End face ribbing die

Abstract

The utility model discloses an end face ribbing die which comprises an upper die body and a lower die body which are oppositely arranged, a plurality of end face ribbing assemblies are arranged between the upper die body and the lower die body, and each end face inner hole ribbing assembly comprises a punch base embedded in the upper die body, a ribbing rod, a plurality of return rods, a plurality of bearing sliding blocks and a return spring. The upper die, the lower die and the lower die are coaxially arranged, the ribbing rod is coaxially embedded in the punch seat, the bearing sliding blocks are assembled on the side wall of the ribbing rod in a sliding mode, the return rods are inserted into the ribbing rod in a penetrating mode and abut against the upper end faces of the bearing sliding blocks, and the female die, the ejector rod and the driving rod are sequentially nested and coaxially arranged. The driving rod and the ribbing rod above the driving rod are coaxially arranged in an up-down opposite mode, and the top of the driving rod is inserted into the ribbing rod when the upper die and the lower die are closed, so that side face extrusion on the bearing sliding block is achieved. According to the utility model, bottom bearing during downward ribbing and smooth demolding during upward opening are realized through a sliding structure, so that the yield is improved while the efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a mould structure, concretely relates to a kind of end face rib pressing moulds. BACKGROUND

[0002] As Figure 1 The part commonly used automobile parts, its structure includes sleeve body 01, locating hole 02 in the bottom of body, flange edge 03 in the upper end of body, and multiple rib 04 annularly arranged on the flange end face, and the rib extends to the inner hole of body to form upper limit stop, the sleeve body of the part is stretched by drawing die and is integrally stretched, for the rib of end face, stamping die is generally used for stamping forming, however, the applicant found in test, pure stamping forming is not supported at bottom, and it is easy to cause the inner hole of body to deform, resulting in insufficient dimensional accuracy, and low yield. UTILITY MODEL CONTENTS

[0003] The utility model aims at providing a kind of end face rib pressing mould, the bottom load when being pressed rib downward is realized by sliding structure, the smooth demoulding when being opened upward, improve efficiency while improving yield.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of end face rib pressing mould, including the upper die and lower die of opposite arrangement, multiple end face rib assembly are equipped between the upper die and lower die, the end face inner hole rib assembly includes the punch seat embedded in the upper die, rib rod, multiple return rods, multiple bearing sliding blocks and return springs, the die, material ejecting rod and driving rod embedded in the lower die, the rib rod is coaxially embedded in the punch seat, multiple bearing sliding blocks are slidingly assembled on the side wall of rib rod, multiple return rods are inserted in rib rod and abut against the upper end surface of bearing sliding block, the return spring is embedded in the punch seat and located on the upper end of return rod, the die, material ejecting rod and driving rod are coaxially arranged in sequence, the driving rod and the rib rod above are arranged in upper and lower coaxial layout, the driving rod top is inserted into the rib rod when the upper die and lower die are closed, the side surface extrusion of bearing sliding block is realized, so that bearing sliding block moves out of the side wall of rib rod and abuts against the inside of part to form the bottom load of rib forming.

[0005] Preferably, the rib rod has a first slot hole and multiple second slot holes through from top to bottom, wherein the first slot hole is coaxially arranged in the middle of the rib rod, and the multiple second slot holes are annularly arranged around the first slot hole and parallel to the first slot hole, the rib rod outer wall is provided with multiple rib forming protrusions, each rib forming protrusion is provided with a sliding slot on the rib rod side wall below the rib forming protrusion, the sliding slot is through to the first slot hole and communicates with the second slot hole above and below, the bearing sliding block is slidingly assembled in the sliding slot, one end of the return rod is inserted into the second slot hole, the lower end surface of the return rod abuts against the bearing sliding block, and the other end of the return rod is provided with a mounting block, the mounting block is located in the punch seat and contacts the return spring in the punch seat.

[0006] Preferably, the upper surface of the bearing slider is provided with a spherical groove, and the lower end of the return rod is provided with a spherical end face which is in abutment with the spherical groove of the bearing slider.

