A spring flatness detection device

Abstract

The application relates to the technical field of spring detection devices, and discloses a spring flatness detection device, which comprises a workbench, a base fixedly connected to the top of the workbench, a detection shell fixedly connected to the top of the workbench, an optical detector mounted on the inner wall of the detection shell, and a detection piece arranged on the top of the workbench; a clamping mechanism is arranged on the inner wall of the workbench, and a limiting mechanism is arranged on the top of the workbench; before detection, the detection piece is clamped by moving the clamping plate one through the shaking of a crank handle, so that the deviation of the detection piece is avoided, the stability of the equipment is further improved, the detection effect of the equipment is better, and the labor cost is reduced; while clamping, the sliding block one drives the clamping plate two to clamp the detection piece from the inside, so that the deformation of the spring caused by external clamping is prevented, the detection stability is better, and the detection speed of the equipment is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of spring detection devices, in particular to a spring straightness detection device. Background Art

[0002] As an important mechanical part, springs are widely used in many fields such as automobiles, aerospace, mechanical manufacturing, electronic equipment, etc. Manual testing is inefficient and inaccurate. This device can perform surface testing on large springs, making the test faster and the test results more accurate.

[0003] Patent application number 202323042456.8 relates to a spring straightness detection device, which particularly includes a base plate and a laser assembly. A support plate is fixedly connected to the right side of the top of the base plate, and a movable adjustment frame is fixedly connected to the top of the support plate. A first limit block is fixedly connected to the middle of the left side of the top of the movable adjustment frame, and a second limit block is fixedly connected to the middle of the right side of the top of the movable adjustment frame. A drive motor is installed on the right end of the second limit block. The drive end of the drive motor passes through the left side of the second limit block and is fixedly connected to a threaded rod. The middle part of the outer wall of the threaded rod is threadedly connected to a connecting block. This patent, by providing a slide and a sliding frame, allows the tester to accurately move the laser emission axis A and the laser emission axis B to the specified position on the top of the base plate, thereby more accurately detecting the bottom spring body, accurately finding the position of the fingertip, and improving the detection accuracy. However, the device is not internally reinforced when clamping the spring, which makes the spring easily deformed when clamped, resulting in inaccurate detection of the spring. Therefore, a spring straightness detection device is proposed to solve the above-mentioned problems. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a spring straightness detection device in view of the deficiencies in the above-mentioned prior art.

[0005] 7. The swiftly and minutely adjusting device for a wood-planer working table as claimed in claim 1, wherein said linking rod and said adjusting base are pivotally connected to each other with a bolt, and said bolt has a round shank to contact with said linking rod. said linking rod is pivotally connected to said linking rod. said linking rod is pivotally connected to said linking rod. The top of the trapezoidal block and the trapezoidal block are both in contact with the inner wall of the workbench, and the bottom of the trapezoidal block and the movable plate are both in contact with the top of the workbench, and the trapezoidal block and the movable plate are both in contact with the inner wall of the workbench.

[0006] Preferably, the limit mechanism includes an L-shaped rack, a gear, a rotating plate, and a dustproof cover, the L-shaped rack is fixedly connected to both sides of the sliding block, the gear is rotatably connected to the inner wall of the workbench, the rotating plate is fixedly connected to the top of the gear, and the dustproof cover is fixedly connected to the top of the rotating plate; the limit mechanism also includes a guide plate, a pulley, a sliding rod, a limit block, and a limit baffle, the guide plate is fixedly connected to the top of the workbench, the limit block is fixedly connected to both sides of the splint one, the sliding rod is slidably connected to the inner wall of the limit block, the pulley is installed on the side of the sliding rod away from the splint one, and the limit baffle is rotatably connected to the outer surface of the splint one, and while clamping the detection piece, the dustproof cover is driven by the movement of the sliding block to protect the optical detector from dust. , avoiding foreign objects from affecting the detection effect, improving the efficiency of flatness detection of the detection part, and also extending the service life of the equipment, saving the cost of manual cleaning, and while clamping the detection part, the clamping plate drives the limit baffle to rotate to limit the spring, preventing deformation or jumping when the detection part is clamped, further ensuring that the detection part is subjected to uniform force, and improving the stability of the overall detection; the circumferential surface of the pulley contacts the inner wall of the guide plate, the side of the sliding rod away from the pulley contacts the clamping plate, the top of the sliding rod is hinged to the limit baffle, the top of the limit baffle contacts the top of the detection part, the L-shaped rack meshes with the circumferential surface of the gear, the top of the L-shaped rack contacts the inner wall of the workbench, and the dustproof shell contacts the inner wall of the detection shell.

