Stamping die for wire holder of circuit breaker

Abstract

The utility model relates to the field of stamping dies, in particular to a circuit breaker wire holder stamping die which comprises a lower die body, a supporting block and an upper die body, a limiting groove is formed in the upper end of the lower die body and used for limiting a blank, the limiting groove extends towards the two ends to penetrate through the lower die body, and a feeding port and a discharging port are formed in the two ends of the limiting groove respectively. The supporting block is fixedly connected to the groove bottom of the limiting groove and used for supporting a blank, the upper die and the lower die are combined to form a die cavity, and a pre-punching piece, a modeling piece, an embossing piece, a reaming piece, a separating piece, a distance expanding piece, a trimming piece and a cutting piece are sequentially arranged in the die cavity in the direction from the feeding port to the discharging port. When the circuit breaker wire holder is machined, the blank is moved, so that the blank is sequentially subjected to pre-punching, modeling, embossing, chambering, separating, distance expanding, trimming and cutting, machining is completed, the blank transferring time is shortened, and the production efficiency and the production quality of the circuit breaker wire holder are improved.

Description

Technical Field

[0001] The present application relates to the field of stamping dies, and in particular to a stamping die for a circuit breaker terminal block. Background Art

[0002] Circuit breaker terminal blocks are key components in power systems that connect circuit breakers to power lines, load lines, etc. Their design and selection are crucial to ensuring safe, stable, and efficient operation of circuits. Circuit breaker terminal blocks are usually made by die stamping.

[0003] When a circuit breaker terminal block is manufactured using a circuit breaker terminal block stamping die, the blank of the circuit breaker terminal block often needs to be transferred on multiple dies, which affects the production efficiency of the circuit breaker terminal block. Utility Model Content

[0004] In order to improve the production efficiency of a circuit breaker terminal block, the present application provides a circuit breaker terminal block stamping die.

[0005] The present application provides a circuit breaker terminal block stamping die adopts the following technical solution:

[0006] A circuit breaker terminal block stamping die comprises a lower die, a support block and an upper die, wherein a limiting groove is provided at the upper end of the lower die, the limiting groove is used to limit the blank, the limiting groove extends to both ends to penetrate the lower die, the two ends of the limiting groove are respectively set as a feed port and a discharge port, the support block is fixedly connected to the bottom of the limiting groove, the support block is used to support the blank, the upper die and the lower die are combined to form a die cavity, and along the direction from the feed port to the discharge port, the die cavity is sequentially provided with a pre-punching part, a shaping part, an embossing part, a hole expansion part, a separation part, a distance expansion part, a trimming part and a cutting part.

[0007] By adopting the above technical solution, when processing the circuit breaker terminal block, the blank is moved so that the blank is sequentially subjected to pre-punching, shaping, embossing, hole expansion, separation, distance expansion, trimming and cutting to complete the processing, thereby reducing the time for blank transfer and improving the production efficiency and production quality of the circuit breaker terminal block.

[0008] Preferably, the pre-punching member comprises a pre-punching block, the pre-punching block is fixedly connected to the lower end of the upper die, and the bottom of the limiting groove is provided with an avoidance opening, and the avoidance opening is arranged opposite to the pre-punching block.

[0009] By adopting the above technical solution, the upper die and the lower die are closed, the pre-punching block punches holes on the blank, and the avoidance opening provides an avoidance groove for the pre-punching block, which facilitates the hole forming of the blank.

[0010] Preferably, the molding part comprises a molding block, and the molding block is fixedly connected to the lower end of the upper mold.

[0011] By adopting the above technical solution, a depression is pressed into the blank using a molding block, so as to facilitate modification of the appearance of the circuit breaker connection seat.

[0012] Preferably, the embossing part comprises an embossing block, the embossing block is fixedly connected to the lower end of the upper die, the lower end of the embossing block is fixedly connected with a plurality of convex points, and the plurality of convex points are distributed in an array.

