CN223680559U - Quick die replacement structure of terminal crimping machine - Google Patents

Abstract

This utility model discloses a quick-change mold structure for a terminal crimping machine. The structure includes a press body with an upper mold base and a lower mold base fixed on it. The upper and lower mold bases are connected to the upper and lower mold bases respectively via a quick-release assembly. The quick-release assembly includes a guide plate with a sliding groove containing two sliding clamping blocks. Screws with opposite directions of rotation and connected are rotatably mounted on the end blocks at both ends of the guide plate, and the clamping blocks are threadedly engaged with the screws. A fine-tuning cylinder and a positioning component are also included. Rotating the adjusting wheel drives the screws, allowing the clamping blocks to slide and quickly clamp the mold. The fine-tuning cylinder, in conjunction with the positioning groove, allows for precise fine-tuning of the mold position. The positioning component prevents the screws from malfunctioning. Furthermore, the dovetail groove and inclined surface enhance connection stability, and the guide post and guide sleeve ensure motion accuracy. This structure enables quick mold change, improves production efficiency and crimping accuracy, and has advantages such as simple operation and high stability.

Description

Quick die replacement structure of terminal crimping machine

Technical Field

The utility model relates to the technical field of connection processing equipment, in particular to a die quick replacement structure of a terminal crimping machine.

Background

The terminal crimping machine die is a key component for realizing reliable connection of terminals and wires, and generally consists of an upper die block and a lower die block which are arranged on an upper die seat and a lower die seat of a punching machine, wherein the upper die block and the lower die block are fixed through a fast-assembling component, and the shape and the structure are designed according to crimping requirements. When the wire winding device works, the upper module moves downwards under the drive of the punching machine power mechanism and presses in cooperation with the lower module, so that the terminal is plastically deformed to wrap the wire. The type is various, and the electronic appliance, the automobile wire harness terminal mould and the like are used according to the application field, and the opening type, the closed type and the piercing type terminal mould and the like are used according to the terminal shape and the crimping process so as to meet different crimping requirements.

In the prior art, the wire terminal crimping machine with the publication number of CN216929137U is convenient for replacing a crimping die, and is provided with a frame, wherein a motor is arranged at the top of the frame through a bolt, an upper supporting plate is fixedly connected to the top of a connecting shaft, a telescopic cylinder is arranged at the top edge of the frame through a bolt, the wire terminal crimping machine comprises a supporting plate and a fixing cylinder, the connecting shaft is mutually connected with a transmission shaft through a belt pulley mechanism, the supporting plate is fixedly arranged at the top of the connecting shaft below the connecting shaft, a pressing die is fixedly arranged on the upper end surface of the supporting plate, the fixing cylinder is fixed on the inner wall of the frame, and a limiting rod is movably connected to the end of the fixing cylinder. This electric wire terminal press-connection machine convenient to change crimping mould adopts pivoted mode to the electric wire crimping in-process, adjusts different crimping moulds to the processing region, and then can realize the crimping operation of different model or specification electric wires through same press-connection machine, when having reduced the cost, has satisfied the random conversion of different crimping moulds.

However, the prior art still has great disadvantages, such as:

The conventional terminal crimping machine die may be mounted and fixed by means of bolt fastening or the like. When changing the mould each time, operating personnel need use the instrument to unscrew one by one or screw up a plurality of bolts, and this process consuming time is longer, especially in the production scene that needs frequent change mould, can seriously influence production efficiency.

Disclosure of utility model

The utility model aims to provide a quick die replacement structure of a terminal crimping machine, which aims to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

The quick die replacing structure of the terminal crimping machine comprises a punching machine body, wherein an upper die holder and a lower die holder are fixedly arranged on the punching machine body, an upper die block is fixedly arranged on the upper die holder through a quick assembly, and a lower die block is fixedly arranged on the lower die holder through the quick assembly;

The quick assembly comprises a guide plate, wherein a chute is formed in the guide plate, and two clamping blocks are slidably arranged in the chute;

The two ends of the guide plate are fixedly provided with end blocks, the end blocks are rotatably provided with screws, the screw directions of the screws on the two end blocks are opposite, the two end blocks are fixedly connected with each other, and the two clamping blocks are respectively matched with the screws with opposite screw directions through threads.

