Hydraulic clamp for front upper aluminum swing arm of automobile

Abstract

The invention discloses a hydraulic clamp for an automobile front upper aluminum swing arm. The hydraulic clamp comprises a bottom plate; the positioning and pressing assembly is arranged in the middle of the upper surface of the bottom plate to position and fix the front end of the swing arm; the second limiting assembly and the first limiting assembly are arranged side by side, and the second limiting assembly and the first limiting assembly are located on the two sides of the positioning and pressing assembly so that the two sides of the swing arm can be clamped after the swing arm is positioned through the positioning and pressing assembly; the oil inlet is formed in one end of the bottom plate, and an oil channel communicated with the interior of the oil inlet is formed in the inner side of the bottom plate; by arranging the positioning and pressing assembly, the first limiting assembly, the second limiting assembly, the oil outlet and the oil inlet, the situation that the product size is poor due to manual clamping errors is avoided; the clamping force of the oil cylinder is larger than the pressing force of a traditional screw, positioning looseness cannot occur in the machining process, and the machining precision of products can be effectively guaranteed.

Description

Technical Field

[0001] The invention particularly relates to a hydraulic clamp for an upper front aluminum swing arm of an automobile. Background Art

[0002] The car swing arm is part of the suspension system, which connects the wheels and the car body. When the vehicle is subjected to impact from the road, the swing arm can effectively disperse these forces. Its main function is to absorb the vibration from the road during driving and maintain the stability and comfort of the vehicle. High-strength steel, aluminum alloy or other lightweight materials are usually used to make the swing arm to reduce the weight of the vehicle and improve performance.

[0003] During the processing of existing automobile aluminum swing arms, the swing arms are generally fixed by manual clamps. However, the manual placement is not accurate and there are clamping errors in the operation, which will lead to inaccurate swing arm position and poor processing dimensions. In addition, the traditional manual screw tightening force is also small, and the swing arm may become loose. For this reason, we propose a hydraulic clamp for the front upper aluminum swing arm of an automobile. Summary of the invention

[0004] The purpose of the present invention is to provide a hydraulic clamp for the front upper aluminum swing arm of an automobile, so as to solve the problems mentioned in the above background technology that the existing manual clamping and fixing has errors, resulting in poor size of the swing arm after processing, and the tightening force of the screws during manual clamping is small, resulting in the swing arm being loose and not firmly fixed.

[0005] To achieve the above object, the present invention provides the following technical solution: a hydraulic clamp for an upper front aluminum swing arm of an automobile, comprising:

[0006] Base plate;

[0007] A positioning and pressing assembly is arranged on the middle part of the upper surface of the bottom plate to position and fix the front end of the swing arm;

[0008] A second limiting assembly and a first limiting assembly, wherein the second limiting assembly and the first limiting assembly are arranged side by side and are located on both sides of the positioning and pressing assembly, so as to clamp both sides of the swing arm after the positioning and pressing assembly positions the swing arm;

[0009] An oil inlet is arranged at one end of the bottom plate, and an oil passage communicating with the inside of the oil inlet is opened on the inner side of the bottom plate, and the oil passage is respectively communicated with the inside of the positioning and pressing assembly, the first limit assembly and the second limit assembly;

[0010] The oil outlet is arranged at one end of the bottom plate and is staggered with the oil inlet to discharge the oil.

[0011] Preferably, the positioning and pressing component includes a support block, a first positioning block and a first hydraulic clamp. The support block is fixed on the bottom plate, and a positioning groove matching with the front end of the swing arm is formed on one side wall of the support block. The first positioning block is arranged side by side with the support block to support the front end of the swing arm, and a first hydraulic clamp for pressing and fixing the front end of the swing arm is arranged on one side of the first positioning block.

[0012] Preferably, the first hydraulic clamp includes a first cylinder body, a piston rod, a connecting plate, a second connecting column, a pressing arm, a pressing head and a first connecting column. The first cylinder body is fixed on the bottom plate, a piston rod is arranged on the first cylinder body, the pressing arm is rotatably installed on the piston rod, the first connecting column is installed on the edge of the upper surface of the first cylinder body through a fixing block, one inner end of the pressing arm has a second connecting column, and two ends of the connecting plate are respectively rotatably matched with the second connecting column and the first connecting column. A pressing head抵触with the front section of the swing arm is detachably connected to one end of the lower surface of the pressing arm.

