Workpiece surface flatness detection tool

Abstract

The utility model relates to a workpiece surface flatness detection tool. The technical problem that existing flatness detection efficiency is low is solved. Comprising two supporting frames which are vertically and correspondingly arranged, a U-shaped plate which is horizontally arranged is arranged between the supporting frames through a vertical adjustable sliding mounting structure, a rotating plate located between the two supporting frames is movably arranged on one side of the U-shaped plate through a rotating adjustable mounting structure, and a moving plate which is crossed with the rotating plate is arranged on the side, away from the U-shaped plate, of the rotating plate; a flatness detection assembly is arranged on the moving plate, and a detection tool sliding pushing structure capable of driving the moving plate to move in the axial direction of the rotating plate is arranged between the rotating plate and the moving plate. The flatness detection device has the advantages that a user can conveniently detect and record the flatness of a workpiece through the flatness detection assembly and the detection tool sliding pushing structure, the detection efficiency is improved, and the detection effect is guaranteed. The position of the substrate can be conveniently adjusted through the substrate positioning structure and the substrate positioning assembly, the workpiece can be conveniently detected, and the detection efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of detection tools, and in particular relates to a workpiece surface flatness detection tool. Background Art

[0002] Flatness, when processing or producing something, the surface is not absolutely flat. The difference between unevenness and absolute level is flatness. In the furniture industry, flatness refers to the local flatness of the product surface within the range of 0 to 150 mm.

[0003] In the prior art, when the flatness of a workpiece surface is detected, some parts of the workpiece surface may be uneven. When workers detect some larger workpieces, they may not be able to complete the detection in one go because the workpiece surface is too large, so multiple detections are required, which wastes working time and reduces work efficiency. Summary of the invention

[0004] The purpose of the utility model is to provide a workpiece surface flatness detection tool in view of the above problems.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a workpiece surface flatness detection tool, comprising two vertically correspondingly arranged support frames, a horizontally arranged U-shaped plate is provided between the support frames through a vertically adjustable sliding mounting structure, a rotating plate located between the two support frames is movably provided on one side of the U-shaped plate through a rotating adjustable mounting structure, a movable plate arranged crosswise with the rotating plate is provided on the side of the rotating plate away from the U-shaped plate, a flatness detection component is provided on the movable plate, and a detection tool sliding propulsion structure that can drive the movable plate to move axially along the rotating plate is provided between the rotating plate and the movable plate, the flatness detection component can facilitate the movable plate to detect the flatness of the workpiece, and the detection tool sliding propulsion structure can make the movable plate slidably set on the rotating plate, which can improve the efficiency of flatness detection of the workpiece.

[0006] In the above-mentioned workpiece surface flatness detection tool, a storage groove is provided at the bottom of the rotating plate on one side close to the movable plate, a substrate is slidably installed inside the storage groove, a connecting plate is fixedly installed at one end of the substrate, which passes through the storage groove and extends to the side of the rotating plate away from the movable plate, and a substrate positioning structure is provided between the connecting plate and the rotating plate, which can extend the substrate out of the storage groove and position it relative to the rotating plate. The length of the connecting plate can be controlled by the substrate positioning structure, thereby controlling the length of the substrate, and it is convenient for the substrate to abut against the workpiece, thereby improving the flatness detection effect.

[0007] In the above-mentioned workpiece surface flatness detection tool, the substrate positioning structure includes a first pulling plate arranged at one end of the connecting plate away from the rotating plate, and a plurality of evenly distributed bayonet holes are sequentially opened on the connecting plate, and a substrate positioning component that can be plugged and positioned with any one of the plurality of bayonet holes is provided between the rotating plate and the connecting plate. By plugging and limiting the substrate positioning component with the bayonet hole, connecting plates of different lengths can be fixed and limited, thereby ensuring the stability of the substrate.

