Parallel coplanar laser measuring instrument

Abstract

The application relates to the technical field of laser measuring instruments, and discloses a parallel coplanar laser measuring instrument which comprises a laser measuring device and a working cabinet, the top of the working cabinet is provided with an LED screen, and the laser measuring device is installed on the front face of the working cabinet. The parallel coplanar laser measuring instrument is provided with a to-be-measured bearing plate, a connecting threaded rod and a metal sliding rail, the to-be-measured bearing plate and the connecting threaded rod slide on the surface of the metal sliding rail, then a nut is rotated, the nut rotates on the surface of the connecting threaded rod, so that the to-be-measured bearing plate and the metal sliding rail can be locked and fixed, different specifications of objects can be clamped and fixed, the to-be-measured bearing plate slides on the surface of the metal sliding rod, so that the position of the to-be-measured bearing plate can be adjusted, the number of the metal sliding rods is multiple, and the multiple metal sliding rods can keep the to-be-measured bearing plate stable, the object can be prevented from separating from the to-be-measured bearing plate, and the clamping of the object is more stable.

Description

Technical Field

[0001] This invention relates to the field of laser measuring instrument technology, specifically to a parallel coplanar laser measuring instrument. Background Technology

[0002] The parallel coplanar laser measuring instrument is a high-precision measuring tool that combines laser technology with the geometric concept of parallel coplanarity to achieve accurate, non-contact measurement of the plane of an object.

[0003] The parallel coplanar laser measuring instrument has an internal support platform that can support the object, allowing the laser measuring instrument to perform laser measurement operations on the object. When the support platform is installed at the bottom of the parallel coplanar laser measuring instrument, the entire device needs to be disassembled to replace it, making the replacement of the support platform quite troublesome and time-consuming. Summary of the Invention

[0004] The purpose of this invention is to provide a parallel coplanar laser measuring instrument to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a parallel coplanar laser measuring instrument, comprising a laser measuring device and a working chassis, wherein an LED screen is mounted on the top of the working chassis and the laser measuring device is mounted on the front of the working chassis.

[0006] The laser measuring device includes a measuring housing, a connecting socket, a supporting housing, a laser generator, a connecting frame, a second limiting frame, a supporting component, and a supporting base. The connecting socket is fixedly connected to the top of the measuring housing. The second limiting frame is installed on both sides of the measuring housing. The supporting housing is installed on the top of the second limiting frame. The laser generator is installed on the inner wall surface of the supporting housing. The connecting frame is connected to the surface of the laser generator. The supporting component is installed on the top of the supporting base. The supporting base is installed on the bottom of the measuring housing.

[0007] The laser generator includes a limiting frame, a laser generator body, a connecting wire, and a metal block. The connecting wire is fixedly connected to the back of the laser generator body. The laser generator body is mounted on the inner wall surface of the limiting frame. The metal block is fixedly connected to the outer surface of the limiting frame.

[0008] The bearing assembly includes a limiting block, a metal slide bar, a metal slide rail, a bearing plate to be tested, and a connecting threaded rod. The connecting threaded rod is fixedly connected to the front of the bearing plate to be tested, the bearing plate to be tested is slidably connected to the surface of the metal slide bar, the limiting block is fixedly connected to both sides of the metal slide bar, and the metal slide rail is fixedly connected to the front of the limiting block.

[0009] Preferably, the connecting frame includes a connecting block, a threaded rod, a metal cylinder, a sliding frame, a limiting block, a connecting sleeve, and a connecting rod. The connecting block is fixedly connected to the back of the threaded rod, the threaded rod is slidably connected to the inner wall surface of the metal cylinder, the metal cylinder is fixedly connected to the back of the sliding frame, the limiting block is rotatably connected to the bottom of the sliding frame, the connecting sleeve is inserted into the front of the threaded rod, and the connecting sleeve is fixedly connected to the upper and lower surfaces of the connecting rod.

