CN216529783U - High-efficient light pneumatic four dabber crimping instrument - Google Patents

Abstract

The utility model discloses a high-efficiency portable pneumatic four-mandrel compression joint tool, wherein a compression joint assembly comprises a cover body, the front end of the cover body is a compression joint position, a push block is arranged in the cover body and connected with a power assembly, and the tail end of a clamp handle is arranged in a sliding groove of the push block through a bearing; a clamp shaft is fixedly arranged on the cover body, a movable hole is arranged at the front end of the clamp handle, the clamp shaft is arranged in the movable hole, and the clamp handle can be driven by the push block to rotate around the clamp shaft; one side of the positioning block, which faces the push block, is of an inclined structure, a plurality of longitudinally arranged step surfaces are arranged on the inclined structure, and the other side of the positioning block is movably arranged on a guide post pin and can slide along the guide post pin. The pneumatic compression joint tool is simple in structure, the stroke of the push block and the rotation angle of the clamp handle are changed by utilizing the stair-shaped step surfaces, and the number of the steps and the thickness of the steps of the positioning block can be set according to the use requirement, so that the compression joint depth of a single pneumatic compression joint tool is adjusted, and the number of the blocking positions and the compression joint depth corresponding to each blocking position are adjusted.

Description

High-efficient light pneumatic four dabber crimping instrument

Technical Field

The utility model relates to the technical field of crimping tools, in particular to a high-efficiency and light pneumatic four-mandrel crimping tool.

Background

The electrical connector consists of a fixed end electrical connector, i.e., a female contact (referred to as a socket for short), and a free end electrical connector, i.e., a male contact (referred to as a plug for short). The socket is fixed on the electric part through a square (round) plate (a welding mode is adopted individually), the plug is generally connected with a conducting wire, and the connection of the plug and the socket is realized through a connecting nut. The plug terminal and the lead are fixed by a crimping tool, the round-tube-shaped terminal is placed in a pressing block of the crimping tool, then the lead is placed in the terminal, and the pressing block extrudes a concave point inwards from the round tube of the terminal, so that the plug terminal and the lead are connected together. The terminal of different specifications, the degree of depth that produces the concave point during crimping requires differently, so pneumatic crimping tool is last to be equipped with to keep off a position and adjusts the structure for adjust the crimping degree of depth of briquetting, but current fender position is adjusted the structure and is more complicated, keeps off the position and adjusts harder.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides an efficient and portable pneumatic four-mandrel crimping tool which is simple in structure, can quickly adjust the crimping depth and meet the crimping requirements of different terminals.

Therefore, the technical scheme of the utility model is as follows: a high-efficiency portable pneumatic four-mandrel compression joint tool comprises a compression joint assembly and a power assembly, wherein the compression joint assembly comprises a cover body, the front end of the cover body is a compression joint position, a push block, a clamp handle and a gear conversion assembly are arranged in the cover body, the push block is connected with the power assembly, an inclined chute is arranged on the push block, a bearing is arranged at the tail end of the clamp handle, and the bearing is arranged in the chute of the push block; a clamp shaft is fixedly arranged on the compression joint of the cover body, a movable hole is arranged at the front end of the clamp handle, the clamp shaft is arranged in the movable hole, and the clamp handle can be driven by the push block to rotate around the clamp shaft; the gear conversion assembly comprises a positioning block, a rack, a gear and a rotating shaft, wherein one side of the positioning block, which faces the push block, is of an inclined structure, a plurality of longitudinally arranged step surfaces are arranged on the inclined structure, and the other side of the positioning block is movably arranged on a guide post pin; the rack is fixed on the positioning block, the gear is installed on the rotating shaft, the gear is meshed with the rack, the rotating shaft drives the gear to rotate, the gear drives the positioning block to slide along the guide post pin through the rack, and the push block abuts against any step surface of the positioning block.

The ejector pad is pushed by power component and is removed to the crimping position, and when pushing the removal, pincers handle end receives the spout to drive, and whole pincers handle rotates around the pincers axle for the pincers tooth in the pincers axle begins the crimping terminal. The pushing block moves forwards and can be blocked by the positioning block, and the moving stroke of pushing determines the rotating angle of the clamp handle, so that the crimping depth of the clamp teeth is limited. And one side of the positioning block towards the push block is provided with a plurality of step surfaces which are arranged in an inclined mode, one side of the push block towards the positioning block is provided with an inclined surface, the end part of the inclined surface is abutted to the step surfaces, namely, the linear distance between each step surface and the end part of the inclined surface of the push block is different, therefore, when the gear drives the rack, the rack drives the positioning block to move along the guide pillar pin, the moving direction of the positioning block is perpendicular to the moving direction of the push block, after the positioning block moves, the step surfaces abutted to the push block change, the moving stroke of the push block changes, the rotating angle of the clamp handle changes, the finally, the pressing depth of the clamp teeth changes, different step surfaces correspond to different pressing depths, and the function of adjusting the pressing depth in multiple gears is achieved.

