CN116833321A

CN116833321A - Double-end turns over and rivets special mould

Info

Publication number: CN116833321A
Application number: CN202310957232.5A
Authority: CN
Inventors: 吴建新; 许乐
Original assignee: Jingzhou Xinhong Metal Products Co ltd
Current assignee: Jingzhou Xinhong Metal Products Co ltd
Priority date: 2023-07-31
Filing date: 2023-07-31
Publication date: 2023-10-03

Abstract

The invention provides a double-head turning riveting special die which comprises a bottom plate, a LINK assembly and a bushing, wherein two lower punches distributed left and right are fixed on the bottom plate, a plug inserted into the bushing is fixed at the top end of each lower punch, a material bearing plate is arranged above the bottom plate, a spring is arranged between the material bearing plate and the bottom plate, two round holes for the lower punches to pass through are formed in the material bearing plate, and the top end of each plug is positioned above the material bearing plate; the upper part of the material bearing plate is provided with a liftable upper template, the bottom of the upper template is provided with two upper punches, and the bottom of the upper punch is provided with jacks corresponding to the plugs. According to the invention, through the arrangement of the two upper punches and the two lower punches, the bushing which is placed on the LINK assembly and is subjected to pre-turning riveting can be turned and riveted at one time, secondary machining is not needed, and the machining efficiency of the LINK assembly is improved.

Description

Double-end turns over and rivets special mould

Technical Field

The invention relates to the technical field of dies, in particular to a double-head turning and riveting special die.

Background

Turning and riveting a composite bushing product of a LINK assembly in a stamping part of the automobile seat, wherein the original turning and riveting of the product is to adopt a single hole for bushing turning and riveting; firstly inserting the bushing after pre-riveting into a hole of a product, then placing the product on a corresponding die for processing, and completing all riveting work of the bushing so as to fix the bushing on the product; however, the LINK assembly is generally provided with two holes, and two bushings are required to be installed, so that one LINK assembly is required to be placed on a die for two times of processing, and the processing efficiency of the product is reduced.

Disclosure of Invention

The invention discloses a double-head turning riveting special die, which solves the problem that a LINK assembly needs to be placed on the die for two times of processing, and the processing efficiency of a product is reduced.

In order to solve the technical problems, the invention adopts the following technical scheme:

the double-end turning and riveting special die comprises a bottom plate, a LINK assembly and a bushing, wherein two lower punches which are distributed left and right are fixed on the bottom plate, a plug which is inserted into the bushing is fixed at the top end of each lower punch, a material bearing plate is arranged above the bottom plate, a spring is arranged between the material bearing plate and the bottom plate, two round holes for the lower punches to pass through are formed in the material bearing plate, and the top end of each plug is positioned above the material bearing plate; the upper part of the material bearing plate is provided with a liftable upper template, the bottom of the upper template is provided with two upper punches, and the bottom of the upper punch is provided with jacks corresponding to the plugs.

Compared with the prior art, the invention has the following beneficial effects:

respectively inserting the two pre-turned and riveted bushings into the two holes on the LINK assembly, and then placing the LINK assembly on a material bearing plate, so that the two plugs are respectively inserted into the inner sides of the two pre-turned and riveted bushings, and the part of the bushing after turning and riveting is not contacted with the material bearing plate; then the upper die plate drives the two upper punches to move downwards, the bottom ends of the upper punches press the top surface of the LINK assembly, downward thrust is applied, the material bearing plate presses the spring along with the downward movement, and the riveting processing of the part of the bushing, which is not riveted, is started; after the bushing is turned over and riveted, the upper die plate moves upwards to recover, and then the spring pushes the material bearing plate to move upwards to recover, so that the LINK assembly is pushed upwards, and a worker can conveniently take out the LINK assembly; according to the invention, through the arrangement of the two upper punches and the two lower punches, the bushing which is placed on the LINK assembly and is subjected to pre-turning riveting can be turned and riveted at one time, secondary machining is not needed, and the machining efficiency of the LINK assembly is improved.

