A flanging and riveting die assembly

Abstract

The utility model discloses a kind of flanging and riveting mould assemblies, the flanging and riveting mould assembly includes guide sleeve base plate, the both ends of guide sleeve base plate are equipped with guide sleeve, the middle part of guide sleeve base plate is equipped with adapter flange, the upper end of adapter flange is equipped with pressure sensor, lower end is set below guide sleeve base plate and is connected with inside flanging upper die, sensor connector is installed on pressure sensor, electric cylinder connecting rod is installed on the upper end of sensor connector.The flanging and riveting mould assembly can be inwards flanged to the automobile shock absorber hanger loop port with bushing being pressed and mounted under the downward driving of rear-end electric cylinder, and the flanging stability is high.

Description

Technical Field

[0001] This utility model relates to the field of riveting, specifically to a flange riveting die assembly. Background Technology

[0002] The shock absorber is a core component of the car suspension system. It is a vibration damping device whose main function is to attenuate the vibration caused by road impact, improve ride comfort and handling safety. The ends of the car shock absorber need to be pressed into the hanging ring with rubber bushings and then subjected to flanging and riveting operations.

[0003] Patent CN204135144U discloses a rod protective sleeve inner flange pressing device, including a press and a pressing plate moving device located on the left side of the press. The press includes a top plate, a bottom plate, a lifting plate, a guide column, a hydraulic cylinder, an inner flange pressing head, a lower mold base and a lower mold. The pressing plate moving device includes a base, a lifting cylinder base, a lifting cylinder, a transverse cylinder base, a transverse cylinder, a bracket and a pressing plate.

[0004] The lifting plate in the inner flange pressing device of the rod protective sleeve is directly connected to the cylinder shaft of the hydraulic cylinder, and no pressure sensor is installed. Furthermore, there is no guide sleeve structure between the two ends of the lifting plate and the guide column, which leads to low stability during the flange pressing process. Utility Model Content

[0005] The purpose of this invention is to provide a flanging and riveting die assembly. This flanging and riveting die assembly, driven downward by the rear electric cylinder, can flanging the end of the automotive shock absorber with a bushing inward, resulting in high flanging stability.

[0006] To achieve the above objectives, this utility model provides a flanging and riveting die assembly, which includes a guide sleeve base plate, guide sleeves installed at both ends of the guide sleeve base plate, an adapter flange installed in the middle of the guide sleeve base plate, a pressure sensor installed at the upper end of the adapter flange, and an inner flanging upper die connected to the lower end of the adapter flange located below the guide sleeve base plate. A sensor connector is installed on the pressure sensor, and an electric cylinder connecting rod is installed at the upper end of the sensor connector.

[0007] Preferably, the guide sleeve seat plate has a central hole, and the transition flange includes an upper flange plate and a lower flange plate; the bottom of the upper flange plate has an upper protrusion nested in the central hole, and the top of the lower flange plate has a lower protrusion nested in the central hole; the upper flange plate has a first countersunk hole penetrating the upper protrusion, and the lower protrusion has a first threaded hole, and a first bolt threaded into the first threaded hole is disposed in the first countersunk hole.

[0008] Preferably, the guide sleeve base plate is provided with second screw holes at both ends, the upper outer side of the guide sleeve is provided with a first external thread that is screwed into the second screw holes, and a limit ring is provided on the guide sleeve.

[0009] Preferably, the lower end of the sensor connector is provided with a stud, and the center of the pressure sensor is provided with a third threaded hole that is threaded to the stud.

[0010] Preferably, the pressure sensor is surrounded by a plurality of second countersunk holes; the upper end of the adapter flange is provided with a plurality of fourth threaded holes corresponding to the second countersunk holes, and a second bolt is provided in the second countersunk hole to be threaded into the fourth threaded hole.

[0011] Preferably, the upper end of the sensor connector is provided with a T-slot, the side of the T-slot is provided with an opening, the lower end of the electric cylinder connecting rod is provided with a T-shaped insert, and the upper end of the electric cylinder connecting rod is provided with a fifth screw hole.

[0012] Preferably, the lower end of the adapter flange is provided with a central column, and the outer side of the central column is provided with a second external thread; the upper end of the inner flange upper mold is provided with a connecting shaft, and a threaded sleeve that is threadedly engaged with the second external thread is rotatably provided on the connecting shaft.

[0013] Preferably, the upper end of the connecting shaft is provided with a plug shaft, the lower end of the central column is provided with a plug hole that mates with the plug shaft, the screw sleeve is rotatably sleeved on the plug shaft, and a limit ring is provided on the plug shaft.