[0007] Preferably, the return rod, the bearing slider and the rib forming protrusion are one-to-one corresponding and consistent with the number of ribs required by the end face of the part.

[0008] Preferably, the lower die sequentially comprises a lower bottom plate, a lower backing plate, a lower die plate, a die core mounting plate and a floating stripper plate from bottom to top, the material belt is located below the floating stripper plate, and a through via is formed on the floating stripper plate and opposite to the position of the part.

[0009] Preferably, the concave die is embedded in the die core mounting plate, the ejector rod is slidingly assembled in the concave die, one end of the driving rod is fixed in the lower bottom plate, the other end of the driving rod penetrates the ejector spring and the ejector rod and extends out of the concave die, and the upper end of the driving rod is a retractable insertion section.

[0010] Compared with the prior art, the end face ribbing die has the beneficial effects that: the end face ribbing die disclosed by the utility model realizes the extension of the bearing during the ribbing and the retraction during the stripping through the bearing slider and the corresponding linkage structure, thereby ensuring the improvement of the processing quality and the processing efficiency and not affecting the stripping. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 Part structure diagram processed by the utility model embodiment;

[0012] Figure 2 Sectional view of the utility model embodiment in an open state;

[0013] Figure 3 1 / 4 sectional view of the rib forming assembly in the utility model embodiment;

[0014] Figure 4 Partial structure diagram of the rib forming rod in the utility model embodiment;

[0015] Figure 5 is Figure 3 Enlarged view of A in the utility model embodiment;

[0016] Figure 6 is Figure 3 Enlarged view of B in the utility model embodiment;

[0017] Figure 7 Cooperation diagram of the return rod and the plurality of bearing sliders in the utility model embodiment;

[0018] Figure 8 Sectional view of the end face hole ribbing assembly before ribbing in the utility model embodiment;

[0019] Figure 9 Figure 2 is a sectional view of the end face inner hole rib pressing assembly in the embodiment of the utility model for pressing ribs. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0021] As shown in Figures 2-3 The utility model provides a kind of end face rib pressing mould, including upper die 1, lower die 2, guide column assembly 3 for being arranged between upper die and lower die to realize guiding, and multiple rib forming assembly 4 for being embedded in upper die and lower die to realize end face rib pressing processing.

[0022] Specifically, the upper die includes upper cover plate 11 and upper clamping plate 12 from top to bottom in sequence, and the lower die includes lower bottom plate 21, lower pad plate 22, lower die plate 23, die core mounting plate 24 and floating stripper plate 25 from bottom to top in sequence, and the part material belt is located below the floating stripper plate, and the through hole is formed in the floating stripper plate to correspond to the part position, so that the forming assembly in the upper die can press the part to form ribs, and the floating stripper plate can press the part material belt during forming to avoid horizontal displacement and vertical deformation, and the guide column assembly includes guide sleeve 31 embedded in the upper die and guide column 32 embedded in the lower die, and the upper die, the lower die and the guide column assembly are all conventional structures of stamping die, so no more structure is described.

[0023] The rib forming assembly includes punch seat 41 embedded in the upper die, rib pressing rod 42, multiple return rods 43, multiple bearing sliding blocks 44 and return springs 45, female die 46, ejector rod 47, driving rod 48 and ejector spring 49 embedded in the lower die, the rib pressing rod is coaxially embedded in the punch seat, multiple bearing sliding blocks are slidingly assembled on the side wall of the rib pressing rod, multiple return rods are inserted into the rib pressing rod and abut against the upper end surface of the bearing sliding block, and the return spring is embedded in the punch seat and located on the upper end of the return rod to press and reset the return rod, the female die, the ejector rod and the driving rod are coaxially arranged in sequence and are arranged in an upper-lower opposite coaxial layout with the rib pressing rod above, the female die is used for placing the part, the ejector rod supports the part from below, and the part is ejected from the female die by the ejector spring after processing, and the driving rod is inserted into the rib pressing rod when the upper and lower dies are closed to press the side surface of the bearing sliding block, so that the bearing sliding block moves out of the rib pressing rod and abuts against the inside of the part to form the bottom bearing of rib forming.

