Device for detecting axial and radial precision of pipe rod

Abstract

The utility model relates to the technical field of shaft rod run-out detection, in particular to a pipe rod axial and radial precision detection device, which comprises a bottom table, a slide way groove is arranged on a table top at the top of the bottom table along the left-right direction, and a slide seat slides in the slide way groove; the middle part of the double-end screw rod is rotationally mounted on the sliding seat; the two sets of movable frames are symmetrically located on the two sides of the double-end lead screw and are in threaded connection with the double-end lead screw, meanwhile, a rotating cylinder rotationally penetrates through the two sets of movable frames, a chuck is fixedly installed on the side, close to the middle of the bottom table, of the rotating cylinder, and the chuck is used for clamping a tip or directly clamping a pipe rod. The fixing modes of the pipe rod are more diversified; and the two groups of rotary drums are linked through a transmission assembly, so that the technical effect that the pipe rod is rotated under the condition that the pipe rod is not in direct contact is achieved.

Description

Technical Field

[0001] This utility model relates to the field of shaft runout detection technology, specifically to a device for detecting the axial and radial accuracy of a pipe shaft. Background Technology

[0002] The axial and radial accuracy runout check of the tube rod is an important step in assessing its geometry and rotational quality. The tube rod is usually cylindrical in shape, and can be solid or hollow. Most tube rods have flat ends, while a small number of tube rods have convex arc-shaped ends (such as spherical ends).

[0003] Meanwhile, current tube rod axial and radial accuracy runout inspection devices mostly use the method of clamping the tube rod end with the center on the left and right sets of slides to fix the shaft. During axial inspection, the shaft is moved laterally by moving the slides, and during radial inspection, the tube rod is rotated by hand. Manual contact with the shaft may introduce additional external forces (such as pressure, friction or uneven torque), causing the shaft to deform or shake, affecting the measurement accuracy (such as CN220039293U).

[0004] The newly improved detection device can provide more modes for fixing the tube rod, and through structural design, it can be rotated without direct contact with the shaft rod. Utility Model Content

[0005] (a) Technical issues

[0006] The present invention aims to at least solve the problem that the fixing and rotation methods of pipe rods in the prior art need to be adjusted and improved.

[0007] (II) Technical Content

[0008] This solution provides a device for detecting the axial and radial accuracy of pipe rods, achieved through the following specific technical means: including...

[0009] A base platform has a slide groove on the top surface of the base platform, a slide block slides in the slide groove, and a fixing frame is fixed in the middle of the base platform.

[0010] A double-ended lead screw, with its central section rotatably mounted on a slide.

[0011] Two sets of movable frames are located on both sides of the double-ended lead screw and are threadedly connected to the double-ended lead screw. At the same time, a rotating cylinder is rotatably passed through the two sets of movable frames, and a chuck is installed on the rotating cylinder. The chuck can be used to clamp the tip or directly clamp the tube rod.

[0012] A transmission assembly is connected between the two sets of rotating drums to achieve synchronous rotation of the two sets of rotating drums.

[0013] Preferred technical solution 1: The transmission component includes a linkage shaft rotatably mounted on a fixed frame, with a movable sleeve slidably sleeved at both ends of the linkage shaft, and a transmission gear 1 fixedly sleeved on each set of movable sleeves. The movable sleeve is also rotatably installed through a mounting hole on a corresponding set of movable frames, and the transmission gear 1 meshes with a transmission gear 2 fixedly sleeved on the rotating drum.

[0014] Preferred technical solution 3: A vertical frame is fixed to the rear side of the fixed frame, and a top frame is detachably installed on the vertical frame. The top frame is used to install the runout detector, and the detection end of the runout detector contacts the tube rod during detection.

[0015] Preferred technical solution four: The clamping plate is an annular three-jaw clamping plate, and the central hole of the clamping plate coincides with the central hole axis of the rotating drum.

[0016] Preferred technical solution five: The double-ended lead screw, linkage shaft, slide groove and auxiliary support rod are parallel.

[0017] (III) Technical Effects

[0018] The above structure gives this solution the following advantages:

[0019] 1. By using the optional combination of rotating drum, clamp, and center, there are more ways to fix the pipe rod compared to the traditional single fixing method. The fixing method can be adjusted according to different types of pipe rods, such as structure or length.

