Automobile frame riveting line assembly fixture

Abstract

The utility model discloses an automobile frame riveting line general splicing clamp, which relates to the technical field of automobile manufacturing, and comprises a bottom plate assembly, a plurality of cross-shaped sliding tables and cross beam supporting mechanisms are arranged on the bottom plate assembly in a sliding manner, and two oppositely arranged clamping mechanisms are arranged on each cross-shaped sliding table; the bottom plate assembly comprises a bottom plate body, longitudinal sliding rails allowing the cross-shaped sliding table to slide are arranged on the two sides of the top face of the bottom plate body respectively, a support is arranged in the middle of the top face of the bottom plate body, and a longitudinal rail allowing the cross beam supporting mechanism to slide is arranged on the support. The cross-shaped sliding table comprises a base plate, the base plate is arranged on the longitudinal sliding rail in a sliding mode, a transverse sliding rail is arranged on the top face of the base plate, two sliding plates are arranged on the transverse sliding rail in a sliding mode, and the clamping mechanisms are fixedly installed on the corresponding sliding plates. 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 general assembly fixture for riveting lines of automobile frames. 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 general assembly fixture for riveting lines of automobile frames, which has a simple structure and reduces enterprise costs.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is: a vehicle frame riveting line assembly fixture, including a base plate assembly, on which a plurality of cross slides and beam support mechanisms are slidably arranged, and each cross slide is installed with two oppositely arranged clamping mechanisms; the base plate assembly includes a base plate body, and longitudinal slide rails for sliding of the cross slides are respectively arranged on both sides of the top surface of the base plate body, and a bracket is arranged in the middle of the top surface of the base plate body, and the bracket is provided with a longitudinal track for sliding of the beam support mechanism; the cross slide includes a base plate, and the base plate is slidably arranged on the longitudinal slide rail, and the top surface of the base plate is provided with a transverse slide rail, and two slide plates are slidably arranged on the transverse slide rail, and the clamping mechanism is fixedly installed on the corresponding slide plate.

[0006] Further improvements are: a longitudinal rack is provided on the top surface of the base plate body, a support is provided on the bottom surface of the base plate, and the support is slidably provided on the longitudinal slide rail; a first drive motor is fixedly provided on the support, and a drive shaft of the first drive motor is connected to a gear meshing with the longitudinal rack.

[0007] A further improvement is that a second drive motor is arranged in the middle of the top surface of the base plate, a drive shaft of the second drive motor is connected to a lead screw, and a nut seat for connecting the slide plate is arranged on the lead screw.

[0008] A further improvement is that: feet are respectively arranged on both sides of the bottom surface of the base plate body, and drag chain frames are respectively arranged on both side surfaces of the base plate body.

[0009] Further improvements are as follows: the clamping mechanism includes a first base, an oil cylinder, a pressure arm and a hinge plate, the upper end of the front side surface of the first base is provided with an L-shaped notch, the inner bottom wall of the notch is provided with a bottom pad, and the inner side wall of the notch is provided with a side pad; the cylinder body of the oil cylinder is fixedly arranged on the front side surface of the first base and is located below the notch, the piston rod of the oil 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 first base and is located below the notch, and the other end of the hinge plate is hinged to the pressure arm.

[0010] Further improvements are: the pressure arm is connected to the pressure head through a universal head; the first base is provided with a split micro hydraulic station, and the split micro hydraulic station is provided with a pressure sensor; a displacement sensor is provided at the position opposite to the side pad of the first base; a sub-control box is provided on the rear side of the first base; the first base and the oil cylinder are both covered with protective covers; a probe rod and a proximity switch are provided next to the oil cylinder.

[0011] Further improvements are: a mounting block and a sliding block are provided at the position opposite to the side pad of the first base, and a positioning pin penetrating the side pad is provided on the front side of the sliding block; a first thin cylinder is provided 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; a knob plunger for fixing the positioning pin is provided on the sliding block.

[0012] A further improvement is that it also includes a second thin cylinder, the cylinder body of the second thin cylinder is fixedly mounted on the first base, and the piston rod of the second thin cylinder is connected to the bottom of the mounting block through a connecting block.

