Connecting line terminal distance changing mechanism

Abstract

The utility model relates to the technical field of connecting line assembly, in particular to a connecting line terminal pitch changing mechanism which comprises a guide rail used for conveying terminals and a forming seat located above the guide rail, and the forming seat is provided with a pitch changing plate fixed in the middle of the forming seat and pressing blocks located on the two sides of the pitch changing plate. The bottom end of the variable-pitch plate extends out of a forming part; the pitch changing mechanism is further provided with an elastic piece for driving the pressing block to downwards stretch out of the bottom face of the forming base. The pitch changing mechanism is further provided with a lifting assembly for driving the forming base to reciprocate. The guide rail is provided with a through hole located below the forming base, a limiting block is arranged in the through hole, and the pitch changing mechanism is further provided with a driving assembly for driving the limiting block to slide in a reciprocating mode in the vertical direction. According to the pitch changing mechanism, the pitch changing process can be automatically carried out on the distance between the two supporting feet of each terminal, the mechanism design layout is reasonable, and pitch changing operation can be rapidly carried out on all the terminals on the guide rail, so that the working efficiency is improved, the problem that the working efficiency is low in the past is solved, and the machining quality of products is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of connecting wire assembly, in particular to a connecting wire terminal distance changing mechanism. Background Art

[0002] See also Figure 1 , a schematic diagram of the structure of an existing connecting wire terminal, the terminal 1 is provided with a plurality of legs 11 arranged at intervals, and the plurality of legs 11 are fixedly connected by a connecting portion 12. In order to meet the assembly requirements of the connecting wire, it is necessary to adjust the distance between the two legs 11. Before the pitch is changed, the connecting portion 12 is in a horizontal belt state. After the pitch is changed, the connecting portion 12 is a groove approximately in the shape of a U. By performing a process of concave packaging on the connecting portion 12, the length of the connecting portion is shortened to achieve the pitch change. In addition, each leg 11 is provided with a stepping hole 13, which is mainly used to cooperate with the stepping conveying equipment for automatic material transfer. At present, the pitch change of the terminal is mainly carried out by a molding mold, and its processing speed is slow. Only a single terminal can be molded at a time, and manual loading and unloading is required, which has the problem of low work efficiency. Utility Model Content

[0003] The utility model aims to provide a connecting wire terminal pitch changing mechanism for the shortcomings of the prior art, and the use of the mechanism can solve the problem of low working efficiency in the past.

[0004] The purpose of the utility model is achieved through the following technical solutions: the application provides a connecting wire terminal pitch-changing mechanism, comprising a guide rail for conveying terminals and a forming seat located above the guide rail, the forming seat is provided with a pitch-changing plate fixed in the middle of the forming seat and clamping blocks located on both sides of the pitch-changing plate; the bottom end of the pitch-changing plate extends downward to form a forming portion that passes through the bottom surface of the forming seat; each clamping block can be slidably installed in the forming seat, and the pitch-changing mechanism is also provided with an elastic member that drives the clamping block to extend downward from the bottom surface of the forming seat; the pitch-changing mechanism is also provided with a lifting component that drives the forming seat to reciprocate in the vertical direction; the guide rail is provided with a through hole located below the forming seat, a limit block that can slide in the vertical direction is provided in the through hole, and the pitch-changing mechanism is also provided with a driving component that drives the limit block to slide reciprocally in the vertical direction.

[0005] Among them, a blind hole is opened inside the forming seat for the clamping block to be placed, the depth of the blind hole is greater than the height of the clamping block, the inner bottom surface of the blind hole is opened with a mounting hole that penetrates to the bottom surface of the forming seat, the area of ​​the mounting hole is smaller than the area of ​​the blind hole, and the clamping block extends downward to form a holding portion that passes through the mounting hole, and at least one positioning hole is opened on the bottom surface of the holding portion.

[0006] Among them, an upper cover is fixedly installed on the top surface of the forming seat, and two first circular holes arranged at intervals are opened on the bottom surface of the upper cover. A second circular hole is opened on the top surface of each clamping block. The elastic member is a spring, one end of the spring is placed in the first circular hole, and the other end of the spring is placed in the second circular hole.

[0007] Among them, the lifting assembly includes a lifting cylinder, a connecting rod and an articulated seat. One end of the connecting rod is hinged to the telescopic rod of the lifting cylinder, and the other end of the connecting rod is connected to the forming seat. The articulated seat is hinged to the middle part of the connecting rod, and the articulated seat is located between the lifting cylinder and the forming seat.