[0020] 2. By utilizing the transmission component, the technical effect of manually rotating the tube rod during radial runout detection can be achieved without direct contact with the tube rod. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a schematic diagram of the overall structure of this solution;

[0023] Figure 2 This is a state diagram for the use of this solution;

[0024] Figure 3 This is a schematic diagram of the rotating drum and clamping plate in this scheme;

[0025] Figure 4 This is a schematic diagram of the base structure of this design;

[0026] Figure 5 This diagram shows the meshing state of transmission gear one and transmission gear two in this scheme.

[0027] Among them, 1. base platform, 101. slide groove, 2. slide seat, 201. double-ended lead screw, 3. movable frame, 4. rotating drum, 5. clamping plate, 6. center, 7. fixed frame, 8. transmission assembly, 801. linkage shaft, 802. movable sleeve, 803. transmission gear one, 804. transmission gear two, 9. auxiliary support rod, 10. vertical frame, 11. top frame, 12. tightening bolt, 13. runout detector. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0029] Please see Figures 1-3 The device for detecting the axial and radial accuracy of pipe rods includes a base platform 1. A slide groove 101 is provided on the top surface of the base platform 1 in the left and right direction. A slide seat 2 slides in the slide groove 101. A double-ended lead screw 201 is rotatably mounted on the slide seat 2 in the middle. A handwheel is installed at the end of the double-ended lead screw 201 to facilitate rotation of the double-ended lead screw 201.

[0030] It also includes two sets of movable frames 3, symmetrically located on both sides of the double-ended lead screw 201, and both are threadedly connected to the double-ended lead screw 201 through matching threaded holes. At the same time, a rotating cylinder 4 is rotatably passed through the two sets of movable frames 3, and a chuck 5 is fixedly installed on the side of the rotating cylinder 4 near the middle of the base 1 (the chuck 5 is preferably a ring-shaped three-jaw chuck 5 (manual or electric), and the center of the chuck 5 coincides with the center of the rotating cylinder 4, and the inner diameter of the rotating cylinder 4 is not less than the inner diameter of the chuck 5). The chuck 5 is used to clamp the tip 6 or directly clamp the tube rod. The setting of the rotating cylinder 4 can not only drive the chuck 5 to rotate on the rotating cylinder 4, but also allow the tube rod to pass directly through one set of rotating cylinder 4 and be clamped and fixed by the chuck 5 on the other set of rotating cylinder 4 when the tube rod is long. Thus, it can realize the clamping of the double-ended tip 6 of the tube rod (for hollow structures), the double-ended direct clamping with the chuck 5 (for radial detection only), or the single-ended clamping with the chuck 5 (for long lengths, or non-planar or non-hollow ends).

[0031] The two sets of rotating drums 4 are linked by a transmission assembly 8. That is, when the tube rod needs to be rotated, one of the rotating drums 4 is rotated. During the rotation, the power is synchronously transmitted to the other set of rotating drums 4 through the transmission assembly 8, which drives the other set of rotating drums 4 to rotate synchronously. This achieves the technical effect of rotating the tube rod without direct contact with it.

[0032] In one set of embodiments

[0033] Please see Figure 1 , Figure 2 , Figure 3 , Figure 5 A fixed frame 7 is fixed in the middle of the base 1. The transmission assembly 8 includes a linkage shaft 801 rotatably mounted on the fixed frame 7. A movable sleeve 802 is slidably sleeved at both ends of the linkage shaft 801 (that is, the movable sleeve 802 can only slide along the axial direction of the linkage shaft 801 through structural cooperation and cannot rotate relative to it). A transmission gear 803 is fixedly sleeved on each set of movable sleeves 802. The movable sleeve 802 rotatably passes through the mounting hole on the corresponding set of movable frames 3. At the same time, the transmission gear 803 meshes with the transmission gear 804 fixedly sleeved on the rotating drum 4. By using the sliding connection between the linkage shaft 801 and the movable sleeve 802, the technical effect of the synchronous rotation of the two sets of rotating drums 4 will not be affected when the relative positions of the two sets of movable frames 3 change. By using the linkage shaft and gear transmission, rotating one set of rotating drums 4 can synchronously drive the other set of rotating drums 4 to rotate.