[0014] Preferably, the bottom of the inner flange upper mold is provided with a flange mold opening, and the side of the flange mold opening is provided with a notch for avoiding the end rod of the automobile shock absorber.

[0015] According to the above technical solution, the present invention provides a flanging and riveting die assembly, which includes a guide sleeve base plate, guide sleeves installed at both ends of the guide sleeve base plate, a transition flange installed in the middle of the guide sleeve base plate, a pressure sensor installed at the upper end of the transition flange, and an inner flanging upper die connected to the lower end of the transition flange located below the guide sleeve base plate. A sensor connector is installed on the pressure sensor, and an electric cylinder connecting rod is installed at the upper end of the sensor connector.

[0016] The flanged riveting die assembly has the following advantages: 1. By slidingly engaging the guide sleeves installed at both ends with the two columns at the rear end of the riveting machine die frame structure, and connecting with the rear electric cylinder, it can stably drive the guide sleeve seat plate downwards; 2. By engaging the inner flanged upper die with the lifting ring flanged lower die installed on the moving lower die structure of the riveting machine, the lifting ring port of the automotive shock absorber with the bushing can be flanged inwards, improving the installation reliability of the bushing and reducing the chance of slippage; 3. The pressure sensor installed at the upper end of the adapter flange can provide real-time pressure feedback, avoiding pressure damage to the automotive shock absorber lifting ring due to excessive pressure in abnormal situations; 4. A sensor connector and the electric cylinder connecting rod are used to achieve quick connection.

[0017] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the flanging and riveting die assembly;

[0020] Figure 2 This is a front view structural schematic diagram of a preferred embodiment of the flanging and riveting die assembly;

[0021] Figure 3 This is a side view of a preferred embodiment of the flanging and riveting die assembly;

[0022] Figure 4 yes Figure 3 A schematic diagram of the AA cross-sectional structure;

[0023] Figure 5 This is a partial cross-sectional diagram of the mold opening at the inner flange.

[0024] Figure 6 This is a schematic diagram of the overall assembly structure of the bushing riveting machine.

[0025] Explanation of reference numerals in the attached figures

[0026] 1-Riveting machine mold frame structure; 101-Column; 2-Riveting machine moving lower mold structure; 3-Bushel pressing mold assembly; 401-Guide sleeve seat plate; 402-Upper flange plate; 403-Pressure sensor; 404-Sensor connector; 405-Electric cylinder connecting rod; 406-Guide sleeve; 407-Connecting shaft; 408-Inner flange upper mold; 409-Lower flange plate; 410-Second countersunk hole; 411-First bolt; 412-Insertion shaft; 413-Center column; 414-Limiting ring; 415-Stud; 416-Fifth screw hole; 417-Limiting ring; 418-T-slot; 419-T-slot block; 420-Threaded sleeve; 421-Flanged mold opening; 422-Notch; 5-Guide pressing mold assembly; 6-Reverse pressing mechanism; 7-Auxiliary support assembly; 8-Cylinder; 9-Front-end electric cylinder; 10-Rear-end electric cylinder. Detailed Implementation

[0027] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0028] In this utility model, unless otherwise stated, directional terms such as "up, down, left, right, front, back, inside, outside" in the terminology only represent the orientation of the term in its conventional use or are common terms understood by those skilled in the art, and should not be regarded as a limitation on the term.

[0029] See Figure 1-5 The flanged riveting die assembly shown includes a guide sleeve base plate 401, with guide sleeves 406 installed at both ends of the guide sleeve base plate 401. A transition flange is installed in the middle of the guide sleeve base plate 401. A pressure sensor 403 is installed at the upper end of the transition flange, and the lower end is located below the guide sleeve base plate 401 and connected to an inner flanged upper die 408. A sensor connector 404 is installed on the pressure sensor 403, and an electric cylinder connecting rod 405 is installed at the upper end of the sensor connector 404.

