CN112816119A - Sliding friction force detection device of automobile seat sliding rail and sliding rail assembly line - Google Patents
Sliding friction force detection device of automobile seat sliding rail and sliding rail assembly line Download PDFInfo
- Publication number
- CN112816119A CN112816119A CN202110270755.3A CN202110270755A CN112816119A CN 112816119 A CN112816119 A CN 112816119A CN 202110270755 A CN202110270755 A CN 202110270755A CN 112816119 A CN112816119 A CN 112816119A
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- platform
- sliding
- slide rail
- friction force
- moving
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Seats For Vehicles (AREA)
Abstract
The invention discloses a sliding friction force detection device of an automobile seat sliding rail, which comprises a base plate, a transverse moving mechanism, a moving platform, a longitudinal moving mechanism, a measuring platform, a force cell and a swinging rod, wherein the transverse moving mechanism is fixed on the base plate and drives the moving platform to transversely move on the surface of the base plate, the longitudinal moving mechanism is fixed on the moving platform and drives the measuring platform to longitudinally move on the surface of the moving platform, the middle part of the swinging rod is hinged with the measuring platform, the lower end of the swinging rod downwards extends out of the lower edge of the measuring platform and is clamped with a sliding part of the automobile seat sliding rail, and the force cell is fixedly arranged on the measuring platform and is positioned on the side of. The invention also discloses a slide rail assembly line comprising the detection device. According to the invention, through the arrangement of the swing rod, the clamping operation on the slide rail is avoided, the detection efficiency is improved, and the swing rod can be directly applied to a slide rail assembly line to improve the finished product output efficiency.
Description
Technical Field
The invention relates to a friction force detection device and a slide rail assembly line, in particular to a sliding friction force detection device of an automobile seat slide rail and a slide rail assembly line.
Background
In the past, the friction force test of the automobile seat slide rail adopts manual sliding of the slide rail for judgment, so that the judgment standard is greatly changed along with uncertain factors of people, and accurate judgment is difficult to make. Therefore, chinese patent with publication number CN211373900U discloses a slide rail friction force measuring mechanism, on the second base was fixed in first base, servo motor was fixed in on the first base, and servo motor's output passed through the synchronizing wheel hold-in range and was connected with the lead screw, the clamping jaw fixing base passes through thread block threaded connection in lead screw, clamping jaw fixing base sliding connection in first linear guide, and frock fixing base sliding connection in second linear guide, the frock install in on the frock fixing base, the test slide rail is installed on the frock, and the both ends of clamping jaw fixing base are connected respectively in the test slide rail, and the load sensor passes through the sensor and fixes respectively to be installed on the first base at the both ends of frock fixing base. The device drives the sliding rail to slide through the servo motor, and the friction force is detected by the load sensor, so that the application of the push-pull action of the ground sliding rail is accurate and controllable, and the friction force is accurately measured, and the problem of low reliability in manual measurement is solved. However, there is still room for improvement in the above mechanisms, specifically: the slide rail need be fixed with the slide rail seat and the base of slide rail through the manual work on measuring mechanism, need control the clamping jaw and carry out the centre gripping to the sliding part of slide rail, this on the one hand is when a plurality of slide rails are examined, and fixed and installation spent time is longer, and detection efficiency is not high, and on the other hand, mutual position restriction between a plurality of parts of slide rail and measuring mechanism, the assembly line of slide rail can't be applicable to this mechanism, and then the finished product that influences whole slide rail goes out the product efficiency.
Disclosure of Invention
In view of the above-mentioned deficiencies of the prior art, an object of the present invention is to provide a sliding friction force detection device for a sliding rail of an automobile seat, which solves the problems of low detection efficiency and influence on the product production speed caused by the need of fixing a fixing seat and a sliding part of the sliding rail by an independent detection device during the measurement of the sliding rail friction force and the need of detaching the sliding rail from the detection device after the detection is completed. Another task of the present invention is to provide a slide rail assembly line.
The technical scheme of the invention is as follows: the utility model provides a sliding friction power detection device of car seat slide rail, includes base plate, lateral shifting mechanism, moving platform, longitudinal movement mechanism, measuring platform, force cell sensor and pendulum rod, lateral shifting mechanism is fixed in base plate and drive moving platform is in the surperficial sideslip of base plate, longitudinal movement mechanism is fixed in moving platform and drive measuring platform is in moving platform's surface is indulged and is moved, the middle part of pendulum rod with measuring platform is articulated, the pendulum rod with measuring platform's articulated shaft perpendicular to measuring platform's surface, the lower extreme of pendulum rod stretch out downwards in measuring platform's lower border and with the sliding part joint of car seat slide rail, force cell sensor fix set up in measuring platform and be located the side of the upper end of pendulum rod.
