阅读说明：本技术 一种铆钉压合治具 (Rivet pressing jig ) 是由 苏冬才 普威威 于 2021-07-21 设计创作，主要内容包括：本发明公开了一种铆钉压合治具,属于冲压领域,包括下模以及上模,上模设有冲头,铆钉压合治具还包括定位装置以及夹持装置,夹持装置包括两夹持组件,每一夹持组件包括夹持块,夹持块滑动安装于下模,两夹持块反向运动夹持或松开铆钉,定位装置包括两限位块,每一限位块滑动安装于下模,限位块的移动方向与夹持块的移动方向垂直,限位块与夹持块卡扣使夹持块定位,冲头冲压下模上的铆钉使铆钉与产品压合,本发明铆钉压合治具通过设置两夹持组件来夹持铆钉,取代了原来冲孔的设计,当铆钉与产品冲压完成后,两夹持块向相反方向运动,与铆钉分开,因此脱模时不会产生铆钉刮伤以及难以操作的问题。(The invention discloses a rivet pressing fixture, belonging to the punching field, comprising a lower die and an upper die, wherein the upper die is provided with a punch head, the rivet pressing fixture also comprises a positioning device and a clamping device, the clamping device comprises two clamping components, each clamping component comprises a clamping block, the clamping blocks are slidably arranged on the lower die, the two clamping blocks move reversely to clamp or loosen a rivet, the positioning device comprises two limiting blocks, each limiting block is slidably arranged on the lower die, the moving direction of the limiting block is vertical to the moving direction of the clamping block, the limiting block is buckled with the clamping block to position the clamping block, the punch head punches the rivet on the lower die to press the rivet with a product, the rivet pressing fixture provided by the invention clamps the rivet by arranging the two clamping components, thereby replacing the original design of punching, after the rivet and the product are punched, the two clamping blocks move in opposite directions and are separated from the rivet, so that the problems of rivet scratching and difficult operation are avoided during demolding.)

1. The utility model provides a rivet pressing fixture, includes lower mould and last mould, it is equipped with drift, its characterized in that to go up the mould: the rivet pressing jig further comprises a positioning device and a clamping device, the clamping device comprises two clamping assemblies, each clamping assembly comprises a clamping block, the clamping blocks are slidably mounted on the lower die in a clamping mode, the two clamping blocks move reversely to clamp or loosen rivets, the positioning device comprises two limiting blocks, each limiting block is slidably mounted on the lower die, the moving direction of each limiting block is perpendicular to the moving direction of the corresponding clamping block, the limiting blocks are buckled with the clamping blocks to enable the clamping blocks to be positioned, and the punch punches the rivets on the lower die to enable the rivets to be pressed with products.

2. The rivet pressing jig according to claim 1, characterized in that: the positioning device further comprises a lifting plate, and the limiting block is fixed on the lifting plate and is perpendicular to the lifting plate.

3. The rivet pressing jig according to claim 2, characterized in that: the positioning device further comprises two connecting rods, one end of each connecting rod is fixed to the lifting plate, and the other end of each connecting rod is fixed to the limiting block.

4. The rivet pressing jig according to claim 3, characterized in that: the two connecting rods are parallel to each other.

5. The rivet pressing jig according to claim 2, characterized in that: the positioning device further comprises a positioning driving piece, the lower die comprises a bottom plate, the positioning driving piece is fixed on the bottom plate, the output end of the positioning driving piece is connected with the lifting plate, and the positioning driving piece drives the lifting plate to move in the vertical direction.

6. The rivet pressing jig according to claim 5, characterized in that: the positioning driving piece is an air cylinder.

7. The rivet pressing jig according to claim 1, characterized in that: each clamping assembly further comprises a clamping driving piece and a transmission rod, one end of the transmission rod is connected with the output shaft of the clamping driving piece, and the other end of the transmission rod is connected with the clamping block.