Drawings

FIG. 1 is a schematic elevational view in cross-section of the present invention;

FIG. 2 is an enlarged schematic view of the structure of FIG. 1 at A;

fig. 3 is a schematic structural diagram of the product of the present invention after riveting.

In the figure: 1. a bottom plate; 2. a lower punch; 21. a plug; 3. a material bearing plate; 31. a spring; 4. an upper template; 41. an upper punch; 42. a first iron-absorbing block; 43. a backing plate; 44. an upper fixing plate; 45. a riser; 46. a second suction block; 47. guide sleeve; 5. a guide post; 6. a lower fixing plate; 61. an electric telescopic rod; 62. a connecting rod; 63. a moving plate; 64. a connecting plate; 65. a magnet; 7. an automatic telescopic rod; 71. a control lever; 72. a push plate; 8. a LINK assembly; 9. a bushing.

Detailed Description

The details of the present invention are described below in conjunction with the accompanying drawings and examples.

As shown in fig. 1 and 2, the invention provides a double-head turning riveting special die, which comprises a bottom plate 1, a LINK assembly 8 and a bushing 9, wherein two lower punches 2 distributed left and right are fixed on the bottom plate 1, plugs 21 inserted into the bushing 9 are fixed at the top ends of the lower punches 2, a material bearing plate 3 is arranged above the bottom plate 1, a spring 31 is arranged between the material bearing plate 3 and the bottom plate 1, two round holes for the lower punches 2 to pass through are formed in the material bearing plate 3, and the top ends of the plugs 21 are positioned above the material bearing plate 3; an upper template 4 capable of lifting is arranged above the material bearing plate 3, two upper punches 41 are arranged at the bottom of the upper template 4, and insertion holes corresponding to the plugs 21 are formed in the bottoms of the upper punches 41.

As shown in fig. 1, a lower fixing plate 6 is fixed on the top of the bottom plate 1, and the bottom end of a spring 31 is fixed with the top end of the lower fixing plate 6; the two lower punches 2 penetrate the lower fixing plate 6 and are connected to the lower fixing plate 6, respectively. The setting of lower fixed plate 6 can increase the fastness of two lower drifts 2, when the loading board 3 is pressed down, then can exert pressure to spring 31, makes spring 31 compressed, and when bush 9 on LINK assembly 8 accomplishes the turning rivet operation, loading board 3 is not pressed the back, spring 31 then resumes, makes loading board 3 upwards remove, promotes LINK assembly 8 upwards to the staff takes off LINK assembly 8.

As shown in fig. 1, a backing plate 43 is fixed to the bottom of the upper die plate 4, an upper fixing plate 44 is fixed to the bottom of the backing plate 43, the top ends of the upper punches 41 are fixed to the bottom of the backing plate 43, and the two upper punches 41 respectively penetrate through the upper fixing plate 44 and are connected with the upper fixing plate 44. The arrangement of the base plate 43 can protect the upper template 4, and avoid the deformation or the dent of the upper template 4 due to various reasons; and the upper fixing plate 44 can also increase the firmness of the upper punch 41.

