Clamping mechanism

Abstract

The utility model discloses a clamping mechanism, which relates to the technical field of automobile manufacturing, and comprises a base, an oil cylinder, a pressing arm and a hinge plate, the upper end of the front side surface of the base is provided with an L-shaped notch part, the inner bottom wall of the notch part is provided with a bottom backing plate, and the inner side wall of the notch part is provided with a side backing plate; a cylinder body of the oil cylinder is fixedly arranged on the front side face of the base and located below the notch part. A piston rod of the oil cylinder is hinged to the lower end of the pressing arm through a connecting plate. A pressing head is arranged at the upper end of the pressing arm; one end of the hinge plate is hinged to the front side face of the base and located below the notch part, and the other end of the hinge plate is hinged to the pressing arm. The device is simple in structure, and the enterprise cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile manufacturing, in particular to a clamping mechanism. Background Art

[0002] The frame is a frame structure that spans the front and rear axles of the car, commonly known as the beam, and is the base of the car. It is generally composed of two longitudinal beams and several cross beams, and is supported on the wheels through the suspension device, the front axle, and the rear axle. The frame must have sufficient strength and rigidity to withstand the load of the car and the impact from the wheels.

[0003] Frame riveting is a key step in the frame assembly process, and the frame needs to be positioned by a clamping mechanism. However, the clamping mechanism of the existing frame riveting production line has a complex structure and high cost. Utility Model Content

[0004] In view of the defects existing in the prior art, the purpose of the utility model is to provide a clamping mechanism with a simple structure and reduce enterprise costs.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is: a clamping mechanism, including a base, a cylinder, a pressure arm and a hinge plate, the upper end of the front side surface of the base is provided with an L-shaped notch portion, the inner bottom wall of the notch portion is provided with a bottom pad, and the inner side wall of the notch portion is provided with a side pad; the cylinder body of the cylinder is fixedly arranged on the front side surface of the base and is located below the notch portion, and the piston rod of the cylinder is hinged to the lower end of the pressure arm through a connecting plate; the upper end of the pressure arm is provided with a pressure head; one end of the hinge plate is hinged to the front side surface of the base and is located below the notch portion, and the other end of the hinge plate is hinged to the pressure arm.

[0006] A further improvement is that the pressing arm is connected to the pressing head via a universal head.

[0007] A further improvement is that the base is provided with a split micro hydraulic station, and the split micro hydraulic station is provided with a pressure sensor.

[0008] A further improvement is that a displacement sensor is provided at a position relative to the base and the side pad.

[0009] A further improvement is that a sub-control box is provided on the rear side of the base.

[0010] A further improvement is that both the base and the oil cylinder are covered with protective covers.

[0011] A further improvement is that a probe rod and a proximity switch are arranged beside the oil cylinder.

[0012] Further improvements are: a mounting block and a sliding block are arranged at positions relative to the base and the side pad, and a positioning pin penetrating the side pad is arranged on the front side of the sliding block; a first thin cylinder is arranged on the rear side of the mounting block, and a piston rod of the first thin cylinder passes through the mounting block and is connected to the rear side of the sliding block.

[0013] A further improvement is that a knob plunger for fixing the positioning pin is provided on the sliding block.

[0014] A further improvement is that it comprises a second thin cylinder, the cylinder body of the second thin cylinder is fixedly mounted on the base, and the piston rod of the second thin cylinder is connected to the bottom of the mounting block through a connecting block.

[0015] The beneficial effects of the utility model are:

[0016] 1. In the utility model, the positioning and clamping of the frame is realized through the cooperation of the oil cylinder, the pressure arm, the pressure head and the pad, and the structure is simple, which reduces the enterprise cost.

[0017] 2. In the present invention, various sensors are provided to improve working accuracy.

[0018] 3. In the utility model, by designing the sliding block to cooperate with the positioning pin, the positioning pin can be used to position the frame while clamping it, thereby improving the working accuracy. In addition, the position of the positioning pin can be adjusted by the first thin cylinder and the second thin cylinder, thereby improving the flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front view of the clamping mechanism in the first embodiment of the utility model;

[0020] Figure 2 It is a top view of the clamping mechanism in the first embodiment of the utility model;

[0021] Figure 3 It is a side view of the clamping mechanism in the first embodiment of the utility model;

[0022] Figure 4 It is a cross-sectional view of the clamping mechanism in the first embodiment of the utility model;

[0023] Figure 5 It is an enlarged schematic diagram of the universal head part in the first embodiment of the utility model.

[0024] Figure 6 It is a side view of the clamping mechanism in the second embodiment of the present utility model;

[0025] Figure 7 It is a cross-sectional view of the clamping mechanism in the second embodiment of the present utility model.

[0026] Reference numerals:

[0027] 1-base; 11-notch; 12-bottom pad; 13-side pad; 14-split micro hydraulic station; 15-pressure sensor; 16-sub-control box; 17-displacement sensor; 18-shield;

[0028] 2-oil cylinder; 21-pressing arm; 22-hinge plate; 23-connecting plate; 24-pressing head; 25-universal head; 26-probe rod;

[0029] 3-mounting block; 31-sliding block; 32-locating pin; 33-knob plunger; 34-first thin cylinder; 35-second thin cylinder; 36-connecting block. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below. The embodiments are shown in the accompanying drawings, wherein the same or similar numbers throughout represent the same or similar elements or elements with the same or similar functions.

[0031] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific protection scope of the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "several" and "a number" is two or more, unless otherwise clearly and specifically defined.

