Motor rear cover casting mold

Abstract

The utility model relates to a motor rear cover casting mold, the top end of an upper mold is provided with an injection molding opening, and the left side of the injection molding opening is provided with a slag discharging groove used for discharging impurities in molten metal liquid; an opening and closing assembly used for discharging impurities on the filter plate to the slag discharging groove is arranged on the left side of the filter plate. During molding, molten metal liquid is poured into the injection molding opening and enters the storage cavity, the molten metal liquid in the storage cavity is poured into the molding cavity along the two injection molding pipes, trapped air in the molding cavity can be discharged through the two air outlet grooves, and meanwhile cooling of the motor rear cover in the molding cavity can be accelerated; meanwhile, the cooling pipe spirally cools in the cooling cavity, so that the cooling of the motor rear cover in the forming cavity can be accelerated; and finally, the limiting plate is controlled by the handle to move the sealing plate upwards, so that the injection molding opening can be communicated with the slag discharging groove, and the cooled impurities on the filter plate can be discharged along the slag discharging groove.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor rear cover manufacturing technical field especially is related to a motor rear cover casting mould. BACKGROUND

[0002] When the motor rear cover is manufactured, the casting mould needs to be used to manufacture the motor rear cover, and the traditional motor rear cover forming mould includes an upper mould and a lower mould, and a cavity is arranged in the upper mould or the lower mould to manufacture the motor rear cover. For example, as shown in the motor rear cover and the casting mould thereof and the motor of Chinese patent application No. CN202323635892.6, an inner mould and an outer mould are included, the inner mould includes a working oil channel type body, an oil return channel type body arranged at intervals with the working oil channel type body, an oil supply hole type body connected with the working oil channel type body, an oil distribution hole type body and an adjusting hole type body, the inner mould is matched with the outer mould, a casting space is formed between the inner mould and the outer mould, and the casting space is used to receive a casting liquid and form the motor rear cover.

[0003] However, when the inner mould and the outer mould are used to cast and form the motor rear cover, since the injection port of the upper mould lacks a device for filtering the molten metal liquid, the molten metal liquid usually has impurities when being injected into the cavity, thereby affecting the casting manufacturing of the motor rear cover. UTILITY MODEL CONTENTS

[0004] In order to solve the problem that the injection port of the upper mould lacks a device for filtering the molten metal liquid, the molten metal liquid usually has impurities when being injected into the cavity, thereby affecting the casting manufacturing of the motor rear cover, the utility model provides the following technical scheme:

[0005] A motor rear cover casting mould includes a lower mould and an upper mould used for casting the motor rear cover, a filtering device for filtering the molten metal liquid is arranged at the top end of the upper mould, and a cooling pipe for cooling the lower mould is arranged in the lower mould.

[0006] A forming cavity is arranged at the top end of the lower mould, and a forming mould frame for forming the motor rear cover is arranged in the cavity of the forming cavity.

[0007] An injection port is arranged at the top end of the upper mould, and a slag discharge groove for discharging the impurities in the molten metal liquid is arranged at the left side of the injection port.

[0008] The filtering device includes a filter plate arranged in the injection port and used for filtering the molten metal liquid, and an opening and closing component arranged at the left side of the filter plate and used for discharging the impurities on the filter plate to the slag discharge groove.

[0009] Further, the left and right ends of the lower mold are fixedly provided with a fixed plate one, and a cooling cavity for cooling the motor rear cover in the forming cavity is arranged in the lower mold and is located directly below the forming cavity.

[0010] Further, the bottom end of the upper mold is provided with a placing cavity for cooperating with the forming cavity to cast the motor rear cover, and an air outlet groove for discharging the hot air in the forming cavity is arranged in the upper mold, and the air outlet groove has two air outlet grooves which are symmetrically arranged on the two sides of the placing cavity.

[0011] Further, the bottom end of the injection port is provided with a storage cavity, the bottom end of the storage cavity is provided with an injection pipe for flowing the molten metal liquid in the injection port into the forming cavity, and the injection pipe has two injection pipes, and the front and rear ends of the upper mold are fixedly provided with a fixed plate two for cooperating with the fixed plate one to align the lower mold and the upper mold.

