A device for measuring the length of a large forging and its usage method

Abstract

The present invention discloses a large forging length measuring device and its usage method. The device includes a conveying assembly, which includes a conveyor belt, side plates arranged on both sides of the conveyor belt, and two brackets arranged at the bottom of the side plates; a measuring assembly, which is arranged on the side plates and the number of sets is at least one group. The measuring assembly includes a guide rod inserted through the two side plates and length measuring parts symmetrically arranged at both ends of the guide rod. The length measuring device of the present invention can measure the length of the forging during the transportation process of the forging, without manual measurement one by one, improving the measurement efficiency. When the forging slides over the corrugated plate, the contact plates on both sides of the guide rod move and abut against both ends of the forging, and there is a margin for forgings of different lengths to ensure that the sizes of forgings of different lengths can be effectively measured. Then, the displacement amounts L1 and L2 of the contact plates are measured by the pull rope sensor, so as to calculate the accurate length L4 of the forging, avoiding errors caused by the influence of human factors on the measurement accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of forging length measurement, in particular to a large forging length measurement device and its usage method. 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 cost. During the forging processing, it is necessary to measure the length of the forgings for the next step of processing. The existing forging length measurement methods generally use a measuring rod for manual measurement. When measuring, only one by one can be measured. Not only does it require frequent use of the measuring rod, but also the measurement accuracy is affected by human factors and there are some errors. Therefore, the present invention proposes a large forging length measurement device and its usage method to solve the above problems. Summary of the Invention

[0003] The purpose of the present invention is to provide a large forging length measurement device and its usage method to solve the problems in the above background art that the existing forging length measurement methods generally use a measuring rod for manual measurement, and only one by one can be measured during measurement. Not only does it require 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 purpose, the present invention provides the following technical solution: A large forging length measurement device, including a conveying component, including a conveyor belt, side plates arranged on both sides of the conveyor belt, and two brackets arranged at the bottom of the side plates;

[0005] A measurement component, at least one group is arranged on the side plates. The measurement component includes a guide rod inserted through the two side plates and length measurement parts symmetrically arranged at both ends of the guide rod;

[0006] The length measurement part includes a first rack and a contact plate slidably arranged in the middle of the guide rod, a second rack inserted through the guide rod, a gear set arranged on the guide rod, and a cable tension sensor;

[0007] The first rack is located inside the guide rod, the contact plate is located outside 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 corrugated plate is arranged at the top of the second rack, and the cable tension sensor is located outside the contact plate and is connected to it.

[0008] As a preferred embodiment of the present invention, wherein: a slider is provided at the bottom end of the contact plate, a chute is provided in the middle of the guide rod, strip-shaped protrusions are provided on both side walls of the chute, and grooves matching the strip-shaped protrusions of the chute are provided on both side surfaces of the first rack and the slider. The first rack and the slider of the contact plate are both clamped in the chute of the guide rod, so as to form that the first rack and the contact plate are slidably arranged on the guide rod.

[0009] As a preferred embodiment of the present invention, wherein: the spring is located in the chute 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.

[0010] As a preferred embodiment of the present invention, wherein: the rope-pulling sensor is installed on the guide rod, and the rope of the rope-pulling sensor is connected to the slider at the bottom end of the contact plate.

[0011] As a preferred embodiment of the present invention, wherein: slots are provided on the guide rod, convex blocks are provided on both side walls of the slots, limiting grooves matching the convex blocks in the slots are provided on both side surfaces of the second rack, the second rack is inserted into the slots of the guide rod, and the convex blocks of the slots are placed in the limiting grooves of the second rack.

[0012] As a preferred embodiment of the present invention, wherein: 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 on the guide rod.

[0013] As a preferred embodiment of the present invention, wherein: the gear set includes a round shaft, a large gear and a small gear inserted on the round shaft, the large gear is connected to the small gear, U-shaped plates are connected to both ends of the round shaft, the gear set is installed on the guide rod through the U-shaped plates, the large gear of the gear set meshes with the first rack, and the small gear meshes with the second rack.