8. The rivet pressing jig according to claim 7, characterized in that: the clamping driving piece is an air cylinder.

9. The rivet pressing jig according to claim 1, characterized in that: the clamping block is further provided with a guide groove, the guide groove is located on the contact surface of the clamping block and the rivet, and the guide groove enables the rivet to be positioned relative to a product.

Technical Field

The invention relates to stamping equipment, in particular to a rivet pressing fixture.

Background

At present, rivets (studs) are riveted on sheet metal parts, so that the requirements of different heights can be met, and the application is more. The existing method has the defects that the taking and the placing are very inconvenient when rivets (studs) are riveted on a stamping die, an operator needs to put the rivets (studs) into holes with the same diameter, the rivets (studs) and products are taken out from the holes after the rivets (studs) are punched, the taking out is time-consuming and labor-consuming due to slight extrusion deformation in the riveting process, the balance cannot be well kept in the taking and the placing process, the rivets (studs) are easy to scratch, the production efficiency and the production quality are seriously influenced, and the working strength of the operator is increased.

Disclosure of Invention

In order to overcome the defects of the prior art, one of the objectives of the present invention is to provide a rivet pressing fixture which can prevent the rivet from being scratched and is convenient for taking out the rivet.

One of the purposes of the invention is realized by adopting the following technical scheme:

the utility model provides a rivet pressfitting tool, includes lower mould and last mould, it is equipped with the drift to go up the mould, rivet pressfitting tool still includes positioner and clamping device, clamping device includes two centre gripping subassemblies, each the centre gripping subassembly includes the grip block, grip block slidable mounting in the lower mould, two grip block reverse motion centre gripping or loosen the rivet, positioner includes two stoppers, each stopper slidable mounting in the lower mould, the moving direction of stopper with the moving direction of grip block is perpendicular, the stopper with the grip block buckle makes the grip block location, the drift punching press rivet on the lower mould makes rivet and product pressfitting.

Furthermore, the positioning device further comprises a lifting plate, and the limiting block is fixed on the lifting plate and is perpendicular to the lifting plate.

Furthermore, the positioning device further comprises two connecting rods, one end of each connecting rod is fixed to the lifting plate, and the other end of each connecting rod is fixed to the limiting block.

Further, the two connecting rods are parallel to each other.

Further, positioner still includes the location driving piece, the lower mould includes the bottom plate, the location driving piece is fixed in the bottom plate, the output of location driving piece with the lifter plate is connected, the location driving piece drives the lifter plate is at the motion of vertical direction.

Further, the positioning drive is a cylinder.

Furthermore, each clamping assembly further comprises a clamping driving piece and a transmission rod, one end of the transmission rod is connected with the output shaft of the clamping driving piece, and the other end of the transmission rod is connected with the clamping block.

Further, the clamping driving piece is an air cylinder.

Furthermore, the clamping block is also provided with a guide groove, the guide groove is positioned on the contact surface of the clamping block and the rivet, and the guide groove enables the rivet to be positioned relative to a product.

Compared with the prior art, the rivet pressing jig has the advantages that the two clamping assemblies are arranged to clamp the rivet, the original punching design is replaced, and after the rivet and a product are punched, the two clamping blocks move in opposite directions and are separated from the rivet, so that the problems of rivet scratching and difficult operation are avoided during demolding.

Drawings

FIG. 1 is a schematic view of a rivet pressing jig according to the present invention when a mold is opened;

FIG. 2 is an enlarged view of the rivet pressing jig A shown in FIG. 1;

FIG. 3 is a schematic view of the rivet pressing jig shown in FIG. 1;

fig. 4 is an enlarged view of the rivet pressing jig B of fig. 3.

