Large forge piece length measuring device and use method thereof

Abstract

The invention discloses a large forge piece length measuring device and a use method thereof, and the device comprises a conveying assembly which comprises a conveying belt, side plates disposed at the two sides of the conveying belt, and two supports disposed at the bottoms of the side plates; and at least one group of measuring assemblies are arranged on the side plates, and each measuring assembly comprises a guide rod which is arranged on the two side plates in a penetrating manner and length measuring pieces which are symmetrically arranged at the two ends of the guide rod. The length measuring device can measure the lengths of the forgings in the forge piece conveying process, manual one-by-one measurement is not needed, the measuring efficiency is improved, when the forgings slide across the waved plate, the contact plates on the two sides of the guide rod move to abut against the two ends of the forgings, allowance can be reserved for the forgings of different lengths, and the measuring accuracy is improved. The size of forgings with different lengths can be effectively measured, and then the displacement L1 and the displacement L2 of the contact plate are measured through the pull rope sensor, so that the accurate length L4 of the forgings is calculated, and errors caused by influence of human factors on measurement accuracy are avoided.

Description

Technical Field

[0001] The invention relates to the technical field of forging length measurement, in particular to a large forging length measuring device and a use method thereof. Background Art

[0002] Large forgings are indispensable blanks for manufacturing key components of major technical equipment. They have a long production cycle, high technical difficulty and high price. During the forging process, the length of the forging needs to be measured to facilitate the next step of forging processing. The existing forging length measurement method generally uses a measuring rod for manual measurement, which can only be measured one by one. Not only does it require frequent use of the measuring rod, but the measurement accuracy is affected by human factors and there are some errors. Therefore, the present invention proposes a large forging length measuring device and a method of using the same to solve the above problems. Summary of the invention

[0003] The object of the present invention is to provide a large forging length measuring device and a method for using the same, so as to solve the problem that the existing forging length measuring method proposed in the above background technology generally adopts manual measurement with a measuring rod, and can only measure one by one during measurement, which not only requires frequent use of the measuring rod, but also the measurement accuracy is affected by human factors and there are some errors.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: A large forging length measuring device comprises a conveying assembly, including a conveying belt, side plates arranged on both sides of the conveying belt, and two brackets arranged at the bottom of the side plates; A measuring assembly, at least one group of which is arranged on the side plates, and the measuring assembly comprises guide rods interspersed on the two side plates and length measuring pieces symmetrically arranged at both ends of the guide rods; The length measuring member comprises a first rack and a contact plate slidably arranged in the middle of the guide rod, a second rack inserted on the guide rod, a gear set arranged on the guide rod, and a pull rope sensor; The first rack is located on the inner side of the guide rod, the contact plate is located on the outer side of the guide rod, the first rack and the contact plate are connected by a spring, the second rack is located on one side of the first rack and close to the side plate, the second rack is perpendicular to the first rack and is driven by the gear set, a wave plate is provided on the top of the second rack, and the pull rope sensor is located on the outer side of the contact plate and connected to it.

[0005] As a preferred solution of the present invention, wherein: a slider is provided at the bottom end of the contact plate, a slide groove is provided in the middle of the guide rod, both side walls of the slide groove are provided with strip-shaped protrusions, both side surfaces of the first rack and the slider are provided with grooves matching with the strip-shaped protrusions of the slide groove, and the first rack and the slider of the contact plate are both clamped in the slide groove of the guide rod to constitute the first rack and the contact plate slidingly arranged on the guide rod.

[0006] As a preferred solution of the present invention, the spring is located in the slide groove of the guide rod, one end of the spring is connected to the first rack, and the other end of the spring is connected to the slider of the contact plate.

[0007] As a preferred solution of the present invention, wherein: the pull-wire sensor is installed on the guide rod, and the pull wire of the pull-wire sensor is connected to the slider at the bottom end of the contact plate.

