Checking fixture overturning, rotating and pressing device for deep and narrow section type longitudinal beam

Abstract

The utility model relates to an overturning, rotating and pressing device for a testing fixture of a deep and narrow section type longitudinal beam, and aims to solve the problem that a traditional pressing device cannot effectively press the deep and narrow section type longitudinal beam. The device comprises a base, a cross beam, a pressing rod, a connecting rod, a handle and the like, according to the lever principle, the pressing rod can penetrate into the bottom of the longitudinal beam to achieve pressing by pressing down the handle, and the pressing rod is loosened by pulling up the handle. The device has a self-locking function, is stable and reliable in pressing, is simple and quick to operate, and greatly improves the detection efficiency and accuracy. In addition, the pressing device is simple in structure, does not need a complex electric or hydraulic system, is low in maintenance cost, and is suitable for detection of various deep and narrow section type longitudinal beams.

Description

Technical Field

[0001] This utility model relates to the field of automobile production technology, and in particular to a fixture flipping and rotating clamping device for a deep and narrow cross-section longitudinal beam. Background Technology

[0002] In the automotive manufacturing and parts inspection field, deep-narrow cross-section longitudinal beams are important structural components, and their dimensional accuracy and shape stability are crucial to the safety and performance of the entire vehicle. However, due to their unique structural characteristics—deep and narrow grooves—these longitudinal beams present significant challenges to fixing and clamping during the inspection process. Traditional fixture clamps often have design limitations and are difficult to effectively adapt to the special shape of deep-narrow cross-section longitudinal beams, leading to swaying or displacement of the beams during inspection, which seriously affects the accuracy and efficiency of measurements.

[0003] Specifically, most existing clamping devices employ direct clamping or clamping methods. For longitudinal beams with deep and narrow groove structures, these methods either fail to penetrate the groove effectively or reduce testing efficiency due to complex operation and difficult adjustment. Furthermore, while some clamping devices can achieve a certain degree of clamping effect, they lack a self-locking function during the clamping process, requiring continuous external force to maintain the clamping state. This not only increases the workload of operators but may also lead to unstable clamping force due to changes in external force during testing, thus affecting the measurement results. Utility Model Content

[0004] The purpose of this invention is to provide a fixture flipping and rotating clamping device for deep and narrow cross-section longitudinal beams, which can easily adapt to deep and narrow groove structures, achieve a stable and reliable clamping effect, and is easy to operate with a self-locking function to ensure the accuracy and efficiency of the inspection process.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a fixture flipping and rotating clamping device for deep and narrow cross-section longitudinal beams, the fixture flipping and rotating clamping device for deep and narrow cross-section longitudinal beams comprising:

[0006] A base, which is fixed to the workbench;

[0007] A crossbeam, which is fixed to the top of the base;

[0008] A pressure bar, which is slidably fitted onto the crossbeam;

[0009] A connecting rod, one end of which is hinged to the crossbeam;

[0010] The handle has its upper part at the base hinged to the connecting rod, and its lower part at the base hinged to the pressure rod.

[0011] In one embodiment, a limiting stop plate is further included, the limiting stop plate being disposed on the connecting rod.

[0012] In one embodiment, a pressure head is further included, which is disposed at the bottom of the pressure rod and is made of copper.

[0013] In one embodiment, the pressure rod includes an outer rod and an inner rod. The outer rod is slidably fitted onto the crossbeam. The bottom of the outer rod is provided with an internal threaded hole. The upper section of the inner rod is provided with an external thread. The inner rod is threaded into the internal threaded hole of the outer rod. The pressure head is located at the bottom of the inner rod.

[0014] In one embodiment, a positioning pin is also included, which is fixed to the worktable and engages with a positioning hole at the bottom of the deep narrow section longitudinal beam.

[0015] In one embodiment, a side positioning part is further included. The side positioning part is fixed on the worktable and is disposed on both sides of the deep and narrow cross-section longitudinal beam. The side positioning part is provided with a transverse positioning pin, which is inserted into the transverse positioning hole of the deep and narrow cross-section longitudinal beam.

[0016] The above-described technical solutions in the embodiments of this utility model have at least the following technical effects or advantages:

[0017] The present invention provides a rotating clamping device for a deep-narrow cross-section longitudinal beam. Through the cooperation of a handle, connecting rod, and pressure rod, the device easily inserts the pressure rod deep into the bottom of the deep-narrow cross-section longitudinal beam, achieving a stable and reliable clamping effect. This design effectively solves the problem that traditional clamping devices cannot adapt to deep-narrow groove structures due to structural limitations, ensuring the stability of the longitudinal beam during the inspection process and improving measurement accuracy. Furthermore, the clamping device is extremely easy to operate; clamping and loosening are completed simply by pressing down or pulling up the handle. This design greatly simplifies the operation process, reduces the labor intensity of operators, and improves inspection efficiency. Moreover, in the clamped state, when the hinge points between the handle and pressure rod, the connecting rod, and the connecting rod are on the same straight line, the device has a self-locking function, maintaining a stable clamping force without the need for continuous external force application. This feature not only ensures safety during the inspection process but also avoids fluctuations in clamping force caused by changes in external force, further improving the accuracy and reliability of the measurement. The clamping device of this invention adopts a simple mechanical structure and does not require a complex electrical or hydraulic system, thus having higher reliability and lower maintenance costs.

