CN112414868A - Wire harness testing device - Google Patents
Wire harness testing device Download PDFInfo
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- CN112414868A CN112414868A CN202011244431.4A CN202011244431A CN112414868A CN 112414868 A CN112414868 A CN 112414868A CN 202011244431 A CN202011244431 A CN 202011244431A CN 112414868 A CN112414868 A CN 112414868A
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- wire harness
- lifting
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- belt wheel
- belt
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/20—Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/26—Investigating twisting or coiling properties
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
- G01N3/38—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by electromagnetic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0005—Repeated or cyclic
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0021—Torsional
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0023—Bending
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- Electromagnetism (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a wire harness folding endurance testing device, which comprises: a support body; the bending test assembly comprises a bending rod for simulating the bending motion of the wire harness; the bending rod is fixedly arranged on the supporting body, and a wire harness to be tested is fixed on the bending rod for bending test; the bending wear testing assembly comprises a testing stand column fixedly arranged on the supporting body and a wiring harness disc which is rotatably arranged on the supporting body and is positioned above the testing stand column; and the wire harness to be tested is fixed between the wire harness disc and the test stand column and is matched with the wire harness disc and the test stand column to perform bending wear test. The wire harness testing device is simple in structure and convenient to operate. The invention adopts simple action to fully test the bending, torsion, bending and abrasion of the wire harness. The structure of the contact part of the test upright column on the fixed workbench and the inner wire harness of the robot is kept consistent, and the test upright column can be changed according to different robots, so that the test can reflect real torsion and abrasion conditions.
Description
Technical Field
The invention relates to the field of wire harness processing, in particular to a wire harness testing device.
Background
In the past, the bending resistance and bending resistance of the wire harness are basically tested by artificial bending, but the bending resistance and bending resistance are high in labor waste and low in efficiency.
Moreover, some existing wire harness testing devices can only test a single wire harness, but the inner wire harness of the robot is subjected to bending, abrasion, bending and the like in actual movement, and comprehensive testing is needed.
Disclosure of Invention
The purpose of the invention is as follows: aiming at the defects, the invention provides the wire harness testing device which can make the wire harness fully bend, twist, bend and wear, has simple structure and convenient operation, replaces the manual folding endurance testing mode, saves manpower and time, and reduces the limitation brought by manual testing.
The technical scheme is as follows:
a wire harness testing device comprising:
a support body;
the bending test assembly comprises a bending rod for simulating the bending motion of the wire harness; the bending rod is fixedly arranged on the supporting body, and a wire harness to be tested is fixed on the bending rod for bending test;
the bending wear testing assembly comprises a testing stand column fixedly arranged on the supporting body and a wiring harness disc which is rotatably arranged on the supporting body and is positioned above the testing stand column; and the wire harness to be tested is fixed between the wire harness disc and the test stand column and is matched with the wire harness disc and the test stand column to perform bending wear test.
A lifting component is arranged on the supporting body; one end of the bending rod is rotatably connected with the lifting assembly, the other end of the bending rod is rotatably connected with the supporting body, and the bending rod is driven by the lifting movement of the lifting assembly to simulate the bending movement of the wire harness.
The bending test assembly further comprises a movable workbench, and a guide rod corresponding to the lifting assembly is further arranged on the supporting body; the movable workbench is fixedly arranged on the lifting assembly and is arranged on the guide rod in a sliding manner; and one end of the bending rod is rotatably connected with the movable workbench, the other end of the bending rod is rotatably connected with the support body, and the movable workbench drives the bending rod to simulate the bending motion of the wire harness along with the lifting motion of the lifting assembly.
The two guide rods are respectively fixed on the supporting body and positioned at two sides of the lifting assembly.
The bending rod comprises two fixing rods which are rotatably connected with each other, the lower end of the bending rod is rotatably connected with the movable workbench, and the upper end of the bending rod is rotatably connected with the supporting body above the movable workbench.
The lifting assembly comprises a synchronous belt wheel, and the synchronous belt wheel comprises a lifting motor, a driving lifting belt wheel, a driven lifting belt wheel and a lifting synchronous belt; the lifting motor is fixedly arranged at the lower part of the supporting body, and the output shaft of the lifting motor is provided with the driving lifting belt wheel; the driven lifting belt wheel is arranged at a corresponding position on the upper part of the support body through a rotating shaft; the driven lifting belt wheel is connected with the driving lifting belt wheel through the lifting synchronous belt; the movable workbench is fixed on the lifting synchronous belt and is arranged on the guide rod in a sliding mode.