[0014] As a preferred embodiment of the present invention, wherein: the middle of the corrugated plate bulges and both sides are concave, and the top end of the second rack is connected to the middle of the corrugated plate.

[0015] As a preferred embodiment of the present invention, wherein: the rotating shafts at both ends of the conveyor belt are rotatably installed on the side plates, a driving device is further provided on one side of the side plates, the output end of the driving device is connected to one rotating shaft of the conveyor belt, and two brackets are symmetrically arranged at both ends of the side plates.

[0016] A method for using a large forging length measuring device includes the following steps:

[0017] S1. Place large forgings with different lengths on the conveyor belt for transportation. When the forging moves to the corrugated plate, the forging slides along the top of the corrugated plate. By pushing the corrugated plate with the forging, the second rack moves downward and compresses the spring telescopic rod.

[0018] S2. When the second rack moves downward, the second rack drives the pinion and the large gear to rotate synchronously. The large gear drives the first rack to slide inward along the guide rod until the end of the first rack connected to the spring moves to the gear set.

[0019] S3. When the first rack slides inward along the guide rod, the first rack drives the slider and the contact plate to slide inward along 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 will pull the rope of the rope tension sensor and measure the moving distance of the contact plate.

[0020] S4. Measure the moving distance of one contact plate on the guide rod as L1 and the moving distance of the other contact plate as L2 through the rope tension sensor. The distance between the two contact plates on the guide rod at the initial position is L3, and the length of the forging is L4. That is, the forging length L4 = L3 - L1 - L2.

[0021] S5. When the forging leaves the corrugated plate, the spring telescopic rod extends and pushes the second rack to move upward to the initial position. The second rack drives the pinion and the large gear to rotate synchronously. The large gear drives the first rack to slide outward along the guide rod, pushing the contact plate and the slider back to the initial position for the next forging measurement.

[0022] The length measuring device of the present invention can measure the length of the forging during the transportation process of the forging, without manual measurement one by one, improving the measurement efficiency. When the forging slides over the corrugated plate, the contact plates on both sides of the guide rod move and abut against both ends of the forging, and there is a margin for forgings with different lengths to ensure that the sizes of forgings with different lengths can be effectively measured. Specifically, for forgings with longer lengths, after the contact plate contacts the forging, the first rack will continue to move towards the side plate, so that the contact plate can tightly abut against the end of the forging. For forgings with shorter lengths, since the contact plate can move to the U-shaped plate, it can still ensure that it contacts the end of the forging. Then, measure the displacement amounts L1 and L2 of the contact plate through the rope tension sensor, and calculate the accurate forging length L4 to avoid errors caused by human factors affecting the measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 is for the present invention Figure 1 is an enlarged schematic diagram of part A in the present invention;

[0025] Figure 3 For the present invention Figure 1 Schematic enlarged structure diagram at position B in the present invention;

[0026] Figure 4 Schematic structure diagram of the measuring component and side plate of the present invention;

[0027] Figure 5 Schematic cross-sectional structure diagram of the guide rod of the present invention;

[0028] Figure 6 Schematic structure diagram of the second rack, slot and spring telescopic rod of the present invention;

[0029] Figure 7 Schematic structure diagram of the gear set of the present invention.

[0030] In the figure: 1, conveying component; 11, conveyor belt; 12, side plate; 13, bracket; 14, driving device; 2, measuring component; 21, guide rod; 211, chute; 212, slot; 213, convex block; 22, length measuring piece; 221, first rack; 222, contact plate; 2221, slider; 223, second rack; 2231, limit groove; 224, gear set; 2241, round shaft; 2242, large gear; 2243, small gear; 2244, U-shaped plate; 225, pull rope sensor; 226, spring; 227, corrugated plate; 228, spring telescopic rod. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] Please refer to Figures 1-7 , a large forging length measuring device, including a conveying component 1, including a conveyor belt 11, side plates 12 arranged on both sides of the conveyor belt 11, and two brackets 13 arranged at the bottom of the side plates 12;

