Automatic nut screwing device for wire harness connector

Abstract

The utility model discloses an automatic nut screwing device for a wire harness connector. The automatic nut screwing device comprises a shell; the screwing part is arranged at one end of the shell, the screwing part comprises a rotating disc, a hole is formed in the middle of the rotating disc, a driving assembly for driving the rotating disc to rotate is arranged on the outer side of the rotating disc, a connecting plate is fixedly connected to the end of the rotating disc, and a screwing clamping head is fixedly connected to the end of the connecting plate and used for rotating a connector nut. The nut screwing device has the advantages that the rotating disc is arranged to be matched with the air cylinder, automatic screwing operation can be achieved, nut screwing and loosening can be completed continuously and rapidly, manual operation is reduced, and steps are simplified; the servo motor is matched with the air cylinder, so that the screwing torque and the screwing length of the screwing part are ensured to be consistent and accurate, the clamping structure is arranged to quickly replace the fixed limiting groove, the air cylinder is matched to adjust the interior, and the device can adapt to connector nuts of different sizes and types.

Description

Technical Field

[0001] The utility model relates to the technical field of wire harness connector processing, in particular to an automatic tightening device for a wire harness connector nut. Background Art

[0002] The wiring harness connector is a type of terminal, mainly composed of a plug and a socket. This type of connector plays an important role as a relay station in the circuit, and is used to connect and disassemble the connection between the wiring harness and the wiring harness, and between the wiring harness and electrical components. In order to prevent the connector from being disengaged during the driving of the car, a threaded connection is used in the mating part of the plug and the socket. Tightening the nut can generate a certain compression force between the bolt and the parts, thereby ensuring a tight connection between the plug and the socket in the wiring harness connector. This tight connection can prevent the connector from loosening under vibration or force, and ensure the reliability and stability of the connection.

[0003] The existing tightening process uses manual tightening and corresponding tightening equipment. Among them, manual tightening has low accuracy and there are errors and product quality problems caused by improper human operation. When the tightening equipment is in use, it is necessary to disassemble the equipment shell when replacing wiring harness connectors of different models and specifications. The operation is cumbersome, and under the effect of the telescopic length, the nut and the connector may collide or the gap between the connections may be too large to complete the tightening, so it is necessary to measure and test it multiple times, which is time-consuming and labor-intensive. Utility Model Content

[0004] The utility model aims to provide a wire harness connector nut automatic tightening device to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a wiring harness connector nut automatic tightening device, comprising:

[0006] case;

[0007] A screwing part, which is disposed at one end of the housing, and includes a rotating disk with a hole in the middle, a driving assembly for driving the rotating disk to rotate is disposed on the outer side of the rotating disk, a connecting plate is fixedly connected to the end of the rotating disk, and a screwing chuck is fixedly connected to the end of the connecting plate for rotating the connector nut;

[0008] A fixing part, which is disposed in the middle of the rotating disk, and includes a connecting groove disposed inside the shell and a fixed limiting groove clamped at the end of the connecting groove, and is used to fix the connector connector;

[0009] The adjusting part is arranged inside the shell, and the adjusting part comprises a cylinder slidably arranged inside the shell, the output end of the cylinder is connected to the connecting groove, and an adjusting screw is arranged above the cylinder for adjusting the end position of the piston rod when the cylinder is extended.

[0010] Preferably, the driving assembly comprises a driven gear fixedly mounted on the outside of the rotating disk, the outer side of the driven gear is meshingly connected with a driving gear, a servo motor is fixedly connected to the inside of the housing, and the output end of the servo motor is fixedly connected to the driving gear.

[0011] Preferably, two positioning rods for positioning are fixedly connected to one end of the fixed limiting groove, and a limiting slot is provided on the top of the positioning rod.

[0012] Preferably, the connecting groove is internally slidably connected to a limiting plug plate, the top of the limiting plug plate is rotatably connected to a sliding rod, the top of the sliding rod is provided with an external threaded cover, and the top of the connecting groove is provided with an internal threaded hole that cooperates with the external threaded cover.