[0013] By adopting the above technical solution, when the upper die and the lower die are closed, the multiple protrusions on the embossing block punch the blank, so that multiple concave points are generated on the blank, thereby increasing the friction between the circuit breaker terminal block and the wire.

[0014] Preferably, the embossing part also includes a fixed block and a fixed column, the fixed block is fixedly connected to the bottom of the limiting groove, the upper end of the fixed block is provided with a fixed groove, the fixed block is used to support the blank, the fixed column is fixedly connected to the lower end of the embossing block, and the fixed column is used to penetrate into the fixed groove.

[0015] By adopting the above technical solution, while the embossing block embosses the blank, the fixed column penetrates into the fixed groove, and the fixed column preliminarily expands the hole formed on the blank after the pre-punching piece, so as to facilitate subsequent processing.

[0016] Preferably, the hole expanding component includes a spring, a sliding column and a hole expanding column. The bottom of the limiting groove is provided with a sliding groove. The lower end of the spring is fixedly connected to the bottom of the sliding groove. The upper end of the spring is fixedly connected to the sliding column. The sliding column is slidably connected to the groove wall of the sliding groove. The hole expanding column is fixedly connected to the lower end of the upper mold, and the lower end of the hole expanding column is used to abut the upper end of the sliding column.

[0017] By adopting the above technical solution, when the upper die and the lower die are closed, the hole expanding column expands the hole on the blank, and the hole expanding column abuts the sliding column to facilitate hole expansion. When the sliding column is reset, it is convenient to separate the blank and the lower die.

[0018] Preferably, two of each of the pre-punching member, the embossing member, the expanding member and the trimming member are provided, and the two pre-punching members, the two embossing members, the two expanding members and the two trimming members are symmetrically arranged about the axis of symmetry in the length direction of the limiting groove.

[0019] By adopting the above technical solution, two circuit breaker terminal blocks can be processed synchronously during the movement of the blank, thereby improving the processing efficiency.

[0020] Preferably, the separating member comprises a separating block, the separating block is fixedly connected to the lower end of the upper die, the separating block is used to separate the blank, and the expanding member comprises an expanding block, the expanding block is fixedly connected to the lower end of the upper die.

[0021] By adopting the above technical solution, the separation block facilitates separation of adjacent circuit breaker terminal blocks, and the distance expansion block increases the distance between adjacent circuit breaker terminal blocks.

[0022] Preferably, the trimming member comprises a trimming blade, and the trimming blade is fixedly connected to the lower end of the upper mold.

[0023] By adopting the above technical solution, the trimming blade cuts off the edge of the circuit breaker terminal block to achieve trimming.

[0024] Preferably, the cutting piece comprises a cutting blade, and the cutting blade is fixedly connected to the lower end of the upper mold.

[0025] By adopting the above technical solution, the cutting blade separates the formed circuit breaker terminal block from the blank.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. When processing the circuit breaker terminal block, the blank is moved so that the blank undergoes pre-punching, shaping, embossing, hole expansion, separation, distance expansion, trimming and cutting in sequence to complete the processing, thereby reducing the time for blank transfer and improving the production efficiency and quality of the circuit breaker terminal block;

[0028] 2. When the upper die and the lower die are closed, the multiple protrusions on the embossing block punch the blank, so that multiple concave points are generated on the blank, which increases the friction between the circuit breaker terminal block and the wire;

[0029] 3. When the upper die and the lower die are closed, the hole-expanding column expands the hole on the blank, and the hole-expanding column abuts against the sliding column to facilitate hole expansion. When the sliding column is reset, it is convenient to separate the blank and the lower die. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 The invention discloses a schematic diagram of the overall structure of a stamping die for a circuit breaker terminal block.

[0031] Figure 2 It is a schematic diagram of the overall structure of the lower mold and the support block.

[0032] Figure 3 It is a schematic diagram of the overall structure of an upper die, a pre-punching part, a shaping part, an embossing part, a hole expanding part, a separating part, a distance expanding part, a trimming part and a cutting part.

