Powder metallurgy green body overturning tool

Abstract

The utility model discloses a powder metallurgy green body overturning tool which comprises an overturning fixing plate, a first pressing plate, a second pressing plate, a first pressing plate and a second pressing plate. The first driving unit is connected to the first surface; the second driving unit is connected to the first surface; a height adjusting plate; the first conveying unit is arranged between the first driving unit and the second driving unit, the first conveying unit is connected to the height adjusting plate and can be adjusted, and the first conveying unit is driven by the first driving unit; the second conveying unit is arranged between the first driving unit and the second driving unit, the second conveying unit is connected to the height adjusting plate, the second conveying unit is driven by the second driving unit, and the second conveying unit and the first conveying unit are arranged in parallel; the baffle is used for blocking the green bodies, one end of the baffle is connected to the first surface, the other end of the baffle extends in the direction away from the first surface and penetrates through the gap between the first conveying unit and the second conveying unit, and the height adjusting plate is connected to the extending end of the baffle.

Description

Technical Field

[0001] This utility model relates to the field of powder metallurgy technology, specifically to a powder metallurgy green billet turning fixture, which is suitable for the turning process of powder metallurgy green billets. Background Technology

[0002] During the forming process of powder metallurgy parts, burrs are often present on the edges of the green blanks due to the characteristics of the process. Therefore, it is necessary to deburr both sides of the green blank after pressing. Generally, the green blank is conveyed to the brush fixing position and fixed by a fixing device. Then, the burrs on one side of the green blank are brushed off. After that, the green blank is flipped over by a flipping fixture and then conveyed to the next deburring station to brush off the edge burrs on the other side of the green blank.

[0003] However, most existing flipping fixtures are clamping structures, which use grippers to hold the green blank and then flip it, such as... Figure 1 As shown, due to the low strength of powder metallurgy green blanks, excessive clamping force of the grippers can cause cracks in the green blanks. For thin-walled and heavy green blanks, insufficient clamping force will not be able to hold the entire part, while excessive clamping force will cause cracks in the thin walls. In addition, for irregularly shaped green blanks, precise positioning to specially designed grippers is required during the transfer process to complete the clamping, which is currently difficult to implement. Utility Model Content

[0004] The purpose of this invention is to address the problems of existing clamping and flipping fixtures, which easily lead to cracks in the clamped green blanks in practical applications, and the difficulty in implementing the clamping of irregularly shaped green blanks due to the need for precise positioning. Therefore, a new powder metallurgy green blank flipping fixture is designed to solve the above problems.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0006] This utility model designs a powder metallurgy green billet turning fixture, which includes the following structure:

[0007] A flip-fixed plate having opposing first and second surfaces;

[0008] The first driving unit has one end connected to the first surface and the other end extending in a direction away from the first surface.

[0009] The second drive unit has one end connected to the first surface and the other end extending in a direction away from the first surface;

[0010] Height adjustment plate;

[0011] A first transmission unit is disposed between the first drive unit and the second drive unit. The first transmission unit is connected to the height adjustment plate and has a degree of freedom for height adjustment. The first transmission unit is driven by the first drive unit.

[0012] The second transmission unit is disposed between the first drive unit and the second drive unit. The second transmission unit is connected to the height adjustment plate and has the freedom to adjust the height direction. The second transmission unit is driven by the second drive unit and is arranged parallel to the first transmission unit.

[0013] And a baffle for blocking the green blank in the conveying direction, one end of the baffle is connected to the first surface, and the other end extends away from the first surface and passes through the gap between the first conveying unit and the second conveying unit, and the height adjustment plate is connected to the extended end of the baffle.

[0014] Furthermore, a powder metallurgy green billet turning fixture: the first driving unit includes the following:

[0015] The first belt fixing plate has one end connected to the first surface and the other end extending in a direction away from the first surface;

[0016] and a first drive device, which is disposed on the first belt fixing plate;

[0017] The first drive device drives the first transmission unit to operate via a first belt.

[0018] Furthermore, a powder metallurgy green billet turning fixture: the first conveying unit includes the following:

[0019] A first conveyor plate is connected to the height adjustment plate and is height-adjustable. The first conveyor plate is disposed between the first drive unit and the second drive unit.

[0020] A first conveyor shaft is rotatably mounted at both ends of the first conveyor plate, and the first conveyor shaft is driven by a first belt.

