Automobile wiper arm torsional angle measuring device

Abstract

The invention relates to the technical field of torsional angle measurement, and discloses an automobile wiper arm torsional angle measuring device, which comprises a measuring table and a measuring assembly, and is characterized in that the measuring assembly comprises a measuring seat, the measuring seat is mounted on the measuring table, and a placing seat is arranged above the measuring seat; a clamping seat used for limiting the automobile wiper arm is connected to the measuring table in a sliding mode, a first electric push rod used for adjusting the measuring height of the clamping seat is arranged on the measuring table, and pressure sensors are installed on the two sides of the measuring assembly. The device comprises a measuring table, two marking seats are slidably connected to the measuring table, each marking seat is provided with a rotatable first mounting cylinder, a rotatable second mounting cylinder and a rotatable cleaning piece, and when the torsional angle of the automobile wiper arm is detected to be unqualified, an unqualified product with a small torsional angle deviation value can be automatically marked through a first marking pen; and subsequent workers can conveniently distinguish unqualified products from qualified products.

Description

Technical Field

[0001] The invention relates to the technical field of torsion angle measurement, in particular to a torsion angle measuring device for an automobile scraper arm. Background Art

[0002] The main purpose of measuring the torsion angle of automobile wiper arms is to ensure that the wiper system can work properly under various road conditions. Accurately measuring the torsion angle can ensure that the produced automobile wiper arms can form the best fitting angle between the rubber strip and the glass during use, completely eliminating scratching noise, providing a clear field of vision, and reducing wear on the windshield. Twist angle values that are too large or too small will affect the normal operation of the automobile wiper arms.

[0003] Currently, after the processing of automobile scraper arms is completed, a torsion angle measuring device is needed to measure the torsion angle of the scraper arm. The deflection angle of the pointer on the torsion angle measuring device is used to determine whether the automobile scraper arm is a qualified product. However, when measuring the torsion angle of automobile scraper arms, the existing torsion angle measuring device is not intuitive enough to judge unqualified products and does not have an error-proofing function. Unqualified products cannot be automatically marked and need to be manually identified and marked. This makes the torsion angle measurement process time-consuming and labor-intensive, and the measurement efficiency is low. Summary of the Invention

[0004] The present invention provides a torsion angle measuring device for automobile scraper arms. When the torsion angle of the automobile scraper arm is detected to be unqualified, the device can automatically mark the unqualified products with small torsion angle deviation values through a first marking pen, which facilitates subsequent staff to distinguish between unqualified products and qualified products. It solves the problem mentioned in the above background technology that the judgment of unqualified products is not intuitive enough and has no error-proofing function, and unqualified products cannot be automatically marked. Manual judgment and marking are required, resulting in time-consuming and labor-intensive torsion angle measurement process and low measurement efficiency.

[0005] The present invention provides the following technical solution: a device for measuring the torsion angle of an automobile scraper arm, comprising a measuring platform and a measuring assembly, wherein the measuring assembly comprises a measuring seat, the measuring seat being mounted on the measuring platform, and a placement seat being provided above the measuring seat, a clamping seat for limiting the position of the automobile scraper arm being slidably connected to the measuring platform, a first electric push rod for adjusting the measuring height of the clamping seat being provided on the measuring platform, and pressure sensors being installed on both sides of the measuring assembly; Two marking seats are slidably connected to the measuring platform, and a rotatable first mounting cylinder, a second mounting cylinder and a cleaning sheet are respectively provided on the marking seats. A first marking pen is slidably connected in the first mounting cylinder, and a second marking pen is slidably connected in the second mounting cylinder. A gear ring is fixed on the first mounting cylinder and the second mounting cylinder. A rack meshing with the gear ring is slidably connected to the marking seat, and an adjustment component for adjusting the position of the rack is provided in the marking seat.

[0006] As an optional solution of the automobile scraper arm torsion angle measuring device described in the present invention, wherein: a first interference frame is provided on one side of the first mounting tube, and a second interference frame is provided on one side of the second mounting tube, and the first mounting tube and the second mounting tube are both rotatably connected with a interference component, the second interference frame and the first interference frame both interfere with the interference component, the first interference frame is elastically connected to the marking seat through a third spring, and the second interference frame is elastically connected to the marking seat through a second spring, the interference component includes a interference bracket, the interference bracket is slidably connected to the marking seat, a first spring is connected between the marking seat and the interference bracket, and the second mounting tube and the first mounting tube are both rotatably connected to one end of the interference bracket.

