CN116810695A - Vehicle pedal fixing clamp - Google Patents
Vehicle pedal fixing clamp Download PDFInfo
- Publication number
- CN116810695A CN116810695A CN202310966013.3A CN202310966013A CN116810695A CN 116810695 A CN116810695 A CN 116810695A CN 202310966013 A CN202310966013 A CN 202310966013A CN 116810695 A CN116810695 A CN 116810695A
- Authority
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- China
- Prior art keywords
- shell
- fixed
- ratchet wheel
- calipers
- shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000006835 compression Effects 0.000 claims abstract description 5
- 238000007906 compression Methods 0.000 claims abstract description 5
- 230000007246 mechanism Effects 0.000 claims description 16
- 238000012360 testing method Methods 0.000 claims description 14
- 238000009434 installation Methods 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 abstract description 2
- 125000004122 cyclic group Chemical group 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000011056 performance test Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Clamps And Clips (AREA)
Abstract
The invention relates to a vehicle pedal fixing clamp, which comprises a shell, a middle shaft, a cam and two calipers, wherein the middle shaft is connected with the shell; the middle shaft is rotationally connected to the rear end cover of the shell, and the cam is fixedly connected to the middle shaft and positioned in the shell; the middle parts of the two calipers are respectively hinged to two sides of the shell through pin shafts, clamping blocks for clamping the side surfaces of the pedals are respectively fixed at the front ends of the two calipers, ejector rods are respectively fixed at the tail ends of the two calipers, and the free ends of the two ejector rods are respectively propped against the curve profile surface of the cam; the front end of the center shaft is in sliding sleeve joint with an end face movable ratchet wheel capable of sliding along the axial direction of the center shaft, a compression spring is sleeved between the tail end of the end face movable ratchet wheel and a shaft shoulder fixed on the center shaft, and an end face fixed ratchet wheel matched with the end face movable ratchet wheel is fixed on the front end cover of the shell. The invention avoids the abrasion problem caused by the cyclic stress of the screw thread, can effectively increase the installation and debugging speed of the device, and has larger application range of the clamp.
Description
Technical Field
The invention relates to the technical field of vehicle pedal fixing, in particular to a vehicle pedal fixing clamp.
Background
The result of the vehicle performance test is a very important data reference for whether the overall performance of the new vehicle meets the standard or not by the vehicle manufacturer. The vehicle is sold from the beginning of the test to the factory, wherein the steps of vehicle dynamic performance test, engine performance test and the like are included, and the steps are involved in the action of the related pedal. In the past, manual operation is mostly manual, but the repeated precision of manual operation is poor, the continuity and the durability are not as good as those of a machine, and in consideration of the rapid improvement of the yield of vehicles and factories, the requirement on the efficiency is higher and higher, and a test robot is generated. The working process of the testing robot is that a tester inputs a corresponding instruction to a control mechanism of the testing robot, so that the power mechanism pushes the pedal indirectly or directly through a mechanical connecting rod. Some of currently known execution mechanisms of test robots are not provided with clamps, the repetition accuracy and the anti-interference capability are poor, and a common pedal fixing method is a clamping mechanism locked by bolts. The bolt locking type clamp generally adopts a U-shaped plate as a main body, wherein a pedal can be placed in the U-shaped groove, and in addition, a locking force is applied to the pedal from outside to inside by a bolt so as to fix the pedal in the groove. However, the bolts are not suitable for frequent mounting and dismounting, and the screw threads are worn out with increasing cycle times, which results in a decrease in the reliability of the device. And the disassembly of the bolt is slower, so that the efficiency of the test can be influenced as a whole.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a high-efficiency and reliable vehicle pedal fixing clamp.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a vehicle pedal fixing clamp comprises a shell, a middle shaft, a cam and two calipers;
the middle shaft is rotationally connected to the rear end cover of the shell, the tail end of the middle shaft is positioned outside the shell, the front end of the middle shaft stretches into the shell, the cam is fixedly connected to the middle shaft and positioned in the shell, and the side surface of the cam is a curve profile surface;
the middle parts of the two calipers are respectively hinged to two sides of the shell through pin shafts, clamping blocks for clamping the side surfaces of the pedals are respectively fixed at the front ends of the two calipers, a reset spring is connected between the lower ends of the two calipers, ejector rods are respectively fixed at the tail ends of the two calipers, and the free ends of the two ejector rods respectively lean against the curve profile surface of the cam;
the front end of the central shaft is in sliding sleeve connection with an end face movable ratchet wheel capable of sliding along the axial direction of the central shaft, a compression spring is sleeved between the tail end of the end face movable ratchet wheel and a shaft shoulder fixed on the central shaft, an end face fixed ratchet wheel matched with the end face movable ratchet wheel is fixed on a front end cover of the shell, a pushing button is connected on the central shaft of the end face fixed ratchet wheel, and the end face movable ratchet wheel can be separated from the end face fixed ratchet wheel by pressing the pushing button.
Further, a handle is fixed on the tail end of the center shaft.
Further, the clamping block is provided with a V-shaped clamping part.