In the figure: 10. a lower die; 11. a base plate; 12. a column; 13. a connecting plate; 14. mounting a plate; 20. a positioning device; 21. positioning a driving piece; 22. a lifting plate; 23. a connecting rod; 24. a limiting block; 240. a limiting groove; 30. a clamping device; 31. clamping the driving member; 32. a transmission rod; 33. a clamping block; 40. an upper die; 41. a top plate; 42. stamping the plate; 43. a punch; 200. producing a product; 300. and (4) riveting.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present, secured by intervening elements. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly disposed on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Fig. 1 to 4 illustrate a rivet pressing jig according to the present invention, which is used for riveting a rivet 300 to a product 200.

The rivet pressing fixture comprises a lower die 10, a positioning device 20, a clamping device 30 and an upper die 40.

The lower die 10 includes a bottom plate 11, a column 12, a connecting plate 13, and a mounting plate 14. The bottom of the upright post 12 is fixed on the bottom plate 11. The connecting plate 13 is fixed on the top of the upright 12. The bottom plate 11, the upright 12 and the connecting plate 13 form a receiving space therebetween. The mounting plate 14 is fixed on top of the connecting plate 13. The connecting plate 13 and the mounting plate 14 are provided with through holes which are positioned on the same straight line and are communicated with each other. The through hole is communicated with the accommodating space.

The positioning device 20 includes a positioning driving member 21, a lifting plate 22, two connecting rods 23 and two stoppers 24. The positioning drive 21 is in this embodiment a cylinder. The positioning driving member 21 is located in the accommodating space and fixed to the base plate 11. The lifting plate 22 is fixedly connected with the output end of the positioning driving member 21, and the positioning driving member 21 drives the lifting plate 22 to move up and down in the accommodating space along the vertical direction. The two connecting rods 23 are respectively fixed to the lifting plate 22 and perpendicular to the lifting plate 22. The two connecting rods 23 are parallel to each other. The two limit blocks 24 are respectively fixed at the end parts of the two connecting rods 23. Each stopper 24 is provided with a stopper groove 240. The limiting grooves 240 of the two limiting blocks 24 are oppositely arranged.

The clamping device 30 comprises two clamping assemblies. Each clamp assembly comprises a clamp drive 31, a drive link 32 and a clamp block 33. The clamp drive 31 is in this embodiment a pneumatic cylinder. The clamp drive 31 is fixed to the mounting plate 14. The clamping block 33 is slidably mounted to the mounting plate 14. One end of the transmission rod 32 is connected to the output end of the clamp driving member 31, and the other end is connected to the clamp block 33. Each clamping block 33 is provided with a guide groove, and the guide grooves of the two clamping blocks 33 are designed oppositely.

The upper die 40 includes a top plate 41, a punching plate 42, and a punch 43. The top plate 41 is fixedly connected to the punch plate 42. The punch 43 is fixed to the punching plate 42 and extends from the punching plate 42.

When the rivet pressing jig is used, the product 200 is placed on the lower die 10, and then the rivet 300 is placed at the position to be mounted of the product 200. The two clamping driving members 31 of the clamping device 30 respectively drive the two clamping blocks 33 to move towards each other, so as to clamp the rivet 300. When the rivet 300 is a special-shaped rivet, the guide groove of the holding block 33 contacts the rivet 300, and the rivet 300 having an improper mounting position can be corrected. The positioning driving member 21 of the positioning device 20 drives the lifting plate 22 to ascend, and drives the two limiting blocks 24 to move upwards until the limiting groove 240 contacts with the clamping block 33, so as to position the clamping block 33. The upper die 40 drives the punch 43 to move downwards, and the punch 43 presses the rivet 300 and the product 200 downwards, so that the rivet 300 is riveted on the product 200.

The rivet pressing fixture clamps the rivet 300 by arranging the two clamping components, replaces the original punching design, and after the rivet 300 and the product 200 are punched, the two clamping blocks 33 move in opposite directions and are separated from the rivet 300, so that the problems of scratching and difficult operation of the rivet 300 are avoided during demolding.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, variations and modifications can be made without departing from the spirit of the invention, and all equivalent modifications and changes can be made to the above embodiments according to the essential technology of the invention, which falls into the protection scope of the invention.