An automatic forming equipment for automobile starter housing

Abstract

The pre-forming machine of an automatic forming equipment for an automobile starter housing belongs to the technical field of automobile starter manufacturing, overcomes the problem that the preparation equipment of the existing technology starter housing needs subsequent shaping, that is, increases the processing cost, and is difficult to guarantee the precision of the housing, and the problems of high substandard rate and narrow application range, and is characterized in that a rectangular ejection rod through hole is processed on a mold core seat, an ejection rod connecting plate is connected on a piston rod of an ejection cylinder, a rectangular ejection rod is fixedly connected on the ejection rod connecting plate, an adjustable ejection block is fixedly connected on the front of the ejection rod, and the beneficial effect is that the pre-forming machine of the utility model is increased between a coiling machine and a finishing machine during use, the finishing is carried out after coiling and pre-forming, the finished product qualified rate and the precision of the housing are improved, the processing efficiency is improved, and the distance between the adjustable ejection block and the mold core of different models can be adjusted, so that the needs of different models of automobile starter housing processing are met.

Description

Technical Field

[0001] This utility model belongs to the field of automotive starter manufacturing technology, and specifically relates to a preforming machine for an automated molding equipment for automotive starter housing. Background Technology

[0002] The starter motor is an indispensable part of the automotive starting system. Existing starter motor housings are formed by directly drawing steel pipes, which is relatively expensive. To address the high cost of drawing starter motor housings from steel pipes, utility model application number 201720808482.2 discloses a "seam-type stator housing for an automotive starter motor." This utility model includes a housing formed by rolling a flat thin plate. The two ends of the flat thin plate are respectively provided with arc-shaped protrusions and W-shaped grooves, which are alternately arranged. The two ends are connected by splicing, and a raised dot is punched on the arc-shaped protrusion after splicing. This structure is simple and low-cost. According to the specification, the seam-type stator housing of this utility model is processed by first rolling the flat thin plate through multiple processes such as edge trimming, deburring, pre-bending, rolling, and seaming. Then, the stator housing is obtained through the processes of punching the raised dot and shaping. The problem is that the process of pre-bending, rolling, and joining the flat thin plate, and then punching protrusions and shaping it, that is, rolling it first, splicing it together, and then punching protrusions, will affect the accuracy of the shell. To adjust the accuracy, subsequent shaping will increase the processing cost and make it difficult to guarantee the accuracy of the shell.

[0003] The invention disclosed in application number CN202111571209.X (authorization publication number CN114226549B) is "A method for preparing a starter stator housing". This invention includes the following steps: Step 1, forming multiple first grooves by stamping at one end of a galvanized sheet; Step 2, forming multiple first rivets that match the first grooves by stamping at the other end of the galvanized sheet; Step 3, rolling the galvanized sheet into a cylindrical shape. According to the specification of this invention, if the roundness does not meet the requirements after the galvanized sheet is rolled into a cylindrical shape, a shaping mold is used to shape the cylindrical shape to ensure the roundness of the starter stator housing meets the specified requirements. Therefore, this invention involves punching holes and notches on the housing only after three steps, which also involves subsequent shaping to adjust accuracy, increasing processing costs and making it difficult to guarantee the accuracy of the housing.

[0004] The invention disclosed in application number 202311116965.2 is "an automated forming device and method for a starter housing". The automated forming device includes a processing table, a bending machine, a stacking table, a pneumatic gripper, and a forming machine. A guide table is fixedly connected to the processing table. The bending machine is fixedly set at one end of the guide table, the stacking table is fixedly set on one side of the guide table, and the pneumatic gripper is set on the other side of the guide table. The forming machine is located on one side of the processing table. The forming method includes: adsorbing the sheet material on the stacking table with a suction cup, moving it to the guide table, and feeding the sheet material into the bending machine; bending the sheet material with the bending machine to form a ring-shaped starter housing semi-finished product; using the pneumatic gripper to move the housing semi-finished product from the bending machine to the forming machine to form the finished housing; removing the finished housing from the forming machine for unloading, and then screening out the defective products. The automated forming equipment and method for starter housings described in this invention only has two main units: a bending machine and a forming machine. The bending machine first bends the sheet metal into a semi-finished housing, then clamps and moves the semi-finished housing onto the forming machine to produce the finished housing. This method suffers from a relatively low yield rate. According to paragraph

