Concrete detection sample grinding device

Abstract

The utility model discloses a concrete detection sample polishing device which comprises a base, two groups of clamping mechanisms and a polishing mechanism are fixedly arranged at the top of the base, each group of clamping mechanism comprises a mounting frame and two moving plates, the mounting frame is fixedly arranged at the top of the base and is provided with a through mounting channel, and the two moving plates are arranged on the mounting channel. The two moving plates are symmetrically arranged in the mounting channel and can move up and down relative to the mounting frame, V-shaped clamping plates are rotationally arranged on the sides, close to each other, of the two moving plates, the two sets of grinding mechanisms are symmetrically arranged and located on the sides, away from each other, of the two clamping mechanisms correspondingly, and each set of grinding mechanism comprises a first motor and a grinding piece; the grinding piece is fixedly arranged on an output shaft of the first motor in a sleeving mode, and the first motor can slide in the transverse direction relative to the base. By means of the arrangement, the double-end-face grinding device can grind the double end faces of a cylindrical or circular-truncated-cone-shaped concrete detection sample, and the grinding efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of grinding equipment, and in particular relates to a concrete testing sample grinding device. Background Art

[0002] Concrete test samples are an important basis for evaluating the quality of concrete. By testing the concrete test samples, the quality of concrete can be inspected and evaluated. Some testing experiments require grinding of the concrete test samples, so it is necessary to provide a device that can grind concrete test samples.

[0003] A Chinese patent with publication number CN219212545U discloses a double-end surface grinder for long cylindrical specimens of rock or concrete. The scheme includes a base, a bearing platform is installed on the base, a V-shaped clamping platform is provided on the bearing platform, and a clamping plate is provided above the bearing platform. Motors are respectively provided on the left and right sides of the bearing platform, and a grinding plate is provided on the output shaft of the motor. The above scheme places the specimen on the V-shaped clamping platform, and uses the clamping plate to press the specimen to prevent it from shifting during the grinding process. The motors on the left and right sides of the specimen are respectively operated to grind the double end surfaces of the specimen at the same time, thereby improving the grinding efficiency.

[0004] In actual work, it is necessary to make samples according to specific experimental equipment. For example, when conducting experiments on the anti-permeability performance of concrete, it is generally necessary to use truncated cone-shaped samples. When the above scheme is used, if the truncated cone-shaped sample is fixed on a V-shaped clamping table, there is an angle between the axis of the sample and the axis of the grinding disc, resulting in the above scheme only being able to grind cylindrical samples, and the applicable scenarios are relatively limited. Utility Model Content

[0005] The utility model aims to provide a concrete testing sample grinding device to solve the problem that the application scenarios of the above-mentioned solution are relatively limited.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A concrete test sample grinding device comprises a base, wherein a clamping mechanism and a grinding mechanism are fixedly arranged on the top of the base, wherein the clamping mechanism is symmetrically arranged in two groups, each group of the clamping mechanism comprises a mounting frame and two movable plates, the mounting frame is fixedly arranged on the top of the base, and the mounting frame has a through mounting channel, the two movable plates are symmetrically arranged in the mounting channel, and can respectively move up and down relative to the mounting frame, and a V-shaped clamping plate is rotatably arranged on one side of the two movable plates close to each other, the grinding mechanism is symmetrically arranged in two groups, and is respectively located on the side of the two clamping mechanisms away from each other, each group of the grinding mechanism comprises a first motor and a grinding sheet, the grinding sheet is fixedly sleeved on the output shaft of the first motor, and the first motor can slide laterally relative to the base.

[0008] The principle and effect of this technical solution:

[0009] Before starting to grind, move the two movable plates of each clamping mechanism to the upper and lower ends of the installation channel respectively, place the concrete test sample to be grinded horizontally in the installation channel, and at the same time move the two symmetrically arranged movable plates toward each other so that the clamping plates rotatably connected to the movable plates are pressed against the side walls of the concrete test sample. When the concrete test sample is truncated cone-shaped, after each clamping plate contacts the side walls of the concrete test sample, continue to move the movable plate, each clamping plate rotates relative to the movable plate, and respectively presses against the side walls of the concrete test sample. At this time, each clamping plate cannot continue to rotate, and the axis of the concrete test sample is horizontal. Move the first motor so that the grinding sheet contacts the end face of the concrete test sample and grinds it.

[0010] Through the above-mentioned arrangement, the device can clamp the truncated cone-shaped concrete test sample and ensure that the axis of the concrete test sample is horizontal, thereby making the axis of the concrete test sample perpendicular to the grinding sheet, so that the utility model can grind the double end faces of the cylindrical or truncated cone-shaped concrete test sample, thereby improving the grinding efficiency and solving the problem of the limited applicable scenarios of the above-mentioned scheme.

