Powder metallurgy oil bearing pressing die

Abstract

The utility model discloses a powder metallurgy oil bearing pressing die, and belongs to the technical field of powder metallurgy. The device mainly comprises a stamping platform; the stamping assembly is provided with a lower die plate for forming metallurgical powder and a limiting plate for clamping the lower die plate; the cleaning assembly comprises a fixing base, a cleaning assembly and a driving assembly, and the fixing base is installed on the limiting plate. The motor is installed on the fixing base, and a rotating rod is installed at the output end of the motor; the gear is mounted on the rotating rod; the side plate is mounted on the limiting plate; the four groups of limiting frames are mounted on the side plates; the rack is mounted between the two groups of limiting frames; and the scraping plate is mounted on the rack. According to the powder metallurgy oil bearing pressing die, through the arrangement of the fixing base, the motor, the rotating rod, the gear, the rack, the limiting frame, the scraping plate and the side plate, metallurgical powder scattered on the upper die plate can be gathered and fall into the die cavity of the lower die plate, and certain waste caused by scattering of the metallurgical powder is avoided.

Description

Technical Field

[0001] This application relates to the field of powder metallurgy technology, specifically to powder metallurgy oil-impregnated bearing pressing molds. Background Technology

[0002] Powder metallurgy is a process technology that uses metal powder or a mixture of metal powder and non-metal powder as raw materials to manufacture metal materials, composite materials and various types of products through processes such as molding and sintering.

[0003] Powder metallurgy has several unique advantages, such as the ability to manufacture parts with complex shapes, high material utilization, minimal or no-cutting machining, and the production of materials and products with special properties.

[0004] For example, the patent with publication number CN107695347B discloses a high-stability powder metallurgy pressing equipment, which includes a stamping platform, a connecting plate, a support frame, a stamping device, a hydraulic lifting rod, a support plate, a lower template, an upper template, a dovetail slide rail, and an extrusion block. The height of the support plate is adjusted by the hydraulic lifting rod to support the lower part of the lower template to meet the fixing of molds of different sizes.

[0005] In the aforementioned powder metallurgy pressing equipment, powder is placed into the cavity of the lower mold plate. Then, a hydraulic lifting rod is activated to lower the upper mold plate, pressing the powder into shape. The hydraulic lifting rod then moves the upper mold plate upwards. During this process, some powder adheres to the contact surface between the upper mold plate and the powder. As the upper mold plate moves upwards with the hydraulic lifting rod, the powder easily falls from the lower mold plate. Furthermore, due to the small size and easy dispersion of metallurgical powder, it easily spills onto the worktable. Therefore, a powder metallurgy oil-impregnated bearing pressing mold needs to be designed to solve these problems.

[0006] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Summary of the Invention

[0007] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is: to provide a powder metallurgy oil-impregnated bearing pressing mold, which solves the problem that when the above-mentioned powder metallurgy pressing equipment is used, by putting powder into the mold cavity of the lower mold plate, and then starting the hydraulic lifting rod to drive the upper mold plate to move down, the powder placed in the mold cavity of the lower mold plate is pressed and shaped. Then, the hydraulic lifting rod is driven to drive the upper mold plate to move up. At this time, some powder will stick to the contact surface between the upper mold plate and the powder. As the upper mold plate moves up with the hydraulic lifting rod, the powder is easy to fall off the lower mold plate. And because the metallurgical powder is small in volume and easy to disperse, the metallurgical powder is easy to spill onto the worktable.

[0008] The technical solution adopted by this application to solve its technical problem is: a powder metallurgy oil-impregnated bearing pressing mold. It mainly includes: a stamping platform; a stamping assembly mounted on the stamping platform, the stamping assembly having a lower template for forming metallurgical powder and a limiting plate for clamping the lower template; a cleaning assembly mounted on the limiting plate, the cleaning assembly including: a fixed base mounted on the limiting plate; a motor mounted on the fixed base, the output end of the motor having a rotating rod installed; a gear mounted on the rotating rod; a side plate mounted on the limiting plate; four sets of limiting frames mounted on the side plates; a rack mounted between two sets of limiting frames; and a scraper mounted on the rack.

