Thickness measuring equipment for machined part of 3D printer for building

Abstract

The invention provides a 3D printer workpiece thickness measuring device for building, and relates to the technical field of thickness measurement, a measuring device body comprises a measuring table, a driving mechanism, an energy dissipation assembly and a measuring mechanism, a support is welded to the rear end of the surface of the measuring table, a top plate is welded to the top of the support, and the measuring mechanism is installed below the top plate. The measuring mechanism comprises a low-position measuring mechanism and a high-position measuring mechanism, the top of the low-position measuring mechanism upwards penetrates out of the surface of the top plate, thickness data and difference value data of a thick position and a thin position can be obtained at the same time through the low-position measuring mechanism and the high-position measuring mechanism, the measuring efficiency is high, and the measuring precision is high. The device can measure the thickness of a tip or an elastic component, can reduce the damage to a tip area, improves the measurement accuracy, can limit the impact force generated when the measurement mechanism moves downwards in cooperation with the driving mechanism, and further weakens the damage problem generated when the thickness of the tip area is measured.

Description

Technical Field

[0001] The present invention relates to the technical field of thickness measurement, and in particular to a device for measuring the thickness of a workpiece processed by a 3D printer for construction. Background Art

[0002] The application of 3D printing technology in the architectural field can be divided into two aspects: the first is during the architectural design phase, primarily for the creation of architectural models; the second is during the construction phase, using 3D printing technology to construct full-scale buildings. Compared with traditional construction, 3D printed buildings use simpler materials and a simpler printing process. Using 3D printing can conserve building materials, effectively shorten construction timelines, and reduce construction costs.

[0003] In the prior art, after the construction workpieces printed by 3D printers are completed, their dimensions need to be measured, including the thickness of the workpiece. The existing measurement scheme directly uses a ruler for comparison, but this scheme is inefficient, especially for workpieces with uneven surfaces. It is difficult to accurately and efficiently obtain the thickness data of the thickest and thinnest areas. On the other hand, for workpieces with sharp objects on the surface, such as nail plates, direct clamping measurement is very likely to cause damage to the tip area due to excessive clamping force. Or when measuring the thickness of parts with elastic structures, the clamping pressure problem will also cause errors in the measurement results. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a thickness measurement device for 3D printer processed parts for construction to solve the problems raised in the above background technology. The present invention can simultaneously obtain thickness data and difference data of thicker positions and thinner positions through two measuring mechanisms at low and high positions. The measurement efficiency is high, and the damage to the tip area can be reduced when measuring the thickness of parts with tips or elastic components, and the measurement accuracy is improved. In conjunction with the driving mechanism, the impact force generated when the measuring mechanism moves downward can be limited, further weakening the damage problem caused by measuring the thickness of the tip area.

[0005] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical solutions: a device for measuring the thickness of a workpiece processed by a 3D printer for construction, comprising a measuring device body, the measuring device body comprising a measuring platform, a driving mechanism, an energy dissipation component and a measuring mechanism, a bracket is welded to the rear end of the surface of the measuring platform, a top plate is welded to the top of the bracket, the measuring mechanism is installed below the top plate, and the measuring mechanism comprises a low-position measuring mechanism and a high-position measuring mechanism, the top of the low-position measuring mechanism passes upward from the surface of the top plate, and the low-position measuring mechanism is used to press and fit the thinner area on the surface of the workpiece, and the high-position measuring mechanism is used to fit and contact the thicker area on the surface of the workpiece, a strip hole is opened on the surface of the measuring platform, a driving mechanism is embedded in the interior of the strip hole, an energy dissipation component is also screwed on the surface of the measuring platform, the energy dissipation component is installed at the end of the strip hole, the end of the driving mechanism is embedded in the interior of the energy dissipation component, and the top of the driving mechanism protrudes upward from the strip hole in the initial state.

[0006] Furthermore, the low-level measuring mechanism includes a measuring rod and an extension rod. The top surface of the measuring rod is engraved with a low-level scale line, the bottom surface of the measuring rod is engraved with a height difference scale line, the bottom end of the measuring rod is integrally formed with a support plate, and the bottom of the support plate is integrally formed with a measuring tip.

[0007] Furthermore, the measuring rod is pressed on the surface of the workpiece to be measured through the measuring tip at the bottom, the measuring rod passes through the middle position of the top plate, and the extension rod is welded on both sides of the measuring rod in a symmetrical form, and a limiting protrusion is welded at the end of each extension rod.

