A blanking die for an automobile connecting rod

Abstract

The utility model relates to the technical field of automobile connecting rod die, disclose a kind of blanking mould of automobile connecting rod, including bottom plate and top plate being set in the top plate of bottom plate, adjusting mechanism and stripping mechanism are installed and set on the bottom plate and top plate, the adjusting mechanism includes motor installation setting on the bottom plate, motor output end is connected and is set with screw rod, the outer wall of screw rod is connected with threaded push plate, by starting motor output end is reversed, to drive screw rod to be reversed, with the positive and negative rotation of screw rod, threaded push plate can be driven along the outer wall of support slide bar and move upwards or downwards, with the movement of threaded push plate, first connecting rod and second connecting rod can be simultaneously driven to move, so that lower mould and plug can be simultaneously moved, with the movement of lower mould and plug, the size of die cavity and connecting rod head blanking can be reduced or increased, so that it is not necessary for operator to manually adjust and reposition, to save the length of adjustment, to improve blanking efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of automotive connecting rod mold technology, specifically, it relates to a blanking mold for automotive connecting rods. Background Technology

[0002] As a core load-bearing component connecting the piston and crankshaft, the connecting rod of an automobile needs to withstand periodic impact loads and alternating stresses. The molding quality of its blank directly determines the subsequent machining accuracy, material utilization rate, and mechanical properties of the final product.

[0003] A search revealed that CN2011203491219 discloses a partial upsetting die for connecting rod blanks. The utility model has a relatively simple structure, is easy to manufacture and install, and can effectively change the axial metal volume distribution of the bar stock. Upsetting followed by roll forging can effectively reduce the roll forging elongation coefficient. By modifying the process steps, the number of roll forging passes and the complexity of the roll forging die cavity can be reduced.

[0004] However, the method of manually adjusting the distance between the upper and lower molds and then fixing them by plugging them together is cumbersome and time-consuming.

[0005] In view of this, this utility model is proposed. Utility Model Content

[0006] To address the aforementioned technical problem that the current mold uses a manual sliding method to adjust the distance between the upper and lower molds before fixing them with an interlocking mechanism, which is cumbersome and time-consuming, the basic concept of this utility model is as follows: A mold for making a connecting rod for automobiles includes a base plate and a top plate disposed above the base plate. An adjustment mechanism and a demolding mechanism are installed on the base plate and the top plate. The adjustment mechanism includes a motor mounted on the base plate, a lead screw connected to the output end of the motor, a threaded push plate threaded to the outer wall of the lead screw, a lower mold above the threaded push plate, and the movement of the threaded push plate can drive the lower mold to move synchronously. The demolding mechanism includes movable grooves formed on the bottom plate and the top plate. A support slide rod is slidably arranged on the inner wall of the movable groove. The movement of the support slide rod can drive the upper and lower molds on one side to separate and move.

[0007] In a preferred embodiment of this utility model, the adjusting mechanism includes a first connecting rod and a second connecting rod connected to the threaded push plate. The lower mold has a mold cavity inside. The end of the first connecting rod away from the threaded push plate is connected to the bottom end of the lower mold. The end of the second connecting rod away from the threaded push plate is connected to a plug. The plug is movably disposed inside the lower mold. The bottom end of the top plate is connected to the upper mold.

[0008] In a preferred embodiment of the present invention, the demolding mechanism includes a limiting slide groove formed on the inner wall of the movable groove, a limiting slider slidably arranged on the inner wall of the limiting slide groove, one end of the limiting slider being connected to the outer wall of the supporting slide rod, a supporting plate being connected to the outer wall of the supporting slide rod, a pin being movably arranged on the supporting plate, and a positioning hole being formed on the bottom plate.

[0009] In a preferred embodiment of this utility model, the upper mold, the lower mold, and the plug are all separately configured, and the top surface of the threaded push plate is provided with a sliding hole, the inner wall of which fits snugly against the outer wall of the supporting slide rod.