[0008] A vertically arranged slide rail is fixedly installed on the side of the guide rail, and the slide rail is provided with a sliding block which is slidably matched with the slide rail, and the sliding block is fixedly connected to the forming seat.

[0009] The driving assembly includes a guide block and a horizontally placed translation cylinder. The guide block is fixedly connected to the output shaft of the translation cylinder, and the guide block is arranged below the guide rail.

[0010] Among them, a groove is provided on the top surface of the guide block, a guide groove is provided on the groove wall, and the guide groove is provided with a first guide section, a guide section and a second guide section which are connected side by side in the horizontal direction, and the position of the first guide section in the height direction is higher than the position of the second guide section in the height direction; the bottom end of the limit block is inserted into the groove, and a transfer hole is provided at the bottom end of the limit block, a rotating shaft is passed through the transfer hole, and the rotating shaft passes through the guide groove and is inserted into the transfer hole.

[0011] Among them, the top end surface of each limiting block is plugged with at least one positioning pin and a forming groove located on the side of the positioning pin.

[0012] The utility model discloses a distance-changing mechanism for connecting wire terminals, which has the following beneficial effects: the distance-changing mechanism of the present application can automatically change the distance between the two legs of the terminal, the mechanism design and layout are reasonable, and the distance-changing operation of each terminal on the guide rail can be quickly performed, thereby improving work efficiency, solving the problem of low work efficiency in the past, and ensuring the processing quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the utility model. A person skilled in the art can obtain other drawings based on the following drawings without creative work.

[0014] Figure 1 It is a schematic diagram of the structure of the terminal in the prior art.

[0015] Figure 2 Schematic diagram of the structure of the plug-in mechanism in the embodiment.

[0016] Figure 3Schematic diagram of the structure of the forming seat in the embodiment.

[0017] Figure 4 It is an exploded view of the forming seat in the embodiment.

[0018] Figure 5 It is a cross-sectional view of the forming seat in the embodiment.

[0019] Figure 6 Schematic diagram of the structure of the guide rail in the embodiment.

[0020] Figure 7 for Figure 6 Enlarged view of point A in the middle.

[0021] Figure 8 Schematic diagram of the structure of the guide block in this embodiment.

[0022] Figure markings: terminal 1, support foot 11, connecting part 12, stepping hole 13, lifting cylinder 21, connecting rod 22, hinged seat 23, slide rail 24, slider 25, forming seat 3, upper cover 30, first circular hole 301, variable pitch plate 31, forming part 311, clamping block 32, positioning hole 320, second circular hole 321, holding part 322, blind hole 33, mounting hole 34, guide rail 4, translation cylinder 51, guide block 52, groove 521, guide groove 522, limit block 53, positioning pin 531, forming groove 532, adapter hole 533. DETAILED DESCRIPTION

[0023] The utility model is further described in conjunction with the following embodiments.

[0024] A specific implementation of a connecting wire terminal distance changing mechanism of the utility model is as follows Figure 2 As shown, the distance changing mechanism includes a guide rail 4 for conveying terminals and a forming seat 3 located above the guide rail 4 .

[0025] Combination Figures 3 to 5 The forming seat 3 is provided with a pitch-changing plate 31 fixed in the middle of the forming seat 3 and pressing blocks 32 located on both sides of the pitch-changing plate 31. The bottom end of the pitch-changing plate 31 extends downward to form a forming portion 311 passing through the bottom surface of the forming seat 3. It should be noted that the pitch-changing plate 31 is fixed relative to the forming seat 3, and the pressing blocks 32 are slidable relative to the forming seat 3.

[0026] In this embodiment, each clamping block 32 can be slidably installed in the forming seat 3. Optionally, a blind hole 33 is provided inside the forming seat 3 for the clamping block 32 to be placed. The depth of the blind hole 33 is greater than the height of the clamping block 32, so that the clamping block 32 can slide back and forth in the vertical direction in the blind hole 33. The inner bottom surface of the blind hole 33 is provided with a mounting hole 34 that penetrates to the bottom surface of the forming seat 3. The area of ​​the mounting hole 34 is smaller than the area of ​​the blind hole 33. The clamping block 32 extends downward to form a holding portion 322 that passes through the mounting hole 34, so that the clamping block 32 cannot pass through the bottom surface of the forming seat 3. In addition, at least one positioning hole 320 is provided on the bottom surface of the holding portion 322, and the positioning hole 320 is mainly used in conjunction with the positioning pin 531 on the limit block 53 located in the guide rail 4.

