CN218080240U

CN218080240U - Solid double-half retainer riveting device

Info

Publication number: CN218080240U
Application number: CN202222045525.XU
Authority: CN
Inventors: 于磊; 李兵建; 魏秀军; 陈非; 冯在意; 陈静; 吴小涛; 史雄飞; 郜静雅
Original assignee: Luoyang Bearing Research Institute Co Ltd
Current assignee: Luoyang Bearing Research Institute Co Ltd
Priority date: 2022-08-04
Filing date: 2022-08-04
Publication date: 2022-12-20
Anticipated expiration: 2032-08-04

Abstract

The utility model discloses a solid double-half holder riveting device, which comprises a bottom plate, a base, a guide pillar, a spring, a lower pressing plate and a lower pressing component, wherein the base is cylindrical with two steps, the first step is used for positioning the double-half holder to be riveted, a positioning blind hole is arranged on the horizontal end face of the first step, and the double-half holder can be fixed on the base through a positioning rivet matched with the positioning blind hole; the pressing assembly comprises a connecting plate and an indexing plate, a plurality of punches with the same exposed length are arranged on the indexing plate at intervals along the circumferential direction of the indexing plate, each punch is located right above a rivet hole, each punch can press a process rivet placed in the rivet hole in advance to be bent and deformed under the action of a press machine, and riveting of the double-half retainer is completed. By using the riveting device, semi-mechanical riveting processing can be realized, the riveting technology efficiency in the processing process of the double-half retainer is higher, the quality is better, and the structural performance of the finished retainer is ensured.

Description

Solid double-half retainer riveting device

Technical Field

The utility model relates to a two half holder processing technology fields of miniature bearing entity, specific two half holder riveting set of entity that says so, this riveting set can make two separation type holders once only rivet as an organic wholely in two half holder course of working of entity.

Background

In the bearing industry, the processing of a double-half solid retainer needs to rivet the double-half retainer together, then carry out precision machining to ensure the shape precision of the outer diameter of the double-half solid retainer, and finally carry out drilling of a pocket. In order to ensure the dimensional accuracy and the form and position accuracy of each pocket of the double-half retainer and meet the structural performance of a finished product, the riveting quality of the double-half retainer is particularly important.

The riveting method of the double-half retainer generally adopts manual riveting, and comprises the steps of placing the double-half retainer on a base step (as shown in figure 1) after marks are aligned, uniformly distributing a proper number of process rivets in rivet holes, knocking a punch head one by using a hammer, knocking the process rivets to deform through the pressure of the punch head, and completing the riveting of the double-half retainer. Although the method can finish riveting the double half retainer in the process of machining the retainer, the manual riveting has the following defects: (1) In the machining process, because the force during knocking cannot be consistent, the riveting of the double-half retainer is not firm, and the riveting needs to be repeatedly repaired, so that the riveting efficiency is low; (2) The vertical striking of the punch cannot be guaranteed in the manual riveting process, so that the punch is easy to break, the end face of the retainer is crushed, and the workpiece is scrapped; (3) And manual riveting is limited by factors such as hand strength and proficiency of operators, so that the riveting quality is unstable, the working efficiency is low, and the riveting machine is not suitable for batch processing.

SUMMERY OF THE UTILITY MODEL

In order to solve the deficiencies in the prior art, the utility model provides a two half holder riveting set of entity can realize half mechanized riveting through using this riveting set, makes the riveting technological efficiency in the two half holder course of working of entity higher, the quality is better, has guaranteed the structural performance of finished product holder.

In order to achieve the above object, the utility model discloses a concrete scheme does:

a solid double-half retainer riveting device comprises a base plate, a base fixed in the middle of the base plate, a plurality of guide pillars vertically fixed on two sides of the base plate on the base plate, springs sleeved on the guide pillars, a lower pressing plate penetrating through the guide pillars and capable of sliding up and down along the guide pillars, and a lower pressing assembly fixed below the lower pressing plate, wherein the base is cylindrical and provided with a first step and a second step; the lower pressing assembly comprises a connecting plate fixedly connected with the lower pressing plate and a dividing plate fixedly connected with the connecting plate, a plurality of punches with the same exposed length are arranged on the dividing plate along the circumferential interval of the dividing plate, each punch is respectively positioned right above a corresponding rivet hole of the double-half retainer to be riveted, and each punch can press a process rivet arranged in the rivet hole in advance to be bent and deformed under the action of a press machine, so that riveting of the double-half retainer is completed.