[0007] As an optional solution of the automobile scraper arm torsion angle measuring device described in the present invention, wherein: a fourth spring is connected between the first marking pen and the first mounting cylinder, a fifth spring is connected between the second marking pen and the second mounting cylinder, an L-type interference frame is provided in the marking seat, a seventh spring is connected between the L-type interference frame and the marking seat, a conical interference wedge is provided on one side of the L-type interference frame, a second electric push rod is fixed on the measuring table, the second electric push rod is electrically connected to the two pressure sensors through a wire, and the piston rod end of the second electric push rod is fixedly connected to the conical interference wedge.

[0008] As an optional solution of the automobile scraper arm torsion angle measuring device described in the present invention, wherein: the marking seat is rotatably connected to a rotating rod, a torsion spring is connected between the rotating rod and the marking seat, the cleaning sheet is fixed on the rotating rod, and a contact sheet is fixed to the lower end of the rotating rod, and the contact sheet contacts a third contact frame, the third contact frame is elastically connected to the marking seat through a sixth spring, and a plurality of first arc-shaped contact blocks are fixed on the L contact frame, and one end of the third contact frame is opposite to the first arc-shaped contact block.

[0009] As an optional solution of the automobile scraper arm torsion angle measuring device described in the present invention, wherein: a second guide rod is fixed in the measuring platform, the two marking seats are elastically connected to the second guide rod through an eighth spring, the lower end of the marking seat abuts against a fourth interference frame, the fourth interference frame is elastically connected to the measuring platform through a tenth spring, and a third interference wedge is fixed to one end of the fourth interference frame, the third interference wedge is located below the piston rod of the first electric push rod, and the first electric push rod is elastically connected to the clamping seat through a ninth spring.

[0010] As an optional solution of the automobile wiper arm torsion angle measuring device described in the present invention, the adjustment component includes an L-shaped push block, the L-shaped push block is fixed on the fourth interference frame, and a first mounting bracket is provided on one side of the L-shaped push block, the first mounting bracket is fixedly connected to the rack, and an eleventh spring is connected between the first mounting bracket and the marking seat.

[0011] As an optional solution of the automobile wiper arm torsion angle measuring device described in the present invention, the adjustment component includes a second mounting bracket, the second mounting bracket is fixedly connected to the rack, the second mounting bracket is elastically connected to the marking seat through a twelfth spring, and a plurality of second arc-shaped interference blocks are fixed on the second mounting bracket, and a first interference bar is fixed on one side of the L-shaped interference frame, and the first interference bar is located below the second arc-shaped interference block.

[0012] As an optional solution of the automobile wiper arm torsion angle measuring device described in the present invention, wherein: both sides of the clamping seat are slidably connected with a first guide rod, one end of the first guide rod is fixed with an L-shaped clamping block, a thirteenth spring is connected between the first guide rod and the clamping seat, and a fourth interference block is fixed on the first guide rod.

[0013] As an optional solution of the automobile scraper arm torsion angle measuring device described in the present invention, a resistance rod is slidably connected to the clamping seat, a fourteenth spring is connected between the resistance rod and the clamping seat, and the upper end of the resistance rod is located below the fourth resistance block.

[0014] As an optional solution of the automobile scraper arm torsion angle measuring device described in the present invention, the measuring component further includes a rotating column and a pointer rotating block, the rotating column and the pointer rotating block are both rotatably connected to the measuring seat, a gear is fixed on the rotating column, the placement seat is fixedly connected to the rotating column, a tooth groove is provided on the pointer rotating block, the gear and the tooth groove are engaged with each other, and a second interference bar is fixed on both sides of the pointer rotating block, and the second interference bar is opposite to the pressure sensor.

