Metal junction box stamping die

Abstract

The utility model provides a stamping die for a metal junction box, which comprises a lower die seat, a lower die seat, an upper die seat, an upper die seat and a lower die seat, the upper die base is located over the lower die base, a guide column is arranged between the upper die base and the base plate, a fixing plate is arranged on the upper die base, and male dies matched with the female dies are symmetrically arranged on the fixing plate; and the cooling unit is located in the fixing plate, and the cooling unit comprises a connecting and guiding pipe, a supporting frame and a heat dissipation block arranged on the supporting frame. According to the stamping die for the metal junction box, the cooling unit is utilized, the male die is rubbed to generate a large amount of heat under long-time stamping of the die, cooling liquid is guided to flow to the transverse pipe through the guide pipe, the transverse pipe makes contact with the heat dissipation block so that the heat of the male die can be reduced, and the heat dissipation effect of the male die can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of junction box moulds, in particular to a metal junction box stamping mould. Background Art

[0002] The junction box is mainly composed of a box body, a box cover and a terminal block. The positive and negative cables are connected through the terminal block to transmit the electric energy, while the box body and the box cover protect the cable connection end. The box body is usually made of metal sheets. The metal sheet is placed under the stamping die, and the metal sheet is deformed into a box body under the extrusion of the punch. Due to the high temperature of the punch under continuous long-term stamping of the die, the product will stick and be difficult to remove, which will also affect the service life of the punch. Utility Model Content

[0003] The utility model aims at the above-mentioned problems existing in the prior art, and aims to solve the problem that the punch affects product production and accelerates the damage of the punch after continuous long-term use.

[0004] In order to achieve the above-mentioned purpose, the utility model can be implemented through the following technical solutions: A metal junction box stamping die, comprising:

[0005] A lower die base, the top of which is provided with a pad, and the pad is provided with a concave die;

[0006] An upper die seat, which is located directly above the lower die seat, a guide column is arranged between the upper die seat and the pad, a fixing plate is arranged on the upper die seat, and a convex die matching with the concave die is symmetrically arranged on the fixing plate;

[0007] A cooling unit is located in the fixed plate, and the cooling unit includes a connecting pipe, a support frame and a heat sink block arranged on the support frame. The connecting pipe is provided with transverse pipes matching the heat sink block in a linear array, and the convex mold is clamped in the support frame and in contact with the heat sink block.

[0008] In the embodiment of the utility model, the heat dissipation block is provided with an arc groove which fits with the transverse tube, and at least two groups of the transverse tube are provided.

[0009] In an embodiment of the utility model, the fixing plate has a water inlet and a water outlet, and the water inlet and the water outlet are both threadedly connected with a joint, and the joint is connected to the connecting pipe.

[0010] In the embodiment of the utility model, a second spring located between the upper die seat and the lower die seat is arranged on the guide column.

[0011] In an embodiment of the utility model, a clamping unit cooperating with the die is symmetrically arranged on the pad, and the clamping unit includes a slider, a pressing column and a first spring arranged in the slider, the first spring pushes the pressing column to slide axially, a step block is arranged on the slider, and the slider is located on the pad and the lower die base and slides.

[0012] In the embodiment of the utility model, a squeezing wheel is arranged on the pressing column.

[0013] In the embodiment of the utility model, the lower die base is symmetrically provided with cylinders matched with the sliding block.

[0014] In the embodiment of the utility model, pads which match the pad plate are symmetrically arranged on the lower die seat.

[0015] Compared with the prior art, the advantages of the present application are as follows: a cooling unit is utilized, and the punch of the mold generates a large amount of heat due to friction during long-term stamping. The coolant is guided to flow to the transverse tube through a connecting pipe, so that the transverse tube contacts the heat dissipation block to reduce the heat of the punch and improve the heat dissipation effect of the punch. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the overall mold;

[0017] Figure 2 It is a schematic diagram of the internal parts of the overall explosion and the partial section of the fixing plate;

[0018] Figure 3 yes Figure 2 The enlarged partial view A shown;

[0019] Figure 4 It is a partial cross-section of the pad and a schematic diagram of the internal parts assembly structure.

