Clamping device for adjusting automobile swing arm and clamping method thereof

Abstract

The invention discloses a clamping device and a clamping method for adjusting an automobile swing arm, and relates to the technical field of automobile swing arm processing, comprising a base plate, three pairs of U-shaped brackets are installed on the base plate, the top of the outer side of the U-shaped bracket is installed with a side plate, and a pair of automobile swing arms are arranged on the top surface of the base plate; an L-shaped plate is arranged on the U-shaped bracket, and a first pressing plate is arranged on the top of the inner side of the L-shaped plate, and the first pressing plate is connected to the L-shaped plate through a limit assembly; the base plate is provided with a pair of fixed plates, a connecting block is arranged on the inner side of the top surface of the fixed plate, and a second pressing plate is arranged on the inner side wall of the connecting block; a sliding rod is arranged above the connecting block, a third pressing plate is arranged on the top end of the sliding rod, an elliptical sliding cylinder is sleeved on the middle part of the sliding rod, and the elliptical sliding cylinder is connected to the outer end of the third pressing plate through a hinge mechanism. The invention not only facilitates the effective clamping and fixing of the two ends and the bending part of the automobile swing arm, but also ensures the stability of the automobile swing arm when clamped, and improves the work efficiency of the subsequent processing of the automobile swing arm.

Description

Technical Field

[0001] The invention relates to the technical field of automobile swing arm processing, in particular to a clamping device for adjusting an automobile swing arm and a clamping method thereof. Background Art

[0002] The Chinese utility model patent discloses a clamping device for adjusting the position of an automobile swing arm (publication number: CN209717093U), comprising a square workbench, on which an automobile swing arm, a side positioning mechanism and a clamping mechanism are arranged, the side positioning mechanism comprising a first side thrust cylinder, a second side thrust cylinder and a first limit block and a second limit block, the first side thrust cylinder being arranged at the inner side of the automobile swing arm away from its bushing assembly, the second side thrust cylinder being arranged at the ball pin assembly of the automobile swing arm, the first limit block being arranged at the outer side of the upper arm body of the automobile swing arm, and the second limit block being arranged at the outer side of the lower arm body of the automobile swing arm; the clamping mechanism comprising a first clamping cylinder, a second clamping cylinder and a third clamping cylinder, the first clamping cylinder being arranged near the ball pin assembly, the second clamping cylinder being arranged near the bushing assembly, and the third clamping cylinder being arranged near the cone sleeve assembly.

[0003] 1. The patent points out that during the processing of the automobile swing arm, the automobile swing arm needs to be installed and clamped to facilitate its processing, but traditional clamping devices are mostly completed by manual operation, which is highly dependent on the proficiency of the operator; 2. Although the patent can simply clamp the automobile swing arm, it needs to be subjected to intensive grinding and drilling operations during the processing of the automobile swing arm, and the device cannot well ensure the stability of the automobile swing arm when it is clamped. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the automobile swing arm in the prior art, that is, the automobile swing arm is not firmly clamped and has poor stability, and to propose a clamping device for adjusting the automobile swing arm.

[0005] In order to solve the problems of weak clamping and poor stability of automobile swing arms in the prior art, the present invention adopts the following technical solutions:

[0006] A clamping device for adjusting a car swing arm comprises a bottom plate, three pairs of symmetrically arranged U-shaped brackets are installed on both sides and the middle of the top surface of the bottom plate, a side plate is installed on the top of the outer side of each U-shaped bracket, a pair of staggered car swing arms are arranged on the top surface of the bottom plate, and both ends and the middle corner of each car swing arm are placed on the corresponding U-shaped bracket in sequence;

[0007] A vertically fixed L-shaped plate is provided on the U-shaped brackets corresponding to the two ends of the automobile swing arm, and a movable hinged first pressing plate is provided on the top of the inner side surface of the L-shaped plate, and a first pressing head is provided on the top end of the first pressing plate, and the first pressing head is matched to abut against the end of the automobile swing arm, and the first pressing plate is connected to the L-shaped plate through a limit assembly;

[0008] A pair of staggered fixing plates are provided on the front and rear sides of the top surface of the bottom plate, each of the fixing plates corresponds to the corner of the corresponding automobile swing arm, and a movable hinged connecting block is provided on the inner side of the top surface of the fixing plate. A second pressing plate in the shape of "Z" is provided on the inner side wall of the connecting block, and the top end of the second pressing plate extends upward to the top of the U-shaped bracket, and a second pressing head is provided on the top end of the second pressing plate, and the second pressing head cooperates with the corner of the automobile swing arm;

[0009] A vertically fixed sliding rod is provided above the connecting block, and a third pressure plate which is placed laterally and movably hinged is provided at the top end of the sliding rod. A third pressure head is provided at the inner end of the third pressure plate, and the third pressure head is fitted to abut against the corner of the automobile swing arm. An elliptical sliding cylinder which is slidably connected is sleeved on the middle part of the sliding rod, and the elliptical sliding cylinder is connected to the outer end of the third pressure plate through a hinge mechanism.