[0007] Preferably, the auxiliary mechanism includes a pull rod, a light-shielding shell, a positioning block, a rotating card plate, a limit rod, and a card block. The positioning block is fixedly connected to the top of the workbench, the light-shielding shell is rotatably connected to the inner wall of the positioning block through a torsion spring, the pull rod is hinged to the inner wall of the light-shielding shell, the rotating card plate is rotatably connected to the inner wall of the front light-shielding shell through a torsion spring, the limit rod is fixedly connected to the inner wall of the front light-shielding shell, and the card block is fixedly connected to the outer surface of the rear light-shielding shell. While the detection part is optically detected, the sliding rod drives the light-shielding shell to close to block external light, thereby avoiding external light from affecting the experiment. The influence of , makes it possible to better detect the outer surface roughness of the test piece, makes the test results more accurate, and also improves the overall efficiency of the equipment. While blocking external light, the rear side of the light-shielding shell drives the card block and the rotating card plate to self-lock. After the test is completed, the rotating card plate can be manually opened to release the limit, avoiding the light-shielding shell from loosening and affecting the test results, thereby improving the overall detection efficiency of the equipment; the end of the pull rod away from the light-shielding shell is hinged to the outer surface of the sliding rod, the circumferential surface of the limit rod is in contact with the bottom of the rotating card plate, and the bottom of the rotating card plate is in contact with the top of the card block.

[0008] The present invention adopts the above technical solution, which can bring the following beneficial effects:

[0009] 1. This spring straightness detection device operates in coordination among a crank handle, a two-way threaded rod, a sliding block, a clamping plate 1, a trapezoidal block 1, a trapezoidal block 2, a connecting block, a movable plate, an elastic telescopic rod, and a clamping plate 2. Before detection, the handle is shaken to drive the clamping plate 1 to move and clamp the detection piece to avoid displacement of the detection piece, thereby further improving the stability of the equipment, making the detection effect of the equipment better and reducing labor costs. While clamping, the sliding block 1 drives the clamping plate 2 to clamp the detection piece internally to prevent deformation of the spring caused by external clamping, thereby improving detection stability and improving the detection speed of the equipment.

[0010] 2. This spring straightness detection device, through the coordinated operation among the L-shaped rack, gear, rotating plate, dust cover, guide plate, pulley, sliding rod, limit block, and limit baffle, clamps the detection part while driving the dust cover to protect the optical detector from dust through the movement of the sliding block, preventing foreign objects from affecting the detection effect, improving the efficiency of the straightness detection of the detection part, and also extending the service life of the equipment, saving the cost of manual cleaning. While clamping the detection part, the clamping plate drives the limit baffle to rotate to limit the spring, preventing deformation or jumping when the detection part is clamped, further ensuring that the detection part is evenly stressed and improving the stability of the overall detection.