As shown in fig. 1 and 2, two connecting plates 64 which are symmetric left and right are arranged above the material bearing plate 3, the two connecting plates 64 are respectively positioned between the two upper punches 41, and a magnet 65 for adsorbing the LINK assembly 8 is inlaid at the bottom of the connecting plates 64; the lower fixing plate 6 is provided with an electric telescopic rod 61 for driving the two connecting plates 64 to move back and forth, and a first iron-absorbing block 42 is embedded at the bottom of the upper punch 41. The magnet 65 at the bottom of the two connecting plates 64 can absorb the LINK assemblies 8 waiting for turning riveting after installing the bushings 9 respectively, and then the electric telescopic rod 61 is started to drive the two connecting plates 64 to move towards the back of the bottom plate 1 (in the orientation shown in figure 1); when one LINK assembly 8 is positioned above the material bearing plate 3, and two bushings 9 on the LINK assembly 8 correspond to two plugs 21 respectively, the upper die plate 4 moves downwards, so that the upper punch 41 moves downwards to contact the top surface of the LINK assembly 8, and the first-number suction block 42 contacts the LINK assembly 8 to adsorb the LINK assembly 8; then the upper template 4 continues to move downwards to enable the LINK assembly 8 to be in contact with the material bearing plate 3 after being separated from the connecting plate 64, the plug 21 is inserted into the lining 9 on the LINK assembly 8, when the upper template 4 continues to move downwards, pressure is applied to the material bearing plate 3 to enable the material bearing plate 3 to move downwards to squeeze the spring 31, and the upper punch 41 is matched with the lower punch 2 to finish the riveting process of the lining 9 on the LINK assembly 8; after the bushing 9 is turned and riveted, the upper die plate 4 moves upwards, the first magnet block 42 drives the LINK assembly 8 to move upwards, the LINK assembly 8 is reset after contacting with the bottom of the connecting plate 64, and the magnet 65 at the bottom of the connecting plate 64 continuously adsorbs the LINK assembly 8 after finishing processing; after the connecting plate 64 is driven by the electric telescopic rod 61 to move, the next LINK assembly 8 waiting to be processed is located at the position of the last processed LINK assembly 8, and then the operation is repeated, so that the LINK assembly 8 is processed, repeated manual feeding and discharging of the LINK assembly 8 by a worker is not needed, the labor intensity of the worker is reduced, and the processing efficiency of the LINK assembly 8 is improved.

As shown in fig. 1, a connecting rod 62 is fixed at the telescopic end of the electric telescopic rod 61, a moving plate 63 is fixed at the other end of the connecting rod 62, and one surface of the moving plate 63 is connected to two connecting plates 64. After the electric telescopic rod 61 is started, the telescopic end of the electric telescopic rod 61 can drive the moving plate 63 to move through the connecting rod 62, so that the moving plate 63 drives the two connecting plates 64 to move forwards or backwards (in the orientation shown in fig. 1).

As shown in fig. 1, the two sides of the lower fixing plate 6 are both fixed with an automatic telescopic rod 7, a telescopic end of the automatic telescopic rod 7 is fixed with a control rod 71, and the other end of the control rod 71 is fixed with a push plate 72. When the LINK assembly 8 to be processed is positioned above the material bearing plate 3, two automatic telescopic rods 7 can be started, the telescopic ends of the two automatic telescopic rods 7 drive two pushing plates 72 to be close through two control rods 71 respectively, and after the two pushing plates 72 are close, the position of the LINK assembly 8 can be calibrated, so that two bushings 9 on the LINK assembly 8 are aligned with two plugs 21 respectively.

As shown in fig. 1, the bottom of the upper punch 41 is inlaid with a first iron-absorbing block 42, the bottom of the upper fixing plate 44 is fixed with a vertical plate 45 between the two upper punches 41, and the bottom of the vertical plate 45 is fixed with a second iron-absorbing block 46. The bottom of the riser 45 is flush with the bottom of the upper punch 41 and is located between the two webs 64; when the upper template 4 moves downwards, the vertical plate 45 moves downwards, and after the second iron-absorbing block 46 contacts with the top surface of the LINK assembly 8, the LINK assembly 8 can be absorbed, so that the connection stability of the LINK assembly 8 and the first iron-absorbing block 42 at the bottom of the two upper punches 41 is increased, and the LINK assembly 8 can be driven to move up and down better.

As shown in fig. 1, a guide post 5 is fixed on the top of the bottom plate 1, and a guide sleeve 47 corresponding to the guide post 5 is fixed on the bottom of the upper template 4. The guide post 5 and the guide sleeve 47 are arranged so that the upper die plate 4 can move up and down more accurately, and the upper die plate 4 is driven by external driving equipment to lift, such as a hydraulic cylinder and the like.