[0010] Preferably, a first rubber pad is installed on the top surface of the U-shaped bracket, and a second rubber pad is installed on the top of the inner side of the side plate, and the first rubber pad and the corresponding second rubber pad are both arranged at 90 degrees.

[0011] Preferably, the limiting assembly comprises a trapezoidal slide plate and a pair of pulleys, a rectangular slide groove is provided on the inner side wall of the L-shaped plate, a first U-shaped seat is provided on the top of the rectangular slide groove, and the opening of the first U-shaped seat is movably hinged to the middle part of the first pressing plate through a pin shaft;

[0012] A slidably connected trapezoidal slide is provided in the middle of the rectangular slide groove, a rectangular notch is opened in the middle of the trapezoidal slide, and a pair of rotatably connected pulleys are provided at both ends of the bottom of the first pressure plate, and the bottom surfaces of the pair of pulleys are matched to abut against the slope surface of the trapezoidal slide.

[0013] Preferably, a micro electric push cylinder with the output end facing upward is installed in the middle of the bottom surface of the L-shaped plate, and the end of the electric push rod of the micro electric push cylinder passes through the bottom wall of the L-shaped plate and is fixedly connected to the bottom surface of the trapezoidal slide.

[0014] Preferably, a limiting through hole is provided on the outer section of the third pressure plate, and a fixing ear seat is provided on the top end of the slide rod. The fixing ear seat is engaged in the limiting through hole and is movably hinged to the inner wall of the limiting through hole through a pin shaft.

[0015] Preferably, a retaining ring is sleeved on the top end of the slide rod, a spring is sleeved on the upper half of the slide rod, and upper and lower ends of the spring respectively abut against the bottom surface of the retaining ring and the top surface of the elliptical slide cylinder.

[0016] Preferably, a movable hinged electric telescopic cylinder is provided on the outer side of the top surface of the fixed plate, and a second U-shaped seat is provided at the end of the telescopic rod of the electric telescopic cylinder;

[0017] A third U-shaped seat is provided at the outer side of the opening of the second U-shaped seat, and the third U-shaped seat and the second U-shaped seat are movably hinged to the middle part of the elliptical slide cylinder through the same pin shaft in sequence.

[0018] Preferably, a first double-ear seat is provided on the inner side of the top surface of the fixing plate, and a first single-ear seat is provided on the bottom surface of the connecting block, and the opening of the first double-ear seat is movably hinged to the bottom end of the first single-ear seat through a pin shaft;

[0019] A second double-ear seat is provided on the outer side of the top surface of the fixing plate, and a second single-ear seat is provided at the bottom of the cylinder body of the electric telescopic cylinder. The opening of the second double-ear seat is movably hinged with the bottom end of the second single-ear seat through a pin shaft.

[0020] Preferably, the bottom wall of the U-shaped bracket is provided with a first elliptical hole, a first bolt is inserted into each of the first elliptical holes, and a threaded end of each of the first bolts is thread-locked with the bottom plate;

[0021] A pair of second elliptical holes are formed on the top wall of the U-shaped bracket, a second bolt is inserted into each of the second elliptical holes, and a threaded end of each of the second bolts is thread-locked with the first rubber pad;

[0022] A pair of third elliptical holes are formed at the bottom of the outer wall of the side plate, a third bolt is inserted into each of the third elliptical holes, and a threaded end of each of the third bolts is thread-locked with the U-shaped bracket;

[0023] A pair of fourth elliptical holes are formed at the top of the outer side wall of the side plate, a fourth bolt is inserted into each of the fourth elliptical holes, and a threaded end of each of the fourth bolts is thread-locked with the second rubber pad;

[0024] A pair of fifth elliptical holes are provided on the inner side of the top surface of the fixing plate, a fifth bolt is inserted into each of the fifth elliptical holes, and a threaded end of each of the fifth bolts is threadedly locked with the bottom plate.

