Sealing gasket forming die with anti-falling clamping jaws

Abstract

A sealing gasket forming die with an anti-disengaging clamping jaw comprises an upper die plate and a lower die plate, and an upper fixing plate, a base plate and an upper guiding body are sequentially fixed to the lower face of the upper die plate. Inclined sliding grooves are symmetrically formed in the two sides of the upper guide body, and upper sliding blocks are installed in the sliding grooves in a sliding mode; pressing nails are symmetrically arranged on the base plate in a penetrating manner, and the lower ends of the pressing nails are pressed on the top surfaces of the corresponding upper sliding blocks under the action of pressure springs above the pressing nails; a forming clamping edge is arranged at the lower end of the upper sliding block; a lower fixing plate and a discharging plate are sequentially arranged on the lower die plate, and the discharging plate is connected with the lower fixing plate through an elastic assembly, so that the discharging plate is arranged on the lower fixing plate in a floating mode. Lower modules and positioning pins are symmetrically arranged on the lower fixing plate and penetrate through the discharging plate in a sliding fit mode, and the lower modules correspond to the upper sliding blocks in a one-to-one mode. And a forming block is embedded on the lower module, is provided with a V-shaped forming groove matched with the forming clamping edge, and can axially rotate in the lower module. The die can be formed at a time and is high in production efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to mould technical field, especially a sealing washer forming die with anti -drop pawl. BACKGROUND

[0002] With the improvement of the engine sealing washer installation practicability and convenience requirement of host factory, the sealing washer manufacturer develops the sealing washer structure with anti -drop pawl.

[0003] Z-shaped bending forming process is the key technology to realize the pawl structure. However, the traditional Z-shaped bending die generally adopts step-by-step forming process, which needs to complete the forming of the anti-drop pawl bending angle through multiple processes in turn, resulting in low production efficiency, and the deviation of each process accumulates, making it difficult to ensure the final forming precision. In addition, the stability of the traditional die sliding block structure is insufficient, and no limiting mechanism is set, which is easy to cause the gasket deformation or die jamming due to angle deviation and sliding block interference during demolding. At the same time, the die adjustment depends on the overall replacement or reprocessing forming surface, the die changing downtime is long, which significantly reduces the production efficiency. UTILITY MODEL CONTENTS

[0004] The utility model solves the technical problem to provide a sealing washer forming die with anti-drop pawl which can be formed at one time and has high production efficiency.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A sealing washer forming die with anti-drop pawl, comprising an upper die plate and a lower die plate, characterized in that: an upper fixed plate, a pad plate and an upper guide body are fixed in sequence under the upper die plate; inclined sliding grooves are symmetrically arranged on both sides of the upper guide body, and upper sliding blocks are slidingly installed in the sliding grooves; pressure nails are symmetrically provided on the pad plate, and the lower ends of the pressure nails are pressed on the top surfaces of the corresponding upper sliding blocks under the action of the upper pressure springs, so as to realize the automatic reset of the upper sliding blocks; a forming clamping edge is arranged at the lower end of the upper sliding block, which is used to cooperate with the forming block to realize the forming of the anti-drop pawl;

[0007] A lower fixed plate and a discharge plate are sequentially arranged above the lower die plate, the discharge plate is connected with the lower fixed plate through elastic components, and the discharge plate is floatingly arranged on the lower fixed plate; a lower die block and a positioning pin are symmetrically arranged on the lower fixed plate, the lower die block and the positioning pin are respectively penetrated through the discharge plate through sliding fit, and the lower die block is corresponding to the upper sliding block one by one; a forming block is inlaid on the lower die block, the forming block is provided with a V-shaped forming groove matched with the forming clamping edge and can rotate axially in the lower die block, and the V-shaped forming groove is used for cooperating with the upper sliding block to realize the forming of the anti-falling clamping jaw.

[0008] As a further optimization, the upper end of the pressing nail is a large head end and is arranged in the through hole of the upper fixed plate together with the pressure spring, so as to realize the sliding limiting of the pressing nail.

[0009] As a further optimization, the inner side of the sliding groove is dovetail-shaped, the inner side of the upper sliding block is provided with a dovetail-shaped guide rail and is engaged with the inner side of the sliding groove, so as to realize the anti-falling function of the upper sliding block in the sliding process.

