Positioning device for cutting plastic core barrel

Abstract

The positioning device comprises a groove body, a lower clamping plate and side clamping plates, a supporting plate is installed at the bottom of the groove body, electric telescopic rods are installed on the two sides of the groove body, and the side clamping plates are installed at the piston ends of the electric telescopic rods. By arranging the servo motor, the gear transmission assembly, the ejector rod, the lower clamping plate, the side clamping plate and the electric telescopic rod, the electric telescopic rod can drive the side clamping plate to clamp the plastic core barrel from the side face of the plastic core barrel, and the servo motor can drive the ejector rod to move upwards or downwards through the gear transmission assembly; further, the ejector rod drives the lower clamping plate to move to be matched with the two side clamping plates to position the plastic core barrel, the situation that the cutting accuracy is affected due to movement of the plastic core barrel during cutting is prevented, the side clamping plates and the lower clamping plate can be adjusted, and positioning of the plastic core barrels of various sizes can be achieved; and therefore, plastic core barrels of different sizes can be conveniently cut, the application range is wide, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field, in particular to a positioning device for cutting a plastic core tube. Background Art

[0002] A core tube, also known as a core sampling tube, is a tool that uses mechanical drilling to drill into rock formations and collect rock samples. It uses a drill rod as a guide and takes out rock samples by cutting rocks. These samples can provide geological and physical data of oil deposits, which can help explorers evaluate the exploration potential, reserves and production of oil resources, and provide a scientific basis for the development of oil fields. In addition, core tubes also have important applications in the field of construction engineering. In construction engineering, in order to ensure the safety and stability of buildings, it is necessary to test and evaluate the bearing capacity of the foundation. Core tubes can collect underground soil and rock samples at a certain depth, and by analyzing the physical and mechanical properties of core samples, the stability of geological structures can be evaluated, providing a scientific basis for construction engineering.

[0003] Core tubes are divided into steel core tubes, polyurethane plastic core tubes and polyester glass fiber core tubes. Polyurethane, as a new type of core tube material, has many advantages over steel, such as being lighter, more convenient to carry and use, and easy to maintain. It has gradually been widely used in actual production. At present, when cutting and extracting rocks from polyurethane plastic core tubes, it is necessary to position the plastic core tube first to prevent the plastic core tube from shaking during cutting and affecting the cutting quality. After searching, the patent authorization announcement number is CN 217529434 U discloses an automatic positioning core barrel cutting device, which records "including a workbench and a left side plate, a right side plate, a front side plate, and a rear side plate fixed on the workbench, the lower parts of the left side plate, the right side plate, the front side plate, the rear side plate and the workbench table form a cutting box, the lower parts of the left side plate and the right side plate are respectively installed with a first telescopic mechanism and a second telescopic mechanism, the first telescopic mechanism and the second telescopic mechanism are used to clamp the core barrel placed in the cutting box". From the above and in combination with its accompanying drawings, it can be seen that the above-mentioned existing technology drives the left and right side plates respectively to clamp and position the core barrel from both ends through two telescopic mechanisms, but when it is applied to plastic core tubes (the hardness of plastic core tubes is much smaller than that of steel core tubes), when the clamping force is too large, it is easy to cause the plastic core tube to deform, resulting in the destruction of its internal core structure. For this reason, we design a positioning device that can be used for plastic core tube cutting. Utility Model Content

[0004] The utility model aims to provide a positioning device for cutting a plastic core tube, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A positioning device for cutting plastic core tubes comprises a trough body, a lower clamping plate and side clamping plates, a support plate is installed at the bottom of the trough body, electric telescopic rods are installed on both sides of the trough body, side clamping plates are installed at the piston end of the electric telescopic rod, a lower clamping plate is arranged inside the trough body, a push rod is installed at the bottom of the lower clamping plate, the push rod passes through the trough body downward, a rotating shaft is installed between the two support plates, one end of the rotating shaft is connected to the output shaft of a servo motor installed on the support plate through a coupling, a gear transmission assembly is installed between the rotating shaft and the push rod, the gear transmission assembly comprises a gear cover, a gear and teeth, a gear and teeth are arranged inside the gear cover, the teeth are installed on the push rod, the gear is installed on the rotating shaft, the gear is meshed with the teeth, and the gear cover is connected to the support plates on both sides.