[0010] Preferably, the second limiting frame includes a metal shell, a metal plate, a support plate, and a threaded rod. The metal plate is fixedly connected to the top of the metal shell, the metal plate is installed on the top of the threaded rod, and the support plate is installed on the upper part of the metal plate.

[0011] Preferably, the bearing plate includes a plug-in metal plate, a second metal block, an L-shaped metal plate, and a locking threaded rod. The locking threaded rod is fixedly connected to the outer surface of the L-shaped metal plate, the plug-in metal plate is slidably connected to the surface of the locking threaded rod, and the second metal block is fixedly connected to the outer surface of the plug-in metal plate.

[0012] Preferably, the supporting housing is slidably connected to the inner wall surface of the measuring housing, the supporting housing is slidably connected to the inner wall surface of the metal housing, the supporting housing is slidably connected to the top of the L-shaped metal plate, the L-shaped metal plate is slidably connected to the inward side surface of the metal housing, the inserting metal plate is slidably connected to the outward side surface of the metal housing, and the locking threaded rod is slidably connected to the inner wall surface of the metal housing. The supporting housing is inserted into the interior of the measuring housing, so that the supporting housing moves backward along the inner wall surface of the metal housing, while the supporting housing is supported by the L-shaped metal plate.

[0013] Preferably, the metal block is movably connected to the back of the metal cylinder, and the metal cylinder is movably connected to the top of the measuring housing. The metal cylinder moves backward so that the front of the metal cylinder and the metal block are connected, thereby enabling the position of the sliding frame and the metal cylinder to be determined.

[0014] Preferably, the limiting block is slidably connected to the front of the bearing housing, the sliding frame is slidably connected to the front of the bearing housing, the threaded rod is slidably connected to the inner wall surface of the sliding frame, and the limiting block is inserted into the bottom of the sliding frame, thereby determining the position of the sliding frame. Then, the nut is rotated, and the nut rotates on the surface of the threaded rod, thereby determining the position of the sliding frame.

[0015] Preferably, the connecting threaded rod is movably connected to the inner wall surface of the metal slide rail, the metal slide rail is slidably connected to the front of the bearing plate to be tested, the bearing plate to be tested is slidably connected to the surface of the metal slide rod, the limiting block is inserted into the top of the bearing base, the bearing plate to be tested slides on the surface of the metal slide rail, thereby adjusting the position of the bearing plate to be tested, and at the same time, the bearing plate to be tested slides on the surface of the metal slide rod, thereby adjusting and determining the position of the bearing plate to be tested.

[0016] Preferably, the metal plate is slidably connected to the top of the threaded rod, the second metal block is slidably connected to the bottom of the threaded rod, the metal outer shell is inserted into both sides of the measuring outer shell, and the position of the second metal block is determined by adjusting the L-shaped metal plate with the help of the metal plate and the threaded rod, so as to clamp and fix the bearing outer shells of different specifications.

[0017] Preferably, the connecting block is slidably connected to the outward surface of the limiting frame, the connecting block is movably connected to the back of the metal block, and the metal block is slidably connected to the surface of the threaded rod. When the connecting block moves forward, it can push the threaded rod outward, so that the threaded rod is inserted into the inner wall surface of the metal block. This allows the positions of the connecting block and the threaded rod to be determined, thereby connecting the connecting block and the limiting frame and facilitating the adjustment of the position of the laser generator body.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. This parallel coplanar laser measuring instrument is equipped with a test plate, a connecting threaded rod, and a metal slide rail. The test plate and the connecting threaded rod slide on the surface of the metal slide rail. Then, by rotating the nut, the nut rotates on the surface of the connecting threaded rod, thereby locking and fixing the test plate and the metal slide rail. It can clamp and fix objects of different specifications.

[0020] 2. This parallel coplanar laser measuring instrument, by setting a limit block, a metal slide bar and a test support plate, allows the test support plate to slide on the surface of the metal slide bar, thereby adjusting the position of the test support plate. There are multiple metal slide bars, which can keep the test support plate stable and prevent the object from falling off the test support plate, making the clamping of the object more stable.

