Self-tapping pre-pressure loading device

Abstract

The utility model relates to a self-tapping pre-pressure loading device which comprises a fixed frame assembly, a servo system assembly, a pre-pressing assembly, a pulley assembly, a cable assembly, a sliding rail assembly and a balance block assembly, the pre-pressing assembly is installed on the servo system assembly, and the servo system assembly is arranged on one side of the fixed frame assembly in a sliding mode through the sliding rail assembly. One end of the cable assembly is connected with the servo system assembly, the other end of the cable assembly bypasses the pulley assembly and then is connected with the balance block assembly, and the balance block assembly is arranged in the fixed frame assembly; the servo system assembly is driven by the cable assembly, the balance block assembly is driven by the pulley assembly to balance the whole vertically downward force, and the effect of applying pre-pressure when the self-tapping screw is tested is achieved. A mechanical pulley block structure is adopted, the pre-pressing assembly interacts with the balance assembly, the structure is stable and reliable, the pre-pressure can be increased or decreased, and the problem that in the self-tapping testing process, due to the fact that the pre-pressure loading is too large, the testing process is not controlled in the midway is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to self -drilling pre -pressure loading application technical field especially self -drilling pre -pressure loading device. BACKGROUND

[0002] In the fastener self -drilling screw test equipment, the pre -pressure loading is needed in the testing process when testing the self -drilling screw, and the pre -pressure loading is continuously in the testing process, and the pre -pressure loading cannot be additionally applied in the testing process, which causes the general equipment to need manual control loading pre -pressure in the testing process, thereby the self -drilling screw testing process is inconvenient, and data is inaccurate, so a self -drilling pre -pressure loading device is needed to solve this technical application demand. UTILITY MODEL CONTENT

[0003] In view of the deficiencies in the prior art, the utility model aims at providing a self -drilling pre -pressure loading device, which comprises a fixed frame assembly, a servo system assembly, a pre -pressure assembly, a pulley assembly, a cable assembly, a guide rail assembly and a balance block assembly, and effectively solves the technical application demand of self -drilling pre -pressure loading.

[0004] The utility model aims at realizing the above-mentioned utility model through the following technical schemes:

[0005] The self -drilling pre -pressure loading device comprises a fixed frame assembly, a servo system assembly, a pre -pressure assembly, a pulley assembly, a cable assembly, a slide rail assembly and a balance block assembly, the pre -pressure assembly is installed on the servo system assembly, the servo system assembly is slidably arranged on one side of the fixed frame assembly through the slide rail assembly, one end of the cable assembly is connected with the servo system assembly, and the other end is connected with the balance block assembly after passing through the pulley assembly, and the balance block assembly is arranged in the fixed frame assembly.

[0006] The servo system assembly is driven by the cable assembly, the balance block assembly is driven by the pulley assembly to balance the whole vertical downward force, and the pre -pressure effect is achieved when testing the self -drilling screw.

[0007] As a further technical scheme of the utility model, the fixed frame assembly comprises a frame bottom plate, a frame top plate, three side plates and a guide rail mounting plate, the three side plates and the guide rail mounting plate are fixedly connected between the frame bottom plate and the frame top plate, and the frame bottom plate, the three side plates, the guide rail mounting plate and the frame top plate form a cavity accommodating the balance block assembly.

[0008] As a further technical scheme of the utility model: the servo system assembly includes installation frame and servo motor and speed reducer arranged in the installation frame, the servo motor is connected with the speed reducer, the output shaft of the speed reducer is arranged towards the downside, the output shaft of the speed reducer is connected with the drive head through the shaft coupling, the pre-pressing assembly is arranged on the top surface of the installation frame.

[0009] As a further technical scheme of the utility model: the pre-pressing assembly includes multiple counterweight weights of different weights, and the counterweight weights are arranged on the installation frame.

[0010] As a further technical scheme of the utility model: the pulley assembly includes a pulley mounting plate and two pulleys, the pulley mounting plate is fixed on the frame top plate, the two pulleys are rotatably connected to one side of the pulley mounting plate, and limiting grooves are formed in the two pulleys.

[0011] The cable assembly includes a cable, a full-tooth expansion bolt and a full-tooth expansion screw, the full-tooth expansion bolt is arranged in the cavity, the balance block assembly is mounted on the full-tooth expansion bolt, and the full-tooth expansion screw is fixed to one side of the installation frame.

[0012] One end of the cable is connected with the full-tooth expansion bolt, the other end is wrapped around the two limiting grooves upwards, then extends downwards and is connected with the full-tooth expansion screw.

[0013] As a further technical scheme of the utility model: the balance block assembly includes multiple counterweight blocks of different weights, and the multiple counterweight blocks are placed on the full-tooth expansion bolt.

[0014] As a further technical scheme of the utility model: the slide rail assembly includes two guide rails and two sliders respectively and slidingly arranged on the two guide rails, the two guide rails are fixed in parallel on the guide rail mounting plate, and the two sliders are fixed to one side of the installation frame.

