Overall sizing die for sealing rod

Abstract

The utility model relates to the technical field of powder metallurgy part shaping, and discloses a sealing rod integral shaping die which is used for shaping a sealing rod. The sizing die comprises an upper pressing block and a lower pressing block; the sealing rod is of an integrated structure and sequentially comprises a rod tail, a rod body and a rod head from left to right. The sizing die further comprises a push block. The upper pressing block and the lower pressing block are both of an integrated structure. The pushing block is of an integrated structure and comprises a pushing part located on the upper side and a limiting part below the pushing part. According to the shaping die, in the shaping process, one set of shaping die can be adopted to complete shaping of coaxiality and length, multi-step shaping is integrated into one working procedure, manpower and equipment occupation is reduced, and labor cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of powder metallurgy parts shaping, in particular to an integral shaping die for a sealing rod. Background Art

[0002] The sealing rod is a part produced using powder metallurgy technology. After sintering, the product will have a certain degree of bending deformation, which makes its length inconsistent with the standard required by the product. It needs to be reshaped to correct the coaxiality and length in order to obtain a product that meets the size standards.

[0003] The current shaping method is to first shape the coaxiality of the product obtained after sintering, and then shape the length. However, this process has the following disadvantages: multiple shaping steps, labor and equipment are occupied, and production costs are high.

[0004] Therefore, there is an urgent need for an integral shaping die for the sealing rod to solve the above technical problems. Utility Model Content

[0005] The purpose of the utility model is to overcome the existing technical problems and provide a sealing rod integral shaping die.

[0006] In order to achieve the above-mentioned purpose, the present invention is implemented according to the following technical solutions:

[0007] An integral shaping die for the sealing rod, the shaping die being used to shape the sealing rod; the shaping die comprising an upper pressing block and a lower pressing block; the sealing rod being an integral structure, comprising, from left to right, a rod end, a rod body, and a rod head; the left end face of the rod end and the right end face of the rod head being circular, and the diameter of the left end face of the rod end being smaller than the diameter of the right end face of the rod head; a plurality of hollow holes being distributed around the right end face of the rod head; the shaping die also comprising a push block;

[0008] The upper pressing block and the lower pressing block are both of an integrated structure;

[0009] The lower end surface of the upper pressing block is a trapezoidal guide protrusion, and the upper end surface of the lower pressing block is provided with a guide groove matching the guide protrusion; a lower shaping groove is provided on the left side of the upper end surface of the guide groove, and a stopper is provided on the left side of the lower shaping groove, and the horizontal rightward projection of the stopper matches the left end surface of the rod tail; an upper shaping groove is provided on the left side of the lower end surface of the guide protrusion;

[0010] The push block is an integrated structure, including a push portion located on the upper side and a limit portion below the push portion; the left side of the push portion is a rectangular surface, and the right side of the push portion is composed of a first wedge surface, a vertical surface, and a second wedge surface from top to bottom; the limit portion is L-shaped;

[0011] An upper guide groove is provided on the right side of the upper shaping groove, and a lower guide groove is provided on the right side of the lower shaping groove; the push block is provided in the lower guide groove;

[0012] When the lower end surface of the guide protrusion contacts the bottom of the guide groove, the push block moves leftward under the guidance of the upper and lower guide grooves; the cavity surrounded by the upper shaping groove, the lower shaping groove and the push block matches the sealing rod.

[0013] Specifically, the length of the cavity surrounded by the upper shaping groove, the lower shaping groove and the push block, the verticality of the left end face, the verticality of the right end face and the coaxiality of the cavity all match the component standards of the sealing rod.

[0014] Preferably, the left side of the upper guide groove is a vertically arranged upper side wall, and the right side of the upper guide groove is a first inclined surface with the same inclination angle as the first wedge surface; the left side of the lower guide groove is a vertically arranged lower side wall, and the right side of the lower guide groove has a second inclined surface, and the second inclined surface has the same inclination angle as the second wedge surface; the bottom of the lower guide groove has a volume expansion groove, and the width of the opening at the upper end of the volume expansion groove is smaller than the width of the bottom of the limiting portion and larger than the width of the top of the limiting portion.

