Precise clamp for wire harness processing
The wire harness processing fixture with a fully mechanical structure solves the problem of high failure rate of electronic components in existing fixture systems, achieves high reliability and stable wire harness clamping, adapts to various construction environments, and simplifies installation and maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-14
- Publication Date
- 2026-03-17
AI Technical Summary
Existing wire harness processing fixture systems suffer from high failure rates and poor stability due to the complex integration of electronic components. They are difficult to adapt to harsh working conditions and require frequent replacement of sensors and calibration of motor parameters, which affects processing accuracy and reliability.
The wire harness processing fixture adopts a fully mechanical structure. It uses mechanical components such as fixed shafts, linear bearings, push springs and rolling bearings, and is driven by an external push device and a conical push block to achieve the clamping and opening of the wire clamp, avoiding reliance on electronic components.
It improves the reliability and environmental adaptability of the fixture, reduces the impact of electronic component failures, ensures clamping accuracy and stability, and simplifies the installation and maintenance process.
Smart Images
Figure CN224005707U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wire harness processing technology, and in particular to a precision fixture for wire harness processing. Background Technology
[0002] In the field of automotive wiring harness processing, wiring harnesses are a core component of the vehicle's electrical system, and their processing accuracy and reliability directly affect the overall vehicle's electrical performance and safety. Traditional wiring harness processing involves multiple steps, including cable cutting, terminal crimping, waterproof plug assembly, and tape wrapping. Among these, precise clamping and positioning are key technologies to ensure process consistency. In existing technologies, wiring harness processing fixtures mostly adopt electronic drive solutions, relying on the coordinated operation of various electronic components such as sensors, servo motors, pneumatic solenoid valves, and programmable logic controllers (PLCs) to achieve dynamic adjustment of clamping force and position through a closed-loop feedback system.
[0003] However, such highly electronic clamping systems face significant technical bottlenecks in practical applications. First, the complex integration of multiple electronic components leads to a significantly higher system failure rate: photoelectric sensors are susceptible to false triggering due to environmental dust contamination or light interference; pneumatic solenoid valves are prone to jamming or response delays in environments with fluctuating humidity or oil contamination; and servo motors are prone to torque attenuation due to long-term high-frequency operation, resulting in clamping force drift. Second, the inherent lifespan differences of electronic components pose a risk to system stability. For example, logic errors in the PLC program caused by electromagnetic interference and signal distortion caused by sensor aging are difficult to calibrate synchronously, leading to inaccurate clamping actions. Furthermore, harsh operating conditions (such as high and low temperature cycles) exacerbate the performance degradation of electronic components, causing sluggish response or even failure of the clamping mechanism, directly leading to process defects such as cable slippage and terminal crimping misalignment, requiring frequent sensor replacements, motor parameter calibration, and control software upgrades on-site. Utility Model Content
[0004] To address the issues of frequent sensor replacements, motor parameter calibrations, and control software upgrades at construction sites, and to improve the reliability of the fixture and its adaptability to the construction environment, this application provides a precision fixture for wire harness processing.
[0005] The precision fixture for wire harness processing provided in this application adopts the following technical solution:
[0006] A precision fixture for wire harness processing includes a back plate, a base block, a mounting bracket, a first slider, a second slider, and a wire clamp. The base block is connected to the bottom of the back plate. The mounting bracket is slidably disposed on the back plate. A sliding assembly is provided between the back plate and the mounting bracket. An elastic assembly for resetting the mounting bracket is provided between the mounting bracket and the base block. A fixed shaft is connected to the mounting bracket, located between two opposing inner sidewalls of the mounting bracket. The fixed shaft has one at each of its upper and lower ends within the mounting bracket. A first linear bearing and a second linear bearing are respectively connected to the first slider and the second slider. Both the first and second linear bearings pass through the fixed shaft. A slider and a second slider are symmetrically arranged on both sides of the center line of the fixed shaft. A wire clamp is connected to the top of the first slider and the second slider respectively. The two wire clamps are arranged opposite each other. A fixing rod is connected to the inner wall of the mounting bracket. The first slider and the second slider have through holes through which the fixing rod passes. A push spring is sleeved on the fixing rod. The first slider and the second slider each have a first slot for the push spring to be inserted. A fixing block is connected to the first slider and the second slider. Two fixing blocks are respectively provided on the opposite side walls of the first slider and the second slider. A connecting shaft is connected between the two fixing blocks. A rolling bearing is connected to the connecting shaft.
[0007] Preferably, the sliding assembly includes a guide rail and a sliding plate. The guide rail is connected to the mounting frame and is located on the surface of the mounting frame facing the back plate. The guide rail is arranged along the height direction of the mounting frame. Two guide rails are provided on the surface of the mounting frame. The sliding plate is slidably mounted on the guide rail and is connected to the back plate by bolts.
