Tool for detecting concentricity and perpendicularity of forklift wheel connecting rod

By designing an adjustable clamping mechanism and measuring instrument assembly for forklift wheel connecting rod detection tooling, the problem of limited application scope of existing devices is solved, and the concentricity and verticality detection of different workpieces is realized, which reduces production costs.

CN223154188UActive Publication Date: 2025-07-25ZHEJIANG CHAOYANG MACHINERY CO LTD
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Patent Information

Application Number
CN202422501992.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-15
Publication Date
2025-07-25
Estimated Expiration
2034-10-15

AI Technical Summary

Technical Problem

The existing detection devices can only detect the concentricity and perpendicularity of the forklift wheel connecting rods, and cannot be applied to other workpieces, resulting in increased production costs.

Method used

A concentric verticality detection tool for forklift wheel connecting rods is designed, using an adjustable clamping mechanism and measuring instrument assembly, which can adapt to the concentricity and verticality detection of different workpieces. By rotating the turntable and bidirectional screws to adjust the clamping position, the clamping of workpieces of different sizes and shapes is achieved.

Benefits of technology

The scope of application of the detection device has been expanded, the cost of inspection for different workpieces has been reduced, and the flexibility and efficiency of inspection have been improved.

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Abstract

The utility model discloses a concentricity and verticality detection tool for a forklift wheel connecting rod, which comprises a workbench and two mounting racks symmetrically mounted on the workbench, a clamping mechanism is rotatably arranged on each of the two mounting racks, and each clamping mechanism comprises a mounting plate rotatably mounted on the corresponding mounting rack. A first moving groove is formed in the side wall of the side, away from the mounting frame, of the mounting plate, a two-way lead screw is rotationally arranged in the first moving groove, the two ends of the two-way lead screw are each in threaded connection with a moving block, and a first screw hole is formed in each moving block; a two-way screw rod is arranged on the mounting plate, a rotary disc connected with the two-way screw rod is rotationally mounted on the side wall of the mounting plate, two clamping blocks are symmetrically arranged on the mounting plate, a connecting hole is formed in each clamping block, a screw rod is arranged in each connecting hole, and the screw rods penetrate through the connecting holes to be in threaded connection with the first screw holes. The concentricity and perpendicularity of different workpieces can be detected.
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Description

Technical Field

[0001] The utility model relates to a detection device, in particular to a concentricity and perpendicularity detection tool for the connecting rod of a forklift wheel. Background Art

[0002] In order to ensure the installation safety and stability of the connecting rod of the forklift wheel during use, the concentricity and perpendicularity of the connecting rod of the forklift wheel are detected during the processing.

[0003] The detection devices for concentricity and perpendicularity are general devices. If a special detection device is made for detecting the concentricity and perpendicularity of the connecting rod of the forklift wheel, then this detection device can only detect the concentricity and perpendicularity of the connecting rod of the forklift wheel. In this case, this detection device cannot detect the concentricity and perpendicularity of other workpieces. Thus, the application range of this detection device will be limited. If it is necessary to detect other workpieces, a new detection device needs to be purchased additionally. In this way, the production cost will be increased. Therefore, it is necessary to provide a detection tool that can detect the concentricity and perpendicularity of different workpieces. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a concentricity and perpendicularity detection tool for the connecting rod of a forklift wheel that can detect the concentricity and perpendicularity of different workpieces.

[0005] The technical solution adopted by the utility model to solve the above technical problem is as follows: A concentricity and perpendicularity detection tool for the connecting rod of a forklift wheel, including a workbench, two mounting brackets are symmetrically arranged on the workbench, and a clamping mechanism is rotatably arranged on each adjacent side wall of the two mounting brackets. A telescopic rod slidably connected to the workbench is arranged on the workbench on one side of the mounting bracket. A meter frame assembly for installing a concentricity and perpendicularity measuring instrument is respectively arranged on the telescopic rod and the mounting bracket. Each clamping mechanism includes a mounting plate, the mounting plate is rotatably mounted on the mounting bracket, and a first moving groove is formed on the side wall of the mounting plate away from the mounting bracket; a bidirectional lead screw, the bidirectional lead screw is rotatably mounted in the first moving groove, two moving blocks are respectively arranged at both ends of the bidirectional lead screw, the moving blocks are screwed to the bidirectional lead screw, and a first screw hole is formed on the moving block; a turntable, the turntable is rotatably mounted on the side wall of the mounting plate, and the turntable is connected to one end of the bidirectional lead screw; two clamping blocks are provided, the clamping blocks are both mounted on the mounting plate, a connecting hole is respectively formed on the clamping blocks, and a screw rod is arranged in each connecting hole, and the screw rods respectively pass through the connecting holes and are screwed to the first screw hole.