[0008] Furthermore, the high-position measuring mechanism includes a pressing plate, a clamping groove and a pressing piece. The clamping groove is integrally formed on the surface of the pressing plate, the pressing piece is embedded in the inside of the clamping groove, and a lifting sleeve is welded to one end of the pressing plate.

[0009] Furthermore, the high-position measuring mechanism is mounted on the surface of the measuring rod through a lifting sleeve, and the support plate is used to support the bottom of the lifting sleeve. A partition is welded on the top of the clamping groove, a positioning hole is opened in the middle of the partition, and a supporting screw is inserted on the surface of the partition, and a supporting plate is welded to the bottom end of each supporting screw.

[0010] Furthermore, a protrusion is integrally formed on the side of the pressing piece, and a stabilizing spring is welded on the surface of the pressing piece. The side of the pressing piece fits against the inner wall of the clamping groove, and the protrusion is embedded in the inner wall of the clamping groove. The supporting plate and the supporting screw are rotated downward and fit against the surface of the pressing piece. A positioning rod is welded in the middle of the pressing piece, and the surface of the positioning rod is engraved with a compensation scale line, and the positioning rod passes through the inside of the positioning hole.

[0011] Furthermore, the driving mechanism includes a motor and a driving guide roller, a driving shaft is inserted into the output end of the motor, the driving guide roller is welded to the surface of the driving shaft, an anti-slip ring is welded to the end of the driving shaft, and the top of the driving guide roller protrudes from the surface of the strip hole.

[0012] Furthermore, a support collar is sleeved on the surface of the drive shaft, a spring rod is welded to the bottom of the support collar, and there are two support collars and two spring rods, and each support collar is hidden inside the strip hole.

[0013] Furthermore, a winding ring is integrally formed on one side of the anti-slip ring, a traction rope is connected to the side of the winding ring, a guide pulley is welded to the bottom of the top plate, the traction rope is passed around the top of the guide pulley, and a docking ring is installed at the end of the traction rope, and the docking ring is used to be mounted on the surface of the extension rod.

[0014] Furthermore, the energy dissipation assembly includes an energy dissipation box and an energy dissipation plate. An elastic pad is mounted inside the energy dissipation box. The energy dissipation plate is mounted on the bottom of the elastic pad. The energy dissipation plate has an overall arc-shaped structure. The bottom of the energy dissipation plate is used to press on the surface of the anti-slip ring.

[0015] Beneficial effects of the present invention:

[0016] 1. This device for measuring the thickness of architectural 3D printer workpieces uses two measuring mechanisms, low and high, to rest against the thinner and thicker areas of the workpiece surface, respectively. Therefore, after the joining is completed, the thickness data and difference data of the thicker and thinner positions can be obtained simultaneously, making the overall measurement more efficient. It can also take into account the effectiveness of the joining points when measuring the thickness of curved or pointed areas, as well as the flexible joining effect when measuring at low positions.

[0017] 2. In the high-position measuring mechanism of the 3D printer-processed parts thickness measuring device for construction, the use of a pressing piece and the clamping grooves on both sides can avoid the entire measuring mechanism being pressed on the top point of the tip. Instead, the inclined surfaces on both sides of the tip also play a supporting role. Therefore, when measuring the thickness of parts with tips or elastic components, the damage to the tip area can be reduced, and the measurement accuracy can be improved.

[0018] 3. This device for measuring the thickness of architectural 3D printer workpieces simultaneously achieves the effects of conveying the workpiece and raising and lowering the measuring mechanism through a driving mechanism. In addition, when controlling the downward movement of the measuring mechanism, the driving mechanism can also limit the impact force generated when the measuring mechanism moves downward, further reducing the damage caused by measuring the thickness of the tip area. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1This is a schematic structural diagram of the appearance of a device for measuring the thickness of workpieces processed by a 3D printer for construction according to the present invention;

[0020] Figure 2 It is a structural schematic diagram of the measuring mechanism part of the present invention;

[0021] Figure 3 It is a structural schematic diagram of the high-level measuring mechanism of the present invention;

[0022] Figure 4 This is a disassembled diagram of the interior of the high-level measuring mechanism of the present invention;

[0023] Figure 5 for Figure 1 Enlarged view of area A in the middle;