[0008] As a preferred solution of the present invention, a slot is provided on the guide rod, both side walls of the slot are provided with protrusions, both side surfaces of the second rack are provided with limiting grooves matching with the protrusions in the slot, the second rack is inserted into the slot of the guide rod, and the protrusion of the slot is placed in the limiting groove of the second rack.

[0009] As a preferred solution of the present invention, a spring telescopic rod is further provided on one side of the second rack, one end of the spring telescopic rod is connected to the second rack, and the other end of the spring telescopic rod is fixed to the guide rod.

[0010] As a preferred solution of the present invention, the gear set includes a round shaft, a large gear and a small gear interspersed on the round shaft, the large gear is connected to the small gear, both ends of the round shaft are connected with a U-shaped plate, the gear set is installed on the guide rod through the U-shaped plate, the large gear of the gear set is meshed with the first rack, and the small gear is meshed with the second rack.

[0011] As a preferred solution of the present invention, the middle part of the corrugated plate is arched and the two sides are concave, and the top end of the second rack is connected to the middle part of the corrugated plate.

[0012] As a preferred solution of the present invention, the rotating shafts at both ends of the conveyor belt are rotatably mounted on the side plate, a driving device is also provided on one side of the side plate, the output end of the driving device is connected to a rotating shaft of the conveyor belt, and the two brackets are symmetrically arranged at both ends of the side plate.

[0013] A method for using a large forging length measuring device comprises the following steps: S1. Place large forgings of different lengths on a conveyor belt for transportation. When the forgings move to the corrugated plate, the forgings slide along the top of the corrugated plate, and the corrugated plate is pushed by the forgings, so that the second rack moves downward and compresses the spring telescopic rod; S2. When the second rack moves downward, the second rack drives the small gear and the large gear to rotate synchronously, and the large gear drives the first rack to slide inside the guide rod until one end of the first rack connection spring moves to the gear set; S3. When the first rack slides toward the inner side of the guide rod, the first rack drives the slider and the contact plate to slide toward the inner side of the guide rod through the spring until the contact plate abuts against the end of the forging and stops moving. The first rack continues to move and stretches the spring. When the contact plate moves, it pulls the rope of the rope sensor and measures the moving distance of the contact plate. S4. The moving distance of one contact plate on the guide rod is measured by the pull rope sensor as L1, the moving distance of the other contact plate is L2, the distance between the two contact plates on the guide rod when they are in the initial position is L3, and the length of the forging is L4, that is, the length of the forging L4 = L3-L1-L2; S5. When the forging leaves the corrugated plate, the spring telescopic rod stretches and pushes the second rack to move upward to restore to the initial position. The second rack drives the small gear and the large gear to rotate synchronously, and the large gear drives the first rack to slide to the outside of the guide rod, pushing the contact plate and the slider back to the initial position for the next forging measurement.

[0014] The length measuring device of the present invention can measure the length of forgings during their transportation without manual measurement one by one, thereby improving the measurement efficiency. When the forgings slide over the wave plate, the contact plates on both sides of the guide rod move to contact the two ends of the forgings, and can leave margins for forgings of different lengths, thereby ensuring that the sizes of forgings of different lengths can be effectively measured. Specifically, for forgings with longer lengths, after the contact plate contacts the forgings, the first rack will continue to move toward the side plate, so that the contact plate can be pressed against the end of the forging. For forgings with shorter lengths, the contact plate can be moved to the U-shaped plate, so that it can still ensure that it contacts the end of the forging. The displacements L1 and L2 of the contact plate are measured by the pull rope sensor, thereby calculating the accurate forging length L4, thereby avoiding errors caused by human factors affecting the measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the enlarged structure at A in the middle; Figure 3 For the present invention Figure 1 A schematic diagram of the enlarged structure at B in the middle; Figure 4It is a schematic diagram of the structure of the measuring assembly and the side plate of the present invention; Figure 5 It is a schematic diagram of the cross-sectional structure of the guide rod of the present invention; Figure 6 It is a schematic structural diagram of the second rack, the slot and the spring telescopic rod of the present invention; Figure 7 It is a schematic diagram of the structure of the gear set of the present invention.