[0006] A further preferred solution of the present utility model is as follows: The watch frame assembly includes a mounting base, a through groove is provided on the mounting base, and a second moving groove is formed in the mounting base below the through groove; a moving plate, the moving plate is slidably mounted in the second moving groove, a plurality of first limiting grooves are formed on the upper surface of the moving plate, and a mounting hole for mounting an instrument for measuring concentricity and perpendicularity is formed at one end of the moving plate; a limiting rod, the limiting rod is mounted in the through groove, the top of the limiting rod passes through the top of the through groove and is slidably connected to the mounting base, a limiting block is provided at the bottom of the limiting rod, the limiting block penetrates into the second moving groove and is inserted into the first limiting groove on the moving plate, a first spring is sleeved on the limiting rod, and two ends of the first spring respectively abut against the top of the through groove and the top of the limiting block.

[0007] A further preferred solution of the present utility model is as follows: A sliding groove for slidably connecting the mounting frame is formed on the workbench, and one of the mounting frames in the mounting frame is slidably connected to the sliding groove.

[0008] A further preferred solution of the present utility model is as follows: A driving device for controlling the rotation of the clamping mechanism is provided on the mounting frame.

[0009] A further preferred solution of the present utility model is as follows: The telescopic rod includes a cylinder body, a rod body is slidably arranged in the cylinder body, and a plurality of limiting holes are circumferentially formed on the cylinder wall of the cylinder body from top to bottom; an adjusting seat, the adjusting seat is mounted at the bottom of the rod body in the cylinder body, a plurality of mounting grooves are circumferentially formed on the side wall of the adjusting seat, a movable rod is slidably arranged in each mounting groove, a second spring is arranged in each mounting groove, one end of the second spring abuts against the mounting groove and the other end abuts against the movable rod, and the movable rod is inserted into the limiting hole.

[0010] A further preferred solution of the present utility model is as follows: A fixing component is arranged in the mounting hole, the fixing component includes an adjusting hole, the adjusting hole is formed on the side wall of the moving plate close to the mounting hole, an adjusting bolt is arranged in the adjusting hole, the adjusting hole communicates with the mounting hole, and a connecting rod is rotatably arranged at one end of the adjusting bolt close to the mounting hole; a clamping plate, there are no less than two clamping plates, the clamping plates are all mounted in the mounting hole, one of the two clamping plates is fixedly connected to the mounting hole and the other clamping plate is connected to the connecting rod.

[0011] A further preferred solution of the present utility model is as follows: A guiding groove is formed on the side wall of the moving plate close to the second moving groove, a guiding block matching with the guiding groove is arranged on the groove wall of the second moving groove, and the guiding block is slidably connected to the guiding groove.

[0012] A further preferred solution of the present utility model is that the bottoms of the limiting blocks are all chamfered, and the size of the bottom of the limiting block is smaller than that of the top of the limiting block.

[0013] A further preferred solution of the present utility model is that the clamping plates are all arc-shaped, the clamping plates are attached to the inner wall of the mounting hole, and protective layers are arranged on the inner walls of the clamping plates.

[0014] Compared with the prior art, the advantages of the present utility model are as follows: Rotating the turntable causes the bidirectional lead screw connected to the turntable to start rotating. In this way, the moving blocks screwed to the bidirectional lead screw can move closer to or away from each other on the mounting plate according to the different rotation directions of the turntable. In this way, the clamping blocks connected to the moving blocks can clamp and fix workpieces of different sizes, thereby increasing the usage range of the clamping mechanism, and further increasing the usage range of the detection tooling. Since the clamping blocks are connected to the moving blocks through the cooperation of the screw, the through hole and the first threaded hole, it is convenient to replace the clamping blocks. In this way, when measuring the perpendicularity of workpieces of different shapes, the corresponding shaped clamping blocks can be replaced (for example, when measuring the perpendicularity of a square workpiece, replace it with a right-angled U-shaped clamping block). In this way, the usage range of the detection tooling is further increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present utility model will be further described in detail below in conjunction with the drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are only drawn for the purpose of explaining the preferred embodiments and should not be used as a limitation to the scope of the present utility model. In addition, unless otherwise specified, the drawings only schematically show the composition or structure of the described object and may include exaggerated displays, and the drawings are not necessarily drawn to scale.

