CN106938295B - Processing technology for case circuit board locker handle - Google Patents

Abstract

The invention discloses a processing technology of a machine case circuit board locker handle. Blanking: the workpiece enters a left and right lug drawing blanking die, and is punched and formed into left and right symmetrical lugs comprising a middle I-shaped part and two bevel edge parts; punching: the lug plate enters a left and right lug plate pulling punching die, and ear lobe parts at the bevel edge parts on the two sides of the lug plate are symmetrically punched; bending: the lug plate enters a left and right lug plate pulling bending die, the lug plates which are symmetrical left and right are turned and bent from the bevel edge part, and the bevel edge part is vertical to the middle I-shaped part; blanking: the lug plate enters a left and right lug plate drawing blanking die, and is divided into two symmetrical lugs from the center line of the middle I-shaped part through a punch. The invention reduces the labor, reduces the production cost, has uniform stress during processing and is more precise in matching.

Description

Processing Technology of the Locking Device Handle of the Circuit Board of the Chassis

technical field

The invention belongs to the technical field of locker handle processing, and in particular relates to a process for processing a locker handle of a circuit board of a case.

Background technique

In order to fix the circuit board of the chassis so that it can work normally and stably, it is necessary to lock the handle of the locker. The handle of the existing locking device is generally a split structure, and the two sides are generally produced separately during production, so that two sets of molds are required, which increases labor and increases production costs.

The information disclosed in this Background section is only for enhancing the understanding of the general background of the present invention and should not be taken as an acknowledgment or any form of suggestion that the information constitutes the prior art that is already known to those skilled in the art.

Contents of the invention

The object of the present invention is to provide a process for processing the handle of the circuit board locker of the case, so as to overcome the above-mentioned defects in the prior art.

In order to achieve the above object, the invention provides a process for processing the handle of the circuit board locker of the case, the steps of which are as follows:

(1) Blanking: The workpiece enters the left and right lifting lug blanking dies, and is stamped and formed into symmetrical lugs including the middle I-shaped part and the beveled parts on both sides;

(2) Punching: the ear piece enters the punching die of the left and right lifting ear piece, and punches symmetrically on the earlobes of the hypotenuses on both sides of the ear piece;

(3) Bending: the lugs enter the left and right lifting lug bending dies, and the left and right symmetrical lugs are turned over and bent from the hypotenuse, and the hypotenuse is perpendicular to the middle I-shaped part;

(4) Punching: The lugs enter the left and right lifting lug punching dies, and the lugs are divided into two symmetrical pieces from the center line of the middle I-shaped part by the punch.

Preferably, in the technical solution, in step (1), the blanking die for lifting and pulling the left and right tabs includes a lower die, a stripping plate, and a punch, and a punch and a stripping plate are arranged above the lower die; the workpiece is placed on the lower die Up, the punch moves downward, the lower die bears against the unloading plate, the punch punches the workpiece, and a left-right symmetrical ear piece including the middle I-shaped part and the hypotenuse parts on both sides is formed on the workpiece. The punch resets and the ear The slices are separated from the stripper plate.

Preferably, in the technical solution, in step (2), the punching die for pulling out the left and right lugs includes a lower die, a stripping plate, and a punching pin, and a punching pin and a stripping plate are arranged above the lower die; the lugs are placed on the lower On the die, the punching pins are aimed at the earlobes of the hypotenuses on both sides of the lugs, the punching pins move downwards, the lower mold withstands the unloading plate, the punching pins punch the lugs, the punching pins reset, and the lugs are separated from the unloading plate.

Preferably, in the technical solution, in step (2), the punching pins are arranged symmetrically, and each side is provided with two big and small punching pins. There are two holes, one big and one small.

Preferably, in the technical solution, in step (3), the left and right lifting lug bending molds include a lower mold, a stripper plate, an upper mold, a positioning block, and a spring, and a hole is opened in the center of the lower mold, and a hole is arranged in the hole Spring, the top of the spring is provided with a stripping plate, the lower mold is provided with a positioning block, the upper mold is set opposite to the lower mold; the ear piece is placed on the stripping plate, the stripping plate is arranged on the lower mold, and the edge of the upper mold is aligned The junction between the hypotenuse of the lug and the middle I-shaped part is positioned by the positioning blocks on the front and rear of the lug on the lower mold, the upper mold presses the middle I-shaped part of the lug downward, and the bottom of the unloading plate The spring is compressed, the stripper plate drives the lug down, the middle I-shaped part of the lug sinks and forms an included angle of ^90o with the hypotenuse, the upper mold resets, and the lug is separated from the stripper plate.