[0015] The present invention has the following beneficial effects: 1. In the automobile scraper arm torsion angle measuring device, when the detection height of the clamping seat is adjusted by the first electric push rod, the L-shaped clamping block can be used to firmly fix the automobile scraper arm on the clamping seat and the automobile scraper arm can be placed on the measuring assembly for torsion angle measurement. At the same time, when the piston rod end of the first electric push rod moves downward, it interferes with the third interference wedge block, so that the two marking seats can drive the first marking pen and the second marking pen to move horizontally relative to the automobile scraper arm. The first marking pen and the second marking pen can use markers to make marks. When the automobile scraper arm detects that the torsion angle is unqualified, the first marking pen can be used to mark the unqualified products with small torsion angle deviation values, so that subsequent staff can distinguish between unqualified products and qualified products. When the measuring component undergoes angular deflection during the measurement process, it can achieve the purpose of interfering with the corresponding pressure sensor. The greater the pressure value detected by the pressure sensor, the longer the piston rod of the second electric push rod extends, so that when the conical interference wedge collides with the L interference frame, the moving distance of the L interference frame can be adjusted, so that the L interference frame can be able to interfere with the first interference frame, making it convenient for the first marking pen to automatically mark the upper and lower surfaces of the side of the product with unqualified torsion angle at the same time.

[0016] 2. In this automobile scraper arm torsion angle measurement device, in order to further subdivide the torsion angle deviation values of unqualified automobile scraper arms, qualified products with large torsion angle deviation values can be marked by using a first marking pen and a second marking pen together. The side of the unqualified product marked by the first marking pen and the second marking pen can intuitively prompt the staff to which side of the automobile scraper arm to correct; When the L-shaped conflict frame conflicts with the first conflict frame and then continues to conflict with the second conflict frame, prompting the first marking pen to mark, the second marking pen can also automatically mark the upper and lower surfaces of the side of the product with unqualified torsion angle at the same time, making it convenient for staff to distinguish the correction direction when correcting the car wiper arm with unqualified torsion angle.

[0017] 3. In the automobile scraper arm torsion angle measuring device, when the cleaning sheet rotates, it can, on the one hand, clean the surface of the automobile scraper arm at the marking location, reducing dust and impurities adhering to the marking area, thereby improving the quality and clarity of the markings of unqualified products by the first and second marking pens; on the other hand, it can contact the pen tips of the first and second marking pens to remove impurities adhering to the pen tips, thereby improving the marking effect of the first and second marking pens; When the L-shaped friction frame is moved upward by the friction, the third friction frame can intermittently interfere with the first arc-shaped friction blocks fixed on the L-shaped friction frame, prompting the rotating rod to drive the cleaning sheet to swing back and forth for cleaning, thereby greatly improving the cleaning quality and efficiency.

[0018] 4. In the automobile scraper arm torsion angle measuring device, the first mounting cylinder and the second mounting cylinder are both rotatably connected to the interference bracket of the interference assembly, so that the first marking pen and the second marking pen can also rotate. Through the cooperation of the ring gear, the rack and the adjustment assembly, the adjustment assembly can drive the first mounting cylinder and the second mounting cylinder to rotate during the reciprocating motion. The pen tips of the first marking pen and the second marking pen can be rotated on the cleaning sheet when cleaning, which greatly improves the cleaning quality of the pen tips of the first marking pen and the second marking pen and improves the marking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0020] Figure 2 It is a cross-sectional view of the structure of the present invention.

[0021] Figure 3 Schematic diagram of the measurement component structure of the present invention.

[0022] Figure 4 It is a schematic diagram of the structure of the tapered interference wedge of the present invention.

[0023] Figure 5 It is a schematic diagram of the marking seat structure of the present invention.

[0024] Figure 6 It is a schematic diagram of the internal structure of the marking seat of the present invention.

[0025] Figure 7 This is one of the structural diagrams of the regulating component of the present invention.

[0026] Figure 8 This is the second structural diagram of the regulating component of the present invention.

[0027] Figure 9 Schematic diagram of the third abutment frame structure of the present invention.

[0028] Figure 10 This is a schematic structural diagram of the first marking pen and the second marking pen of the present invention.

