Hardness detection device for conical double-cylinder screw

Abstract

The utility model belongs to the technical field of detection equipment, and particularly relates to a hardness detection device for a conical double-barrel screw, which comprises a workbench and further comprises a lifting control component, the lifting control component comprises a frame body fixedly connected to the upper surface of the workbench and a bidirectional screw rod rotationally connected to the frame body, and the bidirectional screw rod is connected with the workbench. Two sliding blocks which are symmetrically distributed are connected to the two-way lead screw in a threaded mode, and supporting arms are rotationally connected to the two sliding blocks. By arranging the height-adjustable sensing component, the screw rod is placed on the supporting component during use, the hydraulic cylinder applies pressure to the screw rod in a pressure head mode, the screw rod is bent, the bent part is in contact with the sensing component, and the height of the sensing component can be adjusted, so that the screw rod is more convenient to use. According to the device, the pressure required to be applied to the screw at different bending degrees is detected, the hardness detection of the screw at different deformation degrees is realized, the data is more accurate, and the problem that the detection precision of the device at the present stage is not high enough is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to a hardness detection device for a conical double barrel screw. Background Art

[0002] The conical twin screw is different from the parallel twin screw in appearance. The diameters of its two ends are different. The diameter of the feeding section is large, while the diameter of the homogenizing section is small, with a gradual transition in the middle. The conical twin screw is a meshing type, and most of them rotate in opposite directions.

[0003] During the production and processing of conical twin-barrel screws, hardness testing is required to detect whether the hardness of the screw meets the standard. The current testing device generally performs testing through a pressure monitoring device. When in use, the screw is placed on the equipment, and the hydraulic cylinder drives the screw to bend, and then the hardness testing process is realized. However, the current device cannot perform hardness testing of the screw at different deformation degrees to detect the pressure required to be applied to the screw at different bending degrees. The test data is small and single, so the test data is often not accurate enough, and there are certain defects and deficiencies, which need to be improved. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a hardness detection device for a conical double-barrel screw. By setting a height-adjustable sensing component, the screw is placed on a supporting component when in use, and a hydraulic cylinder applies pressure to the screw by means of a pressure head. The screw bends, and the bent portion contacts the sensing component. The height of the sensing component can be adjusted to detect the pressure required to be applied to the screw at different degrees of bending, thereby realizing hardness detection at different degrees of deformation. The data is more accurate, which solves the problem of insufficient detection accuracy of the current device.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0008] A hardness detection device for a conical twin-barrel screw, comprising a workbench and:

[0009] A lifting control component, the lifting control component includes a frame fixedly connected to the upper surface of the workbench, and a bidirectional screw rotatably connected to the frame, two symmetrically distributed sliding blocks are threadedly connected to the bidirectional screw, and the two sliding blocks are rotatably connected to support arms, and the tops of the two support arms are rotatably connected to lifting plates;

[0010] A supporting component, the supporting component comprises a base plate, a weighing sensor and a bearing plate, wherein the base plate is fixedly connected to the upper surface of the workbench, the weighing sensor is installed between the upper surface of the base plate and the lower surface of the bearing plate, both sides of the bearing plate are fixedly connected with a supporting frame, and the top of the supporting frame is provided with an arc groove for accommodating a screw;

[0011] A mounting plate, the mounting plate being fixedly connected to the lifting plate;

[0012] A sensing component is mounted on a mounting plate. The sensing component includes a circular plate and a protrusion fixedly connected to the upper surface of the circular plate. A damping rod is arranged between the circular plate and the mounting plate. A switch contact is installed on the lower surface of the circular plate. A lithium battery and an indicator light are installed on the workbench. The switch contact, the lithium battery and the indicator light are connected in series.

[0013] Furthermore, a mounting frame is fixed on one side of the workbench, a hydraulic cylinder is installed on the top of the mounting frame, and a pressure head is fixedly connected to the bottom of the output shaft of the hydraulic cylinder.