The driven lifting belt wheel and the driving lifting belt wheel are both toothed belt wheels, and the lifting synchronous belt is a lifting synchronous toothed belt; the driven lifting belt wheel and the driving lifting belt wheel are respectively meshed with the lifting synchronous toothed belt;
the movable workbench is provided with a tooth-shaped groove corresponding to the lifting synchronous tooth-shaped belt, is meshed with the lifting synchronous tooth-shaped belt through the tooth-shaped groove and can move up and down along with the lifting synchronous tooth-shaped belt.
A linear bearing fixing piece is fixedly arranged on the back surface of the movable workbench, and a through hole corresponding to the guide rod and a tooth-shaped groove corresponding to the lifting synchronous tooth-shaped belt are formed in the linear bearing fixing piece; the linear bearing fixing piece is matched with the lifting synchronous toothed belt through a toothed groove of the linear bearing fixing piece and can move up and down along with the lifting synchronous toothed belt; and a linear bearing is fixedly arranged in the through hole on the linear bearing fixing piece, and the linear bearing is sleeved outside the guide rod.
An upper end belt wheel bracket is fixedly arranged at the upper part of the supporting body, and a lower end belt wheel bracket corresponding to the upper end belt wheel bracket is fixedly arranged at the lower part of the supporting body; a pulley shaft is arranged on the upper end pulley bracket in a matching way through a bearing, and the driven lifting pulley is arranged on the pulley shaft; the lifting motor is transversely and fixedly installed on the lower end belt wheel support, and the driving lifting belt wheel is fixedly installed on a motor shaft of the lifting motor.
The lifting assembly comprises a ball screw; the ball screw comprises a screw rod and a nut, the screw rod is arranged on the support body, and one end of the screw rod is fixedly connected with an output shaft of a motor fixedly arranged on the support body; the nut is installed in the screw rod in a matching mode, the movable workbench is fixedly connected with the nut and is installed on the guide rod in a sliding mode.
Equal fixed mounting has upper and lower proximity switch on the supporter, wherein go up proximity switch be located buckle the pole with the installation department of supporter, lower proximity switch is located when buckling the pole and straightening the mobile workbench lower extreme position.
The wire harness disc is installed on the movable workbench through a bearing and at a position corresponding to the test stand column, and the wire harness disc is controlled to rotate through a motor fixedly connected with the wire harness disc.
Rotating belt wheels are arranged at four corners of the movable workbench through bearings, wherein one rotating belt wheel is a driving rotating belt wheel, and the other rotating belt wheels are driven rotating belt wheels; a rotating belt wheel motor is arranged on the driving rotating belt wheel, an output shaft of the rotating belt wheel motor is fixedly connected with the driving rotating belt wheel, and the driving rotating belt wheel is connected with other driven rotating belt wheels through a synchronous belt and transmits torque; and the wiring harness disk is fixedly arranged below each rotating belt wheel.
Two symmetrical waist-shaped grooves are formed in the middle of the movable workbench, a rotating idler wheel is rotatably mounted in each waist-shaped groove through a fine adjustment bearing, and the synchronous belt penetrates through the rotating idler wheel; and finely adjusting the position of the rotating idler wheel by sliding the fine adjustment bearing in the waist-shaped groove, and further tensioning the synchronous belt.
All the rotating belt wheels are toothed belt wheels, and the synchronous belt is a synchronous toothed belt; the driving rotating belt wheel is connected with the other driven rotating belt wheels through the synchronous toothed belt and is meshed and matched with the synchronous toothed belt.
And a proximity switch is fixedly arranged on the support body on the driving rotation side, a bulge is arranged on the side surface of the driving rotation belt wheel, the proximity switch detects the bulge, and when the bulge is detected, the proximity switch is determined to be the zero point position of the wire harness disk.
The test stand column is designed according to each part to be tested in practical application.
The wire harness disc is provided with a wire harness mounting hole, and the center of the test stand column is provided with a test hole corresponding to the wire harness mounting hole of the wire harness disc.