[0016] In the figure: 1. conveying assembly; 11. conveyor belt; 12. side plate; 13. bracket; 14. driving device; 2. measuring assembly; 21. guide rod; 211. slide groove; 212. slot; 213. bump; 22. length measuring piece; 221. first rack; 222. contact plate; 2221. slider; 223. second rack; 2231. limit groove; 224. gear set; 2241. circular shaft; 2242. large gear; 2243. small gear; 2244. U-shaped plate; 225. pull rope sensor; 226. spring; 227. wave plate; 228. spring telescopic rod. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1-Figure 7 , a large forging length measuring device, comprising a conveying assembly 1, including a conveying belt 11, side plates 12 arranged on both sides of the conveying belt 11, and two brackets 13 arranged at the bottom of the side plates 12; The measuring assembly 2 is arranged on the side plate 12 in at least one group. In a specific implementation, the measuring assembly 2 is arranged in two groups, which can perform secondary measurement on the forging to ensure accuracy. The measuring assembly 2 includes a guide rod 21 interlaced on the two side plates 12 and a length measuring piece 22 symmetrically arranged at both ends of the guide rod 21; It should be noted that both side plates 12 are provided with square holes matched with the guide rods 21, the guide rods 21 are inserted into the square holes of the side plates 12, and the bottom of the square holes of the side plates 12 is provided with square notches, when the first rack 221 slides along the guide rods 21 toward the inside thereof, the first rack 221 and the teeth at the bottom thereof can pass through the side plates 12, and the guide rods 21 are fixedly connected to the side plates 12 by right-angle bent plates and bolts; The length measuring member 22 includes a first rack 221 and a contact plate 222 slidably disposed in the middle of the guide rod 21 , a second rack 223 inserted on the guide rod 21 , a gear set 224 disposed on the guide rod 21 , and a pull rope sensor 225 ; The first rack 221 is located on the inner side of the guide rod 21, and the contact plate 222 is located on the outer side of the guide rod 21. The first rack 221 and the contact plate 222 are connected by a spring 226. The second rack 223 is located on one side of the first rack 221 and close to the side plate 12. The second rack 223 is perpendicular to the first rack 221 and is driven by a gear set 224. A wave plate 227 is provided on the top of the second rack 223. The pull rope sensor 225 is located on the outer side of the contact plate 222 and is connected thereto. The pull rope sensor 225 is used to measure the displacement of the contact plate 222.

[0019] In this embodiment, a slider 2221 is provided at the bottom end of the contact plate 222, a slide groove 211 is provided in the middle of the guide rod 21, both side walls of the slide groove 211 are provided with strip-shaped protrusions, both side surfaces of the first rack 221 and the slider 2221 are provided with grooves matching with the strip-shaped protrusions of the slide groove 211, and the first rack 221 and the slider 2221 of the contact plate 222 are both clamped in the slide groove 211 of the guide rod 21, so as to form a sliding arrangement of the first rack 221 and the contact plate 222 on the guide rod 21; The spring 226 is located in the slide groove 211 of the guide rod 21, one end of the spring 226 is connected to the first rack 221, and the other end of the spring 226 is connected to the slider 2221 of the contact plate 222; The pull rope sensor 225 is installed on the guide rod 21, and the pull rope of the pull rope sensor 225 is connected to the slider 2221 at the bottom end of the contact plate 222; It should be noted that when the contact plate 222 moves inward along the guide rod 21 , the contact plate 222 pulls the rope of the rope sensor 225 , thereby measuring the displacement of the contact plate 222 , and calculating the length of the forging by the displacement of the contact plate 222 .

