Torsion testing mechanism for pedal detection

Abstract

The utility model relates to the technical field of testing, and discloses a torsion testing mechanism for pedal detection, which comprises a workbench, a base plate III mounted on the front surface of the workbench, shaft seats II mounted on the front surface of the front side of the base plate III close to two ends through bolts, a linear screw rod II arranged between the shaft seats II at the two ends, and a linear motor II mounted on the linear screw rod for transmission, a first stepping motor is installed on the left position of the front side of the y-shaped frame through a bolt, a lower swing arm is installed on the right position of the front side of the y-shaped frame through a bearing in a sleeving mode, a second steering engine is installed on the right side, facing the pedal body, of the bottom of the lower swing arm through a bolt, and connecting plates are installed on the front arm and the rear arm of the second steering engine through bolts. A clamping rod is installed on the connecting plate through a bolt. According to the testing mechanism, through the arrangement of the lower swing arm, forward and backward longitudinal torsion force application can be carried out on the pedal after the pedal is fixed, so that the torsion test can be carried out on the rigidity of the pedal.

Description

Technical Field

[0001] The utility model relates to the technical field of testing, in particular to a torsion testing mechanism for pedal detection. Background Art

[0002] Foot pedals are used to start, stop, or adjust the operating state of equipment. By stepping on a foot pedal, an operator can conveniently control the operation of a device, such as a car's accelerator and clutch pedal. Automotive accelerator and clutch pedals are typically subject to spot checks after production. Current testing primarily focuses on service life, which provides only general feedback on the pedal's service life and lacks torsional testing of its rigidity and strength. Utility Model Content

[0003] (1) Technical problems solved

[0004] In view of the deficiencies in the prior art, the present invention provides a torsion testing mechanism for pedal detection to solve the problems in the background technology.

[0005] (2) Technical solution

[0006] In order to solve the above problems, the present invention provides the following technical solutions:

[0007] A torsion test mechanism for pedal detection includes a workbench, a fixing frame is bolted to the middle position of the front of the workbench, the upper part of the pedal body extends into the fixing frame, an insertion shaft is inserted into the fixing frame and passes through the shaft hole of the upper part of the pedal body, the pedal body is fixed to the fixing frame through the insertion shaft, a longitudinal torsion test unit is bolted to the workbench on the left side of the fixing frame, the longitudinal torsion test unit includes a base plate three, the base plate three is fixed to the workbench at a corresponding position by bolts, an axle seat two is bolted to the front side of the base plate three at both ends, a linear screw rod two is provided between the axle seats two at both ends, and the two ends of the linear screw rod two are sleeved on the bearings of the axle seat two at corresponding positions to form a sleeve fixation;

[0008] A second linear motor is installed on the second linear lead screw, and a Y-shaped frame extending forward is installed on the second linear motor. A stepper motor is bolted to the left front side of the Y-shaped frame, and a lower swing arm is installed to the right front side of the Y-shaped frame through a bearing set. A coupling is installed between the first stepper motor and the lower swing arm, and the first stepper motor and the lower swing arm are connected through a coupling. A second servo is bolted to the right side of the bottom of the lower swing arm facing the pedal body, and connecting plates are bolted to the front and rear double arms of the servo. A clamping rod is bolted to the connecting plate, and the clamping rod reaches the front and rear sides of the pedal body at the corresponding position to form a limit fixation.

[0009] Preferably, a slide rail 2 is bolted onto the base plate 3 above the linear screw rod 2, a slider 2 is bolted onto the Y-shaped frame at a position corresponding to the slide rail 2, and the slider 2 is slidably limited and connected to the slide rail 2.

[0010] Preferably, a fixing unit is bolted installed in the middle position of the front face of the workbench, and the pedal body is fixed to the workbench through the fixing unit. The fixing unit includes a fixing frame. A base plate 1 is bolted installed in the middle position of the front face of the workbench. The fixing frame is located on the front side of the base plate 1. An upper pad and a lower pad are bolted installed at the top and bottom positions of the fixing frame corresponding to the front side of the base plate 1, respectively. The fixing frame is fixed to the upper pad and the lower pad at the corresponding positions through bolts.

