Measuring device for measuring shearing force of projection welding of torque tube balance block

Abstract

The utility model discloses a measuring device for measuring shearing force of projection welding of a torque tube balance block, which comprises a bottom plate, a mounting plate, a supporting block and a stop block are sequentially arranged on the bottom plate, the mounting plate is connected with a driving piece, a driving rod of the driving piece is connected with a pressure sensor, the supporting block is used for supporting a torque tube, and the stop block is used for stopping the torque tube. The stop block is provided with a stop hole only allowing the torque tube to pass through, the projection welding abuts against the stop block, and the end, without the projection welding, of the torque tube abuts against the pressure sensor. By means of the mode, the projection welding shear strength detection device can automatically detect the real projection welding shear strength, and is simple in structure, not prone to damage, long in service life and low in cost.

Description

Technical Field

[0001] The utility model relates to the technical field of shear force measurement, in particular to a measuring device for measuring the shear force of projection welding of a torsion tube balance weight. Background Technique

[0002] The torsion tube and the balance weight are connected by resistance projection welding, and the weight and size of the balance weight are determined according to the dynamic balance measurement results. There may be cases of false welding or weak welding in resistance projection welding, which will cause the balance weight to fall off, generate noise, and cause strong complaints from customers. The problem of effective detection of projection welding shear force needs to be solved urgently.

[0003] The existing method for measuring the strength of resistance projection welding between a torsion tube and a balance weight is chisel hammering. The torsion tube is fixed on the detection table, the chisel is aligned with the gap between the torsion tube and the balance weight, and the chisel is hammered with a hammer. The strength is judged to meet the requirements according to the number of hammer blows and the remaining weld points after falling off.

[0004] However, manual chisel hammering is inefficient, has potential safety hazards, and cannot determine the true projection welding shear force. Moreover, judging whether the strength meets the requirements by the number of hammer blows and the remaining weld points is mainly dominated by human factors, with large errors and prone to incorrect judgments. Content of the Utility Model

[0005] The main technical problem to be solved by the utility model is to provide a measuring device for measuring the shear force of projection welding of a torsion tube balance weight, which can automatically detect the true size of the projection welding shear strength, has a simple structure, is not easily damaged, has a long service life and low cost.

[0006] To solve the above technical problem, a technical solution adopted by the utility model is: to provide a measuring device for measuring the shear force of projection welding of a torsion tube balance weight, including: a bottom plate, on which an installation plate, a support block and a blocking block are sequentially arranged. The installation plate is connected with a driving member, the driving rod of the driving member is connected with a pressure sensor, the support block is used to support the torsion tube, the blocking block is provided with a blocking hole through which only the torsion tube can pass, the projection welding abuts against the blocking block, and one end of the torsion tube without projection welding abuts against the pressure sensor.

[0007] Preferably, the pressure sensor is connected with a top head, and one end of the torsion tube without projection welding abuts against the top head.

[0008] Preferably, the driving rod of the driving member is connected with a mounting seat, and the pressure sensor is mounted on the mounting seat.

[0009] Preferably, the sides of the installation plate and the blocking block are commonly connected with a reinforcing rib.

[0010] Preferably, the support block is provided with a sliding groove matched with the torsion tube.

[0011] The beneficial effects of the present utility model are as follows:

[0012] The driving member provides a thrust to the torsion tube, and in cooperation with the blocking hole of the blocking block, it enables the projection welding to not pass through the blocking hole while the torsion tube can pass through the blocking hole. Thus, under the action of the thrust, the projection welding is forcibly pushed off the torsion tube, and at this time, the pressure sensor measures the maximum shear force of the projection welding joint. With this device, the influence of human factors during manual measurement can be avoided, the error is greatly reduced, the device has a simple structure, a long service life, and a low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is the overall structural schematic diagram of the present utility model;

[0014] Figure 2 is the top view of the present utility model.

[0015] The markings of each component in the drawings are as follows:

[0016] 1, base plate; 2, mounting plate; 3, support block; 4, blocking block; 5, driving member; 6, pressure sensor; 7, blocking hole; 8, top head; 9, mounting seat; 10, reinforcing rib; 11, torsion tube; 12, projection welding. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] In order to make the above-mentioned objects, features, and advantages of the present utility model more obvious and understandable, the following detailed description of the specific embodiments of the present utility model will be made in conjunction with the drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0018] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0019] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0020] In the present utility model, unless otherwise clearly specified and defined, terms such as "installed", "connected", "joined", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0021] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0022] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0023] For physical quantities in the formula, if not separately marked, they should be understood as the basic quantities of the basic units of the International System of Units, or derived quantities derived from the basic quantities through mathematical operations such as multiplication, division, differentiation or integration.