[0020] In this embodiment, a slot 212 is provided on the guide rod 21, and both side walls of the slot 212 are provided with protrusions 213, and both side surfaces of the second rack 223 are provided with limiting grooves 2231 that match the protrusions 213 in the slot 212. The second rack 223 is inserted into the slot 212 of the guide rod 21, and the protrusions 213 of the slot 212 are placed in the limiting grooves 2231 of the second rack 223. The moving distance of the second rack 223 is limited by the protrusions 213 in the slot 212 and the limiting grooves 2231 of the second rack 223, and the second rack 223 can be prevented from being separated from the slot 212 of the guide rod 21. A spring telescopic rod 228 is also provided on one side of the second rack 223, one end of the spring telescopic rod 228 is connected to the second rack 223, and the other end of the spring telescopic rod 228 is fixed to the guide rod 21; It should be noted that a connecting plate is provided at the upper end of one side of the second rack 223 relative to the teeth, and a thread is provided at the top of the spring telescopic rod 228. The top of the spring telescopic rod 228 passes through the connecting plate and is fixed by a nut, so that the spring telescopic rod 228 is connected to the second rack 223.

[0021] In this embodiment, the gear set 224 includes a circular shaft 2241, a large gear 2242 and a small gear 2243 inserted on the circular shaft 2241, the large gear 2242 is connected to the small gear 2243, both ends of the circular shaft 2241 are connected to U-shaped plates 2244, the gear set 224 is installed on the guide rod 21 through the U-shaped plate 2244, the large gear 2242 of the gear set 224 is meshed with the first rack 221, and the small gear 2243 is meshed with the second rack 223; It should be noted that both ends of the circular shaft 2241 are provided with threads, and both ends of the circular shaft 2241 pass through the U-shaped plate 2244 and are fixed by threads. The U-shaped plate 2244 is clamped on the guide rod 21 and fixed by bolts. When the second rack 223 moves downward to the lowest point, the small gear 2243 and the large gear 2242 rotate coaxially two circles, and one end of the first rack 221 connected to the spring 226 moves to the gear group 224, and the contact plate 222 can move to the U-shaped plate 2244.

[0022] In this embodiment, the middle part of the wave plate 227 is arched and the two sides are concave, and the top end of the second rack 223 is connected to the middle part of the wave plate 227. When the forging slides along the wave plate 227 to the middle part, the top end of the wave plate 227 is flush with the bottom of the forging, and the wave plate 227 pushes the second rack 223 to move downward to the lowest point. At this time, the second rack 223 is driven by the gear set 224, and one end of the first rack 221 connected to the spring 226 slides along the guide rod 21 and moves to the gear set 224. Moreover, when the wave plate 227 is pressed down to the lowest point, the contact plate 222 can move to the U-shaped plate 2244 to ensure that the contact plate 222 can contact the end of the forging under any circumstances.

[0023] Specifically, the length difference of forgings produced is generally small and has a certain length range. The conveyor belt 11 can set the corresponding width according to the actual length range of the forgings. The width of the conveyor belt 11 is smaller than the length of the forgings. The forgings are placed on the conveyor belt 11 and their two ends can extend out of the outside of the wave plate 227. The maximum spacing between the contact plates 222 on both sides of the conveyor belt 11 is greater than the length of the forging. When the contact plate 222 moves to the end of the forging and contacts it, the length of the forging is measured.

[0024] In this embodiment, the rotating shafts at both ends of the conveyor belt 11 are rotatably mounted on the side plate 12. A driving device 14 is also provided on one side of the side plate 12. The output end of the driving device 14 is connected to a rotating shaft of the conveyor belt 11. The driving device 14 is a stepper motor. The output shaft of the stepper motor is connected to the rotating shaft of the conveyor belt 11 to provide power for the conveyor belt 11. Two brackets 13 are symmetrically arranged at both ends of the side plate 12.