[0024] Figure 6 It is a structural schematic diagram of the driving mechanism part of the present invention;

[0025] Figure 7 is an internal cross-sectional view of the energy dissipation component of the present invention;

[0026] In the figure: 1. Measuring table; 2. Driving mechanism; 3. Strip hole; 4. Energy dissipation assembly; 5. Bracket; 6. Top plate; 7. Low-position measuring mechanism; 8. High-position measuring mechanism; 9. Measuring rod; 10. Low-position scale line; 11. Height difference scale line; 12. Support plate; 13. Extension rod; 14. Lifting sleeve; 15. Pressing plate; 16. Clamping groove; 17. Partition plate; 18. Positioning hole; 19. Abutting screw; 20. Press Pressing piece; 21. Stabilizing spring; 22. Positioning rod; 23. Compensating scale line; 24. Bump; 25. Energy dissipation box; 26. Traction rope; 27. Drive guide roller; 28. Motor; 29. Drive shaft; 30. Support collar; 31. Spring rod; 32. Winding ring; 33. Anti-slip ring; 34. Guide pulley; 35. Docking collar; 36. Elastic pad; 37. Energy dissipation plate; 38. Support plate; 39. Measuring tip. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0028] See also Figures 1 to 7The present invention provides the following technical solutions: A device for measuring the thickness of workpieces processed by a 3D printer for construction, comprising a measuring device body, the measuring device body comprising a measuring platform 1, a driving mechanism 2, an energy dissipation component 4 and a measuring mechanism, a bracket 5 is welded to the rear end of the surface of the measuring platform 1, a top plate 6 is welded to the top of the bracket 5, the measuring mechanism is installed below the top plate 6, and the measuring mechanism comprises a low-position measuring mechanism 7 and a high-position measuring mechanism 8, the top of the low-position measuring mechanism 7 extends upward from the surface of the top plate 6, and the low-position measuring mechanism 7 is used to press and fit the thinner area on the surface of the workpiece, and the high-position measuring mechanism 8 is used to fit and contact the thicker area on the surface of the workpiece, a strip hole 3 is opened on the surface of the measuring platform 1, the driving mechanism 2 is embedded in the interior of the strip hole 3, and the surface of the measuring platform 1 is also screwed with an energy dissipation component 4, the energy dissipation component 4 is installed at the end of the strip hole 3, the end of the driving mechanism 2 is embedded in the interior of the energy dissipation component 4, and the top of the driving mechanism 2 protrudes upward from the strip hole 3 in the initial state. The device for measuring the thickness of building workpieces produced by a 3D printer can detect the thickness of building workpieces produced by a 3D printer, and can simultaneously measure the thickness of thinner and thicker areas of the workpiece.

[0029] When the present invention is used, after the processed workpiece is placed on the surface of the measuring table 1 by the previous conveying device, the workpiece is conveyed to the bottom of the measuring mechanism by the driving mechanism 2. At this time, the alignment position of the workpiece and the measuring mechanism can be calibrated manually until both the low-level measuring mechanism 7 and the high-level measuring mechanism 8 are pressed against the surface of the workpiece, and it is ensured that the low-level measuring mechanism 7 is pressed on the thinner area to be measured on the surface of the workpiece, or even inside the groove, while the high-level measuring mechanism is pressed on the raised high area or even the tip area. At this time, the low-temperature scale line can obtain the thickness data of the abutment point of the low-level measuring mechanism 7, and then the height difference scale line 11 can be read to obtain the height difference data between the points measured by the two measuring mechanisms. This data is added to the previously obtained low-level thickness data to obtain the thickness data of the point measured by the high-level measuring mechanism 8. When it is necessary to measure the tip area, the abutment screw 19 in the high-level measuring mechanism 8 can be manually controlled to loosen or remove, and aligned with the tip area with the help of the pressing piece 20, so as to reduce the pressure damage to the tip area during the measurement process.

