Powder metallurgy gear shaping jig

Abstract

The utility model discloses a powder metallurgy gear shaping jig which comprises a machine frame body, CCD equipment arranged on the machine frame body, a shaping jig sliding on the machine frame body and driving equipment for driving the shaping jig to move. The shaping jig comprises an upper die and a lower die, the upper die comprises a pressing plate and a first driving element for driving the pressing plate to move upwards / downwards, the lower die comprises a jig plate and a bottom plate, a plurality of elastic elements are arranged between the bottom plate and the jig plate, the jig plate is used for placing gear parts, and the elastic elements are arranged on the bottom plate. When the first driving element drives the pressing plate to move downwards, the gear part can be pressed into the jig plate to be shaped. The reshaping jig is used for quickly reaming a shaft hole, only manual feeding is needed, the reshaping jig is automatically moved to the position below a CCD for size combination after reaming is completed, and the production period is greatly shortened.

Description

Technical Field

[0001] This utility model belongs to the field of motor manufacturing technology, specifically relating to a powder metallurgy gear shaping fixture. Background Technology

[0002] Powder metallurgy is a process technology that uses metal powders (or mixtures of metal and non-metal powders) as raw materials, followed by forming and sintering, to manufacture metallic materials, composite materials, and various types of products. Powder metallurgy shares similarities with ceramic production, both belonging to powder sintering technology; therefore, a range of new powder metallurgy technologies can also be applied to the preparation of ceramic materials. Due to its advantages, powder metallurgy has become a key to solving new materials problems and plays a crucial role in the development of new materials.

[0003] Due to the physical properties of metals, deformation occurs in various dimensions during the sintering process. For dimensions that require precise assembly, this deformation can severely affect the assembly, necessitating secondary processing. For example, in the case of metal gears inside a motor, the gear's shaft hole needs to fit tightly with the shaft. However, the sintered shaft hole often shrinks inward, making it smaller and preventing the shaft from being assembled. Therefore, a secondary enlargement process on a lathe is required. However, this processing method is slow, time-consuming, and affects the production cycle. Utility Model Content

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A powder metallurgy gear shaping fixture includes a frame body, a CCD device mounted on the frame body, and a shaping fixture that slides on the frame body. It also includes a drive device for moving the shaping fixture.

[0006] The shaping fixture includes an upper mold and a lower mold. The upper mold includes a pressure plate and a first driving element that drives the pressure plate to move upward / downward. The lower mold includes a fixture plate and a base plate. Several elastic elements are provided between the base plate and the fixture plate. The fixture plate is used to place gear parts. When the first driving element drives the pressure plate to move downward, the gear parts can be pressed into the fixture plate for shaping.

[0007] Furthermore, the lower mold also includes a slider and several guide posts. The slider is located at the bottom of the base plate, and the base plate is fixedly connected to the frame body through the slider. The guide posts are fixedly connected to the base plate, the fixture plate slides on the guide posts, and the elastic element is sleeved on the guide posts.

[0008] Furthermore, the fixture plate is also provided with a number of equal-height screws, the fixed end of which is connected to the base plate and the movable end is connected to the fixture plate.

[0009] Furthermore, the fixture plate is provided with a contouring groove that matches the gear part, and a shaping column is provided in the middle of the contouring groove. The shaping column is used to shape the shaft hole of the gear part. The shaping column is fixedly connected to the base plate and slidably connected to the contouring groove.

[0010] Furthermore, the driving device includes a second driving element and a lead screw assembly, the lead screw assembly being fixedly connected to the base plate, and the second driving element driving the base plate to slide on the frame body through the lead screw assembly.

[0011] Furthermore, the elastic element is a spring.

[0012] Furthermore, the first driving element is a cylinder, and the second driving element is a motor.

[0013] The beneficial effects of this utility model are:

[0014] This invention requires only manual placement of the gear part into the contour hole. The hydraulic equipment automatically presses down to press the shaping column into the gear shaft hole for dimensional shaping. After the hydraulic process is complete, the spring can reset the fixture plate, pushing the gear out of the contour groove and detaching it from the shaping column. Then, it is moved under the CCD device for dimensional conformity testing. If the dimensions are not up to standard, it can return to the hydraulic part for reshaping. Once the dimensions are correct, it can be removed. This requires very little manual operation, avoiding boring on a lathe and significantly accelerating the production cycle.

