Wax mold for automobile bumper mounting seat

Abstract

The utility model relates to the technical field of wax molds, in particular to a wax mold for an automobile bumper mounting seat, which comprises an upper mold and a lower mold, the upper mold comprises a first upper mold and a second upper mold, the lower mold comprises a first lower mold and a second lower mold, and the mold closing parting surfaces of the upper mold and the lower mold are Z-shaped. The mold closing surface of the upper mold II and the lower mold II is an inclined surface which is not perpendicular to the mold opening direction of the upper mold, a movable block I embedded with the upper mold II and a movable block II embedded with the lower mold II are respectively arranged on two sides of the inclined surface, and a movable block III is embedded with a connecting inclined surface of the lower mold I and the lower mold II; and the lower mold I is provided with a wax injection hole. The wax mould is manufactured in a combined mode, and the loose piece can be taken out along with a workpiece wax mould, so that high-quality manufacturing of the wax mould of a complex thin workpiece such as an automobile bumper mounting seat is realized, and subsequent procedures are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of wax molds, in particular to a wax mold for a mounting seat of an automobile bumper. Background Art

[0002] like Figure 1 The illustrated automobile bumper mounting seat has a complex structure and a thin body that is three-dimensionally unfolded in space, including an elongated upper plate and an L-shaped lower plate. The upper plate and the lower plate are not parallel and are connected by an irregular hollow inclined plate. The upper plate is provided with four upper mounting feet along a straight line, and the lower plate is provided with four lower mounting feet in a right-angle trapezoid. In addition, the mounting seat is very thin relative to the length, width, and height. For such complex parts, a casting process is usually used for production, and a wax mold casting process is further used for production to obtain high-quality casting products, reduce subsequent machining, and improve production efficiency. However, based on the complex structure of the part, how to make a wax mold of the part is the key to its production using the wax mold casting process. Utility Model Content

[0003] The purpose of the utility model is to address the deficiencies of the prior art and provide a wax mold for a car bumper mounting seat, which adopts a split manufacturing and then assembly method to make the wax mold, thereby reducing the difficulty of mold manufacturing, and at the same time adopts a movable block to facilitate mold opening and wax mold removal.

[0004] The utility model solves the technical problem by adopting the following technical scheme: a wax mold for a car bumper mounting seat, comprising an upper mold and a lower mold, the upper mold comprising an upper mold one and an upper mold two fixed together by positioning pins and bolts, the lower mold comprising a lower mold one and a lower mold two fixed together by positioning pins and bolts, the mold parting surface of the upper mold and the lower mold is Z-shaped, and the mold parting surface of the upper mold two and the lower mold two is an inclined surface that is not perpendicular to the mold opening direction of the upper mold, and a movable block one engaged with the upper mold two and a movable block two engaged with the lower mold two are respectively arranged on both sides of the inclined surface, the movable block one and the movable block two are both provided with a protrusion forming a hollow in the wax mold of the workpiece, the connecting inclined surface of the lower mold one and the lower mold two is engaged with a movable block three, the movable block three can form a triangular hollow on the inclined surface of the wax mold of the workpiece, the movable block three can be taken out upward along the inclined surface, and the lower mold one is provided with a wax injection hole.

[0005] Preferably, the lower mold is provided with four semicircular grooves for mounting the foot wax mold on the molding workpiece, two of which are equipped with inserts for forming through holes in the mounting foot wax mold, and the other two semicircular grooves are provided with cross runners connecting the runners. The lower mold is also provided with a third cross runner, and the wax injection hole is connected to the third cross runner.

[0006] Preferably, the upper mold 2 is provided with a cylinder, and the front end of the telescopic rod of the cylinder can abut against the movable block 1.

[0007] Preferably, the four side surfaces of the groove of the lower mold 2 engaging the movable block 2 are parallel to the mold opening direction, and the groove of the lower mold 3 engaging the movable block 3 is V-shaped and open along the mold opening direction.

[0008] Preferably, the backs of the movable block 1 and the movable block 2 are both provided with grooves for easy taking.

[0009] Preferably, weight-reducing grooves are provided on the back sides of the upper mold 1 and the upper mold 2.