Preferably, the cover body is provided with a scale panel, and scales are arranged on the scale panel; a through hole is arranged in the middle of the scale panel, the rotating shaft penetrates through the through hole and is fixedly connected with the gear, a pin shaft perpendicular to the rotating shaft is arranged on the rotating shaft, and the pin shaft is positioned above the scale; a knob is sleeved on the outer side of the rotating shaft, a groove for a pin shaft to pass through is formed in the side face of the knob, a positioning pin is arranged at the bottom of the knob, a plurality of positioning holes are formed in the scale panel, and the positioning pin is inserted into the positioning holes; the knob can move up and down relative to the rotating shaft and drives the rotating shaft to rotate, and a curved needle spring is arranged above the rotating shaft. The knob drives the rotating shaft to rotate through the pin shaft, so that the gear below is driven to rotate, and the pin shaft is long and can serve as a pointer to point to the scale; the knob is limited by the positioning hole on the scale panel in a normal state, so that the phenomenon that the crimping depth is unstable in the use process is prevented; when the crimping depth needs to be changed, the knob is slightly pulled up to be separated from the positioning hole, then the knob drives the rotating shaft to rotate, after the rotating shaft rotates in place, the knob is put down, and the positioning pin below the knob is inserted into the proper positioning hole; the curved needle spring can prevent the knob from being separated from the rotating shaft.

Preferably, the axle center of the clamp shaft is provided with a crimping hole, the clamp shaft is provided with four mounting holes which are arranged in a cross shape, the center where the mounting holes intersect is the crimping hole, each mounting hole is internally provided with a clamp tooth, the front end of each clamp tooth extends into the crimping hole of the clamp shaft, and the rear end of each clamp tooth abuts against the movable hole of the clamp handle.

Preferably, the edge of the movable hole of the clamp handle is uniformly divided into four crimping track surfaces, and the distances from each point on each crimping track surface to the circle center are different; the rear ends of the clamp teeth abut against the crimping track surface of the clamp handle, when the clamp handle rotates, the clamp teeth move in the mounting holes of the clamp shaft under the action of the crimping track surface, and the front ends of the clamp teeth move oppositely in the crimping holes. The crimping track surface is provided with a starting position, the starting position is farthest away from the circle center, then the crimping track surface slowly inclines inwards, and the distance from each point to the circle center is gradually reduced.

Preferably, the first spring is sleeved on the forceps teeth, one end of the first spring abuts against the inner wall of the mounting hole, the other end of the first spring abuts against the tail end of the forceps teeth, and the tail end of the forceps teeth is tightly attached to the crimping track surface of the forceps handle.

The pincers tooth front end is crimping portion, the rear end supports on the crimping orbit face of pincers handle, because each point is different apart from the distance of centre of a circle on the crimping orbit face of pincers handle, so when pincers handle rotates, the position of contradicting changes on pincers tooth and the crimping orbit face, thereby four pincers teeth move to center department in step, the crimping portion of pincers tooth front end is to the terminal crimping, and pincers handle turned angle is different, the pincers tooth is different to the removal stroke of center department, the concave point degree of depth on the terminal that causes has just also been different, the different fender position of crimping degree of depth is adjusted has been realized.

Preferably, the power assembly comprises a connecting cylinder, the front end of the connecting cylinder is fixedly connected with the cover body through a connecting sleeve, the rear end of the connecting cylinder is fixed with a bottom plate, and a ventilation interface is arranged on the bottom plate; a piston which is tightly matched with the connecting cylinder is arranged in the connecting cylinder, the piston is fixedly connected with the push block, and a second spring is arranged at the front end of the piston. The connecting cylinder is directly connected with the ventilation equipment, the piston is pushed by air pressure, the piston moves forwards and pushes the push block to move towards the positioning block, and the clamp handle is driven to complete the compression joint work.