[0011] 3. This spring straightness detection device, through the coordinated operation between the pull rod, the light-shielding shell, the positioning block, the rotating card plate, the limit rod and the card block, while performing optical detection on the detection part, the sliding rod drives the light-shielding shell to close to block the external light, avoiding the influence of external light on the experiment, so that the outer surface roughness of the detection part can be better detected, the test results can be made more accurate, and the overall efficiency of the equipment is improved. While blocking the external light, the light-shielding shell on the rear side drives the card block and the rotating card plate to self-lock. After the detection is completed, the limit can be released by manually opening the rotating card plate, avoiding the light-shielding shell from loosening and affecting the detection results, thereby improving the overall detection efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0013] Figure 2 This is a cross-sectional view of the workbench structure of the present invention;

[0014] Figure 3 This is a structural schematic diagram of a splint according to the present invention;

[0015] Figure 4 This is a schematic diagram of the structure of the second splint of the present invention;

[0016] Figure 5 This is a schematic diagram of the limit baffle structure of the present invention;

[0017] Figure 6 For the present invention Figure 5 A magnified view of the structure at center A;

[0018] Figure 7 This is a schematic diagram of the light-shielding shell structure of the present invention;

[0019] Figure 8 This is a schematic diagram of the card block structure of the present invention;

[0020] In the figure: 1. workbench; 2. base; 3. clamping mechanism; 31. crank handle; 32. two-way threaded rod; 33. sliding block; 34. splint 1; 35. trapezoidal block 1; 36. trapezoidal block 2; 37. connecting block; 38. movable plate; 39. elastic telescopic rod; 310. splint 2; 4. limiting mechanism; 41. L-shaped rack; 42. gear; 43. rotating plate; 44. dustproof shell; 45. guide plate; 46. pulley; 47. sliding rod; 48. limiting block; 49. limiting baffle; 5. auxiliary mechanism; 51. pull rod; 52. light-shielding shell; 53. positioning block; 54. rotating clamping plate; 55. limiting rod; 56. clamping block; 6. detection shell; 7. optical detector; 8. detection part. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figures 1-8, one embodiment of the present invention is: a spring straightness detection device, including a workbench 1, the top of the workbench 1 is fixedly connected to a base 2, the top of the workbench 1 is fixedly connected to a detection shell 6, the inner wall of the detection shell 6 is installed with an optical detector 7, and the top of the workbench 1 is provided with a detection member 8; the inner wall of the workbench 1 is provided with a clamping mechanism 3, the top of the workbench 1 is provided with a limit mechanism 4, and the top of the workbench 1 is provided with an auxiliary mechanism 5; the clamping mechanism 3 includes a crank 31, a bidirectional threaded rod 32, a sliding block 33, and a clamping plate 34, the bidirectional threaded rod 32 is rotatably connected to the inner wall of the workbench 1, the crank 31 is fixedly connected to the rear end of the bidirectional threaded rod 32, the sliding block 33 is threadedly connected to the circumferential surface of the bidirectional threaded rod 32, and the clamping plate 34 is provided. The two-way threaded rod 32 can be rotated by the staff through the shaking handle 31 or the motor, and the two-way threaded rod 32 can be rotated through the thread groove on the circumferential surface to drive the sliding block 33 to move. The sliding block 33 drives the clamping plate 1 34 to move and clamp the detection piece 8, so as to avoid the deviation of the detection piece 8 during the detection of the detection piece 8, resulting in inaccurate detection results, further improving the stability of the equipment, making the detection effect of the equipment better, and reducing labor costs. The clamping mechanism 3 also includes a trapezoidal block 1 35, a trapezoidal block 2 36, a connecting block 37, a movable plate 38, an elastic telescopic rod 39, and a clamping plate 2 310. The trapezoidal block 1 35 is fixedly connected to the sliding block 33. The outer surface of the workbench 1 is connected to the inner wall of the workbench 1 through a spring sliding connection, the trapezoidal block 2 36 is fixedly connected to the bottom of the connecting block 37, the movable plate 38 is fixedly connected to the top of the connecting block 37, the elastic telescopic rod 39 is fixedly connected to the outer surface of the movable plate 38, and the second splint 310 is fixedly connected to the end of the elastic telescopic rod 39 away from the movable plate 38. While clamping the detection piece 8, the sliding block 1 33 moves to drive the trapezoidal block 1 35 to move, the trapezoidal block 1 35 drives the trapezoidal block 2 36 to move through the inclined surface, the trapezoidal block 2 36 moves to drive the connecting block 37 to move, the connecting block 37 drives the movable plate 38 to move, the movable plate 38 drives the elastic telescopic rod 39 to move, and the elastic telescopic rod 39 drives the second splint 310 to move to perform detection on the detection piece 8. Internal clamping, when the test is completed, the connecting block 37 drives the second clamping plate 310 to reset through the spring, which is convenient for next use and prevents unilateral external clamping from causing deformation of the spring, so that the detection piece 8 is more stable during detection, and the detection effect of the equipment is better, which improves the overall quality of the equipment and the detection speed of the equipment; the bottom of the clamping plate 1 34 contacts the top of the workbench 1, the clamping plate 1 34 contacts the outer surface of the detection piece 8, the inclined surface of the trapezoidal block 1 35 contacts the inclined surface of the trapezoidal block 2 36, the top of the trapezoidal block 1 35 and the trapezoidal block 2 36 are both in contact with the inner wall of the workbench 1, the bottom of the clamping plate 2 310 and the movable plate 38 are both in contact with the top of the workbench 1, and the clamping plate 2 310 contacts the inner wall of the detection piece 8.