[0025] The present invention also proposes a clamping method for adjusting a clamping device of an automobile swing arm, comprising the following steps:

[0026] Step 1: Synchronously start each pair of micro electric push cylinders, and the electric push rods of the micro electric push cylinders slowly extend, driving the trapezoidal slide plate to slide upward along the rectangular slide groove, and the slope surface of the trapezoidal slide plate and the pulley form a limiting effect, and then the middle part of the first pressing plate is driven by the pulley to swing along the first U-shaped seat, driving the first pressing head to press against the end of the automobile swing arm;

[0027] Step 2: Start the electric telescopic cylinder, and the telescopic rod of the electric telescopic cylinder slowly extends. Under the cooperation of the hinge action, the second U-shaped seat drives the elliptical slide cylinder, the slide rod, the connecting block, the first single ear seat and the second pressure plate to swing along the hinge of the first double ear seat, and drives the second pressure head to press against the corner of the automobile swing arm;

[0028] Step 3: As the telescopic rod of the electric telescopic cylinder continues to extend, the elliptical slide tube and the third U-shaped seat are driven to slide upward along the slide rod, driving the spring to compress and deform, and the third U-shaped seat drives the third single-ear seat to slowly push up the third double-ear seat through the second connecting rod, and the third double-ear seat is hinged and swung along the fixed ear seat through the first connecting rod and the third pressure plate, driving the third pressure head to press against the corner of the automobile swing arm;

[0029] Step 4: Through the pressing action of the second pressing head, the third pressing head and a pair of first pressing heads, the bottom surface and the outer side surface of the automobile swing arm are pressed against the corresponding first rubber pad and the second rubber pad.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. In the present invention, through the coordinated use of the limiting assembly, the trapezoidal slide and the pulley form a limiting effect, driving the first pressure head to press against the end of the automobile swing arm, effectively clamping and fixing the end of the automobile swing arm, ensuring the stability of the clamping of the two ends of the automobile swing arm, and being able to conveniently realize the clamping and positioning of the automobile swing arm, which is convenient for on-site processing;

[0032] 2. In the present invention, the articulated mechanism is used in conjunction with the second pressure head to press against the corner of the automobile swing arm, and the third pressure head is also pressed against the corner of the automobile swing arm, so as to effectively clamp and fix the bending part of the automobile swing arm, thereby ensuring the clamping stability of the bending part of the automobile swing arm, effectively improving the clamping and loosening efficiency, and meeting the mass production requirements;

[0033] 3. In the present invention, by using various bolts in coordination, the position of the corresponding clamping point can be adjusted according to the size of the automobile swing arm, so as to ensure that the device is suitable for clamping and fixing automobile swing arms of different sizes, thereby enhancing the practical performance of the device and being suitable for clamping and fixing various types of automobile swing arms;

[0034] To sum up, the present invention solves the problems of loose clamping and poor stability of the automobile swing arm, which not only facilitates the effective clamping and fixation of the two ends and the bending parts of the automobile swing arm, but also ensures the stability of the automobile swing arm when clamping, thereby improving the work efficiency of subsequent processing operations of the automobile swing arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0036] Figure 1 The main structure of the present invention is shown in FIG. Figure 1 ;

[0037] Figure 2 The main structure of the present invention is shown in FIG. Figure 2 ;

[0038] Figure 3 The main structure of the present invention is shown in FIG. Figure 1 (excluding automobile swing arm);

[0039] Figure 4 The main structure of the present invention is shown in FIG. Figure 2 (excluding automobile swing arm);

[0040] Figure 5 The structure of the limit assembly of the present invention is shown in FIG. Figure 1 ;

[0041] Figure 6 The structure of the limit assembly of the present invention is schematically shown in FIG. Figure 2 ;

[0042] Figure 7 The structure of the limit assembly of the present invention is shown in FIG. Figure 3 ;

[0043] Figure 8 The structure of the limit assembly of the present invention is shown in FIG. Figure 4 ;

[0044] Fig. 9 The hinge mechanism structure of the present invention is schematically shown in FIG. Figure 1 ;

[0045] Fig.10 The hinge mechanism structure of the present invention is schematically shown in FIG. Figure 2 ;

[0046] Fig.11 The hinge mechanism structure of the present invention is schematically shown in FIG. Figure 3 ;

[0047] Fig.12 The hinge mechanism structure of the present invention is schematically shown in FIG. Figure 4 ;

[0048] Fig.13 It is a schematic diagram of the clamping method of the present invention;