[0007] As a further solution of the utility model: a V-shaped clamping groove is provided at the upper end of the lower clamping plate.

[0008] As a further solution of the utility model: a slag discharge hole is opened on the bottom surface of the trough body.

[0009] As a further solution of the utility model: the upper surface of the side clamping plate is provided with length scale lines.

[0010] As a further solution of the utility model: guide grooves are provided at both ends of the side clamping plates, and the guide grooves are slidably connected to guide rails installed on the inner wall of the groove body.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model is provided with a servo motor, a gear transmission assembly, a push rod, a lower clamping plate, a side clamping plate, and an electric telescopic rod. The electric telescopic rod can drive the side clamping plate to clamp the plastic core tube from the side. The servo motor can drive the push rod to move upward or downward through the gear transmission assembly, and then drive the lower clamping plate to move through the push rod to cooperate with the clamping plates on both sides to position the plastic core tube, so as to prevent the plastic core tube from moving during cutting and affecting the cutting accuracy. The side clamping plates clamp the sides of the core tube from both sides of the core tube. The contact area between the side clamping plates and the core tube is larger than that of some of the comparative documents mentioned in the background technology. Even if the clamping force is large, the force per unit area of ​​the core tube is smaller than that per unit area in the comparative documents. Therefore, the utility model is not easy to damage the plastic core tube.

[0013] 2. The utility model can realize the positioning of plastic core tubes of various sizes by arranging the side clamping plates and the lower clamping plates, thereby facilitating the cutting of plastic core tubes of different sizes, having a wide range of applications and strong practicality.

[0014] 3. The utility model provides a length scale line on the side clamping plate, and the length scale line combined with the side clamping plate can serve as a ruler, which is convenient for personnel to measure the length of the plastic core tube, core or other related products, thereby enriching the function of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front cross-sectional view of a positioning device for cutting plastic core tubes.

[0016] Figure 2 The figure is a schematic diagram of the three-dimensional structure of a positioning device for cutting a plastic core tube.

[0017] Figure 3 A positioning device for cutting plastic core tubes Figure 1 Internal structure diagram of the gear transmission assembly.

[0018] 1. Trough body; 2. Support plate; 3. Lower clamping plate; 4. Push rod; 5. Gear transmission assembly; 501. Gear cover; 502. Gear; 503. Tooth; 6. Rotating shaft; 7. Servo motor; 8. Electric telescopic rod; 9. Side clamping plate; 10. Length scale line; 11. Guide rail; 12. Slag discharge hole. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-2 In the embodiment of the utility model, a positioning device for cutting a plastic core tube comprises a trough body 1, a lower clamping plate 3 and a side clamping plate 9. A support plate 2 is installed at the bottom of the trough body 1, and electric telescopic rods 8 are installed on both sides of the trough body 1. The piston end of the electric telescopic rod 8 is installed with a side clamping plate 9. The upper surface of the side clamping plate 9 is provided with a length scale line 10. The setting of the length scale line 10 can facilitate personnel to measure the length of the core tube, core and other related products, enriching the function of the utility model. Guide grooves are opened at both ends of the side clamping plate 9, and the guide grooves are slidably connected to the guide rails 11 installed on the inner wall of the trough body 1. This design can prevent the side clamping plate 9 from being unstable during the adjustment process.

