Shaft rod concentricity detection device

Abstract

The utility model discloses a shaft rod concentricity detection device which is characterized in that the shaft rod concentricity detection device comprises a base plate, a support is arranged above the base plate, the upper end of the support is rotatably connected with two driven wheels for placing a shaft rod, a driving roller for driving the shaft rod to rotate is arranged above the support on the left side, and the driving roller is connected with a first servo motor. A driven roller pressed on the shaft rod is arranged above the bracket on the right side; the left bracket is provided with a left cylinder for driving the driving roller to move up and down; a right cylinder for driving the driven roller to move up and down is arranged on the right bracket; the substrate is provided with a probe which is positioned between the two brackets and is used for detecting the shaft rod, and the substrate is provided with a lower cylinder for driving the probe to move up and down; the cross beam is provided with an upper cylinder facing the downward pressing shaft rod; the purposes of completing concentricity detection and straightening work of the shaft body and improving the production efficiency of the shaft body are achieved.

Description

Technical Field

[0001] The utility model relates to a shaft rod detection device, more specifically, it relates to a shaft rod concentricity detection device. Background Art

[0002] The shaft needs to be tested for concentricity after processing, which is mainly used to calibrate the concentricity of the two ends and the middle position of the shaft. In existing factories, after the concentricity test of the shaft, the shaft that needs to be adjusted needs to be straightened in another device. The disassembly and transportation of the shaft during the process is too cumbersome, which will lead to reduced shaft production efficiency. Utility Model Content

[0003] The utility model aims to provide a shaft rod concentricity detection device, so as to complete the concentricity detection and straightening work of the shaft body and improve the production efficiency of the shaft body.

[0004] The above technical objectives of the utility model are achieved through the following technical solutions:

[0005] A shaft concentricity detection device includes a base plate, two left and right brackets are arranged above the base plate, the upper ends of the brackets are rotatably connected to two driven wheels for placing the shafts, the two driven wheels are arranged in parallel, a driving roller for driving the shaft to rotate is provided above the left bracket, the driving roller is connected to a first servo motor, and a driven roller pressed onto the shaft is provided above the right bracket; the left bracket is provided with a left cylinder for driving the driving roller to move up and down; the right bracket is provided with a right cylinder for driving the driven roller to move up and down; the base plate is provided with a detection needle located between the two brackets for detecting the shaft, and the base plate is provided with a lower cylinder for driving the detection needle to move up and down; a crossbeam is installed on the base plate, and the crossbeam is provided with an upper cylinder for pressing the shaft downward; the upper cylinder and the detection needle are arranged correspondingly up and down.

[0006] By adopting the above technical solution, the shaft is placed on the driven wheels on both sides, the driving roller and the driven roller are pressed on the shaft to drive the shaft to rotate, and the detection needle below can detect the concentricity of the middle position of the shaft. The bending position of the shaft is adjusted by pressing down the upper cylinder;

[0007] In this design, the driving roller and the driven roller can move up and down to make room for the shaft to be placed on the driven wheel; this design adopts an integrated detection and correction design to detect and straighten the concentricity of the shaft.

[0008] Preferably, the base plate is provided with a lower track, and the lower cylinder slides on the lower track; the crossbeam is provided with an upper track, and the upper cylinder slides on the upper track; the upper track and the lower track are located in the same vertical plane.

[0009] By adopting the above technical solutions, in some production factories with high concentricity requirements, they are not satisfied with the detection and correction of the center point of the shaft rod. Therefore, upper and lower tracks are provided for the probe needle and the upper cylinder to move.

[0010] Preferably, the upper cylinder is provided with an upper lead screw for driving sliding, the lower cylinder is provided with a lower lead screw for driving sliding, a synchronous belt drive is provided between the upper lead screw and the lower lead screw, and the lower lead screw is provided with a second servo motor for driving.

[0011] By adopting the above technical solutions, the design of the synchronous belt and the lead screw enables the upper cylinder and the lower cylinder to complete synchronous movement, and more conveniently and efficiently perform detection and straightening in the length direction of the shaft rod.

[0012] Preferably, the probe needle is a ruby probe needle.

[0013] By adopting the above technical solutions, the ruby probe needle has a higher hardness and a longer service life for detecting concentricity.

