Slip load testing device

Abstract

The utility model discloses a slip load testing device. The slip load testing device comprises a welding lower rack, a safety grating, a C-shaped welding frame, a servo press, a pressing floating tool, an electrical control cabinet, a human-computer interface and a remodeling tool, the safety grating is fixedly installed on the front side of the top of the welding lower rack, the top of the welding lower rack is fixedly connected with the upper rack, the C-shaped welding frame is fixedly connected between the inner wall of the top of the upper rack and the rear side of the top of the welding lower rack, and the servo press is fixedly installed on the inner wall of the top of the upper rack. The downward-pressing floating tool is fixedly installed on the top of the lower welding rack, the electric control cabinet is fixedly installed on the rear side of the lower welding rack, and the man-machine interface is fixedly installed on the right side of the upper rack. According to the utility model, product information can be recorded through code scanning and sliding force load simulation test work can be carried out in an integrated manner, the simulation test is integrated automatically, and the device has the advantages of high production efficiency, small occupied area and long service life.

Description

Technical Field

[0001] The utility model relates to the technical field of sliding force testing, in particular to a sliding load testing device. Background Art

[0002] The automotive industry is currently developing rapidly, and the demand for automobiles is constantly increasing. Therefore, higher goals are set for the production of various automobile components. In the development of new models, EPS calibration is a key link, which directly affects the handling stability of the vehicle. The sliding load test is one of the important technical means to evaluate the performance and safety of the vehicle. The sliding force test of the EPS mechanism of the automobile steering system requires high precision. Therefore, the current sliding force test production line is mainly developed with the improvement of precision and the conservation of resources as the main trend.

[0003] The existing slip load test uses an AC servo system to simulate the actual effect of steering wheel rotation on the steering gear. The test mainly includes two parts: 1. Steering wheel smooth rotation, i.e. fatigue durability test; 2. Steering wheel rapid rotation, i.e. impact load test;

[0004] According to the requirements of the "Technical Conditions and Bench Test Methods for Automobile Electric Power Steering Devices", after the load simulation test, the device can still steer normally and must not have any abnormalities or damage; based on the above-mentioned existing technologies, the existing slip load testing equipment is large in size and not centralized, and the step-by-step operations such as fixing and unfixing during the test are inefficient. In view of this, the present application proposes a slip load testing device. Utility Model Content

[0005] The purpose of the present utility model is to provide a sliding load testing device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the utility model provides the following technical solutions: a sliding load testing device, comprising a welding lower frame, a safety grating, a C-shaped welding frame, a servo press, a downward pressing floating tooling, an electrical control cabinet, a human-machine interface and a changing tooling;

[0007] The top of the welding lower frame is fixedly connected to the upper frame, the safety grating is fixedly installed on the front side of the upper frame, the C-shaped welding frame is fixedly connected between the top inner wall of the upper frame and the top rear side of the welding lower frame, the servo press is fixedly installed on the top inner wall of the upper frame, the downward pressing floating tooling is fixedly installed on the top of the welding lower frame, the electrical control cabinet is fixedly installed on the rear side of the welding lower frame, the human-machine interface is fixedly installed on the right side of the upper frame, and the changing tooling is fixedly installed on the right bottom of the upper frame;

[0008] The human-machine interface includes a PLC controller, an electric upper clamp is installed at the bottom end of the output shaft of the servo press, and an electric lower clamp is installed on the downward pressing floating tooling. The servo press, electric lower clamp and electric upper clamp are all electrically connected to the PLC controller and the electrical control cabinet.

[0009] Preferably, a same tension and pressure sensor is fixedly connected between the bottom end of the output shaft of the servo press and the electric upper clamping jaw. The electric upper clamping jaw is installed at the bottom end of the output end of the servo press through the tension and pressure sensor. A display screen is fixedly installed on the front top of the upper frame. The display screen and the tension and pressure sensor are both electrically connected to the PLC controller.

[0010] Preferably, a fan is installed on the top front side of the upper rack and is tilted forward and downward.

[0011] Preferably, the bottom of the welded lower frame is rectangular and rotatably mounted with six universal wheels with locks.