[0008] In the above-mentioned workpiece surface flatness detection tool, the substrate positioning assembly includes a support plate fixedly arranged on a side of a rotating plate away from a movable plate, two positioning springs are fixedly installed on the top of the support plate, a second pull plate is fixedly installed on the top of the two positioning springs, a clamping plate is fixedly installed on the bottom of the second pull plate, the bottom of the clamping plate passes through the support plate and is slidably connected to the support plate, and the clamping plate and any one of a number of clamping ports are plugged into and positioned with each other, and when it is necessary to adjust the length of the connecting plate, the second pull plate is pulled to disengage the clamping plate from the clamping port, and then the first pull plate is pulled to adjust the position of the substrate, and when the adjustment of the substrate is completed, the second pull plate is released, and the clamping plate enters the clamping port with the elastic force of the positioning spring and is fixedly connected to the connecting plate.

[0009] In the above-mentioned workpiece surface flatness detection tool, the vertically adjustable sliding mounting structure includes a first slide groove vertically arranged on one of the support frames and a second slide groove vertically arranged on the remaining support frame, a first threaded rod is rotatably installed inside the second slide groove, the top of the first threaded rod passes through the support frame and is fixedly installed with a first rotating shaft, the outer wall of the first threaded rod is threadedly connected with a first sliding block movably arranged in the second slide groove, a limiting rod is fixedly installed inside the first slide groove, a second sliding block is slidably installed on the outer wall of the limiting rod, and the two ends of the U-shaped plate correspond to the first sliding block and the second sliding block respectively and are fixedly connected, and the U-shaped plate can be easily adjusted in height through the first sliding block and the second sliding block, thereby improving the detection efficiency of the workpiece flatness.

[0010] In the above-mentioned workpiece surface flatness detection tool, the rotatable adjustable mounting structure includes a rotating rod with one end passing through a U-shaped plate and rotatably connected to the U-shaped plate, the other end of the rotating rod is connected to the rotating plate, and a base plate is fixedly mounted on the end of the rotating rod away from the rotating plate, a threaded hole is penetrated through the outer wall of the base plate, and a bolt is threadedly connected to the inner wall of the threaded hole, the base plate is detachably connected to the rotating rod by the bolt, and the rotating rod and the rotating plate can be driven to rotate synchronously by rotating the base plate, which can facilitate the adjustment of the position of the rotating plate and facilitate the rotating plate to detect the inclination of the workpiece.

[0011] In the above-mentioned workpiece surface flatness detection tool, a limit ring is fixedly installed on the outer wall of the rotating rod, and the side of the limit ring close to the U-shaped plate is in contact with the U-shaped plate. An angle groove is provided at one end of the U-shaped plate close to the bottom plate, and a pointer is fixedly installed on the outer wall of the bottom plate. When detecting the inclination of the workpiece, the bottom plate adjusts the rotating plate to rotate, and the pointer points to the angle groove, and the inclination of the workpiece can be displayed by the angle of the angle groove.

[0012] In the above-mentioned workpiece surface flatness detection tool, the sliding propulsion structure of the detection tool includes a third slide groove extending along the length direction of the rotating plate, a second threaded rod is rotatably arranged in the third slide groove, one end of the second threaded rod passes through the rotating plate and is fixedly installed with a second rotating shaft, a slide plate is threadedly connected to the outer wall of the second threaded rod, one end of the movable plate is fixedly connected to the slide plate and the movable plate is perpendicular to the rotating plate, and the slide plate can be driven to slide on the second threaded rod through the second rotating shaft, and the movable plate can be slid to the edge of the workpiece to detect the flatness of the workpiece.

[0013] In the above-mentioned workpiece surface flatness detection tool, the flatness detection component includes a plurality of flatness detection parts that are movably arranged on one side of a movable plate and are evenly distributed in sequence, and a plurality of scale grooves that are evenly distributed on one side of the movable plate and correspond one to one with the flatness detection parts respectively, and the scale grooves can be used to conveniently observe the detection data of the flatness detection parts, so that users can record them conveniently.

