Plane grinding machine for powder metallurgy part machining
By designing a plane grinder for processing powder metallurgy parts including a grinding mechanism and a pressing mechanism, the problems of high-precision plane grinding efficiency and high labor cost in the processing of powder metallurgy parts in the prior art are solved, and an efficient and precise grinding process is achieved.
Patent Information
- Application Number
- CN202422201747.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-09-09
AI Technical Summary
In the prior art, the grinding efficiency of high-precision planes during the processing of powder metallurgy parts is low, and the labor cost is high, making it difficult to meet the requirements of high-precision.
A plane grinder for processing powder metallurgy is designed, including a grinding mechanism and a pressing mechanism. It uses the relative rotation of multiple grinding rollers and the downforce of the pressing plate to achieve efficient grinding, and is equipped with a cooling mechanism, a water leakage hole, a material barrier frame and a drainage pipe to ensure grinding quality and stability.
Improve grinding efficiency, reduce labor force, ensure high-precision grinding quality, reduce labor costs, and prevent iron slag from scratching parts through cooling and flushing.
Smart Images
Figure CN223000353U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of powder metallurgy part processing, in particular to a surface grinding machine for powder metallurgy part processing. Background Technique
[0002] Metal powder injection molding is a new powder metallurgy near-net shaping technology extended from the plastic injection molding industry. As is well known, plastic injection molding technology can produce various products with complex shapes at a low price, but the strength of plastic products is not high. To improve their performance, metal or ceramic powder can be added to the plastic to obtain products with higher strength and good wear resistance. In recent years, this idea has evolved into maximizing the content of solid particles and completely removing the binder during the subsequent sintering process and densifying the green compact. This new powder metallurgy forming method is called metal injection molding. The basic process steps of metal injection molding are: first, select qualified metal powder and binder, then mix the powder and binder into a uniform feed at a certain temperature by an appropriate method, granulate it, and then inject it into the mold under high pressure. The obtained green compact is sintered and densified after debinding treatment to become the final product. Some workpieces have high precision requirements for their planes and need to polish high-precision planes. At present, manual polishing is generally used, which has low efficiency and high labor costs. Therefore, a surface grinding machine for powder metallurgy part processing is proposed to solve the above problems. Content of the Utility Model
[0003] The technical problem to be solved by the utility model is to provide a surface grinding machine for powder metallurgy part processing aiming at the deficiencies in the above-mentioned prior art.
[0004] To solve the above technical problem, the technical scheme adopted by the utility model is: a surface grinding machine for powder metallurgy part processing, including a grinding box, a grinding mechanism and a pressing mechanism are respectively arranged on the grinding box, and a cooling mechanism is arranged on the pressing mechanism;
[0005] The grinding mechanism includes: a rotating shaft, the number of the rotating shafts is several, several of the rotating shafts are rotatably connected to the front inner wall of the grinding box at equal intervals through bearings and are close to the top of the grinding box, the outer wall of each rotating shaft is fixedly sleeved with a grinding roller, and the outer walls of two adjacent grinding rollers are in contact with each other. The rear end of each rotating shaft penetrates through the grinding box and extends backward, and the outer wall of each rotating shaft is fixedly sleeved with a gear and is located on the back of the grinding box, and two adjacent gears are meshed with each other;
[0006] The blank holding mechanism includes: a frame body, which is fixedly connected to the left side of the grinding box. The frame body is arranged in an inverted "L" shape. An electric telescopic rod is connected to the inner side of the top of the frame body. The piston end of the electric telescopic rod is fixedly connected to a sleeve. A sleeve rod is slidably connected to the inner wall of the sleeve. The top end of the sleeve rod is fixedly connected to a spring, and the other end of the spring is fixedly connected to the inner wall of the sleeve. The bottom end of the sleeve rod is fixedly connected to a pressure plate.
[0007] Preferably, a motor is connected to the back of the grinding box through a bracket, and the rear end of the right rotating shaft is fixedly connected to the output end of the motor through a coupling.