[0033] A measuring component 2, which is arranged on the side plate 12 and the number is at least one group. Specifically, when implemented, the measuring component 2 is arranged in two groups, which can perform secondary measurement on the forging to ensure accuracy. The measuring component 2 includes a guide rod 21 inserted through the two side plates 12 and length measuring pieces 22 symmetrically arranged at both ends of the guide rod 21;

[0034] It should be noted that square holes matching with the guide rods 21 are provided on both side plates 12. The guide rods 21 are inserted into the square holes of the side plates 12, and square notches are provided at the bottoms of the square holes of the side plates 12. When the first rack 221 slides along the guide rod 21 towards its inner side, the first rack 221 and the teeth at its bottom can pass through the side plate 12. The guide rod 21 is fixedly connected to the side plate 12 through a right-angle bent plate and bolts.

[0035] The length measuring member 22 includes a first rack 221 slidably arranged in the middle of the guide rod 21, a contact plate 222, a second rack 223 inserted through the guide rod 21, a gear set 224 arranged on the guide rod 21, and a cable tension sensor 225.

[0036] The first rack 221 is located inside the guide rod 21, the contact plate 222 is located outside the guide rod 21, and 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 the gear set 224. A corrugated plate 227 is provided at the top of the second rack 223. The cable tension sensor 225 is located outside the contact plate 222 and is connected to it. The cable tension sensor 225 is used to measure the displacement of the contact plate 222.

[0037] In this embodiment, a slider 2221 is provided at the bottom end of the contact plate 222, a chute 211 is provided in the middle of the guide rod 21, strip-shaped protrusions are provided on both side walls of the chute 211, and grooves matching with the strip-shaped protrusions of the chute 211 are provided on both side surfaces of the first rack 221 and the slider 2221. The first rack 221 and the slider 2221 of the contact plate 222 are both clamped in the chute 211 of the guide rod 21 to form the sliding arrangement of the first rack 221 and the contact plate 222 on the guide rod 21.

[0038] The spring 226 is located in the chute 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.

[0039] The cable tension sensor 225 is installed on the guide rod 21, and the cable of the cable tension sensor 225 is connected to the slider 2221 at the bottom end of the contact plate 222.

[0040] It should be noted that when the contact plate 222 moves towards the inner side along the guide rod 21, the contact plate 222 will pull the cable of the cable tension sensor 225, thereby measuring the displacement of the contact plate 222, and calculating the length of the forging through the displacement of the contact plate 222.

[0041] In this embodiment, a slot 212 is provided on the guide rod 21. On both side walls of the slot 212, there are convex blocks 213. On both side surfaces of the second rack 223, there are limiting grooves 2231 that cooperate with the convex blocks 213 in the slot 212. The second rack 223 is inserted into the slot 212 of the guide rod 21, and the convex blocks 213 in the slot 212 are placed in the limiting grooves 2231 of the second rack 223. The moving distance of the second rack 223 is restricted by the convex blocks 213 in the slot 212 and the limiting grooves 2231 of the second rack 223, and the second rack 223 can also be prevented from disengaging from the slot 212 of the guide rod 21;

[0042] On one side of the second rack 223, there is also a spring telescopic rod 228. 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 on the guide rod 21;

[0043] It should be noted that a connecting plate is provided at the upper end of the side of the second rack 223 relative to the teeth. The top end of the spring telescopic rod 228 is provided with a thread. The top end of the spring telescopic rod 228 penetrates through the connecting plate and is fixed by a nut, so that the spring telescopic rod 228 is connected to the second rack 223.