[0014] In the above-mentioned workpiece surface flatness detection tool, the outer wall of the movable plate is fixedly installed with a fixed plate vertically arranged with the scale groove, the flatness detection part includes a resist block spring fixedly installed at the bottom of the fixed plate and the resist block spring is evenly distributed, a resist block is fixedly installed at the bottom of the resist block spring, a connecting rod is fixedly installed at the top of the resist block, the top of the connecting rod passes through the fixed plate and is fixedly installed with a top plate, a roller is arranged at the bottom of the resist block, the roller can facilitate the sliding of the movable plate on the workpiece, and when the roller encounters an uneven part of the workpiece, the roller will rise or fall, and the resist block spring drives the top plate to rise or fall, and records the scale changes of the top plate on the scale groove, so as to detect the flatness of the workpiece.

[0015] Compared with the existing technology, the advantages of the utility model are:

[0016] 1. The flatness detection component and the sliding propulsion structure of the detection tool can facilitate users to detect and record the flatness of the workpiece, improve detection efficiency, and ensure detection results.

[0017] 2. The substrate positioning structure and the substrate positioning assembly can be used to adjust the position of the substrate and to limit and fix the substrate, thereby facilitating the detection of the workpiece and improving the detection efficiency.

[0018] 3. The vertically adjustable sliding installation structure can facilitate the U-shaped plate to slide up and down to adjust the position of the flatness detection component, which can further improve the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model.

[0020] Figure 2 It is a structural schematic diagram of the sliding propulsion structure of the detection tool in the utility model.

[0021] Figure 3 It is a structural schematic diagram of the flatness detection component in the utility model.

[0022] Figure 4 It is a structural schematic diagram of the base plate positioning structure in the utility model.

[0023] Figure 5 It is a structural schematic diagram of the bottom plate of the utility model.

[0024] In the figure: support frame 1, vertically adjustable sliding mounting structure 2, first slide groove 21, second slide groove 22, first threaded rod 23, first rotating shaft 24, first slider 25, limiting rod 26, second slider 27, U-shaped plate 3, rotationally adjustable mounting structure 4, rotating plate 41, moving plate 42, storage groove 43, base plate 44, connecting plate 45, rotating rod 46, bottom plate 47, bottom threaded hole 471, bolt 472, pointer 473, limiting ring 48, angle groove 49 , flatness detection component 5, flatness detection part 51, block spring 511, block 512, connecting rod 513, top plate 514, roller 515, scale groove 52, detection tool sliding propulsion structure 6, third slide groove 61, second threaded rod 62, second rotating shaft 63, slide plate 64, substrate positioning structure 7, first pull plate 71, bayonet 72, substrate positioning component 8, support plate 81, positioning spring 82, second pull plate 83, clamping plate 84, fixing plate 9. DETAILED DESCRIPTION

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] like Figure 1 , Figure 2 , Figure 4As shown, a workpiece surface flatness detection tool comprises two vertically correspondingly arranged support frames 1, a horizontally arranged U-shaped plate 3 is arranged between the support frames 1 through a vertically adjustable sliding mounting structure 2, the height of the U-shaped plate 3 can be easily adjusted through the vertically adjustable sliding mounting structure 2, a rotating plate 41 located between the two support frames 1 is movably arranged on one side of the U-shaped plate 3 through a rotating adjustable mounting structure 4, a movable plate 42 arranged crosswise with the rotating plate 41 is arranged on the side of the rotating plate 41 away from the U-shaped plate 3, a flatness detection component 5 is arranged on the movable plate 42, and a detection tool sliding propulsion structure 6 which can drive the movable plate 42 to move axially along the rotating plate 41 is arranged between the rotating plate 41 and the movable plate 42, the flatness detection component 5 can facilitate the movable plate 42 to detect the flatness of the workpiece, and the movable plate 42 can be slidably arranged on the rotating plate 41 through the detection tool sliding propulsion structure 6, so as to improve the flatness detection efficiency of the workpiece.

