Tight knot correcting mechanism

Abstract

The invention discloses a tight knot correcting mechanism, and belongs to the technical field of chain correcting, the tight knot correcting mechanism comprises a workbench, the workbench is provided with a plurality of correcting assemblies used for correcting chain tight knots, each correcting assembly comprises a pressing wheel arranged on the workbench and correcting chain wheels arranged on the two sides of the pressing wheel, a chain sequentially bypasses the correcting chain wheels and the pressing wheel, and the pressing wheel and the correcting chain wheels are arranged on the workbench. And a driving mechanism for driving the straightening chain wheel and the pressing wheel to rotate simultaneously is arranged on the workbench. The chain knot adjusting device has the effect that a worker can conveniently adjust the chain knot.

Description

Technical Field

[0001] The present invention relates to the technical field of chain alignment, and more particularly to a tight knot alignment mechanism. Background Art

[0002] A chain is generally a metal link or loop, mostly used for transmission and traction before machinery. It is mainly divided into drive chains, conveyor chains, hauling chains, and special chains. Drive chains are mainly used for transmitting power, conveyor chains are mainly used for conveying materials, hauling chains are mainly used for pulling and lifting, and special chains refer to chains used on special mechanical devices with special functions and structures.

[0003] Dead knots will occur during the collection and sorting of chains. Most traditional methods for dealing with chain dead knots rely on manual operations. For some small chain dead knots, experienced workers can use simple tools such as pliers and wrenches to manually adjust and comb the chains to make them return to normal. The advantage of this method is that the operation is flexible and does not require complex equipment investment. In some cases where the accuracy requirement is not high and the number of chains is small, the problem can be quickly solved. When a larger chain has a dead knot, manual handling becomes extremely difficult. Because large chains are structurally strong, bulky, and the dead knot areas are often under complex forces, it is not convenient for workers to adjust the chain dead knots. Summary of the Invention

[0004] In order to improve the problem that it is not convenient for workers to adjust the chain dead knots due to the strong structure, large volume, and complex forces at the dead knot areas of large chains, the present application provides a tight knot alignment mechanism.

[0005] The tight knot alignment mechanism provided by the present application adopts the following technical solution: A tight knot alignment mechanism includes a workbench, and a plurality of alignment components for aligning chain dead knots are arranged on the workbench. Each alignment component includes a pressure wheel arranged on the workbench and alignment sprockets arranged on both sides of the pressure wheel. The chain bypasses the alignment sprockets and the pressure wheel in sequence, and a driving mechanism for driving the alignment sprockets and the pressure wheel to rotate simultaneously is arranged on the workbench.

[0006] By adopting the above technical solution, the chain to be aligned is passed through a plurality of alignment components in sequence, and then the alignment sprockets and the pressure wheel are driven to rotate by the driving component, so that the pressure wheel presses the chain against the alignment sprockets during rotation. The plurality of alignment components drive the chain to move, generating a pulling force during the movement of the chain, thereby facilitating the alignment of the dead knots on the chain.

[0007] Preferably, a mounting bracket is fixed to the bottom surface of the workbench. The driving mechanism includes a motor fixed to the bottom surface of the mounting bracket. A first rotating shaft is fixed to the bottom surface of the alignment sprocket, and a second rotating shaft is fixed to the bottom surface of the pressing wheel. The bottom ends of the first rotating shaft and the second rotating shaft both pass through the bottom surface of the workbench, and the first rotating shaft and the second rotating shaft are rotatably connected to the workbench. A first gear is provided at the bottom end of the first rotating shaft, and a second gear is provided at the bottom end of the second rotating shaft. The second gear meshes with the two first gears respectively, and the top end of the output shaft of the motor is fixedly connected to the bottom end of the second rotating shaft located at the end of the workbench.

[0008] By adopting the above technical solution, when the motor is started, the output shaft of the motor drives the second rotating shaft to rotate, the second rotating shaft drives the second gear to rotate, the second gear drives the first gear to rotate, so that the first gear drives the first rotating shaft to rotate, and the first rotating shaft drives the alignment sprocket to rotate, thereby driving the chain to move forward, generating a pulling force on the chain, and further opening the knot on the chain.