Further, in order to calculate the measurement result, the position of the hinge axis of the swing rod is equal to the distance between the load cell and the sliding part of the slide rail.
Further, the transverse moving mechanism comprises a servo motor, a lead screw, a moving block and a first guide rail, the servo motor and the first guide rail are fixed on the base plate, the servo motor drives the lead screw to rotate, the moving block and the lead screw form a lead screw nut kinematic pair, the moving block is fixedly connected with the moving platform, and the moving platform is provided with a first guide block matched with the first guide rail.
Furthermore, because the sliding friction requirements of the various stretching length positions of the sliding rail are different, in order to accurately measure the length section positions, the substrate is fixedly provided with a displacement sensor for measuring the traversing distance of the moving platform and controlling the action of the servo motor.
Further, the longitudinal moving mechanism comprises an air cylinder, a cylinder body of the air cylinder is fixedly connected with the moving platform, an air cylinder rod of the air cylinder is fixedly connected with the measuring platform, and the measuring platform and the moving platform are guided through a second guide rail and a second guide block.
Furthermore, in order to measure the bidirectional friction force of the sliding part of the sliding rail, two load cells are arranged and positioned on two sides of the upper end of the swing rod, and a gap is reserved between the two load cells and the upper end of the swing rod.
Furthermore, in order to prevent the swing rod from causing collision damage to the sliding part of the sliding rail, the lower end of the swing rod is connected with a positioning block, and the hardness of the positioning block is lower than that of the sliding part of the sliding rail.
Furthermore, in order to enable the positioning block to be easily clamped with the sliding part of the sliding rail, the corners of the positioning block are chamfered.
The invention also provides a slide rail assembly line which comprises the sliding friction force detection device of the automobile seat slide rail.
Compared with the prior art, the invention has the advantages that:
the swing rod design is adopted, a clamping jaw matched with a sliding part of the sliding rail is omitted, the connection between the detection device and the sliding rail is simplified, the detection device and the sliding rail can be combined or separated only through the action of the longitudinal moving mechanism, the detection efficiency is improved, the circulation speed of the sliding rail is not influenced, the detection device can be easily integrated into an assembly line of the sliding rail to complete online monitoring, and the finished product yield of the sliding rail is further improved;
the design of the swing rod can detect the bidirectional sliding force, the result directly reflects the friction force of the slide rail, and compared with the transverse push-pull type measurement, the push-pull force cannot be introduced, and the measurement is more accurate;
the displacement sensor is adopted to control the moving position of the moving platform, a friction force curve graph can be embodied, the friction force of each detection point position can also be embodied, and the swing rods are arranged at equal intervals up and down, so that the force value is unchanged during detection, and the result calculation is facilitated.
Drawings
Fig. 1 is a schematic structural view of a sliding friction force detection device of an automobile seat slide rail according to an embodiment.
Fig. 2 is a schematic backside view structural diagram (hidden substrate) of the sliding friction force detection apparatus of the automobile seat slide rail according to the embodiment.
Detailed Description
The present invention is further illustrated by the following examples, which are not to be construed as limiting the invention thereto.
Referring to fig. 1 and 2, in a sliding friction force detection device for an automobile seat slide rail according to an embodiment of the present invention, a base plate 1, a transverse moving mechanism, a moving platform 2, a longitudinal moving mechanism, a measuring platform 3, a load cell 4, and a pendulum rod 5 are provided, where in order to facilitate the integration and arrangement of the measuring device on a slide rail assembly line, the base plate 1, the moving platform 2, and the measuring platform 3 are vertically disposed, that is, lateral surfaces of the base plate 1, the moving platform 2, and the measuring platform 3 are vertical surfaces.
