A press-fit device for connector on vehicle wiring harness tube

Abstract

The present invention relates to a press-fit device for a connector on a vehicle wiring harness tube, comprising a bottom plate, a vertical and L-shaped positioning seat fixedly connected to the bottom plate, a circular press-fit positioning hole formed on the lower end surface of the front of the positioning seat, a circular clamping hole formed on the upper bottom surface of the press-fit positioning hole, a plug hole penetrating the upper end surface of the positioning seat formed on the upper bottom surface of the clamping hole, a dividing groove formed transversely and dividing the press-fit positioning hole, the clamping hole and the plug hole at the front of the positioning seat, the dividing groove dividing the press-fit positioning hole into a moving clamp block on the front side and a positioning clamp seat on the rear side; longitudinal pull rods are respectively inserted and fixed on the moving clamp blocks on both sides of the press-fit positioning hole, the rear end of the pull rod passes through the positioning clamp seat and is fixedly connected to a linkage plate, a clamping cylinder is fixedly connected to the linkage plate, and the piston rod of the clamping cylinder passes through the linkage plate and is fixedly connected to the positioning clamp seat. The press-fit device has a simple and compact structure, can meet the press-fit connection of the vehicle wiring harness tube connection with an embedded structure, and the press-fit connection is relatively convenient and quick.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle wiring harness press-fitting equipment, and more particularly to a press-fitting device for a connector on a vehicle wiring harness tube. Background Art

[0002] A trailer is a vehicle towed by a car but without its own power drive device. It is a combination of a car (truck or tractor, forklift) and one or more trailers. Trucks and tractor cars are the driving sections of a car train, called main cars. The existing main cars and trailers are connected by air pipes, wires and water pipes to achieve the connection of circuits, waterways and airways. The air pipes, wires and water pipes are called vehicle wiring harnesses. For the vehicle wiring harnesses of the waterway and airway, connectors are generally pressed on both ends. The connectors are generally fixed to the nylon tube by pressing. The conventional connector includes an external connector with a pagoda plug and an external jacket. The nylon tube is inserted into the pagoda plug of the external connector, and the external jacket is inserted into the nylon tube on the outside of the pagoda plug. The outer jacket is deformed by pressing the outer jacket to clamp the nylon tube between the outer jacket and the pagoda plug. The stability of the pressing structure is good, but because the nylon tube does not have the elasticity of the rubber tube, the sealing between the nylon tube and the connector is poor.

[0003] Furthermore, some people proposed a connector assembly with an inner nest, an outer joint with an annular groove and a sealing gasket. The annular groove of the outer joint drives the inner nest to deform, so that when the inner nest and the nylon tube are embedded in the annular groove of the outer joint, the outer joint and the inner nest can clamp and fix the nylon tube, and the sealing gasket can start a good sealing effect. When the connector assembly of this structure is connected to the nylon tube, the existing crimping equipment cannot realize its assembly, and it is necessary to design a corresponding pressing device. Summary of the invention

[0004] The purpose of the present invention is to address the deficiencies of the prior art and provide a press-fit device for a connector on a vehicle wiring harness tube, which can realize the press-fit connection of an embedded vehicle wiring harness tube, and the press-fit connection is relatively convenient and quick.

[0005] A press-fit device for a connector on a vehicle wiring harness tube comprises a bottom plate, a vertical L-shaped positioning seat is fixedly connected to the bottom plate, a circular press-fit positioning hole is formed on the lower end surface of the front part of the positioning seat, a circular clamping hole is formed on the upper bottom surface of the press-fit positioning hole, a plug hole penetrating the upper end surface of the positioning seat is formed on the upper bottom surface of the clamping hole, a dividing groove is formed on the front part of the positioning seat which is transverse and divides the press-fit positioning hole, the clamping hole and the plug hole, and the dividing groove divides the press-fit positioning hole into a moving clamp block on the front side and a positioning clamp seat on the rear side; longitudinal pull rods are respectively inserted and fixed on the moving clamp blocks on both sides of the press-fit positioning hole, the rear end of the pull rod passes through the positioning clamp seat and is fixedly connected to a linkage plate, a clamping cylinder is fixedly connected to the linkage plate, and a piston rod of the clamping cylinder passes through the linkage plate and is fixedly connected to the positioning clamp seat;