[0011] In the utility model, the clamping mechanism also includes a driving assembly, which includes a second motor and a bidirectional screw. The bidirectional screws are provided in two and are respectively inserted into the two ends of the mounting frame along the vertical rotation. The two ends of the two movable plates are respectively fitted on the two bidirectional screws and are respectively symmetrically arranged on the positive and negative thread sections of the bidirectional screws. The two bidirectional screws are connected by a transmission assembly. The second motor is fixedly arranged on the top of the mounting frame, and the output shaft of the second motor is connected to one of the bidirectional screws.

[0012] In the utility model, the transmission assembly includes a pulley and a transmission belt. The pulleys are provided in two numbers and are respectively fixedly sleeved on the bottoms of the two bidirectional screws, and the transmission belt is wound around the two pulleys.

[0013] The principle and effect of this technical solution:

[0014] The second motor is driven to drive one of the bidirectional screws to rotate, and the bidirectional screw drives the other bidirectional screw to rotate through the pulley and the transmission belt. The two moving plates move towards or away from each other as the bidirectional screws rotate.

[0015] Through the above arrangement, the purpose of simultaneously moving the two symmetrically arranged moving plates is achieved, ensuring that the axis of the device is horizontal when clamping the concrete test sample.

[0016] In the utility model, the grinding mechanism also includes a slider, and the top of the base is provided with a groove matching the slider on the side away from the two mounting frames, the slider is slidably embedded in the groove, and the first motor is fixedly arranged on the top of the corresponding slider.

[0017] In the utility model, a telescopic rod is arranged between the side wall of the sliding block away from the mounting frame and the end wall of the sliding groove.

[0018] The principle and effect of this technical solution:

[0019] The telescopic rod is extended to move the slide block so that the grinding sheet abuts against the end surface of the concrete test sample. Through the above arrangement, the utility model can be applied to concrete test samples of various lengths.

[0020] In the utility model, a connecting block is fixedly arranged on one side of the clamping plate close to the movable plate, and the front and rear ends of the connecting block are respectively rotatably connected to the movable plate, and a torsion spring is respectively arranged between the front and rear ends of the connecting block and the movable plate. Through the above arrangement, when the device is idle, it can ensure that the clamping plates located at the upper and lower sides are continuously arranged facing each other, which is convenient for the inspectors to place the concrete inspection samples, thereby improving the practicality of the utility model.

[0021] In the utility model, a plurality of protrusions are fixedly arranged on one side of the clamping plate away from the movable plate. Through the above arrangement, the friction between the clamping plate and the concrete test sample can be increased, and the concrete test sample can be prevented from rotating during the grinding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is the axonometric drawing of the overall structure of the utility model;

[0023] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0024] Figure 3 Decomposition of some parts of the utility model Figure 1 ;

[0025] Figure 4 Decomposition of some parts of the utility model Figure 2 . DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with the accompanying drawings and implementation examples:

[0027] The figure marks in the drawings of the specification include: 10, base; 11, slide; 12, telescopic rod; 21, mounting frame; 22, movable plate; 23, clamping plate; 231, connecting block; 232, protrusion; 24, driving assembly; 241, second motor; 242, bidirectional screw; 25, transmission assembly; 251, pulley; 252, transmission belt; 31, first motor; 32, grinding disc; 33, slider.

[0028] As attached Figure 1-4 As shown, the utility model discloses a concrete test sample grinding device, including a base 10, a clamping mechanism and a grinding mechanism are fixedly arranged on the top of the base 10, the clamping mechanism is symmetrically arranged in two groups, each group of the clamping mechanism includes a mounting frame 21 and two movable plates 22, the mounting frame 21 is fixedly arranged on the top of the base 10, and the mounting frame 21 has a through mounting channel, the two movable plates 22 are symmetrically arranged in the mounting channel, and can respectively move up and down relative to the mounting frame 21, and the two movable plates 22 are rotatably arranged on one side close to each other with a V-shaped clamping plate 23, the grinding mechanism is symmetrically arranged in two groups, and are respectively located on the side away from each other of the two clamping mechanisms, each group of the grinding mechanism includes a first motor 31 and a grinding sheet 32, the grinding sheet 32 ​​is fixedly sleeved on the output shaft of the first motor 31, and the first motor 31 can slide laterally relative to the base 10.

[0029] In this embodiment, the clamping mechanism also includes a driving component 24, which includes a second motor 241 and a bidirectional screw 242. The bidirectional screw 242 is provided in two and is respectively inserted at the two ends of the mounting frame 21 along the vertical rotation. The two ends of the two movable plates 22 are respectively fitted and sleeved on the two bidirectional screws 242, and are respectively symmetrically arranged on the positive and negative thread sections of the bidirectional screws 242. The two bidirectional screws 242 are connected in transmission through a transmission component 25. The second motor 241 is fixedly arranged on the top of the mounting frame 21, and the output shaft of the second motor 241 is connected in transmission with one of the bidirectional screws 242.

[0030] In this embodiment, the transmission assembly 25 includes a pulley 251 and a transmission belt 252 . The pulleys 251 are provided in two numbers and are respectively fixedly sleeved on the bottom of the two bidirectional screws 242 . The transmission belt 252 is wound around the two pulleys 251 .