The transverse moving mechanism comprises a servo motor 6, a screw rod 7, a moving block 8 and a first guide rail 9. The servo motor 6 and the first guide rail 9 are fixedly arranged on the lateral surface of the substrate 1, the lead screw 7 and the first guide rail 9 are arranged in parallel and driven to rotate by the servo motor 6, the moving block 8 and the lead screw 7 form a lead screw 7 nut kinematic pair, and the moving block 8 is driven to translate by the rotation of the lead screw 7. The moving block 8 is fixedly arranged on the back side of the moving platform 2, a first guide block 11 matched with the first guide rail 9 is further fixedly arranged on the back side of the moving platform 2, and the moving platform 2 is guided by the first guide rail 9 in the transverse moving process. Because the sliding friction requirements of all stretching length positions of the slide rail are different, the measuring platform 3 drives the slide rail to be pushed and pulled to different positions by controlling the driving of the servo motor 6. The control of the driving amount of the servo motor 6 is determined by a displacement sensor 12. A displacement sensor 12 is fixedly arranged on the substrate 1, the displacement sensor 12 is arranged in parallel to the first guide rail 9, the measuring end of the displacement sensor 12 abuts against the moving platform 2 and is used for measuring the transverse moving distance of the moving platform 2, and the movement of the servo motor 6 is controlled through the moving distance information obtained by the displacement sensor 12.
The longitudinal moving mechanism, the load cell 4 and the oscillating bar 5 are all arranged on the moving platform 2. In this embodiment, the longitudinal moving mechanism is a cylinder 13, and the cylinder body of the cylinder 13 is fixed on the moving platform 2. The cylinder rod of cylinder 13 and measuring platform 3 fixed connection and be vertical setting downwards, measuring platform 3's the fixed second guide block 14 of dorsal part, fixed second guide rail 15 on the moving platform 2, the cooperation through second guide rail 15 and second guide block 14 is measuring platform 3's removal direction. The middle part of the swing rod 5 is hinged with the measuring platform 3, the swing rod 5 is vertically arranged, and the hinged shafts 17 of the swing rod 5 and the measuring platform 3 are perpendicular to the lateral surface of the measuring platform 3. A plurality of holes are formed in the sliding part 16 of the sliding rail, and the lower end of the swing rod 5 downwards extends out of the lower edge of the measuring platform 3 and is inserted into a larger hole to be clamped with the sliding part 16 of the sliding rail of the automobile seat. Two force sensors 4 are arranged and respectively fixed on the left side and the right side of the measuring platform 3, which are positioned at the upper end of the swing rod 5, and a small gap is reserved between the force sensors 4 and the upper end of the swing rod 5. When the servo motor 6 drives the moving platform 2 to move, the swing rod 5 is driven to transversely move, the lower end of the swing rod 5 rotates under the action of a sliding part 16 of the automobile seat sliding rail, and therefore the upper end of the swing rod 5 correspondingly rotates to obtain friction force data through the force measuring sensor 4. The force sensors 4 arranged on both sides can measure the bidirectional friction force at the same position. In order to simplify the calculation of such measured values, the position of the hinge axis 17 of the rocker 5 is equal to the distance between the load cell 4 and the sliding part 16 of the slide rail, i.e. the upper-lower length ratio of the rocker 5 is 1: 1, the action amplitudes of the upper end and the lower end of the swing rod 5 are the same, and a test result can be directly obtained during measurement.
In order to prevent the swing rod 5 from causing collision damage to the sliding part 16 of the sliding rail and enable the positioning block to be easily clamped with the sliding part 16 of the sliding rail, the lower end of the swing rod 5 is connected with the positioning block 10, the hardness of the positioning block 10 is lower than that of the sliding part 16 of the sliding rail, and the corners of the positioning block 10 are chamfered. The whole detection device can be arranged at the position behind the finishing station of the slide rail assembly line, the slide rail after the assembly is conveyed to the detection position by the conveying belt, the fixed part 18 of the slide rail is clamped, the swing rod 5 is inserted into the slide rail from top to bottom to measure, and the slide rail after the measurement is finished can be conveyed by the conveying belt continuously.
The working process of the sliding friction force detection device of the automobile seat sliding rail in the embodiment is that after the sliding rail is in place, the air cylinder 13 acts, the air cylinder rod extends to enable the measuring platform 3 to move downwards, the positioning block at the lower end of the oscillating bar 5 enters the sliding part 16 of the sliding rail to form clamping fit, the servo motor 6 acts to drive the moving platform 2 to transversely move along the sliding direction of the sliding rail, at the moment, the oscillating bar 5 has a transverse moving trend under the driving of the moving platform 2, the lower end of the oscillating bar 5 is blocked by the sliding rail to enable the oscillating bar 5 to slightly rotate, and the upper end of the oscillating bar 5 is in contact with the force measuring sensor 4 on the opposite side of the moving platform 2 to measure. After the test is finished at one position of the slide rail, the servo motor 6 continues to drive the moving platform 2 to move transversely, the sliding part 16 of the slide rail slides on the fixed part 18 through the swing rod 5, namely different stretching lengths of the slide rail are formed, the process can be repeated again for measurement, after all data are directly obtained, the air cylinder 13 acts again, the air cylinder rod is retracted to enable the measuring platform 3 to move upwards, and the swing rod 5 is separated from a hole of the sliding part 16.