[0023] The limiting mechanism 4 includes an L-shaped rack 41, a gear 42, a rotating plate 43, and a dust cover 44. The L-shaped rack 41 is fixedly connected to both sides of the sliding block 33, the gear 42 is rotatably connected to the inner wall of the workbench 1, the rotating plate 43 is fixedly connected to the top of the gear 42, and the dust cover 44 is fixedly connected to the top of the rotating plate 43; while clamping the detection member 8, the staff starts the optical detector 7 through the main console to start the detection, and at the same time, the sliding block 33 moves to drive the L-shaped rack 41 to move, and the L-shaped rack 41 engages with the circumferential surface of the gear 42 through the teeth on the outer surface to drive the gear 42 to rotate, and the rotation of the gear 42 drives the rotating plate 43 to rotate, and the rotating plate 43 rotates. The movable plate 43 drives the dust cover 44 to open so that the optical detector 7 in the detection shell 6 can detect the outer surface of the spring. When the detection is completed, the gear 42 will drive the rotating plate 43 to reverse, and the rotating plate 43 reverses to close the dust cover 44 to protect the optical detector 7 from dust, so as to avoid foreign objects from damaging the optical detector 7 when not in use or dust from adhering to the outer surface of the optical detector 7 and affecting the detection effect, so as to make the detection effect better, improve the efficiency of the flatness detection of the detection part 8, and also make the service life of the equipment longer, saving the cost of manual cleaning. The limit mechanism 4 also includes a guide plate 45, a pulley 46, a sliding rod 47, a limit block 48, a limit The baffle 49 and the guide plate 45 are fixedly connected to the top of the workbench 1, the limit blocks 48 are fixedly connected to both sides of the splint 34, the sliding rod 47 is slidably connected to the inner wall of the limit block 48, and the pulley 46 is installed on the side of the sliding rod 47 away from the splint 34. The limit baffle 49 is rotatably connected to the outer surface of the splint 34. While clamping the detection part 8, the splint 34 moves to drive the sliding rod 47 to move, and the sliding rod 47 drives the pulley 46 to move. The pulley 46 contacts the inner wall of the guide plate 45 through the circumferential surface and drives the pulley 46 to move up and down. The pulley 46 drives the sliding rod 47 to move up and down, and the sliding rod 47 drives the limit block 48 through the hinge point. The baffle 49 rotates to limit the spring to prevent deformation or jumping when the detection part 8 is clamped, further ensuring that the detection part 8 is evenly stressed, thereby improving the accuracy of the test, improving the working efficiency of the equipment, and improving the stability of the overall detection; the circumferential surface of the pulley 46 contacts the inner wall of the guide plate 45, and the side of the sliding rod 47 away from the pulley 46 contacts the clamp 34. The top of the sliding rod 47 is hinged to the limit baffle 49, and the top of the limit baffle 49 contacts the top of the detection part 8. The L-shaped rack 41 is engaged with the circumferential surface of the gear 42, the top of the L-shaped rack 41 contacts the inner wall of the workbench 1, and the dustproof cover 44 contacts the inner wall of the detection shell 6.