And a plurality of harness mounting holes are uniformly and symmetrically formed in the harness plate.
The bending wear testing assembly further comprises a wire harness mounting plate, the wire harness mounting plate is fixedly mounted on the supporting body, and the testing stand column is fixedly mounted on the wire harness mounting plate.
The supporting body comprises a horizontally placed bottom frame and a supporting frame vertically and fixedly installed on the bottom frame, and an inclined rod is installed between the supporting frame and the bottom frame to form a triangular structure.
Compared with the prior art, the invention has the following beneficial effects:
1. the wire harness testing device is simple in structure and convenient to operate.
2. The invention adopts simple action to fully test the bending, torsion, bending and abrasion of the wire harness.
3. The structure of the contact part of the test upright column on the fixed workbench and the inner wire harness of the robot is kept consistent, and the test upright column can be changed according to different robots, so that the test can reflect real torsion and abrasion conditions.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a wire harness bending test assembly according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a wire harness bend wear test assembly in an embodiment of the present invention;
FIG. 4 is a partially schematic illustration of a wire harness bend wear test assembly in an embodiment of the present invention;
fig. 5 is a schematic diagram of the installation form of the rotating pulley synchronous belt in the embodiment of the invention.
The figure includes: 1. the device comprises a supporting rack, 2, a bending wear testing component, 3, a bending testing component, 4, a synchronous pulley component, 5, a movable workbench, 6, a connecting rod, 7, an L-shaped fixing plate, 8, a linear guide rod, 9, an upper end pulley bracket, 10, a driven lifting pulley, 11, a pulley shaft, 12, an upper fixing ring, 13, an upper proximity switch, 14, an L-shaped fixing plate, 15, a linear bearing fixing part, 16, a linear guide rod, 17, a lower fixing ring, 18, a lower proximity switch, 19, a lower end pulley bracket, 20, a motor shaft, 21, a driving lifting pulley, 22, a lifting motor, 23, a wire harness mounting plate, 24, a testing upright post, 25, a wire harness plate, 26, a driven rotating pulley, 27, a rotating pulley motor, 28, a proximity switch bracket, 29, a proximity switch, 30, a driving rotating pulley, 31, a rotating idler, 32 and a synchronous cog belt.
Detailed Description
The invention is further elucidated with reference to the drawings and the embodiments.
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention; as shown in fig. 1, the wire harness testing apparatus of the present invention includes a support frame 1, a bending wear testing member 2, a bending testing member 3, and a synchronous pulley member 4. Wherein, support frame 1 includes the chassis that the level was placed and vertical fixed mounting installs the support frame on the chassis, installs the down tube between support frame and chassis, forms the triangle structure to further consolidate.
FIG. 2 is a schematic structural diagram of a wire harness bending test assembly according to an embodiment of the present invention; as shown in fig. 2, an upper pulley bracket 9 is fixedly installed on the upper portion of the support frame 1, a lower pulley bracket 19 corresponding to the upper pulley bracket 9 is fixedly installed on the lower portion of the support frame 1, a pulley shaft 11 is arranged on the upper pulley bracket 9 in a matched manner through a bearing, a driven lifting pulley 10 is installed on the pulley shaft 11, and the two pulleys are connected through a key to transmit rotation; a lifting motor 22 is transversely and fixedly arranged on the lower end belt wheel bracket 19, and a driving lifting belt wheel 21 is arranged on a motor shaft of the lifting motor 22; the motor shaft 20 of the lifting motor 22 is provided with a hole and a key slot, and is fixedly connected with the driving lifting belt wheel 21 through a flat key, and the tail end of the motor shaft 20 is also provided with a thread and is fixed through a nut. The driven lifting belt wheel 10 and the driving lifting belt wheel 21 are both toothed belt wheels, and the driven lifting belt wheel 10 and the driving lifting belt wheel 21 are connected through a lifting synchronous toothed belt and are respectively meshed and matched with the lifting synchronous toothed belt to form a synchronous belt wheel assembly 4. The lifting motor 22 drives the driving lifting belt wheel 21 to rotate through the motor shaft 20 thereof, and then the up-and-down motion of the lifting synchronous toothed belt between the driving lifting belt wheel and the driven lifting belt wheel 10 is realized through the matching between the driving lifting belt wheel and the driven lifting belt wheel.