[0024] Specifically, the punch seat is embedded in the upper clamping plate, and the lower end of the punch seat extends out of the upper clamping plate. Figures 4-6 The first slot hole is coaxially arranged with the reinforcing rib rod in the middle, and the plurality of second slot holes are arranged around the first slot hole and parallel to the first slot hole. A plurality of reinforcing rib forming protrusions 423 are arranged on the outer wall of the reinforcing rib rod. Each reinforcing rib forming protrusion is provided with a sliding groove 424 penetrating the first slot hole on the side wall of the reinforcing rib rod below the reinforcing rib forming protrusion. The upper and lower end faces of the sliding groove are in communication with the upper and lower second slot holes. The reinforcing rib rod is embedded in the punch seat, and the lower end of the reinforcing rib rod extends out of the punch seat. The sliding groove is exposed outside the punch seat. The bearing sliding block is slidably arranged in the sliding groove. One end of the return rod is inserted into the second slot hole, and the lower end of the return rod abuts against the bearing sliding block. The other end of the return rod is provided with a mounting block 410. The mounting block is in contact with the return spring in the punch seat. When the lower end of the return rod is lifted by external force, the return spring is pressed upward. When the external force below the return rod disappears, the return spring presses the return rod to extend downward.

[0025] In order to facilitate the cooperation between the return rod and the bearing sliding block, the upper surface of the bearing sliding block is provided with a spherical groove 441, and the lower end of the return rod is provided with a spherical end face 431 abutting against the spherical groove of the bearing sliding block (as shown in Figure 7 Normally, the spherical end face abuts against the lowest point of the spherical groove. When the bearing sliding block is displaced by a transverse force, the return rod is lifted upward. At this time, the spherical end face of the return rod abuts against the side edge of the spherical groove. When the transverse force disappears, the return rod is pressed downward under the action of the return spring. The cooperation between the two spherical surfaces enables the bearing sliding block to slide transversely to return to the original position. At this time, the spherical end face abuts against the lowest point of the spherical groove again. The design of this structure enables the bearing sliding block to return effectively, and facilitates the subsequent stripping without the problem of the bearing sliding block being stuck.

[0026] The number of the return rod, the bearing sliding block and the reinforcing rib forming protrusion corresponds to each other, and is consistent with the number of parts requiring reinforcing ribs on the end face. In the embodiment of the drawings, there are three groups of reinforcing ribs. Therefore, the number of the return rod, the second slot hole, the sliding groove, the bearing sliding block and the reinforcing rib forming protrusion in the embodiment of the utility model is three groups.

[0027] The die is embedded in the mold core mounting plate, and the ejector rod is slidably arranged in the die. When the upper die is pressed down, the upper end of the ejector rod is inserted into the first slot hole, the bearing sliding block is simultaneously extruded to move outward transversely and protrude out of the reinforcing rib rod. When the upper die is lifted, the ejector rod is separated from the reinforcing rib rod, and the bearing sliding block moves inward transversely to retract into the reinforcing rib rod under the action of the return rod.

[0028] The followingFigures 8-9 The working principle of the end face rib pressing die is described:

[0029] The upper die moves down

[0030] With the upper die moving down, the thimble structure on the bottom surface of the upper die pre-presses the floating stripping plate, presses the material belt, and at the same time makes the part embedded into the concave die. At this time, the material ejecting rod is extruded and moves down, the driving rod end is inserted into the part, with the upper die continuing to move down, the end of the rib pressing rod is inserted into the part, at this time the driving rod is inserted into the rib pressing rod, the horizontal bearing sliding block is pushed out and abuts against the inner wall of the part, with the upper die continuing to move down, the rib forming protrusion of the rib pressing side wall is pressed on the end face of the part to form a rib, at this time the bearing sliding block is located at the bottom to bear the rib forming, avoiding deformation (as shown in Figure 8 ).