[0027] Specifically, a storage groove 43 is provided at the bottom of one side of the rotating plate 41 close to the movable plate 42, and a substrate 44 is slidably installed inside the storage groove 43. The storage groove 43 can facilitate the movability of the substrate 44 to reduce the occupied space, and a connecting plate 45 that penetrates the storage groove 43 and extends to the side of the rotating plate 41 away from the movable plate 42 is fixedly installed at one end of the substrate 44. The connecting plate 45 is fixedly connected to the substrate 44 to facilitate the adjustment of the length of the substrate 44, and a substrate positioning structure 7 is provided between the connecting plate 45 and the rotating plate 41, which can extend the substrate 44 out of the storage groove 43 and position it relative to the rotating plate 41. The length of the connecting plate 45 can be controlled by the substrate positioning structure 7, thereby controlling the length of the substrate 44, and it is convenient for the substrate 44 to abut against the workpiece, thereby improving the flatness detection effect.

[0028] Among them, the substrate positioning structure 7 includes a first pulling plate 71 arranged at one end of the connecting plate 45 away from the rotating plate 41. The length of the connecting plate 45 can be controlled by the first pulling plate 71, thereby controlling the length of the substrate 44. A number of evenly distributed bayonet holes 72 are sequentially opened on the connecting plate 45, which can facilitate the limiting of connecting plates 45 of different lengths, and a substrate positioning component 8 that can be plugged and positioned with any one of the bayonet holes 72 is provided between the rotating plate 41 and the connecting plate 45. The substrate positioning component 8 can be plugged and limited with the bayonet holes 72 to fix the connecting plates 45 of different lengths, thereby ensuring the stability of the substrate 44.

[0029] like Figure 1 , Figure 2 , Figure 4 , Figure 5As shown, the substrate positioning assembly 8 includes a support plate 81 fixedly arranged on a side of the rotating plate 41 away from the moving plate 42, two positioning springs 82 are fixedly installed on the top of the support plate 81, a second pull plate 83 is fixedly installed on the top of the two positioning springs 82, and a clamping plate 84 is fixedly installed on the bottom of the second pull plate 83, the bottom of the clamping plate 84 passes through the support plate 81 and is slidably connected to the support plate 81, and the clamping plate 84 and any one of the plurality of clamping holes 72 are plugged and positioned with each other, and when it is necessary to adjust the length of the connecting plate 45, the second pull plate 83 is pulled to disengage the clamping plate 84 from the clamping hole 72, and then the first pull plate 71 is pulled to adjust the position of the substrate 44, and when the adjustment of the substrate 44 is completed, the second pull plate 83 is released, and the clamping plate 84 enters the clamping hole 72 with the elastic force of the positioning springs 82 and is fixedly connected to the connecting plate 45.

[0030] Furthermore, the vertically adjustable sliding mounting structure 2 includes a first slide groove 21 vertically arranged on one of the support frames 1 and a second slide groove 22 vertically arranged on the remaining support frame 1, a first threaded rod 23 is rotatably installed inside the second slide groove 22, the top of the first threaded rod 23 passes through the support frame 1 and is fixedly installed with a first rotating shaft 24, and the first threaded rod 23 can be easily controlled to rotate through the first rotating shaft 24, the outer wall of the first threaded rod 23 is threadedly connected with a first slider 25 movably arranged in the second slide groove 22, a limiting rod 26 is fixedly installed inside the first slide groove 21, and a second slider 27 is slidably installed on the outer wall of the limiting rod 26, and the two ends of the U-shaped plate 3 correspond to the first slider 25 and the second slider 27 one by one and are fixedly connected, and the U-shaped plate 3 can be easily adjusted to the height of the U-shaped plate 3 through the first slider 25 and the second slider 27, thereby improving the efficiency of detecting the flatness of the workpiece.

[0031] Among them, the rotatable adjustable mounting structure 4 includes a rotating rod 46 with one end passing through the U-shaped plate 3 and rotatably connected to the U-shaped plate 3, and the other end of the rotating rod 46 is connected to the rotating plate 41. A bottom plate 47 is fixedly installed at one end of the rotating rod 46 away from the rotating plate 41. A bottom threaded hole 471 is penetrated through the outer wall of the bottom plate 47, and a bolt 472 is threadedly connected to the inner wall of the bottom threaded hole 471. The bottom plate 47 is detachably connected to the rotating rod 46 by the bolt 472, and the rotating rod 46 can be driven to rotate synchronously with the rotating plate 41 by rotating the bottom plate 47, which can facilitate the adjustment of the position of the rotating plate 41 and facilitate the rotating plate 41 to detect the inclination of the workpiece.