[0013] Preferably, a clamping groove is formed on the outer surface of one end of the first connecting column, and a clamping strip for restricting the sliding of the connecting plate is arranged inside the clamping groove.

[0014] Preferably, a plurality of clamping strips are arranged, and the clamping strips are in a "Ji" shape.

[0015] Preferably, the first limiting component includes a second hydraulic clamp, an elastic clamping member, a square support block and a second positioning block. The elastic clamping member and the second positioning block are arranged side by side on the bottom plate, and a square support block for supporting the swing arm is arranged between the elastic clamping member and the second positioning block. The second hydraulic clamp is arranged on one side of the square support block to press the swing arm in contact with the square support block.

[0016] Preferably, the elastic clamping member includes a clamping base, a top block, a spring and a guide rod. A sliding groove is formed on the clamping base, the top block is slidably arranged inside the sliding groove, one end of the top block has a guide rod slidably matched with the clamping base, and a spring is sleeved on the outer surface of the guide rod.

[0017] Preferably, the second limiting component includes a third hydraulic clamp, a single-acting cylinder component and a cylindrical support block. The single-acting cylinder component and the cylindrical support block are arranged side by side, and the third hydraulic clamp is arranged on one side of the cylindrical support block to press the swing arm in contact with the cylindrical support block.

[0018] Preferably, the single-acting cylinder component includes a mounting seat, a second cylinder body, a top rod, a driving oil groove and a through hole. The mounting seat is fixed on the bottom plate, and a driving oil groove matching with the oil passage is formed inside the mounting seat along the height direction. The second cylinder body is installed on one side wall of the mounting seat through the thread part on its outer surface, and a top rod is slidably arranged inside the second cylinder body. A through hole communicated with the driving oil groove is formed inside one end of the second cylinder body.

[0019] Preferably, the positioning and pressing assembly, the first limiting assembly and the second limiting assembly are connected in pairs to form a triangle.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The present invention is provided with a positioning and pressing component, a first limit component, a second limit component, an oil outlet and an oil inlet, which is convenient for quickly clamping and fixing the swing arm, thereby avoiding poor product size caused by manual clamping errors; the clamping force of the cylinder is greater than the clamping force of traditional screws, and there will be no positioning looseness during the processing, which can effectively ensure the processing accuracy of the product, and the device adopts the "three-point positioning" principle, which cleverly avoids the special situation of blank deformation caused by heat treatment of aluminum parts; in addition, according to the actual stroke of the machining center, this fixture is designed to be placed in a double station, which indirectly improves the production efficiency during the processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 It is a schematic diagram of the support block structure of the present invention;

[0024] Figure 3 It is a schematic diagram of the structure of the first limiting component and the second limiting component of the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the first hydraulic clamp of the present invention;

[0026] Figure 5 It is a schematic diagram of the structure of the elastic clamping member of the present invention;

[0027] Figure 6 It is a schematic cross-sectional structural diagram of a single-acting cylinder component of the present invention;

[0028] Figure 7 It is a schematic diagram of the oil inlet structure of the present invention.

[0029] In the figure: 1, bottom plate; 2, swing arm; 3, positioning and pressing assembly; 31, first positioning block; 32, first hydraulic clamp; 321, first cylinder; 322, piston rod; 323, connecting plate; 324, second connecting column; 325, pressing arm; 326, pressing head; 327, first connecting column; 328, clamping strip; 33, supporting block; 4, first limiting assembly; 41, second hydraulic clamp; 42, elastic clamp Components; 421, clamping base; 422, tightening block; 423, spring; 424, guide rod; 43, square support block; 44, second positioning block; 5, second limit assembly; 51, third hydraulic clamp; 52, single-acting cylinder component; 521, mounting seat; 522, second cylinder body; 523, tightening rod; 524, driving oil groove; 525, through hole; 53, cylindrical support block; 6, oil outlet; 7, oil inlet. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1-Figure 7 The present invention provides a technical solution: a hydraulic clamp for an upper front aluminum swing arm of an automobile, comprising:

[0032] Bottom plate 1;