[0013] Further improvements are: the beam support mechanism includes a moving trolley and a beam support unit arranged on the moving trolley, the moving trolley includes a trolley body, and wheels are arranged at the bottom of the trolley body; the beam support unit includes a second base, a lifting shaft and a cushion block; the second base is fixedly arranged on the top of the trolley body, and a fixed tube is vertically arranged on the second base; the lifting shaft is liftably inserted in the fixed tube, and the upper end of the lifting shaft extends out of the fixed tube and is connected to the support plate; the cushion block is fixedly arranged on the support plate.

[0014] Further improvements are: a threaded sleeve is provided at the upper end of the fixed tube, and the lifting shaft is provided with an external thread that matches the threaded sleeve; a fixed sleeve is provided at the part of the lifting shaft that extends out of the fixed tube, and the fixed sleeve is connected to a handle; the handle is in a cross-shaped structure; a plurality of positioning pins for fixing the second base are provided at the top of the trolley body; guide wheels are provided on the front and rear sides of the trolley body respectively; C-shaped frames are horizontally provided on the front and rear sides of the trolley body respectively, and guide wheels are provided on both ends of the C-shaped frames respectively.

[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.

[0019] 4. In the utility model, the height of the cushion block can be adjusted quickly and manually by means of the lifting shaft and the handle to adapt to the assembly of the beam. The utility model has a simple structure, improves work efficiency and reduces enterprise costs.

[0020] 5. In the utility model, the wheels and guide wheels of the mobile trolley are used to realize the smooth lateral movement of the beam support unit to adapt to the assembly of the beam, thereby further improving the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a front view of the automobile frame riveting line assembly fixture in the embodiment of the utility model;

[0022] Figure 2 It is a top view of the general assembly fixture of the riveted line of the automobile frame in the embodiment of the utility model;

[0023] Figure 3 It is a side view of the general assembly fixture of the riveted line of the automobile frame in the embodiment of the utility model;

[0024] Figure 4 This is a structural schematic diagram of the bottom plate assembly in the embodiment of the utility model;

[0025] Figure 5 This is a front view of a cross slide in an embodiment of the utility model;

[0026] Figure 6 for Figure 5 Sectional view along AA direction;

[0027] Figure 7 for Figure 5 Cross-sectional view along the BB direction;

[0028] Figure 8 A top view of a cross slide in an embodiment of the utility model;

[0029] Fig. 9 for Figure 8 Sectional view along CC direction;

[0030] Fig.10 This is a front view of the clamping mechanism in the embodiment of the utility model;

[0031] Fig.11 A top view of the clamping mechanism in an embodiment of the utility model;

[0032] Fig.12 A side view of the clamping mechanism in the embodiment of the utility model;

[0033] Fig.13 A cross-sectional view of the clamping mechanism in an embodiment of the utility model;

[0034] Fig.14 It is an enlarged schematic diagram of the universal head part in the embodiment of the utility model.

[0035] Fig.15 It is a side view of another clamping mechanism in the embodiment of the utility model;

[0036] Fig.16 A cross-sectional view of another clamping mechanism in an embodiment of the utility model;

[0037] Fig.17 This is a structural schematic diagram of the beam support mechanism in an embodiment of the utility model;

[0038] Fig.18 for Fig.17 DD section view in;

[0039] Fig.19 for Fig.17 EE section view in the figure;

[0040] Fig. 20 A top view of the beam support mechanism in an embodiment of the utility model;

[0041] Fig.21 It is a cross-sectional view of the beam support mechanism in the embodiment of the utility model.

[0042] Reference numerals:

[0043] 1-base assembly; 11-base body; 12-longitudinal slide rail; 13-bracket; 14-longitudinal track; 15-foot; 16-drag chain rack; 17-longitudinal rack;

[0044] 2-cross slide; 21-base plate; 22-support; 23-first drive motor; 24-gear; 25-transverse slide rail; 26-slide plate; 27-second drive motor; 28-screw rod; 29-nut seat;

[0045] 3-clamping mechanism; 31-first base; 311-notch; 312-bottom pad; 313-side pad; 314-split micro hydraulic station; 315-pressure sensor; 316-sub-control box; 317-displacement sensor; 318-shield; 32-oil cylinder; 321-pressure arm; 322-hinge plate; 323-connecting plate; 324-pressure head; 325-universal head; 326-probe rod; 33-mounting block; 331-sliding block; 332-locating pin; 333-knob plunger; 334-first thin cylinder; 335-second thin cylinder; 336-connecting block.