[0021] 3. This parallel coplanar laser measuring instrument is equipped with a limit block, a support base, a metal shell, and a measuring shell. The support base and the limit block slide along the inner wall surface of the metal shell and the measuring shell, thereby adjusting the position of the limit block and the support base, and facilitating the disassembly and replacement of the support base and the limit block.

[0022] 4. This parallel coplanar laser measuring instrument is equipped with a metal shell, an L-shaped metal plate, and a support shell. The support shell slides along the inner wall surface of the metal shell, the measuring shell, and the L-shaped metal plate, thereby clamping and fixing the support shell, protecting the laser generator body inside the support shell, and preventing damage to the laser generator body.

[0023] 5. This parallel coplanar laser measuring instrument is equipped with a threaded rod, a second metal block, and a metal outer shell. The threaded rod can adjust the position of the second metal block, which can adjust the position of the L-shaped metal plate, and can clamp and fix the bearing shell of different specifications.

[0024] 6. This parallel coplanar laser measuring instrument, by setting a limit block, a sliding frame, a metal block, and a limit frame, can determine the position of the limit frame by the sliding frame and the limit block, thereby adjusting the position of the laser generator body, preventing the laser generator body from detaching from the supporting shell, and protecting the safety of the laser generator body.

[0025] 7. This parallel coplanar laser measuring instrument is equipped with a sliding frame, a limiting frame, and a laser generator body. The sliding frame moves the position of the laser generator body through a metal block and the limiting frame. The laser generator body moves left and right on the inner wall surface of the supporting shell, thereby adjusting the position of the laser generator body. This facilitates laser measurement of objects of different sizes and allows for multiple data distance measurement operations.

[0026] 8. This parallel coplanar laser measuring instrument is equipped with a connecting block, a threaded rod, and a metal block. The connecting block can push the threaded rod forward so that the threaded rod can be inserted into the interior of the metal block, which can clamp and fix the limiting frame, thereby determining the position of the connecting block and preventing the limiting frame from detaching from the laser generator body. Attached Figure Description

[0027] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the present invention;

[0028] Figure 2 This is a three-dimensional schematic diagram of the structural work chassis, LED screen, measuring shell, and connection socket of the present invention.

[0029] Figure 3 The structure of this invention Figure 2 A magnified view of the structure at point A in the diagram;

[0030] Figure 4 This is a three-dimensional schematic diagram of the laser generator and connecting frame of the present invention;

[0031] Figure 5 This is a three-dimensional schematic diagram of the structural limiting frame 1, the metal block 1, and the connecting frame of the present invention;

[0032] Figure 6 The structure of this invention Figure 5 Enlarged schematic diagram of the structure at point B in the middle;

[0033] Figure 7 This is a three-dimensional schematic diagram of the limiting block of the present invention;

[0034] Figure 8 This is a three-dimensional schematic diagram of the structural limiting frame of the present invention;

[0035] Figure 9 This is a three-dimensional schematic diagram of the structure of the present invention, showing the insertion of a metal plate and a metal block;

[0036] Figure 10 This is a three-dimensional schematic diagram of the structural support plate of the present invention;

[0037] Figure 11 The structure of this invention Figure 10 Enlarged view of the structure at point C;

[0038] Figure 12 This is a three-dimensional schematic diagram of the structural support component and support base of the present invention;

[0039] Figure 13 The structure of this invention Figure 12 Enlarged schematic diagram of the structure at point D;

[0040] Figure 14 This is a three-dimensional schematic diagram of the bearing plate and connecting threaded rod of the present invention under test;

[0041] Figure 15 This is a three-dimensional schematic diagram of the structural limiting plug, metal slide bar, and metal slide rail of the present invention.

