Machining device for high-quality core pulling of automobile parts

Abstract

The invention discloses a machining device for high-quality core pulling of automobile parts. The machining device comprises an upper die mechanism and a lower die mechanism, the lower die mechanism comprises a lower die base, a lower die core, a core-pulling base, a core-pulling rod, a hydraulic driving cylinder, a driven base and a locking rod, one end of the core-pulling rod extends into the cavity, one end of the core-pulling rod is connected with a cylinder rod of the hydraulic driving cylinder, a driving block is arranged on the cylinder rod of the hydraulic driving cylinder, the driven base is slidably connected to the inner wall of the core-pulling base, a guide hole channel is formed in the driven base, and the locking rod is arranged in the guide hole channel. A guide hole channel is formed in the upper die base, the guide hole channel is in a Z shape, a guide rod is arranged on the side face of the driving block and connected into the guide hole channel in a sliding mode, a locking rod is fixedly installed on the top face of the driven base and penetrates through a top plate of the core pulling base, a blind hole corresponding to the locking rod in position is formed in the upper die base, and a pressure sensor is arranged on the bottom face of the blind hole. Compared with the prior art, the hydraulic core-pulling structure solves the problem that an existing hydraulic core-pulling structure in a die-casting die cannot improve the die assembly quality of an upper die and a lower die.

Description

Technical Field

[0001] The invention relates to the technical field of die casting molds, in particular to a processing device for high-quality core pulling of automobile parts. Background Art

[0002] Core pulling is a technology used in molds to solve the problem of demoulding non-axial structures such as lateral holes, undercuts, and threads in products. Its essence is to accurately separate from the molding area when the mold is opened through a lateral motion mechanism.

[0003] In existing die-casting molds for automobile parts processing, when the hydraulic core-pulling structure set on the lower mold realizes the lateral movement of the core-pulling rod, the core-pulling process is unrelated to the upper mold. Unlike the core-pulling structure designed with inclined guide columns and sliders that can realize the connection between the upper and lower molds, it cannot improve the mold closing quality of the upper and lower molds. Summary of the Invention

[0004] The purpose of the present invention is to provide a high-quality core pulling processing device for automobile parts to solve the problem that the existing hydraulic core pulling structure in the die-casting mold cannot improve the mold closing quality of the upper mold and the lower mold.

[0005] In order to achieve the above-mentioned object, the present invention adopts the following technical solution: a processing device for high-quality core pulling of automobile parts, comprising:

[0006] An upper die mechanism comprises an upper die base and an upper die core, wherein the upper die core is arranged in the upper die base;

[0007] The lower mold mechanism includes a lower mold base, a lower mold core, a core pulling base, a core pulling rod, a hydraulic drive cylinder, a driven base and a locking rod. The lower mold core is arranged in the lower mold base, and the lower mold core and the upper mold core are assembled to form a cavity. The core pulling base is fixedly installed on the lower mold base, and the core pulling rod is slidably connected to the core pulling base. One end of the core pulling rod extends into the cavity, and one end of the core pulling rod is connected to the cylinder rod of the hydraulic drive cylinder. A driving block is provided on the cylinder rod of the hydraulic drive cylinder. The driven base is slidably connected to the inner wall of the core pulling base. A guide channel is provided on the driven base, and the guide channel is "Z" shaped. A guide rod is provided on the side of the driving block, and the guide rod is slidably connected in the guide channel. The locking rod is fixedly installed on the top surface of the driven base, and the locking rod is penetrated through the top plate of the core pulling base. A blind hole corresponding to the locking rod is provided on the upper mold base, and a pressure sensor is provided on the bottom surface of the blind hole.

[0008] As a further description of the above technical solution:

[0009] The locking rod comprises a lower rod body and an upper rod body, the upper rod body is threadedly connected to the lower rod body through a screw, and the lower rod body is fixedly installed on the top surface of the driven seat.

[0010] As a further description of the above technical solution:

[0011] A guiding cambered surface is provided on the top of the upper rod body.

[0012] As a further description of the above technical solution:

[0013] A notch is provided on an opposite side of the upper rod body.

[0014] As a further description of the above technical solution:

[0015] Symmetrically arranged driven seats are provided on both sides of the driving block.

