CN210702464U - Rear cover casting positioning and forming die - Google Patents

Abstract

The utility model discloses a rear cover casting positioning forming mold in the technical field of rear cover casting positioning forming molds. However, there are process steps on the outside, the left and right sides of the top of the lower mold are provided with positioning holes that match the positioning columns, the outer wall of the lower mold is fixedly assembled with a water cooling ring, and the top of the base is fixed with a A water tank, the top left and right sides of the water tank are respectively fixed with a cooling supply water pump and a return water pump, and the cooling supply water pump and the return water pump are respectively fixed with a water inlet pipe and a return pipe that are fixedly connected to the water cooling ring. The opposite side wall of the bracket is fixedly provided with an electric unloading telescopic rod group, and the unloading electric telescopic rod group is fixedly equipped with a gripper device, which can play the role of precise positioning when the workpiece is blanked. It can make the die casting precision of the workpiece higher and improve the precision of the product.

Description

A rear cover casting positioning forming mold

technical field

The utility model relates to the technical field of positioning and forming moulds for rear cover castings, in particular to a positioning and forming mould for rear cover castings.

Background technique

The mold is a tool that makes the billet into a part with a specific shape and size under the action of external force. It is widely used in blanking, die forging, cold heading, extrusion, powder metallurgy parts pressing, pressure casting, as well as engineering plastics, rubber, ceramics In the compression molding or injection molding of other products, the mold has a specific contour or cavity shape. The existing back cover casting mold directly uses the upper and lower molds for stamping molding. For some products with high precision requirements, in the dynamic setting. After the mold is closed and opened for many times, there will be deviations in the cooperation between the movable mold core and the fixed mold core, which will lead to the reduction of product accuracy, and the product will be directly scrapped. In addition, due to the low cooling rate of the castings, the molding speed of the castings is slow, and the work efficiency is not high, and the castings may adhere to the inside of the mold after completion, which is not easy to be released from the mold, which seriously affects Work efficiency, for this reason, we propose a positioning and forming mold for rear cover castings.

Utility model content

The purpose of the present utility model is to provide a positioning and forming mold for a rear cover casting, so as to solve the problems raised in the above-mentioned background technology.

In order to achieve the above purpose, the present invention provides the following technical solutions: a back cover casting positioning and forming mold, including a base, the top left and right sides of the base are fixedly provided with brackets, and the tops of the two sets of the brackets are fixedly provided with a top plate , the bottom center of the top plate is fixed with a lifting electric telescopic rod, the output end of the lifting electric telescopic rod is fixedly connected with an upper mold, and the left and right side walls of the upper mold are fixedly connected with a ball guide sleeve, the The left and right sides of the bottom of the top plate are fixedly provided with ball guide posts that match the ball guide bushes, the center of the bottom of the upper mold is fixed with a mold core, and the left and right sides of the bottom of the upper mold are fixed and nested. There are inserts, and positioning posts are fixed on the inserts, and a partition is fixed between the two sets of brackets. The top center of the lower mold is provided with a die-casting groove that matches the mold core, and the top of the lower mold is provided with a process step on the outer side, and the left and right sides of the top of the lower mold are provided with positioning columns. A water cooling ring is fixed on the outer wall of the lower die, a water tank is fixed on the top of the base, and a cooling water pump and a return water pump are fixedly installed on the left and right sides of the top of the water tank. The cold water pump and the return water pump are respectively fixed with a water inlet pipe and a return pipe that are fixedly connected to the water cooling ring, and a discharge electric telescopic rod group is fixed on the opposite side wall of the two sets of the brackets, and the discharge A gripper device is fixedly assembled on the electric telescopic rod group.

Preferably, the unloading electric telescopic rod group, the lifting electric telescopic rod, the gripper device, the cooling water pump and the return water pump are all electrically connected to the single-chip controller, and the unloading electric telescopic rod group, the lifting electric telescopic rod , gripper device, cooling water pump, return water pump and single chip controller are all electrically connected with external power supply.

