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CN-115673276-B - Casting forming die of oil collecting shell and application method of casting forming die

CN115673276BCN 115673276 BCN115673276 BCN 115673276BCN-115673276-B

Abstract

The invention discloses a casting forming die of an oil collecting shell, which belongs to the technical field of thin-wall piece casting devices and comprises a rear seat and a front seat which are mutually matched and connected, wherein an inner cavity die with the outer contour being consistent with the shape of an inner cavity of the shell to be formed is arranged in the middle of the rear seat, a pouring gate, a front section dead head, a middle section dead head and a rear section dead head are arranged on the front seat, one sides of the inner cavity die extend to the upper end face of the front seat, the other ends of the inner cavity die are connected with corresponding discharging grooves of a shell die seat, the inner cavity shape of the shell die seat is consistent with the outer contour of the shell to be formed, a chill component is further arranged on the shell die seat, and a forming rib ventilation groove is further arranged at the top of the shell die seat.

Inventors

  • XIA CHAOHUI
  • YU GUANGLIANG

Assignees

  • 贵阳华烽有色铸造有限公司

Dates

Publication Date
20260505
Application Date
20221123

Claims (5)

  1. 1. The casting forming die of the oil collecting shell is characterized by comprising a rear seat (1) and a front seat (2) which are mutually matched and connected; The middle part of the rear seat (1) is provided with a first strip-shaped through hole (1A), a positioning block (3) is arranged in the first strip-shaped through hole (1A), one side of the positioning block (3) facing the front seat (2) is provided with an inner cavity mold (4), and the outer contour of the inner cavity mold (4) is consistent with the inner cavity shape of a shell to be molded; The middle part of the front seat (2) is provided with a second strip-shaped through hole (2A), the end face of the front seat (2) opposite to the rear seat (1) is provided with a pouring gate (2B), a front section dead head (2C), a middle section dead head (2D) and a rear section dead head (2E), one sides of the pouring gate (2B), the front section dead head (2C), the middle section dead head (2D) and the rear section dead head (2E) extend to the upper end face of the front seat (2), the other end of the pouring gate is connected with the second strip-shaped through hole (2A), a shell mold seat (5) is arranged at the second strip-shaped through hole (2A), the inner cavity shape of the shell mold seat (5) is consistent with the outer contour of a shell to be molded, the side wall of the shell mold seat (5) is provided with a discharging groove communicated with the pouring gate (2B), the front section dead head (2C), the middle section dead head (2D) and the rear section dead head (2E), the shell mold seat (5) is provided with a cold iron component, the top of the shell mold seat (5) is provided with a molding rib (5), the inner cavity (4) is provided with a positioning block (3), the through holes are arranged along the height direction; the positioning block (3) is connected with the inner cavity die (4) through a ventilation plug (7), the end part of one side of the inner cavity die (4) and the surface of the corresponding position on the inner cavity die (4) form smooth continuous curved surfaces, the shell die seat (5) comprises a front die seat (5A), a front die seat (5B) and a rear die seat (5C) which are connected with each other, the front die seat (5A), the middle die seat (5B) and the rear die seat (5C) are of rectangular block structures with open cavities at the bottoms, the front die seat (5A), the side end surfaces of the middle die seat (5B) and the rear die seat (5C) are respectively provided with discharge grooves corresponding to a front section riser (2C), a middle section riser (2D) and a rear section riser (2E), the front die seat (5A) is also provided with discharge grooves corresponding to the pouring gate (2B), the number of cold iron components is three, the front cold iron (8) arranged on the front die seat (5A), the middle die seat (5B) and the rear die seat (5C) are respectively provided with cold iron (9) arranged on the front die seat (5A) and the middle die seat (5C) at the opposite positions of the front die seat (5C) and the middle section (5C) are respectively, the rear chill (10) is arranged at the tail part of the inner cavity of the rear mold seat (5C), the forming rib ventilation groove (5D) is arranged on the position, corresponding to the rib plate on the shell to be formed, of the shell mold seat (5), the forming rib ventilation groove (5D) is of a strip-shaped groove structure with the upper side wide and the lower side narrow, and the width of the groove connected to one side of the inner cavity of the shell mold seat (5) is not more than 0.2mm.
  2. 2. The casting mold of the oil collecting shell according to claim 1 is characterized in that connecting holes are formed in the diagonal positions of the rear seat (1) and the front seat (2), and the rear seat (1) and the front seat (2) are connected through functional rods (6) arranged at the connecting holes.
  3. 3. The casting mold of the oil collecting shell according to claim 1, wherein a pre-riser (2F) is arranged between the pouring gate (2B) and the front riser (2C) on the front seat (2), The pre-feeder (2F) is communicated with the second strip-shaped through hole (2A) only at the inlet side of the middle part, and the front-section feeder (2C), the middle-section feeder (2D) and the rear-section feeder (2E) are horn-shaped channels which are connected to the second strip-shaped through hole (2A) and have small sides and large sides.
  4. 4. The casting and forming die for the oil collecting shell, which is disclosed in claim 1, is characterized in that positioning clamping grooves are formed in the front seat (2) at positions corresponding to the front chill (8) and the intercooler (9), assembly holes are formed in the positioning clamping grooves of the front seat (2) and the front chill (8) and the intercooler (9), and the front die seat (5A) and the middle die seat (5B) are detachably arranged on the front seat (2) through the assembly holes in the front chill (8) and the intercooler (9) and corresponding connecting pieces.
  5. 5. The method of using the casting mold for the oil collecting housing according to any one of claims 1 to 4, comprising the steps of: s1, connecting and fixing an inner cavity die (4) and a positioning block (3) through an air-permeable plug (7), and mounting an assembled component on a first strip-shaped through hole (1A) of a rear seat (1); S2, mounting the front chill (8) and the middle chill (9) on positioning clamping grooves of a front mold seat (5A) and a middle mold seat (5B), mounting a rear chill (10) in a rear mold seat (5C), placing the front mold seat (5A) and the middle mold seat (5B) on a second strip-shaped through hole (2A) of the front seat (2), and connecting the front chill (8) and the middle chill (9) with the front seat (2) through hole shaft matching, and then clamping the rear mold seat (5C) into the rest mounting position of the second strip-shaped through hole (2A); S3, connecting the front seat (2) with the rear seat (1) through the functional rod piece (6) so that the riser is upwards arranged; S4, feeding from the inlet position of the pouring channel (2B) after connection is completed so as to cast and mold the shell; s5, demolding operation is carried out after the shell is molded.