[0030] In this embodiment, the low-level measuring mechanism 7 includes a measuring rod 9 and an extension rod 13. The top surface of the measuring rod 9 is engraved with low-level scale lines 10, and the bottom surface of the measuring rod 9 is engraved with height difference scale lines 11. A support plate 12 is integrally formed at the bottom end of the measuring rod 9, and a measuring tip 39 is integrally formed at the bottom of the support plate 12. The measuring rod 9 is pressed against the surface of the workpiece to be measured via the measuring tip 39 at its bottom. The measuring rod 9 passes through the middle of the top plate 6. The extension rods 13 are symmetrically welded to either side of the measuring rod 9, and each extension rod 13 is welded to a stopper at the end. By using the low-level and high-level measuring mechanisms, which respectively rest against the thinner and thicker areas of the workpiece surface, thickness data and difference data for both the thicker and thinner areas can be simultaneously obtained after the joint is completed. This improves overall measurement efficiency and balances the effectiveness of the joint point when measuring the thickness of curved or pointed areas with the flexible joint effect when measuring at the low level.

[0031] Specifically, when the workpiece moves over the top of the drive mechanism 2, it can be reeled in by the top traction rope 26, and the extension rod 13 at the end can be pulled upward by the guide pulley 34. At this time, the entire measuring mechanism can be pulled upward. When the workpiece to be measured is moved into place, the position of the workpiece can be manually controlled. After disengaging from the drive mechanism 2, the drive mechanism 2 is turned off. At this time, the measuring mechanism can move downward by its own gravity, and the energy dissipation component 4 is synchronously cooperated to ensure that the measuring mechanism moves slowly downward. During this downward movement, the alignment position between the workpiece and the measuring tip 39 can be continuously adjusted until the measuring tip 39 is pressed into the preset low-level measurement area. At the same time, the high-level measuring mechanism 8 on the top is also manually rotated to ensure that the high-level measuring mechanism 8 can be aligned with the preset high point on the surface of the workpiece and maintain the pressure. At this time, the measuring tip 39 is blocked by the workpiece and cannot contact the surface of the measuring platform 1, that is, the measuring rod 9 is lifted by the workpiece. Therefore, the measured low-level thickness data of the workpiece can be determined directly by reading the low-level scale line 10 on the top.

[0032] In this embodiment, the high-position measuring mechanism 8 includes a pressing plate 15, a clamping groove 16, and a pressing piece 20. The clamping groove 16 is integrally formed on the surface of the pressing plate 15, and the pressing piece 20 is embedded in the interior of the clamping groove 16. A lifting sleeve 14 is welded to one end of the pressing plate 15. The high-position measuring mechanism 8 is mounted on the surface of the measuring rod 9 via the lifting sleeve 14, and the support plate 12 is used to support the bottom of the lifting sleeve 14. A partition 17 is welded to the top of the clamping groove 16, and a positioning hole 18 is opened in the middle of the partition 17. Abutment screws 19 are inserted into the surface of the partition 17, and a supporting plate 38 is welded to the bottom end of each abutment screw 19. The side of the pressing piece 20 is integrally formed with a protrusion 24, and a stabilizing spring 21 is welded to the surface of the pressing piece 20. The side of the pressing piece 20 fits in with the inner wall of the clamping groove 16, and the protrusion 24 is embedded in the inner wall of the clamping groove 16. The support plate 38 and the support screw 19 rotate downward and fit in with the surface of the pressing piece 20. A positioning rod 22 is welded in the middle of the pressing piece 20, and the surface of the positioning rod 22 is engraved with a compensation scale line 23, and the positioning rod 22 passes through the inside of the positioning hole 18. In the high-position measuring mechanism 8, the use of the pressing piece 20 and the clamping grooves 16 on both sides can be used to avoid the entire measuring mechanism from being pressed on the top point of the tip. Instead, the inclined surfaces on both sides of the tip also play a supporting role. Therefore, when measuring the thickness of a tip or elastic component, the damage to the tip area can be reduced, and the measurement accuracy is improved.

[0033] Specifically, by rotating the pressing plate 15 to align with the high position to be measured and making contact, the pressing plate 15 can be lifted up, so that the displayed data between the top of the lifting sleeve 14 and the height difference scale line 11 can be read to determine the height difference data between the pressing plate 15 and the end of the measuring tip 39, and then the actual thickness data pressed and taken out by the pressing plate 15 can be calculated. When it is necessary to measure the tip area, the supporting screw 19 is rotated and moved upward to avoid obstruction of the pressing piece 20. In this state, the middle area of the pressing plate 15 is pressed on the tip When the tip is on the end area, multiple contact points will be generated, including the pressing piece 20 pressing on the top of the tip and the bottom of the clamping groove 16 pressing on the side slope of the tip. Therefore, it can be ensured that the weight of the entire high-position measuring mechanism 8 will not be pressed entirely on the tip. At this time, damage to the tip area can be avoided. At the same time, the height difference between the bottom of the pressing piece 20 and the bottom of the pressing plate 15 can be obtained with the help of the compensation scale line 23. The thickness data measured at the pressing plate 15 is added to the data measured by the compensation scale line 23 to obtain the thickness data of the tip in this state.