[0014] Furthermore, a scale is fixedly connected to one side of the mounting plate, and the scale is inserted into a corresponding clearance cavity opened on the workbench.

[0015] Furthermore, a guide rod is fixed on the frame, a guide hole adapted to the guide rod is opened at a position of the sliding block corresponding to the guide rod, and one end of the bidirectional screw rod extends to the outside of the frame and is fixed with a hand wheel.

[0016] Furthermore, the four corners of the upper surface of the base plate are fixedly connected with limit rods, and the load-bearing plate is provided with clearance holes corresponding to the limit rods.

[0017] Furthermore, a pressure relief seat is fixedly connected to the upper surface of the mounting plate corresponding to the switch contact.

[0018] Furthermore, a controller is installed on the workbench, the controller is electrically connected to the weighing sensor, and a display screen is provided on one side of the controller.

[0019] (III) Beneficial effects

[0020] Compared with the prior art, the utility model provides a hardness detection device for a conical twin-barrel screw, which has the following beneficial effects:

[0021] The utility model provides a height-adjustable sensing component. When in use, the screw is placed in the limit groove of the support frame, and the hydraulic cylinder drives the pressure head to move. The screw is extruded and deformed by the pressure head to perform hardness detection. During the detection, the weighing sensor in the supporting component can display the pressure change on the screw. When the bent part of the screw contacts the sensing component, the indicator light will work. In addition, the height of the sensing component in the device can be adjusted. Different heights enable the device to meet the hardness detection of the screw under different deformation and bending conditions. The lower the height of the sensing component, the more it can realize the hardness detection of the screw under greater deformation conditions, thereby enriching the detection samples and the detection data, making the detection results more accurate and more convincing, thereby improving the use function of the detection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 It is a structural schematic diagram of the lifting control component in the utility model;

[0024] Figure 3 It is a structural schematic diagram of the supporting component in the utility model;

[0025] Figure 4 It is a schematic diagram of the structure of the sensing component in the utility model.

[0026] In the figure: 1. workbench; 2. lifting control component; 201. frame; 202. bidirectional screw; 203. guide rod; 204. sliding block; 205. support arm; 206. lifting plate; 207. hand wheel; 3. scale; 4. controller; 5. support component; 501. substrate; 502. weighing sensor; 503. load-bearing plate; 504. limit rod; 505. support frame; 506. arc groove; 6. mounting plate; 7. sensing component; 701. round plate; 702. protrusion; 703. switch contact; 704. pressure relief seat; 705. damping rod; 8. mounting frame; 9. hydraulic cylinder; 10. pressure head; 11. lithium battery; 12. indicator light. DETAILED DESCRIPTION

[0027] 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.

[0028] Example

[0029] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a hardness detection device for a conical twin-barrel screw provided in one embodiment of the utility model comprises a workbench 1, and also comprises:

[0030] The lifting control component 2 includes a frame 201 fixedly connected to the upper surface of the workbench 1, and a bidirectional screw rod 202 rotatably connected to the frame 201, and two symmetrically distributed sliding blocks 204 are threadedly connected to the bidirectional screw rod 202, and the two sliding blocks 204 are rotatably connected to support arms 205, and the tops of the two support arms 205 are rotatably connected to the lifting plate 206; it should be noted that when the bidirectional screw rod 202 rotates, it can drive the two sliding blocks 204 to move toward each other, and when the sliding blocks 204 move, the support arms 205 will flip over, so as to realize the lifting and lowering drive of the lifting plate 206 on the top of the support arms 205. This method can realize the stable lifting and lowering drive of the lifting plate 206, and has good stability;