[0010] The beneficial effects of the utility model are as follows: a wax mold mold for a car bumper mounting seat, comprising an upper mold and a lower mold, the upper mold comprising an upper mold one and an upper mold two fixed together by positioning pins and bolts, the lower mold comprising a lower mold one and a lower mold two fixed together by positioning pins and bolts, the mold parting surface of the upper mold and the lower mold is Z-shaped, and the mold joining surface of the upper mold two and the lower mold two is an inclined surface that is not perpendicular to the mold opening direction of the upper mold, and a movable block one engaged with the upper mold two and a movable block two engaged with the lower mold two are respectively arranged on both sides of the inclined surface, the movable block one and the movable block two are both provided with a protrusion forming a hollow in the workpiece wax mold, the connecting inclined surface of the lower mold one and the lower mold two is engaged with a movable block three, the movable block three can form a triangular hollow on the inclined surface of the workpiece wax mold, the movable block three can be taken out upward along the inclined surface, and the lower mold one is provided with a wax injection hole. The utility model adopts a combined mode to manufacture the wax mold, and the movable block therein can be taken out together with the workpiece wax mold, thereby realizing high-quality wax mold manufacturing of complex thin workpieces such as automobile bumper mounting seats and reducing subsequent processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional diagram of a vehicle bumper mounting seat of the utility model;

[0012] Figure 2 is a plan view of a wax pattern mold for an automobile bumper mount;

[0013] Figure 3 is a stereogram of a wax pattern mold for a bumper mount for an automobile;

[0014] Figure 4 It is a three-dimensional image of another perspective of a wax pattern mold for a car bumper mount;

[0015] Figure 5 yes Figure 4 A three-dimensional image after removing the upper mold;

[0016] Figure 6 yes Figure 5A three-dimensional image after removing the movable block 1;

[0017] Figure 7 yes Figure 6 A three-dimensional image after removing the movable block 2 and the movable block 3.

[0018] Description of reference numerals:

[0019] 1——upper die, 11——upper die one, 12——upper die two, 2——lower die, 21——lower die one, 211——wax injection hole, 212——insert, 213——third horizontal runner, 22——lower die two, 3——live block one, 4——live block two, 5——live block three, 6——cylinder. DETAILED DESCRIPTION

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, but the scope of implementation of the present invention is not limited thereto.

[0021] like Figures 2 to 7 As shown, a wax mold mold for a car bumper mounting seat of this embodiment includes an upper mold 1 and a lower mold 2, wherein the upper mold 1 includes an upper mold 11 and an upper mold 2 12 fixed together by positioning pins and bolts, and the lower mold 2 includes a lower mold 21 and a lower mold 22 fixed together by positioning pins and bolts, and the mold parting surface of the upper mold 1 and the lower mold 2 is Z-shaped, and the mold parting surface of the upper mold 12 and the lower mold 22 is not molded with the upper mold 1. The upper mold 21 is provided with an inclined plane perpendicular to the direction, and a movable block 3 engaged with the upper mold 2 12 and a movable block 2 4 engaged with the lower mold 2 22 are respectively arranged on both sides of the inclined plane. The movable block 1 3 and the movable block 2 4 are both provided with protrusions for forming hollows in the workpiece wax mold. The connecting inclined plane of the lower mold 1 21 and the lower mold 2 22 is engaged with a movable block 3 5. The movable block 3 5 can form a triangular hollow on the inclined plane of the workpiece wax mold. The movable block 3 5 can be taken out upward along the inclined plane. The lower mold 1 21 is provided with a wax injection hole 211.

[0022] This embodiment takes an automobile bumper mounting seat as an example to design a special wax mold. Because the workpiece is unfolded in a three-dimensional regular manner and is nearly Z-shaped when viewed from the side, this embodiment adopts a modular design to realize the wax mold production of the workpiece through a combination method, and in order to facilitate mold opening and wax mold removal, a plurality of movable blocks are designed.

[0023] When the mold is closed, in order to prevent the movable piece 3 engaged with the upper mold 12 from falling, the upper mold 12 is provided with a cylinder 6, and the front end of the telescopic rod of the cylinder 6 extends out to press against the movable piece 3.