Preferably, the water-cooling ring includes a water-cooling fin disposed on the outer side of the lower die, the inner wall of the water-cooling fin is fixedly provided with a copper heat-conducting sheet, and the left and right side walls of the water-cooling fin are respectively fixed and connected to the water inlet pipe and the return pipe. The first water pipe joint and the second water pipe joint.

Preferably, the inner cavity of the water cooling ring is provided with a diversion cavity, and the diversion cavity is distributed in a positive spiral along the circumferential direction of the water cooling ring, and the left and right ends of the diversion cavity are respectively connected to the first water pipe joint, the second Two water pipe joints are connected.

Preferably, the gripper device includes a fixed frame fixed on the output end of the unloading electric telescopic rod group, the fixed frame is fixedly provided with a clamping electric telescopic rod, and the output end of the clamping electric telescopic rod is fixedly connected with a hinge A folding frame is hinged on the left and right sides of the hinge block through pin shafts, and the corner of the folding frame is hinged on the fixed frame through the hinge shaft, and the inner side wall of the folding frame is fixed on the inner side wall. There is a discharge piece that is adapted to the lower die.

Preferably, the unloading electric telescopic rod group corresponds to the top of the lower mold, and the folding frame is an integrally formed V-shaped frame, and the bending angle of the folding frame is 120 degrees. The thickness of the blank is adapted to the process steps.

Compared with the prior art, the beneficial effects of the present utility model are:

1. During the mold clamping process of the upper mold and the lower mold of this utility model, the mold core can be nested in the die-casting groove so as to complete the die-casting production of the casting, and at the same time, the positioning column fixedly assembled in the insert is inserted into the upper mold with the movement of the upper mold. The positioning hole on the lower die ensures the fit of the upper die and the lower die, reduces the dislocation of the parting line between the upper die and the lower die, and at the same time, the ball guide sleeve slides on the ball guide post, which can play a precise role in blanking the workpiece. The function of positioning can make the die-casting precision of the workpiece higher, improve the precision of the product, reduce the scrap rate of the product, and improve the production efficiency;

2. Promote the cooling water pump to introduce the water in the water tank into the water cooling ring through the water inlet pipe, so as to realize the cooling of the lower mold, so that the heat of the casting can be transferred quickly, and the effect of fast casting can be achieved. The return pipe flows into the water tank to realize recycling, increase the cooling method for the lower mold, and improve the die-casting efficiency of the casting;

3. The unloading of the casting is realized by inserting two sets of gripping devices into the process steps, and the process steps are set on the parting surface of the lower mold, so that the part of the casting located on the parting surface of the lower mold can be completely wrapped inside the parting surface to avoid Casting slippage plays a role in preventing mold crushing. Under the same operating instructions, it reduces the frequency of mold crushing, improves the stability of product quality, and reduces manufacturing costs. The advantage is that it effectively reduces the frequency of mold crushing maintenance and improves the Product molding quality, reducing production costs.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present utility model;

Fig. 2 is the working principle diagram of the utility model;

Fig. 3 is the structural schematic diagram of the water cooling ring of the present invention;

FIG. 4 is a schematic structural diagram of the gripper device of the present invention.