[0013] Preferably, the sliding rod is slidably connected to the connecting groove, and a return spring is sleeved on the outer side of the sliding rod and located above the limiting plug plate.

[0014] Preferably, a limiting guide rail is fixedly connected to the interior of the shell, a slide table is slidably connected to the outer side of the limiting guide rail, and the cylinder is fixedly connected to the top of the slide table.

[0015] Preferably, the output end of the cylinder is fixedly connected with a push plate, and the push plate is fixedly connected to the connecting groove.

[0016] Preferably, one end of the adjusting screw is rotatably connected to the slide, the adjusting screw is threadedly connected to the shell, the outer side of the adjusting screw is rotatably connected to an observation scale, the observation scale is slidably connected to the inner wall of the shell, and the inner wall of the shell is provided with scale lines matching the observation scale.

[0017] Compared with the prior art, the beneficial effects of the utility model are: by setting the cooperation between the rotating disk and the cylinder, the automatic tightening operation can be realized, the tightening and loosening of the nut can be completed continuously and quickly, reducing manual operations and simplifying steps; through the cooperation between the servo motor and the cylinder, the tightening torque and the tightening length of the screwing part are guaranteed to be consistent and accurate, so that each tightening can meet the preset standards, and the fixed limit groove can be quickly replaced by setting a snap-on structure, and the interior can be adjusted in cooperation with the cylinder, and the device can adapt to connector nuts of different sizes and types. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the observation ruler of the utility model;

[0021] Figure 4 This is a structural schematic diagram of the fixed limit slot of the utility model;

[0022] Figure 5 It is a structural schematic diagram of the limit plug plate of the utility model.

[0023] In the figure: 1. Shell; 2. Rotating disk; 3. Connecting plate; 4. Screw clamp; 5. Fixed limit slot; 6. Driving gear; 7. Servo motor; 8. Driven gear; 9. Connecting slot; 10. Limit guide rail; 11. Slide; 12. Cylinder; 13. Adjusting screw; 14. Pushing plate; 15. Positioning rod; 16. Limiting plug plate; 17. Sliding rod; 18. Reset spring; 19. External thread cover; 20. Observation ruler. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1 , 2 , 3, 4, and 5, the utility model provides a technical solution: an automatic tightening device for a wiring harness connector nut, comprising: a shell 1 with a display screen and an operation panel on the outside; a screwing portion is arranged at one end of the shell 1, the screwing portion comprises a rotating disk 2 with a hole arranged in the middle, the rotating disk 2 is rotatably installed in the shell 1 through a bearing, a driving component for driving the rotating disk 2 to rotate is arranged on the outside of the rotating disk 2, a connecting plate 3 is fixedly connected to the end of the rotating disk 2, a screwing chuck 4 is fixedly connected to the end of the connecting plate 3, the center of the screwing chuck 4 corresponds to the center of the rotating disk 2, and is used for rotating the connection The fixing part is placed in the middle of the rotating disk 2, and the fixing part includes a connecting groove 9 placed inside the shell 1 and a fixed limiting groove 5 clamped at the end of the connecting groove 9, and the fixed limiting groove 5 passes through the middle of the rotating disk 2, and the diameter of the hole in the middle of the rotating disk 2 is larger than the outer diameter of the fixed limiting groove 5, which is used to fix the connector head; the adjusting part is placed inside the shell 1, and the adjusting part includes a cylinder 12 slidably placed inside the shell 1, and the output end of the cylinder 12 is connected to the connecting groove 9, and an adjusting screw 13 is provided above the cylinder 12 for adjusting the end position of the piston rod of the cylinder 12 when the cylinder 12 is extended.

[0026] It should be noted that the utility model is equipped with a PLC controller. The connector nut and the connector head to be tightened are placed in the fixed limit groove 5 and the screw clamp 4 respectively. When the start switch is pressed, the cylinder 12 drives the fixed limit groove 5 to move toward the screw clamp 4 through the connecting groove 9, so that the two joints are in contact, and the driving component drives the rotating disk 2 to rotate around the fixed limit groove 5. The fixed limit groove 5 limits the connector to prevent it from rotating. The screw clamp 4 drives the nut to rotate around the connector to achieve tightening. The fixed limit groove 5 of irregular shape can be replaced through the clamping structure as needed, and the position of the limit length of the cylinder 12 can be adjusted by adjusting the screw rod 13 to facilitate its adaptation to different processing needs.