[0031] In this embodiment, the grinding mechanism also includes a slider 33. The top of the base 10 is provided with a groove 11 that cooperates with the slider 33 on the side away from the two mounting frames 21. The slider 33 is slidably embedded in the groove 11, and the first motor 31 is fixedly arranged on the top of the corresponding slider 33.

[0032] In this embodiment, a telescopic rod 12 is disposed between a side wall of the sliding block 33 at one end away from the mounting frame 21 and an end wall of the sliding groove 11 .

[0033] In this embodiment, a connecting block 231 is fixedly provided on one side of the clamping plate 23 close to the movable plate 22, and the front and rear ends of the connecting block 231 are respectively rotatably connected to the movable plate 22, and torsion springs are respectively provided between the front and rear ends of the connecting block 231 and the movable plate 22, and the force directions of the two torsion springs are opposite.

[0034] In this embodiment, a plurality of protrusions 232 are fixedly disposed on a side of the clamping plate 23 away from the movable plate 22 .

[0035] The specific implementation process is as follows:

[0036] Before starting grinding, the two movable plates 22 of each clamping mechanism are respectively moved to the upper and lower ends of the installation channel, and the concrete test sample to be ground is placed horizontally in the installation channel. At the same time, the two symmetrically arranged movable plates 22 are moved toward each other, so that the clamping plates 23 rotatably connected to the movable plates 22 are pressed against the side walls of the concrete test sample. When the concrete test sample is a truncated cone, after each clamping plate 23 contacts the side wall of the concrete test sample, the movable plates 22 are continued to be moved, and each clamping plate 23 rotates relative to the movable plate 22 and presses against the side walls of the concrete test sample respectively. At this time, each clamping plate 23 cannot continue to rotate, and the axis of the concrete test sample is horizontal. The first motor 31 is moved to make the grinding sheet 32 ​​contact the end face of the concrete test sample and grind it.

[0037] The second motor 241 is driven to rotate one of the bidirectional screws 242 , and the bidirectional screw 242 drives the other bidirectional screw 242 to rotate through the pulley 251 and the transmission belt 252 . The two moving plates 22 move toward or away from each other as the bidirectional screws 242 rotate.

[0038] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical scheme or characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the technical scheme of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A concrete testing sample grinding device, It is characterized in that include: A base, a clamping mechanism and a grinding mechanism are fixedly arranged on the top of the base; The clamping mechanism is symmetrically arranged in two groups, each group of the clamping mechanism includes a mounting frame and two movable plates, the mounting frame is fixedly arranged on the top of the base, and the mounting frame has a through mounting channel, the two movable plates are symmetrically arranged in the mounting channel, and can move up and down relative to the mounting frame respectively, and the two movable plates are rotatably arranged with a V-shaped clamping plate on one side close to each other; The grinding mechanisms are symmetrically arranged in two groups and are respectively located on the side away from each other of the two clamping mechanisms. Each group of the grinding mechanisms includes a first motor and a grinding plate. The grinding plate is fixedly sleeved on the output shaft of the first motor, and the first motor can slide laterally relative to the base.

2. The concrete test sample grinding device according to claim 1, Features: The clamping mechanism also includes a driving assembly, which includes a second motor and a bidirectional screw. The bidirectional screws are provided in two and are respectively inserted into the two ends of the mounting frame along the vertical rotation. The two ends of the two movable plates are respectively fitted and sleeved on the two bidirectional screws, and are respectively symmetrically arranged on the positive and negative thread sections of the bidirectional screws. The two bidirectional screws are connected in transmission through a transmission assembly. The second motor is fixedly arranged on the top of the mounting frame, and the output shaft of the second motor is connected in transmission with one of the bidirectional screws.

3. The concrete test sample grinding device according to claim 2, Features: The transmission assembly comprises a pulley and a transmission belt. The pulleys are provided in two numbers and are respectively fixedly sleeved on the bottoms of the two bidirectional screws. The transmission belt is wound around the two pulleys.

4. The concrete test sample grinding device according to claim 3, Features: The grinding mechanism also includes a slider. The top of the base is provided with a groove matching the slider on the side away from the two mounting frames. The slider is slidably embedded in the groove. The first motor is fixedly arranged on the top of the corresponding slider.

5. The concrete test sample grinding device according to claim 4, Features: A telescopic rod is arranged between the side wall of the sliding block away from the mounting frame and the end wall of the sliding groove.

6. The concrete test sample grinding device according to any one of claims 1 to 5, Features: A connecting block is fixedly arranged on one side of the clamping plate close to the movable plate, the front and rear ends of the connecting block are respectively rotatably connected to the movable plate, and torsion springs are respectively arranged between the front and rear ends of the connecting block and the movable plate.

7. The concrete test sample grinding device according to any one of claims 1 to 5, Features: A plurality of protrusions are fixedly arranged on one side of the clamping plate away from the movable plate.

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