Detection device for processing elastic shaft

Abstract

The utility model relates to a detection device for processing an elastic shaft, which belongs to the field of elastic shaft detection devices and comprises a detection seat, a mounting seat is slidably connected onto the detection seat, the mounting seat is slidably connected with the detection seat along the left-right direction, the mounting seat is used for mounting a dial indicator, and a supporting mechanism is arranged on the detection seat. The supporting mechanism comprises a driving shaft and a plurality of supporting assemblies, the multiple supporting assemblies are distributed in the left-right direction, the driving shaft is parallel to the left-right direction, a driving system is connected to the driving shaft, and the driving system is used for achieving autorotation of the driving shaft; the supporting assembly comprises a supporting seat, a connecting unit and two supporting units are arranged on the supporting seat, the two supporting units are symmetrically arranged front and back, when the elastic shaft is fixed, only the elastic shaft needs to be inserted into the two supporting rods, tedious operation is not needed, the convenience of outer circle run-out detection is improved, and the working efficiency is improved. Therefore, the outer circle run-out detection efficiency is improved.

Description

Technical Field

[0001] This utility model relates to a testing device for processing elastic shafts, belonging to the field of elastic shaft testing devices. Background Technology

[0002] Flexible shafts are commonly used in engines, primarily employing splines to connect mechanical transmissions to servo motors, providing elastic recoil and torque transmission. During operation, the flexible shaft also serves as overload protection; if the engine is overloaded, the flexible shaft will break instantly, protecting the engine from damage. The overall structural precision of the flexible shaft makes it a non-standard part; one end is splined, and the other end is tapered. During machining, the external circumference of the flexible shaft needs to be checked.

[0003] Utility model patent CN209745166U discloses a device for detecting the outer diameter runout of a center rod, relating to the field of mechanical product measurement technology. It includes a base plate and a top plate that are parallel to each other, and a side plate perpendicularly connecting the base plate and the top plate. A positioning mandrel is disposed on the side plate, and a dial indicator is disposed on the top plate. The positioning mandrel is parallel to the top plate, and the dial indicator needle corresponds to the positioning mandrel. One end of the center rod to be measured is sleeved on the positioning mandrel, and the dial indicator needle contacts the outer wall surface of the other end of the center rod. This device for detecting the outer diameter runout of a center rod can quickly measure the runout of the center rod to be measured, significantly improving the detection efficiency. However, in the prior art, the operation of fixing the elastic shaft is cumbersome, affecting the detection efficiency of the elastic shaft.

[0004] Therefore, there is a need for a detection device for machining elastic shafts to improve ease of operation and detection efficiency. Summary of the Invention

[0005] The technical problem to be solved by this utility model is: to overcome the shortcomings of the prior art and provide a detection device for processing elastic shafts that improves the ease of operation and detection efficiency.

[0006] The technical solution adopted by this utility model to solve the above problems is as follows: a detection device for processing elastic shaft, including a detection seat, a mounting seat slidably connected to the detection seat, the mounting seat and the detection seat being slidably connected in the left and right direction, the mounting seat being used to mount a dial indicator, and a support mechanism being provided on the detection seat;

[0007] The support mechanism includes a drive shaft and multiple support components, which are distributed along the left-right direction. The drive shaft is parallel to the left-right direction and a drive system is connected to the drive shaft. The drive system is used to realize the rotation of the drive shaft.

[0008] The support assembly includes a support base, on which a connecting unit and two support units are provided. The two support units are arranged symmetrically front to back and are connected by the connecting unit. One of the two support units is connected to the drive shaft.

[0009] The support unit includes a support rod arranged at an angle. One end of the support rod is hinged to a support base via a pin, which is parallel to the left-right direction. Two support wheels are rotatably connected to the support rod, distributed along the length of the support rod. The rotation centers of the support wheels are parallel to the left-right direction. One of the support wheels is mounted on a drive shaft. The pin is connected to a connecting unit, which drives the pin to rotate.

[0010] Preferably, the two support rods in the same support assembly are in an inverted V-shape.

[0011] Preferably, the support wheel is provided with anti-slip texture.

[0012] Preferably, the connecting unit includes a guide rod arranged vertically, two support rods symmetrical about the guide rod, a connecting plate fixedly mounted at the bottom of the guide rod, the connecting plate fixedly mounted on a support base, a limiting block fixedly mounted at the top of the guide rod, a slider movably connected to the guide rod, the slider connecting two first connecting rods, the two first connecting rods corresponding one-to-one with the two support rods, one end of the first connecting rod hinged to the slider, the other end of the first connecting rod connected to a pin shaft via a second connecting rod, the second connecting rod being arranged at an angle, one end of the second connecting rod fixedly mounted on the pin shaft, the other end of the second connecting rod hinged to the first connecting rod, the slider abutting against the limiting block, a spring sleeved on the guide rod, the spring located between the connecting plate and the slider, the two ends of the spring being fixedly connected to the connecting plate and the limiting block respectively.