[0011] Preferably, an auxiliary fixing unit is bolted to the workbench on the right side of the fixing unit, and the auxiliary fixing unit includes a base plate 2, which is fixed to the workbench at the corresponding position by bolts, and an axle seat 1 is bolted to the front side of the front side of the base plate 2 at both ends, and a linear screw rod 1 is provided between the axle seats 1 at both ends, and the two ends of the linear screw rod 1 are sleeved on the bearings of the axle seat 1 at the corresponding position to form a sleeve fixation, and a transmission linear motor 1 is installed on the linear screw rod 1, and a connecting frame extending forward is bolted to the linear motor 1, and a servo 1 is bolted to the top surface of the connecting frame near the front end position bolt to install the servo 1, and a connecting plate is bolted to the single arm of the servo 1, and a fixing plate is bolted to the left side of the connecting frame at the servo 1 position. A stop rod is bolted to the fixing plate, and a connecting rod facing the stop rod is bolted to the connecting plate, and a stop bar is threadedly connected to the end of the connecting rod, and the stop bar is parallel to the stop bar, and the stop bar and the stop bar are pressed against the front and rear sides of the pedal body to form a limit fixation.

[0012] Preferably, a slide rail 1 is bolted onto the base plate 2 below the linear screw rod 1, a slider 1 is bolted onto the connecting frame at a position corresponding to the slide rail 1, and the slider 1 is slidably limited and connected to the slide rail 1.

[0013] Preferably, a transverse torsion test unit is bolted to the workbench at the lower front side of the fixing unit, and the transverse torsion test unit includes a base plate four, a base frame is provided directly below the base plate four, the base frame is fixed to the workbench at the corresponding position by bolts, a telescopic rod is installed at the middle position of the top of the base frame, the top of the telescopic rod is fixed to the bottom bolt of the base plate four at the corresponding position, a cylinder is bolted to the position of the telescopic rod at the bottom of the base frame, and the cylinder is driven and connected to the telescopic rod, and an axle seat three is bolted on the top surface of the base plate four at both ends, and a screw rod three is provided between the axle seats three at both ends, and the two ends of the screw rod three are sleeved on the bearings of the axle seat three at the corresponding position to form a sleeve fixation, a stepper motor two is bolted on the axle seat three at the left end position of the base plate four, the stepper motor two is connected to the screw rod three for transmission, a slider three is threadedly connected to the screw rod three, the top bolt of the slider three is installed with a fixed platform, the top bolt of the fixed platform is installed with a top plate, and the bolts at both ends of the top plate are installed with limit rods, which resist the left and right sides of the pedal on the pedal body to form a limit.

[0014] Preferably, sliding sleeves are welded and installed on the base frame at the four corners, and positioning rods are bolted and installed at the four bottom surfaces of the base plate corresponding to the positions of the sliding sleeves, and the positioning rods pass through the sliding sleeves to limit the sliding.

[0015] (3) Beneficial effects

[0016] Compared with the prior art, the present invention provides a torsion test mechanism for pedal detection, which has the following beneficial effects:

[0017] 1. The test mechanism, through the setting of the lower arm, can apply a torsional force to the pedal in the longitudinal direction after the pedal is fixed, thereby performing a torsional test on the rigidity of the pedal.

[0018] 2. The test mechanism can provide additional fixing points based on the fixing of the fixing frame through the auxiliary fixing unit to facilitate the testing of the pedal.

[0019] 3. This test facility, by adding an additional lateral torsion test unit, can provide left and right lateral torsion tests on the pedals. Combined with the longitudinal torsion test, the test range is expanded. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the appearance diagram of the utility model;

[0021] Figure 2 This is a schematic structural diagram of the fixing unit in the present utility model;

[0022] Figure 3 This is a schematic structural diagram of the auxiliary fixing unit in the present utility model;

[0023] Figure 4 This is a structural diagram of the longitudinal torsion test unit in the present invention;

[0024] Figure 5 This is a structural diagram of the lateral torsion test unit in the utility model.

