Locking type side die pull rod structure

Abstract

The utility model relates to the technical field of aluminum alloy hub casting, and discloses a locking type side die pull rod structure which comprises a pull rod body, a connecting part is arranged at the tail end of the pull rod body, a clamping part is arranged at the front end of the pull rod body, and an auxiliary plate used for abutting against a side die back plate is arranged on the pull rod body. And the auxiliary plate can cover more than 50% of the area of the side die back plate. The contact area and the stress area of the pull rod body and the side die back plate are obviously increased, and the problems that a traditional pull rod head is prone to causing local bending deformation of the side die back plate, and the casting quality and efficiency of products are affected are solved. The arrangement of the auxiliary plate locking through groove and the I-shaped lock bolt can lock the auxiliary plate and the side die back plate to form an integrated structure, the stress of the side die back plate during die opening and closing is further uniform, and the problems that when a wheel type with a large wheel width is produced, a pull rod body cannot be adjusted to the center height of the side die back plate, so that the side die is stressed to deflect, and the production efficiency is improved are solved. And the die-casting efficiency and quality are influenced.

Description

Technical Field

[0001] This utility model relates to the field of aluminum alloy wheel hub casting technology, and in particular to a locking side mold tie rod structure. Background Technology

[0002] Low-pressure casting molds for wheel hubs typically include a bottom mold, a top mold, side molds, and a mold frame. The movement of the side mold mainly relies on the side mold cylinder. The power of the side mold cylinder is transmitted to the side mold back plate connected to the side mold through the pull rod head, realizing the pushing and pulling movement of the side mold, thereby completing the mold opening and closing action.

[0003] In existing technology, the pull rod head is a slender rod-shaped structure with a small contact area with the side mold back plate. Due to the relatively large pushing and pulling force of the side mold cylinder, the side mold back plate is prone to local bending deformation, resulting in uneven stress on the side mold. This affects the fitting accuracy of the side mold with the top and bottom molds, easily causing casting defects such as casting flash, thus impacting die-casting efficiency. Furthermore, since the total height of the mold side mold varies with different wheel widths, the total height of the side mold back plate must also be adjusted accordingly. However, the adjustable range of the center height of the cylinder push rod of the side mold cylinder is limited. For high-width wheel types, it cannot be adjusted to the center height of the side mold back plate, causing the side mold to be subjected to skewed force during the push-pull movement of the pull rod head. This can easily result in the side mold being in an inclined state after closing, preventing a tight fit with the top mold, leading to casting flash and affecting die-casting efficiency and quality.

[0004] Therefore, developing a locking-type side mold tie rod structure for practical production is an urgent problem to be solved. Utility Model Content

[0005] The purpose of this utility model is to address the above-mentioned problems by providing a locking side mold tie rod structure, which solves the problem that the existing tie rod head easily causes local bending deformation of the side mold back plate, resulting in uneven force on the side mold, affecting the fitting accuracy of the side mold with the top mold and bottom mold, and easily producing casting defects such as casting flash, thus affecting the die casting efficiency and quality.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A locking type side mold tie rod structure includes a tie rod body, the tail end of which is provided with a connecting part for connecting to a side mold cylinder, the front end of which is provided with a locking part for locking a side mold back plate, and an auxiliary plate on the tie rod body for abutting against the side mold back plate. The distance between the auxiliary plate and the locking part is set according to the thickness of the side mold back plate, and the auxiliary plate can cover more than 50% of the area of ​​the side mold back plate.

[0008] Preferably, the auxiliary plate has a locking groove for locking the locking hole of the side mold back plate, which is used for locking the auxiliary plate and the side mold back plate. The I-shaped bolt passes through the locking groove and the locking hole to lock the auxiliary plate and the side mold back plate into an integral structure.

[0009] Preferably, the locking through groove is a bent structure corresponding to the locking hole, and the inflection point of the bent structure of the locking through groove is higher than its upper end.

[0010] Preferably, the auxiliary plate is screwed to the tie rod body, the front end of the tie rod body has an external thread, the auxiliary plate has a threaded hole, and the auxiliary plate is threadedly connected to the external thread of the tie rod body through the threaded hole.

[0011] Preferably, a lock nut is screwed onto the external thread corresponding to the auxiliary plate, for locking the position of the auxiliary plate on the external thread.

[0012] The beneficial effects of this utility model are as follows: By setting an auxiliary plate on the tie rod body to abut against the side mold back plate, this utility model significantly increases the contact and force-bearing area between the tie rod body and the side mold back plate, improving the problem that traditional tie rod heads easily cause local bending deformation of the side mold back plate, affecting the casting quality and efficiency of the product; the setting of the auxiliary plate locking slot and the I-shaped locking bolt can lock the auxiliary plate and the side mold back plate into an integrated structure, further evenly distributing the force on the side mold back plate when opening and closing the mold, improving the problem that when producing high-wheel-width wheels, the tie rod body cannot be adjusted to the center height of the side mold back plate, causing the side mold force to be skewed, affecting the die-casting efficiency and quality; the bent structure locking slot allows the I-shaped locking bolt to be reliably held in place by its own gravity, effectively avoiding the situation of the I-shaped locking bolt accidentally falling off, ensuring the stability and reliability of the mold opening and closing action. Attached Figure Description

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

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a schematic diagram of the planar structure of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the I-shaped locking bolt in this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the side mold back plate.

[0018] Figure 5 This is a three-dimensional structural diagram of the present invention in use.

[0019] Figure 6This is a plan view of the utility model in use.