[0032] Combination Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5As shown, a limit ring 48 is fixedly installed on the outer wall of the rotating rod 46, and the limit ring 48 is in contact with the U-shaped plate 3 on one side thereof, and the limit ring 48 can effectively prevent the rotating rod 46 from shaking. An angle groove 49 is provided at one end of the U-shaped plate 3 close to the bottom plate 47, and a pointer 473 is fixedly installed on the outer wall of the bottom plate 47. When detecting the inclination of the workpiece, the bottom plate 47 adjusts the rotating plate 41 to rotate, and the pointer 473 points to the angle groove 49, and the angle of the angle groove 49 can display the inclination of the workpiece.

[0033] Among them, the detection tool sliding propulsion structure 6 includes a third slide groove 61 extending along the length direction of the rotating plate 41, and a second threaded rod 62 is rotatably arranged in the third slide groove 61. One end of the second threaded rod 62 passes through the rotating plate 41 and is fixedly installed with a second rotating shaft 63. The second threaded rod 62 can be rotated by the second rotating shaft 63. The outer wall of the second threaded rod 62 is threadedly connected with a slide plate 64. One end of the movable plate 42 is fixedly connected to the slide plate 64 and the movable plate 42 is perpendicular to the rotating plate 41. The slide plate 64 can be driven to slide on the second threaded rod 62 through the second rotating shaft 63, and the movable plate 42 can be slid to the edge of the workpiece to detect the flatness of the workpiece.

[0034] Specifically, the flatness detection component 5 includes a plurality of flatness detection members 51 movably arranged on one side of the movable plate 42 and evenly distributed in sequence, and a plurality of scale grooves 52 respectively corresponding to the flatness detection members 51 are evenly distributed in sequence on one side of the movable plate 42. The scale grooves 52 can be used to conveniently observe the detection data of the flatness detection member 51, so that the user can record it conveniently.

[0035] Combination Figure 3 As shown, a fixed plate 9 vertically arranged with the scale groove 52 is fixedly installed on the outer wall of the movable plate 42, and the flatness detection part 51 includes a block spring 511 fixedly installed on the bottom of the fixed plate 9, and the block spring 511 is evenly distributed, which can improve the detection accuracy, and a block 512 is fixedly installed on the bottom of the block spring 511, and a connecting rod 513 is fixedly installed on the top of the block 512, and the top of the connecting rod 513 passes through the fixed plate 9 and is fixedly installed with a top plate 514, and a roller 515 is arranged at the bottom of the block 512, and the roller 515 can facilitate the sliding of the movable plate 42 on the workpiece, and when the roller 515 encounters an uneven part of the workpiece, the roller 515 will rise or fall, and the block spring 511 drives the top plate 514 to rise or fall, and records the scale changes of the top plate 514 on the scale groove 52, so as to detect the flatness of the workpiece.