[0025] The method for using the large forging length measuring device of the present invention comprises the following steps: S1. Place large forgings of different lengths on the conveyor belt 11 for transportation. When the forgings move to the wave plate 227, the forgings slide along the top of the wave plate 227, and the forgings push the wave plate 227, so that the second rack 223 moves downward and compresses the spring telescopic rod 228; S2. When the second rack 223 moves downward, the second rack 223 drives the small gear 2243 and the large gear 2242 to rotate synchronously, and the large gear 2242 drives the first rack 221 to slide toward the inside of the guide rod 21 until one end of the first rack 221 connected to the spring 226 moves to the gear set 224; S3. When the first rack 221 slides toward the inner side of the guide rod 21, the first rack 221 drives the slider 2221 and the contact plate 222 to slide toward the inner side of the guide rod 21 through the spring 226 until the contact plate 222 abuts against the end of the forging and stops moving. The first rack 221 continues to move and stretches the spring 226. When the contact plate 222 moves, it pulls the rope of the rope sensor 225 and measures the moving distance of the contact plate 222. S4, the moving distance of one contact plate 222 on the guide rod 21 is measured by the pull rope sensor 225 to be L1, the moving distance of the other contact plate 222 is L2, the distance between the two contact plates 222 on the guide rod 21 when they are in the initial position is L3, and the length of the forging is L4, that is, the length of the forging L4=L3-L1-L2; S5. When the forging leaves the wave plate 227, the spring telescopic rod 228 stretches and pushes the second rack 223 to move upward and return to the initial position. The second rack 223 drives the small gear 2243 and the large gear 2242 to rotate synchronously. The large gear 2242 drives the first rack 221 to slide toward the outside of the guide rod 21, pushing the contact plate 222 and the slider 2221 back to the initial position for the next forging measurement.

[0026] In summary, the large forging length measuring device measures the displacements L1 and L2 of the contact plate through a pull-wire sensor, thereby calculating the precise forging length L4. There is no need to manually measure one by one using a measuring rod, which not only improves the measurement efficiency but also ensures the measurement accuracy of the forging.

[0027] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A large forging length measuring device, characterized in that: include, A conveying assembly (1) comprising a conveying belt (11), side panels (12) arranged on both sides of the conveying belt (11), and two brackets (13) arranged at the bottom of the side panels (12); A measuring assembly (2), at least one group of which is arranged on the side plate (12), the measuring assembly (2) comprising a guide rod (21) interlaced on the two side plates (12) and a length measuring piece (22) symmetrically arranged at both ends of the guide rod (21); The length measuring member (22) comprises a first rack (221) and a contact plate (222) slidably arranged in the middle of the guide rod (21), a second rack (223) inserted in the guide rod (21), a gear set (224) arranged on the guide rod (21), and a pull rope sensor (225); The first rack (221) is located on the inner side of the guide rod (21), the contact plate (222) is located on the outer side of the guide rod (21), the first rack (221) and the contact plate (222) are connected via a spring (226), the second rack (223) is located on one side of the first rack (221) and close to the side plate (12), the second rack (223) is perpendicular to the first rack (221) and is driven by the gear set (224), a wave plate (227) is provided at the top of the second rack (223), and the pull rope sensor (225) is located on the outer side of the contact plate (222) and is connected thereto.

2. The large forging length measuring device according to claim 1, characterized in that: A slider (2221) is provided at the bottom end of the contact plate (222), a slide groove (211) is provided in the middle of the guide rod (21), both side walls of the slide groove (211) are provided with strip-shaped protrusions, both side surfaces of the first rack (221) and the slider (2221) are provided with grooves matching the strip-shaped protrusions of the slide groove (211), and the first rack (221) and the slider (2221) of the contact plate (222) are both clamped in the slide groove (211) of the guide rod (21), so that the first rack (221) and the contact plate (222) are slidably arranged on the guide rod (21).

3. The large forging length measuring device according to claim 2, characterized in that: The spring (226) is located in the slide groove (211) of the guide rod (21); one end of the spring (226) is connected to the first rack (221); and the other end of the spring (226) is connected to the slider (2221) of the contact plate (222).