In the picture: 1 base, 2 brackets, 3 top plates, 4 lift electric telescopic rods, 5 upper die, 6 ball guide bushes, 7 ball guide posts, 8 die cores, 9 inserts, 10 positioning posts, 11 partitions, 12 lowers Die, 13 die-casting grooves, 14 process steps, 15 positioning holes, 16 water cooling rings, 161 water cooling sheets, 162 copper heat conduction sheets, 163 first water pipe joints, 164 second water pipe joints, 17 water tanks, 18 cooling water pumps, 19 return water pumps , 20 water inlet pipe, 21 return pipe, 22 unloading electric telescopic rod group, 23 gripping device, 231 fixed frame, 232 clamping electric telescopic rod, 233 hinge block, 234 folding frame, 235 hinge shaft, 236 unloading piece , 24 microcontroller controllers.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to 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 implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to FIG. 1, the present utility model provides a technical solution: a back cover casting positioning forming mold, including a base 1, the top left and right sides of the base 1 are fixedly provided with brackets 2, and the tops of the two sets of brackets 2 are fixedly provided with The top plate 3, the bottom center of the top plate 3 is fixedly provided with a lifting electric telescopic rod 4, the output end of the lifting electric telescopic rod 4 is fixedly connected with an upper mold 5, and the left and right side walls of the upper mold 5 are fixedly connected with a ball guide sleeve 6, The left and right sides of the bottom of the top plate 3 are fixedly provided with ball guide posts 7 that are adapted to the ball guide sleeve 6, the bottom center of the upper mold 5 is fixedly provided with a mold core 8, and the bottom left and right sides of the upper mold 5 are fixedly embedded. The sleeve is provided with inserts 9, the inserts 9 are fixedly provided with positioning columns 10, a partition 11 is fixedly arranged between the two sets of brackets 2, and the top of the partition 11 is fixedly provided with a lower mold that matches the upper mold 5. 12. The top center of the lower mold 12 is provided with a die-casting groove 13 that is adapted to the mold core 8, and the top of the lower mold 12 is provided with a process step 14 on the outer side, and the left and right sides of the top of the lower mold 12 are provided with and positioned. The positioning hole 15 matched with the column 10, the water cooling ring 16 is fixedly assembled on the outer wall of the lower mold 12, the top of the base 1 is fixedly provided with a water tank 17, and the left and right sides of the top of the water tank 17 are respectively fixed and assembled with a cooling water pump 18 and a return flow The water pump 19, and the cooling water pump 18 and the return water pump 19 are respectively fixed and assembled with a water inlet pipe 20 and a return pipe 21 that are fixedly connected to the water cooling ring 16. The opposite side walls of the two sets of brackets 2 are fixedly provided with discharge electric motors. The telescopic rod group 22, and the unloading electric telescopic rod group 22 is fixedly equipped with a gripper device 23.

Please refer to FIG. 2 , the unloading electric telescopic rod group 22 , the lifting electric telescopic rod 4 , the gripper device 23 , the cooling water pump 18 and the return water pump 19 are all electrically connected to the single-chip controller 24 , and the unloading electric telescopic rod group 22 , Lifting electric telescopic rod 4, gripper device 23, cooling water pump 18, return water pump 19 and single-chip controller 24 are all electrically connected to the external power supply, which facilitates unified management through single-chip controller 24 and ensures the high efficiency of the device. sex;

Please refer to FIG. 3 , the water cooling ring 16 includes a water cooling fin 161 arranged on the outer side of the lower die 12 , the inner wall of the water cooling fin 161 is fixedly provided with a copper heat conducting sheet 162 , and the water inlet pipes 20 and 20 are respectively fixed on the left and right side walls of the water cooling fin 161 . The first water pipe joint 163 and the second water pipe joint 164 connected by the return pipe 21 increase the effect of rapid heat transfer on the lower mold 12 through the copper heat-conducting sheet 162, which facilitates heat exchange, improves the heat conduction efficiency, and improves the casting quality. Die casting efficiency;

The inner cavity of the water cooling ring 16 is provided with a diversion cavity, and the diversion cavity is distributed in a positive spiral along the circumferential direction of the water cooling ring 16, and the left and right ends of the diversion cavity are respectively connected to the first water pipe joint 163 and the second water pipe. The joint 164 is connected, so that the water can fill the inner cavity of the water cooling ring 16, increase the heat exchange area between the water and the lower mold 12, and improve the heat conduction speed;