[0029] In the figure: 1. Measuring table; 101. Measuring seat; 102. Rotating column; 103. Pointer rotating block; 104. Placement seat; 105. Gear; 106. Tooth groove; 107. Second contact strip; 2. Fourteenth spring; 3. Clamping seat; 4. First electric push rod; 5. Pressure sensor; 6. Marking seat; 61. L-shaped push block; 62. First mounting bracket; 64. Eleventh spring; 65. Second mounting bracket; 67. Twelfth spring; 68. Second arc-shaped contact block; 69. First contact strip; 7. First marking pen; 71. Second marking pen; 8. First mounting cylinder; 81. Second mounting cylinder; 9. Cleaning sheet; 10. L-shaped contact frame; 11. Conical contact wedge; 12. Second electric push rod Push rod; 13. Interference bracket; 14. First spring; 15. Second spring; 16. First interference frame; 161. Second interference frame; 17. Fourth spring; 18. Third spring; 19. Fifth spring; 20. Rotating rod; 21. Torsion spring; 22. Interference piece; 23. Third interference frame; 24. Sixth spring; 25. First arc-shaped interference block; 26. Seventh spring; 27. Gear ring; 28. Second guide rod; 29. Eighth spring; 30. Fourth interference frame; 31. Ninth spring; 32. Tenth spring; 33. Third interference wedge; 34. First guide rod; 35. L-shaped clamping block; 36. Thirteenth spring; 37. Interference rod; 38. Fourth interference block; 39. Rack. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0031] For example 1, please refer to Figures 1 to 10 A device for measuring the torsion angle of an automobile scraper arm comprises a measuring platform 1 and a measuring assembly. The measuring assembly comprises a measuring seat 101, which is mounted on the measuring platform 1 and provided with a placement seat 104 above the measuring seat 101. A clamping seat 3 for limiting the position of the automobile scraper arm is slidably connected to the measuring platform 1. A first electric push rod 4 for adjusting the measuring height of the clamping seat 3 is provided on the measuring platform 1. Pressure sensors 5 are installed on both sides of the measuring assembly. Two marking seats 6 are slidably connected to the measuring table 1, and the marking seats 6 are respectively provided with a rotatable first mounting cylinder 8, a second mounting cylinder 81 and a cleaning sheet 9. The first mounting cylinder 8 is slidably connected to the first marking pen 7, and the second mounting cylinder 81 is slidably connected to the second marking pen 71. A gear ring 27 is fixed on the first mounting cylinder 8 and the second mounting cylinder 81. A rack 39 meshing with the gear ring 27 is slidably connected to the marking seat 6, and an adjustment component for adjusting the position of the rack 39 is provided in the marking seat 6.

[0032] A first interference frame 16 is provided on one side of the first mounting tube 8, and a second interference frame 161 is provided on one side of the second mounting tube 81. The first mounting tube 8 and the second mounting tube 81 are both rotatably connected with a interference component. The second interference frame 161 and the first interference frame 16 both interfere with the interference component. The first interference frame 16 is elastically connected to the marking seat 6 through the third spring 18, and the second interference frame 161 is elastically connected to the marking seat 6 through the second spring 15. The interference component includes a interference bracket 13, which is slidably connected to the marking seat 6. A first spring 14 is connected between the marking seat 6 and the interference bracket 13. The second mounting tube 81 and the first mounting tube 8 are both rotatably connected to one end of the interference bracket 13.

[0033] A fourth spring 17 is connected between the first marking pen 7 and the first mounting tube 8, a fifth spring 19 is connected between the second marking pen 71 and the second mounting tube 81, an L-shaped contact frame 10 is provided in the marking seat 6, a seventh spring 26 is connected between the L-shaped contact frame 10 and the marking seat 6, a conical contact wedge 11 is provided on one side of the L-shaped contact frame 10, a second electric push rod 12 is fixed on the measuring table 1, the second electric push rod 12 is electrically connected to the two pressure sensors 5 through a wire, and the piston rod end of the second electric push rod 12 is fixedly connected to the conical contact wedge 11.

[0034] A second guide rod 28 is fixed inside the measuring table 1, and the two marking seats 6 are elastically connected to the second guide rod 28 through the eighth spring 29. The lower end of the marking seat 6 is in contact with the fourth contact frame 30, and the fourth contact frame 30 is elastically connected to the measuring table 1 through the tenth spring 32, and a third contact wedge 33 is fixed to one end of the fourth contact frame 30. The third contact wedge 33 is located below the piston rod of the first electric push rod 4, and the first electric push rod 4 is elastically connected to the clamping seat 3 through the ninth spring 31.

