligned with the positioning part of the positioning post 20. Then, under the action of the elastic member 30, the positioning part can move upward and penetrate into the inner hole of the nut 61 of the workpiece 60 nut 61, so that the positioning part of the positioning post 20 positions the workpiece 60 nut 61. After that, the ejector rod 50 is aligned with... Workpiece 60 and nut 61 are connected, and then a pressing mechanism (such as a pressing cylinder or pressing oil cylinder) is used to apply downward force to the ejector rod 50. After being pressed, the ejector rod 50 moves downward and can press down onto workpiece 60 and nut 61. After workpiece 60 and nut 61 are pressed, the positioning post 20 used to position nut 61 can be compressed and the elastic component 30 can be separated from workpiece 60. In this way, nut 61 is easier to remove from workpiece 60, and the magnetic head arm is not damaged. It can also save labor and time costs.

[0032] During the downward disengagement of the workpiece 60 and nut 61, the positioning part of the positioning pin 20 is inserted into the inner hole of the nut 61 of the workpiece 60 for positioning of the nut 61. This reduces the deviation that may occur during the downward disengagement of the nut 61 and prevents damage to the nut 61 hole of the workpiece 60 due to deviation. In addition, after the nut 61 is separated from the workpiece 60, it moves downward together with the positioning part of the positioning pin 20 and is supported by the elastic member 30 as it is gradually compressed, preventing the nut 61 from falling off after disengagement.

[0033] Specifically, in this embodiment, the ejector rod 50 is provided with an ejector protrusion 51 and an ejector step 52. The ejector protrusion 51 protrudes from the bottom end face of the ejector rod 50; the ejector step 52 surrounds the outer periphery of the ejector protrusion 51. Thus, when the nut 61 is ejected downwards, the ejector protrusion 51 at the bottom end of the ejector rod 50 can extend into the inner hole of the nut 61 in the workpiece 60. At the same time, the ejector step 52 surrounding the outer periphery of the ejector protrusion 51 can abut against the top periphery of the nut 61. When the ejector rod 50 applies downward pressure, the ejector step 52 can apply pressure to the top surface of the nut 61, while the ejector protrusion 51 is positioned in the middle position. In conjunction with the positioning part of the positioning post 20 below, it prevents the nut 61 from deflecting during the ejection process. The ejection process of the nut 61 is smooth, and the workpiece 60 is not scratched due to deflection during the ejection process of the nut 61.

[0034] Furthermore, a guide cone surface can be provided on the outer surface of the bottom end of the ejector protrusion 51, and the outer diameter of the guide cone surface gradually decreases from top to bottom. In this way, when the ejector rod 50 presses downward, the guide cone surface can smoothly insert into the inner hole of the nut 61 of the workpiece 60 nut 61, reducing the possibility of jamming during the insertion process.

[0035] Furthermore, the positioning part in this embodiment includes a positioning protrusion 21 and a positioning step 22. The positioning protrusion 21 protrudes from the top surface of the positioning post 20, and the positioning step 22 surrounds the outer periphery of the positioning protrusion 21. When positioning the workpiece 60 and nut 61, the positioning post 20 can move upward under the elastic stress of the elastic member 30, and the positioning protrusion 21 of the positioning post 20 can be inserted into the inner hole of the nut 61 of the workpiece 60. The positioning step 22 can be held against the bottom surface of the workpiece 60 and nut 61 under the elastic stress. When the ejector rod 50 pushes downward, the ejector step 52 can apply pressure to the top surface of the nut 61, and the bottom surface of the nut 61 can apply pressure to the positioning step 22. In this way, the force-bearing surface is large, the ejection is stable, the workpiece 60 and nut 61 are easier to disengage, and it is not easy to deviate.

[0036] In addition, the bottom surface of the nut 61 is supported by the positioning step 22, making it less likely to come off after being pushed off.

[0037] Furthermore, in order to facilitate the installation of the positioning post 20 and the elastic component 30, a positioning groove 13 can be provided on the tooling base 10, and the top end of the positioning groove 13 extends to the top surface of the tooling base 10. The positioning post 20 and the elastic component 30 are both installed in the positioning groove 13. The elastic component 30 provides a way to drive the positioning post 20 to move upward so that the positioning part extends out of the positioning groove 13.

[0038] When ejecting the workpiece 60 and nut 61, in the initial state, the elastic stress applied by the elastic member 30 drives the positioning post 20 upward, and the positioning part at the top of the positioning post 20 remains extended out of the positioning groove 13. When the workpiece 60 is placed, the workpiece 60 and nut 61 correspond to the extended positioning part, so that the positioning part can be inserted into the inner hole of the nut 61 of the workpiece 60 and nut 61, thereby achieving the positioning of the workpiece 60 and nut 61.