[0024] Working principle: When it is necessary to inspect a larger spring in a car or ship, the inspection piece 8 can be transported to the workbench 1 by machinery or staff, and then the optical detector 7 is started through the main console to detect the roughness of the outer surface of the inspection piece 8. The shadow area is illuminated by the contact between the outer surface and the light, allowing the detector to judge the quality of the inspection piece 8. Before inspecting the inspection piece 8, the staff can shake the handle 31 or the motor to drive the bidirectional threaded rod 32 to rotate. The rotation of the bidirectional threaded rod 32 drives the sliding block 33 to move through the thread groove on the circumferential surface. The sliding block 33 drives the clamping plate 34 to move to clamp the inspection piece 8, avoiding the deviation of the inspection piece 8 during the inspection, resulting in inaccurate inspection results, further improving the stability of the equipment. The detection effect of the equipment is better, and the labor cost is reduced. While clamping the detection piece 8, the sliding block 1 33 moves to drive the trapezoidal block 1 35 to move, the trapezoidal block 1 35 drives the trapezoidal block 2 36 to move through the inclined surface, the trapezoidal block 2 36 moves to drive the connecting block 37 to move, the connecting block 37 drives the moving plate 38 to move, the moving plate 38 drives the elastic telescopic rod 39 to move, and the elastic telescopic rod 39 drives the splint 2 310 to move to clamp the detection piece 8 internally. When the test is completed, the connecting block 37 drives the splint 2 310 to reset through the spring to facilitate the next use, and prevent unilateral clamping of the outside from causing deformation of the spring, so that the detection piece 8 is more stable during detection, the detection effect of the equipment is better, the overall quality of the equipment is improved, and the detection speed of the equipment is improved.

[0025] While clamping the detection part 8, the staff starts the optical detector 7 through the main console to start the detection. At the same time, the sliding block 33 moves to drive the L-shaped rack 41 to move. The L-shaped rack 41 engages with the circumferential surface of the gear 42 through the teeth on the outer surface to drive the gear 42 to rotate. The rotation of the gear 42 drives the rotating plate 43 to rotate. The rotating plate 43 drives the dust cover 44 to open so that the optical detector 7 in the detection housing 6 can detect the outer surface of the spring. When the detection is completed, the gear 42 will drive the rotating plate 43 to reverse. The reversal of the rotating plate 43 will close the dust cover 44 to protect the optical detector 7 from dust, so as to prevent foreign objects from damaging the optical detector 7 when not in use or dust from adhering to the outer surface of the optical detector 7 and affecting the detection effect. , which makes the detection effect better, improves the efficiency of flatness detection of the detection piece 8, and also makes the service life of the equipment longer, saving the cost of manual cleaning. While clamping the detection piece 8, the movement of the clamping plate 34 drives the sliding rod 47 to move, and the sliding rod 47 drives the pulley 46 to move up and down through the circumferential surface of the clamping plate 45. The pulley 46 contacts the inner wall of the guide plate 45 and drives the pulley 46 to move up and down. The pulley 46 drives the sliding rod 47 to move up and down, and the sliding rod 47 drives the limit baffle 49 to rotate through the hinge point to limit the spring, preventing deformation or jumping when the detection piece 8 is clamped, further ensuring that the detection piece 8 is evenly stressed, thereby improving the accuracy of the test, making the working efficiency of the equipment better, and improving the stability of the overall detection.