[0010] As a further optimization, a wedge-shaped clamping groove is arranged on the inner side of the upper end of the sliding groove of the upper guide body, and a positioning boss is arranged on the inner side of the upper end of the upper sliding block, so as to realize the positioning of the upper sliding block when the upper sliding block is pushed to slide to the initial position by the pressing nail.

[0011] As a further optimization, a cylindrical guide groove with an opening at the upper end is arranged on the lower die block, the forming block is inlaid in the guide groove, a limiting boss is arranged in the guide groove, the limiting boss is inserted into an arc-shaped groove arranged on the outer edge of the forming block, and the limiting boss is used for limiting the rotating range of the forming block, so as to ensure that the formed sealing gasket and the upper sliding block can be smoothly taken out, and to ensure that the forming block is in a position not interfering with the anti-falling clamping jaw in the next bending.

[0012] The utility model discloses the beneficial effects are:

[0013] 1. The V-shaped forming groove matched with the forming clamping edge arranged on the lower end of the upper sliding block and can rotate axially in the lower die block, can complete the forming operation of two adjacent bending angles of the anti-falling clamping jaw on the sealing gasket in single die closing, obviously promote production efficiency, and the modular structure can quickly adjust the forming angle, and adapt to diversified product demand.

[0014] 2. The inner side of the sliding groove is dovetail-shaped, the inner side of the upper sliding block is provided with a dovetail-shaped guide rail and is engaged with the inner side of the sliding groove, so as to realize the anti-falling function of the upper sliding block in the sliding process, and to ensure that the upper sliding block can still keep stable operation under high-speed stamping or vibration environment; the sliding groove is arranged obliquely, so that the upper sliding block can produce transverse displacement when stretching and retracting, thereby realizing automatic pressing and disengagement of the sealing gasket clamping jaw, avoiding interference with the lower die block and the forming block, and reducing the risk of sealing gasket deformation or die jam caused by interference.

[0015] 3, adopt multi-layer board assembly design, compact overall structure, low manufacturing cost, parts replacement and maintenance is convenient, can adapt to multiple models of press, is suitable in small and medium-sized enterprises popularization and application, has universal use value. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the structure schematic diagram of the mold opening state of the utility model.

[0017] Figure 2 is the structure schematic diagram of the mold closing state of the utility model.

[0018] Figure 3 is the A part enlarged view of Figure 2 .

[0019] Figure 4 is the three-dimensional exploded view of the upper guide body and the upper sliding block.

[0020] Figure 5 is the three-dimensional exploded view of the lower module and the forming block.

[0021] Figure 6 is the three-dimensional structure view of the discharge plate, the lower fixed plate and the sealing gasket after installation.

[0022] Figure 7 is the three-dimensional structure view of the bent sealing gasket.

[0023] In the drawing: the upper die plate 1, the upper fixed plate 2, the gasket plate 3, the upper guide body 4, the sliding groove 401, the wedge-shaped clamping groove 402, the upper sliding block 5, the forming clamping edge 501, the guide rail 502, the positioning boss 503, the press nail 6, the pressure spring 7, the lower fixed plate 8, the lower module 9, the guide recess 901, the limiting boss 902, the forming block 10, the forming recess 101, the arc-shaped recess 102, the positioning pin 11, the sealing gasket 12, the anti-dropping clamping jaw 121, the lower die plate 13, the discharge plate 14, the elastic assembly 15, the bolt 16. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model, apparently, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the protection scope of the utility model.

[0025] As Figures 1-6The utility model relates to a sealing gasket forming die with anti -drop claw, including upper die plate 1 and lower die plate 13, and upper fixed plate 2, backing plate 3 and upper guide body 4 are fixed in proper order through bolt under upper die plate 1, the cross section of upper guide body 4 is approximately oval and is provided with a taper along the longitudinal direction, and two groups of obliquely arranged sliding grooves 401 are symmetrically arranged on the both sides of upper guide body 4, and upper sliding block 5 is slidably installed in the sliding groove through clearance fit respectively, V-shaped forming clamping edge 501 is arranged on the outside of the lower end of upper sliding block 5, and is used for realizing the forming of anti -drop claw by cooperating with forming block 10.