[0034] In this embodiment, the drive mechanism 2 includes a motor 28 and a drive guide roller 27. A drive shaft 29 is inserted into the output end of the motor 28. The drive guide roller 27 is welded to the surface of the drive shaft 29. An anti-slip ring 33 is welded to the end of the drive shaft 29. The top of the drive guide roller 27 protrudes from the surface of the strip-shaped hole 3. A support collar 30 is also sleeved on the surface of the drive shaft 29. A spring rod 31 is welded to the bottom of each support collar 30. Two support collars 30 and two spring rods 31 are welded to the bottom of each support collar 30, each of which is concealed within the strip-shaped hole 3. A retraction ring 32 is integrally formed on one side of the anti-slip ring 33. The traction rope 26 is connected to the side of the retraction ring 32. A guide pulley 34 is welded to the bottom of the top plate 6. The traction rope 26 passes over the top of the guide pulley 34. A docking collar 35 is mounted on the end of the traction rope 26. The docking collar 35 is designed to be sleeved onto the surface of the extension rod 13. The energy dissipation assembly 4 includes an energy dissipation box 25 and an energy dissipation plate 37. An elastic pad 36 is mounted inside the energy dissipation box 25. The energy dissipation plate 37 is mounted on the bottom of the elastic pad 36 and has an overall arc-shaped structure. The bottom of the energy dissipation plate 37 is used to press against the surface of the anti-slip ring 33. The drive mechanism 2 simultaneously achieves the effects of conveying the workpiece and raising and lowering the measuring mechanism. When controlling the downward movement of the measuring mechanism, the drive mechanism 2 can also limit the impact force generated by the downward movement of the measuring mechanism, further reducing the damage caused by thickness measurement in the tip area.

[0035] Specifically, after starting the motor 28, the drive guide roller 27 is driven to rotate by the drive shaft 29 to push the workpiece, and the winding ring 32 also drives the traction rope 26 to be wound. At this time, the measuring mechanism moves up, and in this process, the workpiece is pressed on the drive guide roller 27, causing the entire driving mechanism 2 to move down slightly, the spring rod 31 is compressed, and the anti-slip ring 33 at the end is separated from the energy dissipation plate 37. When the workpiece is moved into place, the spring rod 31 moves the driving mechanism 2 up, and the anti-slip ring 33 rests on the energy dissipation plate 37. Therefore, in the process of the measuring mechanism moving down again, the damping effect provided by the anti-slip ring 33 resting on the energy dissipation plate 37 can be used to ensure that the measuring mechanism will not drop quickly, and to ensure that the measuring tip 39 will not produce a large rigid collision with the surface of the workpiece.

[0036] The basic principles, main features and advantages of the present invention are shown and described above. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention.

[0037] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A device for measuring the thickness of a workpiece processed by a 3D printer for construction, comprising a measuring device body, characterized in that: The measuring device body comprises a measuring platform (1), a driving mechanism (2), an energy dissipation component (4) and a measuring mechanism. A bracket (5) is welded to the rear end of the surface of the measuring platform (1), a top plate (6) is welded to the top of the bracket (5), the measuring mechanism is installed below the top plate (6), and the measuring mechanism comprises a low-position measuring mechanism (7) and a high-position measuring mechanism (8). The top of the low-position measuring mechanism (7) extends upward from the surface of the top plate (6), and the low-position measuring mechanism (7) is used to measure the area on the surface of the workpiece according to the measurement result. Press fitting, the high-position measuring mechanism (8) is used to fit the surface area of the workpiece, the surface of the measuring platform (1) is provided with a strip hole (3), the interior of the strip hole (3) is embedded with a driving mechanism (2), the surface of the measuring platform (1) is also screwed with an energy dissipation component (4), the energy dissipation component (4) is installed at the end of the strip hole (3), the end of the driving mechanism (2) is embedded in the interior of the energy dissipation component (4), and the top of the driving mechanism (2) protrudes upward from the strip hole (3) in the initial state.