[0033] Description of reference numerals: 1, upper support plate; 11, guide opening; 2, lower support plate; 3, upper die; 4, lower die; 41, limit groove; 411, avoidance opening; 412, sliding groove; 42, feed opening; 43, discharge opening; 44, mold cavity; 5, guide column; 61, pre-punching member; 611, pre-punching block; 62, molding member; 621, molding block; 63, embossing member; 631, embossing block; 631 1. Bump; 632. Fixed block; 6321. Fixed groove; 633. Fixed column; 64. Hole expansion member; 641. Spring; 642. Sliding column; 643. Hole expansion column; 644. Positioning column; 65. Separation member; 651. Separation block; 66. Distance expansion member; 661. Distance expansion block; 67. Trimming member; 671. Trimming blade; 68. Cutting member; 681. Cutting blade; 7. Support block. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-3 This application is described in further detail.

[0035] The present application embodiment discloses a circuit breaker terminal block stamping die. Figure 1 and Figure 2 A circuit breaker terminal block stamping die comprises an upper support plate 1, a lower support plate 2, an upper die 3, a lower die 4, a guide column 5 and a support block 7.

[0036] Reference Figure 1 The upper support plate 1 is arranged above the lower support plate 2, the upper mold 3 is fixedly connected to the lower end of the upper support plate 1, the lower mold 4 is fixedly connected to the upper end of the lower support plate 2, and the guide column 5 is fixedly connected to the upper end of the lower support plate 2. There are two guide columns 5, which are respectively arranged on both sides of the lower mold 4. The axis of the guide column 5 is vertical. The upper support plate 1 is provided with a guide port 11, and there are two guide ports 11, which are respectively arranged on both sides of the upper mold 3. The guide ports 11 are arranged one by one with the guide columns 5. The guide columns 5 are slidably connected to the inner wall of the guide ports 11. The upper support plate 1 slides up and down along the axial direction of the guide columns 5, and a hydraulic cylinder or an oil cylinder is used to drive the upper support plate 1 to slide up and down.

[0037] Reference Figure 2 and Figure 3The upper end of the lower die 4 is provided with a limiting groove 41, the length direction of the limiting groove 41 is parallel to the length direction of the lower die 4, the limiting groove 41 is used to limit the blank, the limiting groove 41 extends to both ends to penetrate the lower die 4, the two ends of the limiting groove 41 are respectively set as the feed port 42 and the discharge port 43, the upper die 3 and the lower die 4 are combined to form a die cavity 44, along the direction from the feed port 42 to the discharge port 43, the die cavity 44 is uniformly spaced in sequence with pre-punching parts 61, shaping parts 62, embossing parts 63, hole expansion parts 64, separating parts 65, distance expansion parts 66, trimming parts 67 and cutting parts 68. There are two pre-punching parts 61, embossing parts 63, hole expansion parts 64 and trimming parts 67, and the two pre-punching parts 61, the two embossing parts 63, the two hole expansion parts 64 and the two trimming parts 67 are symmetrically arranged about the symmetry axis in the length direction of the limiting groove 41.

[0038] The pre-punching part 61 is used to punch holes on the blank, the shaping part 62 is used to extrude the blank, the embossing part 63 is used to extrude the required patterns on the blank, the expanding part 64 is used to expand the punched holes, and two groups of circuit breaker terminal block semi-finished products can be processed on one blank. The separating part 65 is used to separate the two groups of circuit breaker terminal block semi-finished products, the distance expanding part 66 is used to increase the distance between the two groups of circuit breaker terminal block semi-finished products, the trimming part 67 is used to modify the edge of the circuit breaker terminal block semi-finished product, and the cutting part 68 is used to separate the circuit breaker terminal block finished product from the blank to complete the processing of the circuit breaker terminal block.