[0006] A vertical inner nest is clamped in the clamping hole of the positioning seat, a connecting head is provided directly below the inner nest, the connecting head is inserted on the lifting seat, a plurality of vertical sliders are fixed on the rear end surface of the lifting seat, guide rails are inserted on the sliders, and the guide rails are fixed on the positioning seat; a vertical pressing cylinder is placed on the bottom plate directly below the lifting seat, and the piston rod of the pressing cylinder rests on the lifting seat.

[0007] Preferably, the upper and lower end surfaces of the positioning clamp seat on both sides of the press-fit positioning hole are respectively formed with limiting grooves, and limiting blocks are inserted in the limiting grooves, and the limiting blocks are formed on the rear end surface of the dynamic clamp block;

[0008] A longitudinal support assembly is abutted against the lower end face of the front part of the positioning seat, and the support assembly includes push blocks respectively fixed on the limit blocks on the lower side of the moving clamping block, and the rear end face of the push block abuts against an L-shaped supporting plate, and a longitudinal T-shaped guide rod is inserted into the supporting plate, and the rear end of the T-shaped guide rod is fixedly connected to the guide rail, and a spring is inserted into the T-shaped guide rod, and the two ends of the spring are respectively pressed against the supporting plate and the guide rail.

[0009] Preferably, the central axis of the insertion hole on the positioning seat, the central axis of the clamping hole and the central axis of the press-fit positioning hole coincide with each other, and the apertures of the press-fit positioning hole, the clamping hole and the insertion hole gradually decrease.

[0010] Preferably, the connector comprises a regular hexagonal limit head, an external threaded pipe is formed on the lower end of the limit head, a locking sleeve connected to the external threaded pipe is formed on the upper end surface, the external threaded pipe is inserted on the lifting seat, and the outer wall of the locking sleeve and the inner wall of the press-fitted positioning hole on the positioning seat are in the same cylindrical surface;

[0011] A locking ring groove which is opposite to the inner nest and in a circular shape is formed on the upper end surface of the locking sleeve, and a plurality of vertical buckle convex strips are formed on the inner wall of the outer ring of the locking ring groove, and the upper and lower ends of the buckle convex strips are both chamfered; a spacing is provided between the lower end of the buckle convex strip and the bottom surface of the locking ring groove, and a sealing gasket is inserted in the locking ring groove on the lower side of the buckle convex strip.

[0012] Preferably, the diameter of the inner nested outer wall is smaller than the diameter of the inner wall of the outer ring of the locking ring groove, and the diameter of the inner nested inner wall is larger than the diameter of the inner wall of the inner ring of the locking ring groove; the center distance from the buckle convex strip to the center of the locking sleeve is smaller than the radius of the inner nested outer wall.

[0013] Preferably, the lifting seat includes an L-shaped main seat plate, triangular ribs are fixedly connected to both sides of the main seat plate, a rectangular reference block is fixedly connected to the upper end surface of the main seat plate, and the side end surface of the limit head abuts against the front end surface of the reference block.

[0014] Preferably, a cushion block is provided between the lower end of the press-fitting oil cylinder and the bottom plate, and an oil pipe avoidance groove opposite to the press-fitting oil cylinder is formed in the middle of the lower end of the positioning seat.

[0015] Preferably, parallelogram-shaped reinforcement plates are fixedly connected to both sides of the positioning seat by bolts, and the lower ends of the reinforcement plates are welded and fixed to the bottom plate.