When the bushing assembly is used, two bushings 9 after pre-turned and riveted are respectively arranged in two holes on the LINK assembly 8, so that the turned and riveted parts of the bushings 9 face upwards, and then the LINK assembly 8 is placed on the material bearing plate 3, so that two plugs 21 are respectively inserted into the inner sides of the two bushings 9; then the upper die plate 4 moves downwards, so that the upper punch 41 can press the LINK assembly 8 downwards along with the movement, the material bearing plate 3 compresses the springs 31 along with the downward movement, and the upper punch 41 can complete the riveting operation of the lining 9 on the LINK assembly 8 by matching with the lower punch 2.

Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered by the scope of the claims of the present invention.

Claims

1. The utility model provides a special mould is riveted to double-end turn over, includes bottom plate (1), LINK assembly (8) and bush (9), its characterized in that: two lower punches (2) which are distributed left and right are fixed on the bottom plate (1), a plug (21) which is inserted into the bushing (9) is fixed at the top end of the lower punch (2), a material bearing plate (3) is arranged above the bottom plate (1), a spring (31) is arranged between the material bearing plate (3) and the bottom plate (1), two round holes for the lower punch (2) to pass through are formed in the material bearing plate (3), and the top end of the plug (21) is positioned above the material bearing plate (3); an upper template (4) capable of lifting is arranged above the material bearing plate (3), two upper punches (41) are arranged at the bottom of the upper template (4), and insertion holes corresponding to the plugs (21) are formed in the bottoms of the upper punches (41).

2. The double-ended flip rivet special die as set forth in claim 1, wherein: the top of the bottom plate (1) is fixed with a lower fixing plate (6), and the bottom end of the spring (31) is fixed with the top end of the lower fixing plate (6); the two lower punches (2) respectively penetrate through the lower fixing plate (6) and are connected with the lower fixing plate (6).

3. The double-ended flip rivet special die as set forth in claim 1, wherein: the bottom of cope match-plate pattern (4) is fixed with backing plate (43), and the bottom of backing plate (43) is fixed with upper fixed plate (44), and the top of upper punch (41) is fixed in the bottom of backing plate (43), and two upper punches (41) are passed through upper fixed plate (44) respectively and are connected with upper fixed plate (44).

4. The double-ended flip rivet special die as set forth in claim 2, wherein: two connecting plates (64) which are bilaterally symmetrical are arranged above the material bearing plate (3), the two connecting plates (64) are respectively positioned between the two upper punches (41), and a magnet (65) for adsorbing the LINK assembly (8) is inlaid at the bottom of each connecting plate (64); an electric telescopic rod (61) for driving the two connecting plates (64) to move forwards and backwards is arranged on the lower fixing plate (6), and a first iron-absorbing block (42) is embedded at the bottom of the upper punch (41).

5. The double-ended flip rivet special die as set forth in claim 4, wherein: the telescopic end of the electric telescopic rod (61) is fixed with a connecting rod (62), the other end of the connecting rod (62) is fixed with a moving plate (63), and one surface of the moving plate (63) is connected with two connecting plates (64) respectively.

6. The double-ended flip rivet special die as set forth in claim 2, wherein: the automatic telescopic rods (7) are fixed on two sides of the lower fixing plate (6), the control rods (71) are fixed at telescopic ends of the automatic telescopic rods (7), and the pushing plates (72) are fixed at the other ends of the control rods (71).

7. A dual-headed flip rivet dedicated die as set forth in claim 3, wherein: a vertical plate (45) positioned between the two upper punches (41) is fixed at the bottom of the upper fixing plate (44), and a second iron-absorbing block (46) is fixed at the bottom of the vertical plate (45).

8. The double-ended flip rivet special die as set forth in claim 1, wherein: the top of the bottom plate (1) is fixed with a guide post (5), and the bottom of the upper template (4) is fixed with a guide sleeve (47) corresponding to the guide post (5).