[0012] Preferably, a barcode scanner located at the rear side of the electric lower clamp is fixedly installed on the front side of the C-shaped welding frame, and the barcode scanner is electrically connected to the PLC controller.

[0013] Preferably, the display screen is controlled by a PLC controller to display the tension and pressure values ​​transmitted by the tension and pressure sensors.

[0014] Preferably, the safety light barrier is electrically connected to the PLC controller, and the safety light barrier is used to transmit a signal to the PLC controller to trigger emergency stop control when it senses the entry of a human body.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The utility model can scan codes to record product information and perform sliding force load simulation tests in one piece, utilizes an integrated automatic integrated simulation test, and has the advantages of high production efficiency, small site footprint and long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a sliding load testing device proposed in the present invention;

[0018] Figure 2 This is a right side structural schematic diagram of a sliding load testing device proposed in the present invention.

[0019] In the figure: 1. Welding lower frame; 101. Upper frame; 2. Safety light grid; 3. C-type welding frame; 4. Servo press; 401. Electric upper clamp; 5. Down-press floating fixture; 501. Electric lower clamp; 6. Electrical control cabinet; 7. Human-machine interface; 8. Changing fixture; 9. Display screen; 10. Fan; 11. Lockable universal wheel. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] like Figures 1 to 2 As shown, a sliding load testing device proposed in this embodiment includes a welding lower frame 1, a safety grating 2, a C-shaped welding frame 3, a servo press 4, a downward pressing floating tool 5, an electrical control cabinet 6, a human-machine interface 7 and a changing tool 8;

[0022] The top of the welding lower frame 1 is fixedly connected to the upper frame 101, the safety grating 2 is fixedly installed on the front side of the upper frame 101, the C-shaped welding frame 3 is fixedly connected between the top inner wall of the upper frame 101 and the top rear side of the welding lower frame 1, the servo press 4 is fixedly installed on the top inner wall of the upper frame 101, the downward pressing floating tooling 5 is fixedly installed on the top of the welding lower frame 1, the electrical control cabinet 6 is fixedly installed on the rear side of the welding lower frame 1, the human-machine interface 7 is fixedly installed on the right side of the upper frame 101, and the changing tooling 8 is fixedly installed on the right bottom of the upper frame 101;

[0023] The human-machine interface 7 includes a PLC controller, an electric upper clamp 401 is installed at the bottom end of the output shaft of the servo press 4, and an electric lower clamp 501 is installed on the downward pressing floating tooling 5. The servo press 4, the electric lower clamp 501 and the electric upper clamp 401 are all electrically connected to the PLC controller and the electrical control cabinet 6. The safety light grating 2 is electrically connected to the PLC controller. The safety light grating 2 is used to transmit a signal to the PLC controller to trigger an emergency stop control when it senses human entry; the set electric lower clamp 501 is used to clamp the booster of the hollow tube product when it is inserted, and the set electric upper clamp 401 is used to clamp the hollow tube product to be tested for sliding load. The set changing tooling 8 is used to insert and support the booster to be used.

[0024] Specifically, a same tension and pressure sensor is fixedly connected between the bottom end of the output shaft of the servo press 4 and the electric upper clamp 401. The electric upper clamp 401 is installed at the bottom end of the output end of the servo press 4 through the tension and pressure sensor. A display screen 9 is fixedly installed on the front top of the upper frame 101. The display screen 9 and the tension and pressure sensor are both electrically connected to the PLC controller, wherein the display screen 9 is used to be controlled by the PLC controller to display the tension and pressure value transmitted by the tension and pressure sensor.

[0025] Furthermore, a fan 10 is installed on the top front side of the upper frame 101 and is tilted forward and downward. The fan 10 is used to blow air to dissipate heat to personnel when the ambient temperature is high.

[0026] Furthermore, the bottom of the welding lower frame 1 is rectangular and rotatably mounted with six universal wheels 11 with locks. The universal wheels 11 with locks are provided to facilitate personnel to flexibly move the entire device.

[0027] Furthermore, a barcode scanner located on the rear side of the electric lower clamp 501 is fixedly installed on the front side of the C-shaped welding frame 3. The barcode scanner is electrically connected to the PLC controller. The barcode scanner is used to scan the product code on the surface of the hollow tube product when the booster is inserted into the electric lower clamp 501 and transmit it to the PLC controller. The PLC controller controls the display screen 9 to display and record product information.

