Sampling assembly

Abstract

The utility model discloses a sampling assembly. The sampling assembly comprises a mounting plate, a clamping unit, a connecting rod mechanism and a driving mechanism, wherein a connecting part is arranged on one side of the mounting plate; the clamping units are arranged in pairs and are symmetrically connected to the other side of the mounting plate; the connecting rod mechanism is used for connecting the two clamping units; the driving mechanism is mounted on the mounting plate; the free end of the driving mechanism is connected with the connecting rod mechanism; and at least one of the clamping units can rotate towards the center of the length or the width of the mounting plate under the action of the connecting rod mechanism and the driving mechanism, so that the two clamping units are close to each other or far away from each other. Columnar components such as reinforcing steel bars can be grabbed, and stress is even.

Description

Technical Field

[0001] The utility model belongs to the technical field of engineering detection equipment, and particularly relates to a sampling assembly. Background Art

[0002] Steel bars are widely used in the construction of building structures and can be used to make support structures such as steel bar skeletons. In order to ensure the load-bearing capacity of building structures, it is necessary to sample the used steel bars and conduct performance tests such as tensile and cold bending tests.

[0003] Chinese Utility Model Patent CN219245027U discloses a detection sampler, which includes a fixed cutting seat, a movable cutting seat, a first positioning mechanism and a second positioning mechanism. On the upper end of one side of the movable cutting seat close to the fixed cutting seat, two symmetrically distributed movable plates are fixed. The movable plates movably penetrate through the fixed cutting seat and are locked by a knob on the top of the fixed cutting seat; the fixed cutting seat and the movable cutting seat are used to cut off the steel bars to be sampled; the first positioning mechanism is fixed on the side of the fixed cutting seat away from the movable cutting seat

[0004] With further research by the applicant, it is found that due to the structural defects in the steel bar grasping mechanism in this technical solution, there is a situation where the steel bar clamping is unstable and easy to shake, and it is not suitable for sampling and grasping of columnar objects. Summary of the Utility Model

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A sampling assembly, comprising:

[0007] A mounting plate with a connecting part provided on one side;

[0008] Clamping units, arranged in pairs and symmetrically connected to the other side of the mounting plate;

[0009] A link mechanism for connecting the two clamping units;

[0010] A driving mechanism installed on the mounting plate, and the free end of the driving mechanism is connected to the link mechanism;

[0011] Under the action of the link mechanism and the driving mechanism, at least one of the clamping units can rotate towards the center of the length or width of the mounting plate, so that the two clamping units approach or move away from each other;

[0012] The clamping unit includes a rotating shaft and a clamping head sleeved on the outer periphery of the rotating shaft. The link mechanism includes a swing arm sleeved on the rotating shaft and a hinge rod connecting the swing arms on the same side.

[0013] Further, the front end of the clamping head has an arc-shaped edge, and a plurality of tooth grooves are arranged along the arc-shaped edge on the clamping head.

[0014] Further, an arc-shaped groove is formed on the arc-shaped edge.

[0015] Further, bearing seats are symmetrically arranged on the mounting plate.

[0016] Further, synchronization blocks are arranged on both sides of the swing arm. One end of the synchronization block is sleeved on the rotating shaft, and the other end is connected to the swing arm.

[0017] Further, the driving mechanism includes a cylinder.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] By adopting the connection form of the linkage mechanism in cooperation with the drive, the paired clamping heads can be driven simultaneously, realizing the grasping of cylindrical members such as steel bars, and the force is evenly distributed. Since the clamping head is provided with an arc-shaped edge, after the steel bar is clamped and grasped, it is not easy to shake and fall off, with good stability and strong adaptability, and is suitable for grasping steel bars of various outer diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a three-dimensional structural diagram (view angle one) of an embodiment of a sampling component of the utility model;

[0021] Figure 2 is a three-dimensional structural diagram (view angle two) of an embodiment of a sampling component of the utility model;

[0022] Figure 3 is a front view structural diagram of an embodiment of a sampling component of the utility model;

[0023] Figure 4 is a three-dimensional structural diagram of a clamping unit in an embodiment of the utility model;

[0024] The reference numerals in the accompanying drawings of the specification include:

[0025] Mounting plate 1, connecting portion 2, clamping unit 3, rotating shaft 30, clamping head 31, arc-shaped edge 310, tooth groove 311, arc-shaped groove 312, swing arm 320, hinge rod 321, bearing seat 33, synchronization block 34, driving mechanism 4. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] In order to enable those skilled in the art to better understand the present utility model, the technical solutions of the present utility model will be further described below with reference to the accompanying drawings and embodiments.