[0026] See also Figures 1-8The pull rod 51 is hinged to the inner wall of the light shielding shell 52. When the optical detection of the detection part 8 is carried out, the movement of the splint 34 drives the sliding rod 47 to move. The sliding rod 47 moves through the hinge point to pull the pull rod 51 to move. At the same time, the pulley 46 drives the sliding rod 47 to move downward. The downward movement of the sliding rod 47 further enhances the pulling distance of the pull rod 51. The pull rod 51 moves through the hinge point to drive the front and rear light shielding shells 52 to rotate and close to each other to block external light, thereby avoiding the influence of external light on the experiment, so that the outer surface roughness of the detection part 8 can be better detected, the test results can be more accurate, and the safety of the experiment can be guaranteed. , which prolongs the service life of the device and improves the overall efficiency of the device. The rotating card plate 54 is rotatably connected to the inner wall of the front light-shielding shell 52 through a torsion spring, the limiting rod 55 is fixedly connected to the inner wall of the front light-shielding shell 52, and the card block 56 is fixedly connected to the outer surface of the rear light-shielding shell 52. While blocking external light, the rear light-shielding shell 52 drives the card block 56 to move, and the front light-shielding shell 52 drives the rotating card plate 54 to move. When the card block 56 contacts the rotating card plate 54, Self-locking is achieved. After the detection is completed, the limit can be released by manually opening the rotating card plate 54, so that the gap of the light-shielding shell 52 is smaller, the overall light-shielding effect of the light-shielding shell 52 is improved, and the light-shielding shell 52 is avoided from loosening, thereby affecting the detection results, and the overall detection efficiency of the equipment is improved; the end of the pull rod 51 away from the light-shielding shell 52 is hinged to the outer surface of the sliding rod 47, the circumferential surface of the limit rod 55 is in contact with the bottom of the rotating card plate 54, and the bottom of the rotating card plate 54 is in contact with the top of the block 56.

[0027] Working principle: While the detection part 8 is being optically detected, the movement of the splint 34 drives the sliding rod 47 to move, and the sliding rod 47 moves through the hinge point to pull the pull rod 51 to move. At the same time, the pulley 46 drives the sliding rod 47 to move downward. The downward movement of the sliding rod 47 further increases the pulling distance of the pull rod 51. The pull rod 51 moves through the hinge point to drive the front and rear light-shielding shells 52 to rotate close to each other and block external light, avoiding the influence of external light on the experiment, so that the outer surface roughness of the detection part 8 can be better detected, and the test results can be made more accurate. It also ensures the safety of the experiment, extends the service life of the equipment, and improves the overall efficiency of the equipment. While blocking external light, the rear shading shell 52 drives the block 56 to move, and the front shading shell 52 drives the rotating card plate 54 to move. When the block 56 contacts the rotating card plate 54, self-locking will be achieved. After the test is completed, the rotating card plate 54 can be manually opened to release the limit, making the gap of the shading shell 52 smaller, improving the overall shading effect of the shading shell 52, avoiding the loosening of the shading shell 52 and affecting the test results, and improving the overall detection efficiency of the equipment.

[0028] The present invention provides a spring straightness detection device. There are numerous methods and approaches for implementing this technical solution. The above is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also within the scope of protection of the present invention. Any components not specified in this embodiment may be implemented using existing technologies.