[0020] Description of reference numerals:

[0021] 1. Lower die base; 11. Cylinder; 2. Cushion block; 3. Pad; 30. Support sleeve; 31. Clamping unit; 311. Extrusion wheel; 312. Pressing column; 313. First spring; 314. Slider; 315. Step block; 32. Die; 4. Upper die base; 5. Fixing plate; 51. Joint; 52. Cooling unit; 521. Connecting pipe; 522. Heat sink; 523. Arc groove; 524. Transverse tube; 525. Support frame; 53. Punch; 6. Second spring; 7. Guide column. DETAILED DESCRIPTION

[0022] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention.

[0023] like Figures 1-4As shown in the figure, a stamping die for a metal junction box includes:

[0024] A lower die base 1, on the top of which a backing plate 3 is provided, and a concave die 32 is provided on the backing plate 3;

[0025] An upper die base 4, which is located directly above the lower die base 1. A guide pillar 7 is provided between the upper die base 4 and the backing plate 3. A fixing plate 5 is provided on the upper die base 4, and convex dies 53 that cooperate with the concave die 32 are symmetrically provided on the fixing plate 5;

[0026] A cooling unit 52, which is located inside the fixing plate 5. The cooling unit 52 includes a connecting pipe 521, a support frame 525, and heat dissipation blocks 522 provided on the support frame 525. Transverse pipes 524 that cooperate with the heat dissipation blocks 522 are arranged in a linear array on the connecting pipe 521. The convex die 53 is clamped inside the support frame 525 and contacts the heat dissipation blocks 522.

[0027] Specifically, a backing plate 3 is provided on the top of the lower die base 1, and a concave die 32 is provided on the backing plate 3. The upper die base 4 is located directly above the lower die base 1. A guide pillar 7 is provided between the upper die base 4 and the backing plate 3. A support sleeve 30 is provided on the backing plate 3, and the guide pillar 7 is fixed inside the support sleeve 30. A fixing plate 5 is provided on the upper die base 4, and convex dies 53 that cooperate with the concave die 32 are symmetrically provided on the fixing plate 5. The cooling unit 52 is located inside the fixing plate 5. The cooling unit 52 includes a connecting pipe 521, a support frame 525, and heat dissipation blocks 522 provided on the support frame 525. Transverse pipes 524 that cooperate with the heat dissipation blocks 522 are arranged in a linear array on the connecting pipe 521. The convex die 53 is clamped inside the support frame 525 and contacts the heat dissipation blocks 522. After the die works continuously for a long time, coolant is introduced through the connecting pipe 521, so that the coolant contacts the heat dissipation blocks 522 through the transverse pipes 524, and the heat on the heat dissipation blocks 522 is reduced, that is, the heat of the convex die 53 is reduced, thereby reducing the wear of the convex die 53 and improving its service life.

[0028] As a further embodiment provided by the present utility model, arc grooves 523 that fit the transverse pipes 524 are provided on the heat dissipation blocks 522. At least two groups of transverse pipes 524 are provided. The arc grooves 523 increase the contact area with the transverse pipes 524, that is, improve the heat dissipation effect of the heat dissipation blocks 522. The pipe bodies of the transverse pipes 524 are formed by being parallel and equally spaced around.

[0029] As an embodiment further provided by the present invention, the fixed plate 5 has a water inlet and a water outlet, and the water inlet and the water outlet are both threadedly connected with a joint 51, and the joint 51 is connected to the connecting pipe 521. The joint 51 is connected to an external water pipe to guide the coolant into the fixed block.

[0030] As an embodiment further provided by the present invention, the guide column 7 is provided with a second spring 6 located between the upper die base 4 and the lower die base 1, and the second spring 6 plays a buffering role.

[0031] As an embodiment further provided by the present invention, a clamping unit 31 is symmetrically arranged on the pad 3 to cooperate with the concave die 32, and the clamping unit 31 includes a slider 314, a pressing column 312 and a first spring 313 arranged in the slider 314, and the first spring 313 pushes the pressing column 312 to slide axially, and a step block 315 is arranged on the slider 314, and the slider 314 is located on the pad 3 and the lower die base 1 to slide, and the step block 315 has at least two steps, according to the size of the plate It is placed on different steps, and the slider 314 is moved to make the step blocks 315 at both ends slide toward each other, so as to clamp the metal sheet. When the punch 53 is stamping, the fixed plate 5 will contact the extrusion wheel 311 to make the pressing column 312 slide downward axially to contact the metal sheet, thereby further improving the fixing effect of the metal sheet and preventing it from shaking and tilting during stamping, which may cause deformation of the product. When the punch 53 retracts, the pressing column 312 will push the metal sheet away from the punch 53 to prevent the metal sheet from sticking to the punch 53.