Please refer to FIG. 4 , the gripper device 23 includes a fixing frame 231 fixed on the output end of the unloading electric telescopic rod group 22 , the fixing frame 231 is fixedly provided with a clamping electric telescopic rod 232 , and the output end of the clamping electric telescopic rod 232 is fixedly connected There is a hinge block 233, and the left and right sides of the hinge block 233 are hinged with a folding frame 234 through a pin shaft. The corner of the folding frame 234 is hinged on the fixed frame 231 through a hinge shaft 235. A discharge piece 236 that is adapted to the lower die 12 is fixed on the wall, so that when the electric telescopic rod 232 is clamped and retracted, the two sets of folding frames 234 can be pulled through the hinge block 233 to rotate around the hinge shaft 235, which is convenient for The unloading of the casting is realized by inserting the unloading piece 236 on the folding frame 234 into the process step 14;

The unloading electric telescopic rod group 22 corresponds to the top of the lower mold 12, and the folding frame 234 is a V-shaped frame formed in one piece, and the bending angle of the folding frame 234 is 120 degrees. The thickness of the discharge sheet 236 and the process The steps 14 are adapted.

A molding and processing method of a rear cover casting positioning molding die:

S1: The lifting and lowering electric telescopic rod 4 is controlled by the single-chip controller 24 to extend out, which can drive the upper mold 5 to move downward, so that during the mold clamping process of the upper mold 5 and the lower mold 12, the mold core 8 can be nested in the die-casting groove 13. In order to complete the die-casting production of castings, at the same time, the positioning column 10 fixedly assembled in the insert 9 is inserted into the positioning hole 15 on the lower mold 12 with the movement of the upper mold 5, so as to ensure the matching degree of the upper mold 5 and the lower mold 12, The dislocation of the parting line between the upper die 5 and the lower die 12 is reduced, and the ball guide bush 6 slides on the ball guide post 7, which can play a role in precise positioning when the workpiece is blanked, and can make the workpiece die-casting more accurate. Product accuracy, reduce product scrap rate, and improve production efficiency;

S2: At the same time, the cooling water pump 18 and the return water pump 19 are activated through the single-chip controller 24, so that the cooling water pump 18 can be prompted to introduce the water in the water tank 17 into the water cooling ring 16 through the water inlet pipe 20, so as to realize the cooling of the lower mold 12. , so that the heat of the casting can be quickly transferred to achieve the effect of rapid casting. At the same time, the return water pump 19 flows the water after heat exchange into the water tank 17 through the return pipe 21 to realize recycling, which increases the cooling means for the lower mold 12 and improves the Die casting efficiency of castings;

S3: After the die-casting of the casting is completed, the single-chip controller 24 controls the lifting and lowering electric telescopic rod 4 to retract inward, thereby driving the upper mold 5 to reset, and then controls the unloading electric telescopic rod group 22 to extend outward to drive the gripper device 23 to move above the lower mold 12. , the unloading of the casting is realized by inserting two sets of gripper devices 23 into the process steps 14, and the process steps 14 are set on the parting surface of the lower mold 12, so that the part of the casting located on the parting surface of the lower mold 12 can be completely wrapped in the parting surface Inside the surface, avoid the slippage of the casting, and play a role in preventing mold crushing. Under the same operation guidance, it can reduce the frequency of mold crushing, improve the stability of product quality, and reduce manufacturing costs. The advantage is to effectively reduce mold crushing maintenance. frequency, improve product molding quality and reduce production cost;