[0034] In one set of embodiments

[0035] Please see Figure 1 , Figure 4 An auxiliary support rod 9 is also fixed on the fixed frame 7. Both sets of movable frames 3 are slidably sleeved on the auxiliary support rod 9. The auxiliary support rod 9 is used to provide auxiliary support for the movable frames 3.

[0036] The double-ended lead screw 201, linkage shaft 801, slide groove 101 and auxiliary support rod 9 are parallel, which further improves the stability of the movable frame 3 during movement.

[0037] In one set of embodiments

[0038] Please see Figure 1 , Figure 2 , Figure 4 A vertical frame 10 is fixed to the rear side of the fixed frame 7. A top frame 11 is detachably installed on the vertical frame 10 (the rear end of the top frame 11 is slidably sleeved on the vertical frame 10 and is pressed tightly onto the bookshelf by a tightening bolt 12 passing through the threaded hole on the top frame 11 to achieve the fixation of the top frame 11). The top frame 11 is used to detachably install the vibration detector 13 (selecting an existing product).

[0039] The detection end of the runout detector 13 is located directly above the center line of the two sets of clamps 5. By changing the installation position of the top frame 11 on the vertical frame 10, the detection end of the runout detector 13 is controlled to contact the pipe rod. After contact, the transverse slide 2 can drive the pipe rod to move laterally to perform circumferential runout detection; the radial runout of the pipe rod can be detected by rotating the rotating drum 4.

[0040] During use, this solution requires daily maintenance of each component according to the established maintenance plan to ensure its working condition.

[0041] The parts not disclosed in this utility model are all prior art, and their specific structures and working principles will not be described in detail.

[0042] Unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for detecting the axial and radial accuracy of a pipe rod, comprising a base (1), a slide groove (101) formed on the top surface of the base (1), a slide block (2) sliding in the slide groove (101), and a double-ended lead screw (201) rotatably mounted on the slide block (2), characterized in that: Also includes Two sets of movable frames (3) are threadedly connected to both sides of the double-ended lead screw (201); Rotary cylinders (4) are rotatably passed through both sets of movable frames (3), and a clamp (5) is fixedly installed on one side of the rotating cylinder (4) near the middle of the base (1). The clamp (5) is used to clamp the tip (6) or directly clamp the tube rod, which can pass through the rotating cylinder (4). The two sets of rotating drums (4) are synchronized during rotation via a transmission assembly (8).

2. The device for detecting the axial and radial accuracy of a pipe rod according to claim 1, characterized in that: A fixing frame (7) is fixed in the middle of the base (1); The transmission assembly (8) includes a linkage shaft (801) rotatably mounted on a fixed frame (7). A movable sleeve (802) is slidably sleeved at both ends of the linkage shaft (801). The movable sleeve (802) rotatably passes through the movable frame (3). Each set of movable sleeves (802) is fixedly sleeved with a transmission gear (803) that meshes with a transmission gear (804) fixedly sleeved on the rotating drum (4) on the movable frame (3).

3. The device for detecting the axial and radial accuracy of a pipe rod according to claim 2, characterized in that: A vertical frame (10) is fixed to the rear side of the fixed frame (7), and a top frame (11) is detachably installed on the vertical frame (10), and the top frame (11) is used to install the vibration detector (13). The detection end at the bottom of the vibration detector (13) is located directly above the center line of the two sets of clamps (5).

4. The device for detecting the axial and radial accuracy of a pipe rod according to claim 1, characterized in that: The central hole of the clamp (5) coincides with the central hole axis of the rotating cylinder (4).

5. The device for detecting the axial and radial accuracy of a pipe rod according to claim 2, characterized in that: The double-ended lead screw (201), linkage shaft (801), and slide groove (101) are parallel.

6. The device for detecting the axial and radial accuracy of a pipe rod according to claim 4, characterized in that: The inner diameter of the rotating drum (4) is not less than the inner diameter of the clamp (5).

Images