Compared with the prior art, the utility model has the beneficial effects that: the structure is simple, and the stepped surface is arranged on the positioning block, so that the stroke of the push block and the rotation angle of the clamp handle are changed, and the compression joint depth of the clamp teeth is changed; different step faces correspond different crimping depths, according to the user demand, the step quantity and the step thickness of locating piece can be set up, thereby adjust the crimping depth of single pneumatic crimping tool and keep off the position number and every grade of crimping depth that corresponds, be applicable to the terminal crimping of different specifications, for example, the required crimping depth range of crimping of meticulous small-bore terminal and the depth range of heavy-calibre terminal crimping are different completely, the thickness of each step face on the locating piece can be reduced to the small-bore terminal, reduce the crimping depth difference value of different grades, improve the crimping precision.

Drawings

The following detailed description is made with reference to the accompanying drawings and embodiments of the present invention

FIG. 1 is an exploded view of a crimp assembly;

FIG. 2 is an assembly view of the crimping assembly and the power assembly;

fig. 3 and 4 are internal structure views of the gear shifting assembly;

FIG. 5 is a schematic view of the installation of the pliers handles;

FIG. 6 is a structural cross-sectional view of the power assembly;

FIG. 7 is an exploded view of a component of the power assembly;

fig. 8 is a schematic structural diagram of the knob.

Labeled as: the clamp comprises a cover body 1, a push block 2, a sliding groove 21, a clamp handle 3, a bearing 31, a movable hole 32, a starting part 33, a clamp shaft 4, a pressing connection hole 41, clamp teeth 42, a positioning block 5, a rack 51, a step surface 52, a guide post pin 53, a gear 61, a rotating shaft 62, a knob 63, a scale panel 64, a scale 65, a pin shaft 66, a groove 67, a curved needle spring 68, a power assembly 7, a connecting cylinder 71, a connecting sleeve 72, a bottom plate 73, a ventilation interface 74, a piston 75, a second spring 76 and a fastening bolt 77.

Detailed Description

In the description of the present invention, it should be noted that, for the terms of orientation, such as "central", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate that the orientation and positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific scope of the present invention.

Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, a definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and in the description of the utility model, "a number" or "a number" means two or more unless explicitly specified otherwise.

See the drawings. The pneumatic four-mandrel compression joint tool comprises a compression joint assembly and a power assembly 7, wherein the compression joint assembly comprises a cover body 1, the front end of the cover body is a compression joint position, a push block 2, a clamp handle 3 and a gear conversion assembly are arranged in the cover body, the push block 2 is connected with the power assembly, an inclined chute 21 is formed in the push block 2, a bearing 31 is arranged at the tail end of the clamp handle 3, and the bearing is arranged in the chute of the push block; a clamp shaft 4 is fixedly arranged on the compression joint of the cover body 1, a movable hole 32 is arranged at the front end of the clamp handle 3, the clamp shaft 4 is arranged in the movable hole 32, and the clamp handle 3 can be driven by the push block 2 to rotate around the clamp shaft 4; the movable hole of the clamp handle is not circular, the edge of the movable hole 32 is divided into four same crimping track surfaces, the crimping track surfaces are provided with starting positions 33, the starting positions are farthest away from the circle center, then the crimping track surfaces slowly incline inwards, and the distance from each point to the circle center is gradually reduced.

The axle center department of pincers axle 4 is equipped with crimping hole 41, is equipped with four mounting holes that are the cross and arrange on the pincers axle, and the center that the mounting hole intersects is the crimping hole, is equipped with pincers tooth 42 in every mounting hole, and pincers tooth front end is sharp-pointed crimping portion, and the mounting hole inner wall is equipped with convex annular face, and the cover has first spring on the pincers tooth, and first spring one end supports on the annular face, and one end supports at pincers tooth end for the terminal crimping orbit face of pincers tooth department closely laminates with pincers handle. In the initial stage, the forceps teeth 42 are located at the starting position 33 of the crimping track surface, the crimping part at the front ends of the forceps teeth does not extend into the crimping hole, the terminals can be placed in the crimping hole, the tail ends of the forceps handles tilt upwards along with the forward movement of the pushing block, the front ends rotate around the forceps shaft, and in the rotating process, the tail ends of the forceps teeth are pressed by the crimping track surface and move towards the crimping hole, so that the crimping part at the front ends of the forceps teeth extends into the crimping hole to crimp the terminals. The movable hole is provided with four same crimping track surfaces, so that the four forceps teeth synchronously move towards the crimping hole in the center, and the crimping part at the front ends of the forceps teeth crimp the terminal. Because the distance from each point on the crimping track surface to the circle center is reduced in sequence, the rotating angles of the clamp handles are different, the moving strokes of the clamp teeth to the center are different, and the depth of the concave point on the terminal is different.