[0018] In summary, the inspection fixture flipping and rotating clamping device for deep and narrow cross-section longitudinal beams provided by this utility model not only effectively solves the problems existing in traditional clamping devices when clamping deep and narrow cross-section longitudinal beams, but also improves inspection efficiency and accuracy through simple operation, self-locking function and simple and reliable structural design. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art 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.

[0020] Figure 1 A schematic diagram of the fixture flipping and rotating clamping device for the deep and narrow cross-section longitudinal beam provided in this embodiment of the utility model in the released state;

[0021] Figure 2 A schematic diagram of the structure of the inspection fixture flipping and rotating clamping device for the deep and narrow cross-section longitudinal beam provided in this embodiment of the utility model in the clamping state.

[0022] The labels for the various figures are as follows:

[0023] 1. Base; 2. Crossbeam; 3. Pressure rod; 4. Connecting rod; 5. Handle; 6. Limiting plate; 7. Pressure head; 8. Positioning pin; 9. Side positioning part; 10. Deep and narrow section longitudinal beam; 11. Worktable; 31. Outer rod; 32. Inner rod; 91. Transverse positioning pin. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0025] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Furthermore, 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 number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] Please see Figures 1 to 2 This application provides a fixture flipping and rotating clamping device for a deep and narrow cross-section longitudinal beam, including a base 1, a crossbeam 2, a pressure rod 3, a connecting rod 4, and a handle 5. The base 1 is fixed to a workbench 11; the crossbeam 2 is fixed to the top of the base 1; the pressure rod 3 is slidably fitted onto the crossbeam 2; one end of the connecting rod 4 is hinged to the crossbeam 2; the upper side of the base of the handle 5 is hinged to the connecting rod 4, and the lower side of the base of the handle 5 is hinged to the pressure rod 3.

[0029] When it is necessary to tighten the deep and narrow section longitudinal beam 10, simply press down on the handle 5 so that the handle 5 is as shown. Figure 1 As shown, the handle 5 rotates clockwise along its hinge point with the pressure rod 3. During this process, the two hinge points on the handle 5 and the hinge point between the connecting rod 4 and the crossbeam 2 can be considered as the three vertices of a triangle. When the handle 5 is pressed down clockwise, since the lines connecting the two hinge points on the connecting rod 4 and the two hinge points on the handle 5 correspond to the two fixed-length sides of the triangle, when the angle between the straight line connecting the two hinge points on the handle 5 and the pressure rod 3 increases, the third side of the triangle connecting the hinge points of the handle 5 and the pressure rod 3 and the hinge point between the connecting rod 4 and the crossbeam 2 will shorten, causing the pressure rod 3 to slide downwards until it presses against the deep and narrow cross-section longitudinal beam 10 below (e.g., Figure 2 (As shown).

[0030] During the pressing process, because the handle 5 has a long lever arm, the operator can apply a small amount of pressure to make the pressure rod 3 generate a large clamping force, so as to ensure that the pressure rod 3 can clamp the deep and narrow longitudinal beam 10, making the whole clamping process relatively labor-saving.

[0031] Because the pressure bar 3 is relatively slender, it can extend into the deep and narrow section longitudinal beam 10 to press the bottom of the deep and narrow section longitudinal beam 10 without being restricted by the deep and narrow groove of the deep and narrow section longitudinal beam 10.

[0032] like Figure 2 As shown, when the pressure rod 3 is pressed down to the position, the hinge points between the handle 5 and the pressure rod 3 and the connecting rod 4, as well as the hinge points between the connecting rod 4 and the crossbeam 2, are on the same straight line. That is, the direction of the upward reaction force of the pressure rod 3 from the deep and narrow cross-section longitudinal beam 10 coincides with the direction of the line connecting the two hinge points of the connecting rod 4 and the direction of the line connecting the two hinge points of the handle 5. As a result, when this reaction force is transmitted to the handle 5 and the connecting rod 4, it is converted into a compressive force on the handle 5 and a tensile force on the connecting rod 4. It will not generate torque on the handle 5 and the connecting rod 4. Therefore, this reaction force cannot make the handle 5 and the connecting rod 4 rotate, thus achieving self-locking.