[0025] In the figure: 1. Workbench; 2. Fixing unit; 21. Base plate 1; 22. Fixing frame; 23. Upper cushion; 24. Lower cushion; 25. Insert shaft; 3. Auxiliary fixing unit; 31. Base plate 2; 32. Connecting frame; 33. Shaft seat 1; 34. Linear screw 1; 35. Linear motor 1; 36. Slide rail 1; 37. Slider 1; 38. Servo 1; 39. Connecting plate; 310. Fixing plate; 311. Connecting rod; 312. Stop bar; 313. Stop rod; 4. Longitudinal-torsion test unit; 41. Base plate 3; 42. Y-shaped frame; 43. Shaft seat 2; 44. Linear screw 2; 45. Linear motor 2; 46. Slide rail 2; 47. Slider 2; 48. Lower arm; 49. Stepper motor 1; 410. Coupling 1; 411. Servo 2; 412. Connecting plate; 413. Clamping rod; 5. Transverse torsion test unit; 51. Base plate 4; 52. Shaft seat 3; 53. Screw rod 3; 54. Stepper motor 2; 55. Slider 3; 56. Fixed table; 57. Top plate; 58. Limit rod; 59. Base frame; 510. Positioning rod; 511. Sliding sleeve; 512. Cylinder; 513. Telescopic rod; 6. Pedal body; 61. Pedal; 62. Axle hole. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0027] See also Figure 1-5 A torsion testing mechanism for pedal inspection includes a workbench 1, a fixing unit 2 is bolted to the middle position of the front of the workbench 1, a pedal body 6 is mounted on the fixing unit 2, a longitudinal torsion testing unit 4 is bolted to the workbench 1 on the left side of the fixing unit 2, an auxiliary fixing unit 3 is bolted to the workbench 1 on the right side of the fixing unit 2, and a transverse torsion testing unit 5 is bolted to the workbench 1 on the front and lower side of the fixing unit 2;

[0028] The fixing unit 2 includes a base plate 21, which is fixed to the workbench 1 at the corresponding position by bolts. A fixing frame 22 is provided on the front side of the base plate 21. An upper pad 23 and a lower pad 24 are bolted to the top and bottom positions of the fixing frame 22 on the front side of the base plate 21 respectively. The fixing frame 22 is fixed to the upper pad 23 and the lower pad 24 at the corresponding positions by bolts. The upper part of the pedal body 6 extends into the fixing frame 22. An insertion shaft 25 passing through the upper shaft hole 62 of the pedal body 6 is inserted into the fixing frame 22. The pedal body 6 is fixed to the fixing frame 22 through the insertion shaft 25.

[0029] The auxiliary fixing unit 3 includes a base plate 2 31, which is fixed to the workbench 1 at the corresponding position by bolts. A shaft seat 1 33 is bolted to the front side of the base plate 2 31 at both ends. A linear screw rod 1 34 is provided between the shaft seats 1 33 at both ends. The two ends of the linear screw rod 1 34 are sleeved on the bearings of the shaft seats 1 33 at the corresponding positions to form a sleeve fixation. A transmission linear motor 1 35 is installed on the linear screw rod 1 34. A connecting frame 32 extending forward is bolted to the linear motor 1 35. A slide rail 1 36 is bolted to the base plate 2 31 below the linear screw rod 1 34. A slider 1 37 is bolted to the connecting frame 32 at the position corresponding to the slide rail 1 36. The slider 1 37 is connected to the slide rail 1 36 in a sliding limit position.

[0030] A servo 38 is bolted to the top surface of the connecting frame 32 at the front end. A connecting plate 39 is bolted to the single arm of the servo 38. A fixing plate 310 is bolted to the left side of the connecting frame 32 at the position of the servo 38. A stopper 313 is bolted to the fixing plate 310 at the rear end of the linear screw 34. A connecting rod 311 facing the stopper 313 is bolted to the connecting plate 39. A stopper bar 312 is threadedly connected to the end of the connecting rod 311. The stopper bar 312 is parallel to the stopper bar 313. The stopper bar 312 and the stopper bar 313 abut against the front and rear edges of the pedal body 6 to form a limit fixation.