Pincers handle 3 sets up respectively in ejector pad 2 both sides with keeping off a position conversion subassembly, keeps off a position conversion subassembly and includes locating piece 5, rack 51, gear 61, pivot 62 and knob 63, locating piece 5 is the inclined plane towards ejector pad one side, and is equipped with a plurality of vertical step faces 52 that set up on the inclined plane, be similar to the stair of caving, and ejector pad 2 is the face of dodging of slope towards one side of locating piece, the tip of the face of dodging sets up a 90 degrees apex angle, when the ejector pad was promoted by power component 7, the apex angle can support on a certain step face of locating piece. The other side of the positioning block 5 is movably mounted on a guide pin 53 and can horizontally move along the guide pin, and the moving direction is perpendicular to the moving direction of the push block, so that when the positioning block moves along the guide pin, the vertex angle of the push block can be supported on different step surfaces, and the moving stroke of pushing is changed.

The rack 51 is fixed on the positioning block 5, the rack 51 is parallel to the guide post pin 53, the rack 51 is meshed with the gear 61, and the gear 61 is arranged on the rotating shaft 62; a scale panel 64 is arranged on the cover body, and scales 65 are arranged on the scale panel; a through hole is arranged in the middle of the scale panel, the rotating shaft 62 passes through the through hole and is fixedly connected with the gear 61, a pin shaft 66 vertical to the rotating shaft 62 is arranged on the rotating shaft 62, and the pin shaft is positioned above the scale; a knob 63 is sleeved on the outer side of the rotating shaft 62, a groove 67 for a pin shaft 66 to pass through is formed in the side surface of the knob, a positioning pin is arranged at the bottom of the knob, a plurality of positioning holes are formed in the scale panel, and the positioning pin is inserted into the positioning holes; the knob can move up and down relative to the rotating shaft and drives the rotating shaft to rotate, and a curved needle spring 68 is arranged above the rotating shaft.

The knob 63 drives the rotating shaft 62 to rotate through the pin 66, so as to drive the lower gear 61 to rotate, the gear 61 drives the positioning block 5 to slide along the guide post pin 53 through the rack 51, and the pushing block abuts against different step surfaces of the positioning block. The pin 66 is relatively long and can also serve as a pointer to point to the corresponding scale; the knob 63 is limited by the positioning hole on the scale panel in a normal state, so that the phenomenon that the crimping depth is unstable in the use process is prevented; when the crimping depth needs to be changed, the knob is slightly pulled up to be separated from the positioning hole, then the knob drives the rotating shaft to rotate, after the rotating shaft rotates in place, the knob is put down, and the positioning pin below the knob is inserted into the proper positioning hole; the curved needle spring 68 prevents the knob from being disengaged from the spindle.

The rotation of the clamp handle is determined by the sliding groove which is inclined on the pushing block, so that when the moving stroke of the pushing block is changed, the position of the tail end of the clamp handle on the sliding groove is changed, the rotating angle of the clamp handle can be changed, the moving stroke of the clamp tooth to the center is changed, and the crimping depth on the terminal is changed.

The power assembly 7 is a power source of the crimping tool and comprises a connecting cylinder 71, the front end of the connecting cylinder 71 is fixedly connected with the cover body 1 through a connecting sleeve 72, the rear end of the connecting cylinder 71 is fixedly provided with a bottom plate 73, and the bottom plate is provided with a ventilation interface 74; a piston 75 which is tightly matched with the connecting cylinder is arranged in the connecting cylinder, the piston 75 is fixedly connected with the push block 2 through a fastening bolt 77, and a second spring 76 is arranged at the front end of the piston. The connecting cylinder is directly connected with the ventilation equipment, the piston is pushed by air pressure, the piston moves forwards and pushes the push block to move towards the positioning block, and the clamp handle is driven to complete the compression joint work.

Before the operation, select the crimping according to the demand earlier and keep off the position, rotate knob 63, make it drive pivot 62 rotation through round pin 66 to drive below gear 61 and rotate, gear 61 drives locating piece 5 through rack 51 and slides along guide pillar round pin 53, makes the step face that keeps off the position and corresponds move to the relative position of the apex angle of ejector pad 2. Then the power component 7 is ventilated, the piston 75 is pushed by air pressure, the piston moves forwards and pushes the push block 2, and the top angle of the push block 2 is abutted against the step surface of the positioning block 5; when the push block 2 moves, the tail end of the clamp handle 3 is driven by the sliding groove, and the whole clamp handle 3 rotates around the clamp shaft 4, so that the clamp teeth 42 in the clamp shaft move towards the center of the clamp shaft under the action of the crimping track surface to start crimping the terminal. The pushing block 2 moves forwards and is blocked by the positioning block 5, and the moving stroke of pushing determines the rotating angle of the clamp handle, so that the crimping depth of the clamp teeth is limited. When the gear drives the rack, the rack drives the positioning block to move along the guide post pin, the moving direction of the positioning block is perpendicular to the moving direction of the pushing block, after the positioning block moves, the step surface abutted to the pushing block changes, so that the moving stroke of the pushing block changes, the rotating angle of the clamp handle changes, the crimping depth of the clamp teeth finally changes, different step surfaces correspond to different crimping depths, and the function of adjusting the crimping depth in multiple gears is achieved.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.