[0021] and a first conveyor belt, which is disposed on the first conveyor shaft.

[0022] Furthermore, a powder metallurgy green billet turning fixture: the second driving unit includes the following:

[0023] The second belt fixing plate has one end connected to the first surface and the other end extending in a direction away from the first surface;

[0024] And a second drive unit, which is mounted on the second belt fixing plate;

[0025] The second drive device drives the second transmission unit to operate via a second belt.

[0026] Furthermore, a powder metallurgy green billet turning fixture: the second conveying unit includes the following:

[0027] The second conveyor plate is connected to the height adjustment plate and is height-adjustable. The second conveyor plate is disposed between the first drive unit and the second drive unit.

[0028] The second conveyor shaft is rotatably mounted at both ends of the second conveyor plate, and the second conveyor shaft is driven by the second belt;

[0029] And a second conveyor belt, which is disposed on the second conveyor shaft.

[0030] Furthermore, a powder metallurgy green billet turning fixture: the first belt fixing plate and the second belt fixing plate have the same structure, which is set as an "L" shape.

[0031] Furthermore, a powder metallurgy green billet turning fixture: the height adjustment plate and the extended end of the baffle form a "T"-shaped connection.

[0032] Furthermore, a powder metallurgy green billet turning fixture includes a sponge wrapped around the baffle. This design prevents damage to the green billet from colliding with the baffle during transport.

[0033] Furthermore, a powder metallurgy green billet turning fixture: the height adjustment plate is provided with a first adjustment hole and a second adjustment hole in the height direction; the first conveying unit is movably connected to the first adjustment hole, and the second conveying unit is movably connected to the second adjustment hole.

[0034] Furthermore, a powder metallurgy green billet turning tool: both the first adjustment hole and the second adjustment hole are set as waist-shaped holes.

[0035] The beneficial effects of this utility model are:

[0036] This invention relates to a flipping fixture that optimizes the flipping method by using a non-clamping flipping method. This avoids crack defects during the green blank flipping process and enables flipping of various types of green blanks. Even for irregularly shaped green blanks, precise positioning during the transfer process is not required, making implementation simple.

[0037] Currently, the tooling used for deburring powder metallurgy billets and turning them over is a clamping structure. This type of clamping turning tooling cannot effectively complete the clamping and turning action for thin-walled and heavy billet parts and irregularly shaped parts. However, the turning action designed in this utility model is highly applicable and can be used for almost all powder metallurgy products. The original clamping method requires changing the clamps according to the product size, which is complicated to operate. This utility model only needs to adjust the height between the first and second conveyor belts to be applicable to almost all powder metallurgy billet products. Attached Figure Description

[0038] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 This is a schematic diagram of the structure of an existing clamping and flipping tool;

[0040] Figure 2 A schematic diagram of the structure of a powder metallurgy green billet turning tool designed for Embodiment 1 of this utility model;

[0041] Figure 3 This is an assembly diagram of the flip-fixed plate and baffle, height adjustment plate, first belt fixing plate and first conveyor unit in Embodiment 1 of this utility model.

[0042] The markings in the diagram are: 1-flipping fixing plate, 2-first drive unit, 3-second drive unit, 4-height adjustment plate, 5-first conveyor unit, 6-second conveyor unit, 7-baffle, 8-green blank, 11-first surface, 12-second surface, 21-first belt fixing plate, 22-first drive device, 23-first belt, 31-second belt fixing plate, 32-second drive device, 33-second belt, 41-first adjustment hole, 42-second adjustment hole, 51-first conveyor plate, 52-first conveyor shaft, 53-first conveyor belt, 61-second conveyor plate, 62-second conveyor shaft, 63-second conveyor belt. Detailed Implementation

[0043] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0044] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," "right," "top," and "bottom," etc., indicating orientation or positional relationships, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," etc., are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of this utility model described herein can be implemented in orders other than those illustrated or described herein.

[0045] Example 1

[0046] like Figures 2-3 As shown, this embodiment 1 designs a powder metallurgy green billet turning fixture, which includes the following structure:

[0047] The flip-fixed plate 1 has a first surface 11 and a second surface 12 facing each other;

[0048] The first drive unit 2 includes a first belt fixing plate 21 and a first drive device 22. One end of the first belt fixing plate 21 is connected to the first surface 11, and the other end extends in a direction away from the first surface 11. The first drive device 22 (which may be configured as a drive motor) is disposed on the first belt fixing plate 21, and the first belt 23 is connected to the first drive device 22.