[0031] The longitudinal torsion test unit 4 includes a base plate 3 41, which is fixed to the workbench 1 at the corresponding position by bolts. A shaft seat 2 43 is bolted to the front side of the base plate 3 41 at both ends. A linear screw rod 2 44 is provided between the shaft seats 2 43 at both ends. The two ends of the linear screw rod 2 44 are sleeved on the bearings of the shaft seat 2 43 at the corresponding positions to form a sleeve fixation. A transmission linear motor 2 45 is installed on the linear screw rod 2 44, and a Y-shaped frame 42 extending forward is installed on the linear motor 2 45. A slide rail 2 46 is bolted to the base plate 3 41 above the linear screw rod 2 44. A slider 2 47 is bolted to the Y-shaped frame 42 at the position corresponding to the slide rail 2 46. The slider 2 47 is connected to the slide rail 2 46 in a sliding limit position.

[0032] A stepper motor 49 is bolted to the left side of the front side of the Y-shaped frame 42, and a lower swing arm 48 is installed to the right side of the front side of the Y-shaped frame 42 through a bearing set. A coupling 410 is installed between the stepper motor 49 and the lower swing arm 48. The stepper motor 49 and the lower swing arm 48 are connected to each other through the coupling 410. A servo 2 411 is bolted to the bottom of the lower swing arm 48 toward the right side of the pedal body 6. Connecting plates 412 are bolted to the front and rear double arms of the servo 2 411. A clamping rod 413 is bolted to the connecting plate 412. The clamping rod 413 abuts against the front and rear sides of the pedal body 6 at corresponding positions to form a limit fixation.

[0033] The transverse-torsion test unit 5 includes a base plate 51, a base frame 59 is provided directly below the base plate 51, and the base frame 59 is fixed to the workbench 1 at the corresponding position by bolts. Slide sleeves 511 are welded and installed on the base frame 59 at the four corners. Positioning rods 510 are bolted to the bottom surface of the base plate 51 at positions corresponding to the slide sleeves 511. The positioning rods 510 slide and limit through the slide sleeves 511. A telescopic rod 513 is installed in the middle of the top of the base frame 59. The top of the telescopic rod 513 is bolted to the bottom of the base plate 51 at the corresponding position. A cylinder 512 is bolted to the bottom of the base frame 59 at a position corresponding to the telescopic rod 513. The cylinder 512 is driven and connected to the telescopic rod 513.

[0034] A shaft seat 3 52 is bolted on the top surface of the base plate 4 51 at both ends, and a screw rod 3 53 is provided between the shaft seat 3 52 at both ends. The two ends of the screw rod 3 53 are sleeved onto the bearings of the shaft seat 3 52 at the corresponding positions to form a sleeve fixation. A stepper motor 2 54 is bolted on the shaft seat 3 52 at the left end of the base plate 4 51, and the stepper motor 2 54 is transmission-connected to the screw rod 3 53. A slider 3 55 is threadedly connected to the screw rod 3 53. A fixed platform 56 is bolted on the top of the slider 3 55, and a top plate 57 is bolted on the top of the fixed platform 56. Limit rods 58 are bolted on both ends of the top plate 57, and the limit rods 58 are pressed against the left and right sides of the pedal 61 on the pedal body 6 to form a limit.