[0031] The support component 5 includes a substrate 501, a weighing sensor 502 and a load-bearing plate 503, wherein the substrate 501 is fixedly connected to the upper surface of the workbench 1, the weighing sensor 502 is installed between the upper surface of the substrate 501 and the lower surface of the load-bearing plate 503, and support frames 505 are fixedly connected to both sides of the load-bearing plate 503, and the top of the support frame 505 is provided with an arc groove 506 for accommodating a screw rod; it should be noted that the support component 5 is used for supporting the screw rod, and then the hardness of the screw rod is tested, the model of the weighing sensor 502 is JH-LF72, and it can perform pressure testing during the hardness testing of the screw rod, the weighing sensor 502 is installed between the upper surface of the substrate 501 and the lower surface of the load-bearing plate 503, and then the pressure testing when the screw rod is bent and deformed is performed, and the top of the support frame 505 is provided with an arc groove 506 for accommodating a screw rod, and the arc groove 506 is used for placing the screw rod;

[0032] The mounting plate 6 is fixedly connected to the lifting plate 206 to realize the lifting control of the mounting plate 6;

[0033] The sensing component 7 is mounted on the mounting plate 6. The sensing component 7 includes a circular plate 701 and a protrusion 702 fixedly connected to the upper surface of the circular plate 701. A damping rod 705 is provided between the circular plate 701 and the mounting plate 6. A switch contact 703 is installed on the lower surface of the circular plate 701. A lithium battery 11 and an indicator light 12 are installed on the workbench 1. The switch contact 703, the lithium battery 11 and the indicator light 12 are connected in series. It should be noted that the sensing component 7 is mounted on the mounting plate 6 and can be adjusted in height. When the hardness of the screw is tested, the screw is bent, and the bent portion contacts the sensing component 7 to achieve contact sensing. By fixing the protrusion 702 on the upper surface of the circular plate 701, the sensing component 7 can be adjusted in height. , used for contact of the bent portion of the screw, by arranging a damping rod 705 between the circular plate 701 and the mounting plate 6, the circular plate 701 can be extended and retracted, and by installing a switch contact 703 on the lower surface of the circular plate 701, the circular plate 701 can drive the switch contact 703 to move downward when it moves downward, and the switch contact 703, the lithium battery 11 and the indicator light 12 are connected in series. When the switch contact 703 moves a certain distance, the power supply circuit between the lithium battery 11 and the indicator light 12 is connected, so that the indicator light 12 works. At this time, it indicates that the bent portion of the screw is in contact with the protrusion 702, and the bending degree of the screw reaches a specified value. At this time, the weighing sensor 502 can be used to detect the value of the screw's ability to withstand pressure under this bending deformation.

[0034] like Figure 1 As shown, in some embodiments, a mounting frame 8 is fixed on one side of the workbench 1, a hydraulic cylinder 9 is installed on the top of the mounting frame 8, and a pressing head 10 is fixedly connected to the bottom of the output shaft of the hydraulic cylinder 9. It should be noted that the hydraulic cylinder 9 can drive the pressing head 10 to extend and retract, so that the pressing head 10 contacts the screw to perform hardness detection of the screw.

[0035] like Figure 1 As shown, in some embodiments, a scale 3 is fixedly connected to one side of the mounting plate 6, and the scale 3 is inserted into the corresponding clearance cavity opened on the workbench 1; it should be noted that the mounting plate 6 can drive the scale 3 to rise and fall when it moves up and down, and the lifting height of the mounting plate 6 is displayed by the scale 3 to detect the applied pressure required for the screw under different bending degrees.

[0036] like Figure 2 As shown, in some embodiments, a guide rod 203 is also fixed on the frame 201, and a guide hole adapted to the guide rod 203 is opened at the sliding block 204 corresponding to the guide rod 203, and one end of the bidirectional screw rod 202 extends to the outside of the frame 201 and is fixed with a handwheel 207; it should be noted that the setting of the guide rod 203 can realize the guiding and limiting effects when the sliding block 204 moves, so that the sliding block 204 slides stably, and the setting of the handwheel 207 can control the rotation of the bidirectional screw rod 202, and then control the lifting and lowering of the lifting plate 206.

[0037] like Figure 3 As shown, in some embodiments, the four corners of the upper surface of the base plate 501 are fixedly connected with limit rods 504, and the load-bearing plate 503 is provided with clearance holes corresponding to the limit rods 504 to ensure the stability of the position of the load-bearing plate 503.

