Wiring terminal stamping die

Abstract

The utility model relates to the technical field of stamping processing, and discloses a wiring terminal stamping die which comprises a machine frame, an upper die, a lower die and a hydraulic cylinder, the upper die, the lower die and the hydraulic cylinder are installed on the machine frame, a shifting part is installed on the upper die and used for shifting a stamping plate to advance, the upper die comprises a support, a torsion spring, a connecting shaft and a shifting rod, and the shifting rod is used for pushing the stamping plate; a guide part is mounted on the lower mold, is used for guiding the shifting part and comprises a guide plate group. According to the stamping die, the shifting part is arranged, so that when the upper die moves downwards for stamping every time, the shifting part can push a stamping plate by one unit in advance, a stamped area is moved, and a new stamping area is replaced for stamping of the die; extra power does not need to be arranged to drive the stamping plate to move, and movement of the stamping plate is matched with movement of the die, so that procedure connection is tighter; and the situation that the stamping instruction conflicts with the moving instruction of the stamped plate is avoided, and the operation stability of equipment is improved.

Description

Technical Field

[0001] This utility model relates to the field of stamping technology, specifically, a terminal block stamping die. Background Technology

[0002] Terminal blocks are components used for electrical connections and are widely used in industries such as power, electronics, and machinery. Their main function is to reliably connect wires to equipment or other electrical components through mechanical crimping or screw fastening, thereby ensuring the normal flow of current. Terminal blocks are typically made of conductive materials (such as copper or aluminum) and undergo treatments such as tin plating or nickel plating to improve oxidation resistance and conductivity.

[0003] The production process of terminal blocks involves multiple steps, with stamping being a key process. Stamping is commonly used for forming metal components for terminal blocks, primarily to process metal sheets into the required shapes under pressure. Typically, a stamping press is used to cut the required parts from the sheet metal, followed immediately by stamping; that is, cutting and stamping are completed in one operation to improve work efficiency. However, existing stamping presses usually have an additional drive source (such as a motor-driven drive roller) to move the sheet metal a certain distance each time. This setup requires strict control over the timing of the sheet metal movement and the stamping process; otherwise, it is easy to produce defective stamped parts or waste material due to excessive spacing. Utility Model Content

[0004] The purpose of this utility model is to provide a terminal block stamping die to solve the problems of defective stamped parts or material waste that easily occur when existing equipment moves stamped plates.

[0005] This utility model is achieved through the following technical solution: a terminal block stamping die, including a frame and an upper die, a lower die, and a hydraulic cylinder mounted on the frame. The upper die is equipped with a toggle part for moving the stamping sheet forward, including a bracket, a torsion spring, a connecting shaft, and a lever. The bracket is mounted on the upper die, and the connecting shaft is rotatably connected to the bracket. A torsion spring is provided at the connection between the connecting shaft and the bracket. The lever is mounted on the connecting shaft and is used to push the stamping sheet. A limit rod is provided on the bracket, and the limit rod cooperates with the connecting shaft. A guide part is installed on the lower die for guiding the toggle part, including a guide plate assembly.

[0006] To better realize this utility model, the connecting shaft further includes a rotating shaft, an adjusting nut, and a screw. The rotating shaft is rotatably connected to the bracket, the screw is slidably connected to the rotating shaft, the adjusting nut is rotatably connected to the rotating shaft, and the adjusting nut is threadedly connected to the screw. The limiting rod cooperates with the rotating shaft, and the lever is fixedly connected to the screw.

[0007] To better realize this utility model, the guide plate assembly further includes a guide base plate, a guide extension plate, and locking screws. The guide extension plate is slidably connected to the guide base plate, and the locking screws are respectively connected to the guide extension plate and the guide base plate to lock the guide extension plate and the guide base plate relative to each other.

[0008] To better realize this utility model, the limiting rod is further threadedly connected to the bracket.

[0009] To better realize this utility model, the frame is further provided with a locking part, which includes a locking rod and a spring. The spring is sleeved on the locking rod, the locking rod is installed on the frame, and the locking rod cooperates with the stamping plate.