[0033] The positioning and pressing assembly 3 is arranged at the middle of the upper surface of the bottom plate 1 to position and fix the front end of the swing arm, so as to ensure that the swing arm 2 is placed in place on the bottom plate 1, thereby avoiding placement errors and causing inconvenience in later processing;

[0034] The second limiting assembly 5 and the first limiting assembly 4 are arranged side by side with the first limiting assembly 4 and are located on both sides of the positioning and pressing assembly 3, so as to clamp both sides of the swing arm after the positioning and pressing assembly 3 positions the swing arm, so as to realize multi-point positioning of the swing arm 2 according to the shape of the swing arm 2, so as to increase the pressing and fixing effect, and at the same time reduce the metal deformation and damage caused by excessive local pressure due to too few pressing points;

[0035] The oil inlet 7 is arranged at one end of the bottom plate 1, and an oil passage connected to the inside of the oil inlet 7 is opened on the inner side of the bottom plate 1, and the oil passage is respectively connected to the inside of the positioning and pressing assembly 3, the first limit assembly 4 and the second limit assembly 5, so as to facilitate hydraulic clamping and fixing by oil driving, and the clamping force is greater than that of traditional screws;

[0036] The oil outlet 6 is disposed at one end of the bottom plate 1 and is staggered with the oil inlet 7 to discharge the oil.

[0037] Preferably, the positioning and pressing component 3 includes a support block 33, a first positioning block 31 and a first hydraulic clamp 32. The support block 33 is fixed on the bottom plate 1, and a positioning groove matching with the front end of the swing arm is formed on one side wall of the support block 33, which is convenient for placing the swing arm 2 in place and avoiding the placement deviation of the swing arm 2. The first positioning block 31 is arranged side by side with the support block 33 to support the front end of the swing arm, and a first hydraulic clamp 32 for pressing and fixing the front end of the swing arm is arranged on one side of the first positioning block 31, which is convenient for pressing and fixing the swing arm 2 after positioning it.

[0038] Preferably, the first hydraulic clamp 32 includes a first cylinder block 321, a piston rod 322, a connecting plate 323, a second connecting column 324, a pressing arm 325, a pressing head 326 and a first connecting column 327. The first cylinder block 321 is fixed on the bottom plate 1, and a piston rod 322 is arranged on the first cylinder block 321, which is convenient for driving the pressing arm 325 to move through hydraulic pressure. The pressing arm 325 is rotatably installed on the piston rod 322. The first connecting column 327 is installed on the edge of the upper surface of the first cylinder block 321 through a fixing block. One inner end of the pressing arm 325 has a second connecting column 324, and both ends of the connecting plate 323 are rotatably matched with the second connecting column 324 and the first connecting column 327 respectively. One end of the lower surface of the pressing arm 325 is detachably connected with a pressing head 326 that抵触 the front section of the swing arm, which is convenient for driving the pressing arm 325 to move, so that the pressing head 326 approaches or moves away from the swing arm 2 to achieve pressing or releasing.

[0039] Preferably, a clamping groove is formed on the outer surface of one end of the first connecting column 327, and a clamping strip 328 for restricting the sliding of the connecting plate 323 is arranged inside the clamping groove, which is convenient for preventing the connecting plate 323 from falling off one end of the first connecting column 327.

[0040] Preferably, a plurality of clamping strips 328 are arranged, and the clamping strip 328 is in a "ji" shape, which is convenient for quickly installing and disassembling the clamping strip 328 to improve the convenience of maintenance.

[0041] Preferably, the first limiting component 4 includes a second hydraulic clamp 41, an elastic clamping member 42, a square support block 43 and a second positioning block 44. The elastic clamping member 42 and the second positioning block 44 are arranged side by side on the bottom plate 1, and a square support block 43 for supporting the swing arm is arranged between the elastic clamping member 42 and the second positioning block 44. The second hydraulic clamp 41 is arranged on one side of the square support block 43 to press the swing arm in contact with the square support block 43, which is convenient for clamping and fixing one side of the swing arm 2.