In the invention, through holes are respectively arranged on the upper end belt pulley support 9 and the lower end belt pulley support 19 at two sides of the synchronous belt pulley assembly 4, and two ends of two linear guide rods are respectively arranged in the corresponding through holes arranged on the upper end belt pulley support 9 and the lower end belt pulley support 19 at two sides of the synchronous belt pulley assembly 4 through bolt locking.
As shown in fig. 2 and 3, the bending test assembly 3 includes a movable table 5, a connecting rod 6 and an L-shaped fixing plate. A linear bearing fixing piece 15 is fixed on the back of the movable workbench 5 through a screw, and a through hole corresponding to the linear guide shaft and a tooth-shaped groove corresponding to the lifting synchronous tooth-shaped belt are formed in the linear bearing fixing piece 15; the linear bearing fixing piece 15 is matched with the lifting synchronous toothed belt through a toothed groove to realize fixed connection and can move up and down along with the lifting synchronous toothed belt; linear bearings are fixedly arranged in through holes in the linear bearing fixing pieces 15 through screws, and the linear bearings are sleeved on the linear guide rods 8 and 16 and play a role in supporting and guiding the movable workbench 5. L- shaped fixing plates 7 and 14 are respectively and fixedly arranged on two sides of the supporting frame above the movable workbench 5, two sides of the movable workbench 5 are respectively hinged with a connecting rod 6, and the connecting rod 6 is formed by hinging two sections of straight rods; the other end of the connecting rod 6 is hinged with the tail end of the L-shaped fixing plate.
As shown in fig. 3 and 4, bearing holes are formed in four corners of the movable table 5, a rotating shaft is mounted in each bearing hole through a bearing, a rotating belt wheel is mounted on each rotating shaft, all the rotating belt wheels are toothed belt wheels, one of the rotating belt wheels is a driving rotating belt wheel 30, and the other rotating belt wheels are driven rotating belt wheels 26; the driving rotating belt wheel 30 is provided with a rotating belt wheel motor 27, the output shaft of the rotating belt wheel motor 27 is fixedly connected with the rotating shaft of the driving rotating belt wheel 30, and the driving rotating belt wheel 30 is connected with all the other driven rotating belt wheels 26 through a synchronous toothed belt 32 and is meshed and matched with the synchronous toothed belt 32. Two symmetrical waist-shaped grooves are formed in the middle of the movable workbench 5, the rotating idle wheel 31 is rotatably mounted in the waist-shaped grooves through a fine adjustment bearing, and the fine adjustment bearing can slide in the waist-shaped grooves, so that fine adjustment sliding of the rotating idle wheel 31 at a certain position in the waist-shaped grooves can be realized; thereby tensioning the timing belt 32 by rotating the idle pulley 31 as shown in fig. 5. A wiring harness disk 25 is arranged below the driving rotary belt wheel 30 and all the driven rotary belt wheels 26 in a threaded fit manner; the wire harness disk 25 is of a square structure, and wire harness mounting holes are formed in the edge positions of four sides of the wire harness disk 25; in the invention, the harness plate 25 may also be of other symmetrical or asymmetrical structures, and a plurality of harness mounting holes are uniformly and symmetrically arranged on the harness plate 25. Threads are arranged below the rotating shafts of all the rotating belt wheels and are matched with the rotating belt wheels through nuts so as to fixedly install the rotating belt wheels and the wire harness disc 25 and limit the axial movement of the rotating belt wheels and the wire harness disc. A proximity switch holder 28 is fixedly attached to the movable table 5, and a proximity switch 29 is attached to the proximity switch holder 28.
In the invention, each linear guide shaft is provided with an upper fixing ring 12 and a lower fixing ring 17, and the upper fixing ring 12 and the lower fixing ring 17 are hoop-shaped fixing rings and are tightly held and arranged on linear guide rods; the upper fixing ring 12 is disposed at the position of the L-shaped fixing plate 7, and the lower fixing ring 17 is disposed at the position of the lower end of the movable table 5 when the connecting rod 6 is straightened. Through holes are provided in both the upper fixing ring 12 and the lower fixing ring 17, and an upper proximity switch 13 and a lower proximity switch 18 are installed, respectively. As can be seen from the above, the maximum distance of the up-and-down movement of the movable table 5 is smaller than the maximum length of the link 6.