[0016] As a further description of the above technical solution:

[0017] Two parallel slide rails are provided on the side wall of the core pulling seat, and the driven seat is slidably connected to the slide rails.

[0018] As a further description of the above technical solution:

[0019] The two slide rails are symmetrically arranged on both sides of the locking rod.

[0020] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0021] 1. In the present invention, when the core pulling rod is driven by the hydraulic drive cylinder and extends into the mold cavity, the drive block moves with the cylinder rod of the hydraulic drive cylinder, and the guide rod of the drive block slides in the guide channel, so that the driven seat slides and rises in the core pulling seat, and the locking rod moves upward and is inserted into the blind hole of the upper mold seat. The locking rod exerts an extrusion force on the pressure sensor to detect the mold closing status of the upper mold mechanism and the lower mold mechanism. At the same time, the locking rod is used to prevent the relative position of the upper mold mechanism and the lower mold mechanism from changing, thereby ensuring that the mold is closed in place and effectively ensuring the mold closing quality of the upper mold and the lower mold.

[0022] 2. In the present invention, the locking lever comprises a lower rod and an upper rod. The upper rod is threadedly connected to the lower rod via a screw, and the lower rod is fixedly mounted on the top surface of the driven seat. The upper rod can be rotated to adjust the overall length of the locking lever so that the top of the upper rod can effectively squeeze the pressure sensor in the blind hole of the upper die base. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 The figure is a schematic diagram of the structure of a processing device for high-quality core pulling of automotive parts.

[0025] Figure 2The figure is a schematic structural diagram of a core pulling seat in a processing device for high-quality core pulling of automotive parts.

[0026] Figure 3 for Figure 2 A partial enlarged view of point A in the middle.

[0027] Figure 4 The figure is a cross-sectional view of a core pulling seat in a processing device for high-quality core pulling of automotive parts.

[0028] Legend:

[0029] 1. Upper die mechanism; 11. Upper die base; 2. Lower die mechanism; 21. Lower die base; 22. Lower die core; 23. Core pulling seat; 231. Top plate; 232. Slide rail; 24. Core pulling rod; 25. Hydraulic drive cylinder; 251. Drive block; 2511. Guide rod; 26. Follower seat; 261. Guide channel; 27. Locking rod; 271. Lower rod body; 272. Upper rod body; 2721. Guide arc surface; 2722. Notch. DETAILED DESCRIPTION

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0032] Example 1

[0033] See also Figure 1-4 The present invention provides a technical solution: a processing device for high-quality core pulling of automotive parts, comprising:

[0034] The upper die mechanism 1 comprises an upper die base 11 and an upper die core, wherein the upper die core is arranged in the upper die base 11;

[0035] The lower die mechanism 2 includes a lower die base 21, a lower die core 22, a core pulling base 23, a core pulling rod 24, a hydraulic drive cylinder 25, a driven base 26 and a locking rod 27. The lower die core 22 is arranged in the lower die base 21. The lower die core 22 and the upper die core are assembled to form a cavity. The core pulling base 23 is fixedly mounted on the lower die base 21, and the core pulling base 23 is embedded in the surface of the lower die base 21. The core pulling rod 24 is slidably connected to the core pulling base 23. One end of the core pulling rod 24 extends into the cavity. One end of the core pulling rod 24 is connected to the cylinder rod of the hydraulic drive cylinder 25. The cylinder of the hydraulic drive cylinder 25 A driving block 251 is provided on the rod, and the driven seat 26 is slidably connected to the inner wall of the core pulling seat 23. A guide channel 261 is provided on the driven seat 26, and the guide channel 261 is in a "Z" shape. A guide rod 2511 is provided on the side of the driving block 251, and the guide rod 2511 is slidably connected in the guide channel 261. The locking rod 27 is fixedly installed on the top surface of the driven seat 26, and the locking rod 27 is passed through the top plate 231 of the core pulling seat 23. A blind hole corresponding to the position of the locking rod 27 is provided on the upper mold base 11, and a pressure sensor is provided on the bottom surface of the blind hole.

[0036] Symmetrically arranged driven seats 26 are provided on both sides of the driving block 251, and two locking rods 27 are positioned synchronously to effectively improve the clamping quality of the upper and lower molds.