[0015] As a further technical scheme of the utility model: the installation frame is detachably and fixedly connected with a control handle at opposite sides.

[0016] In summary, the utility model has at least one of the following beneficial technical effects:

[0017] The utility model discloses a self tapping pre pressure loading device, it has adopted mechanical type pulley block structure, and pre pressure subassembly and balance subassembly interact, and the structure is stable and reliable, and pre pressure can increase pressure or reduce, solve the self tapping test process because of pre pressure loading too big and test midway not control etc. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is whole structure schematic diagram of the utility model.

[0019] Figure 2 It is sectional view of the utility model.

[0020] Signification of drawing: 1, fixed frame subassembly, 11, frame bottom plate, 12, frame top plate, 13, side plate, 14, guide rail mounting plate, 15, cavity, 2, servo system subassembly, 21, mounting frame, 22, servo motor, 23, speed reducer, 24, shaft coupling, 25, drive head, 3, pre pressure subassembly, 4, pulley subassembly, 41, pulley mounting plate, 42, pulley, 421, limit groove, 5, cable rope subassembly, 51, cable rope, 52, full toothed hinge bolt, 53, full toothed hinge screw, 6, slide rail subassembly, 61, guide rail, 62, sliding block, 7, counterweight block subassembly, 8, control handle. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, and not all the embodiments; based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] In the description of the present application, it should be explained that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present application, it is necessary to explain that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be understood broadly, for example, "connected" can be fixedly connected, or detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances. Embodiments

[0024] With reference to Figure 1 The self-tapping pre-pressure loading device comprises a fixed frame assembly 1, a servo system assembly 2, a pre-pressure assembly 3, a pulley assembly 4, a cable assembly 5, a sliding rail assembly 6 and a balance block assembly 7. The pre-pressure assembly 3 is mounted on the servo system assembly 2. The servo system assembly 2 is slidably arranged on one side of the fixed frame assembly 1 through the sliding rail assembly 6. One end of the cable assembly 5 is connected with the servo system assembly 2, and the other end is connected with the balance block assembly 7 after passing through the pulley assembly 4. The balance block assembly 7 is arranged in the fixed frame assembly 1.

[0025] The servo system assembly 2 is driven by the cable assembly 5, and the balance block assembly 7 is driven by the pulley assembly 4 to balance the entire downward force, so as to exert a pre-pressure effect when testing the self-tapping screw. The entire testing process does not need to exert an additional pre-pressure, and is simple and intuitive, stable in control, accurate in testing, and effectively solves the technical application requirement of self-tapping pre-pressure loading.

[0026] Preferably, a mechanical pulley assembly is adopted to balance the pre-pressure block mode, the entire testing process realizes the pre-pressure loading effect, and is simple and intuitive in operation and accurate in data. Preferably, a fixed frame is adopted, and the guide rail assembly slides up and down to reduce friction loss, and the cable assembly is used to balance and accurately control the pre-pressure in the loading process.

[0027] The fixed frame assembly 1 comprises a frame bottom plate 11, a frame top plate 12, three side plates 13 and a guide rail mounting plate 14. The three side plates 13 and the guide rail mounting plate 14 are fixedly connected between the frame bottom plate 11 and the frame top plate 12. The frame bottom plate 11, the three side plates 13, the guide rail mounting plate 14 and the frame top plate 12 form a cavity 15 for accommodating the balance block assembly 7.

[0028] With reference to Figure 1, servo system assembly 2 includes mounting frame 21 and servo motor 22 and speed reducer 23 arranged in mounting frame 21, servo motor 22 and speed reducer 23 are connected, the output shaft of speed reducer 23 is arranged towards the downward, the output shaft of speed reducer 23 is connected with driving head 25 through coupling 24, pre-pressing assembly 3 is arranged on the top surface of mounting frame 21. Pre-pressing assembly 3 includes a plurality of counterweight weights of different weights, and the counterweight weights are arranged on the mounting frame 21.

[0029] Referring to Figure 1 , pulley assembly 4 includes pulley mounting plate 41 and two pulleys 42, pulley mounting plate 41 is fixed on frame top plate 12, two pulleys 42 are rotatably connected on one side of pulley mounting plate 41, and limiting grooves 421 are formed in two pulleys 42. Figure 2 , cable assembly 5 includes cable 51, full-tooth expansion bolt 52 and full-tooth expansion screw 53, full-tooth expansion bolt 52 is arranged in cavity 15, balance block assembly 7 is mounted on full-tooth expansion bolt 52, and full-tooth expansion screw 53 is fixed on one side of mounting frame 21; one end of cable 51 is connected with full-tooth expansion bolt 52, the other end is wound around two limiting grooves 421 upwards, then extends downwards and is connected with full-tooth expansion screw 53.