[0033] In one embodiment, a limiting stop 6 is also included, which is disposed on the connecting rod 4. When the handle 5 is pressed down to tighten the deep and narrow longitudinal beam 10, when the handle 5 is pressed down to the end, the limiting stop 6 can prevent the handle 5 from continuing to rotate clockwise, so that the handle 5 can be pressed down accurately to the desired position by the limiting stop 6. Figure 2 The self-locking position shown ensures that handle 5 is pressed down into place.

[0034] In one embodiment, a pressure head 7 is also included, which is disposed at the bottom of the pressure rod 3 and is made of copper. Compared with the deep and narrow cross-section longitudinal beam 10 of the steel structure, the pressure head 7 made of copper is more flexible and has a certain degree of yielding, so as to ensure that the deep and narrow cross-section longitudinal beam 10 is pressed and fixed, while avoiding excessive pressure that could cause deformation and damage to the deep and narrow cross-section longitudinal beam 10.

[0035] In one embodiment, the pressure rod 3 includes an outer rod 31 and an inner rod 32. The outer rod 31 is slidably fitted onto the crossbeam 2. The bottom of the outer rod 31 is provided with an internal threaded hole. The upper section of the inner rod 32 is provided with an external thread. The inner rod 32 is threadedly fitted into the internal threaded hole of the outer rod 31. The pressure head 7 is provided at the bottom of the inner rod 32.

[0036] By using a threaded connection, the outer rod 31 and the inner rod 32 form a pressure rod 3. When the pressure rod 3 needs to press the deep and narrow section longitudinal beam 10 with different groove depths, it is only necessary to rotate the inner rod 32 according to the groove depth of the deep and narrow section longitudinal beam 10 to adjust the length of the pressure rod 3, so that the pressing can be applied to the pressing and fixing of deep and narrow section longitudinal beam 10 with different groove depths.

[0037] In one embodiment, a positioning pin 8 is further included. The positioning pin 8 is fixed to the worktable 11 and engages with the positioning hole at the bottom of the deep and narrow cross-section longitudinal beam 10. Optionally, a side positioning part 9 is also included. The side positioning part 9 is fixed to the worktable 11 and is disposed on both sides of the deep and narrow cross-section longitudinal beam 10. The side positioning part 9 is provided with a transverse positioning pin 91, which engages with the transverse positioning hole of the deep and narrow cross-section longitudinal beam 10. The positioning pin 8 and the transverse positioning pin 91 in the side positioning part 9 can accurately position the deep and narrow cross-section longitudinal beam 10 onto the worktable 11, so that the clamping device can clamp and fix the deep and narrow cross-section longitudinal beam 10, facilitating subsequent measurement.

[0038] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fixture flipping and rotating clamping device for a deep, narrow cross-section longitudinal beam, characterized in that, The fixture flipping and rotating clamping device for the deep and narrow cross-section longitudinal beam includes: The base is fixed to the worktable; A crossbeam, which is fixed to the top of the base; A pressure bar, which is slidably fitted onto the crossbeam; A connecting rod, one end of which is hinged to the crossbeam; The handle has its upper part at the base hinged to the connecting rod, and its lower part at the base hinged to the pressure rod.

2. The fixture flipping and rotating clamping device for a deep, narrow cross-section longitudinal beam according to claim 1, characterized in that: It also includes a limiting stop plate, which is disposed on the connecting rod.

3. The fixture flipping and rotating clamping device for a deep and narrow cross-section longitudinal beam according to claim 1, characterized in that: It also includes a pressure head, which is disposed at the bottom of the pressure rod and is made of copper.

4. The fixture flipping and rotating clamping device for a deep and narrow cross-section longitudinal beam according to claim 3, characterized in that: The pressure rod includes an outer rod and an inner rod. The outer rod is slidably fitted onto the crossbeam. The bottom of the outer rod is provided with an internal threaded hole. The upper section of the inner rod is provided with an external thread. The inner rod is threaded into the internal threaded hole of the outer rod. The pressure head is located at the bottom of the inner rod.

5. The fixture flipping and rotating clamping device for a deep and narrow cross-section longitudinal beam according to claim 1, characterized in that: It also includes a positioning pin, which is fixed to the worktable and is engaged with the positioning hole at the bottom of the deep and narrow longitudinal beam.

6. The fixture flipping and rotating clamping device for a deep, narrow cross-section longitudinal beam according to claim 1, characterized in that: It also includes a side positioning part, which is fixed on the worktable. The side positioning part is located on both sides of the deep and narrow cross-section longitudinal beam, and a transverse positioning pin is provided on the side positioning part. The transverse positioning pin is inserted into the transverse positioning hole of the deep and narrow cross-section longitudinal beam.

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