Description

Casting forming die of oil collecting shell and application method of casting forming die Technical Field The invention relates to the technical field of thin-wall part casting devices, in particular to a casting forming die of an oil collecting shell and a using method thereof. Background The consistency of the thin-wall complex shell structure is a difficult processing device commonly encountered in the casting field, for example, when the oil collecting shell shown in fig. 1 and 2 is cast and produced, as the product has the sealing performance requirement, parts are welded on other parts for use, certain performance is required, sand casting is selected to be performed in batches, and the surface and internal quality of the formed oil collecting shell cannot meet the requirements. The casting mould is designed to prevent the problems of partial non-molding and internal structure shrinkage cavity of the part existing in the casting production process. Disclosure of Invention The invention aims to solve the technical problem of providing a casting forming die of an oil collecting shell, so as to solve the problems that parts are not formed locally and shrinkage holes are formed in the internal structure in the current casting production of the oil collecting shell. In order to solve the problems, the invention provides the following technical scheme: the casting mold for the oil collecting shell comprises a back seat and a front seat which are mutually matched and connected; the middle part of the rear seat is provided with a first strip-shaped through hole, a positioning block is arranged in the first strip-shaped through hole, and one side of the positioning block facing the front seat is provided with an inner cavity die; The middle part of the front seat is provided with a second strip-shaped through hole, the end face of the front seat, which is opposite to the rear seat, is also provided with a pouring gate, a front section dead head, a middle section dead head and a rear section dead head, one sides of the pouring gate, the front section dead head, the middle section dead head and the rear section dead head extend to the upper end face of the front seat, the other ends of the pouring gate, the front section dead head, the middle section dead head and the rear section dead head are connected with the second strip-shaped through hole, a shell mold seat is arranged at the second strip-shaped through hole, the shape of the inner cavity of the shell mold seat is consistent with the outer contour of a shell to be molded, the side wall of the shell mold seat is also provided with a discharging groove communicated with the pouring gate, the front section dead head, the middle section dead head and the rear section dead head, the shell mold seat is also provided with a cold iron component, and the top of the shell mold seat is also provided with a molding rib ventilation groove. Preferably, the rear seat and the front seat are connected through a functional rod arranged at the connecting hole. Preferably, through holes are formed in the inner cavity die and the positioning block, the through holes are arranged in the height direction, the positioning block and the inner cavity die are connected through an air permeable plug, and the end part of the air permeable plug on one side of the inner cavity die and the surface of the corresponding position on the inner cavity die form a smooth continuous curved surface. Preferably, a pre-feeder is also arranged between the pouring gate and the front section feeder on the front seat. The front section riser, the middle section riser and the rear section riser are horn-shaped channels which are connected to the second strip-shaped through hole and have small one side and large the other side. The shell mold seat comprises a front mold seat, a middle mold seat and a rear mold seat which are connected with each other in front and back, wherein the front mold seat and the bottom of the rear mold seat are of rectangular block structures with cavities, discharging grooves corresponding to front section risers, middle section risers and rear section risers are respectively arranged on side end surfaces of the front mold seat and the rear mold seat, and discharging grooves corresponding to pouring channels are also arranged on the front mold seat. Preferably, the number of the chill assemblies is three, namely a front chill arranged on a front mold seat, a middle chill arranged on a middle mold seat and a rear chill arranged on a rear mold seat, positioning clamping grooves are formed in the front mold seat and the middle mold seat at the end parts of one side opposite to a front section riser and a middle section riser, the front chill and the middle chill are arranged at the positioning clamping grooves, and the rear chill is arranged at the tail part of an inner cavity of the rear mold seat. Preferably, the front seat is also provided with a positioning clamping groove co