[0009] Preferably, a deviation correction wheel and a conveying sprocket are provided at one end of the top surface of the workbench. The chain passes between the deviation correction wheel and the conveying sprocket. A third rotating shaft is fixedly installed through the deviation correction wheel and the conveying sprocket. The bottom end of the third rotating shaft passes through the bottom surface of the workbench, and the third rotating shaft is rotatably connected to the workbench. A third gear is fixed to the bottom ends of the two third rotating shafts, and the two third gears mesh with each other.

[0010] By adopting the above technical solution, a conveying sprocket and a deviation correction wheel are provided at one end of the workbench. When the chain moves, the chain drives the conveying sprocket to rotate, the conveying sprocket drives the third rotating shaft to rotate, the third rotating shaft drives the third gear to rotate, the third gear drives the other third gear to rotate, so that the other third gear drives the other third rotating shaft to rotate, and the other third rotating shaft drives the deviation correction wheel to rotate, so that the deviation correction wheel presses the chain onto the conveying sprocket, thereby reducing the possibility of the chain loosening during the conveying process.

[0011] Preferably, a guide wheel is provided between two adjacent alignment assemblies, and the guide wheel is located outside the two groups of alignment assemblies.

[0012] By adopting the above technical solution, a guide wheel is provided between two adjacent alignment assemblies, thereby increasing the angle of the chain wound between the two adjacent alignment assemblies, and further facilitating the transition of the chain from one alignment assembly to another.

[0013] Preferably, a plurality of pairs of guiding grooves are formed in the top surface of the workbench. The plurality of pairs of guiding grooves correspond to the plurality of alignment assemblies. Each pair of guiding grooves is respectively located on both sides of the pressing wheel. A kidney-shaped groove is formed in the inner bottom surface of the guiding groove. The first rotating shaft passes through the kidney-shaped groove. A plurality of mounting plates are fixed to the bottom surface of the workbench. The plurality of mounting plates respectively correspond to the plurality of alignment assemblies. The kidney-shaped groove penetrates through the mounting plate. The first rotating shaft passes through the mounting plate through the kidney-shaped groove. The second rotating shaft passes through the mounting plate. The second rotating shaft is rotatably connected to the mounting plate. A tensioning member for tensioning the alignment sprocket is provided on the mounting plate.

[0014] By adopting the above technical solution, a kidney-shaped groove is formed in the top surface of the workbench, and the first rotating shaft passes through the kidney-shaped groove. When the alignment sprocket rotates to convey the chain, since there is a tight knot on the chain, the chain will be in a tensioned state. At this time, the chain will give a thrust to the alignment sprocket, causing the alignment sprocket to drive the first rotating shaft to move along the kidney-shaped groove, so that the tension on the chain is relieved, thereby reducing the possibility of damage during the chain alignment process.

[0015] Preferably, the tensioning member includes a fixed block fixed to the bottom surface of the mounting plate. A fixed rod is fixed to the side surface of the fixed block. A stop block is fixed to the end surface of the fixed rod away from the fixed block. A moving block is slidably arranged on the fixed rod. Connecting rods are rotatably installed at both ends of the moving block. A circular ring is fixed to the end of the connecting rod away from the moving block. The circular ring is sleeved on the outer peripheral surface of the first rotating shaft. The circular ring is rotatably connected to the first rotating shaft. A spring is sleeved on the fixed rod. One end of the spring abuts against the side surface of the moving block away from the fixed block, and the other end of the spring abuts against the side surface of the stop block close to the moving block.

[0016] By adopting the above technical solution, a kidney-shaped groove is formed in the top surface of the workbench, and the first rotating shaft passes through the kidney-shaped groove. When the alignment sprocket rotates to convey the chain, since there is a tight knot on the chain, the chain will be in a tensioned state. At this time, the chain will give a thrust to the alignment sprocket, causing the alignment sprocket to drive the first rotating shaft to move along the kidney-shaped groove. The first rotating shaft also drives the connecting rod to move, and the connecting rod drives the moving block to move, so that the spring is in a tensioned state. When the tight knot on the chain is aligned, the chain is in a relaxed state. The moving block moves towards the direction close to the fixed block under the elastic force of the spring, causing the moving block to drive the connecting rod to move, the connecting rod drives the first rotating shaft to move, and the first rotating shaft drives the alignment sprocket to move, so as to tension the chain by the alignment sprocket, facilitating the alignment sprocket to rotate and drive the chain to move.