4. The large forging length measuring device according to claim 3, characterized in that: The pull rope sensor (225) is mounted on the guide rod (21), and the pull rope of the pull rope sensor (225) is connected to a slider (2221) at the bottom end of the contact plate (222).

5. The large forging length measuring device according to claim 1 or 4, characterized in that: The guide rod (21) is provided with a slot (212), both side walls of the slot (212) are provided with protrusions (213), both side surfaces of the second rack (223) are provided with limiting grooves (2231) that match the protrusions (213) in the slot (212), the second rack (223) is inserted into the slot (212) of the guide rod (21), and the protrusions (213) of the slot (212) are placed in the limiting grooves (2231) of the second rack (223).

6. The large forging length measuring device according to claim 5, characterized in that: A spring telescopic rod (228) is also provided on one side of the second rack (223); one end of the spring telescopic rod (228) is connected to the second rack (223), and the other end of the spring telescopic rod (228) is fixed to the guide rod (21).

7. The large forging length measuring device according to claim 1 or 6, characterized in that: The gear set (224) comprises a circular shaft (2241), a large gear (2242) and a small gear (2243) interlaced on the circular shaft (2241); the large gear (2242) is connected to the small gear (2243); both ends of the circular shaft (2241) are connected to U-shaped plates (2244); the gear set (224) is mounted on the guide rod (21) via the U-shaped plates (2244); the large gear (2242) of the gear set (224) is meshed with the first rack (221); and the small gear (2243) is meshed with the second rack (223).

8. The large forging length measuring device according to claim 7, characterized in that: The middle part of the wave plate (227) is arched and the two sides are concave, and the top end of the second rack (223) is connected to the middle part of the wave plate (227).

9. The large forging length measuring device according to claim 1, characterized in that: The rotating shafts at both ends of the conveyor belt (11) are rotatably mounted on the side plate (12); a driving device (14) is also provided on one side of the side plate (12); an output end of the driving device (14) is connected to a rotating shaft of the conveyor belt (11); and two brackets (13) are symmetrically arranged at both ends of the side plate (12).

10. A method for using the large forging length measuring device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, placing large forgings of different lengths on a conveyor belt (11) for transportation, and when the forgings move to the corrugated plate (227), the forgings slide along the top of the corrugated plate (227), and the corrugated plate (227) is pushed by the forgings, so that the second rack (223) moves downward and compresses the spring telescopic rod (228); S2. When the second rack (223) moves downward, the second rack (223) drives the small gear (2243) and the large gear (2242) to rotate synchronously, and drives the first rack (221) to slide toward the inside of the guide rod (21) through the large gear (2242), until one end of the first rack (221) connected to the spring (226) moves to the gear set (224); S3, when the first rack (221) slides toward the inside of the guide rod (21), the first rack (221) drives the slider (2221) and the contact plate (222) to slide toward the inside of the guide rod (21) through the spring (226), until the contact plate (222) abuts against the end of the forging and stops moving, the first rack (221) continues to move and stretches the spring (226), and when the contact plate (222) moves, it pulls the rope of the rope sensor (225), and the moving distance of the contact plate (222) is measured; S4, measuring by the pull rope sensor (225) that the moving distance of one contact plate (222) on the guide rod (21) is L1, the moving distance of the other contact plate (222) is L2, the distance between the two contact plates (222) on the guide rod (21) when they are in the initial position is L3, and the length of the forging is L4, that is, the forging length L4=L3-L1-L2; S5. When the forging leaves the wave plate (227), the spring telescopic rod (228) stretches and pushes the second rack (223) to move upward to restore to the initial position, and the second rack (223) drives the small gear (2243) and the large gear (2242) to rotate synchronously, and the large gear (2242) drives the first rack (221) to slide toward the outside of the guide rod (21), pushing the contact plate (222) and the slider (2221) back to the initial position, and performing the next forging measurement.

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