[0042] Preferably, the elastic clamping member 42 includes a clamping base 421, a clamping block 422, a spring 423 and a guide rod 424. A sliding groove is provided on the clamping base 421, and the clamping block 422 is slidably arranged on the inner side of the sliding groove. One end of the clamping block 422 has a guide rod 424 that slides with the clamping base 421, and a spring 423 is sleeved on the outer surface of the guide rod 424 to facilitate pushing the guide rod 424 to move, so as to press the swing arm 2 to make it contact with the second positioning block 44.

[0043] Preferably, the second limiting assembly 5 includes a third hydraulic clamp 51, a single-acting cylinder component 52 and a cylindrical support block 53. The single-acting cylinder component 52 and the cylindrical support block 53 are arranged side by side. The third hydraulic clamp 51 is arranged on one side of the cylindrical support block 53 to press the swing arm to contact the cylindrical support block 53, so as to facilitate better pressing down and fixing the swing arm 2. At the same time, the left and right movement of the swing arm 2 is limited by the single-acting cylinder component 52 to improve the fixing effect of the swing arm 2.

[0044] Preferably, the single-acting cylinder component 52 includes a mounting seat 521, a second cylinder body 522, a tightening rod 523, a driving oil groove 524 and a through hole 525. The mounting seat 521 is fixed on the base plate 1, and a driving oil groove 524 matching the oil channel is opened on the inner side of the mounting seat 521 along the height direction. The second cylinder body 522 is installed on a side wall of the mounting seat 521 through the threaded portion of its outer surface, and a tightening rod 523 is slidably arranged on the inner side of the second cylinder body 522. A through hole 525 connected to the driving oil groove 524 is opened on the inner side of one end of the second cylinder body 522, so that the tightening rod 523 can be driven by hydraulic oil to move, so as to tighten the swing arm 2 to close contact with the second positioning block 44.

[0045] Preferably, the positioning and pressing assembly 3, the first limiting assembly 4 and the second limiting assembly 5 are connected in pairs to form a triangle, so as to better position and clamp the swing arm 2 through three points to achieve a fixing effect.

[0046] The working principle and use process of the present invention are as follows: when in use, the base plate 1 is placed on the processing table of the machining center machine tool, the front end of the swing arm 2 is placed on the first positioning block 31, and the swing arm 2 is brought into contact with the support block 33 to position the swing arm 2. At this time, both sides of the swing arm 2 are supported by the square support block 43 and the cylindrical support block 53, and then the second limit assembly 5 is moved first by adjusting the oil cylinder speed regulating valve, and the oil flows into the inner side of the second cylinder body 522 through the driving oil groove 524, pushing the tightening rod 523 to extend toward one end of the second cylinder body 522, and the tightening rod 52 3 presses one side of the swing arm 2, and the other side of the swing arm 2 contacts the second positioning block 44, and the oil continues to drive the piston rod 322 to rise. At this time, one end of the pressing arm 325 rotates with the connecting plate 323 through the second connecting column 324, and the other end of the pressing arm 325 drives the pressing head 326 to descend to press the front end of the swing arm 2. Similarly, the second hydraulic clamp 41 and the third hydraulic clamp 51 press and fix the two sides of the swing arm 2 to form a "pressing state", which can effectively reduce the clamping time of employees and avoid poor product size processing due to human clamping errors.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic clamp for the front upper aluminum swing arm of an automobile, characterized in that: Comprising: Base plate (1); Positioning and pressing component (3), arranged in the middle of the upper surface of the base plate (1) to position and fix the front end of the swing arm; Second limiting component (5) and first limiting component (4), the second limiting component (5) and the first limiting component (4) are arranged side by side and located on both sides of the positioning and pressing component (3) to clamp both sides of the swing arm after the positioning and pressing component (3) positions the swing arm; Oil inlet (7), arranged at one end of the base plate (1), and an oil passage communicating with the inside of the oil inlet (7) is opened inside the base plate (1), and the oil passage is respectively communicated with the inside of the positioning and pressing component (3), the first limiting component (4) and the second limiting component (5); Oil outlet (6), arranged at one end of the base plate (1) and错开 from the oil inlet (7) to discharge the oil fluid.