[0042] In the diagram: 1. Laser measuring instrument; 11. Measuring housing; 12. Connecting socket; 13. Support housing; 14. Laser generator; 141. Limiting frame one; 142. Laser generator body; 143. Connecting cable; 144. Metal block one; 15. Connecting frame; 151. Connecting block; 152. Threaded rod; 153. Metal cylinder; 154. Sliding frame; 155. Limiting block; 156. Connecting sleeve; 157. Connecting rod; 16. Limiting frame two 161. Metal casing; 162. Metal plate; 163. Bearing plate; 1631. Inserted metal plate; 1632. Metal block two; 1633. L-shaped metal plate; 1634. Locking threaded rod; 164. Inserted threaded rod; 17. Bearing assembly; 171. Limiting block; 172. Metal slide rod; 173. Metal slide rail; 174. Bearing plate to be tested; 175. Connecting threaded rod; 18. Bearing base; 2. Working machine box; 3. LED screen. Detailed Implementation

[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] Please see Figures 1-15 The present invention provides the following technical solutions:

[0045] A parallel coplanar laser measuring instrument includes a laser measuring device 1 and a working housing 2. An LED screen 3 is mounted on the top of the working housing 2, and the laser measuring device 1 is mounted on the front of the working housing 2.

[0046] The laser measuring device 1 includes a measuring housing 11, a connecting socket 12, a supporting housing 13, a laser generator 14, a connecting frame 15, a second limiting frame 16, a supporting component 17, and a supporting base 18. The connecting socket 12 is fixedly connected to the top of the measuring housing 11. The second limiting frame 16 is installed on both sides of the measuring housing 11. The supporting housing 13 is installed on the top of the second limiting frame 16. The laser generator 14 is installed on the inner wall surface of the supporting housing 13. The connecting frame 15 is connected to the surface of the laser generator 14. The supporting component 17 is installed on the top of the supporting base 18. The supporting base 18 is installed on the bottom of the measuring housing 11.

[0047] The laser generator 14 includes a limiting frame 141, a laser generator body 142, a connecting line 143, and a metal block 144. The connecting line 143 is fixedly connected to the back of the laser generator body 142. The laser generator body 142 is mounted on the inner wall surface of the limiting frame 141. The metal block 144 is fixedly connected to the outer surface of the limiting frame 141.

[0048] The bearing assembly 17 includes a limiting block 171, a metal slide rod 172, a metal slide rail 173, a bearing plate to be tested 174, and a connecting threaded rod 175. The connecting threaded rod 175 is fixedly connected to the front of the bearing plate to be tested 174, and is movably connected to the inner wall surface of the metal slide rail 173. The metal slide rail 173 is slidably connected to the front of the bearing plate to be tested 174, and the bearing plate to be tested 174 is slidably connected to the surface of the metal slide rod 172. The limiting block 171 is inserted into the bearing base. At the top of the seat 18, the test bearing plate 174 slides on the surface of the metal slide rail 173, thereby adjusting the position of the test bearing plate 174. At the same time, the test bearing plate 174 slides on the surface of the metal slide rod 172, thereby adjusting the position of the test bearing plate 174. The test bearing plate 174 is slidably connected to the surface of the metal slide rod 172. The limiting plug 171 is fixedly connected to both sides of the metal slide rod 172. The metal slide rail 173 is fixedly connected to the front of the limiting plug 171.