Furthermore, a gasket is sleeved on a first step of the base, the outer diameter of the gasket is larger than that of the two half holders, a positioning through hole corresponding to the positioning blind hole is formed in the gasket, and the positioning rivet sequentially penetrates through any rivet hole in the two half holders to be riveted and the positioning through hole in the gasket and then is in interference fit with the positioning blind hole.

Further, the depth of the positioning blind hole is larger than 3mm.

Furthermore, the pitch circle of the position of the positioning blind hole is equal to the pitch circle of the corresponding rivet hole.

Further, the length of the process rivet is 3/4 of the overall height of the double-half retainer.

Further, the exposed length of the punch is 1/2 of the overall height of the double-half retainer.

Furthermore, a plurality of punch holes are formed in the dividing plate at intervals along the circumferential direction of the dividing plate, the punches are in interference fit with the corresponding punch holes, and the pitch circle and the scale of each punch hole are consistent with those of the corresponding rivet hole in the double-half retainer to be riveted.

Further, the punch diameter is 0.05mm smaller than the rivet hole diameter.

Has the advantages that:

(1) The utility model provides a riveting set, first order step on the base cooperatees with location rivet, can treat that the riveting is two half holders and carry out accurate location, pushes down in the subassembly each drift be located respectively treat that the riveting is two half holders correspond the rivet hole directly over, under the effect of press, each drift can impress the riveting of corresponding rivet hole in order to realize two half holders with the technology rivet. The utility model discloses a press carries out the punching press riveting, and riveting pressure is adjustable controllable, greatly reduced in the course of working because the appearance of the circumstances such as the punch pin fracture that manual riveting caused, riveting fracture, guaranteed the machining efficiency and the processingquality of two half holders.

(2) The utility model discloses be equipped with the gasket on the first order step of well base, can not crush the base through setting up the gasket when not only can guaranteeing the riveting of two half holders, can also make to accomplish that riveted holder takes off more conveniently.

(3) The utility model provides a riveting set can shorten and to every to holder riveting time, alleviates staff's intensity of labour, further raises the efficiency.

(4) The utility model provides a riveting set simple structure workable, convenient operation easy clamping, the practicality is strong.

(5) The utility model provides a riveting set is applicable to miniature, small-size, middle-size and small-size's two and partly keep riveting processing, and the commonality is strong.

Drawings

Fig. 1 is a schematic structural diagram of a manually riveted double-half retainer in the prior art.

Fig. 2 is a schematic structural view of the middle riveting device of the present invention.

Fig. 3 is a cross-sectional view of the base.

Fig. 4 is a top view of the base (without the set rivet).

Fig. 5 is a top view of a gasket.

Fig. 6 is a cross-sectional view of a gasket.

Fig. 7 is a bottom view of the hold-down assembly.

Fig. 8 isbase:Sub>A cross-sectional view taken atbase:Sub>A-base:Sub>A in fig. 7.

Fig. 9 is a schematic view of the bottom plate, guide posts, springs and lower platen.

Graphic notation: 1. the device comprises a lower pressing plate, 2, a guide pillar, 3, a spring, 4, a process rivet, 5, a half retainer, 6, a base, 601, a first-stage step, 602, a positioning blind hole, 7, a bottom plate, 8, a gasket, 801, a positioning through hole, 9, a positioning rivet, 10, a pressing component, 1001, a connecting plate, 1002, a punch, 1003, an indexing plate, 1004, a punch hole, 11 and a supporting seat.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following specific embodiments, and it should be understood that the described embodiments are only some embodiments, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