[0010] In a preferred embodiment of this utility model, the outer wall of the supporting slide rod is provided with a first through groove, the top surface of the threaded push plate is provided with a second through groove, the outer wall of the supporting slide rod is movably disposed on the inner wall of the second through groove, the outer walls of the first connecting rod and the second connecting rod are movably disposed on the inner wall of the first through groove, and the outer wall of the threaded push plate is provided with a movable block for limiting sliding.

[0011] In a preferred embodiment of this utility model, the inner wall of the movable groove is fitted to the outer wall of the supporting slide rod, and the top surface of the movable block is connected to the bottom ends of the first connecting rod and the second connecting rod located on the left side.

[0012] In a preferred embodiment of this utility model, the outer wall of the pin is fitted to the inner wall of the positioning hole.

[0013] Compared with the prior art, the present invention has the following advantages: This invention utilizes a motor output to rotate in both directions, thereby driving a lead screw to rotate in both directions. The rotation of the lead screw causes a threaded push plate to move upwards or downwards along the outer wall of the support slide. This movement of the threaded push plate synchronously moves the first and second connecting rods, which in turn moves the lower mold and the plug synchronously. The movement of the lower mold and the plug allows for the reduction or increase of the size of the mold cavity and the connecting rod head, eliminating the need for manual adjustment and repositioning by the operator, thus saving adjustment time and improving mold-making efficiency.

[0014] This invention releases the positioning of the support slide rod by pulling the pin to disengage it from the inner wall of the positioning hole. Then, by pulling the support slide rod, the movable block can be moved. As the movable block moves, the first and second connecting rods can be moved, thereby causing the upper and lower molds and the plug to separate and move. This allows the upper and lower molds to be opened, making it easier for operators to demold and unload materials, thus further improving the efficiency of blank making.

[0015] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0016] In the attached diagram: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the unfolded structure of this utility model; Figure 3 This is a schematic diagram of the adjustment mechanism of this utility model; Figure 4 This is a schematic diagram of the demolding mechanism of this utility model.

[0017] In the diagram: 1. Base plate; 2. Top plate; 31. Adjustment mechanism; 311. Motor; 312. Lead screw; 313. Threaded push plate; 314. Support slide rod; 315. First connecting rod; 316. Lower mold; 317. Mold cavity; 318. Second connecting rod; 319. Plug; 3110. Upper mold; 32. Demolding mechanism; 321. Movable groove; 322. Limiting slide groove; 323. Limiting slider; 324. Support plate; 325. Pin; 326. Positioning hole; 327. First through groove; 328. Second through groove; 329. Movable block. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0019] like Figures 1 to 4As shown, a mold for making a connecting rod for an automobile includes a base plate 1 and a top plate 2 disposed above the base plate 1. An adjustment mechanism 31 and a demolding mechanism 32 are installed on the base plate 1 and the top plate 2. The adjustment mechanism 31 includes a motor 311 mounted on the base plate 1. A lead screw 312 is connected to the output end of the motor 311. A threaded push plate 313 is threadedly connected to the outer wall of the lead screw 312. A lower mold 316 is disposed above the threaded push plate 313. The movement of the threaded push plate 313 can drive the lower mold 316 to move synchronously. The demolding mechanism 32 includes a movable groove 321 formed on the base plate 1 and the top plate 2. A support slide rod 314 is slidably disposed on the inner wall of the movable groove 321. The movement of the support slide rod 314 can drive the upper and lower molds on one side to separate and move.

[0020] The adjusting mechanism 31 includes a first connecting rod 315 and a second connecting rod 318 connected on the threaded push plate 313. The lower mold 316 has a mold cavity 317 inside. The end of the first connecting rod 315 away from the threaded push plate 313 is connected to the bottom end of the lower mold 316. The end of the second connecting rod 318 away from the threaded push plate 313 is connected to a plug 319. The plug 319 is movably disposed inside the lower mold 316. The bottom end of the top plate 2 is connected to an upper mold 3110.