[0008] Preferably, the cooling mechanism includes: a coolant tank and a pump body. The coolant tank is fixedly connected to the top of the frame body. The pump body is connected to the top of the frame body. The input end of the pump body is communicated with the coolant tank through a pipeline. The output end of the pump body is fixedly connected to a telescopic hose, and the other end of the telescopic hose penetrates the frame body and is communicated with the top of the pressure plate.
[0009] Preferably, the inside of the pressure plate is hollow, and a plurality of water leakage holes are equidistantly arranged at the bottom of the pressure plate.
[0010] Preferably, a material blocking frame is fixedly connected to the bottom of the pressure plate, and the material blocking frame is arranged in a "hui" character shape.
[0011] Preferably, the inside of the grinding box is hollow and the top is open. A drain pipe is fixedly connected to the lower right side of the grinding box.
[0012] The utility model adopts the above technical solutions, and can bring the following beneficial effects:
[0013] 1. For the surface grinding machine for powder metallurgy part processing, through the combined use of the grinding mechanism and the blank holding mechanism, the relative rotation of multiple grinding rollers can grind multiple parts simultaneously, effectively improving the grinding efficiency and reducing the manual labor. The pressure plate applies a downward pressure on the parts, making the grinding surface of the parts closely fit with the grinding rollers, ensuring the grinding quality.
[0014] 2. For the surface grinding machine for powder metallurgy part processing, through the combined use of the cooling mechanism, water leakage holes, material blocking frame and drain pipe, the pump body pumps out the coolant in the coolant tank and discharges it through the telescopic hose and water leakage holes, thereby cooling and flushing the parts, preventing the iron slag from scratching the parts during the grinding process, further improving the grinding quality. The material blocking frame limits the parts to prevent the parts from falling during the grinding process, improving the stability. The drain pipe discharges the coolant, improving the practicability. Description of the Drawings
[0015] Figure 1Schematic diagram of the front structure of the present utility model;
[0016] Figure 2 Right view sectional view of the present utility model;
[0017] Figure 3 Front view sectional view of the present utility model;
[0018] Figure 4 is Figure 3 Enlarged view of part A of
[0019] In the figure: 1, grinding box; 2, grinding mechanism; 21, rotating shaft; 22, grinding roller; 23, gear; 3, pressing mechanism; 31, frame body; 32, electric telescopic rod; 33, sleeve; 34, sleeve rod; 35, spring; 36, pressing disc; 4, motor; 5, cooling mechanism; 51, coolant tank; 52, pump body; 53, telescopic hose; 6, water leakage hole; 7, material blocking frame; 8, drain pipe. Specific implementation mode
[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0021] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.
[0022] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "setting" should be understood in a broad sense. For example, it can be fixedly connected and set, or detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0023] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "several" is two or more, unless otherwise specifically defined.
[0024] Please refer to Figures 1-4 , an embodiment of the present utility model is: a surface grinding machine for processing powder metallurgy parts, including a grinding box 1, a grinding mechanism 2 and a material pressing mechanism 3 are respectively arranged on the grinding box 1, and a cooling mechanism 5 is arranged on the material pressing mechanism 3; the grinding mechanism 2 includes: a rotating shaft 21, the number of the rotating shafts 21 is several, several rotating shafts 21 are rotatably connected to the front inner wall of the grinding box 1 at equal intervals through bearings and are close to the top of the grinding box 1, the outer wall of each rotating shaft 21 is fixedly sleeved with a grinding roller 22, and the outer walls of two adjacent grinding rollers 22 are in contact with each other, the rear end of each rotating shaft 21 penetrates through the grinding box 1 and extends backward, the back of the grinding box 1 is connected with a motor 4 through a bracket, and the rear end of the rotating shaft 21 on the right side is fixedly connected with the output end of the motor 4 through a coupling, by starting the motor 4, the rotating shaft 21 connected thereto can be driven to rotate, the outer wall of each rotating shaft 21 is fixedly sleeved with a gear 23 and is located at the back of the grinding box 1, and two adjacent gears 23 are meshed with each other, the relative rotation of multiple grinding rollers 22 can be used to grind multiple parts simultaneously, effectively improving the grinding efficiency and reducing the manual labor; the material pressing mechanism 3 includes: a frame body 31, the frame body 31 is fixedly connected to the left side of the grinding box 1, the frame body 31 is arranged in an inverted "L" shape, the inner side of the top of the frame body 31 is connected with an electric telescopic rod 32, the piston end of the electric telescopic rod 32 is fixedly connected with a sleeve 33, the inner wall of the sleeve 33 is slidably connected with a sleeve rod 34, the top end of the sleeve rod 34 is fixedly connected with a spring 35, and the other end of the spring 35 is fixedly connected with the inner wall of the sleeve 33, the bottom end of the sleeve rod 34 is fixedly connected with a pressing plate 36, the pressing plate 36 is used to apply a downward pressure to the part, so that the grinding surface of the part is closely attached to the grinding roller 22, ensuring the grinding quality.