[0016] Figure 1 is the front view of the present utility model;

[0017] Figure 2 is the side view of the present utility model;

[0018] Figure 3 is the three-dimensional structure diagram of the present utility model;

[0019] Figure 4 is the structure diagram of the dial gauge assembly and the concentricity measuring instrument in the present utility model;

[0020] Figure 5 is Figure 4 the enlarged view of part A in;

[0021] Figure 6 is the three-dimensional structure diagram of the dial gauge assembly and the concentricity measuring instrument in the present utility model;

[0022] Figure 7 is Figure 4 an enlarged view of the middle part B;

[0023] Figure 8 is a schematic structural view of the clamping mechanism in the present utility model;

[0024] Figure 9 is a schematic structural view of the telescopic rod in the present utility model;

[0025] Figure 10 is Figure 9 an enlarged view of the middle part C;

[0026] Figure 11 is a three-dimensional structural view of a U-shaped clamping block in a right-angled shape.

[0027] In the figure: 1, workbench; 2, mounting frame; 3, clamping mechanism; 31, clamping block; 311, connection hole; 32, mounting plate; 33, first moving groove; 34, bidirectional lead screw; 35, moving block; 351, first threaded hole; 36, turntable; 4, driving device; 5, concentricity measuring instrument; 6, perpendicularity measuring instrument; 7, fixing component; 71, adjusting bolt; 72, clamping plate; 73, adjusting hole; 74, connecting rod; 8, meter frame component; 81, mounting seat; 811, through hole; 82, through groove; 83, second moving groove; 831, guiding block; 84, moving plate; 841, first limiting groove; 842, guiding groove; 85, limiting rod; 86, first spring; 87, mounting hole; 88, pulling block; 89, limiting block; 9, telescopic rod; 91, cylinder body; 92, rod body; 93, limiting hole; 94, adjusting seat; 95, mounting groove; 96, second spring; 97, movable rod; 10, sliding groove. Specific embodiments

[0028] The preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are only descriptive and exemplary, and should not be construed as limiting the protection scope of the present utility model.

[0029] It should be noted that: Similar reference numerals represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it may not be further defined and explained in subsequent drawings.

[0030] This embodiment mainly elaborates on the structure of the concentricity and perpendicularity detection tooling for the forklift wheel connecting rod, as follows:

[0031] Such as Figures 1-11As shown, the concentricity and perpendicularity detection tooling for the forklift wheel connecting rod includes a workbench 1 and two mounting brackets 2 symmetrically installed on the workbench 1. A clamping mechanism 3 for clamping the workpiece to be detected is rotatably arranged on each of the two mounting brackets 2. One of the mounting brackets 2 can cooperate with the chute 10 provided on the workbench 1 to move on the workbench 1. In this way, the detection tooling can detect workpieces of different lengths by moving the mounting bracket 2. At the same time, a plurality of grooves are provided in the chute 10. In this way, the movement of the mounting bracket 2 can be restricted by inserting blocks into the grooves on both sides of the mounting bracket 2, so as to make the mounting bracket 2 more stable during use. The other mounting bracket is fixedly connected to the workbench 1. At the same time, a driving device 4 for driving the clamping mechanism 3 to rotate is provided on the mounting bracket 2 fixedly connected to the workbench 1, so that the driving device 4 can be more stable when working. Then, a telescopic rod 9 slidably connected to the workbench 1 is provided on the workbench 1 on one side of the mounting bracket 2. Finally, a gauge bracket assembly 8 for installing a perpendicularity measuring instrument is provided at the top of the telescopic rod 9, and a gauge bracket assembly 8 for installing a concentricity measuring instrument is provided at the top of the mounting bracket 2 fixedly connected to the workbench 1;