[0008] Preferably, a positioning post is inserted between the back plate and the slide plate, the back plate has a through hole for the positioning post to pass through, and the slide plate has a positioning hole for the positioning post to be inserted.
[0009] Preferably, the elastic component includes a mounting rod, a return spring, a limiting rod, and a limiting block. The limiting rod passes through the base block, and the base block has a connecting hole for the limiting rod to pass through. The limiting rod is arranged in a direction perpendicular to the base block. The end of the limiting rod passing through the base block is connected to the mounting frame. The mounting rod is connected to the base block and is arranged in a direction parallel to the limiting rod. The mounting rod has one on each side of the limiting rod. The return spring is sleeved on the outside of the mounting rod. The base block and the mounting frame both have a second slot for the return spring to be engaged.
[0010] Preferably, a top block is connected to both the first slider and the second slider. The top block is provided at the top and bottom of the opposite sidewalls of the first slider and the second slider, respectively. A positioning block is connected to the mounting bracket. The positioning block is provided at the top and bottom of the mounting bracket, respectively, and the positioning block is located between the two opposite top blocks.
[0011] In summary, this application includes the following beneficial technical effects:
[0012] This utility model provides a precision clamp for wire harness processing. During operation, an external pressing device presses down on the mounting frame, cooperating with a sliding component and an elastic component to adjust the height of the wire clamp. When opening the wire clamp, an external pushing device slowly pushes a conical push block between two rolling bearings, pushing a first slider and a second slider to move opposite directions along a fixed axis to open the wire clamp. When the wire harness passes between the two wire clamps, the external pushing device slowly retracts the conical push block, and a pushing spring pushes the first slider and the second slider to move relative to each other along the fixed axis to close the wire clamp, thus stably clamping the wire harness. This clamp mainly consists of a fixed axis, linear bearings, a pushing spring, and rolling bearings. The fixture is composed of mechanical components such as moving bearings, and is driven by an external pushing device and a conical pusher. The fixture does not rely on electronic components during clamping and opening, so its accuracy and stability are not affected by damage to electronic components. The spring structure is stable in high temperature, low temperature or humid environment, and is more durable in industrial environment. Moreover, the parameters of the mechanical components are fixed, and no complicated debugging is required during installation or maintenance. It is suitable for a variety of engineering needs, thereby improving the problem of frequent sensor replacement, motor parameter calibration and control software upgrades on construction sites, and improving the reliability of the fixture and its adaptability to the construction environment. Attached Figure Description
[0013] Figure 1 This is a first-view view of the precision fixture for wire harness processing in the embodiments of this application;
[0014] Figure 2 This is a second-view view of the precision fixture for wire harness processing in the embodiments of this application;
[0015] Figure 3 This is a side view of a precision fixture for wire harness processing in an embodiment of this application.
[0016] Explanation of reference numerals in the attached drawings: 1. Back plate; 11. Positioning post; 2. Base block; 3. Mounting bracket; 31. Fixed shaft; 32. Fixed rod; 321. Push spring; 33. Positioning block; 4. First slider; 41. First linear bearing; 42. Top block; 5. Second slider; 51. Second linear bearing; 6. Wire clamp; 7. Sliding assembly; 71. Guide rail; 72. Slide plate; 8. Elastic assembly; 81. Mounting rod; 82. Return spring; 83. Limiting rod; 84. Limiting block; 9. Fixed block; 91. Connecting shaft; 911. Rolling bearing. Detailed Implementation
[0017] To enable those skilled in the art to better understand the present invention, the solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.
[0018] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation or specific orientation structure and operation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral 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 a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0019] This application discloses a precision fixture for wire harness processing. (Refer to...) Figure 1 , Figure 2 and Figure 3The precision fixture for wire harness processing includes a back plate 1, a base block 2, a mounting frame 3, a first slider 4, a second slider 5, and a wire clamp 6. The base block 2 is connected to the bottom of the back plate 1. The mounting frame 3 is slidably mounted on the back plate 1. A sliding assembly 7 is provided between the back plate 1 and the mounting frame 3. An elastic assembly 8 for resetting the mounting frame 3 is provided between the mounting frame 3 and the base block 2. A fixed shaft 31 is connected to the mounting frame 3. The fixed shaft 31 is located between two opposing inner sidewalls of the mounting frame 3. The fixed shaft 31 has a fixed shaft at its upper and lower ends within the mounting frame 3. A first linear bearing 41 and a second linear bearing 51 are respectively connected to the first slider 4 and the second slider 5. Both the first linear bearing 41 and the second linear bearing 51 pass through the fixed shaft 31. Slider 4 and slider 5 are symmetrically arranged on both sides of the centerline of fixed shaft 31. One wire clamp 6 is connected to the top of the first slider 4 and the second slider 5 respectively. The two wire clamps 6 are arranged opposite each other. A fixing rod 32 is connected to the inner wall of the mounting bracket 3. The first slider 4 and the second slider 5 have through holes through which the fixing rod 32 passes. A push spring 321 is sleeved on the fixing rod 32. The first slider 4 and the second slider 5 each have a first slot for the push spring 321 to be inserted. A fixing block 9 is connected to the first slider 4 and the second slider 5. Two fixing blocks 9 are respectively provided on the opposite side walls of the first slider 4 and the second slider 5. A connecting shaft 91 is connected between the two fixing blocks 9. A rolling bearing 911 is connected to the connecting shaft 91.