[0009] Furthermore, a plastic strip is provided at the contact position between the scraper and the lower template.

[0010] Furthermore, the stamping assembly includes a support frame mounted on the stamping platform, a first hydraulic rod mounted on the support frame, and an upper template mounted on the output end of the first hydraulic rod;

[0011] The limiting plate is placed on the stamping platform. Two sets of sliders are installed on the side of the limiting plate facing the stamping platform. The stamping platform has a sliding groove, and bolts are threaded onto the limiting plate.

[0012] Furthermore, the limiting plate has a mounting plate, and the lower template is placed on two sets of the mounting plates.

[0013] Furthermore, a stop is installed on the limiting plate.

[0014] The beneficial effects of this application are: the powder metallurgy oil-impregnated bearing pressing mold provided by this application, through the setting of fixed base, motor, rotating rod, gear, rack, limiting frame, scraper and side plate, can gather the metallurgical powder scattered on the upper mold plate and fall into the mold cavity of the lower mold plate, thus avoiding the metallurgical powder from scattering and causing a certain amount of waste.

[0015] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0017] In the attached diagram:

[0018] Figure 1This is an overall schematic diagram of the powder metallurgy oil-impregnated bearing pressing mold in this application;

[0019] Figure 2 for Figure 1 An explosion diagram;

[0020] Figure 3 for Figure 2 A partial structural diagram at point A in the diagram;

[0021] Figure 4 for Figure 2 A schematic diagram of the local structure at point B in the diagram;

[0022] The following are the labeling elements in the figure:

[0023] 1. Stamping platform; 101. Slide groove; 102. Receiving groove; 2. Stamping assembly; 201. Support frame; 202. First hydraulic rod; 203. Upper template; 204. Limiting plate; 205. Slider; 206. Bolt; 207. Stop block; 208. Lower template; 209. Second hydraulic rod; 3. Cleaning assembly; 301. Fixed seat; 302. Motor; 303. Rotating rod; 304. Gear; 305. Rack; 306. Limiting frame; 307. Scraper; 308. Side plate. Detailed Implementation

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0026] like Figure 1-Figure 4 As shown, this application provides a powder metallurgy oil-impregnated bearing pressing mold, including a stamping platform 1, a stamping assembly 2 installed on the stamping platform 1, the stamping assembly 2 including a support frame 201 fixedly installed on the stamping platform 1, a first hydraulic rod 202 fixedly installed on the support frame 201, an upper template 203 installed at the output end of the first hydraulic rod 202, the upper template 203 being adapted to move with the first hydraulic rod 202 to approach the stamping platform 1;

[0027] Two sets of limiting plates 204 are placed on the stamping platform 1. Two sets of sliders 205 are fixedly installed on the side of the limiting plate 204 facing the stamping platform 1. At the same time, a groove 101 adapted to the size of the slider 205 is opened on the stamping platform 1. The limiting plate 204 is used to move along the direction of the groove 101 by the slider 205 to adjust the position between the two sets of limiting plates 204.

[0028] A bolt 206 is threaded onto the limiting plate 204. The bolt 206 passes through the limiting plate 204 and is threaded onto the stamping platform 1, so as to fix the limiting plate 204 onto the stamping platform 1.

[0029] The limiting plate 204 has a mounting plate (not shown in the figure), on which a lower template 208 is placed. At the same time, a receiving groove 102 for storing the lower template 208 is provided on the stamping platform 1. The mounting plate is used to support the lower template 208. A stop block 207 is fixedly installed on the limiting plate 204. The stop block 207 is used to restrict the lower template 208 on the mounting plate.

[0030] The lower template 208 has a through oil-impregnated bearing cavity, and a second hydraulic rod 209 is fixedly installed on the receiving groove 102. The output end of the second hydraulic rod 209 is fixedly installed with a receiving plate (not shown in the figure) that is adapted to the size of the oil-impregnated bearing cavity. The receiving plate is initially located inside the oil-impregnated bearing cavity. At the same time, the receiving plate is used to store metallurgical powder, and the receiving plate is adapted to move with the output end of the second hydraulic rod 209 to eject the pressed oil-impregnated bearing.