2. The hydraulic clamp for the front upper aluminum swing arm of an automobile according to claim 1, characterized in that: The positioning and pressing component (3) includes a support block (33), a first positioning block (31) and a first hydraulic clamping member (32), the support block (33) is fixed on the base plate (1), and a positioning groove matching with the front end of the swing arm is opened on one side wall of the support block (33), the first positioning block (31) is arranged side by side with the support block (33) to support the front end of the swing arm, and a first hydraulic clamping member (32) for pressing and fixing the front end of the swing arm is arranged on one side of the first positioning block (31).

3. The hydraulic clamp for the front upper aluminum swing arm of an automobile according to claim 2, characterized in that: The first hydraulic clamping member (32) includes a first cylinder body (321), a piston rod (322), a connecting plate (323), a second connecting column (324), a pressing arm (325), a pressing head (326) and a first connecting column (327), the first cylinder body (321) is fixed on the base plate (1), the piston rod (322) is arranged on the first cylinder body (321), the pressing arm (325) is rotatably installed on the piston rod (322), the first connecting column (327) is installed on the edge of the upper surface of the first cylinder body (321) through a fixing block, the inner end of one side of the pressing arm (325) has a second connecting column (324), and both ends of the connecting plate (323) are rotatably matched with the second connecting column (324) and the first connecting column (327) respectively, and a pressing head (326) in contact with the front section of the swing arm is detachably connected to one end of the lower surface of the pressing arm (325).

4. The hydraulic clamp for the front upper aluminum swing arm of an automobile according to claim 3 is characterized in that: A clamping groove is opened on the outer surface of one end of the first connecting column (327), and a clamping strip (328) for restricting the sliding of the connecting plate (323) is arranged inside the clamping groove.

5. The hydraulic clamp for the front upper aluminum swing arm of an automobile according to claim 4, characterized in that: A plurality of the clamping strips (328) are arranged, and the clamping strips (328) are in a "ji" shape.

6. The hydraulic clamp for the front upper aluminum swing arm of an automobile according to claim 1, characterized in that: The first limiting component (4) includes a second hydraulic clamping member (41), an elastic clamping member (42), a square support block (43) and a second positioning block (44), the elastic clamping member (42) and the second positioning block (44) are arranged side by side on the base plate (1), and a square support block (43) for supporting the swing arm is arranged between the elastic clamping member (42) and the second positioning block (44), and the second hydraulic clamping member (41) is arranged on one side of the square support block (43) to press the swing arm in contact with the square support block (43).

7. The hydraulic clamp for the front upper aluminum swing arm of an automobile according to claim 6, characterized in that: The elastic clamping member (42) includes a clamping base (421), a clamping block (422), a spring (423) and a guide rod (424); a sliding groove is provided on the clamping base (421); the clamping block (422) is slidably arranged inside the sliding groove; one end of the clamping block (422) has a guide rod (424) that is slidably matched with the clamping base (421); and a spring (423) is sleeved on the outer surface of the guide rod (424).

8. The hydraulic clamp for the front upper aluminum swing arm of an automobile according to claim 1, characterized in that: The second limiting assembly (5) comprises a third hydraulic clamp (51), a single-acting cylinder component (52) and a cylindrical support block (53); the single-acting cylinder component (52) and the cylindrical support block (53) are arranged side by side; the third hydraulic clamp (51) is arranged on one side of the cylindrical support block (53) to press the swing arm to contact the cylindrical support block (53).

9. The hydraulic clamp for the front upper aluminum swing arm of an automobile according to claim 8, characterized in that: The single-acting cylinder component (52) comprises a mounting seat (521), a second cylinder body (522), a tightening rod (523), a driving oil groove (524) and a through hole (525); the mounting seat (521) is fixed on the bottom plate (1), and a driving oil groove (524) matching with the oil channel is provided on the inner side of the mounting seat (521) along the height direction; the second cylinder body (522) is mounted on a side wall of the mounting seat (521) through a threaded portion on its outer surface, and a tightening rod (523) is slidably provided on the inner side of the second cylinder body (522); and a through hole (525) connected with the driving oil groove (524) is provided on the inner side of one end of the second cylinder body (522).

10. The hydraulic clamp for the front upper aluminum swing arm of an automobile according to claim 1, characterized in that: The positioning and pressing assembly (3), the first limiting assembly (4) and the second limiting assembly (5) are connected in pairs to form a triangle.

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