[0039] Reference Figure 2 and Figure 3 The support block 7 is fixedly connected to the bottom of the limiting groove 41. The support block 7 is arranged on one side of the pre-punching member 61 close to the feed port 42. The support block 7 is used to support the blank. There are multiple support blocks 7, and the multiple support blocks 7 are evenly divided into two groups. The two groups of support blocks 7 are symmetrically arranged about the symmetry axis in the length direction of the limiting groove 41.

[0040] The pre-punching member 61 includes a pre-punching block 611, which is fixedly connected to the lower end of the upper die 3. There are multiple pre-punching blocks 611, and the shapes of the multiple pre-punching blocks 611 are different, which is convenient for punching out required holes of different shapes on the blank. The bottom of the limiting groove 41 is provided with an avoidance opening 411, and there are multiple avoidance openings 411. The avoidance openings 411 are arranged in a one-to-one correspondence with the pre-punching blocks 611. The shaping member 62 includes a shaping block 621, which is fixedly connected to the lower end of the upper die 3.

[0041] Reference Figure 2 and Figure 3The embossing member 63 includes an embossing block 631, a fixing block 632 and a fixing column 633. The embossing block 631 is fixedly connected to the lower end of the upper die 3. The lower end of the embossing block 631 is fixedly connected with a plurality of convex points 6311, and the plurality of convex points 6311 are arranged in an array. The fixing block 632 is fixedly connected to the bottom of the limiting groove 41. The fixing block 632 is arranged between the pre-punching member 61 and the expanding member 64. The upper end of the fixing block 632 is used to abut the blank. There are four fixing blocks 632. The four fixing blocks 632 are evenly divided into two groups. The two groups of fixing blocks 632 are symmetrically arranged about the symmetry axis in the length direction of the limiting groove 41. Each group of fixing blocks 632 is arranged at intervals along the length direction of the limiting groove 41. The upper end of the fixing block 632 is provided with a fixing groove 6321. The fixing column 633 is fixedly connected to the lower end of the embossing block 631. The fixing column 633 is used to penetrate into the fixing groove 6321 to realize pre-expansion of the hole on the blank.

[0042] The hole expansion member 64 includes a spring 641, a sliding column 642, a hole expansion column 643 and a positioning column 644. The bottom of the limiting groove 41 is provided with a sliding groove 412. The lower end of the spring 641 is fixedly connected to the bottom of the sliding groove 412. The upper end of the spring 641 is fixedly connected to the sliding column 642. The sliding column 642 is slidably connected to the groove wall of the sliding groove 412. The hole expansion column 643 is fixedly connected to the lower end of the upper mold 3. The lower end of the hole expansion column 643 is used to abut the upper end of the sliding column 642. The positioning column 644 is fixedly connected to the bottom of the limiting groove 41. The positioning column 644 is arranged on the side of the sliding column 642 close to the symmetry axis in the length direction of the limiting groove 41.

[0043] Reference Figure 2 and Figure 3 The separation member 65 includes a separation block 651, which is fixedly connected to the lower end of the upper mold 3. The expansion member 66 includes an expansion block 661, which is fixedly connected to the lower end of the upper mold 3. The trimming member 67 includes a trimming blade 671, which is fixedly connected to the lower end of the upper mold 3. The cutting member 68 includes a cutting blade 681, which is fixedly connected to the lower end of the upper mold 3 and is arranged in the discharge port 43.

[0044] The implementation principle of a circuit breaker terminal block stamping die in an embodiment of the present application is as follows: the blank enters the limiting groove 41 from the feed port 42, moves along the length direction of the limiting groove 41, and is discharged from the discharge port 43. During the movement, the blank is sequentially processed by the pre-punching part 61, the shaping part 62, the embossing part 63, the hole expanding part 64, the separating part 65, the distance expanding part 66, the trimming part 67 and the cutting part 68 to finally form a circuit breaker terminal block. There is no need to transfer the blank during production, thereby improving the processing efficiency and quality.