[0020] The guide structure adopts a double fixed shaft 31 and linear bearing, and the push spring 321 on the fixed rod 32 forces the first slider 4 and the second slider 5 to perform mirror symmetrical movement. This structure ensures that the two wire clamps 6 always close synchronously along the predetermined trajectory through mechanical constraints, and the clamping center deviation is less than 0.05mm, which effectively guarantees the center accuracy of the wire harness when the wire clamps 6 clamp the wire harness.
[0021] The fixture is mainly composed of a fixed shaft 31, linear bearings, push springs 321 and rolling bearings 911, forming a fully mechanical structure. It is driven by an external push device and a conical push block. The fixture does not rely on electronic components during clamping and opening, so its accuracy and stability are not affected by damage to electronic components. The spring structure is stable in high temperature, low temperature or humid environments, and is more durable in industrial environments. Moreover, the parameters of the mechanical components are fixed, and no complicated debugging is required during installation or maintenance, making it suitable for a variety of engineering needs.
[0022] The sliding assembly 7 includes a guide rail 71 and a slide plate 72. The guide rail 71 is connected to the mounting frame 3 and is located on the surface of the mounting frame 3 facing the back plate 1. The guide rail 71 is set along the height direction of the mounting frame 3. Two guide rails 71 are provided on the surface of the mounting frame 3. The slide plate 72 is slidably mounted on the guide rail 71. The slide plate 72 is connected to the back plate 1 by bolts. Through the cooperation of the guide rail 71 and the slide plate 72, the mounting frame 3 is slidably set on the back plate 1. During operation, the mounting frame 3 can be pushed down by an external pressing device and raised in conjunction with the elastic component 8 below, realizing the adjustment of the height of the wire clamp 6.
[0023] A positioning post 11 is inserted between the back plate 1 and the slide plate 72. The back plate 1 has a through hole for the positioning post 11 to pass through, and the slide plate 72 has a positioning hole for the positioning post 11 to be inserted. Since the slide plate 72 and the back plate 1 are connected by multiple bolts, the positioning post 11 can be inserted into the slide plate 72 by first passing through the back plate 1, which can position the back plate 1 and the slide plate 72, making the bolt connection simpler.
[0024] The elastic component 8 includes a mounting rod 81, a return spring 82, a limiting rod 83, and a limiting block 84. The limiting rod 83 passes through the base block 2, and the base block 2 has a connecting hole for the limiting rod 83 to pass through. The limiting rod 83 is arranged in a direction perpendicular to the base block 2. The end of the limiting rod 83 passing through the base block 2 is connected to the mounting frame 3. The mounting rod 81 is connected to the base block 2 and is arranged in a direction parallel to the limiting rod 83. The mounting rod 81 has one on each side of the limiting rod 83. The return spring 82 is sleeved on the outside of the mounting rod 81. The base block 2 and the mounting frame 3 both have a second slot for the return spring 82 to be inserted.
[0025] When the height of the wire clamp 6 is adjusted, the external pressing device presses down the mounting bracket 3 to move. Due to the limiting action of the limiting rod 83, the mounting bracket 3 always moves along the length direction of the limiting rod 83. When the pressing device releases force, the return spring 82 uses its elastic force to push the mounting bracket 3 to rise. When the mounting bracket 3 rises to the limit position, the limiting block 84 can abut against the base block 2 to prevent the mounting bracket 3 from disengaging from the clamp structure, thereby realizing the adjustment of the height of the wire clamp 6.
[0026] A top block 42 is connected to both the first slider 4 and the second slider 5. The top block 42 is provided at the top and bottom of the opposite sidewalls of the first slider 4 and the second slider 5, respectively. A positioning block 33 is connected to the mounting bracket 3. The positioning block 33 is provided at the top and bottom of the mounting bracket 3, respectively. The positioning block 33 is located between the two opposite top blocks 42. The hard limit design of the top block 42 and the positioning block 33 further locks the slider stroke and avoids the clamping force drift caused by overload.