[0017] Preferably, a triangular block is arranged at one end of the top surface of the workbench away from the conveying sprocket. Rounded corners are formed at the tips of the triangular block. One of the tips of the triangular block points to the outside of the workbench.

[0018] By adopting the above technical solution, after the chain is aligned, the chain bypasses the triangular block during the conveying process, and one of the tips of the triangular block restricts the chain at the edge of the workbench, thereby facilitating the visual inspection of the aligned chain by the staff.

[0019] Preferably, a steering wheel is rotatably provided at one end of the top surface of the workbench away from the conveying sprocket. The steering wheel is located on the side of the triangular block close to the conveying sprocket, and the output end of the chain bypasses the triangular block and the steering wheel in sequence.

[0020] By adopting the above technical solution, after the chain is visually inspected by the staff after bypassing the triangular block, the chain is guided by the steering wheel to be conveyed in a specified direction, thereby facilitating the chain to enter the next process for processing.

[0021] Preferably, multiple groups of the alignment components are distributed in an arc on the top surface of the workbench.

[0022] By adopting the above technical solution, multiple groups of the alignment components are distributed in an arc on the workbench, so that when the multiple groups of alignment components convey the chain, adjacent two chain plates can rotate, and thus it is convenient to align the dead knots on the chain.

[0023] In summary, the present application includes at least one of the following beneficial technical effects: 1. The chain to be aligned is sequentially passed through multiple alignment components, and then the motor is started. The output shaft of the motor drives the second rotating shaft to rotate, the second rotating shaft drives the second gear to rotate, the second gear drives the first gear to rotate, so that the first gear drives the first rotating shaft to rotate, and the first rotating shaft drives the alignment sprocket to rotate, thereby driving the chain to move forward by the alignment sprocket, generating a pulling force on the chain, and thus opening the dead knots on the chain; 2. A conveying sprocket and a deviation rectifying wheel are provided at one end of the workbench. When the chain moves, the chain drives the conveying sprocket to rotate, the conveying sprocket drives the third rotating shaft to rotate, the third rotating shaft drives the third gear to rotate, the third gear drives another third gear to rotate, so that the other third gear drives another third rotating shaft to rotate, and the other third rotating shaft drives the deviation rectifying wheel to rotate, and the deviation rectifying wheel presses the chain on the conveying sprocket, thereby reducing the possibility of the chain loosening during the conveying process; 3. Open a waist-shaped groove on the top surface of the workbench so that the first rotating shaft passes through the waist-shaped groove. When calibrating the sprocket to rotate the conveying chain, since there is a tight knot on the chain, the chain will be in a tensioned state. At this time, the chain will give a thrust to the calibration sprocket, causing the calibration sprocket to drive the first rotating shaft to move along the waist-shaped groove. The first rotating shaft also drives the connecting rod to move, and the connecting rod drives the moving block to move, making the spring in a tensioned state. When the tight knot on the chain is calibrated, the chain is in a relaxed state. The moving block moves towards the direction close to the fixed block under the elastic force of the spring, causing the moving block to drive the connecting rod to move, the connecting rod to drive the first rotating shaft to move, and the first rotating shaft to drive the calibration sprocket to move, so as to tension the chain by the calibration sprocket, facilitating the calibration sprocket to rotate and drive the chain to move. Brief Description of the Drawings

[0024] Figure 1 is a schematic diagram of the overall structure of the tight knot calibration mechanism in the embodiment of the present application.

[0025] Figure 2 is a schematic diagram of the structure of the mounting bracket in the embodiment of the present application.

[0026] Figure 3 is a schematic diagram of the structure of the calibration assembly in the embodiment of the present application.

[0027] Reference numerals: 1, workbench; 11, deviation rectifying wheel; 12, conveying sprocket; 13, third rotating shaft; 14, third gear; 15, triangular block; 16, steering wheel; 2, calibration assembly; 21, pressing wheel; 22, calibration sprocket; 23, guide wheel; 24, first rotating shaft; 25, second rotating shaft; 26, first gear; 27, second gear; 28, mounting bracket; 29, motor; 3, guide groove; 31, waist-shaped groove; 32, mounting plate; 33, fixed block; 34, fixed rod; 35, moving block; 36, connecting rod; 37, circular ring; 38, spring; 39, stop block. Detailed Description of the Embodiment

[0028] The following will further describe the present application in detail Figures 1-3 with reference to the attached drawings.