Preferably, the fast-assembling subassembly still includes the fine setting section of thick bamboo that rotates the setting on the grip block, the fine setting section of thick bamboo passes through screw thread and screw rod cooperation, set up a plurality of constant head tanks on the fine setting section of thick bamboo, be provided with detachable bolt on the grip block, the bolt cooperates with one of them constant head tank.

Preferably, the quick assembly further comprises a positioning assembly, wherein the positioning assembly comprises a positioning wheel fixedly arranged at one end of the screw, and a plurality of positioning strips are fixedly arranged on the positioning wheel;

The end block is fixedly provided with a sliding column, one end of the sliding column is fixedly provided with a positioning plate, the sliding column is slidably provided with a sliding plate, a spring is arranged between the sliding plate and the positioning plate, the positioning plate is fixedly provided with a positioning block, and the positioning block is matched with the positioning wheel.

Preferably, an adjusting wheel is fixedly arranged on the screw rod far away from one end of the positioning wheel.

Preferably, the adjusting wheel is provided with a plurality of through holes.

Preferably, the upper module and the lower module are provided with dovetail grooves, and the clamping blocks are provided with inclined planes matched with the dovetail grooves.

Preferably, the punching machine body is fixedly provided with a plurality of guide posts, the upper die holder is fixedly provided with a plurality of guide sleeves, and the guide posts are matched with the guide sleeves.

Compared with the prior art, the utility model has the beneficial effects that:

1. through the design of fast-assembling subassembly for can realize quick connect and separation between last module and the upper die base, lower module and the die holder. Compared with the traditional die fixing mode, such as bolt tightening, an operator can quickly loosen or clamp the die block only by rotating the adjusting wheel, so that the die replacement time is greatly shortened, and the production efficiency is improved.

2. When the position of the die is required to be finely adjusted, the fine adjustment cylinder is rotated after the bolt is unscrewed, and the fine adjustment cylinder drives the clamping block to generate micro displacement through the threaded fit of the clamping block and the screw rod, so that the position of the die is accurately adjusted. The fine adjustment function can meet production scenes with high requirements on the precision of the compression joint positions, and the consistency and the yield of products are improved.

3. The locating block in the locating component is matched with the locating wheel, and the rotating position of the screw rod can be locked. When the die is in normal operation, the screw is prevented from rotating due to accidental touching of the adjusting wheel and the like, so that the stability of the clamping state of the die is ensured, and the quality problem and the potential safety hazard caused by loosening of the die are avoided.

Drawings

FIG. 1 is a schematic perspective view of the whole device of the present utility model;

FIG. 2 is a schematic diagram showing the three-dimensional structures of an upper die holder and a lower die holder of the utility model;

FIG. 3 is a schematic view of another perspective view of the upper and lower die holders of the present utility model;

FIG. 4 is a schematic perspective view of a lower die holder and a quick assembly according to the present utility model;

FIG. 5 is a cross-sectional perspective view of the lower die holder and the quick assembly of the present utility model;

FIG. 6 is a schematic perspective view of a positioning assembly according to the present utility model;

FIG. 7 is a cross-sectional view of a positioning assembly of the present utility model.

1, A punching machine body, 2, an upper die holder, 3, a lower die holder, 4, an upper die, 5, a lower die, 6, a quick assembly component, 61, a guide plate, 611, a chute, 62, a clamping block, 621, a fine adjustment cylinder, 6211, a positioning groove, 622, a bolt, 63, an end block, 631, a screw, 6311, an adjusting wheel, 63111, a through hole, 6312, a positioning wheel, 63121, a positioning strip, 632, a sliding column, 6321, a positioning plate, 6322, a sliding plate, 6323, a spring, 6324, a positioning block, 7, a dovetail groove, 8, an inclined plane, 9, a guide pillar, 10 and a guide sleeve.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-7, the present utility model provides a technical solution:

The quick die change structure of the terminal crimping machine mainly comprises a punching machine body 1, a die quick assembly component 6 matched with the punching machine body, and the like. The connection relationship and the working principle between the components will be described in detail below.