[0024] In order to minimize the subsequent processes, such as machining and drilling, the movable block 1 3 and the movable block 2 4 are provided with hole pins at the four lower mounting feet of the workpiece in addition to the lower bottom plate of the workpiece; in addition, the lower mold 1 is also provided with four semicircular grooves for mounting the foot wax mold on the molded workpiece, two of which are equipped with inserts 212 forming through holes in the mounting foot wax mold, and the other two semicircular grooves are provided with cross runners connecting the runners. The cross runner has a circular cross section, and the semicircular grooves, inserts and cross runners are located on the mating surfaces of the upper and lower molds. Therefore, the upper mold 1 1 is also provided with semicircular grooves, grooves for accommodating inserts and grooves in the upper half of the cross runner at the same position.

[0025] After the mold is closed, wax paste is injected into the mold cavity from the wax injection hole 211; in order to allow the molten metal to quickly flow into the mold cavity during casting, the lower mold 21 is also provided with a third runner 213, the cross-section of the third runner 213 is rectangular, and the wax injection hole 211 is connected to the third runner 213.

[0026] When the mold is opened, the cylinder 6 controls the retractable rod to retract and no longer interferes with the movable block 3. In this way, when the upper mold 1 rises in the vertical direction, because the direction in which the movable block 3 is separated from the wax mold embedded with it is inconsistent with the rising direction of the upper mold 1, the movable block 3 is blocked by the wax mold and its own gravity, and the movable block 3 can be separated from the upper mold 1 and remain on the wax mold. When the mold opening is completed, the movable block 3 can be removed from the wax mold.

[0027] When demolding the wax mold, it is necessary to take out the movable block 2 4 and the movable block 3 5 together with the wax mold. The wax mold taking-out direction is vertical. In order to facilitate the removal of the movable block 2 4 and the movable block 3 5 together with the wax mold, the four sides of the groove of the lower mold 2 22 that engages with the movable block 2 4 are parallel to the mold opening direction, and the groove of the lower mold 2 22 that engages with the movable block 3 5 is V-shaped and open along the mold opening direction; after taking out the wax mold, separate the movable block 2 4 and the movable block 3 5 from the wax mold.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, and for the convenience of describing the technical solution, the front, rear, left, right, top, middle, and bottom directions adopted are based on the settings in the accompanying drawings, rather than limiting the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A wax mold for a car bumper mounting seat, characterized in that: It includes an upper mold and a lower mold, the upper mold includes an upper mold one and an upper mold two fixed together by positioning pins and bolts, the lower mold includes a lower mold one and a lower mold two fixed together by positioning pins and bolts, the mold parting surface of the upper mold and the lower mold is Z-shaped, and the mold joining surface of the upper mold two and the lower mold two is an inclined surface that is not perpendicular to the mold opening direction of the upper mold, and a movable block one for engaging with the upper mold two and a movable block two for engaging with the lower mold two are respectively arranged on both sides of the inclined surface, the movable block one and the movable block two are both provided with a protrusion forming a hollow in the wax mold of the workpiece, the connecting inclined surface of the lower mold one and the lower mold two is embedded with a movable block three, the movable block three can form a triangular hollow on the inclined surface of the workpiece wax mold, the movable block three can be taken out upward along the inclined surface, and the lower mold one is provided with a wax injection hole.

2. A wax mold for a car bumper mounting seat according to claim 1, characterized in that: The lower mold is provided with four semicircular grooves for mounting the foot wax mold on the molding workpiece, two of which are equipped with inserts for forming through holes in the mounting foot wax mold, and the other two semicircular grooves are provided with cross runners connecting the runners. The lower mold is also provided with a third cross runner, and the wax injection hole is connected to the third cross runner.

3. The wax mold for a car bumper mounting seat according to claim 1, characterized in that: The upper die 2 is provided with a cylinder, and the front end of the telescopic rod of the cylinder can abut against the movable block 1.

4. The wax mold for a car bumper mounting seat according to claim 1, characterized in that: The four side surfaces of the groove of the lower mold 2 engaging the movable block 2 are parallel to the mold opening direction, and the groove of the lower mold 3 engaging the movable block 3 is V-shaped and open along the mold opening direction.

5. The wax mold for a car bumper mounting seat according to claim 1, characterized in that: The backs of the movable block 1 and the movable block 2 are both provided with grooves for easy taking.

6. The wax mold for a vehicle bumper mounting seat according to claim 1, characterized in that: The back sides of the upper mold 1 and the upper mold 2 are provided with weight-reducing grooves.

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