[0049] The connecting frame 15 includes a connecting block 151, a threaded rod 152, a metal cylinder 153, a sliding frame 154, a limiting block 155, a connecting sleeve 156, and a connecting rod 157. The connecting block 151 is fixedly connected to the back of the threaded rod 152. The connecting block 151 is slidably connected to the outward surface of the limiting frame 141. The connecting block 151 is movably connected to the back of the metal block 144. The metal block 144 is slidably connected to the surface of the threaded rod 152. The connecting block 151 moves forward. The connecting block 151 can push the threaded rod 152 outward, so that the threaded rod 152 is inserted into the inner wall surface of the metal block 144, thereby determining the position of the connecting block 151 and the threaded rod 152, and thus connecting the connecting block 151 and the limiting frame 141, facilitating the adjustment of the position of the laser generator body 142. The threaded rod 152 is slidably connected to the inner wall surface of the metal cylinder 153, and the metal block 144 is movably connected to the back of the metal cylinder 153. On one side, the metal cylinder 153 is movably connected to the top of the measuring housing 11. The metal cylinder 153 moves backward, so that the front of the metal cylinder 153 and the metal block 144 are connected, thereby determining the position of the sliding frame 154 and the metal cylinder 153. The metal cylinder 153 is fixedly connected to the back of the sliding frame 154. The limiting block 155 is slidably connected to the front of the bearing housing 13. The sliding frame 154 is slidably connected to the front of the bearing housing 13. The threaded rod 152 is slidably connected to the inner wall surface of the sliding frame 154. The limiting block 155 is inserted into the bottom of the sliding frame 154, thereby determining the position of the sliding frame 154. Then, the nut is rotated, and the nut rotates on the surface of the threaded rod 152, thereby determining the position of the sliding frame 154. The limiting block 155 is rotatably connected to the bottom of the sliding frame 154. The connecting sleeve 156 is inserted into the front of the threaded rod 152. The connecting sleeve 156 is fixedly connected to the upper and lower surfaces of the connecting rod 157.

[0050] The limiting frame 16 includes a metal shell 161, a metal plate 162, a bearing plate 163, and a threaded rod 164. The metal plate 162 is fixedly connected to the top of the metal shell 161, the metal plate 162 is installed on the top of the threaded rod 164, and the bearing plate 163 is installed on the upper part of the metal plate 162.

[0051] The support plate 163 includes an insertable metal plate 1631, a metal block 1632, an L-shaped metal plate 1633, and a locking threaded rod 1634. The locking threaded rod 1634 is fixedly connected to the outer surface of the L-shaped metal plate 1633. The support housing 13 is slidably connected to the inner wall surface of the measuring housing 11. The support housing 13 is slidably connected to the inner wall surface of the metal housing 161. The support housing 13 is slidably connected to the top of the L-shaped metal plate 1633. The L-shaped metal plate 1633 is slidably connected to the inner surface of the metal housing 161. The insertable metal plate 1631 is slidably connected to the outer surface of the metal housing 161. The locking threaded rod 1634 is slidably connected to the inner wall surface of the metal housing 161. The support housing 13 is inserted into the measuring housing. Inside the shell 11, the supporting shell 13 moves backward along the inner wall surface of the metal shell 161. At the same time, the supporting shell 13 is supported by the L-shaped metal plate 1633. The inserting metal plate 1631 is slidably connected to the surface of the locking threaded rod 1634. The second metal block 1632 is fixedly connected to the outer surface of the inserting metal plate 1631. The metal plate 162 is slidably connected to the top of the inserting threaded rod 164. The second metal block 1632 is slidably connected to the bottom of the inserting threaded rod 164. The metal shell 161 is inserted into both sides of the measuring shell 11. The second metal block 1632 is used to adjust the position of the L-shaped metal plate 1633 with the help of the metal plate 162 and the inserting threaded rod 164, so that the supporting shells 13 of different specifications can be clamped and fixed.

[0052] When in use, hold the surface of the connecting rod 157. The connecting rod 157 can drive the threaded rod 152 to move left and right through the connecting sleeve 156. The threaded rod 152 drives the laser generator body 142 to move left and right inside the bearing housing 13 through the metal block 144 and the limiting frame 141, thereby adjusting the position of the laser generator 14.

[0053] Push the test support plate 174 to move left and right. The test support plate 174 slides on the surface of the metal slide rod 172. The test support plate 174 can drive the connecting threaded rod 175 to slide on the inner wall surface of the metal slide rail 173. The position of the test support plate 174 can be adjusted. Then, turn the nut. The nut rotates on the surface of the connecting threaded rod 175, which can lock and fix the test support plate 174 and the metal slide rail 173.