In the present invention, in order to reduce the weight of the movable table 5 and reduce energy consumption, a plurality of lightening holes are dug in the movable table 5.
In the invention, a test board can be independently arranged, the test board is fixedly arranged on the support frame, a plurality of bearing holes are formed in the test board, a rotating shaft is arranged in each bearing hole through a bearing, a rotating belt wheel is arranged on each rotating shaft, all the rotating belt wheels are toothed belt wheels, one of the rotating belt wheels is a driving rotating belt wheel 30, and the other rotating belt wheels are driven rotating belt wheels 26; the driving rotating belt wheel 30 is provided with a rotating belt wheel motor 27, the output shaft of the rotating belt wheel motor 27 is fixedly connected with the rotating shaft of the driving rotating belt wheel 30, and the driving rotating belt wheel 30 is connected with all the other driven rotating belt wheels 26 through a synchronous toothed belt 32 and is meshed and matched with the synchronous toothed belt 32. Two symmetrical waist-shaped grooves are formed in the middle of the test board, a rotating idler pulley 31 is rotatably mounted in each waist-shaped groove through a fine adjustment bearing, and the fine adjustment bearings can slide in the waist-shaped grooves, so that fine adjustment sliding of the rotating idler pulley 31 at a certain position in each waist-shaped groove can be realized; thereby, the timing belt 32 is tensioned by the rotation idle pulley 31, and the harness disk 25 is mounted below the driving rotary pulley 30 and all the driven rotary pulleys 26 by screw-fitting.
As shown in fig. 3, the bending wear testing assembly 2 includes a harness mounting plate 23, a testing upright column 24 and the harness tray 25, the harness mounting plate 23 is fixed on the belt wheel bracket 19 through screws, the testing upright column 24 is fixedly mounted on the harness mounting plate 23 through bolts, and the testing upright column 24 is designed according to each part to be tested on the actual robot and is used for simulating the rotation and friction of the harness around the part in the actual use working condition; the center of the test upright post 24 is provided with a test hole corresponding to the wiring harness mounting hole of the wiring harness disk 25. In the present invention, a plurality of lightening holes are formed in the harness mounting plate 23 in order to reduce weight.
The belt wheel is adopted to rotate to perform bending test on the wire harness, meanwhile, the wire harness is in full contact with the test stand column on the fixed workbench, and the wire harness is subjected to torsion and abrasion test through up-and-down movement of the movable workbench and back-and-forth rotation of the belt wheel.
In the wire harness folding endurance test part, a wire harness is fixed on a connecting rod 6, and a lifting synchronous belt wheel is driven to rotate by a lifting motor 22, so that a movable workbench 5 is driven to move up and down; when the left connecting rod 6 and the right connecting rod 6 move up and down on the workbench 5, the two sections of straight rods rotate around the hinged point, and then the opening and closing angle between the two sections of straight rods is continuously changed, so that the wiring harness on the fixed connecting rod 6 is bent along with the change of the opening and closing angle, and the test is carried out. The proximity switch 18 is a limit for the lowest position of the workbench, and also serves as a zero point of the stroke, and gives an initial signal to the lifting motor 22 to control the number of turns of the rotation of the lifting motor 22 to control the stroke of the workbench 5, so that the opening and closing angle between the connecting rods 6, namely the bending angle of the wire harness, is controlled.
In the bending wear resistance test part of the wire harness, the upper part of the wire harness is fixedly bound in a wire harness mounting hole formed in a wire harness disc 25 below a rotary belt wheel 26, and the lower part of the wire harness is bound on a test stand column 24; the rotating belt wheel motor 27 drives the driving rotating belt wheel 30 to rotate, and the rotating motion is transmitted to other driven rotating belt wheels 26 through the synchronous cog belt 32, so that the wire harness disc 25 below each rotating belt wheel is driven to rotate, and the wire harness bound on the wire harness disc is bent. The rotating idler 31 can be finely adjusted in the kidney-shaped groove of the moving table 5 to tension the timing belt 32. A protrusion is provided at a side of the driving pulley 30, and the proximity switch 29 detects the protrusion and determines it as an initial angle of the harness tray 25, i.e., a zero point position, when the protrusion is detected, and changes the degree of bending of the harness bound to the harness tray 25 by controlling the number of turns of the rotary pulley motor 27.