[0015] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the shaping fixture of this utility model;

[0018] Figure 3 This is a schematic diagram of the lower mold structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the fixture plate structure of this utility model;

[0020] Figure 5 This is a schematic diagram illustrating the shaping and pressing principle of this utility model;

[0021] Figure 6 This is a schematic diagram of the drive device structure of this utility model;

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Frame body; 2. Shaping fixture; 21. Upper mold; 211. First drive element; 212. Pressure plate; 22. Lower mold; 221. Fixture plate; 221-1. Contouring groove; 221-2. Shaping column; 222. Elastic element; 223. Base plate; 224. Slider; 225. Guide column; 226. Height equalization screw; 3. CCD device; 4. Drive device; 41. Second drive element; 42. Lead screw assembly. Detailed Implementation

[0024] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention. Specific implementation examples:

[0026] like Figures 1 to 6 The powder metallurgy gear shaping fixture shown includes a frame body 1, a CCD device 3 mounted on the frame body 1, and a shaping fixture 2 sliding on the frame body 1. It also includes a drive device 4 for moving the shaping fixture 2. Specifically, the drive device 4 includes a second drive element 41 and a lead screw assembly 42. The lead screw assembly 42 is fixedly connected to a base plate 223, and the second drive element 41 drives the base plate 223 to slide on the frame body 1 via the lead screw assembly 42. Specifically, the second drive element 41 is a motor.

[0027] The shaping fixture 2 includes an upper mold 21 and a lower mold 22. The upper mold 21 includes a pressure plate 212 and a first driving element 211 that drives the pressure plate 212 to move upwards / downwards. The lower mold 22 includes a fixture plate 221 and a base plate 223. A plurality of elastic elements 222 are provided between the base plate 223 and the fixture plate 221. The fixture plate 221 is used to place gear parts. When the first driving element 211 drives the pressure plate 212 to move downwards, the gear parts can be pressed into the fixture plate 221 for shaping. Preferably, the first driving element 211 is a cylinder.

[0028] Specifically, the lower mold 22 further includes a slider 224 and several guide posts 225. The slider 224 is located at the bottom of the base plate 223, and the base plate 223 is fixedly connected to the frame body 1 via the slider 224. The guide posts 225 are fixedly connected to the base plate 223, and the fixture plate 221 slides on the guide posts 225. The elastic element 222 is sleeved on the guide posts 225. Preferably, the elastic element 222 is a spring. Furthermore, the fixture plate 221 is also provided with several equal-height screws 226. The fixed end of the equal-height screw 226 is connected to the base plate 223, and the moving end is connected to the fixture plate 221. It can be understood that the jig plate 221 is provided with a contouring groove 221-1 that matches the gear part, and a shaping post 221-2 is provided in the middle of the contouring groove 221-1. The shaping post 221-2 is used to shape the shaft hole of the gear part. The shaping post 221-2 is fixedly connected to the base plate 223 and slidably connected to the contouring groove 221-1.

[0029] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A powder metallurgy gear shaping fixture, comprising a frame body (1), a CCD device (3) disposed on the frame body (1), and a shaping fixture (2) sliding on the frame body (1), and further comprising a driving device (4) for driving the shaping fixture (2) to move. The shaping fixture (2) includes an upper mold (21) and a lower mold (22). The upper mold (21) includes a pressure plate (212) and a first driving element (211) that drives the pressure plate (212) to move upward / downward. The lower mold (22) includes a fixture plate (221) and a base plate (223). A plurality of elastic elements (222) are provided between the base plate (223) and the fixture plate (221). The fixture plate (221) is used to place gear parts. When the first driving element (211) drives the pressure plate (212) to move downward, the gear parts can be pressed into the fixture plate (221) for shaping.

2. The powder metallurgy gear shaping fixture according to claim 1, characterized in that: The lower mold (22) also includes a slider (224) and several guide posts (225). The slider (224) is located at the bottom of the base plate (223). The base plate (223) is fixedly connected to the frame body (1) through the slider (224). The guide posts (225) are fixedly connected to the base plate (223). The jig plate (221) slides on the guide posts (225). The elastic element (222) is sleeved on the guide posts (225).

3. The powder metallurgy gear shaping fixture according to claim 1, characterized in that: The fixture plate (221) is also provided with a number of equal height screws (226). The fixed end of the equal height screw (226) is connected to the base plate (223), and the moving end is connected to the fixture plate (221).

4. The powder metallurgy gear shaping fixture according to claim 1, characterized in that: The jig plate (221) is provided with a contouring groove (221-1) that matches the gear parts. A shaping column (221-2) is provided in the middle of the contouring groove (221-1). The shaping column (221-2) is used to shape the shaft hole of the gear parts. The shaping column (221-2) is fixedly connected to the base plate (223) and slidably connected to the contouring groove (221-1).

5. A powder metallurgy gear shaping fixture according to claim 1, characterized in that: The drive device (4) includes a second drive element (41) and a lead screw assembly (42). The lead screw assembly (42) is fixedly connected to the base plate (223). The second drive element (41) drives the base plate (223) to slide on the frame body (1) through the lead screw assembly (42).

6. The powder metallurgy gear shaping fixture according to claim 1, characterized in that: The elastic element (222) is a spring.

7. The powder metallurgy gear shaping fixture according to claim 1, characterized in that: The first driving element (211) is a cylinder, and the second driving element (41) is a motor.

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