2. The device for measuring thickness of workpieces processed by a 3D printer for construction according to claim 1, characterized in that: The low-position measuring mechanism (7) comprises a measuring rod (9) and an extension rod (13); the top of the surface of the measuring rod (9) is engraved with a low-position scale line (10); the bottom of the surface of the measuring rod (9) is engraved with a height difference scale line (11); the bottom end of the measuring rod (9) is integrally formed with a support plate (12); and the bottom of the support plate (12) is integrally formed with a measuring tip (39).

3. The device for measuring thickness of workpieces processed by a 3D printer for construction according to claim 2, characterized in that: The measuring rod (9) is pressed against the surface of the workpiece to be measured through the measuring tip (39) at the bottom, and the measuring rod (9) passes through the middle position of the top plate (6). The extension rods (13) are welded to both sides of the measuring rod (9) in a symmetrical form, and a limiting protrusion is welded to the end of each extension rod (13).

4. The device for measuring thickness of workpieces processed by a 3D printer for construction according to claim 2, characterized in that: The high-position measuring mechanism (8) comprises a pressing plate (15), a clamping groove (16) and a pressing piece (20); the clamping groove (16) is integrally formed on the surface of the pressing plate (15); the pressing piece (20) is embedded in the interior of the clamping groove (16); and a lifting sleeve (14) is welded to one end of the pressing plate (15).

5. The device for measuring thickness of workpieces processed by a 3D printer for construction according to claim 4, characterized in that: The high-position measuring mechanism (8) is sleeved on the surface of the measuring rod (9) through a lifting sleeve (14), and the supporting plate (12) is used to support the bottom of the lifting sleeve (14). A partition (17) is welded to the top of the clamping groove (16), a positioning hole (18) is opened in the middle of the partition (17), and a supporting screw (19) is inserted into the surface of the partition (17), and a supporting plate (38) is welded to the bottom end of each supporting screw (19).

6. The device for measuring thickness of workpieces processed by a 3D printer for construction according to claim 5, characterized in that: The side of the pressing piece (20) is integrally formed with a protrusion (24), and a stabilizing spring (21) is welded to the surface of the pressing piece (20). The side of the pressing piece (20) fits in with the inner wall of the clamping groove (16), and the protrusion (24) is embedded in the inner wall of the clamping groove (16). The supporting plate (38) and the supporting screw (19) are rotated downward and fit in with the surface of the pressing piece (20). A positioning rod (22) is welded in the middle of the pressing piece (20), and a compensation scale line (23) is engraved on the surface of the positioning rod (22), and the positioning rod (22) passes through the inside of the positioning hole (18).

7. The device for measuring thickness of workpieces processed by a 3D printer for construction according to claim 2, characterized in that: The driving mechanism (2) comprises a motor (28) and a driving guide roller (27); a driving shaft (29) is inserted into the output end of the motor (28); the driving guide roller (27) is welded to the surface of the driving shaft (29); an anti-slip ring (33) is welded to the end of the driving shaft (29); and the top of the driving guide roller (27) protrudes from the surface of the strip hole (3).

8. The device for measuring thickness of workpieces processed by a 3D printer for construction according to claim 7, characterized in that: The surface of the driving shaft (29) is also sleeved with a supporting collar (30), the bottom of which is welded with a spring rod (31), and there are two supporting collars (30) and two spring rods (31), and each supporting collar (30) is hidden inside the strip hole (3).

9. The device for measuring thickness of workpieces processed by a 3D printer for construction according to claim 8, characterized in that: A retracting ring (32) is integrally formed on one side of the anti-slip ring (33), a traction rope (26) is connected to the side of the retracting ring (32), a guide pulley (34) is welded to the bottom of the top plate (6), the traction rope (26) is passed around the top of the guide pulley (34), and a docking ring (35) is installed at the end of the traction rope (26), and the docking ring (35) is used to be sleeved on the surface of the extension rod (13).

10. The device for measuring thickness of workpieces processed by a 3D printer for construction according to claim 9, characterized in that: The energy dissipation assembly (4) comprises an energy dissipation box (25) and an energy dissipation plate (37). An elastic pad (36) is mounted inside the energy dissipation box (25). The energy dissipation plate (37) is mounted on the bottom of the elastic pad (36). The energy dissipation plate (37) is in an arc-shaped structure as a whole. The bottom of the energy dissipation plate (37) is used to press on the surface of the anti-slip ring (33).

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