[0029] The embodiment of the present application discloses a tight knot calibration mechanism.

[0030] Refer to Figure 1 and 2, A tight dead knot calibration mechanism includes a workbench 1. On the top surface of the workbench 1, multiple calibration components 2 for calibrating the dead knots of the chain are provided, and the multiple calibration components 2 are distributed in an arc on the top surface of the workbench 1. At one end of the top surface of the workbench 1, a deviation correction wheel 11 and a conveying sprocket 12 are provided. The chain passes between the deviation correction wheel 11 and the conveying sprocket 12 and then successively bypasses multiple calibration components 2. The conveying sprocket 12 meshes with the chain, and the outer peripheral surface of the deviation correction wheel 11 abuts against the chain. On the top surfaces of the deviation correction wheel 11 and the conveying sprocket 12, a third rotating shaft 13 is fixedly inserted. The bottom end of the third rotating shaft 13 passes through the bottom surface of the workbench 1, and the two third rotating shafts 13 are respectively rotatably connected to the workbench 1. At the bottom ends of the two third rotating shafts 13, third gears 14 are fixedly provided, and the two third gears 14 mesh with each other.

[0031] Referring to Figure 1 and Figure 2 , at one end of the top surface of the workbench 1 away from the deviation correction wheel 11, a triangular block 15 and a steering wheel 16 are provided. The steering wheel 16 is rotatably installed on the top surface of the workbench 1. The steering wheel 16 is located on the side of the triangular block 15 close to the deviation correction wheel 11. The output end of the chain successively bypasses the triangular block 15 and the steering wheel 16. The triangular block 15 is fixed to the top surface of the workbench 1. Rounded corners are provided at the three tips of the triangular block 15, and one of the tips of the triangular block 15 points to the outside of the workbench 1.

[0032] Referring to Figure 1 , the calibration component 2 includes a pressing wheel 21 provided on the workbench 1 and calibration sprockets 22 provided on both sides of the pressing wheel 21. A guiding wheel 23 is provided between two adjacent calibration components 2. The guiding wheel 23 is rotatably installed on the top surface of the workbench 1. The guiding wheel 23 is located outside between the two calibration components 2. The chain successively bypasses the calibration sprocket 22, the pressing wheel 21, the calibration sprocket 22 and the guiding wheel 23.

[0033] Referring to Figure 1 , Figure 2 and Figure 3 , on the top surface of the calibration sprocket 22, a first rotating shaft 24 is fixedly inserted. On the top surface of the pressing wheel 21, a second rotating shaft 25 is fixedly inserted. The bottom end of the second rotating shaft 25 passes through the bottom surface of the workbench 1, and the second rotating shaft 25 is rotatably connected to the workbench 1. On the top surface of the workbench 1, multiple pairs of guiding grooves 3 are provided, and the multiple pairs of guiding grooves 3 correspond to the multiple calibration components 2. Each pair of guiding grooves 3 is respectively located on both sides of the pressing wheel 21. A waist-shaped groove 31 is provided on the inner bottom surface of the guiding groove 3, and the waist-shaped groove 31 penetrates through the bottom surface of the workbench 1. The bottom end of the first rotating shaft 24 passes through the waist-shaped groove 31. At the bottom end of the first rotating shaft 24, a first gear 26 is fixedly sleeved. At the bottom end of the second rotating shaft 25, a second gear 27 is fixedly sleeved, and the second gear 27 meshes with the two first gears 26 respectively.

[0034] Referring to Figure 1 , Figure 2 and Figure 3, a plurality of mounting plates 32 are fixed to the bottom surface of the workbench 1. The plurality of mounting plates 32 respectively correspond to the plurality of alignment components 2. The waist-shaped groove 31 penetrates through the mounting plate 32. The first rotating shaft 24 passes through the mounting plate 32 through the waist-shaped groove 31. The bottom end of the second rotating shaft 25 passes through the mounting plate 32, and the second rotating shaft 25 is rotatably connected to the mounting plate 32.