A solid double-half retainer riveting device, please refer to fig. 2, comprises a bottom plate 7, a base 6 fixed in the middle of the bottom plate 7, a plurality of guide posts 2 vertically fixed on two sides of the base 6 on the bottom plate 7, springs 3 sleeved on the guide posts 2, a lower press plate 1 penetrating the guide posts 2 and capable of sliding up and down along the guide posts 2, and a lower press assembly 10 fixed below the lower press plate 1, wherein the base 6 is cylindrical with a first step and a second step, the first step 601 of the base 6 is used for positioning the double-half retainer, a positioning blind hole 602 is arranged on the horizontal end surface of the first step 601, the double-half retainer to be riveted can be fixed on the base 6 through a positioning rivet 9 matched with the positioning blind hole 602, and the top surface of the positioning rivet 9 is lower than the upper end surface of the base 6; the pressing assembly 10 comprises a connecting plate 1001 fixedly connected with the pressing plate 1 and a dividing plate 1003 fixedly connected with the connecting plate 1001, a plurality of punches 1002 with the same exposed length are arranged on the dividing plate 1003 at intervals along the circumferential direction of the dividing plate, each punch 1002 is located right above a corresponding rivet hole of the double-half retainer to be riveted, the diameter of each punch 1002 is 0.05mm smaller than that of the rivet hole, each punch 1002 can press a process rivet 4 placed in the rivet hole in advance to be bent and deformed under the action of a press machine, and riveting of the double-half retainer is completed. It should be noted that the double-half retainer refers to two half retainers 5 capable of forming a complete retainer, each rivet hole in the two half retainers 5 is uniformly distributed at intervals, the diameter and the position of each rivet hole are kept consistent, the two half retainers 5 are stacked up and down and then placed on the base 6 to be riveted, and it is required to ensure that the corresponding rivet holes in the two half retainers 5 are aligned up and down when stacked.

As shown in fig. 3 and 4, the outer wall of the first step 601 of the base 6 is matched with the inner wall of the double-half holder, and the parallel difference between the horizontal end surface of the first step 601 and the bottom surface of the base 6 is controlled within 0.005mm. The horizontal end face of the first-stage step 601 is provided with a positioning blind hole 602, the pitch circle of the position of the positioning blind hole 602 is equal to the pitch circle of the rivet hole in the double-half retainer, the diameter of the positioning blind hole 602 is slightly smaller than that of the rivet hole in the double-half retainer, and the depth of the positioning blind hole 602 is more than 3mm (the depth of the positioning blind hole 602 should be increased properly when a small-medium bearing is processed).

As shown in fig. 5 and 6, the difference in parallelism between the upper and lower end faces of the gasket 8 is not more than 0.005mm. The inner side wall of the gasket 8 is in clearance fit with the outer wall of the first step 601 of the base 6, and the outer diameter of the gasket 8 is larger than that of the double-half retainer. The end face of the spacer 8 is provided with a positioning through hole 801, and the positioning through hole 801 corresponds to the positioning blind hole 602 on the base 6. The gasket 8 is used for conveniently taking down the finished retainer after riveting is finished; the gasket 8 is quenched, so that the service life is prolonged, and the horizontal end face of the first step 601 in the base 6 is not crushed during riveting impact.

As shown in fig. 3, the set rivet 9 is in interference fit with a blind set hole 602 in the base 6, and the top surface of the blind set rivet is lower than the upper end surface of the base 6. The gasket 8 and the double-half retainer can be accurately fixed on the base 6 through the positioning rivet 9 and the first step on the base 6.

As shown in figure 2, the length of the process rivet 4 is 3/4 of the height of the double-half retainer, the process rivet 4 is placed in the rivet hole of the double-half retainer (avoiding the position of the positioning rivet 9), and the process rivet 4 is in clearance fit with the rivet hole. And after the riveting of the two half retainers is finished, taking down the riveted retainers, finishing the riveting procedure, and not riveting the rivet holes of the original mounting and positioning rivets 9.

As shown in fig. 7 and 8, the hold-down assembly 10 includes a connecting plate 1001 and an index plate 1003, the connecting plate 1001 and the index plate 1003 are connected by a bolt structure, and after the fixing, a punch hole 1004 (the punch hole 1004 may be provided only on the index plate 1003, or on both the connecting plate 1001 and the index plate 1003) is processed on the hold-down assembly 10, and the pitch circle and the index of the punch hole 1004 are consistent with those of the rivet hole of the double-half holder. The punches 1002 are pressed into the punch holes 1004 in an interference manner, the mounting number corresponds to the number and the positions of the process rivets 4, and the exposed length of each punch 1002 is consistent and is 1/2 of the overall height of the double-half retainer.

As shown in fig. 2 and 9, the guide posts 2 are fixedly mounted on the bottom plate 7 and are arranged on two sides of the base 6, the lower pressing plate 1 is in clearance fit with the guide posts 2, and the bottom plate 7 and the lower pressing plate 1 can be separated by mounting the springs 3 on the guide posts 2.