[0010] To better realize this utility model, the upper mold further includes an upper outer mold, a pin, and an upper inner mold. The upper inner mold is installed on the upper outer mold, and the pin is inserted into the upper outer mold and the upper inner mold to lock them together. The lower mold includes a lower outer mold, a lower inner mold, and a pin. The lower inner mold is installed on the lower outer mold, and the pin is inserted into the lower outer mold and the lower inner mold to lock them together.

[0011] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0012] (1) By setting up a toggle part, the toggle part will push the stamping plate one unit in advance each time the upper mold goes down to stamp, so that the stamped area moves and a new stamping area is provided for the mold to stamp; there is no need to set up an additional power to drive the stamping plate to move, and the movement of the stamping plate and the movement of the mold are coordinated, making the process connection closer; avoiding the conflict between the stamping command and the movement command of the stamping plate, thereby avoiding the situation of stamped parts being incomplete or materials being wasted;

[0013] (2) By setting a rotating shaft, a limiting rod, and a guide plate assembly, this utility model enables the toggle rod to move the stamped plate with different specifications of terminals, thereby improving its applicability;

[0014] (3) By setting a locking part, this utility model prevents the stamped plate from moving abnormally after stamping, which would prevent the lever from being inserted into the preset position, thus further improving the stability of the equipment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a frontal view of the overall structure of this utility model.

[0017] Figure 3 This is a frontal sectional view of the overall structure of this utility model.

[0018] Figure 4 This is a schematic diagram of the actuating and guiding parts.

[0019] Figure 5 This is a schematic diagram of the actuating mechanism.

[0020] Figure 6 for Figure 4 Enlarged view of the local structure at point A in the middle.

[0021] Figure 7 This is a schematic diagram of a lever that moves a stamped sheet metal.

[0022] Wherein: 2-Stamping sheet; 101-Frame; 102-Lower outer mold; 103-Upper outer mold; 104-Bracket; 105-Hydraulic cylinder; 106-Lever; 107-Spring; 108-Guide extension plate; 109-Pin; 110-Upper inner mold; 111-Lower inner mold; 112-Guide base plate; 113-Locking screw; 114-Screw; 115-Torsion spring; 116-Shaft; 117-Adjusting nut; 118-Locking rod; 119-Limit rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Example 1:

[0026] This embodiment provides a terminal block stamping die, specifically as follows: Figures 1-3 , Figure 7As shown, the assembly includes a frame 101 and an upper mold, a lower mold, and a hydraulic cylinder 105 mounted on the frame 101. The hydraulic cylinder 105 is used to drive the upper mold closer to or further away from the lower mold. The upper mold is equipped with a toggle mechanism for moving the stamped sheet metal 2. This mechanism includes a bracket 104, a torsion spring 115, a connecting shaft, and a lever 106. The bracket 104 is fixedly connected to the upper mold, and the connecting shaft is rotatably connected to the bracket 104. A torsion spring 115 is provided at the connection between the connecting shaft and the bracket 104. The lever 106 is mounted on the connecting shaft and is used to push the stamped sheet metal 2. A limit rod 119 is provided on the bracket 104. The limit rod 119 cooperates with the connecting shaft to determine the initial position of the lever 106 and prevent the lever 106 from jittering during reset. The lower mold is equipped with a guide mechanism for guiding the toggle mechanism, including a guide plate assembly.