[0026] The inside of sliding groove 401 is dovetail-shaped, and dovetail-shaped guide rail 502 is arranged on the inside of upper sliding block 5 and is mutually engaged with the inside of sliding groove 401, so as to realize the anti -drop function of upper sliding block 5 in the sliding process. The inside of the upper end of the sliding groove 401 of the upper guide body 4 is provided with a wedge-shaped clamping groove 402, and a positioning boss 503 is arranged on the inside of the upper end of the upper sliding block 5. When the upper sliding block 5 slides to the lower stop point, the positioning boss 503 is clamped on the wedge-shaped clamping groove 402, so as to realize the positioning of the upper sliding block 5 when sliding to the initial position under the pushing of the press pin 6.

[0027] Two pairs of perforations are symmetrically arranged on the backing plate 3 and are penetrated by the press pin 6 through clearance fit, and through holes are respectively arranged on the upper fixed plate 2 corresponding to the perforations, and a pressure spring 7 is respectively arranged in each through hole. The upper end of the press pin 6 is a large end and is arranged in the corresponding through hole together with the pressure spring 7, for realizing the sliding limit of the press pin 6. The press pin 6 corresponds to the upper sliding block 5 one by one, and the lower end of the press pin 6 is pressed on the top surface of the corresponding upper sliding block 5 under the action of the upper pressure spring 7, for realizing the automatic reset of the upper sliding block 5 after demolding.

[0028] The lower fixed plate 8 and the unloading plate 14 are sequentially arranged on the upper surface of the lower die plate 13, the lower fixed plate 8 is fixedly connected with the lower die plate 13 through bolts, and the unloading plate 14 is connected with the lower fixed plate 8 through a plurality of elastic components 15, so that the unloading plate 14 is floatingly arranged on the lower fixed plate 8. The elastic component 15 is composed of a connecting bolt and a spring, the lower end of the connecting bolt is clamped in the stepped hole of the lower die plate 13, the upper end of the connecting bolt passes through the lower fixed plate 8 and is threadedly connected with the unloading plate 14, the spring is sleeved on the connecting bolt and is clamped between the lower die plate 13 and the unloading plate 14.

[0029] Two groups of lower modules 9 and two positioning pins 11 are symmetrically press-fitted on the lower fixed plate 8, the lower module 9 and the positioning pin 11 penetrate the unloading plate 14 through sliding clearance fit, and the lower module 9 corresponds to the upper sliding block 5 one by one; a cylindrical guide groove 901 with an opening at the upper end is arranged on each lower module 9, and a forming block 10 is inlaid in the guide groove 901 through clearance fit, a V-shaped forming groove 101 matched with the V-shaped forming clamping edge 501 is arranged on the forming block 10 and can rotate axially in the lower module 9, for realizing the forming of the anti -drop claw 121 by cooperating with the upper sliding block 5.

[0030] A limiting boss 902 is arranged in the middle of the circumference of the guide groove 901, and the limiting boss 902 is inserted into an arc-shaped groove 102 arranged on the outer edge of the forming block 10. The central angle of the arc-shaped groove 102 is slightly larger than twice the central angle of the limiting boss 902, so as to limit the rotation range of the forming block 10 in the guide groove 901, to ensure that the formed sealing gasket 12 and the upper slide block 5 can be smoothly taken out, and to ensure that the forming block 10 is in a position not interfering with the anti-falling claw 121 when being bent next time.

[0031] The upper end of the positioning pin 11 is conical, and two positioning holes are symmetrically arranged on the upper guide body 4, and the positioning holes correspond to the positioning pins 11 one by one and are in clearance fit, for realizing guiding when clamping. The upper guide body 4 is fixed with the upper fixed plate 2 and the gasket 3 through a bolt 16 and two positioning pins symmetrically arranged on both sides of the bolt.

[0032] In use, the operation steps are as follows:

[0033] 1. Fix the upper mold plate 1 on the pressure head of the press, and fix the lower mold plate 13 on the workbench of the press; at this time, the forming clamping edge 501 at the lower end of the upper slide block 5 is in an extended state under the pushing of the pressing nail 6;

[0034] 2. Place the sealing gasket 12 in the groove on the middle of the unloading plate 14 and cover the two positioning pins 11, press the press operation button, and then the pressure head of the press presses the upper mold plate 1, which in turn drives the upper guide body 4 and the upper slide block 5 to move downward synchronously. After the upper slide block 5 contacts the sealing gasket 12, it remains in a state of close contact, and under the action of the obliquely arranged sliding groove 401, the forming clamping edge 501 gradually approaches the anti-falling claw 121. At the same time, the unloading plate 14 is pushed downward, and the forming block 10 contained therein is partially exposed. Under the guidance of the upper slide block 5, the forming block 10 rotates along the cylindrical guide groove 901 in the axial direction, and gradually rotates to the predetermined forming position, until the mold is completely closed and the pressure head stops pressing, realizing the forming of the anti-falling claw 121.