[0035] Both sides of the clamping seat 3 are slidably connected with a first guide rod 34, one end of the first guide rod 34 is fixed with an L-shaped clamping block 35, a thirteenth spring 36 is connected between the first guide rod 34 and the clamping seat 3, and a fourth interference block 38 is fixed on the first guide rod 34.

[0036] A resisting rod 37 is slidably connected to the clamping seat 3 , a fourteenth spring 2 is connected between the resisting rod 37 and the clamping seat 3 , and an upper end of the resisting rod 37 is located below the fourth resisting block 38 .

[0037] The measuring assembly also includes a rotating column 102 and a pointer rotating block 103. The rotating column 102 and the pointer rotating block 103 are both rotatably connected to the measuring base 101. A gear 105 is fixed on the rotating column 102. The placement base 104 is fixedly connected to the rotating column 102. A tooth groove 106 is provided on the pointer rotating block 103. The gear 105 and the tooth groove 106 are engaged with each other. A second interference bar 107 is fixed on both sides of the pointer rotating block 103. The second interference bar 107 is opposite to the pressure sensor 5.

[0038] When measuring the torsion angle of the automobile scraper arm, refer to Figure 1-Figure 7 , clamp the car scraper arm on the clamping seat 3, and the piston rod of the first electric push rod 4 moves downward, prompting the ninth spring 31 to drive the clamping seat 3 to slide vertically on the measuring table 1. At the same time, the lower end of the interference rod 37 contacts the measuring table 1, and the fourteenth spring 2 accumulates force, prompting the upper end of the interference rod 37 to contact the fourth interference block 38, so that the first guide rod 34 drives the L-shaped clamping block 35 to move horizontally to firmly clamp the car scraper arm in the clamping seat 3, which can prevent the car scraper arm from loosening during the torsion angle measurement process and affecting the measurement accuracy. At the same time, when the piston rod of the first electric push rod 4 continues to move downward, the ninth spring 31 accumulates force, and the piston rod of the first electric push rod 4 comes into conflict with the third interference wedge 33, prompting the third interference wedge 33 to drive the fourth interference frame 30 to move horizontally and come into conflict with the lower ends of the two marking seats 6. The tenth spring 32 accumulates force, and the two marking seats 6 slide close to each other on the second guide rod 28. The eighth spring 29 accumulates force, so that the first marking pen 7 and the second marking pen 71 can both approach the upper and lower surfaces of the car wiper arm; refer to Figure 3, the qualified automobile scraper arm is in a horizontal state as a whole or has a small torsion amplitude. The surface of the qualified automobile scraper arm fits on the placement seat 104, and the placement seat 104 will not have a large torsion amplitude. If the automobile scraper arm is unqualified, it will twist greatly. When the automobile scraper arm contacts the surface of the placement seat 104, the automobile scraper arm needs to fit completely with the surface of the placement seat 104, which will cause the placement seat 104 to twist with a certain torsion angle, so that the rotating column 102 rotates on the measuring seat 101, driving the gear 105 to rotate synchronously. When the tooth groove 106 is engaged with the gear 105, the pointer rotating block 103 will deflect on the torsion angle value reference line set on the placement seat 104. The torsion angle value reference line has positive and negative value ends. A negative number indicates that the torsion angle of the automobile scraper arm is too small, and a positive number indicates that the torsion angle of the automobile scraper arm is too large. A qualified torsion angle range is set between the negative and positive torsion angle values. When the pointer rotating block 103 falls into the range, it indicates that the measured torsion angle of the automobile scraper arm is qualified. On the contrary, the deflection of the pointer rotating block 103 does not fall into the range, which indicates that the torsion angle of the automobile scraper arm is unqualified.