[0016] The beneficial effects of the present invention are:

[0017] The press-fitting device has a simple and compact structure, can meet the requirements of press-fitting connection of vehicle wiring harness tubes with an embedded structure, and the press-fitting connection is relatively convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0019] Figure 2 It is a front view structural schematic diagram of the present invention;

[0020] Figure 3 It is a partial cross-sectional schematic diagram of the present invention in a side view direction;

[0021] Figure 4 for Figure 2 Schematic cross-sectional view at AA in the middle.

[0022] In the figure: 1. bottom plate; 2. positioning seat; 21. press-fit positioning hole; 22. clamping hole; 23. jack; 24. dividing groove; 25. limiting groove; 3. moving clamp block; 31. limiting block; 4. supporting assembly; 41. push block; 42. supporting plate; 43. T-shaped guide rod; 44. spring; 5. inner nesting; 6. connector; 61. limiting head; 62. external threaded pipe; 63. locking sleeve; 64. locking ring groove; 65. sealing gasket; 66. pressing buckle convex strip; 7. lifting seat; 71. main seat plate; 72. rib plate; 8. slider; 9. guide rail; 10. press-fit cylinder; 11. pull rod; 12. linkage plate; 13. clamping cylinder; 14. reference block; 15. reinforcement plate; 16. cushion block. DETAILED DESCRIPTION

[0023] Example: See Figures 1 to 4 As shown, a press-fitting device for a connector on a vehicle wiring harness tube comprises a base plate 1, a vertical and L-shaped positioning seat 2 is fixedly connected to the base plate 1, a circular press-fitting positioning hole 21 is formed on the lower end surface of the front part of the positioning seat 2, a circular clamping hole 22 is formed on the upper bottom surface of the press-fitting positioning hole 21, a plug hole 23 penetrating the upper end surface of the positioning seat 2 is formed on the upper bottom surface of the clamping hole 22, a dividing groove 24 is formed on the front part of the positioning seat 2 which is transverse and divides the press-fitting positioning hole 21, the clamping hole 22 and the plug hole 23, the dividing groove 24 divides the press-fitting positioning hole 21 into a moving clamping block 3 on the front side and a positioning clamping seat on the rear side; longitudinal pull rods 11 are respectively inserted and fixed on the moving clamping blocks 3 on both sides of the press-fitting positioning hole 21, the rear end of the pull rod 11 passes through the positioning clamping seat and is fixedly connected to a linkage plate 12, a clamping cylinder 13 is fixedly connected to the linkage plate 12, and a piston rod of the clamping cylinder 13 passes through the linkage plate 12 and is fixedly connected to the positioning clamping seat;

[0024] A vertical inner nest 5 is clamped in the clamping hole 22 of the positioning seat 2, and a connecting head 6 is provided directly below the inner nest 5. The connecting head 6 is inserted into the lifting seat 7. A plurality of vertical sliders 8 are fixed to the rear end surface of the lifting seat 7. The sliders 8 are inserted with guide rails 9, and the guide rails 9 are fixed to the positioning seat 2; a vertical pressing cylinder 10 is placed on the bottom plate 1 directly below the lifting seat 7, and the piston rod of the pressing cylinder 10 rests on the lifting seat 7.

[0025] The upper and lower end surfaces of the positioning clamp seat on both sides of the press-fitting positioning hole 21 are respectively formed with limiting grooves 25, and a limiting block 31 is inserted in the limiting groove 25. The limiting block 31 is formed on the rear end surface of the movable clamp block 3; the limiting blocks 31 are respectively against the bottom surface of the limiting groove 25, which can strengthen the connection strength between the movable clamp block 3 and the positioning clamp seat in the vertical direction, and can prevent the pull rod 11 from deforming during the press-fitting process;

[0026] The lower end surface of the front part of the positioning seat 2 is against a longitudinal support assembly 4, and the support assembly 4 includes a push block 41 respectively fixed on the limit block 31 on the lower side of the movable clamping block 3, and the rear end surface of the push block 41 is against an L-shaped support plate 42, and a longitudinal T-shaped guide rod 43 is inserted on the support plate 42, and the rear end of the T-shaped guide rod 43 is fixed on the guide rail 9, and a spring 44 is inserted on the T-shaped guide rod 43, and the two ends of the spring 44 are pressed against the support plate 42 and the guide rail 9 respectively;

[0027] like Figure 3 As shown, the front end of the T-shaped guide rod 43 is located at the front side of the supporting plate 42 , and the supporting plate 42 is located at the rear side of the press-fitting positioning hole 21 .