[0049] The serial numbers in the figure are: 1, bottom plate; 11, U-shaped bracket; 12, first rubber pad; 13, side plate; 14, second rubber pad; 15, automobile swing arm; 2, L-shaped plate; 21, first U-shaped seat; 22, first pressure plate; 23, first pressure head; 24, pulley; 25, micro electric push cylinder; 26, trapezoidal slide; 3, fixing plate; 31, first double-ear seat; 32, first single-ear seat; 33, connecting block; 34, The second pressure plate; 35, the second pressure head; 36, the slide rod; 37, the retaining ring; 38, the fixed ear seat; 4, the second double-ear seat; 41, the second single-ear seat; 42, the electric telescopic cylinder; 43, the second U-shaped seat; 44, the elliptical slide cylinder; 45, the spring; 5, the third pressure plate; 51, the third pressure head; 52, the first connecting rod; 53, the third double-ear seat; 54, the third single-ear seat; 55, the second connecting rod; 56, the third U-shaped seat. DETAILED DESCRIPTION

[0050] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0051] Embodiment 1: This embodiment provides a clamping device for adjusting the swing arm of an automobile, see Figure 1-12 Specifically, it includes a bottom plate 1, three pairs of symmetrically arranged U-shaped brackets 11 are installed on both sides and the middle of the top surface of the bottom plate 1, a first rubber pad 12 is installed on the top surface of the U-shaped bracket 11, a side plate 13 is installed on the top of the outer side of each U-shaped bracket 11, a second rubber pad 14 is installed on the top of the inner side of the side plate 13, the first rubber pad 12 and the corresponding second rubber pad 14 are arranged at 90 degrees, a pair of staggered automobile swing arms 15 are provided on the top surface of the bottom plate 1, and both ends and the middle corner of each automobile swing arm 15 are placed on the corresponding U-shaped bracket 11 in sequence;

[0052] A vertically fixed L-shaped plate 2 is provided on the U-shaped bracket 11 corresponding to the two ends of the automobile swing arm 15, and a movable hinged first pressing plate 22 is provided on the top of the inner side surface of the L-shaped plate 2. A first pressing head 23 is provided at the top end of the first pressing plate 22. The first pressing head 23 is matched to abut against the end of the automobile swing arm 15, and the first pressing plate 22 is connected to the L-shaped plate 2 through a limit assembly;

[0053] A pair of staggered fixing plates 3 are provided on the front and rear sides of the top surface of the bottom plate 1, and each fixing plate 3 corresponds to the corner of the corresponding automobile swing arm 15 one by one. A movable hinged connecting block 33 is provided on the inner side of the top surface of the fixing plate 3, and a "Z"-shaped second pressing plate 34 is provided on the inner side wall of the connecting block 33. The top end of the second pressing plate 34 extends upward to the top of the U-shaped bracket 11, and the top end of the second pressing plate 34 is provided with a second pressing head 35, and the second pressing head 35 cooperates with the corner of the automobile swing arm 15.

[0054] A vertically fixed slide bar 36 is provided above the connecting block 33, and a third pressure plate 5 which is placed laterally and movably hinged is provided at the top end of the slide bar 36. A third pressure head 51 is provided at the inner end of the third pressure plate 5, and the third pressure head 51 is fitted to abut against the corner of the automobile swing arm 15. An elliptical slide cylinder 44 which is slidably connected is sleeved on the middle part of the slide bar 36, and the elliptical slide cylinder 44 is connected to the outer end of the third pressure plate 5 through a hinge mechanism.

[0055] In the specific implementation process, Fig. 9 and Fig.10 As shown, a limiting through hole is provided on the outer section of the third pressing plate 5, and a fixing ear seat 38 is provided at the top end of the sliding rod 36. The fixing ear seat 38 is engaged in the limiting through hole and is movably hinged to the inner wall of the limiting through hole through a pin shaft;

[0056] The top end of the slide bar 36 is sleeved with a retaining ring 37, and the upper half of the slide bar 36 is sleeved with a spring 45, and the upper and lower ends of the spring 45 are respectively against the bottom surface of the retaining ring 37 and the top surface of the elliptical slide cylinder 44;

[0057] When the elliptical slide cylinder 44 slides upward along the slide rod 36, the third U-shaped seat 56 drives the third single-ear seat 54 through the second connecting rod 55 to slowly lift the third double-ear seat 53 upward, and the third double-ear seat 53 is hinged and swung along the fixed ear seat 38 through the first connecting rod 52 and the third pressure plate 5, driving the third pressure head 51 to press against the corner of the automobile swing arm 15.