[0020] In the diagram: 10--Pull rod body; 11--Connecting part; 12--Securing part; 13--Auxiliary plate; 14--Locking through groove; 15--I-shaped locking bolt; 16--External thread; 17--Locking nut; 20--Side mold; 21--Side mold back plate; 22--Securing hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] like Figure 1-6 As shown, a locking-type side mold tie rod structure includes a tie rod body 10. The tail end of the tie rod body 10 is provided with a connecting part 11 for connecting to a side mold cylinder, and the front end of the tie rod body 10 is provided with a locking part 12 for securing a side mold back plate 21. An auxiliary plate 13 is provided on the tie rod body 10 for abutting against the side mold back plate 21. The distance between the auxiliary plate 13 and the locking part 12 corresponds to the thickness of the side mold back plate 21. The auxiliary plate 13 can cover more than 50% of the area of ​​the side mold back plate 21 to increase the contact area between the tie rod body 10 and the side mold back plate 21. In use, the locking part 12 of the tie rod body 10 is inserted into the locking hole 22 of the side mold back plate 21, while the auxiliary plate 13 tightly fits against the side mold back plate 21, completing the connection and fixation between the tie rod body 10 and the side mold 20. The auxiliary plate 13 significantly increases the contact and force-bearing area between the tie rod body 10 and the side mold back plate 21, improving the problem that traditional tie rod heads easily cause local bending deformation of the side mold back plate 21, affecting the casting quality and efficiency of the product.

[0023] In a preferred embodiment, the auxiliary plate 13 is provided with a locking groove 14 corresponding to the locking hole 22 of the side mold back plate 21 for locking connection between the auxiliary plate 13 and the side mold back plate 21. The I-shaped bolt 15 passes through the locking groove 14 and the locking hole 22 to lock the auxiliary plate 13 and the side mold back plate 21 into an integral structure. This further evens out the force on the side mold back plate 21 when the mold is opened and closed, and improves the problem of the side mold 20 being biased due to the inability of the tie rod body 10 to be adjusted to the center height of the side mold back plate 21 when producing high wheel width wheels, which affects the die casting efficiency and quality.

[0024] Preferably, such as Figure 1The locking groove 14 is a bent structure corresponding to the locking hole 22, and the inflection point of the bent structure of the locking groove 14 is higher than its upper end. During locking, the I-shaped bolt 15 is inserted into the lower end of the locking groove 14 and travels along the bent structure of the locking groove 14 past the inflection point to the upper end of the locking groove 14, thus completing the locking of the auxiliary plate 13 and the side mold back plate 21. Because the inflection point of the locking groove 14 is higher than its upper end, the I-shaped bolt 15 can be reliably held in place by its own weight, effectively preventing the I-shaped bolt 15 from accidentally falling off and ensuring the stability and reliability of the mold opening and closing operation.

[0025] Preferably, such as Figure 2 As shown, the auxiliary plate 13 is screwed onto the tie rod body 10, making the distance between the auxiliary plate 13 and the locking part 12 adjustable, thereby meeting the usage requirements of the side mold back plate 21 with different thicknesses. Specifically, the front end of the tie rod body 10 is provided with an external thread 16, and the auxiliary plate 13 is provided with a threaded hole. The auxiliary plate 13 is threadedly connected to the external thread 16 of the tie rod body 10 through the threaded hole.

[0026] Preferably, a lock nut 17 is screwed onto the external thread 16 corresponding to the auxiliary plate 13, for locking the position of the auxiliary plate 13 on the external thread 16. When adjusting the distance between the auxiliary plate 13 and the locking part 12, the auxiliary plate 13 is rotated to produce a certain displacement in the axial direction of the pull rod body 10. Then, the lock nut 17 is tightened relative to the auxiliary plate 13 to fasten the auxiliary plate 13 onto the pull rod body 10, thus completing the adjustment of the distance between the auxiliary plate 13 and the locking part 12.

[0027] The above-disclosed embodiments are merely specific examples of this utility model, but this utility model is not limited thereto. For those skilled in the art, any modifications made without departing from the principle of this utility model should be considered as protected by this utility model.

Claims

1. A lock-type form tie rod structure, characterized by: The assembly includes a tie rod body (10), the tail end of which is provided with a connecting part (11) for connecting to the side mold cylinder, the front end of which is provided with a locking part (12) for locking the side mold back plate (21), and an auxiliary plate (13) for abutting the side mold back plate (21) on the tie rod body (10). The distance between the auxiliary plate (13) and the locking part (12) is set according to the thickness of the side mold back plate (21), and the auxiliary plate (13) can cover more than 50% of the area of ​​the side mold back plate (21).

2. The lockable formwork tie rod structure according to claim 1, wherein: The auxiliary plate (13) has a locking slot (14) in the locking hole (22) corresponding to the side mold back plate (21) for locking connection between the auxiliary plate (13) and the side mold back plate (21). The I-shaped bolt (15) passes through the locking slot (14) and the locking hole (22) to lock the auxiliary plate (13) and the side mold back plate (21) into an integral structure.

3. The lockable form tie rod structure of claim 2, wherein: The locking through groove (14) is a bent structure provided corresponding to the locking hole (22), and the inflection point of the bent structure of the locking through groove (14) is higher than its upper end.

4. The locking type side mold tie rod structure according to claim 1, characterized in that: The auxiliary plate (13) is screwed to the tie rod body (10). The front end of the tie rod body (10) is provided with an external thread (16). The auxiliary plate (13) is provided with a threaded hole. The auxiliary plate (13) is threadedly connected to the external thread (16) of the tie rod body (10) through the threaded hole.

5. The locking type side mold tie rod structure according to claim 4, characterized in that: A lock nut (17) is also screwed onto the external thread (16) corresponding to the auxiliary plate (13), which is used to lock the position of the auxiliary plate (13) on the external thread (16).

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