Further, the cam has a symmetrical cross section that allows the two calipers to move in synchronism.
Further, the upper end face of the shell is fixed with a lifting lug, and the whole vehicle pedal fixing clamp is connected to an actuating mechanism of the testing robot through the lifting lug.
Further, a guide groove is formed in the side face of the front end of the center shaft and is axially arranged along the center shaft, and a protrusion which is in sliding fit with the guide groove is fixed on an inner hole of the end face movable ratchet wheel.
By adopting the technical scheme, the method has the following beneficial technical effects:
1. in the current pedal fixing scheme, a small part of the scheme directly adopts a friction contact mode without a clamp. Most fixing schemes still adopt a bolt fixing method, and the fixing schemes have a large clamping force, but have a slow operation speed and cannot be efficiently and stably adapted to a pipeline test scene. The invention uses the common spring, cam and end ratchet mechanism on the market, simplifies the steps of installation and operation, can be more suitable for the speed requirement on a test assembly line, and compared with the direct use of bolt fastening, the invention avoids the abrasion problem caused by the cyclic stress of the threads, has more convenient installation and more compact structure, and can effectively increase the installation and debugging speed of the device. The profile curve of the cam change can enable the calipers to be freely adapted to pedals with various sizes in the range of travel, so that the application range of the clamp is wider;
2. compared with the characteristic that the clamping force is larger as the weight is larger in a gravity linkage mechanism adopted by a part of locking devices on the market, the invention uses the cam-ratchet mechanism as a power transmission center, has the non-negligible advantage in facing specific application scenes, namely, the non-fixed curvature profile of the cam is matched with the tooth number of the ratchet, a plurality of gears can be generated, and constant and enough clamping force can still be provided by virtue of external force on the premise of adapting to pedals with different sizes.
Drawings
The invention is described in further detail below with reference to the attached drawings and detailed description:
FIG. 1 is a schematic view of a vehicle pedal attachment clamp of the present invention;
fig. 2 is a schematic view of another view of a vehicle pedal attachment clamp according to the present invention.
Description of the embodiments
As shown in fig. 1-2, the vehicle pedal fixing clamp of the present invention comprises a housing, a center shaft 9, a cam 8 and two calipers 2. The middle shaft 9 is rotationally connected to the rear end cover 7 of the shell, the tail end of the middle shaft 9 is positioned outside the shell, the handle 6 is fixed on the tail end of the middle shaft 9, the middle shaft 9 is convenient to rotate, the front end of the middle shaft 9 stretches into the shell, the cam 8 is fixedly connected to the middle shaft 9 and positioned in the shell, and the side surface of the cam 8 is a curve profile surface;
the middle parts of the two calipers 2 are respectively hinged to the two sides of the shell through pin shafts 11, clamping blocks 1 used for clamping the side surfaces of the pedal are respectively fixed to the front ends of the two calipers 2, the clamping blocks 1 are provided with V-shaped clamping parts, and the side surface contours of the pedal can be clamped in an adaptive mode.
A reset spring 12 is connected between the lower ends of the two calipers 2, the tail ends of the two calipers 2 are respectively fixed with a push rod, the free ends of the two push rods are respectively propped against the curve profile surface of the cam 8, the cam 8 has a symmetrical section, and the symmetrical section can enable the two calipers 2 to synchronously move.
The front end of the center shaft 9 is in sliding sleeve connection with an end face movable ratchet wheel 10 capable of sliding along the axial direction of the end face movable ratchet wheel, a guide groove arranged along the axial direction of the end face movable ratchet wheel is specifically formed in the side face of the front end of the center shaft, a protrusion which is in sliding fit with the guide groove is fixed on an inner hole of the end face movable ratchet wheel 10, and therefore the end face movable ratchet wheel 10 can slide along the axial direction of the center shaft 9 and can rotate along with the center shaft 9. A compression spring 4 is sleeved between the tail end of the end face movable ratchet wheel 10 and a shaft shoulder on the middle shaft 9, an end face fixed ratchet wheel 13 which is matched with the end face movable ratchet wheel 10 is fixed on the front end cover 3 of the shell, and the end face movable ratchet wheel 10 can be effectively meshed with the end face fixed ratchet wheel 13 under the action of the compression spring 4. A push button (push button 14 has an automatic reset function) is connected to the center shaft 9 of the end face fixed ratchet 13, and the end face movable ratchet 10 can be separated from the end face fixed ratchet 13 by pressing the push button 14.
The upper end face of the shell is fixed with a lifting lug 5, and the whole vehicle pedal fixing clamp is connected to an actuating mechanism of the testing robot through the lifting lug 5.
The invention adopts the cam 8-lever linkage mechanism, utilizes the characteristic of the variable value curvature profile of the cam 8 to convert external force into the power of the mechanism, and when the cam 8 rotates, the profile on the long axis side of the cam 8 pushes the tail parts of the two calipers 2 outwards, so that the two calipers 2 synchronously move in opposite directions to perform a clamping action to clamp the pedal.