[0021] See also Figure 1 and Figure 3A lower clamping plate 3 is arranged inside the trough body 1, and a push rod 4 is installed at the bottom of the lower clamping plate 3. The push rod 4 penetrates the trough body 1 downwardly. A rotating shaft 6 is installed between the two support plates 2. One end of the rotating shaft 6 is connected to the output shaft of the servo motor 7 installed on the support plate 2 through a coupling. A gear transmission assembly 5 is installed between the rotating shaft 6 and the push rod 4. The gear transmission assembly 5 includes a gear cover 501, a gear 502 and a tooth 503. The gear cover 501 is provided with a gear 502 and a tooth 503. The tooth 503 is installed on the push rod 4, and the gear 502 is installed on the rotating shaft 6. The gear 502 is meshed with the tooth 503. The gear cover 501 is connected to the support plates 2 on both sides. A V-shaped clamping groove is opened at the upper end of the lower clamping plate 3. This design can prevent the core tube from shaking left and right and better limit the core tube.

[0022] See also Figure 1 A slag discharge hole 12 is provided on the bottom surface of the tank body 1 to facilitate personnel to quickly pour out the debris generated by cutting in the tank body 1.

[0023] It should be noted that the servo motor 7 and the electric telescopic rod 8 in the present invention are both electrically connected to an external power source.

[0024] The working principle of the utility model is:

[0025] When in use, the plastic core tube is first placed on the lower clamping plate 3 in the trough body 1, and then the servo motor 7 is started to drive the gear 502 to rotate through the rotating shaft 6, and the gear 502 is engaged with the teeth 503 on the push rod 4 to drive the push rod 4 to move upward, and the push rod 4 pushes the plastic core tube to move upward through the lower clamping plate 3, so that the plastic core tube partially extends out of the trough body 1 (it is convenient for the cutting equipment to cut the plastic core tube. The cutting equipment can be a cutting machine or a planer. The plastic core tube can be cut flatly with the planer into two parts, and the upper part can be opened to expose the entire tube of core), and then the electric telescopic rod 8 is started. The electric telescopic rod 8 is extended to drive the side clamping plates 9 to clamp the plastic core tube from both sides of the plastic core tube. In this way, the positioning of the plastic core tube can be achieved, which is convenient for the subsequent cutting of the plastic core tube.

[0026] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A positioning device for cutting a plastic core tube, comprising a trough body (1), a lower clamping plate (3) and a side clamping plate (9), characterized in that: A support plate (2) is installed at the bottom of the trough body (1), electric telescopic rods (8) are installed on both sides of the trough body (1), and side clamps (9) are installed at the piston ends of the electric telescopic rods (8). A lower clamp (3) is arranged inside the trough body (1), and a push rod (4) is installed at the bottom of the lower clamp (3), and the push rod (4) passes through the trough body (1) downward. A rotating shaft (6) is installed between the two supporting plates (2), and one end of the rotating shaft (6) is connected to the output shaft of a servo motor (7) installed on the supporting plate (2) through a coupling. A gear transmission assembly (5) is installed between the rotating shaft (6) and the push rod (4), the gear transmission assembly (5) comprising a gear cover (501), a gear (502) and teeth (503), the gear cover (501) is provided with a gear (502) and teeth (503), the teeth (503) are installed on the push rod (4), the gear (502) is installed on the rotating shaft (6), the gear (502) is meshed with the teeth (503), and the gear cover (501) is connected to the support plates (2) on both sides.

2. A positioning device for cutting a plastic core tube according to claim 1, characterized in that: A V-shaped clamping groove is provided at the upper end of the lower clamping plate (3).

3. A positioning device for cutting a plastic core tube according to claim 1, characterized in that: The bottom surface of the tank body (1) is provided with a slag discharge hole (12).

4. A positioning device for cutting a plastic core tube according to claim 1, characterized in that: The upper surface of the side clamping plate (9) is provided with length scale lines (10).

5. A positioning device for cutting a plastic core tube according to claim 1, characterized in that: Guide grooves are provided at both ends of the side clamping plate (9), and the guide grooves are slidably connected to guide rails (11) installed on the inner wall of the groove body (1).

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