[0013] Preferably, one end of the pin is provided with a slot, one end of the second connecting rod is inserted into the slot, and the second connecting rod is detachably and fixedly connected to the pin by a locking screw.

[0014] Preferably, the top of the detection seat is provided with a first sliding groove, which is parallel to the left and right direction. The bottom of the support seat is inserted into the first sliding groove, and the support seat and the first sliding groove are slidably connected in the left and right direction.

[0015] Preferably, the first groove is a dovetail groove.

[0016] Preferably, the number of support components is three.

[0017] Preferably, the top of the detection seat is provided with two second sliding grooves, which are distributed along the front-to-back direction and parallel to the left-to-right direction. The bottom of the mounting seat is provided with two connecting strips, which correspond one-to-one with the two second sliding grooves and are inserted into the second sliding grooves.

[0018] Compared with the prior art, the advantages of this utility model are:

[0019] This utility model discloses a detection device for machining elastic shafts. When fixing the elastic shaft, it is only necessary to insert the elastic shaft into two support rods, eliminating the need for cumbersome operations and improving the convenience and efficiency of outer diameter runout detection. Attached Figure Description

[0020] Figure 1 This is a perspective view of a detection device for machining an elastic shaft according to the present invention;

[0021] Figure 2 for Figure 1 The main view;

[0022] Figure 3 for Figure 1 Top view;

[0023] Figure 4 for Figure 1 The left view;

[0024] Figure 5 A schematic diagram of the supporting components;

[0025] Figure 6 This is a structural diagram of the connecting unit;

[0026] Figure 7 A schematic diagram of the connection structure between the pin and the support rod;

[0027] Figure 8 This is a schematic diagram of the mounting base.

[0028] Figure 9 This is a schematic diagram of the structure of an elastic shaft.

[0029] in:

[0030] Detection seat 10, mounting seat 11, support mechanism 12, first slide groove 13, second slide groove 14, connecting bar 15;

[0031] Drive shaft 121, support assembly 122;

[0032] Support base 1221, connecting unit 1222, support unit 1223;

[0033] Guide rod 12221, connecting plate 12222, limit block 12223, slider 12224, first connecting rod 12225, second connecting rod 12226, spring 12227, slot 12228, locking screw 12229;

[0034] Support rod 12231, pin 12232, support wheel 12233. Detailed Implementation

[0035] like Figure 1-9 As shown, a detection device for machining an elastic shaft in this embodiment includes a detection seat 10, a mounting seat 11 slidably connected to the detection seat 10, the mounting seat 11 and the detection seat 10 being slidably connected in the left-right direction, the mounting seat 11 being used to mount a dial indicator, and a support mechanism 12 being provided on the detection seat 10, the support mechanism 12 being used to realize the rotational support of the elastic shaft, and the support assembly 122 being used to realize the rotation of the elastic shaft;

[0036] The support mechanism 12 includes a drive shaft 121 and multiple support components 122. The multiple support components 122 are distributed along the left and right direction. The specific number of support components 122 is three. The drive shaft 121 is parallel to the left and right direction. A drive system is connected to the drive shaft 121. The drive system is used to realize the rotation of the drive shaft 121.

[0037] The support assembly 122 includes a support base 1221, on which a connecting unit 1222 and two support units 1223 are provided. The two support units 1223 are arranged symmetrically front and back, and are connected by the connecting unit 1222. One of the two support units 1223 is connected to the drive shaft 121.

[0038] The support unit 1223 includes a support rod 12231, which is arranged at an angle. One end of the support rod 12231 is hinged to the support base 1221 via a pin 12232. The pin 12232 is parallel to the left-right direction. Two support wheels 12233 are rotatably connected to the support rod 12231. The two support wheels 12233 are distributed along the length of the support rod 12231. The rotation center of the support wheels 12233 is parallel to the left-right direction. One of the support wheels 12233 is mounted on a drive shaft 121. The pin 12232 is connected to a connecting unit 1222, which is used to drive the pin 12232 to rotate.