[0030] See Figure 6The assembly structure diagram of the bushing riveting machine shown is as follows: In the assembly structure of the bushing riveting machine, the movable lower die structure is mounted on a linear slide rail via multiple connecting sliders. A cylinder 8 is mounted on the cylinder 8 mounting plate, and the cylinder 8 connects to the movable lower die structure, enabling it to switch between the bushing pressing station and the riveting station. The guide die assembly 5 has a portal frame structure, spanning above the bushing pressing station. Guide rods on both sides slide and extend within corresponding bushings. The movable lower die structure has a lower die groove for positioning the workpiece, and the guide die assembly 5 has a corresponding upper die groove for positioning the workpiece. After the guide die assembly 5 moves downwards, the lower die groove and the upper die groove can... The workpiece is positioned within the mold, and the bushing to be pressed is placed into the positioning through hole on the upper mold groove to complete the preparation work. Then, the bushing pressing mold assembly 3 is guided and slid downward by the front electric cylinder 9, and the bushing is pressed into the workpiece by the corresponding pressure rod. Since the flange at the bottom of the bushing needs to be pressed below the hole in the workpiece, the upper end of the bushing needs to be over-pressed. After over-pressing the bushing, the upper top shaft on the reverse pressing mechanism 6 is used to push the over-pressed bushing back to the normal position, so that the upper flange of the bushing is pressed out. Finally, the lower mold structure is moved to the riveting station by the cylinder 8 pulling back. The front electric cylinder 9 drives the flanging and riveting mold assembly to slide downward and press down to perform riveting. When the workpiece is an automobile shock absorber, the main body of the automobile shock absorber is supported by the installed auxiliary support assembly 7, and the lifting ring of the automobile shock absorber is positioned between the upper and lower mold grooves.

[0031] Therefore, the flanged riveting die assembly slides with the two columns 101 at the rear end of the riveting machine die frame structure 1 through the guide sleeves 406 installed at both ends. By connecting with the rear electric cylinder 10, it can stably drive the guide sleeve seat plate 401 downward. The inner flanged upper die 408 cooperates with the lifting ring flanged lower die installed on the moving lower die structure 2 of the riveting machine to flange the lifting ring port of the automobile shock absorber with the bushing inward, improve the installation reliability of the bushing and reduce the probability of slippage. The pressure sensor 403 installed at the upper end of the adapter flange can provide real-time pressure feedback to avoid pressure damage to the automobile shock absorber lifting ring in case of abnormal conditions. The sensor connector 404 and the electric cylinder connecting rod 405 are used to achieve quick connection.

[0032] In this embodiment, the guide sleeve seat plate 401 has a central hole, and the transition flange includes an upper flange plate 402 and a lower flange plate 409. The bottom of the upper flange plate 402 has an upper protruding post nested in the central hole, and the top of the lower flange plate 409 has a lower protruding post nested in the central hole. The upper flange plate 402 has a first countersunk hole penetrating the upper protruding post, and the lower protruding post has a first threaded hole. A first bolt 411 is screwed into the first threaded hole. The central hole serves to limit the movement of the upper flange plate 402 and the lower flange plate 409. Of course, a foolproof structure can also be provided between the upper and lower protruding posts and the sidewall of the central hole to prevent relative rotation. During assembly, after placing the upper flange plate 402 and the lower flange plate 409 in place, the bolt 411 is screwed downwards until it is tightened.

[0033] In this embodiment, the guide sleeve base plate 401 has second threaded holes at both ends, and the upper outer side of the guide sleeve 406 has a first external thread that engages with the second threaded holes. A limiting ring 417 is provided on the guide sleeve 406. This design enables a detachable connection between the guide sleeve 406 and the guide sleeve base plate 401, and the limiting ring 417 limits the spiral depth, improving assembly accuracy.

[0034] In this embodiment, a stud 415 is provided at the lower end of the sensor connector 404, and a third threaded hole is provided at the center of the pressure sensor 403 for screwing into the stud 415. This arrangement allows for quick installation of the sensor connector 404 via the screwing connection between the stud 415 and the third threaded hole.

[0035] In this embodiment, a plurality of second countersunk holes 410 are provided around the pressure sensor 403; the upper end of the adapter flange is provided with a plurality of fourth threaded holes corresponding to the second countersunk holes 410, and a second bolt is provided in the second countersunk hole 410 to be threaded into the fourth threaded hole. With this arrangement, the pressure sensor 403 is installed on the upper end of the adapter flange by means of a second helical screw threaded into the fourth threaded hole.

[0036] In this embodiment, the upper end of the sensor connector 404 is provided with a T-slot 418, the side of which is open. The lower end of the electric cylinder connecting rod 405 is provided with a T-shaped insert 419, and the upper end of the electric cylinder connecting rod 405 is provided with a fifth screw hole 416. With this arrangement, the T-shaped insert 419 is inserted into the T-slot 418 from the opening using a side-insertion method, achieving rapid assembly. The fifth screw hole 416 at the upper end enables a quick screw connection with the connection part at the rear end of the electric cylinder 10 shaft.

