CN221260657U - Compression-resistant detection device for plastic part - Google Patents

Abstract

The utility model relates to the technical field of compression resistance detection of plastic parts, and discloses a compression resistance detection device for plastic parts. The utility model comprises a bearing table, wherein a pressure sensor is fixedly arranged on the upper surface of the bearing table, a supporting plate is fixedly arranged at the upper end of the pressure sensor, a positioning disk is fixedly arranged on the upper surface of the supporting plate, a connecting ring is rotationally connected to the outer side of the positioning disk, and a limiting plate is rotationally connected to the inner part of the connecting ring. According to the utility model, one end of the mutually-interweaved limiting plate is rotationally connected to the inner side of the connecting ring, the lower part of the other end of the mutually-interweaved limiting plate is slidably connected in the sliding groove formed in the upper part of the positioning disc, the size of the space between interweaved limiting positions is changed by rotating the connecting ring, and further, the special-shaped plastic piece without a small plane at the bottom is stably positioned, so that the plastic piece can be placed on the supporting plate according to a preset direction, and the compression capacity of the special-shaped plastic piece in the preset direction can be accurately measured.

Description

A compression testing device for plastic parts

Technical Field

The utility model relates to the technical field of plastic part compression detection, in particular to a plastic part compression detection device.

Background technique

The compression test of plastic parts is one of the means to ensure the quality of plastic parts in mass production. The main method is to use pressure equipment to apply pressure to plastic parts and measure the limit value of plastic parts deformation. The compression test device for plastic parts is a device used to test the compression performance of plastic parts; it usually consists of a pressure sensor, a pressure loading system and a data acquisition system; during the test, the plastic parts are placed under the loading system, and the loading system compresses the plastic parts by applying pressure until the plastic parts fail, thereby detecting the compression resistance of the plastic parts.

Existing plastic part compression testing devices usually place the plastic part on a platform, and the pressure head applies pressure to the plastic part from above to test the compression resistance of the plastic part. However, for special-shaped plastic parts without a small flat surface on the bottom, it is difficult to place them on the platform in a predetermined direction, making it difficult to specify the compression direction of the special-shaped plastic parts, and further making it difficult to accurately measure the compression resistance of the special-shaped plastic parts in the specified direction. Therefore, we propose a plastic part compression testing device to solve the above problems.

Utility Model Content

In view of the deficiencies in the prior art, the utility model provides a compression testing device for plastic parts, which solves the problems mentioned in the above background.

The utility model provides the following technical solutions:

The utility model is a pressure resistance detection device for plastic parts, comprising a bearing platform and a support frame fixedly arranged on the upper surface of the bearing platform, an electric push rod fixedly installed on the upper end of the support frame, a pressure plate fixedly installed on the output end of the electric push rod, a pressure sensor fixedly installed on the upper surface of the bearing platform, a support plate fixedly installed on the upper end of the pressure sensor, a positioning plate fixedly installed on the upper surface of the support plate, a connecting ring rotatably connected to the outer side of the positioning plate, and a limiting plate rotatably connected to the inner side of the connecting ring.

Furthermore, the limiting plate includes a first connecting column, a grid bar rod and a second connecting column, the first connecting column is rotatably connected to the inner side of the connecting ring, the grid bar rod is fixedly arranged on one side of the first connecting column, the grid bar rod is evenly arranged on one side of the first connecting column, and the second connecting column is fixedly arranged on one end of the grid bar rod away from the first connecting column.

Furthermore, the limit plates are distributed in a ring shape inside the connecting ring, and the limit plates are intertwined with each other.

Furthermore, a slide groove is provided on the upper surface of the positioning plate, and the slide groove is distributed in an annular manner on the upper surface of the positioning plate, and the lower end of the second connecting column is slidably connected inside the slide groove.

Furthermore, a worm wheel is sleeved on the outer side of the connecting ring, and the worm wheel is fixedly arranged on the outer side of the connecting ring. A worm is rotatably connected to the upper surface of the supporting plate, and the worm is meshed with the worm wheel.

Furthermore, a servo motor is fixedly mounted on the upper surface of the support plate, and the worm is fixedly mounted on an output end of the servo motor.

Furthermore, the gap between the grid bars is greater than twice the width of the grid bars.

Furthermore, the positioning plate is located directly below the pressure plate, and the positioning plate is coaxially arranged with the pressure plate.