[0054] The object to be tested is pushed backward and slides along the top of the test support plate 174. The test support plate 174 can clamp and fix the object, and then operate on the surface of the LED screen 3. The LED screen 3 can perform measurement operations on the object through the laser generator body 142, and the measurement data is displayed on the LED screen 3.

[0055] When the laser generator body 142 needs maintenance, the support housing 13 is pulled forward and slides along the surfaces of the measuring housing 11, the metal housing 161 and the L-shaped metal plate 1633.

[0056] The carrier housing 13 can drive the laser generator body 142 to move forward, and the laser generator body 142 drives the connecting line 143 to move forward, so that the connecting line 143 is disconnected from the connecting socket 12, and at the same time the carrier housing 13 is disconnected from the measuring housing 11.

[0057] Hold the middle position of the connecting rod 157 and pull the connecting rod 157 forward, so that the connecting rod 157 drives the connecting sleeve 156 to move forward, so that the connecting sleeve 156 disengages from the threaded rod 152.

[0058] Rotate the limiting block 155, and the limiting block 155 disengages from the sliding frame 154, causing the connection between the sliding frame 154 and the supporting housing 13 to loosen, pulling the sliding frame 154 to move upward. The sliding frame 154 moves upward through the threaded rod 152 and the metal block 144. The metal block 144 can drive the limiting frame 141 to move upward, causing the limiting frame 141 to disengage from the laser generator body 142.

[0059] Pull the laser generator body 142 upwards to detach it from the supporting housing 13, making it easy to disassemble and replace the laser generator body 142.

[0060] After replacing the laser generator body 142, a limit frame 141 of the same specifications can be used according to the specifications of the laser generator body 142.

[0061] Pulling the sliding frame 154 forward moves the metal cylinder 153 forward. The sliding frame 154 and the metal cylinder 153 disengage from the threaded rod 152, allowing the sliding frame 154 and the metal cylinder 153 to be replaced.

[0062] Pulling the connecting block 151 backward causes the threaded rod 152 to move backward, allowing the threaded rod 152 to disengage from the metal block 144. Then, the connecting block 151, threaded rod 152, metal cylinder 153, sliding frame 154, and new specification limit frame 141 are inserted and fixed, thereby clamping and fixing the new specification limit frame 141.

[0063] Rotating the nut causes it to rotate on the surface of the threaded rod 164, loosening the connection between the threaded rod 164 and the metal plate 162. At this point, the threaded rod 164, the metal plate 1631, and the second metal block 1632 move downwards. The second metal block 1632 can drive the locking threaded rod 1634 to move downwards, which in turn drives the metal plate 1631 to move downwards. This allows the position of the metal plate 1631 to be adjusted, enabling the clamping and fixing of different specifications of the bearing housing 13. Consequently, the position of the L-shaped metal plate 1633 can be adjusted according to the specifications of the laser generator body 142.