[0039] refer to Figure 4-10 When the measuring end of the automobile scraper arm is against the placement seat 104 in the measuring assembly, the clamping seat 3 stops moving. When the pointer rotating block 103 falls into the qualified torsion angle value reference line range, it means that the automobile scraper arm is qualified and no marking is required. The automobile scraper arm can be directly taken out by adjusting the height of the first electric push rod 4. When the deflection angle of the pointer rotating block 103 is large, close to the negative or positive range of the reference line, the second contact bar 107 can be deflected to contact the corresponding pressure sensor 5. The pressure sensor 5 is connected to the PLC controller via wireless signals or wires. The PLC controller adjusts the first contact bar 107 according to the received pressure information. The second electric push rod 12 is adjusted. The greater the pressure value detected by the pressure sensor 5, the longer the piston rod of the second electric push rod 12 extends, causing the conical contact wedge 11 to contact the L contact frame 10 of one of the marking seats 6, prompting the L contact frame 10 to move upward, and the seventh spring 26 to store force, causing the L contact frame 10 to contact the first contact frame 16. The second spring 15 stores force, prompting the first contact frame 16 to move horizontally and contact the two contact brackets 13. The first spring 14 stores force, prompting the first marking pen 7 elastically connected to the first mounting tube 8 by the fourth spring 17 to simultaneously mark the upper and lower surfaces of one side of the car wiper arm with unqualified torsion angle; When the deflection angle of the pointer rotating block 103 is too large, the pressure sensor 5 is subjected to a greater resistance force, which prompts the conical resistance wedge 11 to continue to resist the L resistance frame 10, so that the L resistance frame 10 resists the second resistance frame 161, and the second spring 15 accumulates force, and the second resistance frame 161 resists two of the resistance brackets 13. The first spring 14 accumulates force, prompting the second marking pen 71 elastically connected by the fifth spring 19 in the second mounting tube 81 to move, and automatically marks the upper and lower surfaces of one side of the unqualified automobile wiper arm at the same time. By the marks made by the first marking pen 7 and the second marking pen 71 on which side of the unqualified product, the staff can be intuitively prompted to which side of the automobile wiper arm to correct, which is convenient for the staff to distinguish automobile wiper arms with unqualified torsion angles and use appropriate correction force to correct the unqualified automobile wiper arms.

[0040] Example 2: This example is an improvement based on Example 1. For details, please refer to Figures 1 to 10 The marking seat 6 is rotatably connected to a rotating rod 20, a torsion spring 21 is connected between the rotating rod 20 and the marking seat 6, the cleaning sheet 9 is fixed on the rotating rod 20, and a contact sheet 22 is fixed at the lower end of the rotating rod 20, and the contact sheet 22 contacts the third contact frame 23, and the third contact frame 23 is elastically connected to the marking seat 6 through a sixth spring 24. Several first arc-shaped contact blocks 25 are fixed on the L contact frame 10, and one end of the third contact frame 23 is opposite to the first arc-shaped contact block 25.

[0041] The first marking pen 7 and the second marking pen 71 are both markers. Some dust and dirt will adhere to the surface of the car wiper arm mark and the ends of the first marking pen 7 and the second marking pen 71, which will affect the quality of the mark and need to be cleaned before marking. When the L-shaped contact frame 10 is moved upward by the contact, it first causes several first arc-shaped contact blocks 25 to intermittently contact the third contact frame 23. The sixth spring 24 continuously accumulates force and whether it is elastic, so that the third contact frame 23 and the two contact pieces 22 are reciprocatingly contacted, so that the contact piece 22 drives the rotating rod 20 to deflect on the marking seat 6, so that the cleaning piece 9 rotates synchronously, and the torsion spring 21 continuously accumulates force and releases elastic force. On the one hand, it can clean the surface of the car wiper arm mark and reduce the dust and impurities attached to the marking area, which is beneficial to improving the quality and clarity of the first marking pen 7 and the second marking pen 71 marking unqualified products; on the other hand, it can contact the pen tips of the first marking pen 7 and the second marking pen 71, and can remove impurities attached to the pen tips, thereby improving the marking effect of the first marking pen 7 and the second marking pen 71.

[0042] Example 3: This example is an improvement made on the basis of Example 2. For details, please refer to Figures 1 to 10The adjustment assembly includes an L-shaped push block 61, which is fixed on the fourth interference frame 30, and a first mounting bracket 62 is provided on one side of the L-shaped push block 61. The first mounting bracket 62 is fixedly connected to the rack 39, and an eleventh spring 64 is connected between the first mounting bracket 62 and the marking seat 6.