Although the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the details of the foregoing embodiments, and various equivalent changes (such as number, shape, position, etc.) may be made to the technical solution of the present invention within the technical spirit of the present invention, and these equivalent changes are all within the protection scope of the present invention.
Claims (21)
1. A wire harness testing device is characterized in that: the method comprises the following steps:
a support body;
the bending test assembly comprises a bending rod for simulating the bending motion of the wire harness; the bending rod is fixedly arranged on the supporting body, and a wire harness to be tested is fixed on the bending rod for bending test;
the bending wear testing assembly comprises a testing stand column fixedly arranged on the supporting body and a wiring harness disc which is rotatably arranged on the supporting body and is positioned above the testing stand column; and the wire harness to be tested is fixed between the wire harness disc and the test stand column and is matched with the wire harness disc and the test stand column to perform bending wear test.
2. The wire harness testing device according to claim 1, characterized in that: a lifting component is arranged on the supporting body; one end of the bending rod is rotatably connected with the lifting assembly, the other end of the bending rod is rotatably connected with the supporting body, and the bending rod is driven by the lifting movement of the lifting assembly to simulate the bending movement of the wire harness.
3. The wire harness testing device according to claim 2, characterized in that: the bending test assembly further comprises a movable workbench, and a guide rod corresponding to the lifting assembly is further arranged on the supporting body; the movable workbench is fixedly arranged on the lifting assembly and is arranged on the guide rod in a sliding manner; and one end of the bending rod is rotatably connected with the movable workbench, the other end of the bending rod is rotatably connected with the support body, and the movable workbench drives the bending rod to simulate the bending motion of the wire harness along with the lifting motion of the lifting assembly.
4. The wire harness testing device according to claim 3, characterized in that: the two guide rods are respectively fixed on the supporting body and positioned at two sides of the lifting assembly.
5. The wire harness testing device according to claim 3, characterized in that: the bending rod comprises two fixing rods which are rotatably connected with each other, the lower end of the bending rod is rotatably connected with the movable workbench, and the upper end of the bending rod is rotatably connected with the supporting body above the movable workbench.
6. The wire harness testing device according to claim 5, wherein: the lifting assembly comprises a synchronous belt wheel, and the synchronous belt wheel comprises a lifting motor, a driving lifting belt wheel, a driven lifting belt wheel and a lifting synchronous belt; the lifting motor is fixedly arranged at the lower part of the supporting body, and the output shaft of the lifting motor is provided with the driving lifting belt wheel; the driven lifting belt wheel is arranged at a corresponding position on the upper part of the support body through a rotating shaft; the driven lifting belt wheel is connected with the driving lifting belt wheel through the lifting synchronous belt; the movable workbench is fixed on the lifting synchronous belt and is arranged on the guide rod in a sliding mode.
7. The wire harness testing device according to claim 6, wherein: the driven lifting belt wheel and the driving lifting belt wheel are both toothed belt wheels, and the lifting synchronous belt is a lifting synchronous toothed belt; the driven lifting belt wheel and the driving lifting belt wheel are respectively meshed with the lifting synchronous toothed belt;
the movable workbench is provided with a tooth-shaped groove corresponding to the lifting synchronous tooth-shaped belt, is meshed with the lifting synchronous tooth-shaped belt through the tooth-shaped groove and can move up and down along with the lifting synchronous tooth-shaped belt.
8. The wire harness testing device according to claim 7, wherein: a linear bearing fixing piece (15) is fixedly installed on the back surface of the movable workbench, and a through hole corresponding to the guide rod and a tooth-shaped groove corresponding to the lifting synchronous tooth-shaped belt are formed in the linear bearing fixing piece (15); the linear bearing fixing piece (15) is matched with the lifting synchronous toothed belt through a toothed groove of the linear bearing fixing piece and can move up and down along with the lifting synchronous toothed belt; and a linear bearing is fixedly arranged in the through hole on the linear bearing fixing piece (15), and the linear bearing is sleeved outside the guide rod.