The press body 1 serves as a basis for the entire apparatus, and its structure may take various forms, and a common mechanical transmission structure is described here as an example. The punching machine body 1 includes a motor, a speed reducer, a crank, a connecting rod, and a slider. The motor is used as a power source and is connected with an input shaft of the speed reducer through a motor shaft, so that initial power is provided for the whole stamping process. After the motor is started, the motor shaft rotating at high speed drives the gear set in the speed reducer to operate, the speed reducer converts the high rotating speed of the motor into low rotating speed according to the transmission ratio of the speed reducer, and correspondingly increases torque and outputs the torque to a crank connected with the output shaft of the speed reducer.

The crank is a part with an eccentric structure, one end of the crank is fixedly connected with the output shaft of the speed reducer, and the crank moves circularly under the driving of the output power of the speed reducer. One end of the connecting rod is movably connected with the eccentric part of the crank in a pin shaft mode and the like, and the other end of the connecting rod is movably connected with the sliding block. When the crank moves circularly, the circular motion of the crank is converted into the up-down linear reciprocating motion of the sliding block along the guide rail through the connecting rod, so that the stamping action of the die is realized.

The press body 1 is firmly attached with an upper die holder 2 and a lower die holder 3 by fixing means such as bolts 622. The upper die holder 2 is located at the upper part of the punching machine body 1, the lower die holder 3 is located at the lower part, and the upper die holder and the lower die holder are oppositely arranged and are respectively used for installing the upper die block 4 and the lower die block 5, and are basic components for die installation and fixation.

Quick and stable connection is realized between the upper die holder 2 and the upper die block 4 and between the lower die holder 3 and the lower die block 5 through the quick assembly component 6. The quick assembly 6 is mainly composed of a guide plate 61, a clamping block 62, an end block 63, a screw 631, a fine adjustment cylinder 621, a positioning assembly and the like.

The guide plate 61 is a strip-shaped plate structure, and two ends of the guide plate are respectively and vertically fixedly connected with end blocks 63. A chute 611 is provided in the middle of the guide plate 61 along the length direction thereof. The shape and size of the chute 611 are adapted to the two clamping blocks 62 such that the two clamping blocks 62 can slide smoothly within the chute 611. Each end block 63 is rotatably provided with a screw 631 by means of a rotary connection such as a bearing. The two screws 631 are rotated in opposite directions and are fixedly connected together at opposite ends of the two screws 631 by a coupling or other connecting means, thereby ensuring that the two screws 631 can be rotated simultaneously when one of the screws 631 is rotated.

A fine adjustment cylinder 621 is rotatably provided on each of the holding blocks 62. The inner wall of the fine adjustment cylinder 621 is provided with an internal thread that matches the screw 631 so that the fine adjustment cylinder 621 can be engaged with the screw 631 by the thread. The outer circumferential surface of the fine adjustment cylinder 621 is provided with a plurality of positioning grooves 6211 uniformly formed in the circumferential direction. A detachable bolt 622 is provided on the clamp block 62 at a position corresponding to the positioning groove 6211 of the fine adjustment cylinder 621. When the bolt 622 is tightened and inserted into a certain positioning groove 6211 of the fine adjustment cylinder 621, the position of the fine adjustment cylinder 621 is locked, thereby restricting the position of the clamp block 62 in the slide groove 611, and when the bolt 622 is loosened and removed from the positioning groove 6211, the fine adjustment cylinder 621 is free to rotate.