[0015] Specifically, when the lower end surface of the guide protrusion contacts the bottom of the guide groove, the first wedge surface contacts the first inclined surface, the second wedge surface contacts the second inclined surface, and the limiting portion is located in the expansion groove.

[0016] Preferably, it further comprises a rotating shaft; a plurality of limiting protrusions are provided on the left end of the rotating shaft; the number and shape of the limiting protrusions match the hollow hole of the rod head; the pushing portion is provided with a rotating shaft hole;

[0017] The right side of the upper guide groove has an upper semicircular groove, and the right side of the lower guide groove has a lower semicircular groove;

[0018] The left end of the rotating shaft passes through the rotating shaft hole and extends into the cavity.

[0019] Specifically, when the lower end surface of the guide protrusion contacts the bottom of the guide groove, the upper semicircular groove and the lower semicircular groove form a circular groove; the inner diameter of the circular groove is larger than the outer diameter of the shaft. The inner diameter of the shaft hole matches the outer diameter of the shaft.

[0020] Preferably, a handle is provided at the right end of the rotating shaft.

[0021] Specifically, the handle is cylindrical and has anti-slip stripes on it.

[0022] The specific size design of the upper shaping groove and the lower shaping groove of the utility model is designed according to the size standard of the sealing rod to be shaped. After the upper shaping groove and the lower shaping groove are shaped, a sealing rod with qualified size can be obtained.

[0023] Components not limited in the present invention all adopt conventional means in the field. Those skilled in the art can select their models and installation methods according to actual usage requirements and clearly understand how to install and control them. They will not be described in detail here.

[0024] The utility model achieves the following beneficial effects:

[0025] The utility model has a simple structure and is easy to operate. During the shaping process, the shaping die of the utility model can use a set of shaping dies to complete the coaxiality and length shaping, integrate multiple shaping steps into one process, reduce labor and equipment occupation, and reduce labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the three-dimensional structure of Example 1 of the present utility model;

[0027] Figure 2 for Figure 1 A schematic diagram of a three-dimensional structure from the left side perspective;

[0028] Figure 3 for Figure 1 A schematic diagram of a three-dimensional structure from the right side perspective;

[0029] Figure 4 for Figure 1 A schematic diagram of the three-dimensional structure of the upper pressure block from an upward perspective;

[0030] Figure 5 for Figure 1 Schematic diagram of the three-dimensional structure from a top-down perspective after removing the upper pressing block;

[0031] Figure 6 for Figure 5 Schematic diagram of the three-dimensional structure of the middle and lower pressing blocks;

[0032] Figure 7 This is a schematic diagram of the assembly of the sealing rod, push block, and rotating shaft of Example 1 of the present utility model;

[0033] Figure 8 This is a schematic diagram of the assembly of the push block and the rotating shaft of Example 1 of the present utility model;

[0034] Figure 9 This is a three-dimensional schematic diagram of a push block according to Example 1 of the present utility model;

[0035] Figure 10 This is a schematic diagram of the three-dimensional structure of the rotating shaft of Example 1 of the present utility model;

[0036] Figure 11 This is a schematic diagram of the state of the upper pressing block and the lower pressing block in the embodiment 1 of the utility model after the press is pressurized;

[0037] Figure 12 This is a schematic diagram of the state of the upper pressing block and the lower pressing block in Example 1 of the utility model after the pressure of the press is released.

[0038] In the figure: 1. upper pressure block; 2. lower pressure block; 3. sealing rod; 4. rod tail; 5. rod body; 6. rod head; 7. hollow hole; 8. push block; 9. guide protrusion; 10. guide groove; 11. lower shaping groove; 12. stop block; 13. upper shaping groove; 14. pushing part; 15. limiting part; 16. first wedge-shaped surface; 17. second wedge-shaped surface; 18. upper guide groove; 19. lower guide groove; 20. first inclined surface; 21. second inclined surface; 22. volume expansion groove; 23. rotating shaft; 24. limiting protrusion; 25. rotating shaft hole; 26. upper semicircular groove; 27. lower semicircular groove; 28. handle. DETAILED DESCRIPTION

[0039] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. The schematic embodiments and descriptions of the present invention are used to explain the present invention but are not intended to limit the present invention.