Claims (9)
1. The sliding friction force detection device of the automobile seat sliding rail is characterized by comprising a base plate, a transverse moving mechanism, a moving platform, a longitudinal moving mechanism, a measuring platform, a force measuring sensor and a swinging rod, wherein the transverse moving mechanism is fixed on the base plate and drives the moving platform to transversely move on the surface of the base plate, the longitudinal moving mechanism is fixed on the moving platform and drives the measuring platform to longitudinally move on the surface of the moving platform, the middle part of the swinging rod is hinged to the measuring platform, the lower end of the swinging rod downwards extends out of the lower edge of the measuring platform and is clamped with a sliding part of the automobile seat sliding rail, and the force measuring sensor is fixedly arranged on the measuring platform and is positioned on the side of the upper end of the swinging rod.
2. The sliding friction force detecting device of a slide rail of an automobile seat according to claim 1, wherein a hinge axis position of the swing lever is equal to a distance between the load cell and a sliding member of the slide rail.
3. The sliding friction force detecting device of an automobile seat slide rail according to claim 1, wherein the lateral movement mechanism includes a servo motor, a lead screw, a moving block, and a first guide rail, the servo motor and the first guide rail are fixed to the base plate, the servo motor drives the lead screw to rotate, the moving block and the lead screw form a lead screw nut kinematic pair, the moving block is fixedly connected to the moving platform, and the moving platform is provided with a first guide block matching with the first guide rail.
4. The sliding friction force detecting device of the car seat sliding rail according to claim 3, wherein a displacement sensor is fixedly arranged on the base plate for measuring the traversing distance of the moving platform and controlling the action of the servo motor.
5. The sliding friction force detecting device of the automobile seat sliding rail according to claim 3, wherein the longitudinal moving mechanism comprises an air cylinder, a cylinder body of the air cylinder is fixedly connected with the moving platform, an air cylinder rod of the air cylinder is fixedly connected with the measuring platform, and the measuring platform and the moving platform are guided by a second guide rail and a second guide block.
6. The sliding friction force detecting device for an automobile seat slide rail according to claim 1, wherein two load cells are provided and located at both sides of the upper end of the swing link, and a gap is left between the two load cells and the upper end of the swing link.
7. The sliding friction force detecting device of a slide rail of an automobile seat according to claim 1, wherein a positioning block is connected to a lower end of the swing link, and a hardness of the positioning block is lower than a hardness of a sliding member of the slide rail.
8. The sliding friction force detecting device of a slide rail of a seat for an automobile according to claim 7, wherein corners of the positioning block are chamfered.
9. A slide rail assembly line, characterized by comprising the sliding friction force detecting apparatus of the automobile seat slide rail according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110270755.3A CN112816119A (en) | 2021-03-12 | 2021-03-12 | Sliding friction force detection device of automobile seat sliding rail and sliding rail assembly line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110270755.3A CN112816119A (en) | 2021-03-12 | 2021-03-12 | Sliding friction force detection device of automobile seat sliding rail and sliding rail assembly line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112816119A true CN112816119A (en) | 2021-05-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110270755.3A Withdrawn CN112816119A (en) | 2021-03-12 | 2021-03-12 | Sliding friction force detection device of automobile seat sliding rail and sliding rail assembly line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112816119A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114720037A (en) * | 2022-04-07 | 2022-07-08 | 宁波崇友科技有限公司 | Multifunctional integrated machine for automatic assembly and test of automobile seat slide rail |
| CN115901057A (en) * | 2022-12-25 | 2023-04-04 | 江苏裕一智能装备有限公司 | Car seat guide rail test equipment |
-
2021
- 2021-03-12 CN CN202110270755.3A patent/CN112816119A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114720037A (en) * | 2022-04-07 | 2022-07-08 | 宁波崇友科技有限公司 | Multifunctional integrated machine for automatic assembly and test of automobile seat slide rail |
| CN114720037B (en) * | 2022-04-07 | 2024-04-02 | 宁波崇友科技有限公司 | Multifunctional integrated machine for automatic assembly and test of automobile seat slide rail |
| CN115901057A (en) * | 2022-12-25 | 2023-04-04 | 江苏裕一智能装备有限公司 | Car seat guide rail test equipment |
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Application publication date: 20210518 |