As shown in fig. 2, the base 6 is fixedly connected with the bottom plate 7 by a bolt structure. The pressing component 10 is partially connected with the pressing plate 1 through a bolt structure, and is fixed after adjustment, so that the punches 1002 correspond to the process rivets 4 in the double-half retainer one by one. And finally, adjusting the stroke and the pressure of the press machine, starting the press machine by two hands, and punching the two half retainers to enable the process rivets 4 to be bent and deformed properly, namely, the riveting of the two half solid retainers is completed.

The utility model provides a riveting device's concrete application method does:

1) When the press is not operated, under the action of the spring 3, the lower pressing plate 1 and the bottom plate 7 are in a separated state, and the gasket 8 is sleeved on the first-stage 601 step of the base 6;

2) Aligning the paired half retainers 5 up and down and placing the half retainers on the gasket 8, and fixing the double half retainers to be riveted and the gasket 8 on the base 6 through the positioning rivets 9;

3) Placing the process rivets 4 into corresponding rivet holes, wherein the number and the positions of the process rivets 4 correspond to the punches 1002 one by one;

4) Adjusting the pressure and the stroke of the press;

5) And starting the press machine, and punching the lower pressing plate 1 and the lower pressing assembly 10 by the press machine to enable the process rivet 4 to be properly bent and deformed, namely completing the riveting process.

The riveting device can be always arranged at the punching position of the press machine, and can also be moved onto the press machine after the sample loading is finished.

The foregoing is merely a preferred embodiment of the invention and is not to be construed as limiting the invention in any way. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a two half holder riveting set of entity, includes the bottom plate, is fixed in the base at bottom plate middle part, vertically be fixed in many guide pillars of base both sides on the bottom plate, the spring of suit on each guide pillar, wear to locate on the guide pillar and can follow guide pillar gliding holding down plate from top to bottom and be fixed in the holding down assembly of holding down plate below, its characterized in that:

the base is cylindrical and provided with a first step and a second step, the first step of the base is used for positioning the double-half retainer to be riveted, a positioning blind hole is formed in the horizontal end face of the first step, the double-half retainer to be riveted can be fixed on the base through a positioning rivet matched with the positioning blind hole, and the top face of the positioning rivet is lower than the upper end face of the base;

the lower pressing assembly comprises a connecting plate fixedly connected with the lower pressing plate and a dividing plate fixedly connected with the connecting plate, a plurality of punches with the same exposed length are arranged on the dividing plate at intervals along the circumferential direction of the dividing plate, each punch is respectively positioned right above a corresponding rivet hole of the double-half retainer to be riveted, and each punch can press a process rivet arranged in the rivet hole in advance to be bent and deformed under the action of a press machine, so that riveting of the double-half retainer is completed.

2. The riveting device for the solid double-half holder as claimed in claim 1, wherein a gasket is sleeved on the first step of the base, the outer diameter of the gasket is larger than that of the double-half holder, a positioning through hole corresponding to the positioning blind hole is arranged on the gasket, and the positioning rivet sequentially penetrates through any rivet hole in the double-half holder to be riveted and the positioning through hole on the gasket and then is in interference fit with the positioning blind hole.

3. The solid double-half holder riveting device according to claim 1, wherein the depth of the positioning blind hole is more than 3mm.

4. The solid double-half holder riveting device according to claim 3, wherein the pitch circle of the positioning blind hole is equal to the pitch circle of the corresponding rivet hole.

5. The solid double-half holder riveting device according to claim 1, wherein the length of the process rivet is 3/4 of the overall height of the double-half holder.

6. The solid double-half holder riveting device according to claim 1, wherein the exposed length of the punch is 1/2 of the overall height of the double-half holder.

7. The solid double-half holder riveting device according to claim 1, wherein a plurality of punch holes are arranged on the pressing component at intervals along the circumferential direction of the pressing component, the punches are in interference fit with the corresponding punch holes, and each punch hole is consistent with the pitch circle and the index of the corresponding rivet hole in the double-half holder to be riveted.

8. A solid double-half cage riveting apparatus according to claim 1, wherein the punch diameter is 0.05mm smaller than the rivet hole diameter.