[0032] Thus, when the detection tooling is in use, first adjust the distance between the two mounting brackets 2 according to the length of the workpiece to be measured, then clamp and fix the workpiece to be detected by using the clamping mechanism 3, then adjust the length of the telescopic rod 9 so that the bottom of the perpendicularity measuring instrument 6 located at the top of the telescopic rod 9 abuts against the workpiece to be measured, and then push the telescopic rod 9 so that the telescopic rod 9 can move on the workbench 1. In this way, the bottom of the perpendicularity measuring instrument 6 can move along the surface of the workpiece to be measured, so as to realize the measurement of the perpendicularity of the workpiece. When detecting the concentricity of the workpiece, start the driving device 4 to drive the clamping mechanism 3 and the workpiece fixed on the clamping mechanism 3 to rotate, and then make the bottom of the concentricity measuring instrument 5 located on the mounting bracket 2 contact with the workpiece surface. As the workpiece rotates, the concentricity measuring instrument 5 can complete the measurement of the concentricity of the workpiece;

[0033] Among them, the clamping mechanism 3 all includes a mounting plate 32 rotatably installed on the mounting frame 2, and a first moving groove 33 is formed on the side wall of the mounting plate 32 away from the mounting frame 2. At the same time, a bidirectional lead screw 34 is rotatably arranged in the first moving groove 33, and a moving block 35 screwed to the bidirectional lead screw 34 is arranged at each end of the bidirectional lead screw 34. First screw holes 351 are formed on the two moving blocks 35 respectively. Then, a turntable 36 connected to the bidirectional lead screw 34 is rotatably arranged on the side wall of the mounting plate 32 at one end of the bidirectional lead screw 34. Finally, two clamping blocks 31 are symmetrically arranged on the mounting plate 32, and a connecting hole 311 is formed on each of the two clamping blocks 31. A screw rod is arranged in each connecting hole 311, and the screw rods respectively pass through the connecting holes 311 and are screwed to the first screw holes 351;

[0034] In this way, when using the clamping mechanism 3 to clamp the workpiece, rotate the turntable 36 to make the bidirectional lead screw 34 connected to the turntable 36 start to rotate. In this case, the moving blocks 35 screwed to the bidirectional lead screw 34 can move closer to or away from each other on the mounting plate 32 according to the different rotation directions of the turntable 36. In this way, the clamping blocks 31 connected to the moving blocks 35 can clamp and fix workpieces of different sizes, thereby increasing the application range of the clamping mechanism 3, and further increasing the application range of the inspection tooling. Since the clamping blocks 31 and the moving blocks 35 are connected through the cooperation of the screw rods, the through holes 811 and the first screw holes 351, it is convenient to replace the clamping blocks 31. In this way, when measuring the perpendicularity of workpieces of different shapes, replace the corresponding-shaped clamping blocks 31 (for example, when measuring the perpendicularity of a square workpiece, replace the U-shaped clamping block 31 in the shape of a right angle). In this way, the application range of the inspection tooling is further increased.

[0035] The meter frame assembly 8 includes a mounting seat 81 and a through slot 82 opened on the mounting seat 81, and a second movable slot 83 is opened in the mounting seat 81 below the through slot 82, and a movable plate 84 is slidably arranged in the second movable slot 83, and then a mounting hole 87 for installing the concentricity measuring instrument 5 or the verticality measuring instrument 6 is opened at one end of the movable plate 84, and at the same time, a plurality of first limiting slots 841 are opened on the upper surface of the movable plate 84, and a limiting rod 85 is arranged in the through slot 82, and the top of the limiting rod 85 passes through the top of the through slot 82 and is slidably connected to the mounting seat 81, and a pulling block 88 for pulling the limiting rod 85 is arranged on the top of the limiting rod 85, and a limiting block 89 is arranged at the bottom of the limiting rod 85, and then a through hole 811 for the limiting block 89 to pass through is opened on the mounting seat 81 at the top of the second movable slot 83, so that the limiting block 89 can pass through the through hole 811 into the second movable slot The groove 83 is plugged into the first limit groove 841 on the movable plate 84, and finally a first spring 86 is sleeved on the limit rod 85, and the two ends of the first spring 86 are respectively abutted against the top of the through groove 82 and the top of the limit block 89, so that the setting of the first spring 86 can press the limit block 89, so that the limit block 89 will not easily escape from the first limit groove 841, wherein the bottom of the limit block 89 is chamfered so that the size of the bottom of the limit block 89 is smaller than the size of the top of the limit block 89, which facilitates the insertion of the limit block 89 into the first limit groove 841. At the same time, in order to enable the movable plate 84 to move smoothly in the second movable groove 83, a guide groove 842 is opened on the side wall of the movable plate 84 close to the second movable groove 83, and a guide block 831 matching the guide groove 842 is set on the groove wall of the second movable groove 83, and the guide block 831 is slidably connected with the guide groove 842.

