CN216027459U

CN216027459U - Punching needle for plate spring punching

Info

Publication number: CN216027459U
Application number: CN202122759112.3U
Authority: CN
Inventors: 杨建华; 李强; 李�杰; 李爱林
Original assignee: Kunming Fangda Cunyin Plate Spring Co ltd
Current assignee: Kunming Fangda Cunyin Plate Spring Co ltd
Priority date: 2021-11-11
Filing date: 2021-11-11
Publication date: 2022-03-15
Anticipated expiration: 2031-11-11

Abstract

The utility model relates to the technical field of plate springs, in particular to a punching needle for plate spring punching, which comprises a convex die holder, a conical elastic sleeve and a locking nut, wherein a fixing nut is fixedly connected in the middle of the lower end surface of the convex die holder, a threaded rod is fixedly connected in the middle of the lower end surface of the fixing nut, a fixing screw rod is arranged on the inner side of the upper end of the convex die holder, a fixing block is fixedly connected in the middle of the lower end surface of the threaded rod, and a punching needle is arranged at the lower end of the fixing block. And the replacement cost is lower, and the method has good practical value.

Description

Punching needle for plate spring punching

Technical Field

The utility model relates to the technical field of plate springs, in particular to a punching needle for punching a plate spring.

Background

A plate spring, called a leaf spring for short, is a plate spring formed by stacking and combining not less than 1 piece of spring steel, is generally used for a wheel type vehicle suspension, is originally called a laminated or bracket spring, is sometimes called a semi-elliptical spring or a trolley spring, is one of the oldest spring forms, can be traced back to the middle century, and is more widely applied to a punching pin for punching a leaf spring, so that the demand for the punching pin for punching the leaf spring is increasing day by day.

In the past, a punch is used in a leaf spring punching process, and the used material is spring steel (suitable for cold punching) and high-speed steel (suitable for hot punching), so that the following problems exist in the aspects of manufacturing, use and cost: the requirement of clamping angle exists, the specifications are more, each specification needs machining, the size of a cylindrical excircle and the angle of a conical surface are guaranteed, the cylindrical surface and the conical surface need to be finely ground after heat treatment is finished, the number of punches of different specifications is small at one time, so that the machining period is long, the machining cost is high, more materials need to be prepared if one-time batch machining is carried out, the capital occupation is more, the service life of the punches is unstable, and only dozens of reeds can be punched in one piece with poor quality; the elastic steel punch head can only be used for cold punching, limitation is large, in the use process of the punch head, due to the fact that the conical surface is connected with the cylindrical surface, the elastic steel punch head is easy to break due to stress concentration, inconvenient to replace, and replacement cost is relatively high, so that the punching needle for punching the plate spring is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a punching needle for punching a plate spring, which solves the problems in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a towards needle for leaf spring punches a hole, includes protruding die holder, toper bullet cover and lock nut, fixedly connected with fixation nut in the middle of the protruding die holder lower extreme terminal surface, fixedly connected with threaded rod in the middle of the fixation nut lower extreme terminal surface, protruding die holder upper end inboard is equipped with clamping screw, fixedly connected with fixed block in the middle of the terminal surface under the threaded rod, the fixed block lower extreme is equipped with towards the needle, it is equipped with toper bullet cover to dash the needle outside, the toper bullet cover outside is equipped with lock nut.

Preferably, gaskets are fixedly connected between the convex die holder and the fixing screws, the number of the gaskets is four, the number of the fixing screws is four, and the fixing screws are arranged at the inner sides of the gaskets.

Preferably, the fixing nut is solid, and the fixing nut, the convex die holder and the threaded rod are connected in a welding mode.

Preferably, the inner side of the convex die holder is provided with four connecting holes, and the fixed screw and the convex die holder are connected together through the connecting holes.

Preferably, the conical bullet sleeve is arranged in a conical shape, and the central point of the conical bullet sleeve and the central point of the punch pin are arranged on the same vertical line.

Preferably, a threaded hole is formed in the inner side of the locking nut, and the locking nut and the fixing screw rod are connected together in a threaded mode through the threaded hole.

Preferably, the punching needle is arranged in a T shape, the height of the punching needle is 10cm, and the heights of the conical elastic sleeve and the locking nut are both 4 cm.

Preferably, the center points of the convex die holder, the punch pin and the locking nut are arranged on the same vertical line.

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

1. according to the utility model, through the arrangement of the punching needle, the locking nut, the conical elastic sleeve and the threaded hole, the punching needles with different models can be fixed through the conical elastic sleeve and the locking nut, the conical elastic sleeve has a locking function, only different punching needles need to be replaced according to different requirements in the punching process, the used materials are less, the occupation of funds is effectively reduced, meanwhile, the damaged punching needles are convenient to replace in the using process, the replacement cost is lower, and the practical value is good;

2. according to the utility model, through the arrangement of the fixing nut, the threaded rod and the locking nut, a worker can fix the fixing nut by using a tool and then tighten the locking nut by using the tool, so that the device can be stably connected together in the installation process, the device has good convenience and can improve the installation stability of the device, and the device is worthy of wide popularization and use.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of the installation position of the punching pin according to the present invention;

fig. 3 is a schematic view of the mounting position structure of the fixing block of the present invention.

In the figure: the stamping die comprises a 1-convex die holder, a 2-connecting hole, a 3-fixing nut, a 4-threaded rod, a 5-washer, a 6-fixing screw, a 7-punching needle, an 8-conical elastic sleeve, a 9-locking nut, a 10-threaded hole and an 11-fixing block.

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.