[0058] In the specific implementation process, Fig.11 and Fig.12 As shown, a movable hinged electric telescopic cylinder 42 is provided on the outer side of the top surface of the fixed plate 3, the model of the electric telescopic cylinder 42 is QFYGWL09, and a second U-shaped seat 43 is provided at the end of the telescopic rod of the electric telescopic cylinder 42;

[0059] A third U-shaped seat 56 is provided on the outer side of the opening of the second U-shaped seat 43. The third U-shaped seat 56 and the second U-shaped seat 43 are movably hinged to the middle of the elliptical slide cylinder 44 through the same pin shaft.

[0060] The telescopic rod of the electric telescopic cylinder 42 is slowly extended. With the cooperation of the hinged action, it can drive the elliptical slide tube 44, the slide rod 36, the connecting block 33 and the second pressure plate 34 to hinge and swing through the second U-shaped seat 43, and can also drive the elliptical slide tube 44 and the third U-shaped seat 56 to slide upward along the slide rod 36, driving the spring 45 to compress and deform.

[0061] It should be noted that: in this embodiment, a first double-ear seat 31 is provided on the inner side of the top surface of the fixing plate 3, and a first single-ear seat 32 is provided on the bottom surface of the connecting block 33. The opening of the first double-ear seat 31 is movably hinged to the bottom end of the first single-ear seat 32 through a pin shaft, and the connecting block 33 is hinged and swung along the first double-ear seat 31 through the first single-ear seat 32, which can facilitate the hinged movement of the connecting block 33, the second pressing plate 34 and the second pressing head 35;

[0062] A second double-ear seat 4 is provided on the outer side of the top surface of the fixed plate 3, and a second single-ear seat 41 is provided at the bottom of the cylinder body of the electric telescopic cylinder 42. The opening of the second double-ear seat 4 is movably hinged to the bottom end of the second single-ear seat 41 through a pin shaft. The electric telescopic cylinder 42 is hinged and swung along the second double-ear seat 4 through the second single-ear seat 41, which can facilitate the hinged movement of the electric telescopic cylinder 42.

[0063] Embodiment 2: In embodiment 1, there is still the problem that both ends of the automobile swing arm 15 are not firmly fixed. Therefore, based on embodiment 1, this embodiment also includes:

[0064] In the specific implementation process, Figure 5 and Figure 6 As shown, the limiting assembly includes a trapezoidal slide plate 26, a pair of pulleys 24, a rectangular slide groove is provided on the inner side wall of the L-shaped plate 2, a first U-shaped seat 21 is provided on the top of the rectangular slide groove, and the opening of the first U-shaped seat 21 is movably hinged to the middle of the first pressing plate 22 through a pin shaft;

[0065] A slidably connected trapezoidal slide 26 is provided in the middle of the rectangular slide groove, and a rectangular notch is opened in the middle of the trapezoidal slide 26. A pair of rotatably connected pulleys 24 are provided at both ends of the bottom of the first pressure plate 22, and the bottom surfaces of the pair of pulleys 24 are fitted against the slope surface of the trapezoidal slide 26.

[0066] A micro electric push cylinder 25 with an output end facing upward is installed in the middle of the bottom surface of the L-shaped plate 2. The model of the micro electric push cylinder 25 is LAF10-10mm. The end of the electric push rod of the micro electric push cylinder 25 passes through the bottom wall of the L-shaped plate 2 and is fixed to the bottom surface of the trapezoidal slide 26. The electric push rod of the micro electric push cylinder 25 slowly extends, driving the trapezoidal slide 26 to slide upward along the rectangular slide groove;

[0067] The inclined surface of the trapezoidal slide plate 26 and the pulley 24 form a limiting effect, and then the pulley 24 drives the middle part of the first pressure plate 22 to swing along the first U-shaped seat 21, driving the first pressure head 23 to press against the end of the automobile swing arm 15, thereby achieving effective clamping and fixing of the end of the automobile swing arm 15.