[0082] of the invention specification, the method produces defective products during the bending step. At this point, the bending operation must be stopped, and the defective products are removed using pneumatic grippers and placed on a conveyor belt. Furthermore, according to paragraph

[0077] of the invention specification, the finished housing is removed from the forming machine, and then defective products are screened out. It goes without saying that this invention produces defective products during the bending step and also after removing the finished housing from the forming machine, resulting in a high defect rate for the automated forming equipment and method. In addition, the invention has a cylinder five fixedly mounted on the frame, and the output end of the cylinder five is fixedly connected to the top ring for moving the top ring. The top ring is used to push out the finished parts of the housing. In other words, the top ring of the invention is not adjustable, and its application range is relatively narrow. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a preforming machine for an automated molding equipment for automobile starter housing that can solve the problem of high defect rate in the manufacturing process, thereby improving the product yield and the quality of the molded product.

[0006] The technical solution adopted by this utility model includes an upper template, a lower template, and an ejector cylinder. An upper mold base, an upper mold pad, and an upper mold are sequentially installed on the upper template from top to bottom. A lower mold base, a lower mold pad, and a lower mold are sequentially installed on the lower template from bottom to top. Four guide pillars are installed on the lower mold plate. The lower end of the upper mold is a semi-circular convex cavity, and the upper end of the lower mold is a semi-circular concave cavity. The semi-circular convex cavity of the upper mold and the semi-circular concave cavity of the lower mold form a circular mold cavity. A support is installed on the rear side of the lower mold plate. A mold core seat is fixedly installed on the upper end of the support. A mold core is fixedly connected to the mold core seat. Two rectangular ejector rod through holes are machined on the mold core seat. Two slides are also fixedly installed on the rear plane of the mold core seat. The rear ends of the two slides are fixedly installed on a cylinder connecting plate that is fixedly connected to the ejector cylinder. An ejector rod connecting plate is fixedly connected to the piston rod of the ejector cylinder. Rectangular ejector rods are fixedly connected to the upper part of the ejector rod connecting plate at the positions corresponding to the two rectangular ejector rod through holes on the mold core seat. Adjustable ejector blocks are fixedly connected to the front of the two rectangular ejector rods.

[0007] The adjustable ejector block includes an adjustable ejector block body. A blind elongated hole is machined in the middle of the adjustable ejector block body, and a thin elongated strip is machined at the bottom of the blind elongated hole. The blind elongated hole and the thin elongated hole form a stepped elongated hole. One side of the adjustable ejector block body is a contact arc that matches the mold core. The adjustable ejector block is fixedly connected to the rectangular ejector rod through the thin elongated hole with a second screw.

[0008] Compared with the prior art, the beneficial effects of this utility model are: (1) This utility model first punches holes, punches protrusions and punches notches on the material sheet with arc-shaped protrusions and W-shaped grooves, and then rolls, pre-forms and finishes it. There is no need to perform subsequent shaping in order to adjust the accuracy, which reduces the processing cost and ensures the accuracy of the shell.

[0009] (2) Since a pre-forming machine is added between the rolling machine and the finishing machine, the product is pre-formed after rolling and then finished, so no defective products will appear. This improves the finished product qualification rate and the precision of the shell, and also improves the processing efficiency.

[0010] (3) This utility model can replace different models of mold cores by disassembling and installing long screws, and adjust the distance between the adjustable top block and the mold core by using stepped long holes and second screws, thereby adapting to the processing needs of different models of automobile starter housings. Attached Figure Description

[0011] Figure 1 This is the front view of this utility model. Figure 2This is the left view of this utility model. Figure 3 yes Figure 1 AA section view, Figure 4 This is an enlarged perspective view of the adjustable top material block of this utility model. Figure 5 This is a schematic diagram of the usage state of this utility model.