[0036] The principle of this embodiment is as follows: when detecting the surface inclination of the workpiece, the workpiece is placed between the two support frames 1, the second pull plate 83 is pulled, the positioning spring 82 is stretched, and the clamping plate 84 leaves the clamping port 72, and then the first pull plate 71 is pushed, so that the connecting plate 45 drives the base plate 44 to leave the storage slot 43, and when the base plate 44 is adjusted to a suitable length, the second pull plate 32 is released, and the positioning spring 82 drives the clamping plate 84 to reset itself, so that the clamping plate 84 enters the clamping port 72 and is clamped and connected to the clamping port 72, and the connecting plate 45 is fixed and limited, and then the first rotating shaft 24 is rotated, and the first threaded rod 23 is driven to rotate through the first rotating shaft 24, thereby driving the control U-shaped plate 3 to move, until the bottom of the base plate 44 fits the surface of the workpiece, and the rotating plate 41 can be driven to rotate by rotating the bottom plate 47 and the rotating rod 46, and the pointer 473 is observed. The inclination of the workpiece can be known at the position of the angle groove 49; and when detecting the flatness of the workpiece surface, the second rotating shaft 63 is rotated to make the second threaded rod 62 drive the slide plate 64 and the movable plate 42 to move until the stop block 512 moves to the edge of the workpiece surface, and then the first rotating shaft 24 is rotated, the first threaded rod 23 is rotated, and then the stop block 512 is driven to descend, the stop block 512 contacts the edge of the workpiece surface, and the stop block spring 511 is compressed, the top plate 514 rises, and the scale of the top plate 514 on the scale groove 52 is recorded at this time, and then the second rotating shaft 63 is continued to be rotated, the stop block 512 moves, and when the roller 515 contacts the uneven part of the workpiece surface, the roller 515 will rise or fall. By observing the changes in the scale of the top plate 514 on the scale groove 52 at this time, the position and depth or height of the uneven part of the workpiece surface can be detected.

[0037] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0038] Although this article uses more support frame 1, vertical adjustable sliding installation structure 2, first slide groove 21, second slide groove 22, first threaded rod 23, first rotating shaft 24, first slider 25, limiting rod 26, second slider 27, U-shaped plate 3, rotationally adjustable installation structure 4, rotating plate 41, moving plate 42, storage groove 43, base plate 44, connecting plate 45, rotating rod 46, bottom plate 47, bottom threaded hole 471, bolt 472, pointer 473, limiting ring 48, angle groove 49, flatness detection The terms assembly 5, flatness detection member 51, block spring 511, block 512, connecting rod 513, top plate 514, roller 515, scale groove 52, detection tool sliding propulsion structure 6, third slide groove 61, second threaded rod 62, second rotating shaft 63, slide plate 64, substrate positioning structure 7, first pull plate 71, bayonet 72, substrate positioning assembly 8, support plate 81, positioning spring 82, second pull plate 83, clamping plate 84, fixed plate 9, etc., but the possibility of using other terms is not excluded. The use of these terms is only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A workpiece surface flatness detection tool, comprising two vertically corresponding support frames (1), characterized in that: A horizontally arranged U-shaped plate (3) is arranged between the supporting frames (1) via a vertically adjustable sliding mounting structure (2); a rotating plate (41) located between the two supporting frames (1) is movably arranged on one side of the U-shaped plate (3) via a rotating adjustable mounting structure (4); a moving plate (42) arranged crosswise with the moving plate (41) is arranged on the side of the rotating plate (41) away from the U-shaped plate (3); a flatness detection component (5) is arranged on the moving plate (42); and a detection tool sliding propulsion structure (6) is arranged between the rotating plate (41) and the moving plate (42) and can drive the moving plate (42) to move axially along the rotating plate (41).

2. A workpiece surface flatness detection tool according to claim 1, characterized in that: A storage groove (43) is provided at the bottom of one side of the rotating plate (41) close to the movable plate (42), a base plate (44) is slidably mounted inside the storage groove (43), a connecting plate (45) is fixedly mounted at one end of the base plate (44) and passes through the storage groove (43) and extends to the side of the rotating plate (41) away from the movable plate (42), and a base plate positioning structure (7) is provided between the connecting plate (45) and the rotating plate (41) and can extend the base plate (44) out of the storage groove (43) and position it relative to the rotating plate (41).

3. A workpiece surface flatness detection tool according to claim 2, characterized in that: The substrate positioning structure (7) comprises a first pulling plate (71) arranged at one end of the connecting plate (45) away from the rotating plate (41), a plurality of evenly distributed bayonet holes (72) are sequentially opened on the connecting plate (45), and a substrate positioning component (8) is provided between the rotating plate (41) and the connecting plate (45) and can be plugged and positioned with any one of the bayonet holes (72).