[0043] In order to improve the cleaning effect of the cleaning sheet 9 on the pen tips of the first marking pen 7 and the second marking pen 71, the first marking pen 7 and the second marking pen 71 can automatically rotate during cleaning. Figures 1-9 When the lower end of the piston rod of the first electric push rod 4 is in reciprocating conflict with the third interference wedge 33, the purpose of driving the fourth interference frame 30 and the L-shaped push block 61 to move back and forth can be achieved. At the same time, the position of the marking seat 6 remains unchanged, prompting the L-shaped push block 61 to push the first mounting bracket 62 and the two racks 39 fixed on the first mounting bracket 62 to reciprocate, so that the eleventh spring 64 continuously accumulates and releases elastic force. The rack 39 can drive the ring gear 27 to rotate, prompting the first mounting tube 8 and the second mounting tube 81 to rotate synchronously, prompting the cleaning sheet 9 to work, and the first marking pen 7 and the second marking pen 71 can rotate automatically to improve the cleaning effect. The power provided by the first electric push rod 4 prompts the rack 39 to move back and forth indirectly, which can reduce the use of electrical equipment and improve energy saving and environmental protection effects.

[0044] Example 4: This example is an improvement made on the basis of Example 2. For details, please refer to Figures 1 to 10 The adjustment component also includes a technical solution, the adjustment component includes a second mounting bracket 65, the second mounting bracket 65 is fixedly connected to the rack 39, the second mounting bracket 65 is elastically connected to the marking seat 6 through the twelfth spring 67, and several second arc-shaped interference blocks 68 are fixed on the second mounting bracket 65. A first interference bar 69 is fixed on one side of the L interference frame 10, and the first interference bar 69 is located below the second arc-shaped interference block 68.

[0045] When the L-shaped resistance frame 10 is moved upward by resistance, it can drive the first resistance bar 69 to move synchronously, causing the first resistance bar 69 to intermittently resist against several second arc-shaped resistance blocks 68 fixed on the second mounting bracket 65, causing the second mounting bracket 65 to drive the rack 39 to move back and forth horizontally on the marking seat 6, and the twelfth spring 67 continuously accumulates and releases elastic force. The rack 39 can drive the gear ring 27 to rotate, causing the first mounting tube 8 and the second mounting tube 81 to rotate synchronously, causing the first marking pen 7 and the second marking pen 71 to rotate automatically when the cleaning sheet 9 is working, thereby improving the cleaning effect.

[0046] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0047] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A device for measuring the torsion angle of a car scraper arm, comprising a measuring platform (1) and a measuring assembly, characterized in that: The measuring assembly comprises a measuring seat (101), the measuring seat (101) being mounted on the measuring platform (1), and a placement seat (104) being provided above the measuring seat (101), a clamping seat (3) for limiting the position of a car wiper arm being slidably connected to the measuring platform (1), a first electric push rod (4) for adjusting the measuring height of the clamping seat (3) being provided on the measuring platform (1), and pressure sensors (5) being installed on both sides of the measuring assembly; Two marking seats (6) are slidably connected to the measuring table (1), and the marking seats (6) are respectively provided with a rotatable first mounting cylinder (8), a second mounting cylinder (81) and a cleaning sheet (9). A first marking pen (7) is slidably connected in the first mounting cylinder (8), and a second marking pen (71) is slidably connected in the second mounting cylinder (81). A gear ring (27) is fixed to the first mounting cylinder (8) and the second mounting cylinder (81). A rack (39) meshing with the gear ring (27) is slidably connected to the marking seat (6), and an adjustment component for adjusting the position of the rack (39) is provided in the marking seat (6).

2. The automobile scraper arm torsion angle measuring device according to claim 1, characterized in that: A first interference frame (16) is provided on one side of the first mounting tube (8), and a second interference frame (161) is provided on one side of the second mounting tube (81). The first mounting tube (8) and the second mounting tube (81) are both rotatably connected to an interference component. The second interference frame (161) and the first interference frame (16) both interfere with the interference component. The first interference frame (16) is elastically connected to the marking seat (6) through a third spring (18). The second interference frame (161) is elastically connected to the marking seat (6) through a second spring (15). The interference component includes a interference bracket (13). The interference bracket (13) is slidably connected to the marking seat (6). A first spring (14) is connected between the marking seat (6) and the interference bracket (13). The second mounting tube (81) and the first mounting tube (8) are both rotatably connected to one end of the interference bracket (13).