[0035] Refer to Figure 2 and Figure 3 , a fixing block 33 is fixed to the bottom surface of the mounting plate 32. A fixing rod 34 is fixed to the side surface of the fixing block 33. A stop block 39 is fixed to the end of the fixing rod 34 away from the fixing block 33. A moving block 35 is sleeved on the outer peripheral surface of the fixing rod 34. The moving block 35 is slidably connected to the fixing rod 34 along the axial direction of the fixing rod 34. Link rods 36 are rotatably installed at both ends of the moving block 35. A circular ring 37 is fixed to the end of the link rod 36 away from the moving block 35. The circular ring 37 is sleeved on the outer peripheral surface of the first rotating shaft 24, and the circular ring 37 is rotatably connected to the first rotating shaft 24. A spring 38 is sleeved on the fixing rod 34. One end of the spring 38 abuts against the side surface of the moving block 35 away from the fixing block 33, and the other end of the spring 38 abuts against the side surface of the stop block 39 close to the moving block 35.

[0036] Refer to Figure 2 and Figure 3 , a mounting frame 28 is fixed to the bottom surface of the workbench 1. A motor 29 is fixed to the bottom surface of the mounting frame 28. The top end of the output shaft of the motor 29 is fixedly connected to the bottom end of the second rotating shaft 25 located at the end of the workbench 1.

[0037] The implementation principle of an over-tight knot alignment mechanism in an embodiment of the present application is as follows: By starting the motor 29, the output shaft of the motor 29 drives the second rotating shaft 25 to rotate. The second rotating shaft 25 drives the second gear 27 to rotate. The second gear 27 drives the two first gears 26 to rotate. The first gear 26 drives the first rotating shaft 24 to rotate, so that the first rotating shaft 24 drives the alignment sprocket 22 to rotate, causing the sprocket to drive the chain to move forward. At the same time, during the movement of the chain, the alignment sprockets 22 in the plurality of alignment components 2 are also driven to rotate. The alignment sprocket 22 drives the first rotating shaft 24 to rotate. The first rotating shaft 24 drives the first gear 26 to rotate. The first gear 26 drives the second gear 27 to rotate, so that the second gear 27 drives the second rotating shaft 25 to rotate. The second rotating shaft 25 drives the pressing wheel 21 to rotate, so that the pressing wheel 21 presses the chain against the alignment sprocket 22 during rotation. During the conveying process of the chain, a pulling force is applied to the chain through the plurality of alignment components 2, thereby facilitating the alignment of the over-tight knots on the chain.

[0038] When aligning a large chain, when the large chain is pulled, the chain will be tightened. At this time, the chain will generate a thrust on the alignment sprocket 22, causing the alignment sprocket 22 to drive the first rotating shaft to move along the kidney-shaped groove 31, thereby reducing the possibility of the chain breaking due to the large pulling force when the alignment assembly 2 aligns the chain. When the first rotating shaft 24 moves, the first rotating shaft 24 also drives the connecting rod 36 to move. The connecting rod 36 drives the moving block 35 to move away from the fixed block 33, so that the spring 38 is in a compressed state. When the knot on the chain is aligned, the chain is in a relaxed state. The moving block 35 moves towards the fixed block 33 under the elastic force of the spring 38, causing the moving block 35 to drive the connecting rod 36 to move. The connecting rod 36 drives the first rotating shaft 24 to move, and the first rotating shaft 24 drives the alignment sprocket 22 to move, so that the alignment sprocket 22 tensions the relaxed chain, and then it is convenient for the alignment sprocket 22 to convey the aligned chain forward when rotating.

[0039] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A tightening and calibrating mechanism, comprising a workbench (1), characterized in that: The workbench (1) is provided with a plurality of calibrating components (2) for calibrating chain knots, each of the calibrating components (2) comprising a pressure wheel (21) arranged on the workbench (1) and calibrating sprockets (22) arranged on both sides of the pressure wheel (21), the chain passes around the calibrating sprockets (22) and the pressure wheel (21) in sequence, and the workbench (1) is provided with a driving mechanism for driving the calibrating sprockets (22) and the pressure wheel (21) to rotate simultaneously.