[0027] During operation, the hydraulic cylinder 105 is activated, causing the upper die to press down. Simultaneously, the actuating part moves synchronously with the upper die. At this point, the actuating rod 106 inserts into the hole already formed in the stamped sheet 2. Then, the actuating rod 106 contacts the guide plate assembly. Since the angle between the guide plate assembly and the actuating rod 106 is obtuse, the end of the actuating rod 106 begins to slide on the surface of the guide plate assembly during the pressing down of the upper die. At this time, the actuating rod 106 begins to rotate clockwise (towards...). Figure 2 (Taking a specific angle as an example), the torsion spring 115 begins to deform, pushing the stamped sheet 2 laterally when the lever 106 rotates, until the lever 106 slides to the end of the guide plate assembly. At this point, the upper mold continues to press down, and the lever 106 slides out of the guide plate assembly. However, due to the end support limit of the guide plate assembly, the lever 106 begins to press down but does not rotate, meaning the stamped sheet 2 does not move laterally. Then, the upper mold contacts the stamped sheet 2 and cooperates with the lower mold to stamp the stamped sheet 2. After that, the hydraulic cylinder 105 drives the upper mold to move upward and reset, and the lever 106 moves upward synchronously until the lever 106 exits the hole on the stamped sheet 2. At the same time, the torsion spring 115 also drives the lever 106 to rotate in the opposite direction until the limit rod 119 abuts the connecting shaft. At this point, the lever 106 cannot continue to rotate, and the lever 106 will not shake repeatedly.

[0028] Through the above process, each time the upper mold moves down to perform stamping, the actuating part will push the stamping plate 2 one unit in advance, so that the already stamped area moves and a new stamping area is provided for the mold to stamp; there is no need to set an external power to drive the stamping plate 2, and the movement of the stamping plate 2 and the movement of the mold are coordinated, making the process connection closer; reducing the occurrence of conflict between the stamping command and the movement command of the stamping plate 2.

[0029] Example 2:

[0030] This embodiment further extends the above embodiment, specifically as follows: Figures 4-6 As shown, the connecting shaft includes a rotating shaft 116, an adjusting nut 117, and a screw 114. The rotating shaft 116 is rotatably connected to the bracket 104, the screw 114 is slidably connected to the rotating shaft 116, the adjusting nut 117 is rotatably connected to the rotating shaft 116, and the adjusting nut 117 is threadedly connected to the screw 114. The limiting rod 119 cooperates with the rotating shaft 116, and the lever 106 is fixedly connected to the screw 114.

[0031] Since the shape of the terminals stamped in each batch is different, the holes produced on the stamped plate 2 are also different. In order to enable the lever 106 to smoothly push the stamped plate 2 forward, it is necessary to adjust the axial position of the lever 106. By manually rotating the adjusting nut 117, the adjusting nut 117 drives the screw 114 to move axially on the rotating shaft 116, thereby driving the lever 106 to move, ensuring that the lever 106 can be smoothly inserted into the stamped hole on the stamped plate 2 when it moves downward.

[0032] Furthermore, the guide plate assembly includes a guide base plate 112, a guide extension plate 108, and a locking screw 113. The guide extension plate 108 is slidably connected to the guide base plate 112, and the locking screw 113 is connected to the guide extension plate 108 and the guide base plate 112 respectively, so as to lock the guide extension plate 108 and the guide base plate 112 relative to each other.

[0033] By loosening the locking screw 113, the guide extension plate 108 can slide relative to the guide base plate 112, thereby adjusting the length of the entire guide plate assembly. After the length adjustment is completed, the locking screw 113 is tightened. At this time, the guide extension plate 108 can no longer slide on the guide base plate 112, and the length of the guide plate assembly will remain unchanged. By arbitrarily adjusting the length of the guide plate assembly, the distance that the lever 106 pushes the stamping plate 2 to move can be changed, so as to perform stamping operations on terminals of different specifications.

[0034] Furthermore, the limiting rod 119 is threadedly connected to the bracket 104. By manually rotating the limiting rod 119, its relative position on the bracket 104 changes. Since the lever 106 is always pressed against the limiting rod 119 under the action of the torsion spring 115, when the limiting rod 119 moves, the rotating shaft 116 will change its rotation angle, that is, the lever 106 will change its rotation angle. By changing the rotation angle of the lever 106, in conjunction with the axial movement of the lever 106, the lever 106 can better find the insertion position on the stamped sheet 2.

[0035] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0036] Example 3:

[0037] This embodiment is a further extension of the above embodiment, specifically as shown in Figure 2, the stamped sheet metal. Figure 7 As shown, the frame 101 is also provided with a locking part, which includes a locking rod 118 and a spring 107. The spring 107 is sleeved on the locking rod 118, and the locking rod 118 is installed on the frame 101. The locking rod 118 cooperates with the stamping plate 2.