[0014] Preferably, the piston rod of the upper cylinder is provided with a pressing block, and the pressing block is provided with a groove that fits the curved surface of the shaft rod.

[0015] By adopting the above technical solutions, the groove fits the surface of the shaft rod more closely, the shaft rod is subjected to less pressure during the pressing process, and the surface of the shaft rod is not easily damaged.

[0016] Preferably, the piston rod of the lower cylinder is provided with an anti-collision buffer module, and the probe needle is installed in the anti-collision buffer module.

[0017] Preferably, the anti-collision buffer module includes a fixing block installed on the piston rod of the lower cylinder. The fixing block is provided with a vertically opened sliding groove. A vertical spring is provided in the sliding groove. The probe needle is provided with a base, and the base slides in the sliding groove. A stop block for restricting the base from slipping off is provided at the opening of the sliding groove, and the spring is in a compressed state.

[0018] By adopting the above technical solutions, in this design, for an extremely bent shaft rod, it may hit the probe needle. If it is a rigid collision, it is easy to cause damage to the probe needle. Therefore, a buffer module is designed; and the spring is in a compressed state to keep the probe needle in a holding position.

[0019] Preferably, the substrate is provided with a guide plate for the shaft rod to slide down. The guide plate is arranged obliquely downward. The distance between the upper end of the guide plate and the driven wheel is less than 1 cm, and a storage box is provided at the end of the guide plate.

[0020] By adopting the above technical solutions, after the shaft rod is detected, the employee directly places it on the guide plate, and it slides into the storage box along the guide plate, realizing rapid collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of the detection device in the embodiment Figure 1;

[0022] Figure 2 is a schematic diagram of the structure of the detection device in the embodiment Figure 2 ;

[0023] Figure 3 is a schematic diagram of the connection relationship among the upper lead screw, lower lead screw and belt in the embodiment;

[0024] Figure 4 is the front view of the shaft rod placed in the detection device in the embodiment;

[0025] Figure 5 is a cross-sectional view of the fixing block and the detection needle in the embodiment.

[0026] In the figure:

[0027] 11. Substrate; 12. Cross beam;

[0028] 21. Bracket; 22. Driven wheel;

[0029] 31. Left cylinder; 32. Right cylinder; 33. Driving roller; 34. Driven roller; 35. First servo motor; 36. Belt;

[0030] 41. Lower cylinder; 42. Detection needle;

[0031] 51. Upper cylinder; 52. Pressing block; 53. Groove;

[0032] 61. Lower track; 62. Upper track; 63. Upper lead screw; 64. Lower lead screw; 65. Second servo motor; 66. Belt;

[0033] 71. Fixing block; 72. Slide groove; 73. Spring; 74. Base; 75. Stopper;

[0034] 81. Guide plate; 82. Storage box;

[0035] 9. Shaft rod. Specific embodiments

[0036] The following is a further detailed description of the present utility model in conjunction with the attached Figure 1 - attached Figure 5 to further illustrate the present utility model in detail.

[0037] Embodiment, a concentricity detection device for a shaft rod, referring to Figure 1 one Figure 5, including a substrate 11. Two brackets 21 arranged left and right are fixed on the upper surface of the substrate 11. The upper ends of the brackets 21 are rotatably connected with two driven wheels 22 for placing a shaft rod 9. The driven wheels 22 are connected to the brackets 21 through shafts. One end of the shaft rod 9 is placed between the two driven wheels 22, and both ends of the shaft rod 9 are placed on the two brackets 21, so that the shaft rod 9 can rotate around its own axis on the driven wheels 22. The two driven wheels 22 are arranged in parallel, and the shaft rod 9 is horizontally placed on the driven wheels 22 on both sides.

[0038] Above the left bracket 21, there is a driving roller 33 for driving the shaft rod 9 to rotate. The driving roller 33 is connected with a first servo motor 35. Above the right bracket 21, there is a driven roller 34 pressed on the shaft rod 9; on the left bracket 21, there is a left air cylinder 31 for driving the driving roller 33 to move up and down; on the right bracket 21, there is a right air cylinder 32 for driving the driven roller 34 to move up and down;

[0039] The left air cylinder 31 drives the first servo motor 35 and the driving roller 33 to move up and down;

[0040] The right air cylinder 32 drives the driven roller 34 to move up and down;

[0041] The driving roller 33 and the driven roller 34 are located directly above the two driven wheels 22, and the axes of the driving roller 33 and the driven roller 34 are both parallel to the axis of the placed shaft rod 9.