[0032] As an embodiment further provided by the present invention, an extrusion wheel 311 is provided on the pressing column 312, and the surface of the extrusion wheel 311 is made of rubber material, so that the impact force of the fixing plate 5 on the pressing column 312 is reduced when the punch 53 is stamped.

[0033] As an embodiment further provided by the present invention, the lower die base 1 is symmetrically provided with a cylinder 11 matched with the slider 314, and the slider 314 is driven to slide on the pad 3 by the cylinder 11, so that the step block 315 clamps the metal sheet.

[0034] As an embodiment further provided by the present invention, a pad block 2 matching the pad plate 3 is symmetrically arranged on the lower die base 1, and the pad block 2 is fixed between the pad plate 3 and the lower die base 1 by bolts. According to the height of the junction box, the height of the pad block 2 can be changed, that is, the distance between the lower die base 1 and the pad plate 3 can be changed.

[0035] Working principle: a metal sheet is placed on the die 32, and the slider 314 is positioned on the pad 3 and slides through the cylinder 11, so that the step block 315 clamps the metal sheet to fix it, and then the upper die holder 4 runs and slides downward to make the punch 53 squeeze the metal sheet to deform it, and at the same time, the fixed plate 5 will contact the extrusion wheel 311 to apply pressure to the pressing column 312 and slide downward axially, so that at this time, one end of the pressing column 312 fits with the step block 315, thereby improving the clamping effect of the metal sheet, and when the punch 53 slides upward after the punch 53 is stamped, the metal sheet will be restricted by the pressing column 312 and gradually separated from the punch 53, thereby preventing the metal sheet from adhering to the punch 53, thereby improving the stamping effect of the metal sheet, and under continuous long-term stamping, the coolant can be led into the connecting pipe 521 through the joint 51, so that it flows into the transverse pipe 524 and contacts the heat sink 522, thereby reducing the heat on the heat sink 522, slowing down the high wear of the punch 53 under high temperature conditions, and improving the service life of the punch 53.

[0036] The technical solution of the above utility model provides a solution that is significantly different from the prior art to address the technical problem that the prior art solution is too single. The parts not involved in the technical solution of this application are the same as the prior art or can be implemented by using the prior art and will not be described in detail.

[0037] The technical solutions in the above embodiments have clearly and completely described the contents of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Claims

1. A metal junction box stamping die, characterized in that: include: A lower die base, the top of which is provided with a pad, and the pad is provided with a concave die; An upper die seat, which is located directly above the lower die seat, a guide column is arranged between the upper die seat and the pad, a fixing plate is arranged on the upper die seat, and a convex die matching with the concave die is symmetrically arranged on the fixing plate; A cooling unit is located in the fixed plate, and the cooling unit includes a connecting pipe, a support frame and a heat sink block arranged on the support frame. The connecting pipe is provided with transverse pipes matching the heat sink block in a linear array, and the convex mold is clamped in the support frame and in contact with the heat sink block.

2. A metal junction box stamping die according to claim 1, characterized in that: The heat dissipation block is provided with an arc groove which fits with the transverse tube, and at least two groups of the transverse tubes are arranged.

3. A metal junction box stamping die according to claim 1, characterized in that: The fixing plate has a water inlet and a water outlet, and the water inlet and the water outlet are both threadedly connected with a joint, and the joint is connected to the connecting pipe.

4. A metal junction box stamping die according to claim 1, characterized in that: The guide column is provided with a second spring located between the upper die seat and the lower die seat.

5. The metal junction box stamping die according to claim 1, characterized in that: The pad is symmetrically provided with a clamping unit that cooperates with the die, and the clamping unit includes a slider, a pressing column and a first spring arranged in the slider, the first spring pushes the pressing column to slide axially, a step block is arranged on the slider, and the slider is located on the pad and the lower die base and slides.

6. A metal junction box stamping die according to claim 5, characterized in that: The pressing column is provided with an extrusion wheel.

7. The metal junction box stamping die according to claim 5, characterized in that: The lower die base is symmetrically provided with cylinders matched with the sliding blocks.

8. The metal junction box stamping die according to claim 1, characterized in that: The lower die seat is symmetrically provided with cushion blocks matched with the cushion plate.

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