9. The wire harness testing device according to claim 6, wherein: an upper end belt wheel bracket is fixedly arranged at the upper part of the supporting body, and a lower end belt wheel bracket corresponding to the upper end belt wheel bracket is fixedly arranged at the lower part of the supporting body; a pulley shaft is arranged on the upper end pulley bracket in a matching way through a bearing, and the driven lifting pulley is arranged on the pulley shaft; the lifting motor is transversely and fixedly installed on the lower end belt wheel support, and the driving lifting belt wheel is fixedly installed on a motor shaft of the lifting motor.
10. The wire harness testing device according to claim 3, characterized in that: the lifting assembly comprises a ball screw; the ball screw comprises a screw rod and a nut, the screw rod is arranged on the support body, and one end of the screw rod is fixedly connected with an output shaft of a motor fixedly arranged on the support body; the nut is installed in the screw rod in a matching mode, the movable workbench is fixedly connected with the nut and is installed on the guide rod in a sliding mode.
11. The wire harness testing device according to claim 3, characterized in that: equal fixed mounting has upper and lower proximity switch on the supporter, wherein go up proximity switch be located buckle the pole with the installation department of supporter, lower proximity switch is located when buckling the pole and straightening the mobile workbench lower extreme position.
12. The wire harness testing device according to claim 3, characterized in that: the wire harness disc is installed on the movable workbench through a bearing and at a position corresponding to the test stand column, and the wire harness disc is controlled to rotate through a motor fixedly connected with the wire harness disc.
13. The wire harness testing device according to claim 12, wherein: rotating belt wheels are arranged at four corners of the movable workbench through bearings, wherein one rotating belt wheel is a driving rotating belt wheel, and the other rotating belt wheels are driven rotating belt wheels; a rotating belt wheel motor is arranged on the driving rotating belt wheel, an output shaft of the rotating belt wheel motor is fixedly connected with the driving rotating belt wheel, and the driving rotating belt wheel is connected with other driven rotating belt wheels through a synchronous belt and transmits torque; and the wiring harness disk is fixedly arranged below each rotating belt wheel.
14. The wire harness testing device according to claim 13, wherein: two symmetrical waist-shaped grooves are formed in the middle of the movable workbench, a rotating idler wheel is rotatably mounted in each waist-shaped groove through a fine adjustment bearing, and the synchronous belt penetrates through the rotating idler wheel; and finely adjusting the position of the rotating idler wheel by sliding the fine adjustment bearing in the waist-shaped groove, and further tensioning the synchronous belt.
15. The wire harness testing device according to claim 13, wherein: all the rotating belt wheels are toothed belt wheels, and the synchronous belt is a synchronous toothed belt; the driving rotating belt wheel is connected with the other driven rotating belt wheels through the synchronous toothed belt and is meshed and matched with the synchronous toothed belt.
16. The wire harness testing device according to claim 13, wherein: and a proximity switch is fixedly arranged on the support body on the driving rotation side, a bulge is arranged on the side surface of the driving rotation belt wheel, the proximity switch detects the bulge, and when the bulge is detected, the proximity switch is determined to be the zero point position of the wire harness disk.
17. The wire harness testing device according to claim 1, characterized in that: the test stand column is designed according to each part to be tested in practical application.
18. The wire harness testing device according to claim 1, characterized in that: the wire harness disc is provided with a wire harness mounting hole, and the center of the test stand column is provided with a test hole corresponding to the wire harness mounting hole of the wire harness disc.
19. The wire harness testing device according to claim 18, wherein: and a plurality of harness mounting holes are uniformly and symmetrically formed in the harness plate.
20. The wire harness testing device according to claim 1, characterized in that: the bending wear testing assembly further comprises a wire harness mounting plate, the wire harness mounting plate is fixedly mounted on the supporting body, and the testing stand column is fixedly mounted on the wire harness mounting plate.
21. The wire harness testing device according to claim 1, characterized in that: the supporting body comprises a horizontally placed bottom frame and a supporting frame vertically and fixedly installed on the bottom frame, and an inclined rod is installed between the supporting frame and the bottom frame to form a triangular structure.
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|---|---|---|---|
| CN202011244431.4A CN112414868A (en) | 2020-11-10 | 2020-11-10 | Wire harness testing device |
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| CN202011244431.4A CN112414868A (en) | 2020-11-10 | 2020-11-10 | Wire harness testing device |
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| CN112414868A true CN112414868A (en) | 2021-02-26 |
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