[0049] The second drive unit 3 includes a second belt fixing plate 31 and a second drive device 32. One end of the second belt fixing plate 31 is connected to the first surface 11, and the other end extends in a direction away from the first surface 11. The second drive device 32 (which may be configured as a drive motor) is disposed on the second belt fixing plate 31, and the second belt 33 is connected to the second drive device 32. The first belt fixing plate 21 and the second belt fixing plate 31 have the same structure, both of which are configured as "L" shaped structures.

[0050] The height adjustment plate 4 has a first adjustment hole 41 and a second adjustment hole 42 in the height direction, and the first adjustment hole 41 and the second adjustment hole 42 are set as waist-shaped holes with the same structure.

[0051] The first conveying unit 5 includes a first conveying plate 51, a first conveying shaft 52, and a first conveyor belt 53. The first conveying plate 51 is slidably connected to the first adjusting hole 41 (i.e., it has the freedom of height adjustment). The first conveying plate 51 is also located between the first belt fixing plate 21 and the second belt fixing plate 31. The first conveying shaft 52 is rotatably disposed at both ends of the first conveying plate 51. The first conveyor belt 53 is disposed on the first conveying shaft 52. The first belt 23 is respectively connected to the first driving device 22 and the first conveying shaft 52. The first driving device 22 drives the first conveying shaft 52 to rotate through the first belt 23.

[0052] The second conveying unit 6 includes a second conveying plate 61, a second conveying shaft 62, and a second conveyor belt 63. The second conveying plate 61 is slidably connected to the second adjusting hole 42 (i.e., it has the freedom of height adjustment). The second conveying plate 61 is also located between the first belt fixing plate 21 and the second belt fixing plate 31. The second conveying plate 61 is arranged parallel to the first conveying plate 51. The second conveying shaft 62 is rotatably disposed at both ends of the second conveying plate 61. The second conveyor belt 63 is disposed on the second conveying shaft 62. The second belt 33 is respectively connected to the second driving device 32 and the second conveying shaft 62. The second driving device 32 drives the second conveying shaft 62 to rotate through the second belt 33.

[0053] And a baffle 7, which is used to block the green blank 8 in the conveying direction. One end of the baffle 7 is connected to the first surface 11, and the other end extends away from the first surface 11 and passes through the gap between the first conveying plate 51 and the second conveying plate 61. The height adjustment plate 4 is connected to the extended end of the baffle 7 and forms a "T"-shaped connection structure with it. The baffle 7 is also wrapped with a sponge.

[0054] In actual use:

[0055] First, after the green blank 8 has completed the deburring process on one side, it is conveyed by the external conveyor belt to the flipping fixture of Embodiment 1 (specifically, to the second conveyor belt 63 of the flipping fixture). The second drive device 32 is adjusted to make the conveying speed of the second conveyor belt 63 consistent with the speed of the external conveyor belt, thereby ensuring that the green blank is smoothly transferred from the external conveyor belt to the second conveyor belt 63, and then the second conveyor belt 63 continues to convey it to the stop block 7 and stops.

[0056] Secondly, the entire flipping fixture can be flipped from the second surface 12 of the flipping fixing plate 1. At this time, the green blank is flipped, and the first conveyor belt 53 and the second conveyor belt 63 are reversed. The green blank falls onto the first conveyor belt 53 and is then conveyed out of the flipping fixture by the first conveyor belt 53. Then it enters the next deburring station for deburring processing on the other side.

[0057] If the height of the blank is large during use, the distance between the first conveyor plate 51 and the second conveyor plate 61 can be adjusted to accommodate blank parts of different sizes between the first conveyor plate 51 and the second conveyor plate 61. Furthermore, the flipping fixture of this embodiment 1 has no restrictions on the structural form of the blank parts. Even for parts with irregular structures, it is only necessary to convey them between the first conveyor belt 53 and the second conveyor belt 63 to achieve flipping. Precise positioning is not required during the conveying process, making it easy to implement.

[0058] In summary, the flipping fixture of this embodiment 1 achieves the flipping of the green blank by reversing the first conveyor belt 53 and the second conveyor belt 63. There is no need to clamp the green blank, which will not cause cracks in the green blank due to clamping. At the same time, there are no restrictions on the structure of the green blank to be flipped. Even for the flipping operation of irregular parts, there is no need to accurately position its conveying process. It is easy to implement and has stronger applicability.