[0042] When the driving roller 33 and the driven roller 34 move up, the shaft rod 9 can be smoothly placed between the two driven wheels 22.

[0043] Then the driving roller 33 and the driven roller 34 move down and press on the surface of the shaft rod 9. The driving roller 33 rotates and drives the shaft rod 9 to rotate itself, so as to facilitate the detection of concentricity by the detection needle 42.

[0044] The substrate 11 is provided with a detection needle 42 for detecting the shaft rod 9 between the two brackets 21. The detection needle 42 is a ruby detection needle 42, and the detection needle 42 is used to detect the concentricity of the surface of the shaft rod 9. The substrate 11 is provided with a lower air cylinder 41 for driving the detection needle 42 to move up and down; a cross beam 12 is installed on the substrate 11, and the cross beam 12 is provided with an upper air cylinder 51 pressing down on the shaft rod 9. The cross beam 12 and the substrate 11 are fixed by two columns.

[0045] The upper air cylinder 51 and the detection needle 42 are arranged vertically corresponding to each other.

[0046] The detection needle 42 can be lifted and lowered, which is convenient for creating more operating space and avoiding collision with the shaft rod 9 when installing the shaft rod 9.

[0047] The detection needle 42 detects the concentricity of the central position of the shaft rod 9, and then the bent position is straightened by the pressing upper air cylinder 51.

[0048] The substrate 11 is provided with a lower track 61, and the lower cylinder 41 slides on the lower track 61; the cross-sections of the upper track 62 and the lower track 61 are both T-shaped.

[0049] The cross beam 12 is provided with an upper track 62, and the upper cylinder 51 slides on the upper track 62; the upper track 62 and the lower track 61 are in the same vertical plane.

[0050] The upper track 62, the lower track 61, the lower lead screw 64, and the lower lead screw 64 are arranged in parallel.

[0051] The upper cylinder 51 is provided with an upper lead screw 63 for driving the sliding, and the upper lead screw 63 is threadedly connected to the seat body of the upper cylinder 51. Therefore, the rotation of the upper lead screw 63 can drive the upper cylinder 51 to slide back and forth along the upper track 62;

[0052] The lower cylinder 41 is provided with a lower lead screw 64 for driving the sliding, and the lower lead screw 64 is threadedly connected to the seat body of the lower cylinder 41. Therefore, the rotation of the lower lead screw 64 can drive the lower cylinder 41 to slide back and forth along the lower track 61;

[0053] A synchronous belt drive is provided between the lower lead screw 64 and the lower lead screw 64, and the lower lead screw 64 is provided with a second servo motor 65 for driving.

[0054] Through holes are opened below the two brackets 21, and the lower track 61 and the lower lead screw 64 pass through the through holes.

[0055] The upper lead screw 63 and the lower lead screw 64 are both fixed with the same gears, and a belt 6636 is sleeved on the gears, relying on the synchronous belt drive in which the teeth on the belt 6636 mesh with the teeth on the pulley.

[0056] The shaft of the second servo motor 65 is fixed to the lower lead screw 64. Therefore, under the drive of the second servo motor 65, the upper lead screw 63 and the lower lead screw 64 rotate synchronously, thereby controlling the synchronous movement of the upper cylinder 51 and the lower cylinder 41, and completing the concentricity detection and straightening of the overall length direction of the shaft rod 9.

[0057] The piston rod of the upper cylinder 51 is provided with a pressing block 52, and the pressing block 52 is provided with a groove 53 that fits the curved surface of the shaft rod 9.

[0058] The piston rod of the lower cylinder 41 is provided with an anti-collision buffer module, and the detection needle 42 is installed on the anti-collision buffer module;

[0059] The anti-collision buffer module includes a fixed block 71 installed on the piston rod of the lower cylinder 41. The fixed block 71 is provided with a vertically opened chute 72. A vertical spring 73 is arranged in the chute 72. The detection needle 42 is provided with a base 74, and the base 74 slides in the chute 72. A stop block 75 for restricting the base 74 from slipping off is arranged at the opening of the chute 72, and the spring 73 is in a compressed state.

