Lock stitch mold for automobile silencer shell

Abstract

A lower building block is arranged on the upper surface of a lower module, an air cylinder is arranged at one end of an upper module, the air cylinder is connected with an upper building block through a connecting rod, a first connecting block and a pressing block, the upper building block is matched with the lower building block, and the lower module is connected with the upper module in a matched mode through a spring and an adjusting bolt. The lower module is further in guide fit with a second connecting block in the upper module through a positioning guide rod, when the automobile silencer shell is subjected to compression molding, an upper building block is pushed through an air cylinder, the lower module can descend under the cooperation of a spring, and therefore the lock stitch mold is opened, and after the lock stitch mold is matched with a lock stitch mechanism to complete lock stitch, the air cylinder drives the upper building block to be recycled, and therefore the lock stitch mold is formed. The lower module ascends through the supporting force of the spring, at the moment, the outer surface of the mold and the automobile silencer shell are loosened, the mold can be easily separated from the automobile silencer shell, the automobile silencer shell does not need to be taken down through manual cooperation, convenience and efficiency are greatly improved, and meanwhile the labor cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of lock seam mould for automobile silencer, specifically is a lock seam mould for automobile silencer shell. BACKGROUND

[0002] The automobile silencer is used to reduce the noise produced by the engine of the motor vehicle, and the length difference of the two pipes is equal to half of the wavelength of the sound wave emitted by the automobile, so that the two sound waves are weakened by interference and mutual cancellation when superimposed, and the sound intensity is reduced, thereby reducing the sound, so as to achieve the effect of silencing.

[0003] The traditional lock seam mould for automobile silencer is mostly of an integral structure, and after the lock seam is completed, the automobile silencer shell needs to be manually taken off from the mould, which is low in efficiency, high in labor cost, and difficult to separate, therefore, an improved technology is needed to solve the problem existing in the prior art. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a lock seam mould for automobile silencer shell, when the lock seam is completed by cooperating with the lock seam mechanism, the upper arched block is recycled by the cylinder, the lower module is lifted through the supporting force of the spring, at this time, the outer surface of the mould is loose with the automobile silencer shell, so that the mould can be easily separated from the automobile silencer shell, the automobile silencer shell does not need to be manually taken off, the convenience and efficiency are greatly improved, the labor cost is reduced, and the problem in the above background technology is solved.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: A kind of lock stitch mould for automobile muffler shell, including upper module, lower module, upper tiling block, lower tiling block, connecting seat, cylinder, connecting rod, adjusting bolt and spring, the bottom of the one end of the upper module is provided with extension block, the extension block is through and is provided with through hole, the outer end of the extension block and at through hole are provided with cylinder, the piston rod of the cylinder is connected with connecting rod, the connecting rod is threaded in the through hole of extension block, the bottom of the extension block is connected with connecting seat by bolt, the lower surface of the upper module is provided with recess, the upper tiling block is arranged in the recess of upper module, the top end of the upper tiling block abuts the top end of the recess of upper module, the upper tiling block is close to the one end of extension block and is connected by bolt with pressure block, the pressure block is also connected with first connecting block by bolt, the one end of the connecting rod away from cylinder is connected with first connecting block, the upper surface of lower module is installed with lower tiling block by bolt, the upper surface of lower tiling block is inclined surface, the lower panel of the upper tiling block is inclined surface, the upper surface of the upper tiling block and the upper surface of lower tiling block are matched, the second connecting block is provided with the second connecting block by shaft pin in the recess of upper module and close to connecting seat one end, the lower surface of the second connecting block is provided with a plurality of positioning guide holes, the upper surface of lower module is provided with a plurality of positioning guide holes, the positioning guide hole of the second connecting block and the positioning guide hole of lower module are one-to-one correspondence and are matched by positioning guide rod, the recess of upper module and the one end away from connecting seat are provided with a plurality of screw holes, the one end away from connecting seat of lower module is provided with a plurality of counterbores, the counterbores and the screw holes of upper module are one-to-one correspondence and are connected by adjusting bolt, the bottom of the adjusting bolt is provided with head, the spring is arranged in the counterbores, the top end of the spring is supported in the top end of counterbores, the bottom end of the spring is supported in the head of adjusting bolt.