[0039] The two support rods 12231 in the same support assembly 122 are in an inverted V-shape;

[0040] Before performing external diameter runout testing on the elastic shaft, place the elastic shaft parallel to the left and right directions and install the dial indicator on the mounting base 11;

[0041] When the elastic shaft is rotated and supported by the support assembly 122, the elastic shaft moves downward and pushes the two upper support wheels 12233 to move away in the front and rear directions respectively, thereby driving the support rod 12231 to rotate, thus realizing the rotation of the pin 12232. When the elastic shaft separates from the upper support wheels 12233, the pin 12232 is driven to rotate in the opposite direction through the connecting unit 1222, thereby clamping and fixing the elastic shaft with the four support wheels 12233. When detecting the outer diameter runout of the elastic shaft, the drive system drives the drive shaft 121. The rotation causes one of the support wheels 12233 to rotate. The rotation of this support wheel 12233 drives the elastic shaft to rotate through friction. The rotation of the elastic shaft also drives the other support wheels 12233 to rotate through friction. Then, the test probe of the dial indicator is pressed against the outer peripheral wall of the elastic shaft. As the elastic shaft rotates, the dial indicator detects the runout of the outer circle of the elastic shaft. At the same time, the mounting base 11 is moved in the left and right directions, so that the runout of the outer circle of the elastic shaft can be detected at various positions along the length of the elastic shaft. After the test is completed, the elastic shaft is pulled up.

[0042] The drive system can be a drive source such as a motor or a manual drive device such as a rocker wheel, which realizes the rotation of the drive shaft 121 through the motor and the rocker wheel.

[0043] Here, when fixing the elastic shaft, there is no need for cumbersome operations, which improves the convenience of external diameter runout detection, that is, improves the efficiency of external diameter runout detection.

[0044] The support wheel 12233 is provided with anti-slip texture, which increases the friction between the support wheel 12233 and the elastic shaft, thereby improving the reliability of the support wheel 12233 driving the elastic shaft to rotate.

[0045] The connecting unit 1222 includes a guide rod 12221, which is arranged vertically. Two support rods 12231 are symmetrical about the guide rod 12221. A connecting plate 12222 is fixedly installed at the bottom end of the guide rod 12221, and the connecting plate 12222 is fixedly installed on the support base 1221. The top end of the guide rod 12221 is fixedly installed on the limiting block 12223. A slider 12224 is movably connected to the guide rod 12221. The slider 12224 is connected to two first connecting rods 12225. The two first connecting rods 12225 correspond one-to-one with the two support rods 12231. The slider 12224 is hinged, and the other end of the first connecting rod 12225 is connected to the pin 12232 via the second connecting rod 12226. The second connecting rod 12226 is arranged at an angle, and one end of the second connecting rod 12226 is fixedly mounted on the pin 12232. The other end of the second connecting rod 12226 is hinged to the first connecting rod 12225. The slider 12224 abuts against the limiting block 12223. A spring 12227 is sleeved on the guide rod 12221. The spring 12227 is located between the connecting plate 12222 and the slider 12224. The two ends of the spring 12227 are respectively fixedly connected to the connecting plate 12222 and the limiting block 12223.

[0046] When the elastic shaft pushes the two upper support wheels 12233 away from the movement, the two pins 12232 rotate simultaneously in opposite directions. The rotation of the pins 12232 drives the slider 12224 to descend on the guide rod 12221 through the second connecting rod 12226 and the first connecting rod 12225, and causes the spring 12227 to deform. When the elastic shaft separates from the upper support wheels 12233, the slider 12224 rises through the elastic action of the spring 12227. The rise of the slider 12224 drives the pins 12232 to rotate in opposite directions through the first connecting rod 12225 and the second connecting rod 12226. This allows the four support wheels 12233 to clamp and fix the elastic shaft. In addition, since the two first connecting rods 12225 are hinged to the slider 12224 at the same time, the two support rods 12231 can rotate simultaneously and always remain symmetrical.

[0047] One end of the pin 12232 is provided with a slot 12228, and one end of the second connecting rod 12226 is inserted into the slot 12228. The second connecting rod 12226 is detachably and fixedly connected to the pin 12232 by a locking screw 12229.

[0048] The top of the detection seat 10 is provided with a first sliding groove 13, which is parallel to the left and right direction. The bottom of the support seat 1221 is inserted into the first sliding groove 13. The support seat 1221 and the first sliding groove 13 are slidably connected in the left and right direction. The first sliding groove 13 is a dovetail groove.

[0049] The top of the detection seat 10 is provided with two second sliding grooves 14, which are distributed along the front-back direction and are parallel to the left-right direction. The bottom of the mounting seat 11 is provided with two connecting strips 15, which correspond one-to-one with the two second sliding grooves 14 and are matched. The connecting strips 15 are inserted into the second sliding grooves 14.