[0012] Further, the filter plate comprises a sealing plate inserted into the upper mold for sealing the residue discharge groove, the top end of the sealing plate is provided with a handle, and the top end of the handle is fixedly provided with a limiting plate for driving the handle to move up and down.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] By arranging the upper mold, the lower mold and the filtering device, when the motor rear cover needs to be cast, the molten metal liquid can be poured into the injection port and then into the storage cavity, the molten metal liquid in the storage cavity can flow into the forming cavity along the two injection pipes, the air in the forming cavity can be discharged through the two air outlet grooves, the cooling of the motor rear cover in the forming cavity can be accelerated, the motor rear cover in the forming cavity can be cooled by the spiral cooling of the cooling pipe in the cooling cavity, the sealing plate can be moved upward by the handle control limiting plate, the injection port can be connected with the residue discharge groove, the impurities on the filter plate can be discharged along the residue discharge groove, and the impurities in the molten metal liquid can be filtered and discharged. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the utility model;

[0016] Figure 2 It is a lower mold plan view of the utility model;

[0017] Figure 3 It is a lower mold sectional view of the utility model;

[0018] Figure 4 It is an upper mold plan view of the utility model;

[0019] Figure 5It is upper mold sectional view of the utility model.

[0020] Figure 6 It is filter device structure schematic view of the utility model.

[0021] In the drawings, the component names represented by each reference sign are listed as follows.

[0022] 100 - lower mold, 101 - forming cavity, 102 - forming mold frame, 103 - fixed plate one, 104 - cooling cavity.

[0023] 200 - upper mold, 201 - fixed plate two, 202 - deslagging groove, 203 - air outlet groove, 204 - placing cavity, 205 - injection pipe, 206 - storage cavity, 207 - injection port.

[0024] 300 - filter device, 310 - filter plate, 320 - opening and closing assembly, 321 - limiting plate, 322 - handle, 323 - sealing plate.

[0025] 400 - cooling pipe. DETAILED DESCRIPTION

[0026] The preferred specific embodiments for realizing the utility model are described in detail below, and clear and complete description is made in conjunction with the drawings.

[0027] Please refer to Figures 1-6 The utility model provides a motor rear cover casting mold.

[0028] Including lower mold 100 and upper mold 200 for casting to motor rear cover, the top of upper mold 200 is provided with filter device 300 for filtering molten metal liquid, and the lower mold 100 is provided with cooling pipe 400 for cooling lower mold 100.

[0029] The top of lower mold 100 is provided with forming cavity 101, and the cavity of forming cavity 101 is provided with forming mold frame 102 for forming motor rear cover, and the shape of forming mold frame 102 is same with the shape of motor rear cover, so as to facilitate the casting forming of motor rear cover by molten metal liquid flowing into forming mold frame 102 in forming cavity 101.

[0030] The left and right ends of the lower mold 100 are fixedly provided with fixed plates 103, and the middle portions of the fixed plates 103 are provided with fixed holes, so that the lower mold 100 and the upper mold 200 can be positioned and installed by the threaded connection between the bolts and the nuts. The lower mold 100 is provided with a cooling cavity 104 for cooling the motor rear cover in the forming cavity 101, and the cooling cavity 104 is located directly below the forming cavity 101. The cooling pipe 400 is threaded and spiraled in the cooling cavity 104, so that the cooling water can flow back and forth along the cooling pipe 400, thereby cooling the hot motor rear cover in the forming cavity 101, and facilitating the removal of the motor rear cover from the lower mold 200.

[0031] The top end of the upper mold 200 is provided with an injection port 207, and the injection port 207 is funnel-shaped, so that the molten metal liquid in the injection port 207 can flow into the forming cavity 101 to cast the motor rear cover. The left side of the injection port 207 is provided with a slag discharge groove 202 for discharging impurities in the molten metal liquid, and the slag discharge groove 202 is low on the left and high on the right. The right end of the slag discharge groove 202 is provided with a through hole, so that the communication between the slag discharge groove 202 and the injection port 207 can be controlled by the opening and closing assembly 320.

[0032] The bottom end of the upper mold 200 is provided with a placement cavity 204 for cooperating with the forming cavity 101 to cast the motor rear cover. The upper mold 200 is provided with two gas discharge grooves 203 for discharging the hot gas in the forming cavity 101, and the two gas discharge grooves 203 are symmetrically distributed on the left and right sides of the placement cavity 204. The gas discharge grooves 203 are used to discharge the gas in the forming cavity 101 when the metal liquid is poured, and the inverted L-shaped gas discharge grooves 203 can prevent dust from entering the interior of the forming cavity 101.

[0033] The bottom end of the injection port 207 is provided with a storage cavity 206, and the bottom end of the storage cavity 206 is provided with an injection pipe 205 for flowing the molten metal liquid in the injection port 207 into the forming cavity 101. The injection pipe 205 has two, and the two injection pipes 205 are symmetrically distributed on the left and right sides of the placement cavity 204. The two injection pipes 205 are located between the placement cavity 204 and the gas discharge grooves 203. When the motor rear cover needs to be cast, the molten metal liquid can be poured into the injection port 207 and enter the storage cavity 206. The molten metal liquid in the storage cavity 206 flows into the forming cavity 101 along the two injection pipes 205, and the gas in the forming cavity 101 can be discharged through the two gas discharge grooves 203, thereby accelerating the cooling of the motor rear cover in the forming cavity 101.