[0006] Preferably, the utility model provides a kind of lock stitch mould for automobile muffler shell, wherein, the lower tiling block and the second connecting block are provided with gasket between lower module.

[0007] Preferably, the utility model provides a kind of lock stitch mould for automobile muffler shell, wherein, the one end away from extension block of the upper module is provided with guide rod matched with lock stitch mechanism.

[0008] Preferably, the utility model provides a kind of lock stitch mould for automobile muffler shell, wherein, the one end away from cylinder of the connecting rod is provided with clamping slot, the one end close to cylinder of the first connecting block is provided with buckle, the buckle and the clamping slot of connecting rod are mutually clamped.

[0009] Compared with prior art, the utility model has the beneficial effects that:

[0010] The lower module upper surface is provided with a lower laying block, one end of the upper module is provided with a cylinder, the cylinder is connected with the upper laying block through a connecting rod, a first connecting block and a pressing block, the upper laying block is matched with the lower laying block, the lower module is matched and connected with the upper module through a spring and an adjusting bolt, and the lower module is guided and matched with a second connecting block in the upper module through a positioning guide rod; when the automobile silencer shell is pressed and formed, the upper laying block is pushed up by the cylinder, the lower module can be lowered under the cooperation of the spring, so that the lock seam mold is opened, after the lock seam is completed in cooperation with the lock seam mechanism, the upper laying block is recovered by the cylinder, the lower module rises under the supporting force of the spring, at this time, the outer surface of the mold is loose with the automobile silencer shell, so that the mold can be easily separated from the automobile silencer shell, and the automobile silencer shell does not need to be manually taken down, the convenience and efficiency are greatly improved, and the labor cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model;

[0012] Figure 2 It is a right view structural schematic diagram of the utility model; Figure 1

[0013] Figure 3 It is a sectional structural schematic diagram of A-A in the utility model; Figure 2

[0014] Figure 4 It is an enlarged structural schematic diagram of mark A in the utility model; Figure 3

[0015] Figure 5 It is an enlarged structural schematic diagram of mark B in the utility model; Figure 3

[0016] In the drawing: upper module 1, lower module 2, upper laying block 3, lower laying block 4, connecting seat 5, cylinder 6, connecting rod 7, adjusting bolt 8, spring 9, extension block 10, through hole 11, recess 12, pressing block 13, first connecting block 14, shaft pin 15, second connecting block 16, positioning guide rod 17, screw hole 18, counterbore 19, gasket 20, guide rod 21, buckle 22. DETAILED DESCRIPTION

[0017] The technical scheme of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are only 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 creative labor belong to the protection scope of the utility model;

[0018] ​​​​It should be noted that in the description of the utility model, it should be noted that the terms "inner", "outer", "upper", "lower", "two sides", "one end", "the other end", "left", "right" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0019] Please refer to Figures 1-5The utility model provides a kind of technical scheme: a lock stitch mould for automobile muffler shell, including upper module 1, lower module 2, upper block 3, lower block 4, connecting seat 5, cylinder 6, connecting rod 7, adjusting bolt 8 and spring 9, the bottom of one end of upper module 1 is provided with extension block 10, through hole 11 is opened in extension block 10, cylinder 6 is provided with the outer end of extension block 10 and at through hole 11, the piston rod of cylinder 6 is connected with connecting rod 7, connecting rod 7 is arranged in the through hole 11 of extension block 10, the bottom of extension block 10 is connected with connecting seat 5 by bolt, recess 12 is opened in the lower surface of upper module 1, upper block 3 is arranged in the recess 12 of upper module 1, the top end of upper block 3 is against the top end of the recess 12 of upper module 1, upper block 3 is close to one end of extension block 10 and is connected by bolt with pressure block 13, pressure block 13 is also connected with first connecting block 14 by bolt, one end of connecting rod 7 away from cylinder 6 is connected with first connecting block 14, the end of connecting rod 7 away from cylinder 6 is provided with clamping groove, first connecting block 14 is provided with buckle 22 close to cylinder 6, buckle 22 and the clamping groove of connecting rod 7 are mutually clamped, to realize the connection between first connecting block 14 and connecting rod 7, lower block 4 is installed on the upper surface of lower module 2 by bolt, gasket 20 is arranged between lower block 4 and second connecting block 16 and lower module 2, provide buffer between lower block 4 and lower module 2 by gasket 20, to ensure the service life of the whole, the upper surface of lower block 4 is inclined plane, the lower panel of upper block 3 is inclined plane, the upper surface of upper block 3 and the upper surface of lower block 4 are mutually matched, second connecting block 16 is provided with shaft pin 15 in the recess 12 of upper module 1 and close to one end of connecting seat 5, a plurality of positioning guide holes are opened in the lower surface of second connecting block 16, a plurality of positioning guide holes are opened in the upper surface of lower module 2, the positioning guide hole of second connecting block 16 and the positioning guide hole of lower module 2 are one-to-one correspondence and are matched by positioning guide rod 17, a plurality of screw holes 18 are opened in the recess 12 of upper module 1 and away from one end of connecting seat 5, a plurality of counterbores 19 are opened in the end of lower module 2 away from connecting seat 5, the counterbores 19 and the screw holes 18 of upper module 1 are one-to-one correspondence and are connected by adjusting bolt 8, the bottom of adjusting bolt 8 is provided with head, spring 9 is arranged in counterbores 19, the top end of spring 9 is supported in the top end of counterbores 19, the bottom of spring 9 is supported in the head of adjusting bolt 8, upper module 1 is provided with guide rod 21 matched with lock stitch mechanism away from one end of extension block 10, to be positioned with lock stitch mechanism.

