CN204503963U - Busbar Bending Die - Google Patents

Abstract

The utility model discloses a kind of bus Bending Mould, comprises punch and die, and described punch comprises cylinder, and cylinder one side is provided with bending plush copper; Wherein, in detachable fixing between described bending plush copper and cylinder, the contact surface of described bending plush copper and cylinder is circular arc concave surface, and the cylindrical of described circular arc concave surface and cylinder matches; The utility model has easy accessibility and easily changes the features such as the bending plush copper of different model.

Description

Busbar Bending Die

technical field

The utility model belongs to the field of moulds, in particular to a busbar bending mould.

Background technique

Bending molds are used when the bus bar is processed and bent. The existing bending molds include punches and dies; the punches usually use a rectangular body, and one side of the body is processed to form a bulge. Bend convex head; the die usually adopts a rectangular structure with grooves on one side; when processing the busbar, fix the punch, die and stamping device, and place the busbar on the side of the die with grooves , the bus bar is bent through the interaction between the die and the punch; however, the existing punch usually adopts an integrated structure. When it is necessary to produce bus bars of different specifications, the entire punch needs to be removed and replaced with a corresponding punch. Die processing, such an operation is very troublesome.

Contents of the invention

In order to overcome the deficiencies of the prior art, the utility model provides a busbar bending die which is easy to replace the bending protrusion.

The utility model adopts the following technical scheme: a busbar bending die, including a punch and a die, the punch includes a cylinder, and one side of the cylinder is provided with a bending protrusion; wherein, the bending protrusion It is detachably fixed to the cylinder, and the contact surface between the bent convex head and the cylinder is an arc concave surface, and the arc concave surface matches the outer circle of the cylinder.

With this structure, the column body and the bending convex head can be processed separately, and then the two are fixed to form a complete punch; compared with the prior art, the punch with this structure is very convenient to process; and for For finished busbars that require different bending requirements, it is only necessary to replace different types of bending protrusions, while in the existing technology, the entire punch needs to be replaced to meet this requirement; therefore, compared with the existing technology, only It is only necessary to process different types of bending convex heads, which saves materials and makes processing more convenient.

Wherein, a reinforcing part is provided under the column, and the reinforcing part and the lower part of the column are fixed by a reinforcing flange.

The rigidity of the existing punch is poor. During the processing, the punch is tilted back due to excessive local force, which affects the sameness and parallelism of the bending angle of the busbar. Adding a reinforcement part can increase the rigidity of the punch effectively. avoiding this from happening.

Wherein, a fixing bolt is included, and the fixing bolt passes through the cylinder and is connected with the bending protrusion so as to fix the bending protrusion and the cylinder.

With this structure, the cylinder and the bending boss can be processed separately, and then the two are fixed by fixing bolts to form a complete punch; the bolt structure is used to make the disassembly and assembly between the cylinder and the bending boss easier. convenience.

Wherein, the bending convex head is provided with a mold spare groove.

Adding a spare slot for the mold can fix the additional mold and the bending protrusion to bend the busbar to obtain finished products of different specifications.

Wherein, the die includes a body; a die mounting portion is provided on the body, a groove is opened on one side of the body, and two bending doors fixed to the body in rotation are arranged on the side, and one end of the bending door The opening of the groove is covered; when the bending door rotates under force, one end of the bending door extends into the groove.

In the bending process of the existing busbar, because the busbar will be supported on the side of the die with grooves, there must be an angle between the side of the die and the groove, and the surface of the busbar will be stressed during the bending process. The angle is squeezed, so there will be scars on the surface of the busbar after bending; with the setting of the bending door, the busbar is first placed on the bending door so that the busbar and the bending door are in face-to-face contact. During the bending process, the bus bar and the bending door are moved under force at the same time, and the bus bar and the bending door are always in face-to-face contact, thus avoiding the appearance of scars.

Wherein, the groove is an inverted trapezoidal groove, positioning holes are provided on both sides of the groove, and a rotating column is arranged in the positioning hole, and the rotating column is fixed with the corresponding bending door; the bending door uses the positioning column The center of the circle is the rotation center for rotation.

The inverted trapezoidal groove and the setting method of the rotating column are used to prevent the side wall of the groove from being scratched by the bending door during the rotation process. With this structure, when the revolving door rotates to the maximum stroke, the bottom surface and the inverted trapezoidal groove The side waist is snug.

Wherein, the concave mold is also provided with a return device for returning the bending door after rotation.

Adopting this structure is convenient for returning to the position after the bending door rotates.

Wherein, the return device includes a push rod, a return spring, and a spring plug; a passage is opened inside the body or the body and the die installation part, and the spring plug is located in the passage and is fixedly connected with the body or the die installation part; One end of the spring located in the passage is against the spring plug, and the other end is against the end of the push rod, and one end of the push rod extends into the trapezoidal groove and against the bending door.