[0037] Working principle: When processing auto parts, the upper mold mechanism 1 and the lower mold mechanism 2 are closed, and the cavity formed by the lower mold core 22 and the upper mold core is formed. The core pulling rod 24 in the lower mold base 21 is driven by the hydraulic drive cylinder 25 on the core pulling base 23 to achieve core pulling. When the core pulling rod 24 is driven by the hydraulic drive cylinder 25 and extends into the cavity, the drive block 251 moves with the cylinder rod of the hydraulic drive cylinder 25. The guide rod 2511 of the drive block 251 slides in the guide channel 261, causing the driven seat 26 to slide and rise in the core pulling base 23. The locking rod 27 moves upward and inserts into the blind hole of the upper mold base 11. The locking rod 27 exerts a squeezing force on the pressure sensor to detect the clamping status of the upper mold mechanism 1 and the lower mold mechanism 2. At the same time, the locking rod 27 prevents the upper mold mechanism 1 and the lower mold mechanism 2 from changing their relative positions, ensuring that the mold is clamped in place and effectively guaranteeing the clamping quality of the upper and lower molds.

[0038] Example 2

[0039] This embodiment further improves upon the above embodiment by providing the following technical solutions: the locking rod 27 includes a lower rod 271 and an upper rod 272. The upper rod 272 is threadedly connected to the lower rod 271 via a screw, and the lower rod 271 is fixedly mounted on the top surface of the driven seat 26. The upper rod 272 can be rotated to adjust the overall length of the locking rod 27, so that the top of the upper rod 272 can effectively squeeze the pressure sensor in the blind hole of the upper die holder 11.

[0040] A guide arc surface 2721 is provided on the top of the upper rod body 272 to effectively prevent the locking rod 27 from being damaged by collision when being plugged into the blind hole on the upper mold base 11 .

[0041] Example 3

[0042] This embodiment further provides the following improved technical solution based on the above embodiment: a notch 2722 is provided on one opposite side of the upper rod body 272 .

[0043] The notch 2722 forms a clamping plane on the side of the upper rod 272 , which facilitates the rotation of the upper rod 272 and further facilitates the rotation adjustment of the overall length of the locking rod 27 .

[0044] Example 4

[0045] This embodiment further makes the following improved technical solutions on the basis of the above embodiments: two parallel slide rails 232 are provided on the side wall of the core pulling seat 23, the driven seat 26 is slidably connected to the slide rails 232, and the two slide rails 232 are symmetrically arranged on both sides of the locking rod 27, which effectively ensures the smooth lifting and lowering of the driven seat 26, aligning it with the blind hole of the upper mold base 11 and inserting it.

[0046] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A processing device for high-quality core pulling of automotive parts, characterized in that: include: An upper die mechanism, comprising an upper die base and an upper die core, wherein the upper die core is disposed in the upper die base; The cam is fixedly mounted on the top of the drive means, and the cam is connected to the top of the drive means, wherein the cam is connected to the top of the drive means and the guide rail is fixedly mounted on the top of the drive means.

2. A processing device for high-quality core pulling of automotive parts according to claim 1, characterized in that: The locking rod comprises a lower rod body and an upper rod body, the upper rod body is threadedly connected to the lower rod body through a screw, and the lower rod body is fixedly mounted on the top surface of the driven seat.

3. A processing device for high-quality core pulling of automotive parts according to claim 2, characterized in that: The top of the upper rod body is provided with a guide cambered surface.

4. A processing device for high-quality core pulling of automotive parts according to claim 2, characterized in that: A notch is provided on an opposite side of the upper rod body.

5. The processing device for high-quality core pulling of automotive parts according to claim 1, characterized in that: The driven seats are symmetrically arranged on both sides of the driving block.

6. The processing device for high-quality core pulling of automotive parts according to claim 1, characterized in that: Two parallel slide rails are provided on the side wall of the core-pulling seat, and the driven seat is slidably connected to the slide rails.

7. A processing device for high-quality core pulling of automotive parts according to claim 6, characterized in that: The two slide rails are symmetrically arranged on both sides of the locking rod.

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