The front end of the cam 8 is linked with the ratchet mechanism, and the whole device is locked in a stable state after the caliper 2 moves in place and the cam 8 stops rotating by utilizing the unidirectional movement characteristic of the ratchet mechanism. The device is ensured not to be automatically sprung out due to the withdrawal of external force.
The operation steps of the invention are as follows:
s1, after a testing robot reaches a preset station, twisting a handle 6 at the tail end of a center shaft 9 to enable a cam 8 to rotate, and adjusting the cam to an initial state, wherein the opening of two calipers 2 is the largest;
s2, finely adjusting the angle of the clamp, and enabling the V-shaped clamping part on the clamping block 1 to be aligned with the side profile of the pedal as much as possible;
s3, twisting the handle 6 at the tail of the center shaft 9 clockwise, and rotating the cam 8 to prop up the tail of the two calipers 2, so that the two clamping blocks 1 synchronously move to the middle to clamp the pedal, the movable end face ratchet wheel is driven to move clockwise and generate anticlockwise locking under the action of the end face fixed ratchet wheel 13, and the clamp enters a working state at the moment;
s4, fine tuning the clamp again, checking whether the clamping block 1 is clung to the side face of the pedal, and properly adjusting the handle 6 to enable the clamping force to be maximum;
s5, after the test is completed, the action of the test robot is adjusted to enable the mechanism to be released, namely the clamp and the pedal are not stressed any more;
s6, pushing the button at the upper cover, releasing the meshed ratchet mechanism (separating the end face movable ratchet 10 from the end face fixed ratchet 13), and expanding the two calipers 2 under the action of the return spring 12, so that the clamp returns to the initial state.
While particular embodiments of the present invention have been described above, it will be understood by those skilled in the art that this is by way of example only, and that various changes and modifications may be made to this embodiment without departing from the spirit and scope of the invention, but these changes and modifications are within the scope of the invention.
Claims (6)
1. A vehicle pedal mounting fixture, characterized in that: comprises a shell, a middle shaft, a cam and two calipers;
the middle shaft is rotationally connected to the rear end cover of the shell, the tail end of the middle shaft is positioned outside the shell, the front end of the middle shaft stretches into the shell, the cam is fixedly connected to the middle shaft and positioned in the shell, and the side surface of the cam is a curve profile surface;
the middle parts of the two calipers are respectively hinged to two sides of the shell through pin shafts, clamping blocks for clamping the side surfaces of the pedals are respectively fixed at the front ends of the two calipers, a reset spring is connected between the lower ends of the two calipers, ejector rods are respectively fixed at the tail ends of the two calipers, and the free ends of the two ejector rods respectively lean against the curve profile surface of the cam;
the front end of the central shaft is in sliding sleeve connection with an end face movable ratchet wheel capable of sliding along the axial direction of the central shaft, a compression spring is sleeved between the tail end of the end face movable ratchet wheel and a shaft shoulder fixed on the central shaft, an end face fixed ratchet wheel matched with the end face movable ratchet wheel is fixed on a front end cover of the shell, a pushing button is connected on the central shaft of the end face fixed ratchet wheel, and the end face movable ratchet wheel can be separated from the end face fixed ratchet wheel by pressing the pushing button.
2. A vehicle pedal fixing jig according to claim 1, wherein: a handle is fixed on the tail end of the middle shaft.
3. A vehicle pedal fixing jig according to claim 1, wherein: the clamping block is provided with a V-shaped clamping part.
4. A vehicle pedal fixing jig according to claim 1, wherein: the cam has a symmetrical section which allows the two calipers to move in synchronism.
5. A vehicle pedal fixing jig according to claim 1, wherein: the upper end face of the shell is fixed with a lifting lug, and the whole vehicle pedal fixing clamp is connected to an actuating mechanism of the testing robot through the lifting lug.
6. A vehicle pedal fixing jig according to claim 1, wherein: the front end side of the center shaft is provided with a guide groove axially arranged along the center shaft, and a protrusion which is in sliding fit with the guide groove is fixed on an inner hole of the end face movable ratchet wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310966013.3A CN116810695A (en) | 2023-08-02 | 2023-08-02 | Vehicle pedal fixing clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310966013.3A CN116810695A (en) | 2023-08-02 | 2023-08-02 | Vehicle pedal fixing clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116810695A true CN116810695A (en) | 2023-09-29 |
Family
ID=88124201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310966013.3A Pending CN116810695A (en) | 2023-08-02 | 2023-08-02 | Vehicle pedal fixing clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116810695A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116928535A (en) * | 2023-09-14 | 2023-10-24 | 山西天聪电力工程设计有限公司 | Intelligent measuring device based on electric power design |
-
2023
- 2023-08-02 CN CN202310966013.3A patent/CN116810695A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116928535A (en) * | 2023-09-14 | 2023-10-24 | 山西天聪电力工程设计有限公司 | Intelligent measuring device based on electric power design |
| CN116928535B (en) * | 2023-09-14 | 2023-12-08 | 山西天聪电力工程设计有限公司 | Intelligent measuring device based on electric power design |
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