[0028] The central axis of the insertion hole 23 on the positioning seat 2, the central axis of the clamping hole 22 and the central axis of the press-fit positioning hole 21 coincide with each other, and the apertures of the press-fit positioning hole 21, the clamping hole 22 and the insertion hole 23 gradually become smaller.

[0029] The connector 6 comprises a regular hexagonal limiting head 61, an external threaded pipe 62 is formed on the lower end of the limiting head 61, and a locking sleeve 63 connected to the external threaded pipe 62 is formed on the upper end surface. The external threaded pipe 62 is inserted on the lifting seat 7, and the outer wall of the locking sleeve 63 and the inner wall of the press-fitting positioning hole 21 on the positioning seat 2 are in the same cylindrical surface;

[0030] A locking ring groove 64 opposite to the inner nest 5 and in a circular shape is formed on the upper end surface of the locking sleeve 63, and a plurality of vertical buckle ridges 66 are formed on the inner wall of the outer circle of the locking ring groove 64, and the upper and lower ends of the buckle ridges 66 are both chamfered; a gap is provided between the lower end of the buckle ridge 66 and the bottom surface of the locking ring groove 64, and a sealing gasket 65 is inserted in the locking ring groove 64 on the lower side of the buckle ridge 66.

[0031] The diameter of the outer wall of the inner nest 5 is smaller than the diameter of the inner wall of the outer circle of the locking ring groove 64, and the diameter of the inner wall of the inner nest 5 is larger than the diameter of the inner wall of the inner circle of the locking ring groove 64; the center distance from the buckle convex strip 66 to the center of the locking sleeve 63 is smaller than the radius of the outer wall of the inner nest 5.

[0032] The lifting seat 7 includes an L-shaped main seat plate 71, and triangular rib plates 72 are fixedly connected to both sides of the main seat plate 71. A rectangular reference block 14 is fixedly connected to the upper end surface of the main seat plate 71. The side end surface of the limit head 61 abuts against the front end surface of the reference block 14, and the piston rod of the press-fitting cylinder 10 is fixedly connected to the main seat plate 71 at the reference block 14.

[0033] A cushion block 16 is provided between the lower end of the press-fitting oil cylinder 10 and the bottom plate 1 , and an oil pipe avoidance groove opposite to the press-fitting oil cylinder 10 is formed in the middle of the lower end of the positioning seat 2 .

[0034] Parallelogram-shaped reinforcing plates 15 are fixedly connected to both sides of the positioning seat 2 by bolts, and the lower ends of the reinforcing plates 15 are welded and fixed to the bottom plate 1 .

[0035] Working principle: The present invention is a press-fit device for a connector on a vehicle wiring harness tube, and the structure of the press-fit device is as follows: Figure 1 As shown, the specific pressing process is as follows;

[0036] 1. Workpiece placement:

[0037] 1) Insert the connector 6 provided with the sealing gasket 65 on the lifting seat 7 and abut against the reference block 14, and the reference block 14 restricts the connector 6 from rotating;

