A self-tapping screw machining strength detection device

Abstract

The utility model relates to screw detection technical field discloses a strength detection device for self -tapping screw processing, including base, control equipment, clamping structure and detection structure, and detection structure includes hydraulic oil cylinder, frame and sliding slot, and the first gear is installed to frame through motor, and the fixed end of hydraulic oil cylinder is fixedly installed second gear, and second gear and first gear are mutually engaged, and the telescopic end of hydraulic oil cylinder is fixedly installed pressure head, and the bottom wall of pressure head sets up and installs the slot, and the inside rotation of pressure head's mounting groove installs two -way screw rod, and the both ends fixed mounting handle of two -way screw rod, and the second clamping block is installed on two -way screw rod screw, and second clamping block and sliding slot are slidably connected, and the opposite side of second clamping block is embedded and is installed with torsion sensor, and the bottom center position of pressure head is provided with pressure sensor. The utility model discloses the detection structure of setting, real -time acquisition pressure and torsion data, possess pressure and torsion double -detection function, can satisfy self -tapping screw different intensity detection demand.

Description

Technical Field

[0001] This utility model relates to the field of screw testing technology, and in particular to a strength testing device for processing self-tapping screws. Background Technology

[0002] Self-tapping screws are widely used in fastening metals, plastics, and other materials, and their strength requirements are high. To ensure the reliability and safety of self-tapping screws in actual use, they are usually subjected to strength testing. These testing devices mainly test the screw's tensile, torsional, and shear strength by simulating load conditions in actual use scenarios. Through rigorous mechanical testing of self-tapping screws, their material properties and processing quality can be verified, ensuring that they meet design requirements, thereby improving product lifespan and safety.

[0003] In existing technologies, testing under different specifications and stress conditions becomes difficult, which may lead to instability when pressure or torque is applied, thereby affecting the accuracy of the test results and failing to guarantee the consistency and reliability of the test. Utility Model Content

[0004] In view of the aforementioned problems that existing tests become difficult under different specifications and stress conditions, which may lead to instability when pressure or torque is applied, thereby affecting the accuracy of the test results and failing to guarantee the consistency and reliability of the test, this utility model is proposed.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a strength testing device for self-tapping screw processing, comprising a base, a control device, a clamping structure, and a testing structure. The testing structure includes a hydraulic cylinder, a frame, and a slide groove. A first gear is mounted on the frame via a motor. A second gear is fixedly mounted on the fixed end of the hydraulic cylinder, and the second gear and the first gear mesh with each other. A pressure head is fixedly mounted on the telescopic end of the hydraulic cylinder. An installation groove is provided on the bottom wall of the pressure head. A bidirectional lead screw is rotatably mounted inside the installation groove of the pressure head. Handles are fixedly mounted on both ends of the bidirectional lead screw. A second clamping block is threaded onto the bidirectional lead screw. The second clamping block and the slide groove are slidably connected. A torque sensor is embedded on the opposite side of the second clamping block. A pressure sensor is provided at the center of the bottom of the pressure head.

[0006] As a preferred embodiment of the strength testing device for self-tapping screw processing described in this utility model, the clamping structure includes a base plate and a fixed base. The base plate is fixedly installed on the top of the base and on one side of the control device. Support columns are fixedly installed at the four corners of the top of the base plate, and a top plate is fixedly installed on the top of the support columns.

[0007] As a preferred embodiment of the strength testing device for self-tapping screw processing described in this utility model, the fixed seat is fixedly installed at the top center of the base plate, a hole groove is provided at the center of the fixed seat, threaded seats are fixedly installed on both sides of the fixed seat, a screw is threadedly installed on the threaded seat, and a first clamping block is rotatably installed at the end of the screw that extends into one side of the fixed seat.

[0008] In a preferred embodiment of the strength testing device for self-tapping screw processing described in this utility model, the fixed end of the hydraulic cylinder is rotatably mounted on the top plate via a rotating sleeve, and the frame is fixedly mounted on the top of the top plate.

[0009] In a preferred embodiment of the strength testing device for self-tapping screw processing described in this utility model, the motor is fixedly installed on the top of the frame, the first gear is fixedly installed on the motor shaft, the slide grooves are respectively set on the inner wall of the pressure head and on both sides of the mounting groove, and the two ends of the second clamping block extend into the slide groove.

[0010] In a preferred embodiment of the strength testing device for self-tapping screw processing described in this utility model, the hydraulic cylinder, motor, torque sensor, pressure sensor, and control device are electrically connected.