S4: After the unloading is completed by the gripper device 23, the single-chip controller 24 will cause the unloading electric telescopic rod group 22 to reset, and at the same time control the cooling water pump 18 and the return water pump 19 to stop working to wait for the next work instruction.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. A mold for positioning and forming a back cover casting, comprising a base (1), the top left and right sides of the base (1) are fixedly provided with brackets (2), and the tops of the two sets of the brackets (2) are fixedly provided with The top plate (3) is characterized in that: a lifting electric telescopic rod (4) is fixedly arranged at the bottom center of the top plate (3), and an upper die (5) is fixedly connected to the output end of the lifting electric telescopic rod (4). , the left and right side walls of the upper die (5) are fixedly connected with ball guide sleeves (6), and the bottom left and right sides of the top plate (3) are fixedly provided with ball guide sleeves (6). A ball guide column (7), a die core (8) is fixedly arranged at the bottom center of the upper die (5), and inserts (9) are fixedly nested on the left and right sides of the bottom of the upper die (5). A positioning column (10) is fixedly arranged on the inserts (9), a partition plate (11) is fixedly arranged between the two sets of the brackets (2), and the top of the partition plate (11) is fixedly arranged with a A lower mold (12) matched with the upper mold (5), a die-casting groove (13) matched with the mold core (8) is opened at the top center of the lower mold (12), and the lower mold (12) is The top of (12) is provided with a process step (14) on the outer side, and the left and right sides of the top of the lower mold (12) are provided with positioning holes (15) that are adapted to the positioning posts (10). A water cooling ring (16) is fixedly assembled on the outer wall of (12), a water tank (17) is fixedly arranged on the top of the base (1), and a cooling water pump ( 18) and the return water pump (19), and the cooling water supply water pump (18) and the return water pump (19) are respectively fixed and assembled with a water inlet pipe (20) and a return pipe (21) fixedly connected to the water cooling ring (16), Two sets of said brackets (2) are fixedly provided with a discharge electric telescopic rod group (22) on opposite side walls of the two groups, and a gripper device (23) is fixedly assembled on said discharge electric telescopic rod group (22). ). 2. A rear cover casting positioning forming mold according to claim 1, characterized in that: the unloading electric telescopic rod group (22), the lifting electric telescopic rod (4), the gripper device (23), the supply The cold water pump (18) and the return water pump (19) are both electrically input and connected to the single-chip controller (24), and the unloading electric telescopic rod group (22), the lifting electric telescopic rod (4), and the gripper device (23) , the cooling water pump (18), the return water pump (19) and the single chip controller (24) are all electrically connected with an external power supply. 3. A rear cover casting positioning forming mold according to claim 1, characterized in that: the water cooling ring (16) comprises a water cooling sheet (161) arranged on the outer side of the lower mold (12), and the water cooling sheet (161) A copper heat-conducting sheet (162) is fixedly arranged on the inner wall of the water-cooling sheet (161), and a first water pipe joint (163) connected to the water inlet pipe (20) and the return pipe (21) is fixedly arranged on the left and right side walls of the water cooling sheet (161). ) and the second water fitting (164). 4. A rear cover casting positioning forming mold according to claim 3, characterized in that: the inner cavity of the water cooling ring (16) is provided with a guide cavity, and the guide cavity is along the water cooling ring (16). ) is distributed in a positive spiral in the circumferential direction, and the left and right ends of the diversion cavity are respectively connected with the first water pipe joint (163) and the second water pipe joint (164). 5. A rear cover casting positioning and forming mold according to claim 1, characterized in that: the gripper device (23) comprises a fixing frame (231) fixed on the output end of the unloading electric telescopic rod group (22), A clamping electric telescopic rod (232) is fixedly arranged on the fixing frame (231), an output end of the clamping electric telescopic rod (232) is fixedly connected with a hinge block (233), and the hinge block (233) is on the A folding frame (234) is hinged on both the left and right sides through a pin shaft, and the corner of the folding frame (234) is hinged on the fixed frame (231) through a hinge shaft (235), and the folding frame (234) A discharge piece (236) adapted to the lower mold (12) is fixedly arranged on the inner side wall of 234). 6. A rear cover casting positioning forming mold according to claim 5, characterized in that: the unloading electric telescopic rod group (22) corresponds to the top of the lower mold (12), and the folding frame (234) An integrally formed V-shaped frame, the bending angle of the folding frame (234) is 120 degrees, and the thickness of the discharge sheet (236) is adapted to the process step (14).

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