Claims (6)

1. The utility model provides a high-efficient light pneumatic four-core axle crimping instrument, includes crimping subassembly and power component, its characterized in that: the compression joint assembly comprises a cover body, the front end of the cover body is a compression joint position, a push block, a clamp handle and a gear conversion assembly are arranged in the cover body, the push block is connected with the power assembly, an inclined sliding groove is formed in the push block, a bearing is mounted at the tail end of the clamp handle, and the bearing is arranged in the sliding groove of the push block; a clamp shaft is fixedly arranged on the compression joint of the cover body, a movable hole is arranged at the front end of the clamp handle, the clamp shaft is arranged in the movable hole, and the clamp handle can be driven by the push block to rotate around the clamp shaft; the gear conversion assembly comprises a positioning block, a rack, a gear and a rotating shaft, wherein one side of the positioning block, which faces the push block, is of an inclined structure, a plurality of longitudinally arranged step surfaces are arranged on the inclined structure, and the other side of the positioning block is movably arranged on a guide post pin; the rack is fixed on the positioning block, the gear is installed on the rotating shaft, the gear is meshed with the rack, the rotating shaft drives the gear to rotate, the gear drives the positioning block to slide along the guide post pin through the rack, and the push block abuts against any step surface of the positioning block.

2. A highly efficient lightweight pneumatic four spindle crimping tool as claimed in claim 1, wherein: the cover body is provided with a scale panel, and scales are arranged on the scale panel; a through hole is arranged in the middle of the scale panel, the rotating shaft penetrates through the through hole and is fixedly connected with the gear, a pin shaft perpendicular to the rotating shaft is arranged on the rotating shaft, and the pin shaft is positioned above the scale; a knob is sleeved on the outer side of the rotating shaft, a groove for a pin shaft to pass through is formed in the side face of the knob, a positioning pin is arranged at the bottom of the knob, a plurality of positioning holes are formed in the scale panel, and the positioning pin is inserted into the positioning holes; the knob can move up and down relative to the rotating shaft and drives the rotating shaft to rotate, and a curved needle spring is arranged above the rotating shaft.

3. A highly efficient lightweight pneumatic four spindle crimping tool as claimed in claim 1, wherein: the axle center department of pincers axle is equipped with the crimping hole, is equipped with four mounting holes that are the cross and arrange on the pincers axle, and the center that the mounting hole intersects is the crimping hole, is equipped with the pincers tooth in every mounting hole, and the pincers tooth front end stretches into the crimping hole of pincers axle, and the rear end supports on the activity hole of pincers handle.

4. A highly efficient lightweight pneumatic four spindle crimping tool as claimed in claim 3 wherein: the movable hole edge of the clamp handle is uniformly divided into four crimping track surfaces, and the distances from each point on each crimping track surface to the circle center are different; the rear ends of the clamp teeth abut against the crimping track surface of the clamp handle, when the clamp handle rotates, the clamp teeth move in the mounting holes of the clamp shaft under the action of the crimping track surface, and the front ends of the clamp teeth move oppositely in the crimping holes.

5. A highly efficient lightweight pneumatic four spindle crimping tool as claimed in claim 3 wherein: the clamp teeth are sleeved with first springs, one ends of the first springs abut against the inner wall of the mounting hole, the other ends of the first springs abut against the tail ends of the clamp teeth, and the tail ends of the clamp teeth are tightly attached to the crimping track surface of the clamp handle.

6. A highly efficient lightweight pneumatic four spindle crimping tool as claimed in claim 1, wherein: the power assembly comprises a connecting cylinder, the front end of the connecting cylinder is fixedly connected with the cover body through a connecting sleeve, the rear end of the connecting cylinder is fixedly provided with a bottom plate, and the bottom plate is provided with a ventilation interface; a piston which is tightly matched with the connecting cylinder is arranged in the connecting cylinder, the piston is fixedly connected with the push block, and a second spring is arranged at the front end of the piston.

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