[0046] 4- beam support mechanism; 41- mobile trolley; 411- trolley body; 412- wheel; 413- C-shaped frame; 414- guide wheel; 415- positioning pin; 42- beam support unit; 421- second base; 422- fixed pipe; 423- threaded sleeve; 424- lifting shaft; 425- support plate; 426- cushion block; 427- fixed sleeve; 428- handle. DETAILED DESCRIPTION

[0047] 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.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] See also Figure 1 to Figure 3 As shown, the embodiment of the utility model provides a vehicle frame riveting line assembly fixture, including a base plate assembly 1, a plurality of cross slides 2 and a beam support mechanism 4 are slidably arranged on the base plate assembly 1, and two clamping mechanisms 3 arranged oppositely are installed on each cross slide 2;

[0052] See also Figure 4 As shown, the base plate assembly 1 includes a base plate body 11, and longitudinal slide rails 12 for the cross slide 2 to slide are respectively arranged on both sides of the top surface of the base plate body 11, and a bracket 13 is arranged in the middle of the top surface of the base plate body 11, and a longitudinal track 14 for the cross beam support mechanism 4 to slide is arranged on the bracket 13; specifically, a longitudinal rack 17 is arranged on the top surface of the base plate body 11, and a support 22 is arranged on the bottom surface of the base plate 21, and the support 22 is slidably arranged on the longitudinal slide rail 12; the support 22 is fixedly provided with a first drive motor 23, and the drive shaft of the first drive motor 23 is connected to a gear 24 meshing with the longitudinal rack 17. Footings 15 are respectively arranged on both sides of the bottom surface of the base plate body 11, and drag chain racks 16 are respectively arranged on both sides of the base plate body 11.

[0053] See also Figures 5 to 9 As shown, the cross slide 2 includes a base plate 21, the base plate 21 is slidably arranged on the longitudinal slide rail 12, and a transverse slide rail 25 is arranged on the top surface of the base plate 21, two slide plates 26 are slidably arranged on the transverse slide rail 25, and the clamping mechanism 3 is fixedly installed on the corresponding slide plates 26. Specifically, a second drive motor 27 is arranged in the middle of the top surface of the base plate 21, and a screw rod 28 is connected to the drive shaft of the second drive motor 27, and a nut seat 29 for connecting the slide plate 26 is arranged on the screw rod 28.

[0054] See also Figure 10 to Figure 14As shown, the clamping mechanism 3 includes a first base 31, a cylinder 32, a pressure arm 321 and a hinge plate 322. An L-shaped notch 311 is provided at the upper end of the front side surface of the first base 31, a bottom pad 312 is provided at the inner bottom wall of the notch 311, and a side pad 313 is provided at the inner side wall of the notch 311; the cylinder body of the cylinder 32 is fixedly arranged on the front side surface of the first base 31 and is located below the notch 311, and the piston rod of the cylinder 32 is hinged to the lower end of the pressure arm 321 through the connecting plate 323; a pressure head 324 is provided at the upper end of the pressure arm 321; one end of the hinge plate 322 is hinged to the front side surface of the first base 31 and is located below the notch 311, and the other end of the hinge plate 322 is hinged to the pressure arm 321. Specifically, the pressing arm 321 is connected to the pressing head 324 through a universal head 325; the first base 31 is provided with a split micro hydraulic station 314, and the split micro hydraulic station 314 is provided with a pressure sensor 315; a displacement sensor 317 is provided at a position opposite to the first base 31 and the side pad 313; a sub-control box 316 is provided on the rear side of the first base 31; the first base 31 and the oil cylinder 32 are both covered with a protective cover 318; a probe rod 326 and a proximity switch are provided next to the oil cylinder 32.