[0012] In the picture: 1. Upper template, 2. Upper mold base, 3. Upper mold pad, 4. Upper mold, 4-1. Semi-circular convex cavity, 5. Guide pillars, 6. Mold core, 7. Lower mold, 7-1. Semi-circular concave cavity, 8. Lower mold backing plate, 9. Lower mold base, 10. Lower template, 11. Mold core holder, 11-1. Ejector rod through hole, 12. Adjustable top material block, 12-1. Adjustable top material block body, 12-2. Blind elongated hole; 12-3. Contact arc; 12-4. Narrow elongated hole. 13. Ejector cylinder, 13-1. Piston rod, 13-2. Third screw, 14. Support it; 15. Slide. 16. Cylinder connecting plate; 17. Ejector rod connecting plate. 18. Long screw, 19. First screw, 20. Second screw, 21. Ejector rod, 22. Finishing machine, 23. Rolling machine, 24. Conveyor belt, 25. Linear guide rail, 26. Robot arm, 27. Receiving tray. Detailed Implementation

[0013] The present invention will now be described in detail with reference to the accompanying drawings.

[0014] like Figures 1-3As shown, the technical solution adopted by this utility model includes an upper template 1, a lower template 10, and an ejector cylinder 13. An upper mold base 2, an upper mold pad 3, and an upper mold 4 are sequentially installed on the upper template 1 from top to bottom. A lower mold base 9, a lower mold pad 8, and a lower mold 7 are sequentially installed on the lower template 10 from bottom to top. Four guide pillars 5 are installed on the lower mold plate 10. The upper mold plate 1 has four through holes that match the guide pillars 5 and can move up and down along the guide pillars 5. The lower end of the upper mold 4 is a semi-circular convex cavity 4-1, and the upper end of the lower mold 7 is a semi-circular concave cavity 7-1. The semi-circular convex cavity 4-1 of the upper mold 4 and the semi-circular concave cavity 7-1 of the lower mold 7 form a circular mold cavity. Two supports 14 are installed on the rear side of the lower mold plate 10. A mold core seat 11 is fixedly installed on the upper end of the two supports 14. A mold core 6 is fixedly connected to the mold core seat 11 by a long screw 18. Two rectangular ejector rod through holes 11-1 are machined on the mold core seat 11. Two rectangular ejector rod through holes 11-1 are fixedly installed on the lower end of the rear of the mold core seat 11. The rear ends of the two slide rails 15 (left and right) are fixedly mounted on the cylinder connecting plate 16, which is fixedly connected to the ejector cylinder 13. An ejector rod connecting plate 17 is fixedly connected to the piston rod 13-1 of the ejector cylinder 13. On the ejector rod connecting plate 17, corresponding to the positions of the two rectangular ejector rod through holes 11-1 on the mold core seat 11, rectangular ejector rods 21 are fixedly connected with first screws 19. Specifically, two blind grooves are machined on the connecting plate 17. The rear ends of the two rectangular ejector rods 21 are inserted into the blind grooves on the connecting plate 17 from the front and fixedly connected to the connecting plate 17 from the rear with first screws 19. Adjustable ejector blocks 12 are fixedly connected to the front of the two rectangular ejector rods 21.

[0015] like Figure 1 and Figure 4 As shown, the adjustable ejector block 12 includes an adjustable ejector block body 12-1. A blind elongated hole 12-2 is machined in the middle of the adjustable ejector block body 12-1, and a narrow elongated hole 12-4 is machined at the bottom of the blind elongated hole 12-2. The blind elongated hole 12-2 and the narrow elongated hole 12-4 form a stepped elongated hole. One side of the adjustable ejector block body 12-1 is a contact arc 12-3 that matches the mold core 6. The adjustable ejector block 12 is fixedly connected to the rectangular ejector rod 21 through the narrow elongated hole 12-4 using a second screw 20.

