CN205159019U - A special steel strip shaping fixture for thermal varistors - Google Patents

Abstract

The utility model provides a to the special plastic anchor clamps of steel band in the hot piezoresistor production process. The utility model designs an one set of steel band plastic anchor clamps that are used for hot piezoresistor, it can be simultaneously carries out the plastic to every work piece on steel band and the steel band, very big reduction staff's intensity of labour to, because plastic adoption equipment goes on, compare with artifical manually operated, not only work efficiency has improved tens times, the plastic enables moreover and after the product quality can guarantee, very big reduction think the factor and the deviation that leads to. The utility model discloses simple structure, convenient to use, low cost, effect ideal.

Description

A special steel strip shaping fixture for thermal varistors

technical field

The utility model relates to a shaping fixture, which is a special steel strip shaping fixture for thermal piezoresistors.

Background technique

At present, there are three processes for the production of thermal varistors:

1. Using round lead paper tape carrier:

①Pressure-sensitive thermal coupling→②Plug-in→③Welding→④Encapsulation→⑤Curing→⑥Primary punching→⑦Voltage resistance→⑧Final inspection resistance value→⑨Secondary punching→⑩packing.

2. Using flat pin steel belt carrier Method 1:

①Pressure-sensitive thermal coupling→②Plug-in→③Welding→④Encapsulation→⑤Curing→⑥Primary punching→⑦Voltage resistance→⑧Final inspection resistance value→⑨Secondary punching→⑩packing.

3. Using flat pin steel belt carrier Method 2:

①Plug-in→②Welding→③Encapsulation→④Curing→⑤Primary punching→⑥Voltage resistance→⑦Final inspection resistance value→⑧Secondary punching→⑨Packaging.

Compared with the paper tape carrier, the steel belt carrier has many advantages. However, when the above "2, 3" process is adopted, the steel belt is easily deformed during production and station turnover, and it is easy to have more than a dozen workpieces on each steel belt. Left and right, up and down deformation, the deformation needs to be manually shaped before the second punching, to avoid undesired phenomena such as inconsistent pin size, cracked encapsulation material, and warped pins during punching. And the method of artificial hand shaping is at first to the whole steel strip shaping, then each workpiece on the steel strip is shaped successively, its efficiency is low, the cost is high, and the shaping is difficult to meet the technical requirements.

Contents of the invention

The purpose of this utility model is to provide a special steel strip shaping fixture for thermal varistors, which can simultaneously shape the steel strip and each workpiece on the steel strip, reduce labor intensity, improve work efficiency, and standardize The shaping operation ensures the quality of shaping, so as to overcome the deficiencies of the prior art.

The utility model is achieved in this way: the special steel strip shaping fixture for thermal piezoresistors includes a base, a bottom plate is arranged on the top of the base, a pressing plate is arranged above the bottom plate, and the bottom plate and the pressing plate are connected by a positioning column. There is a bead at the front end, the bottom of the bead is flush with the bottom of the press plate, and the bead is in the plane area above the bottom plate; there is also a bracket on the base, and a transmission mechanism, a handle and a movable column are arranged on the bracket, and the handle and the transmission The outer end of the mechanism is connected, the transmission mechanism is connected with the movable column, and the bottom end of the movable column is connected with the top of the pressing plate.

The pressing plate is connected with the pressing bar as a whole.

The utility model designs a set of steel strip shaping fixtures for thermal varistors, which can simultaneously shape the steel strip and each workpiece on the steel strip, greatly reducing the labor intensity of the staff, and, due to The plastic surgery is carried out with equipment. Compared with manual operation, not only the work efficiency is increased by more than ten times, but also the product quality after plastic surgery can be guaranteed, which greatly reduces the deviation caused by artificial factors. The utility model has the advantages of simple structure, convenient use, low cost and ideal effect.

Description of drawings

Accompanying drawing 1 is the structural representation of the utility model;

Accompanying drawing 2 is the schematic diagram of the use state of the utility model.

detailed description

Embodiment 1: A special steel strip shaping fixture for thermal varistors, including a base 1, a base plate 2 is provided on the top of the base 1, a pressure plate 4 is provided above the base plate 2, and a positioning column 5 is passed between the base plate 2 and the pressure plate 4 Connect, be provided with bead 3 at the front end of pressure plate 4, described pressure plate 4 is connected with bead 3 as a whole, the bottom of bead 3 is flush with the bottom of pressure plate 4, and bead 3 is in the plane area above bottom plate 2; Also be provided with support 6 on the support 6, be provided with transmission mechanism 7, handle 8 and movable column 9 on support 6, handle 8 is connected with the outer end of transmission mechanism 7, transmission mechanism 7 is connected with movable column 9, the bottom of movable column 9 Connect with the top of platen 4.

When in use, put the steel belt 11 to be shaped on the bottom plate 2, and adjust the position, the operator pulls the handle 8, and the belt guide column 9 moves downward, so that the pressure plate 4 moves down, so that the pressure strip 3 is pressed on the steel belt 11 At the corresponding position of the steel belt 1, the steel belt 1 and the workpiece on the steel belt 1 are pressed and shaped by the bead 3, so that the shaping operation of a steel belt 11 is completed at the same time.

The transmission mechanism 7 is a common transmission mechanism such as gear transmission, and its function is to convert the rotation generated by pulling the handle 8 into the up and down movement of the movable column 9. Those skilled in the art can design multiple structures of the same kind according to their needs, and details will not be repeated here.

Claims (2)

1. A special steel strip shaping fixture for thermal varistors, including a base (1), characterized in that: a bottom plate (2) is provided on the top of the base (1), and a pressure plate ( 4), the bottom plate (2) and the pressure plate (4) are connected by a positioning column (5), and the front end of the pressure plate (4) is provided with a bead (3), and the bottom of the bead (3) is aligned with the bottom of the pressure plate (4) Flat, and the bead (3) is in the plane area above the bottom plate (2); a bracket (6) is also provided on the base (1), and a transmission mechanism (7) and a handle (8) are provided on the bracket (6) And the movable column (9), the handle (8) is connected with the outer end of the transmission mechanism (7), the transmission mechanism (7) is connected with the movable column (9), and the bottom end of the movable column (9) is connected with the top of the pressure plate (4) connect. 2. The special steel strip shaping jig for thermal varistors according to claim 1, characterized in that: the pressing plate (4) is connected with the pressing bar (3) as a whole.