[0031] The upper die is lifted

[0032] After the processing is completed, the upper die is lifted, the driving rod is separated from the rib pressing rod, the bearing sliding block is retracted inward under the action of the return rod, and the rib pressing rod can be completely separated from the part. The material ejecting rod is upwardly extruded and the part is ejected out of the concave die under the action of the material ejecting spring, and at the same time the floating stripping plate is also lifted, so that the material belt can continue to move (as shown in Figure 9 ).

[0033] The end face rib pressing die disclosed by the utility model adopts the bearing sliding block and the corresponding linkage structure to realize the extension of the bearing during rib pressing and the retraction during stripping, which not only ensures the improvement of the processing quality and the processing efficiency, but also does not affect the stripping.

[0034] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An end-face ribbing die comprising an upper die and a lower die disposed opposite to each other, characterized in that: The upper die and the lower die are provided with a plurality of end face ribbing assemblies, the end face inner hole ribbing assembly comprises a punch seat embedded in the upper die, a ribbing rod, a plurality of return rods, a plurality of bearing sliding blocks and a return spring, a concave die embedded in the lower die, a material ejecting rod and a driving rod, the ribbing rod is coaxially embedded in the punch seat, a plurality of bearing sliding blocks are slidingly assembled on the side wall of the ribbing rod, a plurality of return rods are inserted in the ribbing rod and abut against the upper end surface of the bearing sliding block, the return spring is embedded in the punch seat and located at the upper end of the return rod, the concave die, the material ejecting rod and the driving rod are coaxially arranged in sequence, the driving rod is arranged in a coaxial and opposite arrangement with the ribbing rod above, the top of the driving rod is inserted into the ribbing rod when the upper die and the lower die are closed, so as to realize the lateral extrusion of the bearing sliding block and make the bearing sliding block move out of the side wall of the ribbing rod and abut against the inside of the part to form a ribbed bottom bearing.

2. An end face ribbing die according to claim 1, characterised in that: The ribbing rod has a first slot hole and a plurality of second slot holes penetrating from top to bottom, the first slot hole is coaxially arranged in the middle of the ribbing rod, the plurality of second slot holes are annularly arranged around the first slot hole and parallel to the first slot hole, a plurality of ribbing forming protrusions are arranged on the outer wall of the ribbing rod, a sliding slot penetrating the first slot hole is arranged on the side wall of the ribbing rod below each ribbing forming protrusion and is in communication with the second slot hole above and below, the bearing sliding block is slidingly assembled in the sliding slot, one end of the return rod is inserted in the second slot hole, the lower end surface of the return rod abuts against the bearing sliding block, and the other end of the return rod is provided with a mounting block which is in contact with the return spring in the punch seat.

3. An end face ribbing die according to claim 2, wherein: The upper surface of the bearing sliding block is provided with a spherical groove, and the lower end of the return rod is provided with a spherical end surface abutting against the spherical groove of the bearing sliding block.

4. An end face ribbing die according to claim 2, wherein: The number of the return rods, the bearing sliding blocks and the ribbing forming protrusions are one-to-one corresponding and consistent with the number of the part end face needing ribbing.

5. The end face ribbing die of claim 1 wherein: The lower die comprises a lower bottom plate, a lower pad plate, a lower die plate, a mold core mounting plate and a floating stripper plate from bottom to top, a material belt is located below the floating stripper plate, and a through hole is formed in the floating stripper plate above and opposite to the position of the part.

6. An end press method according to claim 1, wherein: The concave die is embedded in the mold core mounting plate, the material ejecting rod is slidingly assembled in the concave die, one end of the driving rod is fixed in the lower bottom plate, the other end penetrates through the material ejecting spring and the material ejecting rod and extends out of the concave die, and the upper end of the driving rod is a retractable insertion section.

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