[0038] When the stamping plate 2 is pushed, the force of the lateral movement of the stamping plate 2 presses on the inclined surface at the end of the locking rod 118. At this time, the adjusting nut 117 is compressed, the locking rod 118 retracts, and the stamping plate 2 moves laterally smoothly. After the lateral movement of the stamping plate 2 is completed, the locking rod 118 is pressed against the new stamping hole position again under the elastic force of the adjusting nut 117, and the stamping plate 2 is locked again to prevent the stamping plate 2 from moving abnormally after stamping, which would prevent the lever 106 from being inserted into the preset position and improve the stability of the equipment.

[0039] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0040] Example 4:

[0041] This embodiment further extends the above embodiment, specifically as follows: Figures 1-3 As shown, the upper mold includes an upper outer mold 103, a pin 109, and an upper inner mold 110. The upper inner mold 110 is mounted on the upper outer mold 103, and the pin 109 is inserted into the upper outer mold 103 and the upper inner mold 110 to lock them together. The lower mold includes a lower outer mold 102, a lower inner mold 111, and a pin 109. The lower inner mold 111 is mounted on the lower outer mold 102, and the pin 109 is inserted into the lower outer mold 102 and the lower inner mold 111 to lock them together. This split design allows both the upper inner mold 110 and the lower inner mold 111 to be replaced, enabling the processing of different wiring terminals.

[0042] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0043] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A terminal block stamping die, comprising a frame (101) and an upper die, a lower die, and a hydraulic cylinder (105) mounted on the frame (101), characterized in that: The upper mold is equipped with a toggle part for moving the stamping sheet (2). The toggle part includes a bracket (104), a torsion spring (115), a connecting shaft, and a lever (106). The bracket (104) is mounted on the upper mold. The connecting shaft is rotatably connected to the bracket (104). A torsion spring (115) is provided at the connection between the connecting shaft and the bracket (104). The lever (106) is mounted on the connecting shaft and is used to push the stamping sheet (2). A limit rod (119) is provided on the bracket (104). The limit rod (119) cooperates with the connecting shaft. The lower mold is equipped with a guide part for guiding the actuating part, including a guide plate assembly; The connecting shaft includes a rotating shaft (116), an adjusting nut (117), and a screw (114). The rotating shaft (116) is rotatably connected to the bracket (104), the screw (114) is slidably connected to the rotating shaft (116), the adjusting nut (117) is rotatably connected to the rotating shaft (116), and the adjusting nut (117) is threadedly connected to the screw (114). The limiting rod (119) cooperates with the rotating shaft (116), and the lever (106) is fixedly connected to the screw (114). The guide plate assembly includes a guide base plate (112), a guide extension plate (108), and a locking screw (113). The guide extension plate (108) is slidably connected to the guide base plate (112), and the locking screw (113) is connected to the guide extension plate (108) and the guide base plate (112) respectively, so as to lock the guide extension plate (108) and the guide base plate (112) relative to each other.

2. The terminal block stamping die according to claim 1, characterized in that: The limiting rod (119) is threadedly connected to the bracket (104).

3. The terminal block stamping die according to claim 1, characterized in that: The frame (101) is also provided with a locking part, which includes a locking rod (118) and a spring (107). The spring (107) is sleeved on the locking rod (118), and the locking rod (118) is installed on the frame (101). The locking rod (118) cooperates with the stamping plate (2).

4. A terminal block stamping die according to any one of claims 1-3, characterized in that: The upper mold includes an upper outer mold (103), a pin (109), and an upper inner mold (110). The upper inner mold (110) is mounted on the upper outer mold (103), and the pin (109) is inserted into the upper outer mold (103) and the upper inner mold (110) to lock them together. The lower mold includes a lower outer mold (102), a lower inner mold (111), and a pin (109). The lower inner mold (111) is mounted on the lower outer mold (102), and the pin (109) is inserted into the lower outer mold (102) and the lower inner mold (111) to lock them together.

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