[0055] See also Figure 15-16 As shown, this embodiment also provides another clamping mechanism 3, which has a structure basically the same as the aforementioned clamping mechanism 3, and the difference is only that: a mounting block 33 and a sliding block 331 are provided at the position where the first base 31 is opposite to the side pad 313, and a positioning pin 332 penetrating the side pad 313 is provided on the front side of the sliding block 331; a first thin cylinder 334 is provided on the rear side of the mounting block 33, and the piston rod of the first thin cylinder 334 passes through the mounting block 33 and is connected to the rear side of the sliding block 331; a knob plunger 333 for fixing the positioning pin 332 is provided on the sliding block 331. Specifically, a second thin cylinder 335 is also included, and the cylinder body of the second thin cylinder 335 is fixedly mounted on the first base 31, and the piston rod of the second thin cylinder 335 is connected to the bottom of the mounting block 33 through a connecting block 336.

[0056] See also Figures 17 to 21As shown, the beam supporting mechanism 4 includes a moving trolley 41 and a beam supporting unit 42 arranged on the moving trolley 41. The moving trolley 41 includes a trolley body 411, and wheels 412 are arranged at the bottom of the trolley body 411; the beam supporting unit 42 includes a second base 421421, a lifting shaft 424 and a cushion block 426; the second base 421421 is fixedly arranged on the top of the trolley body 411, and a fixed tube 422 is vertically arranged on the second base 421421; the lifting shaft 424 is liftably inserted in the fixed tube 422, and the upper end of the lifting shaft 424 extends out of the fixed tube 422 and is connected to the support plate 425; the cushion block 426 is fixedly arranged on the support plate 425. Specifically, a threaded sleeve 423 is provided at the upper end of the fixed tube 422, and the lifting shaft 424 is provided with an external thread matched with the threaded sleeve 423; the part of the lifting shaft 424 extending out of the fixed tube 422 is provided with a fixing sleeve 427, and the fixing sleeve 427 is connected to a handle 428; the handle 428 is in a cross-shaped structure; a plurality of positioning pins 415 for fixing the second base 421421 are provided on the top of the trolley body 411; guide wheels 414 are respectively provided on the front and rear sides of the trolley body 411; C-shaped frames 413 are respectively horizontally provided on the front and rear sides of the trolley body 411, and guide wheels 414 are respectively provided on both ends of the C-shaped frame 413.

[0057] 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.

[0058] 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 vehicle frame riveting line assembly fixture, comprising a bottom plate assembly (1), characterized in that: A plurality of cross slides (2) and beam support mechanisms (4) are slidably arranged on the base plate assembly (1), and two clamping mechanisms (3) are installed on each cross slide (2); the base plate assembly (1) comprises a base plate body (11), and longitudinal slide rails (12) for the cross slides (2) to slide are respectively arranged on both sides of the top surface of the base plate body (11), and a bracket (13) is arranged in the middle of the top surface of the base plate body (11), and a longitudinal track (14) for the beam support mechanism (4) to slide is arranged on the bracket (13); the cross slide (2) comprises a base plate (21), and the base plate (21) is slidably arranged on the longitudinal slide rail (12), and a transverse slide rail (25) is arranged on the top surface of the base plate (21), and two slide plates (26) are slidably arranged on the transverse slide rail (25), and the clamping mechanism (3) is fixedly installed on the corresponding slide plate (26).

2. The automobile frame riveting line assembly fixture according to claim 1 is characterized in that: The top surface of the base plate body (11) is provided with a longitudinal rack (17), and the bottom surface of the base plate (21) is provided with a support (22), and the support (22) is slidably arranged on the longitudinal slide rail (12); the support (22) is fixedly provided with a first drive motor (23), and the drive shaft of the first drive motor (23) is connected to a gear (24) meshing with the longitudinal rack (17).

3. The automobile frame riveting line assembly fixture according to claim 1, characterized in that: A second drive motor (27) is arranged in the middle of the top surface of the base plate (21); a drive shaft of the second drive motor (27) is connected to a screw rod (28); and a nut seat (29) for connecting to the slide plate (26) is arranged on the screw rod (28).

