Clamping device for measuring three-dimensional size of crane hook

Abstract

The utility model discloses a clamping device for measuring the three-dimensional size of a crane hook. The clamping device comprises a clamping jaw structure and a fixed seat for supporting the clamping jaw structure, the clamping jaw structure comprises a rear seat, a supporting frame, a motor, a lead screw, a sliding block, two first connecting rods and a second connecting rod. Two sliding rails are symmetrically arranged on the rear seat, two guide blocks are arranged at the two ends of the supporting frame, and the output end of the motor is in transmission connection with the lead screw. A sliding groove is formed in the supporting frame, and the sliding block is in sliding connection with the sliding groove. A threaded hole in threaded connection with the lead screw is formed in the sliding block; one ends of the two first connecting rods are hinged to the sliding blocks; the other ends of the two first connecting rods are connected with one ends of second connecting rods; the two second connecting rods are symmetrically arranged on the supporting frame, and the middles of the two second connecting rods are hinged to the supporting frame. The other ends of the two second connecting rods are each provided with a clamping part, and the rear seat is fixedly connected with the fixing seat. According to the utility model, the lifting hook can be stably clamped so as to ensure that the lifting hook does not shake during detection.

Description

Technical Field

[0001] This utility model relates to the field of hook inspection, and in particular to a clamping device for measuring the three-dimensional dimensions of crane hooks. Background Technology

[0002] The hook is a key component of lifting machinery, and its structural safety performance directly affects the normal operation of the machinery. Therefore, the hook is a key inspection target for monitoring and scheduled maintenance. The main inspection items for hooks include surface cracks, torsional deformation, opening degree, and wear. However, on-site measurements may involve hook swaying, and on-site inspection suffers from drawbacks such as low efficiency, limited accuracy, strong subjectivity, and the tendency to overlook problems, failing to meet the safety and efficiency requirements of modern engineering.

[0003] Therefore, a clamping device for measuring the three-dimensional dimensions of crane hooks is needed to solve the above problems. Utility Model Content

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A clamping device for measuring the three-dimensional dimensions of a crane hook includes a jaw structure and a fixed base supporting the jaw structure;

[0006] The gripper structure includes a rear seat, a support frame, a motor, a lead screw, a slider, two first connecting rods, and a second connecting rod;

[0007] Two slide rails are symmetrically arranged on the rear seat, and two guide blocks are provided at both ends of the support frame. The two guide blocks are slidably connected to the two slide rails respectively. The motor is fixedly mounted on the support frame, and the output end of the motor is connected to the lead screw drive. The support frame is provided with a slide groove, and the slider is slidably connected to the slide groove. The slider is provided with a threaded hole that is threaded to the lead screw. One end of each of the two first connecting rods is hinged to the slider. The other end of each of the two first connecting rods is connected to one end of each of the second connecting rods. The two second connecting rods are symmetrically arranged on the support frame, and the middle part of each of the two second connecting rods is hinged to the support frame. The other end of each of the two second connecting rods is provided with a clamping part, and the rear seat is fixedly connected to the fixed seat.

[0008] Preferably, a rotating groove is provided on the second connecting rod, and the middle part of the clamping part is hinged in the rotating groove; a fixing pin is provided at the rear end of the clamping part and on the outer side of the second connecting rod, and the two ends of the first spring are respectively hinged to the fixing pins on the rear end of the clamping part and on the outer side of the second connecting rod.

[0009] Preferably, a limiting pin is provided on the inner side of the second connecting rod, which is used to limit the clamping part in the rotating groove.

[0010] Preferably, a rubber pad is provided on the inner side of one end of the clamping part.

[0011] Preferably, one end of the second connecting rod has a roughly Y-shaped plate structure, and the clamping part has a roughly √-shaped plate structure.

[0012] Preferably, a second pin is provided on each side of the rear seat, and a second pin is provided on each side of the support frame. Two second springs are respectively provided on each side of the support frame, and the two ends of the second springs are respectively connected to the second pins of the support frame and the rear seat.

[0013] Preferably, the cross-shaped base is made of aluminum profile and is used to fix it to the ground.

[0014] Preferably, the middle part of the clamping part is hinged in the rotating groove by a pin.

[0015] Preferably, the fixing base includes a column and a cross-shaped base; the lower end of the column is vertically fixed to the middle of the cross-shaped base, and the upper end of the column is connected to the rear seat.