[0037] In this embodiment, a central post 413 is provided at the lower end of the adapter flange, and a second external thread is provided on the outer side of the central post 413; a connecting shaft 407 is provided at the upper end of the inner flange upper mold 408, and a threaded sleeve 420 that rotatably engages with the second external thread is provided on the connecting shaft 407. With this arrangement, by rotating the threaded sleeve 420, it is screwed onto the second external thread on the outer side of the central post 413, achieving a quick connection.

[0038] In this embodiment, a plug shaft 412 is provided at the upper end of the connecting shaft 407, and a plug hole that mates with the plug shaft 412 is provided at the lower end of the central column 413. The threaded sleeve 420 is rotatably sleeved on the plug shaft 412, and a limit ring 414 is provided on the plug shaft 412. The limit ring 414 ensures that the threaded sleeve 420 can only rotate and cannot move axially.

[0039] In this embodiment, the bottom of the inner flange upper mold 408 is provided with a flange opening 421, and the side of the flange opening 421 is provided with a notch 422 for avoiding the end rod of the automobile shock absorber. With the flange opening 421, when the upper end of the lifting ring contacts the flange opening 421, it will deform inward under the guidance of the flange opening 421, and the notch 422 is used to avoid the end rod of the automobile shock absorber.

[0040] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0041] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0042] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A flanging and riveting die assembly, characterized in that, The flanged riveting die assembly includes a guide sleeve base plate (401), with guide sleeves (406) installed at both ends of the guide sleeve base plate (401). A transition flange is installed in the middle of the guide sleeve base plate (401). A pressure sensor (403) is installed at the upper end of the transition flange, and the lower end is located below the guide sleeve base plate (401) and connected to an inner flanged upper die (408). A sensor connector (404) is installed on the pressure sensor (403), and an electric cylinder connecting rod (405) is installed at the upper end of the sensor connector (404).

2. The flanging and riveting die assembly according to claim 1, characterized in that, The guide sleeve seat plate (401) has a central hole in the center, and the transition flange includes an upper flange plate (402) and a lower flange plate (409); The bottom of the upper flange plate (402) is provided with an upper protruding post nested in the central hole, and the top of the lower flange plate (409) is provided with a lower protruding post nested in the central hole. The upper flange plate (402) is provided with a first countersunk hole that penetrates the upper protrusion, and the lower protrusion is provided with a first screw hole. A first bolt (411) is provided in the first countersunk hole and screwed into the first screw hole.

3. The flanging and riveting die assembly according to claim 1, characterized in that, The guide sleeve base plate (401) is provided with second screw holes at both ends, and the upper outer side of the guide sleeve (406) is provided with a first external thread that is screwed into the second screw hole. The guide sleeve (406) is provided with a limit ring (417).

4. The flanging and riveting die assembly according to claim 1, characterized in that, The lower end of the sensor connector (404) is provided with a stud (415), and the center of the pressure sensor (403) is provided with a third threaded hole that is screwed to the stud (415).

5. The flanging and riveting die assembly according to claim 1, characterized in that, The pressure sensor (403) is surrounded by a plurality of second countersunk holes (410); The upper end of the adapter flange is provided with a plurality of fourth screw holes corresponding to the second countersunk hole (410), and a second bolt is provided in the second countersunk hole (410) to be screwed into the fourth screw hole.

6. The flanging and riveting die assembly according to claim 1, characterized in that, The upper end of the sensor connector (404) is provided with a T-slot (418), the side of the T-slot (418) is provided with an opening, the lower end of the electric cylinder connecting rod (405) is provided with a T-shaped insert (419), and the upper end of the electric cylinder connecting rod (405) is provided with a fifth screw hole (416).

7. The flanging and riveting die assembly according to claim 1, characterized in that, The lower end of the adapter flange is provided with a central column (413), and the outer side of the central column (413) is provided with a second external thread; The upper end of the inner flange upper die (408) is provided with a connecting shaft (407), and the connecting shaft (407) is rotatably provided with a threaded sleeve (420) that is threadedly engaged with the second external thread.

8. The flanging and riveting die assembly according to claim 7, characterized in that, The upper end of the connecting shaft (407) is provided with a plug shaft (412), the lower end of the central column (413) is provided with a plug hole that mates with the plug shaft (412), the screw sleeve (420) is rotatably sleeved on the plug shaft (412), and a limit ring (414) is provided on the plug shaft (412).

9. The flanging and riveting die assembly according to claim 1, characterized in that, The bottom of the inner flange upper mold (408) is provided with a flange mold opening (421), and the side of the flange mold opening (421) is provided with a notch (422) for avoiding the end rod of the automobile shock absorber.

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