[0028] The method of using this embodiment is as follows: when using, first manually insert the booster of the hollow tube product into the electric lower clamping jaw 501 of the downward pressing floating tooling 5, the barcode scanner scans the product code on the surface of the booster and transmits it to the PLC controller, the PLC controller controls the display screen 9 to display and record the product information, puts the oiled hollow tube product on the booster, and places the hollow tube product to the bottom, presses the start button of the human-machine interface 7, the PLC controller controls the electric lower clamping jaw 501 to start clamping the booster, and controls the servo press 4 to start forward, so that it drives the electric upper clamping jaw 401 to move downward through the pull pressure sensor, and controls the electric upper clamping jaw 401 to clamp the hollow tube product, P The LC controller continues to control the servo press 4 to start the reverse cycle twice. The servo press 4 drives the electric upper clamping jaw 401 to move up and down twice through the tension and pressure sensor, so as to drive the clamped hollow tube product to slide up and down twice. The tension and pressure sensor detects the tension and pressure during the up and down movement and transmits it to the PLC controller. The PLC controller controls the display screen 9 to display the tension and pressure and records the tension and pressure value to complete the test of the sliding force of the hollow tube product on the booster. After the test is completed, the PLC controller controls the electric upper clamping jaw 401 and the electric lower clamping jaw 501 to relax the clamping force on the hollow tube product and the booster respectively, and controls the servo press 4 to rise and reset, so that personnel can remove the hollow tube product and the booster.

[0029] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A sliding load testing device, characterized in that: It includes a welding lower frame (1), a safety grating (2), a C-type welding frame (3), a servo press (4), a downward pressing floating tool (5), an electrical control cabinet (6), a human-machine interface (7) and a tool changer (8); The top of the welding lower frame (1) is fixedly connected to the upper frame (101), the safety grating (2) is fixedly mounted on the front side of the upper frame (101), the C-shaped welding frame (3) is fixedly connected between the top inner wall of the upper frame (101) and the top rear side of the welding lower frame (1), the servo press (4) is fixedly mounted on the top inner wall of the upper frame (101), the downward pressing floating tool (5) is fixedly mounted on the top of the welding lower frame (1), the electrical control cabinet (6) is fixedly mounted on the rear side of the welding lower frame (1), the human-machine interface (7) is fixedly mounted on the right side of the upper frame (101), and the changing tool (8) is fixedly mounted on the right bottom of the upper frame (101); The human-machine interface (7) includes a PLC controller, an electric upper clamp (401) is installed at the bottom end of the output shaft of the servo press (4), and an electric lower clamp (501) is installed on the downward pressing floating tooling (5), and the servo press (4), the electric lower clamp (501) and the electric upper clamp (401) are all electrically connected to the PLC controller and the electrical control cabinet (6).

2. The sliding load testing device according to claim 1, characterized in that: A same tension and pressure sensor is fixedly connected between the bottom end of the output shaft of the servo press (4) and the electric upper clamp (401), and the electric upper clamp (401) is installed at the bottom end of the output end of the servo press (4) through the tension and pressure sensor. A display screen (9) is fixedly installed on the top of the front side of the upper frame (101), and the display screen (9) and the tension and pressure sensor are both electrically connected to the PLC controller.

3. The sliding load testing device according to claim 1, characterized in that: A fan (10) is installed on the top front side of the upper frame (101) and is tilted forward and downward.

4. The sliding load testing device according to claim 1, characterized in that: The bottom of the welded lower frame (1) is rectangular and rotatably mounted with six universal wheels (11) with locks.

5. The sliding load testing device according to claim 1, characterized in that: A barcode scanner located at the rear side of the electric lower clamping jaw (501) is fixedly mounted on the front side of the C-shaped welding frame (3), and the barcode scanner is electrically connected to the PLC controller.

6. The sliding load testing device according to claim 2, characterized in that: The display screen (9) is used to be controlled by the PLC controller to display the tension and pressure values ​​transmitted by the tension and pressure sensors.

7. The sliding load testing device according to claim 1, characterized in that: The safety light grid (2) is electrically connected to the PLC controller.

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