[0036] When using the table frame assembly 8, first install the concentricity measuring instrument 5 or the verticality measuring instrument 6 on the movable plate 84 through the mounting hole 87, and then pull the pull block 88 so that the limit rod 85 drives the limit block 89 to disengage from the first limit groove 841, so that the movable plate 84 can be pushed to move in the second movable groove 83 until the bottom of the concentricity measuring instrument 5 or the verticality measuring instrument 6 is moved to the position to be detected on the workpiece, and then release the pull rod to allow the limit block 89 to pass through the through hole 811 and enter the first limit groove 841, so that the stability of the concentricity measuring instrument 5 or the verticality measuring instrument 6 during operation can be ensured.

[0037] Further, a fixing component 7 is arranged in the mounting hole 87. The fixing component 7 includes an adjusting hole 73 opened on the side wall of the moving plate 84 close to the mounting hole 87. The adjusting hole 73 is communicated with the mounting hole 87. An adjusting bolt 71 is arranged in the adjusting hole 73. One end of the adjusting bolt 71 close to the mounting hole 87 is rotatably provided with a connecting rod 74. Then, two clamping plates 72 for clamping the concentricity measuring instrument 5 or the perpendicularity measuring instrument 6 are symmetrically arranged in the mounting hole 87. In order to better clamp the concentricity measuring instrument 5 or the perpendicularity measuring instrument 6, the two clamping plates 72 are both arranged in a semi-circular arc shape. At the same time, in order to prevent the clamping block 31 from scratching the concentricity measuring instrument 5 or the perpendicularity measuring instrument 6, protective layers are arranged on the inner walls of the clamping plates 72. One of the two clamping plates 72 is fixedly connected to the inner wall of the mounting hole 87, and the other clamping plate 72 is connected to the connecting rod 74. In this way, by rotating the adjusting bolt 71, the clamping plate 72 connected to the connecting rod 74 can be driven to move in the mounting hole 87. In this way, the concentricity measuring instrument 5 or the perpendicularity measuring instrument 6 can be fixed by rotating the adjusting bolt 71, thus facilitating the installation and fixation of the concentricity measuring instrument 5 or the perpendicularity measuring instrument 6.

[0038] The telescopic rod 9 includes a cylinder body 91 and a rod body 92 slidably mounted in the cylinder body 91. At the same time, a plurality of limiting holes 93 are circumferentially opened on the cylinder wall of the cylinder body 91 from top to bottom. A regulating seat 94 is arranged at the bottom of the rod body 92. A plurality of mounting grooves 95 are circumferentially opened on the side wall of the regulating seat 94. A movable rod 97 is slidably arranged in each mounting groove 95. A second spring 96 is arranged in each mounting groove 95. One end of the second spring 96 abuts against the mounting groove 95, and the other end abuts against the movable rod 97. At the same time, the movable rod 97 can be inserted into the limiting hole 93. In this way, when the telescopic rod 9 is in use, the length of the telescopic rod 9 can be adjusted by pulling or pushing the rod body 92. In this way, it is convenient to adjust the height position of the perpendicularity measuring instrument 6 located at the top of the telescopic rod 9. When pulling or pushing the rod body 92, first, the movable rod 97 located in the limiting hole 93 needs to be pressed to retract the movable rod 97 into the mounting groove 95. Only in this way can the rod body 92 smoothly move in the cylinder body 91. In this way, the cooperation of the movable rod 97 and the limiting hole 93 can limit the movement of the rod body 92 in the cylinder body 91, and the arrangement of the second spring 96 can ensure the reliability of the connection between the movable rod 97 and the limiting rod 85.