[0027] In order to enable the pressing block 32 to automatically extend out of the bottom surface of the forming seat 3, the variable pitch mechanism is further provided with an elastic member that drives the pressing block 32 to extend downward out of the bottom surface of the forming seat 3. Optionally, the elastic member is a spring (not shown). Specifically, the top surface of the forming seat 3 is fixedly mounted with an upper cover 30, the bottom surface of the upper cover 30 is provided with two first circular holes 301 arranged at intervals, the top surface of each pressing block 32 is provided with a second circular hole 321, the elastic member is a spring, one end of the spring is placed in the first circular hole 301, and the other end of the spring is placed in the second circular hole 321.

[0028] In order to realize automatic molding, the pitch-changing mechanism is also provided with a lifting assembly that drives the molding seat 3 to reciprocate in the vertical direction. The lifting assembly includes a lifting cylinder 21, a connecting rod 22 and an articulated seat 23. One end of the connecting rod 22 is hinged to the telescopic rod of the lifting cylinder 21, and the other end of the connecting rod 22 is connected to the molding seat 3. The articulated seat 23 is hinged to the middle of the connecting rod 22, and the articulated seat 23 is located between the lifting cylinder 21 and the molding seat 3. In order to guide the molding seat 3 to slide only in the vertical direction, the guide rail 4 is fixedly installed with a vertically arranged slide rail 24, and the slide rail 24 is provided with a slider 25 that slides with it, and the slider 25 is fixed to the molding seat 3.

[0029] Combination Figures 6 to 8The guide rail 4 is provided with a through hole located below the forming seat 3, and a limit block 53 that can slide in the vertical direction is provided in the through hole. The pitch-changing mechanism is also provided with a driving assembly that drives the limit block 53 to slide back and forth in the vertical direction. Optionally, the driving assembly includes a guide block 52 and a horizontally placed translation cylinder 51, the guide block 52 is fixedly connected to the output shaft of the translation cylinder 51, and the guide block 52 is arranged below the guide rail 4. A groove 521 is provided on the top surface of the guide block 52, and a guide groove 522 is provided on the groove wall of the groove 521. The guide groove 522 is provided with a first guide section, a guide section, and a second guide section that are connected in sequence in the horizontal direction. The position of the first guide section in the height direction is higher than the position of the second guide section in the height direction. The bottom end of the limit block 53 is inserted into the groove 521, and a transfer hole 533 is provided at the bottom end of the limit block 53. A rotating shaft (not shown) is passed through the transfer hole 533, and the rotating shaft passes through the guide groove 522 and is inserted into the transfer hole 533.

[0030] In this embodiment, the top end surface of each limit block 53 is plugged with at least one positioning pin 531 and a forming groove 532 located on the side of the positioning pin 531. The forming groove 532 cooperates with the variable pitch plate 31 to form a concave bag or groove at the connecting part of the terminal. The positioning pin 531 is mainly used to pass through the stepping hole of the terminal and cooperate with the positioning hole 320 of the clamping block 32 to limit the terminal.

[0031] The working process of a connecting wire terminal pitch changing mechanism of the utility model is as follows: before processing, the rotating shaft at the bottom of the limit block 53 is located in the second guide section of the guide groove 522. During operation, the telescopic rod of the translation cylinder 51 extends outward, so that the guide block 52 slides in the horizontal direction, and the rotating shaft at the bottom of the limit block 53 slides along the guide section to the second guide section, so that the limit block 53 slides upward in the vertical direction, and the positioning pin 531 of the limit block 53 is inserted into the stepping hole of the terminal on the guide rail 4, and the forming groove 532 of the limit block 53 is aligned with the connecting part of the terminal, and the top surface of the limit block 53 is flush with the guide rail 4. Then the lifting cylinder 21 is started, and the telescopic rod of the lifting cylinder 21 drives the connecting rod 22 to rotate relative to the hinge seat 23, thereby driving the forming seat 3 to rotate, and under the guidance of the guide rail 4 and the slider 25, the forming seat 3 moves vertically in the height direction. When the forming seat 3 moves downward, the clamping block 32 of the forming seat 3 first contacts the terminal, and clamps the terminal with the pressure provided by the elastic member. The forming seat 3 continues to move downward, and the limit block 53 of the guide rail 4 will press against the clamping block 32, driving the clamping block 32 upward and retracting toward the inside of the forming seat 3. The elastic member is in a compressed state. When the clamping block 32 retracts to the bottom surface of the clamping block 32 and the bottom surface of the forming part 311 of the pitch-changing plate 31 are flush, the forming seat 3 continues to move downward, so that the forming part 311 of the pitch-changing plate 31 moves downward and punches the connecting plate of the terminal. Under the cooperation of the forming part 311 and the groove, the connecting part of the terminal is made into a U-shaped groove structure, completing the pitch-changing process of the terminal. After the pitch-changing process is completed, each component returns to its position, and the elastic member in the compressed state drives the clamping block 32 to extend outward.