[0039] During the ejection process, the push rod presses downwards, allowing the elastic component 30 to be guided and compressed downwards within the positioning groove 13. Consequently, the elastic component 30 is less likely to skew under pressure. Simultaneously, the nut 61, which moves downwards with the positioning post 20, can also be guided downwards and disengaged by the positioning groove 13, preventing the nut 61 from swaying or falling off.

[0040] Of course, after the jacking action is completed, the elastic component 30 returns to its original position and guides the positioning post 20 upward. At this time, the detachment nut 61, which is positioned by the positioning part, can extend upward into the positioning groove 13, and the nut 61 can be removed by hand.

[0041] Furthermore, a first limiting step can be provided on the inner wall of the top of the positioning groove 13, and a second limiting step 23 can be provided on the outer surface of the positioning post 20. Under the action of the elastic member 30, the positioning post 20 moves upward. At this time, the second limiting step 23 can abut against the first limiting step, which restricts the movement stroke of the positioning post 20 and prevents the positioning post 20 from separating from the positioning groove 13.

[0042] Furthermore, to facilitate the installation of the positioning post 20 and the elastic component 30, the bottom end of the positioning groove 13 extends to the bottom surface of the tooling base 10. This allows both the positioning post 20 and the elastic component 30 to be inserted through the bottom end of the positioning groove 13, placing the second limiting step 23 below the first limiting step, thus achieving assembly. After assembly, a positioning screw 40 is connected to the bottom end of the positioning groove 13. After being screwed into the bottom end of the positioning groove 13, the positioning screw 40 can limit the elastic component 30 at its bottom end, preventing the elastic component 30 and the positioning post 20 from detaching from the bottom end and facilitating assembly.

[0043] Furthermore, the end face of the tooling base 10 is provided with a support step 12 and a support boss 11. The support boss 11 protrudes from the end of the support step 12, and the positioning component is located on the support boss 11. In this way, the end face of the workpiece 60 base can form a height difference, which can be adapted to the height difference of different positions of the workpiece 60. After clamping, the height of the workpiece 60 can be placed on the support boss 11, and the positioning part of the positioning component can position the nut 61 of the workpiece 60. The handle and other structures of the workpiece 60 can be placed on the support step 12, making the clamping structure more stable.

[0044] For those skilled in the art, various other corresponding changes and modifications can be made based on the technical solutions and concepts described above, and all such changes and modifications should fall within the protection scope of the claims of this utility model.

Claims

1. A nut extruding jig characterized by, The utility model relates to a positioning device for nut, which comprises a tool base, a positioning assembly and an ejector rod. The tool base is used for positioning workpiece. The positioning assembly comprises a positioning column and an elastic component. The top end of the positioning column is provided with a positioning part for penetrating into the inner hole of the nut of the workpiece. One end of the positioning column is connected to the elastic component, and one end of the elastic component is connected to the tool base.

2. The nut extruding jig according to claim 1, wherein The elastic component is used for providing an elastic stress for driving the positioning column to move upward.

3. The nut extruding jig according to claim 2, wherein The ejector rod is used for inserting into the nut and pressing the nut.

4. The nut extruding jig according to claim 1, wherein The ejector rod is provided with an ejector convex column and an ejector step.

5. The nut extruding jig according to any one of claims 1 to 4, characterized in that, The ejector convex column is convexly arranged on the bottom end surface of the ejector rod.

6. The nut extruding jig according to claim 5, wherein The outer surface of the bottom end of the ejector convex column is provided with a guide taper surface.

7. The nut extruding jig according to claim 5, wherein The outer diameter of the guide taper surface gradually decreases from top to bottom.

8. The nut extruding jig according to any one of claims 1 to 4, wherein The positioning part comprises a positioning convex column and a positioning step. The positioning convex column is convexly arranged on the top end surface of the positioning column. The positioning step is arranged around the outer periphery of the positioning convex column. The tool base is provided with a positioning groove. The top end of the positioning groove penetrates through the top end surface of the tool base. The positioning column and the elastic component are installed in the positioning groove. The elastic component provides an elastic stress for driving the positioning column to move upward so that the positioning part extends out of the positioning groove. The inner wall of the top end of the positioning groove is provided with a first limiting step. The outer surface of the positioning column is provided with a second limiting step. The second limiting step is used for limiting and abutting against the first limiting step when the positioning column moves upward. The bottom end of the positioning groove penetrates through the bottom end surface of the tool base. The bottom end of the positioning groove is connected with a positioning screw. The end surface of the tool base is provided with a support step and a support convex column. The support convex column is convexly arranged on the end of the support step. The positioning assembly is arranged on the support convex column.

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