4. A workpiece surface flatness detection tool according to claim 3, characterized in that: The substrate positioning assembly (8) comprises a support plate (81) fixedly arranged on a side of the rotating plate (41) away from the moving plate (42); two positioning springs (82) are fixedly installed on the top of the support plate (81); a second pull plate (83) is fixedly installed on the top of the two positioning springs (82); a clamping plate (84) is fixedly installed on the bottom of the second pull plate (83); the bottom of the clamping plate (84) passes through the support plate (81) and is slidably connected to the support plate (81); and the clamping plate (84) and any one of the plurality of clamping ports (72) are mutually plugged and positioned.

5. A workpiece surface flatness detection tool according to claim 1 or 2 or 3 or 4, characterized in that: The vertically adjustable sliding mounting structure (2) comprises a first slide groove (21) vertically arranged on one of the support frames (1) and a second slide groove (22) vertically arranged on the remaining support frame (1); a first threaded rod (23) is rotatably mounted inside the second slide groove (22); the top of the first threaded rod (23) passes through the support frame (1) and is fixedly mounted with a first rotating shaft (24); the outer wall of the first threaded rod (23) is threadedly connected with a first sliding block (25) movably arranged in the second slide groove (22); a limiting rod (26) is fixedly mounted inside the first slide groove (21); a second sliding block (27) is slidably mounted on the outer wall of the limiting rod (26); and the two ends of the U-shaped plate (3) correspond to the first sliding block (25) and the second sliding block (27) one by one and are fixedly connected.

6. A workpiece surface flatness detection tool according to claim 1, 2, 3 or 4, characterized in that: The rotatable and adjustable mounting structure (4) comprises a rotating rod (46) having one end penetrating through the U-shaped plate (3) and rotatably connected to the U-shaped plate (3); the other end of the rotating rod (46) is connected to the rotating plate (41); the end of the rotating rod (46) away from the rotating plate (41) is fixedly mounted with a bottom plate (47); a bottom threaded hole (471) is formed through the outer wall of the bottom threaded hole (471); a bolt (472) is threadedly connected to the inner wall of the bottom threaded hole (471).

7. A workpiece surface flatness detection tool according to claim 6, characterized in that: A limit ring (48) is fixedly mounted on the outer wall of the rotating rod (46); the limit ring (48) is in contact with the U-shaped plate (3) at one side thereof; an angle groove (49) is formed at one end of the U-shaped plate (3) that is close to the bottom plate (47); and a pointer (473) is fixedly mounted on the outer wall of the bottom plate (47).

8. A workpiece surface flatness detection tool according to claim 1, 2, 3 or 4, characterized in that: The detection tool sliding propulsion structure (6) comprises a third slide groove (61) extending along the length direction of the rotating plate (41), a second threaded rod (62) is rotatably arranged in the third slide groove (61), one end of the second threaded rod (62) passes through the rotating plate (41) and is fixedly installed with a second rotating shaft (63), the outer wall of the second threaded rod (62) is threadedly connected with a slide plate (64), one end of the movable plate (42) is fixedly connected to the slide plate (64) and the movable plate (42) is perpendicular to the rotating plate (41).

9. A workpiece surface flatness detection tool according to claim 1 or 2 or 3 or 4, characterized in that: The flatness detection assembly (5) comprises a plurality of flatness detection members (51) movably arranged on one side of the movable plate (42) and arranged in a sequence and evenly distributed, and a plurality of scale grooves (52) respectively arranged in a one-to-one correspondence with the flatness detection members (51) are evenly distributed on one side of the movable plate (42).

10. A workpiece surface flatness detection tool according to claim 9, characterized in that: The outer wall of the movable plate (42) is fixedly mounted with a fixed plate (9) vertically arranged with the scale groove (52); the flatness detection component (51) comprises a stop spring (511) fixedly mounted at the bottom of the fixed plate (9), and the stop spring (511) is evenly distributed; a stop (512) is fixedly mounted at the bottom of the stop spring (511); a connecting rod (513) is fixedly mounted at the top of the stop (512); the top of the connecting rod (513) passes through the fixed plate (9) and is fixedly mounted with a top plate (514); a roller (515) is arranged at the bottom of the stop (512).

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