[0034] The front and rear ends of the upper mold 200 are fixedly provided with a second fixed plate 201 for aligning the lower mold 100 and the upper mold 200 with the first fixed plate 101, and the second fixed plate 201 is provided with a fixed hole to facilitate the through connection between the fixed hole of the first fixed plate 101 and the second fixed plate 201, and the positioning and installation of the upper mold 200 and the lower mold 100 can be achieved through the threaded connection between the bolt and the nut.

[0035] The filtering device 300 comprises a filtering plate 310 arranged in the injection port 207 and used for filtering the molten metal liquid, and a plurality of filtering holes are arranged on the plate body of the filtering plate 310 and used for filtering the impurities in the molten metal liquid; and the left side of the filtering plate 310 is provided with an opening and closing assembly 320 used for discharging the impurities on the filtering plate 310 to the slag discharge groove 202.

[0036] The filtering plate 310 comprises a sealing plate 323 inserted into the upper mold 200 and used for sealing the slag discharge groove 202, the top end of the sealing plate 323 is provided with a handle 322, the top end of the handle 322 is fixedly provided with a limiting plate 321 used for driving the handle 322 to move up and down; thereby when the motor rear cover needs to be cast, the molten metal liquid can be poured into the injection port 207 and enter the storage cavity 206, the molten metal liquid in the storage cavity 206 is poured into the forming cavity 101 along the two injection pipes 205, the air in the forming cavity 101 can be discharged through the two air outlet grooves 203, and the cooling of the motor rear cover in the forming cavity 101 can be accelerated, and the cooling of the motor rear cover in the forming cavity 101 can be accelerated through the spiral cooling of the cooling pipe 400 in the cooling cavity 104; finally, the sealing plate 323 is moved upward by the handle 322 controlling the limiting plate 321, so that the injection port 207 is communicated with the slag discharge groove 202, and the impurities on the filtering plate 310 after cooling can be discharged along the slag discharge groove 202, thereby the impurities in the molten metal liquid can be filtered and discharged.

[0037] Based on the above content and the drawings, those skilled in the art can understand and implement the present application. In addition, any non-creative modification of the present application by those skilled in the art without creative labor still falls within the protection scope of the present application.

Claims

1. A motor rear cover casting mold characterized by: The application relates to a lower die (100) and an upper die (200) for casting a motor rear cover, the top end of the upper die (200) is provided with a filtering device (300) for filtering molten metal liquid, and the lower die (100) is provided with a cooling pipe (400) for cooling the lower die (100); The top end of the lower die (100) is provided with a forming cavity (101), and the forming cavity (101) is provided with a forming die frame (102) for forming the motor rear cover; The top end of the upper die (200) is provided with an injection port (207), and the left side of the injection port (207) is provided with a slag discharge groove (202) for discharging impurities in the molten metal liquid; The filtering device (300) comprises a filtering plate (310) arranged in the injection port (207) and used for filtering the molten metal liquid, and the left side of the filtering plate (310) is provided with an opening and closing assembly (320) for discharging impurities on the filtering plate (310) to the slag discharge groove (202).

2. A motor rear cover casting mold according to claim 1, characterized in that: The left and right ends of the lower die (100) are fixedly provided with fixed plates (103), the lower die (100) is provided with a cooling cavity (104) for cooling the motor rear cover in the forming cavity (101), and the cooling cavity (104) is located directly below the forming cavity (101).

3. A motor rear cover casting mold according to claim 2, characterized in that: The bottom end of the upper die (200) is provided with a placing cavity (204) for cooperating with the forming cavity (101) to cast the motor rear cover, and the upper die (200) is provided with two air outlet grooves (203) for discharging hot air in the forming cavity (101), and the two air outlet grooves (203) are symmetrically arranged on the left and right sides of the placing cavity (204).

4. A motor rear cover casting mold according to claim 3, characterized in that: The bottom end of the injection port (207) is provided with a storage cavity (206), the bottom end of the storage cavity (206) is provided with injection pipes (205) for flowing the molten metal liquid in the injection port (207) into the forming cavity (101), and the upper die (200) is fixedly provided with fixed plates (201) at the front and rear ends and used for aligning the lower die (100) and the upper die (200) in cooperation with the fixed plates (103).

5. A motor rear cover casting mold according to claim 1, characterized in that: The filtering plate (310) comprises a sealing plate (323) inserted into the upper die (200) and used for sealing the slag discharge groove (202), the top end of the sealing plate (323) is provided with a handle (322), and the top end of the handle (322) is fixedly provided with a limiting plate (321) for driving the handle (322) to move up and down.

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