[0038] like Figure 1 and Figure 4 As shown, in some embodiments, a pressure relief seat 704 is fixedly connected to the upper surface of the mounting plate 6 corresponding to the switch contact 703; it should be noted that the setting of the pressure relief seat 704 can achieve pressure relief protection for the switch contact 703 to avoid extrusion damage.

[0039] like Figure 1 and Figure 3 As shown, in some embodiments, a controller 4 is installed on the workbench 1, the controller 4 and the weighing sensor 502 are electrically connected, and a display screen is provided on one side of the controller 4; it should be noted that the model of the controller 4 is S7-400, which can organize data and display the data on the display screen for easy viewing.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A hardness testing device for a conical twin-barrel screw, comprising a workbench (1), characterized in that: Also includes: A lifting control component (2), the lifting control component (2) comprising a frame (201) fixedly connected to the upper surface of the workbench (1), and a bidirectional screw rod (202) rotatably connected to the frame (201), two symmetrically distributed sliding blocks (204) being threadedly connected to the bidirectional screw rod (202), support arms (205) being rotatably connected to the two sliding blocks (204), and lifting plates (206) being rotatably connected to the tops of the two support arms (205); A support component (5), the support component (5) comprising a base plate (501), a weighing sensor (502) and a bearing plate (503), wherein the base plate (501) is fixedly connected to the upper surface of the workbench (1), the weighing sensor (502) is installed between the upper surface of the base plate (501) and the lower surface of the bearing plate (503), both sides of the bearing plate (503) are fixedly connected to a support frame (505), and the top of the support frame (505) is provided with an arc groove (506) for accommodating a screw rod; A mounting plate (6), wherein the mounting plate (6) is fixedly connected to the lifting plate (206); A sensing component (7) is mounted on a mounting plate (6), the sensing component (7) comprising a circular plate (701) and a protrusion (702) fixedly connected to the upper surface of the circular plate (701), a damping rod (705) is arranged between the circular plate (701) and the mounting plate (6), a switch contact (703) is mounted on the lower surface of the circular plate (701), a lithium battery (11) and an indicator light (12) are mounted on the workbench (1), and the switch contact (703), the lithium battery (11) and the indicator light (12) are connected in series.

2. A conical twin-barrel screw hardness detection device according to claim 1, characterized in that: A mounting frame (8) is fixed on one side of the workbench (1), a hydraulic cylinder (9) is installed on the top of the mounting frame (8), and a pressure head (10) is fixedly connected to the bottom of the output shaft of the hydraulic cylinder (9).

3. A conical twin-barrel screw hardness detection device according to claim 1, characterized in that: A scale (3) is fixedly connected to one side of the mounting plate (6), and the scale (3) is inserted into a corresponding clearance cavity opened on the workbench (1).

4. A conical twin-barrel screw hardness detection device according to claim 1, characterized in that: A guide rod (203) is also fixed on the frame (201), a guide hole adapted to the guide rod (203) is provided on the sliding block (204) at a position corresponding to the guide rod (203), and one end of the bidirectional screw rod (202) extends to the outside of the frame (201) and is fixed with a hand wheel (207).

5. The hardness detection device for a conical twin-barrel screw according to claim 1, characterized in that: The four corners of the upper surface of the base plate (501) are fixedly connected to limit rods (504), and the load-bearing plate (503) is provided with clearance holes corresponding to the limit rods (504).

6. A conical twin-barrel screw hardness detection device according to claim 1, characterized in that: A pressure relief seat (704) is fixedly connected to the upper surface of the mounting plate (6) at a position corresponding to the switch contact (703).

7. A conical twin-barrel screw hardness detection device according to claim 1, characterized in that: A controller (4) is installed on the workbench (1), the controller (4) is electrically connected to the weighing sensor (502), and a display screen is provided on one side of the controller (4).

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