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A circuit breaker terminal block stamping die, characterized in that: The invention comprises a lower die (4), a support block (7) and an upper die (3); a limiting groove (41) is provided at the upper end of the lower die (4); the limiting groove (41) is used to limit the blank; the limiting groove (41) extends to both ends to penetrate the lower die (4); the two ends of the limiting groove (41) are respectively provided with a feed port (42) and a discharge port (43); the support block (7) is fixedly connected to the bottom of the limiting groove (41); the support block (7) is used to support the blank; the upper die (3) and the lower die (4) are combined to form a die cavity (44); along the direction from the feed port (42) to the discharge port (43), the die cavity (44) is provided with a pre-punching part (61), a shaping part (62), an embossing part (63), a hole expanding part (64), a separating part (65), a distance expanding part (66), a trimming part (67) and a cutting part (68) in sequence.

2. A circuit breaker terminal block stamping die according to claim 1, characterized in that: The pre-punching member (61) comprises a pre-punching block (611), the pre-punching block (611) being fixedly connected to the lower end of the upper die (3), and a groove bottom of the limiting groove (41) being provided with an avoidance opening (411), the avoidance opening (411) being arranged opposite to the pre-punching block (611).

3. A circuit breaker terminal block stamping die according to claim 1, characterized in that: The molding component (62) comprises a molding block (621), and the molding block (621) is fixedly connected to the lower end of the upper mold (3).

4. A circuit breaker terminal block stamping die according to claim 1, characterized in that: The embossing piece (63) comprises an embossing block (631), wherein the embossing block (631) is fixedly connected to the lower end of the upper die (3), and a plurality of convex points (6311) are fixedly connected to the lower end of the embossing block (631), wherein the plurality of convex points (6311) are distributed in an array.

5. A circuit breaker terminal block stamping die according to claim 4, characterized in that: The embossing member (63) further comprises a fixing block (632) and a fixing column (633); the fixing block (632) is fixedly connected to the bottom of the limiting groove (41); a fixing groove (6321) is provided at the upper end of the fixing block (632); the fixing block (632) is used to support the blank; the fixing column (633) is fixedly connected to the lower end of the embossing block (631); the fixing column (633) is used to penetrate into the fixing groove (6321).

6. A circuit breaker terminal block stamping die according to claim 1, characterized in that: The hole expanding member (64) comprises a spring (641), a sliding column (642) and a hole expanding column (643); the bottom of the limiting groove (41) is provided with a sliding groove; the lower end of the spring (641) is fixedly connected to the bottom of the sliding groove; the upper end of the spring (641) is fixedly connected to the sliding column (642); the sliding column (642) is slidably connected to the groove wall of the sliding groove; the hole expanding column (643) is fixedly connected to the lower end of the upper mold (3); and the lower end of the hole expanding column (643) is used to abut against the upper end of the sliding column (642).

7. A circuit breaker terminal block stamping die according to claim 1, characterized in that: The pre-punching member (61), the embossing member (63), the hole expanding member (64) and the trimming member (67) are each provided with two, and the two pre-punching members (61), the two embossing members (63), the two hole expanding members (64) and the two trimming members (67) are all symmetrically arranged about a symmetry axis in the length direction of the limiting groove (41).

8. A circuit breaker terminal block stamping die according to claim 7, characterized in that: The separation member (65) comprises a separation block (651), the separation block (651) being fixedly connected to the lower end of the upper die (3), the separation block (651) being used to separate the blank, and the expansion member (66) comprises an expansion block (661), the expansion block (661) being fixedly connected to the lower end of the upper die (3).

9. A circuit breaker terminal block stamping die according to claim 1, characterized in that: The trimming member (67) comprises a trimming blade (671), and the trimming blade (671) is fixedly connected to the lower end of the upper mold (3).

10. The circuit breaker terminal block stamping die according to claim 1, characterized in that: The cutting piece (68) comprises a cutting blade (681), and the cutting blade (681) is fixedly connected to the lower end of the upper mold (3).

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