[0039] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0040] The concentricity and perpendicularity detection tooling for the forklift wheel connecting rod provided by the present utility model has been introduced in detail above. Specific examples are used in this article to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the present utility model and its core idea. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principle of the present utility model, several improvements and modifications can still be made to the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

Claims

1. Concentricity and perpendicularity detection tooling for a forklift wheel connecting rod, including a workbench, on which two mounting brackets are symmetrically arranged. On the adjacent side walls of the two mounting brackets, a clamping mechanism is rotatably arranged respectively. On the workbench on one side of the mounting bracket, a telescopic rod slidably connected to the workbench is arranged. On the telescopic rod and the mounting bracket, a meter frame assembly for installing concentricity and perpendicularity measuring instruments is arranged respectively, characterized in that: The clamping mechanisms all include a mounting plate which is rotatably mounted on the mounting frame. A first moving groove is formed on the side wall of the mounting plate away from the mounting frame; a bidirectional lead screw which is rotatably mounted in the first moving groove. A moving block is provided at each end of the bidirectional lead screw. The moving block is screwed to the bidirectional lead screw, and a first threaded hole is formed in the moving block; a turntable which is rotatably mounted on the side wall of the mounting plate. The turntable is connected to one end of the bidirectional lead screw; clamping blocks. There are two clamping blocks which are both mounted on the mounting plate. A connecting hole is respectively formed in each clamping block, and a screw rod is arranged in each connecting hole. The screw rods respectively pass through the connecting holes and are screwed to the first threaded holes.

2. The concentricity and perpendicularity detection tooling for the forklift wheel connecting rod according to claim 1, characterized in that: The table frame assemblies all include a mounting seat which is provided with a through groove. A second moving groove is formed in the mounting seat below the through groove; a moving plate which is slidably mounted in the second moving groove. A plurality of first limiting grooves are formed on the upper surface of the moving plate. An installation hole for installing an instrument for measuring concentricity and perpendicularity is formed at one end of the moving plate; a limiting rod which is mounted in the through groove. The top of the limiting rod passes through the top of the through groove and is slidably connected to the mounting seat. A limiting block is arranged at the bottom of the limiting rod. The limiting block penetrates into the second moving groove and is inserted into the first limiting groove on the moving plate. A first spring is sleeved on the limiting rod, and the two ends of the first spring respectively abut against the top of the through groove and the top of the limiting block.

3. The concentricity and perpendicularity detection tooling for the forklift wheel connecting rod according to claim 1, characterized in that: A sliding groove for slidably connecting the mounting frame is formed on the workbench, and one of the mounting frames in the mounting frames is slidably connected to the sliding groove.

4. The concentricity and perpendicularity detection tooling for the forklift wheel connecting rod according to claim 1, characterized in that: A driving device for controlling the rotation of the clamping mechanism is arranged on the mounting frame.

5. The concentricity and perpendicularity detection tooling for the forklift wheel connecting rod according to claim 1, characterized in that: The telescopic rod includes a cylinder body in which a rod body is slidably arranged. A plurality of limiting holes are circumferentially formed on the cylinder wall of the cylinder body from top to bottom; an adjusting seat which is mounted at the bottom of the rod body in the cylinder body. A plurality of mounting grooves are circumferentially formed on the side wall of the adjusting seat. A movable rod is slidably arranged in each mounting groove. A second spring is arranged in each mounting groove. One end of the second spring abuts against the mounting groove and the other end abuts against the movable rod. The movable rod is inserted into the limiting hole.

6. The concentricity and perpendicularity detection tooling for the forklift wheel connecting rod according to claim 2, wherein: A fixing component is arranged in the installation hole. The fixing component includes an adjusting hole which is formed on the side wall of the moving plate close to the installation hole. An adjusting bolt is arranged in the adjusting hole. The adjusting hole communicates with the installation hole. A connecting rod is rotatably arranged at one end of the adjusting bolt close to the installation hole; clamping plates. There are no less than two clamping plates which are all mounted in the installation hole. One of the two clamping plates is fixedly connected to the installation hole and the other clamping plate is connected to the connecting rod.

7. The concentricity and perpendicularity detection tooling for the forklift wheel connecting rod according to claim 2, characterized in that: A guiding groove is formed on the side wall of the moving plate close to the second moving groove. A guiding block matched with the guiding groove is arranged on the groove wall of the second moving groove. The guiding block is slidably connected to the guiding groove.

8. The concentricity and perpendicularity detection tooling for the forklift wheel connecting rod according to claim 2, characterized in that: The bottom of the limiting block is chamfered, and the size of the bottom of the limiting block is smaller than the size of the top of the limiting block.

9. The concentricity and perpendicularity detection tooling for the forklift wheel connecting rod according to claim 6, characterized in that: The splints are all arranged in an arc shape, the splints are arranged in fit with the inner wall of the mounting hole, and protective layers are arranged on the inner walls of the splints.