[0064] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A parallel coplanar laser measuring instrument comprising a laser measuring device (1) and a working cabinet (2), characterized in that: An LED screen (3) is installed on the top of the work chassis (2), and the laser measuring device (1) is installed on the front of the work chassis (2); The laser measuring device (1) includes a measuring shell (11), a connecting socket (12), a supporting shell (13), a laser generator (14), a connecting frame (15), a second limiting frame (16), a supporting component (17), and a supporting base (18). The connecting socket (12) is fixedly connected to the top of the measuring shell (11). The second limiting frame (16) is installed on both sides of the measuring shell (11). The supporting shell (13) is installed on the top of the second limiting frame (16). The laser generator (14) is installed on the inner wall surface of the supporting shell (13). The connecting frame (15) is connected to the surface of the laser generator (14). The supporting component (17) is installed on the top of the supporting base (18). The supporting base (18) is installed on the bottom of the measuring shell (11). The laser generator (14) includes a limiting frame (141), a laser generator body (142), a connecting line (143), and a metal block (144). The connecting line (143) is fixedly connected to the back of the laser generator body (142). The laser generator body (142) is installed on the inner wall surface of the limiting frame (141). The metal block (144) is fixedly connected to the outer surface of the limiting frame (141). The bearing assembly (17) includes a limiting plug (171), a metal slide bar (172), a metal slide rail (173), a bearing plate to be tested (174), and a connecting threaded rod (175). The connecting threaded rod (175) is fixedly connected to the front of the bearing plate to be tested (174). The bearing plate to be tested (174) is slidably connected to the surface of the metal slide bar (172). The limiting plug (171) is fixedly connected to both sides of the metal slide bar (172). The metal slide rail (173) is fixedly connected to the front of the limiting plug (171). The connecting frame (15) includes a connecting block (151), a threaded rod (152), a metal cylinder (153), a sliding frame (154), a limiting block (155), a connecting sleeve (156), and a connecting rod (157). The connecting block (151) is fixedly connected to the back of the threaded rod (152). The threaded rod (152) is slidably connected to the inner wall surface of the metal cylinder (153). The metal cylinder (153) is fixedly connected to the back of the sliding frame (154). The limiting block (155) is rotatably connected to the bottom of the sliding frame (154). The connecting sleeve (156) is inserted into the front of the threaded rod (152). The connecting sleeve (156) is fixedly connected to the upper and lower surfaces of the connecting rod (157). The second limiting frame (16) includes a metal shell (161), a metal plate (162), a bearing plate (163), and a threaded rod (164). The metal plate (162) is fixedly connected to the top of the metal shell (161), the metal plate (162) is installed on the top of the threaded rod (164), and the bearing plate (163) is installed on the upper part of the metal plate (162). The support plate (163) includes a plug-in metal plate (1631), a second metal block (1632), an L-shaped metal plate (1633), and a locking threaded rod (1634). The locking threaded rod (1634) is fixedly connected to the outer surface of the L-shaped metal plate (1633). The plug-in metal plate (1631) is slidably connected to the surface of the locking threaded rod (1634). The second metal block (1632) is fixedly connected to the outer surface of the plug-in metal plate (1631).

2. A parallel coplanar laser measuring instrument according to claim 1, wherein: The supporting shell (13) is slidably connected to the inner wall surface of the measuring shell (11), the supporting shell (13) is slidably connected to the inner wall surface of the metal shell (161), the supporting shell (13) is slidably connected to the top of the L-shaped metal plate (1633), the L-shaped metal plate (1633) is slidably connected to the inner side surface of the metal shell (161), the plug-in metal plate (1631) is slidably connected to the outer side surface of the metal shell (161), and the locking threaded rod (1634) is slidably connected to the inner wall surface of the metal shell (161).

3. A parallel coplanar laser measuring instrument according to claim 2, wherein: The metal block (144) is movably connected to the back of the metal cylinder (153), which is movably connected to the top of the measuring housing (11).

4. A parallel coplanar laser measuring instrument according to claim 3, wherein: The limiting block (155) is slidably connected to the front of the bearing shell (13), the sliding frame (154) is slidably connected to the front of the bearing shell (13), and the threaded rod (152) is slidably connected to the inner wall surface of the sliding frame (154).

5. A parallel coplanar laser measuring instrument according to claim 4, wherein: The connecting threaded rod (175) is movably connected to the inner wall surface of the metal slide rail (173), the metal slide rail (173) is slidably connected to the front of the bearing plate (174) to be tested, the bearing plate (174) to be tested is slidably connected to the surface of the metal slide rod (172), and the limiting plug (171) is inserted into the top of the bearing base (18).

6. A parallel coplanar laser measuring instrument according to claim 5, wherein: The metal plate (162) is slidably connected to the top of the threaded rod (164), the second metal block (1632) is slidably connected to the bottom of the threaded rod (164), and the metal shell (161) is inserted into both sides of the measuring shell (11).

7. A parallel coplanar laser measuring instrument according to claim 6, wherein: The connecting block (151) is slidably connected to the outer surface of the limiting frame (141), the connecting block (151) is movably connected to the back of the metal block (144), and the metal block (144) is slidably connected to the surface of the threaded rod (152).

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