[0024] Examples:

[0025] Reference Figure 1 and Figure 2, A measuring device for measuring the shear force of projection welding of a torsion tube balance weight, comprising: a bottom plate 1, on which an installation plate 2, a support block 3 and a blocking block 4 are sequentially bolted. The installation plate 2 is bolted with a driving member 5, and the driving member 5 can be a servo motor module, a cylinder, a hydraulic cylinder, etc. The driving rod of the driving member 5 is connected with a pressure sensor 6. The support block 3 is used to support the torsion tube 11. A blocking hole 7 that only allows the torsion tube 11 to pass through is opened on the blocking block 4. The projection welding 12 abuts against the blocking block 4, and one end of the torsion tube 11 without the projection welding 12 abuts against the pressure sensor 6.

[0026] Reference Figure 1 and Figure 2 , When the driving member 5 operates to push the pressure sensor 6 to move towards the blocking block 4, since the blocking hole 7 on the blocking block 4 blocks the passage of the projection welding 12, the pressure is thus conducted to the projection welding 12 and the blocking block 4. When the driving member 5 continuously increases the thrust, the projection welding 12 on the torsion tube 11 will be forcibly pushed off. At this time, the pressure sensor 6 will measure the maximum shear force of the projection welding 12 solder joint, and the operator records the value. After the measurement is completed, retract the driving rod of the driving member 5, and the torsion tube 11 can be removed.

[0027] Reference Figure 1 and Figure 2 , In order to make the connection between the torsion tube 11 and the pressure sensor 6 more stable, the pressure sensor 6 is fixedly connected with a top head 8, and one end of the torsion tube 11 without the projection welding 12 is sleeved into the top head 8 and abuts against the top head 8.

[0028] Reference Figure 1 and Figure 2 , In order to facilitate the installation of the pressure sensor on the driving rod of the driving member 5, the driving rod of the driving member 5 is screwed with a mounting seat 9, and the pressure sensor 6 is installed on the mounting seat 9, thereby installing the pressure sensor 6 on the driving rod of the driving member 5.

[0029] Reference Figure 1 and Figure 2 , The sides of the installation plate 2 and the blocking block 4 are jointly connected with a reinforcing rib 10, and the reinforcing rib 10 plays a role in strengthening and fixing, so that the blocking block 4 is more firm on the bottom plate 1.

[0030] Reference Figure 1 and Figure 2 , The support block 3 is provided with a chute that matches the torsion tube 11. On the one hand, it can better push the torsion tube 11, and on the other hand, it can also correct the position of the torsion tube 11, so that both ends of the torsion tube 11 are in appropriate positions.

[0031] Operation process: Place the torque tube 11 welded with balance weights on the support block 3. One end of the torque tube 11 welded with balance weights faces the blocking block 4, and the other end is sleeved on the top head 8. Start the driving member 5. Under the action of the thrust, the torque tube 11 starts to move. The torque tube 11 normally passes through the blocking hole 7 of the blocking block 4, while the balance weights cannot pass through. Thus, the balance weights are forcibly pushed off the torque tube 11 under the continuously increasing thrust. At this time, the pressure sensor 6 will measure the maximum shear force of the projection weld 12. After the measurement is completed, retract the driving rod on the driving member 5 and remove the torque tube 11.

[0032] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present invention.

Claims

1. A measuring device for measuring the shear force of a projection weld of a torque tube balance block, characterized in that: include: A base plate (1), wherein a mounting plate (2), a support block (3) and a blocking block (4) are sequentially arranged on the base plate (1), the mounting plate (2) is connected to a driving member (5), a driving rod of the driving member (5) is connected to a pressure sensor (6), the support block (3) is used to support a torque tube (11), a blocking hole (7) is provided on the blocking block (4) through which only the torque tube (11) can pass, the projection weld (12) abuts against the blocking block (4), and one end of the torque tube (11) without the projection weld (12) abuts against the pressure sensor (6).

2. A measuring device for measuring the shear force of projection welding of a torque tube balance block according to claim 1, characterized in that: The pressure sensor (6) is connected to a plug (8), and one end of the torque tube (11) without the projection weld (12) abuts against the plug (8).

3. A measuring device for measuring the shear force of projection welding of a torque tube balance block according to claim 2, characterized in that: The driving rod of the driving member (5) is connected to a mounting seat (9), and the pressure sensor (6) is mounted on the mounting seat (9).

4. A measuring device for measuring the shear force of projection welding of a torque tube balance block according to claim 1, characterized in that: The sides of the mounting plate (2) and the blocking block (4) are commonly connected with reinforcing ribs (10).

5. The device for measuring the shear force of projection welding of a torque tube balance block according to claim 1, characterized in that: The support block (3) is provided with a sliding groove which matches with the torque tube (11).

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