[0027] The implementation principle of a precision clamp for wire harness processing according to an embodiment of this application is as follows: During operation, the mounting frame 3 is pressed down by an external pressing device and cooperates with the sliding component 7 and the elastic component 8 to adjust the height of the wire clamp 6. When the wire clamp 6 is opened, the tapered push block is slowly pushed by an external pushing device into the space between two rolling bearings 911, pushing the first slider 4 and the second slider 5 to move in opposite directions along the fixed axis 31 to open the wire clamp 6. When the wire harness passes between the two wire clamps 6, the tapered push block is slowly withdrawn by the external pushing device, and the first slider 4 and the second slider 5 are pushed to move relative to each other along the fixed axis 31 by the pushing spring 321 to close the wire clamp 6, so that the wire clamp 6 can stably clamp the wire harness.
[0028] Finally, it should be noted that the above description is only a preferred embodiment of this utility model, and the protection scope of this utility model is not limited to the above embodiments. All technical solutions within the scope of this utility model's concept are within the protection scope of this utility model. It should be pointed out that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. A precision jig for harness processing, characterized by: The utility model provides a kind of cable clamp, including backboard (1), base block (2), mounting frame (3), first slider (4), second slider (5) and wire clamp (6), the base block (2) is connected to backboard (1) bottom, the mounting frame (3) is slidably arranged on backboard (1), sliding assembly (7) is arranged between backboard (1) and mounting frame (3), elastic component (8) for resetting mounting frame (3) is arranged between mounting frame (3) and base block (2), mounting frame (3) is connected with fixed shaft (31), fixed shaft (31) is located between the two inner side walls of mounting frame (3) opposite, the upper and lower ends of fixed shaft (31) in mounting frame (3) are equipped with one respectively, first linear bearing (41) and second linear bearing (51) are respectively connected on first slider (4) and second slider (5), first linear bearing (41) and second linear bearing (51) are all worn on fixed shaft (31), first slider (4) and second slider (5) are respectively arranged symmetrically on the two sides of the center line of fixed shaft (31), wire clamp (6) is respectively connected with one on the top of first slider (4) and second slider (5), two wire clamps (6) are oppositely arranged, the inner wall of mounting frame (3) is connected with fixed rod (32), the through hole that fixed rod (32) passes through is opened in first slider (4) and second slider (5), push spring (321) is sleeved on fixed rod (32), first slider (4) and second slider (5) are all equipped with the first slot that push spring (321) is inserted, fixed block (9) is connected on first slider (4) and second slider (5), two fixed blocks (9) are respectively provided on the opposite side wall of first slider (4) and second slider (5), connecting shaft (91) is connected between two fixed blocks (9), rolling bearing (911) is connected on connecting shaft (91).
2. The precision clamp for harness processing according to claim 1, characterized by: The sliding assembly (7) includes guide rail (71) and slide plate (72), the guide rail (71) is connected to the mounting frame (3), the guide rail (71) is located on the surface of the mounting frame (3) facing the backboard (1), the guide rail (71) is arranged along the height direction of the mounting frame (3), the surface of the mounting frame (3) is provided with two guide rails (71), the slide plate (72) is slidably installed on the guide rail (71), and the slide plate (72) and the backboard (1) are connected by bolts.
3. The precision clamp for harness processing according to claim 2, characterized in that: The positioning column (11) is inserted between the backboard (1) and the slide plate (72), the perforation is opened in the backboard (1) for the positioning column (11) to pass through, and the positioning hole is opened in the slide plate (72) for the positioning column (11) to be inserted.
4. The precision clamp for harness processing according to claim 1, characterized by: The elastic assembly (8) comprises a mounting rod (81), a reset spring (82), a limiting rod (83) and a limiting block (84), the limiting rod (83) is arranged on the base block (2), the base block (2) is provided with a connecting hole for the limiting rod (83) to pass through, the limiting rod (83) is arranged in a direction perpendicular to the base block (2), the end of the limiting rod (83) passing through the base block (2) is connected with the mounting frame (3), the mounting rod (81) is connected to the base block (2), the mounting rod (81) is arranged in a direction parallel to the limiting rod (83), the mounting rod (81) is provided with one on each side of the limiting rod (83), the reset spring (82) is sleeved outside the mounting rod (81), and the base block (2) and the mounting frame (3) are both provided with a second clamping groove for clamping the reset spring (82).
5. The precision clamp for harness processing according to claim 1, characterized by: The first sliding block (4) and the second sliding block (5) are both connected with a top block (42), the top block (42) is provided with one on the top and the bottom of the opposite side walls of the first sliding block (4) and the second sliding block (5), the mounting frame (3) is connected with a positioning block (33), the positioning block (33) is provided with one on the top and the bottom of the mounting frame (3), and the positioning block (33) is located between the two opposite top blocks (42).