[0021] Furthermore, the upper mold 3110, the lower mold 316, and the plug 319 are all separately configured. The top surface of the threaded push plate 313 is provided with a sliding hole. The inner wall of the sliding hole fits snugly against the outer wall of the supporting slide rod 314, thereby completing the separation and demolding. At the same time, the snug fits snugly against the outer wall of the supporting slide rod 314, thereby improving the stability of the movement of the threaded push plate 313.

[0022] Furthermore, the outer wall of the plug 319 fits snugly against the head cavity of the inner wall of the mold cavity 317, thus improving the tight fit between the outer wall of the plug 319 and the head cavity of the connecting rod and ensuring that no leakage occurs during preform making.

[0023] The demolding mechanism 32 includes a limiting slide groove 322 formed on the inner wall of the movable groove 321. A limiting slider 323 is slidably arranged on the inner wall of the limiting slide groove 322. One end of the limiting slider 323 is connected to the outer wall of the supporting slide rod 314. A supporting plate 324 is connected to the outer wall of the supporting slide rod 314. A pin 325 is movably arranged on the supporting plate 324. A positioning hole 326 is formed on the base plate 1.

[0024] Furthermore, the outer wall of the support slide rod 314 is provided with a first through groove 327, the top surface of the threaded push plate 313 is provided with a second through groove 328, the outer wall of the support slide rod 314 is movably disposed on the inner wall of the second through groove 328, the outer walls of the first connecting rod 315 and the second connecting rod 318 are movably disposed on the inner wall of the first through groove 327, and the outer wall of the threaded push plate 313 is provided with a movable block 329 for limiting sliding.

[0025] Furthermore, the inner wall of the movable groove 321 fits snugly against the outer wall of the support slide rod 314, and the top surface of the movable block 329 is connected to the bottom ends of the first connecting rod 315 and the second connecting rod 318 located on the left side. This improves the tightness of the fit between the support slide rod 314 and the inner wall of the movable groove 321, thereby improving the stability of the movement of the support slide rod 314.

[0026] The implementation principle of a mold for making a connecting rod for an automobile in this embodiment is as follows: When it is necessary to adjust the length of the mold cavity 317, the motor 311 can be started. Its output end will drive the lead screw 312 to rotate in both directions. When the output end of the motor 311 rotates forward, it can drive the lead screw 312 to rotate forward. When the lead screw 312 rotates forward, it can drive the threaded push plate 313 with threads on its outer wall to move upward. At this time, the threaded push plate 313 will slide upward on the outer wall of the support slide rods 314 on both sides. The support slide rods 314 on both sides can limit and support the threaded push plate 313, thereby improving the stability of the threaded push plate 313 during the moving support process. As the threaded push plate 313 moves upward, it drives the first connecting rods 315 on both sides to move upward synchronously. As the first connecting rods 315 move upward, they drive the lower mold 316 at one end to move upward. As the lower mold 316 moves upward, the distance between it and the upper mold 3110 is shortened. Conversely, when the output end of the starter motor 311 reverses, it drives the threaded push plate 313 to move downward, thereby driving the lower mold 316 to move downward, thus increasing the distance between it and the upper mold 3110. In this way, when adjusting the distance between the upper and lower molds, there is no need to manually adjust and reposition, thereby saving adjustment time and improving blank making efficiency. Simultaneously, as the threaded push plate 313 moves up and down, it will drive the second connecting rod 318 to move as well. The movement of the second connecting rod 318 will drive the plug 319 to move up and down. In this way, while adjusting the length of the inner wall of the mold cavity 317, the blank length at the head of the connecting rod will also be adjusted, thus adapting and improving blank making efficiency.