[0035] When in use, the pedal body 6 is fixed to the fixing frame 22 through the insertion shaft 25, and then the linear motor 35 is controlled to work, driving the entire connecting frame 32 to move closer to the pedal body 6. At the same time, the servo 38 works to push the connecting plate 39 to extend, so that the gap between the blocking bar 312 and the blocking rod 313 is expanded. The connecting frame 32 moves to the left until the pedal body 6 is between the blocking bar 312 and the blocking rod 313 and stops. At the same time, the servo 38 works to drive the connecting plate 39 to move backward, so that the blocking bar 312 and the blocking rod 313 clamp the pedal body 6 to form an auxiliary fixation;

[0036] The longitudinal torsion test is performed by the longitudinal torsion test unit 4. First, the linear motor 2 45 is controlled to work, driving the entire Y-shaped frame 42 to the right close to the pedal body 6. At the same time, the stepper motor 1 49 is operated to drive the lower swing arm 48 to rotate and adjust to a position aligned with the pedal body 6, so that the two clamping rods 413 can clamp the pedal body 6. Then, the stepper motor 1 49 continues to work to drive the lower swing arm 48 to rotate. Through the force applied at two places, the clamping rod 413 and the blocking bar 312, the pedal body 6 is subjected to a longitudinal torsion test.

[0037] The lateral torsion test is performed by the lateral torsion test unit 5. During the lateral torsion test, the auxiliary fixing unit 3 can be reset. First, the stepper motor 2 54 is controlled to work, driving the entire fixed platform 56 to move horizontally left and right, so that the top plate 57 corresponds to the position of the pedal 61, and then the cylinder 512 is controlled to work to push the top plate 57 to the height position corresponding to the pedal 61, so that the limit rod 58 can be limited from the position of the pedal 61, and then the stepper motor 2 54 continues to work, and the limit rod 58 and the plug shaft 25 are subjected to two forces to perform a left and right lateral torsion test on the pedal body 6. After the test is completed, each unit is reset, and then the plug shaft 25 is removed, and the pedal body 6 can be removed.

Claims

1. A torsion testing mechanism for pedal testing, comprising a workbench (1), characterized in that: A fixing frame (22) is bolted to the middle position of the front of the workbench (1), and the upper part of the pedal body (6) extends into the fixing frame (22). An insertion shaft (25) is inserted into the fixing frame (22) and passes through the upper shaft hole (62) of the pedal body (6). The pedal body (6) is fixed to the fixing frame (22) by the insertion shaft (25). A longitudinal torsion test unit (4) is bolted to the workbench (1) on the left side of the fixing frame (22). The longitudinal torsion test unit (4) includes a base plate three (41). The base plate three (41) is fixed to the workbench (1) at the corresponding position by bolts. An axle seat two (43) is bolted to the front of the front side of the base plate three (41) at the two end positions. A linear screw rod two (44) is provided between the axle seats two (43) at the two ends. The two ends of the linear screw rod two (44) are sleeved on the bearings of the axle seat two (43) at the corresponding position to form a sleeve connection fixation. A second linear motor (45) is installed on the second linear screw (44). A Y-shaped frame (42) extending forward is installed on the second linear motor (45). A stepper motor (49) is installed on the left side of the front side of the Y-shaped frame (42). A lower swing arm (48) is installed on the right side of the front side of the Y-shaped frame (42) through a bearing sleeve. A coupling (410) is installed between the stepper motor (49) and the lower swing arm (48). The stepper motor (49) ) is connected to the lower swing arm (48) through a coupling (410), and a servo motor (411) is bolted to the right side of the pedal body (6) at the bottom of the lower swing arm (48), and a connecting plate (412) is bolted to the front and rear double arms of the servo motor (411). A clamping rod (413) is bolted to the connecting plate (412), and the clamping rod (413) is pressed against the front and rear sides of the pedal body (6) at corresponding positions to form a limit fixation.

2. A torsion testing mechanism for pedal detection according to claim 1, characterized in that: A slide rail 2 (46) is bolted onto the base plate 3 (41) above the linear screw rod 2 (44), and a slider 2 (47) is bolted onto the Y-shaped frame (42) at a position corresponding to the slide rail 2 (46), and the slider 2 (47) is connected to the slide rail 2 (46) in a sliding and limiting manner.