[0060] The substrate 11 is provided with a guide plate 81 for the shaft 9 to slide down. The guide plate 81 is arranged obliquely downward. The distance between the upper end of the guide plate 81 and the driven wheel 22 is 0.5 cm. A storage box 82 is provided at the end of the guide plate 81.

[0061] Working principle:

[0062] (1) Raise the driving roller 33 and the driven roller 34 and place the shaft 9.

[0063] (2) Press down the driving roller 33 and the driven roller 34 on the shaft 9 to drive the shaft 9 to rotate.

[0064] (3) The detection needle 42 moves upward to detect the concentricity of the center of the shaft 9, and the upper air cylinder 51 presses down for correction. When the upper air cylinder 51 presses down, the detection needle 42 moves downward driven by the lower air cylinder 41.

[0065] (4) The detection needle 42 and the upper air cylinder 51 perform upper detection in the length direction of the shaft 9 driven by the synchronous belt:

[0066] (5) The shaft 9 after detection and straightening is placed on the guide plate 81 and slides into the storage box 82 for collection.

[0067] The above is only the preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A device for detecting the concentricity of a shaft rod, comprising a base plate (11). Above the base plate (11), there are two brackets (21) arranged left and right. The upper ends of the brackets (21) are rotatably connected with two driven wheels (22) for placing the shaft rod. The two driven wheels (22) are arranged in parallel. It is characterized in that: Above the left bracket (21), there is a driving roller (33) for driving the shaft rod to rotate. The driving roller (33) is connected with a first servo motor (35). Above the right bracket (21), there is a driven roller (34) pressed on the shaft rod: The left bracket (21) is provided with a left air cylinder (31) for driving the driving roller (33) to move up and down; The right bracket (21) is provided with a right air cylinder (32) for driving the driven roller (34) to move up and down; The base plate (11) is provided with a detection needle (42) for detecting the shaft rod between the two brackets (21). The base plate (11) is provided with a lower air cylinder (41) for driving the detection needle (42) to move up and down; A cross beam (12) is installed on the base plate (11). The cross beam (12) is provided with an upper air cylinder (51) pressing down on the shaft rod; The upper air cylinder (51) and the detection needle (42) are arranged vertically corresponding to each other.

2. The concentricity detection device for the shaft rod according to claim 1, characterized in that: The base plate (11) is provided with a lower track (61). The lower air cylinder (41) slides on the lower track (61); The cross beam (12) is provided with an upper track (62). The upper air cylinder (51) slides on the upper track (62); The upper track (62) and the lower track (61) are located in the same vertical plane.

3. The concentricity detection device for the shaft rod according to claim 2, characterized in that: The upper air cylinder (51) is provided with an upper lead screw (63) for driving the sliding. The lower air cylinder (41) is provided with a lower lead screw (64) for driving the sliding. There is a synchronous belt drive between the upper lead screw (63) and the lower lead screw (64). The lower lead screw (64) is provided with a second servo motor (65) for driving.

4. The concentricity detection device for the shaft rod according to claim 1, wherein: The detection needle (42) is a ruby detection needle (42).

5. The concentricity detection device for the shaft rod according to claim 1, characterized in that: The piston rod of the upper air cylinder (51) is provided with a pressing block (52). The pressing block (52) is provided with a groove (53) fitting the curved surface of the shaft rod.

6. The concentricity detection device for the shaft rod according to claim 1, wherein: The piston rod of the lower air cylinder (41) is provided with an anti-collision buffer module. The detection needle (42) is installed on the anti-collision buffer module.

7. The concentricity detection device for the shaft rod according to claim 6, characterized in that: The anti-collision buffer module includes a fixing block (71) installed on the piston rod of the lower air cylinder (41). The fixing block (71) is provided with a vertically opened sliding groove (72). A vertical spring (73) is arranged in the sliding groove (72). The detection needle (42) is provided with a base (74). The base (74) slides in the sliding groove (72). The opening of the sliding groove (72) is provided with a stop block (75) for restricting the base (74) from slipping off. The spring (73) is in a compressed state.

8. The concentricity detection device for the shaft rod according to claim 1, characterized in that: The base plate (11) is provided with a guiding plate (81) for the shaft rod to slide down. The guiding plate (81) is arranged obliquely downward. The distance between the upper end of the guiding plate (81) and the driven wheel (22) is less than 1 cm. The end of the guiding plate (81) is provided with a storage box (82).

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