[0011] The beneficial effects of this utility model are:

[0012] 1. Through the set detection structure, the pressure of the self-tapping screw is detected by the hydraulic cylinder driving the pressure head in conjunction with the pressure sensor. It can also detect the torque of the self-tapping screw by the cooperation of the bidirectional lead screw, the second clamping block and the torque sensor, combined with the motor and gear transmission. It can obtain high-precision pressure and torque data in real time and has dual detection functions of pressure and torque, which can meet the different strength detection requirements of self-tapping screws.

[0013] 2. Through the designed clamping structure, the screw is placed in the central slot of the fixed base. Rotating the screw on the threaded base will push the first clamping block to move towards the screw. By pushing the first clamping block from both sides of the screw with the screws on both sides, clamping force can be applied from both sides of the screw to ensure that the screw is stably clamped on the fixed base, avoiding loosening or displacement of the screw during the test and ensuring the accuracy of the test results. It can be adapted to self-tapping screws of different diameters and has a wide range of applications. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the clamping structure and the detection structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the clamping structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the hydraulic cylinder of this utility model;

[0019] Figure 5 This is a schematic diagram of the detection structure of this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Base; 2. Control equipment; 3. Clamping structure; 301. Base plate; 302. Support column; 303. Top plate; 304. Fixed seat; 305. Hole and slot; 306. Threaded seat; 307. Screw; 308. First clamping block; 4. Detection structure; 401. Hydraulic cylinder; 402. Rotating sleeve; 403. Frame; 404. Motor; 405. First gear; 406. Second gear; 407. Pressure head; 408. Slide groove; 409. Bidirectional lead screw; 410. Handle; 411. Second clamping block; 412. Torque sensor; 413. Pressure sensor. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Example 1

[0024] Refer to attached figure Figure 1 - Appendix Figure 3This is the first embodiment of the present invention, which provides a strength testing device for self-tapping screw processing, including a base 1, a control device 2, a clamping structure 3, and a testing structure 4. The control device 2 and the clamping structure 3 are respectively installed on the top of the base 1, and the testing structure 4 is installed on the clamping structure 3. The clamping structure 3 includes a base plate 301 and a fixed seat 304. The base plate 301 is fixedly installed on the top of the base 1 and on one side of the control device 2. Support columns 302 are fixedly installed at the four corners of the top of the base plate 301, and a top plate 303 is fixedly installed on the top of the support columns 302. The fixed seat 304 is fixedly installed at the middle of the top of the base plate 301. A hole groove 305 is provided at the center of the fixed seat 304. Threaded seats 306 are fixedly installed on both sides of the fixed seat 304. A screw 307 is threaded on the threaded seat 306. A first clamping block 308 is rotatably installed at the end of the screw 307 that extends into one side of the fixed seat 304.

[0025] During use, first place the self-tapping screw to be tested in the hole 305 in the center of the fixing seat 304, then rotate the screw 307 on the threaded seat 306, so that the screw 307 pushes the first clamping block 308 at its end to move towards the self-tapping screw, until the two first clamping blocks 308 stably clamp the self-tapping screw on the fixing seat 304, thus completing the self-tapping screw fixing.

[0026] Example 2

[0027] Refer to attached figure Figure 2 , Figure 4 and attached Figure 5 This is the second embodiment of the present invention, which differs from the first embodiment in that:

[0028] The detection structure 4 includes a hydraulic cylinder 401, a rotating sleeve 402, and a frame 403. The hydraulic cylinder 401 has a fixed end and a telescopic end. The fixed end of the hydraulic cylinder 401 is rotatably mounted on the top plate 303 via the rotating sleeve 402. The frame 403 is fixedly mounted on the top of the top plate 303, and a motor 404 is fixedly mounted on the top of the frame 403. A first gear 405 is fixedly mounted on the motor shaft of the motor 404, and a second gear 406 is fixedly mounted on the fixed end of the hydraulic cylinder 401. The second gear 406 and the first gear 405 mesh with each other. A pressure head 407 is fixedly mounted on the telescopic end of the hydraulic cylinder 401. The bottom wall of the pressure head 407 is provided with a mounting groove, and a bidirectional lead screw 409 is rotatably mounted inside the pressure head 407. A bidirectional lead screw 409 is installed in the mounting groove. Handles 410 are fixedly installed at both ends of the bidirectional lead screw 409. The inner wall of the pressure head 407 is provided with sliding grooves 408 on both sides of the mounting groove. A second clamping block 411 is threaded onto the bidirectional lead screw 409. Both ends of the second clamping block 411 extend into the sliding grooves 408, and the second clamping block 411 and the sliding grooves 408 are slidably connected. A torque sensor 412 is embedded on the opposite side of the second clamping block 411. A pressure sensor 413 is provided at the bottom center of the pressure head 407. The pressure sensor 413 is protected by a hard material. The hydraulic cylinder 401, motor 404, torque sensor 412, pressure sensor 413 and control device 2 are electrically connected.