Claims

1. A spring straightness detection device, comprising a workbench (1), characterized in that: The top of the workbench (1) is fixedly connected to a base (2), the top of the workbench (1) is fixedly connected to a detection housing (6), an optical detector (7) is installed on the inner wall of the detection housing (6), and a detection member (8) is provided on the top of the workbench (1); The inner wall of the workbench (1) is provided with a clamping mechanism (3), the top of the workbench (1) is provided with a limiting mechanism (4), and the top of the workbench (1) is provided with an auxiliary mechanism (5); The clamping mechanism (3) includes a crank (31), a bidirectional threaded rod (32), a sliding block (33), and a clamping plate (34), wherein the bidirectional threaded rod (32) is rotatably connected to the inner wall of the workbench (1), the crank (31) is fixedly connected to the rear end of the bidirectional threaded rod (32), the sliding block (33) is threadedly connected to the circumferential surface of the bidirectional threaded rod (32), and the clamping plate (34) is fixedly connected to the top of the sliding block (33); The clamping mechanism (3) further comprises a trapezoidal block 1 (35), a trapezoidal block 2 (36), a connecting block (37), a movable plate (38), an elastic telescopic rod (39), and a clamping plate 2 (310), wherein the trapezoidal block 1 (35) is fixedly connected to the outer surface of the sliding block (33), the connecting block (37) is slidably connected to the inner wall of the workbench (1) via a spring, the trapezoidal block 2 (36) is fixedly connected to the bottom of the connecting block (37), the movable plate (38) is fixedly connected to the top of the connecting block (37), the elastic telescopic rod (39) is fixedly connected to the outer surface of the movable plate (38), and the clamping plate 2 (310) is fixedly connected to the end of the elastic telescopic rod (39) away from the movable plate (38); The bottom of the clamping plate 1 (34) contacts the top of the workbench (1), the clamping plate 1 (34) contacts the outer surface of the detection member (8), the inclined surface of the trapezoidal block 1 (35) contacts the inclined surface of the trapezoidal block 2 (36), the tops of the trapezoidal block 1 (35) and the trapezoidal block 2 (36) both contact the inner wall of the workbench (1), the bottoms of the clamping plate 2 (310) and the movable plate (38) both contact the top of the workbench (1), and the clamping plate 2 (310) contacts the inner wall of the detection member (8).

2. A spring straightness detection device according to claim 1, characterized in that: The limiting mechanism (4) comprises an L-shaped rack (41), a gear (42), a rotating plate (43), and a dust cover (44); the L-shaped rack (41) is fixedly connected to both sides of the sliding block (33); the gear (42) is rotatably connected to the inner wall of the workbench (1); the rotating plate (43) is fixedly connected to the top of the gear (42); and the dust cover (44) is fixedly connected to the top of the rotating plate (43).

3. A spring straightness detection device according to claim 2, characterized in that: The limiting mechanism (4) also includes a guide plate (45), a pulley (46), a sliding rod (47), a limiting block (48), and a limiting baffle (49), wherein the guide plate (45) is fixedly connected to the top of the workbench (1), the limiting block (48) is fixedly connected to both sides of the clamping plate (34), the sliding rod (47) is slidably connected to the inner wall of the limiting block (48), the pulley (46) is installed on the side of the sliding rod (47) away from the clamping plate (34), and the limiting baffle (49) is rotatably connected to the outer surface of the clamping plate (34).

4. A spring straightness detection device according to claim 3, characterized in that: The circumferential surface of the pulley (46) contacts the inner wall of the guide plate (45), the side of the sliding rod (47) away from the pulley (46) contacts the clamping plate (34), the top of the sliding rod (47) is hinged to the limit baffle (49), the top of the limit baffle (49) contacts the top of the detection member (8), the L-shaped rack (41) is engaged with the circumferential surface of the gear (42), the top of the L-shaped rack (41) contacts the inner wall of the workbench (1), and the dust cover (44) contacts the inner wall of the detection housing (6).

5. A spring straightness detection device according to claim 4, characterized in that: The auxiliary mechanism (5) includes a pull rod (51), a light-shielding shell (52), a positioning block (53), a rotating card plate (54), a limiting rod (55), and a card block (56); the positioning block (53) is fixedly connected to the top of the workbench (1); the light-shielding shell (52) is rotationally connected to the inner wall of the positioning block (53) through a torsion spring; the pull rod (51) is hinged to the inner wall of the light-shielding shell (52); the rotating card plate (54) is rotationally connected to the inner wall of the front light-shielding shell (52) through a torsion spring; the limiting rod (55) is fixedly connected to the inner wall of the front light-shielding shell (52); and the card block (56) is fixedly connected to the outer surface of the rear light-shielding shell (52).

6. A spring straightness detection device according to claim 5, characterized in that: One end of the pull rod (51) away from the light shielding shell (52) is hinged to the outer surface of the sliding rod (47), the circumferential surface of the limiting rod (55) contacts the bottom of the rotating clamping plate (54), and the bottom of the rotating clamping plate (54) contacts the top of the clamping block (56).

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