[0020] Assembling method and using principle: firstly, the lower block 4 is installed on the upper surface of the lower module 2 through bolts, and the positioning guide rod 17 is inserted into the positioning guide hole of the lower module 2. The second connecting block 16 is installed in the groove 12 of the upper module 1 through the shaft pin 15, and then the air cylinder 6 is installed outside the extension block 10 of the upper module 1, and the connecting rod 7 connected with the piston rod of the air cylinder 6 passes through the through hole 11 of the extension block 10, the pressing block 13 is connected with the first connecting block 14 through bolts, then the buckle 22 of the first connecting block 14 is matched with the clamping groove of the connecting rod 7, and then the pressing block 13 is connected with one end of the upper block 3 through bolts. Finally, the connecting seat 5 is connected with the extension block 10 of the upper module 1, the upper module 1 is placed on the lower module 2, the top end of the positioning guide rod 17 is correspondingly matched with the positioning guide hole on the lower surface of the second connecting hole, and the spring 9 is sleeved on the adjusting bolt 8, the adjusting bolt 8 passes through the counterbore 19 of the lower module 2 and the lower block 4, and is matched and connected with the screw hole 18 of the upper module 1, and the assembling is completed. After the assembling is completed, the adjusting screw is rotated until the lower module 2 and the upper module 1 are tightly connected. When in use, the connecting seat 5 is connected with the liftable sliding table, the plate is supported on the mold seat, the piston rod of the air cylinder 6 pushes, so that the connecting rod 7 drives the upper block 3 to extrude the lower block 4, at this time, the lower module 2 is lowered by about 3mm through the action of the spring 9, at the same time, the lower module 2 will not shake through the positioning guide rod 17, then the lock seam mold is pressed down, so that the plate is wrapped outside the lock seam mold, so that the automobile muffler shell is preliminarily formed, then the lock seam mold advances and the top end of the automobile muffler shell is matched with the lock seam mechanism, the top end of the automobile muffler shell is processed, after the lock seam is completed, the piston rod of the air cylinder 6 is recovered, so as to drive the upper block 3 to retreat, the lower module 2 is lifted again through the force of the spring 9, at this time, the automobile muffler shell is loose between the lock seam mold, at this time, the lock seam mold is lowered and the automobile muffler shell is supported on the support, the lock seam mold retreats as a whole, and the automobile muffler shell remains on the support. The utility model discloses a reasonable structure, the lower module 2 is provided with the lower block 4 on the upper surface, one end of the upper module 1 is provided with the air cylinder 6, the air cylinder 6 is connected with the upper block 3 through the connecting rod 7, the first connecting block 14 and the pressing block 13, the upper block 3 is matched with the lower block 4, the lower module 2 is matched and connected with the upper module 1 through the spring 9 and the adjusting bolt 8, and the lower module 2 is guided and matched with the second connecting block 16 in the upper module 1 through the positioning guide rod 17. When the automobile muffler shell is pressed and formed, the upper block 3 is pushed by the air cylinder 6, and the lower module 2 can be lowered under the cooperation of the spring 9, so that the lock seam mold is opened, after the lock seam is completed, the upper block 3 is recovered under the drive of the air cylinder 6, the lower module 2 is lifted through the supporting force of the spring 9, at this time, the outer surface of the mold is loose with the automobile muffler shell, so that the mold can be easily separated from the automobile muffler shell, and the automobile muffler shell does not need to be manually taken down, so that the convenience and efficiency are greatly improved, and the labor cost is reduced.