[0029] During use, when testing the pressure of the self-tapping screw, the hydraulic cylinder 401 is activated via the control device 2 until the pressure head 407 contacts the self-tapping screw. The pressure sensor 413 at the bottom center of the pressure head 407 contacts the self-tapping screw and applies pressure, transmitting the detected data to the control device 2. If the torque of the self-tapping screw needs to be tested, the handles 410 at both ends of the bidirectional lead screw 409 are rotated, causing the bidirectional lead screw 409 to rotate within the mounting groove of the pressure head 407. Since the second clamping block 411 is threadedly connected to the bidirectional lead screw 409 and slides along the slide groove 408 at both ends, it will cause the two second clamping blocks 411 to move closer together, clamping the top of the self-tapping screw. Simultaneously, the second clamping... When the torque sensor 412 on block 411 is in contact with the screw, the control device 2 starts the motor 404. The motor 404 drives the first gear 405 to rotate. Since the first gear 405 meshes with the second gear 406, it drives the hydraulic cylinder 401 to rotate on the top plate 303 through the rotating sleeve 402, thereby twisting the self-tapping screw. During the process, the torque sensor 412 transmits real-time detection data to the control device 2. The control device 2 processes and displays the data. After the detection is completed, the control device 2 controls the hydraulic cylinder 401 to retract, the motor 404 to reverse and reset, and the handle 410 to be rotated in the opposite direction to release the second clamping block 411, thus completing the detection operation.

[0030] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A strength testing device for self-tapping screw processing, comprising a base (1), a control device (2), a clamping structure (3), and a testing structure (4), characterized in that: The detection structure (4) includes a hydraulic cylinder (401), a frame (403), and a slide (408). The frame (403) is mounted with a first gear (405) via a motor (404). A second gear (406) is fixedly mounted on the fixed end of the hydraulic cylinder (401), and the second gear (406) and the first gear (405) mesh with each other. A pressure head (407) is fixedly mounted on the telescopic end of the hydraulic cylinder (401), and the bottom wall of the pressure head (407) has an installation groove. A bidirectional lead screw (409) is rotatably installed inside the mounting groove of the pressure head (407). Handles (410) are fixedly installed at both ends of the bidirectional lead screw (409). A second clamping block (411) is threaded onto the bidirectional lead screw (409). The second clamping block (411) is slidably connected to the slide groove (408). A torque sensor (412) is embedded on the opposite side of the second clamping block (411). A pressure sensor (413) is provided at the bottom center of the pressure head (407).

2. The strength testing device for self-tapping screw processing according to claim 1, characterized in that: The clamping structure (3) includes a base plate (301) and a fixed seat (304). The base plate (301) is fixedly installed on the top of the base (1) and on one side of the control device (2). Support columns (302) are fixedly installed at the four corners of the top of the base plate (301), and a top plate (303) is fixedly installed at the top of the support columns (302).

3. The strength testing device for self-tapping screw processing according to claim 2, characterized in that: The fixing seat (304) is fixedly installed at the top center of the base plate (301). A hole (305) is provided at the center of the fixing seat (304). Threaded seats (306) are fixedly installed on both sides of the fixing seat (304). A screw (307) is threaded on the threaded seat (306). A first clamping block (308) is rotatably installed at the end of the screw (307) that extends into one side of the fixing seat (304).

4. The strength testing device for self-tapping screw processing according to claim 1, characterized in that: The fixed end of the hydraulic cylinder (401) is rotatably mounted on the top plate (303) via a rotating sleeve (402), and the frame (403) is fixedly mounted on the top of the top plate (303).

5. The strength testing device for self-tapping screw processing according to claim 4, characterized in that: The motor (404) is fixedly installed on the top of the frame (403), the first gear (405) is fixedly installed on the motor shaft of the motor (404), the slide groove (408) is respectively set on the inner wall of the pressure head (407) and on both sides of the mounting groove, and the two ends of the second clamping block (411) extend into the slide groove (408).

6. The strength testing device for self-tapping screw processing according to claim 1, characterized in that: The hydraulic cylinder (401), motor (404), torque sensor (412), pressure sensor (413) and control device (2) are electrically connected.

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