[0016] Due to the adoption of the above technical solution, the technical progress achieved by this utility model compared with the prior art is as follows: This utility model can stably clamp the hook to ensure that the hook will not shake during the test, thereby improving the efficiency and accuracy of on-site testing and meeting the requirements of modern engineering for safety and efficiency.

[0017] Secondly, it has a buffer margin when fixing the hook, which protects the clamping device and the hook, and can also provide a constant clamping force to the hook to a certain extent. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the clamping device for measuring the three-dimensional dimensions of a crane hook according to the present invention;

[0020] Figure 2 This is a schematic diagram of the clamping device for measuring the three-dimensional dimensions of a crane hook according to the present invention;

[0021] Figure 3 This is a schematic diagram of the clamping device for measuring the three-dimensional dimensions of a crane hook according to the present invention;

[0022] Figure 4 This is a schematic diagram of the clamping state for measuring the three-dimensional dimensions of a crane hook, as described in this utility model.

[0023] Explanation of main component symbols

[0024]

[0025] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this utility model. Detailed Implementation

[0026] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the present invention. The terms "first," "second," etc., in the specification, claims, and accompanying drawings of the present invention are used to distinguish different objects and not to describe a particular order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to imply non-exclusive inclusion. For example, a process, method, system, product, or device that comprises a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0027] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0028] Please see Figure 1-4 This utility model provides a clamping device for measuring the three-dimensional dimensions of a crane hook, including a jaw structure 1 and a fixed base 2 that supports the jaw structure.

[0029] The gripper structure 1 includes a rear seat 11, a support frame 12, a motor 13, a lead screw 14, a slider 15, two first connecting rods 16, and a second connecting rod 17;

[0030] Two slide rails 111 are symmetrically arranged on the rear seat 11. Two guide blocks 211 are provided at both ends of the support frame 12, and the two guide blocks 211 are slidably connected to the two slide rails 111 respectively. The motor 13 is fixedly mounted on the support frame 12, and the output end of the motor is connected to the lead screw drive. The support frame 12 is provided with a slide groove 121, and the slider 15 is slidably connected to the slide groove 121. The slider 15 is provided with a threaded hole that is threadedly connected to the lead screw 14. One end of the two first connecting rods 16 is respectively hinged to the slider 15. The other end of the two first connecting rods 16 is respectively connected to one end of the second connecting rod 17. The two second connecting rods 17 are symmetrically arranged on the support frame 12, and the middle part of the two second connecting rods 17 is hinged to the support frame 12. The other end of the two second connecting rods 17 is respectively provided with a clamping part 18. The rear seat 11 is fixedly connected to the fixed seat 2.

[0031] In one embodiment of the present invention, a rotating groove 171 is provided on the second connecting rod 17, and the middle part of the clamping part is hinged in the rotating groove; a fixing pin 172 is provided at the rear end of the clamping part and on the outer side of the second connecting rod, and the two ends of the first spring 173 are respectively hinged to the fixing pin 173 at the rear end of the clamping part and on the outer side of the second connecting rod.

[0032] In one embodiment of the present invention, a limiting pin 174 is provided on the inner side of the second connecting rod 17, and the limiting pin is used to limit the clamping part in the rotating groove.

[0033] In one embodiment of this utility model, a rubber pad 175 is provided on the inner side of one end of the clamping part; the rubber pad can play an anti-slip role when the clamping part fixes the hook, and can also play a certain buffering role.

[0034] In one embodiment of this utility model, one end of the second connecting rod is generally Y-shaped plate structure, and the clamping part 18 is generally √-shaped plate structure.

[0035] In one embodiment of this utility model, second pins 110 are respectively provided on both sides of the rear seat 11, and second pins 110 are respectively provided on both sides of the support frame 12. Two second springs 19 are respectively provided on both sides of the support frame 12, and the two ends of the second springs 19 are respectively connected to the second pins 110 of the support frame 12 and the rear seat 11. The second springs 19 play a longitudinal buffering role.

[0036] In one embodiment of this utility model, the cross-shaped base 22 is made of aluminum profile and is used to fix it to the ground.

[0037] In one embodiment of this utility model, the middle part of the clamping part is hinged in the rotating groove by a pin.

[0038] In one embodiment of the present invention, the fixing base 2 includes a column 21 and a cross-shaped base 22; the lower end of the column 21 is vertically fixedly connected to the middle part of the cross-shaped base 22, and the upper end of the column 21 is connected to the rear seat 11.