[0021] The parts not described in detail in the utility model are the known technology of the skilled in the art.

[0022] Finally, it should be pointed out that the above specific embodiments are only used to illustrate the technical solutions of the utility model and are not limiting. Although the utility model has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that the technical solutions of the utility model can be modified and replaced equivalently without departing from the spirit and scope of the technical solutions of the utility model, and all of them should be covered in the scope of the claims of the utility model.

Claims

1. A lockseam die for use in an automotive muffler shell, characterized by: The utility model provides a kind of building block, including upper module (1), lower module (2), upper brick (3), lower brick (4), connecting seat (5), cylinder (6), connecting rod (7), adjusting bolt (8) and spring (9), the bottom of the one end of the upper module (1) is provided with extension block (10), the extension block (10) is through and is provided with through hole (11), the outer end of the extension block (10) and at through hole (11) is provided with cylinder (6), the piston rod of the cylinder (6) is connected with connecting rod (7), the connecting rod (7) is threaded in the through hole (11) of extension block (10), the bottom of the extension block (10) is connected with connecting seat (5) by bolt, the lower surface of the upper module (1) is provided with recess (12), the upper brick (3) is arranged in the recess (12) of upper module (1), the top end of the upper brick (3) is against the top end of the recess (12) of upper module (1), the upper brick (3) is close to the one end of extension block (10) and is provided with pressing block (13) by bolt connection, the pressing block (13) is also connected with first connecting block (14) by bolt, the one end of the connecting rod (7) away from cylinder (6) is connected with first connecting block (14), the upper surface of lower module (2) is installed with lower brick (4) by bolt, the upper surface of lower brick (4) is inclined surface, the lower panel of the upper brick (3) is inclined surface, the upper surface of the upper brick (3) and the upper surface of lower brick (4) are mutually matched, the one end of the upper module (1) in recess (12) and close to connecting seat (5) is provided with second connecting block (16) by shaft pin (15), the lower surface of the second connecting block (16) is provided with a plurality of positioning guide holes, the upper surface of lower module (2) is provided with a plurality of positioning guide holes, the positioning guide hole of the second connecting block (16) and the positioning guide hole of lower module (2) are one-to-one correspondence and are matched with each other by positioning guide rod (17), the recess (12) of the upper module (1) and the one end away from connecting seat (5) are provided with a plurality of screw holes (18), the one end away from connecting seat (5) of lower module (2) is provided with a plurality of counterbores (19), the counterbores (19) and the screw holes (18) of the upper module (1) are one-to-one correspondence and are matched and connected by adjusting bolt (8), the bottom of the adjusting bolt (8) is provided with head, the spring (9) is arranged in the counterbores (19), the top end of the spring (9) is supported on the top end of the counterbores (19), the bottom end of the spring (9) is supported on the head of adjusting bolt (8).

2. A seaming die for an automotive muffler shell according to claim 1 wherein: The lower brick (4) and the second connecting block (16) are provided with a gasket (20) between the lower module (2).

3. A seaming die for an automotive muffler shell according to claim 1 wherein: The upper module (1) is provided with a guide rod (21) matched with a lock seam mechanism away from the extension block (10) one end.

4. A seaming die for an automotive muffler shell according to claim 1 wherein: The connecting rod (7) is provided with a clamping groove away from the cylinder (6) one end, and the first connecting block (14) is provided with a buckle (22) close to the cylinder (6) one end, and the buckle (22) and the clamping groove of the connecting rod (7) are mutually clamped.

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