[0027] After the blank is made, the pin 325 can be pulled upwards, causing the outer wall of the pin 325 to disengage from the inner wall of the positioning hole 326. This releases the limiting position of the left support slide 314. Then, the left support slide 314 can be pulled to move the outer wall of the limiting slider 323 at its bottom end to slide on the inner wall of the limiting groove 322. At this time, the outer wall of the left support slide 314 will move the inner wall of the second through groove 328. During the movement of the left support slide 314, its outer wall will contact and push the movable block 329 to slide on the outer wall of the threaded push plate 313. As the movable block 329 moves, it will drive the first connecting rod 315 and the second connecting rod 318 at its top to move synchronously. As the first connecting rod 315 and the second connecting rod 318 move synchronously, they will drive the upper and lower molds and the plug 319 to separate and move, thereby opening the upper and lower molds and facilitating the demolding operation by the operator.

Claims

1. A blanking mold for an automobile connecting rod, comprising a base plate (1) and a top plate (2) disposed above the base plate (1), characterized in that, An adjustment mechanism (31) and a demolding mechanism (32) are installed on the bottom plate (1) and the top plate (2); The adjustment mechanism (31) includes a motor (311) mounted on the base plate (1), a lead screw (312) connected to the output end of the motor (311), a threaded push plate (313) threadedly connected to the outer wall of the lead screw (312), and a lower mold (316) above the threaded push plate (313). The movement of the threaded push plate (313) can drive the lower mold (316) to move synchronously. The demolding mechanism (32) includes a movable groove (321) opened on the bottom plate (1) and the top plate (2). A support slide rod (314) is slidably arranged on the inner wall of the movable groove (321). The movement of the support slide rod (314) can drive the upper and lower molds on one side to separate and move.

2. The blanking mold for an automotive connecting rod according to claim 1, characterized in that, The adjustment mechanism (31) includes a first connecting rod (315) and a second connecting rod (318) connected on the threaded push plate (313). The lower mold (316) has a mold cavity (317) inside. The end of the first connecting rod (315) away from the threaded push plate (313) is connected to the bottom end of the lower mold (316). The end of the second connecting rod (318) away from the threaded push plate (313) is connected to a plug (319). The plug (319) is movably disposed inside the lower mold (316). The bottom end of the top plate (2) is connected to an upper mold (3110).

3. The blanking mold for an automotive connecting rod according to claim 1, characterized in that, The demolding mechanism (32) includes a limiting slide groove (322) opened on the inner wall of the movable groove (321). A limiting slider (323) is slidably arranged on the inner wall of the limiting slide groove (322). One end of the limiting slider (323) is connected to the outer wall of the supporting slide rod (314). A supporting plate (324) is connected to the outer wall of the supporting slide rod (314). A pin (325) is movably arranged on the supporting plate (324). A positioning hole (326) is opened on the bottom plate (1).

4. The blanking mold for an automotive connecting rod according to claim 2, characterized in that, The upper mold (3110), lower mold (316) and plug (319) are all separately configured. The top surface of the threaded push plate (313) is provided with a sliding hole, and the inner wall of the sliding hole is fitted to the outer wall of the supporting slide rod (314).

5. The blanking mold for an automotive connecting rod according to claim 4, characterized in that, The outer wall of the support slide rod (314) is provided with a first through groove (327), the top surface of the threaded push plate (313) is provided with a second through groove (328), the outer wall of the support slide rod (314) is movably disposed on the inner wall of the second through groove (328), the outer walls of the first connecting rod (315) and the second connecting rod (318) are movably disposed on the inner wall of the first through groove (327), and the outer wall of the threaded push plate (313) is provided with a movable block (329) for limiting sliding.

6. The blanking mold for an automotive connecting rod according to claim 5, characterized in that, The inner wall of the movable groove (321) is fitted to the outer wall of the supporting slide rod (314), and the top surface of the movable block (329) is connected to the bottom end of the first connecting rod (315) and the second connecting rod (318) located on the left side.

7. The blanking mold for an automotive connecting rod according to claim 2, characterized in that, The outer wall of the plug (319) fits snugly against the head cavity of the inner wall of the mold cavity (317).

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