[0038] 2) Start the clamping cylinder 13, the piston rod of the clamping cylinder 13 contracts, driving the pull rod 11 to move forward, thereby driving the movable clamp block 3 to move, so that the movable clamp block 3 is separated from the positioning seat 2. The forward movement of the movable clamp block 3 will prompt the push block 41 to move forward, and the supporting plate 42 will move to the bottom of the press-fitting positioning hole 21 under the action of the spring 44; insert the inner nest 5 into the clamping hole 22, and make the lower end of the inner nest 5 abut against the supporting plate 42, and then insert the nylon tube into the inner nest 5 through the insertion hole 23, and make the lower end of the nylon tube abut against the supporting plate 42; finally, the clamping cylinder 13 is reset, and the movable clamp block 3 is reset to cooperate with the positioning seat 2 to clamp the inner nest 5, and at the same time, the supporting plate 42 moves backward and no longer covers the press-fitting positioning hole 21;

[0039] 2. Press-fit connection:

[0040] After the workpiece is placed, the press-fitting cylinder 10 is started, and the press-fitting cylinder 10 drives the lifting seat 7 to move upward, thereby prompting the locking sleeve 63 of the connector 6 to enter the press-fitting positioning hole 21, and at the same time, the inner nest 5 and the nylon tube are pressed into the locking ring groove 64 of the locking sleeve 63 (because the lower end of the inner nest 5 is deformed first, it will be pressed on the nylon tube, prompting the nylon tube to move downward together), and finally the lower ends of the inner nest 5 and the nylon tube are pressed against the sealing gasket 65, and the sealing between the nylon tube and the connector 6 is achieved based on the sealing gasket 65; at the same time, the deformation of the inner nest 5 can cooperate with the connector 6 to clamp and fix the nylon tube, and during the press-fitting process, the inner wall of the press-fitting positioning hole 21 constrains the locking sleeve 63 outside the locking ring groove 64 to expand and crack outward;

[0041] 3. Remove the workpiece;

[0042] The press-fitting cylinder 10 is reset to reset the lifting seat 7, and the connector 6 is separated from the lifting seat 7. Then the clamping cylinder 13 is started, and the movable clamp block 3 moves forward. The workpiece is taken out from between the movable clamp block 3 and the positioning seat 2 by pulling the nylon tube.

[0043] The embodiments are used to illustrate the present invention, but not to limit the present invention. Any person skilled in the art may modify the embodiments without violating the spirit and scope of the present invention, and therefore, the scope of protection of the present invention shall be as set forth in the claims of the present invention.

Claims

1. A press-fit device for a connector on a vehicle wiring harness tube, comprising a base plate (1), a vertical L-shaped positioning seat (2) being fixedly connected to the base plate (1), a circular press-fit positioning hole (21) being formed on the lower end surface of the front portion of the positioning seat (2), and characterized in that: A circular clamping hole (22) is formed on the upper bottom surface of the press-fit positioning hole (21), and a plug hole (23) penetrating the upper end surface of the positioning seat (2) is formed on the upper bottom surface of the clamping hole (22). A dividing groove (24) is formed on the front part of the positioning seat (2) and is transverse and divides the press-fit positioning hole (21), the clamping hole (22) and the plug hole (23). The dividing groove (24) divides the press-fit positioning hole (21) into a movable clamping block (3) on the front side and a positioning clamping seat on the rear side. The movable clamping blocks (3) on both sides of the press-fit positioning hole (21) are respectively plugged and fixed with longitudinal pull rods (11), and the rear end of the pull rod (11) passes through the positioning clamping seat and is fixedly connected to a linkage plate (12), and the linkage plate (12) is fixedly connected to a clamping cylinder (13), and the piston rod of the clamping cylinder (13) passes through the linkage plate (12) and is fixedly connected to the positioning clamping seat. A vertical inner nest (5) is clamped in the clamping hole (22) of the positioning seat (2), a connecting head (6) is provided directly below the inner nest (5), the connecting head (6) is inserted into the lifting seat (7), a plurality of vertical sliders (8) are fixed to the rear end surface of the lifting seat (7), a guide rail (9) is inserted into the sliders (8), and the guide rail (9) is fixed to the positioning seat (2); a vertical pressing cylinder (10) is placed on the bottom plate (1) directly below the lifting seat (7), and the piston rod of the pressing cylinder (10) is against the lifting seat (7); The connecting head (6) comprises a regular hexagonal limiting head (61), the lower end of the limiting head (61) is formed with an external threaded pipe (62), the upper end surface is formed with a locking sleeve (63) connected to the external threaded pipe (62), the external threaded pipe (62) is inserted on the lifting seat (7), and the outer wall of the locking sleeve (63) and the inner wall of the press-fitting positioning hole (21) on the positioning seat (2) are in the same cylindrical surface; A locking ring groove (64) is formed on the upper end surface of the locking sleeve (63) and is opposite to the inner nest (5) and is in a circular shape. A plurality of vertical buckle convex strips (66) are formed on the inner wall of the outer ring of the locking ring groove (64). The upper and lower ends of the buckle convex strips (66) are both chamfered. A spacing is provided between the lower end of the buckle convex strip (66) and the bottom surface of the locking ring groove (64). A sealing gasket (65) is inserted into the locking ring groove (64) on the lower side of the buckle convex strip (66). The diameter of the outer wall of the inner nest (5) is smaller than the diameter of the inner wall of the outer ring of the locking ring groove (64), and the diameter of the inner wall of the inner nest (5) is larger than the diameter of the inner wall of the inner ring of the locking ring groove (64); the center distance from the buckle convex strip (66) to the center of the locking sleeve (63) is smaller than the radius of the outer wall of the inner nest (5).