[0035] 3. After the anti-falling claw 121 is bent, the pressure head of the press drives the upper mold plate 1 to move upward, and the mold changes from a closed state to an open state. During the resetting process, the upper slide block 5 drives the sealing gasket 12 to separate from the forming block 10 and drives the forming block 10 to rotate and reset. After the pressure head of the press stops moving, the forming clamping edge 501 at the lower end of the upper slide block 5 returns to the extended state under the pushing of the pressing nail 6 and produces a horizontal displacement, which is convenient for recycling the sealing gasket 12. After the bending is completed, the formed sealing gasket is as shown in Figure 7

[0036] ​Although the embodiments of the present application have been disclosed as above, it is not limited to the application listed in the specification and the embodiments, and it can be applied to various fields suitable for the present application. For those skilled in the art, other modifications can be easily realized, and therefore the present application is not limited to specific details and the figures shown and described herein.

Claims

1. A gasket forming die with anti-coming-off clamping, comprising an upper die plate and a lower die plate, characterized in that: The upper fixed plate, the gasket and the upper guide body are fixed in sequence below the upper die plate; the obliquely arranged sliding grooves are symmetrically arranged on both sides of the upper guide body and the upper sliding blocks are slidingly installed in the sliding grooves; the pressing nails are symmetrically arranged on the gasket, the lower ends of the pressing nails are pressed on the top surfaces of the corresponding upper sliding blocks under the action of the upper pressure springs, and the automatic resetting of the upper sliding blocks is realized; the molding clamping edges are arranged on the lower ends of the upper sliding blocks, and are used for realizing the molding of the anti-falling clamping jaws in cooperation with the molding blocks; The lower fixed plate and the discharging plate are arranged in sequence on the lower die plate, the discharging plate is connected with the lower fixed plate through the elastic assembly, the discharging plate is floatingly arranged on the lower fixed plate; the lower blocks and the positioning pins are symmetrically arranged on the lower fixed plate, the lower blocks and the positioning pins are respectively penetratingly arranged in the discharging plate through the sliding cooperation, and the lower blocks correspond to the upper sliding blocks one by one; the molding blocks are inlaid on the lower blocks, the V-shaped molding grooves matched with the molding clamping edges are arranged on the molding blocks, the V-shaped molding grooves can rotate in the axial direction in the lower blocks, and are used for realizing the molding of the anti-falling clamping jaws in cooperation with the upper sliding blocks.

2. The gasket forming mold with a gasket release preventing pawl according to claim 1, characterized by: The upper end of the pressing nail is a large-end, and the pressing nail and the pressure spring are arranged in the through hole of the upper fixed plate, and are used for realizing the sliding limiting of the pressing nail.

3. The gasket forming mold with anti-coming-off clamping jaw according to claim 1, characterized in that: The inner side of the sliding groove is dovetail-shaped, the inner side of the upper sliding block is provided with a dovetail-shaped guide rail and is engaged with the inner side of the sliding groove, so as to realize the anti-falling function of the upper sliding block in the sliding process.

4. The gasket forming mold with a card pullout prevention claw according to claim 3, characterized by: The wedge-shaped clamping groove is arranged on the inner side of the upper end of the sliding groove of the upper guide body, and the positioning boss is arranged on the inner side of the upper end of the upper sliding block, so as to realize the positioning of the upper sliding block when the upper sliding block is sliding to the initial position under the pushing of the pressing nail.

5. The gasket forming mold with anti-coming-off clamping jaw according to any one of claims 1 to 4, characterized in that: The cylindrical guide groove with an opening on the upper end is arranged on the lower block, the molding block is inlaid in the guide groove, the limiting boss is arranged in the guide groove, the limiting boss is inserted into the arc-shaped groove arranged on the outer edge of the molding block, and is used for limiting the rotating range of the molding block, so as to ensure that the molded sealing gasket and the upper sliding block can be smoothly taken out, and to ensure that the molding block is in the position without interference with the anti-falling clamping jaw in the next bending.

Images