[0068] Embodiment 3: In Embodiment 1, there is still the problem that the third pressing plate 5 and the third pressing head 51 cannot be hinged and swung. Therefore, based on Embodiment 1, this embodiment further includes:

[0069] In the specific implementation process, Fig. 9 and Fig.12 As shown, the hinge mechanism includes a first connecting rod 52 and a second connecting rod 55. The outer end of the third pressing plate 5 is provided with the first connecting rod 52, the outer end of the first connecting rod 52 is provided with a third double-ear seat 53, the middle part of the outer side surface of the third U-shaped seat 56 is provided with a second connecting rod 55, the outer end of the second connecting rod 55 is provided with a third single-ear seat 54, and the third double-ear seat 53 is movably hinged with the third single-ear seat 54 through a pin shaft;

[0070] As the telescopic rod of the electric telescopic cylinder 42 continues to extend, the elliptical slide tube 44 and the third U-shaped seat 56 are driven to slide upward along the slide rod 36, driving the spring 45 to compress and deform, and the third U-shaped seat 56 drives the third single ear seat 54 to slowly lift the third double ear seat 53 upward through the second connecting rod 55. The third double ear seat 53 is hinged and swung along the fixed ear seat 38 through the first connecting rod 52 and the third pressure plate 5, driving the third pressure head 51 to press against the corner of the automobile swing arm 15, thereby achieving effective clamping and fixing of the top surface of the corner of the automobile swing arm 15.

[0071] Embodiment 4: In embodiment 1, there is still a problem that the device can only clamp and fix a single-size automobile swing arm. Therefore, based on embodiment 1, this embodiment also includes:

[0072] In the specific implementation process, Figure 1 and Figure 3 As shown, the bottom wall of the U-shaped bracket 11 is provided with a first elliptical hole, and a first bolt is inserted into each first elliptical hole. The threaded end of each first bolt is thread-locked with the bottom plate 1, and the position of the U-shaped bracket 11 can be adjusted by the first bolt.

[0073] A pair of second elliptical holes are formed on the top wall of the U-shaped bracket 11, and a second bolt is inserted into each second elliptical hole. The threaded end of each second bolt is thread-locked with the first rubber pad 12. The position of the first rubber pad 12 can be adjusted by the second bolt, and the first rubber pad 12 can also be disassembled and replaced.

[0074] A pair of third elliptical holes are formed at the bottom of the outer wall of the side plate 13, and a third bolt is inserted into each of the third elliptical holes. The threaded end of each third bolt is thread-locked with the U-shaped bracket 11, and the position of the side plate 13 can be adjusted by the third bolt.

[0075] A pair of fourth elliptical holes are formed at the top of the outer wall of the side plate 13, and a fourth bolt is inserted into each of the fourth elliptical holes. The threaded end of each fourth bolt is thread-locked with the second rubber pad 14. The position of the second rubber pad 14 can be adjusted by the fourth bolt, and the second rubber pad 14 can also be disassembled and replaced.

[0076] A pair of fifth elliptical holes are provided on the inner side of the top surface of the fixing plate 3, and a fifth bolt is inserted into each of the fifth elliptical holes. The threaded end of each fifth bolt is threadedly locked with the bottom plate 1, and the position of the fixing plate 3 can be adjusted by the fifth bolt.

[0077] Example 5: See Fig.13 Specifically, the working principle and operation method of the present invention are as follows:

[0078] Step 1: Synchronously start each pair of micro electric push cylinders 25, and the electric push rods of the micro electric push cylinders 25 slowly extend, driving the trapezoidal slide plate 26 to slide upward along the rectangular slide groove, and the slope surface of the trapezoidal slide plate 26 and the pulley 24 form a limiting effect, and then the middle part of the first pressing plate 22 is driven by the pulley 24 to swing along the first U-shaped seat 21, and the first pressing head 23 is driven to press against the end of the automobile swing arm 15;

[0079] Step 2: Start the electric telescopic cylinder 42, the telescopic rod of the electric telescopic cylinder 42 slowly extends, and under the cooperation of the hinge action, the second U-shaped seat 43 drives the elliptical slide 44, the slide rod 36, the connecting block 33, the first single ear seat 32 and the second pressure plate 34 to swing along the first double ear seat 31, and drives the second pressure head 35 to press against the corner of the automobile swing arm 15;

[0080] Step 3: As the telescopic rod of the electric telescopic cylinder 42 continues to extend, the elliptical slide tube 44 and the third U-shaped seat 56 are driven to slide upward along the slide rod 36, driving the spring 45 to compress and deform, and the third U-shaped seat 56 drives the third single ear seat 54 to slowly push up the third double ear seat 53 through the second connecting rod 55. The third double ear seat 53 is hinged and swung along the fixed ear seat 38 through the first connecting rod 52 and the third pressing plate 5, driving the third pressing head 51 to press against the corner of the automobile swing arm 15;

[0081] Step 4: Through the pressing action of the second pressing head 35 , the third pressing head 51 and the pair of first pressing heads 23 , the bottom surface and the outer side surface of the automobile swing arm 15 are pressed against the corresponding first rubber pad 12 and the second rubber pad 14 .