With this structure, the function of the spring and the push rod is used to make the bending door return after rotation, and the return device of this structure has a buffer effect at the same time, so that the surface contact between the bending door and the bus bar is more stable. .

Description of drawings

Fig. 1 is a schematic structural view of an embodiment of the utility model.

Fig. 2 is a structural schematic diagram of the punch of the present invention after the convex head is removed.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described further:

As shown in Figure 1-2, a busbar bending die includes a punch and a die. The punch and die are installed on the stamping mechanism, and the bending of the busbar is completed through the relative movement of the punch and die.

The punch includes a bending nose 11, a cylinder 12 and a reinforcement part 13; the cylinder 11 is provided with a bolt hole 14 for the fixing bolt to pass through, and the fixing bolt extends from one side of the cylinder 12 and extends from the other side. It is detachably connected with the bending convex head 11; the contact surface of the bending convex head 11 and the cylinder 12 is an arc concave surface 15, and the arc concave surface 15 matches the outer circle of the cylinder body 12 so that the bending convex head 11 and the The fit between the cylinders 12 is tighter; the reinforcement part 13 is located below the cylinder 12, and the reinforcement flange 16 is fixed between the reinforcement part 13 and the cylinder 12 to improve the rigidity of the cylinder 12; the bending convex head 11 A mold spare slot 17 is provided on the top, and the mold spare slot 17 is used to install other molds to meet the production of different busbar specifications.

The die includes a rectangular body 21, the left side of the body 21 is provided with an inverted trapezoidal groove 22, the right side of the body 21 is provided with a die mounting part 25, and the die mounting part 25 is used to cooperate with the stamping mechanism so that The die is installed stably, and the specific structure of the die mounting part 25 belongs to the prior art and will not be described. The two waists of the inverted trapezoidal groove 22 and the junction of the left side of the body 21 are all provided with positioning holes; the two folding doors 23 are fixedly connected with a rotating column 24, and the rotating column 24 is located in the positioning hole, so that the two doors The bending door 23 and the body 21 are fixed in rotation; one end of the bending door 23 exceeds the opening of the inverted trapezoidal groove 22 so that the opening of the inverted trapezoidal groove 22 is covered. When the bending door 23 is rotated under force , the bending door 23 rotates towards the inside of the inverted trapezoidal groove 22; a channel is opened inside the body 21 and the die mounting part 25, and a spring plug 26 is fixedly connected to the die mounting part 25 in the channel, and the spring 27 is in the In the channel, one end of the push rod 28 is against the spring 27, and the other end of the push rod 28 is against the two bending doors 23; when the bending door 23 is forced to rotate, the bending door 23 drives the push rod 28 to move so that the spring 27 is in a compressed state. When the force of the bending door 23 is released, the spring 27 returns to drive the push rod 28 to move so that the bending door 23 returns; Ensure close contact between the bending door 23 and the busbar.

Claims (8)

1. A bus bending die, comprising a punch and a die, the punch includes a cylinder, and one side of the cylinder is provided with a bending protrusion; it is characterized in that: between the bending protrusion and the cylinder It is detachably fixed, and the contact surface between the bent convex head and the cylinder is an arc concave surface, and the arc concave surface matches the outer circle of the cylinder. 2. The busbar bending die according to claim 1, characterized in that: a reinforcing part is provided under the column, and the reinforcing part and the lower part of the column are fixed by a reinforcing flange. 3. The busbar bending die according to claim 1, characterized in that it comprises a fixing bolt, which passes through the cylinder and connects with the bending boss so as to fix the bending boss and the cylinder. 4. The busbar bending die according to claim 1, characterized in that: the bending boss is provided with a spare slot for the die. 5. The busbar bending die according to claim 1, characterized in that: the die includes a body; the body is provided with a die mounting part, a groove is opened on one side of the body, and two A bending door is fixed to rotate with the body, one end of the bending door covers the opening of the groove; when the bending door rotates under force, one end of the bending door extends into the groove. 6. The busbar bending die according to claim 5, characterized in that: the groove is an inverted trapezoidal groove, positioning holes are provided on both sides of the groove, and a rotating column is provided in the positioning hole, and the The rotating column is fixed to the corresponding bending door; the bending door rotates with the center of the positioning column as the center of rotation. 7. The busbar bending die according to claim 6, characterized in that: the die is also provided with a return device for returning the bending door after rotation. 8. The busbar bending die according to claim 7, characterized in that: the return device includes a push rod, a return spring, and a spring plug; there is a passage inside the body or the body and the die installation part, and the spring plug The head is located in the channel and is fixedly connected with the body or the die mounting part; one end of the spring located in the channel is against the spring plug, and the other end is against one end of the ejector rod, and one end of the ejector rod extends into the trapezoidal groove Compensate with the bending door.