[0032] The variable distance mechanism of this embodiment can automatically change the distance between the two legs of the terminal. The mechanism is reasonably designed and laid out, and can quickly change the distance of each terminal on the guide rail 4, thereby improving work efficiency, solving the problem of low work efficiency in the past, and ensuring the processing quality of the product.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A connecting wire terminal pitch changing mechanism, characterized in that: It comprises a guide rail for conveying terminals and a forming seat located above the guide rail, wherein the forming seat is provided with a pitch-changing plate fixed in the middle of the forming seat and pressing blocks located on both sides of the pitch-changing plate; The bottom end of the pitch-changing plate extends downward to form a forming portion that passes through the bottom surface of the forming seat; Each of the pressing blocks can be slidably installed in the forming seat, and the distance changing mechanism is also provided with an elastic member for driving the pressing block to extend downward out of the bottom surface of the forming seat; The pitch-changing mechanism is also provided with a lifting assembly for driving the forming seat to reciprocate in the vertical direction; The guide rail is provided with a through hole below the forming seat, a limit block which can slide in the vertical direction is provided in the through hole, and the variable distance mechanism is further provided with a driving component which drives the limit block to slide back and forth in the vertical direction.

2. The connecting wire terminal pitch changing mechanism according to claim 1, characterized in that: A blind hole is provided inside the forming seat for the clamping block to be placed therein, the depth of the blind hole is greater than the height of the clamping block, a mounting hole is provided on the inner bottom surface of the blind hole and passes through the bottom surface of the forming seat, the area of ​​the mounting hole is smaller than the area of ​​the blind hole, the clamping block extends downward to form a holding portion that passes through the mounting hole, and at least one positioning hole is provided on the bottom surface of the holding portion.

3. The connecting wire terminal pitch changing mechanism according to claim 2, characterized in that: An upper cover is fixedly installed on the top surface of the forming seat, and two first circular holes arranged at intervals are opened on the bottom surface of the upper cover. A second circular hole is opened on the top surface of each clamping block. The elastic member is a spring, one end of the spring is placed in the first circular hole, and the other end of the spring is placed in the second circular hole.

4. The connecting wire terminal pitch changing mechanism according to claim 1, characterized in that: The lifting assembly includes a lifting cylinder, a connecting rod and an articulated seat, one end of the connecting rod is hinged to the telescopic rod of the lifting cylinder, the other end of the connecting rod is connected to the forming seat, the articulated seat is hinged to the middle part of the connecting rod, and the articulated seat is located between the lifting cylinder and the forming seat.

5. The connecting wire terminal pitch changing mechanism according to claim 4, characterized in that: A vertically arranged slide rail is fixedly installed on the side of the guide rail, and the slide rail is provided with a sliding block which is slidably matched with the slide rail, and the sliding block is fixedly connected to the forming seat.

6. The connecting wire terminal pitch changing mechanism according to claim 1, characterized in that: The driving assembly comprises a guide block and a horizontally placed translation cylinder, wherein the guide block is fixedly connected to the output shaft of the translation cylinder, and the guide block is arranged below the guide rail.

7. The connecting wire terminal pitch changing mechanism according to claim 6, characterized in that: A groove is formed on the top surface of the guide block, a guide groove is formed on the groove wall of the groove, and the guide groove is provided with a first guide section, a guide section and a second guide section which are connected in sequence side by side in a horizontal direction, and the position of the first guide section in the height direction is higher than the position of the second guide section in the height direction; The bottom end of the limit block is inserted into the groove, and a transfer hole is formed at the bottom end of the limit block. A rotating shaft is passed through the transfer hole, and the rotating shaft passes through the guide groove and is inserted into the transfer hole.

8. The connecting wire terminal pitch changing mechanism according to claim 6, characterized in that: The top end surface of each of the limit blocks is plugged with at least one positioning pin and a forming groove located on the side of the positioning pin.

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