[0082] The present invention solves the problem of weak clamping and poor stability of the automobile swing arm, which not only facilitates the effective clamping and fixing of the two ends and the bending parts of the automobile swing arm, but also ensures the stability of the automobile swing arm when clamped, thereby improving the work efficiency of subsequent processing operations of the automobile swing arm.

[0083] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A clamping device for adjusting a swing arm of an automobile, comprising a base plate (1), characterized in that: Three pairs of symmetrically arranged U-shaped brackets (11) are installed on both sides and the middle of the top surface of the bottom plate (1), and a side plate (13) is installed on the top of the outer side surface of each U-shaped bracket (11). A pair of staggered automobile swing arms (15) are provided on the top surface of the bottom plate (1), and the two ends and the middle corner of each automobile swing arm (15) are placed on the corresponding U-shaped bracket (11) in sequence; A vertically fixed L-shaped plate (2) is provided on the U-shaped brackets (11) corresponding to the two ends of the automobile swing arm (15); a first hinged pressing plate (22) is provided at the top of the inner side surface of the L-shaped plate (2); a first pressing head (23) is provided at the top end of the first pressing plate (22); the first pressing head (23) is fitted and abutted against the end of the automobile swing arm (15); and the first pressing plate (22) is connected to the L-shaped plate (2) via a limit assembly; A pair of staggered fixing plates (3) are provided on the front and rear sides of the top surface of the bottom plate (1), each fixing plate (3) corresponds to a corner of a corresponding automobile swing arm (15), a movable hinged connecting block (33) is provided on the inner side of the top surface of the fixing plate (3), a second pressing plate (34) in the shape of a "Z" is provided on the inner side wall of the connecting block (33), the top end of the second pressing plate (34) extends upward to the top of the U-shaped bracket (11), and a second pressing head (35) is provided on the top end of the second pressing plate (34), and the second pressing head (35) cooperates with and abuts against the corner of the automobile swing arm (15); A vertically fixed slide bar (36) is provided above the connecting block (33); a third pressing plate (5) is provided at the top end of the slide bar (36) and is placed transversely and movably hinged; a third pressing head (51) is provided at the inner end of the third pressing plate (5); the third pressing head (51) is fitted to abut against a corner of the automobile swing arm (15); an elliptical slide cylinder (44) is sleeved in a sliding connection at the middle of the slide bar (36); the elliptical slide cylinder (44) is connected to the outer end of the third pressing plate (5) via a hinge mechanism; The limiting assembly comprises a trapezoidal slide plate (26) and a pair of pulleys (24); a rectangular slide groove is provided on the inner side wall of the L-shaped plate (2); a first U-shaped seat (21) is provided at the top of the rectangular slide groove; an opening of the first U-shaped seat (21) is movably hinged to the middle of the first pressing plate (22) via a pin shaft; A slidably connected trapezoidal slide plate (26) is provided in the middle of the rectangular slide groove, a rectangular notch is provided in the middle of the trapezoidal slide plate (26), a pair of rotatably connected pulleys (24) are provided at both ends of the bottom of the first pressing plate (22), and the bottom surfaces of the pair of pulleys (24) are fitted against the inclined surface of the trapezoidal slide plate (26); A micro electric push cylinder (25) with an output end facing upward is installed in the middle of the bottom surface of the L-shaped plate (2), and the end of the electric push rod of the micro electric push cylinder (25) penetrates the bottom wall of the L-shaped plate (2) and is fixedly connected to the bottom surface of the trapezoidal slide plate (26); The top end of the slide bar (36) is sleeved with a retaining ring (37), the upper half of the slide bar (36) is sleeved with a spring (45), and the upper and lower ends of the spring (45) respectively abut against the bottom surface of the retaining ring (37) and the top surface of the elliptical slide cylinder (44); A movable hinged electric telescopic cylinder (42) is provided on the outer side of the top surface of the fixed plate (3), and a second U-shaped seat (43) is provided at the end of the telescopic rod of the electric telescopic cylinder (42); A third U-shaped seat (56) is provided on the outer side of the opening of the second U-shaped seat (43) for engagement, and the third U-shaped seat (56) and the second U-shaped seat (43) are movably hinged to the middle of the elliptical slide cylinder (44) in sequence through the same pin shaft; A first double-ear seat (31) is provided on the inner side of the top surface of the fixing plate (3), a first single-ear seat (32) is provided on the bottom surface of the connecting block (33), and an opening of the first double-ear seat (31) is movably hinged to the bottom end of the first single-ear seat (32) via a pin shaft; A second double-ear seat (4) is provided on the outer side of the top surface of the fixing plate (3), a second single-ear seat (41) is provided at the bottom of the cylinder body of the electric telescopic cylinder (42), and an opening of the second double-ear seat (4) is movably hinged to the bottom end of the second single-ear seat (41) via a pin shaft.