[0059] The above-described preferred embodiments of this utility model are for illustrative purposes only and are not intended to limit the scope of this utility model. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.

Claims

1. A powder metallurgy green billet turning fixture, characterized in that, The flipping fixture includes the following: A flip-fixed plate (1) has a first surface (11) and a second surface (12) opposite each other. The first driving unit (2) has one end connected to the first surface (11) and the other end extending in a direction away from the first surface (11); The second driving unit (3) has one end connected to the first surface (11) and the other end extending in a direction away from the first surface (11); Height adjustment plate (4); The first transmission unit (5) is disposed between the first drive unit (2) and the second drive unit (3). The first transmission unit (5) is connected to the height adjustment plate (4) and has the freedom of height adjustment. The first transmission unit (5) is driven by the first drive unit (2). The second transmission unit (6) is disposed between the first drive unit (2) and the second drive unit (3). The second transmission unit (6) is connected to the height adjustment plate (4) and has the freedom of height adjustment. The second transmission unit (6) is driven by the second drive unit (3). The second transmission unit (6) is arranged in parallel with the first transmission unit (5). And a baffle (7) for blocking the green blank (8) in the conveying direction, one end of the baffle (7) is connected to the first surface (11), and the other end extends away from the first surface (11) and passes through the gap between the first conveying unit (5) and the second conveying unit (6), and the height adjustment plate (4) is connected to the extended end of the baffle (7).

2. The powder metallurgy green billet turning fixture according to claim 1, characterized in that, The first driving unit (2) includes the following: The first belt fixing plate (21) has one end connected to the first surface (11) and the other end extending in a direction away from the first surface (11); and a first drive unit (22), which is mounted on a first belt fixing plate (21); The first drive device (22) drives the first transmission unit (5) to operate via the first belt (23).

3. A powder metallurgy green billet turning fixture according to claim 1 or 2, characterized in that, The first transmission unit (5) includes the following: The first conveyor plate (51) is connected to the height adjustment plate (4) and can be height adjusted. The first conveyor plate (51) is disposed between the first drive unit (2) and the second drive unit (3). The first transmission shaft (52) is rotatably disposed at both ends of the first transmission plate (51), and the first transmission shaft (52) is driven by the first belt (23); and a first conveyor belt (53), which is disposed on the first conveyor shaft (52).

4. The powder metallurgy green billet turning fixture according to claim 1, characterized in that, The second driving unit (3) includes the following: The second belt fixing plate (31) has one end connected to the first surface (11) and the other end extending in a direction away from the first surface (11); and a second drive unit (32), which is mounted on the second belt fixing plate (31); The second drive device (32) drives the second transmission unit (6) to operate via the second belt (33).

5. A powder metallurgy green billet turning fixture according to claim 1 or 4, characterized in that, The second transmission unit (6) includes the following: The second conveyor plate (61) is connected to the height adjustment plate (4) and can be height adjusted. The second conveyor plate (61) is disposed between the first drive unit (2) and the second drive unit (3). The second transmission shaft (62) is rotatably disposed at both ends of the second transmission plate (61), and the second transmission shaft (62) is driven by the second belt (33); And a second conveyor belt (63), which is disposed on the second conveyor shaft (62).

6. A powder metallurgy green billet turning fixture according to claim 2 or 4, characterized in that, The first belt fixing plate (21) and the second belt fixing plate (31) have the same structure, which is set as an "L" shaped structure.

7. The powder metallurgy green billet turning fixture according to claim 1, characterized in that, The height adjustment plate (4) and the baffle (7) form a "T"-shaped connection.

8. The powder metallurgy green billet turning fixture according to claim 1, characterized in that, The baffle (7) is also covered with a sponge.

9. The powder metallurgy green billet turning fixture according to claim 1, characterized in that, The height adjustment plate (4) is provided with a first adjustment hole (41) and a second adjustment hole (42) in the height direction. The first transmission unit (5) is movably connected to the first adjustment hole (41), and the second transmission unit (6) is movably connected to the second adjustment hole (42).

10. A powder metallurgy green billet turning fixture according to claim 9, characterized in that, Both the first adjustment hole (41) and the second adjustment hole (42) are set as waist-shaped holes.

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