Preferably, in the technical solution, in step (4), the left and right lifting lug blanking dies include a lower die, a stripping plate, a punch, and a positioning block, the lower die is provided with a positioning block, and the lower die is provided with a Unloading plate, punch; the lugs are placed on the lower die, the punch is aligned with the center line of the I-shaped part in the middle of the lug, and positioned by the positioning blocks on both sides and front of the lugs on the lower die, the punch moves toward the The lower movement, the lower mold withstands the discharge plate, the punch punches the ear piece, divides the ear piece into two symmetrical pieces, the punch resets, and the ear piece is separated from the discharge plate.

Compared with the prior art, the present invention has the following beneficial effects:

The workpiece is formed into two symmetrical lugs through four steps of blanking, punching, bending, and punching, which reduces the use of molds, reduces labor, and reduces production costs. In addition, the two lugs are processed as a whole, and the force is even and the fit is more precise.

Description of drawings:

Fig. 1 is the processing flow chart of the handle of the box circuit board locking device of the present invention;

Fig. 2 is a structural schematic diagram of the blanking die for lifting and pulling the ear pieces from the left and right sides of the machine of the present invention;

Fig. 3 is a structural schematic diagram of the punching die of the left and right ear pieces of the present invention;

Fig. 4 is a structural schematic diagram of the bending die for pulling out the left and right tabs of the present invention;

Fig. 5 is a structural schematic diagram of the punching die of the left and right lifting lugs of the present invention;

The reference signs are: 1-ear piece, 2-left and right lifting ear piece blanking die, 3-left and right lifting ear piece punching die, 4-left and right lifting ear piece bending die, 5-left and right lifting ear piece Blanking die, 10-I-shaped part, 11-bevel part, 20-lower die, 21-unloading plate, 22-punch, 30-lower die, 31-unloading plate, 32-punching needle, 40 -Lower die, 41-unloading plate, 42-upper die, 43-positioning block, 44-spring, 50-lower die, 51-discharging plate, 52-punch, 53-positioning block.

Detailed ways:

Specific embodiments of the present invention are described in detail below, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations thereof such as "includes" or "includes" and the like will be understood to include the stated elements or constituents, and not Other elements or other components are not excluded.

As shown in Figure 1-5, a process for processing the handle of the circuit board locker of the chassis, the steps are as follows:

(1) Blanking: the workpiece enters the blanking die 2 of the left and right lifting lugs, the workpiece is placed on the lower die 20, the punch 22 moves downward, the lower die 20 withstands the unloading plate 21, and the punch 22 stamps the workpiece. Form left-right symmetrical lugs 1 including the middle I-shaped part 10 and hypotenuse parts 11 on both sides on the workpiece, reset the punch 22, and separate the lugs 1 from the discharge plate 21;

(2) Punching: the ear piece 1 enters the left and right lifting ear piece punching die 3, the ear piece 1 is placed on the lower mold 30, and the punching needles 32 are arranged symmetrically. Align the earlobe parts of the hypotenuse parts 10 on both sides of the ear piece 1, the punching needle 32 moves downward, the lower die 30 withstands the unloading plate 31, and the punching needle 32 punches holes symmetrically on the earlobe parts on both sides of the ear piece 1, and each side Two holes, one large and one small, are formed on the earlobe, the punching needle 32 is reset, and the ear piece 1 is separated from the discharge plate 31;

(3) Bending: the lug 1 enters the left and right lifting lug bending die 4, the lug 1 is placed on the unloading plate 41, the unloading plate 41 is set on the lower die 40, and the edge of the upper die 42 is aligned with the lug 1 The junction of the hypotenuse part 11 and the middle I-shaped part 10 is positioned by the positioning blocks 43 located on the front and rear of the ear piece 1 on the lower mold 40, and the upper mold 42 pushes the middle I-shaped part 10 of the ear piece 1 downward. Press, the spring 44 at the bottom of the unloading plate 41 is compressed, the unloading plate 41 drives the lug 1 to descend, the middle I-shaped part 10 of the lug 1 sinks and forms an included angle of 90 ^° with the hypotenuse part 11, and the upper mold 42 Reset, the lug 1 is separated from the discharge plate 41;

(4) Punching: the ear piece 1 enters the left and right lifting ear piece punching die 5, the ear piece 1 is placed on the lower die 50, the punch 52 is aligned with the centerline of the I-shaped part 10 in the middle of the ear piece 1, and is set on the lower mold The positioning blocks 53 located on both sides and the front of the lug 11 on the die 50 are positioned, the punch 52 moves downward, the lower die 50 withstands the unloading plate 51, the punch 52 stamps the lug 1, and the lug 1 is divided into two parts. It is two symmetrical pieces, the punch 52 is reset, and the ear piece 1 is separated from the discharge plate 51.