[0027] Among them, the attached drawings are only for illustrative purposes, showing only schematic diagrams rather than physical diagrams, and should not be construed as a limitation to this patent; in order to better illustrate the embodiments of the present utility model, some components in the attached drawings will be omitted, enlarged or reduced, which do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the attached drawings may be omitted. The same or similar reference numerals in the attached drawings of the embodiments of the present utility model correspond to the same or similar components; in the description of the present utility model, it should be understood that if terms such as "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the attached drawings, and 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. Therefore, the terms used to describe the positional relationship in the attached drawings are only for illustrative purposes and should not be construed as a limitation to this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0028] As Figure 1 - Figure 4 shown, a sampling assembly of the present utility model includes a mounting plate 1, a clamping unit 3, a link mechanism, and a driving mechanism 4;

[0029] Among them, a connecting portion 2 is provided on one side of the mounting plate 1;

[0030] The clamping units 3 are arranged in pairs and symmetrically connected to the other side of the mounting plate 1;

[0031] The link mechanism is used to connect the two clamping units 3;

[0032] The driving mechanism 4 is mounted on the mounting plate 1, and the free end of the driving mechanism 4 is connected to the link mechanism;

[0033] Under the action of the link mechanism and the driving mechanism 4, at least one of the clamping units 3 can rotate towards the center of the length or width of the mounting plate 1, so that the two clamping units 3 approach or move away from each other;

[0034] Specifically, the clamping unit 3 includes a rotating shaft 30 and a clamping head 31 sleeved on the outer periphery of the rotating shaft 30. The link mechanism includes a swing arm 320 sleeved on the rotating shaft 30 and a hinge rod 321 connecting the swing arms 320 on the same side. Among them, the free ends of the swing arms 320 on the same side in the two clamps are arranged in a mirror-inverse direction.

[0035] By adopting the connection form of the cooperation between the link mechanism and the drive, the paired clamping heads 31 can be driven simultaneously to realize the grasping of columnar members, such as steel bars, with uniform force.

[0036] In addition, the front end of the clamping head 31 has an arc-shaped edge 310. A number of tooth grooves 311 are arranged along the arc-shaped edge 310 on the clamping head 31. The arrangement of the tooth grooves 311 can increase the friction force.

[0037] It should be noted that the surface of the clamping head 31 where the tooth grooves 311 are arranged can be coated with a buffer layer. The buffer layer is made of materials with a buffering effect such as rubber materials, which can reduce the damage to the steel bars.

[0038] Due to the adoption of the arc-shaped edge 310 for the clamping head 31, after the steel bar is clamped and grabbed, it is not easy to shake and fall off, has good stability, strong adaptability, and is suitable for grabbing steel bars of various outer diameters.

[0039] Among them, an arc-shaped groove 312 is arranged on the arc-shaped edge 310.

[0040] Bearing seats 33 are symmetrically arranged on the mounting plate 1.

[0041] To increase the connectivity between the clamping head 31 and the rotating shaft 30, synchronizing blocks 34 are arranged on both sides of the swing arm 320. One end of the synchronizing block 34 is sleeved on the rotating shaft 30, and the other end is connected to the swing arm 320.

[0042] When using this sampling assembly, through the connecting part 2, this assembly is connected to an existing robotic arm. The connection method of the above-mentioned robotic arm can use existing technologies and is also easy to implement, which does not belong to the protection scope of this application. Therefore, it has at least the beneficial effects brought by the technical solutions of the above-mentioned embodiments and will not be elaborated here.

[0043] The above-mentioned fixed connection without specific designation can be connection methods such as riveting, welding, and bolt connection, and the movable connection can be connection methods such as hinge connection.

[0044] The above are only the embodiments of the present utility model. Common general knowledge such as specific structures and characteristics in the solutions is not described in detail here. Those of ordinary skill in the art know all the common general knowledge in the technical field to which the utility model belongs before the application date or the priority date, can know all the existing technologies in this field, and have the ability to use conventional experimental means before this date. Those of ordinary skill in the art can, under the inspiration given by this application, combine their own abilities to complete and implement this solution. Some typical well-known structures or well-known methods should not become an obstacle for those of ordinary skill in the art to implement this application. It should be noted that for those skilled in the art, without departing from the structure of the present utility model, several deformations and improvements can still be made, and these should also be regarded as the protection scope of the present utility model, and these will not affect the implementation effect of the present utility model and the practicality of the patent.

Claims

1. A sampling assembly, characterized in that: include: A mounting plate having a connecting portion disposed on one side; The clamping units are arranged in pairs and symmetrically connected to the other side of the mounting plate; A connecting rod mechanism, used to connect the two clamping units; A driving mechanism is mounted on the mounting plate, wherein a free end of the driving mechanism is connected to a connecting rod mechanism; Under the action of the connecting rod mechanism and the driving mechanism, at least one of the clamping units can rotate toward the length or width center of the mounting plate, so that the two clamping units are moved closer to or farther from each other; The clamping unit comprises a rotating shaft and a clamping head sleeved on the outer periphery of the rotating shaft, and the connecting rod mechanism comprises a swing arm sleeved on the rotating shaft and a hinge rod connecting the swing arms on the same side.

2. A sampling assembly according to claim 1, characterized in that: The front end of the clamping head has an arc-shaped edge, and the clamping head is provided with a plurality of tooth grooves along the setting direction of the arc-shaped edge.

3. A sampling assembly according to claim 2, characterized in that: An arc-shaped groove is provided on the arc-shaped edge.

4. A sampling assembly according to claim 3, characterized in that: The mounting plate is symmetrically provided with bearing seats.

5. A sampling assembly according to claim 1, 2, 3 or 4, characterized in that: Synchronous blocks are arranged on both sides of the swing arm, one end of the synchronous block is sleeved on the rotating shaft, and the other end is connected to the swing arm.

6. A sampling assembly according to claim 5, characterized in that: The driving mechanism includes a cylinder.

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