[0025] Working principle: Place several parts on the grinding roller 22. Start the motor 4 to drive the rotating shaft 21 connected thereto to rotate. The rotating shaft 21 drives the grinding roller 22 and the gear 23 to rotate. At the same time, under the meshing of the gears 23, the adjacent two grinding rollers 22 rotate relative to each other, so as to grind multiple parts simultaneously under the rotation of multiple grinding rollers 22. At the same time, start the electric telescopic rod 32 to drive the sleeve 33 to descend. The sleeve 33 drives the sleeve rod 34 to move, and the sleeve rod 34 drives the pressure plate 36 to move, so that the pressure plate 36 descends to apply a downward pressure to the parts, making the grinding surface of the parts closely fit with the grinding roller 22, ensuring the grinding quality. And when the pressure plate 36 receives an upward thrust, the pressure plate 36 pushes against the sleeve rod 34, causing the sleeve rod 34 to slide along the inner wall of the sleeve 33 and compress the spring 35, so that the pressure plate 36 has a movable space to avoid damage to the parts caused by excessive pressing force.
[0026] Please refer to Figures 1-4 , on the basis of the above embodiment, in another embodiment of the present utility model, the cooling mechanism 5 includes: a coolant tank 51 and a pump body 52. The coolant tank 51 is fixedly connected to the top of the frame body 31. The pump body 52 is connected to the top of the frame body 31. The input end of the pump body 52 is communicated with the coolant tank 51 through a pipeline. The output end of the pump body 52 is fixedly connected with a telescopic hose 53, and the other end of the telescopic hose 53 penetrates through the frame body 31 and is communicated with the top of the pressure plate 36. The inside of the pressure plate 36 is hollow. A plurality of water leakage holes 6 are equidistantly arranged at the bottom of the pressure plate 36. The water leakage holes 6 are provided to facilitate the discharge of the coolant in the pressure plate 36. The pump body 52 is used to pump out the coolant in the coolant tank 51 and discharge it through the telescopic hose 53 and the water leakage holes 6, so as to cool and wash the parts, prevent iron slag from scratching the parts during the grinding process, and further improve the grinding quality. A material retaining frame 7 is fixedly connected to the bottom of the pressure plate 36, and the material retaining frame 7 is arranged in a "return" shape. The material retaining frame 7 is used to limit the parts to prevent the parts from falling during the grinding process, improving the stability. The inside of the grinding box 1 is hollow and the top is open. A drain pipe 8 is fixedly connected to the lower right side of the grinding box 1. The drain pipe 8 is used to discharge the coolant, improving the practicability.
[0027] Working principle: During the grinding process, start the pump body 52 to pump out the coolant in the coolant tank 51, and enter the inner cavity of the pressure plate 36 through the telescopic hose 53, and then discharge it from the water leakage holes 6 and fall onto the parts, so as to cool and wash the parts, prevent iron slag from scratching the parts during the grinding process. The used coolant falls into the grinding box 1 and is discharged by opening the drain pipe 8. At the same time, the parts are limited by the material retaining frame 7 to prevent the parts from falling during the grinding process and also prevent the coolant from splashing outwards.