[0039] In use, the clamping device is moved to the side of the hook to be tested, so that the hook is positioned between the two clamping parts 18. The rotation of the motor 13 drives the lead screw 14 to rotate, which in turn causes the slider 15 to move closer to or away from the motor. Please refer to [link to previous text]. Figure 4 When slider 15 moves to the end away from motor 13 (e.g.) Figure 4 As shown in a), the two clamping parts 18 are not clamped; when the slider 15 approaches one end of the motor 13, the two clamping parts 18 slowly clamp. Figure 4 Figure b shows the state of the two clamping parts 18 when the clamping is at its tightest. The hook 3 is clamped by the two clamping parts 18.

[0040] Secondly, the clamping part 18 is a connecting rod, which is connected to the second connecting rod 17 via a first spring 173. The second connecting rod 17 is hinged to the clamping part 18, forming a large connecting rod together. The first spring 173 provides a lateral buffer margin for the clamping part 18 when fixing the hook, protecting the clamping device and the hook 3. To a certain extent, it can also provide a constant clamping force to the hook 3. After the hook 3 is clamped, a three-dimensional inspection device can be used to perform corresponding inspections on the hook.

[0041] In one embodiment of the present invention, the three-dimensional detection device includes a three-dimensional scanner and a robotic arm; the three-dimensional scanner is installed at the end of the robotic arm, and the robotic arm is used to drive the three-dimensional scanner to scan and measure the hook.

[0042] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A clamping device for measuring the three-dimensional dimensions of a crane hook, characterized in that: Includes a gripper structure and a mounting base that supports the gripper structure; The gripper structure includes a rear seat, a support frame, a motor, a lead screw, a slider, two first connecting rods, and a second connecting rod; Two slide rails are symmetrically arranged on the rear seat, and two guide blocks are provided at both ends of the support frame. The two guide blocks are slidably connected to the two slide rails respectively. The motor is fixedly mounted on the support frame, and the output end of the motor is connected to the lead screw drive. The support frame is provided with a slide groove, and the slider is slidably connected to the slide groove. The slider is provided with a threaded hole that is threaded to the lead screw. One end of each of the two first connecting rods is hinged to the slider. The other end of each of the two first connecting rods is connected to one end of each of the second connecting rods. The two second connecting rods are symmetrically arranged on the support frame, and the middle part of each of the two second connecting rods is hinged to the support frame. The other end of each of the two second connecting rods is provided with a clamping part, and the rear seat is fixedly connected to the fixed seat.

2. The clamping device for measuring the three-dimensional dimensions of a crane hook as described in claim 1, characterized in that: A rotating groove is provided on the second connecting rod, and the middle part of the clamping part is hinged in the rotating groove; a fixing pin is provided at the rear end of the clamping part and on the outside of the second connecting rod, and the two ends of the first spring are respectively hinged to the fixing pins on the rear end of the clamping part and on the outside of the second connecting rod.

3. The clamping device for measuring the three-dimensional dimensions of a crane hook as described in claim 2, characterized in that: A limiting pin is provided on the inner side of the second connecting rod, which is used to limit the clamping part in the rotating groove.

4. The clamping device for measuring the three-dimensional dimensions of a crane hook as described in claim 3, characterized in that: A rubber pad is provided on the inner side of one end of the clamping part.

5. The clamping device for measuring the three-dimensional dimensions of a crane hook as described in claim 4, characterized in that: A second pin is provided on each side of the rear seat, and a second pin is provided on each side of the support frame. Two second springs are respectively provided on each side of the support frame, and the two ends of the second springs are respectively connected to the second pins of the support frame and the rear seat.

6. The clamping device for measuring the three-dimensional dimensions of a crane hook as described in claim 5, characterized in that: The mounting base includes a column and a cross-shaped base; the lower end of the column is vertically fixed to the middle of the cross-shaped base, and the upper end of the column is connected to the rear seat.

7. The clamping device for measuring the three-dimensional dimensions of a crane hook as described in claim 1, characterized in that: The second link has a roughly Y-shaped plate structure at one end and a roughly √-shaped plate structure at the clamping part.

8. The clamping device for measuring the three-dimensional dimensions of a crane hook as described in claim 1, characterized in that: The cross-shaped base is made of aluminum profile and is used to fix it to the ground.

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