3. The automobile scraper arm torsion angle measuring device according to claim 1, characterized in that: A fourth spring (17) is connected between the first marking pen (7) and the first mounting cylinder (8), a fifth spring (19) is connected between the second marking pen (71) and the second mounting cylinder (81), an L-type contact frame (10) is provided in the marking seat (6), a seventh spring (26) is connected between the L-type contact frame (10) and the marking seat (6), a conical contact wedge (11) is provided on one side of the L-type contact frame (10), a second electric push rod (12) is fixed on the measuring table (1), the second electric push rod (12) is electrically connected to the two pressure sensors (5) through a wire, and the piston rod end of the second electric push rod (12) is fixedly connected to the conical contact wedge (11).

4. The automobile scraper arm torsion angle measuring device according to claim 3, characterized in that: The marking seat (6) is rotatably connected to a rotating rod (20), a torsion spring (21) is connected between the rotating rod (20) and the marking seat (6), the cleaning sheet (9) is fixed to the rotating rod (20), a contact sheet (22) is fixed to the lower end of the rotating rod (20), a third contact frame (23) is contacted on the contact sheet (22), the third contact frame (23) is elastically connected to the marking seat (6) via a sixth spring (24), a plurality of first arc-shaped contact blocks (25) are fixed to the L-shaped contact frame (10), and one end of the third contact frame (23) is opposite to the first arc-shaped contact block (25).

5. The automobile scraper arm torsion angle measuring device according to claim 3, characterized in that: A second guide rod (28) is fixed in the measuring platform (1), and the two marking seats (6) are elastically connected to the second guide rod (28) through an eighth spring (29). The lower end of the marking seat (6) is in contact with a fourth contact frame (30), and the fourth contact frame (30) is elastically connected to the measuring platform (1) through a tenth spring (32). A third contact wedge (33) is fixed to one end of the fourth contact frame (30), and the third contact wedge (33) is located below the piston rod of the first electric push rod (4). The first electric push rod (4) is elastically connected to the clamping seat (3) through a ninth spring (31).

6. The automobile scraper arm torsion angle measuring device according to claim 5, characterized in that: The adjustment assembly includes an L-shaped push block (61), the L-shaped push block (61) is fixed on the fourth abutment frame (30), and a first mounting bracket (62) is provided on one side of the L-shaped push block (61), the first mounting bracket (62) is fixedly connected to the rack (39), and an eleventh spring (64) is connected between the first mounting bracket (62) and the marking seat (6).

7. The automobile scraper arm torsion angle measuring device according to claim 3, characterized in that: The adjustment assembly includes a second mounting bracket (65), the second mounting bracket (65) is fixedly connected to the rack (39), the second mounting bracket (65) is elastically connected to the marking seat (6) through a twelfth spring (67), a plurality of second arc-shaped interference blocks (68) are fixed on the second mounting bracket (65), and a first interference strip (69) is fixed on one side of the L-shaped interference frame (10), and the first interference strip (69) is located below the second arc-shaped interference block (68).

8. The automobile scraper arm torsion angle measuring device according to claim 1, characterized in that: Both sides of the clamping seat (3) are slidably connected to a first guide rod (34), one end of the first guide rod (34) is fixed with an L-shaped clamping block (35), a thirteenth spring (36) is connected between the first guide rod (34) and the clamping seat (3), and a fourth interference block (38) is fixed on the first guide rod (34).

9. The automobile scraper arm torsion angle measuring device according to claim 8, characterized in that: A resisting rod (37) is slidably connected to the clamping seat (3), a fourteenth spring (2) is connected between the resisting rod (37) and the clamping seat (3), and the upper end of the resisting rod (37) is located below the fourth resisting block (38).

10. The automobile scraper arm torsion angle measuring device according to claim 1, characterized in that: The measuring assembly further comprises a rotating column (102) and a pointer rotating block (103), wherein the rotating column (102) and the pointer rotating block (103) are both rotatably connected to the measuring seat (101), a gear (105) is fixed on the rotating column (102), the placement seat (104) is fixedly connected to the rotating column (102), a tooth groove (106) is provided on the pointer rotating block (103), the gear (105) and the tooth groove (106) are meshed with each other, and a second contact bar (107) is fixed on both sides of the pointer rotating block (103), and the second contact bar (107) is opposite to the pressure sensor (5).

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