2. A tight knot adjustment mechanism according to claim 1, characterized in that: A mounting frame (28) is fixed to the bottom surface of the workbench (1); the driving mechanism comprises a motor (29) fixed to the bottom surface of the mounting frame (28); a rotating shaft (24) is fixed to the bottom surface of the adjustment sprocket (22); a rotating shaft (25) is fixed to the bottom surface of the pressure wheel (21); the bottom ends of the rotating shaft (24) and the rotating shaft (25) both pass through the bottom surface of the workbench (1); the rotating shaft (24) and the rotating shaft (25) are rotatably connected to the workbench (1); a gear (26) is provided at the bottom end of the rotating shaft (24); a gear (27) is provided at the bottom end of the rotating shaft (25); the gear (27) is respectively meshed with the two gears (26); the top end of the output shaft of the motor (29) is fixedly connected to the bottom end of the rotating shaft (25) located at the end of the workbench (1).

3. A tight knot adjustment mechanism according to claim 2, characterized in that: A deflection correction wheel (11) and a conveying sprocket (12) are arranged at one end of the top surface of the workbench (1), and a chain passes through between the deflection correction wheel (11) and the conveying sprocket (12). A rotating shaft three (13) is fixed on both the deflection correction wheel (11) and the conveying sprocket (12). The bottom end of the rotating shaft three (13) passes through the bottom surface of the workbench (1), and the rotating shaft three (13) is rotatably connected to the workbench (1). A gear three (14) is fixed at the bottom ends of the two rotating shafts three (13), and the two gears three (14) are meshed with each other.

4. A tight knot adjustment mechanism according to claim 3, characterized in that: A guide wheel (23) is provided between two adjacent adjustment components (2), and the guide wheel (23) is located outside between the two groups of adjustment components (2).

5. A tight knot adjustment mechanism according to claim 4, characterized in that: The top surface of the workbench (1) is provided with a plurality of pairs of guide grooves (3), and the plurality of pairs of guide grooves (3) correspond to the plurality of adjustment components (2). Each pair of guide grooves (3) is respectively located on both sides of the pressure wheel (21). The inner bottom surface of the guide groove (3) is provided with a waist-shaped groove (31), and the rotating shaft (24) passes through the waist-shaped groove (31). The bottom surface of the workbench (1) is fixed with a plurality of mounting plates (32), and the plurality of mounting plates (32) respectively correspond to the plurality of adjustment components (2). The waist-shaped groove (31) passes through the mounting plate (32), and the rotating shaft (24) passes through the mounting plate (32) through the waist-shaped groove (31). The rotating shaft (25) passes through the mounting plate (32), and the rotating shaft (25) is rotatably connected to the mounting plate (32). A tensioning member for tensioning the adjustment sprocket (22) is provided on the mounting plate (32).

6. A tight knot adjustment mechanism according to claim 5, characterized in that: The tensioning member comprises a fixed block (33) fixed to the bottom surface of the mounting plate (32), a fixed rod (34) is fixed to the side surface of the fixed block (33), a stopper (39) is fixed to the end surface of the fixed rod (34) away from the fixed block (33), a moving block (35) is slidably arranged on the fixed rod (34), connecting rods (36) are rotatably mounted at both ends of the moving block (35), and one end of the connecting rod (36) away from the moving block (35) is A circular ring (37) is fixed, the circular ring (37) is sleeved on the outer circumference of the rotating shaft (24), the circular ring (37) is rotatably connected to the rotating shaft (24), a spring (38) is sleeved on the fixed rod (34), one end of the spring (38) abuts against the side of the moving block (35) away from the fixed block (33), and the other end of the spring (38) abuts against the side of the stop block (39) close to the moving block (35).

7. A tight knot adjustment mechanism according to claim 6, characterized in that: A triangular block (15) is provided at one end of the top surface of the workbench (1) away from the conveying sprocket (12), the tips of the triangular blocks (15) are all rounded, and one of the tips of the triangular blocks (15) points to the outside of the workbench (1).

8. A tight knot adjustment mechanism according to claim 7, characterized in that: A steering wheel (16) is rotatably provided on one end of the top surface of the workbench (1) away from the conveying sprocket (12); the steering wheel (16) is located on a side of the triangular block (15) close to the conveying sprocket (12); and the output end of the chain passes around the triangular block (15) and the steering wheel (16) in sequence.

9. A tight knot adjustment mechanism according to claim 1, characterized in that: A plurality of groups of the calibration components (2) are distributed in an arc shape on the top surface of the workbench (1).

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