[0027] See also Figure 2 As shown, the driving assembly includes a driven gear 8 fixedly mounted on the outside of the rotating disk 2, the outer side of the driven gear 8 is meshedly connected with the driving gear 6, the inside of the housing 1 is fixedly connected with a servo motor 7, and the output end of the servo motor 7 is fixedly connected to the driving gear 6.

[0028] It should be noted that when the utility model drives the rotating disk 2 to rotate, the servo motor 7 drives the driving gear 6 to rotate, and the driving gear 6 drives the rotating disk 2 to rotate through the driven gear 8, so that the rotating disk 2 drives the connecting plate 3 to rotate, and the connecting plate 3 drives the workpiece on the inner side of the screw chuck 4 to rotate. During installation, the center of the workpiece is on the same straight line as the center of the rotating disk 2.

[0029] See also Figure 5 As shown, one end of the fixed limit groove 5 is fixedly connected to two positioning rods 15 for positioning, the top of the positioning rod 15 is provided with a limit slot, the interior of the connecting groove 9 is slidably connected to a limit plug plate 16, and the top of the limit plug plate 16 is rotatably connected to a sliding rod 17.

[0030] It should be noted that, in the utility model, the end of the positioning rod 15 and the bottom of the limiting plug plate 16 are provided with inclined surfaces parallel to each other, and the top of the positioning rod 15 is provided with a limiting slot that cooperates with the limiting plug plate 16. When the positioning rod 15 is installed, the positioning rod 15 pushes the limiting plug plate 16 upward, and when the limiting plug plate 16 moves to the corresponding limiting slot position of the positioning rod 15, under the pressure of the reset spring 18, the limiting plug plate 16 is inserted into the limiting slot, thereby completing the pre-tightening positioning.

[0031] See also Figure 5 As shown, an external threaded cover 19 is provided at the top of the sliding rod 17, and an internal threaded hole matching with the external threaded cover 19 is provided at the top of the connecting groove 9. The sliding rod 17 is slidably connected with the connecting groove 9, and a return spring 18 is sleeved on the outer side of the sliding rod 17 and located above the limiting plug plate 16.

[0032] It should be noted that when the utility model is disassembled, the external threaded cover 19 is unscrewed from the internal threaded hole, and the external threaded cover 19 is lifted up. The external threaded cover 19 pulls up the limit plug plate 16 through the sliding rod 17, so that the limit plug plate 16 is separated from the positioning rod 15. At this time, the fixed limit groove 5 is removed, and when the external threaded cover 19 is separated from the internal threaded hole of the connecting groove 9, the sliding rod 17 and the connecting groove 9 slide up and down, which makes it convenient for the positioning rod 15 to lift the limit plug plate 16 and cooperate with the reset spring 18 to pre-tighten and fix the limit plug plate 16 and the positioning rod 15. After the pre-tightening is completed, the external threaded cover 19 is tightened so that the external threaded cover 19 cooperates with the internal threaded hole, thereby completing the fastening of the sliding rod 17.

[0033] See also Figure 2 , 3 As shown, the interior of the shell 1 is fixedly connected to a limit guide rail 10, the outer side of the limit guide rail 10 is slidably connected to a slide 11, the cylinder 12 is fixedly connected to the top of the slide 11, the output end of the cylinder 12 is fixedly connected to a push plate 14, the push plate 14 is fixedly connected to the connecting groove 9, one end of the adjusting screw rod 13 is rotatably connected to the slide 11, the adjusting screw rod 13 is threadedly connected to the shell 1, the outer side of the adjusting screw rod 13 is rotatably connected to an observation ruler 20, the observation ruler 20 is slidably connected to the inner wall of the shell 1, and the inner wall of the shell 1 is provided with scale lines matching the observation ruler 20.