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

The utility model has one end of the interwoven limit plates rotatably connected to the inner side of the connecting ring, and the lower part of the other end is slidably connected to the slide groove opened on the upper part of the positioning plate. The connecting ring is rotated to change the size of the space between the interwoven limit plates, thereby stably positioning the special-shaped plastic parts without small planes on the bottom, so that the plastic parts can be placed on the support plate in a predetermined direction, and the pressure-bearing capacity of the special-shaped plastic parts in the specified direction can be accurately measured.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a schematic diagram of the overall assembly of the utility model;

Figure 2 is a schematic diagram of the load-bearing platform of the utility model;

FIG3 is a schematic diagram of an exploded view of the positioning structure of the utility model;

Figure 4 is a schematic diagram of the interlacing of the limiting plates of the utility model;

FIG5 is a partial enlarged schematic diagram of point A in FIG1 of the present invention.

In the figure: 1. load-bearing platform; 2. support frame; 3. electric push rod; 4. pressure plate; 5. pressure sensor; 6. support plate; 7. positioning plate; 8. connecting ring; 9. worm gear; 10. worm; 11. servo motor; 12. slide slot; 13. first connecting column; 14. grid bar; 15. second connecting column.

Detailed ways

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 of 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.

Please refer to Figures 1-5, a pressure resistance detection device for plastic parts includes: a load-bearing platform 1 and a support frame 2 fixedly arranged on the upper surface of the load-bearing platform 1, the support frame 2 is an inverted L-shape, an electric push rod 3 is fixedly installed on the upper end of the support frame 2, the electric push rod 3 is vertically arranged, the output end of the electric push rod 3 is downward, and a pressure plate 4 is fixedly installed on the output end of the electric push rod 3, the pressure plate 4 is circular, the pressure plate 4 is coaxially arranged with the output end of the electric push rod 3, the electric push rod 3 can drive the pressure plate 4 fixedly installed on its output end to move up and down, pressure sensors 5 are rectangularly distributed on the upper surface of the load-bearing platform 1, and the pressure sensors 5 are fixedly installed on the upper surface of the load-bearing platform 1, and a support plate 6 is fixedly installed on the upper end of the pressure sensor 5, a plastic part to be tested for strength is placed above the support plate 6, the electric push rod 3 drives the pressure plate 4 to slowly press down the plastic part, the pressure sensor 5 fixedly installed below the support plate 6 carrying the plastic part collects pressure data, and transmits it to a data processing device to detect the pressure resistance of the plastic part, the data transmission and processing are existing technologies, so it will not be described in detail.

A positioning plate 7 is fixedly installed on the upper surface of the support plate 6. The positioning plate 7 is circular and is arranged directly below the pressure plate 4. The positioning plate 7 is coaxially arranged with the pressure plate 4. A connecting ring 8 is sleeved on the outer side of the positioning plate 7. The connecting ring 8 is rotatably connected to the outer side of the positioning plate 7. A limiting plate for positioning the plastic part is arranged inside the connecting ring 8. The limiting plate is a grid-like structure. The limiting plate includes a first connecting column 13, a grid bar rod 14 and a second connecting column 15. The first connecting column 13 is cylindrical and rotatably connected to the inner side of the connecting ring 8. The first connecting column 13 is cylindrical and rotatably connected to the inner side of the connecting ring 8. The column 13 is vertically arranged, and a bar bar 14 is fixedly arranged on one side of the first connecting column 13. The bar bar 14 is evenly arranged on one side of the first connecting column 13. The bar bar 14 is a quadrangular column, and the length direction of the bar bar 14 is perpendicular to the axis direction of the first connecting column 13. A second connecting column 15 is fixedly arranged on one end of the bar bar 14 away from the first connecting column 13. The second connecting column 15 is parallel to the first connecting column 13. The gap between the bar bars 14 is greater than twice the width of the bar bar 14. The limit plates are annularly distributed in the connecting ring 8. The number of the three chute plates is three, and the three grating-shaped limiting plates are interwoven with each other. After the three limiting plates are interwoven, an equilateral triangle area is formed. A slide groove 12 is provided on the upper surface of the positioning plate 7. The slide groove 12 is annularly distributed on the upper surface of the positioning plate 7, and the slide groove 12 is radially distributed outward from the center of the upper surface of the positioning plate 7. The number of the slide groove 12 is three, and the lower end of the second connecting column 15 is slidably connected to the inside of the slide groove 12. One end of the limiting plate composed of the first connecting column 13, the grating bar 14 and the second connecting column 15 is rotatably connected to the connecting column 13. On the inner side of the connecting ring 8, the lower part of the other end is restricted by the slide groove 12 provided on the upper surface of the positioning plate 7. When the connecting ring 8 sleeved on the outer side of the positioning plate 7 is rotated counterclockwise, the connecting ring 8 drives the limit plate connected to the inner side thereof to move. Since the second connecting column 15 at one end of the limit plate is slidably connected inside the slide groove 12, the interwoven grid-like limit plates move relative to each other, thereby reducing the triangular area formed by the three limit plates. Conversely, when the connecting ring 8 is rotated clockwise, the triangular area formed by the three limit plates increases.