3. A torsion testing mechanism for pedal detection according to claim 1, characterized in that: A fixing unit (2) is bolted to the middle position of the front of the workbench (1), and the pedal body (6) is fixed to the workbench (1) through the fixing unit (2). The fixing unit (2) includes a fixing frame (22). A base plate (21) is bolted to the middle position of the front of the workbench (1). The fixing frame (22) is located on the front side of the base plate (21). An upper cushion (23) and a lower cushion (24) are bolted to the top and bottom positions of the fixing frame (22) on the front side of the base plate (21). The fixing frame (22) is fixed to the upper cushion (23) and the lower cushion (24) at the corresponding positions by bolts.

4. A torsion testing mechanism for pedal detection according to claim 3, characterized in that: An auxiliary fixing unit (3) is bolted on the workbench (1) on the right side of the fixing unit (2). The auxiliary fixing unit (3) includes a base plate (31). The base plate (31) is fixed to the workbench (1) at the corresponding position by bolts. A shaft seat (33) is bolted on the front side of the base plate (31) at both ends. A linear screw rod (34) is provided between the shaft seats (33) at both ends. The two ends of the linear screw rod (34) are sleeved on the bearings of the shaft seats (33) at the corresponding positions to form a sleeve connection. A transmission linear motor (35) is installed on the linear motor (35). A connecting frame (32) extending forward is bolted on the connecting frame (3 2) A servo (38) is bolted on the top surface at the front end position, a connecting plate (39) is bolted on the single arm of the servo (38), a fixing plate (310) is bolted on the left side of the connecting frame (32) at the servo (38), a stopper (313) is bolted on the fixing plate (310) at the rear end of the linear screw rod (34), a connecting rod (311) facing the stopper (313) is bolted on the connecting plate (39), a stopper (312) is threadedly connected to the end of the connecting rod (311), the stopper (312) is parallel to the stopper (313), and the stopper (312) and the stopper (313) are pressed against the front and rear sides of the pedal body (6) to form a limit fixation.

5. A torsion testing mechanism for pedal detection according to claim 4, characterized in that: A slide rail 1 (36) is bolted onto the base plate 2 (31) below the linear screw rod 1 (34), and a slider 1 (37) is bolted onto the connecting frame (32) at a position corresponding to the slide rail 1 (36), and the slider 1 (37) is connected to the slide rail 1 (36) in a sliding and limiting manner.

6. A torsion testing mechanism for pedal detection according to claim 3, characterized in that: A transverse torsion test unit (5) is bolted on the workbench (1) below the front side of the fixing unit (2). The transverse torsion test unit (5) includes a base plate (51). A base frame (59) is provided directly below the base plate (51). The base frame (59) is fixed to the workbench (1) at the corresponding position by bolts. A telescopic rod (513) is installed at the middle position of the top of the base frame (59). The top of the telescopic rod (513) is bolted to the bottom of the base plate (51) at the corresponding position. A cylinder (512) is bolted to the bottom of the base frame (59) at the position corresponding to the telescopic rod (513). The cylinder (512) is connected to the telescopic rod (513) by driving. Axle seat three (52) is bolted to the top surface of the base plate (51) at the two end positions. A screw rod 3 (53) is provided between the shaft seats 3 (52) at both ends. The two ends of the screw rod 3 (53) are sleeved onto the bearings of the shaft seats 3 (52) at the corresponding positions to form a sleeve connection and fixation. A stepper motor 2 (54) is bolted on the shaft seat 3 (52) at the left end of the base plate 4 (51). The stepper motor 2 (54) is transmission-connected to the screw rod 3 (53). A slider 3 (55) is threadedly connected to the screw rod 3 (53). The top bolt of the slider 3 (55) is bolted with a fixed platform (56). The top bolt of the fixed platform (56) is bolted with a top plate (57). The two ends of the top plate (57) are bolted with a limit rod (58). The limit rod (58) is pressed against the left and right sides of the pedal (61) on the pedal body (6) to form a limit.

7. A torsion testing mechanism for pedal detection according to claim 6, characterized in that: Slide sleeves (511) are welded and installed on the base frame (59) at the four corners, and positioning rods (510) are bolted and installed at the positions of the four bottom surfaces of the base plate (51) corresponding to the positions of the slide sleeves (511). The positioning rods (510) pass through the slide sleeves (511) to slide and limit.

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