[0034] It should be noted that, after the fixed limit groove 5 of different lengths and specifications is replaced, the inherent telescopic length of the cylinder 12 may cause the nut to collide with the connector or the gap between the nuts may be too large to be tightened. At this time, the screw rod 13 is adjusted by rotating the adjustment screw rod 13, which is threadedly connected to the housing 1. Under the pushing action of the thread, the adjustment screw rod 13 pushes the cylinder 12 forward or backward. The position of the slide 11 is adjusted according to the observation ruler 20 and the corresponding scale line, so that the position of the extreme position of the cylinder 12 can be adjusted.

[0035] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0036] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0037] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic tightening device for a wiring harness connector nut, characterized in that: include: Housing (1); A screwing portion, the screwing portion is disposed at one end of the housing (1), the screwing portion comprises a rotating disk (2) with a hole in the middle, a driving assembly for driving the rotating disk (2) to rotate is disposed on the outer side of the rotating disk (2), a connecting plate (3) is fixedly connected to the end of the rotating disk (2), and a screwing chuck (4) is fixedly connected to the end of the connecting plate (3) for rotating the connector nut; A fixing part, the fixing part is arranged in the middle of the rotating disk (2), the fixing part comprises a connecting groove (9) arranged inside the shell (1) and a fixing limit groove (5) clamped at the end of the connecting groove (9), and is used to fix the connector head; An adjustment part is arranged inside the housing (1), and comprises a cylinder (12) slidably arranged inside the housing (1), an output end of the cylinder (12) being connected to a connecting groove (9), and an adjustment screw (13) being arranged above the cylinder (12) for adjusting the position of the end of the piston rod of the cylinder (12) when the cylinder (12) is extended.

2. The automatic tightening device for a wire harness connector nut according to claim 1, characterized in that: The driving assembly comprises a driven gear (8) fixedly sleeved on the outside of the rotating disk (2), the outside of the driven gear (8) being meshingly connected with the driving gear (6), the inside of the housing (1) being fixedly connected with a servo motor (7), the output end of the servo motor (7) being fixedly connected with the driving gear (6).

3. The automatic tightening device for a wire harness connector nut according to claim 1, characterized in that: One end of the fixed limiting groove (5) is fixedly connected to two positioning rods (15) used for positioning, and the top of the positioning rod (15) is provided with a limiting slot.

4. The automatic tightening device for a wire harness connector nut according to claim 1, characterized in that: The connection groove (9) is internally slidably connected to a limit plug plate (16), the top of the limit plug plate (16) is rotatably connected to a sliding rod (17), the top of the sliding rod (17) is provided with an external thread cover (19), and the top of the connection groove (9) is provided with an internal thread hole that cooperates with the external thread cover (19).

5. The automatic tightening device for a wire harness connector nut according to claim 4, characterized in that: The sliding rod (17) is slidably connected to the connecting groove (9), and a return spring (18) is sleeved on the outer side of the sliding rod (17) and located above the limiting plug plate (16).

6. The automatic tightening device for a wire harness connector nut according to claim 1, characterized in that: The interior of the housing (1) is fixedly connected to a limit guide rail (10), the outer side of the limit guide rail (10) is slidably connected to a slide table (11), and the cylinder (12) is fixedly connected to the top of the slide table (11).

7. The automatic tightening device for a wire harness connector nut according to claim 6, characterized in that: The output end of the cylinder (12) is fixedly connected with a push plate (14), and the push plate (14) is fixedly connected to the connection groove (9).

8. The automatic tightening device for a wire harness connector nut according to claim 7, characterized in that: One end of the adjusting screw rod (13) is rotatably connected to the slide table (11), the adjusting screw rod (13) is threadedly connected to the housing (1), an outer side of the adjusting screw rod (13) is rotatably connected to an observation ruler (20), the observation ruler (20) is slidably connected to the inner wall of the housing (1), and the inner wall of the housing (1) is provided with scale lines matching the observation ruler (20).

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