[0028] It should be noted that the electric telescopic rod 32, the motor 4, and the pump body 52 in the above embodiments are all common devices in the prior art, and the models and the like adopted can be customized according to actual usage requirements. Moreover, the power supply interface of the electrical equipment in this utility model is connected to the power supply system through a switch (not shown in the figure) and a wire (not shown in the figure) so as to realize its control. The circuits and controls involved are all prior art and are well-known to those skilled in the current field, and thus will not be elaborated here.
[0029] The present utility model provides a surface grinding machine for processing powder metallurgy parts. There are many methods and ways to specifically implement this technical solution. The above description is only the preferred embodiment of the present utility model. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principle of the present utility model, several improvements and retouches can be made, and these improvements and retouches should also be regarded as the protection scope of the present utility model. Each component not clearly defined in this embodiment can be implemented by the prior art.
Claims
1. A surface grinding machine for powder metallurgy parts processing, comprising a grinding box (1), characterized in that: The grinding box (1) is provided with a grinding mechanism (2) and a material pressing mechanism (3), and the material pressing mechanism (3) is provided with a cooling mechanism (5); The grinding mechanism (2) comprises: a rotating shaft (21), the number of the rotating shafts (21) is multiple, the multiple rotating shafts (21) are rotatably connected to the front inner wall of the grinding box (1) at equal intervals through bearings, and are close to the top of the grinding box (1), the outer wall of each rotating shaft (21) is fixedly sleeved with a grinding roller (22), and the outer walls of two adjacent grinding rollers (22) are in contact with each other, the rear end of each rotating shaft (21) passes through the grinding box (1) and extends backward, the outer wall of each rotating shaft (21) is fixedly sleeved with a gear (23), and is located on the back of the grinding box (1), and two adjacent gears (23) are meshed with each other; The material pressing mechanism (3) comprises: a frame (31), the frame (31) is fixedly connected to the left side of the grinding box (1), the frame (31) is arranged in an inverted "L" shape, the inner side of the top of the frame (31) is connected to an electric telescopic rod (32), the piston end of the electric telescopic rod (32) is fixedly connected to a sleeve (33), the inner wall of the sleeve (33) is slidably connected to a sleeve rod (34), the top end of the sleeve rod (34) is fixedly connected to a spring (35), and the other end of the spring (35) is fixedly connected to the inner wall of the sleeve (33), and the bottom end of the sleeve rod (34) is fixedly connected to a pressure plate (36).
2. A surface grinding machine for powder metallurgy parts processing according to claim 1, characterized in that: The back of the grinding box (1) is connected to a motor (4) via a bracket, and the rear end of the rotating shaft (21) on the right side is fixedly connected to the output end of the motor (4) via a coupling.
3. The surface grinding machine for powder metallurgy parts processing according to claim 1, characterized in that: The cooling mechanism (5) comprises: a cooling liquid tank (51) and a pump body (52); the cooling liquid tank (51) is fixedly connected to the top of the frame (31); the pump body (52) is connected to the top of the frame (31); the input end of the pump body (52) is connected to the cooling liquid tank (51) via a pipeline; the output end of the pump body (52) is fixedly connected to a telescopic hose (53); and the other end of the telescopic hose (53) passes through the frame (31) and is connected to the top of the pressure plate (36).
4. The surface grinding machine for powder metallurgy parts processing according to claim 1, characterized in that: The interior of the pressure plate (36) is hollow, and a plurality of water leakage holes (6) are provided at equal intervals on the bottom of the pressure plate (36).
5. The surface grinding machine for powder metallurgy parts processing according to claim 1, characterized in that: A material blocking frame (7) is fixedly connected to the bottom of the pressure plate (36), and the material blocking frame (7) is arranged in a "U" shape.
6. The surface grinding machine for powder metallurgy parts processing according to claim 1, characterized in that: The grinding box (1) is hollow inside and has an open top. A drainage pipe (8) is fixedly connected to the lower right side of the grinding box (1).