[0044] In this embodiment, the gear set 224 includes a round shaft 2241, a large gear 2242 and a small gear 2243 inserted on the round shaft 2241. The large gear 2242 is connected to the small gear 2243. Both ends of the round shaft 2241 are connected with U-shaped plates 2244. The gear set 224 is installed on the guide rod 21 through the U-shaped plates 2244. The large gear 2242 of the gear set 224 meshes with the first rack 221, and the small gear 2243 meshes with the second rack 223;

[0045] It should be noted that both ends of the round shaft 2241 are provided with threads. Both ends of the round shaft 2241 penetrate through the U-shaped plates 2244 and are fixed by threads. The U-shaped plates 2244 are clamped on the guide rod 21 and fixed by bolts. When the second rack 223 moves down to the lowest position, the small gear 2243 rotates coaxially with the large gear 2242 for two circles, and one end of the first rack 221 connected to the spring 226 moves to the position of the gear set 224, and the contact plate 222 can move to the position of the U-shaped plate 2244.

[0046] In this embodiment, the middle of the corrugated plate 227 bulges, and both sides are concave. The top end of the second rack 223 is connected to the middle of the corrugated plate 227. When the forging slides along the corrugated plate 227 to its middle part, the top end of the corrugated plate 227 is flush with the bottom of the forging. The corrugated 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 corrugated 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.

[0047] Specifically, generally, the length difference of the produced forgings is small and within a certain length range. The conveyor belt 11 can be set with a 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 forging. When the forging is placed on the conveyor belt 11, both ends of it can extend out of the outside of the corrugated plate 227. The maximum distance 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 can be measured.

[0048] In this embodiment, the rotating shafts at both ends of the conveyor belt 11 are rotatably installed on the side plates 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 one rotating shaft of the conveyor belt 11. The driving device 14 is a stepping motor, and the output shaft of the stepping 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.

[0049] The usage method of the large forging length measuring device of the present invention includes the following steps:

[0050] S1. Place large forgings with different lengths on the conveyor belt 11 for transportation. When the forging moves to the corrugated plate 227, the forging slides along the top of the corrugated plate 227, and the forging presses the corrugated plate 227 to move the second rack 223 downward and compress the spring telescopic rod 228.

[0051] S2. When the second rack 223 moves downward, the second rack 223 drives the pinion 2243 and the large gear 2242 to rotate synchronously. The large gear 2242 drives the first rack 221 to slide inward along the guide rod 21 until one end of the first rack 221 connected to the spring 226 moves to the gear set 224.

[0052] S3. When the first rack 221 slides inwardly towards the guide rod 21, the first rack 221 drives the slider 2221 and the contact plate 222 to slide inwardly towards 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 will pull the cord of the cord sensor 225 and measure the moving distance of the contact plate 222.

[0053] S4. The moving distance of one contact plate 222 on the guide rod 21 measured by the cord sensor 225 is L1, and the moving distance of the other contact plate 222 is L2. The distance between the two contact plates 222 on the guide rod 21 at the initial position is L3, and the length of the forging is L4. That is, the forging length L4 = L3 - L1 - L2.

[0054] S5. When the forging leaves the corrugated plate 227, the spring telescopic rod 228 extends and pushes the second rack 223 to move upward to return to the initial position. The second rack 223 drives the pinion 2243 and the large gear 2242 to rotate synchronously. The large gear 2242 drives the first rack 221 to slide outwardly towards the guide rod 21, and pushes the contact plate 222 and the slider 2221 back to the initial position for the next forging measurement.

[0055] In summary, the large forging length measuring device measures the displacement amounts L1 and L2 of the contact plate through the cord sensor, thereby calculating the accurate forging length L4. There is no need for manual measurement one by one with a measuring rod, which not only improves the measurement efficiency but also ensures the measurement accuracy of the forging.

[0056] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed claims.

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; The gear set (224) comprises a round shaft (2241), a large gear (2242) and a small gear (2243) interlaced on the round shaft (2241); the large gear (2242) is connected to the small gear (2243); two ends of the round 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); 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).

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 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 6, 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).

8. The method for using the large forging length measuring device according to claim 7, 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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