[0031] A cleaning assembly 3 is installed on a set of limiting plates 204. The cleaning assembly 3 includes a fixed base 301 fixedly installed on the limiting plates 204, a motor 302 fixedly installed on the fixed base 301, a rotating rod 303 fixedly installed at the output end of the motor 302, and a gear 304 fixedly installed at one end of the rotating rod 303. The gear 304 is adapted to rotate with the output end of the motor 302.

[0032] A side plate 308 is fixedly installed on the limiting plate 204, and four sets of limiting frames 306 are fixedly installed on the side plate 308. A rack 305 is movably installed between two sets of limiting frames 306. The limiting frame 306 is used to linearly limit the movement of the rack 305, and both sets of racks 305 mesh with gears 304. The two sets of racks 305 are adapted to move linearly away from or towards each other as the rack 305 rotates.

[0033] Scrapers 307 are fixedly installed on both sets of racks 305. The scrapers 307 are adapted to scrape and gather the metallurgical powder scattered on the lower template 208 as the racks 305 move.

[0034] In this application, a plastic strip is provided at the contact position between the scraper 307 and the lower template 208 so that the metallurgical powder on the lower template 208 can be scraped clean.

[0035] Working principle:

[0036] By placing the powder into the mold cavity of the lower mold 208, and then activating the first hydraulic rod 202 to move the upper mold 203 downward, the powder placed in the mold cavity of the lower mold 208 is pressed and shaped. Then, the hydraulic lifting rod is driven to move the upper mold 203 upward, and then the second hydraulic rod 209 is activated to move the receiving plate upward and push out the pressed oil-impregnated bearing. At this time, some powder will stick to the contact surface between the upper mold 203 and the powder, and as the upper mold 203 moves upward, some metallurgical powder will fall onto the lower mold 208.

[0037] Then, the motor 302 is started to drive the rotating rod 303 to rotate. The rotating rod 303 drives the gear 304, which in turn drives the two sets of racks 305 to move closer or further apart. This allows the metallurgical powder scattered on the upper mold plate 203 to be gathered and fall into the mold cavity of the lower mold plate 208, thus avoiding the metallurgical powder from scattering and causing some waste.

[0038] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A powder metallurgy oil-impregnated bearing pressing mold, characterized in that: include: Stamping platform (1); A stamping assembly (2) is mounted on the stamping platform (1) and has a lower template (208) for forming metallurgical powder and a limiting plate (204) for clamping the lower template (208). A cleaning component (3) is mounted on the limiting plate (204), the cleaning component (3) comprising: A fixing seat (301) is mounted on the limiting plate (204); A motor (302) is mounted on the fixed base (301), and a rotating rod (303) is mounted on the output end of the motor (302); Gear (304), which is mounted on the rotating rod (303); Side plate (308) is mounted on the limiting plate (204); Four sets of limiting frames (306) are mounted on the side plate (308); A rack (305) is mounted between the two sets of the limiting frames (306); A scraper (307) is mounted on the rack (305).

2. The powder metallurgy oil-impregnated bearing pressing mold according to claim 1, characterized in that: A plastic strip is provided at the contact position between the scraper (307) and the lower template (208).

3. The powder metallurgy oil-impregnated bearing pressing mold according to claim 2, characterized in that: The stamping assembly (2) includes a support frame (201) mounted on the stamping platform (1), a first hydraulic rod (202) mounted on the support frame (201), and an upper template (203) mounted on the output end of the first hydraulic rod (202); The limiting plate (204) is placed on the stamping platform (1). Two sets of sliders (205) are installed on the side of the limiting plate (204) facing the stamping platform (1). The stamping platform (1) is provided with a sliding groove (101). Bolts (206) are threadedly connected to the limiting plate (204).

4. The powder metallurgy oil-impregnated bearing pressing mold according to claim 3, characterized in that: The limiting plate (204) has a mounting plate, and the lower template (208) is placed on two sets of the mounting plates.

5. The powder metallurgy oil-impregnated bearing pressing mold according to claim 4, characterized in that: A stop (207) is installed on the limiting plate (204).

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