Referring to fig. 1-3, the present invention provides a technical solution:

the utility model provides a towards needle for leaf spring punches a hole, includes that convex die base 1, toper bullet cover 8 and lock nut 9, fixedly connected with fixation nut 3 in the middle of the terminal surface under the convex die base 1, fixedly connected with threaded rod 4 in the middle of the terminal surface under the

fixation nut

3, 1 upper end inboard of convex die base is equipped with clamping screw 6, fixedly connected with fixed block 11 in the middle of the terminal surface under the threaded

rod

4, 11 lower extremes of fixed block are equipped with towards needle 7, towards 7 outsides of needle and be equipped with toper bullet cover 8, the toper bullet cover 8 outsides are equipped with lock nut 9.

Gaskets 5 are fixedly connected between the convex die holder 1 and the fixing screw rods 6, the number of the gaskets 5 is four, the number of the fixing screw rods 6 is four, and the fixing screw rods 6 are arranged at the inner sides of the gaskets 5, so that the convex die holder 1 and a punching device can be stably connected together when a plate spring is punched, and the stability is good; the fixing nut 3 is solid, and the fixing nut 3, the convex die holder 1 and the threaded rod 4 are welded together, so that the installation stability between the fixing nut 3 and the device is effectively improved, and the locking nut 9 is convenient to stably limit when being fixed; the inner side of the convex die holder 1 is provided with four connecting holes 2, and the fixed screw 6 and the convex die holder 1 are connected together through the connecting holes 2, so that the stability and convenience of connection among devices are effectively improved; the conical bullet sleeve 8 is arranged in a conical shape, the central point of the conical bullet sleeve 8 and the central point of the punching needle 7 are arranged on the same vertical line, and the punching needles 7 of different types can be limited and fixed conveniently through the arranged conical bullet sleeve 8; the inner side of the locking nut 9 is provided with a threaded hole 10, the locking nut 9 and the fixing screw rod 4 are in threaded connection through the threaded hole 10, and the punching needle 7 and the device can be stably connected together through the arranged locking nut 9 in the installation process; the punching needle 7 is arranged in a T shape, the height of the punching needle 7 is 10cm, the heights of the conical elastic sleeve 8 and the locking nut 9 are both 4cm, and the plate spring can be stably punched in the using process; the central points of the convex die holder 1, the punching needle 7 and the locking nut 9 are arranged on the same vertical line, so that the stability of the plate spring in the punching process is effectively improved, and the plate spring punching machine has good practical value.

The working process is as follows: when the punching needle for punching the plate spring is required to be installed and used, firstly, a worker needs to select a proper punching needle 7 to be placed in the conical elastic sleeve 8 from the direction of the large cone of the conical elastic sleeve 8, then the worker needs to place the punching needle 7 and the conical elastic sleeve 8 at the inner side of the lock nut 9, the worker needs to pay attention to the fact that the top end of the punching needle 7 faces downwards in the placing process, after the placement is completed, the worker needs to manually and spirally connect the lock nut 9 and the threaded rod 4 together through the threaded hole 10, then the worker needs to use a tool to fix the fixing nut 3 and then use the tool to tighten the lock nut 9, the device can be stably connected together in the installation process, the convenience is good, and meanwhile, the punching needle 7 can be stably installed in the device through the arranged conical elastic sleeve 8, have good stability, the installation is accomplished the back, and the staff need be with device integral erection on stamping device, and the in-process of installation, the staff at first need place the position at 6 outside bottom ends of clamping screw 5 with the packing ring, and the clamping screw 6 that works and the stable connection of boss base 1 and stamping device are in the same place to the leaf spring punches a hole afterwards.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a towards needle for leaf spring punches a hole, includes boss seat (1), toper bullet cover (8) and lock nut (9), its characterized in that: fixedly connected with fixation nut (3) in the middle of the terminal surface under protruding die holder (1), fixedly connected with threaded rod (4) in the middle of the terminal surface under fixation nut (3), protruding die holder (1) upper end inboard is equipped with clamping screw (6), fixedly connected with fixed block (11) in the middle of the terminal surface under threaded rod (4), fixed block (11) lower extreme is equipped with towards needle (7), it is equipped with toper bullet cover (8) to dash needle (7) outside, toper bullet cover (8) outside is equipped with lock nut (9).

2. The punching pin for punching a leaf spring according to claim 1, characterized in that: fixedly connected with packing ring (5) between convex die seat (1) and clamping screw (6), the total number of packing ring (5) is four, the total number of clamping screw (6) is four, clamping screw (6) set up the position in packing ring (5) inboard.

3. The punching pin for punching a leaf spring according to claim 1, characterized in that: the fixing nut (3) is solid, and the fixing nut (3) is connected with the convex die holder (1) and the threaded rod (4) in a welded mode.

4. The punching pin for punching a leaf spring according to claim 1, characterized in that: the die is characterized in that the inner side of the male die holder (1) is provided with four connecting holes (2), and the fixed screw (6) is connected with the male die holder (1) through the connecting holes (2).

5. The punching pin for punching a leaf spring according to claim 1, characterized in that: the conical bullet sleeve (8) is arranged in a conical manner, and the central point of the conical bullet sleeve (8) and the central point of the punching needle (7) are arranged on the same vertical line.

6. The punching pin for punching a leaf spring according to claim 1, characterized in that: the inner side of the locking nut (9) is provided with a threaded hole (10), and the locking nut (9) and the threaded rod (4) are connected together in a threaded mode through the threaded hole (10).

7. The punching pin for punching a leaf spring according to claim 1, characterized in that: the punching needle (7) is T-shaped, the height of the punching needle (7) is 10cm, and the heights of the conical elastic sleeve (8) and the locking nut (9) are both 4 cm.

8. The punching pin for punching a leaf spring according to claim 1, characterized in that: the center points of the convex die holder (1), the punching needle (7) and the locking nut (9) are arranged on the same vertical line.