[0016] like Figure 5As shown, in use, this utility model is installed between the rolling machine 23 and the finishing machine 22. Depending on the diameter of the car starter housing to be processed, different models of mold cores 6 are replaced by removing and installing long screws 18. Simultaneously, the distance between the adjustable top block 12 and the mold core 6 is adjusted by removing and installing the second screw 20 on the elongated slot 12-4. In specific processing, first, punching holes, punching protrusions, and punching notches are completed on the sheet material with arc-shaped protrusions and W-shaped grooves. Then, the rolling machine 23 rolls the sheet material into a circular semi-finished housing. The robotic arm 26 mounted on the linear guide 25 moves the semi-finished housing onto the mold core 6 of this utility model. The upper mold 4 moves downwards to the lower mold via guide pillars 5. After the semi-finished housing is further processed into a pre-formed housing by the cooperation of 7, under the ejection action of the piston rod 13-1 of the ejection cylinder 13, the ejector block connecting plate 17 moves forward on the left and right slides 15, driving the two ejector rods 21 fixedly connected to the ejector block connecting plate 17 to extend forward through the rectangular ejector rod through hole 11-1. The adjustable ejector block 12 fixedly connected to the ejector rod 21 moves forward accordingly, so that the pre-formed housing can be ejected from the mold core 6. After the pre-formed housing is ejected from the mold core 6, the two ejector rods 21 automatically retract to their original positions, and the adjustable ejector block 12 also moves backward to its original position, preparing for ejecting the next pre-formed housing. The pre-formed housing ejected from the mold core 6 is conveyed to the receiving tray 27 of the finishing machine 22 by the conveyor belt 24, and the forming process of the housing can be completed by the finishing machine 22.

Claims

1. A preforming machine for an automated molding equipment for automobile starter housing, comprising an upper template (1), a lower template (10), and an ejector cylinder (13), wherein an upper mold base (2), an upper mold pad (3), and an upper mold (4) are sequentially installed on the upper template (1) from top to bottom, and a lower mold base (9), a lower mold pad (8), and a lower mold (7) are sequentially installed on the lower template (10) from bottom to top, wherein four guide pillars (5) are installed on the lower template (10), the lower end of the upper mold (4) is a semi-circular convex cavity (4-1), and the upper end of the lower mold (7) is a semi-circular concave cavity (7-1), wherein the semi-circular convex cavity (4-1) of the upper mold (4) and the semi-circular concave cavity (7-1) of the lower mold (7) constitute a circular mold cavity, characterized in that, A support (14) is installed on the rear side of the lower template (10). A mold core seat (11) is fixedly installed on the upper end of the support (14). A mold core (6) is fixedly connected to the mold core seat (11). Two rectangular ejector rod through holes (11-1) are machined on the mold core seat (11). Two slide rails (15) are also fixedly installed on the rear plane of the mold core seat (11). The rear ends of the two slide rails (15) are fixedly installed with the ejector cylinder. 13) On the cylinder connecting plate (16) that is fixedly connected, an ejector rod connecting plate (17) is fixedly connected to the piston rod (13-1) of the ejector cylinder (13). On the ejector rod connecting plate (17), a rectangular ejector rod (21) is fixedly connected to the position of the two rectangular ejector rod through holes (11-1) on the left and right sides of the mold core seat (11). An adjustable ejector block (12) is fixedly connected to the front of the two rectangular ejector rods (21).

2. The preforming machine of an automated molding equipment for automotive starter motor housing according to claim 1, characterized in that, The adjustable ejector block (12) includes an adjustable ejector block body (12-1), a blind elongated hole (12-2) is machined in the middle of the adjustable ejector block body (12-1), and a thin elongated hole (12-4) is machined at the bottom of the blind elongated hole (12-2). The blind elongated hole (12-2) and the thin elongated hole (12-4) form a stepped elongated hole. One side of the adjustable ejector block body (12-1) is a contact arc (12-3) that matches the mold core (6). The adjustable ejector block (12) is fixedly connected to the rectangular ejector rod (21) through the thin elongated hole (12-4) with a second screw (20).

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