A worm wheel 9 is sleeved on the outside of the connecting ring 8, and the worm wheel 9 is fixedly installed on the outside of the connecting ring 8. A worm 10 is rotatably connected to the upper surface of the support plate 6, and the worm 10 is meshed with the outside of the worm wheel 9. A servo motor 11 is fixedly installed on the upper surface of the support plate 6, and the worm 10 is fixedly installed at the output end of the worm wheel 9. When the servo motor 11 drives the worm 10 fixedly installed on its output end to rotate, the worm 10 drives the connecting ring 8 connected to the outside of the positioning plate 7 to rotate through the worm wheel 9 meshed with it. For special-shaped plastic parts without small flat surfaces on the bottom, it is difficult to place them on the platform in a predetermined direction, making it difficult to specify the compressive direction of the special-shaped plastic parts. When using the plastic part compression testing device to test the compression resistance of the plastic parts, the plastic parts are placed inside the triangular area surrounded by three limit plates, and the worm 10 drives the connecting ring connected to the outside of the positioning plate 7 to rotate through the worm wheel 9 meshed with it. 8 rotates, and then adjusts the size of the triangular area surrounded by the limit plates, so that the three surfaces of the limit plates abut against the outside of the plastic part, and the upper surface of the positioning plate 7 supports the plastic part. At this time, the plastic part can be pressed by the pressure plate 4 above the positioning plate 7, so as to measure the pressure resistance of the plastic part in a specified direction. The plastic part pressure resistance detection device changes the size of the space surrounded by the interwoven limit plates by rotating the connecting ring 8, and then stably positions the special-shaped plastic part without a small plane at the bottom, so that the plastic part can be placed on the support plate 6 in a predetermined direction, and then the pressure resistance of the special-shaped plastic part in the specified direction can be accurately measured. It is worth noting that when using the plastic part pressure resistance detection device to perform pressure resistance detection on the plastic part, the height of the plastic part needs to be higher than the height of the limit plate. When the electric push rod 3 drives the pressure plate 4 to drop to the lowest point, the lower surface of the pressure plate 4 is still higher than the upper edge of the limit plate.

Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims (8)

1. A compressive testing device for plastic parts, comprising: a bearing platform (1) and a support frame (2) fixedly arranged on the upper surface of the bearing platform (1), characterized in that an electric push rod (3) is fixedly installed on the upper end of the support frame (2), a pressure plate (4) is fixedly installed on the output end of the electric push rod (3), a pressure sensor (5) is fixedly installed on the upper surface of the bearing platform (1), a support plate (6) is fixedly installed on the upper end of the pressure sensor (5), a positioning plate (7) is fixedly installed on the upper surface of the support plate (6), a connecting ring (8) is rotatably connected to the outer side of the positioning plate (7), and a limiting plate is rotatably connected to the inner side of the connecting ring (8). 2. A compression testing device for plastic parts according to claim 1, characterized in that the limit plate includes a first connecting column (13), a grid bar rod (14) and a second connecting column (15), the first connecting column (13) is rotatably connected to the inner side of the connecting ring (8), the grid bar rod (14) is fixedly arranged on one side of the first connecting column (13), the grid bar rod (14) is evenly arranged on one side of the first connecting column (13), and the second connecting column (15) is fixedly arranged on one end of the grid bar rod (14) away from the first connecting column (13). 3. A compression testing device for plastic parts according to claim 1, characterized in that the limit plates are distributed in a ring shape inside the connecting ring (8), and the limit plates are intertwined with each other. 4. A compression testing device for plastic parts according to claim 2, characterized in that a slide groove (12) is provided on the upper surface of the positioning plate (7), the slide groove (12) is distributed in an annular manner on the upper surface of the positioning plate (7), and the lower end of the second connecting column (15) is slidably connected to the inside of the slide groove (12). 5. A compression testing device for plastic parts according to claim 1, characterized in that a worm gear (9) is sleeved on the outside of the connecting ring (8), the worm gear (9) is fixedly arranged on the outside of the connecting ring (8), and a worm (10) is rotatably connected to the upper surface of the support plate (6), and the worm (10) is meshed with the worm gear (9). 6. A compression testing device for plastic parts according to claim 5, characterized in that a servo motor (11) is fixedly mounted on the upper surface of the support plate (6), and the worm (10) is fixedly mounted on the output end of the servo motor (11). 7. A compression testing device for plastic parts according to claim 2, characterized in that the gap between the grid bars (14) is greater than twice the width of the grid bars (14). 8. A compression resistance testing device for plastic parts according to claim 1, characterized in that the positioning plate (7) is located directly below the pressure plate (4), and the positioning plate (7) and the pressure plate (4) are coaxially arranged.