[0050] In summary, when fixing the elastic shaft, it is only necessary to insert the elastic shaft into the two support rods 12231, without cumbersome operations, which improves the convenience of external diameter runout detection, and thus improves the efficiency of external diameter runout detection.

[0051] In addition to the above embodiments, this utility model also includes other implementation methods. All technical solutions formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of this utility model.

Claims

1. A testing device for machining an elastic shaft, comprising a testing seat (10), wherein a mounting seat (11) is slidably connected to the testing seat (10), the mounting seat (11) and the testing seat (10) are slidably connected in a left-right direction, and the mounting seat (11) is used to mount a dial indicator, characterized in that: The detection seat (10) is provided with a support mechanism (12); The support mechanism (12) includes a drive shaft (121) and multiple support components (122). The multiple support components (122) are distributed along the left and right direction. The drive shaft (121) is parallel to the left and right direction. A drive system is connected to the drive shaft (121). The drive system is used to realize the rotation of the drive shaft (121). The support assembly (122) includes a support base (1221), on which a connecting unit (1222) and two support units (1223) are provided. The two support units (1223) are arranged symmetrically front and back, and the two support units (1223) are connected through the connecting unit (1222). One of the two support units (1223) is connected to the drive shaft (121). The support unit (1223) includes a support rod (12231), which is arranged at an angle. One end of the support rod (12231) is hinged to the support base (1221) via a pin (12232). The pin (12232) is parallel to the left and right direction. Two support wheels (12233) are rotatably connected to the support rod (12231). The two support wheels (12233) are distributed along the length of the support rod (12231). The rotation center of the support wheel (12233) is parallel to the left and right direction. One of the support wheels (12233) is mounted on the drive shaft (121). The pin (12232) is connected to the connecting unit (1222), which is used to drive the pin (12232) to rotate.

2. The detection device for machining an elastic shaft according to claim 1, characterized in that: The two support rods (12231) in the same support assembly (122) are in an inverted V-shape.

3. The detection device for machining an elastic shaft according to claim 1, characterized in that: The support wheel (12233) is provided with anti-slip texture.

4. The detection device for machining an elastic shaft according to claim 1, characterized in that: The connecting unit (1222) includes a guide rod (12221), which is arranged vertically. Two support rods (12231) are symmetrical about the guide rod (12221). A connecting plate (12222) is fixedly installed at the bottom end of the guide rod (12221), and the connecting plate (12222) is fixedly installed on the support base (1221). The top end of the guide rod (12221) is fixedly installed on the limiting block (12223). A slider (12224) is movably connected to the guide rod (12221). The slider (12224) is connected to two first connecting rods (12225). The two first connecting rods (12225) correspond one-to-one with the two support rods (12231). One of the first connecting rods (12225) is connected to the two support rods (12231). The end slider (12224) is hinged, and the other end of the first connecting rod (12225) is connected to the pin (12232) through the second connecting rod (12226). The second connecting rod (12226) is arranged at an angle, and one end of the second connecting rod (12226) is fixedly set on the pin (12232). The other end of the second connecting rod (12226) is hinged to the first connecting rod (12225). The slider (12224) abuts against the limiting block (12223). A spring (12227) is sleeved on the guide rod (12221). The spring (12227) is located between the connecting plate (12222) and the slider (12224). The two ends of the spring (12227) are respectively fixedly connected to the connecting plate (12222) and the limiting block (12223).

5. The detection device for machining an elastic shaft according to claim 4, characterized in that: One end of the pin (12232) is provided with a slot (12228), and one end of the second connecting rod (12226) is inserted into the slot (12228). The second connecting rod (12226) is detachably and fixedly connected to the pin (12232) by a locking screw (12229).

6. The detection device for machining an elastic shaft according to claim 1, characterized in that: The top of the detection seat (10) is provided with a first sliding groove (13), which is parallel to the left and right direction. The bottom of the support seat (1221) is inserted into the first sliding groove (13), and the support seat (1221) and the first sliding groove (13) are slidably connected in the left and right direction.

7. The detection device for machining an elastic shaft according to claim 6, characterized in that: The first groove (13) is a dovetail groove.

8. The detection device for machining an elastic shaft according to claim 1, characterized in that: The number of the support components (122) is three.

9. The detection device for machining an elastic shaft according to claim 1, characterized in that: The top of the detection seat (10) is provided with two second slide grooves (14), which are distributed along the front-back direction and are parallel to the left-right direction. The bottom of the mounting seat (11) is provided with two connecting strips (15), which correspond one-to-one with the two second slide grooves (14) and are matched. The connecting strips (15) are inserted into the second slide grooves (14).

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