The positioning assembly is mainly composed of a positioning wheel 6312, a positioning bar 63121, a sliding column 632, a positioning plate 6321, a sliding plate 6322, a spring 6323 and a positioning block 6324. At one end of one screw 631, which is remote from the end connected to the other screw 631, a positioning wheel 6312 is fixedly provided. A plurality of positioning strips 63121 are fixedly arranged on the outer circumferential surface of the positioning wheel 6312 along the circumferential direction. On the end block 63, a sliding column 632 is fixedly provided perpendicular to the surface of the end block 63. One end of the sliding post 632 passes through the sliding plate 6322 and is fixedly connected to the positioning plate 6321. The sliding plate 6322 is slidable on the sliding post 632 in the axial direction of the sliding post 632, and a spring 6323 is provided between the sliding plate 6322 and the positioning plate 6321, the spring 6323 being always in a compressed state.

A positioning block 6324 is fixedly provided on the positioning plate 6321 on a side close to the positioning wheel 6312. The positioning block 6324 is shaped to fit with the positioning bar 63121 on the positioning wheel 6312, when the positioning block 6324 is matched with the positioning bar 63121 on the positioning wheel 6312, the rotation of the screw 631 is limited, when the positioning plate 6321 is pulled away from the positioning wheel 6312 and rotated by a certain angle against the elastic force of the spring 6323, the positioning block 6324 is disengaged from the positioning wheel 6312, and at this time the screw 631 can rotate freely.

An adjustment wheel 6311 is fixedly provided on a screw 631 at an end remote from the positioning wheel 6312. The adjusting wheel 6311 is of a disc-shaped structure, and a plurality of through holes 63111 are uniformly formed in the outer peripheral surface of the adjusting wheel 6311 along the circumferential direction, so that an operator can conveniently insert tools (such as a wrench) into the through holes 63111, rotate the adjusting wheel 6311, and further drive the screw 631 to rotate.

Dovetail grooves 7 are respectively formed in both side surfaces of the upper module 4 and the lower module 5. The dovetail groove 7 has a trapezoidal shape, and the opening direction thereof is related to the mounting direction of the module. In correspondence with this, a slope 8 matching the dovetail groove 7 is provided on the side of the clamp block 62 contacting the module. When the clamping block 62 is driven by the screw 631 to approach the module, the inclined surface 8 on the clamping block 62 is tightly attached to the dovetail groove 7 on the module, so as to clamp the module.

In addition, a plurality of guide posts 9 are vertically and fixedly arranged on the punching machine body 1 along the movement direction of the upper die holder 2. On the upper die holder 2, a plurality of guide sleeves 10 are fixedly arranged corresponding to the positions of the guide posts 9. The matching precision of the guide post 9 and the guide sleeve 10 is higher, the guide post 9 can smoothly slide in the guide sleeve 10, an accurate guiding function is provided for the up-and-down movement of the upper die holder 2 in the stamping process, and the stability and accuracy of the movement of the upper die holder 2 are ensured.

The working principle is that the upper module 4 or the lower module 5 is placed on the corresponding upper die holder 2 or lower die holder 3, so that the dovetail groove 7 on the module is opposite to the clamping block 62 of the fast assembly component 6. The operator rotates the adjustment wheel 6311, which rotates the screw 631. Since the two screws 631 rotate in opposite directions and synchronously, the two clamping blocks 62 are driven to slide relatively in the sliding grooves 611 of the guide plate 61 by the threaded engagement with the fine adjustment cylinder 621. As the clamping blocks 62 approach, the inclined surfaces 8 on the clamping blocks 62 gradually fit the dovetail grooves 7 on the modules until the modules are firmly clamped.

Trimming the position of the mold if the mold is to be mounted, the operator can first unscrew the bolt 622 on the clamping block 62 that mates with the positioning groove 6211 of the trimming cylinder 621. At this time, the fine adjustment cylinder 621 is not restricted by the bolt 622 and can freely rotate. The operator rotates the fine adjustment cylinder 621, and the rotation of the fine adjustment cylinder 621 drives the clamping block 62 to generate micro displacement in the chute 611 due to the threaded fit of the fine adjustment cylinder 621 and the screw 631, so that accurate fine adjustment of the module position is realized. After trimming is completed, bolt 622 is reinserted into the appropriate detent 6211 on trim barrel 621, locking the positions of trim barrel 621 and clamp block 62.