[0030] Referring to Figure 2 , balance block assembly 7 includes a plurality of counterweight blocks of different weights, and the plurality of counterweight blocks are placed on full-tooth expansion bolt 52. Slide rail assembly 6 includes two guide rails 61 and sliding blocks 62 respectively arranged on the two guide rails 61, the two guide rails 61 are fixed on guide rail mounting plate 14 in parallel, and the two sliding blocks 62 are fixed on one side of mounting frame 21. The opposite sides of mounting frame 21 are respectively detachably fixedly connected with control handle 8.

[0031] The implementation principle of the utility model is: the utility model discloses a self-tapping pre-pressing force loading device, which adopts a mechanical pulley 42 group structure, pre-pressing assembly 3 and balance assembly interact, the structure is stable and reliable, the pre-pressing force can be increased or reduced, the reasons such as not controlling in the middle of testing due to excessive pre-pressing force in the self-tapping testing process are solved, and the pre-pressing force required for testing cannot be adjusted due to data size when loading and testing on site is avoided, and the utility model effectively solves the technical application requirement of self-tapping pre-pressing force loading.

[0032] The embodiments of the specific embodiment are the preferred embodiments of the utility model, not limited to the protection scope of the utility model, so: equivalent changes made according to the structure, shape and principle of the utility model should be covered in the protection scope of the utility model.

Claims

1. A self-tapping pre-stress loading device, characterized in that, Including fixed frame assembly (1), servo system assembly (2), pre-press assembly (3), pulley assembly (4), cable assembly (5), slide rail assembly (6) and counterweight assembly (7), the pre-press assembly (3) is installed on the servo system assembly (2), the servo system assembly (2) is slidably arranged on one side of the fixed frame assembly (1) through the slide rail assembly (6), one end of the cable assembly (5) is connected with the servo system assembly (2), the other end is connected with the counterweight assembly (7) after passing through the pulley assembly (4), and the counterweight assembly (7) is arranged in the fixed frame assembly (1); The servo system assembly (2) is driven by the cable assembly (5), the counterweight assembly (7) is driven by the pulley assembly (4) to balance the whole vertical downward force, so that the pre-pressing force is applied when testing self-tapping screws.

2. The self-tapping pre-stress loading device of claim 1, wherein, The fixed frame assembly (1) includes a frame bottom plate (11), a frame top plate (12), three side plates (13) and a guide rail mounting plate (14), the three side plates (13) and the guide rail mounting plate (14) are fixedly connected between the frame bottom plate (11) and the frame top plate (12), and the frame bottom plate (11), the three side plates (13), the guide rail mounting plate (14) and the frame top plate (12) form a cavity (15) for accommodating the counterweight assembly (7).

3. The self-tapping pre-stress loading device of claim 2, wherein, The servo system assembly (2) includes a mounting frame (21), a servo motor (22) and a speed reducer (23) arranged in the mounting frame (21), the servo motor (22) is connected with the speed reducer (23), the output shaft of the speed reducer (23) is arranged downward, the output shaft of the speed reducer (23) is connected with a driving head (25) through a shaft coupling (24), and the pre-press assembly (3) is arranged on the top surface of the mounting frame (21).

4. The self-tapping pre-stress loading device of claim 3, wherein, The pre-press assembly (3) includes a plurality of counterweight weights of different weights, and the counterweight weights are arranged on the mounting frame (21).

5. The self-tapping pre-stress loading device of claim 3, wherein, The pulley assembly (4) includes a pulley mounting plate (41) and two pulleys (42), the pulley mounting plate (41) is fixed on the frame top plate (12), and the two pulleys (42) are rotatably connected on one side of the pulley mounting plate (41), and the two pulleys (42) are provided with limiting grooves (421); The cable assembly (5) includes a cable (51), a full-tooth hinge bolt (52) and a full-tooth hinge screw (53), the full-tooth hinge bolt (52) is arranged in the cavity (15), the counterweight assembly (7) is mounted on the full-tooth hinge bolt (52), and the full-tooth hinge screw (53) is fixed on one side of the mounting frame (21); One end of the cable (51) is connected with the full-tooth hinge bolt (52), the other end is upwardly wound around the two limiting grooves (421), and then downwardly extended and connected with the full-tooth hinge screw (53).

6. The self-tapping pre-stress loading device of claim 5, wherein, The counterweight assembly (7) comprises a plurality of counterweights of different weights, and the plurality of counterweights are placed on the full toothed bolt (52).

7. The self-tapping pre-stress loading device of claim 6, wherein, The slide rail assembly (6) comprises two guide rails (61) and sliders (62) respectively slidably arranged on the two guide rails (61), the two guide rails (61) are fixed on the guide rail mounting plate (14) in parallel, and the two sliders (62) are fixed on one side of the mounting frame (21).

8. The self-tapping pre-stress loading device of claim 3, wherein, Opposite sides of the mounting frame (21) are detachably and fixedly connected with control handles (8).

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