2. The press-fitting device for a connector on a vehicle wiring harness tube according to claim 1, characterized in that: Limiting grooves (25) are respectively formed on the upper and lower end surfaces of the positioning clamp seat on both sides of the press-fitting positioning hole (21), and limiting blocks (31) are inserted in the limiting grooves (25). The limiting blocks (31) are formed on the rear end surface of the movable clamp block (3); A longitudinal support assembly (4) is abutted against the lower end surface of the front portion of the positioning seat (2), and the support assembly (4) includes a push block (41) fixed to a limit block (31) at the lower side of the movable clamping block (3), and a rear end surface of the push block (41) abuts against an L-shaped support plate (42), and a longitudinal T-shaped guide rod (43) is inserted into the support plate (42), and the rear end of the T-shaped guide rod (43) is fixedly connected to the guide rail (9), and a spring (44) is inserted into the T-shaped guide rod (43), and the two ends of the spring (44) are pressed against the support plate (42) and the guide rail (9) respectively.

3. The press-fitting device for a connector on a vehicle wiring harness tube according to claim 1, characterized in that: The central axis of the insertion hole (23) on the positioning seat (2), the central axis of the clamping hole (22) and the central axis of the press-fit positioning hole (21) coincide with each other, and the apertures of the press-fit positioning hole (21), the apertures of the clamping hole (22) and the insertion hole (23) gradually decrease.

4. The press-fitting device for a connector on a vehicle wiring harness tube according to claim 3, characterized in that: The lifting seat (7) comprises an L-shaped main seat plate (71), triangular rib plates (72) are fixedly connected to both sides of the main seat plate (71), a rectangular reference block (14) is fixedly connected to the upper end surface of the main seat plate (71), and the side end surface of the limit head (61) abuts against the front end surface of the reference block (14).

5. The press-fitting device for a connector on a vehicle wiring harness tube according to claim 1, characterized in that: A cushion block (16) is provided between the lower end of the press-fitting oil cylinder (10) and the bottom plate (1), and an oil pipe avoidance groove opposite to the press-fitting oil cylinder (10) is formed in the middle of the lower end of the positioning seat (2).

6. The press-fitting device for a connector on a vehicle wiring harness tube according to claim 1, characterized in that: Parallelogram-shaped reinforcement plates (15) are fixedly connected to both sides of the positioning seat (2) by means of bolts, and the lower ends of the reinforcement plates (15) are welded and fixed to the bottom plate (1).

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