[0040] Example 1

[0041] like Figures 1 to 10 As shown, the sealing rod integral shaping mold is used to shape the sealing rod; the shaping mold includes an upper pressing block 1 and a lower pressing block 2; the sealing rod 3 is an integrated structure, and from left to right, it comprises a rod tail 4, a rod body 5, and a rod head 6; the left end surface of the rod tail and the right end surface of the rod head are both circular, and the diameter of the left end surface of the rod tail is smaller than the diameter of the right end surface of the rod head; three hollow holes 7 are distributed around the right end surface of the rod head; the shaping mold also includes a push block 8;

[0042] The upper pressing block and the lower pressing block are both of an integrated structure;

[0043] The lower end face of the upper pressing block is a trapezoidal guide protrusion 9, and the upper end face of the lower pressing block is provided with a guide groove 10 that matches the guide protrusion; a lower shaping groove 11 is provided on the left side of the upper end face of the guide groove, and a stopper 12 is provided on the left side of the lower shaping groove, and the horizontal rightward projection of the stopper matches the left end face of the rod tail; an upper shaping groove 13 is provided on the left side of the lower end face of the guide protrusion;

[0044] The push block is an integrated structure, including a push portion 14 located on the upper side and a limit portion 15 below the push portion. The left side of the push portion is a rectangular surface, and the right side of the push portion is composed of a first wedge surface 16, a vertical surface, and a second wedge surface 17 from top to bottom. The limit portion is L-shaped.

[0045] An upper guide groove 18 is provided on the right side of the upper shaping groove, and a lower guide groove 19 is provided on the right side of the lower shaping groove; the push block is provided in the lower guide groove;

[0046] When the lower end surface of the guide protrusion contacts the bottom of the guide groove, the push block moves leftward under the guidance of the upper and lower guide grooves; the cavity surrounded by the upper shaping groove, the lower shaping groove and the push block matches the sealing rod.

[0047] The left side of the upper guide groove is a vertically arranged upper side wall, and the right side of the upper guide groove is a first inclined surface 20 with the same inclination angle as the first wedge surface; the left side of the lower guide groove is a vertically arranged lower side wall, and the right side of the lower guide groove has a second inclined surface 21, and the second inclined surface has the same inclination angle as the second wedge surface; the bottom of the lower guide groove has a volume expansion groove 22, and the width of the opening at the upper end of the volume expansion groove is smaller than the width of the bottom of the limit portion and larger than the width of the top of the limit portion.

[0048] When the lower end surface of the guide protrusion contacts the bottom of the guide groove, the first wedge surface contacts the first inclined surface, the second wedge surface contacts the second inclined surface, and the limiting portion is located in the expansion groove.

[0049] It also includes a rotating shaft 23; three limiting protrusions 24 are provided at the left end of the rotating shaft; the number and shape of the limiting protrusions match the hollow hole of the rod head; the pushing portion is provided with a rotating shaft hole 25;

[0050] An upper semicircular groove 26 is provided on the right side of the upper guide groove, and a lower semicircular groove 27 is provided on the right side of the lower guide groove;

[0051] The left end of the rotating shaft passes through the rotating shaft hole and extends into the cavity.

[0052] When the lower end surface of the guide protrusion contacts the bottom of the guide groove, the upper semicircular groove and the lower semicircular groove form a circular groove; the inner diameter of the circular groove is larger than the outer diameter of the shaft. The inner diameter of the shaft hole matches the outer diameter of the shaft.

[0053] A handle 28 is provided at the right end of the rotating shaft. The handle is cylindrical and has anti-slip stripes.

[0054] Working principle:

[0055] When using this embodiment, the upper and lower pressing blocks are installed on the press (the installation here can be done using existing technology and will not be described further here), and the position of the upper pressing block is aligned with the lower pressing block; then the lower pressing block and the push block are assembled (the limit part of the push block is inserted from the front end face or the rear end face of the lower pressing block into the volume release groove until the push block is installed in the correct position), the rotating shaft is inserted into the push block, and the rod head of the sealing rod to be shaped is aligned with the left end of the rotating shaft, so that the limit protrusion is inserted into the corresponding hollow hole, and the sealing rod is placed in the lower shaping groove. At this point, the installation is complete and the shaping can be carried out.