4. The automobile frame riveting line assembly fixture according to claim 1, characterized in that: Both sides of the bottom surface of the base plate body (11) are provided with footings (15) respectively, and both sides of the base plate body (11) are provided with drag chain frames (16) respectively.

5. The automobile frame riveting line assembly fixture according to claim 1, characterized in that: The clamping mechanism (3) comprises a first base (31), an oil cylinder (32), a pressure arm (321) and a hinge plate (322); an L-shaped notch (311) is provided at the upper end of the front side surface of the first base (31); a bottom pad (312) is provided on the inner bottom wall of the notch (311); and a side pad (313) is provided on the inner side wall of the notch (311); a cylinder body of the oil cylinder (32) is fixedly arranged on the front side surface of the first base (31) and is located below the notch (311); a piston rod of the oil cylinder (32) is hinged to the lower end of the pressure arm (321) through a connecting plate (323); a pressure head (324) is provided at the upper end of the pressure arm (321); one end of the hinge plate (322) is hinged to the front side surface of the first base (31) and is located below the notch (311); and the other end of the hinge plate (322) is hinged to the pressure arm (321).

6. The automobile frame riveting line assembly fixture according to claim 5, characterized in that: The pressing arm (321) is connected to the pressing head (324) via a universal head (325); the first base (31) is provided with a split micro hydraulic station (314), and the split micro hydraulic station (314) is provided with a pressure sensor (315); a displacement sensor (317) is provided at a position where the first base (31) is opposite to the side pad (313); a sub-control box (316) is provided on the rear side of the first base (31); the first base (31) and the oil cylinder (32) are both covered with a protective cover (318); and a probe rod (326) and a proximity switch are provided beside the oil cylinder (32).

7. The automobile frame riveting line assembly fixture according to claim 5, characterized in that: A mounting block (33) and a sliding block (331) are arranged at positions opposite to the first base (31) and the side pad (313); a positioning pin (332) penetrating the side pad (313) is arranged on the front side of the sliding block (331); a first thin cylinder (334) is arranged on the rear side of the mounting block (33); a piston rod of the first thin cylinder (334) passes through the mounting block (33) and is connected to the rear side of the sliding block (331); and a knob plunger (333) for fixing the positioning pin (332) is arranged on the sliding block (331).

8. The automobile frame riveting line assembly fixture according to claim 7, characterized in that: It also includes a second thin cylinder (335), the cylinder body of the second thin cylinder (335) is fixedly mounted on the first base (31), and the piston rod of the second thin cylinder (335) is connected to the bottom of the mounting block (33) through a connecting block (336).

9. The automobile frame riveting line assembly fixture according to claim 1, characterized in that: The crossbeam support mechanism (4) comprises a moving trolley (41) and a crossbeam support unit (42) arranged on the moving trolley (41), wherein the moving trolley (41) comprises a trolley body (411), and a wheel (412) is arranged at the bottom of the trolley body (411); the crossbeam support unit (42) comprises a second base (421) (421), a lifting shaft (424) and a cushion block (426); the second base (421) (421) is fixedly arranged on the top of the trolley body (411), and a fixing tube (422) is vertically arranged on the second base (421) (421); the lifting shaft (424) is liftably inserted into the fixing tube (422), and the upper end of the lifting shaft (424) extends out of the fixing tube (422) and is connected to a support plate (425); the cushion block (426) is fixedly arranged on the support plate (425).

10. The automobile frame riveting line assembly fixture according to claim 9, characterized in that: The upper end of the fixed tube (422) is provided with a threaded sleeve (423), and the lifting shaft (424) is provided with an external thread matched with the threaded sleeve (423); the part of the lifting shaft (424) extending out of the fixed tube (422) is provided with a fixing sleeve (427), and the fixing sleeve (427) is connected with a handle (428); the handle (428) is in a cross-shaped structure; the top of the trolley body (411) is provided with a plurality of positioning pins (415) for fixing the second base (421) (421); the front and rear sides of the trolley body (411) are respectively provided with guide wheels (414); the front and rear sides of the trolley body (411) are respectively provided with C-shaped frames (413) horizontally, and the two ends of the C-shaped frames (413) are respectively provided with guide wheels (414).

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