2. The clamping device for adjusting the automobile swing arm according to claim 1, characterized in that: A first rubber pad (12) is installed on the top surface of the U-shaped bracket (11), and a second rubber pad (14) is installed on the top of the inner side of the side plate (13), and the first rubber pad (12) and the corresponding second rubber pad (14) are both arranged at 90 degrees.

3. The clamping device for adjusting the automobile swing arm according to claim 2, characterized in that: A limiting through hole is provided on the outer section of the third pressing plate (5), and a fixing ear seat (38) is provided on the top end of the sliding rod (36). The fixing ear seat (38) is engaged in the limiting through hole and is movably hinged to the inner wall of the limiting through hole via a pin shaft.

4. The clamping device for adjusting the automobile swing arm according to claim 3 is characterized in that: The bottom wall of the U-shaped bracket (11) is provided with a first elliptical hole, a first bolt is inserted into the interior of each of the first elliptical holes, and the threaded end of each of the first bolts is thread-locked with the bottom plate (1); A pair of second elliptical holes are formed on the top wall of the U-shaped bracket (11), a second bolt is inserted into each of the second elliptical holes, and a threaded end of each of the second bolts is thread-locked with the first rubber pad (12); A pair of third elliptical holes are formed at the bottom of the outer wall of the side plate (13), a third bolt is inserted into each of the third elliptical holes, and a threaded end of each of the third bolts is thread-locked with the U-shaped bracket (11); A pair of fourth elliptical holes are formed at the top of the outer side wall of the side plate (13), a fourth bolt is inserted into each of the fourth elliptical holes, and a threaded end of each of the fourth bolts is thread-locked with the second rubber pad (14); A pair of fifth elliptical holes are provided on the inner side of the top surface of the fixing plate (3), a fifth bolt is inserted into each of the fifth elliptical holes, and the threaded end of each of the fifth bolts is thread-locked with the bottom plate (1).

5. The clamping method for adjusting the clamping device of the automobile swing arm according to claim 4, characterized in that: The following steps are involved: Step 1: synchronously start each pair of micro electric push cylinders (25), the electric push rods of the micro electric push cylinders (25) slowly extend, driving the trapezoidal slide plate (26) to slide upward along the rectangular slide groove, the slope surface of the trapezoidal slide plate (26) and the pulley (24) form a limiting effect, and then drive the middle part of the first pressing plate (22) to swing along the first U-shaped seat (21) through the pulley (24), driving the first pressing head (23) to press against the end of the automobile swing arm (15); Step 2, starting the electric telescopic cylinder (42), the telescopic rod of the electric telescopic cylinder (42) slowly extends, and under the cooperation of the hinge action, the elliptical slide cylinder (44), the slide rod (36), the connecting block (33), the first single ear seat (32) and the second pressure plate (34) are driven to swing along the first double ear seat (31) through the second U-shaped seat (43), and the second pressure head (35) is driven to press against the corner of the automobile swing arm (15); Step 3: As the telescopic rod of the electric telescopic cylinder (42) continues to extend, the elliptical slide tube (44) and the third U-shaped seat (56) are driven to slide upward along the slide rod (36), driving the spring (45) to be compressed and deformed, and the third U-shaped seat (56) drives the third single-ear seat (54) through the second connecting rod (55) to slowly lift the third double-ear seat (53) upward, and the third double-ear seat (53) is hinged and swung along the fixed ear seat (38) through the first connecting rod (52) and the third pressure plate (5), driving the third pressure head (51) to press against the corner of the automobile swing arm (15); Step 4: Through the pressing action of the second pressing head (35), the third pressing head (51) and the pair of first pressing heads (23), the bottom surface and the outer side surface of the automobile swing arm (15) are pressed against the corresponding first rubber pad (12) and the second rubber pad (14).

Images