[0056] like Figure 11 As shown, under the action of the press, the upper pressing block presses downward; during the pressing process, the upper and lower pressing blocks squeeze the push block during the process of closing the mold, so that the push block moves to the left under the pushing action of the first and second inclined surfaces. After the upper and lower pressing blocks are closed, the upper and lower pressing blocks press the coaxiality of the product shape and squeeze the push block to extrude the product length.

[0057] like Figure 12 As shown, after the press is depressurized, the upper pressure block is loosened upwards and the push block is loosened to the right. At this time, the rotating shaft is rotated to rotate the sealing rod to be shaped; then the press is controlled to press down for shaping.

[0058] Repeat the above process 6 to 8 times to complete the shaping, and the outer circle coaxiality and length of the sealing rod are shaped to meet the requirements.

[0059] The technical solution of the present invention is not limited to the above-mentioned specific embodiments. Any technical deformation made according to the technical solution of the present invention falls within the protection scope of the present invention.

Claims

1. A sealing rod integral shaping die, which is used to shape the sealing rod; the shaping die includes an upper pressing block and a lower pressing block; the sealing rod is an integrated structure, comprising, from left to right, a rod end, a rod body, and a rod head; the left end surface of the rod end and the right end surface of the rod head are both circular, and the diameter of the left end surface of the rod end is smaller than the diameter of the right end surface of the rod head; a plurality of hollow holes are distributed around the right end surface of the rod head; the characteristics are: The shaping die also includes a push block; The upper pressing block and the lower pressing block are both of an integrated structure; The lower end surface of the upper pressing block is a trapezoidal guide protrusion, and the upper end surface of the lower pressing block is provided with a guide groove matching the guide protrusion; a lower shaping groove is provided on the left side of the upper end surface of the guide groove, and a stopper is provided on the left side of the lower shaping groove, and the horizontal rightward projection of the stopper matches the left end surface of the rod tail; an upper shaping groove is provided on the left side of the lower end surface of the guide protrusion; The push block is an integrated structure, including a push portion located on the upper side and a limit portion below the push portion; the left side of the push portion is a rectangular surface, and the right side of the push portion is composed of a first wedge surface, a vertical surface, and a second wedge surface from top to bottom; the limit portion is L-shaped; An upper guide groove is provided on the right side of the upper shaping groove, and a lower guide groove is provided on the right side of the lower shaping groove; the push block is provided in the lower guide groove; When the lower end surface of the guide protrusion contacts the bottom of the guide groove, the push block moves leftward under the guidance of the upper and lower guide grooves; the cavity surrounded by the upper shaping groove, the lower shaping groove and the push block matches the sealing rod.

2. The sealing rod integral shaping die according to claim 1, characterized in that: The left side of the upper guide groove is a vertically arranged upper side wall, and the right side of the upper guide groove is a first inclined surface with the same inclination angle as the first wedge surface; the left side of the lower guide groove is a vertically arranged lower side wall, and the right side of the lower guide groove has a second inclined surface, and the second inclined surface has the same inclination angle as the second wedge surface; the bottom of the lower guide groove has a volume expansion groove, and the width of the opening at the upper end of the volume expansion groove is smaller than the width of the bottom of the limiting portion and larger than the width of the top of the limiting portion.

3. The sealing rod integral shaping die according to claim 2, characterized in that: It also includes a rotating shaft; a plurality of limiting protrusions are provided at the left end of the rotating shaft; the number and shape of the limiting protrusions match the hollow hole of the rod head; the pushing portion is provided with a rotating shaft hole; The right side of the upper guide groove has an upper semicircular groove, and the right side of the lower guide groove has a lower semicircular groove; The left end of the rotating shaft passes through the rotating shaft hole and extends into the cavity.

4. The sealing rod integral shaping die according to claim 3, characterized in that: A handle is provided at the right end of the rotating shaft.

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