Screw 631 adjustment and locking when a substantial adjustment of screw 631 is desired, such as loosening or further clamping of the mold, an operator may first raise the positioning plate 6321 upward against the force of spring 6323 to move the positioning plate 6321 along the sliding post 632 in a direction away from the positioning wheel 6312. At the same time, the positioning plate 6321 is rotated about the sliding post 632 such that the positioning block 6324 on the positioning plate 6321 is disengaged from the positioning wheel 6312. At this time, the adjusting wheel 6311 is conveniently rotated to drive the screw 631 to rotate. After the adjustment is completed, the positioning plate 6321 is reset, under the action of the elastic force of the spring 6323, the positioning block 6324 on the positioning plate 6321 is matched with the positioning bar 63121 on the positioning wheel 6312 again, and the position of the screw 631 is locked, so that the stability of the quick assembly 6 in the punching process is ensured.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The quick die replacing structure of the terminal crimping machine comprises a punching machine body (1) and is characterized in that an upper die holder (2) and a lower die holder (3) are fixedly arranged on the punching machine body (1), an upper die block (4) is fixedly arranged on the upper die holder (2) through a quick assembly component (6), and a lower die block (5) is fixedly arranged on the lower die holder (3) through the quick assembly component (6);

The quick assembly component (6) comprises a guide plate (61), wherein a chute (611) is formed in the guide plate (61), and two clamping blocks (62) are slidably arranged in the chute (611);

The two ends of the guide plate (61) are fixedly provided with end blocks (63), the end blocks (63) are rotatably provided with screws (631), the rotation directions of the screws (631) on the two end blocks (63) are opposite, the two screws (631) are fixedly connected, and the two clamping blocks (62) are respectively matched with the screws (631) with opposite rotation directions through threads.

2. The quick die change structure of a terminal crimping machine as claimed in claim 1, wherein the quick assembly (6) further comprises a fine adjustment cylinder (621) rotatably arranged on the clamping block (62), the fine adjustment cylinder (621) is matched with the screw (631) through threads, a plurality of positioning grooves (6211) are formed in the fine adjustment cylinder (621), a detachable bolt (622) is arranged on the clamping block (62), and the bolt (622) is matched with one of the positioning grooves (6211).

3. The quick die change structure of a terminal crimping machine as claimed in claim 2, wherein the quick assembly component (6) further comprises a positioning component, the positioning component comprises a positioning wheel (6312) fixedly arranged at one end of a screw (631), and a plurality of positioning strips (63121) are fixedly arranged on the positioning wheel (6312);

The end block (63) is fixedly provided with a sliding column (632), one end of the sliding column (632) is fixedly provided with a positioning plate (6321), the sliding column (632) is slidably provided with a sliding plate (6322), a spring (6323) is arranged between the sliding plate (6322) and the positioning plate (6321), the positioning plate (6321) is fixedly provided with a positioning block (6324), and the positioning block (6324) is matched with the positioning wheel (6312).

4. A quick die change structure for a terminal crimping machine as claimed in claim 3, wherein an adjusting wheel (6311) is fixedly provided on a screw (631) at an end remote from said positioning wheel (6312).

5. The quick die change structure of a terminal crimping machine as claimed in claim 4, wherein the regulating wheel (6311) is provided with a plurality of through holes (63111).

6. The quick die change structure of a terminal crimping machine according to any one of claims 1 to 5, wherein the upper module (4) and the lower module (5) are provided with dovetail grooves (7), and the clamping block (62) is provided with inclined surfaces (8) matched with the dovetail grooves (7).

7. The quick die change structure of a terminal crimping machine according to claim 1, wherein a plurality of guide posts (9) are fixedly arranged on the punching machine body (1), a plurality of guide sleeves (10) are fixedly arranged on the upper die holder (2), and the guide posts (9) are matched with the guide sleeves (10).