[0033] The following is a further description of the specific implementation of the utility model in conjunction with the drawings of the specification, so that the technical solution and its beneficial effects of the utility model are clearer and more explicit. The following description of the embodiments with reference to the drawings is exemplary and intended to explain the utility model, but cannot be understood as limiting the utility model.

[0034] Embodiment 1

[0035] See also Figure 1 to Figure 5As shown, the embodiment of the utility model provides a clamping mechanism, including a base 1, a cylinder 2, a pressure arm 21 and a hinge plate 22. The upper end of the front side of the base 1 is provided with an L-shaped notch 11, the inner bottom wall of the notch 11 is provided with a bottom pad 12, and the inner side wall of the notch 11 is provided with a side pad 13; the cylinder body of the cylinder 2 is fixedly arranged on the front side of the base 1 and is located below the notch 11, and the piston rod of the cylinder 2 is hinged to the lower end of the pressure arm 21 through a connecting plate 23; the upper end of the pressure arm 21 is provided with a pressure head 24; one end of the hinge plate 22 is hinged to the front side of the base 1 and is located below the notch 11, and the other end of the hinge plate 22 is hinged to the pressure arm 21. Specifically, the pressure arm 21 is connected to the pressure head 24 through a universal head 25. The base 1 is provided with a split micro hydraulic station 14, and the split micro hydraulic station 14 is provided with a pressure sensor 15. A displacement sensor 17 is provided at a position opposite to the base 1 and the side pad 13. A sub-control box 16 is provided on the rear side of the base 1. The base 1 and the oil cylinder 2 are both covered with a protective cover 18. A probe rod 26 and a proximity switch are provided beside the oil cylinder 2.

[0036] Embodiment 2

[0037] See also Figure 6 and Figure 7 As shown, the structure of the embodiment of the utility model is basically the same as that of the first embodiment, and the difference is that, in the present embodiment, the base 1 is provided with a mounting block 3 and a sliding block 31 at positions relative to the side pad 13, and the front side of the sliding block 31 is provided with a positioning pin 32 penetrating the side pad 13; the rear side of the mounting block 3 is provided with a first thin cylinder 34, and the piston rod of the first thin cylinder 34 passes through the mounting block 3 and is connected to the rear side of the sliding block 31. Specifically, the sliding block 31 is provided with a knob plunger 33 for fixing the positioning pin 32. It also includes a second thin cylinder 35, the cylinder body of the second thin cylinder 35 is fixedly mounted on the base 1, and the piston rod of the second thin cylinder 35 is connected to the bottom of the mounting block 3 through a connecting block 36.

[0038] In the description of the specification, the description with reference to the terms "one embodiment", "preferably", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model, and the schematic expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0039] Through the description of the above structure and principle, technicians in the relevant technical field should understand that the present invention is not limited to the above-mentioned specific implementation methods. Improvements and substitutions based on the present invention using the known technology in the field all fall within the protection scope of the present invention and should be defined by the claims.

Claims

1. A clamping mechanism, comprising a base (1), characterized in that: It also comprises an oil cylinder (2), a pressure arm (21) and a hinge plate (22); an L-shaped notch (11) is arranged at the upper end of the front side surface of the base (1); a bottom pad (12) is arranged on the inner bottom wall of the notch (11); and a side pad (13) is arranged on the inner side wall of the notch (11); a cylinder body of the oil cylinder (2) is fixedly arranged on the front side surface of the base (1) and is located below the notch (11); a piston rod of the oil cylinder (2) is hingedly connected to the lower end of the pressure arm (21) through a connecting plate (23); a pressure head (24) is arranged at the upper end of the pressure arm (21); one end of the hinge plate (22) is hingedly connected to the front side surface of the base (1) and is located below the notch (11); and the other end of the hinge plate (22) is hingedly connected to the pressure arm (21).

2. The clamping mechanism according to claim 1, characterized in that: The pressing arm (21) is connected to the pressing head (24) via a universal head (25).

3. The clamping mechanism according to claim 1, characterized in that: The base (1) is provided with a split micro hydraulic station (14), and the split micro hydraulic station (14) is provided with a pressure sensor (15).

4. The clamping mechanism according to claim 1, characterized in that: A displacement sensor (17) is provided at a position where the base (1) and the side pad (13) are opposite to each other.

5. The clamping mechanism according to claim 1, characterized in that: A sub-control box (16) is arranged on the rear side of the base (1).

6. The clamping mechanism according to claim 1, characterized in that: The base (1) and the oil cylinder (2) are both covered with a protective cover (18).

7. The clamping mechanism according to claim 1, characterized in that: A probe rod (26) and a proximity switch are arranged beside the oil cylinder (2).

8. The clamping mechanism according to claim 1, characterized in that: A mounting block (3) and a sliding block (31) are arranged at positions where the base (1) and the side pad (13) are opposite to each other; a positioning pin (32) penetrating the side pad (13) is arranged on the front side of the sliding block (31); a first thin cylinder (34) is arranged on the rear side of the mounting block (3); a piston rod of the first thin cylinder (34) passes through the mounting block (3) and is connected to the rear side of the sliding block (31).

9. The clamping mechanism according to claim 8, characterized in that: The sliding block (31) is provided with a knob plunger (33) for fixing the positioning pin (32).

10. The clamping mechanism according to claim 8, characterized in that: It also comprises a second thin cylinder (35), the cylinder body of the second thin cylinder (35) is fixedly mounted on the base (1), and the piston rod of the second thin cylinder (35) is connected to the bottom of the mounting block (3) through a connecting block (36).

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