The exemplary embodiments were chosen and described in order to explain the specific principles of the invention and its practical application, thereby enabling others skilled in the art to make and use various exemplary embodiments of the invention, as well as various Choose and change. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims (6)

1. A process for processing the handle of the circuit board locking device of a case, the steps of which are as follows: (1) Blanking: The workpiece enters the left and right lifting lug blanking dies, and is stamped and formed into symmetrical lugs including the middle I-shaped part and the beveled parts on both sides; (2) Punching: the ear piece enters the punching die of the left and right lifting ear piece, and punches symmetrically on the earlobes of the hypotenuses on both sides of the ear piece; (3) Bending: the lugs enter the left and right lifting lug bending dies, and the left and right symmetrical lugs are turned over and bent from the hypotenuse, and the hypotenuse is perpendicular to the middle I-shaped part; (4) Punching: The lugs enter the left and right lifting lug punching dies, and the lugs are divided into two symmetrical pieces from the center line of the middle I-shaped part by the punch. 2. The process for processing the handle of the case circuit board locker according to claim 1, characterized in that: in step (1), the blanking mold for lifting and pulling the left and right tabs includes a lower mold, a stripping plate, and a punch, and the There are punches and unloading plates above the lower die; the workpiece is placed on the lower die, the punch moves downward, the lower die withstands the unloading plate, the punch punches the workpiece, and forms a left-right symmetrical shape on the workpiece including the middle I The lugs on the shaped part and the hypotenuses on both sides, the punch is reset, and the lugs are separated from the discharge plate. 3. The process for processing the handle of the case circuit board locker according to claim 1, characterized in that in step (2), the punching dies for the left and right pulling tabs include a lower die, a stripping plate, and a punching needle, and the There are punching pins and unloading plates above the lower die; the lugs are placed on the lower die, and the punching pins are aimed at the earlobe parts of the hypotenuses on both sides of the lugs. Punching is carried out, the punching needle is reset, and the lug is separated from the discharge plate. 4. The process for processing the handle of the case circuit board locker according to claim 3, characterized in that: in step (2), the punching pins are arranged symmetrically, each side is provided with two punching pins of different sizes, and the punching pins are located on the lugs The earlobe parts on both sides are symmetrically punched, and two holes, one big and one small, are formed on the earlobe parts on each side. 5. The process for processing the handle of the case circuit board locking device according to claim 1, characterized in that: in step (3), the bending mold for lifting and pulling the left and right tabs includes a lower mold, a stripping plate, an upper mold, and a positioning block 1. Spring, the center of the lower mold has a hole, the hole is provided with a spring, the top of the spring is provided with a discharge plate, the lower mold is provided with a positioning block, and the upper mold is set opposite to the lower mold; the ear piece is placed on the discharge plate On the plate, the unloading plate is set on the lower mold, and the edge of the upper mold is aligned with the junction of the hypotenuse of the lug and the middle I-shaped part, and is positioned by the positioning blocks located on the front and rear of the lug on the lower mold, and the upper mold Press down the I-shaped part in the middle of the lug, the spring at the bottom of the unloading plate is compressed, the unloading plate drives the lug down, and the I-shaped part in the middle of the lug sinks to form an included angle of 90 ^o with the hypotenuse. The upper mold resets, and the lugs are separated from the discharge plate. 6. The process for processing the handle of the case circuit board locking device according to claim 1, characterized in that: in step (4), the punching dies for the left and right lifting lugs include a lower die, a stripping plate, a punch, and a positioning block , the lower die is provided with a positioning block, and a stripping plate and a punch are arranged above the lower die; the lugs are placed on the lower die, and the punch is aligned with the center line of the I-shaped part in the middle of the ear, and is set on the lower die The positioning blocks located on both sides and the front of the ear piece are positioned, the punch moves downward, the lower die withstands the unloading plate, the punch punches the ear piece, and the ear piece is divided into two symmetrical pieces, the punch resets, and the ear piece The slices are separated from the stripper plate.